Bug#353618: [m68k] gcc-4.0 segfault building glibc
Please recheck with a current gcc-4.1 from experimental.
Aurelien Jarno writes:
> Package: gcc-4.0
> Version: 4.0.2-8
> Severity: important
>
> I am currently trying to build the glibc with gcc-4.0 instead of gcc-3.4
> on all arches. On m68k, I get an ICE:
>
> (unstable)aurel32@crest:~$ gcc-4.0 system.c -O -c -g -fomit-frame-pointer -o system.o
> system.c: In function '__libc_system':
> system.c:16: internal compiler error: Segmentation fault
> Please submit a full bug report,
> with preprocessed source if appropriate.
> See <URL:http://gcc.gnu.org/bugs.html> for instructions.
> For Debian GNU/Linux specific bug reporting instructions,
> see <URL:file:///usr/share/doc/gcc-4.0/README.Bugs>.
> (unstable)aurel32@crest:~$
>
> This is with a reduced testcase:
>
> extern int __libc_multiple_threads __attribute__ ((visibility ("hidden")));
>
> static int
> do_system (const char *line)
> {
> return 0;
> }
>
> int
> __libc_system (const char *line)
> {
> if (__builtin_expect (__libc_multiple_threads == 0, 1))
> return do_system (line);
>
> return 0;
> }
>
> To reproduce the bug, you need to compile this code with:
> -O (also with -O2 or -O3 on the original code, but not on the reduced
> testcase probably because optimisation is easier on it)
> AND
> -g or -g2
> AND
> -fomit-frame-pointer
>
>
>
> -- System Information:
> Debian Release: testing/unstable
> APT prefers unstable
> APT policy: (100, 'unstable')
> Architecture: m68k
> Shell: /bin/sh linked to /bin/bash
> Kernel: Linux 2.4.31
> Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968)
>
> Versions of packages gcc-4.0 depends on:
> ii binutils 2.16.1cvs20060117-1 The GNU assembler, linker and bina
> ii cpp-4.0 4.0.2-8 The GNU C preprocessor
> ii gcc-4.0-base 4.0.2-8 The GNU Compiler Collection (base
> ii libc6 2.3.5-12.1 GNU C Library: Shared libraries an
> ii libgcc2 4.0.2-8 GCC support library
>
> Versions of packages gcc-4.0 recommends:
> ii libc6-dev 2.3.5-12.1 GNU C Library: Development Librari
> pn libmudflap0-dev <none> (no description available)
>
> -- no debconf information
>
>
> --
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