/*-
*-----------------------------------------------------------------------
* Lst_Insert --
* Insert a new node with the given piece of data before the given
* node in the given list.
*
* Side Effects:
* the firstPtr field will be changed if ln is the first node in the
* list.
*
*-----------------------------------------------------------------------
*/
void
Lst_Insert(Lst l, LstNode before, void *d)
{
LstNode nLNode;
if (before == NULL && !Lst_IsEmpty(l))
return;
if (before != NULL && Lst_IsEmpty(l))
return;
PAlloc(nLNode, LstNode);
nLNode->datum = d;
if (before == NULL) {
nLNode->prevPtr = nLNode->nextPtr = NULL;
l->firstPtr = l->lastPtr = nLNode;
} else {
nLNode->prevPtr = before->prevPtr;
nLNode->nextPtr = before;
if (nLNode->prevPtr != NULL)
nLNode->prevPtr->nextPtr = nLNode;
before->prevPtr = nLNode;
if (before == l->firstPtr)
l->firstPtr = nLNode;
}
}
/*-
*-----------------------------------------------------------------------
* Lst_Append --
* Create a new node and add it to the given list after the given node.
*
* Side Effects:
* A new ListNode is created and linked in to the List. The lastPtr
* field of the List will be altered if ln is the last node in the
* list. lastPtr and firstPtr will alter if the list was empty and
* ln was NULL.
*
*-----------------------------------------------------------------------
*/
void
Lst_Append(Lst l, LstNode after, void *d)
{
LstNode nLNode;
if (after == NULL && !Lst_IsEmpty(l))
return;
if (after != NULL && Lst_IsEmpty(l))
return;
PAlloc(nLNode, LstNode);
nLNode->datum = d;
if (after == NULL) {
nLNode->nextPtr = nLNode->prevPtr = NULL;
l->firstPtr = l->lastPtr = nLNode;
} else {
nLNode->prevPtr = after;
nLNode->nextPtr = after->nextPtr;
after->nextPtr = nLNode;
if (nLNode->nextPtr != NULL)
nLNode->nextPtr->prevPtr = nLNode;
if (after == l->lastPtr)
l->lastPtr = nLNode;
}
}
static void
read_all_make_rules(bool noBuiltins, bool read_depend,
Lst makefiles, struct dirs *d)
{
/*
* Read in the built-in rules first, followed by the specified
* makefile(s), or the default Makefile or makefile, in that order.
*/
if (!noBuiltins) {
LIST sysMkPath; /* Path of sys.mk */
Lst_Init(&sysMkPath);
Dir_Expand(_PATH_DEFSYSMK, systemIncludePath, &sysMkPath);
if (Lst_IsEmpty(&sysMkPath))
Fatal("make: no system rules (%s).", _PATH_DEFSYSMK);
read_makefile_list(&sysMkPath, d);
}
if (!Lst_IsEmpty(makefiles)) {
read_makefile_list(makefiles, d);
} else if (!ReadMakefile("makefile", d))
(void)ReadMakefile("Makefile", d);
/* read a .depend file, if it exists, and we're not building depend */
if (read_depend)
(void)ReadMakefile(".depend", d);
Parse_End();
}
static void
TargPrintNode(GNode *gn, bool full)
{
if (OP_NOP(gn->type))
return;
switch((gn->special & SPECIAL_MASK)) {
case SPECIAL_SUFFIXES:
case SPECIAL_PHONY:
case SPECIAL_ORDER:
case SPECIAL_NOTHING:
case SPECIAL_MAIN:
case SPECIAL_IGNORE:
return;
default:
break;
}
if (full) {
printf("# %d unmade prerequisites\n", gn->unmade);
if (! (gn->type & (OP_JOIN|OP_USE|OP_EXEC))) {
if (!is_out_of_date(gn->mtime)) {
printf("# last modified %s: %s\n",
time_to_string(&gn->mtime),
status_to_string(gn));
} else if (gn->built_status != UNKNOWN) {
printf("# non-existent (maybe): %s\n",
status_to_string(gn));
} else {
printf("# unmade\n");
}
}
}
if (!Lst_IsEmpty(&gn->parents)) {
printf("# parent targets: ");
Lst_Every(&gn->parents, TargPrintName);
fputc('\n', stdout);
}
if (gn->impliedsrc)
printf("# implied prerequisite: %s\n", gn->impliedsrc->name);
printf("%-16s", gn->name);
switch (gn->type & OP_OPMASK) {
case OP_DEPENDS:
printf(": "); break;
case OP_FORCE:
printf("! "); break;
case OP_DOUBLEDEP:
printf(":: "); break;
}
Targ_PrintType(gn->type);
Lst_Every(&gn->children, TargPrintName);
fputc('\n', stdout);
Lst_Every(&gn->commands, Targ_PrintCmd);
printf("\n\n");
if (gn->type & OP_DOUBLEDEP) {
LstNode ln;
for (ln = Lst_First(&gn->cohorts); ln != NULL; ln = Lst_Adv(ln))
TargPrintNode((GNode *)Lst_Datum(ln), full);
}
}
void
run_gnode_parallel(GNode *gn)
{
char *cmd;
gn->built_status = MADE;
/* XXX don't bother freeing cmd, we're dead anyways ! */
while ((cmd = Lst_DeQueue(&gn->expanded)) != NULL) {
if (setup_and_run_command(cmd, gn,
Lst_IsEmpty(&gn->expanded)) == 0)
break;
}
/* Normally, we don't reach this point, unless the last command
* ignores error, in which case we interpret the status ourselves.
*/
switch(gn->built_status) {
case MADE:
exit(0);
case ERROR:
exit(1);
default:
fprintf(stderr, "Could not run gnode, returned %d\n",
gn->built_status);
exit(1);
}
}
/*-
*-----------------------------------------------------------------------
* CondDoCommands --
* See if the given node exists and is an actual target with commands
* associated with it.
*
* Results:
* TRUE if the node exists as a target and has commands associated with
* it and FALSE if it does not.
*
* Side Effects:
* None.
*
*-----------------------------------------------------------------------
*/
static Boolean
CondDoCommands(int argLen MAKE_ATTR_UNUSED, const char *arg)
{
GNode *gn;
gn = Targ_FindNode(arg, TARG_NOCREATE);
return (gn != NULL) && !OP_NOP(gn->type) && !Lst_IsEmpty(gn->commands);
}
/*
* Do we need/want a .meta file ?
*/
static Boolean
meta_needed(GNode *gn, const char *dname, const char *tname,
char *objdir, int verbose)
{
struct stat fs;
if (verbose)
verbose = DEBUG(META);
/* This may be a phony node which we don't want meta data for... */
/* Skip .meta for .BEGIN, .END, .ERROR etc as well. */
/* Or it may be explicitly flagged as .NOMETA */
SKIP_META_TYPE(NOMETA);
/* Unless it is explicitly flagged as .META */
if (!(gn->type & OP_META)) {
SKIP_META_TYPE(PHONY);
SKIP_META_TYPE(SPECIAL);
SKIP_META_TYPE(MAKE);
}
/* Check if there are no commands to execute. */
if (Lst_IsEmpty(gn->commands)) {
if (verbose)
fprintf(debug_file, "Skipping meta for %s: no commands\n",
gn->name);
return FALSE;
}
if ((gn->type & (OP_META|OP_SUBMAKE)) == OP_SUBMAKE) {
/* OP_SUBMAKE is a bit too aggressive */
if (Lst_ForEach(gn->commands, is_submake, gn)) {
if (DEBUG(META))
fprintf(debug_file, "Skipping meta for %s: .SUBMAKE\n",
gn->name);
return FALSE;
}
}
/* The object directory may not exist. Check it.. */
if (cached_stat(dname, &fs) != 0) {
if (verbose)
fprintf(debug_file, "Skipping meta for %s: no .OBJDIR\n",
gn->name);
return FALSE;
}
/* make sure these are canonical */
if (cached_realpath(dname, objdir))
dname = objdir;
/* If we aren't in the object directory, don't create a meta file. */
if (!metaCurdirOk && strcmp(curdir, dname) == 0) {
if (verbose)
fprintf(debug_file, "Skipping meta for %s: .OBJDIR == .CURDIR\n",
gn->name);
return FALSE;
}
return TRUE;
}
bool
Job_CheckCommands(GNode *gn)
{
/* Alter our type to tell if errors should be ignored or things
* should not be printed so setup_and_run_command knows what to do.
*/
if (Targ_Ignore(gn))
gn->type |= OP_IGNORE;
if (Targ_Silent(gn))
gn->type |= OP_SILENT;
if (OP_NOP(gn->type) && Lst_IsEmpty(&gn->commands) &&
(gn->type & OP_LIB) == 0) {
/*
* No commands. Look for .DEFAULT rule from which we might infer
* commands
*/
if ((gn->type & OP_NODEFAULT) == 0 &&
(DEFAULT->type & OP_DUMMY) == 0 &&
!Lst_IsEmpty(&DEFAULT->commands)) {
/*
* Make only looks for a .DEFAULT if the node was never
* the target of an operator, so that's what we do too.
* If a .DEFAULT was given, we substitute its commands
* for gn's commands and set the IMPSRC variable to be
* the target's name The DEFAULT node acts like a
* transformation rule, in that gn also inherits any
* attributes or sources attached to .DEFAULT itself.
*/
Make_HandleUse(DEFAULT, gn);
Var(IMPSRC_INDEX, gn) = Var(TARGET_INDEX, gn);
} else if (is_out_of_date(Dir_MTime(gn))) {
/*
* The node wasn't the target of an operator we have no
* .DEFAULT rule to go on and the target doesn't
* already exist. There's nothing more we can do for
* this branch.
*/
return false;
}
}
return true;
}
/*-
*-----------------------------------------------------------------------
* Arch_LibOODate --
* Decide if a node with the OP_LIB attribute is out-of-date. Called
* from Make_OODate to make its life easier.
*
* There are several ways for a library to be out-of-date that are
* not available to ordinary files. In addition, there are ways
* that are open to regular files that are not available to
* libraries. A library that is only used as a source is never
* considered out-of-date by itself. This does not preclude the
* library's modification time from making its parent be out-of-date.
* A library will be considered out-of-date for any of these reasons,
* given that it is a target on a dependency line somewhere:
* Its modification time is less than that of one of its
* sources (gn->mtime < gn->cmgn->mtime).
* Its modification time is greater than the time at which the
* make began (i.e. it's been modified in the course
* of the make, probably by archiving).
* The modification time of one of its sources is greater than
* the one of its RANLIBMAG member (i.e. its table of contents
* is out-of-date). We don't compare of the archive time
* vs. TOC time because they can be too close. In my
* opinion we should not bother with the TOC at all since
* this is used by 'ar' rules that affect the data contents
* of the archive, not by ranlib rules, which affect the
* TOC.
*
* Input:
* gn The library's graph node
*
* Results:
* TRUE if the library is out-of-date. FALSE otherwise.
*
* Side Effects:
* The library will be hashed if it hasn't been already.
*
*-----------------------------------------------------------------------
*/
Boolean
Arch_LibOODate(GNode *gn)
{
Boolean oodate;
if (gn->type & OP_PHONY) {
oodate = TRUE;
} else if (OP_NOP(gn->type) && Lst_IsEmpty(gn->children)) {
oodate = FALSE;
} else if ((!Lst_IsEmpty(gn->children) && gn->cmgn == NULL) ||
(gn->mtime > now) ||
(gn->cmgn != NULL && gn->mtime < gn->cmgn->mtime)) {
oodate = TRUE;
} else {
#ifdef RANLIBMAG
struct ar_hdr *arhPtr; /* Header for __.SYMDEF */
int modTimeTOC; /* The table-of-contents's mod time */
arhPtr = ArchStatMember(gn->path, UNCONST(RANLIBMAG), FALSE);
if (arhPtr != NULL) {
modTimeTOC = (int)strtol(arhPtr->AR_DATE, NULL, 10);
if (DEBUG(ARCH) || DEBUG(MAKE)) {
fprintf(debug_file, "%s modified %s...", RANLIBMAG, Targ_FmtTime(modTimeTOC));
}
oodate = (gn->cmgn == NULL || gn->cmgn->mtime > modTimeTOC);
} else {
/*
* A library w/o a table of contents is out-of-date
*/
if (DEBUG(ARCH) || DEBUG(MAKE)) {
fprintf(debug_file, "No t.o.c....");
}
oodate = TRUE;
}
#else
oodate = FALSE;
#endif
}
return (oodate);
}
/***********************************************************************
* AllocPrefix
***********************************************************************
* SYNOPSIS: Allocate a new Prefix record
* CALLED BY: EXTERNAL
* RETURN: The Prefix * with only the generation field set.
* SIDE EFFECTS:
*
* STRATEGY:
*
* REVISION HISTORY:
* Name Date Description
* ---- ---- -----------
* ardeb 10/ 9/89 Initial Revision
*
***********************************************************************/
Prefix *
AllocPrefix()
{
Prefix *pp;
if (Lst_IsEmpty(freePrefixes)) {
pp = (Prefix *)malloc(sizeof(Prefix));
pp->generation = 0;
} else {
pp = (Prefix *)Lst_DeQueue(freePrefixes);
}
return(pp);
}
void
Make_HandleUse(GNode *cgn, /* The .USE node */
GNode *pgn) /* The target of the .USE node */
{
GNode *gn; /* A child of the .USE node */
LstNode ln; /* An element in the children list */
assert(cgn->type & (OP_USE|OP_TRANSFORM));
if ((cgn->type & OP_USE) || Lst_IsEmpty(&pgn->commands)) {
/* .USE or transformation and target has no commands
* -- append the child's commands to the parent. */
Lst_Concat(&pgn->commands, &cgn->commands);
}
for (ln = Lst_First(&cgn->children); ln != NULL;
ln = Lst_Adv(ln)) {
gn = (GNode *)Lst_Datum(ln);
if (Lst_AddNew(&pgn->children, gn)) {
Lst_AtEnd(&gn->parents, pgn);
pgn->unmade++;
}
}
pgn->type |= cgn->type & ~(OP_OPMASK|OP_USE|OP_TRANSFORM);
/*
* This child node is now "made", so we decrement the count of
* unmade children in the parent... We also remove the child
* from the parent's list to accurately reflect the number of
* decent children the parent has. This is used by Make_Run to
* decide whether to queue the parent or examine its children...
*/
if (cgn->type & OP_USE)
pgn->unmade--;
/* if the parent node doesn't have any location, then inherit the
* use stuff, since that gives us better error messages.
