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Remove tools/mac/crash_report

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This is pretty rotted and unmaintained, and nobody seems to be using it.

Bug: None
Change-Id: I965393dd75d995d5c7d55bea6d9b256e89a7421b
Reviewed-on: https://chromium-review.googlesource.com/c/breakpad/breakpad/+/4107469
Reviewed-by: Mark Mentovai <mark@chromium.org>
This commit is contained in:
Leonard Grey 2022-12-14 13:04:49 -05:00
parent 9acaa082c8
commit 33b8438986
4 changed files with 0 additions and 1458 deletions
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417
src/tools/mac/crash_report/crash_report.mm
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@ -1,417 +0,0 @@
// Copyright 2010 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.
// crash_report.mm: Convert the contents of a minidump into a format that
// looks more like Apple's CrashReporter format
#include <unistd.h>
#include <mach/machine.h>
#include <mach-o/arch.h>
#include <string>
#include <Foundation/Foundation.h>
#include "common/scoped_ptr.h"
#include "google_breakpad/processor/basic_source_line_resolver.h"
#include "google_breakpad/processor/call_stack.h"
#include "google_breakpad/processor/code_module.h"
#include "google_breakpad/processor/minidump.h"
#include "google_breakpad/processor/minidump_processor.h"
#include "google_breakpad/processor/process_state.h"
#include "google_breakpad/processor/stack_frame_cpu.h"
#include "google_breakpad/processor/system_info.h"
#include "processor/pathname_stripper.h"
#include "processor/simple_symbol_supplier.h"
#include "on_demand_symbol_supplier.h"
using std::string;
using google_breakpad::BasicSourceLineResolver;
using google_breakpad::CallStack;
using google_breakpad::CodeModule;
using google_breakpad::CodeModules;
using google_breakpad::Minidump;
using google_breakpad::MinidumpProcessor;
using google_breakpad::OnDemandSymbolSupplier;
using google_breakpad::PathnameStripper;
using google_breakpad::ProcessState;
using google_breakpad::scoped_ptr;
using google_breakpad::StackFrame;
using google_breakpad::StackFramePPC;
using google_breakpad::StackFrameX86;
using google_breakpad::SystemInfo;
typedef struct {
NSString *minidumpPath;
NSString *searchDir;
NSString *symbolSearchDir;
BOOL printThreadMemory;
} Options;
//=============================================================================
static int PrintRegister(const char *name, u_int32_t value, int sequence) {
if (sequence % 4 == 0) {
printf("\n");
}
printf("%6s = 0x%08x ", name, value);
return ++sequence;
}
//=============================================================================
static void PrintStack(const CallStack *stack, const string &cpu) {
size_t frame_count = stack->frames()->size();
char buffer[1024];
for (size_t frame_index = 0; frame_index < frame_count; ++frame_index) {
const StackFrame *frame = stack->frames()->at(frame_index);
const CodeModule *module = frame->module;
printf("%2zu ", frame_index);
if (module) {
// Module name (20 chars max)
strcpy(buffer, PathnameStripper::File(module->code_file()).c_str());
int maxStr = 20;
buffer[maxStr] = 0;
printf("%-*s", maxStr, buffer);
strcpy(buffer, module->version().c_str());
buffer[maxStr] = 0;
printf("%-*s",maxStr, buffer);
u_int64_t instruction = frame->instruction;
// PPC only: Adjust the instruction to match that of Crash reporter. The
// instruction listed is actually the return address. See the detailed
// comments in stackwalker_ppc.cc for more information.
