diff options
Diffstat (limited to 'main.c')
| -rw-r--r-- | main.c | 1934 |
1 files changed, 1934 insertions, 0 deletions
@@ -0,0 +1,1934 @@ +/* $NetBSD: main.c,v 1.210 2013/03/23 05:31:29 sjg Exp $ */ + +/* + * Copyright (c) 1988, 1989, 1990, 1993 + * The Regents of the University of California. 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. 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. + */ + +/* + * 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. + */ + +#ifndef MAKE_NATIVE +static char rcsid[] = "$NetBSD: main.c,v 1.210 2013/03/23 05:31:29 sjg Exp $"; +#else +#include <sys/cdefs.h> +#ifndef lint +__COPYRIGHT("@(#) Copyright (c) 1988, 1989, 1990, 1993\ + The Regents of the University of California. All rights reserved."); +#endif /* not lint */ + +#ifndef lint +#if 0 +static char sccsid[] = "@(#)main.c 8.3 (Berkeley) 3/19/94"; +#else +__RCSID("$NetBSD: main.c,v 1.210 2013/03/23 05:31:29 sjg Exp $"); +#endif +#endif /* not lint */ +#endif + +/*- + * 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. + * + * Error Print a tagged error message. The global + * MAKE variable must have been defined. This + * takes a format string and two optional + * arguments for it. + * + * Fatal Print an error message and exit. Also takes + * a format string and two arguments. + * + * Punt Aborts all jobs and exits with a message. Also + * takes a format string and two arguments. + * + * Finish Finish things up by printing the number of + * errors which occurred, as passed to it, and + * exiting. + */ + +#include <sys/types.h> +#include <sys/time.h> +#include <sys/param.h> +#include <sys/resource.h> +#include <signal.h> +#include <sys/stat.h> +#include <sys/utsname.h> +#include "wait.h" + +#include <errno.h> +#include <fcntl.h> +#include <stdarg.h> +#include <stdio.h> +#include <stdlib.h> +#include <time.h> + +#include "make.h" +#include "hash.h" +#include "dir.h" +#include "job.h" +#include "pathnames.h" +#include "trace.h" + +#ifdef USE_IOVEC +#include <sys/uio.h> +#endif + +#ifndef DEFMAXLOCAL +#define DEFMAXLOCAL DEFMAXJOBS +#endif /* DEFMAXLOCAL */ + +Lst create; /* Targets to be made */ +time_t now; /* Time at start of make */ +GNode *DEFAULT; /* .DEFAULT node */ +Boolean allPrecious; /* .PRECIOUS given on line by itself */ + +static Boolean noBuiltins; /* -r flag */ +static Lst makefiles; /* ordered list of makefiles to read */ +static Boolean printVars; /* print value of one or more vars */ +static Lst variables; /* list of variables to print */ +int maxJobs; /* -j argument */ +static int maxJobTokens; /* -j argument */ +Boolean compatMake; /* -B argument */ +int debug; /* -d argument */ +Boolean debugVflag; /* -dV */ +Boolean noExecute; /* -n flag */ +Boolean noRecursiveExecute; /* -N flag */ +Boolean keepgoing; /* -k flag */ +Boolean queryFlag; /* -q flag */ +Boolean touchFlag; /* -t flag */ +Boolean ignoreErrors; /* -i flag */ +Boolean beSilent; /* -s flag */ +Boolean oldVars; /* variable substitution style */ +Boolean checkEnvFirst; /* -e flag */ +Boolean parseWarnFatal; /* -W flag */ +Boolean jobServer; /* -J flag */ +static int jp_0 = -1, jp_1 = -1; /* ends of parent job pipe */ +Boolean varNoExportEnv; /* -X flag */ +Boolean doing_depend; /* Set while reading .depend */ +static Boolean jobsRunning; /* TRUE if the jobs might be running */ +static const char * tracefile; +static void MainParseArgs(int, char **); +static int ReadMakefile(const void *, const void *); +static void usage(void) MAKE_ATTR_DEAD; + +static Boolean ignorePWD; /* if we use -C, PWD is meaningless */ +static char objdir[MAXPATHLEN + 1]; /* where we chdir'ed to */ +char curdir[MAXPATHLEN + 1]; /* Startup directory */ +char *progname; /* the program name */ +char *makeDependfile; +pid_t myPid; + +Boolean forceJobs = FALSE; + +/* + * On some systems