-/* Copyright (C) 2002, 2003, 2005, 2006 Free Software Foundation, Inc.
+/* Copyright (C) 2002, 2003, 2005, 2006, 2007, 2009
+ Free Software Foundation, Inc.
Contributed by Andy Vaught
This file is part of the GNU Fortran 95 runtime library (libgfortran).
Libgfortran 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.
-In addition to the permissions in the GNU General Public License, the
-Free Software Foundation gives you unlimited permission to link the
-compiled version of this file into combinations with other programs,
-and to distribute those combinations without any restriction coming
-from the use of this file. (The General Public License restrictions
-do apply in other respects; for example, they cover modification of
-the file, and distribution when not linked into a combine
-executable.)
-
Libgfortran 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 libgfortran; see the file COPYING. If not, write to
-the Free Software Foundation, 51 Franklin Street, Fifth Floor,
-Boston, MA 02110-1301, USA. */
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+<http://www.gnu.org/licenses/>. */
-#include "config.h"
+#include "libgfortran.h"
#include <assert.h>
-#include <stdio.h>
-#include <stdarg.h>
#include <string.h>
-#include <float.h>
#include <errno.h>
-#include "libgfortran.h"
-#include "../io/io.h"
-#include "../io/unix.h"
+#ifdef HAVE_SIGNAL_H
+#include <signal.h>
+#endif
+
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+
+#ifdef HAVE_SYS_TIME_H
+#include <sys/time.h>
+#endif
+
+/* <sys/time.h> has to be included before <sys/resource.h> to work
+ around PR 30518; otherwise, MacOS 10.3.9 headers are just broken. */
+#ifdef HAVE_SYS_RESOURCE_H
+#include <sys/resource.h>
+#endif
+
+
+#ifdef __MINGW32__
+#define HAVE_GETPID 1
+#include <process.h>
+#endif
+
+
+/* sys_exit()-- Terminate the program with an exit code. */
+
+void
+sys_exit (int code)
+{
+ /* Show error backtrace if possible. */
+ if (code != 0 && code != 4
+ && (options.backtrace == 1
+ || (options.backtrace == -1 && compile_options.backtrace == 1)))
+ show_backtrace ();
+
+ /* Dump core if requested. */
+ if (code != 0
+ && (options.dump_core == 1
+ || (options.dump_core == -1 && compile_options.dump_core == 1)))
+ {
+#if defined(HAVE_GETRLIMIT) && defined(RLIMIT_CORE)
+ /* Warn if a core file cannot be produced because
+ of core size limit. */
+
+ struct rlimit core_limit;
+
+ if (getrlimit (RLIMIT_CORE, &core_limit) == 0 && core_limit.rlim_cur == 0)
+ st_printf ("** Warning: a core dump was requested, but the core size"
+ "limit\n** is currently zero.\n\n");
+#endif
+
+
+#if defined(HAVE_KILL) && defined(HAVE_GETPID) && defined(SIGQUIT)
+ kill (getpid (), SIGQUIT);
+#else
+ st_printf ("Core dump not possible, sorry.");
+#endif
+ }
+
+ exit (code);
+}
+
/* Error conditions. The tricky part here is printing a message when
* it is the I/O subsystem that is severely wounded. Our goal is to
* Other error returns are reserved for the STOP statement with a numeric code.
*/
-/* gfc_itoa()-- Integer to decimal conversion. */
-
-const char *
-gfc_itoa (GFC_INTEGER_LARGEST n, char *buffer, size_t len)
-{
- int negative;
- char *p;
- GFC_UINTEGER_LARGEST t;
-
- assert (len >= GFC_ITOA_BUF_SIZE);
-
- if (n == 0)
- return "0";
-
- negative = 0;
- t = n;
- if (n < 0)
- {
- negative = 1;
- t = -n; /*must use unsigned to protect from overflow*/
- }
-
- p = buffer + GFC_ITOA_BUF_SIZE - 1;
- *p = '\0';
-
- while (t != 0)
- {
- *--p = '0' + (t % 10);
- t /= 10;
- }
-
- if (negative)
- *--p = '-';
- return p;
-}
-
-
-/* xtoa()-- Integer to hexadecimal conversion. */
+/* gfc_xtoa()-- Integer to hexadecimal conversion. */
const char *
-xtoa (GFC_UINTEGER_LARGEST n, char *buffer, size_t len)
+gfc_xtoa (GFC_UINTEGER_LARGEST n, char *buffer, size_t len)
{
int digit;
char *p;
return p;
}
-
-/* st_printf()-- simple printf() function for streams that handles the
- * formats %d, %s and %c. This function handles printing of error
- * messages that originate within the library itself, not from a user
- * program. */
-
-int
-st_printf (const char *format, ...)
