prof.c File Reference

#include <stdlib.h>
#include <malloc.h>
#include <stdio.h>
#include <string.h>
#include <pspthreadman.h>

Include dependency graph for prof.c:

Data Structures
struct	gmonhdr
	gmon.out file header More...
struct	rawarc
	frompc -> selfpc graph More...
struct	gmonparam
	context More...
Defines
#define	GMON_PROF_ON   0
#define	GMON_PROF_BUSY   1
#define	GMON_PROF_ERROR   2
#define	GMON_PROF_OFF   3
#define	GMONVERSION   0x00051879
#define	HISTFRACTION   4
	one histogram per four bytes of text space
#define	SAMPLE_FREQ   1000
	define sample frequency - 1000 hz = 1ms
Functions
void	gprof_cleanup ()
	Writes gmon.out dump file and stops profiling.
void	__mcount (unsigned int frompc, unsigned int selfpc)
	Internal C handler for _mcount().
Variables
int	_ftext
	defined by linker
int	_etext

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Define Documentation

#define GMON_PROF_BUSY   1

#define GMON_PROF_ERROR   2

#define GMON_PROF_OFF   3

#define GMON_PROF_ON   0

Referenced by __mcount(), and gprof_cleanup().

#define GMONVERSION   0x00051879

#define HISTFRACTION   4

one histogram per four bytes of text space

#define SAMPLE_FREQ   1000

define sample frequency - 1000 hz = 1ms

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Function Documentation

void __mcount	(	unsigned int	frompc,
		unsigned int	selfpc
	)

Internal C handler for _mcount().

Parameters:

	frompc	pc address of caller
	selfpc	pc address of current function

Called from mcount.S to make life a bit easier. __mcount is called right before a function starts. GCC generates a tiny stub at the very beginning of each compiled routine, which eventually brings the control to here.

References rawarc::count, rawarc::frompc, GMON_PROF_ON, gp, and rawarc::selfpc.

void gprof_cleanup

(

)

Writes gmon.out dump file and stops profiling.

Called from atexit() handler; will dump out a host:gmon.out file with all collected information.

References fclose(), fopen(), fwrite(), GMON_PROF_ON, gp, gmonhdr::hpc, i, gmonhdr::lpc, gmonhdr::ncnt, gmonhdr::profrate, gmonhdr::resv, sceKernelStopVTimer(), and gmonhdr::version.

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Variable Documentation

int _etext

int _ftext

defined by linker