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build_target.c
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/*
** FACILITY: MMK
**
** ABSTRACT: Routines for performing builds.
**
** MODULE DESCRIPTION:
**
** This module contains routines that are used to seek out
** dependencies, determine if targets need to be updated, and
** actually carry out those updates.
**
** AUTHOR: M. Madison
**
** Copyright (c) 2008, Matthew Madison.
** Copyright (c) 2012, Endless Software Solutions.
**
** All rights reserved.
**
** Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions
** are met:
**
** * Redistributions of source code must retain the above
** copyright notice, this list of conditions and the following
** disclaimer.
** * Redistributions in binary form must reproduce the above
** copyright notice, this list of conditions and the following
** disclaimer in the documentation and/or other materials provided
** with the distribution.
** * Neither the name of the copyright owner nor the names of any
** other contributors may be used to endorse or promote products
** derived from this software without specific prior written
** permission.
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
**
** CREATION DATE: 21-AUG-1992
**
** MODIFICATION HISTORY:
**
** 21-AUG-1992 V1.0 Madison Initial coding.
** 27-AUG-1992 V1.1 Madison Comments.
** 29-SEP-1992 V1.2 Madison Add support for /FORCE, /FROM, /OUT.
** 12-OCT-1992 V1.2-1 Madison Handle generic sources case better.
** 02-APR-1993 V1.3 Madison Handle ignore error flag.
** 09-APR-1993 V1.3-1 Madison Comments.
** 29-APR-1993 V1.3-2 Madison Fix SYS$OUTPUT conflicts.
** 04-JUN-1993 V1.4 Madison Add IGNORE support.
** 07-JUN-1993 V1.5 Madison Provide changed-source list.
** 21-AUG-1993 V1.6 Madison Don't assume first source is main.
** 24-SEP-1993 V1.6-1 Madison Set have_rdt on built targets when /FROM.
** 17-OCT-1993 V1.7 Madison Eliminate need for permanent libfiles.
** 20-OCT-1993 V1.8 Madison Add ctrl-T AST support.
** 22-OCT-1993 V1.8-1 Madison Improve handling of intermediate files.
** 22-NOV-1993 V1.8-2 Madison Have Build_Target use Parse_Objects,
** fix trgobj setting.
** 01-DEC-1993 V1.8-3 Madison Have built-in rules honor /IGNORE setting.
** 02-DEC-1993 V1.8-4 Madison Backout intermediate-deletion stuff.
** 09-DEC-1993 V1.8-5 Madison Remove extraneous extract_name call.
** 12-DEC-1993 V1.9 Madison Support for $(MMS) macro.
** 14-APR-1994 V1.9-1 Madison Fix build of changed-sources list.
** 06-MAY-1994 V1.9-2 Madison Output @-prefixed command on /NOACTION.
** 27-JUN-1994 V1.9-3 Madison Fix misplaced break.
** 01-JUL-1994 V2.0 Madison Add CMS support.
** 11-JUL-1994 V2.0-1 Madison Fix the way .DEFAULT is handled.
** 12-JUL-1994 V2.1 Madison Fix some other MMS discrepancies.
** 14-JUL-1994 V2.2 Madison Add prefixing on inference rules.
** 22-JUL-1994 V2.2-1 Madison Let prefixed rules inherit actions from
** generics.
** 22-AUG-1994 V2.2-2 Madison Edit out the KILL_INTERMEDIATES stuff.
** 28-DEC-1994 V2.3 Madison Allow for cmdqptr == 0 case; let
** generic targets have no action lists.
** 10-JAN-1995 V2.3-1 Madison Handle command echoing specially.
