[PATCH -tip v11 21/27] ia64: Add instruction_pointer_set() API
From: Masami Hiramatsu <mhiramat@kernel.org>
Date: 2021-09-14 14:42:41
Also in:
lkml
Subsystem:
ptrace support, the rest · Maintainers:
Oleg Nesterov, Linus Torvalds
Add instruction_pointer_set() API for ia64. Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> --- Changes in v9: - Fix "space at the start of a line" checkpatch warnings. Changes in v4: - Make the API macro for avoiding a build error. --- arch/ia64/include/asm/ptrace.h | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/arch/ia64/include/asm/ptrace.h b/arch/ia64/include/asm/ptrace.h
index 08179135905c..8a2d0f72b324 100644
--- a/arch/ia64/include/asm/ptrace.h
+++ b/arch/ia64/include/asm/ptrace.h@@ -51,6 +51,11 @@ * the canonical representation by adding to instruction pointer. */ # define instruction_pointer(regs) ((regs)->cr_iip + ia64_psr(regs)->ri) +# define instruction_pointer_set(regs, val) \ +({ \ + ia64_psr(regs)->ri = (val & 0xf); \ + regs->cr_iip = (val & ~0xfULL); \ +}) static inline unsigned long user_stack_pointer(struct pt_regs *regs) {