op_events.c File Reference

#include "op_events.h"
#include "op_libiberty.h"
#include "op_fileio.h"
#include "op_string.h"
#include "op_cpufreq.h"
#include "op_hw_specific.h"
#include "op_parse_event.h"
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <ctype.h>

Include dependency graph for op_events.c:

Go to the source code of this file.

Functions
static	LIST_HEAD (events_list)
static	LIST_HEAD (um_list)
static void	delete_event (struct op_event *event)
static void	read_events (char const *file)
static void	read_unit_masks (char const *file)
static void	free_unit_mask (struct op_unit_mask *um)
static char *	build_fn (const char *cpu_name, const char *fn)
static void	parse_error (char const *context)
static int	parse_int (char const *str)
static int	parse_hex (char const *str)
static u64	parse_long_hex (char const *str)
static void	include_um (const char *start, const char *end)
unsigned	parse_extra (const char *s)
static void	parse_um (struct op_unit_mask *um, char const *line)
static void	parse_um_entry (struct op_described_um *entry, char const *line)
static struct op_unit_mask *	new_unit_mask (void)
static u32	parse_counter_mask (char const *str)
static struct op_unit_mask *	try_find_um (char const *value)
static struct op_unit_mask *	find_um (char const *value)
static struct op_unit_mask *	merge_um (char *value)
static int	next_token (char const **cp, char **name, char **value)
static void	include_events (char *value)
static struct op_event *	new_event (void)
static void	free_event (struct op_event *event)
static int	check_unit_mask (struct op_unit_mask const *um, char const *cpu_name)
static void	arch_filter_events (op_cpu cpu_type)
static void	load_events_name (const char *cpu_name)
static void	load_events (op_cpu cpu_type)
struct list_head *	op_events (op_cpu cpu_type)
static void	delete_unit_mask (struct op_unit_mask *unit)
void	op_free_events (void)
static struct op_event *	find_event_any (u32 nr)
static struct op_event *	find_event_um (u32 nr, u32 um)
static FILE *	open_event_mapping_file (char const *cpu_name)
static char const *	get_mapping (u32 nr, FILE *fp)
char const *	find_mapping_for_event (u32 nr, op_cpu cpu_type)
static int	match_event (int i, struct op_event *event, unsigned um)
struct op_event *	find_event_by_name (char const *name, unsigned um, int um_valid)
static struct op_event *	find_next_event (struct op_event *e)
struct op_event *	op_find_event (op_cpu cpu_type, u32 nr, u32 um)
struct op_event *	op_find_event_any (op_cpu cpu_type, u32 nr)
int	op_check_events (int ctr, u32 nr, u32 um, op_cpu cpu_type)
void	op_default_event (op_cpu cpu_type, struct op_default_event_descr *descr)
static void	extra_check (struct op_event *e, u32 unit_mask)
static void	another_extra_check (struct op_event *e, char *name, unsigned w)
static void	do_resolve_unit_mask (struct op_event *e, struct parsed_event *pe, u32 *extra)
void	op_resolve_unit_mask (struct parsed_event *pe, u32 *extra)
Variables
static char const *	filename
static unsigned int	line_nr

---

Detailed Description

Details of PMC profiling events

You can have silliness here.

Remarks:

Copyright 2002 OProfile authors

Read the file COPYING

Author:

John Levon

Philippe Elie

Definition in file op_events.c.

---

Function Documentation

static void another_extra_check	(	struct op_event *	e,
		char *	name,
		unsigned	w
	)			[static]

Definition at line 1231 of file op_events.c.

References op_unit_mask::op_described_um::desc, op_unit_mask::op_described_um::extra, op_unit_mask::num, op_unit_mask::um, and op_event::unit.

Referenced by do_resolve_unit_mask().

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static void arch_filter_events

(

op_cpu

cpu_type

)

[static]

Definition at line 619 of file op_events.c.

References arch_get_filter(), delete_event(), op_event::event_next, list_entry, and list_for_each_safe.

Referenced by load_events(), and op_events().

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static char* build_fn	(	const char *	cpu_name,
		const char *	fn
	)			[static]

Definition at line 38 of file op_events.c.

References OP_DATADIR.

Referenced by include_events(), include_um(), and load_events_name().

