Open elikaski opened 4 years ago
Compiling a simple Hello World program generates assembly code that contains:
# (external call) movl (sp), %esp # <REQ> movl $printf, (external)
When using post/xor.py (and other post scripts), the corresponding instructions generated are:
# (external call) #xor> movl (sp), %esp # <REQ> xorl %ebx, %ebx xorl (sp), %ebx xorl %esp # <REQ>, %ebx xorl %ebx, %esp # <REQ>
The third instruction is the problematic: xorl %esp # <REQ>, %ebx
xorl %esp # <REQ>, %ebx
The root cause is that the comment (# <REQ>) is also being identified as the "destination" register My change makes it discard the comment
# <REQ>
Compiling a simple Hello World program generates assembly code that contains:
When using post/xor.py (and other post scripts), the corresponding instructions generated are:
The third instruction is the problematic:
xorl %esp # <REQ>, %ebxThe root cause is that the comment (
# <REQ>) is also being identified as the "destination" register My change makes it discard the comment