[PATCH 3/5] asm/ptrace.h: add instruction_pointer_set

[Renzo Davoli]

Add an instruction_pointer_set function for architectures that do
not currently provide one.

Signed-off-by: Renzo Davoli <renzo at cs.unibo.it>
---
 arch/alpha/include/asm/ptrace.h      | 6 ++++++
 arch/hexagon/include/asm/ptrace.h    | 6 ++++++
 arch/m68k/include/asm/ptrace.h       | 6 ++++++
 arch/microblaze/include/asm/ptrace.h | 6 ++++++
 arch/nios2/include/asm/ptrace.h      | 6 ++++++
 arch/um/include/asm/ptrace-generic.h | 6 ++++++
 arch/xtensa/include/asm/ptrace.h     | 6 ++++++
 7 files changed, 42 insertions(+)

diff --git a/arch/alpha/include/asm/ptrace.h b/arch/alpha/include/asm/ptrace.h
index 3557ce64ed21..0821fe9a27c8 100644
--- a/arch/alpha/include/asm/ptrace.h
+++ b/arch/alpha/include/asm/ptrace.h
@@ -24,4 +24,10 @@ static inline unsigned long regs_return_value(struct pt_regs *regs)
 	return regs->r0;
 }
 
+static inline void instruction_pointer_set(struct pt_regs *regs,
+					   unsigned long val)
+{
+	instruction_pointer(regs) = val;
+}
+
 #endif
diff --git a/arch/hexagon/include/asm/ptrace.h b/arch/hexagon/include/asm/ptrace.h
index ed35da1ee685..0a121f6e3bfc 100644
--- a/arch/hexagon/include/asm/ptrace.h
+++ b/arch/hexagon/include/asm/ptrace.h
@@ -18,6 +18,12 @@ extern const char *regs_query_register_name(unsigned int offset);
 	((struct pt_regs *) \
 	 ((unsigned long)current_thread_info() + THREAD_SIZE) - 1)
 
+static inline void instruction_pointer_set(struct pt_regs *regs,
+					   unsigned long val)
+{
+	instruction_pointer(regs) = val;
+}
+
 #if CONFIG_HEXAGON_ARCH_VERSION >= 4
 #define arch_has_single_step()	(1)
 #endif
diff --git a/arch/m68k/include/asm/ptrace.h b/arch/m68k/include/asm/ptrace.h
index bc86ce012025..6e8a8f0daee8 100644
--- a/arch/m68k/include/asm/ptrace.h
+++ b/arch/m68k/include/asm/ptrace.h
@@ -18,6 +18,12 @@
 	(struct pt_regs *)((char *)current_thread_info() + THREAD_SIZE) - 1
 #define current_user_stack_pointer() rdusp()
 
+static inline void instruction_pointer_set(struct pt_regs *regs,
+					   unsigned long val)
+{
+	instruction_pointer(regs) = val;
+}
+
 #define arch_has_single_step()	(1)
 
 #ifdef CONFIG_MMU
diff --git a/arch/microblaze/include/asm/ptrace.h b/arch/microblaze/include/asm/ptrace.h
index 17982292a64f..69e10658d7a9 100644
--- a/arch/microblaze/include/asm/ptrace.h
+++ b/arch/microblaze/include/asm/ptrace.h
@@ -20,5 +20,11 @@ static inline long regs_return_value(struct pt_regs *regs)
 	return regs->r3;
 }
 
+static inline void instruction_pointer_set(struct pt_regs *regs,
+					   unsigned long val)
+{
+	instruction_pointer(regs) = val;
+}
+
 #endif /* __ASSEMBLER__ */
 #endif /* _ASM_MICROBLAZE_PTRACE_H */
diff --git a/arch/nios2/include/asm/ptrace.h b/arch/nios2/include/asm/ptrace.h
index 96cbcd40c7ce..d120d8ecb187 100644
--- a/arch/nios2/include/asm/ptrace.h
+++ b/arch/nios2/include/asm/ptrace.h
@@ -70,6 +70,12 @@ struct switch_stack {
 #define user_stack_pointer(regs)	((regs)->sp)
 extern void show_regs(struct pt_regs *);
 
+static inline void instruction_pointer_set(struct pt_regs *regs,
+					   unsigned long val)
+{
+	instruction_pointer(regs) = val;
+}
+
 #define current_pt_regs() \
 	((struct pt_regs *)((unsigned long)current_thread_info() + THREAD_SIZE)\
 		- 1)
diff --git a/arch/um/include/asm/ptrace-generic.h b/arch/um/include/asm/ptrace-generic.h
index 86d74f9d33cf..44beb96862d8 100644
--- a/arch/um/include/asm/ptrace-generic.h
+++ b/arch/um/include/asm/ptrace-generic.h
@@ -29,6 +29,12 @@ struct pt_regs {
 
 #define PTRACE_OLDSETOPTIONS 21
 
+static inline void instruction_pointer_set(struct pt_regs *regs,
+					   unsigned long val)
+{
+	instruction_pointer(regs) = val;
+}
+
 struct task_struct;
 
 extern long subarch_ptrace(struct task_struct *child, long request,
diff --git a/arch/xtensa/include/asm/ptrace.h b/arch/xtensa/include/asm/ptrace.h
index d0568ff6d349..97b14418955e 100644
--- a/arch/xtensa/include/asm/ptrace.h
+++ b/arch/xtensa/include/asm/ptrace.h
@@ -103,6 +103,12 @@ static inline unsigned long regs_return_value(struct pt_regs *regs)
 	return regs->areg[2];
 }
 
+static inline void instruction_pointer_set(struct pt_regs *regs,
+					   unsigned long val)
+{
+	instruction_pointer(regs) = val;
+}
+
 int do_syscall_trace_enter(struct pt_regs *regs);
 void do_syscall_trace_leave(struct pt_regs *regs);
 
-- 
2.53.0