From 057aa1f6173501e1a62cf91fd08275e7da439166 Mon Sep 17 00:00:00 2001 From: jimblandy Date: Sat, 23 Jan 2010 05:29:16 +0000 Subject: Breakpad Linux Dumper: Add DWARF support. This adds DWARF support to the Breakpad Linux dumper. This is implemented as two handler classes: google_breakpad::DwarfCUToModule accepts data from dwarf2reader::CompilationUnit, and google_breakpad::DwarfLineToModule accepts data from a dwarf2reader::LineInfo, each populating a google_breakpad::Module with the results. Behaviors specific to particular source languages are handled by instances of a new class, google_breakpad::Language. An input executable may contain both STABS and DWARF debugging information: the dumper automatically recognizes what sorts of information are available, and integrates the data into a single output file. All classes have unit tests, providing line and branch coverage of all interesting code. Unit tests are written using the Google C++ Testing Framework, and the Google C++ Mocking Framework where appropriate. a=jimblandy, r=ccoutant git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@497 4c0a9323-5329-0410-9bdc-e9ce6186880e --- src/common/linux/dump_symbols.cc | 149 ++- src/common/linux/dwarf_cu_to_module.cc | 786 +++++++++++ src/common/linux/dwarf_cu_to_module.h | 248 ++++ src/common/linux/dwarf_cu_to_module_unittest.cc | 1456 +++++++++++++++++++++ src/common/linux/dwarf_line_to_module.cc | 119 ++ src/common/linux/dwarf_line_to_module.h | 111 ++ src/common/linux/dwarf_line_to_module_unittest.cc | 265 ++++ src/common/linux/language.cc | 77 ++ src/common/linux/language.h | 81 ++ src/common/linux/testdata/func-line-pairing.h | 676 ++++++++++ 10 files changed, 3941 insertions(+), 27 deletions(-) create mode 100644 src/common/linux/dwarf_cu_to_module.cc create mode 100644 src/common/linux/dwarf_cu_to_module.h create mode 100644 src/common/linux/dwarf_cu_to_module_unittest.cc create mode 100644 src/common/linux/dwarf_line_to_module.cc create mode 100644 src/common/linux/dwarf_line_to_module.h create mode 100644 src/common/linux/dwarf_line_to_module_unittest.cc create mode 100644 src/common/linux/language.cc create mode 100644 src/common/linux/language.h create mode 100644 src/common/linux/testdata/func-line-pairing.h (limited to 'src/common') diff --git a/src/common/linux/dump_symbols.cc b/src/common/linux/dump_symbols.cc index c4047ebe..74bf8670 100644 --- a/src/common/linux/dump_symbols.cc +++ b/src/common/linux/dump_symbols.cc @@ -40,8 +40,11 @@ #include #include +#include "common/dwarf/dwarf2diehandler.h" #include "common/linux/dump_stabs.h" #include "common/linux/dump_symbols.h" +#include "common/linux/dwarf_cu_to_module.h" +#include "common/linux/dwarf_line_to_module.h" #include "common/linux/file_id.h" #include "common/linux/module.h" #include "common/linux/stabs_reader.h" @@ -49,11 +52,10 @@ // This namespace contains helper functions. namespace { -using google_breakpad::Module; using google_breakpad::DumpStabsHandler; - -// Stab section name. -static const char *kStabName = ".stab"; +using google_breakpad::DwarfCUToModule; +using google_breakpad::DwarfLineToModule; +using google_breakpad::Module; // Fix offset into virtual address by adding the mapped base into offsets. // Make life easier when want to find something by offset. @@ -87,7 +89,7 @@ static bool IsValidElf(const ElfW(Ehdr) *elf_header) { static const ElfW(Shdr) *FindSectionByName(const char *name, const ElfW(Shdr) *sections, - const ElfW(Shdr) *strtab, + const ElfW(Shdr) *section_names, int nsection) { assert(name != NULL); assert(sections != NULL); @@ -99,19 +101,16 @@ static const ElfW(Shdr) *FindSectionByName(const char *name, for (int i = 0; i < nsection; ++i) { const char *section_name = - reinterpret_cast(strtab->sh_offset + sections[i].sh_name); + reinterpret_cast(section_names->sh_offset + sections[i].sh_name); if (!strncmp(name, section_name, name_len)) return sections + i; } return NULL; } -static bool LoadSymbols(const ElfW(Shdr) *stab_section, - const ElfW(Shdr) *stabstr_section, - Module *module) { - if (stab_section == NULL || stabstr_section == NULL) - return false; - +static bool LoadStabs(const ElfW(Shdr) *stab_section, + const ElfW(Shdr) *stabstr_section, + Module *module) { // A callback object to handle data from the STABS reader. DumpStabsHandler handler(module); // Find the addresses of the STABS data, and create a STABS reader object. @@ -121,13 +120,91 @@ static bool LoadSymbols(const ElfW(Shdr) *stab_section, stabstr, stabstr_section->sh_size, &handler); // Read the STABS data, and do post-processing. - if (! reader.Process()) + if (!reader.Process()) return false; handler.Finalize(); return true; } -static bool LoadSymbols(ElfW(Ehdr) *elf_header, Module *module) { +// A line-to-module loader that accepts line number info parsed by +// dwarf2reader::LineInfo and populates a Module and a line vector +// with the results. +class DumperLineToModule: public DwarfCUToModule::LineToModuleFunctor { + public: + // Create a line-to-module converter using BYTE_READER. + DumperLineToModule(dwarf2reader::ByteReader *byte_reader) + : byte_reader_(byte_reader) { } + void operator()(const char *program, uint64 length, + Module *module, vector *lines) { + DwarfLineToModule handler(module, lines); + dwarf2reader::LineInfo parser(program, length, byte_reader_, &handler); + parser.Start(); + } + private: + dwarf2reader::ByteReader *byte_reader_; +}; + +static bool LoadDwarf(const string &dwarf_filename, + const ElfW(Ehdr) *elf_header, + Module *module) { + // Figure out what endianness this file is. + dwarf2reader::Endianness endianness; + if (elf_header->e_ident[EI_DATA] == ELFDATA2LSB) + endianness = dwarf2reader::ENDIANNESS_LITTLE; + else if (elf_header->e_ident[EI_DATA] == ELFDATA2MSB) + endianness = dwarf2reader::ENDIANNESS_BIG; + else { + fprintf(stderr, "bad data encoding in ELF header: %d\n", + elf_header->e_ident[EI_DATA]); + return false; + } + dwarf2reader::ByteReader byte_reader(endianness); + + // Construct a context for this file. + DwarfCUToModule::FileContext file_context(dwarf_filename, module); + + // Build a map of the ELF file's sections. + const ElfW(Shdr) *sections + = reinterpret_cast(elf_header->e_shoff); + int num_sections = elf_header->e_shnum; + const ElfW(Shdr) *section_names = sections + elf_header->e_shstrndx; + for (int i = 0; i < num_sections; i++) { + const ElfW(Shdr) *section = §ions[i]; + string name = reinterpret_cast(section_names->sh_offset + + section->sh_name); + const char *contents = reinterpret_cast(section->sh_offset); + uint64 length = section->sh_size; + file_context.section_map[name] = std::make_pair(contents, length); + } + + // Parse all the compilation units in the .debug_info section. + DumperLineToModule line_to_module(&byte_reader); + std::pair debug_info_section + = file_context.section_map[".debug_info"]; + // We should never have been called if the file doesn't have a + // .debug_info section. + assert(debug_info_section.first); + uint64 debug_info_length = debug_info_section.second; + for (uint64 offset = 0; offset < debug_info_length;) { + // Make a handler for the root DIE that populates MODULE with the + // data we find. + DwarfCUToModule::WarningReporter reporter(dwarf_filename, offset); + DwarfCUToModule root_handler(&file_context, &line_to_module, &reporter); + // Make a Dwarf2Handler that drives our DIEHandler. + dwarf2reader::DIEDispatcher die_dispatcher(&root_handler); + // Make a DWARF parser for the compilation unit at OFFSET. + dwarf2reader::CompilationUnit reader(file_context.section_map, + offset, + &byte_reader, + &die_dispatcher); + // Process the entire compilation unit; get the offset of the next. + offset += reader.Start(); + } + return true; +} + +static bool LoadSymbols(const std::string &obj_file, ElfW(Ehdr) *elf_header, + Module *module) { // Translate all offsets in section headers into address. FixAddress(elf_header); ElfW(Addr) loading_addr = GetLoadingAddress( @@ -136,18 +213,36 @@ static bool LoadSymbols(ElfW(Ehdr) *elf_header, Module *module) { module->SetLoadAddress(loading_addr); const ElfW(Shdr) *sections = - reinterpret_cast(elf_header->e_shoff); - const ElfW(Shdr) *strtab = sections + elf_header->e_shstrndx; - const ElfW(Shdr) *stab_section = - FindSectionByName(kStabName, sections, strtab, elf_header->e_shnum); - if (stab_section == NULL) { - fprintf(stderr, "Stab section not found.\n"); + reinterpret_cast(elf_header->e_shoff); + const ElfW(Shdr) *section_names = sections + elf_header->e_shstrndx; + bool found_debug_info_section = false; + const ElfW(Shdr) *stab_section + = FindSectionByName(".stab", sections, section_names, + elf_header->e_shnum); + if (stab_section) { + const ElfW(Shdr) *stabstr_section = stab_section->sh_link + sections; + if (stabstr_section) { + found_debug_info_section = true; + if (!LoadStabs(stab_section, stabstr_section, module)) + fprintf(stderr, "\".stab\" section found, but failed to load STABS" + " debugging information\n"); + } + } + const ElfW(Shdr) *dwarf_section + = FindSectionByName(".debug_info", sections, section_names, + elf_header->e_shnum); + if (dwarf_section) { + found_debug_info_section = true; + if (!LoadDwarf(obj_file, elf_header, module)) + fprintf(stderr, "\".debug_info\" section found, but failed to load " + "DWARF debugging information\n"); + } + if (!found_debug_info_section) { + fprintf(stderr, "file contains no debugging information" + " (no \".stab\" or \".debug_info\" sections)\n"); return false; } - const ElfW(Shdr) *stabstr_section = stab_section->sh_link + sections; - - // Load symbols. - return LoadSymbols(stab_section, stabstr_section, module); + return true; } // @@ -268,11 +363,11 @@ bool DumpSymbols::WriteSymbolFile(const std::string &obj_file, unsigned char identifier[16]; google_breakpad::FileID file_id(obj_file.c_str()); - if (! file_id.ElfFileIdentifier(identifier)) + if (!file_id.ElfFileIdentifier(identifier)) return false; const char *architecture = ElfArchitecture(elf_header); - if (! architecture) + if (!architecture) return false; std::string name = BaseFileName(obj_file); @@ -280,7 +375,7 @@ bool DumpSymbols::WriteSymbolFile(const std::string &obj_file, std::string id = FormatIdentifier(identifier); Module module(name, os, architecture, id); - if (!LoadSymbols(elf_header, &module)) + if (!LoadSymbols(obj_file, elf_header, &module)) return false; if (!module.Write(sym_file)) return false; diff --git a/src/common/linux/dwarf_cu_to_module.cc b/src/common/linux/dwarf_cu_to_module.cc new file mode 100644 index 00000000..8063d25f --- /dev/null +++ b/src/common/linux/dwarf_cu_to_module.cc @@ -0,0 +1,786 @@ +// Copyright (c) 2009, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +#include +#include + +#include "common/linux/dwarf_cu_to_module.h" +#include "common/linux/dwarf_line_to_module.h" + +namespace google_breakpad { + +using std::map; +using std::vector; + +// Data provided by a DWARF specification DIE. +// +// In DWARF, the DIE for a definition may contain a DW_AT_specification +// attribute giving the offset of the corresponding declaration DIE, and +// the definition DIE may omit information given in the declaration. For +// example, it's common for a function's address range to appear only in +// its definition DIE, but its name to appear only in its declaration +// DIE. +// +// The dumper needs to be able to follow DW_AT_specification links to +// bring all this information together in a FUNC record. Conveniently, +// DIEs that are the target of such links have a DW_AT_declaration flag +// set, so we can identify them when we first see them, and record their +// contents for later reference. +// +// A Specification holds information gathered from a declaration DIE that +// we may need if we find a DW_AT_specification link pointing to it. +struct DwarfCUToModule::Specification { + // The name of the enclosing scope, or the empty string if there is none. + string enclosing_name; + + // The name for the specification DIE itself, without any enclosing + // name components. + string unqualified_name; +}; + +// Data global to the DWARF-bearing file that is private to the +// DWARF-to-Module process. +struct DwarfCUToModule::FilePrivate { + // A map from offsets of DIEs within the .debug_info section to + // Specifications describing those DIEs. Specification references can + // cross compilation unit boundaries. + SpecificationByOffset specifications; +}; + +DwarfCUToModule::FileContext::FileContext(const string &filename_arg, + Module *module_arg) + : filename(filename_arg), module(module_arg) { + file_private = new FilePrivate(); +} + +DwarfCUToModule::FileContext::~FileContext() { + delete file_private; +} + +// Information global to the particular compilation unit we're +// parsing. This is for data shared across the CU's entire DIE tree, +// and parameters from the code invoking the CU parser. +struct DwarfCUToModule::CUContext { + CUContext(FileContext *file_context_arg, WarningReporter *reporter_arg) + : file_context(file_context_arg), + reporter(reporter_arg), + language(Language::CPlusPlus) { } + ~CUContext() { + for (vector::iterator it = functions.begin(); + it != functions.end(); it++) + delete *it; + }; + + // The DWARF-bearing file into which this CU was incorporated. + FileContext *file_context; + + // For printing error messages. + WarningReporter *reporter; + + // The source language of this compilation unit. + const Language *language; + + // The functions defined in this compilation unit. We accumulate + // them here during parsing. Then, in DwarfCUToModule::Finish, we + // assign them lines and add them to file_context->module. + // + // Destroying this destroys all the functions this vector points to. + vector functions; +}; + +// Information about the context of a particular DIE. This is for +// information that changes as we descend the tree towards the leaves: +// the containing classes/namespaces, etc. +struct DwarfCUToModule::DIEContext { + // The fully-qualified name of the context. For example, for a + // tree like: + // + // DW_TAG_namespace Foo + // DW_TAG_class Bar + // DW_TAG_subprogram Baz + // + // in a C++ compilation unit, the DIEContext's name for the + // DW_TAG_subprogram DIE would be "Foo::Bar". The DIEContext's + // name for the DW_TAG_namespace DIE would be "". + string name; +}; + +// An abstract base class for all the dumper's DIE handlers. +class DwarfCUToModule::GenericDIEHandler: public dwarf2reader::DIEHandler { + public: + // Create a handler for the DIE at OFFSET whose compilation unit is + // described by CU_CONTEXT, and whose immediate context is described + // by PARENT_CONTEXT. + GenericDIEHandler(CUContext *cu_context, DIEContext *parent_context, + uint64 offset) + : cu_context_(cu_context), + parent_context_(parent_context), + offset_(offset), + declaration_(false), + specification_(NULL) { } + + // Derived classes' ProcessAttributeUnsigned can defer to this to + // handle DW_AT_declaration, or simply not override it. + void ProcessAttributeUnsigned(enum DwarfAttribute attr, + enum DwarfForm form, + uint64 data); + + // Derived classes' ProcessAttributeReference can defer to this to + // handle DW_AT_specification, or simply not override it. + void ProcessAttributeReference(enum DwarfAttribute attr, + enum DwarfForm form, + uint64 data); + + // Derived classes' ProcessAttributeReference can defer to this to + // handle DW_AT_specification, or simply not override it. + void ProcessAttributeString(enum DwarfAttribute attr, + enum DwarfForm form, + const string &data); + + protected: + // Compute and return the fully-qualified name of the DIE. If this + // DIE is a declaration DIE, to be cited by other DIEs' + // DW_AT_specification attributes, record its enclosing name and + // unqualified name in the specification table. + string ComputeQualifiedName(); + + CUContext *cu_context_; + DIEContext *parent_context_; + uint64 offset_; + + // If this DIE has a DW_AT_declaration attribute, this is its value. + // It is false on DIEs with no DW_AT_declaration attribute. + bool declaration_; + + // If this DIE has a DW_AT_specification attribute, this is the + // Specification structure for the DIE the attribute refers to. + // Otherwise, this is NULL. + Specification *specification_; + + // The value of the DW_AT_name attribute, or the empty string if the + // DIE has no such attribute. + string name_attribute_; +}; + +void DwarfCUToModule::GenericDIEHandler::ProcessAttributeUnsigned( + enum DwarfAttribute attr, + enum DwarfForm form, + uint64 data) { + switch (attr) { + case dwarf2reader::DW_AT_declaration: declaration_ = (data != 0); break; + default: break; + } +} + +void DwarfCUToModule::GenericDIEHandler::ProcessAttributeReference( + enum DwarfAttribute attr, + enum DwarfForm form, + uint64 data) { + switch (attr) { + case dwarf2reader::DW_AT_specification: { + FileContext *file_context = cu_context_->file_context; + SpecificationByOffset *specifications + = &file_context->file_private->specifications; + SpecificationByOffset::iterator spec = specifications->find(data); + if (spec != specifications->end()) { + specification_ = &spec->second; + } else { + // Technically, there's no reason a DW_AT_specification + // couldn't be a forward reference, but supporting that would + // be a lot of work (changing to a two-pass structure), and I + // don't think any producers we care about ever emit such + // things. + cu_context_->reporter->UnknownSpecification(offset_, data); + } + break; + } + default: break; + } +} + +void DwarfCUToModule::GenericDIEHandler::ProcessAttributeString( + enum DwarfAttribute attr, + enum DwarfForm form, + const string &data) { + switch (attr) { + case dwarf2reader::DW_AT_name: name_attribute_ = data; break; + default: break; + } +} + +string DwarfCUToModule::GenericDIEHandler::ComputeQualifiedName() { + // Find our unqualified name. If the DIE has its own DW_AT_name + // attribute, then use that; otherwise, check our specification. + const string *unqualified_name; + if (name_attribute_.empty() && specification_) + unqualified_name = &specification_->unqualified_name; + else + unqualified_name = &name_attribute_; + + // Find the name of our enclosing context. If we have a + // specification, it's the specification's enclosing context that + // counts; otherwise, use this DIE's context. + const string *enclosing_name; + if (specification_) + enclosing_name = &specification_->enclosing_name; + else + enclosing_name = &parent_context_->name; + + // If this DIE was marked as a declaration, record its names in the + // specification table. + if (declaration_) { + FileContext *file_context = cu_context_->file_context; + Specification spec; + spec.enclosing_name = *enclosing_name; + spec.unqualified_name = *unqualified_name; + file_context->file_private->specifications[offset_] = spec; + } + + // Combine the enclosing name and unqualified name to produce our + // own fully-qualified name. + return cu_context_->language->MakeQualifiedName(*enclosing_name, + *unqualified_name); +} + +// A handler class for DW_TAG_subprogram DIEs. +class DwarfCUToModule::FuncHandler: public GenericDIEHandler { + public: + FuncHandler(CUContext *cu_context, DIEContext *parent_context, + uint64 offset) + : GenericDIEHandler(cu_context, parent_context, offset), + low_pc_(0), high_pc_(0) { } + void ProcessAttributeUnsigned(enum DwarfAttribute attr, + enum DwarfForm form, + uint64 data); + bool EndAttributes(); + void Finish(); + + private: + // The fully-qualified name, as derived from name_attribute_, + // specification_, parent_context_. Computed in EndAttributes. + string name_; + uint64 low_pc_, high_pc_; // DW_AT_low_pc, DW_AT_high_pc +}; + +void DwarfCUToModule::FuncHandler::ProcessAttributeUnsigned( + enum DwarfAttribute attr, + enum DwarfForm form, + uint64 data) { + switch (attr) { + case dwarf2reader::DW_AT_low_pc: low_pc_ = data; break; + case dwarf2reader::DW_AT_high_pc: high_pc_ = data; break; + default: + GenericDIEHandler::ProcessAttributeUnsigned(attr, form, data); + break; + } +} + +bool DwarfCUToModule::FuncHandler::EndAttributes() { + // Compute our name, and record a specification, if appropriate. + name_ = ComputeQualifiedName(); + return true; +} + +void DwarfCUToModule::FuncHandler::Finish() { + // Did we collect the information we need? Not all DWARF function + // entries have low and high addresses (for example, inlined + // functions that were never used), but all the ones we're + // interested in cover a non-empty range of bytes. + if (low_pc_ < high_pc_) { + // Create a Module::Function based on the data we've gathered, and + // add it to the functions_ list. + Module::Function *func = new Module::Function; + func->name_ = name_; + func->address_ = low_pc_; + func->size_ = high_pc_ - low_pc_; + func->parameter_size_ = 0; + cu_context_->functions.push_back(func); + } +} + +// A handler for DIEs that contain functions and contribute a +// component to their names: namespaces, classes, etc. +class DwarfCUToModule::NamedScopeHandler: public GenericDIEHandler { + public: + NamedScopeHandler(CUContext *cu_context, DIEContext *parent_context, + uint64 offset) + : GenericDIEHandler(cu_context, parent_context, offset) { } + bool EndAttributes(); + DIEHandler *FindChildHandler(uint64 offset, enum DwarfTag tag, + const AttributeList &attrs); + + private: + DIEContext child_context_; // A context for our children. +}; + +bool DwarfCUToModule::NamedScopeHandler::EndAttributes() { + child_context_.name = ComputeQualifiedName(); + return true; +} + +dwarf2reader::DIEHandler *DwarfCUToModule::NamedScopeHandler::FindChildHandler( + uint64 offset, + enum DwarfTag tag, + const AttributeList &attrs) { + switch (tag) { + case dwarf2reader::DW_TAG_subprogram: + return new FuncHandler(cu_context_, &child_context_, offset); + case dwarf2reader::DW_TAG_namespace: + case dwarf2reader::DW_TAG_class_type: + case dwarf2reader::DW_TAG_structure_type: + case dwarf2reader::DW_TAG_union_type: + return new NamedScopeHandler(cu_context_, &child_context_, offset); + default: + return NULL; + } +}; + +void DwarfCUToModule::WarningReporter::CUHeading() { + if (printed_cu_header_) + return; + fprintf(stderr, "%s: in compilation unit '%s' (offset 0x%llx):\n", + filename_.c_str(), cu_name_.c_str(), cu_offset_); + printed_cu_header_ = true; +} + +void DwarfCUToModule::WarningReporter::UnknownSpecification(uint64 offset, + uint64 target) { + CUHeading(); + fprintf(stderr, "%s: the DIE at offset 0x%llx has a DW_AT_specification" + " attribute referring to the die at offset 0x%llx, which either" + " was not marked as a declaration, or comes later in the file", + filename_.c_str(), offset, target); +} + +void DwarfCUToModule::WarningReporter::MissingSection(const string &name) { + CUHeading(); + fprintf(stderr, "%s: warning: couldn't find DWARF '%s' section\n", + filename_.c_str(), name.c_str()); +} + +void DwarfCUToModule::WarningReporter::BadLineInfoOffset(uint64 offset) { + CUHeading(); + fprintf(stderr, "%s: warning: line number data offset beyond end" + " of '.debug_line' section\n", + filename_.c_str()); +} + +void DwarfCUToModule::WarningReporter::UncoveredHeading() { + if (printed_unpaired_header_) + return; + CUHeading(); + fprintf(stderr, "%s: warning: skipping unpaired lines/functions:\n", + filename_.c_str()); + printed_unpaired_header_ = true; +} + +void DwarfCUToModule::WarningReporter::UncoveredFunction( + const Module::Function &function) { + UncoveredHeading(); + fprintf(stderr, " function%s: %s\n", + function.size_ == 0 ? " (zero-length)" : "", + function.name_.c_str()); +} + +void DwarfCUToModule::WarningReporter::UncoveredLine(const Module::Line &line) { + UncoveredHeading(); + fprintf(stderr, " line%s: %s:%d at 0x%llx\n", + (line.size_ == 0 ? " (zero-length)" : ""), + line.file_->name_.c_str(), line.number_, line.address_); +} + +DwarfCUToModule::DwarfCUToModule(FileContext *file_context, + LineToModuleFunctor *line_reader, + WarningReporter *reporter) + : line_reader_(line_reader), has_source_line_info_(false) { + cu_context_ = new CUContext(file_context, reporter); + child_context_ = new DIEContext(); +} + +DwarfCUToModule::~DwarfCUToModule() { + delete cu_context_; + delete child_context_; +} + +void DwarfCUToModule::ProcessAttributeSigned(enum DwarfAttribute attr, + enum DwarfForm form, + int64 data) { + switch (attr) { + case dwarf2reader::DW_AT_language: // source language of this CU + SetLanguage(static_cast(data)); + break; + default: + break; + } +} + +void DwarfCUToModule::ProcessAttributeUnsigned(enum DwarfAttribute attr, + enum DwarfForm form, + uint64 data) { + switch (attr) { + case dwarf2reader::DW_AT_stmt_list: // Line number information. + has_source_line_info_ = true; + source_line_offset_ = data; + break; + case dwarf2reader::DW_AT_language: // source language of this CU + SetLanguage(static_cast(data)); + break; + default: + break; + } +} + +void DwarfCUToModule::ProcessAttributeString(enum DwarfAttribute attr, + enum DwarfForm form, + const string &data) { + if (attr == dwarf2reader::DW_AT_name) + cu_context_->reporter->SetCUName(data); +} + +bool DwarfCUToModule::EndAttributes() { + return true; +} + +dwarf2reader::DIEHandler *DwarfCUToModule::FindChildHandler( + uint64 offset, + enum DwarfTag tag, + const AttributeList &attrs) { + switch (tag) { + case dwarf2reader::DW_TAG_subprogram: + return new FuncHandler(cu_context_, child_context_, offset); + case dwarf2reader::DW_TAG_namespace: + case dwarf2reader::DW_TAG_class_type: + case dwarf2reader::DW_TAG_structure_type: + case dwarf2reader::DW_TAG_union_type: + return new NamedScopeHandler(cu_context_, child_context_, offset); + default: + return NULL; + } +} + +void DwarfCUToModule::SetLanguage(DwarfLanguage language) { + switch (language) { + case dwarf2reader::DW_LANG_Java: + cu_context_->language = Language::Java; + break; + + // DWARF has no generic language code for assembly language; this is + // what the GNU toolchain uses. + case dwarf2reader::DW_LANG_Mips_Assembler: + cu_context_->language = Language::Assembler; + break; + + // C++ covers so many cases that it probably has some way to cope + // with whatever the other languages throw at us. So make it the + // default. + // + // Objective C and Objective C++ seem to create entries for + // methods whose DW_AT_name values are already fully-qualified: + // "-[Classname method:]". These appear at the top level. + // + // DWARF data for C should never include namespaces or functions + // nested in struct types, but if it ever does, then C++'s + // notation is probably not a bad choice for that. + default: + case dwarf2reader::DW_LANG_ObjC: + case dwarf2reader::DW_LANG_ObjC_plus_plus: + case dwarf2reader::DW_LANG_C: + case dwarf2reader::DW_LANG_C89: + case dwarf2reader::DW_LANG_C99: + case dwarf2reader::DW_LANG_C_plus_plus: + cu_context_->language = Language::CPlusPlus; + break; + } +} + +void DwarfCUToModule::ReadSourceLines(uint64 offset) { + const dwarf2reader::SectionMap §ion_map + = cu_context_->file_context->section_map; + dwarf2reader::SectionMap::const_iterator map_entry + = section_map.find(".debug_line"); + if (map_entry == section_map.end()) { + cu_context_->reporter->MissingSection(".debug_line"); + return; + } + const char *section_start = map_entry->second.first; + uint64 section_length = map_entry->second.second; + if (offset >= section_length) { + cu_context_->reporter->BadLineInfoOffset(offset); + return; + } + (*line_reader_)(section_start + offset, section_length - offset, + cu_context_->file_context->module, &lines_); +} + +namespace { +// Return true if ADDRESS falls within the range of ITEM. +template +inline bool within(const T &item, Module::Address address) { + // Because Module::Address is unsigned, and unsigned arithmetic + // wraps around, this will be false if ADDRESS falls before the + // start of ITEM, or if it falls after ITEM's end. + return address - item.address_ < item.size_; +} +} + +void DwarfCUToModule::AssignLinesToFunctions() { + vector *functions = &cu_context_->functions; + WarningReporter *reporter = cu_context_->reporter; + + // This would be simpler if we assumed that source line entries + // don't cross function boundaries. However, there's no real reason + // to assume that (say) a series of function definitions on the same + // line wouldn't get coalesced into one line number entry. The + // DWARF spec certainly makes no such promises. + // + // So treat the functions and lines as peers, and take the trouble + // to compute their ranges' intersections precisely. In any case, + // the hair here is a constant factor for performance; the + // complexity from here on out is linear. + + // Put both our functions and lines in order by address. + sort(functions->begin(), functions->end(), + Module::Function::CompareByAddress); + sort(lines_.begin(), lines_.end(), Module::Line::CompareByAddress); + + // The last line that we used any piece of. We use this only for + // generating warnings. + const Module::Line *last_line_used = NULL; + + // The last function and line we warned about --- so we can avoid + // doing so more than once. + const Module::Function *last_function_cited = NULL; + const Module::Line *last_line_cited = NULL; + + // Make a single pass through both vectors from lower to higher + // addresses, populating each Function's lines_ vector with lines + // from our lines_ vector that fall within the function's address + // range. + vector::iterator func_it = functions->begin(); + vector::const_iterator line_it = lines_.begin(); + + Module::Address current; + + // Pointers to the referents of func_it and line_it, or NULL if the + // iterator is at the end of the sequence. + Module::Function *func; + const Module::Line *line; + + // Start current at the beginning of the first line or function, + // whichever is earlier. + if (func_it != functions->end() && line_it != lines_.end()) { + func = *func_it; + line = &*line_it; + current = std::min(func->address_, line->address_); + } else if (line_it != lines_.end()) { + func = NULL; + line = &*line_it; + current = line->address_; + } else if (func_it != functions->end()) { + func = *func_it; + line = NULL; + current = (*func_it)->address_; + } else { + return; + } + + while (func || line) { + // This loop has two invariants that hold at the top. + // + // First, at least one of the iterators is not at the end of its + // sequence, and those that are not refer to the earliest + // function or line that contains or starts after CURRENT. + // + // Note that every byte is in one of four states: it is covered + // or not covered by a function, and, independently, it is + // covered or not covered by a line. + // + // The second invariant is that CURRENT refers to a byte whose + // state is different from its predecessor, or it refers to the + // first byte in the address space. In other words, CURRENT is + // always the address of a transition. + // + // Note that, although each iteration advances CURRENT from one + // transition address to the next in each iteration, it might + // not advance the iterators. Suppose we have a function that + // starts with a line, has a gap, and then a second line, and + // suppose that we enter an iteration with CURRENT at the end of + // the first line. The next transition address is the start of + // the second line, after the gap, so the iteration should + // advance CURRENT to that point. At the head of that iteration, + // the invariants require that the line iterator be pointing at + // the second line. But this is also true at the head of the + // next. And clearly, the iteration must not change the function + // iterator. So neither iterator moves. + + // Assert the first invariant (see above). + assert(!func || current < func->address_ || within(*func, current)); + assert(!line || current < line->address_ || within(*line, current)); + + // The next transition after CURRENT. + Module::Address next_transition; + + // Figure out which state we're in, add lines or warn, and compute + // the next transition address. + if (func && current >= func->address_) { + if (line && current >= line->address_) { + // Covered by both a line and a function. + Module::Address func_left = func->size_ - (current - func->address_); + Module::Address line_left = line->size_ - (current - line->address_); + // This may overflow, but things work out. + next_transition = current + std::min(func_left, line_left); + Module::Line l = *line; + l.address_ = current; + l.size_ = next_transition - current; + func->lines_.push_back(l); + last_line_used = line; + } else { + // Covered by a function, but no line. + if (func != last_function_cited) { + reporter->UncoveredFunction(*func); + last_function_cited = func; + } + if (line && within(*func, line->address_)) + next_transition = line->address_; + else + // If this overflows, we'll catch it below. + next_transition = func->address_ + func->size_; + } + } else { + if (line && current >= line->address_) { + // Covered by a line, but no function. + // + // If GCC emits padding after one function to align the start + // of the next, then it will attribute the padding + // instructions to the last source line of function (to reduce + // the size of the line number info), but omit it from the + // DW_AT_{low,high}_pc range given in .debug_info (since it + // costs nothing to be precise there). If we did use at least + // some of the line we're about to skip, and it ends at the + // start of the next function, then assume this is what + // happened, and don't warn. + if (line != last_line_cited + && !(func + && line == last_line_used + && func->address_ - line->address_ == line->size_)) { + reporter->UncoveredLine(*line); + last_line_cited = line; + } + if (func && within(*line, func->address_)) + next_transition = func->address_; + else + // If this overflows, we'll catch it below. + next_transition = line->address_ + line->size_; + } else { + // Covered by neither a function nor a line. By the invariant, + // both func and line begin after CURRENT. The next transition + // is the start of the next function or next line, whichever + // is earliest. + assert (func || line); + if (func && line) + next_transition = std::min(func->address_, line->address_); + else if (func) + next_transition = func->address_; + else + next_transition = line->address_; + } + } + + // If a function or line abuts the end of the address space, then + // next_transition may end up being zero, in which case we've completed + // our pass. Handle that here, instead of trying to deal with it in + // each place we compute next_transition. + if (!next_transition) + break; + + // Advance iterators as needed. If lines overlap or functions overlap, + // then we could go around more than once. We don't worry too much + // about what result we produce in that case, just as long as we don't + // hang or crash. + while (func_it != functions->end() + && current >= (*func_it)->address_ + && !within(**func_it, next_transition)) + func_it++; + func = (func_it != functions->end()) ? *func_it : NULL; + while (line_it != lines_.end() + && current >= line_it->address_ + && !within(*line_it, next_transition)) + line_it++; + line = (line_it != lines_.end()) ? &*line_it : NULL; + + // We must make progress. + assert(next_transition > current); + current = next_transition; + } +} + +void DwarfCUToModule::Finish() { + // Assembly language files have no function data, and that gives us + // no place to store our line numbers (even though the GNU toolchain + // will happily produce source line info for assembly language + // files). To avoid spurious warnings about lines we can't assign + // to functions, skip CUs in languages that lack functions. + if (!cu_context_->language->HasFunctions()) + return; + + // Read source line info, if we have any. + if (has_source_line_info_) + ReadSourceLines(source_line_offset_); + + vector *functions = &cu_context_->functions; + + // Dole out lines to the appropriate functions. + AssignLinesToFunctions(); + + // Add our functions, which now have source lines assigned to them, + // to module_. + cu_context_->file_context->module->AddFunctions(functions->begin(), + functions->end()); + + // Ownership of the function objects has shifted from cu_context to + // the Module. + functions->clear(); +} + +bool DwarfCUToModule::StartCompilationUnit(uint64 offset, + uint8 address_size, + uint8 offset_size, + uint64 cu_length, + uint8 dwarf_version) { + return dwarf_version >= 2; +} + +bool DwarfCUToModule::StartRootDIE(uint64 offset, enum DwarfTag tag, + const AttributeList& attrs) { + // We don't deal with partial compilation units (the only other tag + // likely to be used for root DIE). + return tag == dwarf2reader::DW_TAG_compile_unit; +} + +} // namespace google_breakpad diff --git a/src/common/linux/dwarf_cu_to_module.h b/src/common/linux/dwarf_cu_to_module.h new file mode 100644 index 00000000..1620d2eb --- /dev/null +++ b/src/common/linux/dwarf_cu_to_module.h @@ -0,0 +1,248 @@ +// -*- mode: c++ -*- + +// Copyright (c) 2009, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +#ifndef COMMON_LINUX_DWARF_CU_TO_MODULE_H__ +#define COMMON_LINUX_DWARF_CU_TO_MODULE_H__ + +#include + +#include +#include +#include "common/linux/language.h" +#include "common/linux/module.h" +#include "common/dwarf/bytereader.h" +#include "common/dwarf/dwarf2diehandler.h" +#include "common/dwarf/dwarf2reader.h" + +namespace google_breakpad { + +using dwarf2reader::AttributeList; +using dwarf2reader::DwarfAttribute; +using dwarf2reader::DwarfForm; +using dwarf2reader::DwarfLanguage; +using dwarf2reader::DwarfTag; + +// Populate a google_breakpad::Module with DWARF debugging information. +// +// An instance of this class can be provided as a handler to a +// dwarf2reader::CompilationUnit DWARF parser. The handler uses the +// results of parsing to populate a google_breakpad::Module with +// source file, function, and source line information. +class DwarfCUToModule: public dwarf2reader::RootDIEHandler { + struct FilePrivate; + public: + + // Information global to the DWARF-bearing file we are processing, + // for use by DwarfCUToModule. Each DwarfCUToModule instance deals + // with a single compilation unit within the file, but information + // global to the whole file is held here. The client is responsible + // for filling it in appropriately (except for the 'file_private' + // field, which the constructor and destructor take care of), and + // then providing it to the DwarfCUToModule instance for each + // compilation unit we process in that file. + struct FileContext { + FileContext(const string &filename_arg, Module *module_arg); + ~FileContext(); + + // The name of this file, for use in error messages. + string filename; + + // A map of this file's sections, used for finding other DWARF + // sections that the .debug_info section may refer to. + dwarf2reader::SectionMap section_map; + + // The Module to which we're contributing definitions. + Module *module; + + // Inter-compilation unit data used internally by the handlers. + FilePrivate *file_private; + }; + + // An abstract base class for functors that handle DWARF line data + // for DwarfCUToModule. DwarfCUToModule could certainly just use + // dwarf2reader::LineInfo itself directly, but decoupling things + // this way makes unit testing a little easier. + class