diff options
Diffstat (limited to 'external/python3/ubsan.patch.0')
| -rw-r--r-- | external/python3/ubsan.patch.0 | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/external/python3/ubsan.patch.0 b/external/python3/ubsan.patch.0 index acfd1896a104..39717d2d82bc 100644 --- a/external/python3/ubsan.patch.0 +++ b/external/python3/ubsan.patch.0 @@ -1,3 +1,25 @@ +--- Modules/_ctypes/libffi/src/x86/ffi64.c ++++ Modules/_ctypes/libffi/src/x86/ffi64.c +@@ -545,11 +545,15 @@ + tramp = (volatile unsigned short *) &closure->tramp[0]; + + tramp[0] = 0xbb49; /* mov <code>, %r11 */ +- *((unsigned long long * volatile) &tramp[1]) +- = (unsigned long) ffi_closure_unix64; ++ tramp[1] = (unsigned long) ffi_closure_unix64; ++ tramp[2] = ((unsigned long) ffi_closure_unix64) >> 16; ++ tramp[3] = ((unsigned long) ffi_closure_unix64) >> 32; ++ tramp[4] = ((unsigned long) ffi_closure_unix64) >> 48; + tramp[5] = 0xba49; /* mov <data>, %r10 */ +- *((unsigned long long * volatile) &tramp[6]) +- = (unsigned long) codeloc; ++ tramp[6] = (unsigned long) codeloc; ++ tramp[7] = ((unsigned long) codeloc) >> 16; ++ tramp[8] = ((unsigned long) codeloc) >> 32; ++ tramp[9] = ((unsigned long) codeloc) >> 48; + + /* Set the carry bit iff the function uses any sse registers. + This is clc or stc, together with the first byte of the jmp. */ --- Objects/listobject.c +++ Objects/listobject.c @@ -2036,7 +2036,7 @@ |