diff options
Diffstat (limited to 'usr.bin/make/main.c')
| -rw-r--r-- | usr.bin/make/main.c | 1339 |
1 files changed, 0 insertions, 1339 deletions
diff --git a/usr.bin/make/main.c b/usr.bin/make/main.c deleted file mode 100644 index f019d52..0000000 --- a/usr.bin/make/main.c +++ /dev/null @@ -1,1339 +0,0 @@ -/*- - * Copyright (c) 1988, 1989, 1990, 1993 - * The Regents of the University of California. All rights reserved. - * Copyright (c) 1989 by Berkeley Softworks - * All rights reserved. - * - * This code is derived from software contributed to Berkeley by - * Adam de Boor. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * @(#)main.c 8.3 (Berkeley) 3/19/94 - */ - -#ifndef lint -#if 0 -static char copyright[] = -"@(#) Copyright (c) 1988, 1989, 1990, 1993\n\ - The Regents of the University of California. All rights reserved.\n"; -#endif -#endif /* not lint */ -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -/* - * main.c - * The main file for this entire program. Exit routines etc - * reside here. - * - * Utility functions defined in this file: - * Main_ParseArgLine - * Takes a line of arguments, breaks them and - * treats them as if they were given when first - * invoked. Used by the parse module to implement - * the .MFLAGS target. - */ - -#include <sys/param.h> -#include <sys/stat.h> -#include <sys/time.h> -#include <sys/queue.h> -#include <sys/resource.h> -#include <sys/utsname.h> -#include <sys/wait.h> -#include <err.h> -#include <errno.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> - -#include "arch.h" -#include "buf.h" -#include "config.h" -#include "dir.h" -#include "globals.h" -#include "GNode.h" -#include "job.h" -#include "make.h" -#include "parse.h" -#include "pathnames.h" -#include "shell.h" -#include "str.h" -#include "suff.h" -#include "targ.h" -#include "util.h" -#include "var.h" - -extern char **environ; /* XXX what header declares this variable? */ - -#define WANT_ENV_MKLVL 1 -#define MKLVL_MAXVAL 500 -#define MKLVL_ENVVAR "__MKLVL__" - -/* ordered list of makefiles to read */ -static Lst makefiles = Lst_Initializer(makefiles); - -/* ordered list of source makefiles */ -static Lst source_makefiles = Lst_Initializer(source_makefiles); - -/* list of variables to print */ -static Lst variables = Lst_Initializer(variables); - -static Boolean expandVars; /* fully expand printed variables */ -static Boolean noBuiltins; /* -r flag */ -static Boolean forceJobs; /* -j argument given */ -static char *curdir; /* startup directory */ -static char *objdir; /* where we chdir'ed to */ -static char **save_argv; /* saved argv */ -static char *save_makeflags;/* saved MAKEFLAGS */ - -/* (-E) vars to override from env */ -Lst envFirstVars = Lst_Initializer(envFirstVars); - -/* Targets to be made */ -Lst create = Lst_Initializer(create); - -Boolean allPrecious; /* .PRECIOUS given on line by itself */ -Boolean is_posix; /* .POSIX target seen */ -Boolean mfAutoDeps; /* .MAKEFILEDEPS target seen */ -Boolean remakingMakefiles; /* True if remaking makefiles is in progress */ -Boolean beSilent; /* -s flag */ -Boolean beVerbose; /* -v flag */ -Boolean beQuiet; /* -Q flag */ -Boolean compatMake; /* -B argument */ -int debug; /* -d flag */ -Boolean ignoreErrors; /* -i flag */ -int jobLimit; /* -j argument */ -int makeErrors; /* Number of targets not remade due to errors */ -Boolean jobsRunning; /* TRUE if the jobs might be running */ -Boolean keepgoing; /* -k flag */ -Boolean noExecute; /* -n flag */ -Boolean printGraphOnly; /* -p flag */ -Boolean queryFlag; /* -q flag */ -Boolean touchFlag; /* -t flag */ -Boolean usePipes; /* !