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Hi,

I run a (relatively) current system on my new Cobalt Qube 2 (NetBSD =20
xxx.xxx.org 4.99.16 NetBSD 4.99.16 (GENERIC) #0: Wed Mar 28 14:14:11 =20
PDT 2007  builds@wb36:/home/builds/ab/HEAD/cobalt/200703280002Z-obj/=20
home/builds/ab/HEAD/src/sys/arch/cobalt/compile/GENERIC cobalt)

I want to run PostgreSQL (current) on it, and I encounter a problem =20
that might be more MIPS related than specificaly Cobalt related, but =20
here it is:

the "postgres" exe seg faults early in main when jumping to a =20
subroutine. Here are some relevant info from a gdb session:

(gdb)
79              argv =3D save_ps_display_args(argc, argv);
(gdb) stepi
0x005ae3b0      79              argv =3D save_ps_display_args(argc, =
argv);
(gdb)
0x005ae3b4      79              argv =3D save_ps_display_args(argc, =
argv);
(gdb)
79              argv =3D save_ps_display_args(argc, argv);
(gdb)

Program received signal SIGSEGV, Segmentation fault.
main (argc=3D1, argv=3D0x7fffdcc4) at main.c:79
79              argv =3D save_ps_display_args(argc, argv);


Here is a disassembly of the concerned code:

0x005ae3a8 <main+72>:   lw      gp,16(sp)
0x005ae3ac <main+76>:   move    a1,s0
0x005ae3b0 <main+80>:   lw      t9,-20988(gp)
0x005ae3b4 <main+84>:   move    a0,s3
0x005ae3b8 <main+88>:   jalr    t9

Could some one help me with this ?

gp starts at 00882de0 when entering main, and t9 ends up with 007578b0
Here is what I find in a disassembly of the postgres exe:

007578b0 <save_ps_display_args>:
   7578b0:       3c1c0013        lui     gp,0x13
   7578b4:       279cb530        addiu   gp,gp,-19152
   7578b8:       0399e021        addu    gp,gp,t9
   7578bc:       8f838110        lw      v1,-32496(gp)
   7578c0:       00a01021        move    v0,a1


I built some packages on the machine without problems (but did not =20
test extensively), like perl, bash, screen, tcl, python and more. So =20
the toolchain is not completely busted.
this is gcc (GCC) 4.1.2 20070110 prerelease (NetBSD nb1 20070110)
and GNU ld version 2.16.1

Regards,

R=E9mi Zara



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