mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-29 08:11:08 +00:00
11c981a96d
* gmon: New directory of profiling code, incorporated from 4.4BSD-Lite and modified. * sysdeps/i386/machine-gmon.h: New file. * sysdeps/stub/machine-gmon.h: New file. * sysdeps/mach/hurd/profil.c: New file. * sysdeps/stub/profil.c: New file. * sysdeps/unix/bsd/profil.S: New file. * Makefile (subdirs): Add gmon. * csu/gmon-start.c: New file. * csu/Makefile (extra-objs): Add gmon-start.o, g$(start-installed-name). (install-lib, omit-deps): Add g$(start-installed-name). ($(objpfx)g$(start-installed-name)): New target.
48 lines
1.7 KiB
C
48 lines
1.7 KiB
C
/* Code to enable profiling at program startup.
|
|
Copyright (C) 1995 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Library General Public License as
|
|
published by the Free Software Foundation; either version 2 of the
|
|
License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Library General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Library General Public
|
|
License along with the GNU C Library; see the file COPYING.LIB. If
|
|
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
|
|
Cambridge, MA 02139, USA. */
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/gmon.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
|
|
/* Beginning and end of our code segment. */
|
|
extern void _start (), etext ();
|
|
|
|
/* These functions are defined in gmon/gmon.c;
|
|
they do all the work of setting up and cleaning up profiling. */
|
|
extern void monstartup (u_long, u_long);
|
|
extern void _mcleanup (void);
|
|
|
|
/* This function gets called at startup by the normal constructor
|
|
mechanism. We link this file together with start.o to produce gcrt1.o,
|
|
so this constructor will be first in the list. */
|
|
static void gmon_start (void) __attribute__ ((constructor));
|
|
static void
|
|
gmon_start (void)
|
|
{
|
|
/* Start keeping profiling records. */
|
|
monstartup ((u_long) &_start, (u_long) &etext);
|
|
|
|
/* Call _mcleanup before exitting; it will write out gmon.out from the
|
|
collected data. */
|
|
atexit (&_mcleanup);
|
|
}
|
|
|