diff options
| author | Jonathan Herman <hermanjl@cs.unc.edu> | 2013-01-22 10:38:37 -0500 |
|---|---|---|
| committer | Jonathan Herman <hermanjl@cs.unc.edu> | 2013-01-22 10:38:37 -0500 |
| commit | fcc9d2e5a6c89d22b8b773a64fb4ad21ac318446 (patch) | |
| tree | a57612d1888735a2ec7972891b68c1ac5ec8faea /arch/openrisc/kernel | |
| parent | 8dea78da5cee153b8af9c07a2745f6c55057fe12 (diff) | |
Diffstat (limited to 'arch/openrisc/kernel')
| -rw-r--r-- | arch/openrisc/kernel/init_task.c | 41 | ||||
| -rw-r--r-- | arch/openrisc/kernel/sys_or32.c | 57 |
2 files changed, 98 insertions, 0 deletions
diff --git a/arch/openrisc/kernel/init_task.c b/arch/openrisc/kernel/init_task.c new file mode 100644 index 00000000000..45744a38492 --- /dev/null +++ b/arch/openrisc/kernel/init_task.c | |||
| @@ -0,0 +1,41 @@ | |||
| 1 | /* | ||
| 2 | * OpenRISC init_task.c | ||
| 3 | * | ||
| 4 | * Linux architectural port borrowing liberally from similar works of | ||
| 5 | * others. All original copyrights apply as per the original source | ||
| 6 | * declaration. | ||
| 7 | * | ||
| 8 | * Modifications for the OpenRISC architecture: | ||
| 9 | * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com> | ||
| 10 | * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se> | ||
| 11 | * | ||
| 12 | * This program is free software; you can redistribute it and/or | ||
| 13 | * modify it under the terms of the GNU General Public License | ||
| 14 | * as published by the Free Software Foundation; either version | ||
| 15 | * 2 of the License, or (at your option) any later version. | ||
| 16 | */ | ||
| 17 | |||
| 18 | #include <linux/init_task.h> | ||
| 19 | #include <linux/mqueue.h> | ||
| 20 | |||
| 21 | static struct signal_struct init_signals = INIT_SIGNALS(init_signals); | ||
| 22 | static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand); | ||
| 23 | |||
| 24 | /* | ||
| 25 | * Initial thread structure. | ||
| 26 | * | ||
| 27 | * We need to make sure that this is THREAD_SIZE aligned due to the | ||
| 28 | * way process stacks are handled. This is done by having a special | ||
| 29 | * "init_task" linker map entry.. | ||
| 30 | */ | ||
| 31 | union thread_union init_thread_union __init_task_data = { | ||
| 32 | INIT_THREAD_INFO(init_task) | ||
| 33 | }; | ||
| 34 | |||
| 35 | /* | ||
| 36 | * Initial task structure. | ||
| 37 | * | ||
| 38 | * All other task structs will be allocated on slabs in fork.c | ||
| 39 | */ | ||
| 40 | struct task_struct init_task = INIT_TASK(init_task); | ||
| 41 | EXPORT_SYMBOL(init_task); | ||
diff --git a/arch/openrisc/kernel/sys_or32.c b/arch/openrisc/kernel/sys_or32.c new file mode 100644 index 00000000000..57060084c0c --- /dev/null +++ b/arch/openrisc/kernel/sys_or32.c | |||
| @@ -0,0 +1,57 @@ | |||
| 1 | /* | ||
| 2 | * OpenRISC sys_or32.c | ||
| 3 | * | ||
| 4 | * Linux architectural port borrowing liberally from similar works of | ||
| 5 | * others. All original copyrights apply as per the original source | ||
| 6 | * declaration. | ||
| 7 | * | ||
| 8 | * Modifications for the OpenRISC architecture: | ||
| 9 | * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com> | ||
| 10 | * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se> | ||
| 11 | * | ||
| 12 | * This program is free software; you can redistribute it and/or | ||
| 13 | * modify it under the terms of the GNU General Public License | ||
| 14 | * as published by the Free Software Foundation; either version | ||
| 15 | * 2 of the License, or (at your option) any later version. | ||
| 16 | * | ||
| 17 | * This file contains various random system calls that | ||
| 18 | * have a non-standard calling sequence on some platforms. | ||
| 19 | * Since we don't have to do any backwards compatibility, our | ||
| 20 | * versions are done in the most "normal" way possible. | ||
| 21 | */ | ||
| 22 | |||
| 23 | #include <linux/errno.h> | ||
| 24 | #include <linux/syscalls.h> | ||
| 25 | #include <linux/mm.h> | ||
| 26 | |||
| 27 | #include <asm/syscalls.h> | ||
| 28 | |||
| 29 | /* These are secondary entry points as the primary entry points are defined in | ||
| 30 | * entry.S where we add the 'regs' parameter value | ||
| 31 | */ | ||
| 32 | |||
| 33 | asmlinkage long _sys_clone(unsigned long clone_flags, unsigned long newsp, | ||
| 34 | int __user *parent_tid, int __user *child_tid, | ||
| 35 | struct pt_regs *regs) | ||
| 36 | { | ||
| 37 | long ret; | ||
| 38 | |||
| 39 | /* FIXME: Is alignment necessary? */ | ||
| 40 | /* newsp = ALIGN(newsp, 4); */ | ||
| 41 | |||
| 42 | if (!newsp) | ||
| 43 | newsp = regs->sp; | ||
| 44 | |||
| 45 | ret = do_fork(clone_flags, newsp, regs, 0, parent_tid, child_tid); | ||
| 46 | |||
| 47 | return ret; | ||
| 48 | } | ||
| 49 | |||
| 50 | asmlinkage int _sys_fork(struct pt_regs *regs) | ||
| 51 | { | ||
| 52 | #ifdef CONFIG_MMU | ||
| 53 | return do_fork(SIGCHLD, regs->sp, regs, 0, NULL, NULL); | ||
| 54 | #else | ||
| 55 | return -EINVAL; | ||
| 56 | #endif | ||
| 57 | } | ||
