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Author SHA1 Message Date
Yao Qi
5808517f9a gdb: 
* common/agent.c (agent_look_up_symbols): Add one parameter 'arg'.
	* common/agent.h: Update declaration.
	* inf-child.c (inf_child_use_agent): New.
	(inf_child_can_use_agent): New.
	(inf_child_target): Initialize fields `to_use_agent'
	and `to_can_use_agent'.
	* agent.c (agent_new_objfile): New.
        (_initialize_agent): Add agent_new_objfile to new_objfile
	observer.

	* linux-nat.c (linux_child_static_tracepoint_markers_by_strid):
	New.
        (linux_target_install_ops): Initialize field
	`to_static_tracepoint_markers_by_strid'.
	* remote.c (free_current_marker): Move it to ...
	* tracepoint.c (free_current_marker): ... here.  New.
	(cleanup_target_stop): New.
	* tracepoint.h: Declare free_current_marker.
	* NEWS: Add one entry about `info static-tracepoint-marker'.

gdb/gdbserver:
	* tracepoint.c (tracepoint_look_up_symbols): Update call to
	agent_look_up_symbols.

gdb/testsuite:
	* gdb.trace/strace.exp: run strace_info_marker in linux native gdb.
 2012-03-03 09:51:29 +00:00
Yao Qi
58b4daa56a gdb: 
* common/agent.c (agent_loaded_p): New.
        (agent_look_up_symbols): New global.
        * common/agent.h: Declare agent_loaded_p.

gdb/gdbserver:

        * Makefile.in (linux-low.o): Keep dependence on agent.h.
        (linux-x86-low.o): Likewise.
        * server.h: Remove in_process_agent_loaded.
        * tracepoint.c (in_process_agent_loaded): Removed.  Moved it
        common/agent.c.
        Update callers.
 2012-03-03 04:34:52 +00:00
Yao Qi
8ffcbaaf40 gdb: 
* common/agent.c (struct ipa_sym_addresses) <addr_capability>: New.
	(agent_capability_check, agent_capability_invalidate): New.
	(symbol_list): New array element.
	* common/agent.h (enum agent_capa): New.
	* target.c (target_pre_inferior): Call agent_capability_invalidate.

gdb/gdbserver:
	* tracepoint.c (gdb_agent_capability): New global.
	(in_process_agent_loaded_ust): Renamed to
	`in_process_agent_supports_ust'.
	Update callers.
	(in_process_agent_supports_ust): Call agent_capability_check.
	(clear_installed_tracepoints): Assert that agent supports
	agent.
 2012-03-03 04:04:35 +00:00
Yao Qi
2fa291aca4 gdb: 
* common/agent.c: New.
	* common/agent.h: New.
	* configure.ac: Add `sys/socket.h' and `sys/un.h' to
	AC_CHECK_HEADERS.
	* configure, configh.in: Regenerated.

gdb/gdbserver:

	* Makefile.in (OBS): Add agent.o.
	Add new rule for agent.o.
	Track dependence of tracepoint.c on agent.h.
	* tracepoint.c (run_inferior_command_1):
	(run_inferior_command): Call agent_run_command.
	(gdb_ust_connect_sync_socket): Deleted.  Move it to
	common/agent.c.
	(resume_thread, stop_thread): Likewise.
	(gdb_ust_socket_init): Renamed to ...
	(gdb_agent_socket_init): ... New.
	(gdb_ust_thread): Renamed to ...
	(gdb_agent_helper_thread): ... New.
	(gdb_ust_init): Move some code to ...
	(gdb_agent_init): ... here.  New.
	[HAVE_UST]: Call gdb_ust_init.
	(initialize_tracepoint_ftlib):  Call gdb_agent_init.
	* configure.ac: Add `sys/un.h' to AC_CHECK_HEADERS.
	* config.in, configure: Regenerated.
 2012-03-03 03:08:36 +00:00
Yao Qi
8d00225bba gdb/gdbserver: 
* tracepoint.c (do_action_at_tracepoint): Write `stop_pc' in
	debug log.
 2012-03-02 00:18:51 +00:00
Yao Qi
19560ba53e gdb/gdbserver: 
* tracepoint.c (collect_ust_data_at_tracepoint): Remove parameters
	`stop_pc' and `tpoint'.  Update caller.
 2012-03-02 00:12:47 +00:00
Luis Machado
5e1dc49674 2012-02-24 Luis Machado <lgustavo@codesourcery> 
* server.h: Include tracepoint.h.
	(agent_mem_read, agent_get_trace_state_variable_value,
	agent_set_trace_state_variable_value,
	agent_tsv_read, agent_mem_read_string, get_get_tsv_func_addr,
	get_set_tsv_func_addr): New prototypes.

	* ax.h: New include file.
	* ax.c: New source file.

	* tracepoint.c: Include ax.h.
	(gdb_agent_op, gdb_agent_op_names, gdb_agent_op_sizes,
	agent_expr, eval_result_type): Move to ax.h.
	(parse_agent_expr): Rename to ...
	(gdb_parse_agent_expr): ... this, make it non-static and move
	to ax.h.
	(unparse_agent_expr) Rename to ...
	(gdb_unparse_agent_expr): ... this, make it non-static and move
	to ax.h.
	(eval_agent_expr): Rename to ...
	(eval_tracepoint_agent_expr): ... this.
	(agent_mem_read, agent_mem_read_string, agent_tsv_read): Remove
	forward declarations.
	(add_tracepoint_action): Call gdb_parse_agent_expr (...).
	(agent_get_trace_state_variable_value): New function.
	(agent_set_trace_state_variable_value): New function.
	(cmd_qtdp): Call gdb_parse_agent_expr (...).
	(response_tracepoint): Call gdb_unparse_agent_expr (...).
	(do_action_at_tracepoint): Call eval_tracepoint_agent_expr (...).
	(condition_true_at_tracepoint): Likewise.
	(parse_agent_expr): Rename to ...
	(gdb_parse_agent_expr): ... this and move to ax.c.
	(unparse_agent_expr): Rename to ...
	(gdb_unparse_agent_expr): ... this and move to ax.c.
	(gdb_agent_op_name): Move to ax.c.
	(eval_agent_expr): Rename to ...
	(gdb_eval_agent_expr): ... this, use regcache passed as parameter
	and move to ax.c.
	(eval_tracepoint_agent_expr): New function.
	(agent_mem_read, agent_mem_read_string, agent_tsv_read): Make
	non-static.
	(current_insn_ptr, emit_error, struct bytecode_address): Move to
	ax.c.
	(emit_prologue, emit_epilogue, emit_add, emit_sub, emit_mul, emit_lsh,
	emit_rsh_signed, emit_rsh_unsigned, emit_ext, emit_log_not,
	emit_bit_and, emit_bit_or, emit_bit_xor, emit_bit_not, emit_equal,
	emit_less_signed, emit_less_unsigned, emit_ref, emit_if_goto,
	emit_goto, write_goto_address, emit_const, emit_reg, emit_pop,
	emit_stack, emit_zero_ext, emit_swap, emit_stack_adjust,
	emit_int_call_1, emit_void_call_2, emit_eq_goto, emit_ne_goto,
	emit_lt_goto, emit_ge_goto, emit_gt_goto, emit_le_goto): Move to ax.c.
	(get_get_tsv_func_addr, get_set_tsv_func_addr): New functions.
	(compile_bytecodes): Remove forward declaration.
	(is_goto_target): Move to ax.c.
	(compile_bytecodes): Move to ax.c and call
	agent_get_trace_state_variable_value (...) and
	agent_set_trace_state_variable_value (...).

