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7f0e93060e
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>
65 lines
1.4 KiB
C
65 lines
1.4 KiB
C
/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2009 coresystems GmbH
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; version 2 of
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* the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
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* MA 02110-1301 USA
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*/
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#include <string.h>
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#include <smp/spinlock.h>
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#include <console/vtxprintf.h>
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#include <trace.h>
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DECLARE_SPIN_LOCK(vsprintf_lock)
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static char *str_buf;
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static void str_tx_byte(unsigned char byte)
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{
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*str_buf = byte;
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str_buf++;
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}
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static int vsprintf(char *buf, const char *fmt, va_list args)
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{
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int i;
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DISABLE_TRACE;
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spin_lock(&vsprintf_lock);
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str_buf = buf;
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i = vtxprintf(str_tx_byte, fmt, args);
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*str_buf = '\0';
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spin_unlock(&vsprintf_lock);
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ENABLE_TRACE;
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return i;
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}
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int sprintf(char *buf, const char *fmt, ...)
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{
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va_list args;
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int i;
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va_start(args, fmt);
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i = vsprintf(buf, fmt, args);
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va_end(args);
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return i;
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}
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