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authorAl Viro <viro@ftp.linux.org.uk>2006-01-12 01:05:50 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-01-12 09:08:54 -0800
commit04fe6faf10c310480151667e7fe3e06df4208a8e (patch)
tree14dc22d1bd96e438a71d9434b07d9e49d072ea9a
parent30af7120fe6cfa8cf9ccd0626474fa1cd6d2bd59 (diff)
[PATCH] xtensa: task_pt_regs(), task_stack_page()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
-rw-r--r--arch/xtensa/kernel/process.c4
-rw-r--r--arch/xtensa/kernel/ptrace.c12
-rw-r--r--include/asm-xtensa/processor.h6
-rw-r--r--include/asm-xtensa/ptrace.h4
4 files changed, 13 insertions, 13 deletions
diff --git a/arch/xtensa/kernel/process.c b/arch/xtensa/kernel/process.c
index 6a44b54ae81..f1f596644bf 100644
--- a/arch/xtensa/kernel/process.c
+++ b/arch/xtensa/kernel/process.c
@@ -145,7 +145,7 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
int user_mode = user_mode(regs);
/* Set up new TSS. */
- tos = (unsigned long)p->thread_info + THREAD_SIZE;
+ tos = (unsigned long)task_stack_page(p) + THREAD_SIZE;
if (user_mode)
childregs = (struct pt_regs*)(tos - PT_USER_SIZE);
else
@@ -217,7 +217,7 @@ int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags)
unsigned long get_wchan(struct task_struct *p)
{
unsigned long sp, pc;
- unsigned long stack_page = (unsigned long) p->thread_info;
+ unsigned long stack_page = (unsigned long) task_stack_page(p);
int count = 0;
if (!p || p == current || p->state == TASK_RUNNING)
diff --git a/arch/xtensa/kernel/ptrace.c b/arch/xtensa/kernel/ptrace.c
index ab5c4c65b5c..4cc85285a70 100644
--- a/arch/xtensa/kernel/ptrace.c
+++ b/arch/xtensa/kernel/ptrace.c
@@ -72,7 +72,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
struct pt_regs *regs;
unsigned long tmp;
- regs = xtensa_pt_regs(child);
+ regs = task_pt_regs(child);
tmp = 0; /* Default return value. */
switch(addr) {
@@ -149,7 +149,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
case PTRACE_POKEUSR:
{
struct pt_regs *regs;
- regs = xtensa_pt_regs(child);
+ regs = task_pt_regs(child);
switch (addr) {
case REG_AR_BASE ... REG_AR_BASE + XCHAL_NUM_AREGS - 1:
@@ -240,7 +240,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
* elf_gregset_t format. */
xtensa_gregset_t format;
- struct pt_regs *regs = xtensa_pt_regs(child);
+ struct pt_regs *regs = task_pt_regs(child);
do_copy_regs (&format, regs, child);
@@ -257,7 +257,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
* values in the elf_gregset_t format. */
xtensa_gregset_t format;
- struct pt_regs *regs = xtensa_pt_regs(child);
+ struct pt_regs *regs = task_pt_regs(child);
if (copy_from_user(&format,(void *)data,sizeof(elf_gregset_t))){
ret = -EFAULT;
@@ -281,7 +281,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
* elf_fpregset_t format. */
elf_fpregset_t fpregs;
- struct pt_regs *regs = xtensa_pt_regs(child);
+ struct pt_regs *regs = task_pt_regs(child);
do_save_fpregs (&fpregs, regs, child);
@@ -299,7 +299,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
* values in the elf_fpregset_t format.
*/
elf_fpregset_t fpregs;
- struct pt_regs *regs = xtensa_pt_regs(child);
+ struct pt_regs *regs = task_pt_regs(child);
ret = 0;
if (copy_from_user(&fpregs, (void *)data, sizeof(elf_fpregset_t))) {
diff --git a/include/asm-xtensa/processor.h b/include/asm-xtensa/processor.h
index 9cab5e4298b..d1d72ad36f0 100644
--- a/include/asm-xtensa/processor.h
+++ b/include/asm-xtensa/processor.h
@@ -184,12 +184,12 @@ extern int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags);
#define release_segments(mm) do { } while(0)
#define forget_segments() do { } while (0)
-#define thread_saved_pc(tsk) (xtensa_pt_regs(tsk)->pc)
+#define thread_saved_pc(tsk) (task_pt_regs(tsk)->pc)
extern unsigned long get_wchan(struct task_struct *p);
-#define KSTK_EIP(tsk) (xtensa_pt_regs(tsk)->pc)
-#define KSTK_ESP(tsk) (xtensa_pt_regs(tsk)->areg[1])
+#define KSTK_EIP(tsk) (task_pt_regs(tsk)->pc)
+#define KSTK_ESP(tsk) (task_pt_regs(tsk)->areg[1])
#define cpu_relax() do { } while (0)
diff --git a/include/asm-xtensa/ptrace.h b/include/asm-xtensa/ptrace.h
index aa4fd7fb3ce..a5ac71a5205 100644
--- a/include/asm-xtensa/ptrace.h
+++ b/include/asm-xtensa/ptrace.h
@@ -113,8 +113,8 @@ struct pt_regs {
};
#ifdef __KERNEL__
-# define xtensa_pt_regs(tsk) ((struct pt_regs*) \
- (((long)(tsk)->thread_info + KERNEL_STACK_SIZE - (XCHAL_NUM_AREGS-16)*4)) - 1)
+# define task_pt_regs(tsk) ((struct pt_regs*) \
+ (task_stack_page(tsk) + KERNEL_STACK_SIZE - (XCHAL_NUM_AREGS-16)*4) - 1)
# define user_mode(regs) (((regs)->ps & 0x00000020)!=0)
# define instruction_pointer(regs) ((regs)->pc)
extern void show_regs(struct pt_regs *);