/*

 * pfmlib_os_linux_v3.c: Perfmon3 API syscalls

 *

 * Copyright (c) 2008 Google, Inc

 * Contributed by Stephane Eranian <eranian@gmail.com>

 *

 * Permission is hereby granted, free of charge, to any person obtaining a copy

 * of this software and associated documentation files (the "Software"), to deal

 * in the Software without restriction, including without limitation the rights

 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies

 * of the Software, and to permit persons to whom the Software is furnished to do so,

 * subject to the following conditions:

 *

 * The above copyright notice and this permission notice shall be included in all

 * copies or substantial portions of the Software.

 *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,

 * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A

 * PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT

 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF

 * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE

 * OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

 */

#ifndef _GNU_SOURCE

#define _GNU_SOURCE /* for getline */

#endif

#include <sys/types.h>

#include <stdint.h>

#include <stdarg.h>

#include <stdlib.h>

#include <unistd.h>

#include <errno.h>

#include <syscall.h>

#include <perfmon/perfmon.h>

#include <perfmon/pfmlib.h>

#include "pfmlib_priv.h"

/*

 * v3.x interface

 */

#define PFM_pfm_create			(_pfmlib_get_sys_base()+0)

#define PFM_pfm_write			(_pfmlib_get_sys_base()+1)

#define PFM_pfm_read			(_pfmlib_get_sys_base()+2)

#define PFM_pfm_attach			(_pfmlib_get_sys_base()+3)

#define PFM_pfm_set_state		(_pfmlib_get_sys_base()+4)

#define PFM_pfm_create_sets		(_pfmlib_get_sys_base()+5)

#define PFM_pfm_getinfo_sets		(_pfmlib_get_sys_base()+6)

/*

 * perfmon v3 interface

 */

int

//pfm_create(int flags, pfarg_sinfo_t *sif, char *name, void *smpl_arg, size_t smpl_size)

pfm_create(int flags, pfarg_sinfo_t *sif, ...)

{

	va_list ap;

	char *name = NULL;

	void *smpl_arg = NULL;

	size_t smpl_size = 0;

	int ret;

	if (_pfmlib_major_version < 3) {

		errno = ENOSYS;

		return -1;

	}

	if (flags & PFM_FL_SMPL_FMT)

		va_start(ap, sif);

	if (flags & PFM_FL_SMPL_FMT) {

		name = va_arg(ap, char *);

		smpl_arg = va_arg(ap, void *);

		smpl_size = va_arg(ap, size_t);

	}

	ret = (int)syscall(PFM_pfm_create, flags, sif, name, smpl_arg, smpl_size);

	if (flags & PFM_FL_SMPL_FMT)

		va_end(ap);

	return ret;

}

int

pfm_write(int fd, int flags, int type, void *pms, size_t sz)

{

	if (_pfmlib_major_version < 3)

		return -ENOSYS;

	return (int)syscall(PFM_pfm_write, fd, flags, type, pms, sz);

}

int

pfm_read(int fd, int flags, int type, void *pms, size_t sz)

{

	if (_pfmlib_major_version < 3)

		return -ENOSYS;

	return (int)syscall(PFM_pfm_read, fd, flags, type, pms, sz);

}

int

pfm_create_sets(int fd, int flags, pfarg_set_desc_t *setd, size_t sz)

{

	if (_pfmlib_major_version < 3)

		return -ENOSYS;

	return (int)syscall(PFM_pfm_create_sets, fd, flags, setd, sz);

}

int

pfm_getinfo_sets(int fd, int flags, pfarg_set_info_t *info, size_t sz)

{

	if (_pfmlib_major_version < 3)

		return -ENOSYS;

	return (int)syscall(PFM_pfm_getinfo_sets, fd, flags, info, sz);

}

int

pfm_attach(int fd, int flags, int target)

{

	if (_pfmlib_major_version < 3)

		return -ENOSYS;

	return (int)syscall(PFM_pfm_attach, fd, flags, target);

}

int

pfm_set_state(int fd, int flags, int state)

{

	if (_pfmlib_major_version < 3)

		return -ENOSYS;

	return (int)syscall(PFM_pfm_set_state, fd, flags, state);

}