From d34f838e2f8a03c61f2c3eeaf6a33d7995d68e7d Mon Sep 17 00:00:00 2001 From: Glenn Maynard Date: Wed, 24 Mar 2004 08:52:43 +0000 Subject: [PATCH] OS X: fix sm_crash() --- stepmania/src/archutils/Unix/Backtrace.cpp | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/stepmania/src/archutils/Unix/Backtrace.cpp b/stepmania/src/archutils/Unix/Backtrace.cpp index ab3b15a17c..3dbc916acf 100644 --- a/stepmania/src/archutils/Unix/Backtrace.cpp +++ b/stepmania/src/archutils/Unix/Backtrace.cpp @@ -394,7 +394,10 @@ void GetBacktrace( const void **buf, size_t size, const BacktraceContext *ctx ) if( ctx == NULL ) { ctx = &CurrentCtx; - CurrentCtx.FramePtr = (void *) __builtin_frame_address(0); + + /* __builtin_frame_address is broken on OS X; it sometimes returns bogus results. */ + register void *r1 __asm__ ("r1"); + CurrentCtx.FramePtr = (void *) r1; } const Frame *frame = (Frame *) ctx->FramePtr;