Mainline build problem on FC4

[Andrew MacLeod <amacleod at redhat dot com>]

OK, so I wasn't just wacko last week.  Mainline fails to build on Fedora
Core 4 (with all the latest updates,  kernel 2111) when built with
checking disabled.  Diego verified this on a second FC4 box.  

The compile fails when building crtfastmath during stage2.

It doesn't happen when checking is enabled, nor does it happen on FC5
under any circumstance I have found.


/build/gcc/2006-06-19-nc/./gcc/xgcc -B/build/gcc/2006-06-19-nc/./gcc/ -B/install/gcc-nc/i686-pc-linux-gnu/bin/ -B/install/gcc-nc/i686-pc-linux-gnu/lib/ -isystem /install/gcc-nc/i686-pc-linux-gnu/include -isystem /install/gcc-nc/i686-pc-linux-gnu/sys-include -O2  -O2 -g -O2  -DIN_GCC    -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition  -isystem ./include  -fPIC -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED  -msse -c \
        /src/gcc/2006-06-19/gcc/gcc/config/i386/crtfastmath.c \
        -o crtfastmath.o
/bin/sh /src/gcc/2006-06-19/gcc/gcc/../move-if-change tmp-macro_list macro_list
*** glibc detected *** /build/gcc/2006-06-19-nc/./gcc/cc1: malloc(): memory corruption: 0x08591630 ***
======= Backtrace: =========
/lib/libc.so.6[0x5ee1a2]
/lib/libc.so.6(malloc+0x74)[0x5ef587]
/lib/libc.so.6[0x5af193]
/lib/libc.so.6[0x5ad498]
/lib/libc.so.6[0x5ace25]
/lib/libc.so.6(__dcgettext+0x43)[0x5abed7]
/lib/libc.so.6(strsignal+0x13c)[0x5f4a13]
/build/gcc/2006-06-19-nc/./gcc/cc1[0x830e5b2]
======= Memory map: ========
0055d000-0055e000 r-xp 0055d000 00:00 0          [vdso]
0055e000-00578000 r-xp 00000000 fd:00 5499650    /lib/ld-2.3.6.so
00578000-00579000 r-xp 00019000 fd:00 5499650    /lib/ld-2.3.6.so
00579000-0057a000 rwxp 0001a000 fd:00 5499650    /lib/ld-2.3.6.so
0058a000-006ad000 r-xp 00000000 fd:00 5499657    /lib/libc-2.3.6.so
006ad000-006af000 r-xp 00122000 fd:00 5499657    /lib/libc-2.3.6.so
006af000-006b1000 rwxp 00124000 fd:00 5499657    /lib/libc-2.3.6.so
006b1000-006b3000 rwxp 006b1000 00:00 0
00a29000-00a33000 r-xp 00000000 fd:00 16893261   /build/gcc/2006-06-19-nc/prev-gcc/libgcc_s.so.1
00a33000-00a34000 rwxp 00009000 fd:00 16893261   /build/gcc/2006-06-19-nc/prev-gcc/libgcc_s.so.1
08048000-084cf000 r-xp 00000000 fd:00 16926839   /build/gcc/2006-06-19-nc/gcc/cc1
084cf000-084d4000 rw-p 00486000 fd:00 16926839   /build/gcc/2006-06-19-nc/gcc/cc1
084d4000-085a0000 rw-p 084d4000 00:00 0          [heap]
b7b00000-b7b21000 rw-p b7b00000 00:00 0
b7b21000-b7c00000 ---p b7b21000 00:00 0
b7c87000-b7dd8000 rw-p b7c87000 00:00 0
b7dd8000-b7fd8000 r--p 00000000 fd:00 201117     /usr/lib/locale/locale-archive
b7fd8000-b7fd9000 rw-p b7fd8000 00:00 0
b7ffe000-b8000000 rw-p b7ffe000 00:00 0
bffe8000-bffff000 rw-p bffe8000 00:00 0          [stack]
xgcc: Internal error: Segmentation fault (program cc1)
Please submit a full bug report.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
make[3]: *** [crtfastmath.o] Error 1
make[3]: *** Waiting for unfinished jobs....
echo timestamp > s-macro_list
make[3]: *** Waiting for unfinished jobs....
rm fsf-funding.pod gcov.pod gfdl.pod cpp.pod gpl.pod gcc.pod
make[3]: Leaving directory `/build/gcc/2006-06-19-nc/gcc'
make[2]: *** [all-stage2-gcc] Error 2
make[2]: Leaving directory `/build/gcc/2006-06-19-nc'
make[1]: *** [stage2-bubble] Error 2
make[1]: Leaving directory `/build/gcc/2006-06-19-nc'
make: *** [all] Error 2
 


Has anyone else encountered this?  I'm checking back to see when/if this
suddenly appeared.  It also happens with a much earlier version of the
kernel. If I recall from my poking around earlier last week, bitmap.o
get miscompiled in stage1, but take that with a grain of salt.. a lot of
things were going on last week and I don't know if that is still true
today.

Andrew