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static int check_unit_mask	(	struct op_unit_mask const *	um,
		char const *	cpu_name
	)			[static]

Definition at line 579 of file op_events.c.

References op_unit_mask::default_mask, op_unit_mask::name, op_unit_mask::num, op_unit_mask::um, op_unit_mask::unit_type_mask, op_unit_mask::used, utm_bitmask, utm_mandatory, and op_unit_mask::op_described_um::value.

Referenced by load_events().

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static void delete_event

(

struct op_event *

event

)

[static]

Definition at line 746 of file op_events.c.

References op_event::desc, op_event::event_next, list_del(), and op_event::name.

Referenced by arch_filter_events(), and op_free_events().

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static void delete_unit_mask

(

struct op_unit_mask *

unit

)

[static]

Definition at line 730 of file op_events.c.

References op_unit_mask::op_described_um::desc, list_del(), op_unit_mask::name, op_unit_mask::num, op_unit_mask::um, and op_unit_mask::um_next.

Referenced by op_free_events().

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static void do_resolve_unit_mask	(	struct op_event *	e,
		struct parsed_event *	pe,
		u32 *	extra
	)			[static]

Definition at line 1258 of file op_events.c.

References another_extra_check(), op_unit_mask::default_mask, op_unit_mask::op_described_um::desc, op_unit_mask::op_described_um::extra, extra_check(), find_next_event(), parsed_event::name, op_unit_mask::num, op_unit_mask::um, op_event::unit, parsed_event::unit_mask, parsed_event::unit_mask_name, parsed_event::unit_mask_valid, and op_unit_mask::op_described_um::value.

Referenced by op_resolve_unit_mask().

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static void extra_check	(	struct op_event *	e,
		u32	unit_mask
	)			[static]

Definition at line 1214 of file op_events.c.

References op_unit_mask::num, op_unit_mask::um, op_event::unit, and op_unit_mask::op_described_um::value.

Referenced by do_resolve_unit_mask().

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static struct op_event* find_event_any

(

u32

nr

)

[static, read]

Definition at line 773 of file op_events.c.

References op_event::event_next, list_entry, and list_for_each.

Referenced by op_find_event_any().

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struct op_event* find_event_by_name	(	char const *	name,
		unsigned	um,
		int	um_valid
	)			[read]

Find a given event by name

Definition at line 958 of file op_events.c.

References op_event::event_next, list_entry, list_for_each, and match_event().

Referenced by oprof_start::alloc_selected_events(), check_event(), do_test(), get_default_event(), ibs_parse_and_set_events(), op_resolve_unit_mask(), and resolve_events().

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static struct op_event* find_event_um	(	u32	nr,
		u32	um
	)			[static, read]

Definition at line 786 of file op_events.c.

References op_event::event_next, list_entry, and list_for_each.

Referenced by op_find_event().

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char const* find_mapping_for_event	(	u32	val,
		op_cpu	cpu_type
	)

Find a mapping for a given event ID for architectures requiring additional information from what is held in the events file.

Definition at line 909 of file op_events.c.

References CPU_PPC64_970, CPU_PPC64_970MP, CPU_PPC64_IBM_COMPAT_V1, CPU_PPC64_PA6T, CPU_PPC64_POWER4, CPU_PPC64_POWER5, CPU_PPC64_POWER5p, CPU_PPC64_POWER5pp, CPU_PPC64_POWER6, CPU_PPC64_POWER7, filename, get_mapping(), op_get_cpu_name(), and open_event_mapping_file().

Referenced by main().

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static struct op_event* find_next_event

(

struct op_event *

e

)

[static, read]

Definition at line 981 of file op_events.c.

References op_event::event_next, list_entry, op_event::name, and list_head::next.

Referenced by do_resolve_unit_mask().

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static struct op_unit_mask* find_um

(

char const *

value

)

[static, read]

Definition at line 340 of file op_events.c.

References try_find_um(), and op_unit_mask::um.

Referenced by merge_um(), and read_events().

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static void free_event

(

struct op_event *

event

)

[static]

Definition at line 457 of file op_events.c.

References op_event::event_next, and list_del().

Referenced by read_events().

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static void free_unit_mask

(

struct op_unit_mask *

um

)

[static]

Definition at line 252 of file op_events.c.

