oprofiled.c File Reference

#include "config.h"
#include "oprofiled.h"
#include "opd_printf.h"
#include "opd_events.h"
#include "opd_extended.h"
#include "op_config.h"
#include "op_version.h"
#include "op_hw_config.h"
#include "op_libiberty.h"
#include "op_file.h"
#include "op_abi.h"
#include "op_string.h"
#include "op_cpu_type.h"
#include "op_popt.h"
#include "op_lockfile.h"
#include "op_list.h"
#include "op_fileio.h"
#include <sys/types.h>
#include <sys/resource.h>
#include <stdlib.h>
#include <fcntl.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include <assert.h>
#include <dirent.h>
#include <limits.h>

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Data Structures
struct	opd_hashed_name
Defines
#define	OPD_IMAGE_FILTER_HASH_SIZE 32
Functions
void	opd_open_logfile (void)
static void	opd_fork (void)
static void	opd_go_daemon (void)
static void	opd_write_abi (void)
static void	opd_alarm (int val __attribute__((unused)))
static void	opd_sighup (int val __attribute__((unused)))
static void	opd_sigterm (int val __attribute__((unused)))
static void	opd_sigchild (int val __attribute__((unused)))
static void	opd_sigusr1 (int val __attribute__((unused)))
static void	opd_sigusr2 (int val __attribute__((unused)))
static void	opd_setup_signals (void)
static void	add_image_filter (char const *name)
static void	opd_parse_image_filter (void)
int	is_image_ignored (char const *name)
int	opd_read_fs_int (char const path, char const name, int fatal)
static void	opd_handle_verbose_option (char const *name)
static void	opd_parse_verbose (void)
static void	opd_options (int argc, char const *argv[])
static struct oprofiled_ops *	get_ops (void)
int	main (int argc, char const *argv[])
Variables
sig_atomic_t	signal_alarm
sig_atomic_t	signal_hup
sig_atomic_t	signal_term
sig_atomic_t	signal_child
sig_atomic_t	signal_usr1
sig_atomic_t	signal_usr2
uint	op_nr_counters
op_cpu	cpu_type
int	no_event_ok
int	vsfile
int	vsamples
	log samples, voluminous.
int	varcs
	log arc, very voluminous.
int	vmodule
	kernel module handling
int	vmisc
	all others not fitting in above category, not voluminous.
int	vext
	extended feature
int	separate_lib
int	separate_kernel
int	separate_thread
int	separate_cpu
int	no_vmlinux
char *	vmlinux
char *	kernel_range
char *	session_dir
int	no_xen
char *	xenimage
char *	xen_range
static char *	verbose
static char *	binary_name_filter
static char *	events
static char *	ext_feature
static int	showvers
static struct oprofiled_ops *	opd_ops
struct oprofiled_ops	opd_24_ops
struct oprofiled_ops	opd_26_ops
static struct list_head	images_filter [OPD_IMAGE_FILTER_HASH_SIZE]
static struct poptOption	options []

Detailed Description

Initialisation and setup

Remarks:: Copyright 2002, 2003 OProfile authors; Read the file COPYING

Author:: John Levon; Philippe Elie Modified by Aravind Menon for Xen These modifications are: Copyright (C) 2005 Hewlett-Packard Co.

Definition in file oprofiled.c.

Define Documentation

#define OPD_IMAGE_FILTER_HASH_SIZE 32

Definition at line 83 of file oprofiled.c.

Referenced by add_image_filter(), is_image_ignored(), and opd_parse_image_filter().

Function Documentation

static void add_image_filter ( char const * name ) [static]

Definition at line 285 of file oprofiled.c.

References images_filter, list_add(), opd_hashed_name::name, opd_hashed_name::next, op_hash_string(), OPD_IMAGE_FILTER_HASH_SIZE, verbprintf, and vmisc.

Referenced by opd_parse_image_filter().

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static struct oprofiled_ops* get_ops ( void ) [static, read]

Definition at line 477 of file oprofiled.c.

References oprofiled_ops::exit, op_get_interface(), OP_INTERFACE_24, OP_INTERFACE_26, opd_24_ops, and opd_26_ops.

Referenced by main().

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int is_image_ignored ( char const * name )

is_image_ignored - check if we must ignore this image

Parameters:

name

the name to check

Return true if the image should not be profiled

Definition at line 323 of file oprofiled.c.

