[Bug c/47842] New: gcc forces 16-byte stack alignment on Solaris i386, when SYSV requires word alignment

[yuri at tsoft dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47842

           Summary: gcc forces 16-byte stack alignment on Solaris i386,
                    when SYSV requires word alignment
           Product: gcc
           Version: 4.5.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: yuri@tsoft.com


Linux made a decision to switch to 16-byte alignment, but not others.

I know for a fact that Solaris is affected, I am not sure, but FreeBSD i386
might also be affected.

Please turn this behavior back to the one prescribed by specification for
Solaris (and FreeBSD if affected):
http://www.sco.com/developers/devspecs/abi386-4.pdf
section 3-10: "The stack is word aligned. Although the architecture does not
require any alignment of the stack, software convention and the operating
system requires that the stack be aligned on a word boundary."

Or please refer to the Sun/Oracle decision to change this behavior.