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Let x86 stackwalker scan stack in cases where program evaluation fails. Original patch by Jeff Muizelaar <jmuizelaar@mozilla.com> with some changes by me. r=mento at http://breakpad.appspot.com/32003/show

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git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@409 4c0a9323-5329-0410-9bdc-e9ce6186880e
This commit is contained in:
ted.mielczarek 2009-10-08 14:21:50 +00:00
parent 760d66430e
commit 8d70618ffc
7 changed files with 161 additions and 27 deletions
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13
src/processor/stackwalker_x86.h
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@ -70,6 +70,19 @@ class StackwalkerX86 : public Stackwalker {
const CallStack *stack,
const vector< linked_ptr<StackFrameInfo> > &stack_frame_info);
// Scan the stack starting at location_start, looking for an address
// that looks like a valid instruction pointer. Addresses must
// 1) be contained in the current stack memory
// 2) pass the checks in Stackwalker::InstructionAddressSeemsValid
//
// Returns true if a valid-looking instruction pointer was found.
// When returning true, sets location_found to the address at which
// the value was found, and eip_found to the value contained at that
// location in memory.
bool ScanForReturnAddress(u_int32_t location_start,
u_int32_t &location_found,
u_int32_t &eip_found);
// Stores the CPU context corresponding to the innermost stack frame to
// be returned by GetContextFrame.
const MDRawContextX86 *context_;