gdb: fix header ordering for TRAP_HWBKPT

This error can appear in gdb/nat/linux-ptrace.c because of
the order in which some headers are processed:
| In file included from ../../gdb-7.11.1/gdb/nat/linux-ptrace.c:20:0:
| ../../gdb-7.11.1/gdb/nat/linux-ptrace.h:175:22: error: expected identifier before numeric constant
|  # define TRAP_HWBKPT 4
|                       ^
| Makefile:2357: recipe for target 'linux-ptrace.o' failed
| make[2]: *** [linux-ptrace.o] Error 1
| make[2]: *** Waiting for unfinished jobs....
| make[2]: Leaving directory '/oe/build/tmp-rpb-glibc/work/aarch64-linaro-linux/gdb/7.11.1-r0/build-aarch64-linaro-linux/gdb'
| Makefile:8822: recipe for target 'all-gdb' failed
| make[1]: *** [all-gdb] Error 2
| make[1]: Leaving directory '/oe/build/tmp-rpb-glibc/work/aarch64-linaro-linux/gdb/7.11.1-r0/build-aarch64-linaro-linux'
| Makefile:846: recipe for target 'all' failed
| make: *** [all] Error 2

A patch from GDB's current master solves the issue.

Signed-off-by: Daniel Díaz <daniel.diaz@linaro.org>
Signed-off-by: Ross Burton <ross.burton@intel.com>

2 files changed, 52 insertions, 0 deletions

diff --git a/meta/recipes-devtools/gdb/gdb-8.0.1.inc b/meta/recipes-devtools/gdb/gdb-8.0.1.inc
index 83c08e55a3..4a5299b73f 100644
--- a/meta/recipes-devtools/gdb/gdb-8.0.1.inc
+++ b/meta/recipes-devtools/gdb/gdb-8.0.1.inc
@@ -17,6 +17,7 @@ SRC_URI = "http://ftp.gnu.org/gnu/gdb/gdb-${PV}.tar.xz \
            file://0010-resolve-restrict-keyword-conflict.patch \
            file://package_devel_gdb_patches_120-sigprocmask-invalid-call.patch \
            file://0012-Unbreak-GDBserver-build-for-x32.patch \
+           file://gdb-Fix-ia64-defining-TRAP_HWBKPT-before-including-g.patch \
 "
 SRC_URI[md5sum] = "48cac527e6f3018b865ece021e9723ac"
 SRC_URI[sha256sum] = "3dbd5f93e36ba2815ad0efab030dcd0c7b211d7b353a40a53f4c02d7d56295e3"
diff --git a/meta/recipes-devtools/gdb/gdb/gdb-Fix-ia64-defining-TRAP_HWBKPT-before-including-g.patch b/meta/recipes-devtools/gdb/gdb/gdb-Fix-ia64-defining-TRAP_HWBKPT-before-including-g.patch
new file mode 100644
index 0000000000..c7b1d0d902
--- /dev/null
+++ b/meta/recipes-devtools/gdb/gdb/gdb-Fix-ia64-defining-TRAP_HWBKPT-before-including-g.patch
@@ -0,0 +1,51 @@
+From b033a9663053eed87cb572397176747b88e9a699 Mon Sep 17 00:00:00 2001
+From: James Clarke <jrtc27@jrtc27.com>
+Date: Fri, 19 Jan 2018 17:22:49 +0000
+Subject: [PATCH] gdb: Fix ia64 defining TRAP_HWBKPT before including
+ gdb_wait.h
+
+On ia64, gdb_wait.h eventually includes siginfo-consts-arch.h, which
+contains an enum with TRAP_HWBKPT, along with a #define. Thus we cannot
+define TRAP_HWBKPT to 4 beforehand, and so gdb_wait.h must be included
+earlier; include it from linux-ptrace.h so it can never come afterwards.
+
+gdb/ChangeLog:
+
+	* nat/linux-ptrace.c: Remove unnecessary reinclusion of
+	gdb_ptrace.h, and move including gdb_wait.h ...
+	* nat/linux-ptrace.h: ... to here.
+
+Upstream-Status: Accepted [https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;a=commit;h=5a6c3296a7a90694ad4042f6256f3da6d4fa4ee8]
+---
+ gdb/nat/linux-ptrace.c | 2 --
+ gdb/nat/linux-ptrace.h | 1 +
+ 2 files changed, 1 insertion(+), 2 deletions(-)
+
+diff --git a/gdb/nat/linux-ptrace.c b/gdb/nat/linux-ptrace.c
+index 3265b16..559c2de 100644
+--- a/gdb/nat/linux-ptrace.c
++++ b/gdb/nat/linux-ptrace.c
+@@ -21,8 +21,6 @@
+ #include "linux-procfs.h"
+ #include "linux-waitpid.h"
+ #include "buffer.h"
+-#include "gdb_wait.h"
+-#include "gdb_ptrace.h"
+ #ifdef HAVE_SYS_PROCFS_H
+ #include <sys/procfs.h>
+ #endif
+diff --git a/gdb/nat/linux-ptrace.h b/gdb/nat/linux-ptrace.h
+index 5954945..6faa89b 100644
+--- a/gdb/nat/linux-ptrace.h
++++ b/gdb/nat/linux-ptrace.h
+@@ -21,6 +21,7 @@
+ struct buffer;
+ 
+ #include "nat/gdb_ptrace.h"
++#include "gdb_wait.h"
+ 
+ #ifdef __UCLIBC__
+ #if !(defined(__UCLIBC_HAS_MMU__) || defined(__ARCH_HAS_MMU__))
+-- 
+2.7.4
+