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/* Argument parsing and main program of GNU Make. |
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Copyright (C) 1988, 1989, 1990, 1991, 1994, 1995, 1996, 1997, 1998, 1999, |
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2002, 2003 Free Software Foundation, Inc. |
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This file is part of GNU Make. |
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|
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GNU Make is free software; you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation; either version 2, or (at your option) |
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any later version. |
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|
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GNU Make is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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|
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You should have received a copy of the GNU General Public License |
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along with GNU Make; see the file COPYING. If not, write to |
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the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, |
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MA 02111-1307, USA. */ |
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|
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#include "make.h" |
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#include "dep.h" |
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#include "filedef.h" |
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#include "variable.h" |
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#include "job.h" |
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#include "commands.h" |
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#include "rule.h" |
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#include "debug.h" |
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#include "getopt.h" |
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|
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#include <assert.h> |
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#ifdef _AMIGA |
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# include <dos/dos.h> |
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# include <proto/dos.h> |
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#endif |
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#ifdef WINDOWS32 |
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#include <windows.h> |
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#include "pathstuff.h" |
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#endif |
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#ifdef __EMX__ |
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# include <sys/types.h> |
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# include <sys/wait.h> |
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#endif |
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#ifdef HAVE_FCNTL_H |
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# include <fcntl.h> |
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#endif |
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|
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#ifdef _AMIGA |
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int __stack = 20000; /* Make sure we have 20K of stack space */ |
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#endif |
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|
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extern void init_dir PARAMS ((void)); |
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extern void remote_setup PARAMS ((void)); |
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extern void remote_cleanup PARAMS ((void)); |
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extern RETSIGTYPE fatal_error_signal PARAMS ((int sig)); |
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|
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extern void print_variable_data_base PARAMS ((void)); |
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extern void print_dir_data_base PARAMS ((void)); |
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extern void print_rule_data_base PARAMS ((void)); |
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extern void print_file_data_base PARAMS ((void)); |
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extern void print_vpath_data_base PARAMS ((void)); |
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|
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#if defined HAVE_WAITPID || defined HAVE_WAIT3 |
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# define HAVE_WAIT_NOHANG |
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#endif |
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|
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#ifndef HAVE_UNISTD_H |
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extern int chdir (); |
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#endif |
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#ifndef STDC_HEADERS |
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# ifndef sun /* Sun has an incorrect decl in a header. */ |
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extern void exit PARAMS ((int)) __attribute__ ((noreturn)); |
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# endif |
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extern double atof (); |
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#endif |
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|
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static void print_data_base PARAMS ((void)); |
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static void print_version PARAMS ((void)); |
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static void decode_switches PARAMS ((int argc, char **argv, int env)); |
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static void decode_env_switches PARAMS ((char *envar, unsigned int len)); |
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static void define_makeflags PARAMS ((int all, int makefile)); |
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static char *quote_for_env PARAMS ((char *out, char *in)); |
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static void initialize_global_hash_tables PARAMS ((void)); |
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|
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|
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/* The structure that describes an accepted command switch. */ |
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|
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struct command_switch |
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{ |
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int c; /* The switch character. */ |
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|
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enum /* Type of the value. */ |
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{ |
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flag, /* Turn int flag on. */ |
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flag_off, /* Turn int flag off. */ |
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string, /* One string per switch. */ |
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positive_int, /* A positive integer. */ |
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floating, /* A floating-point number (double). */ |
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ignore /* Ignored. */ |
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} type; |
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|
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char *value_ptr; /* Pointer to the value-holding variable. */ |
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|
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unsigned int env:1; /* Can come from MAKEFLAGS. */ |
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unsigned int toenv:1; /* Should be put in MAKEFLAGS. */ |
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unsigned int no_makefile:1; /* Don't propagate when remaking makefiles. */ |
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|
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char *noarg_value; /* Pointer to value used if no argument is given. */ |
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char *default_value;/* Pointer to default value. */ |
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|
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char *long_name; /* Long option name. */ |
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}; |
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|
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/* True if C is a switch value that corresponds to a short option. */ |
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|
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#define short_option(c) ((c) <= CHAR_MAX) |
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|
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/* The structure used to hold the list of strings given |
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in command switches of a type that takes string arguments. */ |
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|
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struct stringlist |
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{ |
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char **list; /* Nil-terminated list of strings. */ |
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unsigned int idx; /* Index into above. */ |
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unsigned int max; /* Number of pointers allocated. */ |
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}; |
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|
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|
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/* The recognized command switches. */ |
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|
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/* Nonzero means do not print commands to be executed (-s). */ |
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|
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int silent_flag; |
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|
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/* Nonzero means just touch the files |
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that would appear to need remaking (-t) */ |
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|
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int touch_flag; |
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|
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/* Nonzero means just print what commands would need to be executed, |
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don't actually execute them (-n). */ |
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|
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int just_print_flag; |
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|
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/* Print debugging info (--debug). */ |
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|
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static struct stringlist *db_flags; |
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static int debug_flag = 0; |
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|
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int db_level = 0; |
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|
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#ifdef WINDOWS32 |
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/* Suspend make in main for a short time to allow debugger to attach */ |
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|
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int suspend_flag = 0; |
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#endif |
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|
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/* Environment variables override makefile definitions. */ |
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|
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int env_overrides = 0; |
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|
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/* Nonzero means ignore status codes returned by commands |
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executed to remake files. Just treat them all as successful (-i). */ |
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|
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int ignore_errors_flag = 0; |
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|
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/* Nonzero means don't remake anything, just print the data base |
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that results from reading the makefile (-p). */ |
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|
