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| author | Joe Soroka <gits@joesoroka.com> | 2011-01-23 16:46:24 -0800 |
|---|---|---|
| committer | Joe Soroka <gits@joesoroka.com> | 2011-01-23 16:46:24 -0800 |
| commit | 6839382480b86362a3dc2807bac7e4bc5d7ef469 (patch) | |
| tree | 23b20385b1f583e4a278f05b247189aa8bdfcf19 /examples | |
| parent | 2047f88334f3547b2579e368448ec6c81fd02a83 (diff) | |
| download | tinycc-6839382480b86362a3dc2807bac7e4bc5d7ef469.tar.gz tinycc-6839382480b86362a3dc2807bac7e4bc5d7ef469.tar.bz2 | |
asmtest: avoid testing against complex nop alignment in gas
.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
Diffstat (limited to 'examples')
0 files changed, 0 insertions, 0 deletions