LineToModuleFunctor { + public: + LineToModuleFunctor() { } + virtual ~LineToModuleFunctor() { } + + // Populate MODULE and LINES with source file names and code/line + // mappings, given a pointer to some DWARF line number data + // PROGRAM, and an overestimate of its size. Add no zero-length + // lines to LINES. + virtual void operator()(const char *program, uint64 length, + Module *module, vector *lines) = 0; + }; + + // The interface DwarfCUToModule uses to report warnings. The member + // function definitions for this class write messages to stderr, but + // you can override them if you'd like to detect or report these + // conditions yourself. + class WarningReporter { + public: + // Warn about problems in the DWARF file FILENAME, in the + // compilation unit at OFFSET. + WarningReporter(const string &filename, uint64 cu_offset) + : filename_(filename), cu_offset_(cu_offset), printed_cu_header_(false), + printed_unpaired_header_(false) { } + virtual ~WarningReporter() { } + + // Set the name of the compilation unit we're processing to NAME. + virtual void SetCUName(const string &name) { cu_name_ = name; } + + // A DW_AT_specification in the DIE at OFFSET refers to a DIE we + // haven't processed yet, or that wasn't marked as a declaration, + // at TARGET. + virtual void UnknownSpecification(uint64 offset, uint64 target); + + // We were unable to find the DWARF section named SECTION_NAME. + virtual void MissingSection(const string §ion_name); + + // The CU's DW_AT_stmt_list offset OFFSET is bogus. + virtual void BadLineInfoOffset(uint64 offset); + + // FUNCTION includes code covered by no line number data. + virtual void UncoveredFunction(const Module::Function &function); + + // Line number NUMBER in LINE_FILE, of length LENGTH, includes code + // covered by no function. + virtual void UncoveredLine(const Module::Line &line); + + protected: + string filename_; + uint64 cu_offset_; + string cu_name_; + bool printed_cu_header_; + bool printed_unpaired_header_; + + private: + // Print a per-CU heading, once. + void CUHeading(); + // Print an unpaired function/line heading, once. + void UncoveredHeading(); + }; + + // Create a DWARF debugging info handler for a compilation unit + // within FILE_CONTEXT. This uses information received from the + // dwarf2reader::CompilationUnit DWARF parser to populate + // FILE_CONTEXT->module. Use LINE_READER to handle the compilation + // unit's line number data. Use REPORTER to report problems with the + // data we find. + DwarfCUToModule(FileContext *file_context, + LineToModuleFunctor *line_reader, + WarningReporter *reporter); + ~DwarfCUToModule(); + + void ProcessAttributeSigned(enum DwarfAttribute attr, + enum DwarfForm form, + int64 data); + void ProcessAttributeUnsigned(enum DwarfAttribute attr, + enum DwarfForm form, + uint64 data); + void ProcessAttributeString(enum DwarfAttribute attr, + enum DwarfForm form, + const string &data); + bool EndAttributes(); + DIEHandler *FindChildHandler(uint64 offset, enum DwarfTag tag, + const AttributeList &attrs); + + // Assign all our source Lines to the Functions that cover their + // addresses, and then add them to module_. + void Finish(); + + bool StartCompilationUnit(uint64 offset, uint8 address_size, + uint8 offset_size, uint64 cu_length, + uint8 dwarf_version); + bool StartRootDIE(uint64 offset, enum DwarfTag tag, + const AttributeList& attrs); + + private: + + // Used internally by the handler. Full definitions are in + // dwarf_cu_to_module.cc. + struct FilePrivate; + struct Specification; + struct CUContext; + struct DIEContext; + class GenericDIEHandler; + class FuncHandler; + class NamedScopeHandler; + + // A map from section offsets to specifications. + typedef map SpecificationByOffset; + + // Set this compilation unit's source language to LANGUAGE. + void SetLanguage(DwarfLanguage language); + + // Read source line information at OFFSET in the .debug_line + // section. Record source files in module_, but record source lines + // in lines_; we apportion them to functions in + // AssignLinesToFunctions. + void ReadSourceLines(uint64 offset); + + // Assign the lines in lines_ to the individual line lists of the + // functions in functions_. (DWARF line information maps an entire + // compilation unit at a time, and gives no indication of which + // lines belong to which functions, beyond their addresses.) + void AssignLinesToFunctions(); + + // The only reason cu_context_ and child_context_ are pointers is + // that we want to keep their definitions private to + // dwarf_cu_to_module.cc, instead of listing them all here. They are + // owned by this DwarfCUToModule: the constructor sets them, and the + // destructor deletes them. + + // The functor to use to handle line number data. + LineToModuleFunctor *line_reader_; + + // This compilation unit's context. + CUContext *cu_context_; + + // A context for our children. + DIEContext *child_context_; + + // True if this compilation unit has source line information. + bool has_source_line_info_; + + // The offset of this compilation unit's line number information in + // the .debug_line section. + uint64 source_line_offset_; + + // The line numbers we have seen thus far. We accumulate these here + // during parsing. Then, in Finish, we call AssignLinesToFunctions + // to dole them out to the appropriate functions. + vector lines_; +}; + +} // namespace google_breakpad + +#endif // COMMON_LINUX_DWARF_CU_TO_MODULE_H__ diff --git a/src/common/linux/dwarf_cu_to_module_unittest.cc b/src/common/linux/dwarf_cu_to_module_unittest.cc new file mode 100644 index 00000000..30ce6ca2 --- /dev/null +++ b/src/common/linux/dwarf_cu_to_module_unittest.cc @@ -0,0 +1,1456 @@ +// Copyright (c) 2009, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +// dwarf_cu_to_module.cc: Unit tests for google_breakpad::DwarfCUToModule. + +#include + +#include "breakpad_googletest_includes.h" +#include "common/linux/dwarf_cu_to_module.h" + +using std::vector; + +using dwarf2reader::AttributeList; +using dwarf2reader::DIEHandler; +using dwarf2reader::DwarfTag; +using dwarf2reader::DwarfAttribute; +using dwarf2reader::DwarfForm; +using dwarf2reader::RootDIEHandler; +using google_breakpad::DwarfCUToModule; +using google_breakpad::Module; + +using ::testing::_; +using ::testing::AtMost; +using ::testing::Invoke; +using ::testing::Return; +using ::testing::Test; +using ::testing::TestWithParam; +using ::testing::Values; +using ::testing::ValuesIn; + +// Mock classes. + +class MockLineToModuleFunctor: public DwarfCUToModule::LineToModuleFunctor { + public: + MOCK_METHOD4(mock_apply, void(const char *program, uint64 length, + Module *module, vector *lines)); + void operator()(const char *program, uint64 length, + Module *module, vector *lines) { + mock_apply(program, length, module, lines); + } +}; + +class MockWarningReporter: public DwarfCUToModule::WarningReporter { + public: + MockWarningReporter(const string &filename, uint64 cu_offset) + : DwarfCUToModule::WarningReporter(filename, cu_offset) { } + MOCK_METHOD1(SetCUName, void(const string &name)); + MOCK_METHOD2(UnknownSpecification, void(uint64 offset, uint64 target)); + MOCK_METHOD1(MissingSection, void(const string §ion_name)); + MOCK_METHOD1(BadLineInfoOffset, void(uint64 offset)); + MOCK_METHOD1(UncoveredFunction, void(const Module::Function &function)); + MOCK_METHOD1(UncoveredLine, void(const Module::Line &line)); +}; + +// A fixture class including all the objects needed to handle a +// compilation unit, and their entourage. It includes member functions +// for doing common kinds of setup and tests. +class CUFixtureBase { + public: + + // If we have: + // + // vector lines; + // AppendLinesFunctor appender(lines); + // + // then doing: + // + // appender(line_program, length, module, line_vector); + // + // will append lines to the end of line_vector. We can use this with + // MockLineToModuleFunctor like this: + // + // MockLineToModuleFunctor l2m; + // EXPECT_CALL(l2m, mock_apply(_,_,_,_)) + // .WillOnce(DoAll(Invoke(appender), Return())); + // + // in which case calling l2m with some line vector will append lines. + class AppendLinesFunctor { + public: + AppendLinesFunctor(const vector *lines) : lines_(lines) { } + void operator()(const char *program, uint64 length, + Module *module, vector *lines) { + lines->insert(lines->end(), lines_->begin(), lines_->end()); + } + private: + const vector *lines_; + }; + + CUFixtureBase() + : module_("module-name", "module-os", "module-arch", "module-id"), + file_context_("dwarf-filename", &module_), + language_(dwarf2reader::DW_LANG_none), + language_signed_(false), + appender_(&lines_), + reporter_("dwarf-filename", 0xcf8f9bb6443d29b5LL), + root_handler_(&file_context_, &line_reader_, &reporter_), + functions_filled_(false) { + // By default, expect no warnings to be reported, and expect the + // compilation unit's name to be provided. The test can override + // these expectations. + EXPECT_CALL(reporter_, SetCUName("compilation-unit-name")).Times(1); + EXPECT_CALL(reporter_, UnknownSpecification(_, _)).Times(0); + EXPECT_CALL(reporter_, MissingSection(_)).Times(0); + EXPECT_CALL(reporter_, BadLineInfoOffset(_)).Times(0); + EXPECT_CALL(reporter_, UncoveredFunction(_)).Times(0); + EXPECT_CALL(reporter_, UncoveredLine(_)).Times(0); + + // By default, expect the line program reader not to be invoked. We + // may override this in StartCU. + EXPECT_CALL(line_reader_, mock_apply(_,_,_,_)).Times(0); + + // The handler will consult this section map to decide what to + // pass to our line reader. + file_context_.section_map[".debug_line"] = std::make_pair(dummy_line_program_, + dummy_line_size_); + } + + // Add a line with the given address, size, filename, and line + // number to the end of the statement list the handler will receive + // when it invokes its LineToModuleFunctor. Call this before calling + // StartCU. + void PushLine(Module::Address address, Module::Address size, + const string &filename, int line_number); + + // Use LANGUAGE for the compilation unit. More precisely, arrange + // for StartCU to pass the compilation unit's root DIE a + // DW_AT_language attribute whose value is LANGUAGE. + void SetLanguage(dwarf2reader::DwarfLanguage language) { + language_ = language; + } + + // If SIGNED true, have StartCU report DW_AT_language as a signed + // attribute; if false, have it report it as unsigned. + void SetLanguageSigned(bool is_signed) { language_signed_ = is_signed; } + + // Call the handler this.root_handler_'s StartCompilationUnit and + // StartRootDIE member functions, passing it appropriate attributes as + // determined by prior calls to PushLine and SetLanguage. Leave + // this.root_handler_ ready to hear about children: call + // this.root_handler_.EndAttributes, but not this.root_handler_.Finish. + void StartCU(); + + // Add some strange attributes/form pairs to the end of ATTRS. + void PushBackStrangeAttributes(dwarf2reader::AttributeList *attrs); + + // Have HANDLER process some strange attribute/form/value triples. + // These will match those promised by PushBackStrangeAttributes. + void ProcessStrangeAttributes(dwarf2reader::DIEHandler *handler); + + // Start a child DIE of PARENT with the given tag and name. Leave + // the handler ready to hear about children: call EndAttributes, but + // not Finish. + DIEHandler *StartNamedDIE(DIEHandler *parent, DwarfTag tag, + const string &name); + + // Start a child DIE of PARENT with the given tag and a + // DW_AT_specification attribute whose value is SPECIFICATION. Leave + // the handler ready to hear about children: call EndAttributes, but + // not Finish. If NAME is non-zero, use it as the DW_AT_name + // attribute. + DIEHandler *StartSpecifiedDIE(DIEHandler *parent, DwarfTag tag, + uint64 offset, const char *name = NULL); + + // Define a function as a child of PARENT with the given name, + // address, and size. Call EndAttributes and Finish; one cannot + // define children of the defined function's DIE. + void DefineFunction(DIEHandler *parent, const string &name, + Module::Address address, Module::Address size); + + // Create a declaration DIE as a child of PARENT with the given + // offset, tag and name. If NAME is the empty string, don't provide + // a DW_AT_name attribute. Call EndAttributes and Finish. + void DeclarationDIE(DIEHandler *parent, uint64 offset, + DwarfTag tag, const string &name); + + // Create a definition DIE as a child of PARENT with the given tag + // that refers to the declaration DIE at offset SPECIFICATION as its + // specification. If NAME is non-empty, pass it as the DW_AT_name + // attribute. If SIZE is non-zero, record ADDRESS and SIZE as + // low_pc/high_pc attributes. + void DefinitionDIE(DIEHandler *parent, DwarfTag tag, + uint64 specification, const string &name, + Module::Address address = 0, Module::Address size = 0); + + // The following Test* functions should be called after calling + // this.root_handler_.Finish. After that point, no further calls + // should be made on the handler. + + // Test that the number of functions defined in the module this.module_ is + // equal to EXPECTED. + void TestFunctionCount(size_t expected); + + // Test that the I'th function (ordered by address) in the module + // this.module_ has the given name, address, and size, and that its + // parameter size is zero. + void TestFunction(int i, const string &name, + Module::Address address, Module::Address size); + + // Test that the number of source lines owned by the I'th function + // in the module this.module_ is equal to EXPECTED. + void TestLineCount(int i, size_t expected); + + // Test that the J'th line (ordered by address) of the I'th function + // (again, by address) has the given address, size, filename, and + // line number. + void TestLine(int i, int j, Module::Address address, Module::Address size, + const string &filename, int number); + + // Actual objects under test. + Module module_; + DwarfCUToModule::FileContext file_context_; + + // If this is not DW_LANG_none, we'll pass it as a DW_AT_language + // attribute to the compilation unit. This defaults to DW_LANG_none. + dwarf2reader::DwarfLanguage language_; + + // If this is true, report DW_AT_language as a signed value; if false, + // report it as an unsigned value. + bool language_signed_; + + // If this is not empty, we'll give the CU a DW_AT_stmt_list + // attribute that, when passed to line_reader_, adds these lines to the + // provided lines array. + vector lines_; + + // Mock line program reader. + MockLineToModuleFunctor line_reader_; + AppendLinesFunctor appender_; + static const char dummy_line_program_[]; + static const size_t dummy_line_size_; + + MockWarningReporter reporter_; + DwarfCUToModule root_handler_; + + private: + // Fill functions_, if we haven't already. + void FillFunctions(); + + // If functions_filled_ is true, this is a table of functions we've + // extracted from module_, sorted by address. + vector functions_; + // True if we have filled the above vector with this.module_'s function list. + bool functions_filled_; +}; + +const char CUFixtureBase::dummy_line_program_[] = "lots of fun data"; +const size_t CUFixtureBase::dummy_line_size_ = + sizeof (CUFixtureBase::dummy_line_program_); + +void CUFixtureBase::PushLine(Module::Address address, Module::Address size, + const string &filename, int line_number) { + Module::Line l; + l.address_ = address; + l.size_ = size; + l.file_ = module_.FindFile(filename); + l.number_ = line_number; + lines_.push_back(l); +} + +void CUFixtureBase::StartCU() { + // If we have lines, make the line reader expect to be invoked at + // most once. (Hey, if the handler can pass its tests without + // bothering to read the line number data, that's great.) + // Have it add the lines passed to PushLine. Otherwise, leave the + // initial expectation (no calls) in force. + if (!lines_.empty()) + EXPECT_CALL(line_reader_, + mock_apply(&dummy_line_program_[0], dummy_line_size_, + &module_, _)) + .Times(AtMost(1)) + .WillOnce(DoAll(Invoke(appender_), Return())); + + ASSERT_TRUE(root_handler_ + .StartCompilationUnit(0x51182ec307610b51ULL, 0x81, 0x44, + 0x4241b4f33720dd5cULL, 3)); + { + dwarf2reader::AttributeList attrs; + attrs.push_back(make_pair(dwarf2reader::DW_AT_name, + dwarf2reader::DW_FORM_strp)); + if (!lines_.empty()) + attrs.push_back(make_pair(dwarf2reader::DW_AT_stmt_list, + dwarf2reader::DW_FORM_ref4)); + if (language_ != dwarf2reader::DW_LANG_none) + attrs.push_back(make_pair(dwarf2reader::DW_AT_language, + language_signed_ + ? dwarf2reader::DW_FORM_sdata + : dwarf2reader::DW_FORM_udata)); + ASSERT_TRUE(root_handler_.StartRootDIE(0x02e56bfbda9e7337ULL, + dwarf2reader::DW_TAG_compile_unit, + attrs)); + } + root_handler_.ProcessAttributeString(dwarf2reader::DW_AT_name, + dwarf2reader::DW_FORM_strp, + "compilation-unit-name"); + if (!lines_.empty()) + root_handler_.ProcessAttributeUnsigned(dwarf2reader::DW_AT_stmt_list, + dwarf2reader::DW_FORM_ref4, + 0); + if (language_ != dwarf2reader::DW_LANG_none) { + if (language_signed_) + root_handler_.ProcessAttributeSigned(dwarf2reader::DW_AT_language, + dwarf2reader::DW_FORM_sdata, + language_); + else + root_handler_.ProcessAttributeUnsigned(dwarf2reader::DW_AT_language, + dwarf2reader::DW_FORM_udata, + language_); + } + ASSERT_TRUE(root_handler_.EndAttributes()); +} + +void CUFixtureBase::PushBackStrangeAttributes( + dwarf2reader::AttributeList *attrs) { + attrs->push_back(make_pair((DwarfAttribute) 0xf560dead, + (DwarfForm) 0x4106e4db)); + attrs->push_back(make_pair((DwarfAttribute) 0x85380095, + (DwarfForm) 0x0f16fe87)); + attrs->push_back(make_pair((DwarfAttribute) 0xf7f7480f, + (DwarfForm) 0x829e038a)); + attrs->push_back(make_pair((DwarfAttribute) 0xa55ffb51, + (DwarfForm) 0x2f43b041)); + attrs->push_back(make_pair((DwarfAttribute) 0x2fde304a, + (DwarfForm) 0x895ffa23)); +} + +void CUFixtureBase::ProcessStrangeAttributes( + dwarf2reader::DIEHandler *handler) { + handler->ProcessAttributeUnsigned((DwarfAttribute) 0xf560dead, + (DwarfForm) 0x4106e4db, + 0xa592571997facda1ULL); + handler->ProcessAttributeSigned((DwarfAttribute) 0x85380095, + (DwarfForm) 0x0f16fe87, + 0x12602a4e3bf1f446LL); + handler->ProcessAttributeReference((DwarfAttribute) 0xf7f7480f, + (DwarfForm) 0x829e038a, + 0x50fddef44734fdecULL); + static const char buffer[10] = "frobynode"; + handler->ProcessAttributeBuffer((DwarfAttribute) 0xa55ffb51, + (DwarfForm) 0x2f43b041, + buffer, sizeof(buffer)); + handler->ProcessAttributeString((DwarfAttribute) 0x2f43b041, + (DwarfForm) 0x895ffa23, + "strange string"); +} + +DIEHandler *CUFixtureBase::StartNamedDIE(DIEHandler *parent, + DwarfTag tag, + const string &name) { + dwarf2reader::AttributeList attrs; + attrs.push_back(make_pair(dwarf2reader::DW_AT_name, + dwarf2reader::DW_FORM_strp)); + PushBackStrangeAttributes(&attrs); + dwarf2reader::DIEHandler *handler + = parent->FindChildHandler(0x8f4c783c0467c989ULL, tag, attrs); + if (!handler) + return NULL; + handler->ProcessAttributeString(dwarf2reader::DW_AT_name, + dwarf2reader::DW_FORM_strp, + name); + ProcessStrangeAttributes(handler); + if (!handler->EndAttributes()) { + handler->Finish(); + delete handler; + return NULL; + } + + return handler; +} + +DIEHandler *CUFixtureBase::StartSpecifiedDIE(DIEHandler *parent, + DwarfTag tag, + uint64 specification, + const char *name) { + dwarf2reader::AttributeList attrs; + if (name) + attrs.push_back(make_pair(dwarf2reader::DW_AT_name, + dwarf2reader::DW_FORM_strp)); + attrs.push_back(make_pair(dwarf2reader::DW_AT_specification, + dwarf2reader::DW_FORM_ref4)); + dwarf2reader::DIEHandler *handler + = parent->FindChildHandler(0x8f4c783c0467c989ULL, tag, attrs); + if (!handler) + return NULL; + if (name) + handler->ProcessAttributeString(dwarf2reader::DW_AT_name, + dwarf2reader::DW_FORM_strp, + name); + handler->ProcessAttributeReference(dwarf2reader::DW_AT_specification, + dwarf2reader::DW_FORM_ref4, + specification); + if (!handler->EndAttributes()) { + handler->Finish(); + delete handler; + return NULL; + } + + return handler; +} + +void CUFixtureBase::DefineFunction(dwarf2reader::DIEHandler *parent, + const string &name, Module::Address address, + Module::Address size) { + dwarf2reader::AttributeList func_attrs; + func_attrs.push_back(make_pair(dwarf2reader::DW_AT_name, + dwarf2reader::DW_FORM_strp)); + func_attrs.push_back(make_pair(dwarf2reader::DW_AT_low_pc, + dwarf2reader::DW_FORM_addr)); + func_attrs.push_back(make_pair(dwarf2reader::DW_AT_high_pc, + dwarf2reader::DW_FORM_addr)); + PushBackStrangeAttributes(&func_attrs); + dwarf2reader::DIEHandler *func + = parent->FindChildHandler(0xe34797c7e68590a8LL, + dwarf2reader::DW_TAG_subprogram, + func_attrs); + ASSERT_TRUE(func != NULL); + func->ProcessAttributeString(dwarf2reader::DW_AT_name, + dwarf2reader::DW_FORM_strp, + name); + func->ProcessAttributeUnsigned(dwarf2reader::DW_AT_low_pc, + dwarf2reader::DW_FORM_addr, + address); + func->ProcessAttributeUnsigned(dwarf2reader::DW_AT_high_pc, + dwarf2reader::DW_FORM_addr, + address + size); + ProcessStrangeAttributes(func); + EXPECT_TRUE(func->EndAttributes()); + func->Finish(); + delete func; +} + +void CUFixtureBase::DeclarationDIE(DIEHandler *parent, uint64 offset, + DwarfTag tag, + const string &name) { + dwarf2reader::AttributeList attrs; + if (!name.empty()) + attrs.push_back(make_pair(dwarf2reader::DW_AT_name, + dwarf2reader::DW_FORM_strp)); + attrs.push_back(make_pair(dwarf2reader::DW_AT_declaration, + dwarf2reader::DW_FORM_flag)); + dwarf2reader::DIEHandler *die = parent->FindChildHandler(offset, tag, attrs); + ASSERT_TRUE(die != NULL); + if (!name.empty()) + die->ProcessAttributeString(dwarf2reader::DW_AT_name, + dwarf2reader::DW_FORM_strp, + name); + die->ProcessAttributeUnsigned(dwarf2reader::DW_AT_declaration, + dwarf2reader::DW_FORM_flag, + 1); + EXPECT_TRUE(die->EndAttributes()); + die->Finish(); + delete die; +} + +void CUFixtureBase::DefinitionDIE(DIEHandler *parent, + DwarfTag tag, + uint64 specification, + const string &name, + Module::Address address, + Module::Address size) { + dwarf2reader::AttributeList attrs; + attrs.push_back(make_pair(dwarf2reader::DW_AT_specification, + dwarf2reader::DW_FORM_ref4)); + if (!name.empty()) + attrs.push_back(make_pair(dwarf2reader::DW_AT_name, + dwarf2reader::DW_FORM_strp)); + if (size) { + attrs.push_back(make_pair(dwarf2reader::DW_AT_low_pc, + dwarf2reader::DW_FORM_addr)); + attrs.push_back(make_pair(dwarf2reader::DW_AT_high_pc, + dwarf2reader::DW_FORM_addr)); + } + dwarf2reader::DIEHandler *die + = parent->FindChildHandler(0x6ccfea031a9e6cc9ULL, tag, attrs); + ASSERT_TRUE(die != NULL); + die->ProcessAttributeReference(dwarf2reader::DW_AT_specification, + dwarf2reader::DW_FORM_ref4, + specification); + if (!name.empty()) + die->ProcessAttributeString(dwarf2reader::DW_AT_name, + dwarf2reader::DW_FORM_strp, + name); + if (size) { + die->ProcessAttributeUnsigned(dwarf2reader::DW_AT_low_pc, + dwarf2reader::DW_FORM_addr, + address); + die->ProcessAttributeUnsigned(dwarf2reader::DW_AT_high_pc, + dwarf2reader::DW_FORM_addr, + address + size); + } + EXPECT_TRUE(die->EndAttributes()); + die->Finish(); + delete die; +} + +void CUFixtureBase::FillFunctions() { + if (functions_filled_) + return; + module_.GetFunctions(&functions_, functions_.end()); + sort(functions_.begin(), functions_.end(), + Module::Function::CompareByAddress); + functions_filled_ = true; +} + +void CUFixtureBase::TestFunctionCount(size_t expected) { + FillFunctions(); + ASSERT_EQ(expected, functions_.size()); +} + +void CUFixtureBase::TestFunction(int i, const string &name, + Module::Address address, + Module::Address size) { + FillFunctions(); + ASSERT_LT((size_t) i, functions_.size()); + + Module::Function *function = functions_[i]; + EXPECT_EQ(name, function->name_); + EXPECT_EQ(address, function->address_); + EXPECT_EQ(size, function->size_); + EXPECT_EQ(0U, function->parameter_size_); +} + +void CUFixtureBase::TestLineCount(int i, size_t expected) { + FillFunctions(); + ASSERT_LT((size_t) i, functions_.size()); + + ASSERT_EQ(expected, functions_[i]->lines_.size()); +} + +void CUFixtureBase::TestLine(int i, int j, + Module::Address address, Module::Address size, + const string &filename, int number) { + FillFunctions(); + ASSERT_LT((size_t) i, functions_.size()); + ASSERT_LT((size_t) j, functions_[i]->lines_.size()); + + Module::Line *line = &functions_[i]->lines_[j]; + EXPECT_EQ(address, line->address_); + EXPECT_EQ(size, line->size_); + EXPECT_EQ(filename, line->file_->name_.c_str()); + EXPECT_EQ(number, line->number_); +} + +// Include caller locations for our test subroutines. +#define TRACE(call) do { SCOPED_TRACE("called from here"); call; } while (0) +#define PushLine(a,b,c,d) TRACE(PushLine((a),(b),(c),(d))) +#define SetLanguage(a) TRACE(SetLanguage(a)) +#define StartCU() TRACE(StartCU()) +#define DefineFunction(a,b,c,d) TRACE(DefineFunction((a),(b),(c),(d))) +#define DeclarationDIE(a,b,c,d) TRACE(DeclarationDIE((a),(b),(c),(d))) +#define DefinitionDIE(a,b,c,d,e,f) TRACE(DefinitionDIE((a),(b),(c),(d),(e),(f))) +#define TestFunctionCount(a) TRACE(TestFunctionCount(a)) +#define TestFunction(a,b,c,d) TRACE(TestFunction((a),(b),(c),(d))) +#define TestLineCount(a,b) TRACE(TestLineCount((a),(b))) +#define TestLine(a,b,c,d,e,f) TRACE(TestLine((a),(b),(c),(d),(e),(f))) + +class Simple: public CUFixtureBase, public Test { +}; + +TEST_F(Simple, OneFunc) { + PushLine(0x938cf8c07def4d34ULL, 0x55592d727f6cd01fLL, "line-file", 246571772); + + StartCU(); + DefineFunction(&root_handler_, "function1", + 0x938cf8c07def4d34ULL, 0x55592d727f6cd01fLL); + root_handler_.Finish(); + + TestFunctionCount(1); + TestFunction(0, "function1", 0x938cf8c07def4d34ULL, 0x55592d727f6cd01fLL); + TestLineCount(0, 1); + TestLine(0, 0, 0x938cf8c07def4d34ULL, 0x55592d727f6cd01fLL, "line-file", + 246571772); +} + +TEST_F(Simple, IrrelevantRootChildren) { + StartCU(); + dwarf2reader::AttributeList no_attrs; + EXPECT_FALSE(root_handler_ + .FindChildHandler(0x7db32bff4e2dcfb1ULL, + dwarf2reader::DW_TAG_lexical_block, no_attrs)); +} + +TEST_F(Simple, IrrelevantNamedScopeChildren) { + StartCU(); + dwarf2reader::AttributeList no_attrs; + DIEHandler *class_A_handler + = StartNamedDIE(&root_handler_, dwarf2reader::DW_TAG_class_type, "class_A"); + EXPECT_TRUE(class_A_handler != NULL); + EXPECT_FALSE(class_A_handler + ->FindChildHandler(0x02e55999b865e4e9ULL, + dwarf2reader::DW_TAG_lexical_block, + no_attrs)); + delete class_A_handler; +} + +// Verify that FileContexts can safely be deleted unused. +TEST_F(Simple, UnusedFileContext) { + Module m("module-name", "module-os", "module-arch", "module-id"); + DwarfCUToModule::FileContext fc("dwarf-filename", &m); + + // Kludge: satisfy reporter_'s expectation. + reporter_.SetCUName("compilation-unit-name"); +} + +// An address range. +struct Range { + Module::Address start, end; +}; + +// Test data for pairing functions and lines. +struct Situation { + // Two function intervals, and two line intervals. + Range functions[2], lines[2]; + + // The number of lines we expect to be assigned to each of the + // functions, and the address ranges. + int paired_count[2]; + Range paired[2][2]; + + // The number of functions that are not entirely covered by lines, + // and vice versa. + int uncovered_functions, uncovered_lines; +}; + +#define PAIRING(func1_start, func1_end, func2_start, func2_end, \ + line1_start, line1_end, line2_start, line2_end, \ + func1_num_lines, func2_num_lines, \ + func1_line1_start, func1_line1_end, \ + func1_line2_start, func1_line2_end, \ + func2_line1_start, func2_line1_end, \ + func2_line2_start, func2_line2_end, \ + uncovered_functions, uncovered_lines) \ + { { { func1_start, func1_end }, { func2_start, func2_end } }, \ + { { line1_start, line1_end }, { line2_start, line2_end } }, \ + { func1_num_lines, func2_num_lines }, \ + { { { func1_line1_start, func1_line1_end }, \ + { func1_line2_start, func1_line2_end } }, \ + { { func2_line1_start, func2_line1_end }, \ + { func2_line2_start, func2_line2_end } } }, \ + uncovered_functions, uncovered_lines }, + +Situation situations[] = { +#include "common/linux/testdata/func-line-pairing.h" +}; + +#undef PAIRING + +class FuncLinePairing: public CUFixtureBase, + public TestWithParam { }; + +INSTANTIATE_TEST_CASE_P(AllSituations, FuncLinePairing, + ValuesIn(situations)); + +TEST_P(FuncLinePairing, Pairing) { + const Situation &s = GetParam(); + PushLine(s.lines[0].start, + s.lines[0].end - s.lines[0].start, + "line-file", 67636963); + PushLine(s.lines[1].start, + s.lines[1].end - s.lines[1].start, + "line-file", 67636963); + if (s.uncovered_functions) + EXPECT_CALL(reporter_, UncoveredFunction(_)) + .Times(s.uncovered_functions) + .WillRepeatedly(Return()); + if (s.uncovered_lines) + EXPECT_CALL(reporter_, UncoveredLine(_)) + .Times(s.uncovered_lines) + .WillRepeatedly(Return()); + + StartCU(); + DefineFunction(&root_handler_, "function1", + s.functions[0].start, + s.functions[0].end - s.functions[0].start); + DefineFunction(&root_handler_, "function2", + s.functions[1].start, + s.functions[1].end - s.functions[1].start); + root_handler_.Finish(); + + TestFunctionCount(2); + TestFunction(0, "function1", + s.functions[0].start, + s.functions[0].end - s.functions[0].start); + TestLineCount(0, s.paired_count[0]); + for (int i = 0; i < s.paired_count[0]; i++) + TestLine(0, i, s.paired[0][i].start, + s.paired[0][i].end - s.paired[0][i].start, + "line-file", 67636963); + TestFunction(1, "function2", + s.functions[1].start, + s.functions[1].end - s.functions[1].start); + TestLineCount(1, s.paired_count[1]); + for (int i = 0; i < s.paired_count[1]; i++) + TestLine(1, i, s.paired[1][i].start, + s.paired[1][i].end - s.paired[1][i].start, + "line-file", 67636963); +} + +TEST_F(FuncLinePairing, EmptyCU) { + + StartCU(); + root_handler_.Finish(); + + TestFunctionCount(0); +} + +TEST_F(FuncLinePairing, LinesNoFuncs) { + PushLine(40, 2, "line-file", 82485646); + EXPECT_CALL(reporter_, UncoveredLine(_)).WillOnce(Return()); + + StartCU(); + root_handler_.Finish(); + + TestFunctionCount(0); +} + +TEST_F(FuncLinePairing, FuncsNoLines) { + EXPECT_CALL(reporter_, UncoveredFunction(_)).WillOnce(Return()); + + StartCU(); + DefineFunction(&root_handler_, "function1", 0x127da12ffcf5c51fULL, 0x1000U); + root_handler_.Finish(); + + TestFunctionCount(1); + TestFunction(0, "function1", 0x127da12ffcf5c51fULL, 0x1000U); +} + +TEST_F(FuncLinePairing, GapThenFunction) { + PushLine(20, 2, "line-file-2", 174314698); + PushLine(10, 2, "line-file-1", 263008005); + + StartCU(); + DefineFunction(&root_handler_, "function1", 10, 2); + DefineFunction(&root_handler_, "function2", 20, 2); + root_handler_.Finish(); + + TestFunctionCount(2); + TestFunction(0, "function1", 10, 2); + TestLineCount(0, 1); + TestLine(0, 0, 10, 2, "line-file-1", 263008005); + TestFunction(1, "function2", 20, 2); + TestLineCount(1, 1); + TestLine(1, 0, 20, 2, "line-file-2", 174314698); +} + +// If GCC emits padding after one function to align the start of +// the next, then it will attribute the padding instructions to +// the last source line of function (to reduce the size of the +// line number info), but omit it from the DW_AT_{low,high}_pc +// range given in .debug_info (since it costs nothing to be +// precise there). If we did use at least some of the line +// we're about to skip, then assume this is what happened, and +// don't warn. +TEST_F(FuncLinePairing, GCCAlignmentStretch) { + PushLine(10, 10, "line-file", 63351048); + PushLine(20, 10, "line-file", 61661044); + + StartCU(); + DefineFunction(&root_handler_, "function1", 10, 5); + // five-byte gap between functions, covered by line 63351048. + // This should not elicit a warning. + DefineFunction(&root_handler_, "function2", 20, 10); + root_handler_.Finish(); + + TestFunctionCount(2); + TestFunction(0, "function1", 10, 5); + TestLineCount(0, 1); + TestLine(0, 0, 10, 5, "line-file", 63351048); + TestFunction(1, "function2", 20, 10); + TestLineCount(1, 1); + TestLine(1, 0, 20, 10, "line-file", 61661044); +} + +// Unfortunately, neither the DWARF parser's handler interface nor the +// DIEHandler interface is capable of expressing a function that abuts +// the end of the address space: the high_pc value looks like zero. + +TEST_F(FuncLinePairing, LineAtEndOfAddressSpace) { + PushLine(0xfffffffffffffff0ULL, 16, "line-file", 63351048); + EXPECT_CALL(reporter_, UncoveredLine(_)).WillOnce(Return()); + + StartCU(); + DefineFunction(&root_handler_, "function1", 0xfffffffffffffff0ULL, 6); + DefineFunction(&root_handler_, "function2", 0xfffffffffffffffaULL, 5); + root_handler_.Finish(); + + TestFunctionCount(2); + TestFunction(0, "function1", 0xfffffffffffffff0ULL, 6); + TestLineCount(0, 1); + TestLine(0, 0, 0xfffffffffffffff0ULL, 6, "line-file", 63351048); + TestFunction(1, "function2", 0xfffffffffffffffaULL, 5); + TestLineCount(1, 1); + TestLine(1, 0, 0xfffffffffffffffaULL, 5, "line-file", 63351048); +} + +// A function with more than one uncovered area should only be warned +// about once. +TEST_F(FuncLinePairing, WarnOnceFunc) { + PushLine(20, 1, "line-file-2", 262951329); + PushLine(11, 1, "line-file-1", 219964021); + EXPECT_CALL(reporter_, UncoveredFunction(_)).WillOnce(Return()); + + StartCU(); + DefineFunction(&root_handler_, "function", 10, 11); + root_handler_.Finish(); + + TestFunctionCount(1); + TestFunction(0, "function", 10, 11); + TestLineCount(0, 2); + TestLine(0, 0, 11, 1, "line-file-1", 219964021); + TestLine(0, 1, 20, 1, "line-file-2", 262951329); +} + +// A line with more than one uncovered area should only be warned +// about once. +TEST_F(FuncLinePairing, WarnOnceLine) { + PushLine(10, 20, "filename1", 118581871); + EXPECT_CALL(reporter_, UncoveredLine(_)).WillOnce(Return()); + + StartCU(); + DefineFunction(&root_handler_, "function1", 11, 1); + DefineFunction(&root_handler_, "function2", 13, 1); + root_handler_.Finish(); + + TestFunctionCount(2); + TestFunction(0, "function1", 11, 1); + TestLineCount(0, 1); + TestLine(0, 0, 11, 1, "filename1", 118581871); + TestFunction(1, "function2", 13, 1); + TestLineCount(1, 1); + TestLine(1, 0, 13, 1, "filename1", 118581871); +} + +class CXXQualifiedNames: public CUFixtureBase, + public TestWithParam { }; + +INSTANTIATE_TEST_CASE_P(VersusEnclosures, CXXQualifiedNames, + Values(dwarf2reader::DW_TAG_class_type, + dwarf2reader::DW_TAG_structure_type, + dwarf2reader::DW_TAG_union_type, + dwarf2reader::DW_TAG_namespace)); + +TEST_P(CXXQualifiedNames, TwoFunctions) { + DwarfTag tag = GetParam(); + + SetLanguage(dwarf2reader::DW_LANG_C_plus_plus); + PushLine(10, 1, "filename1", 69819327); + PushLine(20, 1, "filename2", 95115701); + + StartCU(); + DIEHandler *enclosure_handler = StartNamedDIE(&root_handler_, tag, + "Enclosure"); + EXPECT_TRUE(enclosure_handler != NULL); + DefineFunction(enclosure_handler, "func_B", 10, 1); + DefineFunction(enclosure_handler, "func_C", 20, 1); + enclosure_handler->Finish(); + delete enclosure_handler; + root_handler_.Finish(); + + TestFunctionCount(2); + TestFunction(0, "Enclosure::func_B", 10, 1); + TestFunction(1, "Enclosure::func_C", 20, 1); +} + +TEST_P(CXXQualifiedNames, FuncInEnclosureInNamespace) { + DwarfTag tag = GetParam(); + + SetLanguage(dwarf2reader::DW_LANG_C_plus_plus); + PushLine(10, 1, "line-file", 69819327); + + StartCU(); + DIEHandler *namespace_handler + = StartNamedDIE(&root_handler_, dwarf2reader::DW_TAG_namespace, + "Namespace"); + EXPECT_TRUE(namespace_handler != NULL); + DIEHandler *enclosure_handler = StartNamedDIE(namespace_handler, tag, + "Enclosure"); + EXPECT_TRUE(enclosure_handler != NULL); + DefineFunction(enclosure_handler, "function", 10, 1); + enclosure_handler->Finish(); + delete enclosure_handler; + namespace_handler->Finish(); + delete namespace_handler; + root_handler_.Finish(); + + TestFunctionCount(1); + TestFunction(0, "Namespace::Enclosure::function", 10, 1); +} + +TEST_F(CXXQualifiedNames, FunctionInClassInStructInNamespace) { + SetLanguage(dwarf2reader::DW_LANG_C_plus_plus); + PushLine(10, 1, "filename1", 69819327); + + StartCU(); + DIEHandler *namespace_handler + = StartNamedDIE(&root_handler_, dwarf2reader::DW_TAG_namespace, + "namespace_A"); + EXPECT_TRUE(namespace_handler != NULL); + DIEHandler *struct_handler + = StartNamedDIE(namespace_handler, dwarf2reader::DW_TAG_structure_type, + "struct_B"); + EXPECT_TRUE(struct_handler != NULL); + DIEHandler *class_handler + = StartNamedDIE(struct_handler, dwarf2reader::DW_TAG_class_type, + "class_C"); + DefineFunction(class_handler, "function_D", 10, 1); + class_handler->Finish(); + delete class_handler; + struct_handler->Finish(); + delete struct_handler; + namespace_handler->Finish(); + delete namespace_handler; + root_handler_.Finish(); + + TestFunctionCount(1); + TestFunction(0, "namespace_A::struct_B::class_C::function_D", 10, 1); +} + +struct LanguageAndQualifiedName { + dwarf2reader::DwarfLanguage language; + const char *name; +}; + +const LanguageAndQualifiedName LanguageAndQualifiedNameCases[] = { + { dwarf2reader::DW_LANG_none, "class_A::function_B" }, + { dwarf2reader::DW_LANG_C, "class_A::function_B" }, + { dwarf2reader::DW_LANG_C89, "class_A::function_B" }, + { dwarf2reader::DW_LANG_C99, "class_A::function_B" }, + { dwarf2reader::DW_LANG_C_plus_plus, "class_A::function_B" }, + { dwarf2reader::DW_LANG_Java, "class_A.function_B" }, + { dwarf2reader::DW_LANG_Cobol74, "class_A::function_B" }, + { dwarf2reader::DW_LANG_Mips_Assembler, NULL } +}; + +class QualifiedForLanguage: + public CUFixtureBase, + public TestWithParam { }; + +INSTANTIATE_TEST_CASE_P(LanguageAndQualifiedName, QualifiedForLanguage, + ValuesIn(LanguageAndQualifiedNameCases)); + +TEST_P(QualifiedForLanguage, MemberFunction) { + const LanguageAndQualifiedName ¶m = GetParam(); + + PushLine(10, 1, "line-file", 212966758); + SetLanguage(param.language); + + StartCU(); + DIEHandler *class_handler + = StartNamedDIE(&root_handler_, dwarf2reader::DW_TAG_class_type, + "class_A"); + DefineFunction(class_handler, "function_B", 10, 1); + class_handler->Finish(); + delete class_handler; + root_handler_.Finish(); + + if (param.name) { + TestFunctionCount(1); + TestFunction(0, param.name, 10, 1); + } else { + TestFunctionCount(0); + } +} + +TEST_P(QualifiedForLanguage, MemberFunctionSignedLanguage) { + const LanguageAndQualifiedName ¶m = GetParam(); + + PushLine(10, 1, "line-file", 212966758); + SetLanguage(param.language); + SetLanguageSigned(true); + + StartCU(); + DIEHandler *class_handler + = StartNamedDIE(&root_handler_, dwarf2reader::DW_TAG_class_type, + "class_A"); + DefineFunction(class_handler, "function_B", 10, 1); + class_handler->Finish(); + delete class_handler; + root_handler_.Finish(); + + if (param.name) { + TestFunctionCount(1); + TestFunction(0, param.name, 10, 1); + } else { + TestFunctionCount(0); + } +} + +class Specifications: public CUFixtureBase, public Test { }; + +TEST_F(Specifications, Function) { + PushLine(0x93cd3dfc1aa10097ULL, 0x0397d47a0b4ca0d4ULL, "line-file", 54883661); + + StartCU(); + DeclarationDIE(&root_handler_, 0xcd3c51b946fb1eeeLL, + dwarf2reader::DW_TAG_subprogram, "declaration-name"); + DefinitionDIE(&root_handler_, dwarf2reader::DW_TAG_subprogram, + 0xcd3c51b946fb1eeeLL, "", + 0x93cd3dfc1aa10097ULL, 0x0397d47a0b4ca0d4ULL); + root_handler_.Finish(); + + TestFunctionCount(1); + TestFunction(0, "declaration-name", + 0x93cd3dfc1aa10097ULL, 