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/* Specific flags and argument handling of the front-end of the
   GNU compiler for the Java(TM) language.
   Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
   2005, 2006, 2007 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.  */
 
#include "config.h"
#include "system.h"
#include "coretypes.h"
#include "tm.h"
#include "gcc.h"
#include "jcf.h"
 
/* Name of spec file.  */
#define SPEC_FILE "libgcj.spec"
 
/* This bit is set if we saw a `-xfoo' language specification.  */
#define LANGSPEC        (1<<1)
/* True if this arg is a parameter to the previous option-taking arg. */
#define PARAM_ARG       (1<<2)
/* True if this arg is a .java input file name. */
#define JAVA_FILE_ARG   (1<<3)
/* True if this arg is a .class input file name. */
#define CLASS_FILE_ARG  (1<<4)
/* True if this arg is a .zip or .jar input file name. */
#define ZIP_FILE_ARG    (1<<5)
/* True if this arg is @FILE - where FILE contains a list of filenames. */
#define INDIRECT_FILE_ARG (1<<6)
/* True if this arg is a resource file.  */
#define RESOURCE_FILE_ARG (1<<7)
 
static char *find_spec_file (const char *);
static int verify_class_name (const char *);
 
static const char *main_class_name = NULL;
int lang_specific_extra_outfiles = 0;
 
/* True if we should add -shared-libgcc to the command-line.  */
int shared_libgcc = 1;
 
static const char jvgenmain_spec[] =
  "jvgenmain %{findirect-dispatch} %{D*} %b %m.i |\n\
   cc1 %m.i %1 \
                   %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a*}\
                   %{g*} %{O*} \
                   %{v:-version} %{pg:-p} %{p}\
                   %<fbounds-check %<fno-bounds-check\
                   %<fassume-compiled* %<fno-assume-compiled*\
                   %<fcompile-resource* %<fassert %<fno-assert \
                   %<femit-class-file %<femit-class-files %<fencoding*\
                   %<fuse-boehm-gc %<fhash-synchronization %<fjni\
                   %<findirect-dispatch %<fnew-verifier\
                   %<fno-store-check %<foutput-class-dir\
                   %<fclasspath* %<fCLASSPATH* %<fbootclasspath*\
                   %<fextdirs*\
                   %<fuse-divide-subroutine %<fno-use-divide-subroutine\
                   %<fuse-atomic-builtins %<fno-use-atomic-builtins\
                   %<fcheck-references %<fno-check-references\
                   %<ffilelist-file %<fsaw-java-file %<fsource* %<ftarget*\
                   %{f*} -fdollars-in-identifiers\
                   %{aux-info*}\
                   %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
                   %{S:%W{o*}%{!o*:-o %b.s}}\
   %(invoke_as)";
 
/* Return full path name of spec file if it is in DIR, or NULL if
   not.  */
static char *
find_spec_file (const char *dir)
{
  char *spec;
  int x;
  struct stat sb;
 
  spec = XNEWVEC (char, strlen (dir) + sizeof (SPEC_FILE)
                  + sizeof ("-specs=") + 4);
  strcpy (spec, "-specs=");
  x = strlen (spec);
  strcat (spec, dir);
  strcat (spec, "/");
  strcat (spec, SPEC_FILE);
  if (! stat (spec + x, &sb))
    return spec;
  free (spec);
  return NULL;
}
 
#define JAVA_START_CHAR_P(c) (c < 128 && (ISIDST (c) || c == '$'))
#define JAVA_PART_CHAR_P(c) (c < 128                                          \
                             && (ISIDNUM (c)                                  \
                                 || c == '$'                                  \
                                 || (c >= 0x00 && c <= 0x08)                  \
                                 || (c >= 0x0e && c <= 0x1b)                  \
                                 || c == 0x7f))
 
/* Verify that NAME is a valid Java class name that might contain
   `main'.  Return 0 on failure.  */
static int
verify_class_name (const char *name)
{
  /* FIXME: what encoding do we use for command-line arguments?  For
     now we assume plain ASCII, which of course is wrong.  */
  while (*name)
    {
      int ch = *name++;
      if (ch < 0 || ! JAVA_START_CHAR_P (ch))
        return 0;
      while (*name)
        {
          ch = *name++;
          if (ch < 0)
            return 0;
          /* We found a break between class names.  Next character
             must be an identifier start again.  */
          if (ch == '.')
            break;
          if (! JAVA_PART_CHAR_P (ch))
            return 0;
        }
    }
 
  return 1;
}
 
void
lang_specific_driver (int *in_argc, const char *const **in_argv,
                      int *in_added_libraries)
{
  int i, j;
 
  int saw_save_temps = 0;
 
  /* This will be 0 if we encounter a situation where we should not
     link in libgcj.  */
  int library = 1;
 
  /* This will be 1 if multiple input files (.class and/or .java)
     should be passed to a single jc1 invocation. */
  int combine_inputs = 0;
 
  /* Number of .java and .class source file arguments seen. */
  int java_files_count = 0;
  int class_files_count = 0;
  /* Number of .zip or .jar file arguments seen. */
  int zip_files_count = 0;
  /* Number of '@FILES' arguments seen. */
  int indirect_files_count = 0;
 
  /* Name of file containing list of files to compile. */
  char *filelist_filename = 0;
 
  FILE *filelist_file = 0;
 
  /* The number of arguments being added to what's in argv, other than
     libraries.  */
  int added = 2;
 
  /* Used to track options that take arguments, so we don't go wrapping
     those with -xc++/-xnone.  */
  const char *quote = NULL;
 
  /* The new argument list will be contained in this.  */
  const char **arglist;
 
  /* Nonzero if we saw a `-xfoo' language specification on the
     command line.  Used to avoid adding our own -xc++ if the user
     already gave a language for the file.  */
  int saw_speclang = 0;
 
