diff options
Diffstat (limited to 'externals/breakpad/src/tools/mac/dump_syms/dump_syms_tool.cc')
| -rw-r--r-- | externals/breakpad/src/tools/mac/dump_syms/dump_syms_tool.cc | 340 |
1 files changed, 0 insertions, 340 deletions
diff --git a/externals/breakpad/src/tools/mac/dump_syms/dump_syms_tool.cc b/externals/breakpad/src/tools/mac/dump_syms/dump_syms_tool.cc deleted file mode 100644 index 9fb8d13f2d..0000000000 --- a/externals/breakpad/src/tools/mac/dump_syms/dump_syms_tool.cc +++ /dev/null @@ -1,340 +0,0 @@ -// -*- mode: c++ -*- - -// Copyright 2011 Google LLC -// -// 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 LLC 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_syms_tool.cc: Command line tool that uses the DumpSymbols class. -// TODO(waylonis): accept stdin - -#ifdef HAVE_CONFIG_H -#include <config.h> // Must come first -#endif - -#include <mach-o/arch.h> -#include <unistd.h> - -#include <algorithm> -#include <iostream> -#include <memory> -#include <utility> -#include <vector> - -#include "common/mac/dump_syms.h" -#include "common/mac/arch_utilities.h" -#include "common/mac/macho_utilities.h" -#include "common/scoped_ptr.h" - -using google_breakpad::DumpSymbols; -using google_breakpad::Module; -using google_breakpad::scoped_ptr; -using std::vector; - -struct Options { - Options() - : srcPath(), - dsymPath(), - arch(), - header_only(false), - cfi(true), - handle_inter_cu_refs(true), - handle_inlines(false), - enable_multiple(false), - module_name(), - prefer_extern_name(false) {} - - string srcPath; - string dsymPath; - std::optional<ArchInfo> arch; - bool header_only; - bool cfi; - bool handle_inter_cu_refs; - bool handle_inlines; - bool enable_multiple; - string module_name; - bool prefer_extern_name; -}; - -static bool StackFrameEntryComparator(const Module::StackFrameEntry* a, - const Module::StackFrameEntry* b) { - return a->address < b->address; -} - -// Copy the CFI data from |from_module| into |to_module|, for any non- -// overlapping ranges. -static void CopyCFIDataBetweenModules(Module* to_module, - const Module* from_module) { - typedef vector<Module::StackFrameEntry*>::const_iterator Iterator; - - // Get the CFI data from both the source and destination modules and ensure - // it is sorted by start address. - vector<Module::StackFrameEntry*> from_data; - from_module->GetStackFrameEntries(&from_data); - std::sort(from_data.begin(), from_data.end(), &StackFrameEntryComparator); - - vector<Module::StackFrameEntry*> to_data; - to_module->GetStackFrameEntries(&to_data); - std::sort(to_data.begin(), to_data.end(), &StackFrameEntryComparator); - - Iterator to_it = to_data.begin(); - - for (Iterator it = from_data.begin(); it != from_data.end(); ++it) { - Module::StackFrameEntry* from_entry = *it; - Module::Address from_entry_end = from_entry->address + from_entry->size; - - // Find the first CFI record in the |to_module| that does not have an - // address less than the entry to be copied. - while (to_it != to_data.end()) { - if (from_entry->address > (*to_it)->address) - ++to_it; - else - break; - } - - // If the entry does not overlap, then it is safe to copy to |to_module|. - if (to_it == to_data.end() || (from_entry->address < (*to_it)->address && - from_entry_end < (*to_it)->address)) { - to_module->AddStackFrameEntry( - std::make_unique<Module::StackFrameEntry>(*from_entry)); - } - } -} - -static bool SetArchitecture(DumpSymbols& dump_symbols, - const ArchInfo& arch, - const std::string& filename) { - if (!dump_symbols.SetArchitecture(arch)) { - fprintf(stderr, "%s: no architecture '%s' is present in file.\n", - filename.c_str(), - GetNameFromCPUType(arch.cputype, arch.cpusubtype)); - size_t available_size; - const SuperFatArch* available = - dump_symbols.AvailableArchitectures(&available_size); - if (available_size == 1) - fprintf(stderr, "the file's architecture is: "); - else - fprintf(stderr, "architectures present in the file are:\n"); - for (size_t i = 0; i < available_size; i++) { - const SuperFatArch* arch = &available[i]; - fprintf(stderr, "%s\n", - GetNameFromCPUType(arch->cputype, arch->cpusubtype)); - } - return false; - } - return true; -} - -static bool Start(const Options& options) { - SymbolData symbol_data = - (options.handle_inlines ? INLINES : NO_DATA) | - (options.cfi ? CFI : NO_DATA) | SYMBOLS_AND_FILES; - DumpSymbols dump_symbols(symbol_data, options.handle_inter_cu_refs, - options.enable_multiple, options.module_name, - options.prefer_extern_name); - - // For x86_64 binaries, the CFI data is in the __TEXT,__eh_frame of the - // Mach-O file, which is not copied into the dSYM. Whereas in i386, the CFI - // data is in the __DWARF,__debug_frame section, which is moved into the - // dSYM. Therefore, to get x86_64 CFI data, dump_syms needs to look at both - // the dSYM and the Mach-O file. If both paths are present and CFI was - // requested, then consider the Module as "split" and dump all the debug data - // from the primary debug info file, the dSYM, and then dump additional CFI - // data from the source Mach-O file. - bool split_module = - !options.dsymPath.empty() && !options.srcPath.empty() && options.cfi; - const