1 /* 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 Free Software Foundation, Inc.
5 This file is part of GNU CC.
7 GNU CC is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
12 GNU CC is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GNU CC; see the file COPYING. If not, write to
19 the Free Software Foundation, 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA.
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. */
28 #include "coretypes.h"
32 /* Name of spec file. */
33 #define SPEC_FILE "libgcj.spec"
35 /* This bit is set if we saw a `-xfoo' language specification. */
36 #define LANGSPEC (1<<1)
37 /* True if this arg is a parameter to the previous option-taking arg. */
38 #define PARAM_ARG (1<<2)
39 /* True if this arg is a .java input file name. */
40 #define JAVA_FILE_ARG (1<<3)
41 /* True if this arg is a .class input file name. */
42 #define CLASS_FILE_ARG (1<<4)
43 /* True if this arg is a .zip or .jar input file name. */
44 #define ZIP_FILE_ARG (1<<5)
45 /* True if this arg is @FILE - where FILE contains a list of filenames. */
46 #define INDIRECT_FILE_ARG (1<<6)
47 /* True if this arg is a resource file. */
48 #define RESOURCE_FILE_ARG (1<<7)
50 static char *find_spec_file
PARAMS ((const char *));
51 static int verify_class_name
PARAMS ((const char *));
53 static const char *main_class_name
= NULL
;
54 int lang_specific_extra_outfiles
= 0;
56 /* True if we should add -shared-libgcc to the command-line. */
57 int shared_libgcc
= 1;
59 static const char jvgenmain_spec
[] =
60 "jvgenmain %{D*} %b %m.i |\n\
62 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a*}\
64 %{v:-version} %{pg:-p} %{p}\
65 %<fbounds-check %<fno-bounds-check\
66 %<fassume-compiled %<fno-assume-compiled\
67 %<fcompile-resource* %<fassert %<fno-assert \
68 %<femit-class-file %<femit-class-files %<fencoding*\
69 %<fuse-boehm-gc %<fhash-synchronization %<fjni\
70 %<findirect-dispatch \
71 %<fno-store-check %<foutput-class-dir\
72 %<fclasspath* %<fCLASSPATH* %<fbootclasspath*\
74 %<fuse-divide-subroutine %<fno-use-divide-subroutine\
75 %<fcheck-references %<fno-check-references\
77 %{f*} -fdollars-in-identifiers\
79 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
80 %{S:%W{o*}%{!o*:-o %b.s}}\
83 /* Return full path name of spec file if it is in DIR, or NULL if
93 spec
= xmalloc (strlen (dir
) + sizeof (SPEC_FILE
)
94 + sizeof ("-specs=") + 4);
95 strcpy (spec
, "-specs=");
99 strcat (spec
, SPEC_FILE
);
100 if (! stat (spec
+ x
, &sb
))
106 /* FIXME: these should come from lex.h. */
107 #define JAVA_START_CHAR_P(c) (c < 128 && (ISIDST (c) || c == '$'))
108 #define JAVA_PART_CHAR_P(c) (c < 128 \
111 || (c >= 0x00 && c <= 0x08) \
112 || (c >= 0x0e && c <= 0x1b) \
115 /* Verify that NAME is a valid Java class name that might contain
116 `main'. Return 0 on failure. */
118 verify_class_name (name
)
121 /* FIXME: what encoding do we use for command-line arguments? For
122 now we assume plain ASCII, which of course is wrong. */
126 if (ch
< 0 || ! JAVA_START_CHAR_P (ch
))
133 /* We found a break between class names. Next character
134 must be an identifier start again. */
137 if (! JAVA_PART_CHAR_P (ch
))
146 lang_specific_driver (in_argc
, in_argv
, in_added_libraries
)
148 const char *const **in_argv
;
149 int *in_added_libraries