MACHINE is defined as something other than + * what we want. + */ +#ifdef FORCE_MACHINE +# undef MACHINE +# define MACHINE FORCE_MACHINE +#endif + +extern Lst parseIncPath; + +static void +parse_debug_options(const char *argvalue) +{ + const char *modules; + const char *mode; + char *fname; + int len; + + for (modules = argvalue; *modules; ++modules) { + switch (*modules) { + case 'A': + debug = ~0; + break; + case 'a': + debug |= DEBUG_ARCH; + break; + case 'C': + debug |= DEBUG_CWD; + break; + case 'c': + debug |= DEBUG_COND; + break; + case 'd': + debug |= DEBUG_DIR; + break; + case 'e': + debug |= DEBUG_ERROR; + 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; + } + else if (modules[1] == '3') { + debug |= DEBUG_GRAPH3; + ++modules; + } + break; + case 'j': + debug |= DEBUG_JOB; + break; + case 'l': + debug |= DEBUG_LOUD; + break; + case 'M': + debug |= DEBUG_META; + break; + case 'm': + debug |= DEBUG_MAKE; + break; + case 'n': + debug |= DEBUG_SCRIPT; + break; + case 'p': + debug |= DEBUG_PARSE; + break; + case 's': + debug |= DEBUG_SUFF; + break; + case 't': + debug |= DEBUG_TARG; + break; + case 'V': + debugVflag = TRUE; + break; + case 'v': + debug |= DEBUG_VAR; + break; + case 'x': + debug |= DEBUG_SHELL; + break; + case 'F': + if (debug_file != stdout && debug_file != stderr) + fclose(debug_file); + if (*++modules == '+') { + modules++; + mode = "a"; + } else + mode = "w"; + if (strcmp(modules, "stdout") == 0) { + debug_file = stdout; + goto debug_setbuf; + } + if (strcmp(modules, "stderr") == 0) { + debug_file = stderr; + goto debug_setbuf; + } + len = strlen(modules); + fname = malloc(len + 20); + memcpy(fname, modules, len + 1); + /* Let the filename be modified by the pid */ + if (strcmp(fname + len - 3, ".%d") == 0) + snprintf(fname + len - 2, 20, "%d", getpid()); + debug_file = fopen(fname, mode); + if (!debug_file) { + fprintf(stderr, "Cannot open debug file %s\n", + fname); + usage(); + } + free(fname); + goto debug_setbuf; + default: + (void)fprintf(stderr, + "%s: illegal argument to d option -- %c\n", + progname, *modules); + usage(); + } + } +debug_setbuf: + /* + * Make the debug_file unbuffered, and make + * stdout line buffered (unless debugfile == stdout). + */ + setvbuf(debug_file, NULL, _IONBF, 0); + if (debug_file != stdout) { + setvbuf(stdout, NULL, _IOLBF, 0); + } +} + +/*- + * 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 + * + * Results: + * None + * + * Side Effects: + * Various global and local flags will be set depending on the flags + * given + */ +static void +MainParseArgs(int argc, char **argv) +{ + char *p; + int c = '?'; + int arginc; + char *argvalue; + const char *getopt_def; + char *optscan; + Boolean inOption, dashDash = FALSE; + char found_path[MAXPATHLEN + 1]; /* for searching for sys.mk */ + +#define OPTFLAGS "BC:D:I:J:NST:V:WXd:ef:ij:km:nqrst" +/* Can't actually use getopt(3) because rescanning is not portable */ + + getopt_def = OPTFLAGS; +rearg: + inOption = FALSE; + optscan = NULL; + while(argc > 1) { + char *getopt_spec; + if(!inOption) + optscan = argv[1]; + c = *optscan++; + arginc = 0; + if(inOption) { + if(c == '\0') { + ++argv; + --argc; + inOption = FALSE; + continue; + } + } else { + if (c != '-' || dashDash) + break; + inOption = TRUE; + c = *optscan++; + } + /* '-' found at some earlier point */ + getopt_spec = strchr(getopt_def, c); + if(c != '\0' && getopt_spec != NULL && getopt_spec[1] == ':') { + /* -<something> found, and <something> should have an arg */ + inOption = FALSE; + arginc = 1; + argvalue = optscan; + if(*argvalue == '\0') { + if (argc < 3) + goto noarg; + argvalue = argv[2]; + arginc = 2; + } + } else { + argvalue = NULL; + } + switch(c) { + case '\0': + arginc = 1; + inOption = FALSE; + break; + case 'B': + compatMake = TRUE; + Var_Append(MAKEFLAGS, "-B", VAR_GLOBAL); + Var_Set(MAKE_MODE, "compat", VAR_GLOBAL, 0); + break; + case 'C': + if (chdir(argvalue) == -1) { + (void)fprintf(stderr, + "%s: chdir %s: %s\n", + progname, argvalue, + strerror(errno)); + exit(1); + } + if (getcwd(curdir, MAXPATHLEN) == NULL) { + (void)fprintf(stderr, "%s: %s.