References list_del(), and op_unit_mask::um_next.

Referenced by parse_um().

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static char const* get_mapping	(	u32	nr,
		FILE *	fp
	)			[static]

This function is PPC64-specific.

Definition at line 828 of file op_events.c.

References comment_line(), empty_line(), filename, line_nr, op_event::name, next_token(), op_get_line(), parse_error(), parse_hex(), and parse_long_hex().

Referenced by find_mapping_for_event().

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static void include_events

(

char *

value

)

[static]

Definition at line 433 of file op_events.c.

References build_fn(), filename, line_nr, and read_events().

Referenced by read_events().

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static void include_um	(	const char *	start,
		const char *	end
	)			[static]

Definition at line 93 of file op_events.c.

References build_fn(), filename, line_nr, and read_unit_masks().

Referenced by parse_um().

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static LIST_HEAD

(

um_list

)

[static]

static LIST_HEAD

(

events_list

)

[static]

static void load_events

(

op_cpu

cpu_type

)

[static]

Definition at line 647 of file op_events.c.

References arch_filter_events(), check_unit_mask(), op_unit_mask::op_described_um::desc, op_event::event_next, op_unit_mask::op_described_um::extra, list_empty(), list_entry, list_for_each, load_events_name(), op_unit_mask::name, op_event::name, new_event(), new_unit_mask(), op_unit_mask::num, op_cpu_has_timer_fs(), op_get_cpu_name(), op_get_nr_counters(), TIMER_EVENT_DESC, TIMER_EVENT_NAME, TIMER_EVENT_UNIT_MASK_NAME, TIMER_EVENT_VALUE, op_unit_mask::um, op_unit_mask::um_next, unit_mask, op_unit_mask::unit_type_mask, op_unit_mask::used, utm_mandatory, op_event::val, and op_unit_mask::op_described_um::value.

Referenced by op_check_events(), op_events(), op_find_event(), and op_find_event_any().

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static void load_events_name

(

const char *

cpu_name

)

[static]

Definition at line 632 of file op_events.c.

References build_fn(), read_events(), and read_unit_masks().

Referenced by load_events().

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static int match_event	(	int	i,
		struct op_event *	event,
		unsigned	um
	)			[static]

Definition at line 942 of file op_events.c.

References op_event::unit, op_unit_mask::unit_type_mask, utm_bitmask, utm_exclusive, and utm_mandatory.

Referenced by find_event_by_name().

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static struct op_unit_mask* merge_um

(

char *

value

)

[static, read]

Definition at line 350 of file op_events.c.

References op_unit_mask::default_mask, op_unit_mask::op_described_um::desc, find_um(), MAX_UNIT_MASK, new_unit_mask(), op_unit_mask::num, parse_error(), try_find_um(), op_unit_mask::um, op_unit_mask::unit_type_mask, utm_bitmask, and utm_exclusive.

Referenced by read_events().

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static struct op_event* new_event

(

void

)

[static, read]

Definition at line 448 of file op_events.c.

References list_add_tail().

Referenced by load_events(), and read_events().

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static struct op_unit_mask* new_unit_mask

(

void

)

[static, read]

Definition at line 243 of file op_events.c.

References list_add_tail(), op_unit_mask::um, and op_unit_mask::um_next.

Referenced by load_events(), merge_um(), and read_unit_masks().

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static int next_token	(	char const **	cp,
		char **	name,
		char **	value
	)			[static]

Definition at line 390 of file op_events.c.

References op_xstrndup(), parse_error(), skip_nonws(), and skip_ws().

Referenced by get_mapping(), and read_events().

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int op_check_events	(	int	ctr,
		u32	event,
		u32	um,
		op_cpu	cpu_type
	)

sanity check event values

Parameters:

	ctr	counter number
	event	value for counter
	um	unit mask for counter
	cpu_type	processor type

Check that the counter event and unit mask values are allowed.

The function returns bitmask of failure cause 0 otherwise

See also:

op_cpu, OP_EVENTS_OK

Definition at line 1011 of file op_events.c.

References op_event::event_next, list_entry, list_for_each, load_events(), OP_INVALID_COUNTER, OP_INVALID_EVENT, OP_INVALID_UM, OP_OK_EVENT, and utm_bitmask.

Referenced by check_event().