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int print_data_base_flag = 0; |
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|
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/* Nonzero means don't remake anything; just return a nonzero status |
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if the specified targets are not up to date (-q). */ |
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|
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int question_flag = 0; |
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|
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/* Nonzero means do not use any of the builtin rules (-r) / variables (-R). */ |
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|
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int no_builtin_rules_flag = 0; |
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int no_builtin_variables_flag = 0; |
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|
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/* Nonzero means keep going even if remaking some file fails (-k). */ |
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|
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int keep_going_flag; |
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int default_keep_going_flag = 0; |
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|
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/* Nonzero means print directory before starting and when done (-w). */ |
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|
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int print_directory_flag = 0; |
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|
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/* Nonzero means ignore print_directory_flag and never print the directory. |
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This is necessary because print_directory_flag is set implicitly. */ |
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|
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int inhibit_print_directory_flag = 0; |
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|
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/* Nonzero means print version information. */ |
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|
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int print_version_flag = 0; |
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|
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/* List of makefiles given with -f switches. */ |
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|
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static struct stringlist *makefiles = 0; |
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|
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/* Number of job slots (commands that can be run at once). */ |
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|
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unsigned int job_slots = 1; |
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unsigned int default_job_slots = 1; |
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|
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/* Value of job_slots that means no limit. */ |
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|
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static unsigned int inf_jobs = 0; |
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|
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/* File descriptors for the jobs pipe. */ |
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|
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static struct stringlist *jobserver_fds = 0; |
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|
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int job_fds[2] = { -1, -1 }; |
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int job_rfd = -1; |
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|
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/* Maximum load average at which multiple jobs will be run. |
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Negative values mean unlimited, while zero means limit to |
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zero load (which could be useful to start infinite jobs remotely |
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but one at a time locally). */ |
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#ifndef NO_FLOAT |
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double max_load_average = -1.0; |
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double default_load_average = -1.0; |
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#else |
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int max_load_average = -1; |
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int default_load_average = -1; |
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#endif |
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|
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/* List of directories given with -C switches. */ |
233 |
|
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static struct stringlist *directories = 0; |
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|
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/* List of include directories given with -I switches. */ |
237 |
|
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static struct stringlist *include_directories = 0; |
239 |
|
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/* List of files given with -o switches. */ |
241 |
|
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static struct stringlist *old_files = 0; |
243 |
|
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/* List of files given with -W switches. */ |
245 |
|
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static struct stringlist *new_files = 0; |
247 |
|
248 |
/* If nonzero, we should just print usage and exit. */ |
249 |
|
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static int print_usage_flag = 0; |
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|
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/* If nonzero, we should print a warning message |
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for each reference to an undefined variable. */ |
254 |
|
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int warn_undefined_variables_flag; |
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|
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/* If nonzero, always build all targets, regardless of whether |
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they appear out of date or not. */ |
259 |
|
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int always_make_flag = 0; |
261 |
|
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/* The usage output. We write it this way to make life easier for the |
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translators, especially those trying to translate to right-to-left |
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languages like Hebrew. */ |
265 |
|
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static const char *const usage[] = |
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{ |
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N_("Options:\n"), |
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N_("\ |
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-b, -m Ignored for compatibility.\n"), |
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N_("\ |
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-B, --always-make Unconditionally make all targets.\n"), |
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N_("\ |
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-C DIRECTORY, --directory=DIRECTORY\n\ |
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Change to DIRECTORY before doing anything.\n"), |
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N_("\ |
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-d Print lots of debugging information.\n"), |
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N_("\ |
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--debug[=FLAGS] Print various types of debugging information.\n"), |
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N_("\ |
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-e, --environment-overrides\n\ |
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Environment variables override makefiles.\n"), |
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N_("\ |
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-f FILE, --file=FILE, --makefile=FILE\n\ |
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Read FILE as a makefile.\n"), |
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N_("\ |
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-h, --help Print this message and exit.\n"), |
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N_("\ |
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-i, --ignore-errors Ignore errors from commands.\n"), |
290 |
N_("\ |
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-I DIRECTORY, --include-dir=DIRECTORY\n\ |
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Search DIRECTORY for included makefiles.\n"), |
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N_("\ |
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-j [N], --jobs[=N] Allow N jobs at once; infinite jobs with no arg.\n"), |
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N_("\ |
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-k, --keep-going Keep going when some targets can't be made.\n"), |
297 |
N_("\ |
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-l [N], --load-average[=N], --max-load[=N]\n\ |
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Don't start multiple jobs unless load is below N.\n"), |
300 |
N_("\ |
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-n, --just-print, --dry-run, --recon\n\ |
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Don't actually run any commands; just print them.\n"), |
303 |
N_("\ |
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-o FILE, --old-file=FILE, --assume-old=FILE\n\ |
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Consider FILE to be very old and don't remake it.\n"), |
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N_("\ |
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-p, --print-data-base Print make's internal database.\n"), |
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N_("\ |
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-q, --question Run no commands; exit status says if up to date.\n"), |
310 |
N_("\ |
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-r, --no-builtin-rules Disable the built-in implicit rules.\n"), |
312 |
N_("\ |
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-R, --no-builtin-variables Disable the built-in variable settings.\n"), |
314 |
N_("\ |
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-s, --silent, --quiet Don't echo commands.\n"), |
316 |
N_("\ |
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-S, --no-keep-going, --stop\n\ |
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Turns off -k.\n"), |
319 |
N_("\ |
320 |
-t, --touch Touch targets instead of remaking them.\n"), |
321 |
N_("\ |
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-v, --version Print the version number of make and exit.\n"), |
323 |
N_("\ |
324 |
-w, --print-directory Print the current directory.\n"), |
325 |
N_("\ |
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--no-print-directory Turn off -w, even if it was turned on implicitly.\n"), |
327 |
N_("\ |
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-W FILE, --what-if=FILE, --new-file=FILE, --assume-new=FILE\n\ |
329 |
Consider FILE to be infinitely new.\n"), |
330 |
N_("\ |
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--warn-undefined-variables Warn when an undefined variable is referenced.\n"), |
332 |
NULL |
333 |
}; |
334 |
|
335 |
/* The table of command switches. */ |
336 |
|
337 |
static const struct command_switch switches[] = |
338 |
{ |
339 |
{ 'b', ignore, 0, 0, 0, 0, 0, 0, 0 }, |
340 |
{ 'B', flag, (char *) &always_make_flag, 1, 1, 0, 0, 0, "always-make" }, |
341 |
{ 'C', string, (char *) &directories, 0, 0, 0, 0, 0, "directory" }, |
342 |
{ 'd', flag, (char *) &debug_flag, 1, 1, 0, 0, 0, 0 }, |
343 |
{ CHAR_MAX+1, string, (char *) &db_flags, 1, 1, 0, "basic", 0, "debug" }, |
344 |
#ifdef WINDOWS32 |
345 |
{ 'D', flag, (char *) &suspend_flag, 1, 1, 0, 0, 0, "suspend-for-debug" }, |
346 |
#endif |
347 |
{ 'e', flag, (char *) &env_overrides, 1, 1, 0, 0, 0, |
348 |
"environment-overrides", }, |
349 |
{ 'f', string, (char *) &makefiles, 0, 0, 0, 0, 0, "file" }, |
350 |
{ 'h', flag, (char *) &print_usage_flag, 0, 0, 0, 0, 0, "help" }, |
351 |
{ 'i', flag, (char *) &ignore_errors_flag, 1, 1, 0, 0, 0, |
352 |
"ignore-errors" }, |
353 |
{ 'I', string, (char *) &include_directories, 1, 1, 0, 0, 0, |
354 |
"include-dir" }, |
355 |
{ 'j', positive_int, (char *) &job_slots, 1, 1, 0, (char *) &inf_jobs, |
356 |
(char *) &default_job_slots, "jobs" }, |
357 |
{ CHAR_MAX+2, string, (char *) &jobserver_fds, 1, 1, 0, 0, 0, |
358 |
"jobserver-fds" }, |
359 |
{ 'k', flag, (char *) &keep_going_flag, 1, 1, 0, 0, |
360 |
(char *) &default_keep_going_flag, "keep-going" }, |
361 |
#ifndef NO_FLOAT |
