From 28f540f45bbacd939bfd07f213bcad2bf730b1bf Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Sat, 18 Feb 1995 01:27:10 +0000 Subject: initial import --- sysdeps/unix/bsd/Attic/osf1/alpha/brk.S | 53 +++++++++++++++++++++++++++++++++ 1 file changed, 53 insertions(+) create mode 100644 sysdeps/unix/bsd/Attic/osf1/alpha/brk.S (limited to 'sysdeps/unix/bsd/Attic/osf1/alpha/brk.S') diff --git a/sysdeps/unix/bsd/Attic/osf1/alpha/brk.S b/sysdeps/unix/bsd/Attic/osf1/alpha/brk.S new file mode 100644 index 0000000000..111f3397af --- /dev/null +++ b/sysdeps/unix/bsd/Attic/osf1/alpha/brk.S @@ -0,0 +1,53 @@ +/* Copyright (C) 1993, 1995 Free Software Foundation, Inc. + Contributed by Brendan Kehoe (brendan@zen.org). + +The GNU C Library is free software; you can redistribute it and/or +modify it under the terms of the GNU Library General Public License as +published by the Free Software Foundation; either version 2 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 +Library General Public License for more details. + +You should have received a copy of the GNU Library General Public +License along with the GNU C Library; see the file COPYING.LIB. If +not, write to the Free Software Foundation, Inc., 675 Mass Ave, +Cambridge, MA 02139, USA. */ + +#include + +#ifndef SYS_brk +#define SYS_brk 17 +#endif + +#ifndef HAVE_GNU_LD +#define __end end +#endif + +.data + .extern __end,8 + .globl __curbrk +__curbrk: + .quad __end + +.text +ENTRY(__brk) + ! FIXME We do not check for asking for less than a page yet. + ldiq v0, SYS_brk + call_pal PAL_callsys + bne a3, error + + /* Update __curbrk and exit cleanly. */ +! ldgp gp, 0(t12) + stl a0, __curbrk + + mov zero, v0 + ret + /* What a horrible way to die. */ +error: ldgp gp,0(gp) + jmp zero,syscall_error + .end __brk + +weak_alias (__brk, brk) -- cgit v1.2.1