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From: Masami Hiramatsu <mhiramat@kernel.org>
To: Steven Rostedt <rostedt@goodmis.org>, Ingo Molnar <mingo@kernel.org>
Cc: X86 ML <x86@kernel.org>, Masami Hiramatsu <mhiramat@kernel.org>,
	Daniel Xu <dxu@dxuuu.xyz>,
	linux-kernel@vger.kernel.org, bpf@vger.kernel.org,
	kuba@kernel.org, mingo@redhat.com, ast@kernel.org,
	tglx@linutronix.de, kernel-team@fb.com, yhs@fb.com,
	Josh Poimboeuf <jpoimboe@redhat.com>
Subject: [PATCH -tip v2 07/10] ia64: Add instruction_pointer_set() API
Date: Fri, 12 Mar 2021 15:43:01 +0900	[thread overview]
Message-ID: <161553138146.1038734.1781283504485314206.stgit@devnote2> (raw)
In-Reply-To: <161553130371.1038734.7661319550287837734.stgit@devnote2>

Add instruction_pointer_set() API for ia64.

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
---
 arch/ia64/include/asm/ptrace.h |    6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/ia64/include/asm/ptrace.h b/arch/ia64/include/asm/ptrace.h
index b3aa46090101..dbd9e85cbc77 100644
--- a/arch/ia64/include/asm/ptrace.h
+++ b/arch/ia64/include/asm/ptrace.h
@@ -71,6 +71,12 @@ 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.
  */


  parent reply	other threads:[~2021-03-12  6:44 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-12  6:41 [PATCH -tip v2 00/10] kprobes: Fix stacktrace with kretprobes Masami Hiramatsu
2021-03-12  6:41 ` [PATCH -tip v2 01/10] ia64: kprobes: Fix to pass correct trampoline address to the handler Masami Hiramatsu
2021-03-12  6:42 ` [PATCH -tip v2 02/10] kprobes: treewide: Replace arch_deref_entry_point() with dereference_function_descriptor() Masami Hiramatsu
2021-05-24  9:26   ` Naveen N. Rao
2021-05-24 23:41     ` Masami Hiramatsu
2021-03-12  6:42 ` [PATCH -tip v2 03/10] kprobes: treewide: Remove trampoline_address from kretprobe_trampoline_handler() Masami Hiramatsu
2021-03-12  6:42 ` [PATCH -tip v2 04/10] kprobes: stacktrace: Recover the address changed by kretprobe Masami Hiramatsu
2021-03-17  0:27   ` Masami Hiramatsu
2021-03-12  6:42 ` [PATCH -tip v2 05/10] x86/kprobes: Add UNWIND_HINT_FUNC on kretprobe_trampoline code Masami Hiramatsu
2021-03-12  6:42 ` [PATCH -tip v2 06/10] ARC: Add instruction_pointer_set() API Masami Hiramatsu
2021-03-12  6:43 ` Masami Hiramatsu [this message]
2021-03-12  6:43 ` [PATCH -tip v2 08/10] kprobes: Setup instruction pointer in __kretprobe_trampoline_handler Masami Hiramatsu
2021-03-12  6:43 ` [PATCH -tip v2 09/10] x86/unwind/orc: Fixup kretprobe trampoline entry Masami Hiramatsu
2021-03-12  6:43 ` [PATCH -tip v2 10/10] tracing: Remove kretprobe unknown indicator from stacktrace Masami Hiramatsu
2021-03-12 18:56 ` [PATCH -tip v2 00/10] kprobes: Fix stacktrace with kretprobes Daniel Xu
2021-03-16  2:30 ` Josh Poimboeuf
2021-03-16  6:30   ` Masami Hiramatsu
2021-05-17 21:06     ` Andrii Nakryiko
2021-05-23 14:22       ` Masami Hiramatsu
2021-05-24 17:49         ` Andrii Nakryiko

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