Re: dwarf2 unwind info check broken

[Andreas Jaeger <aj at suse dot de>]

Jakub Jelinek <jakub@redhat.com> writes:

> On Sun, Mar 24, 2002 at 06:32:27PM +0100, Andreas Jaeger wrote:
>> Andreas Jaeger <aj@suse.de> writes:
>> 
>> > Jakub Jelinek <jakub@redhat.com> writes:
>> >
>> >> So the unwind info check should be extended to something like
>> >> (untested):
>> >
>> > I've tested this now extensivly and I'm happy with the appended
>> > version of this patch.
>> 
>> I missed one point in my testing: Building of static programs in
>> glibc:
>> 
>> /opt/gcc/3.1-devel/bin/gcc -nostdlib -nostartfiles -static -o /builds/glibc/gcc-3.1/elf/sln   /builds/glibc/gcc-3.1/csu/crt1.o /builds/glibc/gcc-3.1/csu/crti.o `/opt/gcc/3.1-devel/bin/gcc --print-file-name=crtbegin.o` /builds/glibc/gcc-3.1/elf/sln.o  /builds/glibc/gcc-3.1/libc.a -lgcc /builds/glibc/gcc-3.1/libc.a `/opt/gcc/3.1-devel/bin/gcc --print-file-name=crtend.o` /builds/glibc/gcc-3.1/csu/crtn.o
>> /opt/gcc/3.1-devel/lib/gcc-lib/i686-pc-linux-gnu/3.1/crtbegin.o: In function `__do_global_dtors_aux':
>> /opt/gcc/3.1-devel/lib/gcc-lib/i686-pc-linux-gnu/3.1/crtbegin.o(.text+0x36): undefined reference to `__deregister_frame_info_bases'
>> ...
>> 
>> We use -static but since we use -nostdlib, -lgcc_eh is not added
>> here:-(
>
> Configure should detect if -lgcc_eh exist and add it in in addition to
> -lgcc (well, for gcc-3.1+ configured with binutils 2.12 it doesn't matter),
> but for gcc-3.1+ configured with older binutils it matters.

This is with gcc 3.1 and current binutils from CVS.  But -lgcc_eh is
not added and I don't think there's code to do so,

Andreas
-- 
 Andreas Jaeger
  SuSE Labs aj@suse.de
   private aj@arthur.inka.de
    http://www.suse.de/~aj