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void op_default_event	(	op_cpu	cpu_type,
		struct op_default_event_descr *	descr
	)

op_default_event - return the details of the default event

Parameters:

	cpu_type	cpu type
	descr	filled event description

Fills in the event description if applicable

Definition at line 1056 of file op_events.c.

References op_default_event_descr::count, CPU_ARCH_PERFMON, CPU_ARM_MPCORE, CPU_ARM_SCORPION, CPU_ARM_SCORPIONMP, CPU_ARM_V6, CPU_ARM_V7, CPU_ARM_V7_CA15, CPU_ARM_V7_CA5, CPU_ARM_V7_CA7, CPU_ARM_V7_CA9, CPU_ARM_XSCALE1, CPU_ARM_XSCALE2, CPU_ATHLON, CPU_ATOM, CPU_AVR32, CPU_AXP_EV4, CPU_AXP_EV5, CPU_AXP_EV6, CPU_AXP_EV67, CPU_AXP_PCA56, CPU_CORE, CPU_CORE_2, CPU_CORE_I7, CPU_FAMILY10, CPU_FAMILY11H, CPU_FAMILY12H, CPU_FAMILY14H, CPU_FAMILY15H, CPU_HAMMER, CPU_IA64, CPU_IA64_1, CPU_IA64_2, CPU_IVYBRIDGE, CPU_MIPS_1004K, CPU_MIPS_20K, CPU_MIPS_24K, CPU_MIPS_25K, CPU_MIPS_34K, CPU_MIPS_5K, CPU_MIPS_74K, CPU_MIPS_LOONGSON2, CPU_MIPS_R10000, CPU_MIPS_R12000, CPU_MIPS_RM7000, CPU_MIPS_RM9000, CPU_MIPS_SB1, CPU_MIPS_VR5432, CPU_MIPS_VR5500, CPU_NEHALEM, CPU_NO_GOOD, CPU_P4, CPU_P4_HT2, CPU_P6_MOBILE, CPU_PII, CPU_PIII, CPU_PPC64_970, CPU_PPC64_970MP, CPU_PPC64_CELL, CPU_PPC64_IBM_COMPAT_V1, CPU_PPC64_PA6T, CPU_PPC64_POWER4, CPU_PPC64_POWER5, CPU_PPC64_POWER5p, CPU_PPC64_POWER5pp, CPU_PPC64_POWER6, CPU_PPC64_POWER7, CPU_PPC_7450, CPU_PPC_E300, CPU_PPC_E500, CPU_PPC_E500_2, CPU_PPRO, CPU_RTC, CPU_S390_Z10, CPU_S390_Z196, CPU_SANDYBRIDGE, CPU_TILE_TILE64, CPU_TILE_TILEGX, CPU_TILE_TILEPRO, CPU_TIMER_INT, CPU_WESTMERE, MAX_CPU_TYPE, op_default_event_descr::name, op_get_nr_counters(), TIMER_EVENT_NAME, and op_default_event_descr::um.

Referenced by get_default_event(), oprof_start::setup_default_event(), and show_default_event().

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struct list_head* op_events

(

op_cpu

cpu_type

)

[read]

Return the known events list. Idempotent

Definition at line 722 of file op_events.c.

References arch_filter_events(), and load_events().

Referenced by do_test(), oprof_start::fill_events(), get_default_event(), ibs_parse_and_set_events(), and main().

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struct op_event* op_find_event	(	op_cpu	cpu_type,
		u32	nr,
		u32	um
	)			[read]

Find a given event, returns NULL on error

Definition at line 993 of file op_events.c.

References find_event_um(), and load_events().

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struct op_event* op_find_event_any	(	op_cpu	cpu_type,
		u32	nr
	)			[read]

Definition at line 1004 of file op_events.c.

References find_event_any(), and load_events().

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void op_free_events

(

void

)

free memory used by any call to above function. Need to be called only once

Definition at line 758 of file op_events.c.

References delete_event(), delete_unit_mask(), op_event::event_next, list_entry, list_for_each_safe, and op_unit_mask::um_next.

Referenced by clean_exit(), cleanup(), do_test(), and main().

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void op_resolve_unit_mask	(	struct parsed_event *	pe,
		u32 *	extra
	)

Definition at line 1317 of file op_events.c.

