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runtime cleanup.

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* move memory code into $GOOS-specific directory.
  * allow printing of static strings < 256 bytes.
    (dynamic strings will bump maxstring as they are allocated.)
  * use cgo2c for runtime.mal.

R=r, dho
CC=golang-dev
https://golang.org/cl/186143
This commit is contained in:
Russ Cox 2010-01-13 17:50:02 -08:00
parent 3fddcd6e87
commit 12518e441b
12 changed files with 148 additions and 66 deletions
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35
src/pkg/runtime/malloc.cgo
View file

@ -205,41 +205,6 @@ mallocinit(void)
free(malloc(1));
}
void*
SysAlloc(uintptr n)
{
void *p;
mstats.sys += n;
p = runtime_mmap(nil, n, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_ANON|MAP_PRIVATE, -1, 0);
if(p < (void*)4096) {
if(p == (void*)EACCES) {
printf("mmap: access denied\n");
printf("If you're running SELinux, enable execmem for this process.\n");
} else {
printf("mmap: errno=%p\n", p);
}
exit(2);
}
return p;
}
void
SysUnused(void *v, uintptr n)
{
USED(v);
USED(n);
// TODO(rsc): call madvise MADV_DONTNEED
}
void
SysFree(void *v, uintptr n)
{
USED(v);
USED(n);
// TODO(rsc): call munmap
}
// Runtime stubs.
void*