tracepoint.h File Reference

Go to the source code of this file.

Classes
struct	fast_tpoint_collect_status

Macros
#define	IPA_BUFSIZ   100
#define	ATTR_USED
#define	ATTR_NOINLINE
#define	EXPORTED_SYMBOL
#define	IP_AGENT_EXPORT_FUNC
#define	IP_AGENT_EXPORT_VAR
#define	IP_AGENT_EXPORT_VAR_DECL   extern

Enumerations
enum	fast_tpoint_collect_result { fast_tpoint_collect_result::not_collecting, fast_tpoint_collect_result::before_insn, fast_tpoint_collect_result::at_insn }

Functions
void	initialize_tracepoint (void)
void	tracepoint_look_up_symbols (void)
void	stop_tracing (void)
int	handle_tracepoint_general_set (char *own_buf)
int	handle_tracepoint_query (char *own_buf)
int	tracepoint_finished_step (struct thread_info *tinfo, CORE_ADDR stop_pc)
int	tracepoint_was_hit (struct thread_info *tinfo, CORE_ADDR stop_pc)
void	release_while_stepping_state_list (struct thread_info *tinfo)
int	in_readonly_region (CORE_ADDR addr, ULONGEST length)
int	traceframe_read_mem (int tfnum, CORE_ADDR addr, unsigned char *buf, ULONGEST length, ULONGEST *nbytes)
int	fetch_traceframe_registers (int tfnum, struct regcache *regcache, int regnum)
int	traceframe_read_sdata (int tfnum, ULONGEST offset, unsigned char *buf, ULONGEST length, ULONGEST *nbytes)
int	traceframe_read_info (int tfnum, struct buffer *buffer)
fast_tpoint_collect_result	fast_tracepoint_collecting (CORE_ADDR thread_area, CORE_ADDR stop_pc, struct fast_tpoint_collect_status *status)
void	force_unlock_trace_buffer (void)
int	handle_tracepoint_bkpts (struct thread_info *tinfo, CORE_ADDR stop_pc)
int	claim_trampoline_space (ULONGEST used, CORE_ADDR *trampoline)
int	have_fast_tracepoint_trampoline_buffer (char *msgbuf)
void	gdb_agent_about_to_close (int pid)
int	agent_mem_read (struct eval_agent_expr_context *ctx, unsigned char *to, CORE_ADDR from, ULONGEST len)
LONGEST	agent_get_trace_state_variable_value (int num)
void	agent_set_trace_state_variable_value (int num, LONGEST val)
int	agent_tsv_read (struct eval_agent_expr_context *ctx, int n)
int	agent_mem_read_string (struct eval_agent_expr_context *ctx, unsigned char *to, CORE_ADDR from, ULONGEST len)
ULONGEST	get_raw_reg (const unsigned char *raw_regs, int regnum)
CORE_ADDR	get_raw_reg_func_addr (void)
CORE_ADDR	get_get_tsv_func_addr (void)
CORE_ADDR	get_set_tsv_func_addr (void)

Variables
IP_AGENT_EXPORT_VAR_DECL int	tracing
int	disconnected_tracing
int	current_traceframe

Macro Definition Documentation

ATTR_NOINLINE

#define ATTR_NOINLINE

Definition at line 33 of file tracepoint.h.

ATTR_USED

#define ATTR_USED

Definition at line 32 of file tracepoint.h.

EXPORTED_SYMBOL

#define EXPORTED_SYMBOL

Definition at line 44 of file tracepoint.h.

IP_AGENT_EXPORT_FUNC

#define IP_AGENT_EXPORT_FUNC

Definition at line 65 of file tracepoint.h.

IP_AGENT_EXPORT_VAR

#define IP_AGENT_EXPORT_VAR

Definition at line 66 of file tracepoint.h.

IP_AGENT_EXPORT_VAR_DECL

#define IP_AGENT_EXPORT_VAR_DECL   extern

Definition at line 67 of file tracepoint.h.

IPA_BUFSIZ

#define IPA_BUFSIZ   100

Definition at line 24 of file tracepoint.h.