References do_resolve_unit_mask(), find_event_by_name(), and parsed_event::name.

Referenced by check_event(), resolve_events(), show_extra_mask(), and show_unit_mask().

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static FILE* open_event_mapping_file

(

char const *

cpu_name

)

[static]

Definition at line 804 of file op_events.c.

References filename, and OP_DATADIR.

Referenced by find_mapping_for_event().

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static u32 parse_counter_mask

(

char const *

str

)

[static]

Definition at line 306 of file op_events.c.

References parse_int(), and skip_ws().

Referenced by read_events().

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static void parse_error

(

char const *

context

)

[static]

Definition at line 51 of file op_events.c.

References filename, and line_nr.

Referenced by get_mapping(), merge_um(), next_token(), parse_extra(), parse_hex(), parse_int(), parse_long_hex(), parse_um(), parse_um_entry(), read_events(), and read_unit_masks().

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unsigned parse_extra

(

const char *

s

)

Definition at line 112 of file op_events.c.

References EXTRA_ANY, EXTRA_CMASK_MASK, EXTRA_CMASK_SHIFT, EXTRA_EDGE, EXTRA_INV, parse_error(), and strisprefix().

Referenced by parse_um_entry().

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static int parse_hex

(

char const *

str

)

[static]

Definition at line 70 of file op_events.c.

References parse_error().

Referenced by get_mapping(), parse_um(), parse_um_entry(), and read_events().

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static int parse_int

(

char const *

str

)

[static]

Definition at line 60 of file op_events.c.

References parse_error().

Referenced by parse_counter_mask(), and read_events().

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static u64 parse_long_hex

(

char const *

str

)

[static]

Definition at line 83 of file op_events.c.

References parse_error().

Referenced by get_mapping().

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static void parse_um	(	struct op_unit_mask *	um,
		char const *	line
	)			[static]

Definition at line 143 of file op_events.c.

References op_unit_mask::default_mask, free_unit_mask(), include_um(), op_unit_mask::name, op_xstrndup(), parse_error(), parse_hex(), skip_nonws(), skip_ws(), strisprefix(), op_unit_mask::unit_type_mask, utm_bitmask, utm_exclusive, and utm_mandatory.

Referenced by read_unit_masks().

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static void parse_um_entry	(	struct op_described_um *	entry,
		char const *	line
	)			[static]

Definition at line 215 of file op_events.c.

References parse_error(), parse_extra(), parse_hex(), skip_nonws(), skip_ws(), and strisprefix().

Referenced by read_unit_masks().

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static void read_events

(

char const *

file

)

[static]

Definition at line 465 of file op_events.c.

References arch_get_counter_mask(), comment_line(), empty_line(), filename, find_um(), free_event(), include_events(), line_nr, merge_um(), op_event::name, new_event(), next_token(), op_get_line(), parse_counter_mask(), parse_error(), parse_hex(), parse_int(), and skip_ws().

Referenced by include_events(), and load_events_name().

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static void read_unit_masks

(

char const *

file

)

[static]

Definition at line 262 of file op_events.c.

References comment_line(), empty_line(), filename, line_nr, MAX_UNIT_MASK, new_unit_mask(), op_unit_mask::num, op_get_line(), parse_error(), parse_um(), parse_um_entry(), and op_unit_mask::um.

Referenced by include_um(), and load_events_name().

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static struct op_unit_mask* try_find_um

(

char const *

value

)

[static, read]

Definition at line 326 of file op_events.c.

References list_entry, list_for_each, op_unit_mask::name, op_unit_mask::um, op_unit_mask::um_next, and op_unit_mask::used.

Referenced by find_um(), and merge_um().

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---

Variable Documentation

char const* filename [static]

Definition at line 30 of file op_events.c.

Referenced by create_debug_line_info(), emit_lineno_info(), find_mapping_for_event(), get_mapping(), ibs_init(), include_events(), include_um(), op_write_debug_line_info(), opd_get_module_info(), opd_read_fs_int(), open_event_mapping_file(), parse_error(), populate_for_image(), read_events(), and read_unit_masks().

unsigned int line_nr [static]

Definition at line 31 of file op_events.c.

Referenced by get_mapping(), include_events(), include_um(), parse_error(), read_events(), and read_unit_masks().