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* Allow building symbol dumping without STABS supportted.mielczarek@gmail.com2013-03-061-0/+8
| | | | | | R=mark at https://breakpad.appspot.com/536002/ git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1125 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Allow reading just CFI data when reading symbolsted.mielczarek@gmail.com2013-03-061-93/+104
| | | | | | R=thestig at https://breakpad.appspot.com/517002/ git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1124 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Fix DumpSymbols error message when using multiple debug_dirs, followup from ↵ted.mielczarek@gmail.com2013-02-271-2/+6
| | | | | | | | r1102. Patch by Julian Seward <jseward@acm.org>, R=ted git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1116 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Make MmapWrapper a little less sillyted.mielczarek@gmail.com2013-02-141-1/+2
| | | | | | R=thestig at https://breakpad.appspot.com/527002/ git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1113 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Include the compilation directory for FILE entries, making them absolute ↵ted.mielczarek@gmail.com2013-01-231-4/+8
| | | | | | | | instead of relative A=Ryan Sleevi <rsleevi@chromium.org> R=mark,ted at https://breakpad.appspot.com/385001/ git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1106 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Make DumpSymbols methods take a vector of debug_dirsted.mielczarek@gmail.com2013-01-221-21/+35
| | | | | | r=thestig at https://breakpad.appspot.com/512002/ git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1102 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Provide a ReadSymbolData function to get symbol data in a Module instead of ↵ted.mielczarek@gmail.com2013-01-181-18/+34
| | | | | | | | just serializing it R=thestig at https://breakpad.appspot.com/510002/ git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1099 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Don't make MmapWrapper's destructor assertted.mielczarek@gmail.com2013-01-181-1/+0
| | | | | | R=mark at https://breakpad.appspot.com/511002/ git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1098 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Rework dump_symbols.cc using templates and traits classes to handle ↵ted.mielczarek2012-07-181-220/+232
| | | | | | | | cross-word-size symbol dumping R=mark at https://breakpad.appspot.com/393002/ git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@987 4c0a9323-5329-0410-9bdc-e9ce6186880e
* This change allows compiling the google-breakpad code using a global ↵ivan.penkov@gmail.com2012-06-281-35/+36
| | | | | | ::string class instead of std::string. For more details take a look at common/using_std_string.h git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@974 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Minor formatting fix following r865.mark@chromium.org2011-10-111-2/+2
| | | | git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@866 4c0a9323-5329-0410-9bdc-e9ce6186880e
* More fixes following r862.mark@chromium.org2011-10-111-6/+6
| | | | git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@865 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Linux/Mac: Add option to omit the CFI section in dump_syms.thestig@chromium.org2011-09-141-3/+5
| | | | | | Review URL: http://breakpad.appspot.com/304001 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@835 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Add some unit tests for Linux WriteSymbolFileted.mielczarek2011-07-061-14/+34
| | | | | | | | | | | This patch adds synth_elf::{StringTable,SymbolTable,ELF} classes to produce in-memory ELF files to properly test the Linux symbol dumping code. It also uses those classes to add some basic tests for the WriteSymbolFile function. R=jimb at http://breakpad.appspot.com/277001/show git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@794 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Dump PUBLIC + CFI records from libraries without debug info on Linux, use ↵ted.mielczarek2011-07-061-5/+51
| | | | | | | | .dynsym for symbol names if there are no usable debug symbols. R=jimb at http://breakpad.appspot.com/275001/show git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@793 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Fix a handful of comment spelling errors (Issue 385)jessicag.feedback@gmail.com2010-09-091-3/+3
| | | | git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@682 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Breakpad Linux dumper: Don't map file into memory a second time just to ↵jimblandy2010-07-171-1/+1