** 12-JAN-1995 V2.3-2 Madison Handle line splits better.
** 21-JUN-1995 V2.4 Madison Support /SKIP, /CHECK.
** 21-JUL-1995 V2.4-1 Madison Fix for /SKIP.
** 06-NOV-1995 V2.4-2 Madison Fix use of generic inference rules.
** 23-DEC-1996 V2.5 Madison Support forced commands on rules.
** 23-MAR-1997 V2.5-1 Madison Set symbol MMS$STATUS to action status.
** 07-SEP-1998 V2.5-2 Madison Fix endless loop on long cmd tokens.
** 27-DEC-1998 V2.6 Madison Prototype cleanup.
** 14-JUL-2012 V2.7 Sneddon github issue #1: add support for
** extended DCL command line. Thanks to
** Craig A. Berry.
** 28-NOV-2012 V2.8 Sneddon Support /VERIFY=ALL.
** 08-DEC-2012 V2.9-1 Craig Berry Unconditionally update double colon
** targets with no sources, but not all
** generic targets.
**--
*/
#pragma module BUILD_TARGET "V2.8-1"
#include "mmk.h"
#include "globals.h"
#include <rmsdef.h>
#include <libclidef.h>
/*
** Forward declarations
*/
void Build_Target(char *);
struct DEPEND *find_dependency(struct OBJECT *, int);
static int needs_updating(struct DEPEND *, struct RULE **,
struct OBJREF **, struct QUE *);
static int do_build(struct OBJECT *, int);
static void perform_update(struct DEPEND *, struct RULE *,
struct OBJREF *, struct QUE *);
void close_subprocess(void);
static unsigned int echo_ast();
static unsigned int send_cmd_and_wait(SPHANDLE *, char *, int, unsigned int *);
static void execute_command(SPHANDLE *, struct CMD *, char *);
/*
** Statics used with the subprocess and SP_MGR stuff
*/
static SPHANDLE spctx = 0;
static unsigned int static_status, command_complete;
static $DESCRIPTOR(ini_dsc1, "MMK___OPEN = \"OPEN\" !'F$VERIFY(0,0)'");
static $DESCRIPTOR(ini_dsc2, "MMK___SET = \"SET\" !'F$VERIFY(0,0)'");
static $DESCRIPTOR(ini_dsc3, "MMK___SET NOON");
static $DESCRIPTOR(ini_dsc4, "MMK___OPEN/WRITE MMK___OUTPUT SYS$OUTPUT:");
#define EOM_TEXT "MMK____status="
#define EOM_LEN 14
#define EOM_CMD1 "MMK____status = F$INTEGER($STATUS) !'F$VERIFY(0,0)'"
#define EOM_CMD2 "MMK___WRITE = \"WRITE\""
#define EOM_CMD3 "MMK___WRITE MMK___OUTPUT \"MMK____status=\",MMK____status"
/*
**++
** ROUTINE: Build_Target
**
** FUNCTIONAL DESCRIPTION:
**
** Builds a target specified by name. If the name is null,
** we just build the first target in the dependency list.
**
** RETURNS: void (errors are signaled)
**
** PROTOTYPE:
**
** Build_Target(char *name)
**
** name: ASCIZ_string, read only, by reference
**
** IMPLICIT INPUTS: None.
**
** IMPLICIT OUTPUTS: None.
**
** COMPLETION CODES: None.
**
** SIDE EFFECTS: None.
**
**--
*/
void Build_Target (char *name) {
struct DEPEND *dep;
if (*name == '\0') {
dep = dependencies.flink;
if (dep == &dependencies) {
lib$signal(MMK__NOTARGETS, 0);
return;
}
make_object_name(name, dep->target);
do_build(dep->target, 0);
} else {
struct QUE objque;
struct OBJECT *obj, *obj2;
char *cp;
objque.head = objque.tail = &objque;
Parse_Objects(name, strlen(name), &objque, 1);
if (objque.head == &objque) {
lib$signal(MMK__NOSUCHTRG, 1, name);
return;
}
queue_remove(objque.head, &obj);
dep = find_dependency(obj, 1);
if (dep == (struct DEPEND *) 0) {
lib$signal(MMK__NOSUCHTRG, 1, name);
return;
}
make_object_name(name, dep->target);
do_build(dep->target, 0);
