somake/bin/dosys.cc
Georg Sauthoff 6804ba69d6 import Sun's dmake from illumos
Source:

svn export https://github.com/illumos/illumos-gate/trunk/usr/src/cmd/make/

Yes, github also has a Subversion compatible interface - which seems to
be useful when one is only interested in a set of files.

The Github Subversion server printed: Exported revision 15816.

This corresponds to:
67c3092ccd/usr/src/cmd/make
2016-08-21 23:34:14 +02:00

164 lines
4 KiB
C++

/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2004 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/*
* dosys.cc
*
* Execute one commandline
*/
/*
* Included files
*/
#include <fcntl.h> /* open() */
#include <mk/defs.h>
#include <mksh/dosys.h> /* doshell(), doexec() */
#include <mksh/misc.h> /* getmem() */
#include <sys/stat.h> /* open() */
#include <unistd.h> /* getpid() */
/*
* Defined macros
*/
/*
* typedefs & structs
*/
/*
* Static variables
*/
static int filter_file;
static char *filter_file_name;
/*
* File table of contents
*/
static void redirect_stderr(void);
/*
* dosys(command, ignore_error, call_make, silent_error, target)
*
* Check if command string contains meta chars and dispatch to
* the proper routine for executing one command line.
*
* Return value:
* Indicates if the command execution failed
*
* Parameters:
* command The command to run
* ignore_error Should make abort when an error is seen?
* call_make Did command reference $(MAKE) ?
* silent_error Should error messages be suppressed for pmake?
* target Target we are building
*
* Global variables used:
* do_not_exec_rule Is -n on?
* working_on_targets We started processing real targets
*/
Doname
dosys(register Name command, register Boolean ignore_error, register Boolean call_make, Boolean silent_error, Boolean always_exec, Name target)
{
timestruc_t before;
register int length = command->hash.length;
Wstring wcb(command);
register wchar_t *p = wcb.get_string();
register wchar_t *q;
Doname result;
/* Strip spaces from head of command string */
while (iswspace(*p)) {
p++, length--;
}
if (*p == (int) nul_char) {
return build_failed;
}
/* If we are faking it we just return */
if (do_not_exec_rule &&
working_on_targets &&
!call_make &&
!always_exec) {
return build_ok;
}
/* no_action_was_taken is used to print special message */
no_action_was_taken = false;
/* Copy string to make it OK to write it. */
q = ALLOC_WC(length + 1);
(void) wcscpy(q, p);
/* Write the state file iff this command uses make. */
if (call_make && command_changed) {
write_state_file(0, false);
}
make_state->stat.time = file_no_time;
(void)exists(make_state);
before = make_state->stat.time;
/*
* Run command directly if it contains no shell meta chars,
* else run it using the shell.
*/
if (await(ignore_error,
silent_error,
target,
wcb.get_string(),
command->meta ?
doshell(q, ignore_error,
stdout_file, stderr_file, 0) :
doexec(q, ignore_error,
stdout_file, stderr_file,
vroot_path, 0),
NULL,
-1
)) {
result = build_ok;
} else {
result = build_failed;
}
retmem(q);
if ((report_dependencies_level == 0) &&
call_make) {
make_state->stat.time = file_no_time;
(void)exists(make_state);
if (before == make_state->stat.time) {
return result;
}
makefile_type = reading_statefile;
if (read_trace_level > 1) {
trace_reader = true;
}
temp_file_number++;
(void) read_simple_file(make_state,
false,
false,
false,
false,
false,
true);
trace_reader = false;
}
return result;
}