362 |
{ 'l', floating, (char *) &max_load_average, 1, 1, 0, |
363 |
(char *) &default_load_average, (char *) &default_load_average, |
364 |
"load-average" }, |
365 |
#else |
366 |
{ 'l', positive_int, (char *) &max_load_average, 1, 1, 0, |
367 |
(char *) &default_load_average, (char *) &default_load_average, |
368 |
"load-average" }, |
369 |
#endif |
370 |
{ 'm', ignore, 0, 0, 0, 0, 0, 0, 0 }, |
371 |
{ 'n', flag, (char *) &just_print_flag, 1, 1, 1, 0, 0, "just-print" }, |
372 |
{ 'o', string, (char *) &old_files, 0, 0, 0, 0, 0, "old-file" }, |
373 |
{ 'p', flag, (char *) &print_data_base_flag, 1, 1, 0, 0, 0, |
374 |
"print-data-base" }, |
375 |
{ 'q', flag, (char *) &question_flag, 1, 1, 1, 0, 0, "question" }, |
376 |
{ 'r', flag, (char *) &no_builtin_rules_flag, 1, 1, 0, 0, 0, |
377 |
"no-builtin-rules" }, |
378 |
{ 'R', flag, (char *) &no_builtin_variables_flag, 1, 1, 0, 0, 0, |
379 |
"no-builtin-variables" }, |
380 |
{ 's', flag, (char *) &silent_flag, 1, 1, 0, 0, 0, "silent" }, |
381 |
{ 'S', flag_off, (char *) &keep_going_flag, 1, 1, 0, 0, |
382 |
(char *) &default_keep_going_flag, "no-keep-going" }, |
383 |
{ 't', flag, (char *) &touch_flag, 1, 1, 1, 0, 0, "touch" }, |
384 |
{ 'v', flag, (char *) &print_version_flag, 1, 1, 0, 0, 0, "version" }, |
385 |
{ 'w', flag, (char *) &print_directory_flag, 1, 1, 0, 0, 0, |
386 |
"print-directory" }, |
387 |
{ CHAR_MAX+3, flag, (char *) &inhibit_print_directory_flag, 1, 1, 0, 0, 0, |
388 |
"no-print-directory" }, |
389 |
{ 'W', string, (char *) &new_files, 0, 0, 0, 0, 0, "what-if" }, |
390 |
{ CHAR_MAX+4, flag, (char *) &warn_undefined_variables_flag, 1, 1, 0, 0, 0, |
391 |
"warn-undefined-variables" }, |
392 |
{ '\0', } |
393 |
}; |
394 |
|
395 |
/* Secondary long names for options. */ |
396 |
|
397 |
static struct option long_option_aliases[] = |
398 |
{ |
399 |
{ "quiet", no_argument, 0, 's' }, |
400 |
{ "stop", no_argument, 0, 'S' }, |
401 |
{ "new-file", required_argument, 0, 'W' }, |
402 |
{ "assume-new", required_argument, 0, 'W' }, |
403 |
{ "assume-old", required_argument, 0, 'o' }, |
404 |
{ "max-load", optional_argument, 0, 'l' }, |
405 |
{ "dry-run", no_argument, 0, 'n' }, |
406 |
{ "recon", no_argument, 0, 'n' }, |
407 |
{ "makefile", required_argument, 0, 'f' }, |
408 |
}; |
409 |
|
410 |
/* List of goal targets. */ |
411 |
|
412 |
static struct dep *goals, *lastgoal; |
413 |
|
414 |
/* List of variables which were defined on the command line |
415 |
(or, equivalently, in MAKEFLAGS). */ |
416 |
|
417 |
struct command_variable |
418 |
{ |
419 |
struct command_variable *next; |
420 |
struct variable *variable; |
421 |
}; |
422 |
static struct command_variable *command_variables; |
423 |
|
424 |
/* The name we were invoked with. */ |
425 |
|
426 |
char *program; |
427 |
|
428 |
/* Our current directory before processing any -C options. */ |
429 |
|
430 |
char *directory_before_chdir; |
431 |
|
432 |
/* Our current directory after processing all -C options. */ |
433 |
|
434 |
char *starting_directory; |
435 |
|
436 |
/* Value of the MAKELEVEL variable at startup (or 0). */ |
437 |
|
438 |
unsigned int makelevel; |
439 |
|
440 |
/* First file defined in the makefile whose name does not |
441 |
start with `.'. This is the default to remake if the |
442 |
command line does not specify. */ |
443 |
|
444 |
struct file *default_goal_file; |
445 |
|
446 |
/* Pointer to structure for the file .DEFAULT |
447 |
whose commands are used for any file that has none of its own. |
448 |
This is zero if the makefiles do not define .DEFAULT. */ |
449 |
|
450 |
struct file *default_file; |
451 |
|
452 |
/* Nonzero if we have seen the magic `.POSIX' target. |
453 |
This turns on pedantic compliance with POSIX.2. */ |
454 |
|
455 |
int posix_pedantic; |
456 |
|
457 |
/* Nonzero if we have seen the `.NOTPARALLEL' target. |
458 |
This turns off parallel builds for this invocation of make. */ |
459 |
|
460 |
int not_parallel; |
461 |
|
462 |
/* Nonzero if some rule detected clock skew; we keep track so (a) we only |
463 |
print one warning about it during the run, and (b) we can print a final |
464 |
warning at the end of the run. */ |
465 |
|
466 |
int clock_skew_detected; |
467 |
|
468 |
/* Mask of signals that are being caught with fatal_error_signal. */ |
469 |
|
470 |
#ifdef POSIX |
471 |
sigset_t fatal_signal_set; |
472 |
#else |
473 |
# ifdef HAVE_SIGSETMASK |
474 |
int fatal_signal_mask; |
475 |
# endif |
476 |
#endif |
477 |
|
478 |
#if !defined HAVE_BSD_SIGNAL && !defined bsd_signal |
479 |
# if !defined HAVE_SIGACTION |
480 |
# define bsd_signal signal |
481 |
# else |
482 |
typedef RETSIGTYPE (*bsd_signal_ret_t) (); |
483 |
|
484 |
static bsd_signal_ret_t |
485 |
bsd_signal (int sig, bsd_signal_ret_t func) |
486 |
{ |
487 |
struct sigaction act, oact; |
488 |
act.sa_handler = func; |
489 |
act.sa_flags = SA_RESTART; |
490 |
sigemptyset (&act.sa_mask); |
491 |
sigaddset (&act.sa_mask, sig); |
492 |
if (sigaction (sig, &act, &oact) != 0) |
493 |
return SIG_ERR; |
494 |
return oact.sa_handler; |
495 |
} |
496 |
# endif |
497 |
#endif |
498 |
|
499 |
static void |
500 |
initialize_global_hash_tables (void) |
501 |
{ |
502 |
init_hash_global_variable_set (); |
503 |
init_hash_files (); |
504 |
hash_init_directories (); |
505 |
hash_init_function_table (); |
506 |
} |
507 |
|
508 |
static struct file * |
509 |
enter_command_line_file (char *name) |
510 |
{ |
511 |
if (name[0] == '\0') |
512 |
fatal (NILF, _("empty string invalid as file name")); |
513 |
|
514 |
if (name[0] == '~') |
515 |
{ |
516 |
char *expanded = tilde_expand (name); |
517 |
if (expanded != 0) |
518 |
name = expanded; /* Memory leak; I don't care. */ |
519 |
} |
520 |
|
521 |
/* This is also done in parse_file_seq, so this is redundant |
522 |
for names read from makefiles. It is here for names passed |
523 |
on the command line. */ |
524 |
while (name[0] == '.' && name[1] == '/' && name[2] != '\0') |
525 |
{ |
526 |
name += 2; |
527 |
while (*name == '/') |
528 |
/* Skip following slashes: ".//foo" is "foo", not "/foo". */ |
529 |
++name; |
530 |
} |
531 |
|
532 |
if (*name == '\0') |
533 |
{ |
534 |
/* It was all slashes! Move back to the dot and truncate |
535 |
it after the first slash, so it becomes just "./". */ |
536 |
do |
537 |
--name; |
538 |
while (name[0] != '.'); |
539 |
name[2] = '\0'; |
540 |
} |
541 |
|
542 |
return enter_file (xstrdup (name)); |
543 |
} |
544 |
|
545 |
/* Toggle -d on receipt of SIGUSR1. */ |
546 |
|
547 |
static RETSIGTYPE |
548 |
debug_signal_handler (int sig) |
549 |
{ |
550 |
db_level = db_level ? DB_NONE : DB_BASIC; |
551 |
} |
552 |
|
553 |
static void |
554 |
decode_debug_flags (void) |
555 |
{ |
556 |
char **pp; |
557 |
|
558 |
if (debug_flag) |
559 |
db_level = DB_ALL; |
560 |
|
561 |
if (!db_flags) |
562 |
return; |
563 |
|
564 |
for (pp=db_flags->list; *pp; ++pp) |
565 |
{ |
566 |
const char *p = *pp; |
567 |
|
568 |
while (1) |
569 |
{ |
570 |
switch (tolower (p[0])) |
571 |
{ |
572 |
case 'a': |
573 |
db_level |= DB_ALL; |
574 |
break; |
575 |
case 'b': |
576 |
db_level |= DB_BASIC; |
577 |
break; |
578 |
case 'i': |
579 |
db_level |= DB_BASIC | DB_IMPLICIT; |
580 |
break; |
581 |
case 'j': |
582 |
db_level |= DB_JOBS; |
583 |
break; |
584 |
case 'm': |
585 |
db_level |= DB_BASIC | DB_MAKEFILES; |
586 |
break; |
587 |
case 'v': |
588 |
db_level |= DB_BASIC | DB_VERBOSE; |
589 |
break; |
590 |
default: |
591 |
fatal (NILF, _("unknown debug level specification `%s'"), p); |
592 |
} |
593 |
|
594 |
while (*(++p) != '\0') |
595 |
if (*p == ',' || *p == ' ') |
596 |
break; |
597 |
|
598 |
if (*p == '\0') |
599 |
break; |
600 |
|
601 |
++p; |
602 |
} |
603 |
} |
604 |
} |
605 |
|
606 |
#ifdef WINDOWS32 |
607 |
/* |
608 |
* HANDLE runtime exceptions by avoiding a requestor on the GUI. Capture |
609 |
* exception and print it to stderr instead. |
610 |
* |
611 |
* If ! DB_VERBOSE, just print a simple message and exit. |
612 |
* If DB_VERBOSE, print a more verbose message. |
613 |
* If compiled for DEBUG, let exception pass through to GUI so that |
614 |
* debuggers can attach. |
615 |
*/ |
616 |
LONG WINAPI |
617 |
handle_runtime_exceptions( struct _EXCEPTION_POINTERS *exinfo ) |
618 |
{ |
619 |
PEXCEPTION_RECORD exrec = exinfo->ExceptionRecord; |
620 |
LPSTR cmdline = GetCommandLine(); |
621 |
LPSTR prg = strtok(cmdline, " "); |
622 |
CHAR errmsg[1024]; |
623 |
#ifdef USE_EVENT_LOG |
624 |
HANDLE hEventSource; |
625 |
LPTSTR lpszStrings[1]; |
626 |
#endif |
627 |
|
628 |
if (! ISDB (DB_VERBOSE)) |
629 |
{ |
630 |
sprintf(errmsg, |
631 |
_("%s: Interrupt/Exception caught (code = 0x%x, addr = 0x%x)\n"), |
632 |
prg, exrec->ExceptionCode, exrec->ExceptionAddress); |
633 |
fprintf(stderr, errmsg); |
634 |
exit(255); |
635 |
} |
636 |
|
637 |
sprintf(errmsg, |
638 |
_("\nUnhandled exception filter called from program %s\nExceptionCode = %x\nExceptionFlags = %x\nExceptionAddress = %x\n"), |
639 |
prg, exrec->ExceptionCode, exrec->ExceptionFlags, |
640 |
exrec->ExceptionAddress); |
641 |
|
642 |
if (exrec->ExceptionCode == EXCEPTION_ACCESS_VIOLATION |
643 |
&& exrec->NumberParameters >= 2) |
644 |
sprintf(&errmsg[strlen(errmsg)], |
645 |
(exrec->ExceptionInformation[0] |
646 |
? _("Access violation: write operation at address %x\n") |
647 |
: _("Access violation: read operation at address %x\n")), |
648 |
exrec->ExceptionInformation[1]); |
649 |
|
650 |
/* turn this on if we want to put stuff in the event log too */ |
651 |
#ifdef USE_EVENT_LOG |
652 |
hEventSource = RegisterEventSource(NULL, "GNU Make"); |
653 |
lpszStrings[0] = errmsg; |
654 |
|
655 |
if (hEventSource != NULL) |
656 |
{ |
657 |
ReportEvent(hEventSource, /* handle of event source */ |
658 |
EVENTLOG_ERROR_TYPE, /* event type */ |
659 |
0, /* event category */ |
660 |
0, /* event ID */ |
661 |
NULL, /* current user's SID */ |
662 |
1, /* strings in lpszStrings */ |
663 |
0, /* no bytes of raw data */ |
664 |
lpszStrings, /* array of error strings */ |
665 |
NULL); /* no raw data */ |
666 |
|
667 |
(VOID) DeregisterEventSource(hEventSource); |
668 |
} |
669 |
#endif |
670 |
|
671 |
/* Write the error to stderr too */ |
672 |
fprintf(stderr, errmsg); |
673 |
|
674 |
#ifdef DEBUG |
675 |
return EXCEPTION_CONTINUE_SEARCH; |
676 |
#else |
677 |
exit(255); |
678 |
return (255); /* not reached */ |
679 |
#endif |
680 |
} |
681 |
|
682 |
/* |
683 |
* On WIN32 systems we don't have the luxury of a /bin directory that |
684 |
* is mapped globally to every drive mounted to the system. Since make could |
685 |
* be invoked from any drive, and we don't want to propogate /bin/sh |
686 |
* to every single drive. Allow ourselves a chance to search for |
687 |
* a value for default shell here (if the default path does not exist). |
688 |
*/ |
689 |
|
690 |
int |
691 |
find_and_set_default_shell (char *token) |
692 |
{ |
693 |
int sh_found = 0; |
694 |
char* search_token; |
695 |
PATH_VAR(sh_path); |
696 |
extern char *default_shell; |
697 |
|
698 |
if (!token) |
699 |
search_token = default_shell; |
700 |
else |
701 |
search_token = token; |
702 |
|
703 |
if (!no_default_sh_exe && |
704 |
(token == NULL || !strcmp(search_token, default_shell))) { |
705 |
/* no new information, path already set or known */ |
706 |
sh_found = 1; |
707 |
} else if (file_exists_p(search_token)) { |
708 |
/* search token path was found */ |
709 |
sprintf(sh_path, "%s", search_token); |
710 |
default_shell = xstrdup(w32ify(sh_path,0)); |
711 |
DB (DB_VERBOSE, |
712 |
(_("find_and_set_shell setting default_shell = %s\n"), default_shell)); |
713 |
sh_found = 1; |
714 |
} else { |
715 |
char *p; |
716 |
struct variable *v = lookup_variable ("Path", 4); |
717 |
|
718 |
/* |
719 |
* Search Path for shell |
720 |
*/ |
721 |
if (v && v->value) { |
722 |
char *ep; |
723 |
|
724 |
p = v->value; |
725 |
ep = strchr(p, PATH_SEPARATOR_CHAR); |
726 |
|
727 |
while (ep && *ep) { |
728 |
*ep = '\0'; |
729 |
|
730 |
if (dir_file_exists_p(p, search_token)) { |
731 |
sprintf(sh_path, "%s/%s", p, search_token); |
732 |
default_shell = xstrdup(w32ify(sh_path,0)); |
733 |
sh_found = 1; |
734 |
*ep = PATH_SEPARATOR_CHAR; |
735 |
|
736 |
/* terminate loop */ |
737 |
p += strlen(p); |
738 |
} else { |
739 |
*ep = PATH_SEPARATOR_CHAR; |
740 |
p = ++ep; |
741 |
} |
742 |
|
743 |
ep = strchr(p, PATH_SEPARATOR_CHAR); |
744 |
} |
745 |
|
746 |
/* be sure to check last element of Path */ |
747 |
if (p && *p && dir_file_exists_p(p, search_token)) { |
748 |
sprintf(sh_path, "%s/%s", p, search_token); |
749 |
default_shell = xstrdup(w32ify(sh_path,0)); |
750 |
sh_found = 1; |
751 |
} |
752 |
|
753 |
if (sh_found) |
754 |
DB (DB_VERBOSE, |
755 |
(_("find_and_set_shell path search set default_shell = %s\n"), |
756 |
default_shell)); |
757 |
} |
758 |
} |
759 |
|
760 |
/* naive test */ |
761 |
if (!unixy_shell && sh_found && |
762 |
(strstr(default_shell, "sh") || strstr(default_shell, "SH"))) { |
763 |
unixy_shell = 1; |
764 |
batch_mode_shell = 0; |
765 |
} |
766 |
|
767 |
#ifdef BATCH_MODE_ONLY_SHELL |
768 |
batch_mode_shell = 1; |
769 |
#endif |
770 |
|
771 |
return (sh_found); |
772 |
} |
773 |
#endif /* WINDOWS32 */ |
774 |
|
775 |
#ifdef __MSDOS__ |
776 |
|
777 |
static void |
778 |
msdos_return_to_initial_directory (void) |
779 |
{ |
780 |
if (directory_before_chdir) |
781 |
chdir (directory_before_chdir); |
782 |
} |
783 |
#endif |
784 |
|
785 |
extern char *mktemp PARAMS ((char *template)); |
786 |
extern int mkstemp PARAMS ((char *template)); |
