940c638f93
set the current shell to DEFSHELL. Put all these specifications into a list. Add user specified new shells to this list. If the user just selects one of the already know shells just pick the right one off the list. This let's one do something like: # Full specification of the user's shell. This also selects the shell. .SHELL: name=myshell path=/somewhere/foo echo=loud ... FOO != bar # use myshell here .SHELL: name=sh BAR != baz # use /bin/sh here .SHELL: name=myshell # no need for full spec here. # continue to use the user's special shell.
1090 lines
27 KiB
C
1090 lines
27 KiB
C
/*-
|
|
* 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.
|
|
*/
|
|
|
|
#ifndef MACHINE
|
|
#include <sys/utsname.h>
|
|
#endif
|
|
#include <sys/param.h>
|
|
#include <sys/stat.h>
|
|
#include <sys/sysctl.h>
|
|
#include <sys/time.h>
|
|
#include <sys/queue.h>
|
|
#include <sys/resource.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 "job.h"
|
|
#include "make.h"
|
|
#include "parse.h"
|
|
#include "pathnames.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);
|
|
|
|
/* 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 */
|
|
|
|
/* (-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 beSilent; /* -s flag */
|
|
Boolean beVerbose; /* -v flag */
|
|
Boolean compatMake; /* -B argument */
|
|
Boolean debug; /* -d flag */
|
|
Boolean ignoreErrors; /* -i flag */
|
|
int jobLimit; /* -j argument */
|
|
Boolean jobsRunning; /* TRUE if the jobs might be running */
|
|
Boolean keepgoing; /* -k flag */
|
|
Boolean noExecute; /* -n 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 */
|
|
|
|
/**
|
|
* Exit with usage message.
|
|
*/
|
|
static void
|
|
usage(void)
|
|
{
|
|
fprintf(stderr,
|
|
"usage: make [-BPSXeiknqrstv] [-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; /* makefile to read */
|
|
FILE *stream;
|
|
char *name, path[MAXPATHLEN];
|
|
char *MAKEFILE;
|
|
int setMAKEFILE;
|
|
|
|
/* XXX - remove this once constification is done */
|
|
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 relateive
|
|
* 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 inconsistant with historical
|
|
* XXX behavior. However, I can't pentrate 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")))
|
|
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);
|
|
fclose(stream);
|
|
}
|
|
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;
|
|
|
|
rearg:
|
|
optind = 1; /* since we're called more than once */
|
|
optreset = 1;
|
|
#define OPTFLAGS "ABC:D:E:I:PSV:Xd:ef:ij:km:nqrstvx:"
|
|
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 'C':
|
|
if (chdir(optarg) == -1)
|
|
err(1, "chdir %s", optarg);
|
|
break;
|
|
case 'D':
|
|
Var_SetGlobal(optarg, "1");
|
|
MFLAGS_append("-D", optarg);
|
|
break;
|
|
case 'I':
|
|
Parse_AddIncludeDir(optarg);
|
|
MFLAGS_append("-I", optarg);
|
|
break;
|
|
case 'V':
|
|
Lst_AtEnd(&variables, estrdup(optarg));
|
|
MFLAGS_append("-V", optarg);
|
|
break;
|
|
case 'X':
|
|
expandVars = FALSE;
|
|
break;
|
|
case 'B':
|
|
compatMake = TRUE;
|
|
MFLAGS_append("-B", NULL);
|
|
unsetenv("MAKE_JOBS_FIFO");
|
|
break;
|
|
case 'P':
|
|
usePipes = FALSE;
|
|
MFLAGS_append("-P", NULL);
|
|
break;
|
|
case 'S':
|
|
keepgoing = FALSE;
|
|
MFLAGS_append("-S", NULL);
|
|
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':
|
|
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':
|
|
Path_AddDir(&sysIncPath, optarg);
|
|
MFLAGS_append("-m", optarg);
|
|
break;
|
|
case 'n':
|
|
noExecute = TRUE;
|
|
MFLAGS_append("-n", 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':
|
|
beSilent = TRUE;
|
|
MFLAGS_append("-s", NULL);
|
|
break;
|
|
case 't':
|
|
touchFlag = TRUE;
|
|
MFLAGS_append("-t", NULL);
|
|
break;
|
|
case 'v':
|
|
beVerbose = TRUE;
|
|
MFLAGS_append("-v", NULL);
|
|
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);
|
|
|
|
Var_Append(".MAKEFLAGS", ptr, VAR_GLOBAL);
|
|
Parse_DoVar(*argv, VAR_CMD);
|
|
free(ptr);
|
|
|
|
} 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 enviornment 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) {
|
|
errc(2, EAGAIN, "Invalid value for recursion level (%d).",
|
|
level);
|
|
} else if (level > MKLVL_MAXVAL) {
|
|
errc(2, EAGAIN, "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
|
|
* 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 */
|
|
char *p, *p1;
|
|
const char *pathp;
|
|
const char *path;
|
|
char mdpath[MAXPATHLEN];
|
|
char obpath[MAXPATHLEN];
|
|
char cdpath[MAXPATHLEN];
|
|
char *cp = NULL, *start;
|
|
|
|
/*
|
|
* 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 */
|
|
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
|
|
|
|
/*
|
|
* PC-98 kernel sets the `i386' string to the utsname.machine and
|
|
* it cannot be distinguished from IBM-PC by uname(3). Therefore,
|
|
* we check machine.ispc98 and adjust the machine variable before
|
|
* using usname(3) below.