\n", progname, strerror(errno)); + exit(2); + } + ignorePWD = TRUE; + break; + case 'D': + if (argvalue == NULL || argvalue[0] == 0) goto noarg; + Var_Set(argvalue, "1", VAR_GLOBAL, 0); + Var_Append(MAKEFLAGS, "-D", VAR_GLOBAL); + Var_Append(MAKEFLAGS, argvalue, VAR_GLOBAL); + break; + case 'I': + if (argvalue == NULL) goto noarg; + Parse_AddIncludeDir(argvalue); + Var_Append(MAKEFLAGS, "-I", VAR_GLOBAL); + Var_Append(MAKEFLAGS, argvalue, VAR_GLOBAL); + break; + case 'J': + if (argvalue == NULL) goto noarg; + if (sscanf(argvalue, "%d,%d", &jp_0, &jp_1) != 2) { + (void)fprintf(stderr, + "%s: internal error -- J option malformed (%s)\n", + progname, argvalue); + usage(); + } + if ((fcntl(jp_0, F_GETFD, 0) < 0) || + (fcntl(jp_1, F_GETFD, 0) < 0)) { +#if 0 + (void)fprintf(stderr, + "%s: ###### warning -- J descriptors were closed!\n", + progname); + exit(2); +#endif + jp_0 = -1; + jp_1 = -1; + compatMake = TRUE; + } else { + Var_Append(MAKEFLAGS, "-J", VAR_GLOBAL); + Var_Append(MAKEFLAGS, argvalue, VAR_GLOBAL); + jobServer = TRUE; + } + break; + case 'N': + noExecute = TRUE; + noRecursiveExecute = TRUE; + Var_Append(MAKEFLAGS, "-N", VAR_GLOBAL); + break; + case 'S': + keepgoing = FALSE; + Var_Append(MAKEFLAGS, "-S", VAR_GLOBAL); + break; + case 'T': + if (argvalue == NULL) goto noarg; + tracefile = bmake_strdup(argvalue); + Var_Append(MAKEFLAGS, "-T", VAR_GLOBAL); + Var_Append(MAKEFLAGS, argvalue, VAR_GLOBAL); + break; + case 'V': + if (argvalue == NULL) goto noarg; + printVars = TRUE; + (void)Lst_AtEnd(variables, argvalue); + Var_Append(MAKEFLAGS, "-V", VAR_GLOBAL); + Var_Append(MAKEFLAGS, argvalue, VAR_GLOBAL); + break; + case 'W': + parseWarnFatal = TRUE; + break; + case 'X': + varNoExportEnv = TRUE; + Var_Append(MAKEFLAGS, "-X", VAR_GLOBAL); + break; + case 'd': + if (argvalue == NULL) goto noarg; + /* If '-d-opts' don't pass to children */ + if (argvalue[0] == '-') + argvalue++; + else { + Var_Append(MAKEFLAGS, "-d", VAR_GLOBAL); + Var_Append(MAKEFLAGS, argvalue, VAR_GLOBAL); + } + parse_debug_options(argvalue); + break; + case 'e': + checkEnvFirst = TRUE; + Var_Append(MAKEFLAGS, "-e", VAR_GLOBAL); + break; + case 'f': + if (argvalue == NULL) goto noarg; + (void)Lst_AtEnd(makefiles, argvalue); + break; + case 'i': + ignoreErrors = TRUE; + Var_Append(MAKEFLAGS, "-i", VAR_GLOBAL); + break; + case 'j': + if (argvalue == NULL) goto noarg; + forceJobs = TRUE; + maxJobs = strtol(argvalue, &p, 0); + if (*p != '\0' || maxJobs < 1) { + (void)fprintf(stderr, "%s: illegal argument to -j -- must be positive integer!\n", + progname); + exit(1); + } + Var_Append(MAKEFLAGS, "-j", VAR_GLOBAL); + Var_Append(MAKEFLAGS, argvalue, VAR_GLOBAL); + Var_Set(".MAKE.JOBS", argvalue, VAR_GLOBAL, 0); + maxJobTokens = maxJobs; + break; + case 'k': + keepgoing = TRUE; + Var_Append(MAKEFLAGS, "-k", VAR_GLOBAL); + break; + case 'm': + if (argvalue == NULL) goto noarg; + /* look for magic parent directory search string */ + if (strncmp(".../", argvalue, 4) == 0) { + if (!Dir_FindHereOrAbove(curdir, argvalue+4, + found_path, sizeof(found_path))) + break; /* nothing doing */ + (void)Dir_AddDir(sysIncPath, found_path); + } else { + (void)Dir_AddDir(sysIncPath, argvalue); + } + Var_Append(MAKEFLAGS, "-m", VAR_GLOBAL); + Var_Append(MAKEFLAGS, argvalue, VAR_GLOBAL); + break; + case 'n': + noExecute = TRUE; + Var_Append(MAKEFLAGS, "-n", VAR_GLOBAL); + break; + case 'q': + queryFlag = TRUE; + /* Kind of nonsensical, wot? */ + Var_Append(MAKEFLAGS, "-q", VAR_GLOBAL); + break; + case 