src/external/gpl3/binutils.old/dist/gas/messages.c - diff

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Diff for /src/external/gpl3/binutils.old/dist/gas/messages.c between version 1.5 and 1.5.2.1

version 1.5, 2018/04/14 15:49:41

version 1.5.2.1, 2020/04/08 14:05:40

Line 1

/* messages.c - error reporter -

This file is part of GAS, the GNU Assembler.

GAS is free software; you can redistribute it and/or modify

Line 18

02110-1301, USA. */

#include "as.h"

#include <signal.h>

/* 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

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:

Line 58 static void as_bad_internal (const char

Line 66 static void as_bad_internal (const char

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. */

continues as though no error occurred.

as_abort () is used for logic failure (assert or abort, signal).

static void

identify (const char *file)

Line 286 as_fatal (const char *format, ...)

Line 297 as_fatal (const char *format, ...)

xexit (EXIT_FAILURE);

}

/* Indicate assertion failure.

/* Indicate internal constency error.

Arguments: Filename, line number, optional function name. */

Arguments: Filename, line number, optional function name.

FILENAME may be NULL, which we use for crash-via-signal. */

void

as_assert (const char *file, int line, const char *fn)

as_abort (const char *file, int line, const char *fn)

{

as_show_where ();

fprintf (stderr, _("Internal error!\n"));

if (fn)

if (!file)

fprintf (stderr, _("Assertion failure in %s at %s:%d.\n"),

fprintf (stderr, _("Internal error (%s).\n"), fn ? fn : "unknown");

fn, file, line);

else if (fn)

fprintf (stderr, _("Internal error in %s at %s:%d.\n"), fn, file, line);

else

fprintf (stderr, _("Assertion failure at %s:%d.\n"), file, line);

fprintf (stderr, _("Internal error at %s:%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,

/* Handler for fatal signals, such as SIGSEGV. */

and exit without producing a core file. */

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

as_abort (const char *file, int line, const char *fn)

signal_init (void)

{

as_show_where ();

#ifdef SIGSEGV

if (fn)

signal (SIGSEGV, signal_crash);

fprintf (stderr, _("Internal error, aborting at %s:%d in %s\n"),

#endif

file, line, fn);

#ifdef SIGILL

else

signal (SIGILL, signal_crash);

fprintf (stderr, _("Internal error, aborting at %s:%d\n"),

#endif

file, line);

#ifdef SIGBUS

fprintf (stderr, _("Please report this bug.\n"));

signal (SIGBUS, signal_crash);

xexit (EXIT_FAILURE);

#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. */

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