	* Makefile.in: Update ax.c and IPA dependencies.
 2012-02-24 15:13:37 +00:00
Pedro Alves
277e4e5235 2012-02-24 Pedro Alves <palves@redhat.com> 
* tracepoint.c (cmd_bigqtbuffer): Rename as ...
	(cmd_bigqtbuffer_circular): ... this.  Only handle
	'QTBuffer:circular:'.
	(handle_tracepoint_general_set): Adjust.
 2012-02-24 14:46:48 +00:00
Pedro Alves
e886a1732a gdbserver/ 
2012-02-02  Pedro Alves  <palves@redhat.com>

	* tracepoint.c (cmd_qtminftpilen): Return 0 if there's no current
	inferior.

gdb/
2012-02-02  Pedro Alves  <palves@redhat.com>

	* remote.c (remote_get_min_fast_tracepoint_insn_len): Return 0 if
	the current inferior has no execution.  Make sure the current
	remote process matches gdb's current inferior.
 2012-02-02 18:04:29 +00:00
Pedro Alves
fc1ab1a0ff 2012-01-17 Pedro Alves <palves@redhat.com> 
* tracepoint.c (initialize_tracepoint): Use mmap instead of
	memalign plus mprotect to allocate the scratch buffer.
 2012-01-17 17:22:10 +00:00
Yao Qi
32d929991d * tracepoint.c [IN_PROCESS_AGENT] (debug_threads): Macro 
defined.
	[IN_PROCESS_AGENT] (debug_agent): New global variable.
 2012-01-06 05:58:29 +00:00
Yao Qi
5e0a92a986 gdb/gdbserver/ 
* tracepoint.c (cmd_qtdp): Print debug message
	for static tracepoint.
 2012-01-04 14:39:12 +00:00
Yao Qi
ae639e8c92 gdb/gdbserver/ 
* tracepoint.c (trace_vdebug): Differentiate debug message
	between gdbserver and IPA.
 2012-01-04 14:34:49 +00:00
Joel Brobecker
0b30217134 Copyright year update in most files of the GDB Project. 
gdb/ChangeLog:

        Copyright year update in most files of the GDB Project.
 2012-01-04 08:17:56 +00:00
Yao Qi
f72429c5cc gdb/gdbserver/ 
* tracepoint.c (tracepoint_was_hit): Don't collect for
	static tracepoint.
 2012-01-03 02:26:52 +00:00
Yao Qi
8206719361 gdb/gdbserver/ 
* tracepoint.c: Include sys/syscall.h.
	(gdb_ust_thread): Remove preprocessor conditional.
 2011-12-15 12:40:03 +00:00
Yao Qi
712c65750b gdb/gdbserver/ 
* tracepoint.c (gdb_ust_thread): Don't ignore return value
	of write.
 2011-12-14 07:47:15 +00:00
Yao Qi
2ece82445d 2011-12-13 Yao Qi <yao@codesourcery.com> 
* tracepoint.c (trace_buffer_alloc): Replace magic numbers with
	macros.
	(upload_fast_traceframes, upload_fast_traceframes): Likewise.
 2011-12-13 01:26:56 +00:00
Stan Shebs
242f5f1ced 2011-11-24 Stan Shebs <stan@codesourcery.com> 
* tracepoint.c (cmd_qtstatus): Use plongest instead of %llx.
 2011-11-25 04:41:15 +00:00
Stan Shebs
f196051f5e * NEWS: Mention tracepoint additions. 
* breakpoint.h (struct tracepoint): New field traceframe_usage.
	* breakpoint.c (print_one_breakpoint_location): Identify
	tracepoints as such when reporting hit counts, report
	trace buffer usage.
	(create_tracepoint_from_upload): Copy status info.
	* tracepoint.h (struct trace_status): Rename error_desc to stop_desc,
	add fields user_name, notes, start_time, stop_time.
	(struct uploaded_tp): Add fields hit_count, traceframe_usage.
	* tracepoint.c (trace_user): New global.
	(trace_notes): New global.
	(trace_stop_notes): New global.
	(start_tracing): Add argument and trace note handling.
	(stop_tracing): Ditto.
	(trace_start_command): Add notes argument.
	(trace_stop_command): Ditto.
	(trace_status_command): Report additional status info.
	(trace_status_mi): Similarly.
	(trace_save): Update, record tracepoint status.
	(set_disconnected_tracing): Call target method directly.
	(send_disconnected_tracing_value): Remove.
	(set_trace_user): New function.
	(set_trace_notes): New function.
	(set_trace_stop_notes): New function.
	(parse_trace_status): Handle additional status.
	(parse_tracepoint_status): New function.
	(parse_tracepoint_definition): Call it.
	(tfile_get_tracepoint_status): New function.
	(init_tfile_ops): Use it.
	(_initialize_tracepoint): Add new setshows.
	* target.h (struct target_ops): New methods to_get_tracepoint_status
	and to_set_trace_notes.
	(target_get_tracepoint_status): New macro.
	(target_set_trace_notes): New macro.
	* target.c (update_current_target): Add new methods.
	* remote.c (remote_get_tracepoint_status): New function.
	(remote_set_trace_notes): New function.
	(init_remote_ops): Add them.
	* mi/mi-main.c (mi_cmd_trace_start): Add argument to call.
	(mi_cmd_trace_stop): Ditto.

	* tracepoint.c (struct tracepoint): New field traceframe_usage.
	(tracing_start_time): New global.
	(tracing_stop_time): New global.
	(tracing_user_name): New global.
	(tracing_notes): New global.
	(tracing_stop_note): New global.
	(cmd_qtstart): Set traceframe_usage, start_time.
	(stop_tracing): Set stop_time.
	(cmd_qtstatus): Report additional status.
	(cmd_qtp): New function.
	(handle_tracepoint_query): Call it.
	(cmd_qtnotes): New function.
	(handle_tracepoint_general_set): Call it.
	(get_timestamp): Rename from tsv_get_timestamp.

	* gdb.texinfo (Starting and Stopping Trace Experiments): Document
	note-related options and variables.
	(Tracepoint Packets): Document packet changes.

	* gdb.trace/tstatus.exp: New.
	* gdb.trace/actions.c: Include string.h.
 2011-11-20 23:59:49 +00:00
Stan Shebs
405f8e9499 2011-11-14 Stan Shebs <stan@codesourcery.com> 
Kwok Cheung Yeung  <kcy@codesourcery.com>

	* NEWS: Document shorter fast tracepoints and qTMinFTPILen packet.
	* i386-tdep.c (i386_fast_tracepoint_valid_at): Query target for
	the minimum instruction size for fast tracepoints.
	* target.h (struct target_ops): Add new method
	to_get_min_fast_tracepoint_insn_len.
	(target_get_min_fast_tracepoint_insn_len): New.
	* target.c (update_current_target): Set up new target operation.
	* remote.c (remote_write_bytes_aux): Fix typo.
	(remote_get_min_fast_tracepoint_insn_len): New.
	(init_remote_ops): Initialize new field.

	* gdb.texinfo (Create and Delete Tracepoints): Describe what is
	needed to get shorter fast tracepoints.
	(Tracepoint Packets): Document new qTMinFTPILen packet.

	* linux-x86-low.c (small_jump_insn): New.
	(i386_install_fast_tracepoint_jump_pad): Add arguments for
	trampoline and error message, build a trampoline and issue a small
	jump instruction to it.
	(x86_install_fast_tracepoint_jump_pad): Add arguments for
	trampoline and error message.
	(x86_get_min_fast_tracepoint_insn_len): New.
	(the_low_target): Add call to x86_get_min_fast_tracepoint_insn_len.
	* linux-low.h (struct linux_target_ops): Add arguments to
	install_fast_tracepoint_jump_pad operation, add new operation.
	* linux-low.c (linux_install_fast_tracepoint_jump_pad): Add
	arguments.
	(linux_get_min_fast_tracepoint_insn_len): New function.
	(linux_target_op): Add new operation.
	* tracepoint.c (gdb_trampoline_buffer): New IPA variable.
	(gdb_trampoline_buffer_end): Ditto.
	(gdb_trampoline_buffer_error): Ditto.
	(struct ipa_sym_addresses): Add fields for new IPA variables.
	(symbol_list): Add entries for new IPA variables.
	(struct tracepoint): Add fields to hold the address range of the
	trampoline used by the tracepoint.
	(trampoline_buffer_head): New static variable.
	(trampoline_buffer_tail): Ditto.
	(claim_trampoline_space): New function.
	(have_fast_tracepoint_trampoline_buffer): New function.
	(clone_fast_tracepoint): Fill in trampoline fields of tracepoint
	structure.
	(install_fast_tracepoint): Ditto, also add error buffer argument.
	(cmd_qtminftpilen): New function.
	(handle_tracepoint_query): Add response to qTMinFTPILen packet.
	(fast_tracepoint_from_trampoline_address): New function.
	(fast_tracepoint_collecting): Handle trampoline as part of jump
	pad space.
	(set_trampoline_buffer_space): New function.
	(initialize_tracepoint): Initialize new IPA variables.
	* target.h (struct target_ops): Add arguments to
	install_fast_tracepoint_jump_pad operation, add new
	get_min_fast_tracepoint_insn_len operation.
	(target_get_min_fast_tracepoint_insn_len): New.
	(install_fast_tracepoint_jump_pad): Add arguments.
	* server.h (IPA_BUFSIZ): Define.
	* linux-i386-ipa.c: Include extra header files.
	(initialize_fast_tracepoint_trampoline_buffer): New function.
	(initialize_low_tracepoint): Call it.
	* server.h (set_trampoline_buffer_space): Declare.
	(claim_trampoline_space): Ditto.
	(have_fast_tracepoint_trampoline_buffer): Ditto.

