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| author | Roland McGrath <roland@gnu.org> | 1996-02-13 11:38:58 +0000 |
|---|---|---|
| committer | Roland McGrath <roland@gnu.org> | 1996-02-13 11:38:58 +0000 |
| commit | 46d7de1907b6d575d9f156c1f93e0e8dd6254674 (patch) | |
| tree | 32de703090640fe1e571bd28d255cf03f91a3e44 /sysdeps/unix/sysv/linux/m68k/brk.c | |
| parent | 4eea716e2dff234d74812ccd622baeeec9518e65 (diff) | |
| download | glibc-46d7de1907b6d575d9f156c1f93e0e8dd6254674.tar glibc-46d7de1907b6d575d9f156c1f93e0e8dd6254674.tar.gz glibc-46d7de1907b6d575d9f156c1f93e0e8dd6254674.tar.bz2 glibc-46d7de1907b6d575d9f156c1f93e0e8dd6254674.zip | |
Sat Feb 10 13:09:03 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* 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.
Diffstat (limited to 'sysdeps/unix/sysv/linux/m68k/brk.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/m68k/brk.c | 52 |
1 files changed, 52 insertions, 0 deletions
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 <errno.h> +#include <unistd.h> +#include <sysdep.h> + +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) + |