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runtime: fix nacl amd64p32 flakiness

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newproc takes two extra pointers, not two extra registers.
On amd64p32 (nacl) they are different.

We diagnosed this before the 1.3 cut but the tree was frozen.
I believe this is causing the random problems on the builder.

Fixes #8199.

TBR=r
CC=golang-codereviews
https://golang.org/cl/102710043
This commit is contained in:
Russ Cox 2014-06-27 20:13:16 -04:00
parent ea0fb5d8e2
commit 84a36434d9
1 changed files with 1 additions and 1 deletions
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2
src/pkg/runtime/traceback_x86.c
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@ -214,7 +214,7 @@ runtime·gentraceback(uintptr pc0, uintptr sp0, uintptr lr0, G *gp, int32 skip,
// the SP is two words lower than normal.
sparg = frame.sp;
if(wasnewproc)
sparg += 2*sizeof(uintreg);
sparg += 2*sizeof(uintptr);
// Determine frame's 'continuation PC', where it can continue.
// Normally this is the return address on the stack, but if sigpanic