labath added a comment.
I think that's because lldb's dissassembler currently just stops when it
encounters an unknown/invalid instruction :(, so it doesn't even get to the
interesting part. If I skip over the random bytes I get:
(lldb) disassemble --start 0x400ff0 --end 0x40100c
0x400ff0: addb %al, (%rax)
0x400ff2: addb %al, (%rax)
0x400ff4: addb %al, (%rax)
0x400ff6: addb %al, (%rax)
0x400ff8: addb %al, (%rax)
0x400ffa: addb %al, (%rax)
0x400ffc: addb %al, (%rax)
0x400ffe: addb %al, (%rax)
0x401000: addb %al, (%rax)
0x401002: addb %al, (%rax)
0x401004: addb %al, (%rax)
0x401006: addb %al, (%rax)
0x401008: addb %al, (%rax)
0x40100a: addb %al, (%rax)
With your patch I guess this would stop at `0x400ffe`.
Another option would be to ditch disassembling, and check this via memory
reads, as that is what you are actually fixing:
(lldb) memory read 0x400ff0 -c 20
0x00400ff0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
0x00401000: 00 00 00 00 ....
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D93939/new/
https://reviews.llvm.org/D93939
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