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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/java/jvgenmain.c
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Diffstat (limited to 'gcc/java/jvgenmain.c')
-rw-r--r--gcc/java/jvgenmain.c187
1 files changed, 187 insertions, 0 deletions
diff --git a/gcc/java/jvgenmain.c b/gcc/java/jvgenmain.c
new file mode 100644
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+++ b/gcc/java/jvgenmain.c
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+/* Program to generate "main" a Java(TM) class containing a main method.
+ Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+ 2007, 2008, 2010 Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+GCC 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, or (at your option)
+any later version.
+
+GCC 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 GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>.
+
+Java and all Java-based marks are trademarks or registered trademarks
+of Sun Microsystems, Inc. in the United States and other countries.
+The Free Software Foundation is independent of Sun Microsystems, Inc. */
+
+/* Written by Per Bothner <bothner@cygnus.com> */
+
+#include "config.h"
+#include "system.h"
+#include "coretypes.h"
+#include "obstack.h"
+#include "jcf.h"
+#include "tree.h"
+#include "java-tree.h"
+#include "intl.h"
+#include "tm.h" /* FIXME: For gcc_obstack_init from defaults.h. */
+
+static char * do_mangle_classname (const char *string);
+
+struct obstack name_obstack;
+struct obstack *mangle_obstack = &name_obstack;
+
+static void usage (const char *) ATTRIBUTE_NORETURN;
+
+static void
+usage (const char *name)
+{
+ fprintf (stderr, _("Usage: %s [OPTIONS]... CLASSNAMEmain [OUTFILE]\n"),
+ name);
+ exit (1);
+}
+
+int
+main (int argc, char **argv)
+{
+ char *classname, *p;
+ FILE *stream;
+ const char *mangled_classname;
+ int i, last_arg;
+ int indirect = 0;
+ char *prog_name = argv[0];
+
+ /* Unlock the stdio streams. */
+ unlock_std_streams ();
+
+ gcc_init_libintl ();
+
+ if (argc > 1 && ! strcmp (argv[1], "-findirect-dispatch"))
+ {
+ indirect = 1;
+ ++argv;
+ --argc;
+ }
+
+ if (argc < 2)
+ usage (prog_name);
+
+ for (i = 1; i < argc; ++i)
+ {
+ if (! strncmp (argv[i], "-D", 2))
+ {
+ /* Handled later. Check "-D XXX=YYY". */
+ if (argv[i][2] == '\0')
+ i++;
+ }
+ else
+ break;
+ }
+
+ if (i < argc - 2 || i == argc)
+ usage (prog_name);
+ last_arg = i;
+
+ classname = argv[i];
+
+ /* gcj always appends `main' to classname. We need to strip this here. */
+ p = strrchr (classname, 'm');
+ if (p == NULL || p == classname || strcmp (p, "main") != 0)
+ usage (prog_name);
+ else
+ *p = '\0';
+
+ gcc_obstack_init (mangle_obstack);
+ mangled_classname = do_mangle_classname (classname);
+
+ if (i < argc - 1 && strcmp (argv[i + 1], "-") != 0)
+ {
+ const char *outfile = argv[i + 1];
+ stream = fopen (outfile, "w");
+ if (stream == NULL)
+ {
+ fprintf (stderr, _("%s: Cannot open output file: %s\n"),
+ prog_name, outfile);
+ exit (1);
+ }
+ }
+ else
+ stream = stdout;
+
+ /* At this point every element of ARGV from 1 to LAST_ARG is a `-D'
+ option. Process them appropriately. */
+ fprintf (stream, "extern const char **_Jv_Compiler_Properties;\n");
+ fprintf (stream, "static const char *props[] =\n{\n");
+ for (i = 1; i < last_arg; ++i)
+ {
+ const char *p;
+
+ if (strcmp (argv[i], "-D") == 0)
+ continue;
+
+ fprintf (stream, " \"");
+ for (p = argv[i]; *p; ++p)
+ {
+ if (! ISPRINT (*p))
+ fprintf (stream, "\\%o", *p);
+ else if (*p == '\\' || *p == '"')
+ fprintf (stream, "\\%c", *p);
+ else
+ putc (*p, stream);
+ }
+ fprintf (stream, "\",\n");
+ }
+ fprintf (stream, " 0\n};\n\n");
+
+ fprintf (stream, "int main (int argc, const char **argv)\n");
+ fprintf (stream, "{\n");
+ fprintf (stream, " _Jv_Compiler_Properties = props;\n");
+ if (indirect)
+ fprintf (stream, " JvRunMainName (\"%s\", argc, argv);\n", classname);
+ else
+ {
+ fprintf (stream, " extern char %s;\n", mangled_classname);
+ fprintf (stream, " JvRunMain (&%s, argc, argv);\n", mangled_classname);
+ }
+ fprintf (stream, "}\n");
+ if (stream != stdout && fclose (stream) != 0)
+ {
+ fprintf (stderr, _("%s: Failed to close output file %s\n"),
+ prog_name, argv[2]);
+ exit (1);
+ }
+ return 0;
+}
+
+
+static char *
+do_mangle_classname (const char *string)
+{
+ const char *ptr;
+ int count = 0;
+
+ obstack_grow (&name_obstack, "_ZN", 3);
+
+ for (ptr = string; *ptr; ptr++ )
+ {
+ if (*ptr == '.')
+ {
+ append_gpp_mangled_name (ptr - count, count);
+ count = 0;
+ }
+ else
+ count++;
+ }
+ append_gpp_mangled_name (&ptr [-count], count);
+ obstack_grow (mangle_obstack, "6class$E", strlen ("6class$E"));
+ obstack_1grow (mangle_obstack, '\0');
+ return XOBFINISH (mangle_obstack, char *);
+}