maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity

[sanitizer] Fix return type of __bzero and __aeabi_mem* interceptors. 

llvm-svn: 355231
This commit is contained in:
Evgeniy Stepanov 2019-03-01 21:59:18 +00:00
parent 72e83488f3
commit ddc4b7c1d6
4 changed files with 87 additions and 65 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
compiler-rt/lib/asan/asan_interceptors_memintrinsics.cc
View File

@ -20,14 +20,17 @@ using namespace __asan; // NOLINT
void *__asan_memcpy(void *to, const void *from, uptr size) {
ASAN_MEMCPY_IMPL(nullptr, to, from, size);
return to;
}
void *__asan_memset(void *block, int c, uptr size) {
ASAN_MEMSET_IMPL(nullptr, block, c, size);
return block;
}
void *__asan_memmove(void *to, const void *from, uptr size) {
ASAN_MEMMOVE_IMPL(nullptr, to, from, size);
return to;
}
#if SANITIZER_FUCHSIA || SANITIZER_RTEMS

81
compiler-rt/lib/asan/asan_interceptors_memintrinsics.h
View File

@ -78,46 +78,57 @@ struct AsanInterceptorContext {
// memcpy is called during __asan_init() from the internals of printf(...).
// We do not treat memcpy with to==from as a bug.
// See http://llvm.org/bugs/show_bug.cgi?id=11763.
#define ASAN_MEMCPY_IMPL(ctx, to, from, size) \
do { \
if (UNLIKELY(!asan_inited)) return internal_memcpy(to, from, size); \
if (asan_init_is_running) { \
return REAL(memcpy)(to, from, size); \
} \
ENSURE_ASAN_INITED(); \
if (flags()->replace_intrin) { \
if (to != from) { \
CHECK_RANGES_OVERLAP("memcpy", to, size, from, size); \
} \
ASAN_READ_RANGE(ctx, from, size); \
ASAN_WRITE_RANGE(ctx, to, size); \
} \
return REAL(memcpy)(to, from, size); \
#define ASAN_MEMCPY_IMPL(ctx, to, from, size) \
do { \
if (UNLIKELY(!asan_inited)) { \
internal_memcpy(to, from, size); \
break; \
} \
if (asan_init_is_running) { \
REAL(memcpy)(to, from, size); \
break; \
} \
ENSURE_ASAN_INITED(); \
if (flags()->replace_intrin) { \
if (to != from) { \
CHECK_RANGES_OVERLAP("memcpy", to, size, from, size); \
} \
ASAN_READ_RANGE(ctx, from, size); \
ASAN_WRITE_RANGE(ctx, to, size); \
} \
REAL(memcpy)(to, from, size); \
} while (0)
// memset is called inside Printf.
#define ASAN_MEMSET_IMPL(ctx, block, c, size) \
do { \
if (UNLIKELY(!asan_inited)) return internal_memset(block, c, size); \
if (asan_init_is_running) { \
return REAL(memset)(block, c, size); \
} \
ENSURE_ASAN_INITED(); \
if (flags()->replace_intrin) { \
ASAN_WRITE_RANGE(ctx, block, size); \
} \
return REAL(memset)(block, c, size); \
#define ASAN_MEMSET_IMPL(ctx, block, c, size) \
do { \
if (UNLIKELY(!asan_inited)) { \
internal_memset(block, c, size); \
break; \
} \
if (asan_init_is_running) { \
REAL(memset)(block, c, size); \
break; \
} \
ENSURE_ASAN_INITED(); \
if (flags()->replace_intrin) { \
ASAN_WRITE_RANGE(ctx, block, size); \
} \
REAL(memset)(block, c, size); \
} while (0)
#define ASAN_MEMMOVE_IMPL(ctx, to, from, size) \
do { \
if (UNLIKELY(!asan_inited)) return internal_memmove(to, from, size); \
ENSURE_ASAN_INITED(); \
if (flags()->replace_intrin) { \
ASAN_READ_RANGE(ctx, from, size); \
ASAN_WRITE_RANGE(ctx, to, size); \
} \
return internal_memmove(to, from, size); \
#define ASAN_MEMMOVE_IMPL(ctx, to, from, size) \
do { \
if (UNLIKELY(!asan_inited)) { \
internal_memmove(to, from, size); \
break; \
} \
ENSURE_ASAN_INITED(); \
if (flags()->replace_intrin) { \
ASAN_READ_RANGE(ctx, from, size); \
ASAN_WRITE_RANGE(ctx, to, size); \
} \
internal_memmove(to, from, size); \
} while (0)
#define ASAN_READ_RANGE(ctx, offset, size) \

