gjavah.c (main): Handle --output-class-directory argument.

* gjavah.c (main): Handle --output-class-directory argument.
	* jvspec.c (lang_specific_driver): Translate `-d' into
	-foutput-class-dir.
	* jcf.h (jcf_write_base_directory): Declare.
	* lang.c (lang_decode_option): Recognize -foutput-class-dir.
	* lang-options.h: Mention -foutput-class-dir.
	* jcf-write.c (jcf_write_base_directory): New global.
	(make_class_file_name): Put generated .class file into `-d'
	directory, or into source directory if -d not given.  Function now
	static.
	(write_classfile): Free class file name.  Handle case where class
	file name is NULL.
	(DIR_SEPARATOR): New macro.
	Include <sys/stat.h>

From-SVN: r23640

gcc/java/ChangeLog

@@ -1,5 +1,20 @@
 1998-11-13  Tom Tromey  <tromey@cygnus.com>
 
+	* gjavah.c (main): Handle --output-class-directory argument.
+	* jvspec.c (lang_specific_driver): Translate `-d' into
+	-foutput-class-dir.
+	* jcf.h (jcf_write_base_directory): Declare.
+	* lang.c (lang_decode_option): Recognize -foutput-class-dir.
+	* lang-options.h: Mention -foutput-class-dir.
+	* jcf-write.c (jcf_write_base_directory): New global.
+	(make_class_file_name): Put generated .class file into `-d'
+	directory, or into source directory if -d not given.  Function now
+	static.
+	(write_classfile): Free class file name.  Handle case where class
+	file name is NULL.
+	(DIR_SEPARATOR): New macro.
+	Include <sys/stat.h>
+
 	* Makefile.in (prefix): New macro.
 
 Thu Nov 12 14:15:07 1998  Per Bothner  <bothner@cygnus.com>

gcc/java/jcf-write.c

@@ -34,8 +34,19 @@ The Free Software Foundation is independent of Sun Microsystems, Inc.  */
 #include "parse.h" /* for BLOCK_EXPR_BODY */
 #include "buffer.h"
 
+#include <sys/stat.h>
+
+#ifndef DIR_SEPARATOR
+#define DIR_SEPARATOR '/'
+#endif
+
 extern struct obstack temporary_obstack;
 
+/* Base directory in which `.class' files should be written.
+   NULL means to put the file into the same directory as the
+   corresponding .java file.  */
+char *jcf_write_base_directory = NULL;
+
 /* Make sure bytecode.data is big enough for at least N more bytes. */
 
 #define RESERVE(N) \
@@ -2498,13 +2509,73 @@ generate_classfile (clas, state)
   return state->first;
 }
 
-char*
+static char *
 make_class_file_name (clas)
      tree clas;
 {
-  /* Should prepend an output directly, but need an option to specify it. */
-  return IDENTIFIER_POINTER (identifier_subst (DECL_NAME (TYPE_NAME (clas)),
-					       "", '.', '/', ".class"));
+  char *cname, *dname, *slash, *r;
+  struct stat sb;
+
+  cname = IDENTIFIER_POINTER (identifier_subst (DECL_NAME (TYPE_NAME (clas)),
+						"", '.', DIR_SEPARATOR,
+						".class"));
+  if (jcf_write_base_directory == NULL)
+    {
+      /* Make sure we put the class file into the .java file's
+	 directory, and not into some subdirectory thereof.  */
+      char *t;
+      dname = DECL_SOURCE_FILE (TYPE_NAME (clas));
+      slash = strrchr (dname, DIR_SEPARATOR);
+      if (! slash)
+	{
+	  dname = ".";
+	  slash = dname + 1;
+	}
+      t = strrchr (cname, DIR_SEPARATOR);
+      if (t)
+	cname = t + 1;
+    }
+  else
+    {
+      dname = jcf_write_base_directory;
+      slash = dname + strlen (dname);
+    }
+
+  r = xmalloc (slash - dname + strlen (cname) + 2);
+  strncpy (r, dname, slash - dname);
+  r[slash - dname] = DIR_SEPARATOR;
+  strcpy (&r[slash - dname + 1], cname);
+
+  /* We try to make new directories when we need them.  We only do
+     this for directories which "might not" exist.  For instance, we
+     assume the `-d' directory exists, but we don't assume that any
+     subdirectory below it exists.  It might be worthwhile to keep
+     track of which directories we've created to avoid gratuitous
+     stat()s.  */
+  dname = r + (slash - dname) + 1;
+  while (1)
+    {
+      cname = strchr (dname, DIR_SEPARATOR);
+      if (cname == NULL)
+	break;
+      *cname = '\0';
+      if (stat (r, &sb) == -1)
+	{
+	  /* Try to make it.  */
+	  if (mkdir (r, 0755) == -1)
+	    {
+	      fatal ("failed to create directory `%s'", r);
+	      free (r);
+	      return NULL;
+	    }
+	}
+      *cname = DIR_SEPARATOR;
+      /* Skip consecutive separators.  */
+      for (dname = cname + 1; *dname && *dname == DIR_SEPARATOR; ++dname)
+	;
+    }
+
+  return r;
 }
 