  /* Saw --resource, -C or -o options, respectively. */
  int saw_resource = 0;
  int saw_C = 0;
  int saw_o = 0;
 
  /* Saw some -O* or -g* option, respectively. */
  int saw_O = 0;
  int saw_g = 0;
 
  /* Saw a `-D' option.  */
  int saw_D = 0;
 
  /* An array used to flag each argument that needs a bit set for
     LANGSPEC, MATHLIB, WITHLIBC, or GCLIB.  */
  int *args;
 
  /* The total number of arguments with the new stuff.  */
  int argc;
 
  /* The argument list.  */
  const char *const *argv;
 
  /* The number of libraries added in.  */
  int added_libraries;
 
  /* The total number of arguments with the new stuff.  */
  int num_args = 1;
 
  /* Nonzero if linking is supposed to happen.  */
  int will_link = 1;
 
  /* Nonzero if we want to find the spec file.  */
  int want_spec_file = 1;
 
  /* The argument we use to specify the spec file.  */
  char *spec_file = NULL;
 
  /* If linking, nonzero if the BC-ABI is in use.  */
  int link_for_bc_abi = 0;
 
  argc = *in_argc;
  argv = *in_argv;
  added_libraries = *in_added_libraries;
 
  args = XCNEWVEC (int, argc);
 
  for (i = 1; i < argc; i++)
    {
      /* If the previous option took an argument, we swallow it here.  */
      if (quote)
        {
          quote = NULL;
          args[i] |= PARAM_ARG;
          continue;
        }
 
      /* We don't do this anymore, since we don't get them with minus
         signs on them.  */
      if (argv[i][0] == '\0' || argv[i][1] == '\0')
        continue;
 
      if (argv[i][0] == '-')
        {
          if (library != 0 && (strcmp (argv[i], "-nostdlib") == 0
                               || strcmp (argv[i], "-nodefaultlibs") == 0))
            {
              library = 0;
            }
          else if (strncmp (argv[i], "-fmain=", 7) == 0)
            {
              main_class_name = argv[i] + 7;
              added--;
            }
          else if (strcmp (argv[i], "-fhelp") == 0)
            want_spec_file = 0;
          else if (strcmp (argv[i], "-v") == 0)
            {
              if (argc == 2)
                {
                  /* If they only gave us `-v', don't try to link
                     in libgcj.  */
                  library = 0;
                }
            }
          else if (strncmp (argv[i], "-x", 2) == 0)
            saw_speclang = 1;
          else if (strcmp (argv[i], "-C") == 0)
            {
              saw_C = 1;
              want_spec_file = 0;
              if (library != 0)
                added -= 2;
              library = 0;
              will_link = 0;
            }
          else if (strncmp (argv[i], "-fcompile-resource=", 19) == 0)
            {
              saw_resource = 1;
              want_spec_file = 0;
              if (library != 0)
                --added;
              library = 0;
              will_link = 0;
            }
          else if (argv[i][1] == 'D')
            saw_D = 1;
          else if (argv[i][1] == 'g')
            saw_g = 1;
          else if (argv[i][1] == 'O')
            saw_O = 1;
          else if ((argv[i][2] == '\0'
                    && strchr ("bBVDUoeTuIYmLiAI", argv[i][1]) != NULL)
                   || strcmp (argv[i], "-Tdata") == 0
                   || strcmp (argv[i], "-MT") == 0
                   || strcmp (argv[i], "-MF") == 0)
            {
              if (strcmp (argv[i], "-o") == 0)
                saw_o = 1;
              quote = argv[i];
            }
          else if (strcmp (argv[i], "-classpath") == 0
                   || strcmp (argv[i], "-bootclasspath") == 0
                   || strcmp (argv[i], "-CLASSPATH") == 0
                   || strcmp (argv[i], "-encoding") == 0
                   || strcmp (argv[i], "-extdirs") == 0)
            {
              quote = argv[i];
              added -= 1;
            }
          else if (library != 0
                   && ((argv[i][2] == '\0'
                        && strchr ("cSEM", argv[i][1]) != NULL)
                       || strcmp (argv[i], "-MM") == 0))
            {
              /* Don't specify libraries if we won't link, since that would
                 cause a warning.  */
              library = 0;
              added -= 2;
 
              /* 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 if (strcmp (argv[i], "-fsyntax-only") == 0
                   || strcmp (argv[i], "--syntax-only") == 0)
            {
              library = 0;
              will_link = 0;
              continue;
            }
          else if (strcmp (argv[i], "-save-temps") == 0)
            saw_save_temps = 1;
          else if (strcmp (argv[i], "-static-libgcc") == 0
                   || strcmp (argv[i], "-static") == 0)
            shared_libgcc = 0;
          else if (strcmp (argv[i], "-findirect-dispatch") == 0
                   || strcmp (argv[i], "--indirect-dispatch") == 0)
            {
              link_for_bc_abi = 1;
            }
          else
            /* Pass other options through.  */
            continue;
        }
      else
        {
          int len;
 
          if (saw_speclang)
            {
              saw_speclang = 0;
              continue;
            }
 
          if (saw_resource)
            {
              args[i] |= RESOURCE_FILE_ARG;
              added += 2;  /* for -xjava and -xnone */
            }
 
          if (argv[i][0] == '@')
            {
              args[i] |= INDIRECT_FILE_ARG;
              indirect_files_count++;
              added += 2;  /* for -xjava and -xnone */
            }
 
          len = strlen (argv[i]);
          if (len > 5 && strcmp (argv[i] + len - 5, ".java") == 0)
            {
              args[i] |= JAVA_FILE_ARG;
              java_files_count++;
            }
          if (len > 6 && strcmp (argv[i] + len - 6, ".class") == 0)
            {
              args[i] |= CLASS_FILE_ARG;
              class_files_count++;
            }
          if (len > 4
              && (strcmp (argv[i] + len - 4, ".zip") == 0
                  || strcmp (argv[i] + len - 4, ".jar") == 0))
            {
              args[i] |= ZIP_FILE_ARG;
              zip_files_count++;
            }
        }
    }
 
