cannot install glibc-2.2.3 on Linux/ppc

[Christian Groessler <cpg at aladdin dot de>]

Hi,

I tried to install glibc-2.2.3 on a debian 2.2 potato ppc system.

The final installation fails, since the elf/sln program segfaults.

Here is a gdb trace:


[muc-twinppc:/local/glibc-build2]$ gdb elf/sln
GNU gdb 4.18
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GDB is free software, covered by the GNU General Public License, and you are
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There is absolutely no warranty for GDB.  Type "show warranty" for details.
This GDB was configured as "powerpc-unknown-linux-gnu"...
(gdb) break atexit
Breakpoint 1 at 0x100008a8: file atexit.c, line 31.
(gdb) r
Starting program: /local/glibc-build2/elf/sln 

Breakpoint 1, atexit (func=0x1004d4d0 <_fini>) at atexit.c:31
31        return __cxa_atexit ((void (*) (void *)) func, NULL,
(gdb) x/10i $pc
0x100008a8 <atexit+12>: lis     r9,0
0x100008ac <atexit+16>: addi    r0,r9,0
0x100008b0 <atexit+20>: lwz     r11,0(r9)
0x100008b4 <atexit+24>: srawi   r9,r0,31
0x100008b8 <atexit+28>: xor     r5,r9,r0
0x100008bc <atexit+32>: subf    r5,r5,r9
0x100008c0 <atexit+36>: srawi   r5,r5,31
0x100008c4 <atexit+40>: and     r5,r11,r5
0x100008c8 <atexit+44>: li      r4,0
0x100008cc <atexit+48>: bl      0x100008e0 <__cxa_atexit>
(gdb) stepi 
0x100008ac      31        return __cxa_atexit ((void (*) (void *)) func, NULL,
(gdb) 
0x100008b0      31        return __cxa_atexit ((void (*) (void *)) func, NULL,
(gdb) 

Program received signal SIGSEGV, Segmentation fault.
0x100008b0 in atexit (func=0x1004d4d0 <_fini>) at atexit.c:31
31        return __cxa_atexit ((void (*) (void *)) func, NULL,
(gdb) inf reg r9
r9             0x0      0
(gdb) 


The offending part in stdlib/atexit.c is this:

int
atexit (void (*func) (void))
{
  return __cxa_atexit ((void (*) (void *)) func, NULL,
                       &__dso_handle == NULL ? NULL : __dso_handle);
}


It seems the &__dso_handle == NULL check isn't performed by the
compiler.
I tried with gcc-2.95.2 (which comes with debian) and 2.95.3.

regards,
chris