Referenced by initialize_fast_tracepoint_trampoline_buffer(), initialize_tracepoint(), and x86_get_min_fast_tracepoint_insn_len().

Enumeration Type Documentation

fast_tpoint_collect_result

enum fast_tpoint_collect_result

strong

Enumerator
not_collecting
before_insn
at_insn

Definition at line 121 of file tracepoint.h.

Function Documentation

agent_get_trace_state_variable_value()

LONGEST agent_get_trace_state_variable_value

(

int

num

)

Definition at line 2140 of file tracepoint.c.

References get_trace_state_variable_value().

Referenced by gdb_eval_agent_expr().

agent_mem_read()

int agent_mem_read	(	struct eval_agent_expr_context *	ctx,
		unsigned char *	to,
		CORE_ADDR	from,
		ULONGEST	len
	)

Definition at line 4940 of file tracepoint.c.

References add_traceframe_block(), read_inferior_memory(), sp, eval_agent_expr_context::tframe, eval_agent_expr_context::tpoint, and trace_debug.

Referenced by do_action_at_tracepoint(), and gdb_eval_agent_expr().

agent_mem_read_string()

int agent_mem_read_string	(	struct eval_agent_expr_context *	ctx,
		unsigned char *	to,
		CORE_ADDR	from,
		ULONGEST	len
	)

Definition at line 4982 of file tracepoint.c.

References add_traceframe_block(), read_inferior_memory(), sp, eval_agent_expr_context::tframe, eval_agent_expr_context::tpoint, xfree(), and xmalloc().

Referenced by gdb_eval_agent_expr().

agent_set_trace_state_variable_value()

void agent_set_trace_state_variable_value	(	int	num,
		LONGEST	val
	)

Definition at line 2146 of file tracepoint.c.

References set_trace_state_variable_value().

Referenced by gdb_eval_agent_expr().

agent_tsv_read()

int agent_tsv_read	(	struct eval_agent_expr_context *	ctx,
		int	n
	)

Definition at line 5044 of file tracepoint.c.

References add_traceframe_block(), get_trace_state_variable_value(), eval_agent_expr_context::tframe, eval_agent_expr_context::tpoint, and trace_debug.

Referenced by gdb_eval_agent_expr().

claim_trampoline_space()

int claim_trampoline_space	(	ULONGEST	used,
		CORE_ADDR *	trampoline
	)

Definition at line 2952 of file tracepoint.c.

References ipa_sym_addresses::addr_gdb_trampoline_buffer, ipa_sym_addresses::addr_gdb_trampoline_buffer_end, internal_error(), ipa_sym_addrs, paddress(), pulongest(), read_inferior_data_pointer(), trace_debug, trampoline_buffer_head, and trampoline_buffer_tail.

Referenced by i386_install_fast_tracepoint_jump_pad().

fast_tracepoint_collecting()

fast_tpoint_collect_result fast_tracepoint_collecting	(	CORE_ADDR	thread_area,
		CORE_ADDR	stop_pc,
		struct fast_tpoint_collect_status *	status
	)

Definition at line 5571 of file tracepoint.c.

References ipa_sym_addresses::addr_collecting, ipa_sym_addresses::addr_gdb_jump_pad_buffer, ipa_sym_addresses::addr_gdb_jump_pad_buffer_end, ipa_sym_addresses::addr_gdb_trampoline_buffer, ipa_sym_addresses::addr_gdb_trampoline_buffer_end, tracepoint::address, fast_tpoint_collect_status::adjusted_insn_addr, tracepoint::adjusted_insn_addr, fast_tpoint_collect_status::adjusted_insn_addr_end, tracepoint::adjusted_insn_addr_end, at_insn, before_insn, fast_tracepoint_from_ipa_tpoint_address(), fast_tracepoint_from_jump_pad_address(), fast_tracepoint_from_trampoline_address(), internal_error(), ipa_sym_addrs, tracepoint::jump_pad, tracepoint::jump_pad_end, not_collecting, tracepoint::number, paddress(), read_inferior_data_pointer(), read_inferior_memory(), fast_tpoint_collect_status::tpoint_addr, fast_tpoint_collect_status::tpoint_num, trace_debug, tracepoint::trampoline, tracepoint::trampoline_end, and warning().