;
153 /* If nonzero, the user gave us the `-v' flag. */
154 int saw_verbose_flag
= 0;
156 int saw_save_temps
= 0;
158 /* This will be 0 if we encounter a situation where we should not
162 /* This will be 1 if multiple input files (.class and/or .java)
163 should be passed to a single jc1 invocation. */
164 int combine_inputs
= 0;
166 /* Number of .java and .class source file arguments seen. */
167 int java_files_count
= 0;
168 int class_files_count
= 0;
169 /* Number of .zip or .jar file arguments seen. */
170 int zip_files_count
= 0;
171 /* Number of '@FILES' arguments seen. */
172 int indirect_files_count
= 0;
174 /* Name of file containing list of files to compile. */
175 char *filelist_filename
= 0;
177 FILE *filelist_file
= 0;
179 /* The number of arguments being added to what's in argv, other than
183 /* Used to track options that take arguments, so we don't go wrapping
184 those with -xc++/-xnone. */
185 const char *quote
= NULL
;
187 /* The new argument list will be contained in this. */
188 const char **arglist
;
190 /* Nonzero if we saw a `-xfoo' language specification on the
191 command line. Used to avoid adding our own -xc++ if the user
192 already gave a language for the file. */
193 int saw_speclang
= 0;
196 /* "-lm" or "-lmath" if it appears on the command line. */
197 const char *saw_math ATTRIBUTE_UNUSED
= 0;
199 /* "-lc" if it appears on the command line. */
200 const char *saw_libc ATTRIBUTE_UNUSED
= 0;
202 /* "-lgcjgc" if it appears on the command line. */
203 const char *saw_gc ATTRIBUTE_UNUSED
= 0;
205 /* Saw `-l' option for the thread library. */
206 const char *saw_threadlib ATTRIBUTE_UNUSED
= 0;
208 /* Saw `-lgcj' on command line. */
209 int saw_libgcj ATTRIBUTE_UNUSED
= 0;
212 /* Saw --resource, -C or -o options, respectively. */
213 int saw_resource
= 0;
217 /* Saw some -O* or -g* option, respectively. */
221 /* Saw a `-D' option. */
224 /* An array used to flag each argument that needs a bit set for
225 LANGSPEC, MATHLIB, WITHLIBC, or GCLIB. */
228 /* The total number of arguments with the new stuff. */
231 /* The argument list. */
232 const char *const *argv
;
234 /* The number of libraries added in. */
237 /* The total number of arguments with the new stuff. */
240 /* Nonzero if linking is supposed to happen. */
243 /* Nonzero if we want to find the spec file. */
244 int want_spec_file
= 1;
246 /* The argument we use to specify the spec file. */
247 char *spec_file
= NULL
;
251 added_libraries
= *in_added_libraries
;
253 args
= xcalloc (argc
, sizeof (int));
255 for (i
= 1; i
< argc
; i
++)
257 /* If the previous option took an argument, we swallow it here. */
261 args
[i
] |= PARAM_ARG
;
265 /* We don't do this anymore, since we don't get them with minus
267 if (argv
[i
][0] == '\0' || argv
[i
][1] == '\0')
270 if (argv
[i
][0] == '-')
272 if (library
!= 0 && (strcmp (argv
[i
], "-nostdlib") == 0
273 || strcmp (argv
[i
], "-nodefaultlibs") == 0))
277 else if (strncmp (argv
[i
], "-fmain=", 7) == 0)
279 main_class_name
= argv
[i
] + 7;
282 else if (strcmp (argv
[i
], "-fhelp") == 0)
284 else if (strcmp (argv
[i
], "-v") == 0)
286 saw_verbose_flag
= 1;
289 /* If they only gave us `-v', don't try to link
294 else if (strncmp (argv
[i
], "-x", 2) == 0)
296 else if (strcmp (argv
[i
], "-C") == 0)