| | | | | | | | | | | | | | | | | | | | compute file ID At present, the Linux symbol dumper maps the ELF file into memory to examine the debugging information it contains, but then also calls google_breakpad::FileID::ElfFileIdentifier, which maps the ELF file into memory again. Some of our object files are large; Mozilla's libxul.so is 1.1GiB. Trying to map such files twice can interfere with tools like valgrind that map themselves into high addresses (in an attempt to stay out of the way of ordinary programs). The FileID class has another method, ElfFileIdentifierFromMappedFile, that operates on an already-loaded image of the file; use that instead. a=jimblandy, r=thestig git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@625 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Add functionality to read the .gnu_debuglink section and load symbols from a ↵thestig@chromium.org2010-07-161-81/+268
| | | | | | | | debug ELF file. Review URL: http://breakpad.appspot.com/126001 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@624 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Remove some duplicate endianness code.thestig@chromium.org2010-07-061-41/+40
| | | | | | Review URL: http://breakpad.appspot.com/125001 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@621 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Linux: Skip sections of type SHT_NOBITS when loading symbols.thestig@chromium.org2010-07-061-3/+10
| | | | | | Review URL: http://breakpad.appspot.com/120001 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@620 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Breakpad: Avoid using the C++ <cfoo> headers.ted.mielczarek2010-06-251-6/+7
| | | | | | | | | | | | This patch avoids unnecessary use of the <cfoo> headers in files that don't actually use the identifiers they declare in the std:: namespace. It also changes some files to better conform with the "Names and Order of Includes" rules in the Google C++ Style Guide. A=jimb R=mark git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@619 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Breakpad DWARF CFI support: Cleanups requested by Nealted.mielczarek2010-06-251-2/+1
| | | | | | | | I came across a bunch of comments Neal had made on issue 55011 that I hadn't addressed. This patch takes care of them. A=jimb R=thestig git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@618 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Breakpad Linux dumper: Handle STABS-in-symbol-table, and line number records ↵jimblandy2010-05-051-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | outside functions. This patch addresses two differences between Linux and Macintosh OS X STABS data: - StabsReader assumes that the STABS entries follow the conventions for storing STABS data in object file sections (that is, .stabs and .stabstr), rather than in the object files's linker symbol table. On Mac OS X, STABS entries live in the Mach-O file's LC_SYMTAB load command, along with all the other linker symbols; they are not grouped into units by N_UNDF entries. This patch adds a boolean argument to the StabsReader constructor indicating whether the parser should treat N_UNDF entries as unit boundaries; this argument should be true on Linux, and false on Mac. The patch changes src/common/linux/dump_symbols.cc to pass this new argument. - Mac OS X STABS place SLINE (line number) records immediately before the FUN record for the function to which they belong, and the values of such records are absolute, not relative to the function start. This patch extends the parser to queue up such records and report them to the handler when we do see the FUN record. The meaning of StabsHandler::Line remains unchanged; existing handlers do not need to be adjusted. This patch also adds unit tests for the new parser behaviors. a=jimblandy, r=mark git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@587 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Breakpad Linux dumper: Rename DumpStabsHandler to StabsToModule.jimblandy2010-05-051-4/+4
| | | | | | | | | | | | | | | All the other classes which receive debugging data from some sort of parser and use it to populate a Module have names ending in "ToModule": DwarfCUToModule, DwarfCFIToModule. Also, DumpStabsHandler doesn't actually dump anything. This patch renames the DumpStabsHandler class to StabsToModule, which is more consistent and descriptive. a=jimblandy, r=thestig git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@584 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Breakpad Linux dumper: Make StabsReader independent of endianness and word size.jimblandy2010-05-051-3/+17
