X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;ds=sidebyside;f=arch%2Fv850%2Fkernel%2Fptrace.c;h=6e2adab92fc36f1dc90eb0dff9d9bbfb97bc276b;hb=34a75f0025b9cf803b6a88db032e6ad6950c9313;hp=bf43ea660432e39653f941b5606b35ab27e1c29f;hpb=c7b5ebbddf7bcd3651947760f423e3783bbe6573;p=linux-2.6.git

diff --git a/arch/v850/kernel/ptrace.c b/arch/v850/kernel/ptrace.c
index bf43ea660..6e2adab92 100644
--- a/arch/v850/kernel/ptrace.c
+++ b/arch/v850/kernel/ptrace.c
@@ -1,8 +1,8 @@
 /*
  * arch/v850/kernel/ptrace.c -- `ptrace' system call
  *
- *  Copyright (C) 2002,03  NEC Electronics Corporation
- *  Copyright (C) 2002,03  Miles Bader <miles@gnu.org>
+ *  Copyright (C) 2002,03,04  NEC Electronics Corporation
+ *  Copyright (C) 2002,03,04  Miles Bader <miles@gnu.org>
  *
  * Derived from arch/mips/kernel/ptrace.c:
  *
@@ -23,6 +23,7 @@
 #include <linux/sched.h>
 #include <linux/smp_lock.h>
 #include <linux/ptrace.h>
+#include <linux/signal.h>
 
 #include <asm/errno.h>
 #include <asm/ptrace.h>
@@ -57,7 +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);
 }
@@ -112,46 +113,12 @@ static int set_single_step (struct task_struct *t, int val)
 	return 1;
 }
 
-int sys_ptrace(long request, long pid, long addr, long data)
+long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 {
-	struct task_struct *child;
 	int rval;
 
-	lock_kernel();
-
-	if (request == PTRACE_TRACEME) {
-		/* are we already being traced? */
-		if (current->ptrace & PT_PTRACED) {
-			rval = -EPERM;
-			goto out;
-		}
-		/* set the ptrace bit in the process flags. */
-		current->ptrace |= PT_PTRACED;
-		rval = 0;
-		goto out;
-	}
-	rval = -ESRCH;
-	read_lock(&tasklist_lock);
-	child = find_task_by_pid(pid);
-	if (child)
-		get_task_struct(child);
-	read_unlock(&tasklist_lock);
-	if (!child)
-		goto out;
 	if (!vx_check(vx_task_xid(child), VX_WATCH|VX_IDENT))
-		goto out_tsk;
-
-	rval = -EPERM;
-	if (pid == 1)		/* you may not mess with init */
-		goto out_tsk;
-
-	if (request == PTRACE_ATTACH) {
-		rval = ptrace_attach(child);
-		goto out_tsk;
-	}
-	ret = ptrace_check_attach(child, request == PTRACE_KILL);
-	if (ret < 0)
-		goto out_tsk;
+		goto out;
 
 	switch (request) {
 		unsigned long val, copied;
@@ -210,7 +177,7 @@ int sys_ptrace(long request, long pid, long addr, long data)
 	/* Execute a single instruction. */
 	case PTRACE_SINGLESTEP:
 		rval = -EIO;
-		if ((unsigned long) data > _NSIG)
+		if (!valid_signal(data))
 			break;
 
 		/* Turn CHILD's single-step flag on or off.  */
@@ -234,7 +201,7 @@ int sys_ptrace(long request, long pid, long addr, long data)
 	 */
 	case PTRACE_KILL:
 		rval = 0;
-		if (child->state == TASK_ZOMBIE)	/* already dead */
+		if (child->exit_state == EXIT_ZOMBIE)	/* already dead */
 			break;
 		child->exit_code = SIGKILL;
 		wake_up_process(child);
@@ -249,11 +216,7 @@ int sys_ptrace(long request, long pid, long addr, long data)
 		rval = -EIO;
 		goto out;
 	}
-
-out_tsk:
-	put_task_struct(child);
-out:
-	unlock_kernel();
+ out:
 	return rval;
 }