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87a5f98d24
Delay the generation of error messages for included files until we are sure that we can't rebuild that included file. * dep.h (struct dep): Don't reuse "changed"; make a separate field to keep "flags". Get rid of dontcare and use the flag. (struct goaldep): Create a new structure for goal prereqs that tracks an errno value and the floc where the include happened. Rework the structures to ensure they are supersets as expected. In maintainer mode with GCC, use inline to get type checking. * read.c (eval_makefile): Return a struct goaldep for the new makefile. Ensure errno is set properly to denote a failure. (read_all_makefiles): Switch to goaldep and check errno. (eval): Don't show included file errors; instead remember them. * remake.c (update_goal_chain): Set global variables to the current goaldep we're building, and the entire chain. (show_goal_error): Check if the current failure is a consequence of building an included makefile and if so print an error. (complain): Call show_goal_error() on rule failure. * job.c (child_error): Call show_goal_error() on child error. * main.c (main): Switch from struct dep to goaldep. * misc.c (free_dep_chain): Not used; make into a macro. * tests/scripts/features/include: Update and include new tests. * tests/scripts/options/dash-B, tests/scripts/options/dash-W, tests/scripts/options/print-directory, tests/scripts/variables/MAKE_RESTARTS: Update known-good-output.
132 lines
4.7 KiB
C
132 lines
4.7 KiB
C
/* Definitions of dependency data structures for GNU Make.
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Copyright (C) 1988-2016 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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gmk_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 gmk_floc *floc);
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enum update_status update_goal_chain (struct goaldep *goals);
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void show_goal_error ();
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