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[test] Use a helper macro to refer to MAP_ANON (NFC) 

Some of our internal bots use old SDK's which don't define MAP_ANON.
Use a helper macro to pass the right flag into mmap().

llvm-svn: 287833
This commit is contained in:
Vedant Kumar 2016-11-23 22:23:42 +00:00
parent 8469b8841c
commit 3ac1d4dc10
1 changed files with 8 additions and 2 deletions
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10
compiler-rt/test/tsan/ignore_lib5.cc
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@ -27,14 +27,20 @@
# define MAP_32BIT 0
#endif
#ifdef __APPLE__
# define TSAN_MAP_ANON MAP_ANON
#else
# define TSAN_MAP_ANON MAP_ANONYMOUS
#endif
void *thr(void *arg) {
// This thread creates lots of separate mappings in /proc/self/maps before
// the ignored library.
for (int i = 0; i < 10000; i++) {
if (i == 5000)
barrier_wait(&barrier);
mmap(0, 4096, PROT_READ, MAP_ANONYMOUS | MAP_PRIVATE | MAP_32BIT, -1 , 0);
mmap(0, 4096, PROT_WRITE, MAP_ANONYMOUS | MAP_PRIVATE | MAP_32BIT, -1 , 0);
mmap(0, 4096, PROT_READ, TSAN_MAP_ANON | MAP_PRIVATE | MAP_32BIT, -1 , 0);
mmap(0, 4096, PROT_WRITE, TSAN_MAP_ANON | MAP_PRIVATE | MAP_32BIT, -1 , 0);
}
return 0;
}