	* gdb.trace/ftrace.c: New.
	* gdb.trace/ftrace.exp: New.
 2011-11-14 20:07:25 +00:00
Yao Qi
1e4d17643d gdb/ 
* remote.c (struct remote_state): <install_in_trace> new field.
	(PACKET_InstallInTrace): New enum value.
	(remote_install_in_trace_feature): Support InstallInTrace.
	(remote_supports_install_in_trace): Likewise.
	(remote_protocol_features): Likewise.
	(_initialize_remote): Likewise.
	(remote_can_download_tracepoint): New.
	* target.h (struct target): New field
	`to_can_download_tracepoint'.
	(target_can_download_tracepoint): New macro.
	* target.c (update_current_target): Update.
	* breakpoint.h (struct bp_location): Add comment on field
	`duplicate'.
	(should_be_inserted): Don't differentiate breakpoint and tracepoint.
	(remove_breakpoints): Don't remove tracepoints.
	(tracepoint_locations_match ): New.
	(breakpoint_locations_match): Call it.
	(disable_breakpoints_in_unloaded_shlib): Handle tracepoint.
	(download_tracepoint_locations): New.
	(update_global_location_list): Call it.
	* tracepoint.c (find_matching_tracepoint): Delete.
	(find_matching_tracepoint_location): Renamed from
	find_matching_tracepoint.  Return bp_location rather than
	tracepoint.
	(merge_uploaded_tracepoints): Set `inserted' field to 1 if
	tracepoint is found.

gdb/doc/
	* gdb.texinfo (Create and Delete Tracepoints): Describe changed
	behavior of tracepoint.
	(General Query Packets): New feature InstallInTrace.
	(Remote Configuration): Document "set remote
	install-in-trace-packet".

gdb/gdbserver/
	* server.c (handle_query): Handle InstallInTrace for qSupported.
	* tracepoint.c (add_tracepoint): Sort list.
	(install_tracepoint, download_tracepoint): New.
	(cmd_qtdp): Call them to install and download tracepoints.
	(sort_tracepoints): Removed.
	(cmd_qtstart): Update.

gdb/testsuite/
	* gdb.trace/change-loc-1.c: New.
	* gdb.trace/change-loc-2.c: New.
	* gdb.trace/change-loc.c: New.
	* gdb.trace/change-loc.exp:  New.
	* gdb.trace/change-loc.h:  New.
	* gdb.trace/trace-break.c (marker): Define new symbol.
	* gdb.trace/trace-break.exp (break_trace_same_addr_5):
        New.
	(break_trace_same_addr_6): New.
 2011-11-14 15:18:54 +00:00
Yao Qi
5c73ff4ec2 * mem-break.c (inc_ref_fast_tracepoint_jump): New. 
* mem-break.h: Declare.
	* tracepoint.c (cmd_qtstart): Move some code to ...
	(clone_fast_tracepoint, install_fast_tracepoint): ... here.
	New.
	(download_tracepoints): Move some code to ...
	(download_tracepoint_1): ... here.  New.
 2011-11-14 14:38:41 +00:00
Yao Qi
a59306a3db gdb/gdbserver: 
2011-11-05  Yao Qi  <yao@codesourcery.com>

	* tracepoint.c (gdb_collect): Loop over tracepoints of same
	address as TPOINT's.

gdb/testsuite:

2011-11-05  Yao Qi  <yao@codesourcery.com>

	* gdb.trace/trace-break.exp: Add test on setting two
	fast tracepoints at the same address.
 2011-11-05 13:16:23 +00:00
Stan Shebs
3065dfb6b4 2011-11-02 Stan Shebs <stan@codesourcery.com> 
String collection for tracepoints.
	* NEWS: Mention string collection.
	* common/ax.def (tracenz): New bytecode.
	* ax-gdb.h (trace_string_kludge): Declare.
	* ax-gdb.c: Include valprint.h and c-lang.h.
	(trace_string_kludge): New global.
	(gen_traced_pop): Add string case.
	(agent_command): Add string case.
	* tracepoint.h (decode_agent_options): Declare.
	* tracepoint.c: Include cli-utils.h.
	(decode_agent_options): New function.
	(validate_actionline): Call it.
	(encode_actions_1): Ditto.
	* target.h (struct target_ops): New method to_supports_string_tracing.
	(target_supports_string_tracing): New macro.
	* target.c (update_current_target): Add to_supports_string_tracing.
	* remote.c (struct remote_state): New field string_tracing.
	(remote_string_tracing_feature): New function.
	(remote_protocol_features): New feature tracenz.
	(remote_supports_string_tracing): New function.
	(init_remote_ops): Set to_supports_string_tracing.

	* tracepoint.c (agent_mem_read_string): New function.
	(eval_agent_expr): Call it for tracenz.
	* server.c (handle_query): Report support for tracenz.

	* gdb.texinfo (Tracepoint Action Lists): Document collect/s.
	(General Query Packets): Describe tracenz feature.
	* agentexpr.texi (Bytecode Descriptions): Describe tracenz.

	* gdb.trace/collection.c: Add code using strings.
	* gdb.trace/collection.exp: Add tests of string collection.
 2011-11-02 23:44:21 +00:00
Yao Qi
fd0d8c7ca3 gdb/gdbserver/ 
* tracepoint.c (cmd_qtstart): Remove unused local variables.
 2011-11-02 04:34:22 +00:00
Stan Shebs
6b9801d456 * server.h (struct emit_ops): Add compare-goto fields. 
* tracepoint.c (gdb_agent_op_sizes): New table.
	(emit_eq_goto): New function.
	(emit_ne_goto): New function.
	(emit_lt_goto): New function.
	(emit_le_goto): New function.
	(emit_gt_goto): New function.
	(emit_ge_goto): New function.
	(is_goto_target): New function.
	(compile_bytecodes): Recognize special cases of compare-goto
	combinations and call specialized emitters for them.
	* linux-x86-low.c (amd64_emit_eq_goto): New function.
	(amd64_emit_ne_goto): New function.
	(amd64_emit_lt_goto): New function.
	(amd64_emit_le_goto): New function.
	(amd64_emit_gt_goto): New function.
	(amd64_emit_ge_goto): New function.
	(amd64_emit_ops): Add the new functions.
	(i386_emit_eq_goto): New function.
	(i386_emit_ne_goto): New function.
	(i386_emit_lt_goto): New function.
	(i386_emit_le_goto): New function.
	(i386_emit_gt_goto): New function.
	(i386_emit_ge_goto): New function.
	(i386_emit_ops): Add the new functions.
 2011-09-15 22:54:13 +00:00
Pedro Alves
2275a1a744 2011-07-20 Pedro Alves <pedro@codesourcery.com> 
* tracepoint.c (tracepoint_look_up_symbols): Return upon the first
	symbol error.
 2011-07-20 11:01:21 +00:00
Kwok Yeung
d248b706a3 Add support for enabling and disabling tracepoints while a trace 
experiment is still running.

gdb/
	* breakpoint.c (disable_breakpoint): Disable all locations
	associated with a tracepoint on target if a trace experiment is
	running.
	(disable_command): Disable a specific tracepoint location on target if
	a trace	experiment is running.
	(do_enable_breakpoint): Enable all locations associated with a
	tracepoint on target if a trace experiment is running.
	(enable_command) Enable a specific tracepoint location on target if a
	trace experiment is running.
	* target.c (update_current_target): Add INHERIT and de_fault clauses for
	to_supports_enable_disable_tracepoint, to_enable_tracepoint and
	to_disable_tracepoint.
	* target.h: Add declaration of struct bp_location.
	(struct target_ops): Add new functions
	to_supports_enable_disable_tracepoint, to_enable_tracepoint and
	to_disable_tracepoint to target operations.
	(target_supports_enable_disable_tracepoint): New macro.
	(target_enable_tracepoint): New macro.
	(target_disable_tracepoint): New macro.
	* remote.c (struct remote_state): Add new field.
	(remote_enable_disable_tracepoint_feature): New.
	(remote_protocol_features): Add new entry.
	(remote_supports_enable_disable_tracepoint): New.
	(remote_enable_tracepoint): New.
	(remote_disable_tracepoint): New.
	(init_remote_ops): Add remote_enable_tracepoint,
	remote_disable_tracepoint and remote_supports_enable_disable_tracepoint
	to remote operations.
	* tracepoint.c (start_tracing): Allow tracing to start without any
	tracepoints enabled with just a warning if they can be re-enabled
	later.
	* NEWS: Add news item for the new behaviour of the enable and disable
	GDB commands when applied to tracepoints.
	Add news items for the new remote packets QTEnable and QTDisable.