if (cpu == "ppc" && frame_index)
instruction += 4;
printf(" 0x%08llx ", instruction);
// Function name
if (!frame->function_name.empty()) {
printf("%s", frame->function_name.c_str());
if (!frame->source_file_name.empty()) {
string source_file = PathnameStripper::File(frame->source_file_name);
printf(" + 0x%llx (%s:%d)",
instruction - frame->source_line_base,
source_file.c_str(), frame->source_line);
} else {
printf(" + 0x%llx", instruction - frame->function_base);
}
}
}
printf("\n");
}
}
//=============================================================================
static void PrintRegisters(const CallStack *stack, const string &cpu) {
int sequence = 0;
const StackFrame *frame = stack->frames()->at(0);
if (cpu == "x86") {
const StackFrameX86 *frame_x86 =
reinterpret_cast<const StackFrameX86*>(frame);
if (frame_x86->context_validity & StackFrameX86::CONTEXT_VALID_EIP)
sequence = PrintRegister("eip", frame_x86->context.eip, sequence);
if (frame_x86->context_validity & StackFrameX86::CONTEXT_VALID_ESP)
sequence = PrintRegister("esp", frame_x86->context.esp, sequence);
if (frame_x86->context_validity & StackFrameX86::CONTEXT_VALID_EBP)
sequence = PrintRegister("ebp", frame_x86->context.ebp, sequence);
if (frame_x86->context_validity & StackFrameX86::CONTEXT_VALID_EBX)
sequence = PrintRegister("ebx", frame_x86->context.ebx, sequence);
if (frame_x86->context_validity & StackFrameX86::CONTEXT_VALID_ESI)
sequence = PrintRegister("esi", frame_x86->context.esi, sequence);
if (frame_x86->context_validity & StackFrameX86::CONTEXT_VALID_EDI)
sequence = PrintRegister("edi", frame_x86->context.edi, sequence);
if (frame_x86->context_validity == StackFrameX86::CONTEXT_VALID_ALL) {
sequence = PrintRegister("eax", frame_x86->context.eax, sequence);
sequence = PrintRegister("ecx", frame_x86->context.ecx, sequence);
sequence = PrintRegister("edx", frame_x86->context.edx, sequence);
sequence = PrintRegister("efl", frame_x86->context.eflags, sequence);
}
} else if (cpu == "ppc") {
const StackFramePPC *frame_ppc =
reinterpret_cast<const StackFramePPC*>(frame);
if ((frame_ppc->context_validity & StackFramePPC::CONTEXT_VALID_ALL) ==
StackFramePPC::CONTEXT_VALID_ALL) {
sequence = PrintRegister("srr0", frame_ppc->context.srr0, sequence);
sequence = PrintRegister("srr1", frame_ppc->context.srr1, sequence);
sequence = PrintRegister("cr", frame_ppc->context.cr, sequence);
sequence = PrintRegister("xer", frame_ppc->context.xer, sequence);
sequence = PrintRegister("lr", frame_ppc->context.lr, sequence);
sequence = PrintRegister("ctr", frame_ppc->context.ctr, sequence);
sequence = PrintRegister("mq", frame_ppc->context.mq, sequence);
sequence = PrintRegister("vrsave", frame_ppc->context.vrsave, sequence);
sequence = 0;
char buffer[5];
for (int i = 0; i < MD_CONTEXT_PPC_GPR_COUNT; ++i) {
sprintf(buffer, "r%d", i);
sequence = PrintRegister(buffer, frame_ppc->context.gpr[i], sequence);
}
} else {
if (frame_ppc->context_validity & StackFramePPC::CONTEXT_VALID_SRR0)
sequence = PrintRegister("srr0", frame_ppc->context.srr0, sequence);
if (frame_ppc->context_validity & StackFramePPC::CONTEXT_VALID_GPR1)
sequence = PrintRegister("r1", frame_ppc->context.gpr[1], sequence);
}
}
printf("\n");
}
static void PrintModules(const CodeModules *modules) {
if (!modules)
return;
printf("\n");
printf("Loaded modules:\n");
u_int64_t main_address = 0;
const CodeModule *main_module = modules->GetMainModule();
if (main_module) {
main_address = main_module->base_address();
}
unsigned int module_count = modules->module_count();
for (unsigned int module_sequence = 0;
module_sequence < module_count;
++module_sequence) {
const CodeModule *module = modules->GetModuleAtSequence(module_sequence);
assert(module);
u_int64_t base_address = module->base_address();
printf("0x%08llx - 0x%08llx %s %s%s %s\n",
base_address, base_address + module->size() - 1,
PathnameStripper::File(module->code_file()).c_str(),
module->version().empty() ? "???" : module->version().c_str(),
main_module != NULL && base_address == main_address ?
