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/* Basic error reporting routines.
Copyright (C) 1999-2016 Free Software Foundation, Inc.
This file is part of GCC.
GCC 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 3, or (at your option) any later
version.
GCC 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 GCC; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. */
/* warning, error, and fatal. These definitions are suitable for use
in the generator programs; the compiler has a more elaborate suite
of diagnostic printers, found in diagnostic.c. */
#ifdef HOST_GENERATOR_FILE
#include "config.h"
#define GENERATOR_FILE 1
#else
#include "bconfig.h"
#endif
#include "system.h"
#include "errors.h"
/* Set this to argv[0] at the beginning of main. */
const char *progname;
/* Starts out 0, set to 1 if error is called. */
int have_error = 0;
/* Print a warning message - output produced, but there may be problems. */
void
warning (const char *format, ...)
{
va_list ap;
va_start (ap, format);
fprintf (stderr, "%s: warning: ", progname);
vfprintf (stderr, format, ap);
va_end (ap);
fputc ('\n', stderr);
}
/* Print an error message - we keep going but the output is unusable. */
void
error (const char *format, ...)
{
va_list ap;
va_start (ap, format);
fprintf (stderr, "%s: ", progname);
vfprintf (stderr, format, ap);
va_end (ap);
fputc ('\n', stderr);
have_error = 1;
}
/* Fatal error - terminate execution immediately. Does not return. */
void
fatal (const char *format, ...)
{
va_list ap;
va_start (ap, format);
fprintf (stderr, "%s: ", progname);
vfprintf (stderr, format, ap);
va_end (ap);
fputc ('\n', stderr);
exit (FATAL_EXIT_CODE);
}
/* Similar, but say we got an internal error. */
void
internal_error (const char *format, ...)
{
va_list ap;
va_start (ap, format);
fprintf (stderr, "%s: Internal error: ", progname);
vfprintf (stderr, format, ap);
va_end (ap);
fputc ('\n', stderr);
exit (FATAL_EXIT_CODE);
}
/* Given a partial pathname as input, return another pathname that
shares no directory elements with the pathname of __FILE__. This
is used by fancy_abort() to print `Internal compiler error in expr.c'
instead of `Internal compiler error in ../../GCC/gcc/expr.c'. This
version is meant to be used for the gen* programs and therefor need not
handle subdirectories. */
const char *
trim_filename (const char *name)
{
static const char this_file[] = __FILE__;
const char *p = name, *q = this_file;
/* Skip any parts the two filenames have in common. */
while (*p == *q && *p != 0 && *q != 0)
p++, q++;
/* Now go backwards until the previous directory separator. */
while (p > name && !IS_DIR_SEPARATOR (p[-1]))
p--;
return p;
}
/* "Fancy" abort. Reports where in the compiler someone gave up.
This file is used only by build programs, so we're not as polite as
the version in diagnostic.c. */
void
fancy_abort (const char *file, int line, const char *func)
{
internal_error ("abort in %s, at %s:%d", func, trim_filename (file), line);
}
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