}
} /* Build_Target */
/*
**++
** ROUTINE: find_dependency
**
** FUNCTIONAL DESCRIPTION:
**
** Locates a dependency rule for a particular object. If one
** doesn't exist, we use the suffixes list and build rules to try
** and fake one based on the target suffix.
**
** RETURNS: struct DEPEND *
**
** PROTOTYPE:
**
** find_dependency(struct OBJECT *xobj, int fakeit)
**
** xobj: OBJECT structure, read only, by reference
**
** IMPLICIT INPUTS: dependencies, dep_internal
**
** IMPLICIT OUTPUTS: dep_internal may be updated.
**
** COMPLETION CODES:
** 0: no dependency found
** non-0: pointer to found dependency rule
**
** SIDE EFFECTS: None.
**
**--
*/
struct DEPEND *find_dependency (struct OBJECT *xobj, int fakeit) {
struct DEPEND *dep;
struct SFX *s;
struct RULE *r, *xr;
struct CMD *cmd;
struct OBJECT *obj, *obj2;
struct OBJREF *or;
char fspec[MMK_S_FILE], *cp, ftype[MMK_S_SFX], basename[MMK_S_FILE];
int bnlen;
/*
** First search the real dependencies list
*/
for (dep = dependencies.flink; dep != &dependencies; dep = dep->flink) {
if (xobj->type == dep->target->type) {
if (strcmp(dep->target->name, xobj->name) == 0) {
if (xobj->type == MMK_K_OBJ_LIBMOD) {
if (strcmp(xobj->libfile->name,
dep->target->libfile->name) == 0) {
return dep;
}
} else return dep;
}
}
}
/*
** If we're not supposed to fake one up, don't bother checking the
** internal dependency list, and don't try to fake one, either.
*/
if (!fakeit) return 0;
/*
** Now search the internal list, which we built ourselves during description
** parsing time (for library modules).
*/
for (dep = dep_internal.flink; dep != &dep_internal; dep = dep->flink) {
if (xobj->type == dep->target->type) {
if (strcmp(dep->target->name, xobj->name) == 0) {
if (xobj->type == MMK_K_OBJ_LIBMOD) {
if (strcmp(xobj->libfile->name,
dep->target->libfile->name) == 0) {
return dep;
}
} else return dep;
}
}
}
/*
** Nothing in our lists; see if we can fake one up.
*/
extract_filetype(ftype, xobj->name);
s = (ftype[0] == '\0') ? 0 : find_suffix(ftype, -1);
if (s != 0) {
for (s = s->flink; s != &suffixes; s = s->flink) {
int check_cms, slen;
/*
** Don't use the CMS suffixes if we're not using CMS
*/
slen = strlen(s->value);
check_cms = s->value[slen-1] == '~';
if (check_cms && !use_cms) continue;
xr = find_rule(ftype, s->value);
if (xr != 0) {
r = scan_rule_list(xr, xobj->name, 0);
if (r != 0) {
dep = mem_get_depend();
cmd = mem_get_cmd();
dep->cmdqptr = cmd->flink = cmd->blink = cmd;
obj = mem_get_object();
dep->target = obj;
obj->type = MMK_K_OBJ_FILE;
strcpy(obj->name, xobj->name);
strcpy(obj->sfx, ftype);
if ((obj2 = Find_Object(obj)) == NULL) {
Insert_Object(obj);
} else {
mem_free_object(obj);
obj = obj2;
}
dep->target = obj;
obj = mem_get_object();
obj->type = check_cms ? MMK_K_OBJ_CMSFILE : MMK_K_OBJ_FILE;
strcpy(obj->sfx, s->value);
if (r->srcpfxlen == 0 && r->trgpfxlen == 0) {
bnlen = extract_name(basename, xobj->name);
} else {
bnlen = extract_filename(basename, xobj->name);
memcpy(obj->name, r->srcpfx, r->srcpfxlen);
}
memcpy(obj->name+r->srcpfxlen, basename, bnlen);
strcpy(obj->name+(r->srcpfxlen+bnlen), r->src);
if ((obj2 = Find_Object(obj)) == NULL) {
Insert_Object(obj);
} else {
mem_free_object(obj);
obj = obj2;
}
or = mem_get_objref();
or->obj = obj;
queue_insert(or, dep->sources.blink);
queue_insert(dep, dep_internal.blink);
return dep;
} /* if (r) */
} /* if (r) */
} /* for */
} /* if (s) */
if (default_rule) {
dep = mem_get_depend();
cmd = mem_get_cmd();
dep->cmdqptr = cmd->flink = cmd->blink = cmd;
obj = mem_get_object();
dep->target = xobj;
return dep;
}
return (struct DEPEND *) 0;