" (main)" : "",
module->code_file().c_str());
}
}
static void ProcessSingleReport(Options *options, NSString *file_path) {
string minidump_file([file_path fileSystemRepresentation]);
BasicSourceLineResolver resolver;
string search_dir = options->searchDir ?
[options->searchDir fileSystemRepresentation] : "";
string symbol_search_dir = options->symbolSearchDir ?
[options->symbolSearchDir fileSystemRepresentation] : "";
scoped_ptr<OnDemandSymbolSupplier> symbol_supplier(
new OnDemandSymbolSupplier(search_dir, symbol_search_dir));
scoped_ptr<MinidumpProcessor>
minidump_processor(new MinidumpProcessor(symbol_supplier.get(), &resolver));
ProcessState process_state;
scoped_ptr<Minidump> dump(new google_breakpad::Minidump(minidump_file));
if (!dump->Read()) {
fprintf(stderr, "Minidump %s could not be read\n", dump->path().c_str());
return;
}
if (minidump_processor->Process(dump.get(), &process_state) !=
google_breakpad::PROCESS_OK) {
fprintf(stderr, "MinidumpProcessor::Process failed\n");
return;
}
const SystemInfo *system_info = process_state.system_info();
string cpu = system_info->cpu;
// Convert the time to a string
u_int32_t time_date_stamp = process_state.time_date_stamp();
struct tm timestruct;
gmtime_r(reinterpret_cast<time_t*>(&time_date_stamp), &timestruct);
char timestr[20];
strftime(timestr, 20, "%Y-%m-%d %H:%M:%S", &timestruct);
printf("Date: %s GMT\n", timestr);
printf("Operating system: %s (%s)\n", system_info->os.c_str(),
system_info->os_version.c_str());
printf("Architecture: %s\n", cpu.c_str());
if (process_state.crashed()) {
printf("Crash reason: %s\n", process_state.crash_reason().c_str());
printf("Crash address: 0x%llx\n", process_state.crash_address());
} else {
printf("No crash\n");
}
int requesting_thread = process_state.requesting_thread();
if (requesting_thread != -1) {
printf("\n");
printf("Thread %d (%s)",
requesting_thread,
process_state.crashed() ? "crashed" :
"requested dump, did not crash");
string requesting_thread_name = process_state.thread_names()->at(requesting_thread);
if (!requesting_thread_name.empty()) {
printf(" (name: %s)", requesting_thread_name.c_str());
}
printf("\n");
PrintStack(process_state.threads()->at(requesting_thread), cpu);
}
// Print all of the threads in the dump.
int thread_count = static_cast<int>(process_state.threads()->size());
const std::vector<google_breakpad::MemoryRegion*>
*thread_memory_regions = process_state.thread_memory_regions();
for (int thread_index = 0; thread_index < thread_count; ++thread_index) {
if (thread_index != requesting_thread) {
// Don't print the crash thread again, it was already printed.
