---

yaml --- r: 79867 b: refs/heads/master c: 7f23234 h: refs/heads/master i: 79865: aed5f7c 79863: c43e0ae v: v3
git-mirror · Jan 30, 2008 · 6ed03a1 · 6ed03a1
1 parent 194cf78
commit 6ed03a1
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Showing 4 changed files with 20 additions and 13 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 77c03dcd448aa4c7be45f4edb97381ef463e3911
+refs/heads/master: 7f232343e0ea37ffc0a552cdbd4825482c949281
diff --git a/trunk/arch/x86/kernel/ptrace_32.c b/trunk/arch/x86/kernel/ptrace_32.c
@@ -218,7 +218,7 @@ static inline int is_setting_trap_flag(struct task_struct *child, struct pt_regs
 	return 0;
 }
 
-static void set_singlestep(struct task_struct *child)
+void user_enable_single_step(struct task_struct *child)
 {
 	struct pt_regs *regs = get_child_regs(child);
 
@@ -249,7 +249,7 @@ static void set_singlestep(struct task_struct *child)
 	child->ptrace |= PT_DTRACE;
 }
 
-static void clear_singlestep(struct task_struct *child)
+void user_disable_single_step(struct task_struct *child)
 {
 	/* Always clear TIF_SINGLESTEP... */
 	clear_tsk_thread_flag(child, TIF_SINGLESTEP);
@@ -269,7 +269,7 @@ static void clear_singlestep(struct task_struct *child)
  */
 void ptrace_disable(struct task_struct *child)
 { 
-	clear_singlestep(child);
+	user_disable_single_step(child);
 	clear_tsk_thread_flag(child, TIF_SYSCALL_EMU);
 }
 
@@ -403,7 +403,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 		}
 		child->exit_code = data;
 		/* make sure the single step bit is not set. */
-		clear_singlestep(child);
+		user_disable_single_step(child);
 		wake_up_process(child);
 		ret = 0;
 		break;
@@ -419,7 +419,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 			break;
 		child->exit_code = SIGKILL;
 		/* make sure the single step bit is not set. */
-		clear_singlestep(child);
+		user_disable_single_step(child);
 		wake_up_process(child);
 		break;
 
@@ -435,7 +435,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 			clear_tsk_thread_flag(child, TIF_SYSCALL_EMU);
 
 		clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
-		set_singlestep(child);
+		user_enable_single_step(child);
 		child->exit_code = data;
 		/* give it a chance to run. */
 		wake_up_process(child);

diff --git a/trunk/arch/x86/kernel/ptrace_64.c b/trunk/arch/x86/kernel/ptrace_64.c
@@ -170,7 +170,7 @@ static int is_setting_trap_flag(struct task_struct *child, struct pt_regs *regs)
 	return 0;
 }
 
-static void set_singlestep(struct task_struct *child)
+void user_enable_single_step(struct task_struct *child)
 {
 	struct pt_regs *regs = task_pt_regs(child);
 
@@ -201,7 +201,7 @@ static void set_singlestep(struct task_struct *child)
 	child->ptrace |= PT_DTRACE;
 }
 
-static void clear_singlestep(struct task_struct *child)
+void user_disable_single_step(struct task_struct *child)
 {
 	/* Always clear TIF_SINGLESTEP... */
 	clear_tsk_thread_flag(child, TIF_SINGLESTEP);
@@ -221,7 +221,7 @@ static void clear_singlestep(struct task_struct *child)
  */
 void ptrace_disable(struct task_struct *child)
 { 
-	clear_singlestep(child);
+	user_disable_single_step(child);
 }
 
 static int putreg(struct task_struct *child,
@@ -461,7 +461,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 		clear_tsk_thread_flag(child, TIF_SINGLESTEP);
 		child->exit_code = data;
 		/* make sure the single step bit is not set. */
-		clear_singlestep(child);
+		user_disable_single_step(child);
 		wake_up_process(child);
 		ret = 0;
 		break;
@@ -504,7 +504,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 		clear_tsk_thread_flag(child, TIF_SINGLESTEP);
 		child->exit_code = SIGKILL;
 		/* make sure the single step bit is not set. */
-		clear_singlestep(child);
+		user_disable_single_step(child);
 		wake_up_process(child);
 		break;
 
@@ -513,7 +513,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 		if (!valid_signal(data))
 			break;
 		clear_tsk_thread_flag(child,TIF_SYSCALL_TRACE);
-		set_singlestep(child);
+		user_enable_single_step(child);
 		child->exit_code = data;
 		/* give it a chance to run. */
 		wake_up_process(child);

diff --git a/trunk/include/asm-x86/ptrace.h b/trunk/include/asm-x86/ptrace.h
@@ -140,6 +140,13 @@ enum {
 
 #ifdef __KERNEL__
 
+/*
+ * These are defined as per linux/ptrace.h, which see.
+ */
+#define arch_has_single_step()	(1)
+extern void user_enable_single_step(struct task_struct *);
+extern void user_disable_single_step(struct task_struct *);
+
 struct user_desc;
 extern int do_get_thread_area(struct task_struct *p, int idx,
 			      struct user_desc __user *info);