glibc/sysdeps/unix/sysv/linux/sh/brk.c
Ulrich Drepper 876f963440 Update.
2000-10-26  Kazumoto Kojima  <kkojima@rr.iij4u.or.jp>
	    Yutaka Niibe  <gniibe@chroot.org>

	* sysdeps/sh/dl-machine.h (elf_machine_rela): Handle in place
	relocation which is generated by new ld.
	* sysdeps/sh/elf/initfini.c (_init): Preseted __fpscr_values.
	(_fini): Delete an obsolete register prefix.
	* sysdeps/unix/sysv/linux/sh/Versions: Add __xstat64, __fxstat64,
	__lxstat64, alphasort64, glob64, readdir64, readdir64_r, scandir64
	and versionsort64 as the 2.2-versioned symbols.
	* sysdeps/unix/sysv/linux/sh/bits/fcntl.h: New file.
	* sysdeps/unix/sysv/linux/sh/brk.c: Changes for the new system call
	calling convention of the kernel.
	* sysdeps/unix/sysv/linux/sh/pipe.S: Likewise.
	* sysdeps/unix/sysv/linux/sh/socket.S: Likewise.
	* sysdeps/unix/sysv/linux/sh/clone.S: Likewise.
	* sysdeps/unix/sysv/linux/sh/vfork.S: Likewise.
	* sysdeps/unix/sysv/linux/sh/sysdep.h: Likewise.
	* sysdeps/unix/sysv/linux/sh/fcntl.c: New file.
	* sysdeps/unix/sysv/linux/sh/lockf64.c: New file.
	* sysdeps/unix/sysv/linux/sh/sys/user.h: Include the kernel header
	file and delete the definitions of struct user and user_fp.
	* sysdeps/unix/sysv/linux/sh/syscall.S: New file.
	* sysdeps/unix/sysv/linux/sh/syscalls.list: Remove entries for
	s_ioctl, s_ipc, s_llseek, s_chown, s_fchown, s_lchown, s_execve,
	rt_sigaction, rt_sigpending, rt_sigprocmask, rt_sigqueueinfo,
	rt_sigsuspend, rt_sigtimedwait, s_getcwd, s_getdents, s_getgroups,
	s_getpriority, s_getegid, s_geteuid, s_getuid, getresgid, getresuid,
	s_getrlimit, s_poll, s_pread64, s_ptrace, s_pwrite64, s_reboot,
	s_setrlimit, s_sigaction, s_sigpending, s_sigprocmask, s_sigsuspend,
	s_setfsgid, s_setfsuid, s_setgid, s_setgroups, s_setregid,
	s_setresgid, s_setresuid, s_setreuid, s_setuid, s_sysctl,
	s_ugetrlimit, s_ustat, sys_fstat, sys_lstat, sys_mknod, sys_readv,
	sys_stat, sys_writev and syscall.
2000-10-26 02:34:17 +00:00

49 lines
1.4 KiB
C

/* brk system call for Linux/SH.
Copyright (C) 1999, 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 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., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#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;
register long r3 asm ("%r3") = SYS_ify (brk);
register long r4 asm ("%r4") = (long)addr;
asm volatile ("trapa #0x11"
: "=z"(newbrk)
: "r" (r3), "r" (r4));
__curbrk = newbrk;
if (newbrk < addr)
{
__set_errno (ENOMEM);
return -1;
}
return 0;
}
weak_alias (__brk, brk)