Move aarch64_linux_prepare_to_resume to nat/aarch64-linux.c

gdb:

2015-08-25  Yao Qi  <yao.qi@linaro.org>

	* Makefile.in (aarch64-liunx.o): New rule.
	(HFILES_NO_SRCDIR): Add aarch64-linux.h.
	* config/aarch64/linux.mh (NAT_FILE): Add aarch64-linux.o.
	* aarch64-linux-nat.c: Include nat/aarch64-linux.h.
	* aarch64-linux-nat.c (aarch64_get_debug_reg_state): Make it
	extern.
	(aarch64_linux_prepare_to_resume): Move it nat/aarch64-linux.c.
	* nat/aarch64-linux-hw-point.h (aarch64_debug_reg_state): Declare
	* nat/aarch64-linux.c: New file.
	* nat/aarch64-linux.h: New file.

gdb/gdbserver:

2015-08-25  Yao Qi  <yao.qi@linaro.org>

	* Makefile.in (aarch64-linux.o): New rule.
	* configure.srv (aarch64*-*-linux*): Append aarch64-linux.o to
	srv_tgtobj.
	* linux-aarch64-low.c: Include nat/aarch64-linux.h.
	(aarch64_init_debug_reg_state): Make it extern.
	(aarch64_linux_prepare_to_resume): Remove.

11 files changed, 127 insertions, 81 deletions

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 6ffaaca..97c3a48 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,18 @@
 2015-08-25  Yao Qi  <yao.qi@linaro.org>
 
+	* Makefile.in (aarch64-liunx.o): New rule.
+	(HFILES_NO_SRCDIR): Add aarch64-linux.h.
+	* config/aarch64/linux.mh (NAT_FILE): Add aarch64-linux.o.
+	* aarch64-linux-nat.c: Include nat/aarch64-linux.h.
+	* aarch64-linux-nat.c (aarch64_get_debug_reg_state): Make it
+	extern.
+	(aarch64_linux_prepare_to_resume): Move it nat/aarch64-linux.c.
+	* nat/aarch64-linux-hw-point.h (aarch64_debug_reg_state): Declare
+	* nat/aarch64-linux.c: New file.
+	* nat/aarch64-linux.h: New file.
+
+2015-08-25  Yao Qi  <yao.qi@linaro.org>
+
 	* aarch64-linux-nat.c (aarch64_linux_prepare_to_resume): Use
 	lwp_arch_private_info and ptid_of_lwp.
 
diff --git a/gdb/Makefile.in b/gdb/Makefile.in
index 924979b..0d7cf97 100644
--- a/gdb/Makefile.in
+++ b/gdb/Makefile.in
@@ -937,7 +937,7 @@ tui/tui-winsource.h tui/tui-regs.h tui/tui-io.h tui/tui-layout.h \
 tui/tui-source.h sol2-tdep.h gregset.h sh-tdep.h sh64-tdep.h \
 expression.h score-tdep.h gdb_select.h ser-tcp.h \
 extension.h extension-priv.h nat/aarch64-linux-hw-point.h \
-build-id.h buildsym.h valprint.h \
+build-id.h buildsym.h valprint.h nat/aarch64-linux.h \
 typeprint.h mi/mi-getopt.h mi/mi-parse.h mi/mi-console.h \
 mi/mi-out.h mi/mi-main.h mi/mi-common.h mi/mi-cmds.h linux-nat.h \
 complaints.h gdb_proc_service.h gdb_regex.h xtensa-tdep.h inf-loop.h \
@@ -2332,6 +2332,10 @@ aarch64-linux-hw-point.o: ${srcdir}/nat/aarch64-linux-hw-point.c
 	$(COMPILE) $(srcdir)/nat/aarch64-linux-hw-point.c
 	$(POSTCOMPILE)
 
