/* messages.c - error reporter -
- Copyright (C) 1987, 1991 Free Software Foundation, Inc.
-
+ Copyright (C) 1987-2021 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 1, 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,
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. */
-
-/* $Id$ */
-
-#include <stdio.h> /* define stderr */
-#include <errno.h>
+ 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 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 = 0; /* Count of number of warnings issued */
-
-int had_warnings() {
- return(warning_count);
-} /* had_err() */
+/* 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
-/* Nonzero if we've hit a 'bad error', and should not write an obj file,
- and exit with a nonzero error code */
+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;
+
+/* 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.
+
+ as_abort () is used for logic failure (assert or abort, signal).
+*/
+
+static void
+identify (const char *file)
+{
+ static int identified;
-static int error_count = 0;
+ if (identified)
+ return;
+ identified++;
-int had_errors() {
- return(error_count);
-} /* had_errors() */
+ if (!file)
+ {
+ unsigned int x;
+ file = as_where (&x);
+ }
+ if (file)
+ fprintf (stderr, "%s: ", file);
+ fprintf (stderr, _("Assembler messages:\n"));
+}
-/*
- * 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;
+/* The number of warnings issued. */
+static int warning_count;
+
+int
+had_warnings (void)
{
- extern int sys_nerr;
- extern char *sys_errlist[];
-
- as_where();
- fprintf(stderr,gripe,filename);
-
- if (errno > sys_nerr)
- fprintf(stderr, "Unknown error #%d.\n", errno);
- else
- fprintf(stderr, "%s.\n", sys_errlist[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(Format)
-const char *Format;
+ 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, 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 error_count;
+}
+
+/* Print the current location to stderr. */
+
+static void
+as_show_where (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;
+ 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, ...)
{
- as_where();
- _doprnt (Format, &args, stderr);
- (void)putc ('\n', stderr);
- /* as_where(); */
-} /* as_tsktsk */
-#endif /* not NO_VARARGS */
-#endif /* not NO_STDARG */
-
-#ifdef DONTDEF
-void as_tsktsk(Format,aa,ab,ac,ad,ae,af,ag,ah,ai,aj,ak,al,am,an)
-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)
{
- as_where();
- fprintf(stderr,Format,aa,ab,ac,ad,ae,af,ag,ah,ai,aj,ak,al,am,an);
- (void)putc('\n',stderr);
-} /* as_tsktsk() */
+ ++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);
#endif
-/*
- * a s _ w a r n ()
- *
- * 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_warn(Format)
-const char *Format;
-{
- va_list args;
-
- if(!flagseen['W']) {
- ++warning_count;
- as_where();
- va_start(args, Format);
- vfprintf(stderr, Format, args);
- 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;
-
- if(!flagseen['W']) {
- ++warning_count;
- as_where();
- va_start(args);
- vfprintf(stderr, Format, args);
- 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 */
-
-#ifdef DONTDEF
-void as_warn(Format,aa,ab,ac,ad,ae,af,ag,ah,ai,aj,ak,al,am,an)
-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)
{
- if(!flagseen['W']) {
- ++warning_count;
- as_where();
- fprintf(stderr,Format,aa,ab,ac,ad,ae,af,ag,ah,ai,aj,ak,al,am,an);
- (void)putc('\n',stderr);
- }
-} /* as_warn() */
+ ++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);
#endif
-/*
- * 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(Format)
-const char *Format;
+}
+
+/* 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;
-
- ++error_count;
- as_where();
- va_start(args, Format);
- vfprintf(stderr, Format, args);
- va_end(args);
- (void) putc('\n', stderr);
-} /* as_bad() */
-#else
-#ifndef NO_VARARGS
-void as_bad(Format,va_alist)
-char *Format;
-va_dcl
+ 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;
-
- ++error_count;
- as_where();
- va_start(args);
- vfprintf(stderr, Format, args);
- va_end(args);
- (void) putc('\n', stderr);
-} /* as_bad() */
-#else
-/*VARARGS1 */
-as_bad(Format,args)
-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)
{
- ++error_count;
- as_where();
- _doprnt (Format, &args, stderr);
- (void)putc ('\n', stderr);
- /* as_where(); */
-} /* as_bad() */
-#endif /* not NO_VARARGS */
-#endif /* not NO_STDARG */
-
-#ifdef DONTDEF
-void as_bad(Format,aa,ab,ac,ad,ae,af,ag,ah,ai,aj,ak,al,am,an)
-char *format;
+ 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)
{
- ++error_count;
- as_where();
- fprintf(stderr,Format,aa,ab,ac,ad,ae,af,ag,ah,ai,aj,ak,al,am,an);
- (void)putc('\n',stderr);
-} /* as_bad() */
+ /* 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
+}
+
+/* Support routines. */
-/*
- * 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(Format)
-const char *Format;
+void
+sprint_value (char *buf, valueT val)
{
- va_list args;
-
- as_where();
- va_start(args, Format);
- fprintf (stderr, "FATAL:");
- vfprintf(stderr, Format, args);
- (void) putc('\n', stderr);
- va_end(args);
- exit(42);
-} /* as_fatal() */
-#else
-#ifndef NO_VARARGS
-void as_fatal(Format,va_alist)
-char *Format;
-va_dcl
+ 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);
- fprintf (stderr, "FATAL:");
- vfprintf(stderr, Format, args);
- (void) putc('\n', stderr);
- va_end(args);
- exit(42);
-} /* as_fatal() */
-#else
-/*VARARGS1 */
-as_fatal(Format, args)
-char *Format;
+ 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)
{
- as_where();
- fprintf(stderr,"FATAL:");
- _doprnt (Format, &args, stderr);
- (void)putc ('\n', stderr);
- /* as_where(); */
- exit(42); /* What is a good exit status? */
-} /* as_fatal() */
-#endif /* not NO_VARARGS */
-#endif /* not NO_STDARG */
-
-#ifdef DONTDEF
-void as_fatal(Format,aa,ab,ac,ad,ae,af,ag,ah,ai,aj,ak,al,am,an)
-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:");
- fprintf(stderr, Format,aa,ab,ac,ad,ae,af,ag,ah,ai,aj,ak,al,am,an);
- (void) putc('\n', stderr);
- exit(42);
-} /* as_fatal() */
-#endif
-
-/* end: messages.c */
+ as_internal_value_out_of_range (prefix, value, min, max, file, line, 1);
+}
projects / thirdparty / binutils-gdb.git / blobdiff