  if (quote)
    fatal ("argument to '%s' missing\n", quote);
 
  if (saw_D && ! main_class_name)
    fatal ("can't specify '-D' without '--main'\n");
 
  if (main_class_name && ! verify_class_name (main_class_name))
    fatal ("'%s' is not a valid class name", main_class_name);
 
  num_args = argc + added;
  if (saw_resource)
    {
      if (! saw_o)
        fatal ("--resource requires -o");
    }
  if (saw_C)
    {
      num_args += 3;
      if (class_files_count + zip_files_count > 0)
        {
          error ("warning: already-compiled .class files ignored with -C");
          num_args -= class_files_count + zip_files_count;
          class_files_count = 0;
          zip_files_count = 0;
        }
      num_args += 2;  /* For -o NONE. */
      if (saw_o)
        fatal ("cannot specify both -C and -o");
    }
  if ((saw_o && java_files_count + class_files_count + zip_files_count > 1)
      || (saw_C && java_files_count > 1)
      || (indirect_files_count > 0
          && java_files_count + class_files_count + zip_files_count > 0))
    combine_inputs = 1;
 
  if (combine_inputs)
    {
      filelist_filename = make_temp_file ("jx");
      if (filelist_filename == NULL)
        fatal ("cannot create temporary file");
      record_temp_file (filelist_filename, ! saw_save_temps, 0);
      filelist_file = fopen (filelist_filename, "w");
      if (filelist_file == NULL)
        pfatal_with_name (filelist_filename);
      num_args -= java_files_count + class_files_count + zip_files_count;
      num_args += 3;  /* for the combined arg "-xjava", and "-xnone" */
    }
 
  if (main_class_name)
    {
      lang_specific_extra_outfiles++;
    }
  if (saw_g + saw_O == 0)
    num_args++;
  num_args++;
  /* An additional entry for the classpath.  */
  num_args++;
 
  if (combine_inputs || indirect_files_count > 0)
    num_args += 1; /* for "-ffilelist-file" */
  if (combine_inputs && indirect_files_count > 0)
    fatal("using both @FILE with multiple files not implemented");
 
  /* There's no point adding -shared-libgcc if we don't have a shared
     libgcc.  */
#ifndef ENABLE_SHARED_LIBGCC
  shared_libgcc = 0;
#endif  
 
  if (java_files_count > 0)
    ++num_args;
 
  num_args += shared_libgcc;
 
  num_args += link_for_bc_abi;
 
  arglist = XNEWVEC (const char *, num_args + 1);
  j = 0;
 
  arglist[j++] = argv[0];
 
  if (combine_inputs || indirect_files_count > 0)
    arglist[j++] = "-ffilelist-file";
 
  if (combine_inputs)
    {
      arglist[j++] = "-xjava";
      arglist[j++] = filelist_filename;
      arglist[j++] = "-xnone";
    }
 
  if (java_files_count > 0)
    arglist[j++] = "-fsaw-java-file";
 
  jcf_path_init ();
  for (i = 1; i < argc; i++, j++)
    {
      arglist[j] = argv[i];
 
      if ((args[i] & PARAM_ARG))
        continue;
 
      if ((args[i] & RESOURCE_FILE_ARG) != 0)
        {
          arglist[j++] = "-xjava";
          arglist[j++] = argv[i];
          arglist[j] = "-xnone";
        }
 
      if (argv[i][0] == '-' && argv[i][1] == 'I')
        {
          const char *arg;
          if (argv[i][2] == '\0')
            {
              gcc_assert (i + 1 < argc && (args[i + 1] & PARAM_ARG) != 0);
              arg = argv[i + 1];
              /* Drop the argument.  */
              ++i;
            }
          else
            arg = &argv[i][2];
          jcf_path_include_arg (arg);
          --j;
          continue;
        }
      if (! strcmp (argv[i], "-classpath")
          || ! strcmp (argv[i], "-CLASSPATH"))
        {
          jcf_path_classpath_arg (argv[i + 1]);
          ++i;
          --j;
          continue;
        }
      if (! strcmp (argv[i], "-bootclasspath"))
        {
          jcf_path_bootclasspath_arg (argv[i + 1]);
          ++i;
          --j;
          continue;
        }
      if (! strncmp (argv[i], "-fCLASSPATH=", 12)
          || ! strncmp (argv[i], "-fclasspath=", 12))
        {
          const char *p = strchr (argv[i], '=');
          jcf_path_classpath_arg (p + 1);
          --j;
          continue;
        }
      if (! strncmp (argv[i], "-fbootclasspath=", 16))
        {
          const char *p = strchr (argv[i], '=');
          jcf_path_bootclasspath_arg (p + 1);
          --j;
          continue;
        }
      if (! strcmp (argv[i], "-extdirs"))
        {
          jcf_path_extdirs_arg (argv[i + 1]);
          ++i;
          --j;
          continue;
        }
 
      if (strcmp (argv[i], "-encoding") == 0)
        {
          arglist[j] = concat ("-f", argv[i]+1, "=", argv[i+1], NULL);
          i++;
          continue;
        }
 
      if (strcmp (argv[i], "-d") == 0)
        {
          arglist[j] = concat ("-foutput-class-dir=", argv[i + 1], NULL);
          ++i;
          continue;
        }
 
      if (spec_file == NULL && strncmp (argv[i], "-L", 2) == 0)
        spec_file = find_spec_file (argv[i] + 2);
 
      if (strncmp (argv[i], "-fmain=", 7) == 0)
        {
          if (! will_link)
            fatal ("cannot specify 'main' class when not linking");
          --j;
          continue;
        }
 
      if ((args[i] & INDIRECT_FILE_ARG) != 0)
        {
          arglist[j++] = "-xjava";
          arglist[j++] = argv[i]+1;  /* Drop '@'. */
          arglist[j] = "-xnone";
        }
 
      if ((args[i] & (CLASS_FILE_ARG|ZIP_FILE_ARG)) && saw_C)
        {
          --j;
          continue;
        }
 
      if (combine_inputs
          && (args[i] & (CLASS_FILE_ARG|JAVA_FILE_ARG|ZIP_FILE_ARG)) != 0)
        {
          fputs (argv[i], filelist_file);
          fputc ('\n', filelist_file);
          --j;
          continue;
        }
  }
 
