4edfa9085a
Previously, only one 'env' file could be specified. Later 'env' directives would overwrite earlier 'env' directives. This is inconsistent with every other file-accepting directives which process files in order, including hints. A caveat applies to both hints and env that isn't mentioned: they're concatenated in the order of appearance, so they're not actually applied in the way one might think by supplying: hints x hints y Hints in x will take precedence over same-name hints in y due to how the kernel processes them, stopping at the first line that matches the hint we're searching for. Future work will flip the order of concatenation so that later files may still properly override earlier files. In practice, this likely doesn't matter at all due to the nature of the beast.
223 lines
5.9 KiB
C
223 lines
5.9 KiB
C
/*-
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright (c) 1980, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)config.h 8.1 (Berkeley) 6/6/93
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* $FreeBSD$
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*/
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/*
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* Config.
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*/
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#include <sys/types.h>
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#include <sys/queue.h>
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#include <stdbool.h>
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#include <stdlib.h>
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#include <string.h>
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struct cfgfile {
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STAILQ_ENTRY(cfgfile) cfg_next;
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char *cfg_path;
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};
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STAILQ_HEAD(, cfgfile) cfgfiles;
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struct file_list {
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STAILQ_ENTRY(file_list) f_next;
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char *f_fn; /* the name */
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int f_type; /* type */
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u_char f_flags; /* see below */
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char *f_compilewith; /* special make rule if present */
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char *f_depends; /* additional dependencies */
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char *f_clean; /* File list to add to clean rule */
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char *f_warn; /* warning message */
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const char *f_objprefix; /* prefix string for object name */
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const char *f_srcprefix; /* source prefix such as $S/ */
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};
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struct files_name {
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char *f_name;
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STAILQ_ENTRY(files_name) f_next;
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};
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/*
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* Types.
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*/
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#define NORMAL 1
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#define PROFILING 3
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#define NODEPEND 4
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#define LOCAL 5
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#define DEVDONE 0x80000000
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#define TYPEMASK 0x7fffffff
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/*
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* Attributes (flags).
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*/
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#define NO_IMPLCT_RULE 1
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#define NO_OBJ 2
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#define BEFORE_DEPEND 4
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#define NOWERROR 16
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struct device {
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int d_done; /* processed */
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char *d_name; /* name of device (e.g. rk11) */
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#define UNKNOWN -2 /* -2 means not set yet */
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STAILQ_ENTRY(device) d_next; /* Next one in list */
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};
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struct config {
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char *s_sysname;
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};
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/*
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* Config has a global notion of which machine type is
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* being used. It uses the name of the machine in choosing
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* files and directories. Thus if the name of the machine is ``i386'',
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* it will build from ``Makefile.i386'' and use ``../i386/inline''
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* in the makerules, etc. machinearch is the global notion of the
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* MACHINE_ARCH for this MACHINE.
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*/
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char *machinename;
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char *machinearch;
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/*
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* For each machine, a set of CPU's may be specified as supported.
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* These and the options (below) are put in the C flags in the makefile.
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*/
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struct cputype {
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char *cpu_name;
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SLIST_ENTRY(cputype) cpu_next;
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};
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SLIST_HEAD(, cputype) cputype;
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/*
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* A set of options may also be specified which are like CPU types,
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* but which may also specify values for the options.
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* A separate set of options may be defined for make-style options.
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*/
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struct opt {
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char *op_name;
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char *op_value;
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int op_ownfile; /* true = own file, false = makefile */
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SLIST_ENTRY(opt) op_next;
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SLIST_ENTRY(opt) op_append;
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};
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SLIST_HEAD(opt_head, opt) opt, mkopt, rmopts;
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struct opt_list {
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char *o_name;
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char *o_file;
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int o_flags;
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#define OL_ALIAS 1
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SLIST_ENTRY(opt_list) o_next;
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};
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SLIST_HEAD(, opt_list) otab;
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struct envvar {
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char *env_str;
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bool env_is_file;
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STAILQ_ENTRY(envvar) envvar_next;
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};
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STAILQ_HEAD(envvar_head, envvar) envvars;
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struct hint {
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char *hint_name;
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STAILQ_ENTRY(hint) hint_next;
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};
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STAILQ_HEAD(hint_head, hint) hints;
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struct includepath {
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char *path;
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SLIST_ENTRY(includepath) path_next;
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};
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SLIST_HEAD(, includepath) includepath;
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/*
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* Tag present in the kernconf.tmpl template file. It's mandatory for those
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* two strings to be the same. Otherwise you'll get into trouble.
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*/
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#define KERNCONFTAG "%%KERNCONFFILE%%"
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/*
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* Faked option to note, that the configuration file has been taken from the
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* kernel file and inclusion of DEFAULTS etc.. isn't nessesery, because we
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* already have a list of all required devices.
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*/
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#define OPT_AUTOGEN "CONFIG_AUTOGENERATED"
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extern char *ident;
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extern char kernconfstr[];
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extern int do_trace;
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extern int envmode;
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extern int hintmode;
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extern int incignore;
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char *get_word(FILE *);
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char *get_quoted_word(FILE *);
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char *path(const char *);
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char *raisestr(char *);
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void remember(const char *);
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void moveifchanged(const char *, const char *);
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int yylex(void);
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void options(void);
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void makefile(void);
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void makeenv(void);
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void makehints(void);
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void headers(void);
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void cfgfile_add(const char *);
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void cfgfile_removeall(void);
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FILE *open_makefile_template(void);
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extern STAILQ_HEAD(device_head, device) dtab;
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extern char errbuf[80];
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extern int yyline;
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extern const char *yyfile;
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extern STAILQ_HEAD(file_list_head, file_list) ftab;
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extern STAILQ_HEAD(files_name_head, files_name) fntab;
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extern int profiling;
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extern int debugging;
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extern int found_defaults;
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extern int maxusers;
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extern char *PREFIX; /* Config file name - for error messages */
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extern char srcdir[]; /* root of the kernel source tree */
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#define eq(a,b) (!strcmp(a,b))
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#define ns(s) strdup(s)
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