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[msan] start using common interceptors in msan 

llvm-svn: 172721
This commit is contained in:
Kostya Serebryany 2013-01-17 13:57:07 +00:00
parent e3a325197a
commit b114d01849
1 changed files with 11 additions and 27 deletions
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38
compiler-rt/lib/msan/msan_interceptors.cc
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@ -67,30 +67,6 @@ INTERCEPTOR(SIZE_T, fread_unlocked, void *ptr, SIZE_T size, SIZE_T nmemb,
return res;
}
INTERCEPTOR(SSIZE_T, read, int fd, void *ptr, SIZE_T count) {
ENSURE_MSAN_INITED();
SSIZE_T res = REAL(read)(fd, ptr, count);
if (res > 0)
__msan_unpoison(ptr, res);
return res;
}
INTERCEPTOR(SSIZE_T, pread, int fd, void *ptr, SIZE_T count, OFF_T offset) {
ENSURE_MSAN_INITED();
SSIZE_T res = REAL(pread)(fd, ptr, count, offset);
if (res > 0)
__msan_unpoison(ptr, res);
return res;
}
INTERCEPTOR(SSIZE_T, pread64, int fd, void *ptr, SIZE_T count, OFF64_T offset) {
ENSURE_MSAN_INITED();
SSIZE_T res = REAL(pread64)(fd, ptr, count, offset);
if (res > 0)
__msan_unpoison(ptr, res);
return res;
}
INTERCEPTOR(SSIZE_T, readlink, const char *path, char *buf, SIZE_T bufsiz) {
ENSURE_MSAN_INITED();
SSIZE_T res = REAL(readlink)(path, buf, bufsiz);
@ -759,6 +735,15 @@ INTERCEPTOR(int, getrusage, int who, void *usage) {
return res;
}
#define COMMON_INTERCEPTOR_WRITE_RANGE(ptr, size) \
__msan_unpoison(ptr, size)
#define COMMON_INTERCEPTOR_READ_RANGE(ptr, size) do { } while (false)
#define COMMON_INTERCEPTOR_ENTER(func, ...) ENSURE_MSAN_INITED()
#define COMMON_INTERCEPTOR_FD_ACQUIRE(fd) do { } while (false)
#define COMMON_INTERCEPTOR_FD_RELEASE(fd) do { } while (false)
#define COMMON_INTERCEPTOR_SET_THREAD_NAME(name) do { } while (false) // FIXME
#include "sanitizer_common/sanitizer_common_interceptors.h"
// static
void *fast_memset(void *ptr, int c, SIZE_T n) {
// hack until we have a really fast internal_memset
@ -868,6 +853,8 @@ namespace __msan {
void InitializeInterceptors() {
static int inited = 0;
CHECK_EQ(inited, 0);
SANITIZER_COMMON_INTERCEPTORS_INIT;
INTERCEPT_FUNCTION(mmap);
INTERCEPT_FUNCTION(mmap64);
INTERCEPT_FUNCTION(posix_memalign);
@ -877,9 +864,6 @@ void InitializeInterceptors() {
INTERCEPT_FUNCTION(free);
INTERCEPT_FUNCTION(fread);
INTERCEPT_FUNCTION(fread_unlocked);
INTERCEPT_FUNCTION(read);
INTERCEPT_FUNCTION(pread);
INTERCEPT_FUNCTION(pread64);
INTERCEPT_FUNCTION(readlink);
INTERCEPT_FUNCTION(readdir);
INTERCEPT_FUNCTION(memcpy);