2000-06-12 20:50:37 +00:00
|
|
|
/* brk system call for Linux/SH.
|
2013-01-02 19:01:50 +00:00
|
|
|
Copyright (C) 1999-2013 Free Software Foundation, Inc.
|
2000-06-12 20:50:37 +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 04:58:11 +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.
|
2000-06-12 20:50:37 +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 04:58:11 +00:00
|
|
|
Lesser General Public License for more details.
|
2000-06-12 20:50:37 +00:00
|
|
|
|
2001-07-06 04:58:11 +00:00
|
|
|
You should have received a copy of the GNU Lesser General Public
|
2012-02-09 23:18:22 +00:00
|
|
|
License along with the GNU C Library; if not, see
|
|
|
|
<http://www.gnu.org/licenses/>. */
|
2000-06-12 20:50:37 +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;
|
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
|
|
|
register long r3 asm ("%r3") = SYS_ify (brk);
|
|
|
|
register long r4 asm ("%r4") = (long)addr;
|
2000-06-12 20:50:37 +00:00
|
|
|
|
2003-02-08 02:34:27 +00:00
|
|
|
asm volatile ("trapa #0x11\n\t" SYSCALL_INST_PAD
|
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
|
|
|
: "=z"(newbrk)
|
|
|
|
: "r" (r3), "r" (r4));
|
2000-06-12 20:50:37 +00:00
|
|
|
|
|
|
|
__curbrk = newbrk;
|
|
|
|
|
|
|
|
if (newbrk < addr)
|
|
|
|
{
|
|
|
|
__set_errno (ENOMEM);
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
weak_alias (__brk, brk)
|