} /* find_dependency */
/*
**++
** ROUTINE: needs_updating
**
** FUNCTIONAL DESCRIPTION:
**
** Determines if a target needs to be updated, and locates
** a build rule for the target if the dependency doesn't include
** any commands for performing the update.
**
** RETURNS: int
**
** PROTOTYPE:
**
** needs_updating(struct DEPEND *dep, struct RULE **rule);
**
** dep: DEPEND structure, read only, by refernce
** rule: pointer to RULE structure, write only, by reference
**
** IMPLICIT INPUTS: None.
**
** IMPLICIT OUTPUTS: None.
**
** COMPLETION CODES:
** 0: no update needed
** 1: update needed
**
** SIDE EFFECTS: None.
**
**--
*/
static int needs_updating (struct DEPEND *dep, struct RULE **rule,
struct OBJREF **srcref, struct QUE *chgque) {
struct OBJECT *tobj, *trgobj;
struct OBJREF *obj, *obj2;
struct RULE *r;
struct SFX *sfx;
TIME junktime;
char srcnam[40], tmp[256], target_name[256];
int doit, target_noexist, set_rdt;
unsigned int status;
if (do_log) {
make_object_name(target_name, dep->target);
lib$signal(MMK__CHECKUPD, 1, target_name);
}
/*
** /FORCE causes unconditional build. /FROM_SOURCES does too, but
** we use the have_rdt flag to indicate that a target has already been
** built.
*/
doit = force;
if (from_sources) {
if (dep->target->have_rdt) {
return 0;
} else {
doit = 1;
}
}
/*
** Double colon targets with no sources are always updated.
*/
if (!doit) doit = (dep->double_colon
&& dep->sources.flink == dep->sources.blink
&& dep->sources.flink == &dep->sources);
/*
** Special handling for library modules; the file name we use is
** the library's filename.
*/
tobj = (dep->target->type == MMK_K_OBJ_LIBMOD ? dep->target->libfile :
dep->target);
/*
** For non-generic targets, we get the revision date/time (RDT) for
** the target. If the RDT lookup fails, we assume we should build (probably
** because the target doesn't exist). The get_rdt routine handles both
** files and library modules.
**
** If the file is locked, we don't try and build, to try and emulate
** some real weirdiness in MMS.
*/
trgobj = dep->target;
if (!doit) {
status = get_rdt(trgobj);
doit = !OK(status) && (status != RMS$_FLK);
target_noexist = doit;
if (do_log) {
if (doit) {
lib$signal(MMK__TRGLKUF, 1, target_name, status);
} else {
lib$signal(MMK__TRGRDT, 2, target_name, &trgobj->rdt);
}
}
} else target_noexist = 1;
/*
** Now we recursively descend the list of dependencies, making sure that
** all the sources we depend upon are also up-to-date (unless /FORCE was
** specified).
*/
for (obj = dep->sources.flink; obj != &dep->sources; obj = obj->flink) {
char source_name[256];
if (!force) {
int i;
struct OBJREF *o;
if (obj->obj->build_in_progress) {
char tmp[256];
make_object_name(tmp, obj->obj);
lib$signal(MMK__CIRCDEP, 1, tmp);
return -2;
