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, 2003
4 Free Software Foundation, Inc.
6 This file is part of GCC.
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 2, or (at your option)
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.
18 You should have received a copy of the GNU General Public License
19 along with GCC; see the file COPYING. If not, write to
20 the Free Software Foundation, 59 Temple Place - Suite 330,
21 Boston, MA 02111-1307, USA.
23 Java and all Java-based marks are trademarks or registered trademarks
24 of Sun Microsystems, Inc. in the United States and other countries.
25 The Free Software Foundation is independent of Sun Microsystems, Inc. */
29 #include "coretypes.h"
33 /* Name of spec file. */
34 #define SPEC_FILE "libgcj.spec"
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)
51 static char *find_spec_file (const char *);
52 static int verify_class_name (const char *);
54 static const char *main_class_name
= NULL
;
55 int lang_specific_extra_outfiles
= 0;
57 /* True if we should add -shared-libgcc to the command-line. */
58 int shared_libgcc
= 1;
60 static const char jvgenmain_spec
[] =
61 "jvgenmain %{D*} %b %m.i |\n\
63 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a*}\
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 \
72 %<fno-store-check %<foutput-class-dir\
73 %<fclasspath* %<fCLASSPATH* %<fbootclasspath*\
75 %<fuse-divide-subroutine %<fno-use-divide-subroutine\
76 %<fcheck-references %<fno-check-references\
78 %{f*} -fdollars-in-identifiers\
80 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
81 %{S:%W{o*}%{!o*:-o %b.s}}\
84 /* Return full path name of spec file if it is in DIR, or NULL if
87 find_spec_file (const char *dir
)
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 (const char *name
)
120 /* FIXME: what encoding do we use for command-line arguments? For
121 now we assume plain ASCII, which of course is wrong. */
125 if (ch
< 0 || ! JAVA_START_CHAR_P (ch
))
132 /* We found a break between class names. Next character
133 must be an identifier start again. */
136 if (! JAVA_PART_CHAR_P (ch
))
145 lang_specific_driver (int *in_argc
, const char *const **in_argv
,
146 int *in_added_libraries
)
150 /* If nonzero, the user gave us the `-v' flag. */
151 int saw_verbose_flag
= 0;
153 int saw_save_temps
= 0;
155 /* This will be 0 if we encounter a situation where we should not
159 /* This will be 1 if multiple input files (.class and/or .java)
160 should be passed to a single jc1 invocation. */
161 int combine_inputs
= 0;
163 /* Number of .java and .class source file arguments seen. */
164 int java_files_count
= 0;
165 int class_files_count
= 0;
166 /* Number of .zip or .jar file arguments seen. */
167 int zip_files_count
= 0;
168 /* Number of '@FILES' arguments seen. */
169 int indirect_files_count
= 0;
171 /* Name of file containing list of files to compile. */
172 char *filelist_filename
= 0;
174 FILE *filelist_file
= 0;
176 /* The number of arguments being added to what's in argv, other than
180 /* Used to track options that take arguments, so we don't go wrapping
181 those with -xc++/-xnone. */
182 const char *quote
= NULL
;
184 /* The new argument list will be contained in this. */
185 const char **arglist
;
187 /* Nonzero if we saw a `-xfoo' language specification on the
188 command line. Used to avoid adding our own -xc++ if the user
189 already gave a language for the file. */
190 int saw_speclang
= 0;
193 /* "-lm" or "-lmath" if it appears on the command line. */
194 const char *saw_math ATTRIBUTE_UNUSED
= 0;
196 /* "-lc" if it appears on the command line. */
197 const char *saw_libc ATTRIBUTE_UNUSED
= 0;
199 /* "-lgcjgc" if it appears on the command line. */
200 const char *saw_gc ATTRIBUTE_UNUSED
= 0;
202 /* Saw `-l' option for the thread library. */
203 const char *saw_threadlib ATTRIBUTE_UNUSED
= 0;
205 /* Saw `-lgcj' on command line. */
206 int saw_libgcj ATTRIBUTE_UNUSED
= 0;
209 /* Saw --resource, -C or -o options, respectively. */
210 int saw_resource