0x0397d47a0b4ca0d4ULL); +} + +TEST_F(Specifications, MemberFunction) { + PushLine(0x3341a248634e7170ULL, 0x5f6938ee5553b953ULL, "line-file", 18116691); + + StartCU(); + DIEHandler *class_handler + = StartNamedDIE(&root_handler_, dwarf2reader::DW_TAG_class_type, "class_A"); + DeclarationDIE(class_handler, 0x7d83028c431406e8ULL, + dwarf2reader::DW_TAG_subprogram, "declaration-name"); + class_handler->Finish(); + delete class_handler; + DefinitionDIE(&root_handler_, dwarf2reader::DW_TAG_subprogram, + 0x7d83028c431406e8ULL, "", + 0x3341a248634e7170ULL, 0x5f6938ee5553b953ULL); + root_handler_.Finish(); + + TestFunctionCount(1); + TestFunction(0, "class_A::declaration-name", + 0x3341a248634e7170ULL, 0x5f6938ee5553b953ULL); +} + +// This case should gather the name from both the definition and the +// declaration's parent. +TEST_F(Specifications, FunctionDeclarationParent) { + PushLine(0x463c9ddf405be227ULL, 0x6a47774af5049680ULL, "line-file", 70254922); + + StartCU(); + { + DIEHandler *class_handler + = StartNamedDIE(&root_handler_, dwarf2reader::DW_TAG_class_type, + "class_A"); + ASSERT_TRUE(class_handler != NULL); + DeclarationDIE(class_handler, 0x0e0e877c8404544aULL, + dwarf2reader::DW_TAG_subprogram, "declaration-name"); + class_handler->Finish(); + delete class_handler; + } + + DefinitionDIE(&root_handler_, dwarf2reader::DW_TAG_subprogram, + 0x0e0e877c8404544aULL, "definition-name", + 0x463c9ddf405be227ULL, 0x6a47774af5049680ULL); + + root_handler_.Finish(); + + TestFunctionCount(1); + TestFunction(0, "class_A::definition-name", + 0x463c9ddf405be227ULL, 0x6a47774af5049680ULL); +} + +// Named scopes should also gather enclosing name components from +// their declarations. +TEST_F(Specifications, NamedScopeDeclarationParent) { + PushLine(0x5d13433d0df13d00ULL, 0x48ebebe5ade2cab4ULL, "line-file", 77392604); + + StartCU(); + { + DIEHandler *space_handler + = StartNamedDIE(&root_handler_, dwarf2reader::DW_TAG_namespace, + "space_A"); + ASSERT_TRUE(space_handler != NULL); + DeclarationDIE(space_handler, 0x419bb1d12f9a73a2ULL, + dwarf2reader::DW_TAG_class_type, "class-declaration-name"); + space_handler->Finish(); + delete space_handler; + } + + { + DIEHandler *class_handler + = StartSpecifiedDIE(&root_handler_, dwarf2reader::DW_TAG_class_type, + 0x419bb1d12f9a73a2ULL, "class-definition-name"); + ASSERT_TRUE(class_handler != NULL); + DefineFunction(class_handler, "function", + 0x5d13433d0df13d00ULL, 0x48ebebe5ade2cab4ULL); + class_handler->Finish(); + delete class_handler; + } + + root_handler_.Finish(); + + TestFunctionCount(1); + TestFunction(0, "space_A::class-definition-name::function", + 0x5d13433d0df13d00ULL, 0x48ebebe5ade2cab4ULL); +} + +// Check name construction for a long chain containing each combination of: +// - struct, union, class, namespace +// - direct and definition +TEST_F(Specifications, LongChain) { + PushLine(0x5a0dd6bb85db754cULL, 0x3bccb213d08c7fd3ULL, "line-file", 21192926); + SetLanguage(dwarf2reader::DW_LANG_C_plus_plus); + + StartCU(); + // The structure we're building here is: + // space_A full definition + // space_B declaration + // space_B definition + // struct_C full definition + // struct_D declaration + // struct_D definition + // union_E full definition + // union_F declaration + // union_F definition + // class_G full definition + // class_H declaration + // class_H definition + // func_I declaration + // func_I definition + // + // So: + // - space_A, struct_C, union_E, and class_G don't use specifications; + // - space_B, struct_D, union_F, and class_H do. + // - func_I uses a specification. + // + // The full name for func_I is thus: + // + // space_A::space_B::struct_C::struct_D::union_E::union_F:: + // class_G::class_H::func_I + { + DIEHandler *space_A_handler + = StartNamedDIE(&root_handler_, dwarf2reader::DW_TAG_namespace, + "space_A"); + DeclarationDIE(space_A_handler, 0x2e111126496596e2ULL, + dwarf2reader::DW_TAG_namespace, "space_B"); + space_A_handler->Finish(); + delete space_A_handler; + } + + { + DIEHandler *space_B_handler + = StartSpecifiedDIE(&root_handler_, dwarf2reader::DW_TAG_namespace, + 0x2e111126496596e2ULL); + DIEHandler *struct_C_handler + = StartNamedDIE(space_B_handler, dwarf2reader::DW_TAG_structure_type, + "struct_C"); + DeclarationDIE(struct_C_handler, 0x20cd423bf2a25a4cULL, + dwarf2reader::DW_TAG_structure_type, "struct_D"); + struct_C_handler->Finish(); + delete struct_C_handler; + space_B_handler->Finish(); + delete space_B_handler; + } + + { + DIEHandler *struct_D_handler + = StartSpecifiedDIE(&root_handler_, dwarf2reader::DW_TAG_structure_type, + 0x20cd423bf2a25a4cULL); + DIEHandler *union_E_handler + = StartNamedDIE(struct_D_handler, dwarf2reader::DW_TAG_union_type, + "union_E"); + DeclarationDIE(union_E_handler, 0xe25c84805aa58c32ULL, + dwarf2reader::DW_TAG_union_type, "union_F"); + union_E_handler->Finish(); + delete union_E_handler; + struct_D_handler->Finish(); + delete struct_D_handler; + } + + { + DIEHandler *union_F_handler + = StartSpecifiedDIE(&root_handler_, dwarf2reader::DW_TAG_union_type, + 0xe25c84805aa58c32ULL); + DIEHandler *class_G_handler + = StartNamedDIE(union_F_handler, dwarf2reader::DW_TAG_class_type, + "class_G"); + DeclarationDIE(class_G_handler, 0xb70d960dcc173b6eULL, + dwarf2reader::DW_TAG_class_type, "class_H"); + class_G_handler->Finish(); + delete class_G_handler; + union_F_handler->Finish(); + delete union_F_handler; + } + + { + DIEHandler *class_H_handler + = StartSpecifiedDIE(&root_handler_, dwarf2reader::DW_TAG_class_type, + 0xb70d960dcc173b6eULL); + DeclarationDIE(class_H_handler, 0x27ff829e3bf69f37ULL, + dwarf2reader::DW_TAG_subprogram, "func_I"); + class_H_handler->Finish(); + delete class_H_handler; + } + + DefinitionDIE(&root_handler_, dwarf2reader::DW_TAG_subprogram, + 0x27ff829e3bf69f37ULL, "", + 0x5a0dd6bb85db754cULL, 0x3bccb213d08c7fd3ULL); + root_handler_.Finish(); + + TestFunctionCount(1); + TestFunction(0, "space_A::space_B::struct_C::struct_D::union_E::union_F" + "::class_G::class_H::func_I", + 0x5a0dd6bb85db754cULL, 0x3bccb213d08c7fd3ULL); +} + +TEST_F(Specifications, InterCU) { + Module m("module-name", "module-os", "module-arch", "module-id"); + DwarfCUToModule::FileContext fc("dwarf-filename", &m); + EXPECT_CALL(reporter_, UncoveredFunction(_)).WillOnce(Return()); + MockLineToModuleFunctor lr; + EXPECT_CALL(lr, mock_apply(_,_,_,_)).Times(0); + dwarf2reader::AttributeList no_attrs; + + // Kludge: satisfy reporter_'s expectation. + reporter_.SetCUName("compilation-unit-name"); + + // First CU. Declares class_A. + { + DwarfCUToModule root1_handler(&fc, &lr, &reporter_); + ASSERT_TRUE(root1_handler.StartCompilationUnit(0, 1, 2, 3, 3)); + dwarf2reader::AttributeList attrs; + PushBackStrangeAttributes(&attrs); + ASSERT_TRUE(root1_handler.StartRootDIE(1, dwarf2reader::DW_TAG_compile_unit, + attrs)); + ProcessStrangeAttributes(&root1_handler); + ASSERT_TRUE(root1_handler.EndAttributes()); + DeclarationDIE(&root1_handler, 0xb8fbfdd5f0b26fceULL, + dwarf2reader::DW_TAG_class_type, "class_A"); + root1_handler.Finish(); + } + + // Second CU. Defines class_A, declares member_func_B. + { + DwarfCUToModule root2_handler(&fc, &lr, &reporter_); + ASSERT_TRUE(root2_handler.StartCompilationUnit(0, 1, 2, 3, 3)); + ASSERT_TRUE(root2_handler.StartRootDIE(1, dwarf2reader::DW_TAG_compile_unit, + no_attrs)); + ASSERT_TRUE(root2_handler.EndAttributes()); + DIEHandler *class_A_handler + = StartSpecifiedDIE(&root2_handler, dwarf2reader::DW_TAG_class_type, + 0xb8fbfdd5f0b26fceULL); + DeclarationDIE(class_A_handler, 0xb01fef8b380bd1a2ULL, + dwarf2reader::DW_TAG_subprogram, "member_func_B"); + class_A_handler->Finish(); + delete class_A_handler; + root2_handler.Finish(); + } + + // Third CU. Defines member_func_B. + { + DwarfCUToModule root3_handler(&fc, &lr, &reporter_); + ASSERT_TRUE(root3_handler.StartCompilationUnit(0, 1, 2, 3, 3)); + ASSERT_TRUE(root3_handler.StartRootDIE(1, dwarf2reader::DW_TAG_compile_unit, + no_attrs)); + ASSERT_TRUE(root3_handler.EndAttributes()); + DefinitionDIE(&root3_handler, dwarf2reader::DW_TAG_subprogram, + 0xb01fef8b380bd1a2ULL, "", + 0x2618f00a1a711e53ULL, 0x4fd94b76d7c2caf5ULL); + root3_handler.Finish(); + } + + vector functions; + m.GetFunctions(&functions, functions.end()); + EXPECT_EQ(1U, functions.size()); + EXPECT_STREQ("class_A::member_func_B", functions[0]->name_.c_str()); +} + +TEST_F(Specifications, BadOffset) { + PushLine(0xa0277efd7ce83771ULL, 0x149554a184c730c1ULL, "line-file", 56636272); + EXPECT_CALL(reporter_, UnknownSpecification(_, 0x2be953efa6f9a996ULL)) + .WillOnce(Return()); + + StartCU(); + DeclarationDIE(&root_handler_, 0xefd7f7752c27b7e4ULL, + dwarf2reader::DW_TAG_subprogram, "function"); + DefinitionDIE(&root_handler_, dwarf2reader::DW_TAG_subprogram, + 0x2be953efa6f9a996ULL, "", + 0xa0277efd7ce83771ULL, 0x149554a184c730c1ULL); + root_handler_.Finish(); +} + +TEST_F(Specifications, FunctionDefinitionHasOwnName) { + PushLine(0xced50b3eea81022cULL, 0x08dd4d301cc7a7d2ULL, "line-file", 56792403); + + StartCU(); + DeclarationDIE(&root_handler_, 0xc34ff4786cae78bdULL, + dwarf2reader::DW_TAG_subprogram, "declaration-name"); + DefinitionDIE(&root_handler_, dwarf2reader::DW_TAG_subprogram, + 0xc34ff4786cae78bdULL, "definition-name", + 0xced50b3eea81022cULL, 0x08dd4d301cc7a7d2ULL); + root_handler_.Finish(); + + TestFunctionCount(1); + TestFunction(0, "definition-name", + 0xced50b3eea81022cULL, 0x08dd4d301cc7a7d2ULL); +} + +TEST_F(Specifications, ClassDefinitionHasOwnName) { + PushLine(0x1d0f5e0f6ce309bdULL, 0x654e1852ec3599e7ULL, "line-file", 57119241); + + StartCU(); + DeclarationDIE(&root_handler_, 0xd0fe467ec2f1a58cULL, + dwarf2reader::DW_TAG_class_type, "class-declaration-name"); + + dwarf2reader::DIEHandler *class_definition + = StartSpecifiedDIE(&root_handler_, dwarf2reader::DW_TAG_class_type, + 0xd0fe467ec2f1a58cULL, "class-definition-name"); + ASSERT_TRUE(class_definition); + DeclarationDIE(class_definition, 0x6d028229c15623dbULL, + dwarf2reader::DW_TAG_subprogram, + "function-declaration-name"); + class_definition->Finish(); + delete class_definition; + + DefinitionDIE(&root_handler_, dwarf2reader::DW_TAG_subprogram, + 0x6d028229c15623dbULL, "function-definition-name", + 0x1d0f5e0f6ce309bdULL, 0x654e1852ec3599e7ULL); + + root_handler_.Finish(); + + TestFunctionCount(1); + TestFunction(0, "class-definition-name::function-definition-name", + 0x1d0f5e0f6ce309bdULL, 0x654e1852ec3599e7ULL); +} + +// DIEs that cite a specification should prefer the specification's +// parents over their own when choosing qualified names. In this test, +// we take the name from our definition but the enclosing scope name +// from our declaration. I don't see why they'd ever be different, but +// we want to verify what DwarfCUToModule is looking at. +TEST_F(Specifications, PreferSpecificationParents) { + PushLine(0xbbd9d54dce3b95b7ULL, 0x39188b7b52b0899fULL, "line-file", 79488694); + + StartCU(); + { + dwarf2reader::DIEHandler *declaration_class_handler + = StartNamedDIE(&root_handler_, dwarf2reader::DW_TAG_class_type, "declaration-class"); + DeclarationDIE(declaration_class_handler, 0x9ddb35517455ef7aULL, + dwarf2reader::DW_TAG_subprogram, "function-declaration"); + declaration_class_handler->Finish(); + delete declaration_class_handler; + } + { + dwarf2reader::DIEHandler *definition_class_handler + = StartNamedDIE(&root_handler_, dwarf2reader::DW_TAG_class_type, + "definition-class"); + DefinitionDIE(definition_class_handler, dwarf2reader::DW_TAG_subprogram, + 0x9ddb35517455ef7aULL, "function-definition", + 0xbbd9d54dce3b95b7ULL, 0x39188b7b52b0899fULL); + definition_class_handler->Finish(); + delete definition_class_handler; + } + root_handler_.Finish(); + + TestFunctionCount(1); + TestFunction(0, "declaration-class::function-definition", + 0xbbd9d54dce3b95b7ULL, 0x39188b7b52b0899fULL); +} + +class Errors: public CUFixtureBase, public Test { }; + +TEST_F(Errors, BadStmtList) { + EXPECT_CALL(reporter_, BadLineInfoOffset(dummy_line_size_ + 10)).Times(1); + + ASSERT_TRUE(root_handler_ + .StartCompilationUnit(0xc591d5b037543d7cULL, 0x11, 0xcd, + 0x2d7d19546cf6590cULL, 3)); + dwarf2reader::AttributeList attrs; + attrs.push_back(make_pair(dwarf2reader::DW_AT_name, + dwarf2reader::DW_FORM_strp)); + attrs.push_back(make_pair(dwarf2reader::DW_AT_stmt_list, + dwarf2reader::DW_FORM_ref4)); + ASSERT_TRUE(root_handler_.StartRootDIE(0xae789dc102cfca54ULL, + dwarf2reader::DW_TAG_compile_unit, + attrs)); + root_handler_.ProcessAttributeString(dwarf2reader::DW_AT_name, + dwarf2reader::DW_FORM_strp, + "compilation-unit-name"); + root_handler_.ProcessAttributeUnsigned(dwarf2reader::DW_AT_stmt_list, + dwarf2reader::DW_FORM_ref4, + dummy_line_size_ + 10); + root_handler_.EndAttributes(); + root_handler_.Finish(); +} + +TEST_F(Errors, NoLineSection) { + EXPECT_CALL(reporter_, MissingSection(".debug_line")).Times(1); + PushLine(0x88507fb678052611ULL, 0x42c8e9de6bbaa0faULL, "line-file", 64472290); + // Delete the entry for .debug_line added by the fixture class's constructor. + file_context_.section_map.clear(); + + StartCU(); + root_handler_.Finish(); +} + +TEST_F(Errors, BadDwarfVersion1) { + // Kludge: satisfy reporter_'s expectation. + reporter_.SetCUName("compilation-unit-name"); + + ASSERT_FALSE(root_handler_ + .StartCompilationUnit(0xadf6e0eb71e2b0d9ULL, 0x4d, 0x90, + 0xc9de224ccb99ac3eULL, 1)); +} + +TEST_F(Errors, GoodDwarfVersion2) { + // Kludge: satisfy reporter_'s expectation. + reporter_.SetCUName("compilation-unit-name"); + + ASSERT_TRUE(root_handler_ + .StartCompilationUnit(0xadf6e0eb71e2b0d9ULL, 0x4d, 0x90, + 0xc9de224ccb99ac3eULL, 2)); +} + +TEST_F(Errors, GoodDwarfVersion3) { + // Kludge: satisfy reporter_'s expectation. + reporter_.SetCUName("compilation-unit-name"); + + ASSERT_TRUE(root_handler_ + .StartCompilationUnit(0xadf6e0eb71e2b0d9ULL, 0x4d, 0x90, + 0xc9de224ccb99ac3eULL, 3)); +} + +TEST_F(Errors, BadCURootDIETag) { + // Kludge: satisfy reporter_'s expectation. + reporter_.SetCUName("compilation-unit-name"); + + ASSERT_TRUE(root_handler_ + .StartCompilationUnit(0xadf6e0eb71e2b0d9ULL, 0x4d, 0x90, + 0xc9de224ccb99ac3eULL, 3)); + + dwarf2reader::AttributeList no_attrs; + ASSERT_FALSE(root_handler_.StartRootDIE(0x02e56bfbda9e7337ULL, + dwarf2reader::DW_TAG_subprogram, + no_attrs)); +} + +// Would be nice to also test: +// - overlapping lines, functions diff --git a/src/common/linux/dwarf_line_to_module.cc b/src/common/linux/dwarf_line_to_module.cc new file mode 100644 index 00000000..745d324c --- /dev/null +++ b/src/common/linux/dwarf_line_to_module.cc @@ -0,0 +1,119 @@ +// Copyright (c) 2009, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +#include "common/linux/dwarf_line_to_module.h" + +// Trying to support Windows paths in a reasonable way adds a lot of +// variations to test; it would be better to just put off dealing with +// it until we actually have to deal with DWARF on Windows. + +// Return true if PATH is an absolute path, false if it is relative. +static bool PathIsAbsolute(const string &path) { + return (path.size() >= 1 && path[0] == '/'); +} + +// If PATH is an absolute path, return PATH. If PATH is a relative path, +// treat it as relative to BASE and return the combined path. +static string ExpandPath(const string &path, const string &base) { + if (PathIsAbsolute(path)) + return path; + return base + "/" + path; +} + +namespace google_breakpad { + +void DwarfLineToModule::DefineDir(const string &name, uint32 dir_num) { + // Directory number zero is reserved to mean the compilation + // directory. Silently ignore attempts to redefine it. + if (dir_num != 0) + directories_[dir_num] = name; +} + +void DwarfLineToModule::DefineFile(const string &name, int32 file_num, + uint32 dir_num, uint64 mod_time, + uint64 length) { + if (file_num == -1) + file_num = ++highest_file_number_; + else if (file_num > highest_file_number_) + highest_file_number_ = file_num; + + std::string full_name; + if (dir_num != 0) { + DirectoryTable::const_iterator directory_it = directories_.find(dir_num); + if (directory_it != directories_.end()) { + full_name = ExpandPath(name, directory_it->second); + } else { + if (!warned_bad_directory_number_) { + fprintf(stderr, "warning: DWARF line number data refers to undefined" + " directory numbers\n"); + warned_bad_directory_number_ = true; + } + full_name = name; // just treat name as relative + } + } else { + // Directory number zero is the compilation directory; we just report + // relative paths in that case. + full_name = name; + } + + // Find a Module::File object of the given name, and add it to the + // file table. + files_[file_num] = module_->FindFile(full_name); +} + +void DwarfLineToModule::AddLine(uint64 address, uint64 length, + uint32 file_num, uint32 line_num, + uint32 column_num) { + if (length == 0) + return; + + // Clip lines not to extend beyond the end of the address space. + if (address + length < address) + length = -address; + + // Find the source file being referred to. + Module::File *file = files_[file_num]; + if (!file) { + if (!warned_bad_file_number_) { + fprintf(stderr, "warning: DWARF line number data refers to " + "undefined file numbers\n"); + warned_bad_file_number_ = true; + } + return; + } + Module::Line line; + line.address_ = address; + // We set the size when we get the next line or the EndSequence call. + line.size_ = length; + line.file_ = file; + line.number_ = line_num; + lines_->push_back(line); +} + +} // namespace google_breakpad diff --git a/src/common/linux/dwarf_line_to_module.h b/src/common/linux/dwarf_line_to_module.h new file mode 100644 index 00000000..f27036ed --- /dev/null +++ b/src/common/linux/dwarf_line_to_module.h @@ -0,0 +1,111 @@ +// -*- mode: c++ -*- + +// Copyright (c) 2009, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +#ifndef COMMON_LINUX_DWARF_LINE_TO_MODULE_H +#define COMMON_LINUX_DWARF_LINE_TO_MODULE_H + +#include "common/linux/module.h" +#include "common/dwarf/dwarf2reader.h" + +namespace google_breakpad { + +// A class for producing a vector of google_breakpad::Module::Line +// instances from parsed DWARF line number data. +// +// An instance of this class can be provided as a handler to a +// dwarf2reader::LineInfo DWARF line number information parser. The +// handler accepts source location information from the parser and +// uses it to produce a vector of google_breakpad::Module::Line +// objects, referring to google_breakpad::Module::File objects added +// to a particular google_breakpad::Module. +class DwarfLineToModule: public dwarf2reader::LineInfoHandler { + public: + // As the DWARF line info parser passes us line records, add source + // files to MODULE, and add all lines to the end of LINES. LINES + // need not be empty. If the parser hands us a zero-length line, we + // omit it. If the parser hands us a line that extends beyond the + // end of the address space, we clip it. It's up to our client to + // sort out which lines belong to which functions; we don't add them + // to any particular function in MODULE ourselves. + DwarfLineToModule(Module *module, vector *lines) + : module_(module), + lines_(lines), + highest_file_number_(-1), + warned_bad_file_number_(false), + warned_bad_directory_number_(false) { } + + ~DwarfLineToModule() { } + + void DefineDir(const std::string &name, uint32 dir_num); + void DefineFile(const std::string &name, int32 file_num, + uint32 dir_num, uint64 mod_time, + uint64 length); + void AddLine(uint64 address, uint64 length, + uint32 file_num, uint32 line_num, uint32 column_num); + + private: + + typedef std::map DirectoryTable; + typedef std::map FileTable; + + // The module we're contributing debugging info to. Owned by our + // client. + Module *module_; + + // The vector of lines we're accumulating. Owned by our client. + // + // In a Module, as in a breakpad symbol file, lines belong to + // specific functions, but DWARF simply assigns lines to addresses; + // one must infer the line/function relationship using the + // functions' beginning and ending addresses. So we can't add these + // to the appropriate function from module_ until we've read the + // function info as well. Instead, we accumulate lines here, and let + // whoever constructed this sort it all out. + vector *lines_; + + // A table mapping directory numbers to paths. + DirectoryTable directories_; + + // A table mapping file numbers to Module::File pointers. + FileTable files_; + + // The highest file number we've seen so far, or -1 if we've seen + // none. Used for dynamically defined file numbers. + int32 highest_file_number_; + + // True if we've warned about: + bool warned_bad_file_number_; // bad file numbers + bool warned_bad_directory_number_; // bad directory numbers +}; + +} // namespace google_breakpad + +#endif // COMMON_LINUX_DWARF_LINE_TO_MODULE_H diff --git a/src/common/linux/dwarf_line_to_module_unittest.cc b/src/common/linux/dwarf_line_to_module_unittest.cc new file mode 100644 index 00000000..ad0bcc8c --- /dev/null +++ b/src/common/linux/dwarf_line_to_module_unittest.cc @@ -0,0 +1,265 @@ +// Copyright (c) 2009, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +// dwarf_line_to_module.cc: Unit tests for google_breakpad::DwarfLineToModule. + +#include "breakpad_googletest_includes.h" +#include "common/linux/dwarf_line_to_module.h" + +using google_breakpad::DwarfLineToModule; +using google_breakpad::Module; +using google_breakpad::Module; + +TEST(Simple, One) { + Module m("name", "os", "architecture", "id"); + vector lines; + DwarfLineToModule h(&m, &lines); + + h.DefineFile("file1", 0x30bf0f27, 0, 0, 0); + h.AddLine(0x6fd126fbf74f2680LL, 0x63c9a14cf556712bLL, 0x30bf0f27, + 0x4c090cbf, 0x1cf9fe0d); + + vector files; + m.GetFiles(&files); + EXPECT_EQ(1U, files.size()); + EXPECT_STREQ("file1", files[0]->name_.c_str()); + + EXPECT_EQ(1U, lines.size()); + EXPECT_EQ(0x6fd126fbf74f2680ULL, lines[0].address_); + EXPECT_EQ(0x63c9a14cf556712bULL, lines[0].size_); + EXPECT_TRUE(lines[0].file_ == files[0]); + EXPECT_EQ(0x4c090cbf, lines[0].number_); +} + +TEST(Simple, Many) { + Module m("name", "os", "architecture", "id"); + vector lines; + DwarfLineToModule h(&m, &lines); + + h.DefineDir("directory1", 0x838299ab); + h.DefineDir("directory2", 0xf85de023); + h.DefineFile("file1", 0x2b80377a, 0x838299ab, 0, 0); + h.DefineFile("file1", 0x63beb4a4, 0xf85de023, 0, 0); + h.DefineFile("file2", 0x1d161d56, 0x838299ab, 0, 0); + h.DefineFile("file2", 0x1e7a667c, 0xf85de023, 0, 0); + h.AddLine(0x69900c5d553b7274ULL, 0x90fded183f0d0d3cULL, 0x2b80377a, + 0x15b0f0a9U, 0x3ff5abd6U); + h.AddLine(0x45811219a39b7101ULL, 0x25a5e6a924afc41fULL, 0x63beb4a4, + 0x4d259ce9U, 0x41c5ee32U); + h.AddLine(0xfa90514c1dc9704bULL, 0x0063efeabc02f313ULL, 0x1d161d56, + 0x1ee9fa4fU, 0xbf70e46aU); + h.AddLine(0x556b55fb6a647b10ULL, 0x3f3089ca2bfd80f5ULL, 0x1e7a667c, + 0x77fc280eU, 0x2c4a728cU); + h.DefineFile("file3", -1, 0, 0, 0); + h.AddLine(0xe2d72a37f8d9403aULL, 0x034dfab5b0d4d236ULL, 0x63beb4a5, + 0x75047044U, 0xb6a0016cU); + + vector files; + m.GetFiles(&files); + ASSERT_EQ(5U, files.size()); + EXPECT_STREQ("directory1/file1", files[0]->name_.c_str()); + EXPECT_STREQ("directory1/file2", files[1]->name_.c_str()); + EXPECT_STREQ("directory2/file1", files[2]->name_.c_str()); + EXPECT_STREQ("directory2/file2", files[3]->name_.c_str()); + EXPECT_STREQ("file3", files[4]->name_.c_str()); + + ASSERT_EQ(5U, lines.size()); + + EXPECT_EQ(0x69900c5d553b7274ULL, lines[0].address_); + EXPECT_EQ(0x90fded183f0d0d3cULL, lines[0].size_); + EXPECT_TRUE(lines[0].file_ == files[0]); + EXPECT_EQ(0x15b0f0a9, lines[0].number_); + + EXPECT_EQ(0x45811219a39b7101ULL, lines[1].address_); + EXPECT_EQ(0x25a5e6a924afc41fULL, lines[1].size_); + EXPECT_TRUE(lines[1].file_ == files[2]); + EXPECT_EQ(0x4d259ce9, lines[1].number_); + + EXPECT_EQ(0xfa90514c1dc9704bULL, lines[2].address_); + EXPECT_EQ(0x0063efeabc02f313ULL, lines[2].size_); + EXPECT_TRUE(lines[2].file_ == files[1]); + EXPECT_EQ(0x1ee9fa4f, lines[2].number_); + + EXPECT_EQ(0x556b55fb6a647b10ULL, lines[3].address_); + EXPECT_EQ(0x3f3089ca2bfd80f5ULL, lines[3].size_); + EXPECT_TRUE(lines[3].file_ == files[3]); + EXPECT_EQ(0x77fc280e, lines[3].number_); + + EXPECT_EQ(0xe2d72a37f8d9403aULL, lines[4].address_); + EXPECT_EQ(0x034dfab5b0d4d236ULL, lines[4].size_); + EXPECT_TRUE(lines[4].file_ == files[4]); + EXPECT_EQ(0x75047044, lines[4].number_); +} + +TEST(Filenames, Absolute) { + Module m("name", "os", "architecture", "id"); + vector lines; + DwarfLineToModule h(&m, &lines); + + h.DefineDir("directory1", 1); + h.DefineFile("/absolute", 1, 1, 0, 0); + + h.AddLine(1, 1, 1, 0, 0); + + vector files; + m.GetFiles(&files); + ASSERT_EQ(1U, files.size()); + EXPECT_STREQ("/absolute", files[0]->name_.c_str()); + ASSERT_EQ(1U, lines.size()); + EXPECT_TRUE(lines[0].file_ == files[0]); +} + +TEST(Filenames, Relative) { + Module m("name", "os", "architecture", "id"); + vector lines; + DwarfLineToModule h(&m, &lines); + + h.DefineDir("directory1", 1); + h.DefineFile("relative", 1, 1, 0, 0); + + h.AddLine(1, 1, 1, 0, 0); + + vector files; + m.GetFiles(&files); + ASSERT_EQ(1U, files.size()); + EXPECT_STREQ("directory1/relative", files[0]->name_.c_str()); + ASSERT_EQ(1U, lines.size()); + EXPECT_TRUE(lines[0].file_ == files[0]); +} + +TEST(Filenames, StrangeFile) { + Module m("name", "os", "architecture", "id"); + vector lines; + DwarfLineToModule h(&m, &lines); + + h.DefineDir("directory1", 1); + h.DefineFile("", 1, 1, 0, 0); + h.AddLine(1, 1, 1, 0, 0); + + ASSERT_EQ(1U, lines.size()); + EXPECT_STREQ("directory1/", lines[0].file_->name_.c_str()); +} + +TEST(Filenames, StrangeDirectory) { + Module m("name", "os", "architecture", "id"); + vector lines; + DwarfLineToModule h(&m, &lines); + + h.DefineDir("", 1); + h.DefineFile("file1", 1, 1, 0, 0); + h.AddLine(1, 1, 1, 0, 0); + + ASSERT_EQ(1U, lines.size()); + EXPECT_STREQ("/file1", lines[0].file_->name_.c_str()); +} + +TEST(Filenames, StrangeDirectoryAndFile) { + Module m("name", "os", "architecture", "id"); + vector lines; + DwarfLineToModule h(&m, &lines); + + h.DefineDir("", 1); + h.DefineFile("", 1, 1, 0, 0); + h.AddLine(1, 1, 1, 0, 0); + + ASSERT_EQ(1U, lines.size()); + EXPECT_STREQ("/", lines[0].file_->name_.c_str()); +} + +// We should silently ignore attempts to define directory number zero, +// since that is always the compilation directory. +TEST(Errors, DirectoryZero) { + Module m("name", "os", "architecture", "id"); + vector lines; + DwarfLineToModule h(&m, &lines); + + h.DefineDir("directory0", 0); // should be ignored + h.DefineFile("relative", 1, 0, 0, 0); + + h.AddLine(1, 1, 1, 0, 0); + + ASSERT_EQ(1U, lines.size()); + EXPECT_STREQ("relative", lines[0].file_->name_.c_str()); +} + +// We should refuse to add lines with bogus file numbers. We should +// produce only one warning, however. +TEST(Errors, BadFileNumber) { + Module m("name", "os", "architecture", "id"); + vector lines; + DwarfLineToModule h(&m, &lines); + + h.DefineFile("relative", 1, 0, 0, 0); + h.AddLine(1, 1, 2, 0, 0); // bad file number + h.AddLine(2, 1, 2, 0, 0); // bad file number (no duplicate warning) + + EXPECT_EQ(0U, lines.size()); +} + +// We should treat files with bogus directory numbers as relative to +// the compilation unit. +TEST(Errors, BadDirectoryNumber) { + Module m("name", "os", "architecture", "id"); + vector lines; + DwarfLineToModule h(&m, &lines); + + h.DefineDir("directory1", 1); + h.DefineFile("baddirnumber1", 1, 2, 0, 0); // bad directory number + h.DefineFile("baddirnumber2", 2, 2, 0, 0); // bad dir number (no warning) + h.AddLine(1, 1, 1, 0, 0); + + ASSERT_EQ(1U, lines.size()); + EXPECT_STREQ("baddirnumber1", lines[0].file_->name_.c_str()); +} + +// We promise not to report empty lines. +TEST(Errors, EmptyLine) { + Module m("name", "os", "architecture", "id"); + vector lines; + DwarfLineToModule h(&m, &lines); + + h.DefineFile("filename1", 1, 0, 0, 0); + h.AddLine(1, 0, 1, 0, 0); + + ASSERT_EQ(0U, lines.size()); +} + +// We are supposed to clip lines that extend beyond the end of the +// address space. +TEST(Errors, BigLine) { + Module m("name", "os", "architecture", "id"); + vector lines; + DwarfLineToModule h(&m, &lines); + + h.DefineFile("filename1", 1, 0, 0, 0); + h.AddLine(0xffffffffffffffffULL, 2, 1, 0, 0); + + ASSERT_EQ(1U, lines.size()); + EXPECT_EQ(1U, lines[0].size_); +} diff --git a/src/common/linux/language.cc b/src/common/linux/language.cc new file mode 100644 index 00000000..dd9fb999 --- /dev/null +++ b/src/common/linux/language.cc @@ -0,0 +1,77 @@ +// Copyright (c) 2009, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +#include "common/linux/language.h" + +namespace google_breakpad { + +// C++ language-specific operations. +class CPPLanguage: public Language { + public: + string MakeQualifiedName(const string &parent_name, + const string &name) const { + if (parent_name.empty()) + return name; + else + return parent_name + "::" + name; + } +}; + +const CPPLanguage CPPLanguageSingleton; + +// Java language-specific operations. +class JavaLanguage: public Language { + public: + string MakeQualifiedName(const string &parent_name, + const string &name) const { + if (parent_name.empty()) + return name; + else + return parent_name + "." + name; + } +}; + +JavaLanguage JavaLanguageSingleton; + +// Assembler language-specific operations. +class AssemblerLanguage: public Language { + bool HasFunctions() const { return false; } + string MakeQualifiedName(const string &parent_name, + const string &name) const { + return name; + } +}; + +AssemblerLanguage AssemblerLanguageSingleton; + +const Language * const Language::CPlusPlus = &CPPLanguageSingleton; +const Language * const Language::Java = &JavaLanguageSingleton; +const Language * const Language::Assembler = &AssemblerLanguageSingleton; + +} // namespace google_breakpad diff --git a/src/common/linux/language.h b/src/common/linux/language.h new file mode 100644 index 00000000..8c2598f1 --- /dev/null +++ b/src/common/linux/language.h @@ -0,0 +1,81 @@ +// -*- mode: c++ -*- + +// Copyright (c) 2009, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +// language.h: defines google_breakpad::Language, providing +// language-specific operations for use by the dumper. + +#ifndef COMMON_LINUX_LANGUAGE_H__ +#define COMMON_LINUX_LANGUAGE_H__ + +#include + +namespace google_breakpad { + +using std::string; + +// An abstract base class for language-specific operations. We choose +// an instance of a subclass of this when we find the CU's language. +// This class's definitions are appropriate for CUs with no specified +// language. +class Language { + public: + // Return true if this language has functions to which we can assign + // line numbers. (Debugging info for assembly language, for example, + // can have source location information, but does not have functions + // recorded using DW_TAG_subprogram DIEs.) + virtual bool HasFunctions() const { return true; } + + // Construct a fully-qualified, language-appropriate form of NAME, + // given that PARENT_NAME is the name of the construct enclosing + // NAME. If PARENT_NAME is the empty string, then NAME is a + // top-level name. + // + // This API sort of assumes that a fully-qualified name is always + // some simple textual composition of the unqualified name and its + // parent's name, and that we don't need to know anything else about + // the parent or the child (say, their DIEs' tags) to do the job. + // This is true for the languages we support at the moment, and + // keeps things concrete. Perhaps a more refined operation would + // take into account the parent and child DIE types, allow languages + // to use their own data type for complex parent names, etc. But if + // C++ doesn't need all that, who would? + virtual string MakeQualifiedName (const string &parent_name, + const string &name) const = 0; + + // Instances for specific languages. + static const Language * const CPlusPlus, + * const Java, + * const Assembler; +}; + +} // namespace google_breakpad + +#endif // COMMON_LINUX_LANGUAGE_H__ diff --git a/src/common/linux/testdata/func-line-pairing.h b/src/common/linux/testdata/func-line-pairing.h new file mode 100644 index 00000000..05538f96 --- /dev/null +++ b/src/common/linux/testdata/func-line-pairing.h @@ -0,0 +1,676 @@ +// -*- mode: c++ -*- + +// Test data for pairing functions and lines. +// +// For a pair of functions that are adjacent (10,20),(20,25) and a +// pair that are not (10,15),(20,25), we include a test case for every +// possible arrangement of two lines relative to those functions. We +// include cases only for non-empty ranges, since empty functions and +// lines are dropped before we do any pairing. +// +// Each test case is represented by a macro call of the form: +// +// PAIRING(func1_start, func1_end, func2_start, func2_end, +// line1_start, line1_end, line2_start, line2_end, +// func1_num_lines, func2_num_lines, +// func1_line1_start, func1_line1_end, +// func1_line2_start, func1_line2_end, +// func2_line1_start, func2_line1_end, +// func2_line2_start, func2_line2_end, +// uncovered_funcs, uncovered_lines) +// +// where: +// - funcN_{start,end} is the range of the N'th function +// - lineN_{start,end} is the range of the N'th function +// - funcN_num_lines is the number of source lines that should be +// paired with the N'th function +// - funcN_lineM_{start,end} is the range of the M'th line +// paired with the N'th function, where 0,0 indicates that +// there should be no such line paired +// - uncovered_funcs is the number of functions with area that is +// uncovered by any line, and +// - uncovered_lines is the reverse. + +// func1 func2 line1 line2 num pairing1 pairing2 uncovered +PAIRING(10, 20, 20, 25, 6, 7, 7, 8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2) // #0 +PAIRING(10, 20, 20, 25, 6, 7, 7, 10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2) // #1 +PAIRING(10, 20, 20, 25, 6, 7, 7, 11, 1, 0, 10, 11, 0, 0, 0, 0, 0, 0, 2, 2) // #2 +PAIRING(10, 20, 20, 25, 6, 7, 7, 20, 1, 0, 10, 20, 0, 0, 0, 0, 0, 0, 1, 2) // #3 +PAIRING(10, 20, 20, 25, 6, 7, 7, 21, 1, 1, 10, 20, 0, 0, 20, 21, 0, 0, 1, 2) // #4 +PAIRING(10, 20, 20, 25, 6, 7, 7, 25, 1, 1, 10, 20, 0, 0, 20, 25, 0, 0, 0, 2) // #5 +PAIRING(10, 20, 20, 25, 6, 7, 7, 26, 1, 1, 10, 20, 0, 0, 20, 25, 0, 0, 0, 2) // #6 +PAIRING(10, 20, 20, 25, 6, 7, 8, 9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2) // #7 +PAIRING(10, 20, 20, 25, 6, 7, 8, 10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2) // #8 +PAIRING(10, 20, 20, 25, 6, 7, 8, 11, 1, 0, 10, 11, 0, 0, 0, 0, 0, 0, 2, 2) // #9 +PAIRING(10, 20, 20, 25, 6, 7, 8, 20, 1, 0, 10, 20, 0, 0, 0, 0, 0, 0, 1, 2) // #10 +PAIRING(10, 20, 20, 25, 6, 7, 8, 21, 1, 1, 10, 20, 0, 0, 20, 21, 0, 0, 1, 2) // #11 +PAIRING(10, 20, 20, 25, 6, 7, 8, 25, 1, 1, 10, 20, 0, 0, 20, 25, 0, 0, 0, 2) // #12 +PAIRING(10, 20, 20, 25, 6, 7, 8, 26, 1, 1, 10, 20, 0, 0, 20, 25, 0, 0, 0, 2) // #13 +PAIRING(10, 20, 20, 25, 6, 7, 10, 11, 1, 0, 10, 11, 0, 0, 0, 0, 0, 0, 2, 1) // #14 +PAIRING(10, 20, 20, 25, 6, 7, 10, 20, 1, 0, 10, 20, 0, 0, 0, 0, 0, 0, 1, 1) // #15 +PAIRING(10, 20, 20, 25, 6, 7, 10, 21, 1, 1, 10, 20, 0, 0, 20, 21, 0, 0, 1, 1) // #16 +PAIRING(10, 20, 20, 25, 6, 7, 10, 25, 1, 1, 10, 20, 0, 0, 20, 25, 0, 0, 0, 1) // #17 +PAIRING(10, 20, 20, 25, 6, 7, 10, 26, 1, 1, 10, 20, 0, 0, 20, 25, 0, 0, 0, 2) // #18 +PAIRING(10, 20, 20, 25, 6, 7, 11, 12, 1, 0, 11, 12, 0, 0, 0, 0, 0, 0, 2, 1) // #19 +PAIRING(10, 20, 20, 25, 6, 7, 11, 20, 1, 0, 11, 20, 0, 0, 0, 0, 0, 0, 2, 1) // #20 +PAIRING(10, 20, 20, 25, 6, 7, 11, 21, 1, 1, 11, 20, 0, 0, 20, 21, 0, 0, 2, 1) // #21 +PAIRING(10, 20, 20, 25, 6, 7, 11, 25, 1, 1, 11, 20, 0, 0, 20, 25, 0, 0, 1, 1) // #22 +PAIRING(10, 20, 20, 25, 6, 7, 11, 26, 1, 1, 11, 20, 0, 0, 20, 25, 0, 0, 1, 2) // #23 +PAIRING(10, 20, 20, 25, 6, 7, 20, 21, 0, 1, 0, 0, 0, 0, 20, 21, 0, 0, 2, 1) // #24 +PAIRING(10, 20, 20, 25, 6, 7, 20, 25, 0, 1, 0, 0, 0, 0, 20, 25, 0, 0, 1, 1) // #25 +PAIRING(10, 20, 20, 25, 6, 7, 20, 26, 0, 1, 0, 0, 0, 0, 20, 25, 0, 0, 1, 2) // #26 +PAIRING(10, 20, 20, 25, 6, 7, 21, 22, 0, 1, 0, 0, 0, 0, 21, 22, 0, 0, 2, 1) // #27 +PAIRING(10, 20, 20, 25, 6, 7, 21, 25, 0, 1, 0, 0, 0, 0, 21, 25, 0, 0, 2, 1) // #28 +PAIRING(10, 20, 20, 25, 6, 7, 21, 26, 0, 1, 0, 0, 0, 0, 21, 25, 0, 0, 2, 2) // #29 +PAIRING(10, 20, 20, 25, 6, 7, 25, 26, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2) // #30 +PAIRING(10, 20, 20, 25, 6, 7, 26, 27, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2) // #31 +PAIRING(10, 20, 20, 25, 6, 10, 10, 11, 1, 0, 10, 11, 0, 0, 0, 0, 0, 0, 2, 1) // #32 +PAIRING(10, 20, 20, 25, 6, 10, 10, 20, 1, 0, 10, 20, 0, 0, 0, 0, 0, 0, 1, 1) // #33 +PAIRING(10, 20, 20, 25, 6, 10, 10, 21, 1, 1, 10, 20, 0, 0, 20, 21, 0, 0, 1, 1) // #34 +PAIRING(10, 20, 20, 25, 6, 10, 10, 25, 1, 1, 10, 20, 0, 0, 20, 25, 0, 0, 0, 1) // #35 +PAIRING(10, 20, 20, 25, 6, 10, 10, 26, 1, 1, 10, 20, 0, 0, 20, 25, 0, 0, 0, 2) // #36 +PAIRING(10, 20, 20, 25, 6, 10, 11, 12, 1, 0, 11, 12, 0, 0, 0, 0, 0, 0, 2, 1) // #37 +PAIRING(10, 20, 20, 25, 6, 10, 11, 20, 1, 0, 11, 20, 0, 0, 0, 0, 0, 0, 2, 1) // #38 +PAIRING(10, 20, 20, 25, 6, 10, 11, 21, 1, 1, 11, 20, 0, 0, 20, 21, 0, 0, 2, 1) // #39 +PAIRING(10, 20, 20, 25, 6, 10, 11, 25, 1, 1, 11, 20, 0, 0, 20, 25, 0, 0, 1, 1) // #40 +PAIRING(10, 20, 20, 25, 6, 10, 11, 26, 1, 1, 11, 20, 0, 0, 20, 25, 0, 0, 1, 2) // #41 +PAIRING(10, 20, 20, 25, 6, 10, 20, 21, 0, 1, 0, 0, 0, 0, 20, 21, 0, 0, 2, 1) // #42 +PAIRING(10, 20, 20, 25, 6, 10, 20, 25, 0, 1, 0, 0, 0, 0, 20, 25, 0, 0, 1, 1) // #43 +PAIRING(10, 20, 20, 25, 6, 10, 20, 26, 0, 1, 0, 0, 0, 0, 20, 25, 0, 0, 1, 2) // #44 +PAIRING(10, 20, 20, 25, 6, 10, 21, 22, 0, 1, 0, 0, 0, 0, 21, 22, 0, 0, 2, 1) // #45 +PAIRING(10, 20, 20, 25, 6, 10, 21, 25, 0, 1, 0, 0, 0, 0, 21, 25, 0, 0, 2, 1) // #46 +PAIRING(10, 20, 20, 25, 6, 10, 21, 26, 0, 1, 0, 0, 0, 0, 21, 25, 0, 0, 2, 2) // #47 +PAIRING(10, 20, 20, 25, 6, 10, 25, 26, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2) // #48 +PAIRING(10, 20, 20, 25, 6, 10, 26, 27, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2) // #49 +PAIRING(10, 20, 20, 25, 6, 11, 11, 12, 2, 0, 10, 11, 11, 12, 0, 0, 0, 0, 2, 1) // #50 +PAIRING(10, 20, 20, 25, 6, 11, 11, 20, 2, 0, 10, 11, 11, 20, 0, 0, 0, 0, 1, 1) // #51 +PAIRING(10, 20, 20, 25, 6, 11, 11, 21, 2, 1, 10, 11, 11, 20, 20, 21, 0, 0, 1, 1) // #52 +PAIRING(10, 20, 20, 25, 6, 11, 11, 25, 2, 1, 10, 11, 11, 20, 20, 25, 0, 0, 0, 1) // #53 +PAIRING(10, 20, 20, 25, 6, 11, 11, 26, 2, 1, 10, 11, 11, 20, 20, 25, 0, 0, 0, 2) // #54 +PAIRING(10, 20, 20, 25, 6, 11, 12, 13, 2, 0, 10, 11, 12, 13, 0, 0, 0, 0, 2, 1) // #55 +PAIRING(10, 20, 20, 25, 6, 11, 12, 20, 2, 0, 10, 11, 12, 20, 0, 0, 0, 0, 2, 1) // #56 +PAIRING(10, 20, 20, 25, 6, 11, 12, 21, 2, 1, 10, 11, 12, 20, 20, 21, 0, 0, 2, 1) // #57 +PAIRING(10, 20, 20, 25, 6, 11, 12, 25, 2, 1, 10, 11, 12, 20, 20, 25, 0, 0, 1, 1) // #58 +PAIRING(10, 20, 20, 25, 6, 11, 12, 26, 2, 1, 10, 11, 12, 20, 20, 25, 0, 0, 1, 2) // #59 +PAIRING(10, 20, 20, 25, 6, 11, 20, 21, 1, 1, 10, 11, 0, 0, 20, 21, 0, 0, 2, 1) // #60 +PAIRING(10, 20, 20, 25, 6, 11, 20, 25, 1, 1, 10, 11, 0, 0, 20, 25, 0, 0, 1, 1) // #61 +PAIRING(10, 20, 20, 25, 6, 11, 20, 26, 1, 1, 10, 11, 0, 0, 20, 25, 0, 0, 1, 2) // #62 +PAIRING(10, 20, 20, 25, 6, 11, 21, 22, 1, 1, 10, 11, 0, 0, 21, 22, 0, 0, 2, 1) // #63 +PAIRING(10, 20, 20, 25, 6, 11, 21, 25, 1, 1, 10, 11, 0, 0, 21, 25, 0, 0, 2, 1) // #64 +PAIRING(10, 20, 20, 25, 6, 11, 21, 26, 1, 1, 10, 11, 0, 0, 21, 25, 0, 0, 2, 