From 46d7de1907b6d575d9f156c1f93e0e8dd6254674 Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Tue, 13 Feb 1996 11:38:58 +0000 Subject: Sat Feb 10 13:09:03 1996 Andreas Schwab * sysdeps/unix/sysv/linux/m68k/brk.c, sysdeps/unix/sysv/linux/m68k/mmap.S, sysdeps/unix/sysv/linux/m68k/select.S, sysdeps/unix/sysv/linux/m68k/sigcontext.h, sysdeps/unix/sysv/linux/m68k/sigreturn.S, sysdeps/unix/sysv/linux/m68k/socket.S, sysdeps/unix/sysv/linux/m68k/syscall.S, sysdeps/unix/sysv/linux/m68k/sysdep.S, sysdeps/unix/sysv/linux/m68k/sysdep.h: New files. * sysdeps/unix/sysv/linux/m68k/brk.c, sysdeps/unix/sysv/linux/m68k/mmap.S, sysdeps/unix/sysv/linux/m68k/select.S, sysdeps/unix/sysv/linux/m68k/sigcontext.h, sysdeps/unix/sysv/linux/m68k/sigreturn.S, sysdeps/unix/sysv/linux/m68k/socket.S, sysdeps/unix/sysv/linux/m68k/syscall.S, sysdeps/unix/sysv/linux/m68k/sysdep.S, sysdeps/unix/sysv/linux/m68k/sysdep.h: New files. --- sysdeps/unix/sysv/linux/m68k/brk.c | 52 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 52 insertions(+) create mode 100644 sysdeps/unix/sysv/linux/m68k/brk.c (limited to 'sysdeps/unix/sysv/linux/m68k/brk.c') diff --git a/sysdeps/unix/sysv/linux/m68k/brk.c b/sysdeps/unix/sysv/linux/m68k/brk.c new file mode 100644 index 0000000000..3fd547545e --- /dev/null +++ b/sysdeps/unix/sysv/linux/m68k/brk.c @@ -0,0 +1,52 @@ +/* brk system call for Linux/m68k. +Copyright (C) 1996 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 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 +#include +#include + +void *__curbrk; + +int +__brk (void *addr) +{ + void *newbrk; + + { + register long d0 __asm__ ("%d0"); + + asm ("move%.l %2, %%d1\n" + "trap #0" /* Perform the system call. */ + : "=d" (d0) + : "0" (SYS_ify (brk)), "g" (addr) + : "%d0", "%d1"); + newbrk = (void *) d0; + } + __curbrk = newbrk; + + if (newbrk < addr) + { + errno = ENOMEM; + return -1; + } + + return 0; +} +weak_alias (__brk, brk) + -- cgit v1.2.3