/* messages.c - error reporter - Copyright (C) 1987, 91, 92, 93, 94, 95, 96, 97, 1998 Free Software Foundation, Inc. This file is part of GAS, the GNU Assembler. GAS 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; either version 2, or (at your option) any later version. GAS 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. You should have received a copy of the GNU General Public License along with GAS; see the file COPYING. If not, write to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "as.h" #include <stdio.h> #ifdef HAVE_ERRNO_H #include <errno.h> #endif #ifdef USE_STDARG #include <stdarg.h> #endif #ifdef USE_VARARGS #include <varargs.h> #endif #if !defined (USE_STDARG) && !defined (USE_VARARGS) /* Roll our own. */ #define va_alist REST #define va_dcl typedef int * va_list; #define va_start(ARGS) ARGS = &REST #define va_end(ARGS) #endif static void identify PARAMS ((char *)); static void as_show_where PARAMS ((void)); static void as_warn_internal PARAMS ((char *, unsigned int, char *)); static void as_bad_internal PARAMS ((char *, unsigned int, char *)); /* * Despite the rest of the comments in this file, (FIXME-SOON), * here is the current scheme for error messages etc: * * as_fatal() is used when gas is quite confused and * continuing the assembly is pointless. In this case we * exit immediately with error status. * * as_bad() is used to mark errors that result in what we * presume to be a useless object file. Say, we ignored * something that might have been vital. If we see any of * these, assembly will continue to the end of the source, * no object file will be produced, and we will terminate * with error status. The new option, -Z, tells us to * produce an object file anyway but we still exit with * error status. The assumption here is that you don't want * this object file but we could be wrong. * * as_warn() is used when we have an error from which we * have a plausible error recovery. eg, masking the top * bits of a constant that is longer than will fit in the * destination. In this case we will continue to assemble * the source, although we may have made a bad assumption, * and we will produce an object file and return normal exit * status (ie, no error). The new option -X tells us to * treat all as_warn() errors as as_bad() errors. That is, * no object file will be produced and we will exit with * error status. The idea here is that we don't kill an * entire make because of an error that we knew how to * correct. On the other hand, sometimes you might want to * stop the make at these points. * * as_tsktsk() is used when we see a minor error for which * our error recovery action is almost certainly correct. * In this case, we print a message and then assembly * continues as though no error occurred. */ static void identify (file) char *file; { static int identified; if (identified) return; identified++; if (!file) { unsigned int x; as_where (&file, &x); } if (file) fprintf (stderr, "%s: ", file); fprintf (stderr, _("Assembler messages:\n")); } static int warning_count; /* Count of number of warnings issued */ int had_warnings () { return (warning_count); } /* Nonzero if we've hit a 'bad error', and should not write an obj file, and exit with a nonzero error code */ static int error_count; int had_errors () { return (error_count); } /* Print the current location to stderr. */ static void as_show_where () { char *file; unsigned int line; as_where (&file, &line); identify (file); if (file) fprintf (stderr, "%s:%u: ", file, line); } /* * a s _ p e r r o r * * Like perror(3), but with more info. */ void as_perror (gripe, filename) const char *gripe; /* Unpunctuated error theme. */ const char *filename; { const char *errtxt; as_show_where (); fprintf (stderr, gripe, filename); #ifdef BFD_ASSEMBLER errtxt = bfd_errmsg (bfd_get_error ()); #else errtxt = xstrerror (errno); #endif fprintf (stderr, ": %s\n", errtxt); errno = 0; #ifdef BFD_ASSEMBLER bfd_set_error (bfd_error_no_error); #endif } /* * a s _ t s k t s k () * * Send to stderr a string as a warning, and locate warning * in input file(s). * Please only use this for when we have some recovery action. * Please explain in string (which may have '\n's) what recovery was done. */ #ifdef USE_STDARG void as_tsktsk (const char *format,...) { va_list args; as_show_where (); va_start (args, format); vfprintf (stderr, format, args); va_end (args); (void) putc ('\n', stderr); } /* as_tsktsk() */ #else void as_tsktsk (format, va_alist) const char *format; va_dcl { va_list args; as_show_where (); va_start (args); vfprintf (stderr, format, args); va_end (args); (void) putc ('\n', stderr); } /* as_tsktsk() */ #endif /* not NO_STDARG */ /* The common portion of as_warn and as_warn_where. */ static void as_warn_internal (file, line, buffer) char *file; unsigned int line; char *buffer; { ++warning_count; if (file == NULL) as_where (&file, &line); identify (file); if (file) fprintf (stderr, "%s:%u: ", file, line); fprintf (stderr, _("Warning: ")); fputs (buffer, stderr); (void) putc ('\n', stderr); #ifndef NO_LISTING listing_warning (buffer); #endif } /* * a s _ w a r n () * * Send to stderr a string as a warning, and locate warning * in input file(s). * Please only use this for when we have some recovery action. * Please explain in string (which may have '\n's) what recovery was done. */ #ifdef USE_STDARG void as_warn (const char *format,...) { va_list args; char