[Patch AArch64] Include asm/ptrace.h in aarch64-linux-nat.c

[Ramana Radhakrishnan <ramana.radhakrishnan@arm.com>]

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Hi,

	A recent change to glibc removed asm/ptrace.h from user.h for AArch64. 
This meant that cross-native builds of gdb using trunk glibc broke 
because aarch64-linux-nat.c because user_hwdebug_state couldn't be found.

Fixed by including asm/ptrace.h like other ports.

Ok ?

regards
Ramana

2014-05-22  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>

        * aarch64-linux-nat.c (asm/ptrace.h): Include.


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commit 53278fc086b53264d75ec9cb2a4929565276100a
Author: Ramana Radhakrishnan <ramana.radhakrishnan@arm.com>
Date:   Thu May 22 09:41:41 2014 +0100

    Include asm/ptrace.h for recent glibc changes.

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 6f5c9c2..95df3e1 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,9 @@
 2014-05-22  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
 
+	* aarch64-linux-nat.c (asm/ptrace.h): Include.
+
+2014-05-22  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
+
 	* MAINTAINERS (Write After Approval): Move self back from
 	Paper trail.
 
diff --git a/gdb/aarch64-linux-nat.c b/gdb/aarch64-linux-nat.c
index 28ad38b..877e702 100644
--- a/gdb/aarch64-linux-nat.c
+++ b/gdb/aarch64-linux-nat.c
@@ -33,6 +33,7 @@
 
 #include <sys/ptrace.h>
 #include <sys/utsname.h>
+#include <asm/ptrace.h>
 
 #include "gregset.h"