gcc/java/jcf-depend.c

   1 /* Functions for handling dependency tracking when reading .class files.
   2
   3    Copyright (C) 1998, 1999, 2000, 2001  Free Software Foundation, Inc.
   4
   5 This program is free software; you can redistribute it and/or modify
   6 it under the terms of the GNU General Public License as published by
   7 the Free Software Foundation; either version 2, or (at your option)
   8 any later version.
   9
  10 This program is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with GNU CC; see the file COPYING.  If not, write to
  17 the Free Software Foundation, 59 Temple Place - Suite 330,
  18 Boston, MA 02111-1307, USA.
  19
  20 Java and all Java-based marks are trademarks or registered trademarks
  21 of Sun Microsystems, Inc. in the United States and other countries.
  22 The Free Software Foundation is independent of Sun Microsystems, Inc.  */
  23
  24 /* Written by Tom Tromey <tromey@cygnus.com>, October 1998.  */
  25
  26 #include "config.h"
  27 #include "system.h"
  28 #include "mkdeps.h"
  29
  30 #include <assert.h>
  31
  32 #include "jcf.h"
  33
  34 \f
  35
  36 /* The dependency structure used for this invocation.  */
  37 struct deps *dependencies;
  38
  39 /* The output file, or NULL if we aren't doing dependency tracking.  */
  40 static FILE *dep_out = NULL;
  41
  42 /* Nonzero if system files should be added.  */
  43 static int system_files;
  44
  45 /* Nonzero if we are dumping out dummy dependencies.  */
  46 static int print_dummies;
  47
  48 \f
  49
  50 /* Call this to reset the dependency module.  This is required if
  51    multiple dependency files are being generated from a single tool
  52    invocation.  FIXME: we should change our API or just completely use
  53    the one in mkdeps.h.  */
  54 void
  55 jcf_dependency_reset ()
  56 {
  57   if (dep_out != NULL)
  58     {
  59       if (dep_out != stdout)
  60         fclose (dep_out);
  61       dep_out = NULL;
  62     }
  63
  64   if (dependencies != NULL)
  65     {
  66       deps_free (dependencies);
  67       dependencies = NULL;
  68     }
  69 }
  70
  71 void
  72 jcf_dependency_set_target (name)
  73      const char *name;
  74 {
  75   /* We just handle this the same as an `add_target'.  */
  76   if (dependencies != NULL && name != NULL)
  77     deps_add_target (dependencies, name, 1);
  78 }
  79
  80 void
  81 jcf_dependency_add_target (name)
  82      const char *name;
  83 {
  84   if (dependencies != NULL)
  85     deps_add_target (dependencies, name, 1);
  86 }
  87
  88 void
  89 jcf_dependency_set_dep_file (name)
  90      const char *name;
  91 {
  92   assert (dep_out != stdout);
  93   if (dep_out)
  94     fclose (dep_out);
  95   if (! strcmp (name, "-"))
  96     dep_out = stdout;
  97   else
  98     dep_out = fopen (name, "w");
  99 }
 100
 101 void
 102 jcf_dependency_add_file (filename, system_p)
 103      const char *filename;
 104      int system_p;
 105 {
 106   if (! dependencies)
 107     return;
 108
 109   /* Just omit system files.  */
 110   if (system_p && ! system_files)
 111     return;
 112
 113   deps_add_dep (dependencies, filename);
 114 }
 115
 116 void
 117 jcf_dependency_init (system_p)
 118      int system_p;
 119 {
 120   assert (! dependencies);
 121   system_files = system_p;
 122   dependencies = deps_init ();
 123 }
 124
 125 void
 126 jcf_dependency_print_dummies ()
 127 {
 128   print_dummies = 1;
 129 }
 130
 131 void
 132 jcf_dependency_write ()
 133 {
 134   if (! dep_out)
 135     return;
 136
 137   assert (dependencies);
 138
 139   deps_write (dependencies, dep_out, 72);
 140   if (print_dummies)
 141     deps_phony_targets (dependencies, dep_out);
 142   fflush (dep_out);
 143 }