'r': + noBuiltins = TRUE; + Var_Append(MAKEFLAGS, "-r", VAR_GLOBAL); + break; + case 's': + beSilent = TRUE; + Var_Append(MAKEFLAGS, "-s", VAR_GLOBAL); + break; + case 't': + touchFlag = TRUE; + Var_Append(MAKEFLAGS, "-t", VAR_GLOBAL); + break; + case '-': + dashDash = TRUE; + break; + default: + case '?': +#ifndef MAKE_NATIVE + fprintf(stderr, "getopt(%s) -> %d (%c)\n", + OPTFLAGS, c, c); +#endif + usage(); + } + argv += arginc; + argc -= arginc; + } + + oldVars = TRUE; + + /* + * See if the rest of the arguments are variable assignments and + * perform them if so. Else take them to be targets and stuff them + * on the end of the "create" list. + */ + for (; argc > 1; ++argv, --argc) + if (Parse_IsVar(argv[1])) { + Parse_DoVar(argv[1], VAR_CMD); + } else { + if (!*argv[1]) + Punt("illegal (null) argument."); + if (*argv[1] == '-' && !dashDash) + goto rearg; + (void)Lst_AtEnd(create, bmake_strdup(argv[1])); + } + + return; +noarg: + (void)fprintf(stderr, "%s: option requires an argument -- %c\n", + progname, c); + usage(); +} + +/*- + * 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. + * + * Input: + * line Line to fracture + * + * Results: + * None + * + * Side Effects: + * Only those that come from the various arguments. + */ +void +Main_ParseArgLine(const char *line) +{ + char **argv; /* Manufactured argument vector */ + int argc; /* Number of arguments in argv */ + char *args; /* Space used by the args */ + char *buf, *p1; + char *argv0 = Var_Value(".MAKE", VAR_GLOBAL, &p1); + size_t len; + + if (line == NULL) + return; + for (; *line == ' '; ++line) + continue; + if (!*line) + return; + +#ifndef POSIX + { + /* + * $MAKE may simply be naming the make(1) binary + */ + char *cp; + + if (!(cp = strrchr(line, '/'))) + cp = line; + if ((cp = strstr(cp, "make")) && + strcmp(cp, "make") == 0) + return; + } +#endif + buf = bmake_malloc(len = strlen(line) + strlen(argv0) + 2); + (void)snprintf(buf, len, "%s %s", argv0, line); + if (p1) + free(p1); + + argv = brk_string(buf, &argc, TRUE, &args); + if (argv == NULL) { + Error("Unterminated quoted string [%s]", buf); + free(buf); + return; + } + free(buf); + MainParseArgs(argc, argv); + + free(args); + free(argv); +} + +Boolean +Main_SetObjdir(const char *path) +{ + struct stat sb; + char *p = NULL; + char buf[MAXPATHLEN + 1]; + Boolean rc = FALSE; + + /* expand variable substitutions */ + if (strchr(path, '$') != 0) { + snprintf(buf, MAXPATHLEN, "%s", path); + path = p = Var_Subst(NULL, buf, VAR_GLOBAL, 0); + } + + if (path[0] != '/') { + snprintf(buf, MAXPATHLEN, "%s/%s", curdir, path); + path = buf; + } + + /* look for the directory and try to chdir there */ + if (stat(path, &sb) == 0 && S_ISDIR(sb.st_mode)) { + if (chdir(path)) { + (void)fprintf(stderr, "make warning: %s: %s.\n", + path, strerror(errno)); + } else { + strncpy(objdir, path, MAXPATHLEN); + Var_Set(".OBJDIR", objdir, VAR_GLOBAL, 0); + setenv("PWD", objdir, 1); + Dir_InitDot(); + rc = TRUE; + } + } + + if (p) + free(p); + return rc; +} + +/*- + * ReadAllMakefiles -- + * wrapper around ReadMakefile() to read all. + * + * Results: + * TRUE if ok, FALSE on error + */ +static int +ReadAllMakefiles(const void *p, const void *q) +{ + return (ReadMakefile(p, q) == 0); +} + +int +str2Lst_Append(Lst lp, char *str, const char *sep) +{ + char *cp; + int n; + + if (!sep) + sep = " \t"; + + for (n = 0, cp = strtok(str, sep); cp; cp = strtok(NULL, sep)) { + (void)Lst_AtEnd(lp, cp); + n++; + } + return (n); +} + +#ifdef SIGINFO +/*ARGSUSED*/ +static void +siginfo(int signo MAKE_ATTR_UNUSED) +{ + char dir[MAXPATHLEN]; + char str[2 * MAXPATHLEN]; + int len; + if (getcwd(dir, sizeof(dir)) == NULL) + return; + len = snprintf(str, sizeof(str), "%s: Working in: %s\n", progname, dir); + if (len > 0) + (void)write(STDERR_FILENO, str, (size_t)len); +} +#endif + +/* + * Allow makefiles some control over the mode we run in. + */ +void +MakeMode(const char *mode) +{ + char *mp = NULL; + + if (!mode) + mode = mp = Var_Subst(NULL, "${" MAKE_MODE ":tl}", VAR_GLOBAL, 0); + + if (mode && *mode) { + if (strstr(mode, "compat")) { + compatMake = TRUE; + forceJobs = FALSE; + } +#if USE_META + if (strstr(mode, "meta")) + meta_mode_init(mode); +#endif + } + if (mp) + free(mp); +} + +/*- + * 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, *pwd; + 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) { +#ifndef MACHINE_ARCH +#ifdef MAKE_MACHINE_ARCH + machine_arch = MAKE_MACHINE_ARCH; +#else + machine_arch = "unknown"; +#endif +#else + machine_arch = MACHINE_ARCH; +#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 = 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); + + /* + * Set some other useful macros + */ + { + char tmp[64]; + const char *ep; + + if (!(ep = getenv(MAKE_LEVEL))) { +#ifdef MAKE_LEVEL_SAFE + if (!(ep = getenv(MAKE_LEVEL_SAFE))) +#endif + ep = "0"; + } + Var_Set(MAKE_LEVEL, ep, 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); + } + Job_SetPrefix(); + +#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 + Main_ParseArgLine(getenv("MAKEFLAGS")); +#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); + + /* + * 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 $PWD) + * or via subdir.mk in which case its likely a shell which does + * not provide it. + * So, to stop it breaking this case only, we ignore PWD if + * MAKEOBJDIRPREFIX is set or MAKEOBJDIR contains a transform. + */ +#ifndef NO_PWD_OVERRIDE + if (!ignorePWD && + (pwd = getenv("PWD")) != NULL && + getenv("MAKEOBJDIRPREFIX") == NULL) { + const char *makeobjdir = getenv("MAKEOBJDIR"); + + if (makeobjdir == NULL || !strchr(makeobjdir, '$')) { + if (stat(pwd, &sb) == 0 && sa.st_ino == sb.st_ino && + sa.st_dev == sb.st_dev) + (void)strncpy(curdir, pwd, MAXPATHLEN); + } + } +#endif + 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 = 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); + } + } + + /* + * 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 = 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, "${" MAKEFILE_PREFERENCE "}", + VAR_CMD, 0); + if (p1) { + (void)str2Lst_Append(makefiles, p1, NULL); + (void)Lst_Find(makefiles, NULL, ReadMakefile); + free(p1); + } + } + + /* In particular suppress .depend for '-r -V .OBJDIR -f /dev/null' */ + if (!noBuiltins || !printVars) { + makeDependfile = Var_Subst(NULL, "${.MAKE.DEPENDFILE:T}", + VAR_CMD, 0); + doing_depend = TRUE; + (void)ReadMakefile(makeDependfile, NULL); + doing_depend = FALSE; + } + + MakeMode(NULL); + + Var_Append("MFLAGS", Var_Value(MAKEFLAGS, VAR_GLOBAL, &p1), VAR_GLOBAL); + if (p1) + free(p1); + + 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[] = "${VPATH}"; + + vpath = Var_Subst(NULL, VPATH, VAR_CMD, FALSE); + path = vpath; + do { + /* skip to end of directory */ + for (cp = path; *cp != ':' && *cp != '\0'; cp++) + continue; + /* Save terminator character so know when to stop */ + savec = *cp; + *cp = '\0'; + /* Add directory to search path */ + (void)Dir_AddDir(dirSearchPath, path); + *cp = savec; + path = cp + 1; + } while (savec == ':'); + free(vpath); + } + + /* + * Now that all search paths have been read for suffixes et al, it's + * time to add the default search path to their lists... + */ + Suff_DoPaths(); + + /* + * Propagate attributes through :: dependency lists. + */ + Targ_Propagate(); + + /* print the initial graph, if the user requested it */ + if (DEBUG(GRAPH1)) + Targ_PrintGraph(1); + + /* print the values of any variables requested by the user */ + if (printVars) { + LstNode ln; + Boolean expandVars; + + if (debugVflag) + expandVars = FALSE; + else + expandVars = getBoolean(".MAKE.EXPAND_VARIABLES", FALSE); + for (ln = Lst_First(variables); ln != NULL; + ln = Lst_Succ(ln)) { + char *var = (char *)Lst_Datum(ln); + char *value; + + if (strchr(var, '$')) { + value = p1 = Var_Subst(NULL, var, VAR_GLOBAL, 0); + } 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, 0); + } else { + value = Var_Value(var, VAR_GLOBAL, &p1); + } + printf("%s\n", value ? value : ""); + if (p1) + 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); + + Suff_End(); + Targ_End(); + Arch_End(); + Var_End(); + Parse_End(); + Dir_End(); + Job_End(); + Trace_End(); + + return outOfDate ? 1 : 0; +} + +/*- + * ReadMakefile -- + * Open and parse the given makefile. + * + * Results: + * 0 if ok. -1 if couldn't open file. + * + * Side Effects: + * lots + */ +static int +ReadMakefile(const void *p, const void *q MAKE_ATTR_UNUSED) +{ + const char *fname = p; /* makefile to read */ + int fd; + size_t len = MAXPATHLEN; + char *name, *path = bmake_malloc(len); + + if (!strcmp(fname, "-")) { + Parse_File(NULL /*stdin*/, -1); + Var_Set("MAKEFILE", "", VAR_GLOBAL, 0); + } else { + /* 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 = bmake_realloc(path, len = 2 * plen); + + (void)snprintf(path, len, "%s/%s", curdir, fname); + fd = open(path, O_RDONLY); + if (fd != -1) { + fname = path; + goto found; + } + + /* If curdir failed, try objdir (ala .depend) */ + plen = strlen(objdir) + strlen(fname) + 2; + if (len < plen) + path = bmake_realloc(path, len = 2 * plen); + (void)snprintf(path, len, "%s/%s", objdir, fname); + fd = open(path, O_RDONLY); + if (fd != -1) { + fname = path; + goto found; + } + } else { + fd = open(fname, O_RDONLY); + if (fd != -1) + 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 || (fd = open(name, O_RDONLY)) == -1) { + if (name) + free(name); + free(path); + return(-1); + } + 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 (!doing_depend) + Var_Set("MAKEFILE", fname, VAR_GLOBAL, 0); + Parse_File(fname, fd); + } + free(path); + return(0); +} + + + +/*- + * Cmd_Exec -- + * Execute the command in cmd, and return the output of that command + * in a string. + * + * Results: + * A string containing the output of the command, or the empty string + * If errnum is not NULL, it contains the reason for the command failure + * + * Side Effects: + * The string must be freed by the caller. + */ +char * +Cmd_Exec(const char *cmd, const char **errnum) +{ + const char *args[4]; /* Args for invoking the shell */ + int fds[2]; /* Pipe streams */ + int cpid; /* Child PID */ + int pid; /* PID from wait() */ + char *res; /* result */ + WAIT_T status; /* command exit status */ + Buffer buf; /* buffer to store the result */ + char *cp; + int cc; + + + *errnum = NULL; + + if (!shellName) + Shell_Init(); + /* + * Set up arguments for shell + */ + args[0] = shellName; + args[1] = "-c"; + args[2] = cmd; + args[3] = NULL; + + /* + * Open a pipe for fetching its output + */ + if (pipe(fds) == -1) { + *errnum = "Couldn't create pipe for \"%s\""; + goto bad; + } + + /* + * Fork + */ + switch (cpid = vFork()) { + case 0: + /* + * Close input side of pipe + */ + (void)close(fds[0]); + + /* + * Duplicate the output stream to the shell's output, then + * shut the extra thing down. Note we don't fetch the error + * stream...why not? Why? + */ + (void)dup2(fds[1], 1); + (void)close(fds[1]); + + Var_ExportVars(); + + (void)execv(shellPath, UNCONST(args)); + _exit(1); + /*NOTREACHED*/ + + case -1: + *errnum = "Couldn't exec \"%s\""; + goto bad; + + default: + /* + * No need for the writing half + */ + (void)close(fds[1]); + + Buf_Init(&buf, 0); + + do { + char result[BUFSIZ]; + cc = read(fds[0], result, sizeof(result)); + if (cc > 0) + Buf_AddBytes(&buf, cc, result); + } + while (cc > 0 || (cc == -1 && errno == EINTR)); + + /* + * Close the input side of