6c8f7fc3ba
. add all sys/sys headers not already present to help compiling . take netbsd dirent.h and struct dirent; main result is introducing d_type and d_namlen that have to be set by getdents() in all FS code implementing it . d_off is gone . alignment of the struct has become 8 bytes instead of 4 . remove _MAX_BLOCK_SIZE, _MIN_BLOCK_SIZE, _STATIC_BLOCK_SIZE . libminlib: cleanup unused yet duplicate code . mfs: throw out the long-broken v1, v2 support . new test for dirent contents filled by getdents() Change-Id: I1459755c7ba5e5d1c9396d3a587ce6e63ddc283e
148 lines
4.7 KiB
C
148 lines
4.7 KiB
C
/* $NetBSD: syscall_stats.h,v 1.4 2008/11/12 12:36:28 ad Exp $ */
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/*-
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* Copyright (c) 2007 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by David Laight.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _SYS_SYCALL_STAT_H_
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#define _SYS_SYCALL_STAT_H_
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#ifdef _KERNEL_OPT
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#include "opt_syscall_stats.h"
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#endif
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#ifdef SYSCALL_STATS
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#include <sys/syscall.h>
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extern uint64_t syscall_counts[SYS_NSYSENT];
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extern uint64_t syscall_count_user, syscall_count_system, syscall_count_interrupt;
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#define SYSCALL_COUNT(table, code) ((table)[code]++)
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#if defined(SYSCALL_TIMES) && defined(__HAVE_CPU_COUNTER)
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#include <machine/cpu_counter.h>
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extern uint64_t syscall_times[SYS_NSYSENT];
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#ifdef SYSCALL_TIMES_HASCOUNTER
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/* Force use of cycle counter - needed for Soekris systems */
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#define SYSCALL_TIME() (cpu_counter32())
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#else
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#define SYSCALL_TIME() (cpu_hascounter() ? cpu_counter32() : 0u)
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#endif
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#ifdef SYSCALL_TIMES_PROCTIMES
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#define SYSCALL_TIME_UPDATE_PROC(l, fld, delta) \
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(l)->l_proc->p_##fld##ticks += (delta)
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#else
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#define SYSCALL_TIME_UPDATE_PROC(l, fld, delta)
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#endif
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/* lwp creation */
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#define SYSCALL_TIME_LWP_INIT(l) do { \
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(l)->l_syscall_counter = &syscall_count_system; \
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SYSCALL_TIME_WAKEUP(l); \
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} while (0)
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/* System call entry hook */
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#define SYSCALL_TIME_SYS_ENTRY(l, table, code) do { \
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uint32_t now = SYSCALL_TIME(); \
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SYSCALL_TIME_UPDATE_PROC(l, u, elapsed = now - (l)->l_syscall_time); \
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(l)->l_syscall_counter = (table) + (code); \
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(l)->l_syscall_time = now; \
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} while (0)
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/* System call - process sleep */
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#define SYSCALL_TIME_SLEEP(l) do { \
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uint32_t now = SYSCALL_TIME(); \
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uint32_t elapsed = now - (l)->l_syscall_time; \
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(l)->l_syscall_time = now; \
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*(l)->l_syscall_counter += elapsed; \
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SYSCALL_TIME_UPDATE_PROC(l, s, elapsed); \
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} while (0)
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/* Process wakeup */
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#define SYSCALL_TIME_WAKEUP(l) \
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(l)->l_syscall_time = SYSCALL_TIME()
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/* System call exit */
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#define SYSCALL_TIME_SYS_EXIT(l) do { \
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uint32_t now = SYSCALL_TIME(); \
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uint32_t elapsed = now - (l)->l_syscall_time; \
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(l)->l_syscall_time = now; \
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*(l)->l_syscall_counter += elapsed; \
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(l)->l_syscall_counter = &syscall_count_user; \
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SYSCALL_TIME_UPDATE_PROC(l, s, elapsed); \
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} while (0)
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#ifdef _notyet
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/* Interrupt entry hook */
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#define SYSCALL_TIME_ISR_ENTRY(l, old) do { \
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uint32_t now = SYSCALL_TIME(); \
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uint32_t elapsed = now - (l)->l_syscall_time; \
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(l)->l_syscall_time = now; \
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old = (l)->l_syscall_counter; \
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if ((l)->l_syscall_counter != &syscall_count_interrupt) \
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if ((l)->l_syscall_counter == &syscall_count_user) \
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SYSCALL_TIME_UPDATE_PROC(l, u, elapsed); \
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else { \
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*(l)->l_syscall_counter += elapsed; \
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SYSCALL_TIME_UPDATE_PROC(l, s, elapsed); \
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} \
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(l)->l_syscall_counter = &syscall_count_interrupt; \
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} \
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} while (0)
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/* Interrupt exit hook */
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#define SYSCALL_TIME_ISR_EXIT(l, saved) do { \
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uint32_t now = SYSCALL_TIME(); \
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SYSCALL_TIME_UPDATE_PROC(l, i, now - (l)->l_syscall_time); \
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(l)->l_syscall_time = now; \
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(l)->l_syscall_counter = saved; \
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} while (0)
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#endif
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#endif
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#endif
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#ifndef SYSCALL_TIME_SYS_ENTRY
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#define SYSCALL_TIME_LWP_INIT(l)
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#define SYSCALL_TIME_SYS_ENTRY(l,table,code)
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#define SYSCALL_TIME_SLEEP(l)
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#define SYSCALL_TIME_WAKEUP(l)
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#define SYSCALL_TIME_SYS_EXIT(l)
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#define SYSCALL_TIME_ISR_ENTRY(l,old)
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#define SYSCALL_TIME_ISR_EXIT(l,saved)
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#undef SYSCALL_TIMES
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#endif
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#ifndef SYSCALL_COUNT
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#define SYSCALL_COUNT(table, code)
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#endif
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#endif /* !_SYS_SYCALL_STAT_H_ */
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