787 |
|
788 |
FILE * |
789 |
open_tmpfile(char **name, const char *template) |
790 |
{ |
791 |
int fd; |
792 |
|
793 |
#if defined HAVE_MKSTEMP || defined HAVE_MKTEMP |
794 |
# define TEMPLATE_LEN strlen (template) |
795 |
#else |
796 |
# define TEMPLATE_LEN L_tmpnam |
797 |
#endif |
798 |
*name = xmalloc (TEMPLATE_LEN + 1); |
799 |
strcpy (*name, template); |
800 |
|
801 |
#if defined HAVE_MKSTEMP && defined HAVE_FDOPEN |
802 |
/* It's safest to use mkstemp(), if we can. */ |
803 |
fd = mkstemp (*name); |
804 |
if (fd == -1) |
805 |
return 0; |
806 |
return fdopen (fd, "w"); |
807 |
#else |
808 |
# ifdef HAVE_MKTEMP |
809 |
(void) mktemp (*name); |
810 |
# else |
811 |
(void) tmpnam (*name); |
812 |
# endif |
813 |
|
814 |
# ifdef HAVE_FDOPEN |
815 |
/* Can't use mkstemp(), but guard against a race condition. */ |
816 |
fd = open (*name, O_CREAT|O_EXCL|O_WRONLY, 0600); |
817 |
if (fd == -1) |
818 |
return 0; |
819 |
return fdopen (fd, "w"); |
820 |
# else |
821 |
/* Not secure, but what can we do? */ |
822 |
return fopen (*name, "w"); |
823 |
# endif |
824 |
#endif |
825 |
} |
826 |
|
827 |
|
828 |
#ifdef _AMIGA |
829 |
int |
830 |
main (int argc, char **argv) |
831 |
#else |
832 |
int |
833 |
main (int argc, char **argv, char **envp) |
834 |
#endif |
835 |
{ |
836 |
static char *stdin_nm = 0; |
837 |
register struct file *f; |
838 |
register unsigned int i; |
839 |
char **p; |
840 |
struct dep *read_makefiles; |
841 |
PATH_VAR (current_directory); |
842 |
#ifdef WINDOWS32 |
843 |
char *unix_path = NULL; |
844 |
char *windows32_path = NULL; |
845 |
|
846 |
SetUnhandledExceptionFilter(handle_runtime_exceptions); |
847 |
|
848 |
/* start off assuming we have no shell */ |
849 |
unixy_shell = 0; |
850 |
no_default_sh_exe = 1; |
851 |
#endif |
852 |
|
853 |
/* Needed for OS/2 */ |
854 |
initialize_main(&argc, &argv); |
855 |
|
856 |
default_goal_file = 0; |
857 |
reading_file = 0; |
858 |
|
859 |
#if defined (__MSDOS__) && !defined (_POSIX_SOURCE) |
860 |
/* Request the most powerful version of `system', to |
861 |
make up for the dumb default shell. */ |
862 |
__system_flags = (__system_redirect |
863 |
| __system_use_shell |
864 |
| __system_allow_multiple_cmds |
865 |
| __system_allow_long_cmds |
866 |
| __system_handle_null_commands |
867 |
| __system_emulate_chdir); |
868 |
|
869 |
#endif |
870 |
|
871 |
/* Set up gettext/internationalization support. */ |
872 |
setlocale (LC_ALL, ""); |
873 |
bindtextdomain (PACKAGE, LOCALEDIR); |
874 |
textdomain (PACKAGE); |
875 |
|
876 |
#ifdef POSIX |
877 |
sigemptyset (&fatal_signal_set); |
878 |
#define ADD_SIG(sig) sigaddset (&fatal_signal_set, sig) |
879 |
#else |
880 |
#ifdef HAVE_SIGSETMASK |
881 |
fatal_signal_mask = 0; |
882 |
#define ADD_SIG(sig) fatal_signal_mask |= sigmask (sig) |
883 |
#else |
884 |
#define ADD_SIG(sig) |
885 |
#endif |
886 |
#endif |
887 |
|
888 |
#define FATAL_SIG(sig) \ |
889 |
if (bsd_signal (sig, fatal_error_signal) == SIG_IGN) \ |
890 |
bsd_signal (sig, SIG_IGN); \ |
891 |
else \ |
892 |
ADD_SIG (sig); |
893 |
|
894 |
#ifdef SIGHUP |
895 |
FATAL_SIG (SIGHUP); |
896 |
#endif |
897 |
#ifdef SIGQUIT |
898 |
FATAL_SIG (SIGQUIT); |
899 |
#endif |
900 |
FATAL_SIG (SIGINT); |
901 |
FATAL_SIG (SIGTERM); |
902 |
|
903 |
#ifdef __MSDOS__ |
904 |
/* Windows 9X delivers FP exceptions in child programs to their |
905 |
parent! We don't want Make to die when a child divides by zero, |
906 |
so we work around that lossage by catching SIGFPE. */ |
907 |
FATAL_SIG (SIGFPE); |
908 |
#endif |
909 |
|
910 |
#ifdef SIGDANGER |
911 |
FATAL_SIG (SIGDANGER); |
912 |
#endif |
913 |
#ifdef SIGXCPU |
914 |
FATAL_SIG (SIGXCPU); |
915 |
#endif |
916 |
#ifdef SIGXFSZ |
917 |
FATAL_SIG (SIGXFSZ); |
918 |
#endif |
919 |
|
920 |
#undef FATAL_SIG |
921 |
|
922 |
/* Do not ignore the child-death signal. This must be done before |
923 |
any children could possibly be created; otherwise, the wait |
924 |
functions won't work on systems with the SVR4 ECHILD brain |
925 |
damage, if our invoker is ignoring this signal. */ |
926 |
|
927 |
#ifdef HAVE_WAIT_NOHANG |
928 |
# if defined SIGCHLD |
929 |
(void) bsd_signal (SIGCHLD, SIG_DFL); |
930 |
# endif |
931 |
# if defined SIGCLD && SIGCLD != SIGCHLD |
932 |
(void) bsd_signal (SIGCLD, SIG_DFL); |
933 |
# endif |
934 |
#endif |
935 |
|
936 |
/* Make sure stdout is line-buffered. */ |
937 |
|
938 |
#ifdef HAVE_SETVBUF |
939 |
# ifdef SETVBUF_REVERSED |
940 |
setvbuf (stdout, _IOLBF, xmalloc (BUFSIZ), BUFSIZ); |
941 |
# else /* setvbuf not reversed. */ |
942 |
/* Some buggy systems lose if we pass 0 instead of allocating ourselves. */ |
943 |
setvbuf (stdout, (char *) 0, _IOLBF, BUFSIZ); |
944 |
# endif /* setvbuf reversed. */ |
945 |
#elif HAVE_SETLINEBUF |
946 |
setlinebuf (stdout); |
947 |
#endif /* setlinebuf missing. */ |
948 |
|
949 |
/* Figure out where this program lives. */ |
950 |
|
951 |
if (argv[0] == 0) |
952 |
argv[0] = ""; |
953 |
if (argv[0][0] == '\0') |
954 |
program = "make"; |
955 |
else |
956 |
{ |
957 |
#ifdef VMS |
958 |
program = strrchr (argv[0], ']'); |
959 |
#else |
960 |
program = strrchr (argv[0], '/'); |
961 |
#endif |
962 |
#if defined(__MSDOS__) || defined(__EMX__) |
963 |
if (program == 0) |
964 |
program = strrchr (argv[0], '\\'); |
965 |
else |
966 |
{ |
967 |
/* Some weird environments might pass us argv[0] with |
968 |
both kinds of slashes; we must find the rightmost. */ |
969 |
char *p = strrchr (argv[0], '\\'); |
970 |
if (p && p > program) |
971 |
program = p; |
972 |
} |
973 |
if (program == 0 && argv[0][1] == ':') |
974 |
program = argv[0] + 1; |
975 |
#endif |
976 |
if (program == 0) |
977 |
program = argv[0]; |
978 |
else |
979 |
++program; |
980 |
} |
981 |
|
982 |
/* Set up to access user data (files). */ |
983 |
user_access (); |
984 |
|
985 |
initialize_global_hash_tables (); |
986 |
|
987 |
/* Figure out where we are. */ |
988 |
|
989 |
#ifdef WINDOWS32 |
990 |
if (getcwd_fs (current_directory, GET_PATH_MAX) == 0) |
991 |
#else |
992 |
if (getcwd (current_directory, GET_PATH_MAX) == 0) |
993 |
#endif |
994 |
{ |
995 |
#ifdef HAVE_GETCWD |
996 |
perror_with_name ("getcwd: ", ""); |
997 |
#else |
998 |
error (NILF, "getwd: %s", current_directory); |
999 |
#endif |
1000 |
current_directory[0] = '\0'; |
1001 |
directory_before_chdir = 0; |
1002 |
} |
1003 |
else |
1004 |
directory_before_chdir = xstrdup (current_directory); |
1005 |
#ifdef __MSDOS__ |
1006 |
/* Make sure we will return to the initial directory, come what may. */ |
1007 |
atexit (msdos_return_to_initial_directory); |
1008 |
#endif |
1009 |
|
1010 |
/* Initialize the special variables. */ |
1011 |
define_variable (".VARIABLES", 10, "", o_default, 0)->special = 1; |
1012 |
/* define_variable (".TARGETS", 8, "", o_default, 0); */ |
1013 |
|
1014 |
/* Read in variables from the environment. It is important that this be |
1015 |
done before $(MAKE) is figured out so its definitions will not be |
1016 |
from the environment. */ |
1017 |
|
1018 |
#ifndef _AMIGA |
1019 |
for (i = 0; envp[i] != 0; ++i) |
1020 |
{ |
1021 |
int do_not_define; |
1022 |
register char *ep = envp[i]; |
1023 |
|
1024 |
/* by default, everything gets defined and exported */ |
1025 |
do_not_define = 0; |
1026 |
|
1027 |
while (*ep != '=') |
1028 |
++ep; |
1029 |
#ifdef WINDOWS32 |
1030 |
if (!unix_path && strneq(envp[i], "PATH=", 5)) |
1031 |
unix_path = ep+1; |
1032 |
else if (!windows32_path && !strnicmp(envp[i], "Path=", 5)) { |
1033 |
do_not_define = 1; /* it gets defined after loop exits */ |
1034 |
windows32_path = ep+1; |
1035 |
} |
1036 |
#endif |
1037 |
/* The result of pointer arithmetic is cast to unsigned int for |
1038 |
machines where ptrdiff_t is a different size that doesn't widen |
1039 |
the same. */ |
1040 |
if (!do_not_define) |
1041 |
define_variable (envp[i], (unsigned int) (ep - envp[i]), |
1042 |
ep + 1, o_env, 1) |
1043 |
/* Force exportation of every variable culled from the environment. |
1044 |
We used to rely on target_environment's v_default code to do this. |
1045 |
But that does not work for the case where an environment variable |
1046 |
is redefined in a makefile with `override'; it should then still |
1047 |
be exported, because it was originally in the environment. */ |
1048 |
->export = v_export; |
1049 |
} |
1050 |
#ifdef WINDOWS32 |
1051 |
/* |
1052 |
* Make sure that this particular spelling of 'Path' is available |
1053 |
*/ |
1054 |
if (windows32_path) |
1055 |
define_variable("Path", 4, windows32_path, o_env, 1)->export = v_export; |
1056 |
else if (unix_path) |
1057 |
define_variable("Path", 4, unix_path, o_env, 1)->export = v_export; |
1058 |
else |
1059 |
define_variable("Path", 4, "", o_env, 1)->export = v_export; |
1060 |
|
1061 |
/* |
1062 |
* PATH defaults to Path iff PATH not found and Path is found. |
1063 |
*/ |
1064 |
if (!unix_path && windows32_path) |
1065 |
define_variable("PATH", 4, windows32_path, o_env, 1)->export = v_export; |
1066 |
#endif |
1067 |
#else /* For Amiga, read the ENV: device, ignoring all dirs */ |
1068 |
{ |
1069 |
BPTR env, file, old; |
1070 |
char buffer[1024]; |
1071 |
int len; |
1072 |
__aligned struct FileInfoBlock fib; |
1073 |
|
1074 |
env = Lock ("ENV:", ACCESS_READ); |
1075 |
if (env) |
1076 |
{ |
1077 |
old = CurrentDir (DupLock(env)); |
1078 |
Examine (env, &fib); |
1079 |
|
1080 |
while (ExNext (env, &fib)) |
1081 |
{ |
1082 |
if (fib.fib_DirEntryType < 0) /* File */ |
1083 |
{ |
1084 |
/* Define an empty variable. It will be filled in |
1085 |
variable_lookup(). Makes startup quite a bit |
1086 |
faster. */ |
1087 |
define_variable (fib.fib_FileName, |
1088 |
strlen (fib.fib_FileName), |
1089 |
"", o_env, 1)->export = v_export; |
1090 |
} |
1091 |
} |
1092 |
UnLock (env); |
1093 |
UnLock(CurrentDir(old)); |
1094 |
} |
1095 |
} |
1096 |
#endif |
1097 |
|
1098 |
/* Decode the switches. */ |
1099 |
|
1100 |
decode_env_switches ("MAKEFLAGS", 9); |
1101 |
#if 0 |
1102 |
/* People write things like: |
1103 |
MFLAGS="CC=gcc -pipe" "CFLAGS=-g" |
1104 |
and we set the -p, -i and -e switches. Doesn't seem quite right. */ |
1105 |
decode_env_switches ("MFLAGS", 6); |
1106 |
#endif |
1107 |
decode_switches (argc, argv, 0); |
1108 |
#ifdef WINDOWS32 |
1109 |
if (suspend_flag) { |
1110 |
fprintf(stderr, "%s (pid = %d)\n", argv[0], GetCurrentProcessId()); |
1111 |
fprintf(stderr, _("%s is suspending for 30 seconds..."), argv[0]); |
1112 |
Sleep(30 * 1000); |
1113 |
fprintf(stderr, _("done sleep(30). Continuing.\n")); |
1114 |
} |
1115 |
#endif |
1116 |
|
1117 |
decode_debug_flags (); |
1118 |
|
1119 |
/* Print version information. */ |
1120 |
|
1121 |
if (print_version_flag || print_data_base_flag || db_level) |
1122 |
print_version (); |
1123 |
|
1124 |
/* `make --version' is supposed to just print the version and exit. */ |
1125 |
if (print_version_flag) |
1126 |
die (0); |
1127 |
|
1128 |
#ifndef VMS |
1129 |
/* Set the "MAKE_COMMAND" variable to the name we were invoked with. |
1130 |
(If it is a relative pathname with a slash, prepend our directory name |
1131 |
so the result will run the same program regardless of the current dir. |
1132 |
If it is a name with no slash, we can only hope that PATH did not |
1133 |
find it in the current directory.) */ |
1134 |
#ifdef WINDOWS32 |
1135 |
/* |
1136 |
* Convert from backslashes to forward slashes for |
1137 |
* programs like sh which don't like them. Shouldn't |
1138 |
* matter if the path is one way or the other for |
1139 |
* CreateProcess(). |
1140 |
*/ |
1141 |
if (strpbrk(argv[0], "/:\\") || |
1142 |
strstr(argv[0], "..") || |
1143 |
strneq(argv[0], "//", 2)) |
1144 |
argv[0] = xstrdup(w32ify(argv[0],1)); |
1145 |
#else /* WINDOWS32 */ |
1146 |
#if defined (__MSDOS__) || defined (__EMX__) |
1147 |
if (strchr (argv[0], '\\')) |
1148 |
{ |
1149 |
char *p; |
1150 |
|
1151 |
argv[0] = xstrdup (argv[0]); |
1152 |
for (p = argv[0]; *p; p++) |
1153 |
if (*p == '\\') |
1154 |
*p = '/'; |
1155 |
} |
1156 |
/* If argv[0] is not in absolute form, prepend the current |
1157 |
directory. This can happen when Make is invoked by another DJGPP |
1158 |
program that uses a non-absolute name. */ |
1159 |
if (current_directory[0] != '\0' |
1160 |
&& argv[0] != 0 |
1161 |
&& (argv[0][0] != '/' && (argv[0][0] == '\0' || argv[0][1] != ':'))) |
1162 |
argv[0] = concat (current_directory, "/", argv[0]); |
1163 |
#else /* !__MSDOS__ */ |
1164 |
if (current_directory[0] != '\0' |
1165 |
&& argv[0] != 0 && argv[0][0] != '/' && strchr (argv[0], '/') != 0) |
1166 |
argv[0] = concat (current_directory, "/", argv[0]); |
1167 |
#endif /* !__MSDOS__ */ |
1168 |
#endif /* WINDOWS32 */ |
1169 |
#endif |
1170 |
|
1171 |
/* The extra indirection through $(MAKE_COMMAND) is done |
1172 |
for hysterical raisins. */ |
1173 |
(void) define_variable ("MAKE_COMMAND", 12, argv[0], o_default, 0); |
1174 |
(void) define_variable ("MAKE", 4, "$(MAKE_COMMAND)", o_default, 1); |
1175 |
|
1176 |
if (command_variables != 0) |
1177 |
{ |
1178 |
struct command_variable *cv; |
1179 |
struct variable *v; |
1180 |
unsigned int len = 0; |
1181 |
char *value, *p; |
1182 |
|
1183 |
/* Figure out how much space will be taken up by the command-line |
1184 |
variable definitions. */ |
1185 |
for (cv = command_variables; cv != 0; cv = cv->next) |
1186 |
{ |
1187 |
v = cv->variable; |
1188 |
len += 2 * strlen (v->name); |
1189 |
if (! v->recursive) |
1190 |
++len; |
1191 |
++len; |
1192 |
len += 2 * strlen (v->value); |
1193 |
++len; |
1194 |
} |
1195 |
|
1196 |
