diff options
| -rw-r--r-- | arch/openrisc/include/asm/syscalls.h | 7 | ||||
| -rw-r--r-- | arch/openrisc/include/uapi/asm/unistd.h | 2 | ||||
| -rw-r--r-- | arch/openrisc/kernel/Makefile | 2 | ||||
| -rw-r--r-- | arch/openrisc/kernel/entry.S | 12 | ||||
| -rw-r--r-- | arch/openrisc/kernel/process.c | 5 | ||||
| -rw-r--r-- | arch/openrisc/kernel/sys_or32.c | 57 |
6 files changed, 19 insertions, 66 deletions
diff --git a/arch/openrisc/include/asm/syscalls.h b/arch/openrisc/include/asm/syscalls.h index 84a978a..8ee8168 100644 --- a/arch/openrisc/include/asm/syscalls.h +++ b/arch/openrisc/include/asm/syscalls.h @@ -24,4 +24,11 @@ asmlinkage long sys_or1k_atomic(unsigned long type, unsigned long *v1, #include <asm-generic/syscalls.h> +asmlinkage long __sys_clone(unsigned long clone_flags, unsigned long newsp, + void __user *parent_tid, void __user *child_tid, int tls); +asmlinkage long __sys_fork(void); + +#define sys_clone __sys_clone +#define sys_fork __sys_fork + #endif /* __ASM_OPENRISC_SYSCALLS_H */ diff --git a/arch/openrisc/include/uapi/asm/unistd.h b/arch/openrisc/include/uapi/asm/unistd.h index 5db7bc0..5082b80 100644 --- a/arch/openrisc/include/uapi/asm/unistd.h +++ b/arch/openrisc/include/uapi/asm/unistd.h @@ -21,6 +21,8 @@ #define sys_mmap2 sys_mmap_pgoff #define __ARCH_WANT_SYS_EXECVE +#define __ARCH_WANT_SYS_FORK +#define __ARCH_WANT_SYS_CLONE #include <asm-generic/unistd.h> diff --git a/arch/openrisc/kernel/Makefile b/arch/openrisc/kernel/Makefile index e1ee0fa..35f92ce 100644 --- a/arch/openrisc/kernel/Makefile +++ b/arch/openrisc/kernel/Makefile @@ -5,7 +5,7 @@ extra-y := head.o vmlinux.lds obj-y := setup.o idle.o or32_ksyms.o process.o dma.o \ - traps.o time.o irq.o entry.o ptrace.o signal.o sys_or32.o \ + traps.o time.o irq.o entry.o ptrace.o signal.o \ sys_call_table.o obj-$(CONFIG_MODULES) += module.o diff --git a/arch/openrisc/kernel/entry.S b/arch/openrisc/kernel/entry.S index c60a09d..5e5b306 100644 --- a/arch/openrisc/kernel/entry.S +++ b/arch/openrisc/kernel/entry.S @@ -1071,15 +1071,15 @@ _fork_save_extra_regs_and_call: l.jr r29 l.sw PT_GPR28(r1),r28 -ENTRY(sys_clone) - l.movhi r29,hi(_sys_clone) - l.ori r29,r29,lo(_sys_clone) +ENTRY(__sys_clone) + l.movhi r29,hi(sys_clone) + l.ori r29,r29,lo(sys_clone) l.j _fork_save_extra_regs_and_call l.addi r7,r1,0 -ENTRY(sys_fork) - l.movhi r29,hi(_sys_fork) - l.ori r29,r29,lo(_sys_fork) +ENTRY(__sys_fork) + l.movhi r29,hi(sys_fork) + l.ori r29,r29,lo(sys_fork) l.j _fork_save_extra_regs_and_call l.addi r3,r1,0 diff --git a/arch/openrisc/kernel/process.c b/arch/openrisc/kernel/process.c index e0874b8..6b85366 100644 --- a/arch/openrisc/kernel/process.c +++ b/arch/openrisc/kernel/process.c @@ -168,9 +168,10 @@ copy_thread(unsigned long clone_flags, unsigned long usp, kregs->gpr[20] = usp; /* fn, kernel thread */ kregs->gpr[22] = arg; } else { - *userregs = *regs; + *userregs = *current_pt_regs(); - userregs->sp = usp; + if (usp) + userregs->sp = usp; userregs->gpr[11] = 0; /* Result from fork() */ kregs->gpr[20] = 0; /* Userspace thread */ diff --git a/arch/openrisc/kernel/sys_or32.c b/arch/openrisc/kernel/sys_or32.c deleted file mode 100644 index 5706008..0000000 --- a/arch/openrisc/kernel/sys_or32.c +++ /dev/null @@ -1,57 +0,0 @@ -/* - * OpenRISC sys_or32.c - * - * Linux architectural port borrowing liberally from similar works of - * others. All original copyrights apply as per the original source - * declaration. - * - * Modifications for the OpenRISC architecture: - * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com> - * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - * - * This file contains various random system calls that - * have a non-standard calling sequence on some platforms. - * Since we don't have to do any backwards compatibility, our - * versions are done in the most "normal" way possible. - */ - -#include <linux/errno.h> -#include <linux/syscalls.h> -#include <linux/mm.h> - -#include <asm/syscalls.h> - -/* These are secondary entry points as the primary entry points are defined in - * entry.S where we add the 'regs' parameter value - */ - -asmlinkage long _sys_clone(unsigned long clone_flags, unsigned long newsp, - int __user *parent_tid, int __user *child_tid, - struct pt_regs *regs) -{ - long ret; - - /* FIXME: Is alignment necessary? */ - /* newsp = ALIGN(newsp, 4); */ - - if (!newsp) - newsp = regs->sp; - - ret = do_fork(clone_flags, newsp, regs, 0, parent_tid, child_tid); - - return ret; -} - -asmlinkage int _sys_fork(struct pt_regs *regs) -{ -#ifdef CONFIG_MMU - return do_fork(SIGCHLD, regs->sp, regs, 0, NULL, NULL); -#else - return -EINVAL; -#endif -} |