*/
if (!pgn->lineno) {
pgn->lineno = cgn->lineno;
pgn->fname = cgn->fname;
}
}
void
handle_all_jobs_output(void)
{
int nfds;
struct timeval timeout;
LstNode ln, ln2;
Job *job;
int i;
int status;
/* no jobs */
if (Lst_IsEmpty(&runningJobs))
return;
(void)fflush(stdout);
memcpy(actual_mask, output_mask, mask_size);
timeout.tv_sec = SEL_SEC;
timeout.tv_usec = SEL_USEC;
nfds = select(largest_fd+1, actual_mask, NULL, NULL, &timeout);
handle_all_signals();
for (ln = Lst_First(&runningJobs); nfds && ln != NULL; ln = ln2) {
ln2 = Lst_Adv(ln);
job = (Job *)Lst_Datum(ln);
job->flags &= ~JOB_DIDOUTPUT;
for (i = 1; i >= 0; i--) {
if (FD_ISSET(job->in[i].fd, actual_mask)) {
nfds--;
handle_job_output(job, i, false);
}
}
if (job->flags & JOB_DIDOUTPUT) {
if (waitpid(job->pid, &status, WNOHANG) == job->pid) {
remove_job(ln, status);
} else {
Lst_Requeue(&runningJobs, ln);
}
}
}
}
static bool
has_unmade_predecessor(GNode *gn)
{
LstNode ln;
if (Lst_IsEmpty(&gn->preds))
return false;
for (ln = Lst_First(&gn->preds); ln != NULL; ln = Lst_Adv(ln)) {
GNode *pgn = (GNode *)Lst_Datum(ln);
if (pgn->must_make && pgn->built_status == UNKNOWN) {
if (DEBUG(MAKE))
printf("predecessor %s not made yet.\n",
pgn->name);
return true;
}
}
return false;
}
static FILE *
meta_create(BuildMon *pbm, GNode *gn)
{
meta_file_t mf;
char buf[MAXPATHLEN];
char objdir[MAXPATHLEN];
char **ptr;
const char *dname;
const char *tname;
char *fname;
const char *cp;
char *p[4]; /* >= possible uses */
int i;
struct stat fs;
/* This may be a phony node which we don't want meta data for... */
/* Skip .meta for .BEGIN, .END, .ERROR etc as well. */
/* Or it may be explicitly flagged as .NOMETA */
SKIP_META_TYPE(NOMETA);
/* Unless it is explicitly flagged as .META */
if (!(gn->type & OP_META)) {
SKIP_META_TYPE(PHONY);
SKIP_META_TYPE(SPECIAL);
SKIP_META_TYPE(MAKE);
}
mf.fp = NULL;
i = 0;
dname = Var_Value(".OBJDIR", gn, &p[i++]);
tname = Var_Value(TARGET, gn, &p[i++]);
/* The object directory may not exist. Check it.. */
if (stat(dname, &fs) != 0) {
if (DEBUG(META))
fprintf(debug_file, "Skipping meta for %s: no .OBJDIR\n",
gn->name);
goto out;
}
/* Check if there are no commands to execute. */
if (Lst_IsEmpty(gn->commands)) {
if (DEBUG(META))
fprintf(debug_file, "Skipping meta for %s: no commands\n",
gn->name);
goto out;
}
/* make sure these are canonical */
if (realpath(dname, objdir))
dname = objdir;
/* If we aren't in the object directory, don't create a meta file. */
if (!metaCurdirOk && strcmp(curdir, dname) == 0) {
if (DEBUG(META))
fprintf(debug_file, "Skipping meta for %s: .OBJDIR == .CURDIR\n",
gn->name);
goto out;
}
if (!(gn->type & OP_META)) {
/* We do not generate .meta files for sub-makes */
if (Lst_ForEach(gn->commands, is_submake, gn)) {
if (DEBUG(META))
fprintf(debug_file, "Skipping meta for %s: .MAKE\n",
gn->name);
goto out;
}
}
if (metaVerbose) {
char *mp;
/* Describe the target we are building */
mp = Var_Subst(NULL, "${" MAKE_META_PREFIX "}", gn, 0);
if (*mp)
fprintf(stdout, "%s\n", mp);
free(mp);
}
/* Get the basename of the target */
if ((cp = strrchr(tname, '/')) == NULL) {
cp = tname;
} else {
cp++;
}
fflush(stdout);
if (strcmp(cp, makeDependfile) == 0)
goto out;
if (!writeMeta)
/* Don't create meta data. */
goto out;
fname = meta_name(gn, pbm->meta_fname, sizeof(pbm->meta_fname),
dname, tname);
#ifdef DEBUG_META_MODE
if (DEBUG(META))
fprintf(debug_file, "meta_create: %s\n", fname);
#endif
if ((mf.fp = fopen(fname, "w")) == NULL)
err(1, "Could not open meta file '%s'", fname);
fprintf(mf.fp, "# Meta data file %s\n", fname);
mf.gn = gn;
Lst_ForEach(gn->commands, printCMD, &mf);
fprintf(mf.fp, "CWD %s\n", getcwd(buf, sizeof(buf)));
fprintf(mf.fp, "TARGET %s\n", tname);
if (metaEnv) {
for (ptr = environ; *ptr != NULL; ptr++)
fprintf(mf.fp, "ENV %s\n", *ptr);
}
fprintf(mf.fp, "-- command output --\n");
fflush(mf.fp);
Var_Append(".MAKE.META.FILES", fname, VAR_GLOBAL);
Var_Append(".MAKE.META.CREATED", fname, VAR_GLOBAL);
gn->type |= OP_META; /* in case anyone wants to know */
if (metaSilent) {
gn->type |= OP_SILENT;
}
out:
for (i--; i >= 0; i--) {
if (p[i])
free(p[i]);
}
return (mf.fp);
}
/*-
*-----------------------------------------------------------------------
* Make_Update --
* Perform update on the parents of a node. Used by JobFinish once
* a node has been dealt with and by MakeStartJobs if it finds an
* up-to-date node.
*
* Input:
* cgn the child node
*
* Results:
* Always returns 0
*
* Side Effects:
* The unmade field of pgn is decremented and pgn may be placed on
* the toBeMade queue if this field becomes 0.
*
* If the child was made, the parent's flag CHILDMADE field will be
* set true.
*
* If the child is not up-to-date and still does not exist,
* set the FORCE flag on the parents.
*
* If the child wasn't made, the cmgn field of the parent will be
* altered if the child's mtime is big enough.
*
* Finally, if the child is the implied source for the parent, the
* parent's IMPSRC variable is set appropriately.
*
*-----------------------------------------------------------------------
*/
void
Make_Update(GNode *cgn)
{
GNode *pgn; /* the parent node */
char *cname; /* the child's name */
LstNode ln; /* Element in parents and iParents lists */
time_t mtime = -1;
char *p1;
Lst parents;
GNode *centurion;
/* It is save to re-examine any nodes again */
checked++;
cname = Var_Value(TARGET, cgn, &p1);
free(p1);
if (DEBUG(MAKE))
fprintf(debug_file, "Make_Update: %s%s\n", cgn->name, cgn->cohort_num);
/*
* If the child was actually made, see what its modification time is
* now -- some rules won't actually update the file. If the file still
* doesn't exist, make its mtime now.
*/
if (cgn->made != UPTODATE) {
mtime = Make_Recheck(cgn);
}
/*
* If this is a `::' node, we must consult its first instance
* which is where all parents are linked.
*/
if ((centurion = cgn->centurion) != NULL) {
if (!Lst_IsEmpty(cgn->parents))
Punt("%s%s: cohort has parents", cgn->name, cgn->cohort_num);
centurion->unmade_cohorts -= 1;
if (centurion->unmade_cohorts < 0)
Error("Graph cycles through centurion %s", centurion->name);
} else {
centurion = cgn;
}
parents = centurion->parents;
/* If this was a .ORDER node, schedule the RHS */
Lst_ForEach(centurion->order_succ, MakeBuildParent, Lst_First(toBeMade));
/* Now mark all the parents as having one less unmade child */
if (Lst_Open(parents) == SUCCESS) {
while ((ln = Lst_Next(parents)) != NULL) {
pgn = (GNode *)Lst_Datum(ln);
if (DEBUG(MAKE))
fprintf(debug_file, "inspect parent %s%s: flags %x, "
"type %x, made %d, unmade %d ",
pgn->name, pgn->cohort_num, pgn->flags,
pgn->type, pgn->made, pgn->unmade-1);
if (!(pgn->flags & REMAKE)) {
/* This parent isn't needed */
if (DEBUG(MAKE))
fprintf(debug_file, "- not needed\n");
continue;
}
if (mtime == 0 && !(cgn->type & OP_WAIT))
pgn->flags |= FORCE;
/*
* If the parent has the .MADE attribute, its timestamp got
* updated to that of its newest child, and its unmake
* child count got set to zero in Make_ExpandUse().
* However other things might cause us to build one of its
* children - and so we mustn't do any processing here when
* the child build finishes.
*/
if (pgn->type & OP_MADE) {
if (DEBUG(MAKE))
fprintf(debug_file, "- .MADE\n");
continue;
}
if ( ! (cgn->type & (OP_EXEC|OP_USE|OP_USEBEFORE))) {
if (cgn->made == MADE)
pgn->flags |= CHILDMADE;
(void)Make_TimeStamp(pgn, cgn);
}
/*
* A parent must wait for the completion of all instances
* of a `::' dependency.
*/
if (centurion->unmade_cohorts != 0 || centurion->made < MADE) {
if (DEBUG(MAKE))
fprintf(debug_file,
"- centurion made %d, %d unmade cohorts\n",
centurion->made, centurion->unmade_cohorts);
continue;
}
/* One more child of this parent is now made */
pgn->unmade -= 1;
if (pgn->unmade < 0) {
if (DEBUG(MAKE)) {
fprintf(debug_file, "Graph cycles through %s%s\n",
pgn->name, pgn->cohort_num);
Targ_PrintGraph(2);
}
Error("Graph cycles through %s%s", pgn->name, pgn->cohort_num);
}
/* We must always rescan the parents of .WAIT and .ORDER nodes. */
if (pgn->unmade != 0 && !(centurion->type & OP_WAIT)
&& !(centurion->flags & DONE_ORDER)) {
if (DEBUG(MAKE))
fprintf(debug_file, "- unmade children\n");
continue;
}
if (pgn->made != DEFERRED) {
/*
* Either this parent is on a different branch of the tree,
* or it on the RHS of a .WAIT directive
* or it is already on the toBeMade list.
*/
if (DEBUG(MAKE))
fprintf(debug_file, "- not deferred\n");
continue;
}
if (pgn->order_pred
&& Lst_ForEach(pgn->order_pred, MakeCheckOrder, 0)) {
/* A .ORDER rule stops us building this */
continue;
}
if (DEBUG(MAKE)) {
static int two = 2;
fprintf(debug_file, "- %s%s made, schedule %s%s (made %d)\n",
cgn->name, cgn->cohort_num,
pgn->name, pgn->cohort_num, pgn->made);
Targ_PrintNode(pgn, &two);
}
/* Ok, we can schedule the parent again */
pgn->made = REQUESTED;
(void)Lst_EnQueue(toBeMade, pgn);
}
Lst_Close(parents);
}
/*
* Set the .PREFIX and .IMPSRC variables for all the implied parents
* of this node.
*/
if (Lst_Open(cgn->iParents) == SUCCESS) {
char *cpref = Var_Value(PREFIX, cgn, &p1);
while ((ln = Lst_Next(cgn->iParents)) != NULL) {
pgn = (GNode *)Lst_Datum(ln);
if (pgn->flags & REMAKE) {
Var_Set(IMPSRC, cname, pgn, 0);
if (cpref != NULL)
Var_Set(PREFIX, cpref, pgn, 0);
}
}
free(p1);
Lst_Close(cgn->iParents);
}
}
/*-
*-----------------------------------------------------------------------
* Make_Recheck --
* Check the modification time of a gnode, and update it as described
* in the comments below.
*
* Results:
* returns 0 if the gnode does not exist, or its filesystem
* time if it does.
*
* Side Effects:
* the gnode's modification time and path name are affected.
*
*-----------------------------------------------------------------------
*/
time_t
Make_Recheck(GNode *gn)
{
time_t mtime = Dir_MTime(gn, 1);
#ifndef RECHECK
/*
* We can't re-stat the thing, but we can at least take care of rules
* where a target depends on a source that actually creates the
* target, but only if it has changed, e.g.
*
* parse.h : parse.o
*
* parse.o : parse.y
* yacc -d parse.y
* cc -c y.tab.c
* mv y.tab.o parse.o
* cmp -s y.tab.h parse.h || mv y.tab.h parse.h
*
* In this case, if the definitions produced by yacc haven't changed
* from before, parse.h won't have been updated and gn->mtime will
* reflect the current modification time for parse.h. This is
* something of a kludge, I admit, but it's a useful one..
* XXX: People like to use a rule like
*
* FRC:
*
* To force things that depend on FRC to be made, so we have to
* check for gn->children being empty as well...
*/
if (!Lst_IsEmpty(gn->commands) || Lst_IsEmpty(gn->children)) {
gn->mtime = now;
}
#else
/*
* This is what Make does and it's actually a good thing, as it
* allows rules like
*
* cmp -s y.tab.h parse.h || cp y.tab.h parse.h
*
* to function as intended. Unfortunately, thanks to the stateless
* nature of NFS (by which I mean the loose coupling of two clients
* using the same file from a common server), there are times
* when the modification time of a file created on a remote
* machine will not be modified before the local stat() implied by
* the Dir_MTime occurs, thus leading us to believe that the file
* is unchanged, wreaking havoc with files that depend on this one.
*
* I have decided it is better to make too much than to make too
* little, so this stuff is commented out unless you're sure it's ok.
* -- ardeb 1/12/88
*/
/*
* Christos, 4/9/92: If we are saving commands pretend that
* the target is made now. Otherwise archives with ... rules
* don't work!
*/
if (NoExecute(gn) || (gn->type & OP_SAVE_CMDS) ||
(mtime == 0 && !(gn->type & OP_WAIT))) {
if (DEBUG(MAKE)) {
fprintf(debug_file, " recheck(%s): update time from %s to now\n",
gn->name, Targ_FmtTime(gn->mtime));
}
gn->mtime = now;
}
else {
if (DEBUG(MAKE)) {
fprintf(debug_file, " recheck(%s): current update time: %s\n",
gn->name, Targ_FmtTime(gn->mtime));
}
}
#endif
return mtime;
}
/*-
*-----------------------------------------------------------------------
* Make_HandleUse --
* Function called by Make_Run and SuffApplyTransform on the downward
* pass to handle .USE and transformation nodes. It implements the
* .USE and transformation functionality by copying the node's commands,
* type flags and children to the parent node.
*
* A .USE node is much like an explicit transformation rule, except
* its commands are always added to the target node, even if the
* target already has commands.
*
* Input:
* cgn The .USE node
* pgn The target of the .USE node
*
* Results:
* none
*
* Side Effects:
* Children and commands may be added to the parent and the parent's
* type may be changed.
*
*-----------------------------------------------------------------------
*/
void
Make_HandleUse(GNode *cgn, GNode *pgn)
{
LstNode ln; /* An element in the children list */
#ifdef DEBUG_SRC
if ((cgn->type & (OP_USE|OP_USEBEFORE|OP_TRANSFORM)) == 0) {
fprintf(debug_file, "Make_HandleUse: called for plain node %s\n", cgn->name);
return;
}
#endif
if ((cgn->type & (OP_USE|OP_USEBEFORE)) || Lst_IsEmpty(pgn->commands)) {
if (cgn->type & OP_USEBEFORE) {
/*
* .USEBEFORE --
* prepend the child's commands to the parent.
*/
Lst cmds = pgn->commands;
pgn->commands = Lst_Duplicate(cgn->commands, NULL);
(void)Lst_Concat(pgn->commands, cmds, LST_CONCNEW);
Lst_Destroy(cmds, NULL);
} else {
/*
* .USE or target has no commands --
* append the child's commands to the parent.
*/
(void)Lst_Concat(pgn->commands, cgn->commands, LST_CONCNEW);
}
}
if (Lst_Open(cgn->children) == SUCCESS) {
while ((ln = Lst_Next(cgn->children)) != NULL) {
GNode *tgn, *gn = (GNode *)Lst_Datum(ln);
/*
* Expand variables in the .USE node's name
* and save the unexpanded form.
* We don't need to do this for commands.
* They get expanded properly when we execute.
*/
if (gn->uname == NULL) {
gn->uname = gn->name;
} else {
free(gn->name);
}
gn->name = Var_Subst(NULL, gn->uname, pgn, VARF_WANTRES);
if (gn->name && gn->uname && strcmp(gn->name, gn->uname) != 0) {
/* See if we have a target for this node. */
tgn = Targ_FindNode(gn->name, TARG_NOCREATE);
if (tgn != NULL)
gn = tgn;
}
(void)Lst_AtEnd(pgn->children, gn);
(void)Lst_AtEnd(gn->parents, pgn);
pgn->unmade += 1;
}
Lst_Close(cgn->children);
}
pgn->type |= cgn->type & ~(OP_OPMASK|OP_USE|OP_USEBEFORE|OP_TRANSFORM);
}
/*-
* main --
* The main function, for obvious reasons. Initializes variables
* and a few modules, then parses the arguments give it in the
* environment and on the command line. Reads the system makefile
* followed by either Makefile, makefile or the file given by the
* -f argument. Sets the MAKEFLAGS PMake variable based on all the
* flags it has received by then uses either the Make or the Compat
* module to create the initial list of targets.
*
* Results:
* If -q was given, exits -1 if anything was out-of-date. Else it exits
* 0.
*
* Side Effects:
* The program exits when done. Targets are created. etc. etc. etc.
