mirror of
https://github.com/frida/tinycc
synced 2025-03-14 11:42:54 +03:00
6839382480
.align #,0x90 in gas ignores the 0x90 and outputs any kind of nop it feels like. the one avoided by this patch is a 7 byte nop, which gas has been doing since at least 1999: http://sourceware.org/ml/binutils/1999-10/msg00083.html In order to match what gas does, we would need to make code alignment target-specific, import a lot of code, and face the question: exactly which gas {version,target,tune} combo are we trying to match? see i386_align_code in: http://sourceware.org/cgi-bin/cvsweb.cgi/src/gas/config/tc-i386.c?annotate=1.460&cvsroot=src The smart noppery is turned on via the special casing of 0x90 at line 438 in md_do_align in: http://sourceware.org/cgi-bin/cvsweb.cgi/src/gas/config/tc-i386.h?annotate=1.1&cvsroot=src