/* Now allocate a buffer big enough and fill it. */ |
1197 |
p = value = (char *) alloca (len); |
1198 |
for (cv = command_variables; cv != 0; cv = cv->next) |
1199 |
{ |
1200 |
v = cv->variable; |
1201 |
p = quote_for_env (p, v->name); |
1202 |
if (! v->recursive) |
1203 |
*p++ = ':'; |
1204 |
*p++ = '='; |
1205 |
p = quote_for_env (p, v->value); |
1206 |
*p++ = ' '; |
1207 |
} |
1208 |
p[-1] = '\0'; /* Kill the final space and terminate. */ |
1209 |
|
1210 |
/* Define an unchangeable variable with a name that no POSIX.2 |
1211 |
makefile could validly use for its own variable. */ |
1212 |
(void) define_variable ("-*-command-variables-*-", 23, |
1213 |
value, o_automatic, 0); |
1214 |
|
1215 |
/* Define the variable; this will not override any user definition. |
1216 |
Normally a reference to this variable is written into the value of |
1217 |
MAKEFLAGS, allowing the user to override this value to affect the |
1218 |
exported value of MAKEFLAGS. In POSIX-pedantic mode, we cannot |
1219 |
allow the user's setting of MAKEOVERRIDES to affect MAKEFLAGS, so |
1220 |
a reference to this hidden variable is written instead. */ |
1221 |
(void) define_variable ("MAKEOVERRIDES", 13, |
1222 |
"${-*-command-variables-*-}", o_env, 1); |
1223 |
} |
1224 |
|
1225 |
/* If there were -C flags, move ourselves about. */ |
1226 |
if (directories != 0) |
1227 |
for (i = 0; directories->list[i] != 0; ++i) |
1228 |
{ |
1229 |
char *dir = directories->list[i]; |
1230 |
if (dir[0] == '~') |
1231 |
{ |
1232 |
char *expanded = tilde_expand (dir); |
1233 |
if (expanded != 0) |
1234 |
dir = expanded; |
1235 |
} |
1236 |
if (chdir (dir) < 0) |
1237 |
pfatal_with_name (dir); |
1238 |
if (dir != directories->list[i]) |
1239 |
free (dir); |
1240 |
} |
1241 |
|
1242 |
#ifdef WINDOWS32 |
1243 |
/* |
1244 |
* THIS BLOCK OF CODE MUST COME AFTER chdir() CALL ABOVE IN ORDER |
1245 |
* TO NOT CONFUSE THE DEPENDENCY CHECKING CODE IN implicit.c. |
1246 |
* |
1247 |
* The functions in dir.c can incorrectly cache information for "." |
1248 |
* before we have changed directory and this can cause file |
1249 |
* lookups to fail because the current directory (.) was pointing |
1250 |
* at the wrong place when it was first evaluated. |
1251 |
*/ |
1252 |
no_default_sh_exe = !find_and_set_default_shell(NULL); |
1253 |
|
1254 |
#endif /* WINDOWS32 */ |
1255 |
/* Figure out the level of recursion. */ |
1256 |
{ |
1257 |
struct variable *v = lookup_variable (MAKELEVEL_NAME, MAKELEVEL_LENGTH); |
1258 |
if (v != 0 && v->value[0] != '\0' && v->value[0] != '-') |
1259 |
makelevel = (unsigned int) atoi (v->value); |
1260 |
else |
1261 |
makelevel = 0; |
1262 |
} |
1263 |
|
1264 |
/* Except under -s, always do -w in sub-makes and under -C. */ |
1265 |
if (!silent_flag && (directories != 0 || makelevel > 0)) |
1266 |
print_directory_flag = 1; |
1267 |
|
1268 |
/* Let the user disable that with --no-print-directory. */ |
1269 |
if (inhibit_print_directory_flag) |
1270 |
print_directory_flag = 0; |
1271 |
|
1272 |
/* If -R was given, set -r too (doesn't make sense otherwise!) */ |
1273 |
if (no_builtin_variables_flag) |
1274 |
no_builtin_rules_flag = 1; |
1275 |
|
1276 |
/* Construct the list of include directories to search. */ |
1277 |
|
1278 |
construct_include_path (include_directories == 0 ? (char **) 0 |
1279 |
: include_directories->list); |
1280 |
|
1281 |
/* Figure out where we are now, after chdir'ing. */ |
1282 |
if (directories == 0) |
1283 |
/* We didn't move, so we're still in the same place. */ |
1284 |
starting_directory = current_directory; |
1285 |
else |
1286 |
{ |
1287 |
#ifdef WINDOWS32 |
1288 |
if (getcwd_fs (current_directory, GET_PATH_MAX) == 0) |
1289 |
#else |
1290 |
if (getcwd (current_directory, GET_PATH_MAX) == 0) |
1291 |
#endif |
1292 |
{ |
1293 |
#ifdef HAVE_GETCWD |
1294 |
perror_with_name ("getcwd: ", ""); |
1295 |
#else |
1296 |
error (NILF, "getwd: %s", current_directory); |
1297 |
#endif |
1298 |
starting_directory = 0; |
1299 |
} |
1300 |
else |
1301 |
starting_directory = current_directory; |
1302 |
} |
1303 |
|
1304 |
(void) define_variable ("CURDIR", 6, current_directory, o_default, 0); |
1305 |
|
1306 |
/* Read any stdin makefiles into temporary files. */ |
1307 |
|
1308 |
if (makefiles != 0) |
1309 |
{ |
1310 |
register unsigned int i; |
1311 |
for (i = 0; i < makefiles->idx; ++i) |
1312 |
if (makefiles->list[i][0] == '-' && makefiles->list[i][1] == '\0') |
1313 |
{ |
1314 |
/* This makefile is standard input. Since we may re-exec |
1315 |
and thus re-read the makefiles, we read standard input |
1316 |
into a temporary file and read from that. */ |
1317 |
FILE *outfile; |
1318 |
char *template, *tmpdir; |
1319 |
|
1320 |
if (stdin_nm) |
1321 |
fatal (NILF, _("Makefile from standard input specified twice.")); |
1322 |
|
1323 |
#ifdef VMS |
1324 |
# define DEFAULT_TMPDIR "sys$scratch:" |
1325 |
#else |
1326 |
# ifdef P_tmpdir |
1327 |
# define DEFAULT_TMPDIR P_tmpdir |
1328 |
# else |
1329 |
# define DEFAULT_TMPDIR "/tmp" |
1330 |
# endif |
1331 |
#endif |
1332 |
#define DEFAULT_TMPFILE "GmXXXXXX" |
1333 |
|
1334 |
if (((tmpdir = getenv ("TMPDIR")) == NULL || *tmpdir == '\0') |
1335 |
#if defined (__MSDOS__) || defined (WINDOWS32) || defined (__EMX__) |
1336 |
/* These are also used commonly on these platforms. */ |
1337 |
&& ((tmpdir = getenv ("TEMP")) == NULL || *tmpdir == '\0') |
1338 |
&& ((tmpdir = getenv ("TMP")) == NULL || *tmpdir == '\0') |
1339 |
#endif |
1340 |
) |
1341 |
tmpdir = DEFAULT_TMPDIR; |
1342 |
|
1343 |
template = (char *) alloca (strlen (tmpdir) |
1344 |
+ sizeof (DEFAULT_TMPFILE) + 1); |
1345 |
strcpy (template, tmpdir); |
1346 |
|
1347 |
#ifdef HAVE_DOS_PATHS |
1348 |
if (strchr ("/\\", template[strlen (template) - 1]) == NULL) |
1349 |
strcat (template, "/"); |
1350 |
#else |
1351 |
# ifndef VMS |
1352 |
if (template[strlen (template) - 1] != '/') |
1353 |
strcat (template, "/"); |
1354 |
# endif /* !VMS */ |
1355 |
#endif /* !HAVE_DOS_PATHS */ |
1356 |
|
1357 |
strcat (template, DEFAULT_TMPFILE); |
1358 |
outfile = open_tmpfile (&stdin_nm, template); |
1359 |
if (outfile == 0) |
1360 |
pfatal_with_name (_("fopen (temporary file)")); |
1361 |
while (!feof (stdin)) |
1362 |
{ |
1363 |
char buf[2048]; |
1364 |
unsigned int n = fread (buf, 1, sizeof (buf), stdin); |
1365 |
if (n > 0 && fwrite (buf, 1, n, outfile) != n) |
1366 |
pfatal_with_name (_("fwrite (temporary file)")); |
1367 |
} |
1368 |
(void) fclose (outfile); |
1369 |
|
1370 |
/* Replace the name that read_all_makefiles will |
1371 |
see with the name of the temporary file. */ |
1372 |
makefiles->list[i] = xstrdup (stdin_nm); |
1373 |
|
1374 |
/* Make sure the temporary file will not be remade. */ |
1375 |
f = enter_file (stdin_nm); |
1376 |
f->updated = 1; |
1377 |
f->update_status = 0; |
1378 |
f->command_state = cs_finished; |
1379 |
/* Can't be intermediate, or it'll be removed too early for |
1380 |
make re-exec. */ |
1381 |
f->intermediate = 0; |
1382 |
f->dontcare = 0; |
1383 |
} |
1384 |
} |
1385 |
|
1386 |
#ifndef __EMX__ /* Don't use a SIGCHLD handler for OS/2 */ |
1387 |
#if defined(MAKE_JOBSERVER) || !defined(HAVE_WAIT_NOHANG) |
1388 |
/* Set up to handle children dying. This must be done before |
1389 |
reading in the makefiles so that `shell' function calls will work. |
1390 |
|
1391 |
If we don't have a hanging wait we have to fall back to old, broken |
1392 |
functionality here and rely on the signal handler and counting |
1393 |
children. |
1394 |
|
1395 |
If we're using the jobs pipe we need a signal handler so that |
1396 |
SIGCHLD is not ignored; we need it to interrupt the read(2) of the |
1397 |
jobserver pipe in job.c if we're waiting for a token. |
1398 |
|
1399 |
If none of these are true, we don't need a signal handler at all. */ |
1400 |
{ |
1401 |
extern RETSIGTYPE child_handler PARAMS ((int sig)); |
1402 |
# if defined SIGCHLD |
1403 |
bsd_signal (SIGCHLD, child_handler); |
1404 |
# endif |
1405 |
# if defined SIGCLD && SIGCLD != SIGCHLD |
1406 |
bsd_signal (SIGCLD, child_handler); |
1407 |
# endif |
1408 |
} |
1409 |
#endif |
1410 |
#endif |
1411 |
|
1412 |
/* Let the user send us SIGUSR1 to toggle the -d flag during the run. */ |
1413 |
#ifdef SIGUSR1 |
1414 |
bsd_signal (SIGUSR1, debug_signal_handler); |
1415 |
#endif |
1416 |
|
1417 |
/* Define the initial list of suffixes for old-style rules. */ |
1418 |
|
1419 |
set_default_suffixes (); |
1420 |
|
1421 |
/* Define the file rules for the built-in suffix rules. These will later |
1422 |
be converted into pattern rules. We used to do this in |
1423 |
install_default_implicit_rules, but since that happens after reading |
1424 |
makefiles, it results in the built-in pattern rules taking precedence |
1425 |
over makefile-specified suffix rules, which is wrong. */ |
1426 |
|
1427 |
install_default_suffix_rules (); |
1428 |
|
1429 |
/* Define some internal and special variables. */ |
1430 |
|
1431 |
define_automatic_variables (); |
1432 |
|
1433 |
/* Set up the MAKEFLAGS and MFLAGS variables |
1434 |
so makefiles can look at them. */ |
1435 |
|
1436 |
define_makeflags (0, 0); |
1437 |
|
1438 |
/* Define the default variables. */ |
1439 |
define_default_variables (); |
1440 |
|
1441 |
/* Read all the makefiles. */ |
1442 |
|
1443 |
default_file = enter_file (".DEFAULT"); |
1444 |
|
1445 |
read_makefiles |
1446 |
= read_all_makefiles (makefiles == 0 ? (char **) 0 : makefiles->list); |
1447 |
|
1448 |
#ifdef WINDOWS32 |
1449 |
/* look one last time after reading all Makefiles */ |
1450 |
if (no_default_sh_exe) |
1451 |
no_default_sh_exe = !find_and_set_default_shell(NULL); |
1452 |
|
1453 |
if (no_default_sh_exe && job_slots != 1) { |
1454 |
error (NILF, _("Do not specify -j or --jobs if sh.exe is not available.")); |
1455 |
error (NILF, _("Resetting make for single job mode.")); |
1456 |
job_slots = 1; |
1457 |
} |
1458 |
#endif /* WINDOWS32 */ |
1459 |
|
1460 |
#if defined (__MSDOS__) || defined (__EMX__) |
1461 |
/* We need to know what kind of shell we will be using. */ |
1462 |
{ |
1463 |
extern int _is_unixy_shell (const char *_path); |
1464 |
struct variable *shv = lookup_variable ("SHELL", 5); |
1465 |
extern int unixy_shell; |
1466 |
extern char *default_shell; |
1467 |
|
1468 |
if (shv && *shv->value) |
1469 |
{ |
1470 |
char *shell_path = recursively_expand(shv); |
1471 |
|
1472 |
if (shell_path && _is_unixy_shell (shell_path)) |
1473 |
unixy_shell = 1; |
1474 |
else |
1475 |
unixy_shell = 0; |
1476 |
if (shell_path) |
1477 |
default_shell = shell_path; |
1478 |
} |
1479 |
} |
1480 |
#endif /* __MSDOS__ || __EMX__ */ |
1481 |
|
1482 |
/* Decode switches again, in case the variables were set by the makefile. */ |
1483 |
decode_env_switches ("MAKEFLAGS", 9); |
1484 |
#if 0 |
1485 |
decode_env_switches ("MFLAGS", 6); |
1486 |
#endif |
1487 |
|
1488 |
#if defined (__MSDOS__) || defined (__EMX__) |
1489 |
if (job_slots != 1 |
1490 |
# ifdef __EMX__ |
1491 |
&& _osmode != OS2_MODE /* turn off -j if we are in DOS mode */ |
1492 |
# endif |
1493 |
) |
1494 |
{ |
1495 |
error (NILF, |
1496 |
_("Parallel jobs (-j) are not supported on this platform.")); |
1497 |
error (NILF, _("Resetting to single job (-j1) mode.")); |
1498 |
job_slots = 1; |
1499 |
} |
1500 |
#endif |
1501 |
|
1502 |
#ifdef MAKE_JOBSERVER |
1503 |
/* If the jobserver-fds option is seen, make sure that -j is reasonable. */ |
1504 |
|
1505 |
if (jobserver_fds) |
1506 |
{ |
1507 |
char *cp; |
1508 |
|
1509 |
for (i=1; i < jobserver_fds->idx; ++i) |
1510 |
if (!streq (jobserver_fds->list[0], jobserver_fds->list[i])) |
1511 |
fatal (NILF, _("internal error: multiple --jobserver-fds options")); |
1512 |
|
1513 |
/* Now parse the fds string and make sure it has the proper format. */ |
1514 |
|
1515 |
cp = jobserver_fds->list[0]; |
1516 |
|
1517 |
if (sscanf (cp, "%d,%d", &job_fds[0], &job_fds[1]) != 2) |
1518 |
fatal (NILF, |
1519 |
_("internal error: invalid --jobserver-fds string `%s'"), cp); |
1520 |
|
1521 |
/* The combination of a pipe + !job_slots means we're using the |
1522 |
jobserver. If !job_slots and we don't have a pipe, we can start |
1523 |
infinite jobs. If we see both a pipe and job_slots >0 that means the |
1524 |
user set -j explicitly. This is broken; in this case obey the user |
1525 |
(ignore the jobserver pipe for this make) but print a message. */ |
1526 |
|
1527 |
if (job_slots > 0) |
1528 |
error (NILF, |
1529 |
_("warning: -jN forced in submake: disabling jobserver mode.")); |
1530 |
|
1531 |
/* Create a duplicate pipe, that will be closed in the SIGCHLD |
1532 |
handler. If this fails with EBADF, the parent has closed the pipe |
1533 |
on us because it didn't think we were a submake. If so, print a |
1534 |
warning then default to -j1. */ |
1535 |
|
1536 |
else if ((job_rfd = dup (job_fds[0])) < 0) |
1537 |
{ |
1538 |
if (errno != EBADF) |
1539 |
pfatal_with_name (_("dup jobserver")); |
1540 |
|
1541 |
error (NILF, |
1542 |
_("warning: jobserver unavailable: using -j1. Add `+' to parent make rule.")); |
1543 |
job_slots = 1; |
1544 |
} |
1545 |
|
1546 |
if (job_slots > 0) |
1547 |
{ |
1548 |
close (job_fds[0]); |
1549 |
close (job_fds[1]); |
1550 |
job_fds[0] = job_fds[1] = -1; |
1551 |
free (jobserver_fds->list); |
1552 |
free (jobserver_fds); |
1553 |
jobserver_fds = 0; |
1554 |
} |
1555 |
} |
1556 |
|
1557 |
/* If we have >1 slot but no jobserver-fds, then we're a top-level make. |
1558 |
Set up the pipe and install the fds option for our children. */ |
1559 |
|
1560 |