References binary_name_filter, images_filter, list_entry, list_for_each, opd_hashed_name::name, opd_hashed_name::next, op_hash_string(), and OPD_IMAGE_FILTER_HASH_SIZE.

Referenced by create_cookie(), is_sf_ignored(), and opd_new_image().

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int main	(	int	argc,
		char const *	argv[]
	)

Definition at line 496 of file oprofiled.c.

References oprofiled_ops::exit, get_ops(), oprofiled_ops::init, init_op_config_dirs(), op_lock_file, op_write_lock_file(), opd_go_daemon(), opd_options(), opd_setup_signals(), opd_write_abi(), session_dir, and oprofiled_ops::start.

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static void opd_alarm ( int val __attribute__(unused) ) [static]

opd_alarm - sync files and report stats

Definition at line 178 of file oprofiled.c.

References signal_alarm.

Referenced by opd_setup_signals().

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static void opd_fork ( void ) [static]

opd_fork - fork and return as child

fork() and exit the parent with _exit(). Failure is fatal.

Definition at line 127 of file oprofiled.c.

Referenced by opd_go_daemon().

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static void opd_go_daemon ( void ) [static]

Definition at line 144 of file oprofiled.c.

References op_session_dir, and opd_fork().

Referenced by main().

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static void opd_handle_verbose_option ( char const * name ) [static]

Definition at line 353 of file oprofiled.c.

References varcs, vext, vmisc, vmodule, vsamples, and vsfile.

Referenced by opd_parse_verbose().

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void opd_open_logfile ( void )

opd_open_logfile - open the log file

Open the logfile on stdout and stderr. This function assumes that 1 and 2 are the lowest close()d file descriptors. Failure to open on either descriptor is a fatal error.

Definition at line 107 of file oprofiled.c.

References op_log_file.

Referenced by op_open_files(), opd_open_files(), and opd_sighup().

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static void opd_options	(	int	argc,
		char const *	argv[]
	)			`[static]`

Definition at line 398 of file oprofiled.c.

References events, ext_feature, kernel_range, no_event_ok, no_vmlinux, no_xen, op_get_cpu_type(), op_get_nr_counters(), op_nr_counters, op_poptGetContext(), opd_ext_initialize(), opd_parse_events(), opd_parse_image_filter(), opd_parse_verbose(), optcon, options, separate_kernel, separate_lib, show_version(), showvers, vmlinux, xen_range, and xenimage.

Referenced by main().

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static void opd_parse_image_filter ( void ) [static]

Definition at line 301 of file oprofiled.c.

References add_image_filter(), binary_name_filter, images_filter, list_init(), op_xstrndup(), and OPD_IMAGE_FILTER_HASH_SIZE.

Referenced by opd_options().

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static void opd_parse_verbose ( void ) [static]

Definition at line 380 of file oprofiled.c.

References op_xstrndup(), and opd_handle_verbose_option().

Referenced by opd_options().

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int opd_read_fs_int	(	char const *	path,
		char const *	name,
		int	fatal
	)

return the int in the given oprofilefs file

Definition at line 345 of file oprofiled.c.

References filename, and op_read_int_from_file().

Referenced by opd_24_init(), opd_26_init(), opd_print_24_stats(), and print_if().

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static void opd_setup_signals ( void ) [static]

Definition at line 214 of file oprofiled.c.

References opd_alarm(), opd_sigchild(), opd_sighup(), opd_sigterm(), opd_sigusr1(), and opd_sigusr2().

Referenced by main().

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static void opd_sigchild ( int val __attribute__(unused) ) [static]

Definition at line 196 of file oprofiled.c.

References signal_child.

Referenced by opd_setup_signals().

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static void opd_sighup ( int val __attribute__(unused) ) [static]

Definition at line 185 of file oprofiled.c.

References signal_hup.

Referenced by opd_setup_signals().

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static void opd_sigterm ( int val __attribute__(unused) ) [static]

Definition at line 191 of file oprofiled.c.

References signal_term.

Referenced by opd_setup_signals().

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static void opd_sigusr1 ( int val __attribute__(unused) ) [static]

Definition at line 202 of file oprofiled.c.

References signal_usr1.

Referenced by opd_setup_signals().

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static void opd_sigusr2 ( int val __attribute__(unused) ) [static]

Definition at line 208 of file oprofiled.c.

