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libmach: more info when memory reads fail on Darwin

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R=r
CC=golang-dev
https://golang.org/cl/604043
This commit is contained in:
Russ Cox 2010-03-20 22:37:23 -07:00
parent 8021296179
commit aceba042d6
1 changed files with 4 additions and 2 deletions
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6
src/libmach/darwin.c
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@ -156,7 +156,7 @@ me(kern_return_t r)
for(i=0; i<nelem(macherr); i++){
if(r == macherr[i].code){
werrstr("%s", macherr[i].name);
werrstr("mach: %s", macherr[i].name);
return -1;
}
}
@ -408,8 +408,10 @@ machsegrw(Map *map, Seg *seg, uvlong addr, void *v, uint n, int isr)
if(isr){
vm_size_t nn;
nn = n;
if(me(vm_read_overwrite(task, addr, n, (uintptr)v, &nn)) < 0)
if(me(vm_read_overwrite(task, addr, n, (uintptr)v, &nn)) < 0) {
fprint(2, "vm_read_overwrite %#llux %d to %p: %r\n", addr, n, v);
return -1;
}
return nn;
}else{
r = vm_write(task, addr, (uintptr)v, n);