/* messages.c - error reporter -
- Copyright (C) 1987, 1991, 1992 Free Software Foundation, Inc.
-
+ Copyright (C) 1987-2020 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)
+ the Free Software Foundation; either version 3, 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, 675 Mass Ave, Cambridge, MA 02139, USA. */
-#include <stdio.h> /* define stderr */
-#include <errno.h>
+ 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, 51 Franklin Street - Fifth Floor, Boston, MA
+ 02110-1301, USA. */
#include "as.h"
+#include <signal.h>
-#ifndef __STDC__
-#ifndef NO_STDARG
-#define NO_STDARG
-#endif
+/* If the system doesn't provide strsignal, we get it defined in
+ libiberty but no declaration is supplied. Because, reasons. */
+#if !defined (HAVE_STRSIGNAL) && !defined (strsignal)
+extern const char *strsignal (int);
#endif
-#ifndef NO_STDARG
-#include <stdarg.h>
-#else
-#ifndef NO_VARARGS
-#include <varargs.h>
-#endif /* NO_VARARGS */
-#endif /* NO_STDARG */
-
-/*
- * 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.
- */
-
-/*
- ERRORS
-
- JF: this is now bogus. We now print more standard error messages
- that try to look like everyone else's.
-
- We print the error message 1st, beginning in column 1.
- All ancillary info starts in column 2 on lines after the
- key error text.
- We try to print a location in logical and physical file
- just after the main error text.
- Caller then prints any appendices after that, begining all
- lines with at least 1 space.
-
- Optionally, we may die.
- There is no need for a trailing '\n' in your error text format
- because we supply one.
-
- as_warn(fmt,args) Like fprintf(stderr,fmt,args) but also call errwhere().
-
- as_fatal(fmt,args) Like as_warn() but exit with a fatal status.
-
- */
-
-static int warning_count; /* Count of number of warnings issued */
-
-int had_warnings() {
- return(warning_count);
-} /* had_err() */
+static void identify (const char *);
+static void as_show_where (void);
+static void as_warn_internal (const char *, unsigned int, char *);
+static void as_bad_internal (const char *, unsigned int, char *);
+static void signal_crash (int) ATTRIBUTE_NORETURN;
-/* Nonzero if we've hit a 'bad error', and should not write an obj file,
- and exit with a nonzero error code */
+/* Despite the rest of the comments in this file, (FIXME-SOON),
+ here is the current scheme for error messages etc:
-static int error_count;
+ 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.
-int had_errors() {
- return(error_count);
-} /* had_errors() */
+ 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.
+ as_abort () is used for logic failure (assert or abort, signal).
+*/
-/*
- * a s _ p e r r o r
- *
- * Like perror(3), but with more info.
- */
-void as_perror(gripe, filename)
-char *gripe; /* Unpunctuated error theme. */
-char *filename;
+static void
+identify (const char *file)
{
-#ifndef HAVE_STRERROR
- extern char *strerror();
-#endif /* HAVE_STRERROR */
-
- as_where();
- fprintf(stderr, gripe, filename);
- fprintf(stderr, ": %s\n", strerror(errno));
- errno = 0; /* After reporting, clear it. */
-} /* as_perror() */
-
-/*
- * a s _ t s k t s k ()
- *
- * Send to stderr a string (with bell) (JF: Bell is obnoxious!) 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.
- */
-
-#ifndef NO_STDARG
-void as_tsktsk(const char *Format, ...)
+ static int identified;
+
+ if (identified)
+ return;
+ identified++;
+
+ if (!file)
+ {
+ unsigned int x;
+ file = as_where (&x);
+ }
+
+ if (file)
+ fprintf (stderr, "%s: ", file);
+ fprintf (stderr, _("Assembler messages:\n"));
+}
+
+/* The number of warnings issued. */
+static int warning_count;
+
+int
+had_warnings (void)
{
- va_list args;
-
- as_where();
- va_start(args, Format);
- vfprintf(stderr, Format, args);
- va_end(args);
- (void) putc('\n', stderr);
-} /* as_tsktsk() */
-#else
-#ifndef NO_VARARGS
-void as_tsktsk(Format,va_alist)
-char *Format;
-va_dcl
+ 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 (void)
{
- va_list args;
-
- as_where();
- va_start(args);
- vfprintf(stderr, Format, args);
- va_end(args);
- (void) putc('\n', stderr);
-} /* as_tsktsk() */
-#else
-/*VARARGS1 */
-as_tsktsk(Format,args)
-char *Format;
+ return error_count;
+}
+
+/* Print the current location to stderr. */
+
+static void
+as_show_where (void)
{
- as_where();
- _doprnt (Format, &args, stderr);
- (void)putc ('\n', stderr);
- /* as_where(); */
-} /* as_tsktsk */
-#endif /* not NO_VARARGS */
-#endif /* not NO_STDARG */
-
-/*
- * 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.
