[Bug bootstrap/45518] [4.6 regression] bootstrap failure on sparc64-unknown-linux-gnu
--- Comment #6 from ebotcazou at gcc dot gnu dot org 2010-09-06 20:33 --- SPARC64/Solaris is also broken (but SPARC/Solaris is OK). -- ebotcazou at gcc dot gnu dot org changed: What|Removed |Added CC||ebotcazou at gcc dot gnu dot ||org Status|UNCONFIRMED |NEW Ever Confirmed|0 |1 Last reconfirmed|-00-00 00:00:00 |2010-09-06 20:33:38 date|| http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45518
[Bug bootstrap/45518] [4.6 regression] bootstrap failure on sparc64-unknown-linux-gnu
--- Comment #7 from mikpe at it dot uu dot se 2010-09-06 21:05 --- (In reply to comment #5) /mnt/scratch/objdir/./gcc/xgcc -B/mnt/scratch/objdir/./gcc/ -B/mnt/scratch/install/sparc64-unknown-linux-gnu/bin/ -B/mnt/scratch/install/sparc64-unknown-linux-gnu/lib/ -isystem /mnt/scratch/install/sparc64-unknown-linux-gnu/include -isystem /mnt/scratch/install/sparc64-unknown-linux-gnu/sys-include-g -O2 -m32 -O2 -g -O2 -DIN_GCC -W -Wall -Wwrite-strings -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition -isystem ./include -fPIC -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED -I. -I. -I../../.././gcc -I/mnt/scratch/gcc-4.6-r163858/libgcc -I/mnt/scratch/gcc-4.6-r163858/libgcc/. -I/mnt/scratch/gcc-4.6-r163858/libgcc/../gcc -I/mnt/scratch/gcc-4.6-r163858/libgcc/../include -I/mnt/scratch/gcc-4.6-r163858/libgcc/../libdecnumber/dpd -I/mnt/scratch/gcc-4.6-r163858/libgcc/../libdecnumber -DHAVE_CC_TLS -o _muldi3.o -MT _muldi3.o -MD -MP -MF _muldi3.dep -DL_muldi3 -c /mnt/scratch/gcc-4.6-r163858/libgcc/../gcc/libgcc2.c \ -fvisibility=hidden -DHIDE_EXPORTS /mnt/scratch/gcc-4.6-r163858/libgcc/../gcc/libgcc2.c: In function '__muldi3': /mnt/scratch/gcc-4.6-r163858/libgcc/../gcc/libgcc2.c:558:1: internal compiler error: in find_mem_expr_in_1pdv, at var-tracking.c:4120 I haven't attempted to bisect this yet. Bisection identified r163383, Bernd's 4-insn combine patch, as the cause for this regression. However, it got fixed today by r163917, Andreas Krebbel's fix for an s390x regression from r163383. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45518
[Bug bootstrap/45518] [4.6 regression] bootstrap failure on sparc64-unknown-linux-gnu
--- Comment #5 from mikpe at it dot uu dot se 2010-09-05 10:07 ---
(In reply to comment #4)
Subject: Re: [4.6 regression] bootstrap failure on
sparc64-unknown-linux-gnu
On Sat, Sep 04, 2010 at 01:38:34PM -, mikpe at it dot uu dot se wrote:
Can you show us the complete configure options you used?
gcc63 is down at the moment for scheduled maintenance, so I can't quote
exactly. As best I can recall, it was:
CC='gcc -m64' /path/to/configure --disable-lib{mudflap,ssp,gomp} \
--enable-languages=c --disable-nls --enable-threads=posix \
--with-mpfr=/opt/cfarm/mpfr-2.4.1-64 \
--with-gmp=/opt/cfarm/gmp-4.2.4-64 --with-mpc=/opt/cfarm/mpc-0.8-64
This is similar (modulo paths) to what I tried unsuccessfully to do. The
problem was the CC='gcc -m64' override; somehow that caused the stage2
attempt to configure 32-bit zlib to fail because it passed a completely bogus
path to prev-gcc as CC. The same error occurred when trying to build a pure
64-bit gcc-4.5.1, but it did work for building a 64-bit gcc-4.4.4.
I then used my 64-bit 4.4.4 to build a 64-bit 4.5.1 (just setting PATH, not
CC), and then the 64-bit 4.5.1 to build a 64-bit 4.6-r163858. The last build
ICEd in stage2 when trying to build a 32-bit _muldi3 for libgcc:
/mnt/scratch/objdir/./gcc/xgcc -B/mnt/scratch/objdir/./gcc/
-B/mnt/scratch/install/sparc64-unknown-linux-gnu/bin/
-B/mnt/scratch/install/sparc64-unknown-linux-gnu/lib/ -isystem
/mnt/scratch/install/sparc64-unknown-linux-gnu/include -isystem
/mnt/scratch/install/sparc64-unknown-linux-gnu/sys-include-g -O2 -m32 -O2
-g -O2 -DIN_GCC -W -Wall -Wwrite-strings -Wcast-qual -Wstrict-prototypes
-Wmissing-prototypes -Wold-style-definition -isystem ./include -fPIC -g
-DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED -I. -I.