+aarch64-linux.o: ${srcdir}/nat/aarch64-linux.c
+	$(COMPILE) $(srcdir)/nat/aarch64-linux.c
+	$(POSTCOMPILE)
+
 #
 # gdb/tui/ dependencies
 #
diff --git a/gdb/aarch64-linux-nat.c b/gdb/aarch64-linux-nat.c
index b23026a..ea56238 100644
--- a/gdb/aarch64-linux-nat.c
+++ b/gdb/aarch64-linux-nat.c
@@ -30,6 +30,7 @@
 #include "aarch64-tdep.h"
 #include "aarch64-linux-tdep.h"
 #include "aarch32-linux-nat.h"
+#include "nat/aarch64-linux.h"
 #include "nat/aarch64-linux-hw-point.h"
 
 #include "elf/external.h"
@@ -141,7 +142,7 @@ aarch64_forget_process (pid_t pid)
 
 /* Get debug registers state for process PID.  */
 
-static struct aarch64_debug_reg_state *
+struct aarch64_debug_reg_state *
 aarch64_get_debug_reg_state (pid_t pid)
 {
   return &aarch64_process_info_get (pid)->state;
@@ -425,47 +426,6 @@ supply_fpregset (struct regcache *regcache, const gdb_fpregset_t *fpregsetp)
 			  AARCH64_LINUX_SIZEOF_FPREGSET);
 }
 
-/* Called when resuming a thread.
-   The hardware debug registers are updated when there is any change.  */
-
-static void
-aarch64_linux_prepare_to_resume (struct lwp_info *lwp)
-{
-  struct arch_lwp_info *info = lwp_arch_private_info (lwp);
-
-  /* NULL means this is the main thread still going through the shell,
-     or, no watchpoint has been set yet.  In that case, there's
-     nothing to do.  */
-  if (info == NULL)
-    return;
-
-  if (DR_HAS_CHANGED (info->dr_changed_bp)
-      || DR_HAS_CHANGED (info->dr_changed_wp))
-    {
-      ptid_t ptid = ptid_of_lwp (lwp);
-      int tid = ptid_get_lwp (ptid);
-      struct aarch64_debug_reg_state *state
-	= aarch64_get_debug_reg_state (ptid_get_pid (ptid));
-
-      if (show_debug_regs)
-	fprintf_unfiltered (gdb_stdlog, "prepare_to_resume thread %d\n", tid);
-
-      /* Watchpoints.  */
-      if (DR_HAS_CHANGED (info->dr_changed_wp))
-	{
-	  aarch64_linux_set_debug_regs (state, tid, 1);
-	  DR_CLEAR_CHANGED (info->dr_changed_wp);
-	}
-
-      /* Breakpoints.  */
-      if (DR_HAS_CHANGED (info->dr_changed_bp))
-	{
-	  aarch64_linux_set_debug_regs (state, tid, 0);
-	  DR_CLEAR_CHANGED (info->dr_changed_bp);
-	}
-    }
-}
-
 static void
 aarch64_linux_new_thread (struct lwp_info *lp)
 {
diff --git a/gdb/config/aarch64/linux.mh b/gdb/config/aarch64/linux.mh
index 231aea1..ea56ff6 100644
--- a/gdb/config/aarch64/linux.mh
+++ b/gdb/config/aarch64/linux.mh
@@ -22,7 +22,8 @@ NAT_FILE= config/nm-linux.h
 NATDEPFILES= inf-ptrace.o fork-child.o aarch64-linux-nat.o aarch32-linux-nat.o \
 	proc-service.o linux-thread-db.o linux-nat.o linux-fork.o \
 	linux-procfs.o linux-ptrace.o linux-osdata.o linux-waitpid.o \
-	linux-personality.o linux-namespaces.o aarch64-linux-hw-point.o
+	linux-personality.o linux-namespaces.o aarch64-linux-hw-point.o \
+	aarch64-linux.o
 NAT_CDEPS = $(srcdir)/proc-service.list
 
 LOADLIBES= -ldl $(RDYNAMIC)
diff --git a/gdb/gdbserver/ChangeLog b/gdb/gdbserver/ChangeLog
index 6fdc29c..274f850 100644
--- a/gdb/gdbserver/ChangeLog
+++ b/gdb/gdbserver/ChangeLog
@@ -1,5 +1,14 @@
 2015-08-25  Yao Qi  <yao.qi@linaro.org>
 