- */
-
-#ifndef NO_STDARG
-void as_warn(const char *Format, ...)
+ const char *file;
+ unsigned int line;
+
+ file = as_where (&line);
+ identify (file);
+ if (file)
+ {
+ if (line != 0)
+ fprintf (stderr, "%s:%u: ", file, line);
+ else
+ fprintf (stderr, "%s: ", file);
+ }
+}
+
+/* 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. */
+
+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);
+}
+
+/* The common portion of as_warn and as_warn_where. */
+
+static void
+as_warn_internal (const char *file, unsigned int line, char *buffer)
{
- va_list args;
- char buffer[200];
-
- if(!flagseen['W']) {
- ++warning_count;
- as_where();
- va_start(args, Format);
- fprintf(stderr,"Warning: ");
- vsprintf(buffer, Format, args);
- fputs (buffer, stderr);
+ ++warning_count;
+
+ if (file == NULL)
+ file = as_where (&line);
+
+ identify (file);
+ if (file)
+ {
+ if (line != 0)
+ fprintf (stderr, "%s:%u: %s%s\n", file, line, _("Warning: "), buffer);
+ else
+ fprintf (stderr, "%s: %s%s\n", file, _("Warning: "), buffer);
+ }
+ else
+ fprintf (stderr, "%s%s\n", _("Warning: "), buffer);
#ifndef NO_LISTING
- listing_warning(buffer);
+ listing_warning (buffer);
#endif
- va_end(args);
- (void) putc('\n', stderr);
- }
-} /* as_warn() */
-#else
-#ifndef NO_VARARGS
-void as_warn(Format,va_alist)
-char *Format;
-va_dcl
+}
+
+/* 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. */
+
+void
+as_warn (const char *format, ...)
{
- va_list args;
- char buffer[200];
-
- if(!flagseen['W']) {
- ++warning_count;
- as_where();
- va_start(args);
- fprintf(stderr,"Warning: ");
- vsprintf(buffer, Format, args);
- fputs (buffer, stderr);
-#ifndef NO_LISTING
- listing_warning(buffer);
-#endif
- va_end(args);
- (void) putc('\n', stderr);
- }
-} /* as_warn() */
-#else
-/*VARARGS1 */
-as_warn(Format,args)
-char *Format;
+ va_list args;
+ char buffer[2000];
+
+ if (!flag_no_warnings)
+ {
+ va_start (args, format);
+ vsnprintf (buffer, sizeof (buffer), format, args);
+ va_end (args);
+ as_warn_internal ((char *) NULL, 0, buffer);
+ }
+}
+
+/* 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. */
+
+void
+as_warn_where (const char *file, unsigned int line, const char *format, ...)
{
- /* -W supresses warning messages. */
- if (! flagseen ['W']) {
- ++warning_count;
- as_where();
- _doprnt (Format, &args, stderr);
- (void)putc ('\n', stderr);
- /* as_where(); */
- }
-} /* as_warn() */
-#endif /* not NO_VARARGS */
-#endif /* not NO_STDARG */
-
-/*
- * a s _ b a d ()
- *
- * Send to stderr a string (with bell) (JF: Bell is obnoxious!) 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.
- */
-
-#ifndef NO_STDARG
-void as_bad(const char *Format, ...)
+ va_list args;
+ char buffer[2000];
+
+ if (!flag_no_warnings)
+ {
+ va_start (args, format);
+ vsnprintf (buffer, sizeof (buffer), format, args);
+ va_end (args);
+ as_warn_internal (file, line, buffer);
+ }
+}
+
+/* The common portion of as_bad and as_bad_where. */
+
+static void
+as_bad_internal (const char *file, unsigned int line, char *buffer)
{
- va_list args;
- char buffer[200];
-
- ++error_count;
- as_where();
- va_start(args, Format);
- fprintf(stderr,"Error: ");
-
- vsprintf(buffer, Format, args);
- fputs (buffer,stderr);
+ ++error_count;
+
+ if (file == NULL)
+ file = as_where (&line);
+
+ identify (file);
+ if (file)
+ {
+ if (line != 0)
+ fprintf (stderr, "%s:%u: %s%s\n", file, line, _("Error: "), buffer);
+ else
+ fprintf (stderr, "%s: %s%s\n", file, _("Error: "), buffer);
+ }
+ else
+ fprintf (stderr, "%s%s\n", _("Error: "), buffer);
#ifndef NO_LISTING
- listing_error(buffer);
+ listing_error (buffer);
#endif
- va_end(args);
- (void) putc('\n', stderr);
-} /* as_bad() */
-#else
-#ifndef NO_VARARGS
-void as_bad(Format,va_alist)
-char *Format;
-va_dcl
+}
+
+/* Send to stderr a string as a warning, and locate warning in input
+ file(s). Please use 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. */
+
+void
+as_bad (const char *format, ...)
