| // Copyright (c) 2010 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. |
| |
| // Original author: Jim Blandy <jimb@mozilla.com> <jimb@red-bean.com> |
| |
| // dump_stabs_unittest.cc: Unit tests for DumpStabsHandler. |
| |
| #include <vector> |
| |
| #include "breakpad_googletest_includes.h" |
| #include "common/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()); |
| } |
| |
| // The GNU toolchain can omit functions that are not used; however, |
| // when it does so, it doesn't clean up the debugging information that |
| // refers to them. In STABS, this results in compilation units whose |
| // SO addresses are zero. |
| TEST(Omitted, Function) { |
| Module m("name", "os", "arch", "id"); |
| DumpStabsHandler h(&m); |
| |
| // The StartCompilationUnit and EndCompilationUnit calls may both have an |
| // address of zero if the compilation unit has had sections removed. |
| EXPECT_TRUE(h.StartCompilationUnit("compilation-unit", 0, "build-directory")); |
| EXPECT_TRUE(h.StartFunction("function", 0x2a133596)); |
| EXPECT_TRUE(h.EndFunction(0)); |
| EXPECT_TRUE(h.EndCompilationUnit(0)); |
| } |
| |
| // 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 |