6
compiler-rt/lib/msan/msan_interceptors.cc
View File

@ -1311,17 +1311,17 @@ int OnExit() {
#define COMMON_INTERCEPTOR_MEMSET_IMPL(ctx, block, c, size) \
{ \
(void)ctx; \
return __msan_memset(block, c, size); \
__msan_memset(block, c, size); \
}
#define COMMON_INTERCEPTOR_MEMMOVE_IMPL(ctx, to, from, size) \
{ \
(void)ctx; \
return __msan_memmove(to, from, size); \
__msan_memmove(to, from, size); \
}
#define COMMON_INTERCEPTOR_MEMCPY_IMPL(ctx, to, from, size) \
{ \
(void)ctx; \
return __msan_memcpy(to, from, size); \
__msan_memcpy(to, from, size); \
}
#define COMMON_INTERCEPTOR_COPY_STRING(ctx, to, from, size) \

62
compiler-rt/lib/sanitizer_common/sanitizer_common_interceptors.inc
View File

@ -238,43 +238,48 @@ bool PlatformHasDifferentMemcpyAndMemmove();
#ifndef COMMON_INTERCEPTOR_MEMSET_IMPL
#define COMMON_INTERCEPTOR_MEMSET_IMPL(ctx, dst, v, size) \
{ \
if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED) \
return internal_memset(dst, v, size); \
do { \
if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED) { \
internal_memset(dst, v, size); \
break; \
} \
COMMON_INTERCEPTOR_ENTER(ctx, memset, dst, v, size); \
if (common_flags()->intercept_intrin) \
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, size); \
return REAL(memset)(dst, v, size); \
}
REAL(memset)(dst, v, size); \
} while (0)
#endif
#ifndef COMMON_INTERCEPTOR_MEMMOVE_IMPL
#define COMMON_INTERCEPTOR_MEMMOVE_IMPL(ctx, dst, src, size) \
{ \
if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED) \
return internal_memmove(dst, src, size); \
do { \
if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED) { \
internal_memmove(dst, src, size); \
break; \
} \
COMMON_INTERCEPTOR_ENTER(ctx, memmove, dst, src, size); \
if (common_flags()->intercept_intrin) { \
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, size); \
COMMON_INTERCEPTOR_READ_RANGE(ctx, src, size); \
} \
return REAL(memmove)(dst, src, size); \
}
REAL(memmove)(dst, src, size); \
} while (0)
#endif
#ifndef COMMON_INTERCEPTOR_MEMCPY_IMPL
#define COMMON_INTERCEPTOR_MEMCPY_IMPL(ctx, dst, src, size) \
{ \
do { \
if (COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED) { \
return internal_memmove(dst, src, size); \
internal_memmove(dst, src, size); \
break; \
} \
COMMON_INTERCEPTOR_ENTER(ctx, memcpy, dst, src, size); \
if (common_flags()->intercept_intrin) { \
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, dst, size); \
COMMON_INTERCEPTOR_READ_RANGE(ctx, src, size); \
} \
return REAL(memcpy)(dst, src, size); \
}
REAL(memcpy)(dst, src, size); \
} while (0)
#endif
#ifndef COMMON_INTERCEPTOR_MMAP_IMPL
@ -771,6 +776,7 @@ INTERCEPTOR(char *, strpbrk, const char *s1, const char *s2) {
INTERCEPTOR(void *, memset, void *dst, int v, uptr size) {
void *ctx;
COMMON_INTERCEPTOR_MEMSET_IMPL(ctx, dst, v, size);
return dst;
}
#define INIT_MEMSET COMMON_INTERCEPT_FUNCTION(memset)
@ -782,6 +788,7 @@ INTERCEPTOR(void *, memset, void *dst, int v, uptr size) {
INTERCEPTOR(void *, memmove, void *dst, const void *src, uptr size) {
void *ctx;
COMMON_INTERCEPTOR_MEMMOVE_IMPL(ctx, dst, src, size);
return dst;
}
#define INIT_MEMMOVE COMMON_INTERCEPT_FUNCTION(memmove)
