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95 lines
3 KiB
C
95 lines
3 KiB
C
/* vms_exit.c
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*
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* Wrapper for the VMS exit() command to tranlate UNIX codes to be
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* encoded for POSIX, but also have VMS severity levels.
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* The posix_exit() variant only sets a severity level for status code 1.
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*
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* Author: John E. Malmberg
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*/
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/* Copyright (C) 2014-2016 Free Software Foundation, Inc.
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GNU Make is free software; you can redistribute it and/or modify it under the
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terms of the GNU General Public License as published by the Free Software
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Foundation; either version 3 of the License, or (at your option) any later
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version.
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GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along with
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this program. If not, see <http://www.gnu.org/licenses/>. */
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/* Per copyright assignment agreement with the Free Software Foundation
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this software may be available under under other license agreements
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and copyrights. */
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#include <makeint.h>
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#include <stsdef.h>
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void
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decc$exit (int status);
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#ifndef C_FACILITY_NO
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# define C_FACILITY_NO 0x350000
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#endif
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/* Lowest legal non-success VMS exit code is 8 */
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/* GNU make only defines codes 0, 1, 2 */
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/* So assume any exit code > 8 is a VMS exit code */
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#ifndef MAX_EXPECTED_EXIT_CODE
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# define MAX_EXPECTED_EXIT_CODE 7
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#endif
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/* Build a Posix Exit with VMS severity */
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void
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vms_exit (int status)
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{
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int vms_status;
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/* Fake the __posix_exit with severity added */
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/* Undocumented correct way to do this. */
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vms_status = 0;
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/* The default DECC definition is not compatible with doing a POSIX_EXIT */
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/* So fix it. */
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if (status == EXIT_FAILURE)
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status = MAKE_FAILURE;
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/* Trivial case exit success */
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if (status == 0)
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decc$exit (STS$K_SUCCESS);
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/* Is this a VMS status then just take it */
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if (status > MAX_EXPECTED_EXIT_CODE)
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{
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/* Make sure that the message inhibit is set since message has */
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/* already been displayed. */
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vms_status = status | STS$M_INHIB_MSG;
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decc$exit (vms_status);
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}
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/* Unix status codes are limited to 1 byte, so anything larger */
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/* is a probably a VMS exit code and needs to be passed through */
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/* A lower value can be set for a macro. */
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/* Status 0 is always passed through as it is converted to SS$_NORMAL */
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/* Always set the message inhibit bit */
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vms_status = C_FACILITY_NO | 0xA000 | STS$M_INHIB_MSG;
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vms_status |= (status << 3);
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/* STS$K_ERROR is for status that stops makefile that a simple */
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/* Rerun of the makefile will not fix. */
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if (status == MAKE_FAILURE)
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vms_status |= STS$K_ERROR;
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else if (status == MAKE_TROUBLE)
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{
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/* Make trouble is for when make was told to do nothing and */
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/* found that a target was not up to date. Since a second */
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/* of make will produce the same condition, this is of */
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/* Error severity */
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vms_status |= STS$K_ERROR;
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}
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decc$exit (vms_status);
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}
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