-/* Copyright (C) 2002-2003 Free Software Foundation, Inc.
+/* Copyright (C) 2002, 2003, 2005, 2006 Free Software Foundation, Inc.
Contributed by Andy Vaught
-This file is part of the GNU Fortran 95 runtime library (libgfor).
+This file is part of the GNU Fortran 95 runtime library (libgfortran).
-Libgfor is free software; you can redistribute it and/or modify
+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)
any later version.
-Libgfor is distributed in the hope that it will be useful,
+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 libgfor; see the file COPYING. If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
+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. */
#include "config.h"
+#include <assert.h>
#include <stdio.h>
#include <stdarg.h>
#include <string.h>
-#include <float.h>
+#include <errno.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
#include "libgfortran.h"
-#include "../io/io.h"
+
+#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.
*/
-/* locus variables. These are optionally set by a caller before a
- * library subroutine is called. They are always cleared on exit so
- * that files that report loci and those that do not can be linked
- * together without reporting an erroneous position. */
+/* gfc_itoa()-- Integer to decimal conversion. */
-char *filename;
-unsigned line;
-
-static char buffer[32]; /* buffer for integer/ascii conversions */
-
-
-/* Returns a pointer to a static buffer. */
-
-char *
-itoa (int64_t n)
+const char *
+gfc_itoa (GFC_INTEGER_LARGEST n, char *buffer, size_t len)
{
int negative;
char *p;
- uint64_t t;
+ GFC_UINTEGER_LARGEST t;
+
+ assert (len >= GFC_ITOA_BUF_SIZE);
if (n == 0)
- {
- buffer[0] = '0';
- buffer[1] = '\0';
- return buffer;
- }
+ return "0";
negative = 0;
t = n;
t = -n; /*must use unsigned to protect from overflow*/
}
- p = buffer + sizeof (buffer) - 1;
- *p-- = '\0';
+ p = buffer + GFC_ITOA_BUF_SIZE - 1;
+ *p = '\0';
while (t != 0)
{
- *p-- = '0' + (t % 10);
+ *--p = '0' + (t % 10);
t /= 10;
}
if (negative)
- *p-- = '-';
- return ++p;
+ *--p = '-';
+ return p;
}
-/* xtoa()-- Integer to hexadecimal conversion. Returns a pointer to a
- * static buffer. */
+/* xtoa()-- Integer to hexadecimal conversion. */
-char *
-xtoa (uint64_t n)
+const char *
+xtoa (GFC_UINTEGER_LARGEST n, char *buffer, size_t len)
{
int digit;
char *p;
+ assert (len >= GFC_XTOA_BUF_SIZE);
+
if (n == 0)
- {
- buffer[0] = '0';
- buffer[1] = '\0';
- return buffer;
- }
+ return "0";
- p = buffer + sizeof (buffer) - 1;
- *p-- = '\0';
+ p = buffer + GFC_XTOA_BUF_SIZE - 1;
+ *p = '\0';
while (n != 0)
{
if (digit > 9)
digit += 'A' - '0' - 10;
- *p-- = '0' + digit;
+ *--p = '0' + digit;
n >>= 4;
}
- 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, *q;
- stream *s;
-
- total = 0;
- s = init_error_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 = itoa (va_arg (arg, int));
- count = strlen (q);
-
- p = salloc_w (s, &count);
- memmove (p, q, count);
- sfree (s);
- break;
-
- case 'x':
- q = xtoa (va_arg (arg, unsigned));
- 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;
+ return p;
}
st_sprintf (char *buffer, const char *format, ...)