= 0;
214 /* Saw some -O* or -g* option, respectively. */
218 /* Saw a `-D' option. */
221 /* An array used to flag each argument that needs a bit set for
222 LANGSPEC, MATHLIB, WITHLIBC, or GCLIB. */
225 /* The total number of arguments with the new stuff. */
228 /* The argument list. */
229 const char *const *argv
;
231 /* The number of libraries added in. */
234 /* The total number of arguments with the new stuff. */
237 /* Nonzero if linking is supposed to happen. */
240 /* Nonzero if we want to find the spec file. */
241 int want_spec_file
= 1;
243 /* The argument we use to specify the spec file. */
244 char *spec_file
= NULL
;
248 added_libraries
= *in_added_libraries
;
250 args
= xcalloc (argc
, sizeof (int));
252 for (i
= 1; i
< argc
; i
++)
254 /* If the previous option took an argument, we swallow it here. */
258 args
[i
] |= PARAM_ARG
;
262 /* We don't do this anymore, since we don't get them with minus
264 if (argv
[i
][0] == '\0' || argv
[i
][1] == '\0')
267 if (argv
[i
][0] == '-')
269 if (library
!= 0 && (strcmp (argv
[i
], "-nostdlib") == 0
270 || strcmp (argv
[i
], "-nodefaultlibs") == 0))
274 else if (strncmp (argv
[i
], "-fmain=", 7) == 0)
276 main_class_name
= argv
[i
] + 7;
279 else if (strcmp (argv
[i
], "-fhelp") == 0)
281 else if (strcmp (argv
[i
], "-v") == 0)
283 saw_verbose_flag
= 1;
286 /* If they only gave us `-v', don't try to link
291 else if (strncmp (argv
[i
], "-x", 2) == 0)
293 else if (strcmp (argv
[i
], "-C") == 0)
302 else if (strncmp (argv
[i
], "-fcompile-resource=", 19) == 0)
311 else if (argv
[i
][1] == 'D')
313 else if (argv
[i
][1] == 'g')
315 else if (argv
[i
][1] == 'O')
317 else if ((argv
[i
][2] == '\0'
318 && strchr ("bBVDUoeTuIYmLiA", argv
[i
][1]) != NULL
)
319 || strcmp (argv
[i
], "-Tdata") == 0
320 || strcmp (argv
[i
], "-MT") == 0
321 || strcmp (argv
[i
], "-MF") == 0)
323 if (strcmp (argv
[i
], "-o") == 0)
327 else if (strcmp(argv
[i
], "-classpath") == 0
328 || strcmp(argv
[i
], "-bootclasspath") == 0
329 || strcmp(argv
[i
], "-CLASSPATH") == 0)
334 else if (library
!= 0
335 && ((argv
[i
][2] == '\0'
336 && strchr ("cSEM", argv
[i
][1]) != NULL
)
337 || strcmp (argv
[i
], "-MM") == 0))
339 /* Don't specify libraries if we won't link, since that would
344 /* Remember this so we can confirm -fmain option. */
347 else if (strcmp (argv
[i
], "-d") == 0)
349 /* `-d' option is for javac compatibility. */
353 else if (strcmp (argv
[i
], "-fsyntax-only") == 0
354 || strcmp (argv
[i
], "--syntax-only") == 0)
361 else if (strcmp (argv
[i
], "-save-temps") == 0)
363 else if (strcmp (argv
[i
], "-static-libgcc") == 0
364 || strcmp (argv
[i
], "-static") == 0)
367 /* Pass other options through. */
382 args
[i
] |= RESOURCE_FILE_ARG
;
383 added
+= 2; /* for -xjava and -xnone */
386 if (argv
[i
][0] == '@')
388 args
[i
] |= INDIRECT_FILE_ARG
;
389 indirect_files_count
++;
390 added
+= 2; /* for -xjava and -xnone */
393 len
= strlen (argv
[i
]);
394 if (len
> 5 && strcmp (argv
[i
] + len
- 5, ".java") == 0)
396 args
[i
] |= JAVA_FILE_ARG
;
399 if (len
> 6 && strcmp (argv
[i
] + len
- 6, ".class") == 0)
401 args
[i
] |= CLASS_FILE_ARG
;
405 && (strcmp (argv
[i
] + len
- 4, ".zip") == 0
406 || strcmp (argv
[i
] + len
- 4, ".jar") == 0))
408 args
[i
] |= ZIP_FILE_ARG
;
415 fatal ("argument to `%s' missing\n", quote
);
417 if (saw_D
&& ! main_class_name
)
418 fatal ("can't specify `-D' without `--main'\n");
420 if (main_class_name
&& ! verify_class_name (main_class_name
))
421 fatal ("`%s' is not a valid class name", main_class_name
);
423 num_args
= argc
+ added
;
427 fatal ("--resource requires -o");
432 if (class_files_count
+ zip_files_count
> 0)
434 error ("warning: already-compiled .class files ignored with -C");
435 num_args
-= class_files_count
+ zip_files_count
;
436 class_files_count
= 0;
439 num_args
+= 2; /* For -o NONE. */
441 fatal ("cannot specify both -C and -o");
443 if ((saw_o
&& java_files_count
+ class_files_count
+ zip_files_count
> 1)
444 || (saw_C
&& java_files_count
> 1)