gdb/doc/
	* gdb.texinfo: Document change in the behaviour of the enable and
	disable GDB commands when applied to tracepoints.
	Document the EnableDisableTracepoints remote stub feature.
	Document QTEnable and QTDisable in the list of tracepoint packets.

gdb/gdbserver/
	* server.c (handle_query): Add EnableDisableTracepoints to the list
	of supported features.
	* tracepoint.c (clear_installed_tracepoints): Uninstall	disabled
	tracepoints.
	(cmd_qtenable_disable): New.
	(cmd_qtstart): Install tracepoints even if disabled.
	(handle_tracepoint_general_set): Add call to cmd_qtenable_disable on
	receiving a QTEnable or QTDisable packet.
	(gdb_collect): Skip data collection if fast tracepoint is disabled.
	(ust_marker_to_static_tracepoint): Do not ignore disabled static
	tracepoints.
	(gdb_probe): Skip data collection if static tracepoint is disabled.
 2011-05-12 12:09:17 +00:00
Michael Snyder
f8f67713c0 2011-02-28 Michael Snyder <msnyder@vmware.com> 
* tracepoint.c (cmd_qtv): Discard unused value 'packet'.
	(cmd_qtframe): Ditto.
	(cmd_qtbuffer): Ditto.
	(cmd_bigqtbuffer): Ditto.
 2011-03-10 20:21:14 +00:00
Michael Snyder
4f269b12df 2011-02-27 Michael Snyder <msnyder@vmware.com> 
* gdbserver/tracepoint.c (tracepoint_finish_step): Fix
	loop variable.
 2011-03-10 20:18:42 +00:00
Michael Snyder
61adf46486 2011-03-09 Michael Snyder <msnyder@vmware.com> 
* gdbserver/tracepoint.c: Fix small comment typo.
 2011-03-09 15:59:12 +00:00
Joel Brobecker
633ff500c5 Revert the following patch (printf tracepoint op) (not approved yet) 
2011-02-21  Hui Zhu  <teawater@gmail.com>
        * tracepoint.c (tp_printf): New function.
        (eval_agent_expr): Handle gdb_agent_op_printf.
 2011-02-24 07:38:42 +00:00
Hui Zhu
f9c6ff7236 2011-02-21 Hui Zhu <teawater@gmail.com> 
* tracepoint.c (tp_printf): New function.
	(eval_agent_expr): Handle gdb_agent_op_printf.
 2011-02-21 08:39:14 +00:00
Tom Tromey
94d5e490f0 gdb 
* common/ax.def: New file.
	* ax.h (enum agent_op): Use ax.def.
	* ax-general.c (aop_map): Use ax.def.
gdbserver
	* Makefile.in (tracepoint-ipa.o): Depend on ax.def.
	(tracepoint.o): Likewise.
	* tracepoint.c (enum gdb_agent_op): Use ax.def.
	(gdb_agent_op_names): Likewise.
 2011-02-18 21:12:07 +00:00
Tom Tromey
c7f96d2b95 gdb 
* ax-general.c (aop_map): Add pick and rot.
	* dwarf2loc.c (compile_dwarf_to_ax) <DW_OP_over>: Reimplement.
	<DW_OP_rot>: Implement.
	* ax.h (enum agent_op) <aop_pick, aop_rot>: New constants.
	(ax_pick): Declare.
	* ax-general.c (ax_pick): New function.
doc
	* agentexpr.texi (Bytecode Descriptions): Document pick and rot.
gdbserver
	* tracepoint.c (enum gdb_agent_op) <gdb_agent_op_pick,
	gdb_agent_op_rot>: New constants.
	(gdb_agent_op_names): Add pick and roll.
	(eval_agent_expr) <gdb_agent_op_pick, gdb_agent_op_rot>: New
	cases.
 2011-02-18 20:55:45 +00:00
Pedro Alves
b3b9301ef4 gdb/ 
* target.h (struct traceframe_info): Forward declare.
	(enum target_object): Add TARGET_OBJECT_TRACEFRAME_INFO.
	(struct target_ops) <to_traceframe_info>: New field.
	(target_traceframe_info): New.
	* target.c (update_current_target): Inherit and default
	to_traceframe_info.
	* remote.c (PACKET_qXfer_traceframe_info): New.
	(remote_protocol_features): Register qXfer:traceframe-info:read.
	(remote_xfer_partial): Handle TARGET_OBJECT_TRACEFRAME_INFO.
	(remote_traceframe_info): New.
	(init_remote_ops): Install it.
	(_initialize_remote): Install "set/show remote traceframe-info"
	commands.
	* tracepoint.h (parse_traceframe_info): Declare.
	* tracepoint.c (struct mem_range): New.
	(mem_range_s): New typedef.
	(struct traceframe_info): New.
	(traceframe_info): New global.
	(free_traceframe_info): New function.
	(clear_traceframe_info): New function.
	(start_tracing, tfind_1, set_traceframe_number): Clear traceframe
	info.
	(build_traceframe_info): New function.
	(tfile_traceframe_info): New function.
	(init_tfile_ops): Install tfile_traceframe_info.
	(traceframe_info_start_memory, free_result): New functions.
	(memory_attributes, traceframe_info_elements): New globals.
	(parse_traceframe_info, get_traceframe_info): New functions.
	* features/traceframe-info.dtd: New file.
	* Makefile.in (XMLFILES): Add traceframe-info.dtd.

	gdb/gdbserver/
	* server.c (handle_qxfer_traceframe_info): New.
	(qxfer_packets): Register "traceframe-info".
	(handle_query): Report support for qXfer:traceframe-info:read+.
	* tracepoint.c (match_blocktype): New.
	(traceframe_find_block_type): Rename to ...
	(traceframe_walk_blocks): ... this.  Add callback filter argument,
	and use it.
	(traceframe_find_block_type): New, reimplemented on top of
	traceframe_walk_blocks.
	(build_traceframe_info_xml): New.
	(traceframe_read_info): New.
	* server.h (traceframe_read_info): Declare.

	gdb/doc/
	* gdb.texinfo (Remote Configuration): Mention set/show remote
	traceframe-info.
	(Tools/Packages Optional for Building GDB): Mention that expat is
	used for traceframe info.
	(Remote Protocol) <Menu>: Add "Traceframe Info Format".
	(General Query Packets) <qSupported>: Describe the
	qXfer:traceframe-info:read feature.
	(qXfer::read): Describe qXfer:traceframe-info:read.
	(Traceframe Info Format): New section.
 2011-02-14 11:13:12 +00:00
Pedro Alves
764880b7ed gdb/server/ 
* server.c (gdb_read_memory): Change return semantics to allow
	partial transfers.
	(handle_search_memory_1): Adjust.
	(process_serial_event) <'m' packet>: Handle partial transfers.
	* tracepoint.c (traceframe_read_mem): Handle partial transfers.