-P flag */ -uint32_t warn_cmd; /* command line warning flags */ -uint32_t warn_flags; /* actual warning flags */ -uint32_t warn_nocmd; /* command line no-warning flags */ - -time_t now; /* Time at start of make */ -struct GNode *DEFAULT; /* .DEFAULT node */ - -static struct { - const char *foreign_name; - const char *freebsd_name; -} arch_aliases[] = { - { "x86_64", "amd64" }, - { "mipsel", "mips" }, -}; - -/** - * Exit with usage message. - */ -static void -usage(void) -{ - fprintf(stderr, - "usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable]\n" - "\t[-d flags] [-E variable] [-f makefile] [-I directory]\n" - "\t[-j max_jobs] [-m directory] [-V variable]\n" - "\t[variable=value] [target ...]\n"); - exit(2); -} - -/** - * MFLAGS_append - * Append a flag with an optional argument to MAKEFLAGS and MFLAGS - */ -static void -MFLAGS_append(const char *flag, char *arg) -{ - char *str; - - Var_Append(".MAKEFLAGS", flag, VAR_GLOBAL); - if (arg != NULL) { - str = MAKEFLAGS_quote(arg); - Var_Append(".MAKEFLAGS", str, VAR_GLOBAL); - free(str); - } - - Var_Append("MFLAGS", flag, VAR_GLOBAL); - if (arg != NULL) { - str = MAKEFLAGS_quote(arg); - Var_Append("MFLAGS", str, VAR_GLOBAL); - free(str); - } -} - -/** - * Main_ParseWarn - * - * Handle argument to warning option. - */ -int -Main_ParseWarn(const char *arg, int iscmd) -{ - int i, neg; - - static const struct { - const char *option; - uint32_t flag; - } options[] = { - { "dirsyntax", WARN_DIRSYNTAX }, - { NULL, 0 } - }; - - neg = 0; - if (arg[0] == 'n' && arg[1] == 'o') { - neg = 1; - arg += 2; - } - - for (i = 0; options[i].option != NULL; i++) - if (strcmp(arg, options[i].option) == 0) - break; - - if (options[i].option == NULL) - /* unknown option */ - return (-1); - - if (iscmd) { - if (!neg) { - warn_cmd |= options[i].flag; - warn_nocmd &= ~options[i].flag; - warn_flags |= options[i].flag; - } else { - warn_nocmd |= options[i].flag; - warn_cmd &= ~options[i].flag; - warn_flags &= ~options[i].flag; - } - } else { - if (!neg) { - warn_flags |= (options[i].flag & ~warn_nocmd); - } else { - warn_flags &= ~(options[i].flag | warn_cmd); - } - } - return (0); -} - -/** - * Open and parse the given makefile. - * - * Results: - * TRUE if ok. FALSE if couldn't open file. - */ -static Boolean -ReadMakefile(const char p[]) -{ - char *fname, *fnamesave; /* makefile to read */ - FILE *stream; - char *name, path[MAXPATHLEN]; - char *MAKEFILE; - int setMAKEFILE; - - /* XXX - remove this once constification is done */ - fnamesave = fname = estrdup(p); - - if (!strcmp(fname, "-")) { - Parse_File("(stdin)", stdin); - Var_SetGlobal("MAKEFILE", ""); - } else { - setMAKEFILE = strcmp(fname, ".depend"); - - /* if we've chdir'd, rebuild the path name */ - if (curdir != objdir && *fname != '/') { - snprintf(path, MAXPATHLEN, "%s/%s", curdir, fname); - /* - * XXX The realpath stuff breaks relative includes - * XXX in some cases. The problem likely is in - * XXX parse.c where it does special things in - * XXX ParseDoInclude if the file is relative - * XXX or absolute and not a system file. There - * XXX it assumes that if the current file that's - * XXX being included is absolute, that any files - * XXX that it includes shouldn't do the -I path - * XXX stuff, which is inconsistent with historical - * XXX behavior. However, I can't penetrate the mists - * XXX further, so I'm putting this workaround in - * XXX here until such time as the underlying bug - * XXX can be fixed. - */ -#if THIS_BREAKS_THINGS - if (realpath(path, path) != NULL && - (stream = fopen(path, "r")) != NULL) { - MAKEFILE = fname; - fname = path; - goto found; - } - } else if (realpath(fname, path) != NULL) { - MAKEFILE = fname; - fname = path; - if ((stream = fopen(fname, "r")) != NULL) - goto found; - } -#else - if ((stream = fopen(path, "r")) != NULL) { - MAKEFILE = fname; - fname = path; - goto found; - } - } else { - MAKEFILE = fname; - if ((stream = fopen(fname, "r")) != NULL) - goto found; - } -#endif - /* look in -I and system include directories. */ - name = Path_FindFile(fname, &parseIncPath); - if (!name) - name = Path_FindFile(fname, &sysIncPath); - if (!name || !