Bug#321023: gcc-4.0 segfaults when compiling ltdl.c with -O
close 321023 4.0.1-5
thanks
apperently fixed in at least 4.0.1-5.
Dennis Brakhane writes:
> Subject: gcc-4.0 segfaults when compiling libtool's ltdl.c with -O
> Package: gcc-4.0
> Version: 4.0.1-3
> Severity: important
>
> gcc 4.0 segfaults when compiling ltdl.c with optimizations turned
> on. I doubt that this bug is specific to that particular file, but I
> have yet to find a minimal example.
>
> $ gcc -c -DHAVE_CONFIG_H -v -save-temps -I. -O2 ltdl.c Using built-in specs.
> Target: i486-linux-gnu
> Configured with: ../src/configure -v
> --enable-languages=c,c++,java,f95,objc,ada,treelang --prefix=/usr
> --enable-shared --with-system-zlib --libexecdir=/usr/lib --enable-nls
> --without-included-gettext --enable-threads=posix --program-suffix=-4.0
> --enable-__cxa_atexit --enable-libstdcxx-allocator=mt
> --enable-clocale=gnu --enable-libstdcxx-debug --enable-java-gc=boehm
> --enable-java-awt=gtk --enable-gtk-cairo
> --with-java-home=/usr/lib/jvm/java-1.4.2-gcj-4.0-1.4.2.0/jre
> --enable-mpfr --disable-werror --enable-checking=release i486-linux-gnu
> Thread model: posix
> gcc version 4.0.2 20050725 (prerelease) (Debian 4.0.1-3)
> [...]
> /usr/lib/gcc/i486-linux-gnu/4.0.2/cc1 -fpreprocessed ltdl.i -quiet
> -dumpbase ltdl.c -mtune=i486 -auxbase ltdl -O2 -version -o ltdl.s
> GNU C version 4.0.2 20050725 (prerelease) (Debian 4.0.1-3) (i486-linux-gnu)
> compiled by GNU C version 4.0.2 20050725 (prerelease) (Debian
> 4.0.1-3).
> GGC heuristics: --param ggc-min-expand=47 --param ggc-min-heapsize=31997
> ltdl.c: In function 'presym_free_symlists':
> ltdl.c:1979: internal compiler error: Speicherzugriffsfehler
>
> (gcc version 4.1.0 20050726 (experimental) does seem to work fine)
>
> The segfault does occur with -O and -O2, but not with -O0.
> ltdl.i is attached.
>
> -- System Information:
> Debian Release: testing/unstable
> APT prefers unstable
> APT policy: (500, 'unstable')
> Architecture: i386 (i686)
> Shell: /bin/sh linked to /bin/dash
> Kernel: Linux 2.6.12-1-686
> Locale: LANG=de_DE@euro, LC_CTYPE=de_DE@euro (charmap=ANSI_X3.4-1968)
> (ignored: LC_ALL set to C)
>
> Versions of packages gcc-4.0 depends on:
> ii binutils 2.16.1-2 The GNU assembler, linker
> and bina
> ii cpp-4.0 4.0.1-3 The GNU C preprocessor
> ii gcc-4.0-base 4.0.1-3 The GNU Compiler Collection
> (base
> ii libc6 2.3.2.ds1-22 GNU C Library: Shared
> libraries an
> ii libgcc1 1:4.0.1-3 GCC support library
>
> Versions of packages gcc-4.0 recommends:
> ii libc6-dev 2.3.2.ds1-22 GNU C Library: Development
> Librari
> ii libmudflap0-dev 4.0.1-3 GCC mudflap support
> libraries (dev
>
> -- no debconf information
>
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