printf("\n");
printf("Thread %d", thread_index);
string thread_name = process_state.thread_names()->at(thread_index);
if (!thread_name.empty()) {
printf(" (name: %s)", thread_name.c_str());
}
printf("\n");
PrintStack(process_state.threads()->at(thread_index), cpu);
google_breakpad::MemoryRegion *thread_stack_bytes =
thread_memory_regions->at(thread_index);
if (options->printThreadMemory) {
thread_stack_bytes->Print();
}
}
}
// Print the crashed registers
if (requesting_thread != -1) {
printf("\nThread %d:", requesting_thread);
PrintRegisters(process_state.threads()->at(requesting_thread), cpu);
}
// Print information about modules
PrintModules(process_state.modules());
}
//=============================================================================
static void Start(Options *options) {
NSFileManager *manager = [NSFileManager defaultManager];
NSString *minidump_path = options->minidumpPath;
BOOL is_dir = NO;
BOOL file_exists = [manager fileExistsAtPath:minidump_path
isDirectory:&is_dir];
if (file_exists && is_dir) {
NSDirectoryEnumerator *enumerator =
[manager enumeratorAtPath:minidump_path];
NSString *current_file = nil;
while ((current_file = [enumerator nextObject])) {
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
if ([[current_file pathExtension] isEqualTo:@"dmp"]) {
printf("Attempting to process report: %s\n",
[current_file cStringUsingEncoding:NSASCIIStringEncoding]);
NSString *full_path =
[minidump_path stringByAppendingPathComponent:current_file];
ProcessSingleReport(options, full_path);
}
[pool release];
}
} else if (file_exists) {
ProcessSingleReport(options, minidump_path);
}
}
//=============================================================================
static void Usage(int argc, const char *argv[]) {
fprintf(stderr, "Convert a minidump to a crash report. Breakpad symbol "
"files will be used (or created if missing) in /tmp.\n"
"If a symbol-file-search-dir is specified, any symbol "
"files in it will be used instead of being loaded from "
"modules on disk.\n"
"If modules cannot be found at the paths stored in the "
"minidump file, they will be searched for at "
"<module-search-dir>/<path-in-minidump-file>.\n");
fprintf(stderr, "Usage: %s [-s module-search-dir] [-S symbol-file-search-dir] "
"minidump-file\n", argv[0]);
fprintf(stderr, "\t-s: Specify a search directory to use for missing modules\n"
"\t-S: Specify a search directory to use for symbol files\n"
"\t-t: Print thread stack memory in hex\n"
"\t-h: Usage\n"
"\t-?: Usage\n");
}
//=============================================================================
static void SetupOptions(int argc, const char *argv[], Options *options) {
extern int optind;
char ch;
while ((ch = getopt(argc, (char * const *)argv, "S:s:ht?")) != -1) {
switch (ch) {
case 's':
options->searchDir = [[NSFileManager defaultManager]
stringWithFileSystemRepresentation:optarg
length:strlen(optarg)];
break;
case 'S':
options->symbolSearchDir = [[NSFileManager defaultManager]
stringWithFileSystemRepresentation:optarg
length:strlen(optarg)];
break;
case 't':
options->printThreadMemory = YES;
break;
case 'h':
case '?':
Usage(argc, argv);
exit(1);
break;
}
}
if ((argc - optind) != 1) {
fprintf(stderr, "%s: Missing minidump file\n", argv[0]);
Usage(argc, argv);
exit(1);
}
options->minidumpPath = [[NSFileManager defaultManager]
stringWithFileSystemRepresentation:argv[optind]
length:strlen(argv[optind])];
}
//=============================================================================
int main (int argc, const char * argv[]) {
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
Options options;
bzero(&options, sizeof(Options));
SetupOptions(argc, argv, &options);
Start(&options);
[pool release];
return 0;
}

618
src/tools/mac/crash_report/crash_report.xcodeproj/project.pbxproj
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@ -1,618 +0,0 @@
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110
src/tools/mac/crash_report/on_demand_symbol_supplier.h
View File

@ -1,110 +0,0 @@
// Copyright 2006 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.
// on_demand_symbol_supplier.h: Provides a Symbol Supplier that will create
// a breakpad symbol file on demand.