(stream = fopen(name, "r"))) { - free(fnamesave); - return (FALSE); - } - MAKEFILE = 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_SetGlobal("MAKEFILE", MAKEFILE); - Parse_File(fname, stream); - } - free(fnamesave); - return (TRUE); -} - -/** - * Open and parse the given makefile. - * If open is successful add it to the list of makefiles. - * - * Results: - * TRUE if ok. FALSE if couldn't open file. - */ -static Boolean -TryReadMakefile(const char p[]) -{ - char *data; - LstNode *last = Lst_Last(&source_makefiles); - - if (!ReadMakefile(p)) - return (FALSE); - - data = estrdup(p); - if (last == NULL) { - LstNode *first = Lst_First(&source_makefiles); - Lst_Insert(&source_makefiles, first, data); - } else - Lst_Append(&source_makefiles, last, estrdup(p)); - return (TRUE); -} - -/** - * MainParseArgs - * Parse a given argument vector. Called from main() and from - * Main_ParseArgLine() when the .MAKEFLAGS target is used. - * - * XXX: Deal with command line overriding .MAKEFLAGS in makefile - * - * Side Effects: - * Various global and local flags will be set depending on the flags - * given - */ -static void -MainParseArgs(int argc, char **argv) -{ - int c; - Boolean found_dd = FALSE; - char found_dir[MAXPATHLEN + 1]; /* for searching for sys.mk */ - -rearg: - optind = 1; /* since we're called more than once */ - optreset = 1; -#define OPTFLAGS "ABC:D:d:E:ef:I:ij:km:nPpQqrSstV:vXx:" - for (;;) { - if ((optind < argc) && strcmp(argv[optind], "--") == 0) { - found_dd = TRUE; - } - if ((c = getopt(argc, argv, OPTFLAGS)) == -1) { - break; - } - switch(c) { - - case 'A': - arch_fatal = FALSE; - MFLAGS_append("-A", NULL); - break; - case 'B': - compatMake = TRUE; - MFLAGS_append("-B", NULL); - unsetenv("MAKE_JOBS_FIFO"); - break; - case 'C': - if (chdir(optarg) == -1) - err(1, "chdir %s", optarg); - if (getcwd(curdir, MAXPATHLEN) == NULL) - err(2, NULL); - break; - case 'D': - Var_SetGlobal(optarg, "1"); - MFLAGS_append("-D", optarg); - break; - case 'd': { - char *modules = optarg; - - for (; *modules; ++modules) - switch (*modules) { - case 'A': - debug = ~0; - break; - case 'a': - debug |= DEBUG_ARCH; - break; - case 'c': - debug |= DEBUG_COND; - break; - case 'd': - debug |= DEBUG_DIR; - break; - case 'f': - debug |= DEBUG_FOR; - break; - case 'g': - if (modules[1] == '1') { - debug |= DEBUG_GRAPH1; - ++modules; - } - else if (modules[1] == '2') { - debug |= DEBUG_GRAPH2; - ++modules; - } - break; - case 'j': - debug |= DEBUG_JOB; - break; - case 'l': - debug |= DEBUG_LOUD; - break; - case 'm': - debug |= DEBUG_MAKE; - break; - case 's': - debug |= DEBUG_SUFF; - break; - case 't': - debug |= DEBUG_TARG; - break; - case 'v': - debug |= DEBUG_VAR; - break; - default: - warnx("illegal argument to d option " - "-- %c", *modules); - usage(); - } - MFLAGS_append("-d", optarg); - break; - } - case 'E': - Lst_AtEnd(&envFirstVars, estrdup(optarg)); - MFLAGS_append("-E", optarg); - break; - case 'e': - checkEnvFirst = TRUE; - MFLAGS_append("-e", NULL); - break; - case 'f': - Lst_AtEnd(&makefiles, estrdup(optarg)); - break; - case 