buffer[2000]; if (!flag_no_warnings) { va_start (args, format); vsprintf (buffer, format, args); va_end (args); as_warn_internal ((char *) NULL, 0, buffer); } } /* as_warn() */ #else /*VARARGS1 */ void as_warn (format, va_alist) const char *format; va_dcl { va_list args; char buffer[2000]; if (!flag_no_warnings) { va_start (args); vsprintf (buffer, format, args); va_end (args); as_warn_internal ((char *) NULL, 0, buffer); } } /* as_warn() */ #endif /* not NO_STDARG */ /* as_warn_where, like as_bad but the file name and line number are passed in. Unfortunately, we have to repeat the function in order to handle the varargs correctly and portably. */ #ifdef USE_STDARG void as_warn_where (char *file, unsigned int line, const char *format,...) { va_list args; char buffer[2000]; if (!flag_no_warnings) { va_start (args, format); vsprintf (buffer, format, args); va_end (args); as_warn_internal (file, line, buffer); } } /* as_warn() */ #else /*VARARGS1 */ void as_warn_where (file, line, format, va_alist) char *file; unsigned int line; const char *format; va_dcl { va_list args; char buffer[2000]; if (!flag_no_warnings) { va_start (args); vsprintf (buffer, format, args); va_end (args); as_warn_internal (file, line, buffer); } } /* as_warn() */ #endif /* not NO_STDARG */ /* The common portion of as_bad and as_bad_where. */ static void as_bad_internal (file, line, buffer) char *file; unsigned int line; char *buffer; { ++error_count; if (file == NULL) as_where (&file, &line); identify (file); if (file) fprintf (stderr, "%s:%u: ", file, line); fprintf (stderr, _("Error: ")); fputs (buffer, stderr); (void) putc ('\n', stderr); #ifndef NO_LISTING listing_error (buffer); #endif } /* * a s _ b a d () * * Send to stderr a string as a warning, and locate warning in input file(s). * Please us when there is no recovery, but we want to continue processing * but not produce an object file. * Please explain in string (which may have '\n's) what recovery was done. */ #ifdef USE_STDARG void as_bad (const char *format,...) { va_list args; char buffer[2000]; va_start (args, format); vsprintf (buffer, format, args); va_end (args); as_bad_internal ((char *) NULL, 0, buffer); } #else /*VARARGS1 */ void as_bad (format, va_alist) const char *format; va_dcl { va_list args; char buffer[2000]; va_start (args); vsprintf (buffer, format, args); va_end (args); as_bad_internal ((char *) NULL, 0, buffer); } #endif /* not NO_STDARG */ /* as_bad_where, like as_bad but the file name and line number are passed in. Unfortunately, we have to repeat the function in order to handle the varargs correctly and portably. */ #ifdef USE_STDARG void as_bad_where (char *file, unsigned int line, const char *format,...) { va_list args; char buffer[2000]; va_start (args, format); vsprintf (buffer, format, args); va_end (args); as_bad_internal (file, line, buffer); } #else /*VARARGS1 */ void as_bad_where (file, line, format, va_alist) char *file; unsigned int line; const char *format; va_dcl { va_list args; char buffer[2000]; va_start (args); vsprintf (buffer, format, args); va_end (args); as_bad_internal (file, line, buffer); } #endif /* not NO_STDARG */ /* * a s _ f a t a l () * * Send to stderr a string as a fatal message, and print location of error in * input file(s). * Please only use this for when we DON'T have some recovery action. * It xexit()s with a warning status. */ #ifdef USE_STDARG void as_fatal (const char *format,...) { va_list args; as_show_where (); va_start (args, format); fprintf (stderr, _("Fatal error: ")); vfprintf (stderr, format, args); (void) putc ('\n', stderr); va_end (args); xexit (EXIT_FAILURE); } /* as_fatal() */ #else /*VARARGS1*/ void as_fatal (format, va_alist) char *format; va_dcl { va_list args; as_show_where (); va_start (args); fprintf (stderr, _("Fatal error: ")); vfprintf (stderr, format, args); (void) putc ('\n', stderr); va_end (args); xexit (EXIT_FAILURE); } /* as_fatal() */ #endif /* not NO_STDARG */ /* * as_assert: Indicate assertion failure. * Arguments: Filename, line number, optional function name. */ void as_assert (file, line, fn) const char *file, *fn; int line; { as_show_where (); fprintf (stderr, _("Internal error!\n")); if (fn) fprintf (stderr, _("Assertion failure in %s at %s line %d.\n"), fn, file, line); else fprintf (stderr, _("Assertion failure at %s line %d.\n"), file, line); fprintf (stderr, _("Please report this bug.\n")); xexit (EXIT_FAILURE); } /* as_abort: Print a friendly message saying how totally hosed we are, and exit without producing a core file. */ void as_abort (file, line, fn) const char *file, *fn; int line; { as_show_where (); if (fn) fprintf (stderr, _("Internal error, aborting at %s line %d in %s\n"), file, line, fn); else fprintf (stderr, _("Internal error, aborting at %s line %d\n"), file, line); fprintf (stderr, _("Please report this bug.\n")); xexit (EXIT_FAILURE); } /* Support routines. */ void fprint_value (file, val) FILE *file; valueT val; { if (sizeof (val) <= sizeof (long)) { fprintf (file, "%ld", (long) val); return; } #ifdef BFD_ASSEMBLER if (sizeof (val) <= sizeof (bfd_vma)) { fprintf_vma (file, val); return; } #endif abort (); } void sprint_value (buf, val) char *buf; valueT val; { if (sizeof (val) <= sizeof (long)) { sprintf (buf, "%ld", (long) val); return; } #ifdef BFD_ASSEMBLER if (sizeof (val) <= sizeof (bfd_vma)) { sprintf_vma (buf, val); return; } #endif abort (); } /* end of messages.c */