|
|
* NOTE: machdep.ispc98 was defined on 1998/8/31. At that time,
|
|
* __FreeBSD_version was defined as 300003. So, this check can
|
|
* safely be done with any kernel with version > 300003.
|
|
*/
|
|
if ((machine = getenv("MACHINE")) == NULL) {
|
|
int ispc98;
|
|
size_t len;
|
|
|
|
len = sizeof(ispc98);
|
|
if (!sysctlbyname("machdep.ispc98", &ispc98, &len, NULL, 0)) {
|
|
if (ispc98)
|
|
machine = "pc98";
|
|
}
|
|
}
|
|
|
|
/*
|
|
* 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 while MACHINE is decided at run-time,
|
|
* MACHINE_ARCH is always known at compile time.
|
|
*/
|
|
if (machine == NULL) {
|
|
#ifdef MACHINE
|
|
machine = MACHINE;
|
|
#else
|
|
static struct utsname utsname;
|
|
|
|
if (uname(&utsname) == -1)
|
|
err(2, "uname");
|
|
machine = utsname.machine;
|
|
#endif
|
|
}
|
|
|
|
if ((machine_arch = getenv("MACHINE_ARCH")) == NULL) {
|
|
#ifdef MACHINE_ARCH
|
|
machine_arch = MACHINE_ARCH;
|
|
#else
|
|
machine_arch = "unknown";
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* Set machine_cpu to the minumum 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 = "i386";
|
|
else if (!strcmp(machine_arch, "alpha"))
|
|
machine_cpu = "ev4";
|
|
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
|
|
|
|
/*
|
|
* First snag things out of the MAKEFLAGS environment
|
|
* variable. Then parse the command line arguments.
|
|
*/
|
|
Main_ParseArgLine(getenv("MAKEFLAGS"), 1);
|
|
|
|
MainParseArgs(argc, argv);
|
|
|
|
/*
|
|
* Find where we are...
|
|
*/
|
|
if (getcwd(curdir, MAXPATHLEN) == NULL)
|
|
err(2, NULL);
|
|
|
|
{
|
|
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 apropriately. 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 syspath[] = PATH_DEFSYSPATH;
|
|
|
|
for (start = syspath; *start != '\0'; start = cp) {
|
|
for (cp = start; *cp != '\0' && *cp != ':'; cp++)
|
|
continue;
|
|
if (*cp == '\0') {
|
|
Path_AddDir(&sysIncPath, start);
|
|
} else {
|
|
*cp++ = '\0';
|
|
Path_AddDir(&sysIncPath, start);
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* 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 (!ReadMakefile(Lst_Datum(ln)))
|
|
break;
|
|
}
|
|
if (ln != NULL)
|
|
Fatal("make: cannot open %s.", (char *)Lst_Datum(ln));
|
|
} else if (!ReadMakefile("BSDmakefile"))
|
|
if (!ReadMakefile("makefile"))
|
|
ReadMakefile("Makefile");
|
|
|
|
ReadMakefile(".depend");
|
|
|
|
/* Install all the flags into the MAKE envariable. */
|
|
if (((p = Var_Value(".MAKEFLAGS", VAR_GLOBAL, &p1)) != NULL) && *p)
|
|
setenv("MAKEFLAGS", p, 1);
|
|
free(p1);
|
|
|
|
/*
|
|
* 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)) {
|
|
/*
|
|
* 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 (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(&create, free);
|
|
|
|
/* print the graph now it's been processed if the user requested it */
|
|
if (DEBUG(GRAPH2))
|
|
Targ_PrintGraph(2);
|
|
|
|
if (queryFlag && outOfDate)
|
|
return (1);
|
|
else
|
|
return (0);
|
|
}
|
|
|