*/
int
main(int argc, char **argv)
{
Lst targs; /* target nodes to create -- passed to Make_Init */
Boolean outOfDate; /* FALSE if all targets up to date */
Boolean hadErrors; /* TRUE if we had errors */
const char *p;
create = Lst_Init();
makefiles = Lst_Init();
beSilent = FALSE; /* Print commands as executed */
ignoreErrors = FALSE; /* Pay attention to non-zero returns */
noExecute = FALSE; /* Execute all commands */
keepgoing = FALSE; /* Stop on error */
allPrecious = FALSE; /* Remove targets when interrupted */
queryFlag = FALSE; /* This is not just a check-run */
noBuiltins = FALSE; /* Read the built-in rules */
touchFlag = FALSE; /* Actually update targets */
debug = 0; /* No debug verbosity, please. */
jobsRunning = FALSE;
noisy = FALSE;
maxJobs = 0; /* Set default max concurrency */
maxLocal = -1; /* Set default local max concurrency */
/*
* create internal commonly used strings
*/
string_init();
sNULL = string_create("");
sDOT = string_create(".");
sTARGET = string_create("@");
sOODATE = string_create("?");
sALLSRC = string_create(">");
sIMPSRC = string_create("<");
sPREFIX = string_create("*");
sARCHIVE = string_create("!");
sMEMBER = string_create("%");
s_TARGET = string_create(".TARGET");
s_OODATE = string_create(".OODATE");
s_ALLSRC = string_create(".ALLSRC");
s_IMPSRC = string_create(".IMPSRC");
s_PREFIX = string_create(".PREFIX");
s_ARCHIVE = string_create(".ARCHIVE");
s_MEMBER = string_create(".MEMBER");
s_TARGETS = string_create(".TARGETS");
s_INCLUDES = string_create(".INCLUDES");
s_LIBS = string_create(".LIBS");
sMAKE = string_create("MAKE");
sMAKEFLAGS = string_create("MAKEFLAGS");
sMFLAGS = string_create("MFLAGS");
sMACHINE = string_create("MACHINE");
sNPROC = string_create("NPROC");
sVPATH = string_create("VPATH");
sMAKEFILE = string_create("MAKEFILE");
sLIBSUFF = string_create(LIBSUFF);
sMAKEOBJDIR = string_create("MAKEOBJDIR");
sMAKESRCDIRPATH = string_create("MAKESRCDIRPATH");
sMAKEDIR = string_create("MAKEDIR");
sMAKETOP = string_create("MAKETOP");
sMAKESUB = string_create("MAKESUB");
s_DEFAULT = string_create(".DEFAULT");
s_INTERRUPT = string_create(".INTERRUPT");
s_BEGIN = string_create(".BEGIN");
s_END = string_create(".END");
s_ERROR = string_create(".ERROR");
s_EXIT = string_create(".EXIT");
/*
* Initialize the parsing, directory and variable modules to prepare
* for the reading of inclusion paths and variable settings on the
* command line
*/
Dir_Init(); /* Initialize directory structures so -I flags
* can be processed correctly */
Parse_Init(); /* Need to initialize the paths of #include
* directories */
Var_Init(); /* As well as the lists of variables for
* parsing arguments */
/*
* Initialize various variables.
* MAKE also gets this name, for compatibility
* MAKEFLAGS gets set to the empty string just in case.
* MFLAGS also gets initialized empty, for compatibility.
*/
Var_Set(sMAKE, string_create(argv[0]), VAR_GLOBAL);
Var_Set(sMAKEFLAGS, sNULL, VAR_GLOBAL);
Var_Set(sMFLAGS, sNULL, VAR_GLOBAL);
Var_Set(sMACHINE, string_create(MACHINE), VAR_GLOBAL);
Var_Set(sNPROC, string_create((p = getenv("NPROC")) ? p : "1"),
VAR_GLOBAL);
/*
* First snag any flags out of the MAKE environment variable.
* (Note this is *not* MAKEFLAGS since /bin/make uses that and it's
* in a different format).
*/
Main_ParseArgLine(getenv("MAKEFLAGS"));
MainParseArgs(argc, argv);
Cond_Setup();
/*
* Now make sure that maxJobs and maxLocal are positive. If
* not, use the value of NPROC (or 1 if NPROC is not positive)
*/
{
int nproc = atoi(Var_Value(sNPROC, VAR_GLOBAL));
if (nproc < 1)
nproc = 1;
if (maxJobs < 1)
maxJobs = nproc;
}
/*
* Initialize archive, target and suffix modules in preparation for
* parsing the makefile(s)
*/
Arch_Init();
Targ_Init();
Suff_Init();
DEFAULT = NILGNODE;
(void)time(&now);
/*
* Set up the .TARGETS variable to contain the list of targets to be
* created. If none specified, make the variable empty -- the parser
* will fill the thing in with the default or .MAIN target.
*/
if (!Lst_IsEmpty(create)) {
LstNode ln;
for (ln = Lst_First(create); ln != NILLNODE;
ln = Lst_Succ(ln)) {
string_t name = (string_t)Lst_Datum(ln);
Var_Append(s_TARGETS, name, VAR_GLOBAL);
}
} else
Var_Set(s_TARGETS, sNULL, VAR_GLOBAL);
/*
* Locate the correct working directory for make. Adjust for any
* movement taken from the directory of our parent if we are a
* sub-make.
*/
MakeSetWorkingDir("Makeconf");
/*
* Read in the built-in rules first, followed by the specified
* makefile, if it was (makefile != (char *) NULL), or the default
* Makefile and makefile, in that order, if it wasn't.
*/
if (!noBuiltins && !ReadMakefile(_PATH_DEFSYSMK, TRUE))
Fatal("make: no system rules (%s).", _PATH_DEFSYSMK);
if (!Lst_IsEmpty(makefiles)) {
LstNode ln;
ln = Lst_Find(makefiles, (ClientData)FALSE, ReadMakefileP);
if (ln != NILLNODE)
Fatal("make: cannot open %s.", (char *)Lst_Datum(ln));
} else if (!ReadMakefile("makefile", FALSE))
(void)ReadMakefile("Makefile", FALSE);
Var_Append(sMFLAGS, Var_StrValue(sMAKEFLAGS, VAR_GLOBAL), VAR_GLOBAL);
/* Install all the flags into the MAKEFLAGS envariable. */
if ((p = Var_Value(sMAKEFLAGS, VAR_GLOBAL)) && *p)
setenv("MAKEFLAGS", p, 1);
/*
* For compatibility, look at the directories in the VPATH variable
* and add them to the search path, if the variable is defined. The
* variable's value is in the same format as the PATH envariable, i.e.
* <directory>:<directory>:<directory>...
*/
if (Var_Exists(sVPATH, VAR_CMD)) {
char *vpath, *path, *cp, savec;
/*
* GCC stores string constants in read-only memory, but
* Var_Subst will want to write this thing, so store it
* in an array
*/
static char VPATH[] = "${VPATH}";
vpath = Var_Subst(VPATH, VAR_CMD, FALSE);
path = vpath;
do {
/* skip to end of directory */
for (cp = path; *cp != ':' && *cp != '\0'; cp++);
/* Save terminator character so know when to stop */
savec = *cp;
*cp = '\0';
/* Add directory to search path */
Dir_AddDir(dirSearchPath, string_create(path));
*cp = savec;
path = cp + 1;
} while (savec == ':');
(void)free((Address)vpath);
}
/*
* Now that all search paths have been read for suffixes et al, it's
* time to add the default search path to their lists...
*/
Suff_DoPaths();
/* print the initial graph, if the user requested it */
if (DEBUG(GRAPH1))
Targ_PrintGraph(1);
/*
* Have now read the entire graph and need to make a list of targets
* to create. If none was given on the command line, we consult the
* parsing module to find the main target(s) to create.
*/
if (Lst_IsEmpty(create))
targs = Parse_MainName();
else
targs = Targ_FindList(create, TARG_CREATE);
/*
* Initialize job module before traversing the graph, now that
* any .BEGIN and .END targets have been read. This is done
* only if the -q flag wasn't given (to prevent the .BEGIN from
* being executed should it exist).
*/
if (!queryFlag) {
if (maxLocal < 0 || maxLocal > maxJobs)
maxLocal = maxJobs;
Job_Init(maxJobs, maxLocal);
jobsRunning = TRUE;
}
/* Traverse the graph, checking on all the targets */
outOfDate = Make_Run(targs, &hadErrors);
/* print the graph now it's been processed if the user requested it */
if (DEBUG(GRAPH2))
Targ_PrintGraph(2);
return (hadErrors || (queryFlag && outOfDate));
}
/*-
* ReadMakefile --
* Open and parse the given makefile.
*
* Results:
* TRUE if ok. FALSE if couldn't open file.
*
* Side Effects:
* lots
*/
static Boolean
ReadMakefile(ClientData p, ClientData q __unused)
{
char *fname = p; /* makefile to read */
FILE *stream;
size_t len = MAXPATHLEN;
char *name, *path = emalloc(len);
int setMAKEFILE;
if (!strcmp(fname, "-")) {
Parse_File("(stdin)", stdin);
Var_Set("MAKEFILE", "", VAR_GLOBAL, 0);
} else {
setMAKEFILE = strcmp(fname, ".depend");
/* if we've chdir'd, rebuild the path name */
if (strcmp(curdir, objdir) && *fname != '/') {
size_t plen = strlen(curdir) + strlen(fname) + 2;
if (len < plen)
path = erealloc(path, len = 2 * plen);
(void)snprintf(path, len, "%s/%s", curdir, fname);
if ((stream = fopen(path, "r")) != NULL) {
fname = path;
goto found;
}
/* If curdir failed, try objdir (ala .depend) */
plen = strlen(objdir) + strlen(fname) + 2;
if (len < plen)
path = erealloc(path, len = 2 * plen);
(void)snprintf(path, len, "%s/%s", objdir, fname);
if ((stream = fopen(path, "r")) != NULL) {
fname = path;
goto found;
}
} else if ((stream = fopen(fname, "r")) != NULL)
goto found;
/* look in -I and system include directories. */
name = Dir_FindFile(fname, parseIncPath);
if (!name)
name = Dir_FindFile(fname,
Lst_IsEmpty(sysIncPath) ? defIncPath : sysIncPath);
if (!name || !(stream = fopen(name, "r"))) {
free(path);
return(FALSE);
}
fname = name;
/*
* set the MAKEFILE variable desired by System V fans -- the
* placement of the setting here means it gets set to the last
* makefile specified, as it is set by SysV make.
*/
found:
if (setMAKEFILE)
Var_Set("MAKEFILE", fname, VAR_GLOBAL, 0);
Parse_File(fname, stream);
(void)fclose(stream);
}
free(path);
return(TRUE);
}
/*-
*-----------------------------------------------------------------------
* Arch_ParseArchive --
* Parse the archive specification in the given line and find/create
* the nodes for the specified archive members, placing their nodes
* on the given list.
*
* Input:
* linePtr Pointer to start of specification
* nodeLst Lst on which to place the nodes
* ctxt Context in which to expand variables
*
* Results:
* SUCCESS if it was a valid specification. The linePtr is updated
* to point to the first non-space after the archive spec. The
* nodes for the members are placed on the given list.
*
* Side Effects:
* Some nodes may be created. The given list is extended.
*
*-----------------------------------------------------------------------
*/
ReturnStatus
Arch_ParseArchive(char **linePtr, Lst nodeLst, GNode *ctxt)
{
char *cp; /* Pointer into line */
GNode *gn; /* New node */
char *libName; /* Library-part of specification */
char *memName; /* Member-part of specification */
char *nameBuf; /* temporary place for node name */
char saveChar; /* Ending delimiter of member-name */
Boolean subLibName; /* TRUE if libName should have/had
* variable substitution performed on it */
libName = *linePtr;
subLibName = FALSE;
for (cp = libName; *cp != '(' && *cp != '\0'; cp++) {
if (*cp == '$') {
/*
* Variable spec, so call the Var module to parse the puppy
* so we can safely advance beyond it...
*/
int length;
void *freeIt;
char *result;
result = Var_Parse(cp, ctxt, VARF_UNDEFERR|VARF_WANTRES,
&length, &freeIt);
free(freeIt);
if (result == var_Error) {
return(FAILURE);
} else {
subLibName = TRUE;
}
cp += length-1;
}
}
*cp++ = '\0';
if (subLibName) {
libName = Var_Subst(NULL, libName, ctxt, VARF_UNDEFERR|VARF_WANTRES);
}
for (;;) {
/*
* First skip to the start of the member's name, mark that
* place and skip to the end of it (either white-space or
* a close paren).
*/
Boolean doSubst = FALSE; /* TRUE if need to substitute in memName */
while (*cp != '\0' && *cp != ')' && isspace ((unsigned char)*cp)) {
cp++;
}
memName = cp;
while (*cp != '\0' && *cp != ')' && !isspace ((unsigned char)*cp)) {
if (*cp == '$') {
/*
* Variable spec, so call the Var module to parse the puppy
* so we can safely advance beyond it...
*/
int length;
void *freeIt;
char *result;
result = Var_Parse(cp, ctxt, VARF_UNDEFERR|VARF_WANTRES,
&length, &freeIt);
free(freeIt);
if (result == var_Error) {
return(FAILURE);
} else {
doSubst = TRUE;
}
cp += length;
} else {
cp++;
}
}
/*
* If the specification ends without a closing parenthesis,
* chances are there's something wrong (like a missing backslash),
* so it's better to return failure than allow such things to happen
*/
if (*cp == '\0') {
printf("No closing parenthesis in archive specification\n");
return (FAILURE);
}
/*
* If we didn't move anywhere, we must be done
*/
if (cp == memName) {
break;
}
saveChar = *cp;
*cp = '\0';
/*
* XXX: This should be taken care of intelligently by
* SuffExpandChildren, both for the archive and the member portions.
*/
/*
* If member contains variables, try and substitute for them.
* This will slow down archive specs with dynamic sources, of course,
* since we'll be (non-)substituting them three times, but them's
* the breaks -- we need to do this since SuffExpandChildren calls
* us, otherwise we could assume the thing would be taken care of
* later.
*/
if (doSubst) {
char *buf;
char *sacrifice;
char *oldMemName = memName;
size_t sz;
memName = Var_Subst(NULL, memName, ctxt,
VARF_UNDEFERR|VARF_WANTRES);
/*
* Now form an archive spec and recurse to deal with nested
* variables and multi-word variable values.... The results
* are just placed at the end of the nodeLst we're returning.
*/
sz = strlen(memName)+strlen(libName)+3;
buf = sacrifice = bmake_malloc(sz);
snprintf(buf, sz, "%s(%s)", libName, memName);
if (strchr(memName, '$') && strcmp(memName, oldMemName) == 0) {
/*
* Must contain dynamic sources, so we can't deal with it now.
* Just create an ARCHV node for the thing and let
* SuffExpandChildren handle it...
*/
gn = Targ_FindNode(buf, TARG_CREATE);
if (gn == NULL) {
free(buf);
return(FAILURE);
} else {
gn->type |= OP_ARCHV;
(void)Lst_AtEnd(nodeLst, gn);
}
} else if (Arch_ParseArchive(&sacrifice, nodeLst, ctxt)!=SUCCESS) {
/*
* Error in nested call -- free buffer and return FAILURE
* ourselves.
*/
free(buf);
return(FAILURE);
}
/*
* Free buffer and continue with our work.
*/
free(buf);
} else if (Dir_HasWildcards(memName)) {
Lst members = Lst_Init(FALSE);
char *member;
size_t sz = MAXPATHLEN, nsz;
nameBuf = bmake_malloc(sz);
Dir_Expand(memName, dirSearchPath, members);
while (!Lst_IsEmpty(members)) {
member = (char *)Lst_DeQueue(members);
nsz = strlen(libName) + strlen(member) + 3;
if (sz > nsz)
nameBuf = bmake_realloc(nameBuf, sz = nsz * 2);
snprintf(nameBuf, sz, "%s(%s)", libName, member);
free(member);
gn = Targ_FindNode(nameBuf, TARG_CREATE);
if (gn == NULL) {
free(nameBuf);
return (FAILURE);
} else {
/*
* We've found the node, but have to make sure the rest of
* the world knows it's an archive member, without having
* to constantly check for parentheses, so we type the
* thing with the OP_ARCHV bit before we place it on the
* end of the provided list.
