1 /* 2 * Copyright (c) 2013-2014, ARM Limited and Contributors. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are met: 6 * 7 * Redistributions of source code must retain the above copyright notice, this 8 * list of conditions and the following disclaimer. 9 * 10 * Redistributions in binary form must reproduce the above copyright notice, 11 * this list of conditions and the following disclaimer in the documentation 12 * and/or other materials provided with the distribution. 13 * 14 * Neither the name of ARM nor the names of its contributors may be used 15 * to endorse or promote products derived from this software without specific 16 * prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 22 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28 * POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #ifndef __DEBUG_H__ 32 #define __DEBUG_H__ 33 34 /* Do not try to call this from ASM code. */ 35 #ifndef __ASSEMBLY__ 36 37 #include <stdio.h> 38 39 /* If building the project with DEBUG disabled the INFO and WARN macros 40 * won't produce any output. The ERROR macro is always enabled. 41 * The format expected is the same as for printf(). 42 * INFO("Info %s.\n", "message") -> INFO: Info message. 43 * WARN("Warning %s.\n", "message") -> WARN: Warning message. 44 * ERROR("Error %s.\n", "message") -> ERROR: Error message. 45 * 46 * TODO : add debug levels. 47 */ 48 #if DEBUG 49 #define INFO(...) printf("INFO: " __VA_ARGS__) 50 #define WARN(...) printf("WARN: " __VA_ARGS__) 51 #else 52 #define INFO(...) 53 #define WARN(...) 54 #endif 55 56 #define ERROR(...) printf("ERROR: " __VA_ARGS__) 57 58 59 /* For the moment this Panic function is very basic, Report an error and 60 * spin. This can be expanded in the future to provide more information. 61 */ 62 static inline void __attribute__((noreturn)) panic(void) 63 { 64 ERROR("PANIC\n"); 65 while (1) 66 ; 67 } 68 69 #endif /* __ASSEMBLY__ */ 70 #endif /* __DEBUG_H__ */ 71