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/* vms_exit.c
*
* Wrapper for the VMS exit() command to tranlate UNIX codes to be
* encoded for POSIX, but also have VMS severity levels.
* The posix_exit() variant only sets a severity level for status code 1.
*
* Author: John E. Malmberg
*/
/* Copyright (C) 2014-2016 Free Software Foundation, Inc.
GNU Make 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 of the License, or (at your option) any later
version.
GNU Make 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
this program. If not, see <http://www.gnu.org/licenses/>. */
/* Per copyright assignment agreement with the Free Software Foundation
this software may be available under under other license agreements
and copyrights. */
#include <makeint.h>
#include <stsdef.h>
void
decc$exit (int status);
#ifndef C_FACILITY_NO
# define C_FACILITY_NO 0x350000
#endif
/* Lowest legal non-success VMS exit code is 8 */
/* GNU make only defines codes 0, 1, 2 */
/* So assume any exit code > 8 is a VMS exit code */
#ifndef MAX_EXPECTED_EXIT_CODE
# define MAX_EXPECTED_EXIT_CODE 7
#endif
/* Build a Posix Exit with VMS severity */
void
vms_exit (int status)
{
int vms_status;
/* Fake the __posix_exit with severity added */
/* Undocumented correct way to do this. */
vms_status = 0;
/* The default DECC definition is not compatible with doing a POSIX_EXIT */
/* So fix it. */
if (status == EXIT_FAILURE)
status = MAKE_FAILURE;
/* Trivial case exit success */
if (status == 0)
decc$exit (STS$K_SUCCESS);
/* Is this a VMS status then just take it */
if (status > MAX_EXPECTED_EXIT_CODE)
{
/* Make sure that the message inhibit is set since message has */
/* already been displayed. */
vms_status = status | STS$M_INHIB_MSG;
decc$exit (vms_status);
}
/* Unix status codes are limited to 1 byte, so anything larger */
/* is a probably a VMS exit code and needs to be passed through */
/* A lower value can be set for a macro. */
/* Status 0 is always passed through as it is converted to SS$_NORMAL */
/* Always set the message inhibit bit */
vms_status = C_FACILITY_NO | 0xA000 | STS$M_INHIB_MSG;
vms_status |= (status << 3);
/* STS$K_ERROR is for status that stops makefile that a simple */
/* Rerun of the makefile will not fix. */
if (status == MAKE_FAILURE)
vms_status |= STS$K_ERROR;
else if (status == MAKE_TROUBLE)
{
/* Make trouble is for when make was told to do nothing and */
/* found that a target was not up to date. Since a second */
/* of make will produce the same condition, this is of */
/* Error severity */
vms_status |= STS$K_ERROR;
}
decc$exit (vms_status);
}
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