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[PATCH] v850: task_stack_page(), task_pt_regs()

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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>
This commit is contained in:
Al Viro 2006-01-12 01:05:51 -08:00 committed by Linus Torvalds
parent 04fe6faf10
commit b7f6961d83
3 changed files with 6 additions and 6 deletions
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2
arch/v850/kernel/process.c
View file

@ -114,7 +114,7 @@ int copy_thread (int nr, unsigned long clone_flags,
struct task_struct *p, struct pt_regs *regs)
{
/* Start pushing stuff from the top of the child's kernel stack. */
unsigned long orig_ksp = (unsigned long)p->thread_info + THREAD_SIZE;
unsigned long orig_ksp = task_tos(p);
unsigned long ksp = orig_ksp;
/* We push two `state save' stack fames (see entry.S) on the new
kernel stack:

2
arch/v850/kernel/ptrace.c
View file

@ -58,7 +58,7 @@ static v850_reg_t *reg_save_addr (unsigned reg_offs, struct task_struct *t)
regs = thread_saved_regs (t);
else
/* Register saved during kernel entry (or not available). */
regs = task_regs (t);
regs = task_pt_regs (t);
return (v850_reg_t *)((char *)regs + reg_offs);
}

8
include/asm-v850/processor.h
View file

@ -98,10 +98,10 @@ unsigned long get_wchan (struct task_struct *p);
/* Return some info about the user process TASK. */
#define task_tos(task) ((unsigned long)(task)->thread_info + THREAD_SIZE)
#define task_regs(task) ((struct pt_regs *)task_tos (task) - 1)
#define task_sp(task) (task_regs (task)->gpr[GPR_SP])
#define task_pc(task) (task_regs (task)->pc)
#define task_tos(task) ((unsigned long)task_stack_page(task) + THREAD_SIZE)
#define task_pt_regs(task) ((struct pt_regs *)task_tos (task) - 1)
#define task_sp(task) (task_pt_regs (task)->gpr[GPR_SP])
#define task_pc(task) (task_pt_regs (task)->pc)
/* Grotty old names for some. */
#define KSTK_EIP(task) task_pc (task)
#define KSTK_ESP(task) task_sp (task)