  /* Handle classpath setting.  We specify the bootclasspath since
     that requires the fewest changes to our existing code...  */
  jcf_path_seal (0);
  arglist[j++] = jcf_path_compute ("-fbootclasspath=");
 
  if (combine_inputs)
    {
      if (fclose (filelist_file))
        pfatal_with_name (filelist_filename);
    }
 
  /* If we saw no -O or -g option, default to -g1, for javac compatibility. */
  if (saw_g + saw_O == 0)
    arglist[j++] = "-g1";
 
  /* Read the specs file corresponding to libgcj.
     If we didn't find the spec file on the -L path, then we hope it
     is somewhere in the standard install areas.  */
  if (want_spec_file)
    arglist[j++] = spec_file == NULL ? "-specs=libgcj.spec" : spec_file;
 
  if (saw_C)
    {
      arglist[j++] = "-fsyntax-only";
      arglist[j++] = "-femit-class-files";
      arglist[j++] = "-S";
      arglist[j++] = "-o";
      arglist[j++] = "NONE";
    }
 
  if (shared_libgcc)
    arglist[j++] = "-shared-libgcc";
 
  if (link_for_bc_abi)
    arglist[j++] = "-s-bc-abi";
 
  arglist[j] = NULL;
 
  *in_argc = j;
  *in_argv = arglist;
  *in_added_libraries = added_libraries;
}
 
int
lang_specific_pre_link (void)
{
  int err;
  if (main_class_name == NULL)
    return 0;
  /* Append `main' to make the filename unique and allow
 
        gcj --main=hello -save-temps hello.java
 
     to work.  jvgenmain needs to strip this `main' to arrive at the correct
     class name.  Append dummy `.c' that can be stripped by set_input so %b
     is correct.  */
  set_input (concat (main_class_name, "main.c", NULL));
  err = do_spec (jvgenmain_spec);
  if (err == 0)
    {
      /* Shift the outfiles array so the generated main comes first.
         This is important when linking against (non-shared) libraries,
         since otherwise we risk (a) nothing getting linked or
         (b) 'main' getting picked up from a library. */
      int i = n_infiles;
      const char *generated = outfiles[i];
      while (--i >= 0)
        outfiles[i + 1] = outfiles[i];
      outfiles[0] = generated;
    }
  return err;
}

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[/] [openrisc/] [trunk/] [gnu-stable/] [gcc-4.5.1/] [gcc/] [java/] [jvspec.c] - Blame information for rev 826

