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backtrace: Only use __builtin_frame_address if GNU C is in use.

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This eliminates one small GNU C dependency.
This commit is contained in:
Ben Pfaff
2010-12-16 11:04:14 -08:00
parent 57b7c6a143
commit e4fd8d288a
1 changed files with 4 additions and 0 deletions
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4
lib/backtrace.c
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@@ -83,6 +83,7 @@ in_stack(void *p)
void void
backtrace_capture(struct backtrace *backtrace) backtrace_capture(struct backtrace *backtrace)
{ {
#ifdef __GNUC__
void **frame; void **frame;
size_t n; size_t n;
@@ -95,4 +96,7 @@ backtrace_capture(struct backtrace *backtrace)
backtrace->frames[n++] = (uintptr_t) frame[1]; backtrace->frames[n++] = (uintptr_t) frame[1];
} }
backtrace->n_frames = n; backtrace->n_frames = n;
#else
backtrace->n_frames = 0;
#endif
} }