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coreboot-kgpe-d16/src/include/trace.h

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Add support for the tracing infastructure in coreboot. The compiler is forced to emmit special functions on every entry/exit of the function. Add a compile time option to support it. Function entries will be printed in the console. The CONFIG_TRACE has more documentation. Patch for userspace tools will follow. Change-Id: I2cbeb3f104892b034c8756f86ed05bf71187c3f3 Signed-off-by: Rudolf Marek <r.marek@assembler.cz> Reviewed-on: http://review.coreboot.org/178 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2011-09-02 23:23:41 +02:00
/*
* This file is part of the coreboot project.
*
* Copyright (C) 2011 Rudolf Marek <r.marek@assembler.cz>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program 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 General Public License for more details.
*/
#ifndef __TRACE_H
#define __TRACE_H
#ifdef __PRE_RAM__
#define DISABLE_TRACE
#define ENABLE_TRACE
#define DISABLE_TRACE_ON_FUNCTION
#else /* !__PRE_RAM__ */
Fix tracing compilation on SMM enabled targets. Disallow tracing while in SMM. Change-Id: Icde17629bb06a615cc48f017fd0cd1f7b720e62d Signed-off-by: Rudolf Marek <r.marek@assembler.cz> Reviewed-on: http://review.coreboot.org/1503 Tested-by: build bot (Jenkins) Reviewed-by: Marc Jones <marcj303@gmail.com>
2012-09-11 15:06:17 +02:00
#if CONFIG_TRACE && !defined(__SMM__)
Add support for the tracing infastructure in coreboot. The compiler is forced to emmit special functions on every entry/exit of the function. Add a compile time option to support it. Function entries will be printed in the console. The CONFIG_TRACE has more documentation. Patch for userspace tools will follow. Change-Id: I2cbeb3f104892b034c8756f86ed05bf71187c3f3 Signed-off-by: Rudolf Marek <r.marek@assembler.cz> Reviewed-on: http://review.coreboot.org/178 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2011-09-02 23:23:41 +02:00
void __cyg_profile_func_enter( void *, void * )
__attribute__ ((no_instrument_function));
void __cyg_profile_func_exit( void *, void * )
__attribute__ ((no_instrument_function));
extern volatile int trace_dis;
#define DISABLE_TRACE do { trace_dis = 1; } while (0);
#define ENABLE_TRACE do { trace_dis = 0; } while (0);
#define DISABLE_TRACE_ON_FUNCTION __attribute__ ((no_instrument_function));
#else /* !CONFIG_TRACE */
#define DISABLE_TRACE
#define ENABLE_TRACE
#define DISABLE_TRACE_ON_FUNCTION
#endif
#endif
#endif