-I../../.././gcc -I/mnt/scratch/gcc-4.6-r163858/libgcc
-I/mnt/scratch/gcc-4.6-r163858/libgcc/.
-I/mnt/scratch/gcc-4.6-r163858/libgcc/../gcc
-I/mnt/scratch/gcc-4.6-r163858/libgcc/../include
-I/mnt/scratch/gcc-4.6-r163858/libgcc/../libdecnumber/dpd
-I/mnt/scratch/gcc-4.6-r163858/libgcc/../libdecnumber -DHAVE_CC_TLS -o
_muldi3.o -MT _muldi3.o -MD -MP -MF _muldi3.dep -DL_muldi3 -c
/mnt/scratch/gcc-4.6-r163858/libgcc/../gcc/libgcc2.c \
-fvisibility=hidden -DHIDE_EXPORTS
/mnt/scratch/gcc-4.6-r163858/libgcc/../gcc/libgcc2.c: In function '__muldi3':
/mnt/scratch/gcc-4.6-r163858/libgcc/../gcc/libgcc2.c:558:1: internal compiler
error: in find_mem_expr_in_1pdv, at var-tracking.c:4120
I haven't attempted to bisect this yet.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45518
[Bug bootstrap/45518] [4.6 regression] bootstrap failure on sparc64-unknown-linux-gnu
--- Comment #3 from mikpe at it dot uu dot se 2010-09-04 13:38 --- Can you show us the complete configure options you used? I'm trying to build gcc-4.6 for sparc64-linux w/o --with-cpu=v8 (so it defaults to 64-bit mode) and I can't get past an error after stage1 where it tries to configure a 32-bit zlib but passes the wrong path to prev-gcc. -- mikpe at it dot uu dot se changed: What|Removed |Added CC||mikpe at it dot uu dot se http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45518
[Bug bootstrap/45518] [4.6 regression] bootstrap failure on sparc64-unknown-linux-gnu
--- Comment #4 from froydnj at codesourcery dot com 2010-09-05 01:38
---
Subject: Re: [4.6 regression] bootstrap failure on
sparc64-unknown-linux-gnu
On Sat, Sep 04, 2010 at 01:38:34PM -, mikpe at it dot uu dot se wrote:
Can you show us the complete configure options you used?
gcc63 is down at the moment for scheduled maintenance, so I can't quote
exactly. As best I can recall, it was:
CC='gcc -m64' /path/to/configure --disable-lib{mudflap,ssp,gomp} \
--enable-languages=c --disable-nls --enable-threads=posix \
--with-mpfr=/opt/cfarm/mpfr-2.4.1-64 \
--with-gmp=/opt/cfarm/gmp-4.2.4-64 --with-mpc=/opt/cfarm/mpc-0.8-64
The --with-* options are specific to compile farm machines.
I talked to Bernd and he had some suggestions for figuring out exactly
what gets miscompiled; due to gcc63 downtime, I haven't had a change to
try those yet.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45518
[Bug bootstrap/45518] [4.6 regression] bootstrap failure on sparc64-unknown-linux-gnu
--- Comment #1 from rguenth at gcc dot gnu dot org 2010-09-03 13:27 --- How does it fail? -- rguenth at gcc dot gnu dot org changed: What|Removed |Added Target Milestone|--- |4.6.0 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45518
[Bug bootstrap/45518] [4.6 regression] bootstrap failure on sparc64-unknown-linux-gnu
--- Comment #2 from froydnj at codesourcery dot com 2010-09-03 13:34
---
Subject: Re: [4.6 regression] bootstrap failure on
sparc64-unknown-linux-gnu
configure says:
checking for C compiler default output file name... a.out
checking whether the C compiler works... configure: error: in
home/froydnj/build-mainline/intl':
configure: error: cannot run C compiled programs.
The compiled program for:
int
main (void)
{
return 0;
}
segfaults. gdb says:
(gdb) run
Starting program: /home/froydnj/build-mainline/intl/a.out
Program received signal SIGSEGV, Segmentation fault.
0x0010059c in __do_global_ctors_aux ()
Current language: auto
The current source language is auto; currently asm.
(gdb) where
#0 0x0010059c in __do_global_ctors_aux ()
#1 0x001003b0 in _init ()
#2 0x00100518 in __libc_csu_init ()
#3 0xf80100157fd0 in __libc_start_main () from /lib64/libc.so.6
#4 0x001003f4 in _start ()
(gdb)
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45518