| | | | | | | | | | | | | | | | | | | | | | | | StabsReader simply applies a reinterpret_cast to treat the stab entry data as an array of 'struct nlist' structures, making the parser specific on the host endianness, word size, and alignment rules. On Mac OS X, a single fat binary file may contain object files of different ABIs, of which the user chooses one at run time. This patch changes the parser to read the data using the google_breakpad:: ByteCursor class, which can handle different endiannesses and word sizes. The StabsReader constructor now takes arguments indicating the endianness of the data and the size of each entry's value field. The patch changes src/common/linux/dump_symbols.cc to pass the new argument. This patch changes the StabsReader unit tests to use the google_breakpad:: TestAssembler classes to generate test data, rather than reading it from a file. This makes it easy to generate test data in various endiannesses and word sizes. It also adds tests for the new parser behaviors. a=jimblandy, r=thestig git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@583 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Breakpad Dumper: Move CFI register names to DwarfCFIToModule class.jimblandy2010-04-281-46/+9
| | | | | | | | | | | | | | | | | | At the moment, the mappings from register numbers appearing in DWARF CFI and .eh_frame exception handling sections to the appropriate processor-specific names are in src/common/linux/dump_syms.cc. However, the numberings are (for the most part) the same on all platforms using DWARF, so there's no reason those tables shouldn't be shared between the Linux and Mac symbol dumpers. This patch moves the tables into a nested class of DwarfCFIToModule, so they the Mac dumper can use them when it is changed to use DwarfCFIToModule. a=jimblandy, r=thestig git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@575 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Breakpad symbol dumper: Move Linux dumping classes into src/common.jimblandy2010-04-051-6/+6
| | | | | | | | | | | The Linux symbol dumper's classes are reasonably portable, and should be usable for the Mac dumper as well. Move them to src/common, along with their unit tests. Update #include directives and Makefile. a=jimblandy, r=nealsid git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@567 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Breakpad Linux dumper: Use the correct section's base address.jimblandy2010-04-011-1/+1
| | | | | | | | | | | | | In order to dump call frame information held in .eh_frame sections, the dumper needs to know the proper base address to use for pointers encoded using the DW_EH_PE_textrel encoding. This should be the start of the .text section. However, due to a cut-and-paste typo, the dumper was supplying the base address of the ".got" section instead. a=jimblandy, r=nealsid git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@564 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Breakpad Linux dumper: Include filename in error messages.jimblandy2010-03-311-11/+13
| | | | | | | a=jimblandy, r=nealsid git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@562 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Breakpad: Support DWARF CFI-driven stack walking on ARM.jimblandy2010-03-161-8/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch allows the Breakpad minidump processor to use data from STACK CFI records to generate stack traces for the ARM processor. In the symbol dumper, we need a table mapping DWARF CFI register numbers to their names: STACK CFI records refer to registers by name. In the processor, we expand StackwalkerARM::GetCallerFrame to see if there are STACK CFI records covering the callee, and then use those to recover the caller's register values. There's no good reason the ARM walker couldn't use the SimpleCFIWalker interface declared in cfi_frame_info.h. Unfortunately, that interface assumes that one can map register names to member pointers of the raw context type, while MDRawContextARM uses an array to hold the registers' values: C++ pointer-to-member types can't refer to elements of member arrays. So we have to write out SimpleCFIWalker::FindCallerRegisters in StackwalkerARM::GetCallerFrame. We define enum MDARMRegisterNumbers in minidump_cpu_arm.h, for convenience in referring to certain ARM registers with dedicated purposes, like the stack pointer and the PC. We define validity flags in StackFrameARM for all the registers, since CFI could theoretically recover any of them. In the same vein, we expand minidump_stackwalk.cc to print the values of all valid callee-saves registers in the context --- and use the proper names for special-purpose registers. We provide unit tests that give full code and branch coverage (with minor exceptions). We add a testing interface to StackwalkerARM that allows us to create context frames that lack some register values. a=jimblandy, r=mmentovai git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@553 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Breakpad Linux dumper: Parse the .eh_frame section.jimblandy2010-03-161-3/+33
