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catch_exception_tool: Show the thread ID, state flavor, and state count.

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For identity-carrying exceptions, the system-wide thread ID is shown.

For state-carrying exceptions, the flavor and old_state_count are shown.

R=rsesek@chromium.org

Review URL: https://codereview.chromium.org/581153002
This commit is contained in:
Mark Mentovai 2014-09-18 13:55:03 -04:00
parent 4d35ffa80e
commit 12b67422f9
1 changed files with 28 additions and 11 deletions
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39
tools/catch_exception_tool.cc
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@ -81,26 +81,27 @@ class ExceptionServer : public UniversalMachExcServer {
ExceptionBehaviorToString(
behavior, kUseFullName | kUnknownIsNumeric | kUseOr).c_str());
pid_t pid;
kern_return_t kr;
if (ExceptionBehaviorHasIdentity(behavior)) {
pid_t pid;
kr = pid_for_task(task, &pid);
if (kr != KERN_SUCCESS) {
MACH_LOG(ERROR, kr) << "pid_for_task";
return KERN_FAILURE;
}
fprintf(options_.file, "pid %d, ", pid);
} else {
pid = -1;
}
if (ExceptionBehaviorHasState(behavior)) {
// If this is a state-carrying exception, make new_state something valid.
memcpy(
new_state,
old_state,
std::min(old_state_count, *new_state_count) * sizeof(old_state[0]));
*new_state_count = old_state_count;
thread_identifier_info identifier_info;
mach_msg_type_number_t count = THREAD_IDENTIFIER_INFO_COUNT;
kr = thread_info(thread,
THREAD_IDENTIFIER_INFO,
reinterpret_cast<thread_info_t>(&identifier_info),
&count);
if (kr != KERN_SUCCESS) {
MACH_LOG(ERROR, kr) << "thread_info";
return KERN_FAILURE;
}
fprintf(options_.file, "thread %lld, ", identifier_info.thread_id);
}
fprintf(
@ -129,6 +130,22 @@ class ExceptionServer : public UniversalMachExcServer {
SignalToString(signal, kUseFullName | kUnknownIsNumeric).c_str());
}
if (ExceptionBehaviorHasState(behavior)) {
// If this is a state-carrying exception, make new_state something valid.
memcpy(
new_state,
old_state,
std::min(old_state_count, *new_state_count) * sizeof(old_state[0]));
*new_state_count = old_state_count;
std::string flavor_string =
ThreadStateFlavorToString(*flavor, kUseFullName | kUnknownIsNumeric);
fprintf(options_.file,
", flavor %s, old_state_count %d",
flavor_string.c_str(),
old_state_count);
}
fprintf(options_.file, "\n");
fflush(options_.file);