#ifndef TOOLS_MAC_CRASH_REPORT_ON_DEMAND_SYMBOL_SUPPLIER_H__
#define TOOLS_MAC_CRASH_REPORT_ON_DEMAND_SYMBOL_SUPPLIER_H__
#include <map>
#include <string>
#include "google_breakpad/processor/symbol_supplier.h"
namespace google_breakpad {
using std::map;
using std::string;
class MinidumpModule;
class OnDemandSymbolSupplier : public SymbolSupplier {
public:
// |search_dir| is the directory to search for alternative symbols with
// the same name as the module in the minidump
OnDemandSymbolSupplier(const string& search_dir,
const string& symbol_search_dir);
virtual ~OnDemandSymbolSupplier() {}
// Returns the path to the symbol file for the given module.
virtual SymbolResult GetSymbolFile(const CodeModule* module,
const SystemInfo* system_info,
string* symbol_file);
// Returns the path to the symbol file for the given module.
virtual SymbolResult GetSymbolFile(const CodeModule* module,
const SystemInfo* system_info,
string* symbol_file,
string* symbol_data);
// Allocates data buffer on heap, and takes the ownership of
// the data buffer.
virtual SymbolResult GetCStringSymbolData(const CodeModule* module,
const SystemInfo* system_info,
string* symbol_file,
char** symbol_data,
size_t* symbol_data_size);
// Delete the data buffer allocated for module in GetCStringSymbolData().
virtual void FreeSymbolData(const CodeModule* module);
protected:
// Search directory
string search_dir_;
string symbol_search_dir_;
// When we create a symbol file for a module, save the name of the module
// and the path to that module's symbol file.
map<string, string> module_file_map_;
// Map of allocated data buffers, keyed by module->code_file().
map<string, char*> memory_buffers_;
// Return the name for |module| This will be the value used as the key
// to the |module_file_map_|.
string GetNameForModule(const CodeModule* module);
// Find the module on local system. If the module resides in a different
// location than the full path in the minidump, this will be the location
// used.
string GetLocalModulePath(const CodeModule* module);
// Return the full path for |module|.
string GetModulePath(const CodeModule* module);
// Return the path to the symbol file for |module|. If an empty string is
// returned, then |module| doesn't have a symbol file.
string GetModuleSymbolFile(const CodeModule* module);
// Generate the breakpad symbol file for |module|. Return true if successful.
// File is generated in /tmp.
bool GenerateSymbolFile(const CodeModule* module,
const SystemInfo* system_info);
};
} // namespace google_breakpad
#endif // TOOLS_MAC_CRASH_REPORT_ON_DEMAND_SYMBOL_SUPPLIER_H__

313
src/tools/mac/crash_report/on_demand_symbol_supplier.mm
View File

@ -1,313 +0,0 @@
// Copyright 2006 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.
#import <Foundation/Foundation.h>
#include <sys/stat.h>
#include <map>
#include <string>
#include <iostream>
#include <fstream>
#include <utility>
#include "google_breakpad/processor/basic_source_line_resolver.h"
#include "google_breakpad/processor/minidump.h"
#include "google_breakpad/processor/system_info.h"
#include "processor/pathname_stripper.h"
#include "on_demand_symbol_supplier.h"
#include "common/mac/dump_syms.h"
using std::map;
using std::string;
using google_breakpad::OnDemandSymbolSupplier;
using google_breakpad::PathnameStripper;
using google_breakpad::SymbolSupplier;
using google_breakpad::SystemInfo;
OnDemandSymbolSupplier::OnDemandSymbolSupplier(const string& search_dir,
const string& symbol_search_dir)
: search_dir_(search_dir) {
NSFileManager* mgr = [NSFileManager defaultManager];
size_t length = symbol_search_dir.length();
if (length) {
// Load all sym files in symbol_search_dir into our module_file_map
// A symbol file always starts with a line like this:
// MODULE mac x86 BBF0A8F9BEADDD2048E6464001CA193F0 GoogleDesktopDaemon
// or
// MODULE mac ppc BBF0A8F9BEADDD2048E6464001CA193F0 GoogleDesktopDaemon
const char* symbolSearchStr = symbol_search_dir.c_str();
NSString* symbolSearchPath =
[mgr stringWithFileSystemRepresentation:symbolSearchStr
length:strlen(symbolSearchStr)];
NSDirectoryEnumerator* dirEnum = [mgr enumeratorAtPath:symbolSearchPath];
NSString* fileName;
NSCharacterSet* hexSet =
[NSCharacterSet characterSetWithCharactersInString:@"0123456789ABCDEF"];
NSCharacterSet* newlineSet =
[NSCharacterSet characterSetWithCharactersInString:@"\r\n"];
while ((fileName = [dirEnum nextObject])) {
// Check to see what type of file we have
NSDictionary* attrib = [dirEnum fileAttributes];
NSString* fileType = [attrib objectForKey:NSFileType];
if ([fileType isEqualToString:NSFileTypeDirectory]) {
// Skip subdirectories
[dirEnum skipDescendents];
} else {
NSString* filePath = [symbolSearchPath stringByAppendingPathComponent:fileName];
NSString* dataStr = [NSString stringWithContentsOfFile:filePath encoding:NSUTF8StringEncoding error:NULL];
if (dataStr) {
// Check file to see if it is of appropriate type, and grab module
// name.
