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In the dynamic runtime on Mac OS, do not call internal_strdup() before __asan_init(). 

This may result in a crash at startup.
Fixes http://code.google.com/p/address-sanitizer/issues/detail?id=123.

llvm-svn: 166768
This commit is contained in:
Alexander Potapenko 2012-10-26 11:31:14 +00:00
parent 4a0f7becd8
commit 99843d3a29
1 changed files with 8 additions and 0 deletions
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8
compiler-rt/lib/asan/asan_interceptors.cc
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@ -382,6 +382,14 @@ INTERCEPTOR(char*, strcpy, char *to, const char *from) { // NOLINT
#if ASAN_INTERCEPT_STRDUP
INTERCEPTOR(char*, strdup, const char *s) {
#if MAC_INTERPOSE_FUNCTIONS
// FIXME: because internal_strdup() uses InternalAlloc(), which currently
// just calls malloc() on Mac, we can't use internal_strdup() with the
// dynamic runtime. We can remove the call to REAL(strdup) once InternalAlloc
// starts using mmap() instead.
// See also http://code.google.com/p/address-sanitizer/issues/detail?id=123.
if (!asan_inited) return REAL(strdup)(s);
#endif
if (!asan_inited) return internal_strdup(s);
ENSURE_ASAN_INITED();
if (flags()->replace_str) {