diff options
Diffstat (limited to 'src/pkg/runtime/malloc.cgo')
| -rw-r--r-- | src/pkg/runtime/malloc.cgo | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/src/pkg/runtime/malloc.cgo b/src/pkg/runtime/malloc.cgo index 6a769c9e0..3b755fc4e 100644 --- a/src/pkg/runtime/malloc.cgo +++ b/src/pkg/runtime/malloc.cgo @@ -208,8 +208,19 @@ mallocinit(void) void* SysAlloc(uintptr n) { + void *p; mstats.sys += n; - return runtime_mmap(nil, n, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_ANON|MAP_PRIVATE, -1, 0); + 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 |