Line No.	Rev	Author	Line
1	287	jeremybenn	`/* Specific flags and argument handling of the front-end of the`
2			`GNU compiler for the Java(TM) language.`
3			`Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,`
4			`2005, 2006, 2007 Free Software Foundation, Inc.`
5
6			`This file is part of GCC.`
7
8			`GCC is free software; you can redistribute it and/or modify`
9			`it under the terms of the GNU General Public License as published by`
10			`the Free Software Foundation; either version 3, or (at your option)`
11			`any later version.`
12
13			`GCC is distributed in the hope that it will be useful,`
14			`but WITHOUT ANY WARRANTY; without even the implied warranty of`
15			`MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the`
16			`GNU General Public License for more details.`
17
18			`You should have received a copy of the GNU General Public License`
19			`along with GCC; see the file COPYING3. If not see`
20			`<http://www.gnu.org/licenses/>.`
21
22			`Java and all Java-based marks are trademarks or registered trademarks`
23			`of Sun Microsystems, Inc. in the United States and other countries.`
24			`The Free Software Foundation is independent of Sun Microsystems, Inc. */`
25
26			`#include "config.h"`
27			`#include "system.h"`
28			`#include "coretypes.h"`
29			`#include "tm.h"`
30			`#include "gcc.h"`
31			`#include "jcf.h"`
32
33			`/* Name of spec file. */`
34			`#define SPEC_FILE "libgcj.spec"`
35
36			/* This bit is set if we saw a `-xfoo' language specification. */
37			`#define LANGSPEC (1<<1)`
38			`/* True if this arg is a parameter to the previous option-taking arg. */`
39			`#define PARAM_ARG (1<<2)`
40			`/* True if this arg is a .java input file name. */`
41			`#define JAVA_FILE_ARG (1<<3)`
42			`/* True if this arg is a .class input file name. */`
43			`#define CLASS_FILE_ARG (1<<4)`
44			`/* True if this arg is a .zip or .jar input file name. */`
45			`#define ZIP_FILE_ARG (1<<5)`
46			`/* True if this arg is @FILE - where FILE contains a list of filenames. */`
47			`#define INDIRECT_FILE_ARG (1<<6)`
48			`/* True if this arg is a resource file. */`
49			`#define RESOURCE_FILE_ARG (1<<7)`
50
51			`static char find_spec_file (const char );`
52			`static int verify_class_name (const char *);`
53
54			`static const char *main_class_name = NULL;`
55			`int lang_specific_extra_outfiles = 0;`
56
57			`/* True if we should add -shared-libgcc to the command-line. */`
58			`int shared_libgcc = 1;`
59
60			`static const char jvgenmain_spec[] =`
61			`"jvgenmain %{findirect-dispatch} %{D*} %b %m.i \|\n\`
62			`cc1 %m.i %1 \`
63			`%{!Q:-quiet} -dumpbase %b.c %{d} %{m} %{a*}\`
64			`%{g} %{O} \`
65			`%{v:-version} %{pg:-p} %{p}\`
66			`%<fbounds-check %<fno-bounds-check\`
67			`%<fassume-compiled* %<fno-assume-compiled*\`
68			`%<fcompile-resource* %<fassert %<fno-assert \`
69			`%<femit-class-file %<femit-class-files %<fencoding*\`
70			`%<fuse-boehm-gc %<fhash-synchronization %<fjni\`
71			`%<findirect-dispatch %<fnew-verifier\`
72			`%<fno-store-check %<foutput-class-dir\`
73			`%<fclasspath* %<fCLASSPATH* %<fbootclasspath*\`
74			`%<fextdirs*\`
75			`%<fuse-divide-subroutine %<fno-use-divide-subroutine\`
76			`%<fuse-atomic-builtins %<fno-use-atomic-builtins\`
77			`%<fcheck-references %<fno-check-references\`
78			`%<ffilelist-file %<fsaw-java-file %<fsource* %<ftarget*\`
79			`%{f*} -fdollars-in-identifiers\`
80			`%{aux-info*}\`
81			`%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\`
82			`%{S:%W{o}%{!o:-o %b.s}}\`
83			`%(invoke_as)";`
84
85			`/* Return full path name of spec file if it is in DIR, or NULL if`
86			`not. */`
87			`static char *`
88			`find_spec_file (const char *dir)`
89			`{`
90			`char *spec;`
91			`int x;`
92			`struct stat sb;`
93
94			`spec = XNEWVEC (char, strlen (dir) + sizeof (SPEC_FILE)`
95			`+ sizeof ("-specs=") + 4);`
96			`strcpy (spec, "-specs=");`
97			`x = strlen (spec);`
98			`strcat (spec, dir);`
99			`strcat (spec, "/");`
100			`strcat (spec, SPEC_FILE);`
101			`if (! stat (spec + x, &sb))`
102			`return spec;`
103			`free (spec);`
104			`return NULL;`
105			`}`
106
107			`#define JAVA_START_CHAR_P(c) (c < 128 && (ISIDST (c) \|\| c == '$'))`
108			`#define JAVA_PART_CHAR_P(c) (c < 128 \`
109			`&& (ISIDNUM (c) \`
110			`\|\| c == '$' \`
111			`\|\| (c >= 0x00 && c <= 0x08) \`
112			`\|\| (c >= 0x0e && c <= 0x1b) \`
113			`\|\| c == 0x7f))`
114
115			`/* Verify that NAME is a valid Java class name that might contain`
116			`main'. Return 0 on failure. */
117			`static int`
118			`verify_class_name (const char *name)`
119			`{`
120			`/* FIXME: what encoding do we use for command-line arguments? For`
121			`now we assume plain ASCII, which of course is wrong. */`
122			`while (*name)`
123			`{`
124			`int ch = *name++;`
125			`if (ch < 0 \|\| ! JAVA_START_CHAR_P (ch))`
126			`return 0;`
127			`while (*name)`
128			`{`
129			`ch = *name++;`
130			`if (ch < 0)`
131			`return 0;`
132			`/* We found a break between class names. Next character`
133			`must be an identifier start again. */`
134			`if (ch == '.')`
135			`break;`
136			`if (! JAVA_PART_CHAR_P (ch))`
137			`return 0;`
138			`}`
139			`}`
140
141			`return 1;`
142			`}`
143