'I': - Parse_AddIncludeDir(optarg); - MFLAGS_append("-I", optarg); - break; - case 'i': - ignoreErrors = TRUE; - MFLAGS_append("-i", NULL); - break; - case 'j': { - char *endptr; - - forceJobs = TRUE; - jobLimit = strtol(optarg, &endptr, 10); - if (jobLimit <= 0 || *endptr != '\0') { - warnx("illegal number, -j argument -- %s", - optarg); - usage(); - } - MFLAGS_append("-j", optarg); - break; - } - case 'k': - keepgoing = TRUE; - MFLAGS_append("-k", NULL); - break; - case 'm': - /* look for magic parent directory search string */ - if (strncmp(".../", optarg, 4) == 0) { - if (!Dir_FindHereOrAbove(curdir, optarg + 4, - found_dir, sizeof(found_dir))) - break; /* nothing doing */ - Path_AddDir(&sysIncPath, found_dir); - } else { - Path_AddDir(&sysIncPath, optarg); - } - MFLAGS_append("-m", optarg); - break; - case 'n': - noExecute = TRUE; - MFLAGS_append("-n", NULL); - break; - case 'P': - usePipes = FALSE; - MFLAGS_append("-P", NULL); - break; - case 'p': - printGraphOnly = TRUE; - debug |= DEBUG_GRAPH1; - break; - case 'Q': - beQuiet = TRUE; - beVerbose = FALSE; - MFLAGS_append("-Q", NULL); - break; - case 'q': - queryFlag = TRUE; - /* Kind of nonsensical, wot? */ - MFLAGS_append("-q", NULL); - break; - case 'r': - noBuiltins = TRUE; - MFLAGS_append("-r", NULL); - break; - case 'S': - keepgoing = FALSE; - MFLAGS_append("-S", NULL); - break; - case 's': - beSilent = TRUE; - MFLAGS_append("-s", NULL); - break; - case 't': - touchFlag = TRUE; - MFLAGS_append("-t", NULL); - break; - case 'V': - Lst_AtEnd(&variables, estrdup(optarg)); - MFLAGS_append("-V", optarg); - break; - case 'v': - beVerbose = TRUE; - beQuiet = FALSE; - MFLAGS_append("-v", NULL); - break; - case 'X': - expandVars = FALSE; - break; - case 'x': - if (Main_ParseWarn(optarg, 1) != -1) - MFLAGS_append("-x", optarg); - break; - - default: - case '?': - usage(); - } - } - argv += optind; - argc -= optind; - - oldVars = TRUE; - - /* - * Parse the rest of the arguments. - * o Check for variable assignments and perform them if so. - * o Check for more flags and restart getopt if so. - * o Anything else is taken to be a target and added - * to the end of the "create" list. - */ - for (; *argv != NULL; ++argv, --argc) { - if (Parse_IsVar(*argv)) { - char *ptr = MAKEFLAGS_quote(*argv); - char *v = estrdup(*argv); - - Var_Append(".MAKEFLAGS", ptr, VAR_GLOBAL); - Parse_DoVar(v, VAR_CMD); - free(ptr); - free(v); - - } else if ((*argv)[0] == '-') { - if ((*argv)[1] == '\0') { - /* - * (*argv) is a single dash, so we - * just ignore it. - */ - } else if (found_dd) { - /* - * Double dash has been found, ignore - * any more options. But what do we do - * with it? For now treat it like a target. - */ - Lst_AtEnd(&create, estrdup(*argv)); - } else { - /* - * (*argv) is a -flag, so backup argv and - * argc. getopt() expects options to start - * in the 2nd position. - */ - argc++; - argv--; - goto rearg; - } - - } else if ((*argv)[0] == '\0') { - Punt("illegal (null) argument."); - - } else { - Lst_AtEnd(&create, estrdup(*argv)); - } - } -} - -/** - * Main_ParseArgLine - * Used by the parse module when a .MFLAGS or .MAKEFLAGS target - * is encountered and by main() when reading the .MAKEFLAGS envariable. - * Takes a line of arguments and breaks it into its - * component words and passes those words and the number of them to the - * MainParseArgs function. - * The line should have all its leading whitespace removed. - * - * Side Effects: - * Only those that come from the various arguments. - */ -void -Main_ParseArgLine(char *line, int mflags) -{ - ArgArray aa; - - if (line == NULL) - return; - for (; *line == ' '; ++line) - continue; - if (!