-{
- int count, total;
- va_list arg;
- char *p;
- const char *q;
- stream *s;
- char itoa_buf[GFC_ITOA_BUF_SIZE];
- unix_stream err_stream;
-
- total = 0;
- s = init_error_stream (&err_stream);
- va_start (arg, format);
-
- for (;;)
- {
- count = 0;
-
- while (format[count] != '%' && format[count] != '\0')
- count++;
-
- if (count != 0)
- {
- p = salloc_w (s, &count);
- memmove (p, format, count);
- sfree (s);
- }
-
- total += count;
- format += count;
- if (*format++ == '\0')
- break;
-
- switch (*format)
- {
- case 'c':
- count = 1;
-
- p = salloc_w (s, &count);
- *p = (char) va_arg (arg, int);
-
- sfree (s);
- break;
-
- case 'd':
- q = gfc_itoa (va_arg (arg, int), itoa_buf, sizeof (itoa_buf));
- count = strlen (q);
-
- p = salloc_w (s, &count);
- memmove (p, q, count);
- sfree (s);
- break;
-
- case 'x':
- q = xtoa (va_arg (arg, unsigned), itoa_buf, sizeof (itoa_buf));
- count = strlen (q);
-
- p = salloc_w (s, &count);
- memmove (p, q, count);
- sfree (s);
- break;
-
- case 's':
- q = va_arg (arg, char *);
- count = strlen (q);
-
- p = salloc_w (s, &count);
- memmove (p, q, count);
- sfree (s);
- break;
-
- case '\0':
- return total;
-
- default:
- count = 2;
- p = salloc_w (s, &count);
- p[0] = format[-1];
- p[1] = format[0];
- sfree (s);
- break;
- }
-
- total += count;
- format++;
- }
-
- va_end (arg);
- return total;
-}
-
-
-/* st_sprintf()-- Simple sprintf() for formatting memory buffers. */
+/* show_locus()-- Print a line number and filename describing where
+ * something went wrong */
void
-st_sprintf (char *buffer, const char *format, ...)
+show_locus (st_parameter_common *cmp)
{
- va_list arg;
- char c;
- const char *p;
- int count;
- char itoa_buf[GFC_ITOA_BUF_SIZE];
-
- va_start (arg, format);
+ static char *filename;
- for (;;)
+ if (!options.locus || cmp == NULL || cmp->filename == NULL)
+ return;
+
+ if (cmp->unit > 0)
{
- c = *format++;
- if (c != '%')
+ filename = filename_from_unit (cmp->unit);
+ if (filename != NULL)
{
- *buffer++ = c;
- if (c == '\0')
- break;
- continue;
+ st_printf ("At line %d of file %s (unit = %d, file = '%s')\n",
+ (int) cmp->line, cmp->filename, (int) cmp->unit, filename);
+ free_mem (filename);
}
-
- c = *format++;
- switch (c)
+ else
{
- case 'c':
- *buffer++ = (char) va_arg (arg, int);
- break;
-
- case 'd':
- p = gfc_itoa (va_arg (arg, int), itoa_buf, sizeof (itoa_buf));
- count = strlen (p);
-
- memcpy (buffer, p, count);
- buffer += count;
- break;
-
- case 's':
- p = va_arg (arg, char *);
- count = strlen (p);
-
- memcpy (buffer, p, count);
- buffer += count;
- break;
-
- default:
- *buffer++ = c;
+ st_printf ("At line %d of file %s (unit = %d)\n",
+ (int) cmp->line, cmp->filename, (int) cmp->unit);
}
+ return;
}
- va_end (arg);
-}
-
-
-/* show_locus()-- Print a line number and filename describing where
- * something went wrong */
-
-void
-show_locus (st_parameter_common *cmp)
-{
- if (!options.locus || cmp == NULL || cmp->filename == NULL)
- return;
-
st_printf ("At line %d of file %s\n", (int) cmp->line, cmp->filename);
}
st_printf ("Operating system error: %s\n%s\n", get_oserror (), message);
sys_exit (1);
}
+iexport(os_error);
/* void runtime_error()-- These are errors associated with an
* invalid fortran program. */
void
-runtime_error (const char *message)
+runtime_error (const char *message, ...)
{
+ va_list ap;
+
recursion_check ();
- st_printf ("Fortran runtime error: %s\n", message);
+ st_printf ("Fortran runtime error: ");
+ va_start (ap, message);
+ st_vprintf (message, ap);
+ va_end (ap);
+ st_printf ("\n");
sys_exit (2);
}
iexport(runtime_error);
+/* void runtime_error_at()-- These are errors associated with a
+ * run time error generated by the front end compiler. */
+
+void
+runtime_error_at (const char *where, const char *message, ...)