NSScanner* scanner = [NSScanner scannerWithString:dataStr];
BOOL goodScan = [scanner scanString:@"MODULE mac " intoString:nil];
if (goodScan) {
goodScan = ([scanner scanString:@"x86 " intoString:nil] ||
[scanner scanString:@"x86_64 " intoString:nil] ||
[scanner scanString:@"ppc " intoString:nil]);
if (goodScan) {
NSString* moduleID;
goodScan = [scanner scanCharactersFromSet:hexSet
intoString:&moduleID];
if (goodScan) {
// Module IDs are always 33 chars long
goodScan = [moduleID length] == 33;
if (goodScan) {
NSString* moduleName;
goodScan = [scanner scanUpToCharactersFromSet:newlineSet
intoString:&moduleName];
if (goodScan) {
goodScan = [moduleName length] > 0;
if (goodScan) {
const char* moduleNameStr = [moduleName UTF8String];
const char* filePathStr = [filePath fileSystemRepresentation];
// Map our file
module_file_map_[moduleNameStr] = filePathStr;
}
}
}
}
}
}
}
}
}
}
}
SymbolSupplier::SymbolResult
OnDemandSymbolSupplier::GetSymbolFile(const CodeModule* module,
const SystemInfo* system_info,
string* symbol_file) {
string path(GetModuleSymbolFile(module));
if (path.empty()) {
if (!GenerateSymbolFile(module, system_info))
return NOT_FOUND;
path = GetModuleSymbolFile(module);
}
if (path.empty())
return NOT_FOUND;
*symbol_file = path;
return FOUND;
}
SymbolSupplier::SymbolResult
OnDemandSymbolSupplier::GetSymbolFile(const CodeModule* module,
const SystemInfo* system_info,
string* symbol_file,
string* symbol_data) {
SymbolSupplier::SymbolResult s = GetSymbolFile(module,
system_info,
symbol_file);
if (s == FOUND) {
std::ifstream in(symbol_file->c_str());
getline(in, *symbol_data, std::string::traits_type::to_char_type(
std::string::traits_type::eof()));
in.close();
}
return s;
}
SymbolSupplier::SymbolResult
OnDemandSymbolSupplier::GetCStringSymbolData(const CodeModule* module,
const SystemInfo* system_info,
string* symbol_file,
char** symbol_data,
size_t* symbol_data_size) {
std::string symbol_data_string;
SymbolSupplier::SymbolResult result = GetSymbolFile(module,
system_info,
symbol_file,
&symbol_data_string);
if (result == FOUND) {
*symbol_data_size = symbol_data_string.size() + 1;
*symbol_data = new char[*symbol_data_size];
if (*symbol_data == NULL) {
// Should return INTERRUPT on memory allocation failure.
