gdb/gdbserver/

	* server.h (LONGEST): New.
	(struct thread_info) <while_stepping>: New field.
	(unpack_varlen_hex, xrealloc, pulongest, plongest, phex_nz):
	Declare.
	(initialize_tracepoint, handle_tracepoint_general_set)
	(handle_tracepoint_query, tracepoint_finished_step)
	(tracepoint_was_hit, release_while_stepping_state_list):
	(current_traceframe): Declare.
	* server.c (handle_general_set): Handle tracepoint packets.
	(read_memory): New.
	(write_memory): New.
	(handle_search_memory_1): Use read_memory.
	(handle_query): Report support for conditional tracepoints, trace
	state variables, and tracepoint sources.  Handle tracepoint
	queries.
	(main): Initialize the tracepoints module.
	(process_serial_event): Handle traceframe reads/writes.

	* linux-low.c (handle_tracepoints): New.
	(linux_wait_1): Call it.
	(linux_resume_one_lwp): Handle while-stepping.
	(linux_supports_tracepoints, linux_read_pc, linux_write_pc): New.
	(linux_target_ops): Install them.
	* linux-low.h (struct linux_target_ops) <supports_tracepoints>:
	New field.
	* linux-x86-low.c (x86_supports_tracepoints): New.
	(the_low_target). Install it.

	* mem-break.h (delete_breakpoint): Declare.
	* mem-break.c (delete_breakpoint): Make external.

	* target.h (struct target_ops): Add `supports_tracepoints',
	`read_pc', and `write_pc' fields.
	(target_supports_tracepoints): Define.
	* utils.c (xrealloc, decimal2str, pulongest, plongest, thirty_two)
	(phex_nz): New.

	* regcache.h (struct regcache) <registers_owned>: New field.
	(init_register_cache, regcache_cpy): Declare.
	(regcache_read_pc, regcache_write_pc): Declare.
	(register_cache_size): Declare.
	(supply_regblock): Declare.
	* regcache.c (init_register_cache): New.
	(new_register_cache): Use it.
	(regcache_cpy): New.
	(register_cache_size): New.
	(supply_regblock): New.
	(regcache_read_pc, regcache_write_pc): New.

	* tracepoint.c: New.

	* Makefile.in (OBS): Add tracepoint.o.
	(tracepoint.o): New rule.

	gdb/
	* regformats/regdat.sh: Include server.h.  Don't include
	regcache.h.

1 files changed, 14 insertions, 0 deletions

diff --git a/gdb/gdbserver/target.h b/gdb/gdbserver/target.h
index 6109b1c..6ee5009 100644
--- a/gdb/gdbserver/target.h
+++ b/gdb/gdbserver/target.h
@@ -289,6 +289,16 @@ struct target_ops
 
   /* Target specific qSupported support.  */
   void (*process_qsupported) (const char *);
+
+  /* Return 1 if the target supports tracepoints, 0 (or leave the
+     callback NULL) otherwise.  */
+  int (*supports_tracepoints) (void);
+
+  /* Read PC from REGCACHE.  */
+  CORE_ADDR (*read_pc) (struct regcache *regcache);
+
+  /* Write PC to REGCACHE.  */
+  void (*write_pc) (struct regcache *regcache, CORE_ADDR pc);
 };
 
 extern struct target_ops *the_target;
@@ -333,6 +343,10 @@ void set_target_ops (struct target_ops *);
   if (the_target->process_qsupported) \
     the_target->process_qsupported (query)
 
+#define target_supports_tracepoints()			\
+  (the_target->supports_tracepoints			\
+   ? (*the_target->supports_tracepoints) () : 0)
+
 /* Start non-stop mode, returns 0 on success, -1 on failure.   */
 
 int start_non_stop (int nonstop);