diff options
| -rw-r--r-- | qemu_mode/libqasan/hooks.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/qemu_mode/libqasan/hooks.c b/qemu_mode/libqasan/hooks.c index 405dddae..9adef8cd 100644 --- a/qemu_mode/libqasan/hooks.c +++ b/qemu_mode/libqasan/hooks.c @@ -26,6 +26,8 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. #include "libqasan.h" #include "map_macro.h" +ssize_t (*__lq_libc_write)(int, const void *, size_t); +ssize_t (*__lq_libc_read)(int, void *, size_t); char *(*__lq_libc_fgets)(char *, int, FILE *); int (*__lq_libc_atoi)(const char *); long (*__lq_libc_atol)(const char *); @@ -35,6 +37,8 @@ void __libqasan_init_hooks(void) { __libqasan_init_malloc(); + __lq_libc_write = ASSERT_DLSYM(write); + __lq_libc_read = ASSERT_DLSYM(read); __lq_libc_fgets = ASSERT_DLSYM(fgets); __lq_libc_atoi = ASSERT_DLSYM(atoi); __lq_libc_atol = ASSERT_DLSYM(atol); @@ -42,6 +46,30 @@ void __libqasan_init_hooks(void) { } +ssize_t write(int fd, const void *buf, size_t count) { + + void *rtv = __builtin_return_address(0); + + QASAN_DEBUG("%14p: write(%d, %p, %ld)\n", rtv, fd, buf, count); + ssize_t r = __lq_libc_write(fd, buf, count); + QASAN_DEBUG("\t\t = %p\n", r); + + return r; + +} + +ssize_t read(int fd, void *buf, size_t count) { + + void *rtv = __builtin_return_address(0); + + QASAN_DEBUG("%14p: read(%d, %p, %ld)\n", rtv, fd, buf, count); + ssize_t r = __lq_libc_read(fd, buf, count); + QASAN_DEBUG("\t\t = %p\n", r); + + return r; + +} + #ifdef __ANDROID__ size_t malloc_usable_size(const void *ptr) { |