*line) - return; - - if (mflags) - MAKEFLAGS_break(&aa, line); - else - brk_string(&aa, line, TRUE); - - MainParseArgs(aa.argc, aa.argv); - ArgArray_Done(&aa); -} - -static char * -chdir_verify_path(const char *path, char *obpath) -{ - struct stat sb; - - if (stat(path, &sb) == 0 && S_ISDIR(sb.st_mode)) { - if (chdir(path) == -1 || getcwd(obpath, MAXPATHLEN) == NULL) { - warn("warning: %s", path); - return (NULL); - } - return (obpath); - } - - return (NULL); -} - -/** - * In lieu of a good way to prevent every possible looping in make(1), stop - * there from being more than MKLVL_MAXVAL processes forked by make(1), to - * prevent a forkbomb from happening, in a dumb and mechanical way. - * - * Side Effects: - * Creates or modifies environment variable MKLVL_ENVVAR via setenv(). - */ -static void -check_make_level(void) -{ -#ifdef WANT_ENV_MKLVL - char *value = getenv(MKLVL_ENVVAR); - int level = (value == NULL) ? 0 : atoi(value); - - if (level < 0) { - errx(2, "Invalid value for recursion level (%d).", level); - } else if (level > MKLVL_MAXVAL) { - errx(2, "Max recursion level (%d) exceeded.", MKLVL_MAXVAL); - } else { - char new_value[32]; - sprintf(new_value, "%d", level + 1); - setenv(MKLVL_ENVVAR, new_value, 1); - } -#endif /* WANT_ENV_MKLVL */ -} - -/** - * Main_AddSourceMakefile - * Add a file to the list of source makefiles - */ -void -Main_AddSourceMakefile(const char *name) -{ - - Lst_AtEnd(&source_makefiles, estrdup(name)); -} - -/** - * Remake_Makefiles - * Remake all the makefiles - */ -static void -Remake_Makefiles(void) -{ - Lst cleanup; - LstNode *ln; - int error_cnt = 0; - int remade_cnt = 0; - - Compat_InstallSignalHandlers(); - if (curdir != objdir) { - if (chdir(curdir) < 0) - Fatal("Failed to change directory to %s.", curdir); - } - - Lst_Init(&cleanup); - LST_FOREACH(ln, &source_makefiles) { - LstNode *ln2; - struct GNode *gn; - const char *name = Lst_Datum(ln); - Boolean saveTouchFlag = touchFlag; - Boolean saveQueryFlag = queryFlag; - Boolean saveNoExecute = noExecute; - int mtime; - - /* - * Create node - */ - gn = Targ_FindNode(name, TARG_CREATE); - DEBUGF(MAKE, ("Checking %s...", gn->name)); - Suff_FindDeps(gn); - - /* - * -t, -q and -n has no effect unless the makefile is - * specified as one of the targets explicitly in the - * command line - */ - LST_FOREACH(ln2, &create) { - if (!strcmp(gn->name, Lst_Datum(ln2))) { - /* found as a target */ - break; - } - } - if (ln2 == NULL) { - touchFlag = FALSE; - queryFlag = FALSE; - noExecute = FALSE; - } - - /* - * Check and remake the makefile - */ - mtime = Dir_MTime(gn); - remakingMakefiles = TRUE; - Compat_Make(gn, gn); - remakingMakefiles = FALSE; - - /* - * Restore -t, -q and -n behaviour - */ - touchFlag = saveTouchFlag; - queryFlag = saveQueryFlag; - noExecute = saveNoExecute; - - /* - * Compat_Make will leave the 'made' field of gn - * in one of the following 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. - */ - if (gn->made == MADE) { - if (mtime != Dir_MTime(gn)) { - DEBUGF(MAKE, - ("%s updated (%d -> %d).\n", - gn->name, mtime, gn->mtime)); - remade_cnt++; - } else { - DEBUGF(MAKE, - ("%s not updated: skipping restart.\n", - gn->name)); - } - } else if (gn->made == ERROR) - error_cnt++; - else if (gn->made == ABORTED) { - printf("`%s' not remade because of errors.\n", - gn->name); - error_cnt++; - } else if (gn->made == UPTODATE) { - Lst_EnQueue(&cleanup, gn); - } - } - - if (error_cnt > 0) - Fatal("Failed to remake Makefiles."); - if (remade_cnt > 0) { - DEBUGF(MAKE, ("Restarting `%s'.