Referenced by linux_fast_tracepoint_collecting().

fetch_traceframe_registers()

int fetch_traceframe_registers	(	int	tfnum,
		struct regcache *	regcache,
		int	regnum
	)

Definition at line 5185 of file tracepoint.c.

References tracepoint::address, find_next_tracepoint_by_number(), find_traceframe(), regcache_write_pc(), supply_regblock(), traceframe::tpnum, trace_debug, and traceframe_find_regblock().

Referenced by process_serial_event().

force_unlock_trace_buffer()

void force_unlock_trace_buffer

(

void

)

Definition at line 5555 of file tracepoint.c.

References ipa_sym_addresses::addr_collecting, ipa_sym_addrs, and write_inferior_data_pointer().

Referenced by maybe_move_out_of_jump_pad().

gdb_agent_about_to_close()

void gdb_agent_about_to_close

(

int

pid

)

Definition at line 3960 of file tracepoint.c.

References current_thread, find_any_thread_of_pid(), IPA_CMD_BUF_SIZE, maybe_write_ipa_not_loaded(), and run_inferior_command().

Referenced by kill_inferior().

get_get_tsv_func_addr()

CORE_ADDR get_get_tsv_func_addr

(

void

)

Definition at line 5895 of file tracepoint.c.

References ipa_sym_addresses::addr_get_trace_state_variable_value_ptr, error(), ipa_sym_addrs, and read_inferior_data_pointer().

Referenced by compile_bytecodes().

get_raw_reg()

ULONGEST get_raw_reg	(	const unsigned char *	raw_regs,
		int	regnum
	)

Definition at line 139 of file linux-aarch64-ipa.c.

References aarch64_ft_collect_regmap, AARCH64_NUM_FT_COLLECT_GREGS, FT_ACR, FT_CR_SIZE, FT_FPC, FT_GPR, FT_PSWA, FT_PSWA_L, FT_PSWM, FT_PSWM_U, FT_VR, I386_CS_REGNUM, i386_ft_collect_regmap, I386_GS_REGNUM, i386_num_regs, offset, ppc_ft_collect_regmap, PPC_NUM_FT_COLLECT_GREGS, s390_regmap, s390_regnum, x86_64_ft_collect_regmap, and X86_64_NUM_FT_COLLECT_GREGS.

get_raw_reg_func_addr()

CORE_ADDR get_raw_reg_func_addr

(

void

)

Definition at line 5883 of file tracepoint.c.

References ipa_sym_addresses::addr_get_raw_reg_ptr, error(), ipa_sym_addrs, and read_inferior_data_pointer().

Referenced by aarch64_emit_reg(), i386_emit_reg(), ppc_emit_reg(), and s390_emit_reg().

get_set_tsv_func_addr()

CORE_ADDR get_set_tsv_func_addr

(

void

)

Definition at line 5908 of file tracepoint.c.

References ipa_sym_addresses::addr_set_trace_state_variable_value_ptr, error(), ipa_sym_addrs, and read_inferior_data_pointer().

Referenced by compile_bytecodes().

handle_tracepoint_bkpts()

int handle_tracepoint_bkpts	(	struct thread_info *	tinfo,
		CORE_ADDR	stop_pc
	)

Definition at line 4472 of file tracepoint.c.

References ipa_sym_addresses::addr_error_tracepoint, ipa_sym_addresses::addr_expr_eval_result, ipa_sym_addresses::addr_flush_trace_buffer, ipa_sym_addresses::addr_stop_tracing, ipa_sym_addresses::addr_stopping_tracepoint, ipa_sym_addresses::addr_trace_buffer_is_full, agent_loaded_p(), debug_threads, error_tracepoint, expr_eval_no_error, expr_eval_result, fast_tracepoint_from_ipa_tpoint_address(), ipa_sym_addrs, paddress(), read_inferior_data_pointer(), read_inferior_integer(), stop_tracing(), stopping_tracepoint, trace_debug, upload_fast_traceframes(), write_inferior_data_pointer(), and write_inferior_integer().

