From fea1b23bcf0b9ef29af0968f5adf1e822ca874ae Mon Sep 17 00:00:00 2001 From: Eric Andersen Date: Mon, 4 Feb 2002 10:07:51 +0000 Subject: Adjust sparc port do it now actually works. -Erik --- libc/sysdeps/linux/sparc/brk.c | 49 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 libc/sysdeps/linux/sparc/brk.c (limited to 'libc/sysdeps/linux/sparc/brk.c') diff --git a/libc/sysdeps/linux/sparc/brk.c b/libc/sysdeps/linux/sparc/brk.c new file mode 100644 index 000000000..16a5e3942 --- /dev/null +++ b/libc/sysdeps/linux/sparc/brk.c @@ -0,0 +1,49 @@ +/* brk system call for Linux/i386. + Copyright (C) 1995, 1996, 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + 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. */ + +#include +#include +#include + + +/* This must be initialized data because commons can't have aliases. */ +void *___brk_addr = 0; + + +int brk (void *addr) +{ + void *newbrk; + + { + register void *o0 __asm__("%o0") = addr; + register int g1 __asm__("%g1") = 17 ; + __asm ("t 0x10" : "=r"(o0) : "r"(g1), "0"(o0) : "cc"); + newbrk = o0; + } + + ___brk_addr = newbrk; + + if (newbrk < addr) + { + __set_errno (ENOMEM); + return -1; + } + + return 0; +} -- cgit v1.2.3