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* Re: bootstrap/3374: Bootstrap failure with -O -fomit-frame-pointer
@ 2002-11-26 14:06 bangerth
0 siblings, 0 replies; 4+ messages in thread
From: bangerth @ 2002-11-26 14:06 UTC (permalink / raw)
To: gcc-bugs, gcc-prs, lauras, nobody
Synopsis: Bootstrap failure with -O -fomit-frame-pointer
State-Changed-From-To: open->feedback
State-Changed-By: bangerth
State-Changed-When: Tue Nov 19 12:17:42 2002
State-Changed-Why:
This is a rather old bootstrap failure. Can you please
check whether this still happens with newer versions of gcc
and report your findings?
Thanks
Wolfgang
http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=3374
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: bootstrap/3374: Bootstrap failure with -O -fomit-frame-pointer
@ 2002-11-27 8:14 bangerth
0 siblings, 0 replies; 4+ messages in thread
From: bangerth @ 2002-11-27 8:14 UTC (permalink / raw)
To: gcc-bugs, gcc-prs, lauras, nobody
Synopsis: Bootstrap failure with -O -fomit-frame-pointer
State-Changed-From-To: feedback->closed
State-Changed-By: bangerth
State-Changed-When: Tue Nov 19 16:01:06 2002
State-Changed-Why:
I just checked it, and it builds fine with present CVS 3.3,
with the given combination of flags.
http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=3374
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: bootstrap/3374: Bootstrap failure with -O -fomit-frame-pointer
@ 2002-11-27 5:52 Laurynas Biveinis
0 siblings, 0 replies; 4+ messages in thread
From: Laurynas Biveinis @ 2002-11-27 5:52 UTC (permalink / raw)
To: nobody; +Cc: gcc-prs
The following reply was made to PR bootstrap/3374; it has been noted by GNATS.
From: Laurynas Biveinis <lauras@softhome.net>
To: bangerth@dealii.org
Cc: gcc-bugs@gcc.gnu.org, gcc-prs@gcc.gnu.org, nobody@gcc.gnu.org, gcc-gnats@gcc.gnu.org
Subject: Re: bootstrap/3374: Bootstrap failure with -O -fomit-frame-pointer
Date: Tue, 19 Nov 2002 23:34:28 +0200
> Synopsis: Bootstrap failure with -O -fomit-frame-pointer
> This is a rather old bootstrap failure. Can you please
> check whether this still happens with newer versions of gcc
> and report your findings?
Hello,
Unfortunatelly I do not have resources right now to check it :(
However, the failure was encountered on very common platform
i686-pc-linux-gnu, so it would be nice if someone could spare some
CPU time to do bootstrap with
BOOT_CFLAGS="-O -fomit-frame-pointer -fno-defer-pop -fno-thread-jumps"
(Those -fno-... options are not required to reproduce debugging, IIRC.
They were added just to narrow the set of active optimizations, I
think) I'll check myself as soon as I am able to. (In a month or
two...)
Laurynas
^ permalink raw reply [flat|nested] 4+ messages in thread
* bootstrap/3374: Bootstrap failure with -O -fomit-frame-pointer
@ 2001-06-22 9:16 Laurynas Biveinis
0 siblings, 0 replies; 4+ messages in thread
From: Laurynas Biveinis @ 2001-06-22 9:16 UTC (permalink / raw)
To: gcc-gnats
>Number: 3374
>Category: bootstrap
>Synopsis: Bootstrap failure with -O -fomit-frame-pointer
>Confidential: no
>Severity: non-critical
>Priority: medium
>Responsible: unassigned
>State: open
>Class: wrong-code
>Submitter-Id: net
>Arrival-Date: Fri Jun 22 09:16:00 PDT 2001
>Closed-Date:
>Last-Modified:
>Originator: Laurynas Biveinis
>Release: 3.0 20010615 (prerelease)
>Organization:
>Environment:
System: Linux lauras.lt 2.4.5 #1 Pr Bir 18 19:52:02 EET 2001 i686 unknown
Architecture: i686
host: i686-pc-linux-gnu
build: i686-pc-linux-gnu
target: i686-pc-linux-gnu
configured with: ../configure --prefix=/usr/local
>Description:
When bootstrapping with BOOT_CFLAGS="-O -fomit-frame-pointer -fno-defer-pop \
-fno-thread-jumps", stage2 compiler gets miscompiled and thus segfaults later
on unwind-dw2.c. I think this is a miscompilation and not a problem related
directly with unwind-dw2.c, because stage2 compiler build with other
BOOT_CFLAGS options is able to compile unwind-dw2.c, using the same
optimization settings.
>How-To-Repeat:
$ mkdir obj
$ cd obj
$ ../configure --enable-languages=c
$ make bootstrap BOOT_CFLAGS="-O -fno-defer-pop -fno-thread-jumps -fomit-frame-pointer"
[...]
./xgcc -B./ -B/usr/local/i686-pc-linux-gnu/bin/ -isystem /usr/local/i686-pc-linux-gnu/include -O2 -DIN_GCC -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -isystem ./include -fPIC -g1 -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED -I. -I. -I../../gcc -I../../gcc/. -I../../gcc/config -I../../gcc/../include -fexceptions -c ../../gcc/unwind-dw2.c -o libgcc/./unwind-dw2.o
../../gcc/unwind-dw2.c: In function `extract_cie_info':
../../gcc/unwind-dw2.c:219: warning: implicit declaration of function `strlen'
../../gcc/unwind-dw2.c: In function `execute_stack_op':
../../gcc/unwind-dw2.c:300: warning: `result' might be used uninitialized in this function
../../gcc/unwind-dw2.c: In function `uw_frame_state_for':
../../gcc/unwind-dw2.c:886: warning: implicit declaration of function `memset'
../../gcc/unwind-dw2.c: In function `uw_install_context_1':
../../gcc/unwind-dw2.c:1103: warning: implicit declaration of function `memcpy'
../../gcc/unwind-dw2.c: At top level:
../../gcc/unwind-dw2.c:1123: Internal error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL: http://www.gnu.org/software/gcc/bugs.html > for instructions.
make[3]: *** [libgcc/./unwind-dw2.o] Error 1
make[3]: Leaving directory `/usr/local/cvs/gcc-3.0/gcc/obj/gcc'
make[2]: *** [libgcc.a] Error 2
make[2]: Leaving directory `/usr/local/cvs/gcc-3.0/gcc/obj/gcc'
make[1]: *** [stage2_build] Error 2
make[1]: Leaving directory `/usr/local/cvs/gcc-3.0/gcc/obj/gcc'
make: *** [bootstrap] Error 2
>Fix:
Beyond my knowledge.
>Release-Note:
>Audit-Trail:
>Unformatted:
^ permalink raw reply [flat|nested] 4+ messages in thread
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2002-11-26 14:06 bootstrap/3374: Bootstrap failure with -O -fomit-frame-pointer bangerth
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2002-11-27 8:14 bangerth
2002-11-27 5:52 Laurynas Biveinis
2001-06-22 9:16 Laurynas Biveinis
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