 /* Write out the contens of a class (RECORD_TYPE) CLAS, as a .class file.
@@ -2518,15 +2589,20 @@ write_classfile (clas)
   struct jcf_partial state[1];
   char *class_file_name = make_class_file_name (clas);
   struct chunk *chunks;
-  FILE* stream = fopen (class_file_name, "wb");
-  if (stream == NULL)
-    fatal ("failed to open `%s' for writing", class_file_name);
-  jcf_dependency_add_target (class_file_name);
-  init_jcf_state (state, work);
-  chunks = generate_classfile (clas, state);
-  write_chunks (stream, chunks);
-  if (fclose (stream))
-    fatal ("failed to close after writing `%s'", class_file_name);
+
+  if (class_file_name != NULL)
+    {
+      FILE* stream = fopen (class_file_name, "wb");
+      if (stream == NULL)
+	fatal ("failed to open `%s' for writing", class_file_name);
+      jcf_dependency_add_target (class_file_name);
+      init_jcf_state (state, work);
+      chunks = generate_classfile (clas, state);
+      write_chunks (stream, chunks);
+      if (fclose (stream))
+	fatal ("failed to close after writing `%s'", class_file_name);
+      free (class_file_name);
+    }
   release_jcf_state (state);
 }
 

gcc/java/jcf.h

@@ -245,6 +245,8 @@ extern int jcf_unexpected_eof PROTO ((JCF*, int));
    ? (((PTR)[-3]&0x1F) << 12) + (((PTR)[-2]&0x3F) << 6) + ((PTR)[-1]&0x3F) \
    : ((PTR)++, -1))
 
+extern char *jcf_write_base_directory;
+
 /* Debug macros, for the front end */
 
 extern int quiet_flag;

gcc/java/jvspec.c

@@ -302,6 +302,12 @@ lang_specific_driver (fn, in_argc, in_argv, in_added_libraries)
 	      /* Remember this so we can confirm -fmain option.  */
 	      will_link = 0;
 	    }
+	  else if (strcmp (argv[i], "-d") == 0)
+	    {
+	      /* `-d' option is for javac compatibility.  */
+	      quote = argv[i];
+	      added -= 1;
+	    }
 	  else
 	    /* Pass other options through.  */
 	    continue;
@@ -404,6 +410,16 @@ lang_specific_driver (fn, in_argc, in_argv, in_added_libraries)
 	  continue;
 	}
 
+      if (strcmp (argv[i], "-d") == 0)
+	{
+	  char *patharg = (char *) xmalloc (sizeof ("-foutput-class-dir=")
+					    + strlen (argv[i + 1]) + 1);
+	  sprintf (patharg, "-foutput-class-dir=%s", argv[i + 1]);
+	  arglist[j] = patharg;
+	  ++i;
+	  continue;
+	}
+
       if (strncmp (argv[i], "-fmain=", 7) == 0)
 	{
 	  if (! will_link)

gcc/java/lang-options.h

@@ -25,11 +25,8 @@ The Free Software Foundation is independent of Sun Microsystems, Inc.  */
 /* This is the contribution to the `lang_options' array in gcc.c for
    java.  */
 
-/* CYGNUS LOCAL - the format of this file has been changed to
-   allow cc1 to implement --help.  nickc/--help */
-
 DEFINE_LANG_NAME ("Java")
-     
+
   { "-fbounds-check", "" },
   { "-fno-bounds-check", "Disable automatic array bounds checking" },
   { "-fassume-compiled", "Make is_compiled_class return 1"},
@@ -43,3 +40,4 @@ DEFINE_LANG_NAME ("Java")
   { "-fclasspath", "Set class path and suppress system path" },
   { "-fCLASSPATH", "Set class path" },
   { "-I", "Add directory to class path" },
+  { "-foutput-class-dir", "Directory where class files should be written" },

gcc/java/lang.c

@@ -147,6 +147,14 @@ lang_decode_option (argc, argv)
       return 1;
     }
 
+#define ARG "-foutput-class-dir="
+  if (strncmp (p, ARG, sizeof (ARG) - 1) == 0)
+    {
+      jcf_write_base_directory = p + sizeof (ARG) - 1;
+      return 1;
+    }
+#undef ARG
+
   if (p[0] == '-' && p[1] == 'f')
     {
       /* Some kind of -f option.