[Msan] Fix some interceptors to pass initialization on FreeBSD
Differential Revision: http://reviews.llvm.org/D6417 llvm-svn: 222885
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@ -266,6 +266,8 @@ INTERCEPTOR(void, malloc_stats, void) {
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#endif
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INTERCEPTOR(SIZE_T, strlen, const char *s) {
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if (msan_init_is_running)
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return REAL(strlen)(s);
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ENSURE_MSAN_INITED();
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SIZE_T res = REAL(strlen)(s);
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CHECK_UNPOISONED(s, res + 1);
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@ -636,6 +638,8 @@ INTERCEPTOR(char *, fcvt, double x, int a, int *b, int *c) {
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}
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INTERCEPTOR(char *, getenv, char *name) {
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if (msan_init_is_running)
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return REAL(getenv)(name);
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ENSURE_MSAN_INITED();
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char *res = REAL(getenv)(name);
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if (res) __msan_unpoison(res, REAL(strlen)(res) + 1);
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@ -961,6 +965,8 @@ void __msan_allocated_memory(const void* data, uptr size) {
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INTERCEPTOR(void *, mmap, void *addr, SIZE_T length, int prot, int flags,
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int fd, OFF_T offset) {
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if (msan_init_is_running)
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return REAL(mmap)(addr, length, prot, flags, fd, offset);
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ENSURE_MSAN_INITED();
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if (addr && !MEM_IS_APP(addr)) {
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if (flags & map_fixed) {
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