diff options
Diffstat (limited to 'src/common')
-rw-r--r-- | src/common/linux/dump_stabs_unittest.cc | 175 |
1 files changed, 175 insertions, 0 deletions
diff --git a/src/common/linux/dump_stabs_unittest.cc b/src/common/linux/dump_stabs_unittest.cc new file mode 100644 index 00000000..ca09f43c --- /dev/null +++ b/src/common/linux/dump_stabs_unittest.cc @@ -0,0 +1,175 @@ +// 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. + +// dump_stabs_unittest.cc: Unit tests for DumpStabsHandler. + +#include <vector> + +#include "breakpad_googletest_includes.h" +#include "common/linux/dump_stabs.h" + +using google_breakpad::DumpStabsHandler; +using google_breakpad::Module; +using std::vector; + +TEST(DumpStabsHandler, SimpleCU) { + Module m("name", "os", "arch", "id"); + DumpStabsHandler h(&m); + + // Feed in a simple compilation unit that defines a function with + // one line. + EXPECT_TRUE(h.StartCompilationUnit("compilation-unit", 0x9f4d1271e50db93bLL, + "build-directory")); + EXPECT_TRUE(h.StartFunction("function", 0xfde4abbed390c394LL)); + EXPECT_TRUE(h.Line(0xfde4abbed390c394LL, "source-file-name", 174823314)); + EXPECT_TRUE(h.EndFunction(0xfde4abbed390c3a4LL)); + EXPECT_TRUE(h.EndCompilationUnit(0xfee4abbed390c3a4LL)); + h.Finalize(); + + // Now check to see what has been added to the Module. + Module::File *file = m.FindExistingFile("source-file-name"); + ASSERT_TRUE(file != NULL); + + vector<Module::Function *> functions; + m.GetFunctions(&functions, functions.end()); + ASSERT_EQ((size_t) 1, functions.size()); + Module::Function *function = functions[0]; + EXPECT_STREQ("function", function->name_.c_str()); + EXPECT_EQ(0xfde4abbed390c394LL, function->address_); + EXPECT_EQ(0x10U, function->size_); + EXPECT_EQ(0U, function->parameter_size_); + ASSERT_EQ((size_t) 1, function->lines_.size()); + Module::Line *line = &function->lines_[0]; + EXPECT_EQ(0xfde4abbed390c394LL, line->address_); + EXPECT_EQ(0x10U, line->size_); // derived from EndFunction + EXPECT_TRUE(line->file_ == file); + EXPECT_EQ(174823314, line->number_); +} + +TEST(InferSizes, LineSize) { + Module m("name", "os", "arch", "id"); + DumpStabsHandler h(&m); + + // Feed in a simple compilation unit that defines a function with + // one line. + EXPECT_TRUE(h.StartCompilationUnit("compilation-unit", 0xb4513962eff94e92LL, + "build-directory")); + EXPECT_TRUE(h.StartFunction("function", 0xb4513962eff94e92LL)); + EXPECT_TRUE(h.Line(0xb4513962eff94e92LL, "source-file-name-1", 77396614)); + EXPECT_TRUE(h.Line(0xb4513963eff94e92LL, "source-file-name-2", 87660088)); + EXPECT_TRUE(h.EndFunction(0)); // unknown function end address + EXPECT_TRUE(h.EndCompilationUnit(0)); // unknown CU end address + EXPECT_TRUE(h.StartCompilationUnit("compilation-unit-2", 0xb4523963eff94e92LL, + "build-directory-2")); // next boundary + EXPECT_TRUE(h.EndCompilationUnit(0)); + h.Finalize(); + + // Now check to see what has been added to the Module. + Module::File *file1 = m.FindExistingFile("source-file-name-1"); + ASSERT_TRUE(file1 != NULL); + Module::File *file2 = m.FindExistingFile("source-file-name-2"); + ASSERT_TRUE(file2 != NULL); + + vector<Module::Function *> functions; + m.GetFunctions(&functions, functions.end()); + ASSERT_EQ((size_t) 1, functions.size()); + + Module::Function *function = functions[0]; + EXPECT_STREQ("function", function->name_.c_str()); + EXPECT_EQ(0xb4513962eff94e92LL, function->address_); + EXPECT_EQ(0x1000100000000ULL, function->size_); // inferred from CU end + EXPECT_EQ(0U, function->parameter_size_); + ASSERT_EQ((size_t) 2, function->lines_.size()); + + Module::Line *line1 = &function->lines_[0]; + EXPECT_EQ(0xb4513962eff94e92LL, line1->address_); + EXPECT_EQ(0x100000000ULL, line1->size_); // derived from EndFunction + EXPECT_TRUE(line1->file_ == file1); + EXPECT_EQ(77396614, line1->number_); + + Module::Line *line2 = &function->lines_[1]; + EXPECT_EQ(0xb4513963eff94e92LL, line2->address_); + EXPECT_EQ(0x1000000000000ULL, line2->size_); // derived from EndFunction + EXPECT_TRUE(line2->file_ == file2); + EXPECT_EQ(87660088, line2->number_); +} + +TEST(FunctionNames, Mangled) { + Module m("name", "os", "arch", "id"); + DumpStabsHandler h(&m); + + // Compilation unit with one function, mangled name. + EXPECT_TRUE(h.StartCompilationUnit("compilation-unit", 0xf2cfda63cef7f46cLL, + "build-directory")); + EXPECT_TRUE(h.StartFunction("_ZNSt6vectorIySaIyEE9push_backERKy", + 0xf2cfda63cef7f46dLL)); + EXPECT_TRUE(h.EndFunction(0)); + EXPECT_TRUE(h.EndCompilationUnit(0)); + + h.Finalize(); + + // Now check to see what has been added to the Module. + Module::File *file = m.FindExistingFile("compilation-unit"); + ASSERT_TRUE(file != NULL); + + vector<Module::Function *> functions; + m.GetFunctions(&functions, functions.end()); + ASSERT_EQ(1U, functions.size()); + + Module::Function *function = functions[0]; + // This is GCC-specific, but we shouldn't be seeing STABS data anywhere + // but Linux. + EXPECT_STREQ("std::vector<unsigned long long, " + "std::allocator<unsigned long long> >::" + "push_back(unsigned long long const&)", + function->name_.c_str()); + EXPECT_EQ(0xf2cfda63cef7f46dLL, function->address_); + EXPECT_LT(0U, function->size_); // should have used dummy size + EXPECT_EQ(0U, function->parameter_size_); + ASSERT_EQ(0U, function->lines_.size()); +} + +// TODO --- if we actually cared about STABS. Even without these we've +// got full coverage of non-failure source lines in dump_stabs.cc. + +// Line size from next line +// Line size from function end +// Line size from next function start +// line size from cu end +// line size from next cu start +// fallback size is something plausible + +// function size from function end +// function size from next function start +// function size from cu end +// function size from next cu start +// fallback size is something plausible + +// omitting functions outside the compilation unit's address range +// zero-line, one-line, many-line functions |