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[ASan] one more macro for 'read' interception 

llvm-svn: 170114
This commit is contained in:
Alexey Samsonov 2012-12-13 08:36:13 +00:00
parent 3e7ede230f
commit 447e2f2f19
2 changed files with 13 additions and 1 deletions
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2
compiler-rt/lib/asan/asan_intercepted_functions.h
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@ -154,7 +154,9 @@ DECLARE_FUNCTION_AND_WRAPPER(long long, strtoll, const char *nptr, char **endptr
# endif
// unistd.h
# if SANITIZER_INTERCEPT_READ
DECLARE_FUNCTION_AND_WRAPPER(SSIZE_T, read, int fd, void *buf, SIZE_T count);
# endif
# if SANITIZER_INTERCEPT_PREAD
DECLARE_FUNCTION_AND_WRAPPER(SSIZE_T, pread, int fd, void *buf,
SIZE_T count, OFF_T offset);

12
compiler-rt/lib/sanitizer_common/sanitizer_common_interceptors.h
View File

@ -23,8 +23,10 @@
#include "interception/interception.h"
#if !defined(_WIN32)
# define SANITIZER_INTERCEPT_READ 1
# define SANITIZER_INTERCEPT_PREAD 1
#else
# define SANITIZER_INTERCEPT_READ 0
# define SANITIZER_INTERCEPT_PREAD 0
#endif
@ -34,6 +36,7 @@
# define SANITIZER_INTERCEPT_PREAD64 0
#endif
#if SANITIZER_INTERCEPT_READ
INTERCEPTOR(SSIZE_T, read, int fd, void *ptr, SIZE_T count) {
COMMON_INTERCEPTOR_ENTER(read, fd, ptr, count);
SSIZE_T res = REAL(read)(fd, ptr, count);
@ -41,6 +44,7 @@ INTERCEPTOR(SSIZE_T, read, int fd, void *ptr, SIZE_T count) {
COMMON_INTERCEPTOR_WRITE_RANGE(ptr, res);
return res;
}
#endif
#if SANITIZER_INTERCEPT_PREAD
INTERCEPTOR(SSIZE_T, pread, int fd, void *ptr, SIZE_T count, OFF_T offset) {
@ -62,6 +66,12 @@ INTERCEPTOR(SSIZE_T, pread64, int fd, void *ptr, SIZE_T count, OFF64_T offset) {
}
#endif
#if SANITIZER_INTERCEPT_READ
# define INIT_READ CHECK(INTERCEPT_FUNCTION(read))
#else
# define INIT_READ
#endif
#if SANITIZER_INTERCEPT_PREAD
# define INIT_PREAD CHECK(INTERCEPT_FUNCTION(pread))
#else
@ -75,7 +85,7 @@ INTERCEPTOR(SSIZE_T, pread64, int fd, void *ptr, SIZE_T count, OFF64_T offset) {
#endif
#define SANITIZER_COMMON_INTERCEPTORS_INIT \
CHECK(INTERCEPT_FUNCTION(read)); \
INIT_READ; \
INIT_PREAD; \
INIT_PREAD64; \