[RFC 1/7] Move initialize_tdesc_mips* calls from mips-linux-nat.c to mips-linux-tdep.c

[Yao Qi <qiyaoltc@gmail.com>]

Target description initialization are called in -tdep.c, instead of -nat.c
I've posted it separately
https://sourceware.org/ml/gdb-patches/2017-05/msg00204.html, include
it here to give more context.

gdb:

2017-05-09  Yao Qi  <yao.qi@linaro.org>

	* mips-linux-nat.c: Move include features/mips*-linux.c to
	mips-linux-tdep.c.
	(_initialize_mips_linux_nat): Move initialize_tdesc_mips* calls
	to mips-linux-tdep.c.
	* mips-linux-tdep.c: Include features/mips*-linux.c
	(_initialize_mips_linux_tdep): Call initialize_tdesc_mips*
	functions.
	* mips-linux-tdep.h (tdesc_mips_linux): Declare.
	(tdesc_mips_dsp_linux, tdesc_mips64_linux): Declare.
	(tdesc_mips64_dsp_linux): Declare.
---
 gdb/mips-linux-nat.c  | 11 -----------
 gdb/mips-linux-tdep.c | 11 +++++++++++
 gdb/mips-linux-tdep.h |  6 ++++++
 3 files changed, 17 insertions(+), 11 deletions(-)

diff --git a/gdb/mips-linux-nat.c b/gdb/mips-linux-nat.c
index 8041d84..1fd3365 100644
--- a/gdb/mips-linux-nat.c
+++ b/gdb/mips-linux-nat.c
@@ -38,11 +38,6 @@
 
 #include "nat/mips-linux-watch.h"
 
-#include "features/mips-linux.c"
-#include "features/mips-dsp-linux.c"
-#include "features/mips64-linux.c"
-#include "features/mips64-dsp-linux.c"
-
 #ifndef PTRACE_GET_THREAD_AREA
 #define PTRACE_GET_THREAD_AREA 25
 #endif
@@ -803,10 +798,4 @@ triggers a breakpoint or watchpoint."),
 
   linux_nat_add_target (t);
   linux_nat_set_new_thread (t, mips_linux_new_thread);
-
-  /* Initialize the standard target descriptions.  */
-  initialize_tdesc_mips_linux ();
-  initialize_tdesc_mips_dsp_linux ();
-  initialize_tdesc_mips64_linux ();
-  initialize_tdesc_mips64_dsp_linux ();
 }
diff --git a/gdb/mips-linux-tdep.c b/gdb/mips-linux-tdep.c
index 48a582a..0f22a92 100644
--- a/gdb/mips-linux-tdep.c
+++ b/gdb/mips-linux-tdep.c
@@ -40,6 +40,11 @@
 #include "xml-syscall.h"
 #include "gdb_signals.h"
 
+#include "features/mips-linux.c"
+#include "features/mips-dsp-linux.c"
+#include "features/mips64-linux.c"
+#include "features/mips64-dsp-linux.c"
+
 static struct target_so_ops mips_svr4_so_ops;
 
 /* This enum represents the signals' numbers on the MIPS
@@ -1764,4 +1769,10 @@ _initialize_mips_linux_tdep (void)
 			      GDB_OSABI_LINUX,
 			      mips_linux_init_abi);
     }
+
+  /* Initialize the standard target descriptions.  */
+  initialize_tdesc_mips_linux ();
+  initialize_tdesc_mips_dsp_linux ();
+  initialize_tdesc_mips64_linux ();
+  initialize_tdesc_mips64_dsp_linux ();
 }
diff --git a/gdb/mips-linux-tdep.h b/gdb/mips-linux-tdep.h
index 407b577..cca4798 100644
--- a/gdb/mips-linux-tdep.h
+++ b/gdb/mips-linux-tdep.h
@@ -105,3 +105,9 @@ enum {
 /* Return 1 if MIPS_RESTART_REGNUM is usable.  */
 
 int mips_linux_restart_reg_p (struct gdbarch *gdbarch);
+
+/* Target descriptions.  */
+extern struct target_desc *tdesc_mips_linux;
+extern struct target_desc *tdesc_mips64_linux;
+extern struct target_desc *tdesc_mips_dsp_linux;
+extern struct target_desc *tdesc_mips64_dsp_linux;
-- 
1.9.1