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Issue 35001: Fallback to Thread Context on bad Exception Context

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git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@418 4c0a9323-5329-0410-9bdc-e9ce6186880e
This commit is contained in:
jschuh@chromium.org 2009-10-19 18:10:49 +00:00
parent a3043159f3
commit 5f4fa55598
2 changed files with 10 additions and 5 deletions
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9
src/processor/minidump.cc
View file

@ -608,8 +608,9 @@ bool MinidumpContext::Read(u_int32_t expected_size) {
}
default: {
// Unknown context type
BPLOG(ERROR) << "MinidumpContext unknown context type " <<
// Unknown context type - Don't log as an error yet. Let the
// caller work that out.
BPLOG(INFO) << "MinidumpContext unknown context type " <<
HexString(cpu_type);
return false;
break;
@ -2713,8 +2714,10 @@ MinidumpContext* MinidumpException::GetContext() {
scoped_ptr<MinidumpContext> context(new MinidumpContext(minidump_));
// Don't log as an error if we can still fall back on th thread's context
// (which must be possible if we got his far.)
if (!context->Read(exception_.thread_context.data_size)) {
BPLOG(ERROR) << "MinidumpException cannot read context";
BPLOG(INFO) << "MinidumpException cannot read context";
return NULL;
}

6
src/processor/minidump_processor.cc
View file

@ -169,8 +169,10 @@ ProcessResult MinidumpProcessor::Process(
// of the thread's own context. For the crashed thread, the thread's
// own context is the state inside the exception handler. Using it
// would not result in the expected stack trace from the time of the
// crash.
context = exception->GetContext();
// crash. If the exception context is invalid, however, we fall back
// on the thread context.
MinidumpContext * ctx = exception->GetContext();
context = ctx ? ctx : thread->GetContext();
}
}