| | | | | | | | | | | | | | | | | | | | | | | | Extend google_breakpad::CFISection with the ability to produce .eh_frame data. Entry headers have a different format, and pointers can be encoded in new and fascinating ways. Extend dwarf2reader::CallFrameInfo to be able to parse either DWARF CFI or .eh_frame data, as determined by an argument to the constructor. Cope with variations in header formats, encoded pointers, and additional data in 'z' augmentation data blocks. Extend the unit tests appropriately. Extend dump_syms to look for a .eh_frame section, and if it is present, find the necessary base addresess and parse its contents. There's no need for DwarfCFIToModule to check the version numbers; if CallFrameInfo can parse it, DwarfCFIToModule should be able to handle it. Adjust tests accordingly. a=jimblandy, r=nealsid git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@552 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Breakpad Linux dumper: Add support for dumping DWARF CFI as STACK CFI records.jimblandy2010-03-161-0/+133
| | | | | | | | | | | | | | | | | | | | | | | Define a new DWARF parser class, dwarf2reader::CallFrameInfo. Extend google_breakpad::Module to store and write out 'STACK CFI' records. Define a new google_breakpad::DwarfCFIToModule class, to accept DWARF CFI data from the parser and populate a Module with the equivalent STACK CFI records. Extend the Linux symbol dumping tool, dump_syms, to use dwarf2reader::CallFrameInfo, google_breakpad::DwarfCFIToModule, and google_breakpad::Module to extract DWARF CFI from the executable or shared library files and write it to the Breakpad symbol file. Define CFISection, a new class derived from TestAssembler::Section, for use in creating DWARF CFI data for test cases. a=jimblandy, r=nealsid git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@550 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Breakpad Linux dumper: Compare section names correctly.jimblandy2010-02-181-1/+7
| | | | | | | | | | | | | | | | | | | FindSectionByName will return the first section whose name starts with NAME, because strncmp stops the comparison once NAME's characters have been found to match. The comparison stops before the terminating '\0'. For example, if we search for the section named ".eh_frame", we may get the section named ".eh_frame_hdr". Instead, check that the section name section has enough space to store the complete name with its terminating '\0', and then use strcmp, which will never examine more than strlen(NAME) + 1 bytes from the section name section, regardless of its contents, and will require the terminating '\0' to match as well. a=jimblandy, r=nealsid git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@525 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Breakpad Linux dumper: Don't be silly about global functions.jimblandy2010-02-091-2/+1
| | | | | | | | | | | | Yes, classes are useful. But that doesn't mean that every function has to gratuitously become a member function. The Google C++ Style Guide does not require this silliness, since the function is in the google_breakpad namespace anyway. a=jimblandy, r=nealsid git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@519 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Breakpad Linux dumper: Add file comments as required by the style guide.jimblandy2010-02-091-0/+5
| | | | | | | | | | | | | | | | | | | | | | This also includes some comments I promised Cary Coutant I'd write about the appropriateness of processing attributes in EndAttributes calls. The Google C++ Style Guide requires each file to have an author notice and a comment explaining the file's general purpose. For the record, I don't think putting an author notice on the files is a good idea; it's odd to have the original author retain prominence even if the file has been heavily edited by others; the version control system answers this question more accurately. This is only for Style Guide compliance. The Apache group decided to discourage author annotations, partially for these reasons: http://mail-archives.apache.org/mod_mbox/jakarta-jmeter-dev/200402.mbox/%3C4039F65E.7020406@atg.com%3E a=jimblandy, r=nealsid git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@518 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Breakpad: Update copyright notice years on all files changed in 2010.jimblandy2010-02-091-1/+1
| | | | | | | | | | We've gotten mixed advice from the lawyery types about whether this matters. But it's easy enough to do. a=jimblandy, r=nealsid git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@517 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Breakpad Linux dumper: Recognize more processor architectures.jimblandy2010-02-021-12/+35
