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https://github.com/ARM-software/arm-trusted-firmware.git
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b79af93445
This patch implements a "tf_printf" which supports only the commonly used format specifiers in Trusted Firmware, which uses a lot less stack space than the stdlib printf function. Fixes ARM-software/tf-issues#116 Change-Id: I7dfa1944f4c1e634b3e2d571f49afe02d109a351
73 lines
2.6 KiB
C
73 lines
2.6 KiB
C
/*
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* Copyright (c) 2013-2014, ARM Limited and Contributors. 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 are met:
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*
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* Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* Neither the name of ARM nor the names of its contributors may be used
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* to endorse or promote products derived from this software without specific
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* prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND 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 COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* 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 __DEBUG_H__
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#define __DEBUG_H__
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#include <stdio.h>
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/* If building the project with DEBUG disabled the INFO and WARN macros
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* won't produce any output. The ERROR macro is always enabled.
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* The format expected is the same as for printf().
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* INFO("Info %s.\n", "message") -> INFO: Info message.
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* WARN("Warning %s.\n", "message") -> WARN: Warning message.
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* ERROR("Error %s.\n", "message") -> ERROR: Error message.
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*
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* TODO : add debug levels.
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*/
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#if DEBUG
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#define INFO(...) tf_printf("INFO: " __VA_ARGS__)
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#define WARN(...) tf_printf("WARN: " __VA_ARGS__)
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#else
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#define INFO(...)
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#define WARN(...)
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#endif
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#define ERROR(...) tf_printf("ERROR: " __VA_ARGS__)
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/* For the moment this Panic function is very basic, Report an error and
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* spin. This can be expanded in the future to provide more information.
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*/
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#if DEBUG
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void __dead2 do_panic(const char *file, int line);
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#define panic() do_panic(__FILE__, __LINE__)
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#else
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void __dead2 do_panic(void);
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#define panic() do_panic()
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#endif
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void print_string_value(char *s, unsigned long *mem);
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void tf_printf(const char *fmt, ...);
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#endif /* __DEBUG_H__ */
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