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https://github.com/opnsense/src.git
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89a9852f32
stand/common: Add file_addbuf() libsa: Add support for timestamp logging (tslog) stand/common: Add support for timestamp logging (tslog) i386/loader: Call tslog_init efi/loader: Call tslog_init (+ bugfix) stand/common command_boot: Pass tslog to kernel kern_tslog: Include tslog data from loader loader: Use tslog to instrument some functions Add userland boot profiling to TSLOG (+ bugfix) Sponsored by: https://www.patreon.com/cperciva (cherry picked from commit60a978bec9) (cherry picked from commite193d3ba33) (cherry picked from commitc8dfc327db) (cherry picked from commitc4b65e954f) (cherry picked from commitf49381ccb6) (cherry picked from commit537a44bf28) (cherry picked from commitfe51b5a76d) (cherry picked from commit313724bab9) (cherry picked from commit46dd801acb) (cherry picked from commit52e125c2bd) (cherry picked from commit19e4f2f289)
81 lines
2.6 KiB
C
81 lines
2.6 KiB
C
/*-
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* Copyright (c) 2021 Colin Percival
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* All rights reserved.
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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 AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/types.h>
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#include <stand.h>
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#include "bootstrap.h"
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/* Buffer for holding tslog data in string format. */
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#ifndef LOADER_TSLOGSIZE
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#define LOADER_TSLOGSIZE (2 * 1024 * 1024)
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#endif
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int
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tslog_init(void)
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{
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void * tslog_buf;
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/* Allocate buffer and pass to libsa tslog code. */
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if ((tslog_buf = malloc(LOADER_TSLOGSIZE)) == NULL)
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return (-1);
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tslog_setbuf(tslog_buf, LOADER_TSLOGSIZE);
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/* Record this as when we entered the loader. */
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TSRAW("ENTER", "loader", NULL);
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return (0);
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}
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/*
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* Pass our tslog buffer as a preloaded "module" to the kernel. This should
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* be called as late as possible prior to the kernel being executed, since
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* any timestamps logged after this is called will not be visible to the
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* kernel.
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*/
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int
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tslog_publish(void)
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{
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void * tslog_buf;
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size_t tslog_bufpos;
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/* Record a log entry for ending logging. */
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TSRAW("EXIT", "loader", NULL);
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/* Get the buffer and its current length. */
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tslog_getbuf(&tslog_buf, &tslog_bufpos);
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/* If we never allocated a buffer, return an error. */
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if (tslog_buf == NULL)
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return (-1);
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/* Store the buffer where the kernel can read it. */
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return (file_addbuf("TSLOG", "TSLOG data", tslog_bufpos, tslog_buf));
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}
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