	gdb/testsuite/
	* gdb.trace/collection.c (global_pieces): New.
	* gdb.trace/collection.exp (gdb_collect_global_in_pieces_test):
	New procedure.
	(gdb_trace_collection_test): Call it.
 2011-02-07 12:14:14 +00:00
Pedro Alves
1c79eb8a7d gdb/gdbserver/ 
* regcache.c (init_register_cache): Initialize
	regcache->register_status.
	(free_register_cache): Release regcache->register_status.
	(regcache_cpy): Copy register_status.
	(registers_to_string): Print 'x's for unavailable registers.
	(supply_register): Mark the register's status valid or
	unavailable, depending on whether a buffer was passed in or not.
	(supply_register_zeroed): New.
	(supply_regblock): Mark the registers' status valid or
	unavailable, depending on whether a buffer was passed in or not.
	* regcache.h (REG_UNAVAILABLE, REG_VALID): New defines.
	(struct regcache): New `register_status' field.
	(supply_register_zeroed): Declare.
	* i387-fp.c (i387_xsave_to_cache): Zero out registers using
	supply_register_zeroed, rather than passing a NULL buffer to
	supply_register.
	* tracepoint.c (fetch_traceframe_registers): Update comment.
 2011-01-28 13:36:32 +00:00
Michael Snyder
493e2a69a4 2011-01-05 Michael Snyder <msnyder@msnyder-server.eng.vmware.com> 
* gdbreplay.c: Shorten lines of >= 80 columns.
	* linux-low.c: Ditto.
	* linux-ppc-low.c: Ditto.
	* linux-s390-low.c: Ditto.
	* linux-sparc-low.c: Ditto.
	* linux-x86-low.c: Ditto.
	* linux-xtensa-low.c: Ditto.
	* mem-break.c: Ditto.
	* nto-low.c: Ditto.
	* regcache.h: Ditto.
	* remote-utils.c: Ditto.
	* server.c: Ditto.
	* server.h: Ditto.
	* thread-db.c: Ditto.
	* tracepoint.c: Ditto.
	* utils.c: Ditto.
	* win32-low.h: Ditto.
 2011-01-06 00:14:09 +00:00
Joel Brobecker
7b6bb8daac run copyright.sh for 2011. 2011-01-01 15:34:07 +00:00
Yao Qi
32fcada322 2010-09-06 Yao Qi <yao@codesourcery.com> 
* linux-low.c (linux_kill): Remove unused variable.
	(linux_stabilize_threads): Likewise.
	* server.c (start_inferior): Likewise.
	(queue_stop_reply_callback): Likewise.
	* tracepoint.c (do_action_at_tracepoint): Likewise.
 2010-09-06 15:15:50 +00:00
gdbadmin
a778ab81e8 [gdbserver] Move malloc.h include to server.h. 
This patch moves all includes of malloc.h, which were introduced
purely to get access to alloca's declaration, to server.h, next
to the include of alloca.h.

There is one exception: gdbreplay.c, which does not include server.h.
In this case, the include of alloca.h was simply moved up a bit, next
to the include of malloc.h.

gdb/gdbserver/ChangeLog:

        * gdbreplay.c: Move include of alloca.h up, next to include of
        malloc.h.
        * server.h: Add include of malloc.h.
        * mem-break.c: Remove include of malloc.h.
        * server.c, tracepoint.c, utils.c, win32-low.c: Likewise.
 2010-09-01 17:29:32 +00:00
gdbadmin
6cebaf6e1a use xsnprintf instead of snprintf. 
snprintf is not available on LynxOS, so I changed the calls to snprintf
to calls to xsnprintf, which should be strictly equivalent.

gdb/gdbserver/ChangeLog:

        * utils.c (xsnprintf): Make non-static.
        * server.h: Add xsnprintf declaration.
        * linux-low.c, nto-low.c, target.c, thread-db.c, tracepoint.c:
        replace calls to snprintf by calls to xsnprintf throughout.
 2010-09-01 01:53:43 +00:00
Pedro Alves
0fb4aa4bfc Static tracepoints support, and UST integration. 
gdb/gdbserver/
	* configure.ac: Handle --with-ust.  substitute ustlibs and ustinc.
	* mem-break.c (uninsert_all_breakpoints)
	(reinsert_all_breakpoints): New.
	* mem-break.h (reinsert_all_breakpoints, uninsert_all_breakpoints):
	* tracepoint.c (ust_loaded, helper_thread_id, cmd_buf): New.
	(gdb_agent_ust_loaded, helper_thread_id)
	(gdb_agent_helper_thread_id): New macros.
	(struct ipa_sym_addresses): Add addr_ust_loaded,
	addr_helper_thread_id, addr_cmd_buf.
	(symbol_list): Add ust_loaded, helper_thread_id, cmd_buf.
	(in_process_agent_loaded_ust): New.
	(write_e_ust_not_loaded): New.
	(maybe_write_ipa_ust_not_loaded): New.
	(struct collect_static_trace_data_action): New.
	(enum tracepoint_type) <static_tracepoint>: New.
	(struct tracepoint) <handle>: Mention static tracepoints.
	(struct static_tracepoint_ctx): New.
	(CMD_BUF_SIZE): New.
	(add_tracepoint_action): Handle static tracepoint actions.
	(unprobe_marker_at): New.
	(clear_installed_tracepoints): Handle static tracepoints.
	(cmd_qtdp): Handle static tracepoints.
	(probe_marker_at): New.
	(cmd_qtstart): Handle static tracepoints.
	(response_tracepoint): Handle static tracepoints.
	(cmd_qtfstm, cmd_qtsstm, cmd_qtstmat): New.
	(handle_tracepoint_query): Handle qTfSTM, qTsSTM and qTSTMat.
	(get_context_regcache): Handle static tracepoints.
	(do_action_at_tracepoint): Handle static tracepoint actions.
	(traceframe_find_block_type): Handle static trace data blocks.
	(traceframe_read_sdata): New.
	(download_tracepoints): Download static tracepoint actions.
	[HAVE_UST] Include ust/ust.h, dlfcn.h, sys/socket.h, and sys/un.h.
	(GDB_PROBE_NAME): New.
	(ust_ops): New.
	(GET_UST_SYM): New.
	(USTF): New.
	(dlsym_ust): New.
	(ust_marker_to_static_tracepoint): New.
	(gdb_probe): New.
	(collect_ust_data_at_tracepoint): New.
	(gdb_ust_probe): New.
	(UNIX_PATH_MAX, SOCK_DIR): New.
	(gdb_ust_connect_sync_socket): New.
	(resume_thread, stop_thread): New.
	(run_inferior_command): New.
	(init_named_socket): New.
	(gdb_ust_socket_init): New.
	(cstr_to_hexstr): New.
	(next_st): New.
	(first_marker, next_marker): New.
	(response_ust_marker): New.
	(cmd_qtfstm, cmd_qtsstm): New.
	(unprobe_marker_at, probe_marker_at): New.
	(cmd_qtstmat, gdb_ust_thread): New.
	(gdb_ust_init): New.
	(initialize_tracepoint_ftlib): Call gdb_ust_init.
	* linux-amd64-ipa.c [HAVE_UST]: Include ust/processor.h
	(ST_REGENTRY): New.
	(x86_64_st_collect_regmap): New.
	(X86_64_NUM_ST_COLLECT_GREGS): New.
	(AMD64_RIP_REGNUM): New.
	(supply_static_tracepoint_registers): New.
	* linux-i386-ipa.c [HAVE_UST]: Include ust/processor.h
	(ST_REGENTRY): New.
	(i386_st_collect_regmap): New.
	(i386_NUM_ST_COLLECT_GREGS): New.
	(supply_static_tracepoint_registers): New.
	* server.c (handle_query): Handle qXfer:statictrace:read.
	<qSupported>: Report support for StaticTracepoints, and
	qXfer:statictrace:read features.
	* server.h (traceframe_read_sdata)
	(supply_static_tracepoint_registers): Declare.
	* remote-utils.c (convert_int_to_ascii, hexchars, ishex, tohex)
	(unpack_varlen_hex): Include in IPA build.
	* Makefile.in (ustlibs, ustinc): New.
	(IPA_OBJS): Add remote-utils-ipa.o.
	($(IPA_LIB)): Link -ldl and -lpthread.
	(UST_CFLAGS): New.
	(IPAGENT_CFLAGS): Add UST_CFLAGS.
	* config.in, configure: Regenerate.