the pipe. + */ + (void)close(fds[0]); + + /* + * Wait for the process to exit. + */ + while(((pid = waitpid(cpid, &status, 0)) != cpid) && (pid >= 0)) { + JobReapChild(pid, status, FALSE); + continue; + } + cc = Buf_Size(&buf); + res = Buf_Destroy(&buf, FALSE); + + if (cc == 0) + *errnum = "Couldn't read shell's output for \"%s\""; + + if (WIFSIGNALED(status)) + *errnum = "\"%s\" exited on a signal"; + else if (WEXITSTATUS(status) != 0) + *errnum = "\"%s\" returned non-zero status"; + + /* + * Null-terminate the result, convert newlines to spaces and + * install it in the variable. + */ + res[cc] = '\0'; + cp = &res[cc]; + + if (cc > 0 && *--cp == '\n') { + /* + * A final newline is just stripped + */ + *cp-- = '\0'; + } + while (cp >= res) { + if (*cp == '\n') { + *cp = ' '; + } + cp--; + } + break; + } + return res; +bad: + res = bmake_malloc(1); + *res = '\0'; + return res; +} + +/*- + * Error -- + * Print an error message given its format. + * + * Results: + * None. + * + * Side Effects: + * The message is printed. + */ +/* VARARGS */ +void +Error(const char *fmt, ...) +{ + va_list ap; + FILE *err_file; + + err_file = debug_file; + if (err_file == stdout) + err_file = stderr; + (void)fflush(stdout); + for (;;) { + va_start(ap, fmt); + fprintf(err_file, "%s: ", progname); + (void)vfprintf(err_file, fmt, ap); + va_end(ap); + (void)fprintf(err_file, "\n"); + (void)fflush(err_file); + if (err_file == stderr) + break; + err_file = stderr; + } +} + +/*- + * Fatal -- + * Produce a Fatal error message. If jobs are running, waits for them + * to finish. + * + * Results: + * None + * + * Side Effects: + * The program exits + */ +/* VARARGS */ +void +Fatal(const char *fmt, ...) +{ + va_list ap; + + va_start(ap, fmt); + if (jobsRunning) + Job_Wait(); + + (void)fflush(stdout); + (void)vfprintf(stderr, fmt, ap); + va_end(ap); + (void)fprintf(stderr, "\n"); + (void)fflush(stderr); + + PrintOnError(NULL, NULL); + + if (DEBUG(GRAPH2) || DEBUG(GRAPH3)) + Targ_PrintGraph(2); + Trace_Log(MAKEERROR, 0); + exit(2); /* Not 1 so -q can distinguish error */ +} + +/* + * Punt -- + * Major exception once jobs are being created. Kills all jobs, prints + * a message and exits. + * + * Results: + * None + * + * Side Effects: + * All children are killed indiscriminately and the program Lib_Exits + */ +/* VARARGS */ +void +Punt(const char *fmt, ...) +{ + va_list ap; + + va_start(ap, fmt); + (void)fflush(stdout); + (void)fprintf(stderr, "%s: ", progname); + (void)vfprintf(stderr, fmt, ap); + va_end(ap); + (void)fprintf(stderr, "\n"); + (void)fflush(stderr); + + PrintOnError(NULL, NULL); + + DieHorribly(); +} + +/*- + * DieHorribly -- + * Exit without giving a message. + * + * Results: + * None + * + * Side Effects: + * A big one... + */ +void +DieHorribly(void) +{ + if (jobsRunning) + Job_AbortAll(); + if (DEBUG(GRAPH2)) + Targ_PrintGraph(2); + Trace_Log(MAKEERROR, 0); + exit(2); /* Not 1, so -q can distinguish error */ +} + +/* + * Finish -- + * Called when aborting due to errors in child shell to signal + * abnormal exit. + * + * Results: + * None + * + * Side Effects: + * The program exits + */ +void +Finish(int errors) + /* number of errors encountered in Make_Make */ +{ + Fatal("%d error%s", errors, errors == 1 ? "" : "s"); +} + +/* + * eunlink -- + * Remove a file carefully, avoiding directories. + */ +int +eunlink(const char *file) +{ + struct stat st; + + if (lstat(file, &st) == -1) + return -1; + + if (S_ISDIR(st.st_mode)) { + errno = EISDIR; + return -1; + } + return unlink(file); +} + +/* + * execError -- + * Print why exec failed, avoiding stdio. + */ +void +execError(const char *af, const char *av) +{ +#ifdef USE_IOVEC + int i = 0; + struct iovec iov[8]; +#define IOADD(s) \ + (void)(iov[i].iov_base = UNCONST(s), \ + iov[i].iov_len = strlen(iov[i].iov_base), \ + i++) +#else +#define IOADD(s) (void)write(2, s, strlen(s)) +#endif + + IOADD(progname); + IOADD(": "); + IOADD(af); + IOADD("("); + IOADD(av); + IOADD(") failed ("); + IOADD(strerror(errno)); + IOADD(")\n"); + +#ifdef USE_IOVEC + while (writev(2, iov, 8) == -1 && errno == EAGAIN) + continue; +#endif +} + +/* + * usage -- + * exit with usage message + */ +static void +usage(void) +{ + (void)fprintf(stderr, +"usage: %s [-BeikNnqrstWX] \n\ + [-C directory] [-D variable] [-d flags] [-f makefile]\n\ + [-I directory] [-J private] [-j max_jobs] [-m directory] [-T file]\n\ + [-V variable] [variable=value] [target ...]\n", progname); + exit(2); +} + + +int +PrintAddr(void *a, void *b) +{ + printf("%lx ", (unsigned long) a); + return b ? 0 : 0; +} + + + +void +PrintOnError(GNode *gn, const char *s) +{ + static GNode *en = NULL; + char tmp[64]; + char *cp; + + if (s) + printf("%s", s); + + printf("\n%s: stopped in %s\n", progname, curdir); + + if (en) + return; /* we've been here! */ + if (gn) { + /* + * We can print this even if there is no .ERROR target. + */ + Var_Set(".ERROR_TARGET", gn->name, VAR_GLOBAL, 0); + } + strncpy(tmp, "${MAKE_PRINT_VAR_ON_ERROR:@v@$v='${$v}'\n@}", + sizeof(tmp) - 1); + cp = Var_Subst(NULL, tmp, VAR_GLOBAL, 0); + if (cp) { + if (*cp) + printf("%s", cp); + free(cp); + } + /* + * Finally, see if there is a .ERROR target, and run it if so. + */ + en = Targ_FindNode(".ERROR", TARG_NOCREATE); + if (en) { + en->type |= OP_SPECIAL; + Compat_Make(en, en); + } +} + +void +Main_ExportMAKEFLAGS(Boolean first) +{ + static int once = 1; + char tmp[64]; + char *s; + + if (once != first) + return; + once = 0; + + strncpy(tmp, "${.MAKEFLAGS} ${.MAKEOVERRIDES:O:u:@v@$v=${$v:Q}@}", + sizeof(tmp)); + s = Var_Subst(NULL, tmp, VAR_CMD, 0); + if (s && *s) { +#ifdef POSIX + setenv("MAKEFLAGS", s, 1); +#else + setenv("MAKE", s, 1); +#endif + } +} + +char * +getTmpdir(void) +{ + static char *tmpdir = NULL; + + if (!tmpdir) { + struct stat st; + + /* + * Honor $TMPDIR but only if it is valid. + * Ensure it ends with /. + */ + tmpdir = Var_Subst(NULL, "${TMPDIR:tA:U" _PATH_TMP "}/", VAR_GLOBAL, 0); + if (stat(tmpdir, &st) < 0 || !S_ISDIR(st.st_mode)) { + free(tmpdir); + tmpdir = bmake_strdup(_PATH_TMP); + } + } + return tmpdir; +} + +/* + * Create and open a temp file using "pattern". + * If "fnamep" is provided set it to a copy of the filename created. + * Otherwise unlink the file once open. + */ +int +mkTempFile(const char *pattern, char **fnamep) +{ + static char *tmpdir = NULL; + char tfile[MAXPATHLEN]; + int fd; + + if (!pattern) + pattern = TMPPAT; + if (!tmpdir) + tmpdir = getTmpdir(); + if (pattern[0] == '/') { + snprintf(tfile, sizeof(tfile), "%s", pattern); + } else { + snprintf(tfile, sizeof(tfile), "%s%s", tmpdir, pattern); + } + if ((fd = mkstemp(tfile)) < 0) + Punt("Could not create temporary file %s: %s", tfile, strerror(errno)); + if (fnamep) { + *fnamep = bmake_strdup(tfile); + } else { + unlink(tfile); /* we just want the descriptor */ + } + return fd; +} + + +/* + * Return a Boolean based on setting of a knob. + * + * If the knob is not set, the supplied default is the return value. + * If set, anything that looks or smells like "No", "False", "Off", "0" etc, + * is FALSE, otherwise TRUE. + */ +Boolean +getBoolean(const char *name, Boolean bf) +{ + char tmp[64]; + char *cp; + + if (snprintf(tmp, sizeof(tmp), "${%s:tl}", name) < (int)(sizeof(tmp))) { + cp = Var_Subst(NULL, tmp, VAR_GLOBAL, 0); + + if (cp) { + switch(*cp) { + case '\0': /* not set - the default wins */ + break; + case '0': + case 'f': + case 'n': + bf = FALSE; + break; + case 'o': + switch (cp[1]) { + case 'f': + bf = FALSE; + break; + default: + bf = TRUE; + break; + } + break; + default: + bf = TRUE; + break; + } + free(cp); + } + } + return (bf); +} |