\n", save_argv[0])); - - /* - * Some of makefiles were remade -- restart from clean state - */ - if (save_makeflags != NULL) - setenv("MAKEFLAGS", save_makeflags, 1); - else - unsetenv("MAKEFLAGS"); - if (execvp(save_argv[0], save_argv) < 0) { - Fatal("Can't restart `%s': %s.", - save_argv[0], strerror(errno)); - } - } - - while (!Lst_IsEmpty(&cleanup)) { - GNode *gn = Lst_DeQueue(&cleanup); - - gn->unmade = 0; - gn->make = FALSE; - gn->made = UNMADE; - gn->childMade = FALSE; - gn->mtime = gn->cmtime = 0; - gn->cmtime_gn = NULL; - - LST_FOREACH(ln, &gn->children) { - GNode *cgn = Lst_Datum(ln); - - gn->unmade++; - Lst_EnQueue(&cleanup, cgn); - } - } - - if (curdir != objdir) { - if (chdir(objdir) < 0) - Fatal("Failed to change directory to %s.", objdir); - } -} - -/** - * 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) -{ - const char *machine; - const char *machine_arch; - const char *machine_cpu; - Boolean outOfDate = TRUE; /* FALSE if all targets up to date */ - const char *p; - const char *pathp; - const char *path; - char mdpath[MAXPATHLEN]; - char obpath[MAXPATHLEN]; - char cdpath[MAXPATHLEN]; - char found_dir[MAXPATHLEN + 1]; /* for searching for sys.mk */ - char *cp = NULL, *start; - - save_argv = argv; - save_makeflags = getenv("MAKEFLAGS"); - if (save_makeflags != NULL) - save_makeflags = estrdup(save_makeflags); - - /* - * Initialize file global variables. - */ - expandVars = TRUE; - noBuiltins = FALSE; /* Read the built-in rules */ - forceJobs = FALSE; /* No -j flag */ - curdir = cdpath; - - /* - * Initialize program global variables. - */ - beSilent = FALSE; /* Print commands as executed */ - ignoreErrors = FALSE; /* Pay attention to non-zero returns */ - noExecute = FALSE; /* Execute all commands */ - printGraphOnly = FALSE; /* Don't stop after printing graph */ - keepgoing = FALSE; /* Stop on error */ - allPrecious = FALSE; /* Remove targets when interrupted */ - queryFlag = FALSE; /* This is not just a check-run */ - touchFlag = FALSE; /* Actually update targets */ - usePipes = TRUE; /* Catch child output in pipes */ - debug = 0; /* No debug verbosity, please. */ - jobsRunning = FALSE; - - jobLimit = DEFMAXJOBS; - compatMake = FALSE; /* No compat mode */ - - check_make_level(); - -#ifdef RLIMIT_NOFILE - /* - * get rid of resource limit on file descriptors - */ - { - struct rlimit rl; - if (getrlimit(RLIMIT_NOFILE, &rl) == -1) { - err(2, "getrlimit"); - } - rl.rlim_cur = rl.rlim_max; - if (setrlimit(RLIMIT_NOFILE, &rl) == -1) { - err(2, "setrlimit"); - } - } -#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 = getenv("MACHINE")) == NULL) { - static struct utsname utsname; - unsigned int i; - - if (uname(&utsname) == -1) - err(2, "uname"); - machine = utsname.machine; - - /* Canonicalize non-FreeBSD naming conventions */ - for (i = 0; i < sizeof(arch_aliases) - / sizeof(arch_aliases[0]); i++) - if (!strcmp(machine, arch_aliases[i].foreign_name)) { - machine = arch_aliases[i].freebsd_name; - break; - } - } - - if ((machine_arch = getenv("MACHINE_ARCH")) == NULL) { -#ifdef MACHINE_ARCH - machine_arch = MACHINE_ARCH; -#else - machine_arch = "unknown"; -#endif - } - - /* - * Set machine_cpu to the minimum supported CPU revision based - * on the target architecture, if not already set. - */ - if ((machine_cpu = getenv("MACHINE_CPU")) == NULL) { - if (!strcmp(machine_arch, "i386")) - machine_cpu = "i486"; - else - machine_cpu = "unknown"; - } - - /* - * Initialize the parsing, directory and variable modules to prepare - * for the reading of inclusion paths and variable settings on the - * command line - */ - Proc_Init(); - - Dir_Init(); /* Initialize directory structures so -I flags - * can be processed correctly */ - Var_Init(environ); /* As well as the lists of variables for - * parsing arguments */ - - /* - * Initialize the Shell so that we have a shell for != assignments - * on the command line. - */ - Shell_Init(); - - /* - * 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_SetGlobal("MAKE", argv[0]); - Var_SetGlobal(".MAKEFLAGS", ""); - Var_SetGlobal("MFLAGS", ""); - Var_SetGlobal("MACHINE", machine); - Var_SetGlobal("MACHINE_ARCH", machine_arch); - Var_SetGlobal("MACHINE_CPU", machine_cpu); -#ifdef MAKE_VERSION - Var_SetGlobal("MAKE_VERSION", MAKE_VERSION); -#endif - Var_SetGlobal(".newline", "\n"); /* handy for :@ loops */ - { - char tmp[64]; - - snprintf(tmp, sizeof(tmp), "%u", getpid()); - Var_SetGlobal(".MAKE.PID", tmp); - snprintf(tmp, sizeof(tmp), "%u", getppid()); - Var_SetGlobal(".MAKE.PPID", tmp); - } - Job_SetPrefix(); - - /* - * Find where we are... - */ - if (getcwd(curdir, MAXPATHLEN) == NULL) - err(2, NULL); - - /* - * First snag things out of the MAKEFLAGS environment - * variable. Then parse the command line arguments. - */ - Main_ParseArgLine(getenv("MAKEFLAGS"), 1); - - MainParseArgs(argc, argv); - - /* - * Verify that cwd is sane (after -C may have changed it). - */ - { - struct stat sa; - - if (stat(curdir, &sa) == -1) - err(2, "%s", curdir); - } - - /* - * The object directory location is determined using the - * following order of preference: - * - * 1. MAKEOBJDIRPREFIX`cwd` - * 2. MAKEOBJDIR - * 3. PATH_OBJDIR.${MACHINE} - * 4. PATH_OBJDIR - * 5. PATH_OBJDIRPREFIX`cwd` - * - * If one of the first two fails, use the current directory. - * If the remaining three all fail, use the current directory. - * - * Once things are initted, - * have to add the original directory to the search path, - * and modify the paths for the Makefiles appropriately. The - * current directory is also placed as a variable for make scripts. - */ - if (!(pathp = getenv("MAKEOBJDIRPREFIX"))) { - if (!(path = getenv("MAKEOBJDIR"))) { - path = PATH_OBJDIR; - pathp = PATH_OBJDIRPREFIX; - snprintf(mdpath, MAXPATHLEN, "%s.%s", path, machine); - if (!(objdir = chdir_verify_path(mdpath, obpath))) - if (!(objdir=chdir_verify_path(path, obpath))) { - snprintf(mdpath, MAXPATHLEN, - "%s%s", pathp, curdir); - if (!(objdir=chdir_verify_path(mdpath, - obpath))) - objdir = curdir; - } - } - else if (!(objdir = chdir_verify_path(path, obpath))) - objdir = curdir; - } - else { - snprintf(mdpath, MAXPATHLEN, "%s%s", pathp, curdir); - if (!(objdir = chdir_verify_path(mdpath, obpath))) - objdir = curdir; - } - Dir_InitDot(); /* Initialize the "." directory */ - if (objdir != curdir) - Path_AddDir(&dirSearchPath, curdir); - Var_SetGlobal(".ST_EXPORTVAR", "YES"); - Var_SetGlobal(".CURDIR", curdir); - Var_SetGlobal(".OBJDIR", objdir); - - if (getenv("MAKE_JOBS_FIFO") != NULL) - forceJobs = TRUE; - /* - * Be compatible if user did not specify -j and did not explicitly - * turned compatibility on - */ - if (!compatMake && !forceJobs) - compatMake = TRUE; - - /* - * Initialize target and suffix modules in preparation for - * parsing the makefile(s) - */ - Targ_Init(); - Suff_Init(); - - DEFAULT = NULL; - 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)) { - Var_SetGlobal(".TARGETS", ""); - } else { - LstNode *ln; - - for (ln = Lst_First(&create); ln != NULL; ln = Lst_Succ(ln)) { - char *name = Lst_Datum(ln); - - Var_Append(".TARGETS", name, VAR_GLOBAL); - } - } - - - /* - * 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 (TAILQ_EMPTY(&sysIncPath)) { - char