if (job_slots > 1) |
1561 |
{ |
1562 |
char c = '+'; |
1563 |
|
1564 |
if (pipe (job_fds) < 0 || (job_rfd = dup (job_fds[0])) < 0) |
1565 |
pfatal_with_name (_("creating jobs pipe")); |
1566 |
|
1567 |
/* Every make assumes that it always has one job it can run. For the |
1568 |
submakes it's the token they were given by their parent. For the |
1569 |
top make, we just subtract one from the number the user wants. We |
1570 |
want job_slots to be 0 to indicate we're using the jobserver. */ |
1571 |
|
1572 |
while (--job_slots) |
1573 |
{ |
1574 |
int r; |
1575 |
|
1576 |
EINTRLOOP (r, write (job_fds[1], &c, 1)); |
1577 |
if (r != 1) |
1578 |
pfatal_with_name (_("init jobserver pipe")); |
1579 |
} |
1580 |
|
1581 |
/* Fill in the jobserver_fds struct for our children. */ |
1582 |
|
1583 |
jobserver_fds = (struct stringlist *) |
1584 |
xmalloc (sizeof (struct stringlist)); |
1585 |
jobserver_fds->list = (char **) xmalloc (sizeof (char *)); |
1586 |
jobserver_fds->list[0] = xmalloc ((sizeof ("1024")*2)+1); |
1587 |
|
1588 |
sprintf (jobserver_fds->list[0], "%d,%d", job_fds[0], job_fds[1]); |
1589 |
jobserver_fds->idx = 1; |
1590 |
jobserver_fds->max = 1; |
1591 |
} |
1592 |
#endif |
1593 |
|
1594 |
/* Set up MAKEFLAGS and MFLAGS again, so they will be right. */ |
1595 |
|
1596 |
define_makeflags (1, 0); |
1597 |
|
1598 |
/* Make each `struct dep' point at the `struct file' for the file |
1599 |
depended on. Also do magic for special targets. */ |
1600 |
|
1601 |
snap_deps (); |
1602 |
|
1603 |
/* Convert old-style suffix rules to pattern rules. It is important to |
1604 |
do this before installing the built-in pattern rules below, so that |
1605 |
makefile-specified suffix rules take precedence over built-in pattern |
1606 |
rules. */ |
1607 |
|
1608 |
convert_to_pattern (); |
1609 |
|
1610 |
/* Install the default implicit pattern rules. |
1611 |
This used to be done before reading the makefiles. |
1612 |
But in that case, built-in pattern rules were in the chain |
1613 |
before user-defined ones, so they matched first. */ |
1614 |
|
1615 |
install_default_implicit_rules (); |
1616 |
|
1617 |
/* Compute implicit rule limits. */ |
1618 |
|
1619 |
count_implicit_rule_limits (); |
1620 |
|
1621 |
/* Construct the listings of directories in VPATH lists. */ |
1622 |
|
1623 |
build_vpath_lists (); |
1624 |
|
1625 |
/* Mark files given with -o flags as very old |
1626 |
and as having been updated already, and files given with -W flags as |
1627 |
brand new (time-stamp as far as possible into the future). */ |
1628 |
|
1629 |
if (old_files != 0) |
1630 |
for (p = old_files->list; *p != 0; ++p) |
1631 |
{ |
1632 |
f = enter_command_line_file (*p); |
1633 |
f->last_mtime = f->mtime_before_update = OLD_MTIME; |
1634 |
f->updated = 1; |
1635 |
f->update_status = 0; |
1636 |
f->command_state = cs_finished; |
1637 |
} |
1638 |
|
1639 |
if (new_files != 0) |
1640 |
{ |
1641 |
for (p = new_files->list; *p != 0; ++p) |
1642 |
{ |
1643 |
f = enter_command_line_file (*p); |
1644 |
f->last_mtime = f->mtime_before_update = NEW_MTIME; |
1645 |
} |
1646 |
} |
1647 |
|
1648 |
/* Initialize the remote job module. */ |
1649 |
remote_setup (); |
1650 |
|
1651 |
if (read_makefiles != 0) |
1652 |
{ |
1653 |
/* Update any makefiles if necessary. */ |
1654 |
|
1655 |
FILE_TIMESTAMP *makefile_mtimes = 0; |
1656 |
unsigned int mm_idx = 0; |
1657 |
char **nargv = argv; |
1658 |
int nargc = argc; |
1659 |
int orig_db_level = db_level; |
1660 |
|
1661 |
if (! ISDB (DB_MAKEFILES)) |
1662 |
db_level = DB_NONE; |
1663 |
|
1664 |
DB (DB_BASIC, (_("Updating makefiles....\n"))); |
1665 |
|
1666 |
/* Remove any makefiles we don't want to try to update. |
1667 |
Also record the current modtimes so we can compare them later. */ |
1668 |
{ |
1669 |
register struct dep *d, *last; |
1670 |
last = 0; |
1671 |
d = read_makefiles; |
1672 |
while (d != 0) |
1673 |
{ |
1674 |
register struct file *f = d->file; |
1675 |
if (f->double_colon) |
1676 |
for (f = f->double_colon; f != NULL; f = f->prev) |
1677 |
{ |
1678 |
if (f->deps == 0 && f->cmds != 0) |
1679 |
{ |
1680 |
/* This makefile is a :: target with commands, but |
1681 |
no dependencies. So, it will always be remade. |
1682 |
This might well cause an infinite loop, so don't |
1683 |
try to remake it. (This will only happen if |
1684 |
your makefiles are written exceptionally |
1685 |
stupidly; but if you work for Athena, that's how |
1686 |
you write your makefiles.) */ |
1687 |
|
1688 |
DB (DB_VERBOSE, |
1689 |
(_("Makefile `%s' might loop; not remaking it.\n"), |
1690 |
f->name)); |
1691 |
|
1692 |
if (last == 0) |
1693 |
read_makefiles = d->next; |
1694 |
else |
1695 |
last->next = d->next; |
1696 |
|
1697 |
/* Free the storage. */ |
1698 |
free ((char *) d); |
1699 |
|
1700 |
d = last == 0 ? read_makefiles : last->next; |
1701 |
|
1702 |
break; |
1703 |
} |
1704 |
} |
1705 |
if (f == NULL || !f->double_colon) |
1706 |
{ |
1707 |
makefile_mtimes = (FILE_TIMESTAMP *) |
1708 |
xrealloc ((char *) makefile_mtimes, |
1709 |
(mm_idx + 1) * sizeof (FILE_TIMESTAMP)); |
1710 |
makefile_mtimes[mm_idx++] = file_mtime_no_search (d->file); |
1711 |
last = d; |
1712 |
d = d->next; |
1713 |
} |
1714 |
} |
1715 |
} |
1716 |
|
1717 |
/* Set up `MAKEFLAGS' specially while remaking makefiles. */ |
1718 |
define_makeflags (1, 1); |
1719 |
|
1720 |
switch (update_goal_chain (read_makefiles, 1)) |
1721 |
{ |
1722 |
case 1: |
1723 |
/* The only way this can happen is if the user specified -q and asked |
1724 |
* for one of the makefiles to be remade as a target on the command |
1725 |
* line. Since we're not actually updating anything with -q we can |
1726 |
* treat this as "did nothing". |
1727 |
*/ |
1728 |
|
1729 |
case -1: |
1730 |
/* Did nothing. */ |
1731 |
break; |
1732 |
|
1733 |
case 2: |
1734 |
/* Failed to update. Figure out if we care. */ |
1735 |
{ |
1736 |
/* Nonzero if any makefile was successfully remade. */ |
1737 |
int any_remade = 0; |
1738 |
/* Nonzero if any makefile we care about failed |
1739 |
in updating or could not be found at all. */ |
1740 |
int any_failed = 0; |
1741 |
register unsigned int i; |
1742 |
struct dep *d; |
1743 |
|
1744 |
for (i = 0, d = read_makefiles; d != 0; ++i, d = d->next) |
1745 |
{ |
1746 |
/* Reset the considered flag; we may need to look at the file |
1747 |
again to print an error. */ |
1748 |
d->file->considered = 0; |
1749 |
|
1750 |
if (d->file->updated) |
1751 |
{ |
1752 |
/* This makefile was updated. */ |
1753 |
if (d->file->update_status == 0) |
1754 |
{ |
1755 |
/* It was successfully updated. */ |
1756 |
any_remade |= (file_mtime_no_search (d->file) |
1757 |
!= makefile_mtimes[i]); |
1758 |
} |
1759 |
else if (! (d->changed & RM_DONTCARE)) |
1760 |
{ |
1761 |
FILE_TIMESTAMP mtime; |
1762 |
/* The update failed and this makefile was not |
1763 |
from the MAKEFILES variable, so we care. */ |
1764 |
error (NILF, _("Failed to remake makefile `%s'."), |
1765 |
d->file->name); |
1766 |
mtime = file_mtime_no_search (d->file); |
1767 |
any_remade |= (mtime != NONEXISTENT_MTIME |
1768 |
&& mtime != makefile_mtimes[i]); |
1769 |
} |
1770 |
} |
1771 |
else |
1772 |
/* This makefile was not found at all. */ |
1773 |
if (! (d->changed & RM_DONTCARE)) |
1774 |
{ |
1775 |
/* This is a makefile we care about. See how much. */ |
1776 |
if (d->changed & RM_INCLUDED) |
1777 |
/* An included makefile. We don't need |
1778 |
to die, but we do want to complain. */ |
1779 |
error (NILF, |
1780 |
_("Included makefile `%s' was not found."), |
1781 |
dep_name (d)); |
1782 |
else |
1783 |
{ |
1784 |
/* A normal makefile. We must die later. */ |
1785 |
error (NILF, _("Makefile `%s' was not found"), |
1786 |
dep_name (d)); |
1787 |
any_failed = 1; |
1788 |
} |
1789 |
} |
1790 |
} |
1791 |
/* Reset this to empty so we get the right error message below. */ |
1792 |
read_makefiles = 0; |
1793 |
|
1794 |
if (any_remade) |
1795 |
goto re_exec; |
1796 |
if (any_failed) |
1797 |
die (2); |
1798 |
break; |
1799 |
} |
1800 |
|
1801 |
case 0: |
1802 |
re_exec: |
1803 |
/* Updated successfully. Re-exec ourselves. */ |
1804 |
|
1805 |
remove_intermediates (0); |
1806 |
|
1807 |
if (print_data_base_flag) |
1808 |
print_data_base (); |
1809 |
|
1810 |
log_working_directory (0); |
1811 |
|
1812 |
if (makefiles != 0) |
1813 |
{ |
1814 |
/* These names might have changed. */ |
1815 |
register unsigned int i, j = 0; |
1816 |
for (i = 1; i < argc; ++i) |
1817 |
if (strneq (argv[i], "-f", 2)) /* XXX */ |
1818 |
{ |
1819 |
char *p = &argv[i][2]; |
1820 |
if (*p == '\0') |
1821 |
argv[++i] = makefiles->list[j]; |
1822 |
else |
1823 |
argv[i] = concat ("-f", makefiles->list[j], ""); |
1824 |
++j; |
1825 |
} |
1826 |
} |
1827 |
|
1828 |
/* Add -o option for the stdin temporary file, if necessary. */ |
1829 |
if (stdin_nm) |
1830 |
{ |
1831 |
nargv = (char **) xmalloc ((nargc + 2) * sizeof (char *)); |
1832 |
bcopy ((char *) argv, (char *) nargv, argc * sizeof (char *)); |
1833 |
nargv[nargc++] = concat ("-o", stdin_nm, ""); |
1834 |
nargv[nargc] = 0; |
1835 |
} |
1836 |
|
1837 |
if (directories != 0 && directories->idx > 0) |
1838 |
{ |
1839 |
char bad; |
1840 |
if (directory_before_chdir != 0) |
1841 |
{ |
1842 |
if (chdir (directory_before_chdir) < 0) |
1843 |
{ |
1844 |
perror_with_name ("chdir", ""); |
1845 |
bad = 1; |
1846 |
} |
1847 |
else |
1848 |
bad = 0; |
1849 |
} |
1850 |
else |
1851 |
bad = 1; |
1852 |
if (bad) |
1853 |
fatal (NILF, _("Couldn't change back to original directory.")); |
1854 |
} |
1855 |
|
1856 |
#ifndef _AMIGA |
1857 |
for (p = environ; *p != 0; ++p) |
1858 |
if ((*p)[MAKELEVEL_LENGTH] == '=' |
1859 |
&& strneq (*p, MAKELEVEL_NAME, MAKELEVEL_LENGTH)) |
1860 |
{ |
1861 |
/* The SGI compiler apparently can't understand |
1862 |
the concept of storing the result of a function |
1863 |
in something other than a local variable. */ |
1864 |
char *sgi_loses; |
1865 |
sgi_loses = (char *) alloca (40); |
1866 |
*p = sgi_loses; |
1867 |
sprintf (*p, "%s=%u", MAKELEVEL_NAME, makelevel); |
1868 |
break; |
1869 |
} |
1870 |
#else /* AMIGA */ |
1871 |
{ |
1872 |
char buffer[256]; |
1873 |
int len; |
1874 |
|
1875 |
len = GetVar (MAKELEVEL_NAME, buffer, sizeof (buffer), GVF_GLOBAL_ONLY); |
1876 |
|
1877 |
if (len != -1) |
1878 |
{ |
1879 |
sprintf (buffer, "%u", makelevel); |
1880 |
SetVar (MAKELEVEL_NAME, buffer, -1, GVF_GLOBAL_ONLY); |
1881 |
} |
1882 |
} |
1883 |
#endif |
1884 |
|
1885 |
if (ISDB (DB_BASIC)) |
1886 |
{ |
1887 |
char **p; |
1888 |
fputs (_("Re-executing:"), stdout); |
1889 |
for (p = nargv; *p != 0; ++p) |
1890 |
printf (" %s", *p); |
1891 |
putchar ('\n'); |
1892 |
} |
1893 |
|
1894 |
fflush (stdout); |
1895 |
fflush (stderr); |
1896 |
|
1897 |
/* Close the dup'd jobserver pipe if we opened one. */ |
1898 |
if (job_rfd >= 0) |
1899 |
close (job_rfd); |
1900 |
|
1901 |
#ifdef _AMIGA |
1902 |
exec_command (nargv); |
1903 |
exit (0); |
1904 |
#elif defined (__EMX__) |
1905 |
{ |
1906 |
/* It is not possible to use execve() here because this |
1907 |
would cause the parent process to be terminated with |
1908 |
exit code 0 before the child process has been terminated. |
1909 |
Therefore it may be the best solution simply to spawn the |
1910 |
child process including all file handles and to wait for its |
1911 |
termination. */ |
1912 |
int pid; |
1913 |
int status; |
1914 |
pid = child_execute_job(0, 1, nargv, environ); |
1915 |
|
1916 |
/* is this loop really necessary? */ |
1917 |
do { |
1918 |
pid = wait(&status); |
1919 |
} while(pid <= 0); |
1920 |
/* use the exit code of the child process */ |
1921 |
exit(WIFEXITED(status) ? WEXITSTATUS(status) : EXIT_FAILURE); |
1922 |
} |
1923 |
#else |
1924 |
exec_command (nargv, environ); |
1925 |
#endif |
1926 |
/* NOTREACHED */ |
1927 |
|
1928 |
default: |
1929 |
#define BOGUS_UPDATE_STATUS 0 |
1930 |
assert (BOGUS_UPDATE_STATUS); |
1931 |
break; |
1932 |
} |
1933 |
|
1934 |
db_level = orig_db_level; |
1935 |
} |
1936 |
|
1937 |
/* Set up `MAKEFLAGS' again for the normal targets. */ |
1938 |
define_makeflags (1, 0); |
1939 |
|
1940 |
/* If there is a temp file from reading a makefile from stdin, get rid of |
1941 |
it now. */ |
1942 |
if (stdin_nm && unlink (stdin_nm) < 0 && errno != ENOENT) |
1943 |
perror_with_name (_("unlink (temporary file): "), stdin_nm); |
1944 |
|
1945 |
{ |
1946 |
int status; |
1947 |
|
1948 |
/* If there were no command-line goals, use the default. */ |
1949 |
if (goals == 0) |
1950 |
{ |
1951 |
if (default_goal_file != 0) |
1952 |
{ |
1953 |
goals = (struct dep *) xmalloc (sizeof (struct dep)); |
1954 |
goals->next = 0; |
1955 |
goals->name = 0; |
1956 |
goals->ignore_mtime = 0; |
1957 |
goals->file = default_goal_file; |
1958 |
} |
1959 |
} |
1960 |
else |
1961 |
lastgoal->next = 0; |
1962 |
|
1963 |
if (!goals) |
1964 |
{ |
1965 |
if (read_makefiles == 0) |
1966 |
fatal (NILF, _("No targets specified and no makefile found")); |
1967 |
|
1968 |
fatal (NILF, _("No targets")); |
1969 |
} |
1970 |
|
1971 |
/* Update the goals. */ |
1972 |
|
1973 |
DB (DB_BASIC, (_("Updating goal targets....\n"))); |
1974 |
|
1975 |
switch (update_goal_chain (goals, 0)) |
1976 |
{ |
1977 |
case -1: |
1978 |
/* Nothing happened. */ |
1979 |
case 0: |
1980 |
/* Updated successfully. */ |
1981 |
status = MAKE_SUCCESS; |
1982 |
break; |
1983 |
case 1: |
1984 |
/* We are under -q and would run some commands. */ |
1985 |
status = MAKE_TROUBLE; |
1986 |
break; |
1987 |
case 2: |
1988 |
/* Updating failed. POSIX.2 specifies exit status >1 for this; |
