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ARC: Implement ptrace(PTRACE_GET_THREAD_AREA)

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commit a4b6cb735b 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@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Anton Kolesov 2014-06-20 20:28:39 +04:00 committed by Greg Kroah-Hartman
parent 4aba6e3634
commit a290f3552c
2 changed files with 5 additions and 0 deletions
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1
arch/arc/include/uapi/asm/ptrace.h
View File

@ -11,6 +11,7 @@
#ifndef _UAPI__ASM_ARC_PTRACE_H
#define _UAPI__ASM_ARC_PTRACE_H
#define PTRACE_GET_THREAD_AREA 25
#ifndef __ASSEMBLY__
/*

4
arch/arc/kernel/ptrace.c
View File

@ -136,6 +136,10 @@ long arch_ptrace(struct task_struct *child, long request,
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;