*/
gn->type |= OP_ARCHV;
(void)Lst_AtEnd(nodeLst, gn);
}
}
Lst_Destroy(members, NULL);
free(nameBuf);
} else {
size_t sz = strlen(libName) + strlen(memName) + 3;
nameBuf = bmake_malloc(sz);
snprintf(nameBuf, sz, "%s(%s)", libName, memName);
gn = Targ_FindNode(nameBuf, TARG_CREATE);
free(nameBuf);
if (gn == NULL) {
return (FAILURE);
} else {
/*
* We've found the node, but have to make sure the rest of the
* world knows it's an archive member, without having to
* constantly check for parentheses, so we type the thing with
* the OP_ARCHV bit before we place it on the end of the
* provided list.
*/
gn->type |= OP_ARCHV;
(void)Lst_AtEnd(nodeLst, gn);
}
}
if (doSubst) {
free(memName);
}
*cp = saveChar;
}
/*
* If substituted libName, free it now, since we need it no longer.
*/
if (subLibName) {
free(libName);
}
/*
* We promised the pointer would be set up at the next non-space, so
* we must advance cp there before setting *linePtr... (note that on
* entrance to the loop, cp is guaranteed to point at a ')')
*/
do {
cp++;
} while (*cp != '\0' && isspace ((unsigned char)*cp));
*linePtr = cp;
return (SUCCESS);
}
/*-
* main --
* The main function, for obvious reasons. Initializes variables
* and a few modules, then parses the arguments give it in the
* environment and on the command line. Reads the system makefile
* followed by either Makefile, makefile or the file given by the
* -f argument. Sets the .MAKEFLAGS PMake variable based on all the
* flags it has received by then uses either the Make or the Compat
* module to create the initial list of targets.
*
* Results:
* If -q was given, exits -1 if anything was out-of-date. Else it exits
* 0.
*
* Side Effects:
* The program exits when done. Targets are created. etc. etc. etc.
*/
int
main(int argc, char **argv)
{
Lst targs; /* target nodes to create -- passed to Make_Init */
Boolean outOfDate = TRUE; /* FALSE if all targets up to date */
struct stat sb, sa;
char *p1, *path, *pwd;
char mdpath[MAXPATHLEN];
#ifdef FORCE_MACHINE
char *machine = FORCE_MACHINE;
#else
char *machine = getenv("MACHINE");
#endif
const char *machine_arch = getenv("MACHINE_ARCH");
char *syspath = getenv("MAKESYSPATH");
Lst sysMkPath; /* Path of sys.mk */
char *cp = NULL, *start;
/* avoid faults on read-only strings */
static char defsyspath[] = DEFAULT_SYS_PATH;
char found_path[MAXPATHLEN + 1]; /* for searching for sys.mk */
struct timeval rightnow; /* to initialize random seed */
/*
* Set the seed to produce a different random sequences
* on each program execution.
*/
gettimeofday(&rightnow, NULL);
srandom(rightnow.tv_sec + rightnow.tv_usec);
if ((progname = strrchr(argv[0], '/')) != NULL)
progname++;
else
progname = argv[0];
#ifdef RLIMIT_NOFILE
/*
* get rid of resource limit on file descriptors
*/
{
struct rlimit rl;
if (getrlimit(RLIMIT_NOFILE, &rl) != -1 &&
rl.rlim_cur != rl.rlim_max) {
rl.rlim_cur = rl.rlim_max;
(void)setrlimit(RLIMIT_NOFILE, &rl);
}
}
#endif
/*
* Find where we are and take care of PWD for the automounter...
* All this code is so that we know where we are when we start up
* on a different machine with pmake.
*/
if (getcwd(curdir, MAXPATHLEN) == NULL) {
(void)fprintf(stderr, "%s: %s.\n", progname, strerror(errno));
exit(2);
}
if (stat(curdir, &sa) == -1) {
(void)fprintf(stderr, "%s: %s: %s.\n",
progname, curdir, strerror(errno));
exit(2);
}
/*
* Overriding getcwd() with $PWD totally breaks MAKEOBJDIRPREFIX
* since the value of curdir can very depending on how we got
* here. Ie sitting at a shell prompt (shell that provides $PWD)
* or via subdir.mk in which case its likely a shell which does
* not provide it.
* So, to stop it breaking this case only, we ignore PWD if
* MAKEOBJDIRPREFIX is set or MAKEOBJDIR contains a transform.
*/
#ifndef NO_PWD_OVERRIDE
if ((pwd = getenv("PWD")) != NULL && getenv("MAKEOBJDIRPREFIX") == NULL) {
const char *makeobjdir = getenv("MAKEOBJDIR");
if (makeobjdir == NULL || !strchr(makeobjdir, '$')) {
if (stat(pwd, &sb) == 0 && sa.st_ino == sb.st_ino &&
sa.st_dev == sb.st_dev)
(void)strncpy(curdir, pwd, MAXPATHLEN);
}
}
#endif
/*
* Get the name of this type of MACHINE from utsname
* so we can share an executable for similar machines.
* (i.e. m68k: amiga hp300, mac68k, sun3, ...)
*
* Note that both MACHINE and MACHINE_ARCH are decided at
* run-time.
*/
if (!machine) {
#ifdef MAKE_NATIVE
struct utsname utsname;
if (uname(&utsname) == -1) {
(void)fprintf(stderr, "%s: uname failed (%s).\n", progname,
strerror(errno));
exit(2);
}
machine = utsname.machine;
#else
#ifdef MAKE_MACHINE
machine = MAKE_MACHINE;
#else
machine = "unknown";
#endif
#endif
}
if (!machine_arch) {
#ifndef MACHINE_ARCH
#ifdef MAKE_MACHINE_ARCH
machine_arch = MAKE_MACHINE_ARCH;
#else
machine_arch = "unknown";
#endif
#else
machine_arch = MACHINE_ARCH;
#endif
}
/*
* Just in case MAKEOBJDIR wants us to do something tricky.
*/
Var_Init(); /* Initialize the lists of variables for
* parsing arguments */
Var_Set(".CURDIR", curdir, VAR_GLOBAL, 0);
Var_Set("MACHINE", machine, VAR_GLOBAL, 0);
Var_Set("MACHINE_ARCH", machine_arch, VAR_GLOBAL, 0);
#ifdef MAKE_VERSION
Var_Set("MAKE_VERSION", MAKE_VERSION, VAR_GLOBAL, 0);
#endif
Var_Set(".newline", "\n", VAR_GLOBAL, 0); /* handy for :@ loops */
/*
* Find the .OBJDIR. If MAKEOBJDIRPREFIX, or failing that,
* MAKEOBJDIR is set in the environment, try only that value
* and fall back to .CURDIR if it does not exist.
*
* Otherwise, try _PATH_OBJDIR.MACHINE, _PATH_OBJDIR, and
* finally _PATH_OBJDIRPREFIX`pwd`, in that order. If none
* of these paths exist, just use .CURDIR.
*/
Dir_Init(curdir);
(void)Main_SetObjdir(curdir);
if ((path = getenv("MAKEOBJDIRPREFIX")) != NULL) {
(void)snprintf(mdpath, MAXPATHLEN, "%s%s", path, curdir);
(void)Main_SetObjdir(mdpath);
} else if ((path = getenv("MAKEOBJDIR")) != NULL) {
(void)Main_SetObjdir(path);
} else {
(void)snprintf(mdpath, MAXPATHLEN, "%s.%s", _PATH_OBJDIR, machine);
if (!Main_SetObjdir(mdpath) && !Main_SetObjdir(_PATH_OBJDIR)) {
(void)snprintf(mdpath, MAXPATHLEN, "%s%s",
_PATH_OBJDIRPREFIX, curdir);
(void)Main_SetObjdir(mdpath);
}
}
create = Lst_Init(FALSE);
makefiles = Lst_Init(FALSE);
printVars = FALSE;
variables = Lst_Init(FALSE);
beSilent = FALSE; /* Print commands as executed */
ignoreErrors = FALSE; /* Pay attention to non-zero returns */
noExecute = FALSE; /* Execute all commands */
noRecursiveExecute = FALSE; /* Execute all .MAKE targets */
keepgoing = FALSE; /* Stop on error */
allPrecious = FALSE; /* Remove targets when interrupted */
queryFlag = FALSE; /* This is not just a check-run */
noBuiltins = FALSE; /* Read the built-in rules */
touchFlag = FALSE; /* Actually update targets */
usePipes = TRUE; /* Catch child output in pipes */
debug = 0; /* No debug verbosity, please. */
jobsRunning = FALSE;
maxLocal = DEFMAXLOCAL; /* Set default local max concurrency */
#ifdef REMOTE
maxJobs = DEFMAXJOBS; /* Set default max concurrency */
#else
maxJobs = maxLocal;
#endif
compatMake = FALSE; /* No compat mode */
/*
* Initialize the parsing, directory and variable modules to prepare
* for the reading of inclusion paths and variable settings on the
* command line
*/
/*
* Initialize various variables.
* MAKE also gets this name, for compatibility
* .MAKEFLAGS gets set to the empty string just in case.
* MFLAGS also gets initialized empty, for compatibility.
*/
Parse_Init();
Var_Set("MAKE", argv[0], VAR_GLOBAL, 0);
Var_Set(".MAKE", argv[0], VAR_GLOBAL, 0);
Var_Set(MAKEFLAGS, "", VAR_GLOBAL, 0);
Var_Set(MAKEOVERRIDES, "", VAR_GLOBAL, 0);
Var_Set("MFLAGS", "", VAR_GLOBAL, 0);
Var_Set(".ALLTARGETS", "", VAR_GLOBAL, 0);
/*
* First snag any flags out of the MAKE environment variable.
* (Note this is *not* MAKEFLAGS since /bin/make uses that and it's
* in a different format).
*/
#ifdef POSIX
Main_ParseArgLine(getenv("MAKEFLAGS"));
#else
Main_ParseArgLine(getenv("MAKE"));
#endif
MainParseArgs(argc, argv);
/*
* Be compatible if user did not specify -j and did not explicitly
* turned compatibility on
*/
if (!compatMake && !forceJobs) {
compatMake = TRUE;
}
/*
* Initialize archive, target and suffix modules in preparation for
* parsing the makefile(s)
*/
Arch_Init();
Targ_Init();
Suff_Init();
Trace_Init(tracefile);
DEFAULT = NILGNODE;
(void)time(&now);
Trace_Log(MAKESTART, NULL);
/*
* Set up the .TARGETS variable to contain the list of targets to be
* created. If none specified, make the variable empty -- the parser
* will fill the thing in with the default or .MAIN target.
*/
if (!Lst_IsEmpty(create)) {
LstNode ln;
for (ln = Lst_First(create); ln != NILLNODE;
ln = Lst_Succ(ln)) {
char *name = (char *)Lst_Datum(ln);
Var_Append(".TARGETS", name, VAR_GLOBAL);
}
} else
Var_Set(".TARGETS", "", VAR_GLOBAL, 0);
/*
* If no user-supplied system path was given (through the -m option)
* add the directories from the DEFSYSPATH (more than one may be given
* as dir1:...:dirn) to the system include path.
*/
if (syspath == NULL || *syspath == '\0')
syspath = defsyspath;
else
syspath = strdup(syspath);
for (start = syspath; *start != '\0'; start = cp) {
for (cp = start; *cp != '\0' && *cp != ':'; cp++)
continue;
if (*cp == ':') {
*cp++ = '\0';
}
/* look for magic parent directory search string */
if (strncmp(".../", start, 4) != 0) {
(void)Dir_AddDir(defIncPath, start);
} else {
if (Dir_FindHereOrAbove(curdir, start+4,
found_path, sizeof(found_path))) {
(void)Dir_AddDir(defIncPath, found_path);
}
}
}
if (syspath != defsyspath)
free(syspath);
/*
* Read in the built-in rules first, followed by the specified
* makefile, if it was (makefile != NULL), or the default
* makefile and Makefile, in that order, if it wasn't.
*/
if (!noBuiltins) {
LstNode ln;
sysMkPath = Lst_Init(FALSE);
Dir_Expand(_PATH_DEFSYSMK,
Lst_IsEmpty(sysIncPath) ? defIncPath : sysIncPath,
sysMkPath);
if (Lst_IsEmpty(sysMkPath))
Fatal("%s: no system rules (%s).", progname,
_PATH_DEFSYSMK);
ln = Lst_Find(sysMkPath, (ClientData)NULL, ReadMakefile);
if (ln != NILLNODE)
Fatal("%s: cannot open %s.", progname,
(char *)Lst_Datum(ln));
}
if (!Lst_IsEmpty(makefiles)) {
LstNode ln;
ln = Lst_Find(makefiles, (ClientData)NULL, ReadMakefile);
if (ln != NILLNODE)
Fatal("%s: cannot open %s.", progname,
(char *)Lst_Datum(ln));
} else if (!ReadMakefile(UNCONST("makefile"), NULL))
(void)ReadMakefile(UNCONST("Makefile"), NULL);
(void)ReadMakefile(UNCONST(".depend"), NULL);
Var_Append("MFLAGS", Var_Value(MAKEFLAGS, VAR_GLOBAL, &p1), VAR_GLOBAL);
if (p1)
free(p1);
if (!jobServer && !compatMake)
Job_ServerStart(maxJobs);
if (DEBUG(JOB))
printf("job_pipe %d %d, maxjobs %d maxlocal %d compat %d\n", job_pipe[0], job_pipe[1], maxJobs,
maxLocal, compatMake);
Main_ExportMAKEFLAGS(TRUE); /* initial export */
#ifndef NO_CHECK_MAKE_CHDIR
Check_Cwd_av(0, NULL, 0); /* initialize it */
#endif
/*
* For compatibility, look at the directories in the VPATH variable
* and add them to the search path, if the variable is defined. The
* variable's value is in the same format as the PATH envariable, i.e.
* <directory>:<directory>:<directory>...
*/
if (Var_Exists("VPATH", VAR_CMD)) {
char *vpath, savec;
/*
* GCC stores string constants in read-only memory, but
* Var_Subst will want to write this thing, so store it
* in an array
*/
static char VPATH[] = "${VPATH}";
vpath = Var_Subst(NULL, VPATH, VAR_CMD, FALSE);
path = vpath;
do {
/* skip to end of directory */
for (cp = path; *cp != ':' && *cp != '\0'; cp++)
continue;
/* Save terminator character so know when to stop */
savec = *cp;
*cp = '\0';
/* Add directory to search path */
(void)Dir_AddDir(dirSearchPath, path);
*cp = savec;
path = cp + 1;
} while (savec == ':');
free(vpath);
}
/*
* Now that all search paths have been read for suffixes et al, it's
* time to add the default search path to their lists...
*/
Suff_DoPaths();
/*
* Propagate attributes through :: dependency lists.
*/
Targ_Propagate();
/* print the initial graph, if the user requested it */
if (DEBUG(GRAPH1))
Targ_PrintGraph(1);
/* print the values of any variables requested by the user */
if (printVars) {
LstNode ln;
for (ln = Lst_First(variables); ln != NILLNODE;
ln = Lst_Succ(ln)) {
char *var = (char *)Lst_Datum(ln);
char *value;
if (strchr(var, '$')) {
value = p1 = Var_Subst(NULL, var, VAR_GLOBAL, 0);
} else {
value = Var_Value(var, VAR_GLOBAL, &p1);
}
printf("%s\n", value ? value : "");
if (p1)
free(p1);
}
}
/*
* Have now read the entire graph and need to make a list of targets
* to create. If none was given on the command line, we consult the
* parsing module to find the main target(s) to create.
*/
if (Lst_IsEmpty(create))
targs = Parse_MainName();
else
targs = Targ_FindList(create, TARG_CREATE);
if (!compatMake && !printVars) {
/*
* Initialize job module before traversing the graph, now that
* any .BEGIN and .END targets have been read. This is done
* only if the -q flag wasn't given (to prevent the .BEGIN from
* being executed should it exist).
