operf.cpp File Reference

Front-end (containing main) for handling a user request to run a profile using the new Linux Performance Events Subsystem. More...

#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <getopt.h>
#include <dirent.h>
#include <exception>
#include <pwd.h>
#include <errno.h>
#include <sys/time.h>
#include <string.h>
#include <unistd.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <fcntl.h>
#include <sys/wait.h>
#include <ftw.h>
#include <iostream>
#include "operf_utils.h"
#include "op_libiberty.h"
#include "string_manip.h"
#include "cverb.h"
#include "operf_counter.h"
#include "op_cpu_type.h"
#include "op_cpufreq.h"
#include "op_events.h"
#include "op_string.h"
#include "operf_kernel.h"
#include "child_reader.h"
#include "op_get_time.h"

Include dependency graph for operf.cpp:

Namespaces
namespace	operf_options
Defines
#define	DEFAULT_OPERF_OUTFILE "operf.data"
#define	CALLGRAPH_MIN_COUNT_SCALE 15
#define	NUM_VERBOSE_OPTIONS (sizeof(valid_verbose_vals)/sizeof(char *))
#define	_OP_UM 1
#define	_OP_KERNEL 2
#define	_OP_USER 3
Typedefs
typedef enum END_CODE	end_code_t
Enumerations
enum	END_CODE { ALL_OK = 0, APP_ABNORMAL_END = 1, PERF_RECORD_ERROR = 2, PERF_READ_ERROR = 4, PERF_BOTH_ERROR = 8 }
Functions
void	_set_signals_for_record (void)
void	set_signals (void)
void	run_app (void)
int	start_profiling (void)
int	validate_app_name (void)
bool	_get_vmlinux_address_info (vector< string > args, string cmp_val, string &str)
string	_process_vmlinux (string vmlinux_file)
int	main (int argc, char *const argv[])
Variables
char *	app_name = NULL
pid_t	app_PID = -1
uint64_t	kernel_start
uint64_t	kernel_end
operf_read	operfRead
op_cpu	cpu_type
double	cpu_speed
char	op_samples_current_dir [PATH_MAX]
uint	op_nr_counters
verbose	vmisc ("misc")
	all others not fitting in above category, not voluminous.
uid_t	my_uid
bool	no_vmlinux
int	kptr_restrict
char *	start_time_human_readable
bool	operf_options::append
bool	operf_options::callgraph
string	operf_options::vmlinux
bool	operf_options::post_conversion
vector< string >	operf_options::evts
struct option	long_options []
const char *	short_options = "V:d:k:gsap:e:ctlhuv"
vector< string >	verbose_string

Detailed Description

Front-end (containing main) for handling a user request to run a profile using the new Linux Performance Events Subsystem.

Remarks:: Copyright 2011 OProfile authors; Read the file COPYING

Created on: Dec 7, 2011

Author:: Maynard Johnson (C) Copyright IBM Corp. 2011

Modified by Maynard Johnson <maynardj@us.ibm.com> (C) Copyright IBM Corporation 2012

Define Documentation

#define _OP_KERNEL 2

#define _OP_UM 1

#define _OP_USER 3

#define CALLGRAPH_MIN_COUNT_SCALE 15

#define DEFAULT_OPERF_OUTFILE "operf.data"

#define NUM_VERBOSE_OPTIONS (sizeof(valid_verbose_vals)/sizeof(char *))

Typedef Documentation

typedef enum END_CODE end_code_t

Enumeration Type Documentation

enum END_CODE

Enumerator:

ALL_OK
APP_ABNORMAL_END
PERF_RECORD_ERROR
PERF_READ_ERROR
PERF_BOTH_ERROR

Function Documentation

bool _get_vmlinux_address_info	(	vector< string >	args,
		string	cmp_val,
		string &	str
	)

References child_reader::error(), child_reader::error_str(), child_reader::get_data(), child_reader::getline(), and child_reader::terminate_process().

Referenced by _process_vmlinux().

string _process_vmlinux ( string vmlinux_file )

References _get_vmlinux_address_info(), cverb, kernel_end, kernel_start, no_vmlinux, and vmisc.

void _set_signals_for_record ( void )

Referenced by start_profiling().

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

References APP_ABNORMAL_END, app_PID, operf_options::append, CPU_NO_GOOD, cpu_speed, cpu_type, cverb, kptr_restrict, my_uid, op_cpu_frequency(), op_get_cpu_type(), PERF_BOTH_ERROR, PERF_READ_ERROR, PERF_RECORD_ERROR, operf_options::post_conversion, operf_options::system_wide, throttled, and vdebug.

void run_app ( void )

References app_name, cverb, and vdebug.

Referenced by start_profiling().

void set_signals ( void )

int validate_app_name ( void )

References app_name, and OP_APPNAME_LEN.

Variable Documentation

char* app_name = NULL

Referenced by opd_add_kernel_map(), run_app(), and validate_app_name().

pid_t app_PID = -1

Referenced by main(), and start_profiling().

double cpu_speed

Referenced by main(), and oprof_start::oprof_start().

op_cpu cpu_type

Referenced by fill_header(), main(), oprof_start::on_start_profiler(), op_get_cpu_number(), op_get_cpu_type(), opd_parse_events(), and open_xml_events().

uint64_t kernel_end

Referenced by _process_vmlinux(), opd_add_kernel_map(), opd_handle_kernel_sample(), opd_parse_kernel_range(), operf_record::recordPerfData(), and start_profiling().

uint64_t kernel_start

Referenced by _process_vmlinux(), opd_add_kernel_map(), opd_eip_is_kernel(), opd_handle_kernel_sample(), opd_parse_kernel_range(), operf_record::recordPerfData(), and start_profiling().

int kptr_restrict

Referenced by main().

struct option long_options[]

Initial value:

{
 {"verbose", required_argument, NULL, 'V'},
 {"session-dir", required_argument, NULL, 'd'},
 {"vmlinux", required_argument, NULL, 'k'},
 {"callgraph", no_argument, NULL, 'g'},
 {"system-wide", no_argument, NULL, 's'},
 {"append", no_argument, NULL, 'a'},
 {"pid", required_argument, NULL, 'p'},
 {"events", required_argument, NULL, 'e'},
 {"separate-cpu", no_argument, NULL, 'c'},
 {"separate-thread", no_argument, NULL, 't'},
 {"lazy-conversion", no_argument, NULL, 'l'},
 {"help", no_argument, NULL, 'h'},
 {"version", no_argument, NULL, 'v'},
 {"usage", no_argument, NULL, 'u'},
 {NULL, 9, NULL, 0}
}