This is a note to let you know that I've just added the patch titled
ARC: Implement ptrace(PTRACE_GET_THREAD_AREA)
to the 3.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
arc-implement-ptrace-ptrace_get_thread_area.patch
and it can be found in the queue-3.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From a4b6cb735b25aa84a462a1985e3e43bebaf5beb4 Mon Sep 17 00:00:00 2001
From: Anton Kolesov <Anton.Kolesov@xxxxxxxxxxxx>
Date: Fri, 20 Jun 2014 20:28:39 +0400
Subject: ARC: Implement ptrace(PTRACE_GET_THREAD_AREA)
From: Anton Kolesov <Anton.Kolesov@xxxxxxxxxxxx>
commit a4b6cb735b25aa84a462a1985e3e43bebaf5beb4 upstream.
This patch adds implementation of GET_THREAD_AREA ptrace request type. This
is required by GDB to debug NPTL applications.
Signed-off-by: Anton Kolesov <Anton.Kolesov@xxxxxxxxxxxx>
Signed-off-by: Vineet Gupta <vgupta@xxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/arc/include/uapi/asm/ptrace.h | 1 +
arch/arc/kernel/ptrace.c | 4 ++++
2 files changed, 5 insertions(+)
--- a/arch/arc/include/uapi/asm/ptrace.h
+++ b/arch/arc/include/uapi/asm/ptrace.h
@@ -11,6 +11,7 @@
#ifndef _UAPI__ASM_ARC_PTRACE_H
#define _UAPI__ASM_ARC_PTRACE_H
+#define PTRACE_GET_THREAD_AREA 25
#ifndef __ASSEMBLY__
/*
--- a/arch/arc/kernel/ptrace.c
+++ b/arch/arc/kernel/ptrace.c
@@ -146,6 +146,10 @@ long arch_ptrace(struct task_struct *chi
pr_debug("REQ=%ld: ADDR =0x%lx, DATA=0x%lx)\n", request, addr, data);
switch (request) {
+ case PTRACE_GET_THREAD_AREA:
+ ret = put_user(task_thread_info(child)->thr_ptr,
+ (unsigned long __user *)data);
+ break;
default:
ret = ptrace_request(child, request, addr, data);
break;
Patches currently in stable-queue which might be from Anton.Kolesov@xxxxxxxxxxxx are
queue-3.14/arc-implement-ptrace-ptrace_get_thread_area.patch
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