Referenced by handle_tracepoints().

handle_tracepoint_general_set()

int handle_tracepoint_general_set

(

char *

own_buf

)

Definition at line 4157 of file tracepoint.c.

References cmd_bigqtbuffer_circular(), cmd_bigqtbuffer_size(), cmd_qtdisconnected(), cmd_qtdp(), cmd_qtdpsrc(), cmd_qtdv(), cmd_qtenable_disable(), cmd_qtframe(), cmd_qtinit(), cmd_qtnotes(), cmd_qtro(), cmd_qtstart(), cmd_qtstop(), and startswith().

Referenced by handle_general_set().

handle_tracepoint_query()

int handle_tracepoint_query

(

char *

own_buf

)

Definition at line 4234 of file tracepoint.c.

References cmd_qtbuffer(), cmd_qtfp(), cmd_qtfstm(), cmd_qtfv(), cmd_qtminftpilen(), cmd_qtp(), cmd_qtsp(), cmd_qtsstm(), cmd_qtstatus(), cmd_qtstmat(), cmd_qtsv(), cmd_qtv(), and startswith().

Referenced by handle_query().

have_fast_tracepoint_trampoline_buffer()

int have_fast_tracepoint_trampoline_buffer

(

char *

msgbuf

)

Definition at line 2995 of file tracepoint.c.

References ipa_sym_addresses::addr_gdb_trampoline_buffer_end, ipa_sym_addresses::addr_gdb_trampoline_buffer_error, internal_error(), ipa_sym_addrs, read_inferior_data_pointer(), and read_inferior_memory().

Referenced by x86_get_min_fast_tracepoint_insn_len().

in_readonly_region()

int in_readonly_region	(	CORE_ADDR	addr,
		ULONGEST	length
	)

Definition at line 2903 of file tracepoint.c.

References readonly_region::end, readonly_region::next, readonly_regions, and readonly_region::start.

Referenced by gdb_read_memory().

initialize_tracepoint()

void initialize_tracepoint

(

void

)

Definition at line 7406 of file tracepoint.c.

References alloc_jump_pad_buffer(), create_trace_state_variable(), DEFAULT_TRACE_BUFFER_SIZE, get_timestamp(), init_trace_buffer(), initialize_low_tracepoint(), IPA_BUFSIZ, perror_with_name(), set_trace_state_variable_getter(), set_trace_state_variable_name(), and xmalloc().

Referenced by captured_main().

release_while_stepping_state_list()

void release_while_stepping_state_list

(

struct thread_info *

tinfo

)

Definition at line 4349 of file tracepoint.c.

References wstep_state::next, release_while_stepping_state(), and thread_info::while_stepping.

Referenced by linux_resume_one_lwp_throw(), and tracepoint_finished_step().

stop_tracing()

void stop_tracing

(

void

)

Definition at line 3413 of file tracepoint.c.

References ipa_sym_addresses::addr_tracing, agent_loaded_p(), clear_installed_tracepoints(), delete_breakpoint(), error_tracepoint, eval_result_names, expr_eval_no_error, expr_eval_result, flush_trace_buffer_bkpt, gdb_connected(), get_timestamp(), internal_error(), ipa_sym_addrs, tracepoint::number, tracepoint::pass_count, pause_all, stop_tracing_bkpt, stopping_tracepoint, trace_buffer_is_full, trace_debug, tracing, tracing_stop_reason, tracing_stop_time, tracing_stop_tpnum, unpause_all, upload_fast_traceframes(), and write_inferior_integer().

Referenced by captured_main(), cmd_qtinit(), cmd_qtstop(), handle_detach(), handle_tracepoint_bkpts(), tracepoint_finished_step(), tracepoint_was_hit(), and upload_fast_traceframes().

traceframe_read_info()

int traceframe_read_info	(	int	tfnum,
		struct buffer *	buffer
	)

Definition at line 5462 of file tracepoint.c.