}
/*
** For /SKIP_INTERMEDIATES, non-existent sources inherit the RDT of their
** targets.
*/
set_rdt = 0;
if (skip_intermediates) {
if (!target_noexist && obj->obj->type != MMK_K_OBJ_GENERIC
&& !OK(get_rdt(obj->obj))) {
obj->obj->rdt = trgobj->rdt;
obj->obj->have_rdt = 3; /* flag for later removal */
set_rdt = 1;
}
}
i = do_build(obj->obj, 1);
if (i == -2) return i;
if ((i < 0) && (set_rdt || !OK(get_rdt(obj->obj)))) {
while (queue_remove(chgque->head, &o)) mem_free_objref(o);
lib$signal(MMK__CANTUPD, 2, strlen(obj->obj->name),
obj->obj->name);
return -1;
}
}
/*
** If we still haven't decided to do the update yet, we compare the source's
** RDT with the target's.
**
** No matter what we still look up the RDT's so we can build the
** changed-sources queue (to define MMS$CHANGED_LIST).
*/
make_object_name(source_name, obj->obj);
status = get_rdt(obj->obj);
if (!OK(status)) {
if (noaction || obj->obj->type == MMK_K_OBJ_GENERIC) {
doit = 1;
} else if (!doit && obj->obj->libmodobj != trgobj) {
lib$signal(MMK__SRCERR, 1, source_name, status);
}
} else {
int xdoit;
if (!doit && do_log) {
lib$signal(MMK__SRCRDT, 2, source_name, &obj->obj->rdt);
}
xdoit = target_noexist;
if (!xdoit) {
if (!(obj->obj->rdt.long1 == trgobj->rdt.long1 &&
obj->obj->rdt.long2 == trgobj->rdt.long2) &&
OK(lib$sub_times(&obj->obj->rdt, &trgobj->rdt, &junktime))) xdoit = 1;
}
if (xdoit) {
for (obj2 = chgque->head; obj2 != (struct OBJREF *) chgque;
obj2 = obj2->flink) {
if (obj2->obj == obj->obj) break;
}
if (obj2 == (struct OBJREF *) chgque) {
obj2 = mem_get_objref();
obj2->obj = obj->obj;
queue_insert(obj2, chgque->tail);
}
if (!doit) doit = 1;
}
}
/*
** If we faked the source's RDT due to /SKIP_INTERMEDIATES processing, remove
** that setting now, so if the file is a non-intermediate in some other
** dependency, it will get built.
*/
if (set_rdt && obj->obj->have_rdt == 3) obj->obj->have_rdt = 0;
if (doit && do_log) {
lib$signal(MMK__TRGNUPD, 1, target_name);
}
}
/*
** If we have to perform the update, but we haven't any commands
** to do it with, we search the build rules list, and return the first
** one we find.
*/
if (!doit) return doit;
*rule = (struct RULE *) 0;
*srcref = (struct OBJREF *) 0;
sfx = find_suffix(tobj->sfx, -1);
if (sfx) {
struct OBJREF *o;
for (o = dep->sources.flink; o != &dep->sources; o = o->flink) {
if (o->obj->type == MMK_K_OBJ_LIBMOD) {
r = find_rule_with_prefixes(tobj, o->obj->libfile);
if (r != 0 && r->cmdque.flink == &r->cmdque) r = find_rule(tobj->sfx, o->obj->libfile->sfx);
} else if (o->obj->type == MMK_K_OBJ_FILE ||
o->obj->type == MMK_K_OBJ_CMSFILE) {
r = find_rule_with_prefixes(tobj, o->obj);
if (r != 0 && r->cmdque.flink == &r->cmdque) r = find_rule(tobj->sfx, o->obj->sfx);
} else continue;
if (r) {
*srcref = o;
*rule = r;
break;
}
}
}
return doit;