144			`void`
145			`lang_specific_driver (int in_argc, const char const **in_argv,`
146			`int *in_added_libraries)`
147			`{`
148			`int i, j;`
149
150			`int saw_save_temps = 0;`
151
152			`/* This will be 0 if we encounter a situation where we should not`
153			`link in libgcj. */`
154			`int library = 1;`
155
156			`/* This will be 1 if multiple input files (.class and/or .java)`
157			`should be passed to a single jc1 invocation. */`
158			`int combine_inputs = 0;`
159
160			`/* Number of .java and .class source file arguments seen. */`
161			`int java_files_count = 0;`
162			`int class_files_count = 0;`
163			`/* Number of .zip or .jar file arguments seen. */`
164			`int zip_files_count = 0;`
165			`/* Number of '@FILES' arguments seen. */`
166			`int indirect_files_count = 0;`
167
168			`/* Name of file containing list of files to compile. */`
169			`char *filelist_filename = 0;`
170
171			`FILE *filelist_file = 0;`
172
173			`/* The number of arguments being added to what's in argv, other than`
174			`libraries. */`
175			`int added = 2;`
176
177			`/* Used to track options that take arguments, so we don't go wrapping`
178			`those with -xc++/-xnone. */`
179			`const char *quote = NULL;`
180
181			`/* The new argument list will be contained in this. */`
182			`const char **arglist;`
183
184			/* Nonzero if we saw a `-xfoo' language specification on the
185			`command line. Used to avoid adding our own -xc++ if the user`
186			`already gave a language for the file. */`
187			`int saw_speclang = 0;`
188
189			`/* Saw --resource, -C or -o options, respectively. */`
190			`int saw_resource = 0;`
191			`int saw_C = 0;`
192			`int saw_o = 0;`
193
194			`/* Saw some -O* or -g* option, respectively. */`
195			`int saw_O = 0;`
196			`int saw_g = 0;`
197
198			/* Saw a `-D' option. */
199			`int saw_D = 0;`
200
201			`/* An array used to flag each argument that needs a bit set for`
202			`LANGSPEC, MATHLIB, WITHLIBC, or GCLIB. */`
203			`int *args;`
204
205			`/* The total number of arguments with the new stuff. */`
206			`int argc;`
207
208			`/* The argument list. */`
209			`const char const argv;`
210
211			`/* The number of libraries added in. */`
212			`int added_libraries;`
213
214			`/* The total number of arguments with the new stuff. */`
215			`int num_args = 1;`
216
217			`/* Nonzero if linking is supposed to happen. */`
218			`int will_link = 1;`
219
220			`/* Nonzero if we want to find the spec file. */`
221			`int want_spec_file = 1;`
222
223			`/* The argument we use to specify the spec file. */`
224			`char *spec_file = NULL;`
225
226			`/* If linking, nonzero if the BC-ABI is in use. */`
227			`int link_for_bc_abi = 0;`
228
229			`argc = *in_argc;`
230			`argv = *in_argv;`
231			`added_libraries = *in_added_libraries;`
232
233			`args = XCNEWVEC (int, argc);`
234
235			`for (i = 1; i < argc; i++)`
236			`{`
237			`/* If the previous option took an argument, we swallow it here. */`
238			`if (quote)`
239			`{`
240			`quote = NULL;`
241			`args[i] \|= PARAM_ARG;`
242			`continue;`
243			`}`
244
245			`/* We don't do this anymore, since we don't get them with minus`
246			`signs on them. */`
247			`if (argv[i][0] == '\0' \|\| argv[i][1] == '\0')`
248			`continue;`
249
250			`if (argv[i][0] == '-')`
251			`{`
252			`if (library != 0 && (strcmp (argv[i], "-nostdlib") == 0`
253			`\|\| strcmp (argv[i], "-nodefaultlibs") == 0))`
254			`{`
255			`library = 0;`
256			`}`
257			`else if (strncmp (argv[i], "-fmain=", 7) == 0)`
258			`{`
259			`main_class_name = argv[i] + 7;`
260			`added--;`
261			`}`
262			`else if (strcmp (argv[i], "-fhelp") == 0)`
263			`want_spec_file = 0;`
264			`else if (strcmp (argv[i], "-v") == 0)`
265			`{`
266			`if (argc == 2)`
267			`{`
268			/* If they only gave us `-v', don't try to link
269			`in libgcj. */`
270			`library = 0;`
271			`}`
272			`}`
273			`else if (strncmp (argv[i], "-x", 2) == 0)`
274			`saw_speclang = 1;`
275			`else if (strcmp (argv[i], "-C") == 0)`
276			`{`
277			`saw_C = 1;`
278			`want_spec_file = 0;`
279			`if (library != 0)`
280			`added -= 2;`
281			`library = 0;`
282			`will_link = 0;`
283			`}`
284			`else if (strncmp (argv[i], "-fcompile-resource=", 19) == 0)`
285			`{`
286			`saw_resource = 1;`
287			`want_spec_file = 0;`
288			`if (library != 0)`
289			`--added;`
290			`library = 0;`
291			`will_link = 0;`
292			`}`
293			`else if (argv[i][1] == 'D')`
294			`saw_D = 1;`
295			`else if (argv[i][1] == 'g')`
296			`saw_g = 1;`
297			`else if (argv[i][1] == 'O')`
298			`saw_O = 1;`
299			`else if ((argv[i][2] == '\0'`
300			`&& strchr ("bBVDUoeTuIYmLiAI", argv[i][1]) != NULL)`
301			`\|\| strcmp (argv[i], "-Tdata") == 0`
302			`\|\| strcmp (argv[i], "-MT") == 0`
303			`\|\| strcmp (argv[i], "-MF") == 0)`
304			`{`
305			`if (strcmp (argv[i], "-o") == 0)`
306			`saw_o = 1;`
307			`quote = argv[i];`
308			`}`
309			`else if (strcmp (argv[i], "-classpath") == 0`
310			`\|\| strcmp (argv[i], "-bootclasspath") == 0`
311			`\|\| strcmp (argv[i], "-CLASSPATH") == 0`
312			`\|\| strcmp (argv[i], "-encoding") == 0`
313			`\|\| strcmp (argv[i], "-extdirs") == 0)`
314			`{`
315			`quote = argv[i];`
316			`added -= 1;`
317			`}`
318			`else if (library != 0`
