blob: 7f837bd45ed093721a82a45ec0808d819741b6f6 [file] [log] [blame]
#include "runtime.h"
#include "defs.h"
#include "os.h"
#include "malloc.h"
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
}