| | | | | | | | | | | | | | This extends the ElfArchitecture function to recognize the architectures it seemed to me that breakpad was most likely to see. Also: the dumper has historically not provided very helpful error messages. This patch adds a few that were convenient, but we should do an audit for this. a=jimblandy, r=ted.mielczarek git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@507 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Breakpad Linux Dumper: Add DWARF support.jimblandy2010-01-231-27/+122
| | | | | | | | | | | | | | | | | | | | | | | | 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
* Breakpad Linux dumper: move DumpStabsHandler into its own file, for testing.jimblandy2009-12-231-211/+3
| | | | | | | | | This will make it easier to write unit tests for DumpStabsHandler. a=jimblandy, r=nealsid git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@464 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Issue 25002: Linux symbol dumper: Require STABS consumers to provide a ↵jimblandy@gmail.com2009-12-151-0/+8
| | | | | | | | | | | | | Warning member. The StabsHandler class should not provide a fallback definition for its Warning member function that just throws away warning messages. It should require the consumer to provide an appropriate definition. a=jimblandy, r=nealsid git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@442 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Upstreaming several patches from Chrome:nealsid2009-12-011-3/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | Build fix for systems where sys/user.h needs sys/types.h.... http://breakpad.appspot.com/40002 MDRawSystemInfo.processor_level refers to the CPU family, not the cpuid level.. http://breakpad.appspot.com/40003 Use MD_MODULE_SIZE in place of sizeof(MDRawModule). http://breakpad.appspot.com/39003 Linux x64 compile fix. http://breakpad.appspot.com/40004 Include linux_syscall_support.h to get definition of NT_PRXFPREG. This is Chromium commit 23659. http://breakpad.appspot.com/40005 Build breakpad / crash reporting on Linux 64-bit. This is Chromium commit 23396. http://breakpad.appspot.com/40006 Fix #includes in a couple unit tests. http://breakpad.appspot.com/41001 Clean up unused headers / files for Linux dump_syms. http://breakpad.appspot.com/40002 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@432 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Merge of Breakpad Chrome Linux forknealsid2009-08-171-5/+7
| | | | | | | | | A=agl, Lei Zhang R=nealsid, agl git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@384 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Linux dumper: Move the data structures representing the breakpad data into ↵jimblandy@gmail.com2009-08-071-446/+216
| | | | | | | | | | | | | | | | | | | | | | | their own class. src/linux/common/module.h defines a new class, google_breakpad::Module, that can represent the contents of a breakpad symbol file. Module::Write writes a well-formed symbol file to the given stream. src/linux/common/dump_symbols.cc can now lose its symbol-file-writing code, and change DumpStabsHandler to populate a Module object, rather than the old SymbolInfo/SourceFileInfo/... collection of types. The code to compute function and line sizes, even in the absence of reliable size data in STABS, is moved into a new Finalize method of DumpStabsHandler, which is responsible for completing the Module's contents. a=jimblandy r=nealsid git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@380 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Linux dumper: Move STABS parsing into its own class.jimblandy@gmail.com2009-08-071-135/+107
| | | | | | | | | | | | | With this patch, dump_symbols.cc no longer knows about the details of the STABS debugging format; that is handled by the StabsReader class. dump_symbols.cc provides a subclass of StabsHandler that builds dump_symbols' own representation of the data. a=jimblandy r=nealsid git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@378 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Linux dumper: Make the 'name' field of FuncInfo a std::string instead of a ↵jimblandy@gmail.com2009-08-051-10/+13
| | | | | | | | | | | | | | | | | | | char *. Because the actual N_FUN strings in the .stabstr section contain type information after the mangled name, representing this information using a pointer into .stabstr, while efficient with memory, makes the FuncInfo data structure STABS-specific: one must know the details of a STABS N_FUN string's syntax to interpret FuncInfo::name. This patch removes this STABS dependency from the data structure, and moves us closer to having an appropriate structure for representing unified STABS and DWARF data. a=jimblandy r=nealsid git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@375 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Linux dumper: Properly separate function names from STABS type data.jimblandy@gmail.com2009-08-051-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | STABS