{
- va_list args;
- char buffer[200];
-
- ++error_count;
- as_where();
- va_start(args);
- vsprintf(buffer, Format, args);
- fputs (buffer, stderr);
-#ifndef NO_LISTING
- listing_error(buffer);
+ va_list args;
+ char buffer[2000];
+
+ va_start (args, format);
+ vsnprintf (buffer, sizeof (buffer), format, args);
+ va_end (args);
+
+ as_bad_internal ((char *) NULL, 0, buffer);
+}
+
+/* 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. */
+
+void
+as_bad_where (const char *file, unsigned int line, const char *format, ...)
+{
+ va_list args;
+ char buffer[2000];
+
+ va_start (args, format);
+ vsnprintf (buffer, sizeof (buffer), format, args);
+ va_end (args);
+
+ as_bad_internal (file, line, buffer);
+}
+
+/* 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. */
+
+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);
+ /* Delete the output file, if it exists. This will prevent make from
+ thinking that a file was created and hence does not need rebuilding. */
+ if (out_file_name != NULL)
+ unlink_if_ordinary (out_file_name);
+ xexit (EXIT_FAILURE);
+}
+
+/* Indicate internal constency error.
+ Arguments: Filename, line number, optional function name.
+ FILENAME may be NULL, which we use for crash-via-signal. */
+
+void
+as_abort (const char *file, int line, const char *fn)
+{
+ as_show_where ();
+
+ if (!file)
+ fprintf (stderr, _("Internal error (%s).\n"), fn ? fn : "unknown");
+ else if (fn)
+ fprintf (stderr, _("Internal error in %s at %s:%d.\n"), fn, file, line);
+ else
+ fprintf (stderr, _("Internal error at %s:%d.\n"), file, line);
+
+ fprintf (stderr, _("Please report this bug.\n"));
+
+ xexit (EXIT_FAILURE);
+}
+
+/* Handler for fatal signals, such as SIGSEGV. */
+
+static void
+signal_crash (int signo)
+{
+ /* Reset, to prevent unbounded recursion. */
+ signal (signo, SIG_DFL);
+
+ as_abort (NULL, 0, strsignal (signo));
+}
+
+/* Register signal handlers, for less abrubt crashes. */
+
+void
+signal_init (void)
+{
+#ifdef SIGSEGV
+ signal (SIGSEGV, signal_crash);
+#endif
+#ifdef SIGILL
+ signal (SIGILL, signal_crash);
+#endif
+#ifdef SIGBUS
+ signal (SIGBUS, signal_crash);
+#endif
+#ifdef SIGABRT
+ signal (SIGABRT, signal_crash);
+#endif
+#if defined SIGIOT && (!defined SIGABRT || SIGABRT != SIGIOT)
+ signal (SIGIOT, signal_crash);
+#endif
+#ifdef SIGFPE
+ signal (SIGFPE, signal_crash);
#endif
-
- va_end(args);
- (void) putc('\n', stderr);
-} /* as_bad() */
-#else
-/*VARARGS1 */
-as_bad(Format,args)
-char *Format;
+}
+
+/* Support routines. */
+
+void
+sprint_value (char *buf, valueT val)
{
- ++error_count;
-
- as_where();
- fprintf(stderr,"Error: ");
- _doprnt (Format, &args, stderr);
- (void)putc ('\n', stderr);
- /* as_where(); */
-} /* as_bad() */
-#endif /* not NO_VARARGS */
-#endif /* not NO_STDARG */
-
-/*
- * a s _ f a t a l ()
- *
- * Send to stderr a string (with bell) (JF: Bell is obnoxious!) as a fatal
- * message, and locate stdsource in input file(s).
- * Please only use this for when we DON'T have some recovery action.
- * It exit()s with a warning status.
- */
-
-#ifndef NO_STDARG
-void as_fatal(const char *Format, ...)
