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fix silly portability bug 

R=gri
OCL=15238
CL=15238
This commit is contained in:
Rob Pike 2008-09-12 12:17:13 -07:00
parent e1a9b6ee77
commit e9047d1fc2
4 changed files with 8 additions and 2 deletions
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3
src/runtime/rt1_amd64_darwin.c
View File

@ -6,6 +6,9 @@
#include "amd64_darwin.h"
#include "signals.h"
extern void _rt0_amd64_darwin();
byte* startsym = (byte*)_rt0_amd64_darwin;
typedef uint64 __uint64_t;
/* From /usr/include/mach/i386/_structs.h */

3
src/runtime/rt1_amd64_linux.c
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@ -6,6 +6,9 @@
#include "amd64_linux.h"
#include "signals.h"
extern void _rt0_amd64_linux();
byte* startsym = (byte*)_rt0_amd64_linux;
/* From /usr/include/asm-x86_64/sigcontext.h */
struct _fpstate {
uint16 cwd;

3
src/runtime/rt2_amd64.c
View File

@ -94,11 +94,10 @@ int32
inlinetrap(int32 sig, byte* pc)
{
extern void etext();
extern void _rt0_amd64_darwin();
if(sig != 5) /* SIGTRAP */
return 0;
if(pc-2 < (byte*)_rt0_amd64_darwin || pc >= (byte*)etext)
if(pc-2 < startsym || pc >= (byte*)etext)
return 0;
if(pc[-2] != 0xcd) /* INTB */
return 0;

1
src/runtime/runtime.h
View File

@ -208,6 +208,7 @@ G* allg;
int32 goidgen;
extern int32 gomaxprocs;
extern int32 panicking;
extern byte *startsym;
/*
* common functions and data