diff options
Diffstat (limited to 'src/pkg/runtime/mem_linux.c')
| -rw-r--r-- | src/pkg/runtime/mem_linux.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/src/pkg/runtime/mem_linux.c b/src/pkg/runtime/mem_linux.c index b3e79cc41..ebcec1e86 100644 --- a/src/pkg/runtime/mem_linux.c +++ b/src/pkg/runtime/mem_linux.c @@ -10,6 +10,7 @@ enum { + EAGAIN = 11, ENOMEM = 12, _PAGE_SIZE = 4096, }; @@ -56,13 +57,17 @@ runtime·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); + p = runtime·mmap(nil, n, PROT_READ|PROT_WRITE, MAP_ANON|MAP_PRIVATE, -1, 0); if(p < (void*)4096) { if(p == (void*)EACCES) { runtime·printf("runtime: mmap: access denied\n"); runtime·printf("if you're running SELinux, enable execmem for this process.\n"); runtime·exit(2); } + if(p == (void*)EAGAIN) { + runtime·printf("runtime: mmap: too much locked memory (check 'ulimit -l').\n"); + runtime·exit(2); + } return nil; } return p; @@ -113,7 +118,7 @@ runtime·SysMap(void *v, uintptr n) // On 64-bit, we don't actually have v reserved, so tread carefully. if(sizeof(void*) == 8 && (uintptr)v >= 0xffffffffU) { - p = mmap_fixed(v, n, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_ANON|MAP_PRIVATE, -1, 0); + p = mmap_fixed(v, n, PROT_READ|PROT_WRITE, MAP_ANON|MAP_PRIVATE, -1, 0); if(p == (void*)ENOMEM) runtime·throw("runtime: out of memory"); if(p != v) { @@ -123,7 +128,7 @@ runtime·SysMap(void *v, uintptr n) return; } - p = runtime·mmap(v, n, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_ANON|MAP_FIXED|MAP_PRIVATE, -1, 0); + p = runtime·mmap(v, n, PROT_READ|PROT_WRITE, MAP_ANON|MAP_FIXED|MAP_PRIVATE, -1, 0); if(p == (void*)ENOMEM) runtime·throw("runtime: out of memory"); if(p != v) |