From 5ee4897691fc950b489bb2e95ab11daca6dd62aa Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 12 Jan 2006 01:06:07 -0800 Subject: [PATCH] --- yaml --- r: 18098 b: refs/heads/master c: 40bc9c671a9f0a5189c07a2b4280aec9b40e30cd h: refs/heads/master v: v3 --- [refs] | 2 +- trunk/arch/mips/kernel/process.c | 4 +--- trunk/arch/mips/kernel/ptrace.c | 12 ++++-------- trunk/arch/mips/kernel/ptrace32.c | 6 ++---- trunk/include/asm-mips/processor.h | 8 ++++---- trunk/include/asm-mips/system.h | 2 +- 6 files changed, 13 insertions(+), 21 deletions(-) diff --git a/[refs] b/[refs] index 4e09f248bae9..50924406c077 100644 --- a/[refs] +++ b/[refs] @@ -1,2 +1,2 @@ --- -refs/heads/master: 6450578f32cdca587ae5f148e2118b2fcc36bb11 +refs/heads/master: 40bc9c671a9f0a5189c07a2b4280aec9b40e30cd diff --git a/trunk/arch/mips/kernel/process.c b/trunk/arch/mips/kernel/process.c index 0476a4dce14e..aca56f4a5d50 100644 --- a/trunk/arch/mips/kernel/process.c +++ b/trunk/arch/mips/kernel/process.c @@ -229,9 +229,7 @@ void elf_dump_regs(elf_greg_t *gp, struct pt_regs *regs) int dump_task_regs (struct task_struct *tsk, elf_gregset_t *regs) { - struct thread_info *ti = tsk->thread_info; - long ksp = (unsigned long)ti + THREAD_SIZE - 32; - elf_dump_regs(&(*regs)[0], (struct pt_regs *) ksp - 1); + elf_dump_regs(*regs, task_pt_regs(tsk)); return 1; } diff --git a/trunk/arch/mips/kernel/ptrace.c b/trunk/arch/mips/kernel/ptrace.c index 8d2549335304..6c358b333166 100644 --- a/trunk/arch/mips/kernel/ptrace.c +++ b/trunk/arch/mips/kernel/ptrace.c @@ -64,8 +64,7 @@ int ptrace_getregs (struct task_struct *child, __s64 __user *data) if (!access_ok(VERIFY_WRITE, data, 38 * 8)) return -EIO; - regs = (struct pt_regs *) ((unsigned long) child->thread_info + - THREAD_SIZE - 32 - sizeof(struct pt_regs)); + regs = task_pt_regs(child); for (i = 0; i < 32; i++) __put_user (regs->regs[i], data + i); @@ -92,8 +91,7 @@ int ptrace_setregs (struct task_struct *child, __s64 __user *data) if (!access_ok(VERIFY_READ, data, 38 * 8)) return -EIO; - regs = (struct pt_regs *) ((unsigned long) child->thread_info + - THREAD_SIZE - 32 - sizeof(struct pt_regs)); + regs = task_pt_regs(child); for (i = 0; i < 32; i++) __get_user (regs->regs[i], data + i); @@ -198,8 +196,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) struct pt_regs *regs; unsigned long tmp = 0; - regs = (struct pt_regs *) ((unsigned long) child->thread_info + - THREAD_SIZE - 32 - sizeof(struct pt_regs)); + regs = task_pt_regs(child); ret = 0; /* Default return value. */ switch (addr) { @@ -314,8 +311,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) case PTRACE_POKEUSR: { struct pt_regs *regs; ret = 0; - regs = (struct pt_regs *) ((unsigned long) child->thread_info + - THREAD_SIZE - 32 - sizeof(struct pt_regs)); + regs = task_pt_regs(child); switch (addr) { case 0 ... 31: diff --git a/trunk/arch/mips/kernel/ptrace32.c b/trunk/arch/mips/kernel/ptrace32.c index 1f998bfde165..456ec438728c 100644 --- a/trunk/arch/mips/kernel/ptrace32.c +++ b/trunk/arch/mips/kernel/ptrace32.c @@ -126,8 +126,7 @@ asmlinkage int sys32_ptrace(int request, int pid, int addr, int data) struct pt_regs *regs; unsigned int tmp; - regs = (struct pt_regs *) ((unsigned long) child->thread_info + - THREAD_SIZE - 32 - sizeof(struct pt_regs)); + regs = task_pt_regs(child); ret = 0; /* Default return value. */ switch (addr) { @@ -259,8 +258,7 @@ asmlinkage int sys32_ptrace(int request, int pid, int addr, int data) case PTRACE_POKEUSR: { struct pt_regs *regs; ret = 0; - regs = (struct pt_regs *) ((unsigned long) child->thread_info + - THREAD_SIZE - 32 - sizeof(struct pt_regs)); + regs = task_pt_regs(child); switch (addr) { case 0 ... 31: diff --git a/trunk/include/asm-mips/processor.h b/trunk/include/asm-mips/processor.h index de53055a62ae..ab3123ea5658 100644 --- a/trunk/include/asm-mips/processor.h +++ b/trunk/include/asm-mips/processor.h @@ -200,11 +200,11 @@ extern void start_thread(struct pt_regs * regs, unsigned long pc, unsigned long unsigned long get_wchan(struct task_struct *p); -#define __PT_REG(reg) ((long)&((struct pt_regs *)0)->reg - sizeof(struct pt_regs)) #define __KSTK_TOS(tsk) ((unsigned long)(tsk->thread_info) + THREAD_SIZE - 32) -#define KSTK_EIP(tsk) (*(unsigned long *)(__KSTK_TOS(tsk) + __PT_REG(cp0_epc))) -#define KSTK_ESP(tsk) (*(unsigned long *)(__KSTK_TOS(tsk) + __PT_REG(regs[29]))) -#define KSTK_STATUS(tsk) (*(unsigned long *)(__KSTK_TOS(tsk) + __PT_REG(cp0_status))) +#define task_pt_regs(tsk) ((struct pt_regs *)__KSTK_TOS(tsk) - 1) +#define KSTK_EIP(tsk) (task_pt_regs(tsk)->cp0_epc) +#define KSTK_ESP(tsk) (task_pt_regs(tsk)->regs[29]) +#define KSTK_STATUS(tsk) (task_pt_regs(tsk)->cp0_status) #define cpu_relax() barrier() diff --git a/trunk/include/asm-mips/system.h b/trunk/include/asm-mips/system.h index 5f761ad5a8d9..e8e5d4143377 100644 --- a/trunk/include/asm-mips/system.h +++ b/trunk/include/asm-mips/system.h @@ -159,7 +159,7 @@ struct task_struct; do { \ if (cpu_has_dsp) \ __save_dsp(prev); \ - (last) = resume(prev, next, next->thread_info); \ + (last) = resume(prev, next, task_thread_info(next)); \ if (cpu_has_dsp) \ __restore_dsp(current); \ } while(0)