References signal_usr2.

Referenced by opd_setup_signals().

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static void opd_write_abi ( void ) [static]

Definition at line 163 of file oprofiled.c.

References op_session_dir, and op_write_abi_to_file().

Referenced by main().

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Variable Documentation

char* binary_name_filter [static]

Definition at line 75 of file oprofiled.c.

Referenced by is_image_ignored(), and opd_parse_image_filter().

op_cpu cpu_type

Definition at line 55 of file oprofiled.c.

char* events [static]

Definition at line 76 of file oprofiled.c.

Referenced by oprof_start::alloc_selected_events(), oprof_start::fill_events(), main(), and opd_options().

char* ext_feature [static]

Definition at line 77 of file oprofiled.c.

Referenced by opd_options().

struct list_head images_filter[OPD_IMAGE_FILTER_HASH_SIZE] [static]

Definition at line 84 of file oprofiled.c.

Referenced by add_image_filter(), is_image_ignored(), and opd_parse_image_filter().

char* kernel_range

Definition at line 69 of file oprofiled.c.

Referenced by opd_24_init(), opd_26_init(), and opd_options().

int no_event_ok

Definition at line 56 of file oprofiled.c.

Referenced by ibs_init(), and opd_options().

int no_vmlinux

Definition at line 67 of file oprofiled.c.

Referenced by __handle_mmap_event(), _process_vmlinux(), find_kernel_image(), opd_24_init(), opd_create_vmlinux(), opd_handle_kernel_sample(), opd_options(), opd_put_sample(), opd_reread_module_info(), operf_create_vmlinux(), operf_find_kernel_image(), and process_args().

int no_xen

Definition at line 71 of file oprofiled.c.

Referenced by opd_create_xen(), and opd_options().

uint op_nr_counters

Definition at line 54 of file oprofiled.c.

Referenced by close_sfile(), create_sfile(), find_counter_event(), get_file(), opd_close_image_samples_files(), opd_options(), opd_parse_events(), operf_sfile_dup(), process_args(), sfile_dup(), and sync_sfile().

struct oprofiled_ops opd_24_ops

Definition at line 383 of file init.c.

Referenced by get_ops().

struct oprofiled_ops opd_26_ops

Definition at line 368 of file init.c.

Referenced by get_ops().

struct oprofiled_ops* opd_ops [static]

Definition at line 79 of file oprofiled.c.

struct poptOption options[] [static]

Initial value:

 {
    { "session-dir", 0, POPT_ARG_STRING, &session_dir, 0, "place sample database in dir instead of default location", "/var/lib/oprofile", },
    { "kernel-range", 'r', POPT_ARG_STRING, &kernel_range, 0, "Kernel VMA range", "start-end", },
    { "vmlinux", 'k', POPT_ARG_STRING, &vmlinux, 0, "vmlinux kernel image", "file", },
    { "no-vmlinux", 0, POPT_ARG_NONE, &no_vmlinux, 0, "vmlinux kernel image file not available", NULL, },
    { "xen-range", 0, POPT_ARG_STRING, &xen_range, 0, "Xen VMA range", "start-end", },
    { "xen-image", 0, POPT_ARG_STRING, &xenimage, 0, "Xen image", "file", },
    { "image", 0, POPT_ARG_STRING, &binary_name_filter, 0, "image name filter", "profile these comma separated image" },
    { "separate-lib", 0, POPT_ARG_INT, &separate_lib, 0, "separate library samples for each distinct application", "[0|1]", },
    { "separate-kernel", 0, POPT_ARG_INT, &separate_kernel, 0, "separate kernel samples for each distinct application", "[0|1]", },
    { "separate-thread", 0, POPT_ARG_INT, &separate_thread, 0, "thread-profiling mode", "[0|1]" },
    { "separate-cpu", 0, POPT_ARG_INT, &separate_cpu, 0, "separate samples for each CPU", "[0|1]" },
    { "events", 'e', POPT_ARG_STRING, &events, 0, "events list", "[events]" },
    { "version", 'v', POPT_ARG_NONE, &showvers, 0, "show version", NULL, },
    { "verbose", 'V', POPT_ARG_STRING, &verbose, 0, "be verbose in log file", "all,sfile,arcs,samples,module,misc", },
    { "ext-feature", 'x', POPT_ARG_STRING, &ext_feature, 1, "enable extended feature", "<extended-feature-name>:[args]", },
    POPT_AUTOHELP
    { NULL, 0, 0, NULL, 0, NULL, NULL, },
}

Definition at line 86 of file oprofiled.c.

