diff options
Diffstat (limited to 'external/python3/ubsan.patch.0')
| -rw-r--r-- | external/python3/ubsan.patch.0 | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/external/python3/ubsan.patch.0 b/external/python3/ubsan.patch.0 new file mode 100644 index 000000000..938acc1f1 --- /dev/null +++ b/external/python3/ubsan.patch.0 @@ -0,0 +1,20 @@ +--- Modules/_ctypes/libffi_osx/x86/x86-ffi64.c ++++ Modules/_ctypes/libffi_osx/x86/x86-ffi64.c +@@ -599,9 +599,15 @@ + tramp = (volatile unsigned short*)&closure->tramp[0]; + + tramp[0] = 0xbb49; /* mov <code>, %r11 */ +- *(void* volatile*)&tramp[1] = ffi_closure_unix64; ++ tramp[1] = (unsigned short) ffi_closure_unix64; ++ tramp[2] = (unsigned short) (((unsigned long)ffi_closure_unix64) >> 16); ++ tramp[3] = (unsigned short) (((unsigned long)ffi_closure_unix64) >> 32); ++ tramp[4] = (unsigned short) (((unsigned long)ffi_closure_unix64) >> 48); + tramp[5] = 0xba49; /* mov <data>, %r10 */ +- *(void* volatile*)&tramp[6] = closure; ++ tramp[6] = (unsigned short) closure; ++ tramp[7] = (unsigned short) (((unsigned long)closure) >> 16); ++ tramp[8] = (unsigned short) (((unsigned long)closure) >> 32); ++ tramp[9] = (unsigned short) (((unsigned long)closure) >> 48); + + /* Set the carry bit if the function uses any sse registers. + This is clc or stc, together with the first byte of the jmp. */ |