	gdb/
	* NEWS: Mention new support for static tracepoints.
	(New packets): Mention qTfSTM, qTsSTM, qTSTMat and
	qXfer:statictrace:read.
	(New features in the GDB remote stub, GDBserver): Mention static
	tracepoints support using an UST based backend.
	(New commands): Mention "info static-tracepoint-markers" and
	"strace".
	* breakpoint.c (is_marker_spec): New.
	(is_tracepoint): Handle static tracepoints.
	(validate_commands_for_breakpoint): Static tracepoints can't do
	while-stepping.
	(static_tracepoints_here): New.
	(bpstat_what): Handle static tracepoints.
	(print_one_breakpoint_location, allocate_bp_location, mention):
	Ditto.
	(create_breakpoint_sal): Ditto.
	(decode_static_tracepoint_spec): New.
	(create_breakpoint): Replace `hardwareflag', and `traceflag' with
	`type_wanted'.  Adjust.  Handle static tracepoint marker
	locations.
	(break_command_1): Adjust.
	(update_static_tracepoint): New.
	(update_breakpoint_locations): Handle static tracepoints.
	(breakpoint_re_set_one): Handle static tracepoint marker
	locations.
	(disable_command, enable_command): Handle static tracepoints.
	(trace_command, ftrace_command): Adjust.
	(strace_command): New.
	(create_tracepoint_from_upload): Adjust.
	(save_breakpoints): Handle static tracepoints.
	(_initialize_breakpoint): Install the "strace" command.
	* breakpoint.h (enum bptype): New bp_static_tracepoint type.
	(struct breakpoint): New fields static_trace_marker_id and
	static_trace_marker_id_idx.
	(breakpoints_here_p): Declare.
	(create_breakpoint): Adjust.
	(static_tracepoints_here): Declare.
	* remote.c (struct remote_state) <static_tracepoints>: New field.
	(PACKET_qXfer_statictrace_read, PACKET_StaticTracepoints): New.
	(remote_static_tracepoint_marker_at): New.
	(remote_static_tracepoint_markers_by_strid): New.
	(remote_static_tracepoint_feature): New.
	(remote_disconnected_tracing_feature): Handle "StaticTracepoints".
	(remote_xfer_partial): Handle TARGET_OBJECT_STATIC_TRACE_DATA.
	(remote_supports_static_tracepoints): New.
	(remote_download_tracepoint): Download static tracepoints.
	(init_remote_ops): Install remote_static_tracepoint_marker_at and
	remote_static_tracepoint_markers_by_strid.
	(_initialize_remote): Install set|show remote static-tracepoints,
	and set|show remote read-sdata-object commands.
	* target.c (update_current_target): Inherit and default
	to_static_tracepoint_marker_at, and
	to_static_tracepoint_markers_by_strid.
	* target.h (static_tracepoint_marker): Forward declare.
	(enum target_object): New object TARGET_OBJECT_STATIC_TRACE_DATA.
	(static_tracepoint_marker_p): New typedef.
	(DEF_VEC_P(static_tracepoint_marker_p)): New VEC type.
	(struct target_ops): New fields to_static_tracepoint_marker_at and
	to_static_tracepoint_markers_by_strid.
	(target_static_tracepoint_marker_at)
	(target_static_tracepoint_markers_by_strid): New.
	* tracepoint.c: Include source.h.
	(validate_actionline): Handle $_sdata.
	(struct collection_list): New field strace_data.
	(add_static_trace_data): New.
	(clear_collection_list): Clear strace_data.
	(stringify_collection_list): Account for a possible static trace
	data collection.
	(encode_actions_1): Encode an $_sdata collection.
	(parse_tracepoint_definition): Handle static tracepoints.
	(parse_static_tracepoint_marker_definition): New.
	(release_static_tracepoint_marker): New.
	(print_one_static_tracepoint_marker): New.
	(info_static_tracepoint_markers_command): New.
	(sdata_make_value): New.
	(_initialize_tracepoint): Create the $_sdata convenience variable.
	Add the "info static-tracepoint-markers" command.
	Mention $_sdata in the "collect" command's help output.
	* tracepoint.h (struct static_tracepoint_marker): New.
	(parse_static_tracepoint_marker_definition)
	(release_static_tracepoint_marker): Declare.
	* mi/mi-cmd-break.c (mi_cmd_break_insert): Adjust.
	* python/py-breakpoint.c (bppy_new): Adjust.

	doc/
	* gdb.texinfo (Convenience Variables): Document $_sdata.
	(Commands to Set Tracepoints): Describe static tracepoints.  Add
	`Listing Static Tracepoint Markers' menu entry.  Document
	"strace".
	(Tracepoint Action Lists): Document collecting $_sdata.
	(Listing Static Tracepoint Markers): New subsection.
	(Tracepoints support in gdbserver): Mention static tracepoints.
	(remote packets, enabling and disabling): Mention
	read-sdata-object.
	(General Query Packets) <qSupported>: Document qXfer:sdata:read
	and StaticTracepoint.
	Mention qTfSTM, qTsSTM and qTSTMat as tracepoint packets.
	Document qXfer:sdata:read.
	(Tracepoint packets): Document qTfSTM, qTsSTM and qTSTMat.
 2010-07-01 10:36:12 +00:00
Pedro Alves
c6beb2cba6 * tracepoint.c (condition_true_at_tracepoint): Don't run compiled 
conditions in gdbserver.
 2010-06-20 22:18:48 +00:00
Pedro Alves
4e29fb547e * linux-x86-low.c (amd64_emit_const, amd64_emit_void_call_2) 
(i386_emit_const, i386_emit_void_call_2): Replace int64_t uses with
	LONGEST uses.
	* server.h (struct emit_ops): Replace int64_t uses with LONGEST
	uses.
	* tracepoint.c (emit_const, emit_void_call_2): Replace int64_t
	uses with LONGEST uses.
 2010-06-15 10:44:48 +00:00
Pedro Alves
6a271cae85 gdb/ 
2010-06-14  Pedro Alves  <pedro@codesourcery.com>

	* NEWS: Mention GDBserver's JIT compilation of tracepoint
	bytecode.

gdb/gdbserver/
2010-06-14  Stan Shebs  <stan@codesourcery.com>
	    Pedro Alves  <pedro@codesourcery.com>

	Bytecode compiler.

	* linux-x86-low.c: Include limits.h.
	(add_insns): New.
	(always_true): New.
	(EMIT_ASM): New.
	(EMIT_ASM32): New.
	(amd64_emit_prologue, amd64_emit_epilogue, amd64_emit_add)
	(amd64_emit_sub, amd64_emit_mul, amd64_emit_lsh)
	(amd64_emit_rsh_signed, amd64_emit_rsh_unsigned, amd64_emit_ext,
	(amd64_emit_log_not, amd64_emit_bit_and, amd64_emit_bit_or)
	(amd64_emit_bit_xor, amd64_emit_bit_not, amd64_emit_equal,
	(amd64_emit_less_signed, amd64_emit_less_unsigned, amd64_emit_ref,
	(amd64_emit_if_goto, amd64_emit_goto, amd64_write_goto_address)
	(amd64_emit_const, amd64_emit_call, amd64_emit_reg)
	(amd64_emit_pop, amd64_emit_stack_flush, amd64_emit_zero_ext)
	(amd64_emit_swap, amd64_emit_stack_adjust, amd64_emit_int_call_1)
	(amd64_emit_void_call_2): New.
	(amd64_emit_ops): New.
	(i386_emit_prologue, i386_emit_epilogue, i386_emit_add)
	(i386_emit_sub,i386_emit_mul, i386_emit_lsh, i386_emit_rsh_signed)
	(i386_emit_rsh_unsigned, i386_emit_ext, i386_emit_log_not)
	(i386_emit_bit_and, i386_emit_bit_or, i386_emit_bit_xor)
	(i386_emit_bit_not, i386_emit_equal, i386_emit_less_signed)
	(i386_emit_less_unsigned, i386_emit_ref, i386_emit_if_goto)
	(i386_emit_goto, i386_write_goto_address, i386_emit_const)
	(i386_emit_call, i386_emit_reg, i386_emit_pop)
	(i386_emit_stack_flush, i386_emit_zero_ext, i386_emit_swap)
	(i386_emit_stack_adjust, i386_emit_int_call_1)
	(i386_emit_void_call_2): New.
	(i386_emit_ops): New.
	(x86_emit_ops): New.
	(the_low_target): Install x86_emit_ops.
	* server.h (struct emit_ops): New.
	(get_raw_reg_func_addr): Declare.
	(current_insn_ptr, emit_error): Declare.
	* tracepoint.c (get_raw_reg, get_trace_state_variable_value)
	(set_trace_state_variable_value): New defines.
	(struct ipa_sym_addresses): New fields addr_get_raw_reg,
	addr_get_trace_state_variable_value and
	addr_set_trace_state_variable_value.
	(symbol_list): New fields for get_raw_reg,
	get_trace_state_variable_value and set_trace_state_variable_value.
	(condfn): New typedef.
	(struct tracepoint): New field `compiled_cond'.
	(do_action_at_tracepoint): Clear compiled_cond.
	(get_trace_state_variable_value, set_trace_state_variable_value):
	Export in the IPA.
	(condition_true_at_tracepoint): If there's a compiled condition,
	run that.
	(current_insn_ptr, emit_error): New globals.
	(struct bytecode_address): New.
	(get_raw_reg_func_addr): New.
	(emit_prologue, emit_epilogue, emit_add, emit_sub, emit_mul)
	(emit_lsh, emit_rsh_signed, emit_rsh_unsigned, emit_ext)
	(emit_log_not, emit_bit_and, emit_bit_or, emit_bit_xor)
	(emit_bit_not, emit_equal, emit_less_signed, emit_less_unsigned)
	(emit_ref, emit_if_goto, emit_goto, write_goto_address, emit_const)
	(emit_reg, emit_pop, emit_stack_flush, emit_zero_ext, emit_swap)
	(emit_stack_adjust, emit_int_call_1, emit_void_call_2): New.
	(compile_tracepoint_condition, compile_bytecodes): New.
	* target.h (emit_ops): Forward declare.
	(struct target_ops): New field emit_ops.
	(target_emit_ops): New.
	* linux-amd64-ipa.c (gdb_agent_get_raw_reg): New.
	* linux-i386-ipa.c (gdb_agent_get_raw_reg): New.
	* linux-low.c (linux_emit_ops): New.
	(linux_target_ops): Install it.
	* linux-low.h (struct linux_target_ops): New field emit_ops.
 2010-06-14 22:16:09 +00:00
Pedro Alves
fa593d66d5 gdb/gdbserver/ 
2010-06-01  Pedro Alves  <pedro@codesourcery.com>
	    Stan Shebs  <stan@codesourcery.com>

