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131 lines
4.7 KiB
C
131 lines
4.7 KiB
C
/* Definitions of dependency data structures for GNU Make.
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Copyright (C) 1988-2017 Free Software Foundation, Inc.
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This file is part of GNU Make.
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GNU Make is free software; you can redistribute it and/or modify it under the
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terms of the GNU General Public License as published by the Free Software
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Foundation; either version 3 of the License, or (at your option) any later
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version.
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GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along with
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this program. If not, see <http://www.gnu.org/licenses/>. */
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/* Structure used in chains of names, for parsing and globbing. */
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#define NAMESEQ(_t) \
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_t *next; \
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const char *name
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struct nameseq
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{
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NAMESEQ (struct nameseq);
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};
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/* Flag bits for the second argument to 'read_makefile'.
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These flags are saved in the 'flags' field of each
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'struct goaldep' in the chain returned by 'read_all_makefiles'. */
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#define RM_NO_DEFAULT_GOAL (1 << 0) /* Do not set default goal. */
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#define RM_INCLUDED (1 << 1) /* Search makefile search path. */
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#define RM_DONTCARE (1 << 2) /* No error if it doesn't exist. */
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#define RM_NO_TILDE (1 << 3) /* Don't expand ~ in file name. */
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#define RM_NOFLAG 0
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/* Structure representing one dependency of a file.
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Each struct file's 'deps' points to a chain of these, through 'next'.
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'stem' is the stem for this dep line of static pattern rule or NULL. */
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#define DEP(_t) \
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NAMESEQ (_t); \
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struct file *file; \
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const char *stem; \
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unsigned short flags : 8; \
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unsigned short changed : 1; \
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unsigned short ignore_mtime : 1; \
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unsigned short staticpattern : 1; \
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unsigned short need_2nd_expansion : 1
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struct dep
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{
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DEP (struct dep);
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};
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/* Structure representing one goal.
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The goals to be built constitute a chain of these, chained through 'next'.
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'stem' is not used, but it's simpler to include and ignore it. */
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struct goaldep
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{
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DEP (struct goaldep);
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unsigned short error;
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floc floc;
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};
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/* Options for parsing lists of filenames. */
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#define PARSEFS_NONE 0x0000
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#define PARSEFS_NOSTRIP 0x0001
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#define PARSEFS_NOAR 0x0002
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#define PARSEFS_NOGLOB 0x0004
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#define PARSEFS_EXISTS 0x0008
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#define PARSEFS_NOCACHE 0x0010
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#define PARSE_FILE_SEQ(_s,_t,_c,_p,_f) \
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(_t *)parse_file_seq ((_s),sizeof (_t),(_c),(_p),(_f))
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#define PARSE_SIMPLE_SEQ(_s,_t) \
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(_t *)parse_file_seq ((_s),sizeof (_t),MAP_NUL,NULL,PARSEFS_NONE)
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#ifdef VMS
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void *parse_file_seq ();
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#else
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void *parse_file_seq (char **stringp, unsigned int size,
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int stopmap, const char *prefix, int flags);
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#endif
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char *tilde_expand (const char *name);
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#ifndef NO_ARCHIVES
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struct nameseq *ar_glob (const char *arname, const char *member_pattern, unsigned int size);
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#endif
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#define dep_name(d) ((d)->name ? (d)->name : (d)->file->name)
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#define alloc_seq_elt(_t) xcalloc (sizeof (_t))
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void free_ns_chain (struct nameseq *n);
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#if defined(MAKE_MAINTAINER_MODE) && defined(__GNUC__)
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/* Use inline to get real type-checking. */
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#define SI static inline
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SI struct nameseq *alloc_ns() { return alloc_seq_elt (struct nameseq); }
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SI struct dep *alloc_dep() { return alloc_seq_elt (struct dep); }
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SI struct goaldep *alloc_goaldep() { return alloc_seq_elt (struct goaldep); }
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SI void free_ns(struct nameseq *n) { free (n); }
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SI void free_dep(struct dep *d) { free_ns ((struct nameseq *)d); }
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SI void free_goaldep(struct goaldep *g) { free_dep ((struct dep *)g); }
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SI void free_dep_chain(struct dep *d) { free_ns_chain((struct nameseq *)d); }
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SI void free_goal_chain(struct goaldep *g) { free_dep_chain((struct dep *)g); }
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#else
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# define alloc_ns() alloc_seq_elt (struct nameseq)
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# define alloc_dep() alloc_seq_elt (struct dep)
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# define alloc_goaldep() alloc_seq_elt (struct goaldep)
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# define free_ns(_n) free (_n)
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# define free_dep(_d) free_ns (_d)
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# define free_goaldep(_g) free_dep (_g)
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# define free_dep_chain(_d) free_ns_chain ((struct nameseq *)(_d))
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# define free_goal_chain(_g) free_ns_chain ((struct nameseq *)(_g))
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#endif
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struct dep *copy_dep_chain (const struct dep *d);
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struct goaldep *read_all_makefiles (const char **makefiles);
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void eval_buffer (char *buffer, const floc *floc);
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enum update_status update_goal_chain (struct goaldep *goals);
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