+	* Makefile.in (aarch64-linux.o): New rule.
+	* configure.srv (aarch64*-*-linux*): Append aarch64-linux.o to
+	srv_tgtobj.
+	* linux-aarch64-low.c: Include nat/aarch64-linux.h.
+	(aarch64_init_debug_reg_state): Make it extern.
+	(aarch64_linux_prepare_to_resume): Remove.
+
+2015-08-25  Yao Qi  <yao.qi@linaro.org>
+
 	* linux-aarch64-low.c (aarch64_linux_prepare_to_resume): Use
 	lwp_arch_private_info and ptid_of_lwp.
 
diff --git a/gdb/gdbserver/Makefile.in b/gdb/gdbserver/Makefile.in
index 5e04e530..b715a32 100644
--- a/gdb/gdbserver/Makefile.in
+++ b/gdb/gdbserver/Makefile.in
@@ -609,6 +609,9 @@ linux-personality.o: ../nat/linux-personality.c
 aarch64-linux-hw-point.o: ../nat/aarch64-linux-hw-point.c
 	$(COMPILE) $<
 	$(POSTCOMPILE)
+aarch64-linux.o: ../nat/aarch64-linux.c
+	$(COMPILE) $<
+	$(POSTCOMPILE)
 btrace-common.o: ../common/btrace-common.c
 	$(COMPILE) $<
 	$(POSTCOMPILE)
diff --git a/gdb/gdbserver/configure.srv b/gdb/gdbserver/configure.srv
index 320c26a..aa232f8 100644
--- a/gdb/gdbserver/configure.srv
+++ b/gdb/gdbserver/configure.srv
@@ -52,6 +52,7 @@ case "${target}" in
 			srv_regobj="${srv_regobj} arm-with-neon.o"
 			srv_tgtobj="linux-aarch64-low.o aarch64-linux-hw-point.o"
 			srv_tgtobj="$srv_tgtobj linux-aarch32-low.o"
+			srv_tgtobj="$srv_tgtobj aarch64-linux.o"
 			srv_tgtobj="${srv_tgtobj} $srv_linux_obj"
 			srv_xmlfiles="aarch64.xml"
 			srv_xmlfiles="${srv_xmlfiles} aarch64-core.xml"
diff --git a/gdb/gdbserver/linux-aarch64-low.c b/gdb/gdbserver/linux-aarch64-low.c
index 4b1d7d5..d35d4e9 100644
--- a/gdb/gdbserver/linux-aarch64-low.c
+++ b/gdb/gdbserver/linux-aarch64-low.c
@@ -21,6 +21,7 @@
 
 #include "server.h"
 #include "linux-low.h"
+#include "nat/aarch64-linux.h"
 #include "nat/aarch64-linux-hw-point.h"
 #include "linux-aarch32-low.h"
 #include "elf/common.h"
@@ -237,7 +238,7 @@ aarch64_init_debug_reg_state (struct aarch64_debug_reg_state *state)
 /* Return the pointer to the debug register state structure in the
    current process' arch-specific data area.  */
 
-static struct aarch64_debug_reg_state *
+struct aarch64_debug_reg_state *
 aarch64_get_debug_reg_state (pid_t pid)
 {
   struct process_info *proc = find_process_pid (pid);
@@ -482,42 +483,6 @@ aarch64_linux_new_fork (struct process_info *parent,
   *child->priv->arch_private = *parent->priv->arch_private;
 }
 
-/* Implementation of linux_target_ops method "linux_prepare_to_resume".
-
-   If the debug regs have changed, update the thread's copies.  */
-
-static void
-aarch64_linux_prepare_to_resume (struct lwp_info *lwp)
-{
-  struct arch_lwp_info *info = lwp_arch_private_info (lwp);
-
-  if (DR_HAS_CHANGED (info->dr_changed_bp)
-      || DR_HAS_CHANGED (info->dr_changed_wp))
-    {
-      ptid_t ptid = ptid_of_lwp (lwp);
-      int tid = ptid_get_lwp (ptid);
-      struct aarch64_debug_reg_state *state
-	= aarch64_get_debug_reg_state (ptid_get_pid (ptid));
-
-      if (show_debug_regs)
-	fprintf (stderr, "prepare_to_resume thread %d\n", tid);
-
-      /* Watchpoints.  */
-      if (DR_HAS_CHANGED (info->dr_changed_wp))
-	{
-	  aarch64_linux_set_debug_regs (state, tid, 1);
-	  DR_CLEAR_CHANGED (info->dr_changed_wp);
-	}
-
-      /* Breakpoints.  */
-      if (DR_HAS_CHANGED (info->dr_changed_bp))
-	{
-	  aarch64_linux_set_debug_regs (state, tid, 0);
-	  DR_CLEAR_CHANGED (info->dr_changed_bp);
-	}
-    }
-}
-
 /* Return the right target description according to the ELF file of
    current thread.  */
 