defsyspath[] = PATH_DEFSYSPATH; - char *syspath = getenv("MAKESYSPATH"); - - /* - * If no user-supplied system path was given (thru -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 = estrdup(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) { - if (Dir_FindHereOrAbove(curdir, start + 4, - found_dir, sizeof(found_dir))) { - Path_AddDir(&sysIncPath, found_dir); - } - } else { - Path_AddDir(&sysIncPath, start); - } - } - if (syspath != defsyspath) - free(syspath); - } - - /* - * 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) { - /* Path of sys.mk */ - Lst sysMkPath = Lst_Initializer(sysMkPath); - LstNode *ln; - char defsysmk[] = PATH_DEFSYSMK; - - Path_Expand(defsysmk, &sysIncPath, &sysMkPath); - if (Lst_IsEmpty(&sysMkPath)) - Fatal("make: no system rules (%s).", PATH_DEFSYSMK); - LST_FOREACH(ln, &sysMkPath) { - if (!ReadMakefile(Lst_Datum(ln))) - break; - } - if (ln != NULL) - Fatal("make: cannot open %s.", (char *)Lst_Datum(ln)); - Lst_Destroy(&sysMkPath, free); - } - - if (!Lst_IsEmpty(&makefiles)) { - LstNode *ln; - - LST_FOREACH(ln, &makefiles) { - if (!TryReadMakefile(Lst_Datum(ln))) - break; - } - if (ln != NULL) - Fatal("make: cannot open %s.", (char *)Lst_Datum(ln)); - } else if (!TryReadMakefile("BSDmakefile")) - if (!TryReadMakefile("makefile")) - TryReadMakefile("Makefile"); - - ReadMakefile(".depend"); - - /* Install all the flags into the MAKEFLAGS envariable. */ - if (((p = Var_Value(".MAKEFLAGS", VAR_GLOBAL)) != NULL) && *p) - setenv("MAKEFLAGS", p, 1); - else - setenv("MAKEFLAGS", "", 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("VPATH", VAR_CMD)) { - /* - * 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}"; - Buffer *buf; - char *vpath; - char *ptr; - char savec; - - buf = Var_Subst(VPATH, VAR_CMD, FALSE); - - vpath = Buf_Data(buf); - do { - /* skip to end of directory */ - for (ptr = vpath; *ptr != ':' && *ptr != '\0'; ptr++) - ; - - /* Save terminator character so know when to stop */ - savec = *ptr; - *ptr = '\0'; - - /* Add directory to search path */ - Path_AddDir(&dirSearchPath, vpath); - - vpath = ptr + 1; - } while (savec != '\0'); - - Buf_Destroy(buf, TRUE); - } - - /* - * 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); - - /* print the values of any variables requested by the user */ - if (Lst_IsEmpty(&variables) && !printGraphOnly) { - /* - * Since the user has not requested that any variables - * be printed, we can build targets. - * - * Have 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. - */ - Lst targs = Lst_Initializer(targs); - - if (!is_posix && mfAutoDeps) { - /* - * Check if any of the makefiles are out-of-date. - */ - Remake_Makefiles(); - } - - if (Lst_IsEmpty(&create)) - Parse_MainName(&targs); - else - Targ_FindList(&targs, &create, TARG_CREATE); - - if (compatMake) { - /* - * Compat_Init will take care of creating - * all the targets as well as initializing - * the module. - */ - Compat_Run(&targs); - outOfDate = 0; - } else { - /* - * 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(jobLimit); - jobsRunning = TRUE; - } - - /* Traverse the graph, checking on all the targets */ - outOfDate = Make_Run(&targs); - } - Lst_Destroy(&targs, NOFREE); - - } else { - Var_Print(&variables, expandVars); - } - - Lst_Destroy(&variables, free); - Lst_Destroy(&makefiles, free); - Lst_Destroy(&source_makefiles, free); - Lst_Destroy(&create, free); - - /* print the graph now it's been processed if the user requested it */ - if (DEBUG(GRAPH2)) - Targ_PrintGraph(2); - - if (queryFlag) - return (outOfDate); - - if (makeErrors != 0) - Finish(makeErrors); - - return (0); -} |