319			`&& ((argv[i][2] == '\0'`
320			`&& strchr ("cSEM", argv[i][1]) != NULL)`
321			`\|\| strcmp (argv[i], "-MM") == 0))`
322			`{`
323			`/* Don't specify libraries if we won't link, since that would`
324			`cause a warning. */`
325			`library = 0;`
326			`added -= 2;`
327
328			`/* Remember this so we can confirm -fmain option. */`
329			`will_link = 0;`
330			`}`
331			`else if (strcmp (argv[i], "-d") == 0)`
332			`{`
333			/* `-d' option is for javac compatibility. */
334			`quote = argv[i];`
335			`added -= 1;`
336			`}`
337			`else if (strcmp (argv[i], "-fsyntax-only") == 0`
338			`\|\| strcmp (argv[i], "--syntax-only") == 0)`
339			`{`
340			`library = 0;`
341			`will_link = 0;`
342			`continue;`
343			`}`
344			`else if (strcmp (argv[i], "-save-temps") == 0)`
345			`saw_save_temps = 1;`
346			`else if (strcmp (argv[i], "-static-libgcc") == 0`
347			`\|\| strcmp (argv[i], "-static") == 0)`
348			`shared_libgcc = 0;`
349			`else if (strcmp (argv[i], "-findirect-dispatch") == 0`
350			`\|\| strcmp (argv[i], "--indirect-dispatch") == 0)`
351			`{`
352			`link_for_bc_abi = 1;`
353			`}`
354			`else`
355			`/* Pass other options through. */`
356			`continue;`
357			`}`
358			`else`
359			`{`
360			`int len;`
361
362			`if (saw_speclang)`
363			`{`
364			`saw_speclang = 0;`
365			`continue;`
366			`}`
367
368			`if (saw_resource)`
369			`{`
370			`args[i] \|= RESOURCE_FILE_ARG;`
371			`added += 2; /* for -xjava and -xnone */`
372			`}`
373
374			`if (argv[i][0] == '@')`
375			`{`
376			`args[i] \|= INDIRECT_FILE_ARG;`
377			`indirect_files_count++;`
378			`added += 2; /* for -xjava and -xnone */`
379			`}`
380
381			`len = strlen (argv[i]);`
382			`if (len > 5 && strcmp (argv[i] + len - 5, ".java") == 0)`
383			`{`
384			`args[i] \|= JAVA_FILE_ARG;`
385			`java_files_count++;`
386			`}`
387			`if (len > 6 && strcmp (argv[i] + len - 6, ".class") == 0)`
388			`{`
389			`args[i] \|= CLASS_FILE_ARG;`
390			`class_files_count++;`
391			`}`
392			`if (len > 4`
393			`&& (strcmp (argv[i] + len - 4, ".zip") == 0`
394			`\|\| strcmp (argv[i] + len - 4, ".jar") == 0))`
395			`{`
396			`args[i] \|= ZIP_FILE_ARG;`
397			`zip_files_count++;`
398			`}`
399			`}`
400			`}`
401
402			`if (quote)`
403			`fatal ("argument to '%s' missing\n", quote);`
404
405			`if (saw_D && ! main_class_name)`
406			`fatal ("can't specify '-D' without '--main'\n");`
407
408			`if (main_class_name && ! verify_class_name (main_class_name))`
409			`fatal ("'%s' is not a valid class name", main_class_name);`
410
411			`num_args = argc + added;`
412			`if (saw_resource)`
413			`{`
414			`if (! saw_o)`
415			`fatal ("--resource requires -o");`
416			`}`
417			`if (saw_C)`
418			`{`
419			`num_args += 3;`
420			`if (class_files_count + zip_files_count > 0)`
421			`{`
422			`error ("warning: already-compiled .class files ignored with -C");`
423			`num_args -= class_files_count + zip_files_count;`
424			`class_files_count = 0;`
425			`zip_files_count = 0;`
426			`}`
427			`num_args += 2; /* For -o NONE. */`
428			`if (saw_o)`
429			`fatal ("cannot specify both -C and -o");`
430			`}`
431			`if ((saw_o && java_files_count + class_files_count + zip_files_count > 1)`
432			`\|\| (saw_C && java_files_count > 1)`
433			`\|\| (indirect_files_count > 0`
434			`&& java_files_count + class_files_count + zip_files_count > 0))`
435			`combine_inputs = 1;`
436
437			`if (combine_inputs)`
438			`{`
439			`filelist_filename = make_temp_file ("jx");`
440			`if (filelist_filename == NULL)`
441			`fatal ("cannot create temporary file");`
442			`record_temp_file (filelist_filename, ! saw_save_temps, 0);`
443			`filelist_file = fopen (filelist_filename, "w");`
444			`if (filelist_file == NULL)`
445			`pfatal_with_name (filelist_filename);`
446			`num_args -= java_files_count + class_files_count + zip_files_count;`
447			`num_args += 3; /* for the combined arg "-xjava", and "-xnone" */`
448			`}`
449
450			`if (main_class_name)`
451			`{`
452			`lang_specific_extra_outfiles++;`
453			`}`
454			`if (saw_g + saw_O == 0)`
455			`num_args++;`
456			`num_args++;`
457			`/* An additional entry for the classpath. */`
458			`num_args++;`
459
460			`if (combine_inputs \|\| indirect_files_count > 0)`
461			`num_args += 1; /* for "-ffilelist-file" */`
462			`if (combine_inputs && indirect_files_count > 0)`
463			`fatal("using both @FILE with multiple files not implemented");`
464
465			`/* There's no point adding -shared-libgcc if we don't have a shared`
466			`libgcc. */`
467			`#ifndef ENABLE_SHARED_LIBGCC`
468			`shared_libgcc = 0;`
469			`#endif`
470
471			`if (java_files_count > 0)`
472			`++num_args;`
473
474			`num_args += shared_libgcc;`
475
476			`num_args += link_for_bc_abi;`
477
478			`arglist = XNEWVEC (const char *, num_args + 1);`
479			`j = 0;`
480
481			`arglist[j++] = argv[0];`
482
483			`if (combine_inputs \|\| indirect_files_count > 0)`
484			`arglist[j++] = "-ffilelist-file";`
485
486			`if (combine_inputs)`
487			`{`
488			`arglist[j++] = "-xjava";`
489			`arglist[j++] = filelist_filename;`
490			`arglist[j++] = "-xnone";`
491			`}`
492
493			`if (java_files_count > 0)`
494			`arglist[j++] = "-fsaw-java-file";`
495
496			`jcf_path_init ();`