+{
+ va_list ap;
+
+ recursion_check ();
+ st_printf ("%s\n", where);
+ st_printf ("Fortran runtime error: ");
+ va_start (ap, message);
+ st_vprintf (message, ap);
+ va_end (ap);
+ st_printf ("\n");
+ sys_exit (2);
+}
+iexport(runtime_error_at);
+
+
+void
+runtime_warning_at (const char *where, const char *message, ...)
+{
+ va_list ap;
+
+ st_printf ("%s\n", where);
+ st_printf ("Fortran runtime warning: ");
+ va_start (ap, message);
+ st_vprintf (message, ap);
+ va_end (ap);
+ st_printf ("\n");
+}
+iexport(runtime_warning_at);
+
/* void internal_error()-- These are this-can't-happen errors
* that indicate something deeply wrong. */
switch (code)
{
- case ERROR_EOR:
+ case LIBERROR_EOR:
p = "End of record";
break;
- case ERROR_END:
+ case LIBERROR_END:
p = "End of file";
break;
- case ERROR_OK:
+ case LIBERROR_OK:
p = "Successful return";
break;
- case ERROR_OS:
+ case LIBERROR_OS:
p = "Operating system error";
break;
- case ERROR_BAD_OPTION:
+ case LIBERROR_BAD_OPTION:
p = "Bad statement option";
break;
- case ERROR_MISSING_OPTION:
+ case LIBERROR_MISSING_OPTION:
p = "Missing statement option";
break;
- case ERROR_OPTION_CONFLICT:
+ case LIBERROR_OPTION_CONFLICT:
p = "Conflicting statement options";
break;
- case ERROR_ALREADY_OPEN:
+ case LIBERROR_ALREADY_OPEN:
p = "File already opened in another unit";
break;
- case ERROR_BAD_UNIT:
+ case LIBERROR_BAD_UNIT:
p = "Unattached unit";
break;
- case ERROR_FORMAT:
+ case LIBERROR_FORMAT:
p = "FORMAT error";
break;
- case ERROR_BAD_ACTION:
+ case LIBERROR_BAD_ACTION:
p = "Incorrect ACTION specified";
break;
- case ERROR_ENDFILE:
+ case LIBERROR_ENDFILE:
p = "Read past ENDFILE record";
break;
- case ERROR_BAD_US:
+ case LIBERROR_BAD_US:
p = "Corrupt unformatted sequential file";
break;
- case ERROR_READ_VALUE:
+ case LIBERROR_READ_VALUE:
p = "Bad value during read";
break;
- case ERROR_READ_OVERFLOW:
+ case LIBERROR_READ_OVERFLOW:
p = "Numeric overflow on read";
break;
- case ERROR_INTERNAL:
+ case LIBERROR_INTERNAL:
p = "Internal error in run-time library";
break;
- case ERROR_INTERNAL_UNIT:
+ case LIBERROR_INTERNAL_UNIT:
p = "Internal unit I/O error";
break;
- case ERROR_DIRECT_EOR:
+ case LIBERROR_DIRECT_EOR:
p = "Write exceeds length of DIRECT access record";
break;
- case ERROR_SHORT_RECORD:
+ case LIBERROR_SHORT_RECORD:
p = "I/O past end of record on unformatted file";
break;
- case ERROR_CORRUPT_FILE:
+ case LIBERROR_CORRUPT_FILE:
p = "Unformatted file structure has been corrupted";
break;
void
generate_error (st_parameter_common *cmp, int family, const char *message)
{
+
+ /* If there was a previous error, don't mask it with another
+ error message, EOF or EOR condition. */
+
+ if ((cmp->flags & IOPARM_LIBRETURN_MASK) == IOPARM_LIBRETURN_ERROR)
+ return;
+
/* Set the error status. */
if ((cmp->flags & IOPARM_HAS_IOSTAT))
- *cmp->iostat = (family == ERROR_OS) ? errno : family;
+ *cmp->iostat = (family == LIBERROR_OS) ? errno : family;
if (message == NULL)
message =
- (family == ERROR_OS) ? get_oserror () : translate_error (family);
+ (family == LIBERROR_OS) ? get_oserror () : translate_error (family);
if (cmp->flags & IOPARM_HAS_IOMSG)
cf_strcpy (cmp->iomsg, cmp->iomsg_len, message);
cmp->flags &= ~IOPARM_LIBRETURN_MASK;
switch (family)
{
- case ERROR_EOR:
+ case LIBERROR_EOR:
cmp->flags |= IOPARM_LIBRETURN_EOR;
if ((cmp->flags & IOPARM_EOR))
return;
break;
- case ERROR_END:
+ case LIBERROR_END:
cmp->flags |= IOPARM_LIBRETURN_END;
if ((cmp->flags & IOPARM_END))
return;
st_printf ("Fortran runtime error: %s\n", message);
sys_exit (2);
}
-
+iexport(generate_error);
/* Whether, for a feature included in a given standard set (GFC_STD_*),
we should issue an error or a warning, or be quiet. */
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