diff options
Diffstat (limited to 'arch/unicore32/kernel')
-rw-r--r-- | arch/unicore32/kernel/Makefile | 2 | ||||
-rw-r--r-- | arch/unicore32/kernel/init_task.c | 44 | ||||
-rw-r--r-- | arch/unicore32/kernel/signal.c | 61 |
3 files changed, 12 insertions, 95 deletions
diff --git a/arch/unicore32/kernel/Makefile b/arch/unicore32/kernel/Makefile index aeb0f181568e..324010156958 100644 --- a/arch/unicore32/kernel/Makefile +++ b/arch/unicore32/kernel/Makefile @@ -29,4 +29,4 @@ obj-$(CONFIG_PUV3_NB0916) += puv3-nb0916.o head-y := head.o obj-$(CONFIG_DEBUG_LL) += debug.o -extra-y := $(head-y) init_task.o vmlinux.lds +extra-y := $(head-y) vmlinux.lds diff --git a/arch/unicore32/kernel/init_task.c b/arch/unicore32/kernel/init_task.c deleted file mode 100644 index a35a1e50e4f4..000000000000 --- a/arch/unicore32/kernel/init_task.c +++ /dev/null @@ -1,44 +0,0 @@ -/* - * linux/arch/unicore32/kernel/init_task.c - * - * Code specific to PKUnity SoC and UniCore ISA - * - * Copyright (C) 2001-2010 GUAN Xue-tao - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#include <linux/mm.h> -#include <linux/module.h> -#include <linux/fs.h> -#include <linux/sched.h> -#include <linux/init.h> -#include <linux/init_task.h> -#include <linux/mqueue.h> -#include <linux/uaccess.h> - -#include <asm/pgtable.h> - -static struct signal_struct init_signals = INIT_SIGNALS(init_signals); -static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand); -/* - * Initial thread structure. - * - * We need to make sure that this is 8192-byte aligned due to the - * way process stacks are handled. This is done by making sure - * the linker maps this in the .text segment right after head.S, - * and making head.S ensure the proper alignment. - * - * The things we do for performance.. - */ -union thread_union init_thread_union __init_task_data = { - INIT_THREAD_INFO(init_task) }; - -/* - * Initial task structure. - * - * All other task structs will be allocated on slabs in fork.c - */ -struct task_struct init_task = INIT_TASK(init_task); -EXPORT_SYMBOL(init_task); diff --git a/arch/unicore32/kernel/signal.c b/arch/unicore32/kernel/signal.c index 911b549a6df5..8adedb37720a 100644 --- a/arch/unicore32/kernel/signal.c +++ b/arch/unicore32/kernel/signal.c @@ -21,8 +21,6 @@ #include <asm/cacheflush.h> #include <asm/ucontext.h> -#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP))) - /* * For UniCore syscalls, we encode the syscall number into the instruction. */ @@ -61,10 +59,8 @@ static int restore_sigframe(struct pt_regs *regs, struct sigframe __user *sf) int err; err = __copy_from_user(&set, &sf->uc.uc_sigmask, sizeof(set)); - if (err == 0) { - sigdelsetmask(&set, ~_BLOCKABLE); + if (err == 0) set_current_blocked(&set); - } err |= __get_user(regs->UCreg_00, &sf->uc.uc_mcontext.regs.UCreg_00); err |= __get_user(regs->UCreg_01, &sf->uc.uc_mcontext.regs.UCreg_01); @@ -312,13 +308,12 @@ static inline void setup_syscall_restart(struct pt_regs *regs) /* * OK, we're invoking a handler */ -static int handle_signal(unsigned long sig, struct k_sigaction *ka, - siginfo_t *info, sigset_t *oldset, - struct pt_regs *regs, int syscall) +static void handle_signal(unsigned long sig, struct k_sigaction *ka, + siginfo_t *info, struct pt_regs *regs, int syscall) { struct thread_info *thread = current_thread_info(); struct task_struct *tsk = current; - sigset_t blocked; + sigset_t *oldset = sigmask_to_save(); int usig = sig; int ret; @@ -364,18 +359,10 @@ static int handle_signal(unsigned long sig, struct k_sigaction *ka, if (ret != 0) { force_sigsegv(sig, tsk); - return ret; + return; } - /* - * Block the signal if we were successful. - */ - sigorsets(&blocked, &tsk->blocked, &ka->sa.sa_mask); - if (!(ka->sa.sa_flags & SA_NODEFER)) - sigaddset(&blocked, sig); - set_current_blocked(&blocked); - - return 0; + signal_delivered(sig, info, ka, regs, 0); } /* @@ -402,32 +389,12 @@ static void do_signal(struct pt_regs *regs, int syscall) if (!user_mode(regs)) return; - if (try_to_freeze()) - goto no_signal; - signr = get_signal_to_deliver(&info, &ka, regs, NULL); if (signr > 0) { - sigset_t *oldset; - - if (test_thread_flag(TIF_RESTORE_SIGMASK)) - oldset = ¤t->saved_sigmask; - else - oldset = ¤t->blocked; - if (handle_signal(signr, &ka, &info, oldset, regs, syscall) - == 0) { - /* - * A signal was successfully delivered; the saved - * sigmask will have been stored in the signal frame, - * and will be restored by sigreturn, so we can simply - * clear the TIF_RESTORE_SIGMASK flag. - */ - if (test_thread_flag(TIF_RESTORE_SIGMASK)) - clear_thread_flag(TIF_RESTORE_SIGMASK); - } + handle_signal(signr, &ka, &info, regs, syscall); return; } - no_signal: /* * No signal to deliver to the process - restart the syscall. */ @@ -450,15 +417,11 @@ static void do_signal(struct pt_regs *regs, int syscall) regs->UCreg_00 == -ERESTARTNOINTR) { setup_syscall_restart(regs); } - - /* If there's no signal to deliver, we just put the saved - * sigmask back. - */ - if (test_thread_flag(TIF_RESTORE_SIGMASK)) { - clear_thread_flag(TIF_RESTORE_SIGMASK); - sigprocmask(SIG_SETMASK, ¤t->saved_sigmask, NULL); - } } + /* If there's no signal to deliver, we just put the saved + * sigmask back. + */ + restore_saved_sigmask(); } asmlinkage void do_notify_resume(struct pt_regs *regs, @@ -470,8 +433,6 @@ asmlinkage void do_notify_resume(struct pt_regs *regs, if (thread_flags & _TIF_NOTIFY_RESUME) { clear_thread_flag(TIF_NOTIFY_RESUME); tracehook_notify_resume(regs); - if (current->replacement_session_keyring) - key_replace_session_keyring(); } } |