} /* needs_updating */
/*
**++
** ROUTINE: do_build
**
** FUNCTIONAL DESCRIPTION:
**
** Performs a build on the specified object.
**
** RETURNS: cond_value, longword (unsigned), write only, by value
**
** PROTOTYPE:
**
** do_build(struct OBJECT *obj, int intermediate);
**
** obj: OBJECT structure, read only, by reference
** intermediate: int, read only, by value
**
** IMPLICIT INPUTS: None.
**
** IMPLICIT OUTPUTS: None.
**
** COMPLETION CODES: None.
**
** SIDE EFFECTS: None.
**
**--
*/
static int do_build (struct OBJECT *obj, int intermediate) {
struct DEPEND *dep;
struct RULE *rule;
struct QUE chgque;
struct OBJREF *or, *srcref;
int doit, really_doit;
dep = find_dependency(obj, 1);
if (dep == (struct DEPEND *) 0) return -1;
really_doit = 0;
/*
** Loop to handle double-colon dependencies
*/
while (dep != 0) {
dep->target->build_in_progress = 1;
/*
** Even if /FORCE is specified, we call on needs_updating
** to look up any rules we might need.
*/
chgque.head = chgque.tail = &chgque;
doit = needs_updating(dep, &rule, &srcref, &chgque);
if ((doit > 0) || ((doit == 0) && force)) {
really_doit = 1;
if (check_status) {
did_an_update = 1;
} else {
perform_update(dep, rule, srcref, &chgque);
}
} else if (doit == -2) {
char tmp[256];
make_object_name(tmp, dep->target);
lib$signal(MMK__CONNEXION, 1, tmp);
}
while (queue_remove(chgque.head, &or)) mem_free_objref(or);
dep->target->build_in_progress = 0;
if (doit == -2) return -2;
dep = dep->dc_flink;
}
return really_doit;
} /* do_build */
/*
**++
** ROUTINE: perform_update
**
** FUNCTIONAL DESCRIPTION:
**
** Executes the commands to perform an update on a target.
**
** RETURNS: void (errors are signaled)
**
** PROTOTYPE:
**
** perform_update(struct DEPEND *dep, struct RULE *rule);
**
** dep: DEPEND structure, read only, by reference
** rule: RULE structure, read only, by reference
**
** IMPLICIT INPUTS: None.
**
** IMPLICIT OUTPUTS: None.
**
** COMPLETION CODES: None.
**
** SIDE EFFECTS: None.
**
**--
*/
static void perform_update (struct DEPEND *dep, struct RULE *xrule,
struct OBJREF *srcref, struct QUE *chgque) {
struct RULE *rule;
struct CMD *cmd;
char target_name[256];
unsigned int status;
int did_one;
/*
** If no commands and no build rule, what can we do??
*/
rule = (xrule == 0) ? default_rule : xrule;
make_object_name(target_name, dep->target);
if ((dep->cmdqptr == 0 || dep->cmdqptr->flink == dep->cmdqptr) &&
((rule == 0) || (rule->cmdque.flink == &rule->cmdque))) {
/*
** Allow generic targets to have null action lists -- just assume
** they have been updated. But don't set the "did_an_update" flag --
** let the updates of the generic's sources determine that.
*/
if (dep->target->type == MMK_K_OBJ_GENERIC) {
dep->target->have_rdt = 1;
sys$gettim(&(dep->target->rdt));
return;
}
lib$signal(MMK__NOACTION, 1, target_name);
return;
}
if (do_log) lib$signal(MMK__PERFUPD, 1, target_name);
did_one = 0;
/*
** Close any libraries that were opened by the GET_RDT module
*/
lbr_flush();
/*
** Create the subprocess if it doesn't exist, and pass it the commands
** from the .FIRST directive, if there was one.
*/
if (spctx == 0) {
status = sp_open(&spctx, &ini_dsc1, echo_ast, 0);
if (!OK(status)) lib$signal(status);
status = sp_send(&spctx, &ini_dsc2);
if (!OK(status)) lib$signal(status);
status = sp_send(&spctx, &ini_dsc3);
if (!OK(status)) lib$signal(status);
status = sp_send(&spctx, &ini_dsc4);
if (!OK(status)) lib$signal(status);
for (cmd = do_first.flink; cmd != &do_first; cmd = cmd->flink) {
execute_command(&spctx, cmd, target_name);
