diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/alpha/brk.S')
| -rw-r--r-- | sysdeps/unix/sysv/linux/alpha/brk.S | 81 |
1 files changed, 0 insertions, 81 deletions
diff --git a/sysdeps/unix/sysv/linux/alpha/brk.S b/sysdeps/unix/sysv/linux/alpha/brk.S deleted file mode 100644 index e01abebe0e..0000000000 --- a/sysdeps/unix/sysv/linux/alpha/brk.S +++ /dev/null @@ -1,81 +0,0 @@ -/* Copyright (C) 1993, 1995, 1996, 1997 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Brendan Kehoe <brendan@zen.org>, 1993. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -/* __brk is a special syscall under Linux since it never returns an - error. Instead, the error condition is indicated by returning the old - break value (instead of the new, requested one). */ - -#include <sysdep.h> -#define _ERRNO_H -#include <bits/errno.h> - -#ifdef PIC -.section .bss - .align 3 - .globl __curbrk -__curbrk: .skip 8 - .type __curbrk,@object - .size __curbrk,8 -#else -.comm __curbrk, 8 -#endif - - .text -LEAF(__brk, 8) - ldgp gp, 0(t12) - subq sp, 8, sp -#ifdef PROF - .set noat - lda AT, _mcount - jsr AT, (AT), _mcount - .set at -#endif - .prologue 1 - - /* Save the requested brk across the system call. */ - stq a0, 0(sp) - - ldiq v0, __NR_brk - call_pal PAL_callsys - - ldq a0, 0(sp) - - /* Be prepared for an OSF-style brk. */ - bne a3, $err1 - beq v0, $ok - - /* Correctly handle the brk(0) query case. */ - cmoveq a0, v0, a0 - xor a0, v0, t0 - bne t0, $err0 - - /* Update __curbrk and return cleanly. */ - mov zero, v0 -$ok: stq a0, __curbrk - addq sp, 8, sp - ret - - /* What a horrible way to die. */ -$err0: ldi v0, ENOMEM -$err1: addq sp, 8, sp - SYSCALL_ERROR_HANDLER - - END(__brk) - -weak_alias (__brk, brk) |