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sanitizer_stacktrace.cc (GetCanonicFrame): Assume we compiled code with GCC when extracting the caller PC for ARM if...

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libsanitizer/

	* sanitizer_common/sanitizer_stacktrace.cc (GetCanonicFrame): Assume we
	compiled code with GCC when extracting the caller PC for ARM if no
	valid frame pointer is available.

From-SVN: r241980
This commit is contained in:
Maxim Ostapenko 2016-11-08 22:07:50 +00:00 • committed by Maxim Ostapenko
parent 103c4f759a
commit 789306de0f
2 changed files with 8 additions and 2 deletions
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6
libsanitizer/ChangeLog
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@ -1,3 +1,9 @@
2016-11-09 Maxim Ostapenko <m.ostapenko@samsung.com>
* sanitizer_common/sanitizer_stacktrace.cc (GetCanonicFrame): Assume we
compiled code with GCC when extracting the caller PC for ARM if no
valid frame pointer is available.
2016-11-09 Maxim Ostapenko <m.ostapenko@samsung.com>
PR sanitizer/63958

4
libsanitizer/sanitizer_common/sanitizer_stacktrace.cc
View file

@ -55,8 +55,8 @@ static inline uhwptr *GetCanonicFrame(uptr bp,
// Nope, this does not look right either. This means the frame after next does
// not have a valid frame pointer, but we can still extract the caller PC.
// Unfortunately, there is no way to decide between GCC and LLVM frame
// layouts. Assume LLVM.
return bp_prev;
// layouts. Assume GCC.
return bp_prev - 1;
#else
return (uhwptr*)bp;
#endif