@ -802,6 +809,7 @@ INTERCEPTOR(void *, memcpy, void *dst, const void *src, uptr size) {
} else {
COMMON_INTERCEPTOR_MEMMOVE_IMPL(ctx, dst, src, size);
}
return dst;
}
#define INIT_MEMCPY \
@ -5446,63 +5454,63 @@ INTERCEPTOR(int, capset, void *hdrp, const void *datap) {
#endif
#if SANITIZER_INTERCEPT_AEABI_MEM
INTERCEPTOR(void *, __aeabi_memmove, void *to, const void *from, uptr size) {
INTERCEPTOR(void, __aeabi_memmove, void *to, const void *from, uptr size) {
void *ctx;
COMMON_INTERCEPTOR_MEMMOVE_IMPL(ctx, to, from, size);
}
INTERCEPTOR(void *, __aeabi_memmove4, void *to, const void *from, uptr size) {
INTERCEPTOR(void, __aeabi_memmove4, void *to, const void *from, uptr size) {
void *ctx;
COMMON_INTERCEPTOR_MEMMOVE_IMPL(ctx, to, from, size);
}
INTERCEPTOR(void *, __aeabi_memmove8, void *to, const void *from, uptr size) {
INTERCEPTOR(void, __aeabi_memmove8, void *to, const void *from, uptr size) {
void *ctx;
COMMON_INTERCEPTOR_MEMMOVE_IMPL(ctx, to, from, size);
}
INTERCEPTOR(void *, __aeabi_memcpy, void *to, const void *from, uptr size) {
INTERCEPTOR(void, __aeabi_memcpy, void *to, const void *from, uptr size) {
void *ctx;
COMMON_INTERCEPTOR_MEMCPY_IMPL(ctx, to, from, size);
}
INTERCEPTOR(void *, __aeabi_memcpy4, void *to, const void *from, uptr size) {
INTERCEPTOR(void, __aeabi_memcpy4, void *to, const void *from, uptr size) {
void *ctx;
COMMON_INTERCEPTOR_MEMCPY_IMPL(ctx, to, from, size);
}
INTERCEPTOR(void *, __aeabi_memcpy8, void *to, const void *from, uptr size) {
INTERCEPTOR(void, __aeabi_memcpy8, void *to, const void *from, uptr size) {
void *ctx;
COMMON_INTERCEPTOR_MEMCPY_IMPL(ctx, to, from, size);
}
// Note the argument order.
INTERCEPTOR(void *, __aeabi_memset, void *block, uptr size, int c) {
INTERCEPTOR(void, __aeabi_memset, void *block, uptr size, int c) {
void *ctx;
COMMON_INTERCEPTOR_MEMSET_IMPL(ctx, block, c, size);
}
INTERCEPTOR(void *, __aeabi_memset4, void *block, uptr size, int c) {
INTERCEPTOR(void, __aeabi_memset4, void *block, uptr size, int c) {
void *ctx;
COMMON_INTERCEPTOR_MEMSET_IMPL(ctx, block, c, size);
}
INTERCEPTOR(void *, __aeabi_memset8, void *block, uptr size, int c) {
INTERCEPTOR(void, __aeabi_memset8, void *block, uptr size, int c) {
void *ctx;
COMMON_INTERCEPTOR_MEMSET_IMPL(ctx, block, c, size);
}
INTERCEPTOR(void *, __aeabi_memclr, void *block, uptr size) {
INTERCEPTOR(void, __aeabi_memclr, void *block, uptr size) {
void *ctx;
COMMON_INTERCEPTOR_MEMSET_IMPL(ctx, block, 0, size);
}
INTERCEPTOR(void *, __aeabi_memclr4, void *block, uptr size) {
INTERCEPTOR(void, __aeabi_memclr4, void *block, uptr size) {
void *ctx;
COMMON_INTERCEPTOR_MEMSET_IMPL(ctx, block, 0, size);
}
INTERCEPTOR(void *, __aeabi_memclr8, void *block, uptr size) {
INTERCEPTOR(void, __aeabi_memclr8, void *block, uptr size) {
void *ctx;
COMMON_INTERCEPTOR_MEMSET_IMPL(ctx, block, 0, size);
}
@ -5525,7 +5533,7 @@ INTERCEPTOR(void *, __aeabi_memclr8, void *block, uptr size) {
#endif // SANITIZER_INTERCEPT_AEABI_MEM
#if SANITIZER_INTERCEPT___BZERO
INTERCEPTOR(void *, __bzero, void *block, uptr size) {
INTERCEPTOR(void, __bzero, void *block, uptr size) {
void *ctx;
COMMON_INTERCEPTOR_MEMSET_IMPL(ctx, block, 0, size);
}