1989 |
but in VMS, there is only success and failure. */ |
1990 |
status = MAKE_FAILURE; |
1991 |
break; |
1992 |
default: |
1993 |
abort (); |
1994 |
} |
1995 |
|
1996 |
/* If we detected some clock skew, generate one last warning */ |
1997 |
if (clock_skew_detected) |
1998 |
error (NILF, |
1999 |
_("warning: Clock skew detected. Your build may be incomplete.")); |
2000 |
|
2001 |
/* Exit. */ |
2002 |
die (status); |
2003 |
} |
2004 |
|
2005 |
return 0; |
2006 |
} |
2007 |
|
2008 |
/* Parsing of arguments, decoding of switches. */ |
2009 |
|
2010 |
static char options[1 + sizeof (switches) / sizeof (switches[0]) * 3]; |
2011 |
static struct option long_options[(sizeof (switches) / sizeof (switches[0])) + |
2012 |
(sizeof (long_option_aliases) / |
2013 |
sizeof (long_option_aliases[0]))]; |
2014 |
|
2015 |
/* Fill in the string and vector for getopt. */ |
2016 |
static void |
2017 |
init_switches (void) |
2018 |
{ |
2019 |
register char *p; |
2020 |
register int c; |
2021 |
register unsigned int i; |
2022 |
|
2023 |
if (options[0] != '\0') |
2024 |
/* Already done. */ |
2025 |
return; |
2026 |
|
2027 |
p = options; |
2028 |
|
2029 |
/* Return switch and non-switch args in order, regardless of |
2030 |
POSIXLY_CORRECT. Non-switch args are returned as option 1. */ |
2031 |
*p++ = '-'; |
2032 |
|
2033 |
for (i = 0; switches[i].c != '\0'; ++i) |
2034 |
{ |
2035 |
long_options[i].name = (switches[i].long_name == 0 ? "" : |
2036 |
switches[i].long_name); |
2037 |
long_options[i].flag = 0; |
2038 |
long_options[i].val = switches[i].c; |
2039 |
if (short_option (switches[i].c)) |
2040 |
*p++ = switches[i].c; |
2041 |
switch (switches[i].type) |
2042 |
{ |
2043 |
case flag: |
2044 |
case flag_off: |
2045 |
case ignore: |
2046 |
long_options[i].has_arg = no_argument; |
2047 |
break; |
2048 |
|
2049 |
case string: |
2050 |
case positive_int: |
2051 |
case floating: |
2052 |
if (short_option (switches[i].c)) |
2053 |
*p++ = ':'; |
2054 |
if (switches[i].noarg_value != 0) |
2055 |
{ |
2056 |
if (short_option (switches[i].c)) |
2057 |
*p++ = ':'; |
2058 |
long_options[i].has_arg = optional_argument; |
2059 |
} |
2060 |
else |
2061 |
long_options[i].has_arg = required_argument; |
2062 |
break; |
2063 |
} |
2064 |
} |
2065 |
*p = '\0'; |
2066 |
for (c = 0; c < (sizeof (long_option_aliases) / |
2067 |
sizeof (long_option_aliases[0])); |
2068 |
++c) |
2069 |
long_options[i++] = long_option_aliases[c]; |
2070 |
long_options[i].name = 0; |
2071 |
} |
2072 |
|
2073 |
static void |
2074 |
handle_non_switch_argument (char *arg, int env) |
2075 |
{ |
2076 |
/* Non-option argument. It might be a variable definition. */ |
2077 |
struct variable *v; |
2078 |
if (arg[0] == '-' && arg[1] == '\0') |
2079 |
/* Ignore plain `-' for compatibility. */ |
2080 |
return; |
2081 |
v = try_variable_definition (0, arg, o_command, 0); |
2082 |
if (v != 0) |
2083 |
{ |
2084 |
/* It is indeed a variable definition. Record a pointer to |
2085 |
the variable for later use in define_makeflags. */ |
2086 |
struct command_variable *cv |
2087 |
= (struct command_variable *) xmalloc (sizeof (*cv)); |
2088 |
cv->variable = v; |
2089 |
cv->next = command_variables; |
2090 |
command_variables = cv; |
2091 |
} |
2092 |
else if (! env) |
2093 |
{ |
2094 |
/* Not an option or variable definition; it must be a goal |
2095 |
target! Enter it as a file and add it to the dep chain of |
2096 |
goals. */ |
2097 |
struct file *f = enter_command_line_file (arg); |
2098 |
f->cmd_target = 1; |
2099 |
|
2100 |
if (goals == 0) |
2101 |
{ |
2102 |
goals = (struct dep *) xmalloc (sizeof (struct dep)); |
2103 |
lastgoal = goals; |
2104 |
} |
2105 |
else |
2106 |
{ |
2107 |
lastgoal->next = (struct dep *) xmalloc (sizeof (struct dep)); |
2108 |
lastgoal = lastgoal->next; |
2109 |
} |
2110 |
lastgoal->name = 0; |
2111 |
lastgoal->file = f; |
2112 |
lastgoal->ignore_mtime = 0; |
2113 |
|
2114 |
{ |
2115 |
/* Add this target name to the MAKECMDGOALS variable. */ |
2116 |
struct variable *v; |
2117 |
char *value; |
2118 |
|
2119 |
v = lookup_variable ("MAKECMDGOALS", 12); |
2120 |
if (v == 0) |
2121 |
value = f->name; |
2122 |
else |
2123 |
{ |
2124 |
/* Paste the old and new values together */ |
2125 |
unsigned int oldlen, newlen; |
2126 |
|
2127 |
oldlen = strlen (v->value); |
2128 |
newlen = strlen (f->name); |
2129 |
value = (char *) alloca (oldlen + 1 + newlen + 1); |
2130 |
bcopy (v->value, value, oldlen); |
2131 |
value[oldlen] = ' '; |
2132 |
bcopy (f->name, &value[oldlen + 1], newlen + 1); |
2133 |
} |
2134 |
define_variable ("MAKECMDGOALS", 12, value, o_default, 0); |
2135 |
} |
2136 |
} |
2137 |
} |
2138 |
|
2139 |
/* Print a nice usage method. */ |
2140 |
|
2141 |
static void |
2142 |
print_usage (int bad) |
2143 |
{ |
2144 |
extern char *make_host; |
2145 |
const char *const *cpp; |
2146 |
FILE *usageto; |
2147 |
|
2148 |
if (print_version_flag) |
2149 |
print_version (); |
2150 |
|
2151 |
usageto = bad ? stderr : stdout; |
2152 |
|
2153 |
fprintf (usageto, _("Usage: %s [options] [target] ...\n"), program); |
2154 |
|
2155 |
for (cpp = usage; *cpp; ++cpp) |
2156 |
fputs (_(*cpp), usageto); |
2157 |
|
2158 |
if (!remote_description || *remote_description == '\0') |
2159 |
fprintf (usageto, _("\nThis program built for %s\n"), make_host); |
2160 |
else |
2161 |
fprintf (usageto, _("\nThis program built for %s (%s)\n"), |
2162 |
make_host, remote_description); |
2163 |
|
2164 |
fprintf (usageto, _("Report bugs to <bug-make@gnu.org>\n")); |
2165 |
} |
2166 |
|
2167 |
/* Decode switches from ARGC and ARGV. |
2168 |
They came from the environment if ENV is nonzero. */ |
2169 |
|
2170 |
static void |
2171 |
decode_switches (int argc, char **argv, int env) |
2172 |
{ |
2173 |
int bad = 0; |
2174 |
register const struct command_switch *cs; |
2175 |
register struct stringlist *sl; |
2176 |
register int c; |
2177 |
|
2178 |
/* getopt does most of the parsing for us. |
2179 |
First, get its vectors set up. */ |
2180 |
|
2181 |
init_switches (); |
2182 |
|
2183 |
/* Let getopt produce error messages for the command line, |
2184 |
but not for options from the environment. */ |
2185 |
opterr = !env; |
2186 |
/* Reset getopt's state. */ |
2187 |
optind = 0; |
2188 |
|
2189 |
while (optind < argc) |
2190 |
{ |
2191 |
/* Parse the next argument. */ |
2192 |
c = getopt_long (argc, argv, options, long_options, (int *) 0); |
2193 |
if (c == EOF) |
2194 |
/* End of arguments, or "--" marker seen. */ |
2195 |
break; |
2196 |
else if (c == 1) |
2197 |
/* An argument not starting with a dash. */ |
2198 |
handle_non_switch_argument (optarg, env); |
2199 |
else if (c == '?') |
2200 |
/* Bad option. We will print a usage message and die later. |
2201 |
But continue to parse the other options so the user can |
2202 |
see all he did wrong. */ |
2203 |
bad = 1; |
2204 |
else |
2205 |
for (cs = switches; cs->c != '\0'; ++cs) |
2206 |
if (cs->c == c) |
2207 |
{ |
2208 |
/* Whether or not we will actually do anything with |
2209 |
this switch. We test this individually inside the |
2210 |
switch below rather than just once outside it, so that |
2211 |
options which are to be ignored still consume args. */ |
2212 |
int doit = !env || cs->env; |
2213 |
|
2214 |
switch (cs->type) |
2215 |
{ |
2216 |
default: |
2217 |
abort (); |
2218 |
|
2219 |
case ignore: |
2220 |
break; |
2221 |
|
2222 |
case flag: |
2223 |
case flag_off: |
2224 |
if (doit) |
2225 |
*(int *) cs->value_ptr = cs->type == flag; |
2226 |
break; |
2227 |
|
2228 |
case string: |
2229 |
if (!doit) |
2230 |
break; |
2231 |
|
2232 |
if (optarg == 0) |
2233 |
optarg = cs->noarg_value; |
2234 |
|
2235 |
sl = *(struct stringlist **) cs->value_ptr; |
2236 |
if (sl == 0) |
2237 |
{ |
2238 |
sl = (struct stringlist *) |
2239 |
xmalloc (sizeof (struct stringlist)); |
2240 |
sl->max = 5; |
2241 |
sl->idx = 0; |
2242 |
sl->list = (char **) xmalloc (5 * sizeof (char *)); |
2243 |
*(struct stringlist **) cs->value_ptr = sl; |
2244 |
} |
2245 |
else if (sl->idx == sl->max - 1) |
2246 |
{ |
2247 |
sl->max += 5; |
2248 |
sl->list = (char **) |
2249 |
xrealloc ((char *) sl->list, |
2250 |
sl->max * sizeof (char *)); |
2251 |
} |
2252 |
sl->list[sl->idx++] = optarg; |
2253 |
sl->list[sl->idx] = 0; |
2254 |
break; |
2255 |
|
2256 |
case positive_int: |
2257 |
/* See if we have an option argument; if we do require that |
2258 |
it's all digits, not something like "10foo". */ |
2259 |
if (optarg == 0 && argc > optind) |
2260 |
{ |
2261 |
const char *cp; |
2262 |
for (cp=argv[optind]; ISDIGIT (cp[0]); ++cp) |
2263 |
; |
2264 |
if (cp[0] == '\0') |
2265 |
optarg = argv[optind++]; |
2266 |
} |
2267 |
|
2268 |
if (!doit) |
2269 |
break; |
2270 |
|
2271 |
if (optarg != 0) |
2272 |
{ |
2273 |
int i = atoi (optarg); |
2274 |
const char *cp; |
2275 |
|
2276 |
/* Yes, I realize we're repeating this in some cases. */ |
2277 |
for (cp = optarg; ISDIGIT (cp[0]); ++cp) |
2278 |
; |
2279 |
|
2280 |
if (i < 1 || cp[0] != '\0') |
2281 |
{ |
2282 |
error (NILF, _("the `-%c' option requires a positive integral argument"), |
2283 |
cs->c); |
2284 |
bad = 1; |
2285 |
} |
2286 |
else |
2287 |
*(unsigned int *) cs->value_ptr = i; |
2288 |
} |
2289 |
else |
2290 |
*(unsigned int *) cs->value_ptr |
2291 |
= *(unsigned int *) cs->noarg_value; |
2292 |
break; |
2293 |
|
2294 |
#ifndef NO_FLOAT |
2295 |
case floating: |
2296 |
if (optarg == 0 && optind < argc |
2297 |
&& (ISDIGIT (argv[optind][0]) || argv[optind][0] == '.')) |
2298 |
optarg = argv[optind++]; |
2299 |
|
2300 |
if (doit) |
2301 |
*(double *) cs->value_ptr |
2302 |
= (optarg != 0 ? atof (optarg) |
2303 |
: *(double *) cs->noarg_value); |
2304 |
|
2305 |
break; |
2306 |
#endif |
2307 |
} |
2308 |
|
2309 |
/* We've found the switch. Stop looking. */ |
2310 |
break; |
2311 |
} |
2312 |
} |
2313 |
|
2314 |
/* There are no more options according to getting getopt, but there may |
2315 |
be some arguments left. Since we have asked for non-option arguments |
2316 |
to be returned in order, this only happens when there is a "--" |
2317 |
argument to prevent later arguments from being options. */ |
2318 |
while (optind < argc) |
2319 |
handle_non_switch_argument (argv[optind++], env); |
2320 |
|
2321 |
|
2322 |
if (!env && (bad || print_usage_flag)) |
2323 |
{ |
2324 |
print_usage (bad); |
2325 |
die (bad ? 2 : 0); |
2326 |
} |
2327 |
} |
2328 |
|
2329 |
/* Decode switches from environment variable ENVAR (which is LEN chars long). |
2330 |
We do this by chopping the value into a vector of words, prepending a |
2331 |
dash to the first word if it lacks one, and passing the vector to |
2332 |
decode_switches. */ |
2333 |
|
2334 |
static void |
2335 |
decode_env_switches (char *envar, unsigned int len) |
2336 |
{ |
2337 |
char *varref = (char *) alloca (2 + len + 2); |
2338 |
char *value, *p; |
2339 |
int argc; |
2340 |
char **argv; |
2341 |
|
2342 |
/* Get the variable's value. */ |
2343 |
varref[0] = '$'; |
2344 |
varref[1] = '('; |
2345 |
bcopy (envar, &varref[2], len); |
2346 |
varref[2 + len] = ')'; |
2347 |
varref[2 + len + 1] = '\0'; |
2348 |
value = variable_expand (varref); |
2349 |
|
2350 |
/* Skip whitespace, and check for an empty value. */ |
2351 |
value = next_token (value); |
2352 |
len = strlen (value); |
2353 |
if (len == 0) |
2354 |
return; |
2355 |
|
2356 |
/* Allocate a vector that is definitely big enough. */ |
2357 |
argv = (char **) alloca ((1 + len + 1) * sizeof (char *)); |
2358 |
|
2359 |
/* Allocate a buffer to copy the value into while we split it into words |
2360 |
and unquote it. We must use permanent storage for this because |
2361 |
decode_switches may store pointers into the passed argument words. */ |
2362 |
p = (char *) xmalloc (2 * len); |
2363 |
|
2364 |
/* getopt will look at the arguments starting at ARGV[1]. |
2365 |
Prepend a spacer word. */ |
2366 |
argv[0] = 0; |
2367 |
argc = 1; |
2368 |
argv[argc] = p; |
2369 |
while (*value != '\0') |
2370 |
{ |
2371 |
if (*value == '\\' && value[1] != '\0') |
2372 |
++value; /* Skip the backslash. */ |
2373 |
else if (isblank ((unsigned char)*value)) |
2374 |
{ |
2375 |
/* End of the word. */ |
2376 |
*p++ = '\0'; |
2377 |
argv[++argc] = p; |
2378 |
do |
2379 |
++value; |
2380 |
while (isblank ((unsigned char)*value)); |
2381 |
continue; |
2382 |
} |
2383 |
*p++ = *value++; |
2384 |
} |
2385 |
*p = '\0'; |
2386 |
argv[++argc] = 0; |
2387 |
|
2388 |
if (argv[1][0] != '-' && strchr (argv[1], '=') == 0) |
2389 |
/* The first word doesn't start with a dash and isn't a variable |
2390 |
definition. Add a dash and pass it along to decode_switches. We |
2391 |
need permanent storage for this in case decode_switches saves |
2392 |
pointers into the value. */ |
2393 |
argv[1] = concat ("-", argv[1], ""); |
2394 |
|
2395 |
/* Parse those words. */ |
2396 |
decode_switches (argc, argv, 1); |
2397 |
} |
2398 |
|
2399 |
/* Quote the string IN so that it will be interpreted as a single word with |
2400 |
no magic by decode_env_switches; also double dollar signs to avoid |
2401 |
variable expansion in make itself. Write the result into OUT, returning |
2402 |
the address of the next character to be written. |
2403 |
Allocating space for OUT twice the length of IN is always sufficient. */ |
2404 |
|
2405 |
static char * |
2406 |
quote_for_env (char *out, char *in) |
2407 |
{ |
2408 |
while (*in != '\0') |
2409 |
{ |
2410 |
if (*in == '$') |
2411 |
*out++ = '$'; |
2412 |
else if (isblank ((unsigned char)*in) || *in == '\\') |
2413 |
*out++ = '\\'; |
