-/* Copyright (C) 2002-2014 Free Software Foundation, Inc.
+/* Copyright (C) 2002-2018 Free Software Foundation, Inc.
Contributed by Andy Vaught
This file is part of the GNU Fortran runtime library (libgfortran).
#include <unistd.h>
#endif
-#include <stdlib.h>
-
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#endif
2.3.5 also explains how co-images synchronize during termination.
- In libgfortran we have two ways of ending a program. exit(code) is
- a normal exit; calling exit() also causes open units to be
- closed. No backtrace or core dump is needed here. When something
- goes wrong, we have sys_abort() which tries to print the backtrace
- if -fbacktrace is enabled, and then dumps core; whether a core file
- is generated is system dependent. When aborting, we don't flush and
- close open units, as program memory might be corrupted and we'd
- rather risk losing dirty data in the buffers rather than corrupting
- files on disk.
+ In libgfortran we have three ways of ending a program. exit(code)
+ is a normal exit; calling exit() also causes open units to be
+ closed. No backtrace or core dump is needed here. For error
+ termination, we have exit_error(status), which prints a backtrace
+ if backtracing is enabled, then exits. Finally, when something
+ goes terribly wrong, we have sys_abort() which tries to print the
+ backtrace if -fbacktrace is enabled, and then dumps core; whether a
+ core file is generated is system dependent. When aborting, we don't
+ flush and close open units, as program memory might be corrupted
+ and we'd rather risk losing dirty data in the buffers rather than
+ corrupting files on disk.
*/
|| (options.backtrace == -1 && compile_options.backtrace == 1))
{
estr_write ("\nProgram aborted. Backtrace:\n");
- backtrace ();
+ show_backtrace (false);
signal (SIGABRT, SIG_DFL);
}
}
+/* Exit in case of error termination. If backtracing is enabled, print
+ backtrace, then exit. */
+
+void
+exit_error (int status)
+{
+ if (options.backtrace == 1
+ || (options.backtrace == -1 && compile_options.backtrace == 1))
+ {
+ estr_write ("\nError termination. Backtrace:\n");
+ show_backtrace (false);
+ }
+ exit (status);
+}
+
+
+
/* gfc_xtoa()-- Integer to hexadecimal conversion. */
const char *
#ifdef HAVE_STRERROR_L
locale_t myloc = newlocale (LC_CTYPE_MASK | LC_MESSAGES_MASK, "",
(locale_t) 0);
- char *p = strerror_l (errnum, myloc);
- freelocale (myloc);
+ char *p;
+ if (myloc)
+ {
+ p = strerror_l (errnum, myloc);
+ freelocale (myloc);
+ }
+ else
+ /* newlocale might fail e.g. due to running out of memory, fall
+ back to the simpler strerror. */
+ p = strerror (errnum);
return p;
#elif defined(HAVE_STRERROR_R)
#ifdef HAVE_USELOCALE
estr_write ("\n");
estr_write (message);
estr_write ("\n");
- exit (1);
+ exit_error (1);
}
iexport(os_error);
st_vprintf (message, ap);
va_end (ap);
estr_write ("\n");
- exit (2);
+ exit_error (2);
}
iexport(runtime_error);
st_vprintf (message, ap);
va_end (ap);
estr_write ("\n");
- exit (2);
+ exit_error (2);
}
iexport(runtime_error_at);
because hopefully it doesn't happen too often). */
stupid_function_name_for_static_linking();
- exit (3);
+ exit_error (3);
}
p = "Unformatted file structure has been corrupted";
break;
+ case LIBERROR_INQUIRE_INTERNAL_UNIT:
+ p = "Inquire statement identifies an internal file";
+ break;
+
default:
p = "Unknown error code";
break;
estr_write ("Fortran runtime error: ");
estr_write (message);
estr_write ("\n");
- exit (2);
+ exit_error (2);
}
iexport(generate_error);
estr_write ("Fortran runtime error: ");
estr_write (message);
estr_write ("\n");
- exit (2);
+ exit_error (2);
}
else
{