return INTERRUPT;
}
memcpy(*symbol_data, symbol_data_string.c_str(), symbol_data_string.size());
(*symbol_data)[symbol_data_string.size()] = '\0';
memory_buffers_.insert(make_pair(module->code_file(), *symbol_data));
}
return result;
}
void OnDemandSymbolSupplier::FreeSymbolData(const CodeModule* module) {
map<string, char*>::iterator it = memory_buffers_.find(module->code_file());
if (it != memory_buffers_.end()) {
delete [] it->second;
memory_buffers_.erase(it);
}
}
string OnDemandSymbolSupplier::GetLocalModulePath(const CodeModule* module) {
NSFileManager* mgr = [NSFileManager defaultManager];
const char* moduleStr = module->code_file().c_str();
NSString* modulePath =
[mgr stringWithFileSystemRepresentation:moduleStr length:strlen(moduleStr)];
const char* searchStr = search_dir_.c_str();
NSString* searchDir =
[mgr stringWithFileSystemRepresentation:searchStr length:strlen(searchStr)];
if ([mgr fileExistsAtPath:modulePath])
return module->code_file();
// If the module is not found, try to start appending the components to the
// search string and stop if a file (not dir) is found or all components
// have been appended
NSArray* pathComponents = [modulePath componentsSeparatedByString:@"/"];
size_t count = [pathComponents count];
NSMutableString* path = [NSMutableString string];
for (size_t i = 0; i < count; ++i) {
[path setString:searchDir];
for (size_t j = 0; j < i + 1; ++j) {
size_t idx = count - 1 - i + j;
[path appendFormat:@"/%@", [pathComponents objectAtIndex:idx]];
}
BOOL isDir;
if ([mgr fileExistsAtPath:path isDirectory:&isDir] && (!isDir)) {
return [path fileSystemRepresentation];
}
}
return "";
}
string OnDemandSymbolSupplier::GetModulePath(const CodeModule* module) {
return module->code_file();
}
string OnDemandSymbolSupplier::GetNameForModule(const CodeModule* module) {
return PathnameStripper::File(module->code_file());
}
string OnDemandSymbolSupplier::GetModuleSymbolFile(const CodeModule* module) {
string name(GetNameForModule(module));
map<string, string>::iterator result = module_file_map_.find(name);
return (result == module_file_map_.end()) ? "" : (*result).second;
}
static float GetFileModificationTime(const char* path) {
float result = 0;
struct stat file_stat;
if (stat(path, &file_stat) == 0)
result = (float)file_stat.st_mtimespec.tv_sec +
(float)file_stat.st_mtimespec.tv_nsec / 1.0e9f;
return result;
}
bool OnDemandSymbolSupplier::GenerateSymbolFile(const CodeModule* module,
const SystemInfo* system_info) {
bool result = true;
string name = GetNameForModule(module);
string module_path = GetLocalModulePath(module);
NSString* symbol_path = [NSString stringWithFormat:@"/tmp/%s.%s.sym",
name.c_str(), system_info->cpu.c_str()];
if (module_path.empty())
return false;
// Check if there's already a symbol file cached. Ensure that the file is
// newer than the module. Otherwise, generate a new one.
BOOL generate_file = YES;
if ([[NSFileManager defaultManager] fileExistsAtPath:symbol_path]) {
// Check if the module file is newer than the saved symbols
float cache_time =
GetFileModificationTime([symbol_path fileSystemRepresentation]);
float module_time =
GetFileModificationTime(module_path.c_str());
if (cache_time > module_time)
generate_file = NO;
}
if (generate_file) {
DumpSymbols dump(ALL_SYMBOL_DATA, false);
if (dump.Read(module_path)) {
// What Breakpad calls "x86" should be given to the system as "i386".
std::string architecture;
if (system_info->cpu.compare("x86") == 0) {
architecture = "i386";
} else {
architecture = system_info->cpu;
}
if (dump.SetArchitecture(architecture)) {
std::fstream file([symbol_path fileSystemRepresentation],
std::ios_base::out | std::ios_base::trunc);
dump.WriteSymbolFile(file);
} else {
printf("Architecture %s not available for %s\n",
system_info->cpu.c_str(), name.c_str());
result = false;
}
} else {
printf("Unable to open %s\n", module_path.c_str());
result = false;
}
}
// Add the mapping
if (result)
module_file_map_[name] = [symbol_path fileSystemRepresentation];
return result;
}