X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=arch%2Farm%2Fkernel%2Fptrace.c;h=9254ba2f46fc147b756407d6d21fdff16a117f84;hb=e82ca04387dd6c98722f5f48235089839fd04268;hp=e591f72bcdeb0abf8d6714e94219de4cdc2d7720;hpb=661dd5c840851194c7ee5a2603d5354dcf9bd212;p=powerpc.git

diff --git a/arch/arm/kernel/ptrace.c b/arch/arm/kernel/ptrace.c
index e591f72bcd..9254ba2f46 100644
--- a/arch/arm/kernel/ptrace.c
+++ b/arch/arm/kernel/ptrace.c
@@ -9,7 +9,6 @@
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
  */
-#include <linux/config.h>
 #include <linux/kernel.h>
 #include <linux/sched.h>
 #include <linux/mm.h>
@@ -610,15 +609,12 @@ static int ptrace_setfpregs(struct task_struct *tsk, void __user *ufp)
 static int ptrace_getwmmxregs(struct task_struct *tsk, void __user *ufp)
 {
 	struct thread_info *thread = task_thread_info(tsk);
-	void *ptr = &thread->fpstate;
 
 	if (!test_ti_thread_flag(thread, TIF_USING_IWMMXT))
 		return -ENODATA;
 	iwmmxt_task_disable(thread);  /* force it to ram */
-	/* The iWMMXt state is stored doubleword-aligned.  */
-	if (((long) ptr) & 4)
-		ptr += 4;
-	return copy_to_user(ufp, ptr, 0x98) ? -EFAULT : 0;
+	return copy_to_user(ufp, &thread->fpstate.iwmmxt, IWMMXT_SIZE)
+		? -EFAULT : 0;
 }
 
 /*
@@ -627,19 +623,42 @@ static int ptrace_getwmmxregs(struct task_struct *tsk, void __user *ufp)
 static int ptrace_setwmmxregs(struct task_struct *tsk, void __user *ufp)
 {
 	struct thread_info *thread = task_thread_info(tsk);
-	void *ptr = &thread->fpstate;
 
 	if (!test_ti_thread_flag(thread, TIF_USING_IWMMXT))
 		return -EACCES;
 	iwmmxt_task_release(thread);  /* force a reload */
-	/* The iWMMXt state is stored doubleword-aligned.  */
-	if (((long) ptr) & 4)
-		ptr += 4;
-	return copy_from_user(ptr, ufp, 0x98) ? -EFAULT : 0;
+	return copy_from_user(&thread->fpstate.iwmmxt, ufp, IWMMXT_SIZE)
+		? -EFAULT : 0;
 }
 
 #endif
 
+#ifdef CONFIG_CRUNCH
+/*
+ * Get the child Crunch state.
+ */
+static int ptrace_getcrunchregs(struct task_struct *tsk, void __user *ufp)
+{
+	struct thread_info *thread = task_thread_info(tsk);
+
+	crunch_task_disable(thread);  /* force it to ram */
+	return copy_to_user(ufp, &thread->crunchstate, CRUNCH_SIZE)
+		? -EFAULT : 0;
+}
+
+/*
+ * Set the child Crunch state.
+ */
+static int ptrace_setcrunchregs(struct task_struct *tsk, void __user *ufp)
+{
+	struct thread_info *thread = task_thread_info(tsk);
+
+	crunch_task_release(thread);  /* force a reload */
+	return copy_from_user(&thread->crunchstate, ufp, CRUNCH_SIZE)
+		? -EFAULT : 0;
+}
+#endif
+
 long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 {
 	unsigned long tmp;
@@ -766,6 +785,21 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 				       (unsigned long __user *) data);
 			break;
 
+		case PTRACE_SET_SYSCALL:
+			ret = 0;
+			child->ptrace_message = data;
+			break;
+
+#ifdef CONFIG_CRUNCH
+		case PTRACE_GETCRUNCHREGS:
+			ret = ptrace_getcrunchregs(child, (void __user *)data);
+			break;
+
+		case PTRACE_SETCRUNCHREGS:
+			ret = ptrace_setcrunchregs(child, (void __user *)data);
+			break;
+#endif
+
 		default:
 			ret = ptrace_request(child, request, addr, data);
 			break;
@@ -774,14 +808,14 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 	return ret;
 }
 
-asmlinkage void syscall_trace(int why, struct pt_regs *regs)
+asmlinkage int syscall_trace(int why, struct pt_regs *regs, int scno)
 {
 	unsigned long ip;
 
 	if (!test_thread_flag(TIF_SYSCALL_TRACE))
-		return;
+		return scno;
 	if (!(current->ptrace & PT_PTRACED))
-		return;
+		return scno;
 
 	/*
 	 * Save IP.  IP is used to denote syscall entry/exit:
@@ -790,6 +824,8 @@ asmlinkage void syscall_trace(int why, struct pt_regs *regs)
 	ip = regs->ARM_ip;
 	regs->ARM_ip = why;
 
+	current->ptrace_message = scno;
+
 	/* the 0x80 provides a way for the tracing parent to distinguish
 	   between a syscall stop and SIGTRAP delivery */
 	ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD)
@@ -804,4 +840,6 @@ asmlinkage void syscall_trace(int why, struct pt_regs *regs)
 		current->exit_code = 0;
 	}
 	regs->ARM_ip = ip;
+
+	return current->ptrace_message;
 }