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| author |   deraadt <deraadt@openbsd.org> | 2018-02-11 04:12:22 +0000 |
|---|---|---|
| committer | deraadt <deraadt@openbsd.org> | 2018-02-11 04:12:22 +0000 |
| commit | 8adff5e22e3af505bebef0d446674251f60eed43 (patch) | |
| tree | debdbce72e59b91100a73a5a544c99b3da4d7080 | |
| parent | Can mask MAP_STACK by name rather than number (diff) | |
| download | wireguard-openbsd-8adff5e22e3af505bebef0d446674251f60eed43.tar.xz wireguard-openbsd-8adff5e22e3af505bebef0d446674251f60eed43.zip | |
Start mapping thread stacks with MAP_STACK. mmap() currently ignores
the flag, but some problem identification can begin.
| -rw-r--r-- | lib/librthread/rthread_stack.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/librthread/rthread_stack.c b/lib/librthread/rthread_stack.c index 73c13e8478d..37d2eeadc05 100644 --- a/lib/librthread/rthread_stack.c +++ b/lib/librthread/rthread_stack.c @@ -1,4 +1,4 @@ -/* $OpenBSD: rthread_stack.c,v 1.18 2018/02/10 22:59:02 deraadt Exp $ */ +/* $OpenBSD: rthread_stack.c,v 1.19 2018/02/11 04:12:22 deraadt Exp $ */ /* PUBLIC DOMAIN: No Rights Reserved. Marco S Hyman <marc@snafu.org> */ @@ -92,7 +92,7 @@ _rthread_alloc_stack(pthread_t thread) /* actually allocate the real stack */ base = mmap(NULL, size, PROT_READ | PROT_WRITE, - MAP_PRIVATE | MAP_ANON, -1, 0); + MAP_PRIVATE | MAP_ANON | MAP_STACK, -1, 0); if (base == MAP_FAILED) { free(stack); return (NULL); |