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Diffstat (limited to 'dep.h')
| -rw-r--r-- | dep.h | 92 |
1 files changed, 92 insertions, 0 deletions
@@ -0,0 +1,92 @@ +/* Definitions of dependency data structures for GNU Make. +Copyright (C) 1988-2014 Free Software Foundation, Inc. +This file is part of GNU Make. + +GNU Make is free software; you can redistribute it and/or modify it under the +terms of the GNU General Public License as published by the Free Software +Foundation; either version 3 of the License, or (at your option) any later +version. + +GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY +WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR +A PARTICULAR PURPOSE. See the GNU General Public License for more details. + +You should have received a copy of the GNU General Public License along with +this program. If not, see <http://www.gnu.org/licenses/>. */ + +/* Flag bits for the second argument to 'read_makefile'. + These flags are saved in the 'changed' field of each + 'struct dep' in the chain returned by 'read_all_makefiles'. */ + +#define RM_NO_DEFAULT_GOAL (1 << 0) /* Do not set default goal. */ +#define RM_INCLUDED (1 << 1) /* Search makefile search path. */ +#define RM_DONTCARE (1 << 2) /* No error if it doesn't exist. */ +#define RM_NO_TILDE (1 << 3) /* Don't expand ~ in file name. */ +#define RM_NOFLAG 0 + +/* Structure representing one dependency of a file. + Each struct file's 'deps' points to a chain of these, + chained through the 'next'. 'stem' is the stem for this + dep line of static pattern rule or NULL. + + Note that the first two words of this match a struct nameseq. */ + +struct dep + { + struct dep *next; + const char *name; + const char *stem; + struct file *file; + unsigned int changed : 8; + unsigned int ignore_mtime : 1; + unsigned int staticpattern : 1; + unsigned int need_2nd_expansion : 1; + unsigned int dontcare : 1; + }; + + +/* Structure used in chains of names, for parsing and globbing. */ + +struct nameseq + { + struct nameseq *next; + const char *name; + }; + +#define PARSEFS_NONE 0x0000 +#define PARSEFS_NOSTRIP 0x0001 +#define PARSEFS_NOAR 0x0002 +#define PARSEFS_NOGLOB 0x0004 +#define PARSEFS_EXISTS 0x0008 +#define PARSEFS_NOCACHE 0x0010 + +#define PARSE_FILE_SEQ(_s,_t,_c,_p,_f) \ + (_t *)parse_file_seq ((_s),sizeof (_t),(_c),(_p),(_f)) +#define PARSE_SIMPLE_SEQ(_s,_t) \ + (_t *)parse_file_seq ((_s),sizeof (_t),MAP_NUL,NULL,PARSEFS_NONE) + +#ifdef VMS +void *parse_file_seq (); +#else +void *parse_file_seq (char **stringp, unsigned int size, + int stopmap, const char *prefix, int flags); +#endif + +char *tilde_expand (const char *name); + +#ifndef NO_ARCHIVES +struct nameseq *ar_glob (const char *arname, const char *member_pattern, unsigned int size); +#endif + +#define dep_name(d) ((d)->name == 0 ? (d)->file->name : (d)->name) + +#define alloc_dep() (xcalloc (sizeof (struct dep))) +#define free_ns(_n) free (_n) +#define free_dep(_d) free_ns (_d) + +struct dep *copy_dep_chain (const struct dep *d); +void free_dep_chain (struct dep *d); +void free_ns_chain (struct nameseq *n); +struct dep *read_all_makefiles (const char **makefiles); +void eval_buffer (char *buffer, const gmk_floc *floc); +enum update_status update_goal_chain (struct dep *goals); |