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| author | Moritz Angermann <moritz.angermann@gmail.com> | 2021-02-13 16:44:19 +0800 |
|---|---|---|
| committer | Marge Bot <ben+marge-bot@smart-cactus.org> | 2021-03-29 17:25:49 -0400 |
| commit | e754ff7f178a629a2261cba77a29d9510391aebd (patch) | |
| tree | 77aca9f315288b52efbc9d410a57300a4029279d /rts/LinkerInternals.h | |
| parent | 4421fb34b3a70db1323833337c94ac4364824124 (diff) | |
| download | haskell-e754ff7f178a629a2261cba77a29d9510391aebd.tar.gz | |
Allocate Adjustors and mark them readable in two steps
This drops allocateExec for darwin, and replaces it with
a alloc, write, mark executable strategy instead. This prevents
us from trying to allocate an executable range and then write to
it, which X^W will prohibit on darwin.
This will *only* work if we can use mmap.
Diffstat (limited to 'rts/LinkerInternals.h')
| -rw-r--r-- | rts/LinkerInternals.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/rts/LinkerInternals.h b/rts/LinkerInternals.h index 444849fbac..4be364cdb8 100644 --- a/rts/LinkerInternals.h +++ b/rts/LinkerInternals.h @@ -13,6 +13,11 @@ #include "linker/M32Alloc.h" #if RTS_LINKER_USE_MMAP +#if defined(ios_HOST_OS) || defined(darwin_HOST_OS) +/* Inclusion of system headers usually requires _DARWIN_C_SOURCE on Mac OS X + * because of some specific defines like MMAP_ANON, MMAP_ANONYMOUS. */ +#define _DARWIN_C_SOURCE 1 +#endif #include <sys/mman.h> #endif |