Add h/w watchpoint support to x86-linux, win32-i386.

	* Makefile.in (SFILES): Add i386-low.c
	(i386_low_h): Define.
	(i386-low.o): Add dependencies.
	(linux-x86-low.o): Add i386-low.h dependency.
	(win32-i386-low.o): Ditto.
	* i386-low.c: New file.
	* i386-low.h: New file.
	* configure.srv (i[34567]86-*-cygwin*): Add i386-low.o to srv_tgtobj.
	(i[34567]86-*-linux*, i[34567]86-*-mingw*, x86_64-*-linux*): Ditto.
	* linux-low.c (linux_add_process): Initialize arch_private.
	(linux_remove_process): Free arch_private.
	(add_lwp): Initialize arch_private.
	(delete_lwp): Free arch_private.
	(linux_resume_one_lwp): Call the_low_target.prepare_to_resume if
	provided.
	* linux-low.h (process_info_private): New member arch_private.
	(lwp_info): New member arch_private.
	(linux_target_ops): New members new_process, new_thread,
	prepare_to_resume.
	(ptid_of): New macro.
	* linux-x86-low.c: Include stddef.h, i386-low.h.
	(arch_process_info): New struct.
	(arch_lwp_info): New struct.
	(x86_linux_dr_get, x86_linux_dr_set): New functions.
	(i386_dr_low_set_addr, i386_dr_low_set_control): New functions.
	(i386_dr_low_get_status): New function.
	(x86_insert_point, x86_remove_point): New functions.
	(x86_stopped_by_watchpoint): New function.
	(x86_stopped_data_address): New function.
	(x86_linux_new_process, x86_linux_new_thread): New functions.
	(x86_linux_prepare_to_resume): New function.
	(the_low_target): Add entries for insert_point, remove_point,
	stopped_by_watchpoint, stopped_data_address, new_process, new_thread,
	prepare_to_resume.
	* server.c (debug_hw_points): New global.
	(monitor_show_help): Document set debug-hw-points.
	(handle_query): Process "set debug-hw-points".
	* server.h (debug_hw_points): Declare.
	(paddress): Declare.
	* utils.c (NUMCELLS, CELLSIZE): New macros.
	(get_sell, xsnprintf, paddress): New functions.
	* win32-arm-low.c (the_low_target): Add entries for insert_point,
	remove_point, stopped_by_watchpoint, stopped_data_address.
	* win32-i386-low.c: Include i386-low.h.
	(debug_reg_state): Replaces dr.
	(i386_dr_low_set_addr, i386_dr_low_set_control): New functions.
	(i386_dr_low_get_status): New function.
	(i386_insert_point, i386_remove_point): New functions.
	(i386_stopped_by_watchpoint): New function.
	(i386_stopped_data_address): New function.
	(i386_initial_stuff): Update.
	(get_thread_context,set_thread_context,i386_thread_added): Update.
	(the_low_target): Add entries for insert_point,
	remove_point, stopped_by_watchpoint, stopped_data_address.
	* win32-low.c (win32_insert_watchpoint): New function.
	(win32_remove_watchpoint): New function.
	(win32_stopped_by_watchpoint): New function.
	(win32_stopped_data_address): New function.
	(win32_target_ops): Add entries for insert_watchpoint,
	remove_watchpoint, stopped_by_watchpoint, stopped_data_address.
	* win32-low.h (win32_target_ops): New members insert_point,
	remove_point, stopped_by_watchpoint, stopped_data_address.

1 files changed, 22 insertions, 0 deletions

diff --git a/gdb/gdbserver/linux-low.h b/gdb/gdbserver/linux-low.h
index 8369db9..603963e 100644
--- a/gdb/gdbserver/linux-low.h
+++ b/gdb/gdbserver/linux-low.h
@@ -56,8 +56,13 @@ struct process_info_private
 
   /* Connection to the libthread_db library.  */
   td_thragent_t *thread_agent;
+
+  /* Arch-specific additions.  */
+  struct arch_process_info *arch_private;
 };
 
+struct lwp_info;
+
 struct linux_target_ops
 {
   /* Architecture-specific setup.  */
@@ -97,10 +102,24 @@ struct linux_target_ops
      If DIRECTION is 1, then copy from INF to NATIVE.
      If DIRECTION is 0, copy from NATIVE to INF.  */
   int (*siginfo_fixup) (struct siginfo *native, void *inf, int direction);
+
+  /* Hook to call when a new process is created or attached to.
+     If extra per-process architecture-specific data is needed,
+     allocate it here.  */
+  struct arch_process_info * (*new_process) (void);
+
+  /* Hook to call when a new thread is detected.
+     If extra per-thread architecture-specific data is needed,
+     allocate it here.  */
+  struct arch_lwp_info * (*new_thread) (void);
+
+  /* Hook to call prior to resuming a thread.  */
+  void (*prepare_to_resume) (struct lwp_info *);
 };
 
 extern struct linux_target_ops the_low_target;
 
+#define ptid_of(proc) ((proc)->head.id)
 #define pid_of(proc) ptid_get_pid ((proc)->head.id)
 #define lwpid_of(proc) ptid_get_lwp ((proc)->head.id)
 
@@ -173,6 +192,9 @@ struct lwp_info
      THREAD_KNOWN is set.  */
   td_thrhandle_t th;
 #endif
+
+  /* Arch-specific additions.  */
+  struct arch_lwp_info *arch_private;
 };
 
 extern struct inferior_list all_lwps;