1998-07-27 17:54:08 +00:00
|
|
|
/* brk system call for Linux/ARM.
|
2018-01-01 00:32:25 +00:00
|
|
|
Copyright (C) 1995-2018 Free Software Foundation, Inc.
|
1998-07-27 17:54:08 +00:00
|
|
|
This file is part of the GNU C Library.
|
|
|
|
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
2001-07-06 04:56:23 +00:00
|
|
|
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.
|
1998-07-27 17:54:08 +00:00
|
|
|
|
|
|
|
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
|
2001-07-06 04:56:23 +00:00
|
|
|
Lesser General Public License for more details.
|
1998-07-27 17:54:08 +00:00
|
|
|
|
2001-07-06 04:56:23 +00:00
|
|
|
You should have received a copy of the GNU Lesser General Public
|
2012-03-09 23:56:38 +00:00
|
|
|
License along with the GNU C Library. If not, see
|
|
|
|
<http://www.gnu.org/licenses/>. */
|
1998-07-27 17:54:08 +00:00
|
|
|
|
|
|
|
#include <errno.h>
|
|
|
|
#include <unistd.h>
|
|
|
|
#include <sysdep.h>
|
|
|
|
|
|
|
|
/* This must be initialized data because commons can't have aliases. */
|
|
|
|
void *__curbrk = 0;
|
|
|
|
|
|
|
|
int
|
|
|
|
__brk (void *addr)
|
|
|
|
{
|
|
|
|
void *newbrk;
|
|
|
|
|
* sysdeps/arm/dl-machine.h (CLEAR_CACHE): Use INTERNAL_SYSCALL_ARM.
* sysdeps/unix/sysv/linux/arm/brk.c (__brk): Use INLINE_SYSCALL.
* sysdeps/unix/sysv/linux/arm/clone.S (__clone): Use DO_CALL.
* sysdeps/unix/sysv/linux/arm/eabi/configure.in: Bump
arch_minimum_kernel.
* sysdeps/unix/sysv/linux/arm/eabi/configure: Regenerated.
* sysdeps/unix/sysv/linux/arm/eabi/epoll_ctl.c,
sysdeps/unix/sysv/linux/arm/eabi/epoll_wait.c,
sysdeps/unix/sysv/linux/arm/eabi/fcntl.c,
sysdeps/unix/sysv/linux/arm/eabi/fstatfs64.c,
sysdeps/unix/sysv/linux/arm/eabi/ftruncate64.c,
sysdeps/unix/sysv/linux/arm/eabi/fxstat64.c,
sysdeps/unix/sysv/linux/arm/eabi/kernel_epoll.h,
sysdeps/unix/sysv/linux/arm/eabi/kernel_stat.h,
sysdeps/unix/sysv/linux/arm/eabi/lockf64.c,
sysdeps/unix/sysv/linux/arm/eabi/lxstat64.c,
sysdeps/unix/sysv/linux/arm/eabi/semop.c,
sysdeps/unix/sysv/linux/arm/eabi/semtimedop.c,
sysdeps/unix/sysv/linux/arm/eabi/statfs64.c,
sysdeps/unix/sysv/linux/arm/eabi/syscalls.list,
sysdeps/unix/sysv/linux/arm/eabi/uname.c,
sysdeps/unix/sysv/linux/arm/eabi/xstat64.c,
sysdeps/unix/sysv/linux/arm/eabi/xstatconv.c,
sysdeps/unix/sysv/linux/arm/eabi/xstatconv.h: Removed.
* sysdeps/unix/sysv/linux/arm/eabi/linuxthreads/sysdep-cancel.h,
sysdeps/unix/sysv/linux/arm/eabi/mmap64.S,
sysdeps/unix/sysv/linux/arm/eabi/pread.c,
sysdeps/unix/sysv/linux/arm/eabi/pread64.c,
sysdeps/unix/sysv/linux/arm/eabi/pwrite.c,
sysdeps/unix/sysv/linux/arm/eabi/pwrite64.c,
sysdeps/unix/sysv/linux/arm/eabi/readahead.c,
sysdeps/unix/sysv/linux/arm/eabi/sigrestorer.S,
sysdeps/unix/sysv/linux/arm/eabi/socket.S,
sysdeps/unix/sysv/linux/arm/eabi/syscall.S,
sysdeps/unix/sysv/linux/arm/eabi/sysdep.h,
sysdeps/unix/sysv/linux/arm/eabi/truncate64.c: New files.
* sysdeps/unix/sysv/linux/arm/linuxthreads/sysdep-cancel.h
(SINGLE_THREAD_P_INT, SINGLE_THREAD_P_PIC): Removed.
(SINGLE_THREAD_P): Rewritten to use only ip.
* sysdeps/unix/sysv/linux/arm/linuxthreads/vfork.S (__vfork): Use
DO_CALL.
* sysdeps/unix/sysv/linux/arm/mmap.S (__mmap): Use DO_CALL.
* sysdeps/unix/sysv/linux/arm/mmap64.S (__mmap64): Use DO_CALL.
Don't handle EABI here.
* sysdeps/unix/sysv/linux/arm/socket.S (__socket): Use
SINGLE_THREAD_P.
* sysdeps/unix/sysv/linux/arm/vfork.S (__vfork): Use DO_CALL.
2005-11-16 18:08:53 +00:00
|
|
|
__curbrk = newbrk = (void *) INLINE_SYSCALL (brk, 1, addr);
|
1998-07-27 17:54:08 +00:00
|
|
|
|
|
|
|
if (newbrk < addr)
|
|
|
|
{
|
|
|
|
__set_errno (ENOMEM);
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
weak_alias (__brk, brk)
|