From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964814AbWACVLx (ORCPT ); Tue, 3 Jan 2006 16:11:53 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S964809AbWACVHt (ORCPT ); Tue, 3 Jan 2006 16:07:49 -0500 Received: from zeniv.linux.org.uk ([195.92.253.2]:33167 "EHLO ZenIV.linux.org.uk") by vger.kernel.org with ESMTP id S932563AbWACVHm (ORCPT ); Tue, 3 Jan 2006 16:07:42 -0500 To: torvalds@osdl.org Subject: [PATCH 14/50] sh: task_pt_regs() Cc: linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org Message-Id: From: Al Viro Date: Tue, 03 Jan 2006 21:07:38 +0000 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org References: <20060103210515.5135@ftp.linux.org.uk> In-Reply-To: <20060103210515.5135@ftp.linux.org.uk> Signed-off-by: Al Viro --- arch/sh/kernel/process.c | 42 ++++++------------------------------------ arch/sh/kernel/ptrace.c | 14 ++------------ include/asm-sh/ptrace.h | 10 ++++++++++ 3 files changed, 18 insertions(+), 48 deletions(-) dbd2b9937d425d621ab6eba3c3db67638090d0b9 diff --git a/arch/sh/kernel/process.c b/arch/sh/kernel/process.c index fd4f240..6a86fe3 100644 --- a/arch/sh/kernel/process.c +++ b/arch/sh/kernel/process.c @@ -191,13 +191,8 @@ void flush_thread(void) { #if defined(CONFIG_SH_FPU) struct task_struct *tsk = current; - struct pt_regs *regs = (struct pt_regs *) - ((unsigned long)tsk->thread_info - + THREAD_SIZE - sizeof(struct pt_regs) - - sizeof(unsigned long)); - /* Forget lazy FPU state */ - clear_fpu(tsk, regs); + clear_fpu(tsk, task_pt_regs(tsk)); clear_used_math(); #endif } @@ -232,13 +227,7 @@ int dump_task_regs(struct task_struct *t { struct pt_regs ptregs; - ptregs = *(struct pt_regs *) - ((unsigned long)tsk->thread_info + THREAD_SIZE - - sizeof(struct pt_regs) -#ifdef CONFIG_SH_DSP - - sizeof(struct pt_dspregs) -#endif - - sizeof(unsigned long)); + ptregs = *task_pt_regs(tsk); elf_core_copy_regs(regs, &ptregs); return 1; @@ -252,11 +241,7 @@ dump_task_fpu (struct task_struct *tsk, #if defined(CONFIG_SH_FPU) fpvalid = !!tsk_used_math(tsk); if (fpvalid) { - struct pt_regs *regs = (struct pt_regs *) - ((unsigned long)tsk->thread_info - + THREAD_SIZE - sizeof(struct pt_regs) - - sizeof(unsigned long)); - unlazy_fpu(tsk, regs); + unlazy_fpu(tsk, task_pt_regs(tsk)); memcpy(fpu, &tsk->thread.fpu.hard, sizeof(*fpu)); } #endif @@ -279,12 +264,7 @@ int copy_thread(int nr, unsigned long cl copy_to_stopped_child_used_math(p); #endif - childregs = ((struct pt_regs *) - (THREAD_SIZE + (unsigned long) p->thread_info) -#ifdef CONFIG_SH_DSP - - sizeof(struct pt_dspregs) -#endif - - sizeof(unsigned long)) - 1; + childregs = task_pt_regs(p); *childregs = *regs; if (user_mode(regs)) { @@ -353,11 +333,7 @@ ubc_set_tracing(int asid, unsigned long struct task_struct *__switch_to(struct task_struct *prev, struct task_struct *next) { #if defined(CONFIG_SH_FPU) - struct pt_regs *regs = (struct pt_regs *) - ((unsigned long)prev->thread_info - + THREAD_SIZE - sizeof(struct pt_regs) - - sizeof(unsigned long)); - unlazy_fpu(prev, regs); + unlazy_fpu(prev, task_pt_regs(prev)); #endif #ifdef CONFIG_PREEMPT @@ -366,13 +342,7 @@ struct task_struct *__switch_to(struct t struct pt_regs *regs; local_irq_save(flags); - regs = (struct pt_regs *) - ((unsigned long)prev->thread_info - + THREAD_SIZE - sizeof(struct pt_regs) -#ifdef CONFIG_SH_DSP - - sizeof(struct pt_dspregs) -#endif - - sizeof(unsigned long)); + regs = task_pt_regs(prev); if (user_mode(regs) && regs->regs[15] >= 0xc0000000) { int offset = (int)regs->regs[15]; diff --git a/arch/sh/kernel/ptrace.c b/arch/sh/kernel/ptrace.c index 1a8be06..3887b4f 100644 --- a/arch/sh/kernel/ptrace.c +++ b/arch/sh/kernel/ptrace.c @@ -41,12 +41,7 @@ static inline int get_stack_long(struct { unsigned char *stack; - stack = (unsigned char *) - task->thread_info + THREAD_SIZE - sizeof(struct pt_regs) -#ifdef CONFIG_SH_DSP - - sizeof(struct pt_dspregs) -#endif - - sizeof(unsigned long); + stack = (unsigned char *)task_pt_regs(task); stack += offset; return (*((int *)stack)); } @@ -59,12 +54,7 @@ static inline int put_stack_long(struct { unsigned char *stack; - stack = (unsigned char *) - task->thread_info + THREAD_SIZE - sizeof(struct pt_regs) -#ifdef CONFIG_SH_DSP - - sizeof(struct pt_dspregs) -#endif - - sizeof(unsigned long); + stack = (unsigned char *)task_pt_regs(task); stack += offset; *(unsigned long *) stack = data; return 0; diff --git a/include/asm-sh/ptrace.h b/include/asm-sh/ptrace.h index 0f75e16..85aa0f4 100644 --- a/include/asm-sh/ptrace.h +++ b/include/asm-sh/ptrace.h @@ -91,6 +91,16 @@ struct pt_dspregs { #define instruction_pointer(regs) ((regs)->pc) extern void show_regs(struct pt_regs *); +#ifdef CONFIG_SH_DSP +#define task_pt_regs(task) \ + ((struct pt_regs *) ((unsigned long)(task)->thread_info + THREAD_SIZE \ + - sizeof(struct pt_dspregs) - sizeof(unsigned long)) - 1) +#else +#define task_pt_regs(task) \ + ((struct pt_regs *) ((unsigned long)(task)->thread_info + THREAD_SIZE \ + - sizeof(unsigned long)) - 1) +#endif + static inline unsigned long profile_pc(struct pt_regs *regs) { unsigned long pc = instruction_pointer(regs); -- 0.99.9.GIT