qbit/go
1
0
Fork 0
mirror of https://github.com/golang/go synced 2024-11-22 21:00:04 -07:00
Code Releases Activity

in traceback, handle the case where we've called through a nil function pointer

Browse Source 
R=rsc
DELTA=7  (7 added, 0 deleted, 0 changed)
OCL=18372
CL=18372
This commit is contained in:
Rob Pike 2008-11-03 15:22:15 -08:00
parent 250ec1665a
commit 63f38d62ac
1 changed files with 7 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
src/runtime/rt2_amd64.c
View File

@ -25,6 +25,13 @@ traceback(uint8 *pc, uint8 *sp, void* r15)
// store local copy of per-process data block that we can write as we unwind
mcpy((byte*)&g, (byte*)r15, sizeof(G));
// if the PC is zero, it's probably due to a nil function pointer.
// pop the failed frame.
if(pc == nil) {
pc = ((uint8**)sp)[0];
sp += 8;
}
counter = 0;
name = "panic";
for(;;){