	* Makefile.in (IPA_DEPFILES, extra_libraries): New.
	(all): Depend on $(extra_libraries).
	(install-only): Install the IPA.
	(IPA_OBJS, IPA_LIB): New.
	(clean): Remove the IPA lib.
	(IPAGENT_CFLAGS): New.
	(tracepoint-ipa.o, utils-ipa.o, remote-utils-ipa.o)
	(regcache-ipa.o, i386-linux-ipa.o, linux-i386-ipa.o)
	(linux-amd64-ipa.o, amd64-linux-ipa.o): New rules.
	* linux-amd64-ipa.c, linux-i386-ipa.c: New files.
	* configure.ac: Check for atomic builtins support in the compiler.
	(IPA_DEPFILES, extra_libraries): Define.
	* configure.srv (ipa_obj): Add description.
	(ipa_i386_linux_regobj, ipa_amd64_linux_regobj): Define.
	(i[34567]86-*-linux*): Set ipa_obj.
	(x86_64-*-linux*): Set ipa_obj.
	* linux-low.c (stabilizing_threads): New.
	(supports_fast_tracepoints): New.
	(linux_detach): Stabilize threads before detaching.
	(handle_tracepoints): Handle internal tracing breakpoints.  Assert
	the lwp is either not stabilizing, or is moving out of a jump pad.
	(linux_fast_tracepoint_collecting): New.
	(maybe_move_out_of_jump_pad): New.
	(enqueue_one_deferred_signal): New.
	(dequeue_one_deferred_signal): New.
	(linux_wait_for_event_1): If moving out of a jump pad, defer
	pending signals to later.
	(linux_stabilize_threads): New.
	(linux_wait_1): Check if threads need moving out of jump pads, and
	do it if so.
	(stuck_in_jump_pad_callback): New.
	(move_out_of_jump_pad_callback): New.
	(lwp_running): New.
	(linux_resume_one_lwp): Handle moving out of jump pads.
	(linux_set_resume_request): Dequeue deferred signals.
	(need_step_over_p): Also step over fast tracepoint jumps.
	(start_step_over): Also uninsert fast tracepoint jumps.
	(finish_step_over): Also reinsert fast tracepoint jumps.
	(linux_install_fast_tracepoint_jump): New.
	(linux_target_ops): Install linux_stabilize_threads and
	linux_install_fast_tracepoint_jump_pad.
	* linux-low.h (linux_target_ops) <get_thread_area,
	install_fast_tracepoint_jump_pad>: New fields.
	(struct lwp_info) <collecting_fast_tracepoint,
	pending_signals_to_report, exit_jump_pad_bkpt>: New fields.
	(linux_get_thread_area): Declare.
	* linux-x86-low.c (jump_insn): New.
	(x86_get_thread_area): New.
	(append_insns): New.
	(push_opcode): New.
	(amd64_install_fast_tracepoint_jump_pad): New.
	(i386_install_fast_tracepoint_jump_pad): New.
	(x86_install_fast_tracepoint_jump_pad): New.
	(the_low_target): Install x86_get_thread_area and
	x86_install_fast_tracepoint_jump_pad.
	* mem-break.c (set_raw_breakpoint_at): Use read_inferior_memory.
	(struct fast_tracepoint_jump): New.
	(fast_tracepoint_jump_insn): New.
	(fast_tracepoint_jump_shadow): New.
	(find_fast_tracepoint_jump_at): New.
	(fast_tracepoint_jump_here): New.
	(delete_fast_tracepoint_jump): New.
	(set_fast_tracepoint_jump): New.
	(uninsert_fast_tracepoint_jumps_at): New.
	(reinsert_fast_tracepoint_jumps_at): New.
	(set_breakpoint_at): Use write_inferior_memory.
	(uninsert_raw_breakpoint): Use write_inferior_memory.
	(check_mem_read): Mask out fast tracepoint jumps.
	(check_mem_write): Mask out fast tracepoint jumps.
	* mem-break.h (struct fast_tracepoint_jump): Forward declare.
	(set_fast_tracepoint_jump): Declare.
	(delete_fast_tracepoint_jump)
	(fast_tracepoint_jump_here, uninsert_fast_tracepoint_jumps_at)
	(reinsert_fast_tracepoint_jumps_at): Declare.
	* regcache.c: Don't compile many functions when building the
	in-process agent library.
	(init_register_cache) [IN_PROCESS_AGENT]: Don't allow allocating
	the register buffer in the heap.
	(free_register_cache): If the register buffer isn't owned by the
	regcache, don't free it.
	(set_register_cache) [IN_PROCESS_AGENT]: Don't re-alocate
	pre-existing register caches.
	* remote-utils.c (convert_int_to_ascii): Constify `from' parameter
	type.
	(convert_ascii_to_int): : Constify `from' parameter type.
	(decode_M_packet, decode_X_packet): Replace the `to' parameter by
	a `to_p' pointer to pointer parameter.  If TO_P is NULL, malloc
	the needed buffer in-place.
	(relocate_instruction): New.
	* server.c (handle_query) <qSymbols>: If the target supports
	tracepoints, give it a chance of looking up symbols.  Report
	support for fast tracepoints.
	(handle_status): Stabilize threads.
	(process_serial_event): Adjust.
	* server.h (struct fast_tracepoint_jump): Forward declare.
	(struct process_info) <fast_tracepoint_jumps>: New field.
	(convert_ascii_to_int, convert_int_to_ascii): Adjust.
	(decode_X_packet, decode_M_packet): Adjust.
	(relocate_instruction): Declare.
	(in_process_agent_loaded): Declare.
	(tracepoint_look_up_symbols): Declare.
	(struct fast_tpoint_collect_status): Declare.
	(fast_tracepoint_collecting): Declare.
	(force_unlock_trace_buffer): Declare.
	(handle_tracepoint_bkpts): Declare.
	(initialize_low_tracepoint)
	(supply_fast_tracepoint_registers) [IN_PROCESS_AGENT]: Declare.
	* target.h (struct target_ops) <stabilize_threads,
	install_fast_tracepoint_jump_pad>: New fields.
	(stabilize_threads, install_fast_tracepoint_jump_pad): New.
	* tracepoint.c [HAVE_MALLOC_H]: Include malloc.h.
	[HAVE_STDINT_H]: Include stdint.h.
	(trace_debug_1): Rename to ...
	(trace_vdebug): ... this.
	(trace_debug): Rename to ...
	(trace_debug_1): ... this.  Add `level' parameter.
	(trace_debug): New.
	(ATTR_USED, ATTR_NOINLINE): New.
	(IP_AGENT_EXPORT): New.
	(gdb_tp_heap_buffer, gdb_jump_pad_buffer, gdb_jump_pad_buffer_end)
	(collecting, gdb_collect, stop_tracing, flush_trace_buffer)
	(about_to_request_buffer_space, trace_buffer_is_full)
	(stopping_tracepoint, expr_eval_result, error_tracepoint)
	(tracepoints, tracing, trace_buffer_ctrl, trace_buffer_ctrl_curr)
	(trace_buffer_lo, trace_buffer_hi, traceframe_read_count)
	(traceframe_write_count, traceframes_created)
	(trace_state_variables)
	New renaming defines.
	(struct ipa_sym_addresses): New.
	(STRINGIZE_1, STRINGIZE, IPA_SYM): New.
	(symbol_list): New.
	(ipa_sym_addrs): New.
	(all_tracepoint_symbols_looked_up): New.
	(in_process_agent_loaded): New.
	(write_e_ipa_not_loaded): New.
	(maybe_write_ipa_not_loaded): New.
	(tracepoint_look_up_symbols): New.
	(debug_threads) [IN_PROCESS_AGENT]: New.
	(read_inferior_memory) [IN_PROCESS_AGENT]: New.
	(UNKNOWN_SIDE_EFFECTS): New.
	(stop_tracing): New.
	(flush_trace_buffer): New.
	(stop_tracing_bkpt): New.
	(flush_trace_buffer_bkpt): New.
	(read_inferior_integer): New.
	(read_inferior_uinteger): New.
	(read_inferior_data_pointer): New.
	(write_inferior_data_pointer): New.
	(write_inferior_integer): New.
	(write_inferior_uinteger): New.
	(struct collect_static_trace_data_action): Delete.
	(enum tracepoint_type): New.
	(struct tracepoint) <type>: New field `type'.
	<actions_str, step_actions, step_actions_str>: Only include in GDBserver.
	<orig_size, obj_addr_on_target, adjusted_insn_addr>
	<adjusted_insn_addr_end, jump_pad, jump_pad_end>: New fields.
	(tracepoints): Use IP_AGENT_EXPORT.
	(last_tracepoint): Don't include in the IPA.
	(stopping_tracepoint): Use IP_AGENT_EXPORT.
	(trace_buffer_is_full): Use IP_AGENT_EXPORT.
	(alloced_trace_state_variables): New.
	(trace_state_variables): Use IP_AGENT_EXPORT.
	(traceframe_t): Delete unused variable.
	(circular_trace_buffer): Don't include in the IPA.
	(trace_buffer_start): Delete.
	(struct trace_buffer_control): New.
	(trace_buffer_free): Delete.
	(struct ipa_trace_buffer_control): New.
	(GDBSERVER_FLUSH_COUNT_MASK, GDBSERVER_FLUSH_COUNT_MASK_PREV)
	(GDBSERVER_FLUSH_COUNT_MASK_CURR, GDBSERVER_UPDATED_FLUSH_COUNT_BIT):
	New.
	(trace_buffer_ctrl): New.
	(TRACE_BUFFER_CTRL_CURR): New.
	(trace_buffer_start, trace_buffer_free, trace_buffer_end_free):
	Reimplement as macros.
	(trace_buffer_wrap): Delete.
	(traceframe_write_count, traceframe_read_count)
	(traceframes_created, tracing): Use IP_AGENT_EXPORT.
	(struct tracepoint_hit_ctx) <type>: New field.
	(struct fast_tracepoint_ctx): New.
	(memory_barrier): New.
	(cmpxchg): New.
	(record_tracepoint_error): Update atomically in the IPA.
	(clear_inferior_trace_buffer): New.
	(about_to_request_buffer_space): New.
	(trace_buffer_alloc): Handle GDBserver and inferior simulatenous
	updating the same buffer.
	(add_tracepoint): Default the tracepoint's type to trap
	tracepoint, and orig_size to -1.
	(get_trace_state_variable) [IN_PROCESS_AGENT]: Handle allocated
	internal variables.
	(create_trace_state_variable): New parameter `gdb'.  Handle it.
	(clear_installed_tracepoints): Clear fast tracepoint jumps.
	(cmd_qtdp): Handle fast tracepoints.
	(cmd_qtdv): Adjust.
	(max_jump_pad_size): New.
	(gdb_jump_pad_head): New.
	(get_jump_space_head): New.
	(claim_jump_space): New.
	(sort_tracepoints): New.
	(MAX_JUMP_SIZE): New.
	(cmd_qtstart): Handle fast tracepoints.  Sync tracepoints with the
	IPA.
	(stop_tracing) [IN_PROCESS_AGENT]: Don't include the tdisconnected
	support.  Upload fast traceframes, and delete internal IPA
	breakpoints.
	(stop_tracing_handler): New.
	(flush_trace_buffer_handler): New.
	(cmd_qtstop): Upload fast tracepoints.
	(response_tracepoint): Handle fast tracepoints.
	(tracepoint_finished_step): Upload fast traceframes.  Set the
	tracepoint hit context's tracepoint type.
	(handle_tracepoint_bkpts): New.
	(tracepoint_was_hit): Set the tracepoint hit context's tracepoint
	type.  Add comment about fast tracepoints.
	(collect_data_at_tracepoint) [IN_PROCESS_AGENT]: Don't access the
	non-existing action_str field.
	(get_context_regcache): Handle fast tracepoints.
	(do_action_at_tracepoint) [!IN_PROCESS_AGENT]: Don't write the PC
	to the regcache.
	(fast_tracepoint_from_jump_pad_address): New.
	(fast_tracepoint_from_ipa_tpoint_address): New.
	(collecting_t): New.
	(force_unlock_trace_buffer): New.
	(fast_tracepoint_collecting): New.
	(collecting): New.
	(gdb_collect): New.
	(write_inferior_data_ptr): New.
	(target_tp_heap): New.
	(target_malloc): New.
	(download_agent_expr): New.
	(UALIGN): New.
	(download_tracepoints): New.
	(download_trace_state_variables): New.
	(upload_fast_traceframes): New.
	(IPA_FIRST_TRACEFRAME): New.
	(IPA_NEXT_TRACEFRAME_1): New.
	(IPA_NEXT_TRACEFRAME): New.
	[IN_PROCESS_AGENT]: Include sys/mman.h and fcntl.h.
	[IN_PROCESS_AGENT] (gdb_tp_heap_buffer, gdb_jump_pad_buffer)
	(gdb_jump_pad_buffer_end): New.
	[IN_PROCESS_AGENT] (initialize_tracepoint_ftlib): New.
	(initialize_tracepoint): Adjust.
	[IN_PROCESS_AGENT]: Allocate the IPA heap, and jump pad scratch
	buffer.  Initialize the low module.
	* utils.c (PREFIX, TOOLNAME): New.
	(malloc_failure): Use PREFIX.
	(error): In the IPA, an error causes an exit.
	(fatal, warning): Use PREFIX.
	(internal_error): Use TOOLNAME.
	(NUMCELLS): Increase to 10.
	* configure, config.in: Regenerate.