}
}
/*
** Create the local symbols for this dependency (MMS$SOURCE, MMS$TARGET, etc.),
** then pass the command strings (with symbols resolved) to the subprocess.
*/
Create_Local_Symbols(dep, srcref, chgque);
/*
** Check to see if there are any forced setup commands from the rule
** (or its parent)
*/
did_one = 0;
if (rule != 0) {
for (cmd = rule->cmdque.flink; cmd != &rule->cmdque; cmd = cmd->flink) {
if (!(cmd->flags & CMD_M_FORCED_FIRST)) continue;
did_one = 1;
execute_command(&spctx, cmd, target_name);
}
}
if (!did_one && rule != 0 && rule->parent != 0) {
for (cmd = rule->parent->cmdque.flink; cmd != &rule->parent->cmdque; cmd = cmd->flink) {
if (!(cmd->flags & CMD_M_FORCED_FIRST)) continue;
execute_command(&spctx, cmd, target_name);
}
}
did_one = 0;
/*
** Execute the dependency's commands, if any
*/
if (dep->cmdqptr != 0) {
for (cmd = dep->cmdqptr->flink; cmd != dep->cmdqptr; cmd = cmd->flink) {
did_one = 1;
execute_command(&spctx, cmd, target_name);
}
}
/*
** If we haven't executed a command yet, but there is a build rule available,
** execute those commands.
*/
if (!did_one && rule != 0) {
for (cmd = rule->cmdque.flink; cmd != &rule->cmdque; cmd = cmd->flink) {
if (cmd->flags & (CMD_M_FORCED_FIRST|CMD_M_FORCED_LAST)) continue;
execute_command(&spctx, cmd, target_name);
}
}
/*
** Check to see if there are any forced cleanup commands from the rule
** (or its parent)
*/
did_one = 0;
if (rule != 0) {
for (cmd = rule->cmdque.flink; cmd != &rule->cmdque; cmd = cmd->flink) {
if (!(cmd->flags & CMD_M_FORCED_LAST)) continue;
did_one = 1;
execute_command(&spctx, cmd, target_name);
}
}
if (!did_one && rule != 0 && rule->parent != 0) {
for (cmd = rule->parent->cmdque.flink; cmd != &rule->parent->cmdque; cmd = cmd->flink) {
if (!(cmd->flags & CMD_M_FORCED_LAST)) continue;
execute_command(&spctx, cmd, target_name);
}
}
/*
** Clean up after ourselves, and flag the fact that we've actually updated
** something. Also flush the revision date/time status, since the target
** may actually have changed.
*/
Clear_Local_Symbols();
did_an_update = 1;
/*
** Used to do this only if NOACTION or FROM_SOURCES was specified,
** but it may make sense to do it the way MMS does instead.
**
** Let's check to see if the target object was actually updated first.
*/
if (!noaction && dep->target->type != MMK_K_OBJ_GENERIC) {
TIME old_rdt;
memcpy(&old_rdt, &dep->target->rdt, sizeof(old_rdt));
dep->target->have_rdt = 0;
get_rdt(dep->target);
if ((old_rdt.long1 == dep->target->rdt.long1) &&
(old_rdt.long2 == dep->target->rdt.long2)) {
lib$signal(MMK__ACTNOUPD, 1, target_name);
}
}
dep->target->have_rdt = 1;
sys$gettim(&(dep->target->rdt));
} /* perform_update */
/*
**++
** ROUTINE: close_subprocess
**
** FUNCTIONAL DESCRIPTION:
**
** If we have created a subprocess, this closes it up.
**
** RETURNS: void
**
** PROTOTYPE:
**
** close_subprocess(void)
**
** IMPLICIT INPUTS: None.
**
** IMPLICIT OUTPUTS: None.
**
** COMPLETION CODES: None.
**
** SIDE EFFECTS: None.
**
**--
*/
void close_subprocess (void) {
struct CMD *cmd;
struct dsc$descriptor tmpdsc;
unsigned int status;
char *tmp;
int tmplen;