*/
if (!queryFlag) {
if (maxLocal == -1)
maxLocal = maxJobs;
Job_Init(maxJobs, maxLocal);
jobsRunning = TRUE;
}
/* Traverse the graph, checking on all the targets */
outOfDate = Make_Run(targs);
} else if (!printVars) {
/*
* Compat_Init will take care of creating all the targets as
* well as initializing the module.
*/
Compat_Run(targs);
}
#ifdef CLEANUP
Lst_Destroy(targs, NOFREE);
Lst_Destroy(variables, NOFREE);
Lst_Destroy(makefiles, NOFREE);
Lst_Destroy(create, (FreeProc *)free);
#endif
/* print the graph now it's been processed if the user requested it */
if (DEBUG(GRAPH2))
Targ_PrintGraph(2);
Trace_Log(MAKEEND, 0);
Suff_End();
Targ_End();
Arch_End();
Var_End();
Parse_End();
Dir_End();
Job_End();
Trace_End();
if (queryFlag && outOfDate)
return(1);
else
return(0);
}
Boolean
meta_oodate(GNode *gn, Boolean oodate)
{
static char *tmpdir = NULL;
static char cwd[MAXPATHLEN];
char lcwd_vname[64];
char ldir_vname[64];
char lcwd[MAXPATHLEN];
char latestdir[MAXPATHLEN];
char fname[MAXPATHLEN];
char fname1[MAXPATHLEN];
char fname2[MAXPATHLEN];
char fname3[MAXPATHLEN];
const char *dname;
const char *tname;
char *p;
char *cp;
char *link_src;
char *move_target;
static size_t cwdlen = 0;
static size_t tmplen = 0;
FILE *fp;
Boolean needOODATE = FALSE;
Lst missingFiles;
char *pa[4]; /* >= possible uses */
int i;
int have_filemon = FALSE;
if (oodate)
return oodate; /* we're done */
i = 0;
dname = Var_Value(".OBJDIR", gn, &pa[i++]);
tname = Var_Value(TARGET, gn, &pa[i++]);
/* if this succeeds fname3 is realpath of dname */
if (!meta_needed(gn, dname, tname, fname3, FALSE))
goto oodate_out;
dname = fname3;
missingFiles = Lst_Init(FALSE);
/*
* We need to check if the target is out-of-date. This includes
* checking if the expanded command has changed. This in turn
* requires that all variables are set in the same way that they
* would be if the target needs to be re-built.
*/
Make_DoAllVar(gn);
meta_name(gn, fname, sizeof(fname), dname, tname, dname);
#ifdef DEBUG_META_MODE
if (DEBUG(META))
fprintf(debug_file, "meta_oodate: %s\n", fname);
#endif
if ((fp = fopen(fname, "r")) != NULL) {
static char *buf = NULL;
static size_t bufsz;
int lineno = 0;
int lastpid = 0;
int pid;
int x;
LstNode ln;
struct stat fs;
if (!buf) {
bufsz = 8 * BUFSIZ;
buf = bmake_malloc(bufsz);
}
if (!cwdlen) {
if (getcwd(cwd, sizeof(cwd)) == NULL)
err(1, "Could not get current working directory");
cwdlen = strlen(cwd);
}
strlcpy(lcwd, cwd, sizeof(lcwd));
strlcpy(latestdir, cwd, sizeof(latestdir));
if (!tmpdir) {
tmpdir = getTmpdir();
tmplen = strlen(tmpdir);
}
/* we want to track all the .meta we read */
Var_Append(".MAKE.META.FILES", fname, VAR_GLOBAL);
ln = Lst_First(gn->commands);
while (!oodate && (x = fgetLine(&buf, &bufsz, 0, fp)) > 0) {
lineno++;
if (buf[x - 1] == '\n')
buf[x - 1] = '\0';
else {
warnx("%s: %d: line truncated at %u", fname, lineno, x);
oodate = TRUE;
break;
}
link_src = NULL;
move_target = NULL;
/* Find the start of the build monitor section. */
if (!have_filemon) {
if (strncmp(buf, "-- filemon", 10) == 0) {
have_filemon = TRUE;
continue;
}
if (strncmp(buf, "# buildmon", 10) == 0) {
have_filemon = TRUE;
continue;
}
}
/* Delimit the record type. */
p = buf;
#ifdef DEBUG_META_MODE
if (DEBUG(META))
fprintf(debug_file, "%s: %d: %s\n", fname, lineno, buf);
#endif
strsep(&p, " ");
if (have_filemon) {
/*
* We are in the 'filemon' output section.
* Each record from filemon follows the general form:
*
* <key> <pid> <data>
*
* Where:
* <key> is a single letter, denoting the syscall.
* <pid> is the process that made the syscall.
* <data> is the arguments (of interest).
*/
switch(buf[0]) {
case '#': /* comment */
case 'V': /* version */
break;
default:
/*
* We need to track pathnames per-process.
*
* Each process run by make, starts off in the 'CWD'
* recorded in the .meta file, if it chdirs ('C')
* elsewhere we need to track that - but only for
* that process. If it forks ('F'), we initialize
* the child to have the same cwd as its parent.
*
* We also need to track the 'latestdir' of
* interest. This is usually the same as cwd, but
* not if a process is reading directories.
*
* Each time we spot a different process ('pid')
* we save the current value of 'latestdir' in a
* variable qualified by 'lastpid', and
* re-initialize 'latestdir' to any pre-saved
* value for the current 'pid' and 'CWD' if none.
*/
CHECK_VALID_META(p);
pid = atoi(p);
if (pid > 0 && pid != lastpid) {
char *ldir;
char *tp;
if (lastpid > 0) {
/* We need to remember these. */
Var_Set(lcwd_vname, lcwd, VAR_GLOBAL, 0);
Var_Set(ldir_vname, latestdir, VAR_GLOBAL, 0);
}
snprintf(lcwd_vname, sizeof(lcwd_vname), LCWD_VNAME_FMT, pid);
snprintf(ldir_vname, sizeof(ldir_vname), LDIR_VNAME_FMT, pid);
lastpid = pid;
ldir = Var_Value(ldir_vname, VAR_GLOBAL, &tp);
if (ldir) {
strlcpy(latestdir, ldir, sizeof(latestdir));
free(tp);
}
ldir = Var_Value(lcwd_vname, VAR_GLOBAL, &tp);
if (ldir) {
strlcpy(lcwd, ldir, sizeof(lcwd));
free(tp);
}
}
/* Skip past the pid. */
if (strsep(&p, " ") == NULL)
continue;
#ifdef DEBUG_META_MODE
if (DEBUG(META))
fprintf(debug_file, "%s: %d: %d: %c: cwd=%s lcwd=%s ldir=%s\n",
fname, lineno,
pid, buf[0], cwd, lcwd, latestdir);
#endif
break;
}
CHECK_VALID_META(p);
/* Process according to record type. */
switch (buf[0]) {
case 'X': /* eXit */
Var_Delete(lcwd_vname, VAR_GLOBAL);
Var_Delete(ldir_vname, VAR_GLOBAL);
lastpid = 0; /* no need to save ldir_vname */
break;
case 'F': /* [v]Fork */
{
char cldir[64];
int child;
child = atoi(p);
if (child > 0) {
snprintf(cldir, sizeof(cldir), LCWD_VNAME_FMT, child);
Var_Set(cldir, lcwd, VAR_GLOBAL, 0);
snprintf(cldir, sizeof(cldir), LDIR_VNAME_FMT, child);
Var_Set(cldir, latestdir, VAR_GLOBAL, 0);
#ifdef DEBUG_META_MODE
if (DEBUG(META))
fprintf(debug_file, "%s: %d: %d: cwd=%s lcwd=%s ldir=%s\n",
fname, lineno,
child, cwd, lcwd, latestdir);
#endif
}
}
break;
case 'C': /* Chdir */
/* Update lcwd and latest directory. */
strlcpy(latestdir, p, sizeof(latestdir));
strlcpy(lcwd, p, sizeof(lcwd));
Var_Set(lcwd_vname, lcwd, VAR_GLOBAL, 0);
Var_Set(ldir_vname, lcwd, VAR_GLOBAL, 0);
#ifdef DEBUG_META_MODE
if (DEBUG(META))
fprintf(debug_file, "%s: %d: cwd=%s ldir=%s\n", fname, lineno, cwd, lcwd);
#endif
break;
case 'M': /* renaMe */
/*
* For 'M'oves we want to check
* the src as for 'R'ead
* and the target as for 'W'rite.
*/
cp = p; /* save this for a second */
/* now get target */
if (strsep(&p, " ") == NULL)
continue;
CHECK_VALID_META(p);
move_target = p;
p = cp;
/* 'L' and 'M' put single quotes around the args */
DEQUOTE(p);
DEQUOTE(move_target);
/* FALLTHROUGH */
case 'D': /* unlink */
if (*p == '/' && !Lst_IsEmpty(missingFiles)) {
/* remove any missingFiles entries that match p */
if ((ln = Lst_Find(missingFiles, p,
path_match)) != NULL) {
LstNode nln;
char *tp;
do {
nln = Lst_FindFrom(missingFiles, Lst_Succ(ln),
p, path_match);
tp = Lst_Datum(ln);
Lst_Remove(missingFiles, ln);
free(tp);
} while ((ln = nln) != NULL);
}
}
if (buf[0] == 'M') {
/* the target of the mv is a file 'W'ritten */
#ifdef DEBUG_META_MODE
if (DEBUG(META))
fprintf(debug_file, "meta_oodate: M %s -> %s\n",
p, move_target);
#endif
p = move_target;
goto check_write;
}
break;
case 'L': /* Link */
/*
* For 'L'inks check
* the src as for 'R'ead
* and the target as for 'W'rite.
*/
link_src = p;
/* now get target */
if (strsep(&p, " ") == NULL)
continue;
CHECK_VALID_META(p);
/* 'L' and 'M' put single quotes around the args */
DEQUOTE(p);
DEQUOTE(link_src);
#ifdef DEBUG_META_MODE
if (DEBUG(META))
fprintf(debug_file, "meta_oodate: L %s -> %s\n",
link_src, p);
#endif
/* FALLTHROUGH */
case 'W': /* Write */
check_write:
/*
* If a file we generated within our bailiwick
* but outside of .OBJDIR is missing,
* we need to do it again.
*/
/* ignore non-absolute paths */
if (*p != '/')
break;
if (Lst_IsEmpty(metaBailiwick))
break;
/* ignore cwd - normal dependencies handle those */
if (strncmp(p, cwd, cwdlen) == 0)
break;
if (!Lst_ForEach(metaBailiwick, prefix_match, p))
break;
/* tmpdir might be within */
if (tmplen > 0 && strncmp(p, tmpdir, tmplen) == 0)
break;
/* ignore anything containing the string "tmp" */
if ((strstr("tmp", p)))
break;
if ((link_src != NULL && cached_lstat(p, &fs) < 0) ||
(link_src == NULL && cached_stat(p, &fs) < 0)) {
if (!meta_ignore(gn, p)) {
if (Lst_Find(missingFiles, p, string_match) == NULL)
Lst_AtEnd(missingFiles, bmake_strdup(p));
}
}
break;
check_link_src:
p = link_src;
link_src = NULL;
#ifdef DEBUG_META_MODE
if (DEBUG(META))
fprintf(debug_file, "meta_oodate: L src %s\n", p);
#endif
/* FALLTHROUGH */
case 'R': /* Read */
case 'E': /* Exec */
/*
* Check for runtime files that can't
* be part of the dependencies because
* they are _expected_ to change.
*/
if (meta_ignore(gn, p))
break;
/*
* The rest of the record is the file name.
* Check if it's not an absolute path.
*/
{
char *sdirs[4];
char **sdp;
int sdx = 0;
int found = 0;
if (*p == '/') {
sdirs[sdx++] = p; /* done */
} else {
if (strcmp(".", p) == 0)
continue; /* no point */
/* Check vs latestdir */
snprintf(fname1, sizeof(fname1), "%s/%s", latestdir, p);
sdirs[sdx++] = fname1;
if (strcmp(latestdir, lcwd) != 0) {
/* Check vs lcwd */
snprintf(fname2, sizeof(fname2), "%s/%s", lcwd, p);
sdirs[sdx++] = fname2;
}
if (strcmp(lcwd, cwd) != 0) {
/* Check vs cwd */
snprintf(fname3, sizeof(fname3), "%s/%s", cwd, p);
sdirs[sdx++] = fname3;
}
}
sdirs[sdx++] = NULL;
for (sdp = sdirs; *sdp && !found; sdp++) {
#ifdef DEBUG_META_MODE
if (DEBUG(META))
fprintf(debug_file, "%s: %d: looking for: %s\n", fname, lineno, *sdp);
#endif
if (cached_stat(*sdp, &fs) == 0) {
found = 1;
p = *sdp;
}
}
if (found) {
#ifdef DEBUG_META_MODE
if (DEBUG(META))
fprintf(debug_file, "%s: %d: found: %s\n", fname, lineno, p);
#endif
if (!S_ISDIR(fs.st_mode) &&
fs.st_mtime > gn->mtime) {
if (DEBUG(META))
fprintf(debug_file, "%s: %d: file '%s' is newer than the target...\n", fname, lineno, p);
oodate = TRUE;
} else if (S_ISDIR(fs.st_mode)) {
/* Update the latest directory. */
cached_realpath(p, latestdir);
}
} else if (errno == ENOENT && *p == '/' &&
strncmp(p, cwd, cwdlen) != 0) {
/*
* A referenced file outside of CWD is missing.
* We cannot catch every eventuality here...
*/
if (Lst_Find(missingFiles, p, string_match) == NULL)
Lst_AtEnd(missingFiles, bmake_strdup(p));
}
}
if (buf[0] == 'E') {
/* previous latestdir is no longer relevant */
strlcpy(latestdir, lcwd, sizeof(latestdir));
}
break;
default:
break;
}
if (!oodate && buf[0] == 'L' && link_src != NULL)
goto check_link_src;
} else if (strcmp(buf, "CMD") == 0) {
/*
* Compare the current command with the one in the
* meta data file.
*/
if (ln == NULL) {
if (DEBUG(META))
fprintf(debug_file, "%s: %d: there were more build commands in the meta data file than there are now...\n", fname, lineno);
oodate = TRUE;
} else {
char *cmd = (char *)Lst_Datum(ln);
Boolean hasOODATE = FALSE;
if (strstr(cmd, "$?"))
hasOODATE = TRUE;
else if ((cp = strstr(cmd, ".OODATE"))) {
/* check for $[{(].OODATE[:)}] */
if (cp > cmd + 2 && cp[-2] == '$')
hasOODATE = TRUE;
}
if (hasOODATE) {
needOODATE = TRUE;
if (DEBUG(META))
fprintf(debug_file, "%s: %d: cannot compare command using .OODATE\n", fname, lineno);
}
cmd = Var_Subst(NULL, cmd, gn, VARF_WANTRES|VARF_UNDEFERR);
if ((cp = strchr(cmd, '\n'))) {
int n;
/*
* This command contains newlines, we need to
* fetch more from the .meta file before we
* attempt a comparison.
*/
/* first put the newline back at buf[x - 1] */
buf[x - 1] = '\n';
do {
/* now fetch the next line */
if ((n = fgetLine(&buf, &bufsz, x, fp)) <= 0)
break;
x = n;
lineno++;
if (buf[x - 1] != '\n') {
warnx("%s: %d: line truncated at %u", fname, lineno, x);
break;
}
cp = strchr(++cp, '\n');
} while (cp);
if (buf[x - 1] == '\n')
buf[x - 1] = '\0';
}
if (!hasOODATE &&
!(gn->type & OP_NOMETA_CMP) &&
strcmp(p, cmd) != 0) {
if (DEBUG(META))
fprintf(debug_file, "%s: %d: a build command has changed\n%s\nvs\n%s\n", fname, lineno, p, cmd);
if (!metaIgnoreCMDs)
oodate = TRUE;
}
free(cmd);
ln = Lst_Succ(ln);
}
} else if (strcmp(buf, "CWD") == 0) {
/*
* Check if there are extra commands now
* that weren't in the meta data file.