diff --git a/gdb/nat/aarch64-linux-hw-point.h b/gdb/nat/aarch64-linux-hw-point.h
index 17cc420..a27a201 100644
--- a/gdb/nat/aarch64-linux-hw-point.h
+++ b/gdb/nat/aarch64-linux-hw-point.h
@@ -180,4 +180,6 @@ void aarch64_show_debug_reg_state (struct aarch64_debug_reg_state *state,
 
 void aarch64_linux_get_debug_reg_capacity (int tid);
 
+struct aarch64_debug_reg_state *aarch64_get_debug_reg_state (pid_t pid);
+
 #endif /* AARCH64_LINUX_HW_POINT_H */
diff --git a/gdb/nat/aarch64-linux.c b/gdb/nat/aarch64-linux.c
new file mode 100644
index 0000000..7b4ead7
--- /dev/null
+++ b/gdb/nat/aarch64-linux.c
@@ -0,0 +1,64 @@
+/* Copyright (C) 2009-2015 Free Software Foundation, Inc.
+   Contributed by ARM Ltd.
+
+   This file is part of GDB.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#include "common-defs.h"
+#include "break-common.h"
+#include "nat/linux-nat.h"
+#include "nat/aarch64-linux-hw-point.h"
+#include "nat/aarch64-linux.h"
+
+/* Called when resuming a thread LWP.
+   The hardware debug registers are updated when there is any change.  */
+
+void
+aarch64_linux_prepare_to_resume (struct lwp_info *lwp)
+{
+  struct arch_lwp_info *info = lwp_arch_private_info (lwp);
+
+  /* NULL means this is the main thread still going through the shell,
+     or, no watchpoint has been set yet.  In that case, there's
+     nothing to do.  */
+  if (info == NULL)
+    return;
+
+  if (DR_HAS_CHANGED (info->dr_changed_bp)
+      || DR_HAS_CHANGED (info->dr_changed_wp))
+    {
+      ptid_t ptid = ptid_of_lwp (lwp);
+      int tid = ptid_get_lwp (ptid);
+      struct aarch64_debug_reg_state *state
+	= aarch64_get_debug_reg_state (ptid_get_pid (ptid));
+
+      if (show_debug_regs)
+	debug_printf ("prepare_to_resume thread %d\n", tid);
+
+      /* Watchpoints.  */
+      if (DR_HAS_CHANGED (info->dr_changed_wp))
+	{
+	  aarch64_linux_set_debug_regs (state, tid, 1);
+	  DR_CLEAR_CHANGED (info->dr_changed_wp);
+	}
+
+      /* Breakpoints.  */
+      if (DR_HAS_CHANGED (info->dr_changed_bp))
+	{
+	  aarch64_linux_set_debug_regs (state, tid, 0);
+	  DR_CLEAR_CHANGED (info->dr_changed_bp);
+	}
+    }
+}
diff --git a/gdb/nat/aarch64-linux.h b/gdb/nat/aarch64-linux.h
new file mode 100644
index 0000000..cf4e468
--- /dev/null
+++ b/gdb/nat/aarch64-linux.h
@@ -0,0 +1,24 @@
+/* Copyright (C) 2009-2015 Free Software Foundation, Inc.
+   Contributed by ARM Ltd.
+
+   This file is part of GDB.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#ifndef AARCH64_LINUX_H
+#define AARCH64_LINUX_H 1
+
+void aarch64_linux_prepare_to_resume (struct lwp_info *lwp);
+
+#endif /* AARCH64_LINUX_H */