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Add option to dump crash thread only

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Add minidump_stackwalk option to dump the crash thread only

Bug: 1129202

Change-Id: I1370b4dc972f76ba1d57fca083da7d486774e65a
Reviewed-on: https://chromium-review.googlesource.com/c/breakpad/breakpad/+/2762072
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
This commit is contained in:
Michael Bai 2021-03-30 14:49:20 -07:00 committed by Joshua Peraza
parent dff7d5afd5
commit 3bea2815bf
4 changed files with 29 additions and 15 deletions
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5
src/processor/microdump_stackwalk.cc
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@ -110,7 +110,10 @@ int PrintMicrodumpProcess(const Options& options) {
if (options.machine_readable) {
PrintProcessStateMachineReadable(process_state);
} else {
PrintProcessState(process_state, options.output_stack_contents, &resolver);
// Microdump has only one thread, |output_requesting_thread_only|'s value
// has no effect.
PrintProcessState(process_state, options.output_stack_contents,
/*output_requesting_thread_only=*/false, &resolver);
}
return 0;
}

13
src/processor/minidump_stackwalk.cc
View File

@ -57,6 +57,7 @@ namespace {
struct Options {
bool machine_readable;
bool output_stack_contents;
bool output_requesting_thread_only;
string minidump_file;
std::vector<string> symbol_paths;
@ -111,7 +112,8 @@ bool PrintMinidumpProcess(const Options& options) {
if (options.machine_readable) {
PrintProcessStateMachineReadable(process_state);
} else {
PrintProcessState(process_state, options.output_stack_contents, &resolver);
PrintProcessState(process_state, options.output_stack_contents,
options.output_requesting_thread_only, &resolver);
}
return true;
@ -128,7 +130,8 @@ static void Usage(int argc, const char *argv[], bool error) {
"Options:\n"
"\n"
" -m Output in machine-readable format\n"
" -s Output stack contents\n",
" -s Output stack contents\n"
" -c Output thread that causes crash or dump only\n",
google_breakpad::BaseName(argv[0]).c_str());
}
@ -137,14 +140,18 @@ static void SetupOptions(int argc, const char *argv[], Options* options) {
options->machine_readable = false;
options->output_stack_contents = false;
options->output_requesting_thread_only = false;
while ((ch = getopt(argc, (char * const*)argv, "hms")) != -1) {
while ((ch = getopt(argc, (char * const*)argv, "chms")) != -1) {
switch (ch) {
case 'h':
Usage(argc, argv, false);
exit(0);
break;
case 'c':
options->output_requesting_thread_only = true;
break;
case 'm':
options->machine_readable = true;
break;

25
src/processor/stackwalk_common.cc
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@ -786,6 +786,7 @@ static void PrintModulesMachineReadable(const CodeModules* modules) {
void PrintProcessState(const ProcessState& process_state,
bool output_stack_contents,
bool output_requesting_thread_only,
SourceLineResolverInterface* resolver) {
// Print OS and CPU information.
string cpu = process_state.system_info()->cpu;
@ -856,17 +857,19 @@ void PrintProcessState(const ProcessState& process_state,
process_state.modules(), resolver);
}
// Print all of the threads in the dump.
int thread_count = process_state.threads()->size();
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\n", thread_index);
PrintStack(process_state.threads()->at(thread_index), cpu,
output_stack_contents,
process_state.thread_memory_regions()->at(thread_index),
process_state.modules(), resolver);
if (!output_requesting_thread_only) {
// Print all of the threads in the dump.
int thread_count = process_state.threads()->size();
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\n", thread_index);
PrintStack(process_state.threads()->at(thread_index), cpu,
output_stack_contents,
process_state.thread_memory_regions()->at(thread_index),
process_state.modules(), resolver);
}
}
}

1
src/processor/stackwalk_common.h
View File

@ -42,6 +42,7 @@ class SourceLineResolverInterface;
void PrintProcessStateMachineReadable(const ProcessState& process_state);
void PrintProcessState(const ProcessState& process_state,
bool output_stack_contents,
bool output_requesting_thread_only,
SourceLineResolverInterface* resolver);
} // namespace google_breakpad