strings for N_FUN entries contain a mangled function name, followed by a colon, followed by type information. The type information itself may contain colons; mangled names never contain colons (they need to be legal assembly-language identifiers). So the current code in src/common/linux/dump_symbols.cc:WriteOneFunction that attempts to separate the mangled name from the STABS junk will incorrectly include STABS junk in the name, causing demangling to fail. Applying the patch below results in changes like these in the symbol file produced, where an unmangled name followed by STABS junk becomes a properly demangled name: ## --- base/libxul.so.syms 2009-07-13 21:46:33.000000000 -0700 ## +++ tip/libxul.so.syms 2009-07-13 21:51:04.000000000 -0700 ## @@ -3907,7 +3907,7 @@ ## FILE 3905 /home/jimb/mc/in/gfx/cairo/libpixman/src/pixman-region.c ## FILE 3906 combine.inc ## FILE 3907 /home/jimb/mc/in/gfx/cairo/libpixman/src/pixman-edge-imp.h ## -FUNC 19898c 54 0 _Z20NS_GetCaseConversionv:F(0,1201)=*(0,1202)=xsnsICaseConvers ## ion ## +FUNC 19898c 54 0 NS_GetCaseConversion() ## 19898c 12 54 1 ## 19899e 9 56 1 ## 1989a7 6 60 1 ## @@ -214776,7 +214776,7 @@ ## 3847c9 9 57 506 ## 3847d2 13 58 506 ## 3847e5 7 59 506 ## -FUNC 387e89 27 0 _ZN20nsGenericHTMLElement11FromContentEP10nsIContent:F(0,8117) ## =*(0,8118)=xsnsGenericHTMLElement ## +FUNC 387e89 27 0 nsGenericHTMLElement::FromContent(nsIContent*) ## 387e89 7 80 2584 ## 387e90 3 80 2584 ## 387e93 e 82 2584 ## @@ -250473,7 +250473,7 @@ ## 3d0d88 7 82 548 ## 3d0d8f 25 84 548 ## 3d0db4 5 85 548 ## -FUNC 3d0e0c 40 0 _ZL21GetEnclosingListFrameP8nsIFrame:f(0,7182)=*(0,7183)=xsnsL ## istControlFrame ## +FUNC 3d0e0c 40 0 GetEnclosingListFrame(nsIFrame*) ## 3d0e0c 5 146 549 ## 3d0e11 3 722 2645 ## 3d0e14 d 146 549 a=jimblandy r=nealsid git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@374 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Linux dumper: Don't switch to wrong source file when starting new function.jimblandy@gmail.com2009-08-051-6/+11
| | | | | | | | | | | | | | | | In STABS, if one function's line number information contains an N_SOL entry to switch to a new source file, then the next function's line data should pick up in the same source file where the prior function left off. However, the Linux dumper restarts each function in the compilation unit's main source file. This patch fixes that, so that the output attributes the lines in subsequent functions to the correct source files. a=jimblandy r=nealsid git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@373 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Linux dumper: Delete non-functional stack parameter size computation.jimblandy@gmail.com2009-08-051-20/+1
| | | | | | | | | | Delete code to compute function stack parameter size. It never did anything. a=jimblandy r=nealsid git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@372 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Linux dumper: Let LineInfo structures point directly to their SourceLineInfo ↵jimblandy@gmail.com2009-08-051-141/+147
| | | | | | | | | | | | | | | | | | | | | structures Let LineInfo structures point directly to their SourceLineInfo structures, rather than holding the index of the file's name in the .stabstr section in the early phases, and then later the holding source_id of the file. This is another step in the process of moving STABS-specific values out of the types that represent the breakpad symbol data. When we're done, the non-STABS structures will be something that we can populate with both STABS and DWARF data --- or at least it will be more easily replaced with such. a=jimblandy r=nealsid git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@371 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Linux dumper: Don't record file boundary addresses as null-name ↵jimblandy@gmail.com2009-07-301-17/+35
| | | | | | | | | | | | | | | | | | | | | | | | SourceFileInfoList entries. STABS information introduces a compilation unit with an N_SO entry whose address is the start address of the file and whose string is the name of the compilation unit's main source file. However, STABS entries can only hold one address, so STABS indicates the compilation unit's ending address with an N_SO entry whose name is empty. Currently, the dumper's data structures simply create SourceFileInfo structures with empty names for these end-of-unit N_SO entries. We want to remove STABS-specific characteristics from these structures so that we can replace them with an input-format-independent structure. This moves end-of-compilation-unit addresses out of the symbol table structure, and into their own list of boundary addresses. a=jimblandy r=nealsid git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@369 4c0a9323-5329-0410-9bdc-e9ce6186880e
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