Add instruction_pointer_set() API for ia64.
Signed-off-by: Masami Hiramatsu <mhiramat@xxxxxxxxxx>
---
arch/ia64/include/asm/ptrace.h | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/arch/ia64/include/asm/ptrace.h b/arch/ia64/include/asm/ptrace.h
index b3aa46090101..e382f1a6bff3 100644
--- a/arch/ia64/include/asm/ptrace.h
+++ b/arch/ia64/include/asm/ptrace.h
@@ -45,6 +45,7 @@
#include <asm/current.h>
#include <asm/page.h>
+# define ia64_psr(regs) ((struct ia64_psr *) &(regs)->cr_ipsr)
/*
* We use the ia64_psr(regs)->ri to determine which of the three
* instructions in bundle (16 bytes) took the sample. Generate
@@ -71,6 +72,12 @@ static inline long regs_return_value(struct pt_regs *regs)
return -regs->r8;
}
+static inline void instruction_pointer_set(struct pt_regs *regs, unsigned long val)
+{
+ ia64_psr(regs)->ri = (val & 0xf);
+ regs->cr_iip = (val & ~0xfULL);
+}
+
/* Conserve space in histogram by encoding slot bits in address
* bits 2 and 3 rather than bits 0 and 1.
*/
@@ -87,7 +94,6 @@ static inline long regs_return_value(struct pt_regs *regs)
/* given a pointer to a task_struct, return the user's pt_regs */
# define task_pt_regs(t) (((struct pt_regs *) ((char *) (t) + IA64_STK_OFFSET)) - 1)
-# define ia64_psr(regs) ((struct ia64_psr *) &(regs)->cr_ipsr)
# define user_mode(regs) (((struct ia64_psr *) &(regs)->cr_ipsr)->cpl != 0)
# define user_stack(task,regs) ((long) regs - (long) task == IA64_STK_OFFSET - sizeof(*regs))
# define fsys_mode(task,regs) \