*/
if (!oodate && ln != NULL) {
if (DEBUG(META))
fprintf(debug_file, "%s: %d: there are extra build commands now that weren't in the meta data file\n", fname, lineno);
oodate = TRUE;
}
if (strcmp(p, cwd) != 0) {
if (DEBUG(META))
fprintf(debug_file, "%s: %d: the current working directory has changed from '%s' to '%s'\n", fname, lineno, p, curdir);
oodate = TRUE;
}
}
}
fclose(fp);
if (!Lst_IsEmpty(missingFiles)) {
if (DEBUG(META))
fprintf(debug_file, "%s: missing files: %s...\n",
fname, (char *)Lst_Datum(Lst_First(missingFiles)));
oodate = TRUE;
}
if (!oodate && !have_filemon && filemonMissing) {
if (DEBUG(META))
fprintf(debug_file, "%s: missing filemon data\n", fname);
oodate = TRUE;
}
} else {
if (writeMeta && metaMissing) {
cp = NULL;
/* if target is in .CURDIR we do not need a meta file */
if (gn->path && (cp = strrchr(gn->path, '/')) && cp > gn->path) {
if (strncmp(curdir, gn->path, (cp - gn->path)) != 0) {
cp = NULL; /* not in .CURDIR */
}
}
if (!cp) {
if (DEBUG(META))
fprintf(debug_file, "%s: required but missing\n", fname);
oodate = TRUE;
needOODATE = TRUE; /* assume the worst */
}
}
}
Lst_Destroy(missingFiles, (FreeProc *)free);
if (oodate && needOODATE) {
/*
* Target uses .OODATE which is empty; or we wouldn't be here.
* We have decided it is oodate, so .OODATE needs to be set.
* All we can sanely do is set it to .ALLSRC.
*/
Var_Delete(OODATE, gn);
Var_Set(OODATE, Var_Value(ALLSRC, gn, &cp), gn, 0);
free(cp);
}
oodate_out:
for (i--; i >= 0; i--) {
free(pa[i]);
}
return oodate;
}
/*-
*-----------------------------------------------------------------------
* Compat_Run --
* Initialize this mode and start making.
*
* Input:
* targs List of target nodes to re-create
*
* Results:
* None.
*
* Side Effects:
* Guess what?
*
*-----------------------------------------------------------------------
*/
void
Compat_Run(Lst targs)
{
GNode *gn = NULL;/* Current root target */
int errors; /* Number of targets not remade due to errors */
Compat_Init();
if (bmake_signal(SIGINT, SIG_IGN) != SIG_IGN) {
bmake_signal(SIGINT, CompatInterrupt);
}
if (bmake_signal(SIGTERM, SIG_IGN) != SIG_IGN) {
bmake_signal(SIGTERM, CompatInterrupt);
}
if (bmake_signal(SIGHUP, SIG_IGN) != SIG_IGN) {
bmake_signal(SIGHUP, CompatInterrupt);
}
if (bmake_signal(SIGQUIT, SIG_IGN) != SIG_IGN) {
bmake_signal(SIGQUIT, CompatInterrupt);
}
ENDNode = Targ_FindNode(".END", TARG_CREATE);
ENDNode->type = OP_SPECIAL;
/*
* If the user has defined a .BEGIN target, execute the commands attached
* to it.
*/
if (!queryFlag) {
gn = Targ_FindNode(".BEGIN", TARG_NOCREATE);
if (gn != NULL) {
Compat_Make(gn, gn);
if (gn->made == ERROR) {
PrintOnError(gn, "\n\nStop.");
exit(1);
}
}
}
/*
* Expand .USE nodes right now, because they can modify the structure
* of the tree.
*/
Make_ExpandUse(targs);
/*
* For each entry in the list of targets to create, call Compat_Make on
* it to create the thing. Compat_Make will leave the 'made' field of gn
* in one of several states:
* UPTODATE gn was already up-to-date
* MADE gn was recreated successfully
* ERROR An error occurred while gn was being created
* ABORTED gn was not remade because one of its inferiors
* could not be made due to errors.
*/
errors = 0;
while (!Lst_IsEmpty (targs)) {
gn = (GNode *)Lst_DeQueue(targs);
Compat_Make(gn, gn);
if (gn->made == UPTODATE) {
printf("`%s' is up to date.\n", gn->name);
} else if (gn->made == ABORTED) {
printf("`%s' not remade because of errors.\n", gn->name);
errors += 1;
}
}
/*
* If the user has defined a .END target, run its commands.
*/
if (errors == 0) {
Compat_Make(ENDNode, ENDNode);
if (gn->made == ERROR) {
PrintOnError(gn, "\n\nStop.");
exit(1);
}
}
}
/*-
* main --
* The main function, for obvious reasons. Initializes variables
* and a few modules, then parses the arguments give it in the
* environment and on the command line. Reads the system makefile
* followed by either Makefile, makefile or the file given by the
* -f argument. Sets the .MAKEFLAGS PMake variable based on all the
* flags it has received by then uses either the Make or the Compat
* module to create the initial list of targets.
*
* Results:
* If -q was given, exits -1 if anything was out-of-date. Else it exits
* 0.
*
* Side Effects:
* The program exits when done. Targets are created. etc. etc. etc.
*/
int
main(int argc, char **argv)
{
static LIST targs; /* target nodes to create */
bool outOfDate = true; /* false if all targets up to date */
char *machine = figure_out_MACHINE();
char *machine_arch = figure_out_MACHINE_ARCH();
char *machine_cpu = figure_out_MACHINE_CPU();
const char *syspath = _PATH_DEFSYSPATH;
char *p;
static struct dirs d;
bool read_depend = true;/* false if we don't want to read .depend */
MainParseChdir(argc, argv);
setup_CURDIR_OBJDIR(&d, machine);
esetenv("PWD", d.object);
unsetenv("CDPATH");
Static_Lst_Init(create);
Static_Lst_Init(&makefiles);
Static_Lst_Init(&varstoprint);
Static_Lst_Init(&targs);
beSilent = false; /* Print commands as executed */
ignoreErrors = false; /* Pay attention to non-zero returns */
noExecute = false; /* Execute all commands */
keepgoing = false; /* Stop on error */
allPrecious = false; /* Remove targets when interrupted */
queryFlag = false; /* This is not just a check-run */
noBuiltins = false; /* Read the built-in rules */
touchFlag = false; /* Actually update targets */
debug = 0; /* No debug verbosity, please. */
maxJobs = DEFMAXJOBS;
compatMake = false; /* No compat mode */
/*
* Initialize all external modules.
*/
Init();
if (d.object != d.current)
Dir_AddDir(defaultPath, d.current);
Var_Set(".CURDIR", d.current);
Var_Set(".OBJDIR", d.object);
Parse_setcurdir(d.current);
Targ_setdirs(d.current, d.object);
/*
* Initialize various variables.
* MAKE also gets this name, for compatibility
* .MAKEFLAGS gets set to the empty string just in case.
* MFLAGS also gets initialized empty, for compatibility.
*/
Var_Set("MAKE", argv[0]);
Var_Set(".MAKE", argv[0]);
Var_Set(MAKEFLAGS, "");
Var_Set("MFLAGS", "");
Var_Set("MACHINE", machine);
Var_Set("MACHINE_ARCH", machine_arch);
Var_Set("MACHINE_CPU", machine_cpu);
/*
* First snag any flags out of the MAKEFLAGS environment variable.
*/
Main_ParseArgLine(getenv("MAKEFLAGS"));
basedirectory = getenv("MAKEBASEDIRECTORY");
if (basedirectory == NULL)
setenv("MAKEBASEDIRECTORY", d.current, 0);
MainParseArgs(argc, argv);
/*
* Be compatible if user did not specify -j
*/
if (!forceJobs)
compatMake = true;
/* And set up everything for sub-makes */
Var_AddCmdline(MAKEFLAGS);
/*
* Set up the .TARGETS variable to contain the list of targets to be
* created. If none specified, make the variable empty -- the parser
* will fill the thing in with the default or .MAIN target.
*/
if (!Lst_IsEmpty(create)) {
LstNode ln;
for (ln = Lst_First(create); ln != NULL; ln = Lst_Adv(ln)) {
char *name = (char *)Lst_Datum(ln);
if (strcmp(name, "depend") == 0)
read_depend = false;
Var_Append(".TARGETS", name);
}
} else
Var_Set(".TARGETS", "");
/*
* If no user-supplied system path was given (through the -m option)
* add the directories from the DEFSYSPATH (more than one may be given
* as dir1:...:dirn) to the system include path.
*/
if (Lst_IsEmpty(systemIncludePath))
add_dirpath(systemIncludePath, syspath);
read_all_make_rules(noBuiltins, read_depend, &makefiles, &d);
Var_Append("MFLAGS", Var_Value(MAKEFLAGS));
/* Install all the flags into the MAKEFLAGS env variable. */
if (((p = Var_Value(MAKEFLAGS)) != NULL) && *p)
esetenv("MAKEFLAGS", p);
setup_VPATH();
process_suffixes_after_makefile_is_read();
if (dumpData) {
dump_data();
exit(0);
}
/* Print the initial graph, if the user requested it. */
if (DEBUG(GRAPH1))
dump_data();
/* Print the values of any variables requested by the user. */
if (!Lst_IsEmpty(&varstoprint)) {
LstNode ln;
for (ln = Lst_First(&varstoprint); ln != NULL;
ln = Lst_Adv(ln)) {
char *value = Var_Value((char *)Lst_Datum(ln));
printf("%s\n", value ? value : "");
}
} else {
/* Have now read the entire graph and need to make a list
* of targets to create. If none was given on the command
* line, we consult the parsing module to find the main
* target(s) to create. */
if (Lst_IsEmpty(create))
Parse_MainName(&targs);
else
Targ_FindList(&targs, create);
Job_Init(maxJobs);
/* If the user has defined a .BEGIN target, execute the commands
* attached to it. */
if (!queryFlag)
Job_Begin();
if (compatMake)
/* Compat_Init will take care of creating all the
* targets as well as initializing the module. */
Compat_Run(&targs);
else {
/* Traverse the graph, checking on all the targets. */
outOfDate = Make_Run(&targs);
}
}
/* print the graph now it's been processed if the user requested it */
if (DEBUG(GRAPH2))
post_mortem();
if (queryFlag && outOfDate)
return 1;
else
return 0;
}
Boolean
meta_oodate(GNode *gn, Boolean oodate)
{
static char *tmpdir = NULL;
static char cwd[MAXPATHLEN];
char ldir_vname[64];
char latestdir[MAXPATHLEN];
char fname[MAXPATHLEN];
char fname1[MAXPATHLEN];
char fname2[MAXPATHLEN];
char *p;
char *cp;
static size_t cwdlen = 0;
static size_t tmplen = 0;
FILE *fp;
Boolean ignoreOODATE = FALSE;
Lst missingFiles;
if (oodate)
return oodate; /* we're done */
missingFiles = Lst_Init(FALSE);
/*
* We need to check if the target is out-of-date. This includes
* checking if the expanded command has changed. This in turn
* requires that all variables are set in the same way that they
* would be if the target needs to be re-built.
*/
Make_DoAllVar(gn);
meta_name(gn, fname, sizeof(fname), NULL, NULL);
#ifdef DEBUG_META_MODE
if (DEBUG(META))
fprintf(debug_file, "meta_oodate: %s\n", fname);
#endif
if ((fp = fopen(fname, "r")) != NULL) {
static char *buf = NULL;
static size_t bufsz;
int lineno = 0;
int lastpid = 0;
int pid;
int f = 0;
int x;
LstNode ln;
struct stat fs;
if (!buf) {
bufsz = 8 * BUFSIZ;
buf = bmake_malloc(bufsz);
}
if (!cwdlen) {
if (getcwd(cwd, sizeof(cwd)) == NULL)
err(1, "Could not get current working directory");
cwdlen = strlen(cwd);
}
if (!tmpdir) {
tmpdir = getTmpdir();
tmplen = strlen(tmpdir);
}
/* we want to track all the .meta we read */
Var_Append(".MAKE.META.FILES", fname, VAR_GLOBAL);
ln = Lst_First(gn->commands);
while (!oodate && (x = fgetLine(&buf, &bufsz, 0, fp)) > 0) {
lineno++;
if (buf[x - 1] == '\n')
buf[x - 1] = '\0';
else {
warnx("%s: %d: line truncated at %u", fname, lineno, x);
oodate = TRUE;
break;
}
/* Find the start of the build monitor section. */
if (!f) {
if (strncmp(buf, "-- filemon", 10) == 0) {
f = 1;
continue;
}
if (strncmp(buf, "# buildmon", 10) == 0) {
f = 1;
continue;
}
}
/* Delimit the record type. */
p = buf;
#ifdef DEBUG_META_MODE
if (DEBUG(META))
fprintf(debug_file, "%s: %d: %s\n", fname, lineno, buf);
#endif
strsep(&p, " ");
if (f) {
/*
* We are in the 'filemon' output section.
* Each record from filemon follows the general form:
*
* <key> <pid> <data>
*
* Where:
* <key> is a single letter, denoting the syscall.
* <pid> is the process that made the syscall.
* <data> is the arguments (of interest).
*/
switch(buf[0]) {
case '#': /* comment */
case 'V': /* version */
break;
default:
/*
* We need to track pathnames per-process.
*
* Each process run by make, starts off in the 'CWD'
* recorded in the .meta file, if it chdirs ('C')
* elsewhere we need to track that - but only for
* that process. If it forks ('F'), we initialize
* the child to have the same cwd as its parent.
*
* We also need to track the 'latestdir' of
* interest. This is usually the same as cwd, but
* not if a process is reading directories.
*
* Each time we spot a different process ('pid')
* we save the current value of 'latestdir' in a
* variable qualified by 'lastpid', and
* re-initialize 'latestdir' to any pre-saved
* value for the current 'pid' and 'CWD' if none.
*/
CHECK_VALID_META(p);
pid = atoi(p);
if (pid > 0 && pid != lastpid) {
char *ldir;
char *tp;
if (lastpid > 0) {
/* We need to remember this. */
Var_Set(ldir_vname, latestdir, VAR_GLOBAL, 0);
}
snprintf(ldir_vname, sizeof(ldir_vname), LDIR_VNAME_FMT, pid);
lastpid = pid;
ldir = Var_Value(ldir_vname, VAR_GLOBAL, &tp);
if (ldir) {
strlcpy(latestdir, ldir, sizeof(latestdir));
if (tp)
free(tp);
} else
strlcpy(latestdir, cwd, sizeof(latestdir));
}
/* Skip past the pid. */
if (strsep(&p, " ") == NULL)
continue;
#ifdef DEBUG_META_MODE
if (DEBUG(META))
fprintf(debug_file, "%s: %d: cwd=%s ldir=%s\n", fname, lineno, cwd, latestdir);
#endif
break;
}
CHECK_VALID_META(p);
/* Process according to record type. */
switch (buf[0]) {
case 'X': /* eXit */
Var_Delete(ldir_vname, VAR_GLOBAL);
lastpid = 0; /* no need to save ldir_vname */
break;
case 'F': /* [v]Fork */
{
char cldir[64];
int child;
child = atoi(p);
if (child > 0) {
snprintf(cldir, sizeof(cldir), LDIR_VNAME_FMT, child);
Var_Set(cldir, latestdir, VAR_GLOBAL, 0);
}
}
break;
case 'C': /* Chdir */
/* Update the latest directory. */
strlcpy(latestdir, p, sizeof(latestdir));
break;
case 'M': /* renaMe */
if (Lst_IsEmpty(missingFiles))
break;
/* 'L' and 'M' put single quotes around the args */
if (*p == '\'') {
char *ep;
p++;
if ((ep = strchr(p, '\'')))
*ep = '\0';
}
/* FALLTHROUGH */
case 'D': /* unlink */
if (*p == '/' && !Lst_IsEmpty(missingFiles)) {
/* remove p from the missingFiles list if present */
if ((ln = Lst_Find(missingFiles, p, string_match)) != NULL) {
char *tp = Lst_Datum(ln);
Lst_Remove(missingFiles, ln);
free(tp);
}
}
break;
case 'L': /* Link */
/* we want the target */
if (strsep(&p, " ") == NULL)
continue;
CHECK_VALID_META(p);
/* 'L' and 'M' put single quotes around the args */
if (*p == '\'') {
char *ep;
p++;
if ((ep = strchr(p, '\'')))
*ep = '\0';
}
/* FALLTHROUGH */
case 'W': /* Write */
/*
* If a file we generated within our bailiwick
* but outside of .OBJDIR is missing,
* we need to do it again.