gdb/
2010-06-01  Pedro Alves  <pedro@codesourcery.com>

	* NEWS: Mention gdbserver fast tracepoints support.

gdb/doc/
2010-06-01  Pedro Alves  <pedro@codesourcery.com>

	* gdb.texinfo (Set Tracepoints): Mention tracepoints support in
	gdbserver, and add cross reference.
	(Tracepoints support in gdbserver): New subsection.
 2010-06-01 13:20:52 +00:00
Pedro Alves
7984d53228 * linux-low.c (linux_kill, linux_detach): Adjust. 
(status_pending_p_callback): Remove redundant statement.  Check
	for !TARGET_WAITIKIND_IGNORE, instead of
	TARGET_WAITKIND_STOPPED.
	(handle_tracepoints): Make sure LWP is locked.  Adjust.
	(linux_wait_for_event_1): Adjust.
	(linux_cancel_breakpoints): New.
	(unsuspend_one_lwp): New.
	(unsuspend_all_lwps): New.
	(linux_wait_1): If finishing a step-over, unsuspend all lwps.
	(send_sigstop_callback): Change return type to int, add new
	`except' parameter and handle it.
	(suspend_and_send_sigstop_callback): New.
	(stop_all_lwps): Add new `suspend' and `expect' parameters, and
	pass them down.  If SUSPEND, also increment the lwp's suspend
	count.
	(linux_resume_one_lwp): Add notice about resuming a suspended LWP.
	(need_step_over_p): Don't consider suspended LWPs.
	(start_step_over): Adjust.
	(proceed_one_lwp): Change return type to int, add new `except'
	parameter and handle it.
	(unsuspend_and_proceed_one_lwp): New.
	(proceed_all_lwps): Use find_inferior instead of
	for_each_inferior.
	(unstop_all_lwps): Add `unsuspend' parameter.  If UNSUSPEND, them
	also decrement the suspend count of LWPs.  Pass `except' down,
	instead of hacking its suspend count.
	(linux_pause_all): Add `freeze' parameter.  Adjust.
	(linux_unpause_all): New.
	(linux_target_ops): Install linux_unpause_all.
	* server.c (handle_status): Adjust.
	* target.h (struct target_ops): New fields `unpause_all' and
	`cancel_breakpoints'.  Add new parameter to `pause_all'.
	(pause_all): Add new `freeze' parameter.
	(unpause_all): New.
	(cancel_breakpoints): New.
	* tracepoint.c (clear_installed_tracepoints): Pause threads, and
	cancel breakpoints.
	(cmd_qtstart): Pause threads.
	(stop_tracing): Pause threads, and cancel breakpoints.
	* win32-low.c (win32_target_ops): Adjust.
 2010-05-03 04:02:20 +00:00