This is the mail archive of the
libc-hacker@sourceware.cygnus.com
mailing list for the glibc project.
egcs-19980921 on i586-linux miscompiles ld-linux.so.2 in glibc-2.0.96
- To: libc-alpha@cygnus.com
- Subject: egcs-19980921 on i586-linux miscompiles ld-linux.so.2 in glibc-2.0.96
- From: Horst von Brand <vonbrand@sleipnir.valparaiso.cl>
- Date: Sat, 26 Sep 1998 23:07:39 -0400
- cc: egcs-bugs@cygnus.com
>Submitter-Id: net
>Originator: Horst von Brand
>Organization:
Horst von Brand vonbrand@sleipnir.valparaiso.cl
Casilla 9G, Viña del Mar, Chile +56 32 672616
>
>Confidential: no
>Synopsis: Crash of ld-linux.so.2 when compiled with egcs snapshot
>Severity: critical
>Priority: high
>Category: libc
>Class: sw-bug
>Release: libc-2.0.96
>Environment:
Host type: i586-redhat-linux-gnu
System: Linux sleipnir 2.1.123 #6 Wed Sep 23 21:07:17 CLT 1998 i586 unknown
Architecture: i586
Addons: crypt linuxthreads
Build CFLAGS: -O2 -march=pentium
Build CC: gcc
Compiler version: egcs-2.92.11 19980921 (gcc2 ss-980609 experimental)
Kernel headers: 2.1.123
Symbol versioning: yes
Build static: yes
Build shared: yes
Build pic-default: no
Build profile: yes
Build omitfp: yes
Build bounded: no
Build static-nss: no
Stdio: libio
>Description:
All executables I've tried to run end with (line folded for
readability):
$ LD_LIBRARY_PATH=/usr/src/build/build-glibc-2.0.96 \
/usr/src/build/build-glibc-2.0.96/elf/ld-linux.so.2 /bin/ls
/bin/ls: ä?:
Segmentation fault
gdb confirms that it is ld-linux.so.2 who crashes. The weird string
shown is always the same. It is also given when the LD_LIBRARY_PATH
is omitted. The same error ensues with /sbin/sln (a staticly linked
executable). od on the output gives:
vonbrand@sleipnir:/tmp$ od -c < /tmp/out
0000000 / b i n / l s : 344 ? 001 : \n
With egcs-2.91.57 (egcs-1.1) everything works fine, AFAIKS. There is
an error message when omitting LD_LIBRARY_PATH in this case, however
(long line folded):
/bin/ls: error in loading shared libraries: /lib/libc.so.6: \
symbol _dl_default_scope, version GLIBC_2.0 not defined in file \
ld-linux.so.2 with link time reference
BTW, I'm using binutils-2.9.1.0.13. Kernel is 2.1.123pre2 compiled
with egcs-1.1, binutils-2.9.1.0.13
>How-To-Repeat:
(See above) The problem surfaced when the build tried to run
the new rpcgen. The program itself runs correctly with my old
setup (glibc-2.0.95, built with egcs on some linux-2.1.xxx.
Sorry, I have no further details...)
>Fix:
Don't use that particular egcs snapshot.