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re PR sanitizer/78663 (Hundreds of asan failures on x86_64-apple-darwin10 at r243019)

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PR sanitizer/78663
	* sanitizer_common/sanitizer_mac.cc: Cherry-pick upstream r293992.
	* sanitizer_common/sanitizer_platform_interceptors.h: Likewise.

From-SVN: r245149
This commit is contained in:
Maxim Ostapenko 2017-02-03 12:17:59 +00:00 committed by Maxim Ostapenko
parent 5dd5e20438
commit 778e0ac397
3 changed files with 28 additions and 10 deletions
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6
libsanitizer/ChangeLog
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@ -1,3 +1,9 @@
2017-02-03 Maxim Ostapenko <m.ostapenko@samsung.com>
PR sanitizer/78663
* sanitizer_common/sanitizer_mac.cc: Cherry-pick upstream r293992.
* sanitizer_common/sanitizer_platform_interceptors.h: Likewise.
2017-01-31 Jakub Jelinek <jakub@redhat.com>
* configure.tgt: Enable asan and ubsan on 64-bit s390*-*-linux*.

22
libsanitizer/sanitizer_common/sanitizer_mac.cc
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@ -91,20 +91,22 @@ namespace __sanitizer {
#include "sanitizer_syscall_generic.inc"
// Direct syscalls, don't call libmalloc hooks.
// Direct syscalls, don't call libmalloc hooks (but not available on 10.6).
extern "C" void *__mmap(void *addr, size_t len, int prot, int flags, int fildes,
off_t off);
extern "C" int __munmap(void *, size_t);
off_t off) SANITIZER_WEAK_ATTRIBUTE;
extern "C" int __munmap(void *, size_t) SANITIZER_WEAK_ATTRIBUTE;
// ---------------------- sanitizer_libc.h
uptr internal_mmap(void *addr, size_t length, int prot, int flags,
int fd, u64 offset) {
if (fd == -1) fd = VM_MAKE_TAG(VM_MEMORY_ANALYSIS_TOOL);
return (uptr)__mmap(addr, length, prot, flags, fd, offset);
if (__mmap) return (uptr)__mmap(addr, length, prot, flags, fd, offset);
return (uptr)mmap(addr, length, prot, flags, fd, offset);
}
uptr internal_munmap(void *addr, uptr length) {
return __munmap(addr, length);
if (__munmap) return __munmap(addr, length);
return munmap(addr, length);
}
int internal_mprotect(void *addr, uptr length, int prot) {
@ -190,17 +192,19 @@ uptr internal_sigprocmask(int how, __sanitizer_sigset_t *set,
return sigprocmask(how, set, oldset);
}
// Doesn't call pthread_atfork() handlers.
extern "C" pid_t __fork(void);
// Doesn't call pthread_atfork() handlers (but not available on 10.6).
extern "C" pid_t __fork(void) SANITIZER_WEAK_ATTRIBUTE;
int internal_fork() {
return __fork();
if (__fork)
return __fork();
return fork();
}
int internal_forkpty(int *amaster) {
int master, slave;
if (openpty(&master, &slave, nullptr, nullptr, nullptr) == -1) return -1;
int pid = __fork();
int pid = internal_fork();
if (pid == -1) {
close(master);
close(slave);

10
libsanitizer/sanitizer_common/sanitizer_platform_interceptors.h
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@ -81,8 +81,16 @@
#define SANITIZER_INTERCEPT_MEMMOVE 1
#define SANITIZER_INTERCEPT_MEMCPY 1
#define SANITIZER_INTERCEPT_MEMCMP 1
#if defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && \
__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ < 1070
# define SI_MAC_DEPLOYMENT_BELOW_10_7 1
#else
# define SI_MAC_DEPLOYMENT_BELOW_10_7 0
#endif
// memmem on Darwin doesn't exist on 10.6
// FIXME: enable memmem on Windows.
#define SANITIZER_INTERCEPT_MEMMEM SI_NOT_WINDOWS
#define SANITIZER_INTERCEPT_MEMMEM \
SI_NOT_WINDOWS && !SI_MAC_DEPLOYMENT_BELOW_10_7
#define SANITIZER_INTERCEPT_MEMCHR 1
#define SANITIZER_INTERCEPT_MEMRCHR SI_FREEBSD || SI_LINUX