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-rw-r--r--arch/powerpc/kernel/ptrace.c12
-rw-r--r--include/asm-powerpc/ptrace.h7
2 files changed, 13 insertions, 6 deletions
diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c
index 3e17d154d0d..b970d797177 100644
--- a/arch/powerpc/kernel/ptrace.c
+++ b/arch/powerpc/kernel/ptrace.c
@@ -256,7 +256,7 @@ static int set_evrregs(struct task_struct *task, unsigned long *data)
#endif /* CONFIG_SPE */
-static void set_single_step(struct task_struct *task)
+void user_enable_single_step(struct task_struct *task)
{
struct pt_regs *regs = task->thread.regs;
@@ -271,7 +271,7 @@ static void set_single_step(struct task_struct *task)
set_tsk_thread_flag(task, TIF_SINGLESTEP);
}
-static void clear_single_step(struct task_struct *task)
+void user_disable_single_step(struct task_struct *task)
{
struct pt_regs *regs = task->thread.regs;
@@ -313,7 +313,7 @@ static int ptrace_set_debugreg(struct task_struct *task, unsigned long addr,
void ptrace_disable(struct task_struct *child)
{
/* make sure the single step bit is not set. */
- clear_single_step(child);
+ user_disable_single_step(child);
}
/*
@@ -456,7 +456,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
child->exit_code = data;
/* make sure the single step bit is not set. */
- clear_single_step(child);
+ user_disable_single_step(child);
wake_up_process(child);
ret = 0;
break;
@@ -473,7 +473,7 @@ 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_single_step(child);
+ user_disable_single_step(child);
wake_up_process(child);
break;
}
@@ -483,7 +483,7 @@ 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_single_step(child);
+ user_enable_single_step(child);
child->exit_code = data;
/* give it a chance to run. */
wake_up_process(child);
diff --git a/include/asm-powerpc/ptrace.h b/include/asm-powerpc/ptrace.h
index 13fccc5a411..3063363f679 100644
--- a/include/asm-powerpc/ptrace.h
+++ b/include/asm-powerpc/ptrace.h
@@ -119,6 +119,13 @@ do { \
} while (0)
#endif /* __powerpc64__ */
+/*
+ * 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 *);
+
#endif /* __ASSEMBLY__ */
#endif /* __KERNEL__ */