[PATCH] D40766: Handle NetBSD symbol renaming in msan_interceptors.cc

[Kamil Rytarowski via Phabricator via llvm-commits]

krytarowski created this revision.
krytarowski added a project: Sanitizers.

NetBSD renames symbols for historical and compat reasons.

Add required symbol renames in sanitizer_common_interceptors.inc:

- gettimeofday -> __gettimeofday50
- getrusage -> __getrusage50
- shmctl -> __shmctl50

Additionally handle sigaction symbol mangling.
Rename the function symbol in the file to sigaction_symname and define
it as __sigaction14 for NetBSD and sigaction for !NetBSD. We cannot use
simple renaming with the proprocessor, as there are valid fields named
sigaction and they must be left intact.

Sponsored by <The NetBSD Foundation>


Repository:
  rL LLVM

https://reviews.llvm.org/D40766

Files:
  lib/msan/msan_interceptors.cc


Index: lib/msan/msan_interceptors.cc
===================================================================
--- lib/msan/msan_interceptors.cc
+++ lib/msan/msan_interceptors.cc
@@ -37,6 +37,18 @@
 // ACHTUNG! No other system header includes in this file.
 // Ideally, we should get rid of stdarg.h as well.
 
+#if SANITIZER_NETBSD
+#define gettimeofday __gettimeofday50
+#define getrusage __getrusage50
+#define shmctl __shmctl50
+#endif
+
+#if SANITIZER_NETBSD
+#define sigaction_symname __sigaction14
+#else
+#define sigaction_symname sigaction
+#endif
+
 using namespace __msan;
 
 using __sanitizer::memory_order;


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