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fix traceback to know about new segmenting

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SVN=126930
This commit is contained in:
Rob Pike 2008-07-11 19:35:14 -07:00
parent 751ce3a77a
commit 44f65c8f08
1 changed files with 2 additions and 4 deletions
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6
src/runtime/rt2_amd64.c
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@ -8,8 +8,7 @@ extern int32 debug;
static int8 spmark[] = "\xa7\xf1\xd9\x2a\x82\xc8\xd8\xfe";
extern void _morestack();
extern void _endmorestack();
extern void morestack2();
void
traceback(uint8 *pc, uint8 *sp, void* r15)
@ -30,7 +29,7 @@ traceback(uint8 *pc, uint8 *sp, void* r15)
name = "panic";
for(;;){
callpc = pc;
if((uint8*)_morestack < pc && pc < (uint8*)_endmorestack) {
if((uint8*)morestack2 == pc) {
// call site in _morestack(); pop to earlier stack block to get true caller
stktop = (Stktop*)g.stackbase;
g.stackbase = stktop->oldbase;
@ -83,6 +82,5 @@ traceback(uint8 *pc, uint8 *sp, void* r15)
sys·printpointer(((void**)sp)[i]);
}
prints(", ...)\n");
/* print pc for next frame */
}
}