Messages in this thread |  | | | Date | Mon, 30 Jun 2003 09:42:59 +0400 | | From | Oleg Drokin <> | | Subject | Re: 2.5.73 on alpha/smp build failure | |
Hello!
On Sun, Jun 29, 2003 at 03:56:16PM +0400, Ivan Kokshaysky wrote:
> > When I compile the kernel the alpha itself (tried shipped suse 8.1 gcc 3.2.2
> > and self-compiled gcc 2.95.3), it jumps to the address zero quickly after
> > launching init and panics.
> Most likely it's binutils problem. Versions 2.13.90.0.18 and newer
> should be OK, as discussed recently on l-k.
I have :
$ alphaev56-unknown-linux-gnu-size -V
GNU size 2.14 20030612
Copyright 2002 Free Software Foundation, Inc.
This program is free software; you may redistribute it under the terms of
the GNU General Public License. This program has absolutely no warranty.
Also I tried to compare assembly output of native vs crosscompiler and have found the result to be
different substantionally (unfortunatelly I cannot understand alpha assembly, but I see the
code looks different in the beginning. Also assembly file generated by cross-gcc produces
wrong result after translated/linked using native binutils). I assume that binutils are not involved in
"gcc -S" process.
See attached assembly generated by cross compiler vs native compiler.
Bye,
Oleg
.file 1 "test.c"
.set noat
.set noreorder
.arch ev56
.section .rodata
$LC0:
.ascii "vs-500: unknown uniqueness %d\12\0"
$LC1:
.ascii "result is %d\12\0"
.text
.align 5
.globl main
.ent main
main:
.frame $30,0,$26,0
.mask 0x4000000,0
ldgp $29,0($27)
$main..ng:
lda $30,-16($30)
lda $16,$LC0
lda $17,-2
stq $26,0($30)
.prologue 1
zapnot $17,15,$17
jsr $26,printf
ldgp $29,0($26)
nop
lda $16,$LC1
lda $17,15
jsr $26,printf
ldgp $29,0($26)
ldq $26,0($30)
mov $31,$0
lda $30,16($30)
ret $31,($26),1
.end main
.ident "GCC: (GNU) 2.95.3 20010315 (release)" .file 1 "test.c"
.set noat
.set noreorder
.arch ev56
.section .rodata
$LC0:
.ascii "vs-500: unknown uniqueness %d\12\0"
$LC1:
.ascii "result is %d\12\0"
.text
.align 5
.globl main
.ent main
main:
.frame $30,16,$26,0
.mask 0x4000000,-16
ldgp $29,0($27)
$main..ng:
lda $30,-16($30)
lda $16,$LC1
stq $26,0($30)
.prologue 1
lda $17,1
jsr $26,printf
ldgp $29,0($26)
ldq $26,0($30)
mov $31,$0
lda $30,16($30)
ret $31,($26),1
.end main
.ident "GCC: (GNU) 2.95.3 20010315 (release)" |  |