void
Init(void)
{
Init_Timestamp();
Init_Stats();
Targ_Init();
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 */
Arch_Init();
Suff_Init();
}
/*-
* 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* If -q was given, exits -1 if anything was out-of-date.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;
}
/*-
* 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));
}
/*-
* 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);
}