+ if (sizeof (val) <= sizeof (long))
+ {
+ sprintf (buf, "%ld", (long) val);
+ return;
+ }
+ if (sizeof (val) <= sizeof (bfd_vma))
+ {
+ sprintf_vma (buf, val);
+ return;
+ }
+ abort ();
+}
+
+#define HEX_MAX_THRESHOLD 1024
+#define HEX_MIN_THRESHOLD -(HEX_MAX_THRESHOLD)
+
+static void
+as_internal_value_out_of_range (const char *prefix,
+ offsetT val,
+ offsetT min,
+ offsetT max,
+ const char *file,
+ unsigned line,
+ int bad)
{
- va_list args;
-
- as_where();
- va_start(args, Format);
- fprintf (stderr, "FATAL:");
- vfprintf(stderr, Format, args);
- (void) putc('\n', stderr);
- va_end(args);
- exit(33);
-} /* as_fatal() */
-#else
-#ifndef NO_VARARGS
-void as_fatal(Format,va_alist)
-char *Format;
-va_dcl
+ const char * err;
+
+ if (prefix == NULL)
+ prefix = "";
+
+ if (val >= min && val <= max)
+ {
+ addressT right = max & -max;
+
+ if (max <= 1)
+ abort ();
+
+ /* xgettext:c-format */
+ err = _("%s out of domain (%" BFD_VMA_FMT "d is not a multiple of %" \
+ BFD_VMA_FMT "d)");
+ if (bad)
+ as_bad_where (file, line, err, prefix, val, right);
+ else
+ as_warn_where (file, line, err, prefix, val, right);
+ return;
+ }
+
+ if ( val < HEX_MAX_THRESHOLD
+ && min < HEX_MAX_THRESHOLD
+ && max < HEX_MAX_THRESHOLD
+ && val > HEX_MIN_THRESHOLD
+ && min > HEX_MIN_THRESHOLD
+ && max > HEX_MIN_THRESHOLD)
+ {
+ /* xgettext:c-format */
+ err = _("%s out of range (%" BFD_VMA_FMT "d is not between %" \
+ BFD_VMA_FMT "d and %" BFD_VMA_FMT "d)");
+
+ if (bad)
+ as_bad_where (file, line, err, prefix, val, min, max);
+ else
+ as_warn_where (file, line, err, prefix, val, min, max);
+ }
+ else
+ {
+ char val_buf [sizeof (val) * 3 + 2];
+ char min_buf [sizeof (val) * 3 + 2];
+ char max_buf [sizeof (val) * 3 + 2];
+
+ if (sizeof (val) > sizeof (bfd_vma))
+ abort ();
+
+ sprintf_vma (val_buf, (bfd_vma) val);
+ sprintf_vma (min_buf, (bfd_vma) min);
+ sprintf_vma (max_buf, (bfd_vma) max);
+
+ /* xgettext:c-format. */
+ err = _("%s out of range (0x%s is not between 0x%s and 0x%s)");
+
+ if (bad)
+ as_bad_where (file, line, err, prefix, val_buf, min_buf, max_buf);
+ else
+ as_warn_where (file, line, err, prefix, val_buf, min_buf, max_buf);
+ }
+}
+
+void
+as_warn_value_out_of_range (const char *prefix,
+ offsetT value,
+ offsetT min,
+ offsetT max,
+ const char *file,
+ unsigned line)
{
- va_list args;
-
- as_where();
- va_start(args);
- fprintf (stderr, "FATAL:");
- vfprintf(stderr, Format, args);
- (void) putc('\n', stderr);
- va_end(args);
- exit(33);
-} /* as_fatal() */
-#else
-/*VARARGS1 */
-as_fatal(Format, args)
-char *Format;
+ as_internal_value_out_of_range (prefix, value, min, max, file, line, 0);
+}
+
+void
+as_bad_value_out_of_range (const char *prefix,
+ offsetT value,
+ offsetT min,
+ offsetT max,
+ const char *file,
+ unsigned line)
{
- as_where();
- fprintf(stderr,"FATAL:");
- _doprnt (Format, &args, stderr);
- (void)putc ('\n', stderr);
- /* as_where(); */
- exit(33); /* What is a good exit status? */
-} /* as_fatal() */
-#endif /* not NO_VARARGS */
-#endif /* not NO_STDARG */
-
-/* end of messages.c */
+ as_internal_value_out_of_range (prefix, value, min, max, file, line, 1);
+}
projects / deliverable / binutils-gdb.git / blobdiff