*/
/* ignore non-absolute paths */
if (*p != '/')
break;
if (Lst_IsEmpty(metaBailiwick))
break;
/* ignore cwd - normal dependencies handle those */
if (strncmp(p, cwd, cwdlen) == 0)
break;
if (!Lst_ForEach(metaBailiwick, prefix_match, p))
break;
/* tmpdir might be within */
if (tmplen > 0 && strncmp(p, tmpdir, tmplen) == 0)
break;
/* ignore anything containing the string "tmp" */
if ((strstr("tmp", p)))
break;
if (stat(p, &fs) < 0) {
Lst_AtEnd(missingFiles, bmake_strdup(p));
}
break;
case 'R': /* Read */
case 'E': /* Exec */
/*
* Check for runtime files that can't
* be part of the dependencies because
* they are _expected_ to change.
*/
if (strncmp(p, "/tmp/", 5) == 0 ||
(tmplen > 0 && strncmp(p, tmpdir, tmplen) == 0))
break;
if (strncmp(p, "/var/", 5) == 0)
break;
/* Ignore device files. */
if (strncmp(p, "/dev/", 5) == 0)
break;
/* Ignore /etc/ files. */
if (strncmp(p, "/etc/", 5) == 0)
break;
if ((cp = strrchr(p, '/'))) {
cp++;
/*
* We don't normally expect to see this,
* but we do expect it to change.
*/
if (strcmp(cp, makeDependfile) == 0)
break;
}
/*
* The rest of the record is the file name.
* Check if it's not an absolute path.
*/
{
char *sdirs[4];
char **sdp;
int sdx = 0;
int found = 0;
if (*p == '/') {
sdirs[sdx++] = p; /* done */
} else {
if (strcmp(".", p) == 0)
continue; /* no point */
/* Check vs latestdir */
snprintf(fname1, sizeof(fname1), "%s/%s", latestdir, p);
sdirs[sdx++] = fname1;
if (strcmp(latestdir, cwd) != 0) {
/* Check vs cwd */
snprintf(fname2, sizeof(fname2), "%s/%s", cwd, p);
sdirs[sdx++] = fname2;
}
}
sdirs[sdx++] = NULL;
for (sdp = sdirs; *sdp && !found; sdp++) {
#ifdef DEBUG_META_MODE
if (DEBUG(META))
fprintf(debug_file, "%s: %d: looking for: %s\n", fname, lineno, *sdp);
#endif
if (stat(*sdp, &fs) == 0) {
found = 1;
p = *sdp;
}
}
if (found) {
#ifdef DEBUG_META_MODE
if (DEBUG(META))
fprintf(debug_file, "%s: %d: found: %s\n", fname, lineno, p);
#endif
if (!S_ISDIR(fs.st_mode) &&
fs.st_mtime > gn->mtime) {
if (DEBUG(META))
fprintf(debug_file, "%s: %d: file '%s' is newer than the target...\n", fname, lineno, p);
oodate = TRUE;
} else if (S_ISDIR(fs.st_mode)) {
/* Update the latest directory. */
realpath(p, latestdir);
}
} else if (errno == ENOENT && *p == '/' &&
strncmp(p, cwd, cwdlen) != 0) {
/*
* A referenced file outside of CWD is missing.
* We cannot catch every eventuality here...
*/
if (DEBUG(META))
fprintf(debug_file, "%s: %d: file '%s' may have moved?...\n", fname, lineno, p);
oodate = TRUE;
}
}
break;
default:
break;
}
} else if (strcmp(buf, "CMD") == 0) {
/*
* Compare the current command with the one in the
* meta data file.
*/
if (ln == NULL) {
if (DEBUG(META))
fprintf(debug_file, "%s: %d: there were more build commands in the meta data file than there are now...\n", fname, lineno);
oodate = TRUE;
} else {
char *cmd = (char *)Lst_Datum(ln);
if (!ignoreOODATE) {
if (strstr(cmd, "$?"))
ignoreOODATE = TRUE;
else if ((cp = strstr(cmd, ".OODATE"))) {
/* check for $[{(].OODATE[)}] */
if (cp > cmd + 2 && cp[-2] == '$')
ignoreOODATE = TRUE;
}
if (ignoreOODATE && DEBUG(META))
fprintf(debug_file, "%s: %d: cannot compare commands using .OODATE\n", fname, lineno);
}
cmd = Var_Subst(NULL, cmd, gn, TRUE);
if ((cp = strchr(cmd, '\n'))) {
int n;
/*
* This command contains newlines, we need to
* fetch more from the .meta file before we
* attempt a comparison.
*/
/* first put the newline back at buf[x - 1] */
buf[x - 1] = '\n';
do {
/* now fetch the next line */
if ((n = fgetLine(&buf, &bufsz, x, fp)) <= 0)
break;
x = n;
lineno++;
if (buf[x - 1] != '\n') {
warnx("%s: %d: line truncated at %u", fname, lineno, x);
break;
}
cp = strchr(++cp, '\n');
} while (cp);
if (buf[x - 1] == '\n')
buf[x - 1] = '\0';
}
if (!ignoreOODATE &&
!(gn->type & OP_NOMETA_CMP) &&
strcmp(p, cmd) != 0) {
if (DEBUG(META))
fprintf(debug_file, "%s: %d: a build command has changed\n%s\nvs\n%s\n", fname, lineno, p, cmd);
if (!metaIgnoreCMDs)
oodate = TRUE;
}
free(cmd);
ln = Lst_Succ(ln);
}
} else if (strcmp(buf, "CWD") == 0) {
/*
* Check if there are extra commands now
* that weren't in the meta data file.
*/
if (!oodate && ln != NULL) {
if (DEBUG(META))
fprintf(debug_file, "%s: %d: there are extra build commands now that weren't in the meta data file\n", fname, lineno);
oodate = TRUE;
}
if (strcmp(p, cwd) != 0) {
if (DEBUG(META))
fprintf(debug_file, "%s: %d: the current working directory has changed from '%s' to '%s'\n", fname, lineno, p, curdir);
oodate = TRUE;
}
}
}
fclose(fp);
if (!Lst_IsEmpty(missingFiles)) {
if (DEBUG(META))
fprintf(debug_file, "%s: missing files: %s...\n",
fname, (char *)Lst_Datum(Lst_First(missingFiles)));
oodate = TRUE;
Lst_Destroy(missingFiles, (FreeProc *)free);
}
} else {
if ((gn->type & OP_META)) {
if (DEBUG(META))
fprintf(debug_file, "%s: required but missing\n", fname);
oodate = TRUE;
}
}
if (oodate && ignoreOODATE) {
/*
* Target uses .OODATE, so we need to re-compute it.
* We need to clean up what Make_DoAllVar() did.
*/
Var_Delete(ALLSRC, gn);
Var_Delete(OODATE, gn);
gn->flags &= ~DONE_ALLSRC;
}
return oodate;
}
/*-
*-----------------------------------------------------------------------
* TargPrintNode --
* print the contents of a node
*-----------------------------------------------------------------------
*/
static int
TargPrintNode (ClientData gnCD, ClientData pass)
{
GNode *gn = (GNode *)gnCD;
if (!OP_NOP(gn->type)) {
printf("#\n# Target %s assigned in %s\n",
gn->name->data,
gn->makefilename ?
gn->makefilename->data
: "(unknown makefile)");
if (gn == mainTarg) {
printf("# *** MAIN TARGET ***\n");
}
if ((int)pass == 2) {
if (gn->unmade) {
printf("# %d unmade children\n", gn->unmade);
} else {
printf("# No unmade children\n");
}
if (! (gn->type & (OP_JOIN|OP_USE|OP_EXEC))) {
if (gn->mtime != 0) {
printf("# last modified %s: %s\n",
Targ_FmtTime(gn->mtime),
(gn->made == UNMADE ? "unmade" :
(gn->made == MADE ? "made" :
(gn->made == UPTODATE ? "up-to-date" :
"error when made"))));
} else if (gn->made != UNMADE) {
printf("# non-existent (maybe): %s\n",
(gn->made == MADE ? "made" :
(gn->made == UPTODATE ? "up-to-date" :
(gn->made == ERROR ? "error when made" :
"aborted"))));
} else {
printf("# unmade\n");
}
}
if (!Lst_IsEmpty (gn->iParents)) {
printf("# implicit parents: ");
Lst_ForEach (gn->iParents, TargPrintName, (ClientData)0);
putc ('\n', stdout);
}
}
if (!Lst_IsEmpty (gn->parents)) {
printf("# parents: ");
Lst_ForEach (gn->parents, TargPrintName, (ClientData)0);
putc ('\n', stdout);
}
printf("%-16s", gn->name->data);
switch (gn->type & OP_OPMASK) {
case OP_DEPENDS:
printf(": "); break;
case OP_FORCE:
printf("! "); break;
case OP_DOUBLEDEP:
printf(":: "); break;
}
Targ_PrintType (gn->type);
Lst_ForEach (gn->children, TargPrintName, (ClientData)0);
putc ('\n', stdout);
Lst_ForEach (gn->commands, Targ_PrintCmd, (ClientData)0);
printf("\n\n");
if (gn->type & OP_DOUBLEDEP) {
Lst_ForEach (gn->cohorts, TargPrintNode, pass);
}
}
return (0);
}
/*-
* main --
* The main function, for obvious reasons. Initializes variables
* and a few modules, then parses the arguments give it in the
* environment and on the command line. Reads the system makefile
* followed by either Makefile, makefile or the file given by the
* -f argument. Sets the .MAKEFLAGS PMake variable based on all the
* flags it has received by then uses either the Make or the Compat
* module to create the initial list of targets.
*
* Results:
* If -q was given, exits -1 if anything was out-of-date. Else it exits
* 0.
*
* Side Effects:
* The program exits when done. Targets are created. etc. etc. etc.
*/
int
main(int argc, char **argv)
{
Lst targs; /* target nodes to create -- passed to Make_Init */
Boolean outOfDate = FALSE; /* FALSE if all targets up to date */
struct stat sb, sa;
char *p1, *path;
char mdpath[MAXPATHLEN];
#ifdef FORCE_MACHINE
const char *machine = FORCE_MACHINE;
#else
const char *machine = getenv("MACHINE");
#endif
const char *machine_arch = getenv("MACHINE_ARCH");
char *syspath = getenv("MAKESYSPATH");
Lst sysMkPath; /* Path of sys.mk */
char *cp = NULL, *start;
/* avoid faults on read-only strings */
static char defsyspath[] = _PATH_DEFSYSPATH;
char found_path[MAXPATHLEN + 1]; /* for searching for sys.mk */
struct timeval rightnow; /* to initialize random seed */
struct utsname utsname;
/* default to writing debug to stderr */
debug_file = stderr;
#ifdef SIGINFO
(void)bmake_signal(SIGINFO, siginfo);
#endif
/*
* Set the seed to produce a different random sequence
* on each program execution.
*/
gettimeofday(&rightnow, NULL);
srandom(rightnow.tv_sec + rightnow.tv_usec);
if ((progname = strrchr(argv[0], '/')) != NULL)
progname++;
else
progname = argv[0];
#if defined(MAKE_NATIVE) || (defined(HAVE_SETRLIMIT) && defined(RLIMIT_NOFILE))
/*
* get rid of resource limit on file descriptors
*/
{
struct rlimit rl;
if (getrlimit(RLIMIT_NOFILE, &rl) != -1 &&
rl.rlim_cur != rl.rlim_max) {
rl.rlim_cur = rl.rlim_max;
(void)setrlimit(RLIMIT_NOFILE, &rl);
}
}
#endif
if (uname(&utsname) == -1) {
(void)fprintf(stderr, "%s: uname failed (%s).\n", progname,
strerror(errno));
exit(2);
}
/*
* Get the name of this type of MACHINE from utsname
* so we can share an executable for similar machines.
* (i.e. m68k: amiga hp300, mac68k, sun3, ...)
*
* Note that both MACHINE and MACHINE_ARCH are decided at
* run-time.
*/
if (!machine) {
#ifdef MAKE_NATIVE
machine = utsname.machine;
#else
#ifdef MAKE_MACHINE
machine = MAKE_MACHINE;
#else
machine = "unknown";
#endif
#endif
}
if (!machine_arch) {
#if defined(MAKE_NATIVE) && defined(HAVE_SYSCTL) && defined(CTL_HW) && defined(HW_MACHINE_ARCH)
static char machine_arch_buf[sizeof(utsname.machine)];
int mib[2] = { CTL_HW, HW_MACHINE_ARCH };
size_t len = sizeof(machine_arch_buf);
if (sysctl(mib, __arraycount(mib), machine_arch_buf,
&len, NULL, 0) < 0) {
(void)fprintf(stderr, "%s: sysctl failed (%s).\n", progname,
strerror(errno));
exit(2);
}
machine_arch = machine_arch_buf;
#else
#ifndef MACHINE_ARCH
#ifdef MAKE_MACHINE_ARCH
machine_arch = MAKE_MACHINE_ARCH;
#else
machine_arch = "unknown";
#endif
#else
machine_arch = MACHINE_ARCH;
#endif
#endif
}
myPid = getpid(); /* remember this for vFork() */
/*
* Just in case MAKEOBJDIR wants us to do something tricky.
*/
Var_Init(); /* Initialize the lists of variables for
* parsing arguments */
Var_Set(".MAKE.OS", utsname.sysname, VAR_GLOBAL, 0);
Var_Set("MACHINE", machine, VAR_GLOBAL, 0);
Var_Set("MACHINE_ARCH", machine_arch, VAR_GLOBAL, 0);
#ifdef MAKE_VERSION
Var_Set("MAKE_VERSION", MAKE_VERSION, VAR_GLOBAL, 0);
#endif
Var_Set(".newline", "\n", VAR_GLOBAL, 0); /* handy for :@ loops */
/*
* This is the traditional preference for makefiles.
*/
#ifndef MAKEFILE_PREFERENCE_LIST
# define MAKEFILE_PREFERENCE_LIST "makefile Makefile"
#endif
Var_Set(MAKEFILE_PREFERENCE, MAKEFILE_PREFERENCE_LIST,
VAR_GLOBAL, 0);
Var_Set(MAKE_DEPENDFILE, ".depend", VAR_GLOBAL, 0);
create = Lst_Init(FALSE);
makefiles = Lst_Init(FALSE);
printVars = FALSE;
debugVflag = FALSE;
variables = Lst_Init(FALSE);
beSilent = FALSE; /* Print commands as executed */
ignoreErrors = FALSE; /* Pay attention to non-zero returns */
noExecute = FALSE; /* Execute all commands */
noRecursiveExecute = FALSE; /* Execute all .MAKE targets */
keepgoing = FALSE; /* Stop on error */
allPrecious = FALSE; /* Remove targets when interrupted */
queryFlag = FALSE; /* This is not just a check-run */
noBuiltins = FALSE; /* Read the built-in rules */
touchFlag = FALSE; /* Actually update targets */
debug = 0; /* No debug verbosity, please. */
jobsRunning = FALSE;
maxJobs = DEFMAXLOCAL; /* Set default local max concurrency */
maxJobTokens = maxJobs;
compatMake = FALSE; /* No compat mode */
ignorePWD = FALSE;
/*
* Initialize the parsing, directory and variable modules to prepare
* for the reading of inclusion paths and variable settings on the
* command line
*/
/*
* Initialize various variables.
* MAKE also gets this name, for compatibility
* .MAKEFLAGS gets set to the empty string just in case.
* MFLAGS also gets initialized empty, for compatibility.
*/
Parse_Init();
if (argv[0][0] == '/' || strchr(argv[0], '/') == NULL) {
/*
* Leave alone if it is an absolute path, or if it does
* not contain a '/' in which case we need to find it in
* the path, like execvp(3) and the shells do.