2) // #65 +PAIRING(10, 20, 20, 25, 6, 11, 25, 26, 1, 0, 10, 11, 0, 0, 0, 0, 0, 0, 2, 2) // #66 +PAIRING(10, 20, 20, 25, 6, 11, 26, 27, 1, 0, 10, 11, 0, 0, 0, 0, 0, 0, 2, 2) // #67 +PAIRING(10, 20, 20, 25, 6, 20, 20, 21, 1, 1, 10, 20, 0, 0, 20, 21, 0, 0, 1, 1) // #68 +PAIRING(10, 20, 20, 25, 6, 20, 20, 25, 1, 1, 10, 20, 0, 0, 20, 25, 0, 0, 0, 1) // #69 +PAIRING(10, 20, 20, 25, 6, 20, 20, 26, 1, 1, 10, 20, 0, 0, 20, 25, 0, 0, 0, 2) // #70 +PAIRING(10, 20, 20, 25, 6, 20, 21, 22, 1, 1, 10, 20, 0, 0, 21, 22, 0, 0, 1, 1) // #71 +PAIRING(10, 20, 20, 25, 6, 20, 21, 25, 1, 1, 10, 20, 0, 0, 21, 25, 0, 0, 1, 1) // #72 +PAIRING(10, 20, 20, 25, 6, 20, 21, 26, 1, 1, 10, 20, 0, 0, 21, 25, 0, 0, 1, 2) // #73 +PAIRING(10, 20, 20, 25, 6, 20, 25, 26, 1, 0, 10, 20, 0, 0, 0, 0, 0, 0, 1, 2) // #74 +PAIRING(10, 20, 20, 25, 6, 20, 26, 27, 1, 0, 10, 20, 0, 0, 0, 0, 0, 0, 1, 2) // #75 +PAIRING(10, 20, 20, 25, 6, 21, 21, 22, 1, 2, 10, 20, 0, 0, 20, 21, 21, 22, 1, 1) // #76 +PAIRING(10, 20, 20, 25, 6, 21, 21, 25, 1, 2, 10, 20, 0, 0, 20, 21, 21, 25, 0, 1) // #77 +PAIRING(10, 20, 20, 25, 6, 21, 21, 26, 1, 2, 10, 20, 0, 0, 20, 21, 21, 25, 0, 2) // #78 +PAIRING(10, 20, 20, 25, 6, 21, 22, 23, 1, 2, 10, 20, 0, 0, 20, 21, 22, 23, 1, 1) // #79 +PAIRING(10, 20, 20, 25, 6, 21, 22, 25, 1, 2, 10, 20, 0, 0, 20, 21, 22, 25, 1, 1) // #80 +PAIRING(10, 20, 20, 25, 6, 21, 22, 26, 1, 2, 10, 20, 0, 0, 20, 21, 22, 25, 1, 2) // #81 +PAIRING(10, 20, 20, 25, 6, 21, 25, 26, 1, 1, 10, 20, 0, 0, 20, 21, 0, 0, 1, 2) // #82 +PAIRING(10, 20, 20, 25, 6, 21, 26, 27, 1, 1, 10, 20, 0, 0, 20, 21, 0, 0, 1, 2) // #83 +PAIRING(10, 20, 20, 25, 6, 25, 25, 26, 1, 1, 10, 20, 0, 0, 20, 25, 0, 0, 0, 2) // #84 +PAIRING(10, 20, 20, 25, 6, 25, 26, 27, 1, 1, 10, 20, 0, 0, 20, 25, 0, 0, 0, 2) // #85 +PAIRING(10, 20, 20, 25, 6, 26, 26, 27, 1, 1, 10, 20, 0, 0, 20, 25, 0, 0, 0, 2) // #86 +PAIRING(10, 20, 20, 25, 6, 26, 27, 28, 1, 1, 10, 20, 0, 0, 20, 25, 0, 0, 0, 2) // #87 +PAIRING(10, 20, 20, 25, 10, 11, 11, 12, 2, 0, 10, 11, 11, 12, 0, 0, 0, 0, 2, 0) // #88 +PAIRING(10, 20, 20, 25, 10, 11, 11, 20, 2, 0, 10, 11, 11, 20, 0, 0, 0, 0, 1, 0) // #89 +PAIRING(10, 20, 20, 25, 10, 11, 11, 21, 2, 1, 10, 11, 11, 20, 20, 21, 0, 0, 1, 0) // #90 +PAIRING(10, 20, 20, 25, 10, 11, 11, 25, 2, 1, 10, 11, 11, 20, 20, 25, 0, 0, 0, 0) // #91 +PAIRING(10, 20, 20, 25, 10, 11, 11, 26, 2, 1, 10, 11, 11, 20, 20, 25, 0, 0, 0, 1) // #92 +PAIRING(10, 20, 20, 25, 10, 11, 12, 13, 2, 0, 10, 11, 12, 13, 0, 0, 0, 0, 2, 0) // #93 +PAIRING(10, 20, 20, 25, 10, 11, 12, 20, 2, 0, 10, 11, 12, 20, 0, 0, 0, 0, 2, 0) // #94 +PAIRING(10, 20, 20, 25, 10, 11, 12, 21, 2, 1, 10, 11, 12, 20, 20, 21, 0, 0, 2, 0) // #95 +PAIRING(10, 20, 20, 25, 10, 11, 12, 25, 2, 1, 10, 11, 12, 20, 20, 25, 0, 0, 1, 0) // #96 +PAIRING(10, 20, 20, 25, 10, 11, 12, 26, 2, 1, 10, 11, 12, 20, 20, 25, 0, 0, 1, 1) // #97 +PAIRING(10, 20, 20, 25, 10, 11, 20, 21, 1, 1, 10, 11, 0, 0, 20, 21, 0, 0, 2, 0) // #98 +PAIRING(10, 20, 20, 25, 10, 11, 20, 25, 1, 1, 10, 11, 0, 0, 20, 25, 0, 0, 1, 0) // #99 +PAIRING(10, 20, 20, 25, 10, 11, 20, 26, 1, 1, 10, 11, 0, 0, 20, 25, 0, 0, 1, 1) // #100 +PAIRING(10, 20, 20, 25, 10, 11, 21, 22, 1, 1, 10, 11, 0, 0, 21, 22, 0, 0, 2, 0) // #101 +PAIRING(10, 20, 20, 25, 10, 11, 21, 25, 1, 1, 10, 11, 0, 0, 21, 25, 0, 0, 2, 0) // #102 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21, 21, 22, 1, 2, 10, 20, 0, 0, 20, 21, 21, 22, 1, 0) // #114 +PAIRING(10, 20, 20, 25, 10, 21, 21, 25, 1, 2, 10, 20, 0, 0, 20, 21, 21, 25, 0, 0) // #115 +PAIRING(10, 20, 20, 25, 10, 21, 21, 26, 1, 2, 10, 20, 0, 0, 20, 21, 21, 25, 0, 1) // #116 +PAIRING(10, 20, 20, 25, 10, 21, 22, 23, 1, 2, 10, 20, 0, 0, 20, 21, 22, 23, 1, 0) // #117 +PAIRING(10, 20, 20, 25, 10, 21, 22, 25, 1, 2, 10, 20, 0, 0, 20, 21, 22, 25, 1, 0) // #118 +PAIRING(10, 20, 20, 25, 10, 21, 22, 26, 1, 2, 10, 20, 0, 0, 20, 21, 22, 25, 1, 1) // #119 +PAIRING(10, 20, 20, 25, 10, 21, 25, 26, 1, 1, 10, 20, 0, 0, 20, 21, 0, 0, 1, 1) // #120 +PAIRING(10, 20, 20, 25, 10, 21, 26, 27, 1, 1, 10, 20, 0, 0, 20, 21, 0, 0, 1, 1) // #121 +PAIRING(10, 20, 20, 25, 10, 25, 25, 26, 1, 1, 10, 20, 0, 0, 20, 25, 0, 0, 0, 1) // #122 +PAIRING(10, 20, 20, 25, 10, 25, 26, 27, 1, 1, 10, 20, 0, 0, 20, 25, 0, 0, 0, 1) // #123 +PAIRING(10, 20, 20, 25, 10, 26, 26, 27, 1, 1, 10, 20, 0, 0, 20, 25, 0, 0, 0, 2) // #124 +PAIRING(10, 20, 20, 25, 10, 26, 27, 28, 1, 1, 10, 20, 0, 0, 20, 25, 0, 0, 0, 2) // #125 +PAIRING(10, 20, 20, 25, 11, 12, 12, 13, 2, 0, 11, 12, 12, 13, 0, 0, 0, 0, 2, 0) // #126 +PAIRING(10, 20, 20, 25, 11, 12, 12, 20, 2, 0, 11, 12, 12, 20, 0, 0, 0, 0, 2, 0) // #127 +PAIRING(10, 20, 20, 25, 11, 12, 12, 21, 2, 1, 11, 12, 12, 20, 20, 21, 0, 0, 2, 0) // #128 +PAIRING(10, 20, 20, 25, 11, 12, 12, 25, 2, 1, 11, 12, 12, 20, 20, 25, 0, 0, 1, 0) // #129 +PAIRING(10, 20, 20, 25, 11, 12, 12, 26, 2, 1, 11, 12, 12, 20, 20, 25, 0, 0, 1, 1) // #130 +PAIRING(10, 20, 20, 25, 11, 12, 13, 14, 2, 0, 11, 12, 13, 14, 0, 0, 0, 0, 2, 0) // #131 +PAIRING(10, 20, 20, 25, 11, 12, 13, 20, 2, 0, 11, 12, 13, 20, 0, 0, 0, 0, 2, 0) // #132 +PAIRING(10, 20, 20, 25, 11, 12, 13, 21, 2, 1, 11, 12, 13, 20, 20, 21, 0, 0, 2, 0) // #133 +PAIRING(10, 20, 20, 25, 11, 12, 13, 25, 2, 1, 11, 12, 13, 20, 20, 25, 0, 0, 1, 0) // #134 +PAIRING(10, 20, 20, 25, 11, 12, 13, 26, 2, 1, 11, 12, 13, 20, 20, 25, 0, 0, 1, 1) // #135 +PAIRING(10, 20, 20, 25, 11, 12, 20, 21, 1, 1, 11, 12, 0, 0, 20, 21, 0, 0, 2, 0) // #136 +PAIRING(10, 20, 20, 25, 11, 12, 20, 25, 1, 1, 11, 12, 0, 0, 20, 25, 0, 0, 1, 0) // #137 +PAIRING(10, 20, 20, 25, 11, 12, 20, 26, 1, 1, 11, 12, 0, 0, 20, 25, 0, 0, 1, 1) // #138 +PAIRING(10, 20, 20, 25, 11, 12, 21, 22, 1, 1, 11, 12, 0, 0, 21, 22, 0, 0, 2, 0) // #139 +PAIRING(10, 20, 20, 25, 11, 12, 21, 25, 1, 1, 11, 12, 0, 0, 21, 25, 0, 0, 2, 0) // #140 +PAIRING(10, 20, 20, 25, 11, 12, 21, 26, 1, 1, 11, 12, 0, 0, 21, 25, 0, 0, 2, 1) // #141 +PAIRING(10, 20, 20, 25, 11, 12, 25, 26, 1, 0, 11, 12, 0, 0, 0, 0, 0, 0, 2, 1) // #142 +PAIRING(10, 20, 20, 25, 11, 12, 26, 27, 1, 0, 11, 12, 0, 0, 0, 0, 0, 0, 2, 1) // #143 +PAIRING(10, 20, 20, 25, 11, 20, 20, 21, 1, 1, 11, 20, 0, 0, 20, 21, 0, 0, 2, 0) // #144 +PAIRING(10, 20, 20, 25, 11, 20, 20, 25, 1, 1, 11, 20, 0, 0, 20, 25, 0, 0, 1, 0) // #145 +PAIRING(10, 20, 20, 25, 11, 20, 20, 26, 1, 1, 11, 20, 0, 0, 20, 25, 0, 0, 1, 1) // #146 +PAIRING(10, 20, 20, 25, 11, 20, 21, 22, 1, 1, 11, 20, 0, 0, 21, 22, 0, 0, 2, 0) // #147 +PAIRING(10, 20, 20, 25, 11, 20, 21, 25, 1, 1, 11, 20, 0, 0, 21, 25, 0, 0, 2, 0) // #148 +PAIRING(10, 20, 20, 25, 11, 20, 21, 26, 1, 1, 11, 20, 0, 0, 21, 25, 0, 0, 2, 1) // #149 +PAIRING(10, 20, 20, 25, 11, 20, 25, 26, 1, 0, 11, 20, 0, 0, 0, 0, 0, 0, 2, 1) // #150 +PAIRING(10, 20, 20, 25, 11, 20, 26, 27, 1, 0, 11, 20, 0, 0, 0, 0, 0, 0, 2, 1) // #151 +PAIRING(10, 20, 20, 25, 11, 21, 21, 22, 1, 2, 11, 20, 0, 0, 20, 21, 21, 22, 2, 0) // #152 +PAIRING(10, 20, 20, 25, 11, 21, 21, 25, 1, 2, 11, 20, 0, 0, 20, 21, 21, 25, 1, 0) // #153 +PAIRING(10, 20, 20, 25, 11, 21, 21, 26, 1, 2, 11, 20, 0, 0, 20, 21, 21, 25, 1, 1) // #154 +PAIRING(10, 20, 20, 25, 11, 21, 22, 23, 1, 2, 11, 20, 0, 0, 20, 21, 22, 23, 2, 0) // #155 +PAIRING(10, 20, 20, 25, 11, 21, 22, 25, 1, 2, 11, 20, 0, 0, 20, 21, 22, 25, 2, 0) // #156 +PAIRING(10, 20, 20, 25, 11, 21, 22, 26, 1, 2, 11, 20, 0, 0, 20, 21, 22, 25, 2, 1) // #157 +PAIRING(10, 20, 20, 25, 11, 21, 25, 26, 1, 1, 11, 20, 0, 0, 20, 21, 0, 0, 2, 1) // #158 +PAIRING(10, 20, 20, 25, 11, 21, 26, 27, 1, 1, 11, 20, 0, 0, 20, 21, 0, 0, 2, 1) // #159 +PAIRING(10, 20, 20, 25, 11, 25, 25, 26, 1, 1, 11, 20, 0, 0, 20, 25, 0, 0, 1, 1) // #160 +PAIRING(10, 20, 20, 25, 11, 25, 26, 27, 1, 1, 11, 20, 0, 0, 20, 25, 0, 0, 1, 1) // #161 +PAIRING(10, 20, 20, 25, 11, 26, 26, 27, 1, 1, 11, 20, 0, 0, 20, 25, 0, 0, 1, 2) // #162 +PAIRING(10, 20, 20, 25, 11, 26, 27, 28, 1, 1, 11, 20, 0, 0, 20, 25, 0, 0, 1, 2) // #163 +PAIRING(10, 20, 20, 25, 20, 21, 21, 22, 0, 2, 0, 0, 0, 0, 20, 21, 21, 22, 2, 0) // #164 +PAIRING(10, 20, 20, 25, 20, 21, 21, 25, 0, 2, 0, 0, 0, 0, 20, 21, 21, 25, 1, 0) // #165 +PAIRING(10, 20, 20, 25, 20, 21, 21, 26, 0, 2, 0, 0, 0, 0, 20, 21, 21, 25, 1, 1) // #166 +PAIRING(10, 20, 20, 25, 20, 21, 22, 23, 0, 2, 0, 0, 0, 0, 20, 21, 22, 23, 2, 0) // #167 +PAIRING(10, 20, 20, 25, 20, 21, 22, 25, 0, 2, 0, 0, 0, 0, 20, 21, 22, 25, 2, 0) // #168 +PAIRING(10, 20, 20, 25, 20, 21, 22, 26, 0, 2, 0, 0, 0, 0, 20, 21, 22, 25, 2, 1) // #169 +PAIRING(10, 20, 20, 25, 20, 21, 25, 26, 0, 1, 0, 0, 0, 0, 20, 21, 0, 0, 2, 1) // #170 +PAIRING(10, 20, 20, 25, 20, 21, 26, 27, 0, 1, 0, 0, 0, 0, 20, 21, 0, 0, 2, 1) // #171 +PAIRING(10, 20, 20, 25, 20, 25, 25, 26, 0, 1, 0, 0, 0, 0, 20, 25, 0, 0, 1, 1) // #172 +PAIRING(10, 20, 20, 25, 20, 25, 26, 27, 0, 1, 0, 0, 0, 0, 20, 25, 0, 0, 1, 1) // #173 +PAIRING(10, 20, 20, 25, 20, 26, 26, 27, 0, 1, 0, 0, 0, 0, 20, 25, 0, 0, 1, 2) // #174 +PAIRING(10, 20, 20, 25, 20, 26, 27, 28, 0, 1, 0, 0, 0, 0, 20, 25, 0, 0, 1, 2) // #175 +PAIRING(10, 20, 20, 25, 21, 22, 22, 23, 0, 2, 0, 0, 0, 0, 21, 22, 22, 23, 2, 0) // #176 +PAIRING(10, 20, 20, 25, 21, 22, 22, 25, 0, 2, 0, 0, 0, 0, 21, 22, 22, 25, 2, 0) // #177 +PAIRING(10, 20, 20, 25, 21, 22, 22, 26, 0, 2, 0, 0, 0, 0, 21, 22, 22, 25, 2, 1) // #178 +PAIRING(10, 20, 20, 25, 21, 22, 23, 24, 0, 2, 0, 0, 0, 0, 21, 22, 23, 24, 2, 0) // #179 +PAIRING(10, 20, 20, 25, 21, 22, 23, 25, 0, 2, 0, 0, 0, 0, 21, 22, 23, 25, 2, 0) // #180 +PAIRING(10, 20, 20, 25, 21, 22, 23, 26, 0, 2, 0, 0, 0, 0, 21, 22, 23, 25, 2, 1) // #181 +PAIRING(10, 20, 20, 25, 21, 22, 25, 26, 0, 1, 0, 0, 0, 0, 21, 22, 0, 0, 2, 1) // #182 +PAIRING(10, 20, 20, 25, 21, 22, 26, 27, 0, 1, 0, 0, 0, 0, 21, 22, 0, 0, 2, 1) // #183 +PAIRING(10, 20, 20, 25, 21, 25, 25, 26, 0, 1, 0, 0, 0, 0, 21, 25, 0, 0, 2, 1) // #184 +PAIRING(10, 20, 20, 25, 21, 25, 26, 27, 0, 1, 0, 0, 0, 0, 21, 25, 0, 0, 2, 1) // #185 +PAIRING(10, 20, 20, 25, 21, 26, 26, 27, 0, 1, 0, 0, 0, 0, 21, 25, 0, 0, 2, 2) // #186 +PAIRING(10, 20, 20, 25, 21, 26, 27, 28, 0, 1, 0, 0, 0, 0, 21, 25, 0, 0, 2, 2) // #187 +PAIRING(10, 20, 20, 25, 25, 26, 26, 27, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2) // #188 +PAIRING(10, 20, 20, 25, 25, 26, 27, 28, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2) // #189 +PAIRING(10, 20, 20, 25, 26, 27, 27, 28, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2) // #190 +PAIRING(10, 20, 20, 25, 26, 27, 28, 29, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2) // #191 +PAIRING(10, 15, 20, 25, 6, 7, 7, 8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2) // #192 +PAIRING(10, 15, 20, 25, 6, 7, 7, 10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2) // #193 +PAIRING(10, 15, 20, 25, 6, 7, 7, 11, 1, 0, 10, 11, 0, 0, 0, 0, 0, 0, 2, 2) // #194 +PAIRING(10, 15, 20, 25, 6, 7, 7, 15, 1, 0, 10, 15, 0, 0, 0, 0, 0, 0, 1, 2) // #195 +PAIRING(10, 15, 20, 25, 6, 7, 7, 16, 1, 0, 10, 15, 0, 0, 0, 0, 0, 0, 1, 2) // #196 +PAIRING(10, 15, 20, 25, 6, 7, 7, 20, 1, 0, 10, 15, 0, 0, 0, 0, 0, 0, 1, 2) // #197 +PAIRING(10, 15, 20, 25, 6, 7, 7, 21, 1, 1, 10, 15, 0, 0, 20, 21, 0, 0, 1, 2) // #198 +PAIRING(10, 15, 20, 25, 6, 7, 7, 25, 1, 1, 10, 15, 0, 0, 20, 25, 0, 0, 0, 2) // #199 +PAIRING(10, 15, 20, 25, 6, 7, 7, 26, 1, 1, 10, 15, 0, 0, 20, 25, 0, 0, 0, 2) // #200 +PAIRING(10, 15, 20, 25, 6, 7, 8, 9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2) // #201 +PAIRING(10, 15, 20, 25, 6, 7, 8, 10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2) // #202 +PAIRING(10, 15, 20, 25, 6, 7, 8, 11, 1, 0, 10, 11, 0, 0, 0, 0, 0, 0, 2, 2) // #203 +PAIRING(10, 15, 20, 25, 6, 7, 8, 15, 1, 0, 10, 15, 0, 0, 0, 0, 0, 0, 1, 2) // #204 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2, 2) // #251 +PAIRING(10, 15, 20, 25, 6, 10, 11, 20, 1, 0, 11, 15, 0, 0, 0, 0, 0, 0, 2, 1) // #252 +PAIRING(10, 15, 20, 25, 6, 10, 11, 21, 1, 1, 11, 15, 0, 0, 20, 21, 0, 0, 2, 2) // #253 +PAIRING(10, 15, 20, 25, 6, 10, 11, 25, 1, 1, 11, 15, 0, 0, 20, 25, 0, 0, 1, 2) // #254 +PAIRING(10, 15, 20, 25, 6, 10, 11, 26, 1, 1, 11, 15, 0, 0, 20, 25, 0, 0, 1, 2) // #255 +PAIRING(10, 15, 20, 25, 6, 10, 15, 16, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2) // #256 +PAIRING(10, 15, 20, 25, 6, 10, 15, 20, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2) // #257 +PAIRING(10, 15, 20, 25, 6, 10, 15, 21, 0, 1, 0, 0, 0, 0, 20, 21, 0, 0, 2, 2) // #258 +PAIRING(10, 15, 20, 25, 6, 10, 15, 25, 0, 1, 0, 0, 0, 0, 20, 25, 0, 0, 1, 2) // #259 +PAIRING(10, 15, 20, 25, 6, 10, 15, 26, 0, 1, 0, 0, 0, 0, 20, 25, 0, 0, 1, 2) // #260 +PAIRING(10, 15, 20, 25, 6, 10, 16, 17, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2) // #261 +PAIRING(10, 15, 20, 25, 6, 10, 16, 20, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2) // #262 +PAIRING(10, 15, 20, 25, 6, 10, 16, 21, 0, 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0, 1, 2) // #297 +PAIRING(10, 15, 20, 25, 6, 11, 20, 21, 1, 1, 10, 11, 0, 0, 20, 21, 0, 0, 2, 1) // #298 +PAIRING(10, 15, 20, 25, 6, 11, 20, 25, 1, 1, 10, 11, 0, 0, 20, 25, 0, 0, 1, 1) // #299 +PAIRING(10, 15, 20, 25, 6, 11, 20, 26, 1, 1, 10, 11, 0, 0, 20, 25, 0, 0, 1, 2) // #300 +PAIRING(10, 15, 20, 25, 6, 11, 21, 22, 1, 1, 10, 11, 0, 0, 21, 22, 0, 0, 2, 1) // #301 +PAIRING(10, 15, 20, 25, 6, 11, 21, 25, 1, 1, 10, 11, 0, 0, 21, 25, 0, 0, 2, 1) // #302 +PAIRING(10, 15, 20, 25, 6, 11, 21, 26, 1, 1, 10, 11, 0, 0, 21, 25, 0, 0, 2, 2) // #303 +PAIRING(10, 15, 20, 25, 6, 11, 25, 26, 1, 0, 10, 11, 0, 0, 0, 0, 0, 0, 2, 2) // #304 +PAIRING(10, 15, 20, 25, 6, 11, 26, 27, 1, 0, 10, 11, 0, 0, 0, 0, 0, 0, 2, 2) // #305 +PAIRING(10, 15, 20, 25, 6, 15, 15, 16, 1, 0, 10, 15, 0, 0, 0, 0, 0, 0, 1, 2) // #306 +PAIRING(10, 15, 20, 25, 6, 15, 15, 20, 1, 0, 10, 15, 0, 0, 0, 0, 0, 0, 1, 2) // #307 +PAIRING(10, 15, 20, 25, 6, 15, 15, 21, 1, 1, 10, 15, 0, 0, 20, 21, 0, 0, 1, 2) // #308 +PAIRING(10, 15, 20, 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1) // #354 +PAIRING(10, 15, 20, 25, 6, 21, 22, 26, 1, 2, 10, 15, 0, 0, 20, 21, 22, 25, 1, 2) // #355 +PAIRING(10, 15, 20, 25, 6, 21, 25, 26, 1, 1, 10, 15, 0, 0, 20, 21, 0, 0, 1, 2) // #356 +PAIRING(10, 15, 20, 25, 6, 21, 26, 27, 1, 1, 10, 15, 0, 0, 20, 21, 0, 0, 1, 2) // #357 +PAIRING(10, 15, 20, 25, 6, 25, 25, 26, 1, 1, 10, 15, 0, 0, 20, 25, 0, 0, 0, 2) // #358 +PAIRING(10, 15, 20, 25, 6, 25, 26, 27, 1, 1, 10, 15, 0, 0, 20, 25, 0, 0, 0, 2) // #359 +PAIRING(10, 15, 20, 25, 6, 26, 26, 27, 1, 1, 10, 15, 0, 0, 20, 25, 0, 0, 0, 2) // #360 +PAIRING(10, 15, 20, 25, 6, 26, 27, 28, 1, 1, 10, 15, 0, 0, 20, 25, 0, 0, 0, 2) // #361 +PAIRING(10, 15, 20, 25, 10, 11, 11, 12, 2, 0, 10, 11, 11, 12, 0, 0, 0, 0, 2, 0) // #362 +PAIRING(10, 15, 20, 25, 10, 11, 11, 15, 2, 0, 10, 11, 11, 15, 0, 0, 0, 0, 1, 0) // #363 +PAIRING(10, 15, 20, 25, 10, 11, 11, 16, 2, 0, 10, 11, 11, 15, 0, 0, 0, 0, 1, 1) // #364 +PAIRING(10, 15, 20, 25, 10, 11, 11, 20, 2, 0, 10, 11, 11, 15, 0, 0, 0, 0, 1, 0) // #365 +PAIRING(10, 15, 20, 25, 10, 11, 11, 21, 2, 1, 10, 11, 11, 15, 20, 21, 0, 0, 1, 1) // #366 +PAIRING(10, 15, 20, 25, 10, 11, 11, 25, 2, 1, 10, 11, 11, 15, 20, 25, 0, 0, 0, 1) // #367 +PAIRING(10, 15, 20, 25, 10, 11, 11, 26, 2, 1, 10, 11, 11, 15, 20, 25, 0, 0, 0, 1) // #368 +PAIRING(10, 15, 20, 25, 10, 11, 12, 13, 2, 0, 10, 11, 12, 13, 0, 0, 0, 0, 2, 0) // #369 +PAIRING(10, 15, 20, 25, 10, 11, 12, 15, 2, 0, 10, 11, 12, 15, 0, 0, 0, 0, 2, 0) // #370 +PAIRING(10, 15, 20, 25, 10, 11, 12, 16, 2, 0, 10, 11, 12, 15, 0, 0, 0, 0, 2, 1) // #371 +PAIRING(10, 15, 20, 25, 10, 11, 12, 20, 2, 0, 10, 11, 12, 15, 0, 0, 0, 0, 2, 0) // #372 +PAIRING(10, 15, 20, 25, 10, 11, 12, 21, 2, 1, 10, 11, 12, 15, 20, 21, 0, 0, 2, 1) // #373 +PAIRING(10, 15, 20, 25, 10, 11, 12, 25, 2, 1, 10, 11, 12, 15, 20, 25, 0, 0, 1, 1) // #374 +PAIRING(10, 15, 20, 25, 10, 11, 12, 26, 2, 1, 10, 11, 12, 15, 20, 25, 0, 0, 1, 1) // #375 +PAIRING(10, 15, 20, 25, 10, 11, 15, 16, 1, 0, 10, 11, 0, 0, 0, 0, 0, 0, 2, 1) // #376 +PAIRING(10, 15, 20, 25, 10, 11, 15, 20, 1, 0, 10, 11, 0, 0, 0, 0, 0, 0, 2, 1) // #377 +PAIRING(10, 15, 20, 25, 10, 11, 15, 21, 1, 1, 10, 11, 0, 0, 20, 21, 0, 0, 2, 1) // #378 +PAIRING(10, 15, 20, 25, 10, 11, 15, 25, 1, 1, 10, 11, 0, 0, 20, 25, 0, 0, 1, 1) // #379 +PAIRING(10, 15, 20, 25, 10, 11, 15, 26, 1, 1, 10, 11, 0, 0, 20, 25, 0, 0, 1, 1) // #380 +PAIRING(10, 15, 20, 25, 10, 11, 16, 17, 1, 0, 10, 11, 0, 0, 0, 0, 0, 0, 2, 1) // #381 +PAIRING(10, 15, 20, 25, 10, 11, 16, 20, 1, 0, 10, 11, 0, 0, 0, 0, 0, 0, 2, 1) // #382 +PAIRING(10, 15, 20, 25, 10, 11, 16, 21, 1, 1, 10, 11, 0, 0, 20, 21, 0, 0, 2, 1) // #383 +PAIRING(10, 15, 20, 25, 10, 11, 16, 25, 1, 1, 10, 11, 0, 0, 20, 25, 0, 0, 1, 1) // #384 +PAIRING(10, 15, 20, 25, 10, 11, 16, 26, 1, 1, 10, 11, 0, 0, 20, 25, 0, 0, 1, 1) // #385 +PAIRING(10, 15, 20, 25, 10, 11, 20, 21, 1, 1, 10, 11, 0, 0, 20, 21, 0, 0, 2, 0) // #386 +PAIRING(10, 15, 20, 25, 10, 11, 20, 25, 1, 1, 10, 11, 0, 0, 20, 25, 0, 0, 1, 0) // #387 +PAIRING(10, 15, 20, 25, 10, 11, 20, 26, 1, 1, 10, 11, 0, 0, 20, 25, 0, 0, 1, 1) // #388 +PAIRING(10, 15, 20, 25, 10, 11, 21, 22, 1, 1, 10, 11, 0, 0, 21, 22, 0, 0, 2, 0) // #389 +PAIRING(10, 15, 20, 25, 10, 11, 21, 25, 1, 1, 10, 11, 0, 0, 21, 25, 0, 0, 2, 0) // #390 +PAIRING(10, 15, 20, 25, 10, 11, 21, 26, 1, 1, 10, 11, 0, 0, 21, 25, 0, 0, 2, 1) // #391 +PAIRING(10, 15, 20, 25, 10, 11, 25, 26, 1, 0, 10, 11, 0, 0, 0, 0, 0, 0, 2, 1) // #392 +PAIRING(10, 15, 20, 25, 10, 11, 26, 27, 1, 0, 10, 11, 0, 0, 0, 0, 0, 0, 2, 1) // #393 +PAIRING(10, 15, 20, 25, 10, 15, 15, 16, 1, 0, 10, 15, 0, 0, 0, 0, 0, 0, 1, 1) // #394 +PAIRING(10, 15, 20, 25, 10, 15, 15, 20, 1, 0, 10, 15, 0, 0, 0, 0, 0, 0, 1, 1) // #395 +PAIRING(10, 15, 20, 25, 10, 15, 15, 21, 1, 1, 10, 15, 0, 0, 20, 21, 0, 0, 1, 1) // #396 +PAIRING(10, 15, 20, 25, 10, 15, 15, 25, 1, 1, 10, 15, 0, 0, 20, 25, 0, 0, 0, 1) // #397 +PAIRING(10, 15, 20, 25, 10, 15, 15, 26, 1, 1, 10, 15, 0, 0, 20, 25, 0, 0, 0, 1) // #398 +PAIRING(10, 15, 20, 25, 10, 15, 16, 17, 1, 0, 10, 15, 0, 0, 0, 0, 0, 0, 1, 1) // #399 +PAIRING(10, 15, 20, 25, 10, 15, 16, 20, 1, 0, 10, 15, 0, 0, 0, 0, 0, 0, 1, 1) // #400 +PAIRING(10, 15, 20, 25, 10, 15, 16, 21, 1, 1, 10, 15, 0, 0, 20, 21, 0, 0, 1, 1) // #401 +PAIRING(10, 15, 20, 25, 10, 15, 16, 25, 1, 1, 10, 15, 0, 0, 20, 25, 0, 0, 0, 1) // #402 +PAIRING(10, 15, 20, 25, 10, 15, 16, 26, 1, 1, 10, 15, 0, 0, 20, 25, 0, 0, 0, 1) // #403 +PAIRING(10, 15, 20, 25, 10, 15, 20, 21, 1, 1, 10, 15, 0, 0, 20, 21, 0, 0, 1, 0) // #404 +PAIRING(10, 15, 20, 25, 10, 15, 20, 25, 1, 1, 10, 15, 0, 0, 20, 25, 0, 0, 0, 0) // #405 +PAIRING(10, 15, 20, 25, 10, 15, 20, 26, 1, 1, 10, 15, 0, 0, 20, 25, 0, 0, 0, 1) // #406 +PAIRING(10, 15, 20, 25, 10, 15, 21, 22, 1, 1, 10, 15, 0, 0, 21, 22, 0, 0, 1, 0) // #407 +PAIRING(10, 15, 20, 25, 10, 15, 21, 25, 1, 1, 10, 15, 0, 0, 21, 25, 0, 0, 1, 0) // #408 +PAIRING(10, 15, 20, 25, 10, 15, 21, 26, 1, 1, 10, 15, 0, 0, 21, 25, 0, 0, 1, 1) // #409 +PAIRING(10, 15, 20, 25, 10, 15, 25, 26, 1, 0, 10, 15, 0, 0, 0, 0, 0, 0, 1, 1) // #410 +PAIRING(10, 15, 20, 25, 10, 15, 26, 27, 1, 0, 10, 15, 0, 0, 0, 0, 0, 0, 1, 1) // #411 +PAIRING(10, 15, 20, 25, 10, 16, 16, 17, 1, 0, 10, 15, 0, 0, 0, 0, 0, 0, 1, 2) // #412 +PAIRING(10, 15, 20, 25, 10, 16, 16, 20, 1, 0, 10, 15, 0, 0, 0, 0, 0, 0, 1, 2) // #413 +PAIRING(10, 15, 20, 25, 10, 16, 16, 21, 1, 1, 10, 15, 0, 0, 20, 21, 0, 0, 1, 2) // #414 +PAIRING(10, 15, 20, 25, 10, 16, 16, 25, 1, 1, 10, 15, 0, 0, 20, 25, 0, 0, 0, 2) // #415 +PAIRING(10, 15, 20, 25, 10, 16, 16, 26, 1, 1, 10, 15, 0, 0, 20, 25, 0, 0, 0, 2) // #416 +PAIRING(10, 15, 20, 25, 10, 16, 17, 18, 1, 0, 10, 15, 0, 0, 0, 0, 0, 0, 1, 2) // #417 +PAIRING(10, 15, 20, 25, 10, 16, 17, 20, 1, 0, 10, 15, 0, 0, 0, 0, 0, 0, 1, 2) // #418 +PAIRING(10, 15, 20, 25, 10, 16, 17, 21, 1, 1, 10, 15, 0, 0, 20, 21, 0, 0, 1, 2) // #419 +PAIRING(10, 15, 20, 25, 10, 16, 17, 25, 1, 1, 10, 15, 0, 0, 20, 25, 0, 0, 0, 2) // #420 +PAIRING(10, 15, 20, 25, 10, 16, 17, 26, 1, 1, 10, 15, 0, 0, 20, 25, 0, 0, 0, 2) // #421 +PAIRING(10, 15, 20, 25, 10, 16, 20, 21, 1, 1, 10, 15, 0, 0, 