References buffer_grow_str, buffer_grow_str0, build_traceframe_info_xml(), traceframe::data, traceframe::data_size, find_traceframe(), trace_debug, and traceframe_walk_blocks().

Referenced by handle_qxfer_traceframe_info().

traceframe_read_mem()

int traceframe_read_mem	(	int	tfnum,
		CORE_ADDR	addr,
		unsigned char *	buf,
		ULONGEST	length,
		ULONGEST *	nbytes
	)

Definition at line 5236 of file tracepoint.c.

References traceframe::data, traceframe::data_size, find_traceframe(), paddress(), trace_debug, and traceframe_find_block_type().

Referenced by gdb_read_memory().

traceframe_read_sdata()

int traceframe_read_sdata	(	int	tfnum,
		ULONGEST	offset,
		unsigned char *	buf,
		ULONGEST	length,
		ULONGEST *	nbytes
	)

Definition at line 5361 of file tracepoint.c.

References traceframe::data, traceframe::data_size, find_traceframe(), offset, trace_debug, and traceframe_find_block_type().

Referenced by handle_qxfer_statictrace().

tracepoint_finished_step()

int tracepoint_finished_step	(	struct thread_info *	tinfo,
		CORE_ADDR	stop_pc
	)

Definition at line 4367 of file tracepoint.c.

References agent_loaded_p(), trap_tracepoint_ctx::base, collect_data_at_step(), wstep_state::current_step, expr_eval_no_error, expr_eval_result, find_tracepoint(), get_thread_regcache(), tracepoint::hit_count, thread_info::id, wstep_state::next, paddress(), tracepoint::pass_count, trap_tracepoint_ctx::regcache, release_while_stepping_state(), release_while_stepping_state_list(), tracepoint::step_count, stop_tracing(), stopping_tracepoint, target_pid_to_str(), wstep_state::tp_address, wstep_state::tp_number, trace_buffer_is_full, trace_debug, tracing, trap_tracepoint, tracepoint_hit_ctx::type, upload_fast_traceframes(), and thread_info::while_stepping.

Referenced by handle_tracepoints().

tracepoint_look_up_symbols()

void tracepoint_look_up_symbols

(

void

)

Definition at line 314 of file tracepoint.c.

References agent_loaded_p(), agent_look_up_symbols(), debug_printf(), debug_threads, ipa_sym_addrs, look_up_one_symbol(), name, and symbol_list.

Referenced by handle_query().

tracepoint_was_hit()

int tracepoint_was_hit	(	struct thread_info *	tinfo,
		CORE_ADDR	stop_pc
	)

Definition at line 4554 of file tracepoint.c.

References add_while_stepping_state(), tracepoint::address, trap_tracepoint_ctx::base, collect_data_at_tracepoint(), tracepoint::cond, condition_true_at_tracepoint(), tracepoint::enabled, expr_eval_no_error, expr_eval_result, get_thread_regcache(), thread_info::id, tracepoint::next, tracepoint::number, paddress(), trap_tracepoint_ctx::regcache, static_tracepoint, tracepoint::step_count, stop_tracing(), stopping_tracepoint, target_pid_to_str(), trace_buffer_is_full, trace_debug, tracepoints, tracing, trap_tracepoint, tracepoint::type, and tracepoint_hit_ctx::type.

Referenced by handle_tracepoints().

Variable Documentation

current_traceframe

int current_traceframe

Definition at line 979 of file tracepoint.c.

Referenced by captured_main(), cmd_qtframe(), cmd_qtinit(), cmd_qtv(), find_next_traceframe_by_tracepoint(), find_next_traceframe_in_range(), gdb_read_memory(), gdb_write_memory(), handle_qxfer_statictrace(), handle_qxfer_traceframe_info(), process_serial_event(), and traceframe_read_tsv().

disconnected_tracing

int disconnected_tracing

Definition at line 1251 of file tracepoint.c.

Referenced by captured_main(), cmd_qtdisconnected(), cmd_qtstatus(), and handle_detach().

tracing

IP_AGENT_EXPORT_VAR_DECL int tracing

Definition at line 70 of file tracepoint.h.