2414 |
*out++ = *in++; |
2415 |
} |
2416 |
|
2417 |
return out; |
2418 |
} |
2419 |
|
2420 |
/* Define the MAKEFLAGS and MFLAGS variables to reflect the settings of the |
2421 |
command switches. Include options with args if ALL is nonzero. |
2422 |
Don't include options with the `no_makefile' flag set if MAKEFILE. */ |
2423 |
|
2424 |
static void |
2425 |
define_makeflags (int all, int makefile) |
2426 |
{ |
2427 |
static const char ref[] = "$(MAKEOVERRIDES)"; |
2428 |
static const char posixref[] = "$(-*-command-variables-*-)"; |
2429 |
register const struct command_switch *cs; |
2430 |
char *flagstring; |
2431 |
register char *p; |
2432 |
unsigned int words; |
2433 |
struct variable *v; |
2434 |
|
2435 |
/* We will construct a linked list of `struct flag's describing |
2436 |
all the flags which need to go in MAKEFLAGS. Then, once we |
2437 |
know how many there are and their lengths, we can put them all |
2438 |
together in a string. */ |
2439 |
|
2440 |
struct flag |
2441 |
{ |
2442 |
struct flag *next; |
2443 |
const struct command_switch *cs; |
2444 |
char *arg; |
2445 |
}; |
2446 |
struct flag *flags = 0; |
2447 |
unsigned int flagslen = 0; |
2448 |
#define ADD_FLAG(ARG, LEN) \ |
2449 |
do { \ |
2450 |
struct flag *new = (struct flag *) alloca (sizeof (struct flag)); \ |
2451 |
new->cs = cs; \ |
2452 |
new->arg = (ARG); \ |
2453 |
new->next = flags; \ |
2454 |
flags = new; \ |
2455 |
if (new->arg == 0) \ |
2456 |
++flagslen; /* Just a single flag letter. */ \ |
2457 |
else \ |
2458 |
flagslen += 1 + 1 + 1 + 1 + 3 * (LEN); /* " -x foo" */ \ |
2459 |
if (!short_option (cs->c)) \ |
2460 |
/* This switch has no single-letter version, so we use the long. */ \ |
2461 |
flagslen += 2 + strlen (cs->long_name); \ |
2462 |
} while (0) |
2463 |
|
2464 |
for (cs = switches; cs->c != '\0'; ++cs) |
2465 |
if (cs->toenv && (!makefile || !cs->no_makefile)) |
2466 |
switch (cs->type) |
2467 |
{ |
2468 |
default: |
2469 |
abort (); |
2470 |
|
2471 |
case ignore: |
2472 |
break; |
2473 |
|
2474 |
case flag: |
2475 |
case flag_off: |
2476 |
if (!*(int *) cs->value_ptr == (cs->type == flag_off) |
2477 |
&& (cs->default_value == 0 |
2478 |
|| *(int *) cs->value_ptr != *(int *) cs->default_value)) |
2479 |
ADD_FLAG (0, 0); |
2480 |
break; |
2481 |
|
2482 |
case positive_int: |
2483 |
if (all) |
2484 |
{ |
2485 |
if ((cs->default_value != 0 |
2486 |
&& (*(unsigned int *) cs->value_ptr |
2487 |
== *(unsigned int *) cs->default_value))) |
2488 |
break; |
2489 |
else if (cs->noarg_value != 0 |
2490 |
&& (*(unsigned int *) cs->value_ptr == |
2491 |
*(unsigned int *) cs->noarg_value)) |
2492 |
ADD_FLAG ("", 0); /* Optional value omitted; see below. */ |
2493 |
else if (cs->c == 'j') |
2494 |
/* Special case for `-j'. */ |
2495 |
ADD_FLAG ("1", 1); |
2496 |
else |
2497 |
{ |
2498 |
char *buf = (char *) alloca (30); |
2499 |
sprintf (buf, "%u", *(unsigned int *) cs->value_ptr); |
2500 |
ADD_FLAG (buf, strlen (buf)); |
2501 |
} |
2502 |
} |
2503 |
break; |
2504 |
|
2505 |
#ifndef NO_FLOAT |
2506 |
case floating: |
2507 |
if (all) |
2508 |
{ |
2509 |
if (cs->default_value != 0 |
2510 |
&& (*(double *) cs->value_ptr |
2511 |
== *(double *) cs->default_value)) |
2512 |
break; |
2513 |
else if (cs->noarg_value != 0 |
2514 |
&& (*(double *) cs->value_ptr |
2515 |
== *(double *) cs->noarg_value)) |
2516 |
ADD_FLAG ("", 0); /* Optional value omitted; see below. */ |
2517 |
else |
2518 |
{ |
2519 |
char *buf = (char *) alloca (100); |
2520 |
sprintf (buf, "%g", *(double *) cs->value_ptr); |
2521 |
ADD_FLAG (buf, strlen (buf)); |
2522 |
} |
2523 |
} |
2524 |
break; |
2525 |
#endif |
2526 |
|
2527 |
case string: |
2528 |
if (all) |
2529 |
{ |
2530 |
struct stringlist *sl = *(struct stringlist **) cs->value_ptr; |
2531 |
if (sl != 0) |
2532 |
{ |
2533 |
/* Add the elements in reverse order, because |
2534 |
all the flags get reversed below; and the order |
2535 |
matters for some switches (like -I). */ |
2536 |
register unsigned int i = sl->idx; |
2537 |
while (i-- > 0) |
2538 |
ADD_FLAG (sl->list[i], strlen (sl->list[i])); |
2539 |
} |
2540 |
} |
2541 |
break; |
2542 |
} |
2543 |
|
2544 |
flagslen += 4 + sizeof posixref; /* Four more for the possible " -- ". */ |
2545 |
|
2546 |
#undef ADD_FLAG |
2547 |
|
2548 |
/* Construct the value in FLAGSTRING. |
2549 |
We allocate enough space for a preceding dash and trailing null. */ |
2550 |
flagstring = (char *) alloca (1 + flagslen + 1); |
2551 |
bzero (flagstring, 1 + flagslen + 1); |
2552 |
p = flagstring; |
2553 |
words = 1; |
2554 |
*p++ = '-'; |
2555 |
while (flags != 0) |
2556 |
{ |
2557 |
/* Add the flag letter or name to the string. */ |
2558 |
if (short_option (flags->cs->c)) |
2559 |
*p++ = flags->cs->c; |
2560 |
else |
2561 |
{ |
2562 |
if (*p != '-') |
2563 |
{ |
2564 |
*p++ = ' '; |
2565 |
*p++ = '-'; |
2566 |
} |
2567 |
*p++ = '-'; |
2568 |
strcpy (p, flags->cs->long_name); |
2569 |
p += strlen (p); |
2570 |
} |
2571 |
if (flags->arg != 0) |
2572 |
{ |
2573 |
/* A flag that takes an optional argument which in this case is |
2574 |
omitted is specified by ARG being "". We must distinguish |
2575 |
because a following flag appended without an intervening " -" |
2576 |
is considered the arg for the first. */ |
2577 |
if (flags->arg[0] != '\0') |
2578 |
{ |
2579 |
/* Add its argument too. */ |
2580 |
*p++ = !short_option (flags->cs->c) ? '=' : ' '; |
2581 |
p = quote_for_env (p, flags->arg); |
2582 |
} |
2583 |
++words; |
2584 |
/* Write a following space and dash, for the next flag. */ |
2585 |
*p++ = ' '; |
2586 |
*p++ = '-'; |
2587 |
} |
2588 |
else if (!short_option (flags->cs->c)) |
2589 |
{ |
2590 |
++words; |
2591 |
/* Long options must each go in their own word, |
2592 |
so we write the following space and dash. */ |
2593 |
*p++ = ' '; |
2594 |
*p++ = '-'; |
2595 |
} |
2596 |
flags = flags->next; |
2597 |
} |
2598 |
|
2599 |
/* Define MFLAGS before appending variable definitions. */ |
2600 |
|
2601 |
if (p == &flagstring[1]) |
2602 |
/* No flags. */ |
2603 |
flagstring[0] = '\0'; |
2604 |
else if (p[-1] == '-') |
2605 |
{ |
2606 |
/* Kill the final space and dash. */ |
2607 |
p -= 2; |
2608 |
*p = '\0'; |
2609 |
} |
2610 |
else |
2611 |
/* Terminate the string. */ |
2612 |
*p = '\0'; |
2613 |
|
2614 |
/* Since MFLAGS is not parsed for flags, there is no reason to |
2615 |
override any makefile redefinition. */ |
2616 |
(void) define_variable ("MFLAGS", 6, flagstring, o_env, 1); |
2617 |
|
2618 |
if (all && command_variables != 0) |
2619 |
{ |
2620 |
/* Now write a reference to $(MAKEOVERRIDES), which contains all the |
2621 |
command-line variable definitions. */ |
2622 |
|
2623 |
if (p == &flagstring[1]) |
2624 |
/* No flags written, so elide the leading dash already written. */ |
2625 |
p = flagstring; |
2626 |
else |
2627 |
{ |
2628 |
/* Separate the variables from the switches with a "--" arg. */ |
2629 |
if (p[-1] != '-') |
2630 |
{ |
2631 |
/* We did not already write a trailing " -". */ |
2632 |
*p++ = ' '; |
2633 |
*p++ = '-'; |
2634 |
} |
2635 |
/* There is a trailing " -"; fill it out to " -- ". */ |
2636 |
*p++ = '-'; |
2637 |
*p++ = ' '; |
2638 |
} |
2639 |
|
2640 |
/* Copy in the string. */ |
2641 |
if (posix_pedantic) |
2642 |
{ |
2643 |
bcopy (posixref, p, sizeof posixref - 1); |
2644 |
p += sizeof posixref - 1; |
2645 |
} |
2646 |
else |
2647 |
{ |
2648 |
bcopy (ref, p, sizeof ref - 1); |
2649 |
p += sizeof ref - 1; |
2650 |
} |
2651 |
} |
2652 |
else if (p == &flagstring[1]) |
2653 |
{ |
2654 |
words = 0; |
2655 |
--p; |
2656 |
} |
2657 |
else if (p[-1] == '-') |
2658 |
/* Kill the final space and dash. */ |
2659 |
p -= 2; |
2660 |
/* Terminate the string. */ |
2661 |
*p = '\0'; |
2662 |
|
2663 |
v = define_variable ("MAKEFLAGS", 9, |
2664 |
/* If there are switches, omit the leading dash |
2665 |
unless it is a single long option with two |
2666 |
leading dashes. */ |
2667 |
&flagstring[(flagstring[0] == '-' |
2668 |
&& flagstring[1] != '-') |
2669 |
? 1 : 0], |
2670 |
/* This used to use o_env, but that lost when a |
2671 |
makefile defined MAKEFLAGS. Makefiles set |
2672 |
MAKEFLAGS to add switches, but we still want |
2673 |
to redefine its value with the full set of |
2674 |
switches. Of course, an override or command |
2675 |
definition will still take precedence. */ |
2676 |
o_file, 1); |
2677 |
if (! all) |
2678 |
/* The first time we are called, set MAKEFLAGS to always be exported. |
2679 |
We should not do this again on the second call, because that is |
2680 |
after reading makefiles which might have done `unexport MAKEFLAGS'. */ |
2681 |
v->export = v_export; |
2682 |
} |
2683 |
|
2684 |
/* Print version information. */ |
2685 |
|
2686 |
static void |
2687 |
print_version (void) |
2688 |
{ |
2689 |
static int printed_version = 0; |
2690 |
|
2691 |
char *precede = print_data_base_flag ? "# " : ""; |
2692 |
|
2693 |
if (printed_version) |
2694 |
/* Do it only once. */ |
2695 |
return; |
2696 |
|
2697 |
/* Print this untranslated. The coding standards recommend translating the |
2698 |
(C) to the copyright symbol, but this string is going to change every |
2699 |
year, and none of the rest of it should be translated (including the |
2700 |
word "Copyright", so it hardly seems worth it. */ |
2701 |
|
2702 |
printf ("%sGNU Make %s\n\ |
2703 |
%sCopyright (C) 2002 Free Software Foundation, Inc.\n", |
2704 |
precede, version_string, precede); |
2705 |
|
2706 |
printf (_("%sThis is free software; see the source for copying conditions.\n\ |
2707 |
%sThere is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A\n\ |
2708 |
%sPARTICULAR PURPOSE.\n"), |
2709 |
precede, precede, precede); |
2710 |
|
2711 |
printed_version = 1; |
2712 |
|
2713 |
/* Flush stdout so the user doesn't have to wait to see the |
2714 |
version information while things are thought about. */ |
2715 |
fflush (stdout); |
2716 |
} |
2717 |
|
2718 |
/* Print a bunch of information about this and that. */ |
2719 |
|
2720 |
static void |
2721 |
print_data_base (void) |
2722 |
{ |
2723 |
time_t when; |
2724 |
|
2725 |
when = time ((time_t *) 0); |
2726 |
printf (_("\n# Make data base, printed on %s"), ctime (&when)); |
2727 |
|
2728 |
print_variable_data_base (); |
2729 |
print_dir_data_base (); |
2730 |
print_rule_data_base (); |
2731 |
print_file_data_base (); |
2732 |
print_vpath_data_base (); |
2733 |
|
2734 |
when = time ((time_t *) 0); |
2735 |
printf (_("\n# Finished Make data base on %s\n"), ctime (&when)); |
2736 |
} |
2737 |
|
2738 |
/* Exit with STATUS, cleaning up as necessary. */ |
2739 |
|
2740 |
void |
2741 |
die (int status) |
2742 |
{ |
2743 |
static char dying = 0; |
2744 |
|
2745 |
if (!dying) |
2746 |
{ |
2747 |
int err; |
2748 |
|
2749 |
dying = 1; |
2750 |
|
2751 |
if (print_version_flag) |
2752 |
print_version (); |
2753 |
|
2754 |
/* Wait for children to die. */ |
2755 |
for (err = (status != 0); job_slots_used > 0; err = 0) |
2756 |
reap_children (1, err); |
2757 |
|
2758 |
/* Let the remote job module clean up its state. */ |
2759 |
remote_cleanup (); |
2760 |
|
2761 |
/* Remove the intermediate files. */ |
2762 |
remove_intermediates (0); |
2763 |
|
2764 |
if (print_data_base_flag) |
2765 |
print_data_base (); |
2766 |
|
2767 |
/* Try to move back to the original directory. This is essential on |
2768 |
MS-DOS (where there is really only one process), and on Unix it |
2769 |
puts core files in the original directory instead of the -C |
2770 |
directory. Must wait until after remove_intermediates(), or unlinks |
2771 |
of relative pathnames fail. */ |
2772 |
if (directory_before_chdir != 0) |
2773 |
chdir (directory_before_chdir); |
2774 |
|
2775 |
log_working_directory (0); |
2776 |
} |
2777 |
|
2778 |
exit (status); |
2779 |
} |
2780 |
|
2781 |
/* Write a message indicating that we've just entered or |
2782 |
left (according to ENTERING) the current directory. */ |
2783 |
|
2784 |
void |
2785 |
log_working_directory (int entering) |
2786 |
{ |
2787 |
static int entered = 0; |
2788 |
|
2789 |
/* Print nothing without the flag. Don't print the entering message |
2790 |
again if we already have. Don't print the leaving message if we |
2791 |
haven't printed the entering message. */ |
2792 |
if (! print_directory_flag || entering == entered) |
2793 |
return; |
2794 |
|
2795 |
entered = entering; |
2796 |
|
2797 |
if (print_data_base_flag) |
2798 |
fputs ("# ", stdout); |
2799 |
|
2800 |
/* Use entire sentences to give the translators a fighting chance. */ |
2801 |
|
2802 |
if (makelevel == 0) |
2803 |
if (starting_directory == 0) |
2804 |
if (entering) |
2805 |
printf (_("%s: Entering an unknown directory"), program); |
2806 |
else |
2807 |
printf (_("%s: Leaving an unknown directory"), program); |
2808 |
else |
2809 |
if (entering) |
2810 |
printf (_("%s: Entering directory `%s'\n"), |
2811 |
program, starting_directory); |
2812 |
else |
2813 |
printf (_("%s: Leaving directory `%s'\n"), |
2814 |
program, starting_directory); |
2815 |
else |
2816 |
if (starting_directory == 0) |
2817 |
if (entering) |
2818 |
printf (_("%s[%u]: Entering an unknown directory"), |
2819 |
program, makelevel); |
2820 |
else |
2821 |
printf (_("%s[%u]: Leaving an unknown directory"), |
2822 |
program, makelevel); |
2823 |
else |
2824 |
if (entering) |
2825 |
printf (_("%s[%u]: Entering directory `%s'\n"), |
2826 |
program, makelevel, starting_directory); |
2827 |
else |
2828 |
printf (_("%s[%u]: Leaving directory `%s'\n"), |
2829 |
program, makelevel, starting_directory); |
2830 |
} |