Re: Bad code generated with -mabi=ms?
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David Given <dg@xxxxxxxxxxx> writes: > On 20/03/12 16:45, Ian Lance Taylor wrote: > [...] >> I can recreate this problem with gcc 4.6, but not with gcc 4.7. >> >> I think it's a bug in gcc 4.6 that was fixed by this patch: >> >> http://gcc.gnu.org/ml/gcc-patches/2011-03/msg01664.html > > Do you know if there are any workarounds? Installing 4.7 isn't an option > for us, unfortunately. > > (Do I get the impression nobody actually uses -mabi=ms much?) The workaround is to not use -mabi=ms when compiling in 32-bit mode. In 32-bit mode the sysv ABI and the ms ABI are almost identical. They are significantly different in 64-bit mode. In 32-bit mode, I think the sysv and ms ABI are identical unless you use the -mrtd command line option. Ian