445 || (indirect_files_count
> 0
446 && java_files_count
+ class_files_count
+ zip_files_count
> 0))
451 filelist_filename
= make_temp_file ("jx");
452 if (filelist_filename
== NULL
)
453 fatal ("cannot create temporary file");
454 record_temp_file (filelist_filename
, ! saw_save_temps
, 0);
455 filelist_file
= fopen (filelist_filename
, "w");
456 if (filelist_file
== NULL
)
457 pfatal_with_name (filelist_filename
);
458 num_args
-= java_files_count
+ class_files_count
+ zip_files_count
;
459 num_args
+= 2; /* for the combined arg and "-xjava" */
461 /* If we know we don't have to do anything, bail now. */
463 if (! added
&& ! library
&& main_class_name
== NULL
&& ! saw_C
)
472 lang_specific_extra_outfiles
++;
474 if (saw_g
+ saw_O
== 0)
478 if (combine_inputs
|| indirect_files_count
> 0)
479 num_args
+= 1; /* for "-ffilelist-file" */
480 if (combine_inputs
&& indirect_files_count
> 0)
481 fatal("using both @FILE with multiple files not implemented");
483 /* There's no point adding -shared-libgcc if we don't have a shared
485 #ifndef ENABLE_SHARED_LIBGCC
489 num_args
+= shared_libgcc
;
491 arglist
= xmalloc ((num_args
+ 1) * sizeof (char *));
494 for (i
= 0; i
< argc
; i
++, j
++)
496 arglist
[j
] = argv
[i
];
498 if ((args
[i
] & PARAM_ARG
) || i
== 0)
501 if ((args
[i
] & RESOURCE_FILE_ARG
) != 0)
503 arglist
[j
++] = "-xjava";
504 arglist
[j
++] = argv
[i
];
505 arglist
[j
] = "-xnone";
508 if (strcmp (argv
[i
], "-classpath") == 0
509 || strcmp (argv
[i
], "-bootclasspath") == 0
510 || strcmp (argv
[i
], "-CLASSPATH") == 0)
512 arglist
[j
] = concat ("-f", argv
[i
]+1, "=", argv
[i
+1], NULL
);
517 if (strcmp (argv
[i
], "-d") == 0)
519 arglist
[j
] = concat ("-foutput-class-dir=", argv
[i
+ 1], NULL
);
524 if (spec_file
== NULL
&& strncmp (argv
[i
], "-L", 2) == 0)
525 spec_file
= find_spec_file (argv
[i
] + 2);
527 if (strncmp (argv
[i
], "-fmain=", 7) == 0)
530 fatal ("cannot specify `main' class when not linking");
535 if ((args
[i
] & INDIRECT_FILE_ARG
) != 0)
537 arglist
[j
++] = "-xjava";
538 arglist
[j
++] = argv
[i
]+1; /* Drop '@'. */
539 arglist
[j
] = "-xnone";
542 if ((args
[i
] & (CLASS_FILE_ARG
|ZIP_FILE_ARG
)) && saw_C
)
549 && (args
[i
] & (CLASS_FILE_ARG
|JAVA_FILE_ARG
|ZIP_FILE_ARG
)) != 0)
551 fputs (argv
[i
], filelist_file
);
552 fputc ('\n', filelist_file
);
558 if (combine_inputs
|| indirect_files_count
> 0)
559 arglist
[j
++] = "-ffilelist-file";
563 if (fclose (filelist_file
))
564 pfatal_with_name (filelist_filename
);
565 arglist
[j
++] = "-xjava";
566 arglist
[j
++] = filelist_filename
;
569 /* If we saw no -O or -g option, default to -g1, for javac compatibility. */
570 if (saw_g
+ saw_O
== 0)
571 arglist
[j
++] = "-g1";
573 /* Read the specs file corresponding to libgcj.
574 If we didn't find the spec file on the -L path, then we hope it
575 is somewhere in the standard install areas. */
577 arglist
[j
++] = spec_file
== NULL
? "-specs=libgcj.spec" : spec_file
;
581 arglist
[j
++] = "-fsyntax-only";
582 arglist
[j
++] = "-femit-class-files";
585 arglist
[j
++] = "NONE";
589 arglist
[j
++] = "-shared-libgcc";
595 *in_added_libraries
= added_libraries
;
599 lang_specific_pre_link (void)
602 if (main_class_name
== NULL
)
604 /* Append `main' to make the filename unique and allow
606 gcj --main=hello -save-temps hello.java
608 to work. jvgenmain needs to strip this `main' to arrive at the correct
609 class name. Append dummy `.c' that can be stripped by set_input so %b
611 set_input (concat (main_class_name
, "main.c", NULL
));
612 err
= do_spec (jvgenmain_spec
);
615 /* Shift the outfiles array so the generated main comes first.
616 This is important when linking against (non-shared) libraries,
617 since otherwise we risk (a) nothing getting linked or
618 (b) 'main' getting picked up from a library. */
620 const char *generated
= outfiles
[i
];
622 outfiles
[i
+ 1] = outfiles
[i
];
623 outfiles
[0] = generated
;
628 /* Table of language-specific spec functions. */
629 const struct spec_function lang_specific_spec_functions
[] =