20, 21, 0, 0, 1, 1) // #422 +PAIRING(10, 15, 20, 25, 10, 16, 20, 25, 1, 1, 10, 15, 0, 0, 20, 25, 0, 0, 0, 1) // #423 +PAIRING(10, 15, 20, 25, 10, 16, 20, 26, 1, 1, 10, 15, 0, 0, 20, 25, 0, 0, 0, 2) // #424 +PAIRING(10, 15, 20, 25, 10, 16, 21, 22, 1, 1, 10, 15, 0, 0, 21, 22, 0, 0, 1, 1) // #425 +PAIRING(10, 15, 20, 25, 10, 16, 21, 25, 1, 1, 10, 15, 0, 0, 21, 25, 0, 0, 1, 1) // #426 +PAIRING(10, 15, 20, 25, 10, 16, 21, 26, 1, 1, 10, 15, 0, 0, 21, 25, 0, 0, 1, 2) // #427 +PAIRING(10, 15, 20, 25, 10, 16, 25, 26, 1, 0, 10, 15, 0, 0, 0, 0, 0, 0, 1, 2) // #428 +PAIRING(10, 15, 20, 25, 10, 16, 26, 27, 1, 0, 10, 15, 0, 0, 0, 0, 0, 0, 1, 2) // #429 +PAIRING(10, 15, 20, 25, 10, 20, 20, 21, 1, 1, 10, 15, 0, 0, 20, 21, 0, 0, 1, 0) // #430 +PAIRING(10, 15, 20, 25, 10, 20, 20, 25, 1, 1, 10, 15, 0, 0, 20, 25, 0, 0, 0, 0) // #431 +PAIRING(10, 15, 20, 25, 10, 20, 20, 26, 1, 1, 10, 15, 0, 0, 20, 25, 0, 0, 0, 1) // #432 +PAIRING(10, 15, 20, 25, 10, 20, 21, 22, 1, 1, 10, 15, 0, 0, 21, 22, 0, 0, 1, 0) // #433 +PAIRING(10, 15, 20, 25, 10, 20, 21, 25, 1, 1, 10, 15, 0, 0, 21, 25, 0, 0, 1, 0) // #434 +PAIRING(10, 15, 20, 25, 10, 20, 21, 26, 1, 1, 10, 15, 0, 0, 21, 25, 0, 0, 1, 1) // #435 +PAIRING(10, 15, 20, 25, 10, 20, 25, 26, 1, 0, 10, 15, 0, 0, 0, 0, 0, 0, 1, 1) // #436 +PAIRING(10, 15, 20, 25, 10, 20, 26, 27, 1, 0, 10, 15, 0, 0, 0, 0, 0, 0, 1, 1) // #437 +PAIRING(10, 15, 20, 25, 10, 21, 21, 22, 1, 2, 10, 15, 0, 0, 20, 21, 21, 22, 1, 1) // #438 +PAIRING(10, 15, 20, 25, 10, 21, 21, 25, 1, 2, 10, 15, 0, 0, 20, 21, 21, 25, 0, 1) // #439 +PAIRING(10, 15, 20, 25, 10, 21, 21, 26, 1, 2, 10, 15, 0, 0, 20, 21, 21, 25, 0, 2) // #440 +PAIRING(10, 15, 20, 25, 10, 21, 22, 23, 1, 2, 10, 15, 0, 0, 20, 21, 22, 23, 1, 1) // #441 +PAIRING(10, 15, 20, 25, 10, 21, 22, 25, 1, 2, 10, 15, 0, 0, 20, 21, 22, 25, 1, 1) // #442 +PAIRING(10, 15, 20, 25, 10, 21, 22, 26, 1, 2, 10, 15, 0, 0, 20, 21, 22, 25, 1, 2) // #443 +PAIRING(10, 15, 20, 25, 10, 21, 25, 26, 1, 1, 10, 15, 0, 0, 20, 21, 0, 0, 1, 2) // #444 +PAIRING(10, 15, 20, 25, 10, 21, 26, 27, 1, 1, 10, 15, 0, 0, 20, 21, 0, 0, 1, 2) // #445 +PAIRING(10, 15, 20, 25, 10, 25, 25, 26, 1, 1, 10, 15, 0, 0, 20, 25, 0, 0, 0, 2) // #446 +PAIRING(10, 15, 20, 25, 10, 25, 26, 27, 1, 1, 10, 15, 0, 0, 20, 25, 0, 0, 0, 2) // #447 +PAIRING(10, 15, 20, 25, 10, 26, 26, 27, 1, 1, 10, 15, 0, 0, 20, 25, 0, 0, 0, 2) // #448 +PAIRING(10, 15, 20, 25, 10, 26, 27, 28, 1, 1, 10, 15, 0, 0, 20, 25, 0, 0, 0, 2) // #449 +PAIRING(10, 15, 20, 25, 11, 12, 12, 13, 2, 0, 11, 12, 12, 13, 0, 0, 0, 0, 2, 0) // #450 +PAIRING(10, 15, 20, 25, 11, 12, 12, 15, 2, 0, 11, 12, 12, 15, 0, 0, 0, 0, 2, 0) // #451 +PAIRING(10, 15, 20, 25, 11, 12, 12, 16, 2, 0, 11, 12, 12, 15, 0, 0, 0, 0, 2, 1) // #452 +PAIRING(10, 15, 20, 25, 11, 12, 12, 20, 2, 0, 11, 12, 12, 15, 0, 0, 0, 0, 2, 0) // #453 +PAIRING(10, 15, 20, 25, 11, 12, 12, 21, 2, 1, 11, 12, 12, 15, 20, 21, 0, 0, 2, 1) // #454 +PAIRING(10, 15, 20, 25, 11, 12, 12, 25, 2, 1, 11, 12, 12, 15, 20, 25, 0, 0, 1, 1) // #455 +PAIRING(10, 15, 20, 25, 11, 12, 12, 26, 2, 1, 11, 12, 12, 15, 20, 25, 0, 0, 1, 1) // #456 +PAIRING(10, 15, 20, 25, 11, 12, 13, 14, 2, 0, 11, 12, 13, 14, 0, 0, 0, 0, 2, 0) // #457 +PAIRING(10, 15, 20, 25, 11, 12, 13, 15, 2, 0, 11, 12, 13, 15, 0, 0, 0, 0, 2, 0) // #458 +PAIRING(10, 15, 20, 25, 11, 12, 13, 16, 2, 0, 11, 12, 13, 15, 0, 0, 0, 0, 2, 1) // #459 +PAIRING(10, 15, 20, 25, 11, 12, 13, 20, 2, 0, 11, 12, 13, 15, 0, 0, 0, 0, 2, 0) // #460 +PAIRING(10, 15, 20, 25, 11, 12, 13, 21, 2, 1, 11, 12, 13, 15, 20, 21, 0, 0, 2, 1) // #461 +PAIRING(10, 15, 20, 25, 11, 12, 13, 25, 2, 1, 11, 12, 13, 15, 20, 25, 0, 0, 1, 1) // #462 +PAIRING(10, 15, 20, 25, 11, 12, 13, 26, 2, 1, 11, 12, 13, 15, 20, 25, 0, 0, 1, 1) // #463 +PAIRING(10, 15, 20, 25, 11, 12, 15, 16, 1, 0, 11, 12, 0, 0, 0, 0, 0, 0, 2, 1) // #464 +PAIRING(10, 15, 20, 25, 11, 12, 15, 20, 1, 0, 11, 12, 0, 0, 0, 0, 0, 0, 2, 1) // #465 +PAIRING(10, 15, 20, 25, 11, 12, 15, 21, 1, 1, 11, 12, 0, 0, 20, 21, 0, 0, 2, 1) // #466 +PAIRING(10, 15, 20, 25, 11, 12, 15, 25, 1, 1, 11, 12, 0, 0, 20, 25, 0, 0, 1, 1) // #467 +PAIRING(10, 15, 20, 25, 11, 12, 15, 26, 1, 1, 11, 12, 0, 0, 20, 25, 0, 0, 1, 1) // #468 +PAIRING(10, 15, 20, 25, 11, 12, 16, 17, 1, 0, 11, 12, 0, 0, 0, 0, 0, 0, 2, 1) // #469 +PAIRING(10, 15, 20, 25, 11, 12, 16, 20, 1, 0, 11, 12, 0, 0, 0, 0, 0, 0, 2, 1) // #470 +PAIRING(10, 15, 20, 25, 11, 12, 16, 21, 1, 1, 11, 12, 0, 0, 20, 21, 0, 0, 2, 1) // #471 +PAIRING(10, 15, 20, 25, 11, 12, 16, 25, 1, 1, 11, 12, 0, 0, 20, 25, 0, 0, 1, 1) // #472 +PAIRING(10, 15, 20, 25, 11, 12, 16, 26, 1, 1, 11, 12, 0, 0, 20, 25, 0, 0, 1, 1) // #473 +PAIRING(10, 15, 20, 25, 11, 12, 20, 21, 1, 1, 11, 12, 0, 0, 20, 21, 0, 0, 2, 0) // #474 +PAIRING(10, 15, 20, 25, 11, 12, 20, 25, 1, 1, 11, 12, 0, 0, 20, 25, 0, 0, 1, 0) // #475 +PAIRING(10, 15, 20, 25, 11, 12, 20, 26, 1, 1, 11, 12, 0, 0, 20, 25, 0, 0, 1, 1) // #476 +PAIRING(10, 15, 20, 25, 11, 12, 21, 22, 1, 1, 11, 12, 0, 0, 21, 22, 0, 0, 2, 0) // #477 +PAIRING(10, 15, 20, 25, 11, 12, 21, 25, 1, 1, 11, 12, 0, 0, 21, 25, 0, 0, 2, 0) // #478 +PAIRING(10, 15, 20, 25, 11, 12, 21, 26, 1, 1, 11, 12, 0, 0, 21, 25, 0, 0, 2, 1) // #479 +PAIRING(10, 15, 20, 25, 11, 12, 25, 26, 1, 0, 11, 12, 0, 0, 0, 0, 0, 0, 2, 1) // #480 +PAIRING(10, 15, 20, 25, 11, 12, 26, 27, 1, 0, 11, 12, 0, 0, 0, 0, 0, 0, 2, 1) // #481 +PAIRING(10, 15, 20, 25, 11, 15, 15, 16, 1, 0, 11, 15, 0, 0, 0, 0, 0, 0, 2, 1) // #482 +PAIRING(10, 15, 20, 25, 11, 15, 15, 20, 1, 0, 11, 15, 0, 0, 0, 0, 0, 0, 2, 1) // #483 +PAIRING(10, 15, 20, 25, 11, 15, 15, 21, 1, 1, 11, 15, 0, 0, 20, 21, 0, 0, 2, 1) // #484 +PAIRING(10, 15, 20, 25, 11, 15, 15, 25, 1, 1, 11, 15, 0, 0, 20, 25, 0, 0, 1, 1) // #485 +PAIRING(10, 15, 20, 25, 11, 15, 15, 26, 1, 1, 11, 15, 0, 0, 20, 25, 0, 0, 1, 1) // #486 +PAIRING(10, 15, 20, 25, 11, 15, 16, 17, 1, 0, 11, 15, 0, 0, 0, 0, 0, 0, 2, 1) // #487 +PAIRING(10, 15, 20, 25, 11, 15, 16, 20, 1, 0, 11, 15, 0, 0, 0, 0, 0, 0, 2, 1) // #488 +PAIRING(10, 15, 20, 25, 11, 15, 16, 21, 1, 1, 11, 15, 0, 0, 20, 21, 0, 0, 2, 1) // #489 +PAIRING(10, 15, 20, 25, 11, 15, 16, 25, 1, 1, 11, 15, 0, 0, 20, 25, 0, 0, 1, 1) // #490 +PAIRING(10, 15, 20, 25, 11, 15, 16, 26, 1, 1, 11, 15, 0, 0, 20, 25, 0, 0, 1, 1) // #491 +PAIRING(10, 15, 20, 25, 11, 15, 20, 21, 1, 1, 11, 15, 0, 0, 20, 21, 0, 0, 2, 0) // #492 +PAIRING(10, 15, 20, 25, 11, 15, 20, 25, 1, 1, 11, 15, 0, 0, 20, 25, 0, 0, 1, 0) // #493 +PAIRING(10, 15, 20, 25, 11, 15, 20, 26, 1, 1, 11, 15, 0, 0, 20, 25, 0, 0, 1, 1) // #494 +PAIRING(10, 15, 20, 25, 11, 15, 21, 22, 1, 1, 11, 15, 0, 0, 21, 22, 0, 0, 2, 0) // #495 +PAIRING(10, 15, 20, 25, 11, 15, 21, 25, 1, 1, 11, 15, 0, 0, 21, 25, 0, 0, 2, 0) // #496 +PAIRING(10, 15, 20, 25, 11, 15, 21, 26, 1, 1, 11, 15, 0, 0, 21, 25, 0, 0, 2, 1) // #497 +PAIRING(10, 15, 20, 25, 11, 15, 25, 26, 1, 0, 11, 15, 0, 0, 0, 0, 0, 0, 2, 1) // #498 +PAIRING(10, 15, 20, 25, 11, 15, 26, 27, 1, 0, 11, 15, 0, 0, 0, 0, 0, 0, 2, 1) // #499 +PAIRING(10, 15, 20, 25, 11, 16, 16, 17, 1, 0, 11, 15, 0, 0, 0, 0, 0, 0, 2, 2) // #500 +PAIRING(10, 15, 20, 25, 11, 16, 16, 20, 1, 0, 11, 15, 0, 0, 0, 0, 0, 0, 2, 2) // #501 +PAIRING(10, 15, 20, 25, 11, 16, 16, 21, 1, 1, 11, 15, 0, 0, 20, 21, 0, 0, 2, 2) // #502 +PAIRING(10, 15, 20, 25, 11, 16, 16, 25, 1, 1, 11, 15, 0, 0, 20, 25, 0, 0, 1, 2) // #503 +PAIRING(10, 15, 20, 25, 11, 16, 16, 26, 1, 1, 11, 15, 0, 0, 20, 25, 0, 0, 1, 2) // #504 +PAIRING(10, 15, 20, 25, 11, 16, 17, 18, 1, 0, 11, 15, 0, 0, 0, 0, 0, 0, 2, 2) // #505 +PAIRING(10, 15, 20, 25, 11, 16, 17, 20, 1, 0, 11, 15, 0, 0, 0, 0, 0, 0, 2, 2) // #506 +PAIRING(10, 15, 20, 25, 11, 16, 17, 21, 1, 1, 11, 15, 0, 0, 20, 21, 0, 0, 2, 2) // #507 +PAIRING(10, 15, 20, 25, 11, 16, 17, 25, 1, 1, 11, 15, 0, 0, 20, 25, 0, 0, 1, 2) // #508 +PAIRING(10, 15, 20, 25, 11, 16, 17, 26, 1, 1, 11, 15, 0, 0, 20, 25, 0, 0, 1, 2) // #509 +PAIRING(10, 15, 20, 25, 11, 16, 20, 21, 1, 1, 11, 15, 0, 0, 20, 21, 0, 0, 2, 1) // #510 +PAIRING(10, 15, 20, 25, 11, 16, 20, 25, 1, 1, 11, 15, 0, 0, 20, 25, 0, 0, 1, 1) // #511 +PAIRING(10, 15, 20, 25, 11, 16, 20, 26, 1, 1, 11, 15, 0, 0, 20, 25, 0, 0, 1, 2) // #512 +PAIRING(10, 15, 20, 25, 11, 16, 21, 22, 1, 1, 11, 15, 0, 0, 21, 22, 0, 0, 2, 1) // #513 +PAIRING(10, 15, 20, 25, 11, 16, 21, 25, 1, 1, 11, 15, 0, 0, 21, 25, 0, 0, 2, 1) // #514 +PAIRING(10, 15, 20, 25, 11, 16, 21, 26, 1, 1, 11, 15, 0, 0, 21, 25, 0, 0, 2, 2) // #515 +PAIRING(10, 15, 20, 25, 11, 16, 25, 26, 1, 0, 11, 15, 0, 0, 0, 0, 0, 0, 2, 2) // #516 +PAIRING(10, 15, 20, 25, 11, 16, 26, 27, 1, 0, 11, 15, 0, 0, 0, 0, 0, 0, 2, 2) // #517 +PAIRING(10, 15, 20, 25, 11, 20, 20, 21, 1, 1, 11, 15, 0, 0, 20, 21, 0, 0, 2, 0) // #518 +PAIRING(10, 15, 20, 25, 11, 20, 20, 25, 1, 1, 11, 15, 0, 0, 20, 25, 0, 0, 1, 0) // #519 +PAIRING(10, 15, 20, 25, 11, 20, 20, 26, 1, 1, 11, 15, 0, 0, 20, 25, 0, 0, 1, 1) // #520 +PAIRING(10, 15, 20, 25, 11, 20, 21, 22, 1, 1, 11, 15, 0, 0, 21, 22, 0, 0, 2, 0) // #521 +PAIRING(10, 15, 20, 25, 11, 20, 21, 25, 1, 1, 11, 15, 0, 0, 21, 25, 0, 0, 2, 0) // #522 +PAIRING(10, 15, 20, 25, 11, 20, 21, 26, 1, 1, 11, 15, 0, 0, 21, 25, 0, 0, 2, 1) // #523 +PAIRING(10, 15, 20, 25, 11, 20, 25, 26, 1, 0, 11, 15, 0, 0, 0, 0, 0, 0, 2, 1) // #524 +PAIRING(10, 15, 20, 25, 11, 20, 26, 27, 1, 0, 11, 15, 0, 0, 0, 0, 0, 0, 2, 1) // #525 +PAIRING(10, 15, 20, 25, 11, 21, 21, 22, 1, 2, 11, 15, 0, 0, 20, 21, 21, 22, 2, 1) // #526 +PAIRING(10, 15, 20, 25, 11, 21, 21, 25, 1, 2, 11, 15, 0, 0, 20, 21, 21, 25, 1, 1) // #527 +PAIRING(10, 15, 20, 25, 11, 21, 21, 26, 1, 2, 11, 15, 0, 0, 20, 21, 21, 25, 1, 2) // #528 +PAIRING(10, 15, 20, 25, 11, 21, 22, 23, 1, 2, 11, 15, 0, 0, 20, 21, 22, 23, 2, 1) // #529 +PAIRING(10, 15, 20, 25, 11, 21, 22, 25, 1, 2, 11, 15, 0, 0, 20, 21, 22, 25, 2, 1) // #530 +PAIRING(10, 15, 20, 25, 11, 21, 22, 26, 1, 2, 11, 15, 0, 0, 20, 21, 22, 25, 2, 2) // #531 +PAIRING(10, 15, 20, 25, 11, 21, 25, 26, 1, 1, 11, 15, 0, 0, 20, 21, 0, 0, 2, 2) // #532 +PAIRING(10, 15, 20, 25, 11, 21, 26, 27, 1, 1, 11, 15, 0, 0, 20, 21, 0, 0, 2, 2) // #533 +PAIRING(10, 15, 20, 25, 11, 25, 25, 26, 1, 1, 11, 15, 0, 0, 20, 25, 0, 0, 1, 2) // #534 +PAIRING(10, 15, 20, 25, 11, 25, 26, 27, 1, 1, 11, 15, 0, 0, 20, 25, 0, 0, 1, 2) // #535 +PAIRING(10, 15, 20, 25, 11, 26, 26, 27, 1, 1, 11, 15, 0, 0, 20, 25, 0, 0, 1, 2) // #536 +PAIRING(10, 15, 20, 25, 11, 26, 27, 28, 1, 1, 11, 15, 0, 0, 20, 25, 0, 0, 1, 2) // #537 +PAIRING(10, 15, 20, 25, 15, 16, 16, 17, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2) // #538 +PAIRING(10, 15, 20, 25, 15, 16, 16, 20, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2) // #539 +PAIRING(10, 15, 20, 25, 15, 16, 16, 21, 0, 1, 0, 0, 0, 0, 20, 21, 0, 0, 2, 2) // #540 +PAIRING(10, 15, 20, 25, 15, 16, 16, 25, 0, 1, 0, 0, 0, 0, 20, 25, 0, 0, 1, 2) // #541 +PAIRING(10, 15, 20, 25, 15, 16, 16, 26, 0, 1, 0, 0, 0, 0, 20, 25, 0, 0, 1, 2) // #542 +PAIRING(10, 15, 20, 25, 15, 16, 17, 18, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2) // #543 +PAIRING(10, 15, 20, 25, 15, 16, 17, 20, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2) // #544 +PAIRING(10, 15, 20, 25, 15, 16, 17, 21, 0, 1, 0, 0, 0, 0, 20, 21, 0, 0, 2, 2) // #545 +PAIRING(10, 15, 20, 25, 15, 16, 17, 25, 0, 1, 0, 0, 0, 0, 20, 25, 0, 0, 1, 2) // #546 +PAIRING(10, 15, 20, 25, 15, 16, 17, 26, 0, 1, 0, 0, 0, 0, 20, 25, 0, 0, 1, 2) // #547 +PAIRING(10, 15, 20, 25, 15, 16, 20, 21, 0, 1, 0, 0, 0, 0, 20, 21, 0, 0, 2, 1) // #548 +PAIRING(10, 15, 20, 25, 15, 16, 20, 25, 0, 1, 0, 0, 0, 0, 20, 25, 0, 0, 1, 1) // #549 +PAIRING(10, 15, 20, 25, 15, 16, 20, 26, 0, 1, 0, 0, 0, 0, 20, 25, 0, 0, 1, 2) // #550 +PAIRING(10, 15, 20, 25, 15, 16, 21, 22, 0, 1, 0, 0, 0, 0, 21, 22, 0, 0, 2, 1) // #551 +PAIRING(10, 15, 20, 25, 15, 16, 21, 25, 0, 1, 0, 0, 0, 0, 21, 25, 0, 0, 2, 1) // #552 +PAIRING(10, 15, 20, 25, 15, 16, 21, 26, 0, 1, 0, 0, 0, 0, 21, 25, 0, 0, 2, 2) // #553 +PAIRING(10, 15, 20, 25, 15, 16, 25, 26, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2) // #554 +PAIRING(10, 15, 20, 25, 15, 16, 26, 27, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2) // #555 +PAIRING(10, 15, 20, 25, 15, 20, 20, 21, 0, 1, 0, 0, 0, 0, 20, 21, 0, 0, 2, 1) // #556 +PAIRING(10, 15, 20, 25, 15, 20, 20, 25, 0, 1, 0, 0, 0, 0, 20, 25, 0, 0, 1, 1) // #557 +PAIRING(10, 15, 20, 25, 15, 20, 20, 26, 0, 1, 0, 0, 0, 0, 20, 25, 0, 0, 1, 2) // #558 +PAIRING(10, 15, 20, 25, 15, 20, 21, 22, 0, 1, 0, 0, 0, 0, 21, 22, 0, 0, 2, 1) // #559 +PAIRING(10, 15, 20, 25, 15, 20, 21, 25, 0, 1, 0, 0, 0, 0, 21, 25, 0, 0, 2, 1) // #560 +PAIRING(10, 15, 20, 25, 15, 20, 21, 26, 0, 1, 0, 0, 0, 0, 21, 25, 0, 0, 2, 2) // #561 +PAIRING(10, 15, 20, 25, 15, 20, 25, 26, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2) // #562 +PAIRING(10, 15, 20, 25, 15, 20, 26, 27, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2) // #563 +PAIRING(10, 15, 20, 25, 15, 21, 21, 22, 0, 2, 0, 0, 0, 0, 20, 21, 21, 22, 2, 1) // #564 +PAIRING(10, 15, 20, 25, 15, 21, 21, 25, 0, 2, 0, 0, 0, 0, 20, 21, 21, 25, 1, 1) // #565 +PAIRING(10, 15, 20, 25, 15, 21, 21, 26, 0, 2, 0, 0, 0, 0, 20, 21, 21, 25, 1, 2) // #566 +PAIRING(10, 15, 20, 25, 15, 21, 22, 23, 0, 2, 0, 0, 0, 0, 20, 21, 22, 23, 2, 1) // #567 +PAIRING(10, 15, 20, 25, 15, 21, 22, 25, 0, 2, 0, 0, 0, 0, 20, 21, 22, 25, 2, 1) // #568 +PAIRING(10, 15, 20, 25, 15, 21, 22, 26, 0, 2, 0, 0, 0, 0, 20, 21, 22, 25, 2, 2) // #569 +PAIRING(10, 15, 20, 25, 15, 21, 25, 26, 0, 1, 0, 0, 0, 0, 20, 21, 0, 0, 2, 2) // #570 +PAIRING(10, 15, 20, 25, 15, 21, 26, 27, 0, 1, 0, 0, 0, 0, 20, 21, 0, 0, 2, 2) // #571 +PAIRING(10, 15, 20, 25, 15, 25, 25, 26, 0, 1, 0, 0, 0, 0, 20, 25, 0, 0, 1, 2) // #572 +PAIRING(10, 15, 20, 25, 15, 25, 26, 27, 0, 1, 0, 0, 0, 0, 20, 25, 0, 0, 1, 2) // #573 +PAIRING(10, 15, 20, 25, 15, 26, 26, 27, 0, 1, 0, 0, 0, 0, 20, 25, 0, 0, 1, 2) // #574 +PAIRING(10, 15, 20, 25, 15, 26, 27, 28, 0, 1, 0, 0, 0, 0, 20, 25, 0, 0, 1, 2) // #575 +PAIRING(10, 15, 20, 25, 16, 17, 17, 18, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2) // #576 +PAIRING(10, 15, 20, 25, 16, 17, 17, 20, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2) // #577 +PAIRING(10, 15, 20, 25, 16, 17, 17, 21, 0, 1, 0, 0, 0, 0, 20, 21, 0, 0, 2, 2) // #578 +PAIRING(10, 15, 20, 25, 16, 17, 17, 25, 0, 1, 0, 0, 0, 0, 20, 25, 0, 0, 1, 2) // #579 +PAIRING(10, 15, 20, 25, 16, 17, 17, 26, 0, 1, 0, 0, 0, 0, 20, 25, 0, 0, 1, 2) // #580 +PAIRING(10, 15, 20, 25, 16, 17, 18, 19, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2) // #581 +PAIRING(10, 15, 20, 25, 16, 17, 18, 20, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2) // #582 +PAIRING(10, 15, 20, 25, 16, 17, 18, 21, 0, 1, 0, 0, 0, 0, 20, 21, 0, 0, 2, 2) // #583 +PAIRING(10, 15, 20, 25, 16, 17, 18, 25, 0, 1, 0, 0, 0, 0, 20, 25, 0, 0, 1, 2) // #584 +PAIRING(10, 15, 20, 25, 16, 17, 18, 26, 0, 1, 0, 0, 0, 0, 20, 25, 0, 0, 1, 2) // #585 +PAIRING(10, 15, 20, 25, 16, 17, 20, 21, 0, 1, 0, 0, 0, 0, 20, 21, 0, 0, 2, 1) // #586 +PAIRING(10, 15, 20, 25, 16, 17, 20, 25, 0, 1, 0, 0, 0, 0, 20, 25, 0, 0, 1, 1) // #587 +PAIRING(10, 15, 20, 25, 16, 17, 20, 26, 0, 1, 0, 0, 0, 0, 20, 25, 0, 0, 1, 2) // #588 +PAIRING(10, 15, 20, 25, 16, 17, 21, 22, 0, 1, 0, 0, 0, 0, 21, 22, 0, 0, 2, 1) // #589 +PAIRING(10, 15, 20, 25, 16, 17, 21, 25, 0, 1, 0, 0, 0, 0, 21, 25, 0, 0, 2, 1) // #590 +PAIRING(10, 15, 20, 25, 16, 17, 21, 26, 0, 1, 0, 0, 0, 0, 21, 25, 0, 0, 2, 2) // #591 +PAIRING(10, 15, 20, 25, 16, 17, 25, 26, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2) // #592 +PAIRING(10, 15, 20, 25, 16, 17, 26, 27, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2) // #593 +PAIRING(10, 15, 20, 25, 16, 20, 20, 21, 0, 1, 0, 0, 0, 0, 20, 21, 0, 0, 2, 1) // #594 +PAIRING(10, 15, 20, 25, 16, 20, 20, 25, 0, 1, 0, 0, 0, 0, 20, 25, 0, 0, 1, 1) // #595 +PAIRING(10, 15, 20, 25, 16, 20, 20, 26, 0, 1, 0, 0, 0, 0, 20, 25, 0, 0, 1, 2) // #596 +PAIRING(10, 15, 20, 25, 16, 20, 21, 22, 0, 1, 0, 0, 0, 0, 21, 22, 0, 0, 2, 1) // #597 +PAIRING(10, 15, 20, 25, 16, 20, 21, 25, 0, 1, 0, 0, 0, 0, 21, 25, 0, 0, 2, 1) // #598 +PAIRING(10, 15, 20, 25, 16, 20, 21, 26, 0, 1, 0, 0, 0, 0, 21, 25, 0, 0, 2, 2) // #599 +PAIRING(10, 15, 20, 25, 16, 20, 25, 26, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2) // #600 +PAIRING(10, 15, 20, 25, 16, 20, 26, 27, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2) // #601 +PAIRING(10, 15, 20, 25, 16, 21, 21, 22, 0, 2, 0, 0, 0, 0, 20, 21, 21, 22, 2, 1) // #602 +PAIRING(10, 15, 20, 25, 16, 21, 21, 25, 0, 2, 0, 0, 0, 0, 20, 21, 21, 25, 1, 1) // #603 +PAIRING(10, 15, 20, 25, 16, 21, 21, 26, 0, 2, 0, 0, 0, 0, 20, 21, 21, 25, 1, 2) // #604 +PAIRING(10, 15, 20, 25, 16, 21, 22, 23, 0, 2, 0, 0, 0, 0, 20, 21, 22, 23, 2, 1) // #605 +PAIRING(10, 15, 20, 25, 16, 21, 22, 25, 0, 2, 0, 0, 0, 0, 20, 21, 22, 25, 2, 1) // #606 +PAIRING(10, 15, 20, 25, 16, 21, 22, 26, 0, 2, 0, 0, 0, 0, 20, 21, 22, 25, 2, 2) // #607 +PAIRING(10, 15, 20, 25, 16, 21, 25, 26, 0, 1, 0, 0, 0, 0, 20, 21, 0, 0, 2, 2) // #608 +PAIRING(10, 15, 20, 25, 16, 21, 26, 27, 0, 1, 0, 0, 0, 0, 20, 21, 0, 0, 2, 2) // #609 +PAIRING(10, 15, 20, 25, 16, 25, 25, 26, 0, 1, 0, 0, 0, 0, 20, 25, 0, 0, 1, 2) // #610 +PAIRING(10, 15, 20, 25, 16, 25, 26, 27, 0, 1, 0, 0, 0, 0, 20, 25, 0, 0, 1, 2) // #611 +PAIRING(10, 15, 20, 25, 16, 26, 26, 27, 0, 1, 0, 0, 0, 0, 20, 25, 0, 0, 1, 2) // #612 +PAIRING(10, 15, 20, 25, 16, 26, 27, 28, 0, 1, 0, 0, 0, 0, 20, 25, 0, 0, 1, 2) // #613 +PAIRING(10, 15, 20, 25, 20, 21, 21, 22, 0, 2, 0, 0, 0, 0, 20, 21, 21, 22, 2, 0) // #614 +PAIRING(10, 15, 20, 25, 20, 21, 21, 25, 0, 2, 0, 0, 0, 0, 20, 21, 21, 25, 1, 0) // #615 +PAIRING(10, 15, 20, 25, 20, 21, 21, 26, 0, 2, 0, 0, 0, 0, 20, 21, 21, 25, 1, 1) // #616 +PAIRING(10, 15, 20, 25, 20, 21, 22, 23, 0, 2, 0, 0, 0, 0, 20, 21, 22, 23, 2, 0) // #617 +PAIRING(10, 15, 20, 25, 20, 21, 22, 25, 0, 2, 0, 0, 0, 0, 20, 21, 22, 25, 2, 0) // #618 +PAIRING(10, 15, 20, 25, 20, 21, 22, 26, 0, 2, 0, 0, 0, 0, 20, 21, 22, 25, 2, 1) // #619 +PAIRING(10, 15, 20, 25, 20, 21, 25, 26, 0, 1, 0, 0, 0, 0, 20, 21, 0, 0, 2, 1) // #620 +PAIRING(10, 15, 20, 25, 20, 21, 26, 27, 0, 1, 0, 0, 0, 0, 20, 21, 0, 0, 2, 1) // #621 +PAIRING(10, 15, 20, 25, 20, 25, 25, 26, 0, 1, 0, 0, 0, 0, 20, 25, 0, 0, 1, 1) // #622 +PAIRING(10, 15, 20, 25, 20, 25, 26, 27, 0, 1, 0, 0, 0, 0, 20, 25, 0, 0, 1, 1) // #623 +PAIRING(10, 15, 20, 25, 20, 26, 26, 27, 0, 1, 0, 0, 0, 0, 20, 25, 0, 0, 1, 2) // #624 +PAIRING(10, 15, 20, 25, 20, 26, 27, 28, 0, 1, 0, 0, 0, 0, 20, 25, 0, 0, 1, 2) // #625 +PAIRING(10, 15, 20, 25, 21, 22, 22, 23, 0, 2, 0, 0, 0, 0, 21, 22, 22, 23, 2, 0) // #626 +PAIRING(10, 15, 20, 25, 21, 22, 22, 25, 0, 2, 0, 0, 0, 0, 21, 22, 22, 25, 2, 0) // #627 +PAIRING(10, 15, 20, 25, 21, 22, 22, 26, 0, 2, 0, 0, 0, 0, 21, 22, 22, 25, 2, 1) // #628 +PAIRING(10, 15, 20, 25, 21, 22, 23, 24, 0, 2, 0, 0, 0, 0, 21, 22, 23, 24, 2, 0) // #629 +PAIRING(10, 15, 20, 25, 21, 22, 23, 25, 0, 2, 0, 0, 0, 0, 21, 22, 23, 25, 2, 0) // #630 +PAIRING(10, 15, 20, 25, 21, 22, 23, 26, 0, 2, 0, 0, 0, 0, 21, 22, 23, 25, 2, 1) // #631 +PAIRING(10, 15, 20, 25, 21, 22, 25, 26, 0, 1, 0, 0, 0, 0, 21, 22, 0, 0, 2, 1) // #632 +PAIRING(10, 15, 20, 25, 21, 22, 26, 27, 0, 1, 0, 0, 0, 0, 21, 22, 0, 0, 2, 1) // #633 +PAIRING(10, 15, 20, 25, 21, 25, 25, 26, 0, 1, 0, 0, 0, 0, 21, 25, 0, 0, 2, 1) // #634 +PAIRING(10, 15, 20, 25, 21, 25, 26, 27, 0, 1, 0, 0, 0, 0, 21, 25, 0, 0, 2, 1) // #635 +PAIRING(10, 15, 20, 25, 21, 26, 26, 27, 0, 1, 0, 0, 0, 0, 21, 25, 0, 0, 2, 2) // #636 +PAIRING(10, 15, 20, 25, 21, 26, 27, 28, 0, 1, 0, 0, 0, 0, 21, 25, 0, 0, 2, 2) // #637 +PAIRING(10, 15, 20, 25, 25, 26, 26, 27, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2) // #638 +PAIRING(10, 15, 20, 25, 25, 26, 27, 28, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2) // #639 +PAIRING(10, 15, 20, 25, 26, 27, 27, 28, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2) // #640 +PAIRING(10, 15, 20, 25, 26, 27, 28, 29, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2) // #641 -- cgit v1.2.1