openssh bugs - May 2010 - [Bug 1772] New: There are some strict-aliasing warnings during the compillation

https://bugzilla.mindrot.org/show_bug.cgi?id=1772

           Summary: There are some strict-aliasing warnings during the
                    compillation
           Product: Portable OpenSSH
           Version: 5.5p1
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Build system
        AssignedTo: unassigned-bugs at mindrot.org
        ReportedBy: jchadima at redhat.com


The gcc's strict-aliasing warnings may lead to problems in optimization
time, especially in newer versions of the compiler. 

there are the occurences of the warnings:

channels.c :
((struct in_addr *)&dest_addr)->s_addr = INADDR_ANY;

monitor_fdpass.c:
*(int *)CMSG_DATA(cmsg) = fd;
fd = (*(int *)CMSG_DATA(cmsg));

umac.c:
*(UINT32 *)tmp_nonce_lo = ((UINT32 *)nonce)[1];
if ( (((UINT32 *)tmp_nonce_lo)[0] != ((UINT32 *)pc->nonce)[1]) ||
         (((UINT32 *)nonce)[0] != ((UINT32 *)pc->nonce)[0]) )

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https://bugzilla.mindrot.org/show_bug.cgi?id=1772

Damien Miller <djm at mindrot.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |djm at mindrot.org

--- Comment #1 from Damien Miller <djm at mindrot.org>  ---
We set -fno-strict-aliasing already for gcc4:


if test "$GCC" = "yes" || test "$GCC" =
"egcs"; then
        CFLAGS="$CFLAGS -Wall -Wpointer-arith -Wuninitialized"
        GCC_VER=`$CC -v 2>&1 | $AWK '/gcc version /{print $3}'`
        case $GCC_VER in
                1.*) no_attrib_nonnull=1 ;;
                2.8* | 2.9*)
                     CFLAGS="$CFLAGS -Wsign-compare"
                     no_attrib_nonnull=1
                     ;;
                2.*) no_attrib_nonnull=1 ;;
                3.*) CFLAGS="$CFLAGS -Wsign-compare -Wformat-security"
;;
                4.*) CFLAGS="$CFLAGS -Wsign-compare -Wno-pointer-sign
-Wformat-s
ecurity -fno-strict-aliasing" ;;
                *) ;;
        esac

Is there something in your environment that is skipping this test?

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https://bugzilla.mindrot.org/show_bug.cgi?id=1772

jchadima at redhat.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jchadima at redhat.com
             Status|NEW                         |RESOLVED
         Resolution|                            |WORKSFORME

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Damien Miller <djm at mindrot.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |CLOSED

--- Comment #2 from Damien Miller <djm at mindrot.org> 2011-01-24 12:33:41
EST ---
Move resolved bugs to CLOSED after 5.7 release

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