Referenced by handle_merge_option(), handle_options(), opd_options(), and popt::parse_options().

int separate_cpu

Definition at line 66 of file oprofiled.c.

Referenced by _process_operf_and_app_args(), create_sfile(), do_match(), mangle_filename(), opd_do_samples(), opd_mangle_filename(), sfile_hash(), and start_profiling().

int separate_kernel

Definition at line 64 of file oprofiled.c.

Referenced by create_sfile(), do_match(), get_dep_name(), opd_options(), opd_put_sample(), and sfile_hash().

int separate_lib

Definition at line 63 of file oprofiled.c.

Referenced by create_sfile(), do_match(), get_dep_name(), is_same_image(), opd_mangle_filename(), opd_new_image(), opd_options(), and sfile_hash().

int separate_thread

Definition at line 65 of file oprofiled.c.

Referenced by _process_operf_and_app_args(), create_sfile(), do_match(), is_same_image(), mangle_filename(), opd_handle_fork(), opd_hash_image(), opd_mangle_filename(), and sfile_hash().

char* session_dir

Definition at line 70 of file oprofiled.c.

int showvers [static]

Definition at line 78 of file oprofiled.c.

Referenced by opd_options().

sig_atomic_t signal_alarm

global variable positioned by signal handler

Definition at line 47 of file oprofiled.c.

Referenced by opd_alarm(), and opd_do_read().

sig_atomic_t signal_child

Definition at line 50 of file oprofiled.c.

Referenced by opd_do_read(), and opd_sigchild().

sig_atomic_t signal_hup

Definition at line 48 of file oprofiled.c.

Referenced by opd_do_read(), and opd_sighup().

sig_atomic_t signal_term

Definition at line 49 of file oprofiled.c.

Referenced by opd_do_read(), and opd_sigterm().

sig_atomic_t signal_usr1

Definition at line 51 of file oprofiled.c.

Referenced by opd_do_read(), and opd_sigusr1().

sig_atomic_t signal_usr2

Definition at line 52 of file oprofiled.c.

Referenced by opd_do_read(), and opd_sigusr2().

int varcs

log arc, very voluminous.

named "arcs"

Definition at line 59 of file oprofiled.c.

char* verbose [static]

Definition at line 74 of file oprofiled.c.

int vext

extended feature

Definition at line 62 of file oprofiled.c.

Referenced by code_ibs_fetch_sample(), code_ibs_op_sample(), get_ibs_op_bta_sample(), ibs_init(), and opd_handle_verbose_option().

int vmisc

all others not fitting in above category, not voluminous.

Definition at line 61 of file oprofiled.c.

char* vmlinux

Definition at line 68 of file oprofiled.c.

Referenced by opd_26_exit(), opd_26_init(), opd_add_kernel_map(), opd_init_kernel_image(), and opd_options().

int vmodule

kernel module handling

Definition at line 60 of file oprofiled.c.

Referenced by code_module_loaded(), opd_add_kernel_map(), opd_clear_module_info(), opd_drop_module_sample(), opd_get_module_info(), opd_handle_module_sample(), opd_handle_verbose_option(), and opd_reread_module_info().

int vsamples

log samples, voluminous.

Definition at line 58 of file oprofiled.c.

Referenced by code_ibs_fetch_sample(), code_ibs_op_sample(), opd_do_samples(), opd_handle_verbose_option(), opd_put_sample(), sfile_find(), sfile_log_sample_count(), and verb_show_sample().

int vsfile

log all sample file name manipulation; sample files open, close, sfile LRU etc. voluminous. FIXME need to be splitted (filename manip, files handling) ?

Definition at line 57 of file oprofiled.c.

char* xen_range

Definition at line 73 of file oprofiled.c.

Referenced by opd_26_init(), and opd_options().

char* xenimage

Definition at line 72 of file oprofiled.c.

Referenced by opd_26_init(), and opd_options().

oprofiled.c File Reference

Data Structures

Defines

Functions

Variables

Detailed Description

Define Documentation

Function Documentation

Variable Documentation