/*
** If we actually created a subprocess, close it down by sending out
** the commands from the .LAST directive (if there was one), then
** use sp_close to have it logged out.
*/
if (spctx) {
lbr_flush();
for (cmd = do_last.flink; cmd != &do_last; cmd = cmd->flink) {
Resolve_Symbols(cmd->cmd, strlen(cmd->cmd), &tmp, &tmplen, 0);
if (verify == 2 || verify && (noaction || !(cmd->flags & CMD_M_NOECHO))) {
INIT_SDESC(tmpdsc, tmplen, tmp);
put_command(&tmpdsc);
}
if (noaction) {
status = SS$_NORMAL;
} else {
unsigned int cmdstat;
status = send_cmd_and_wait(&spctx, tmp, tmplen, &cmdstat);
if (OK(status)) status = cmdstat;
}
free(tmp);
if (!OK(status)) break;
}
if (!noaction) {
sp_close(&spctx);
}
}
return;
} /* close_subprocess */
/*
**++
** ROUTINE: echo_ast
**
** FUNCTIONAL DESCRIPTION:
**
** Write-attention AST routine for the subprocess's output mailbox.
** Keeps reading the output and echoing it until it gets the magic
** end-of-command text.
**
** RETURNS: cond_value, longword (unsigned), write only, by value
**
** PROTOTYPE:
**
** echo_ast(void) (called from AST level)
**
** IMPLICIT INPUTS: None.
**
** IMPLICIT OUTPUTS: None.
**
** COMPLETION CODES: SS$_NORMAL always returned.
**
** SIDE EFFECTS: None.
**
**--
*/
static unsigned int echo_ast (void) {
struct dsc$descriptor rcvstr;
$DESCRIPTOR(end_marker,EOM_TEXT);
INIT_DYNDESC(rcvstr);
while (OK(sp_receive(&spctx, &rcvstr, 0))) {
if (rcvstr.dsc$w_length > EOM_LEN &&
strncmp(rcvstr.dsc$a_pointer, EOM_TEXT, 14) == 0) {
/*
** Fetch the command's exit status value from the end-of-command-marker text.
*/
lib$cvt_dtb(rcvstr.dsc$w_length-EOM_LEN,
rcvstr.dsc$a_pointer+EOM_LEN, &static_status);
str$free1_dx(&rcvstr);
command_complete = 1;
sys$wake(0,0);
break;
}
put_output(&rcvstr);
str$free1_dx(&rcvstr);
}
return SS$_NORMAL;
} /* echo_ast */
/*
**++
** ROUTINE: send_cmd_and_wait
**
** FUNCTIONAL DESCRIPTION:
**
** Issues a command to the subprocess and waits until it
** completes.
**
** RETURNS: cond_value, longword (unsigned), write only, by value
**
** PROTOTYPE:
**
** send_cmd_and_wait(SPHANDLE *spctxp, char *cmd, int cmdlen, unsigned int *cmdstat)
**
** spctxp: context, longword (unsigned), read only, by reference
** cmd: ASCIZ_string, read only, by reference
** cmdlen: signed_longword, longword (signed), read only, by value
** cmdstat: cond_value, longword (unsigned), write only, by reference
**
** IMPLICIT INPUTS: None.
**
** IMPLICIT OUTPUTS: None.
**
** COMPLETION CODES: Any status from the command executed in the subprocess.
**
** SIDE EFFECTS: None.
**
**--
*/
static unsigned int send_cmd_and_wait (SPHANDLE *spctxp, char *cmd, int cmdlen, unsigned int *cmdstat) {
struct dsc$descriptor sdsc, hdsc;
char *cp, ch, hexbuf[32];
int i, inquotes, last_quote;
static $DESCRIPTOR(eom_cmd1, EOM_CMD1);
static $DESCRIPTOR(eom_cmd2, EOM_CMD2);
static $DESCRIPTOR(eom_cmd3, EOM_CMD3);
static $DESCRIPTOR(hexfao, "%X!XL");
static $DESCRIPTOR(mms$status, "MMS$STATUS");
static unsigned int gsym = LIB$K_CLI_GLOBAL_SYM;
static_status = SS$_NORMAL;
command_complete = 0;
set_ctrlt_ast(sp_show_subprocess, *spctxp);
cp = cmd;
while (cmdlen > MMK_S_DCL) {
inquotes = 0;
for (i = 0; i < MMK_S_DCL; i++) {
if (cp[i] == '"') {