string& primary_file = - split_module ? options.dsymPath : options.srcPath; - - if (!dump_symbols.Read(primary_file)) - return false; - - if (options.arch && - !SetArchitecture(dump_symbols, *options.arch, primary_file)) { - return false; - } - - if (options.header_only) - return dump_symbols.WriteSymbolFileHeader(std::cout); - - // Read the primary file into a Breakpad Module. - Module* module = NULL; - if (!dump_symbols.ReadSymbolData(&module)) - return false; - scoped_ptr<Module> scoped_module(module); - - // If this is a split module, read the secondary Mach-O file, from which the - // CFI data will be extracted. - if (split_module && primary_file == options.dsymPath) { - if (!dump_symbols.Read(options.srcPath)) - return false; - - if (options.arch && - !SetArchitecture(dump_symbols, *options.arch, options.srcPath)) { - return false; - } - Module* cfi_module = NULL; - if (!dump_symbols.ReadSymbolData(&cfi_module)) - return false; - scoped_ptr<Module> scoped_cfi_module(cfi_module); - - bool name_matches; - if (!options.module_name.empty()) { - // Ignore the basename of the dSYM and binary and use the passed-in module - // name. - name_matches = true; - } else { - name_matches = cfi_module->name() == module->name(); - } - - // Ensure that the modules are for the same debug code file. - if (!name_matches || cfi_module->os() != module->os() || - cfi_module->architecture() != module->architecture() || - cfi_module->identifier() != module->identifier()) { - fprintf(stderr, "Cannot generate a symbol file from split sources that do" - " not match.\n"); - if (!name_matches) { - fprintf(stderr, "Name mismatch: binary=[%s], dSYM=[%s]\n", - cfi_module->name().c_str(), module->name().c_str()); - } - if (cfi_module->os() != module->os()) { - fprintf(stderr, "OS mismatch: binary=[%s], dSYM=[%s]\n", - cfi_module->os().c_str(), module->os().c_str()); - } - if (cfi_module->architecture() != module->architecture()) { - fprintf(stderr, "Architecture mismatch: binary=[%s], dSYM=[%s]\n", - cfi_module->architecture().c_str(), - module->architecture().c_str()); - } - if (cfi_module->identifier() != module->identifier()) { - fprintf(stderr, "Identifier mismatch: binary=[%s], dSYM=[%s]\n", - cfi_module->identifier().c_str(), module->identifier().c_str()); - } - return false; - } - - CopyCFIDataBetweenModules(module, cfi_module); - } - - return module->Write(std::cout, symbol_data); -} - -//============================================================================= -static void Usage(int argc, const char *argv[]) { - fprintf(stderr, "Output a Breakpad symbol file from a Mach-o file.\n"); - fprintf(stderr, - "Usage: %s [-a ARCHITECTURE] [-c] [-g dSYM path] " - "[-n MODULE] [-x] <Mach-o file>\n", - argv[0]); - fprintf(stderr, "\t-i: Output module header information only.\n"); - fprintf(stderr, "\t-a: Architecture type [default: native, or whatever is\n"); - fprintf(stderr, "\t in the file, if it contains only one architecture]\n"); - fprintf(stderr, "\t-g: Debug symbol file (dSYM) to dump in addition to the " - "Mach-o file\n"); - fprintf(stderr, "\t-c: Do not generate CFI section\n"); - fprintf(stderr, "\t-r: Do not handle inter-compilation unit references\n"); - fprintf(stderr, "\t-d: Generate INLINE and INLINE_ORIGIN records\n"); - fprintf(stderr, - "\t-m: Enable writing the optional 'm' field on FUNC " - "and PUBLIC, denoting multiple symbols for the address.\n"); - fprintf(stderr, - "\t-n: Use MODULE as the name of the module rather than \n" - "the basename of the Mach-O file/dSYM.\n"); - fprintf(stderr, - "\t-x: Prefer the PUBLIC (extern) name over the FUNC if\n" - "they do not match.\n"); - fprintf(stderr, "\t-h: Usage\n"); - fprintf(stderr, "\t-?: Usage\n"); -} - -//============================================================================= -static void SetupOptions(int argc, const char *argv[], Options *options) { - extern int optind; - signed char ch; - - while ((ch = getopt(argc, (char* const*)argv, "ia:g:crdm?hn:x")) != -1) { - switch (ch) { - case 'i': - options->header_only = true; - break; - case 'a': { - std::optional<ArchInfo> arch_info = GetArchInfoFromName(optarg); - if (!arch_info) { - fprintf(stderr, "%s: Invalid architecture: %s\n", argv[0], optarg); - Usage(argc, argv); - exit(1); - } - options->arch = arch_info; - break; - } - case 'g': - options->dsymPath = optarg; - break; - case 'c': - options->cfi = false; - break; - case 'r': - options->handle_inter_cu_refs = false; - break; - case 'd': - options->handle_inlines = true; - break; - case 'm': - options->enable_multiple = true; - break; - case 'n': - options->module_name = optarg; - break; - case 'x': - options->prefer_extern_name = true; - break; - case '?': - case 'h': - Usage(argc, argv); - exit(0); - break; - } - } - - if ((argc - optind) != 1) { - fprintf(stderr, "Must specify Mach-o file\n"); - Usage(argc, argv); - exit(1); - } - - options->srcPath = argv[optind]; -} - -//============================================================================= -int main (int argc, const char * argv[]) { - Options options; - bool result; - - SetupOptions(argc, argv, &options); - result = Start(options); - - return !result; -} |