305 else if (strncmp (argv
[i
], "-fcompile-resource=", 19) == 0)
314 else if (argv
[i
][1] == 'D')
316 else if (argv
[i
][1] == 'g')
318 else if (argv
[i
][1] == 'O')
320 else if ((argv
[i
][2] == '\0'
321 && (char *)strchr ("bBVDUoeTuIYmLiA", argv
[i
][1]) != NULL
)
322 || strcmp (argv
[i
], "-Tdata") == 0
323 || strcmp (argv
[i
], "-MT") == 0
324 || strcmp (argv
[i
], "-MF") == 0)
326 if (strcmp (argv
[i
], "-o") == 0)
330 else if (strcmp(argv
[i
], "-classpath") == 0
331 || strcmp(argv
[i
], "-bootclasspath") == 0
332 || strcmp(argv
[i
], "-CLASSPATH") == 0)
337 else if (library
!= 0
338 && ((argv
[i
][2] == '\0'
339 && (char *) strchr ("cSEM", argv
[i
][1]) != NULL
)
340 || strcmp (argv
[i
], "-MM") == 0))
342 /* Don't specify libraries if we won't link, since that would
347 /* Remember this so we can confirm -fmain option. */
350 else if (strcmp (argv
[i
], "-d") == 0)
352 /* `-d' option is for javac compatibility. */
356 else if (strcmp (argv
[i
], "-fsyntax-only") == 0
357 || strcmp (argv
[i
], "--syntax-only") == 0)
364 else if (strcmp (argv
[i
], "-save-temps") == 0)
366 else if (strcmp (argv
[i
], "-static-libgcc") == 0
367 || strcmp (argv
[i
], "-static") == 0)
370 /* Pass other options through. */
385 args
[i
] |= RESOURCE_FILE_ARG
;
386 added
+= 2; /* for -xjava and -xnone */
389 if (argv
[i
][0] == '@')
391 args
[i
] |= INDIRECT_FILE_ARG
;
392 indirect_files_count
++;
393 added
+= 2; /* for -xjava and -xnone */
396 len
= strlen (argv
[i
]);
397 if (len
> 5 && strcmp (argv
[i
] + len
- 5, ".java") == 0)
399 args
[i
] |= JAVA_FILE_ARG
;
402 if (len
> 6 && strcmp (argv
[i
] + len
- 6, ".class") == 0)
404 args
[i
] |= CLASS_FILE_ARG
;
408 && (strcmp (argv
[i
] + len
- 4, ".zip") == 0
409 || strcmp (argv
[i
] + len
- 4, ".jar") == 0))
411 args
[i
] |= ZIP_FILE_ARG
;
418 fatal ("argument to `%s' missing\n", quote
);
420 if (saw_D
&& ! main_class_name
)
421 fatal ("can't specify `-D' without `--main'\n");
423 if (main_class_name
&& ! verify_class_name (main_class_name
))
424 fatal ("`%s' is not a valid class name", main_class_name
);
426 num_args
= argc
+ added
;
430 fatal ("--resource requires -o");
435 if (class_files_count
+ zip_files_count
> 0)
437 error ("warning: already-compiled .class files ignored with -C");
438 num_args
-= class_files_count
+ zip_files_count
;
439 class_files_count
= 0;
442 num_args
+= 2; /* For -o NONE. */
444 fatal ("cannot specify both -C and -o");
446 if ((saw_o
&& java_files_count
+ class_files_count
+ zip_files_count
> 1)
447 || (saw_C
&& java_files_count
> 1)
448 || (indirect_files_count
> 0
449 && java_files_count
+ class_files_count
+ zip_files_count
> 0))
454 filelist_filename
= make_temp_file ("jx");
455 if (filelist_filename
== NULL
)
456 fatal ("cannot create temporary file");
457 record_temp_file (filelist_filename
, ! saw_save_temps
, 0);
458 filelist_file
= fopen (filelist_filename
, "w");
459 if (filelist_file
== NULL
)
460 pfatal_with_name (filelist_filename
);
461 num_args
-= java_files_count
+ class_files_count
+ zip_files_count
;
462 num_args
+= 2; /* for the combined arg and "-xjava" */
464 /* If we know we don't have to do anything, bail now. */
466 if (! added
&& ! library
&& main_class_name
== NULL
&& ! saw_C
)
475 lang_specific_extra_outfiles
++;
477 if (saw_g
+ saw_O
