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Cleanup: Remove a useless check.

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Review URL: http://breakpad.appspot.com/174001

git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@670 4c0a9323-5329-0410-9bdc-e9ce6186880e
This commit is contained in:
thestig@chromium.org 2010-08-26 18:16:35 +00:00
parent 34d3a2e0f3
commit aadace2751
1 changed files with 6 additions and 8 deletions
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14
src/processor/stackwalker_amd64.cc
View file

@ -130,7 +130,7 @@ StackFrameAMD64 *StackwalkerAMD64::GetCallerByCFIFrameInfo(
last_frame->context, last_frame->context_validity,
&frame->context, &frame->context_validity))
return NULL;
// Make sure we recovered all the essentials.
static const int essentials = (StackFrameAMD64::CONTEXT_VALID_RIP
| StackFrameAMD64::CONTEXT_VALID_RSP);
@ -151,17 +151,15 @@ StackFrame* StackwalkerAMD64::GetCallerFrame(const CallStack *stack) {
scoped_ptr<StackFrameAMD64> new_frame;
// If we have DWARF CFI information, use it.
if (!new_frame.get()) {
scoped_ptr<CFIFrameInfo> cfi_frame_info(resolver_
->FindCFIFrameInfo(last_frame));
if (cfi_frame_info.get())
new_frame.reset(GetCallerByCFIFrameInfo(frames, cfi_frame_info.get()));
}
scoped_ptr<CFIFrameInfo> cfi_frame_info(
resolver_->FindCFIFrameInfo(last_frame));
if (cfi_frame_info.get())
new_frame.reset(GetCallerByCFIFrameInfo(frames, cfi_frame_info.get()));
// If nothing worked, tell the caller.
if (!new_frame.get())
return NULL;
// Treat an instruction address of 0 as end-of-stack.
if (new_frame->context.rip == 0)
return NULL;