497			`for (i = 1; i < argc; i++, j++)`
498			`{`
499			`arglist[j] = argv[i];`
500
501			`if ((args[i] & PARAM_ARG))`
502			`continue;`
503
504			`if ((args[i] & RESOURCE_FILE_ARG) != 0)`
505			`{`
506			`arglist[j++] = "-xjava";`
507			`arglist[j++] = argv[i];`
508			`arglist[j] = "-xnone";`
509			`}`
510
511			`if (argv[i][0] == '-' && argv[i][1] == 'I')`
512			`{`
513			`const char *arg;`
514			`if (argv[i][2] == '\0')`
515			`{`
516			`gcc_assert (i + 1 < argc && (args[i + 1] & PARAM_ARG) != 0);`
517			`arg = argv[i + 1];`
518			`/* Drop the argument. */`
519			`++i;`
520			`}`
521			`else`
522			`arg = &argv[i][2];`
523			`jcf_path_include_arg (arg);`
524			`--j;`
525			`continue;`
526			`}`
527			`if (! strcmp (argv[i], "-classpath")`
528			`\|\| ! strcmp (argv[i], "-CLASSPATH"))`
529			`{`
530			`jcf_path_classpath_arg (argv[i + 1]);`
531			`++i;`
532			`--j;`
533			`continue;`
534			`}`
535			`if (! strcmp (argv[i], "-bootclasspath"))`
536			`{`
537			`jcf_path_bootclasspath_arg (argv[i + 1]);`
538			`++i;`
539			`--j;`
540			`continue;`
541			`}`
542			`if (! strncmp (argv[i], "-fCLASSPATH=", 12)`
543			`\|\| ! strncmp (argv[i], "-fclasspath=", 12))`
544			`{`
545			`const char *p = strchr (argv[i], '=');`
546			`jcf_path_classpath_arg (p + 1);`
547			`--j;`
548			`continue;`
549			`}`
550			`if (! strncmp (argv[i], "-fbootclasspath=", 16))`
551			`{`
552			`const char *p = strchr (argv[i], '=');`
553			`jcf_path_bootclasspath_arg (p + 1);`
554			`--j;`
555			`continue;`
556			`}`
557			`if (! strcmp (argv[i], "-extdirs"))`
558			`{`
559			`jcf_path_extdirs_arg (argv[i + 1]);`
560			`++i;`
561			`--j;`
562			`continue;`
563			`}`
564
565			`if (strcmp (argv[i], "-encoding") == 0)`
566			`{`
567			`arglist[j] = concat ("-f", argv[i]+1, "=", argv[i+1], NULL);`
568			`i++;`
569			`continue;`
570			`}`
571
572			`if (strcmp (argv[i], "-d") == 0)`
573			`{`
574			`arglist[j] = concat ("-foutput-class-dir=", argv[i + 1], NULL);`
575			`++i;`
576			`continue;`
577			`}`
578
579			`if (spec_file == NULL && strncmp (argv[i], "-L", 2) == 0)`
580			`spec_file = find_spec_file (argv[i] + 2);`
581
582			`if (strncmp (argv[i], "-fmain=", 7) == 0)`
583			`{`
584			`if (! will_link)`
585			`fatal ("cannot specify 'main' class when not linking");`
586			`--j;`
587			`continue;`
588			`}`
589
590			`if ((args[i] & INDIRECT_FILE_ARG) != 0)`
591			`{`
592			`arglist[j++] = "-xjava";`
593			`arglist[j++] = argv[i]+1; /* Drop '@'. */`
594			`arglist[j] = "-xnone";`
595			`}`
596
597			`if ((args[i] & (CLASS_FILE_ARG\|ZIP_FILE_ARG)) && saw_C)`
598			`{`
599			`--j;`
600			`continue;`
601			`}`
602
603			`if (combine_inputs`
604			`&& (args[i] & (CLASS_FILE_ARG\|JAVA_FILE_ARG\|ZIP_FILE_ARG)) != 0)`
605			`{`
606			`fputs (argv[i], filelist_file);`
607			`fputc ('\n', filelist_file);`
608			`--j;`
609			`continue;`
610			`}`
611			`}`
612
613			`/* Handle classpath setting. We specify the bootclasspath since`
614			`that requires the fewest changes to our existing code... */`
615			`jcf_path_seal (0);`
616			`arglist[j++] = jcf_path_compute ("-fbootclasspath=");`
617
618			`if (combine_inputs)`
619			`{`
620			`if (fclose (filelist_file))`
621			`pfatal_with_name (filelist_filename);`
622			`}`
623
624			`/* If we saw no -O or -g option, default to -g1, for javac compatibility. */`
625			`if (saw_g + saw_O == 0)`
626			`arglist[j++] = "-g1";`
627
628			`/* Read the specs file corresponding to libgcj.`
629			`If we didn't find the spec file on the -L path, then we hope it`
630			`is somewhere in the standard install areas. */`
631			`if (want_spec_file)`
632			`arglist[j++] = spec_file == NULL ? "-specs=libgcj.spec" : spec_file;`
633
634			`if (saw_C)`
635			`{`
636			`arglist[j++] = "-fsyntax-only";`
637			`arglist[j++] = "-femit-class-files";`
638			`arglist[j++] = "-S";`
639			`arglist[j++] = "-o";`
640			`arglist[j++] = "NONE";`
641			`}`
642
643			`if (shared_libgcc)`
644			`arglist[j++] = "-shared-libgcc";`
645
646			`if (link_for_bc_abi)`
647			`arglist[j++] = "-s-bc-abi";`
648
649			`arglist[j] = NULL;`
650
651			`*in_argc = j;`
652			`*in_argv = arglist;`
653			`*in_added_libraries = added_libraries;`
654			`}`
655
656			`int`
657			`lang_specific_pre_link (void)`
658			`{`
659			`int err;`
660			`if (main_class_name == NULL)`
661			`return 0;`
662			/* Append `main' to make the filename unique and allow
663
664			`gcj --main=hello -save-temps hello.java`
665
666			to work. jvgenmain needs to strip this `main' to arrive at the correct
667			class name. Append dummy `.c' that can be stripped by set_input so %b
668			`is correct. */`
669			`set_input (concat (main_class_name, "main.c", NULL));`
670			`err = do_spec (jvgenmain_spec);`
671			`if (err == 0)`
672			`{`
673			`/* Shift the outfiles array so the generated main comes first.`
674			`This is important when linking against (non-shared) libraries,`
675			`since otherwise we risk (a) nothing getting linked or`
676			`(b) 'main' getting picked up from a library. */`
677			`int i = n_infiles;`
678			`const char *generated = outfiles[i];`
679			`while (--i >= 0)`
680			`outfiles[i + 1] = outfiles[i];`
681			`outfiles[0] = generated;`
682			`}`
683			`return err;`
684			`}`