*/
p1 = argv[0];
} else {
/*
* A relative path, canonicalize it.
*/
p1 = cached_realpath(argv[0], mdpath);
if (!p1 || *p1 != '/' || stat(p1, &sb) < 0) {
p1 = argv[0]; /* realpath failed */
}
}
Var_Set("MAKE", p1, VAR_GLOBAL, 0);
Var_Set(".MAKE", p1, VAR_GLOBAL, 0);
Var_Set(MAKEFLAGS, "", VAR_GLOBAL, 0);
Var_Set(MAKEOVERRIDES, "", VAR_GLOBAL, 0);
Var_Set("MFLAGS", "", VAR_GLOBAL, 0);
Var_Set(".ALLTARGETS", "", VAR_GLOBAL, 0);
/* some makefiles need to know this */
Var_Set(MAKE_LEVEL ".ENV", MAKE_LEVEL_ENV, VAR_CMD, 0);
/*
* Set some other useful macros
*/
{
char tmp[64], *ep;
makelevel = ((ep = getenv(MAKE_LEVEL_ENV)) && *ep) ? atoi(ep) : 0;
if (makelevel < 0)
makelevel = 0;
snprintf(tmp, sizeof(tmp), "%d", makelevel);
Var_Set(MAKE_LEVEL, tmp, VAR_GLOBAL, 0);
snprintf(tmp, sizeof(tmp), "%u", myPid);
Var_Set(".MAKE.PID", tmp, VAR_GLOBAL, 0);
snprintf(tmp, sizeof(tmp), "%u", getppid());
Var_Set(".MAKE.PPID", tmp, VAR_GLOBAL, 0);
}
if (makelevel > 0) {
char pn[1024];
snprintf(pn, sizeof(pn), "%s[%d]", progname, makelevel);
progname = bmake_strdup(pn);
}
#ifdef USE_META
meta_init();
#endif
/*
* First snag any flags out of the MAKE environment variable.
* (Note this is *not* MAKEFLAGS since /bin/make uses that and it's
* in a different format).
*/
#ifdef POSIX
p1 = explode(getenv("MAKEFLAGS"));
Main_ParseArgLine(p1);
free(p1);
#else
Main_ParseArgLine(getenv("MAKE"));
#endif
/*
* Find where we are (now).
* We take care of PWD for the automounter below...
*/
if (getcwd(curdir, MAXPATHLEN) == NULL) {
(void)fprintf(stderr, "%s: getcwd: %s.\n",
progname, strerror(errno));
exit(2);
}
MainParseArgs(argc, argv);
if (enterFlag)
printf("%s: Entering directory `%s'\n", progname, curdir);
/*
* Verify that cwd is sane.
*/
if (stat(curdir, &sa) == -1) {
(void)fprintf(stderr, "%s: %s: %s.\n",
progname, curdir, strerror(errno));
exit(2);
}
/*
* All this code is so that we know where we are when we start up
* on a different machine with pmake.
* Overriding getcwd() with $PWD totally breaks MAKEOBJDIRPREFIX
* since the value of curdir can vary depending on how we got
* here. Ie sitting at a shell prompt (shell that provides $PWD)
* or via subdir.mk in which case its likely a shell which does
* not provide it.
* So, to stop it breaking this case only, we ignore PWD if
* MAKEOBJDIRPREFIX is set or MAKEOBJDIR contains a transform.
*/
#ifndef NO_PWD_OVERRIDE
if (!ignorePWD) {
char *pwd, *ptmp1 = NULL, *ptmp2 = NULL;
if ((pwd = getenv("PWD")) != NULL &&
Var_Value("MAKEOBJDIRPREFIX", VAR_CMD, &ptmp1) == NULL) {
const char *makeobjdir = Var_Value("MAKEOBJDIR",
VAR_CMD, &ptmp2);
if (makeobjdir == NULL || !strchr(makeobjdir, '$')) {
if (stat(pwd, &sb) == 0 &&
sa.st_ino == sb.st_ino &&
sa.st_dev == sb.st_dev)
(void)strncpy(curdir, pwd, MAXPATHLEN);
}
}
free(ptmp1);
free(ptmp2);
}
#endif
Var_Set(".CURDIR", curdir, VAR_GLOBAL, 0);
/*
* Find the .OBJDIR. If MAKEOBJDIRPREFIX, or failing that,
* MAKEOBJDIR is set in the environment, try only that value
* and fall back to .CURDIR if it does not exist.
*
* Otherwise, try _PATH_OBJDIR.MACHINE, _PATH_OBJDIR, and
* finally _PATH_OBJDIRPREFIX`pwd`, in that order. If none
* of these paths exist, just use .CURDIR.
*/
Dir_Init(curdir);
(void)Main_SetObjdir(curdir);
if ((path = Var_Value("MAKEOBJDIRPREFIX", VAR_CMD, &p1)) != NULL) {
(void)snprintf(mdpath, MAXPATHLEN, "%s%s", path, curdir);
(void)Main_SetObjdir(mdpath);
free(p1);
} else if ((path = Var_Value("MAKEOBJDIR", VAR_CMD, &p1)) != NULL) {
(void)Main_SetObjdir(path);
free(p1);
} else {
(void)snprintf(mdpath, MAXPATHLEN, "%s.%s", _PATH_OBJDIR, machine);
if (!Main_SetObjdir(mdpath) && !Main_SetObjdir(_PATH_OBJDIR)) {
(void)snprintf(mdpath, MAXPATHLEN, "%s%s",
_PATH_OBJDIRPREFIX, curdir);
(void)Main_SetObjdir(mdpath);
}
}
/*
* Initialize archive, target and suffix modules in preparation for
* parsing the makefile(s)
*/
Arch_Init();
Targ_Init();
Suff_Init();
Trace_Init(tracefile);
DEFAULT = NULL;
(void)time(&now);
Trace_Log(MAKESTART, NULL);
/*
* Set up the .TARGETS variable to contain the list of targets to be
* created. If none specified, make the variable empty -- the parser
* will fill the thing in with the default or .MAIN target.
*/
if (!Lst_IsEmpty(create)) {
LstNode ln;
for (ln = Lst_First(create); ln != NULL;
ln = Lst_Succ(ln)) {
char *name = (char *)Lst_Datum(ln);
Var_Append(".TARGETS", name, VAR_GLOBAL);
}
} else
Var_Set(".TARGETS", "", VAR_GLOBAL, 0);
/*
* If no user-supplied system path was given (through the -m option)
* add the directories from the DEFSYSPATH (more than one may be given
* as dir1:...:dirn) to the system include path.
*/
if (syspath == NULL || *syspath == '\0')
syspath = defsyspath;
else
syspath = bmake_strdup(syspath);
for (start = syspath; *start != '\0'; start = cp) {
for (cp = start; *cp != '\0' && *cp != ':'; cp++)
continue;
if (*cp == ':') {
*cp++ = '\0';
}
/* look for magic parent directory search string */
if (strncmp(".../", start, 4) != 0) {
(void)Dir_AddDir(defIncPath, start);
} else {
if (Dir_FindHereOrAbove(curdir, start+4,
found_path, sizeof(found_path))) {
(void)Dir_AddDir(defIncPath, found_path);
}
}
}
if (syspath != defsyspath)
free(syspath);
/*
* Read in the built-in rules first, followed by the specified
* makefile, if it was (makefile != NULL), or the default
* makefile and Makefile, in that order, if it wasn't.
*/
if (!noBuiltins) {
LstNode ln;
sysMkPath = Lst_Init(FALSE);
Dir_Expand(_PATH_DEFSYSMK,
Lst_IsEmpty(sysIncPath) ? defIncPath : sysIncPath,
sysMkPath);
if (Lst_IsEmpty(sysMkPath))
Fatal("%s: no system rules (%s).", progname,
_PATH_DEFSYSMK);
ln = Lst_Find(sysMkPath, NULL, ReadMakefile);
if (ln == NULL)
Fatal("%s: cannot open %s.", progname,
(char *)Lst_Datum(ln));
}
if (!Lst_IsEmpty(makefiles)) {
LstNode ln;
ln = Lst_Find(makefiles, NULL, ReadAllMakefiles);
if (ln != NULL)
Fatal("%s: cannot open %s.", progname,
(char *)Lst_Datum(ln));
} else {
p1 = Var_Subst(NULL, "${" MAKEFILE_PREFERENCE "}",
VAR_CMD, VARF_WANTRES);
if (p1) {
(void)str2Lst_Append(makefiles, p1, NULL);
(void)Lst_Find(makefiles, NULL, ReadMakefile);
free(p1);
}
}
/* In particular suppress .depend for '-r -V .OBJDIR -f /dev/null' */
if (!noBuiltins || !printVars) {
makeDependfile = Var_Subst(NULL, "${.MAKE.DEPENDFILE:T}",
VAR_CMD, VARF_WANTRES);
doing_depend = TRUE;
(void)ReadMakefile(makeDependfile, NULL);
doing_depend = FALSE;
}
if (enterFlagObj)
printf("%s: Entering directory `%s'\n", progname, objdir);
MakeMode(NULL);
Var_Append("MFLAGS", Var_Value(MAKEFLAGS, VAR_GLOBAL, &p1), VAR_GLOBAL);
free(p1);
if (!forceJobs && !compatMake &&
Var_Exists(".MAKE.JOBS", VAR_GLOBAL)) {
char *value;
int n;
value = Var_Subst(NULL, "${.MAKE.JOBS}", VAR_GLOBAL, VARF_WANTRES);
n = strtol(value, NULL, 0);
if (n < 1) {
(void)fprintf(stderr, "%s: illegal value for .MAKE.JOBS -- must be positive integer!\n",
progname);
exit(1);
}
if (n != maxJobs) {
Var_Append(MAKEFLAGS, "-j", VAR_GLOBAL);
Var_Append(MAKEFLAGS, value, VAR_GLOBAL);
}
maxJobs = n;
maxJobTokens = maxJobs;
forceJobs = TRUE;
free(value);
}
/*
* Be compatible if user did not specify -j and did not explicitly
* turned compatibility on
*/
if (!compatMake && !forceJobs) {
compatMake = TRUE;
}
if (!compatMake)
Job_ServerStart(maxJobTokens, jp_0, jp_1);
if (DEBUG(JOB))
fprintf(debug_file, "job_pipe %d %d, maxjobs %d, tokens %d, compat %d\n",
jp_0, jp_1, maxJobs, maxJobTokens, compatMake);
Main_ExportMAKEFLAGS(TRUE); /* initial export */
/*
* For compatibility, look at the directories in the VPATH variable
* and add them to the search path, if the variable is defined. The
* variable's value is in the same format as the PATH envariable, i.e.
* <directory>:<directory>:<directory>...
*/
if (Var_Exists("VPATH", VAR_CMD)) {
char *vpath, savec;
/*
* GCC stores string constants in read-only memory, but
* Var_Subst will want to write this thing, so store it
* in an array
*/
static char VPATH[] = "${VPATH}";
vpath = Var_Subst(NULL, VPATH, VAR_CMD, VARF_WANTRES);
path = vpath;
do {
/* skip to end of directory */
for (cp = path; *cp != ':' && *cp != '\0'; cp++)
continue;
/* Save terminator character so know when to stop */
savec = *cp;
*cp = '\0';
/* Add directory to search path */
(void)Dir_AddDir(dirSearchPath, path);
*cp = savec;
path = cp + 1;
} while (savec == ':');
free(vpath);
}
/*
* Now that all search paths have been read for suffixes et al, it's
* time to add the default search path to their lists...
*/
Suff_DoPaths();
/*
* Propagate attributes through :: dependency lists.
*/
Targ_Propagate();
/* print the initial graph, if the user requested it */
if (DEBUG(GRAPH1))
Targ_PrintGraph(1);
/* print the values of any variables requested by the user */
if (printVars) {
LstNode ln;
Boolean expandVars;
if (debugVflag)
expandVars = FALSE;
else
expandVars = getBoolean(".MAKE.EXPAND_VARIABLES", FALSE);
for (ln = Lst_First(variables); ln != NULL;
ln = Lst_Succ(ln)) {
char *var = (char *)Lst_Datum(ln);
char *value;
if (strchr(var, '$')) {
value = p1 = Var_Subst(NULL, var, VAR_GLOBAL,
VARF_WANTRES);
} else if (expandVars) {
char tmp[128];
if (snprintf(tmp, sizeof(tmp), "${%s}", var) >= (int)(sizeof(tmp)))
Fatal("%s: variable name too big: %s",
progname, var);
value = p1 = Var_Subst(NULL, tmp, VAR_GLOBAL,
VARF_WANTRES);
} else {
value = Var_Value(var, VAR_GLOBAL, &p1);
}
printf("%s\n", value ? value : "");
free(p1);
}
} else {
/*
* Have now read the entire graph and need to make a list of
* targets to create. If none was given on the command line,
* we consult the parsing module to find the main target(s)
* to create.
*/
if (Lst_IsEmpty(create))
targs = Parse_MainName();
else
targs = Targ_FindList(create, TARG_CREATE);
if (!compatMake) {
/*
* Initialize job module before traversing the graph
* now that any .BEGIN and .END targets have been read.
* This is done only if the -q flag wasn't given
* (to prevent the .BEGIN from being executed should
* it exist).
*/
if (!queryFlag) {
Job_Init();
jobsRunning = TRUE;
}
/* Traverse the graph, checking on all the targets */
outOfDate = Make_Run(targs);
} else {
/*
* Compat_Init will take care of creating all the
* targets as well as initializing the module.
*/
Compat_Run(targs);
}
}
#ifdef CLEANUP
Lst_Destroy(targs, NULL);
Lst_Destroy(variables, NULL);
Lst_Destroy(makefiles, NULL);
Lst_Destroy(create, (FreeProc *)free);
#endif
/* print the graph now it's been processed if the user requested it */
if (DEBUG(GRAPH2))
Targ_PrintGraph(2);
Trace_Log(MAKEEND, 0);
if (enterFlagObj)
printf("%s: Leaving directory `%s'\n", progname, objdir);
if (enterFlag)
printf("%s: Leaving directory `%s'\n", progname, curdir);
#ifdef USE_META
meta_finish();
#endif
Suff_End();
Targ_End();
Arch_End();
Var_End();
Parse_End();
Dir_End();
Job_End();
Trace_End();
return outOfDate ? 1 : 0;
}
static Job *
prepare_job(GNode *gn, int flags)
{
bool cmdsOK; /* true if the nodes commands were all right */
bool noExec; /* Set true if we decide not to run the job */
/*
* Check the commands now so any attributes from .DEFAULT have a chance
* to migrate to the node
*/
cmdsOK = Job_CheckCommands(gn);
expand_commands(gn);
if ((gn->type & OP_MAKE) || (!noExecute && !touchFlag)) {
/*
* We're serious here, but if the commands were bogus, we're
* also dead...
*/
if (!cmdsOK)
job_failure(gn, Punt);
if (Lst_IsEmpty(&gn->commands))
noExec = true;
else
noExec = false;
} else if (noExecute) {
if (!cmdsOK || Lst_IsEmpty(&gn->commands))
noExec = true;
else
noExec = false;
} else {
/*
* Just touch the target and note that no shell should be
* executed. Check
* the commands, too, but don't die if they're no good -- it
* does no harm to keep working up the graph.
*/
Job_Touch(gn);
noExec = true;
}
/*
* If we're not supposed to execute a shell, don't.
*/
if (noExec) {
/*
* We only want to work our way up the graph if we aren't here
* because the commands for the job were no good.
*/
if (cmdsOK && !aborting) {
gn->built_status = MADE;
Make_Update(gn);
}
return NULL;
} else {
Job *job; /* new job descriptor */
job = emalloc(sizeof(Job));
if (job == NULL)
Punt("JobStart out of memory");
job->node = gn;
/*
* Set the initial value of the flags for this job based on the
* global ones and the node's attributes... Any flags supplied
* by the caller are also added to the field.
*/
job->flags = flags;
if (gn->type & OP_CHEAP)
return job;
if ((gn->type & OP_EXPENSIVE) ||
expensive_commands(&gn->expanded))
job->flags |= JOB_IS_EXPENSIVE;
return job;
}
}
