mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-13 00:30:07 +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.
41 lines
1.5 KiB
C
41 lines
1.5 KiB
C
/* Low-level statistical profiling support function. Stub version.
|
|
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 <unistd.h>
|
|
#include <errno.h>
|
|
|
|
/* Enable statistical profiling, writing samples of the PC into at most
|
|
SIZE bytes of SAMPLE_BUFFER; every processor clock tick while profiling
|
|
is enabled, the system examines the user PC and increments
|
|
SAMPLE_BUFFER[((PC - OFFSET) / 2) * SCALE / 65536]. If SCALE is zero,
|
|
disable profiling. Returns zero on success, -1 on error. */
|
|
|
|
int
|
|
profil (u_short *sample_buffer, size_t size, size_t offset, u_int scale)
|
|
{
|
|
if (scale == 0)
|
|
/* Disable profiling. */
|
|
return 0;
|
|
|
|
errno = ENOSYS;
|
|
return -1;
|
|
}
|
|
stub_warning (profil)
|