diff options
Diffstat (limited to 'contrib/llvm-project/compiler-rt/lib/asan/asan_rtl_x86_64.S')
| -rw-r--r-- | contrib/llvm-project/compiler-rt/lib/asan/asan_rtl_x86_64.S | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/contrib/llvm-project/compiler-rt/lib/asan/asan_rtl_x86_64.S b/contrib/llvm-project/compiler-rt/lib/asan/asan_rtl_x86_64.S index 0b7363018f42..9c5289856d8a 100644 --- a/contrib/llvm-project/compiler-rt/lib/asan/asan_rtl_x86_64.S +++ b/contrib/llvm-project/compiler-rt/lib/asan/asan_rtl_x86_64.S @@ -27,7 +27,12 @@ FNAME(reg, op, s, i): ;\ #define ASAN_MEMORY_ACCESS_INITIAL_CHECK_ADD(reg, op, s) \ mov %##reg,%r10 ;\ shr $0x3,%r10 ;\ + .if ASAN_SHADOW_OFFSET_CONST < 0x80000000 ;\ movsbl ASAN_SHADOW_OFFSET_CONST(%r10),%r10d ;\ + .else ;\ + movabsq $ASAN_SHADOW_OFFSET_CONST,%r11 ;\ + movsbl (%r10,%r11),%r10d ;\ + .endif ;\ test %r10d,%r10d ;\ jne CLABEL(reg, op, s, add) ;\ RLABEL(reg, op, s, add): ;\ @@ -84,7 +89,12 @@ ENDF #define ASAN_MEMORY_ACCESS_CHECK_ADD(reg, op, s, c) \ mov %##reg,%r10 ;\ shr $0x3,%r10 ;\ + .if ASAN_SHADOW_OFFSET_CONST < 0x80000000 ;\ ##c $0x0,ASAN_SHADOW_OFFSET_CONST(%r10) ;\ + .else ;\ + movabsq $ASAN_SHADOW_OFFSET_CONST,%r11 ;\ + ##c $0x0,(%r10,%r11) ;\ + .endif ;\ jne FLABEL(reg, op, s, add) ;\ retq ;\ |