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6ccf33cdbd
string into the strcache. As a side-effect, many more structure members and function arguments can/should be declared const. As mentioned in the changelog, unfortunately measurement shows that this change does not yet reduce memory. The problem is with secondary expansion: because of this we store all the prerequisites in the string cache twice. First we store the prerequisite string after initial expansion but before secondary expansion, then we store each individual file after secondary expansion and expand_deps(). I plan to change expand_deps() to be callable in either context (eval or snap_deps) then have non-second-expansion targets call expand_deps() during eval, so that we only need to store that dependency list once.
59 lines
2.2 KiB
C
59 lines
2.2 KiB
C
/* Definitions for using pattern rules in GNU Make.
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Copyright (C) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
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1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006 Free Software
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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 2, or (at your option) any later 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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GNU Make; see the file COPYING. If not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. */
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/* Structure used for pattern (implicit) rules. */
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struct rule
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{
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struct rule *next;
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const char **targets; /* Targets of the rule. */
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unsigned int *lens; /* Lengths of each target. */
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const char **suffixes; /* Suffixes (after `%') of each target. */
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struct dep *deps; /* Dependencies of the rule. */
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struct commands *cmds; /* Commands to execute. */
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unsigned short num; /* Number of targets. */
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char terminal; /* If terminal (double-colon). */
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char in_use; /* If in use by a parent pattern_search. */
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};
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/* For calling install_pattern_rule. */
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struct pspec
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{
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char *target, *dep, *commands;
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};
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extern struct rule *pattern_rules;
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extern struct rule *last_pattern_rule;
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extern unsigned int num_pattern_rules;
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extern unsigned int max_pattern_deps;
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extern unsigned int max_pattern_targets;
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extern unsigned int max_pattern_dep_length;
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extern struct file *suffix_file;
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extern unsigned int maxsuffix;
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void count_implicit_rule_limits (void);
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void convert_to_pattern (void);
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void install_pattern_rule (struct pspec *p, int terminal);
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void create_pattern_rule (const char **targets, const char **target_percents,
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unsigned int num, int terminal, struct dep *deps,
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struct commands *commands, int override);
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