== 0)
481 if (combine_inputs
|| indirect_files_count
> 0)
482 num_args
+= 1; /* for "-ffilelist-file" */
483 if (combine_inputs
&& indirect_files_count
> 0)
484 fatal("using both @FILE with multiple files not implemented");
486 /* There's no point adding -shared-libgcc if we don't have a shared
488 #ifndef ENABLE_SHARED_LIBGCC
492 num_args
+= shared_libgcc
;
494 arglist
= xmalloc ((num_args
+ 1) * sizeof (char *));
497 for (i
= 0; i
< argc
; i
++, j
++)
499 arglist
[j
] = argv
[i
];
501 if ((args
[i
] & PARAM_ARG
) || i
== 0)
504 if ((args
[i
] & RESOURCE_FILE_ARG
) != 0)
506 arglist
[j
++] = "-xjava";
507 arglist
[j
++] = argv
[i
];
508 arglist
[j
] = "-xnone";
511 if (strcmp (argv
[i
], "-classpath") == 0
512 || strcmp (argv
[i
], "-bootclasspath") == 0
513 || strcmp (argv
[i
], "-CLASSPATH") == 0)
515 arglist
[j
] = concat ("-f", argv
[i
]+1, "=", argv
[i
+1], NULL
);
520 if (strcmp (argv
[i
], "-d") == 0)
522 arglist
[j
] = concat ("-foutput-class-dir=", argv
[i
+ 1], NULL
);
527 if (spec_file
== NULL
&& strncmp (argv
[i
], "-L", 2) == 0)
528 spec_file
= find_spec_file (argv
[i
] + 2);
530 if (strncmp (argv
[i
], "-fmain=", 7) == 0)
533 fatal ("cannot specify `main' class when not linking");
538 if ((args
[i
] & INDIRECT_FILE_ARG
) != 0)
540 arglist
[j
++] = "-xjava";
541 arglist
[j
++] = argv
[i
]+1; /* Drop '@'. */
542 arglist
[j
] = "-xnone";
545 if ((args
[i
] & (CLASS_FILE_ARG
|ZIP_FILE_ARG
)) && saw_C
)
552 && (args
[i
] & (CLASS_FILE_ARG
|JAVA_FILE_ARG
|ZIP_FILE_ARG
)) != 0)
554 fputs (argv
[i
], filelist_file
);
555 fputc ('\n', filelist_file
);
561 if (combine_inputs
|| indirect_files_count
> 0)
562 arglist
[j
++] = "-ffilelist-file";
566 if (fclose (filelist_file
))
567 pfatal_with_name (filelist_filename
);
568 arglist
[j
++] = "-xjava";
569 arglist
[j
++] = filelist_filename
;
572 /* If we saw no -O or -g option, default to -g1, for javac compatibility. */
573 if (saw_g
+ saw_O
== 0)
574 arglist
[j
++] = "-g1";
576 /* Read the specs file corresponding to libgcj.
577 If we didn't find the spec file on the -L path, then we hope it
578 is somewhere in the standard install areas. */
580 arglist
[j
++] = spec_file
== NULL
? "-specs=libgcj.spec" : spec_file
;
584 arglist
[j
++] = "-fsyntax-only";
585 arglist
[j
++] = "-femit-class-files";
588 arglist
[j
++] = "NONE";
592 arglist
[j
++] = "-shared-libgcc";
598 *in_added_libraries
= added_libraries
;
602 lang_specific_pre_link ()
605 if (main_class_name
== NULL
)
607 /* Append `main' to make the filename unique and allow
609 gcj --main=hello -save-temps hello.java
611 to work. jvgenmain needs to strip this `main' to arrive at the correct
612 class name. Append dummy `.c' that can be stripped by set_input so %b
614 set_input (concat (main_class_name
, "main.c", NULL
));
615 err
= do_spec (jvgenmain_spec
);
618 /* Shift the outfiles array so the generated main comes first.
619 This is important when linking against (non-shared) libraries,
620 since otherwise we risk (a) nothing getting linked or
621 (b) 'main' getting picked up from a library. */
623 const char *generated
= outfiles
[i
];
625 outfiles
[i
+ 1] = outfiles
[i
];
626 outfiles
[0] = generated
;
631 /* Table of language-specific spec functions. */
632 const struct spec_function lang_specific_spec_functions
[] =