1/* Basic error reporting routines. 2 Copyright (C) 1999-2015 Free Software Foundation, Inc. 3 4This file is part of GCC. 5 6GCC is free software; you can redistribute it and/or modify it under 7the terms of the GNU General Public License as published by the Free 8Software Foundation; either version 3, or (at your option) any later 9version. 10 11GCC is distributed in the hope that it will be useful, but WITHOUT ANY 12WARRANTY; without even the implied warranty of MERCHANTABILITY or 13FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14for more details. 15 16You should have received a copy of the GNU General Public License 17along with GCC; see the file COPYING3. If not see 18<http://www.gnu.org/licenses/>. */ 19 20/* warning, error, and fatal. These definitions are suitable for use 21 in the generator programs; the compiler has a more elaborate suite 22 of diagnostic printers, found in diagnostic.c. */ 23 24#ifdef HOST_GENERATOR_FILE 25#include "config.h" 26#define GENERATOR_FILE 1 27#else 28#include "bconfig.h" 29#endif 30#include "system.h" 31#include "errors.h" 32 33/* Set this to argv[0] at the beginning of main. */ 34 35const char *progname; 36 37/* Starts out 0, set to 1 if error is called. */ 38 39int have_error = 0; 40 41/* Print a warning message - output produced, but there may be problems. */ 42 43void 44warning (const char *format, ...) 45{ 46 va_list ap; 47 48 va_start (ap, format); 49 fprintf (stderr, "%s: warning: ", progname); 50 vfprintf (stderr, format, ap); 51 va_end (ap); 52 fputc ('\n', stderr); 53} 54 55 56/* Print an error message - we keep going but the output is unusable. */ 57 58void 59error (const char *format, ...) 60{ 61 va_list ap; 62 63 va_start (ap, format); 64 fprintf (stderr, "%s: ", progname); 65 vfprintf (stderr, format, ap); 66 va_end (ap); 67 fputc ('\n', stderr); 68 69 have_error = 1; 70} 71 72 73/* Fatal error - terminate execution immediately. Does not return. */ 74 75void 76fatal (const char *format, ...) 77{ 78 va_list ap; 79 80 va_start (ap, format); 81 fprintf (stderr, "%s: ", progname); 82 vfprintf (stderr, format, ap); 83 va_end (ap); 84 fputc ('\n', stderr); 85 exit (FATAL_EXIT_CODE); 86} 87 88/* Similar, but say we got an internal error. */ 89 90void 91internal_error (const char *format, ...) 92{ 93 va_list ap; 94 95 va_start (ap, format); 96 fprintf (stderr, "%s: Internal error: ", progname); 97 vfprintf (stderr, format, ap); 98 va_end (ap); 99 fputc ('\n', stderr); 100 exit (FATAL_EXIT_CODE); 101} 102 103/* Given a partial pathname as input, return another pathname that 104 shares no directory elements with the pathname of __FILE__. This 105 is used by fancy_abort() to print `Internal compiler error in expr.c' 106 instead of `Internal compiler error in ../../GCC/gcc/expr.c'. This 107 version is meant to be used for the gen* programs and therefor need not 108 handle subdirectories. */ 109 110const char * 111trim_filename (const char *name) 112{ 113 static const char this_file[] = __FILE__; 114 const char *p = name, *q = this_file; 115 116 /* Skip any parts the two filenames have in common. */ 117 while (*p == *q && *p != 0 && *q != 0) 118 p++, q++; 119 120 /* Now go backwards until the previous directory separator. */ 121 while (p > name && !IS_DIR_SEPARATOR (p[-1])) 122 p--; 123 124 return p; 125} 126 127/* "Fancy" abort. Reports where in the compiler someone gave up. 128 This file is used only by build programs, so we're not as polite as 129 the version in diagnostic.c. */ 130void 131fancy_abort (const char *file, int line, const char *func) 132{ 133 internal_error ("abort in %s, at %s:%d", func, trim_filename (file), line); 134} 135