{
va_list arg;
- char c, *p;
+ char c;
+ const char *p;
int count;
+ char itoa_buf[GFC_ITOA_BUF_SIZE];
va_start (arg, format);
break;
case 'd':
- p = itoa (va_arg (arg, int));
+ p = gfc_itoa (va_arg (arg, int), itoa_buf, sizeof (itoa_buf));
count = strlen (p);
memcpy (buffer, p, count);
* something went wrong */
void
-show_locus (void)
+show_locus (st_parameter_common *cmp)
{
-
- if (!options.locus || filename == NULL)
+ if (!options.locus || cmp == NULL || cmp->filename == NULL)
return;
- st_printf ("At line %d of file %s\n", line, filename);
+ st_printf ("At line %d of file %s\n", (int) cmp->line, cmp->filename);
}
{
static int magic = 0;
+ /* Don't even try to print something at this point */
if (magic == MAGIC)
- sys_exit (4); /* Don't even try to print something at this point */
+ sys_exit (4);
magic = MAGIC;
}
void
os_error (const char *message)
{
-
recursion_check ();
-
- show_locus ();
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
void
runtime_error (const char *message)
{
-
recursion_check ();
-
- show_locus ();
st_printf ("Fortran runtime error: %s\n", message);
+ 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)
+{
+ recursion_check ();
+ st_printf ("%s\n", where);
+ st_printf ("Fortran runtime error: %s\n", message);
sys_exit (2);
}
+iexport(runtime_error_at);
/* void internal_error()-- These are this-can't-happen errors
* that indicate something deeply wrong. */
void
-internal_error (const char *message)
+internal_error (st_parameter_common *cmp, const char *message)
{
-
recursion_check ();
-
- show_locus ();
+ show_locus (cmp);
st_printf ("Internal Error: %s\n", message);
+
+ /* This function call is here to get the main.o object file included
+ when linking statically. This works because error.o is supposed to
+ be always linked in (and the function call is in internal_error
+ because hopefully it doesn't happen too often). */
+ stupid_function_name_for_static_linking();
+
sys_exit (3);
}
p = "Numeric overflow on read";
break;
+ case ERROR_INTERNAL:
+ p = "Internal error in run-time library";
+ break;
+
+ case ERROR_INTERNAL_UNIT:
+ p = "Internal unit I/O error";
+ break;
+
+ case ERROR_DIRECT_EOR:
+ p = "Write exceeds length of DIRECT access record";
+ break;
+
+ case ERROR_SHORT_RECORD:
+ p = "I/O past end of record on unformatted file";
+ break;
+
+ case ERROR_CORRUPT_FILE:
+ p = "Unformatted file structure has been corrupted";
+ break;
+
default:
p = "Unknown error code";
break;
/* generate_error()-- Come here when an error happens. This
- * subroutine is called if it is possible to continue on after the
- * error. If an IOSTAT variable exists, we set it. If the IOSTAT or
- * ERR label is present, we return, otherwise we terminate the program
- * after print a message. The error code is always required but the
+ * subroutine is called if it is possible to continue on after the error.
+ * If an IOSTAT or IOMSG variable exists, we set it. If IOSTAT or
+ * ERR labels are present, we return, otherwise we terminate the program
+ * after printing a message. The error code is always required but the
* message parameter can be NULL, in which case a string describing
* the most recent operating system error is used. */
void
-generate_error (int family, const char *message)
+generate_error (st_parameter_common *cmp, int family, const char *message)
{
/* Set the error status. */
- if (ioparm.iostat != NULL)
- *ioparm.iostat = family;
+ if ((cmp->flags & IOPARM_HAS_IOSTAT))
+ *cmp->iostat = (family == ERROR_OS) ? errno : family;
+
+ if (message == NULL)
+ message =
+ (family == ERROR_OS) ? get_oserror () : translate_error (family);
+
+ if (cmp->flags & IOPARM_HAS_IOMSG)
+ cf_strcpy (cmp->iomsg, cmp->iomsg_len, message);
/* Report status back to the compiler. */
+ cmp->flags &= ~IOPARM_LIBRETURN_MASK;
switch (family)
{
case ERROR_EOR:
- ioparm.library_return = LIBRARY_EOR;
- if (ioparm.eor != 0)
+ cmp->flags |= IOPARM_LIBRETURN_EOR;
+ if ((cmp->flags & IOPARM_EOR))
return;
break;
case ERROR_END:
- ioparm.library_return = LIBRARY_END;
- if (ioparm.end != 0)
+ cmp->flags |= IOPARM_LIBRETURN_END;
+ if ((cmp->flags & IOPARM_END))
return;
break;
default:
- ioparm.library_return = LIBRARY_ERROR;
- if (ioparm.err != 0)
+ cmp->flags |= IOPARM_LIBRETURN_ERROR;
+ if ((cmp->flags & IOPARM_ERR))
return;
break;
}
/* Return if the user supplied an iostat variable. */
- if (ioparm.iostat != NULL)
+ if ((cmp->flags & IOPARM_HAS_IOSTAT))
return;
/* Terminate the program */
- if (message == NULL)
- message =
- (family == ERROR_OS) ? get_oserror () : translate_error (family);
+ recursion_check ();
+ show_locus (cmp);
+ 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. */
+
+notification
+notification_std (int std)
+{
+ int warning;
+
+ if (!compile_options.pedantic)
+ return SILENT;
+
+ warning = compile_options.warn_std & std;
+ if ((compile_options.allow_std & std) != 0 && !warning)
+ return SILENT;
+
+ return warning ? WARNING : ERROR;
+}
+
+
+
+/* Possibly issue a warning/error about use of a nonstandard (or deleted)
+ feature. An error/warning will be issued if the currently selected
+ standard does not contain the requested bits. */
- runtime_error (message);
+try
+notify_std (st_parameter_common *cmp, int std, const char * message)
+{
+ int warning;
+
+ if (!compile_options.pedantic)
+ return SUCCESS;
+
+ warning = compile_options.warn_std & std;
+ if ((compile_options.allow_std & std) != 0 && !warning)
+ return SUCCESS;
+
+ if (!warning)
+ {
+ recursion_check ();
+ show_locus (cmp);
+ st_printf ("Fortran runtime error: %s\n", message);
+ sys_exit (2);
+ }
+ else
+ {
+ show_locus (cmp);
+ st_printf ("Fortran runtime warning: %s\n", message);
+ }
+ return FAILURE;
}
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