mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-17 10:30:20 +00:00
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)
|