Messages in this thread | ![/](/images/icornerl.gif) | | Date | Mon, 30 Jun 2003 09:42:59 +0400 | From | Oleg Drokin <> | Subject | Re: 2.5.73 on alpha/smp build failure |
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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)"
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