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
PARAMS ((const char *));
52 static int verify_class_name
PARAMS ((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
94 spec
= xmalloc (strlen (dir
) + sizeof (SPEC_FILE
)
95 + sizeof ("-specs=") + 4);
96 strcpy (spec
, "-specs=");
100 strcat (spec
, SPEC_FILE
);
101 if (! stat (spec
+ x
, &sb
))
107 /* FIXME: these should come from lex.h. */
108 #define JAVA_START_CHAR_P(c) (c < 128 && (ISIDST (c) || c == '$'))
109 #define JAVA_PART_CHAR_P(c) (c < 128 \
112 || (c >= 0x00 && c <= 0x08) \
113 || (c >= 0x0e && c <= 0x1b) \
116 /* Verify that NAME is a valid Java class name that might contain
117 `main'. Return 0 on failure. */
119 verify_class_name (name
)
122 /* FIXME: what encoding do we use for command-line arguments? For
123 now we assume plain ASCII, which of course is wrong. */
127 if (ch
< 0 || ! JAVA_START_CHAR_P (ch
))
134 /* We found a break between class names. Next character
135 must be an identifier start again. */
138 if (! JAVA_PART_CHAR_P (ch
))
147 lang_specific_driver (in_argc
, in_argv
, in_added_libraries
)
149 const char *const **in_argv
;
150 int *in_added_libraries
;
154 /* If nonzero, the user gave us the `-v' flag. */
155 int saw_verbose_flag
= 0;
157 int saw_save_temps
= 0;
159 /* This will be 0 if we encounter a situation where we should not
163 /* This will be 1 if multiple input files (.class and/or .java)
164 should be passed to a single jc1 invocation. */
165 int combine_inputs
= 0;
167 /* Number of .java and .class source file arguments seen. */
168 int java_files_count
= 0;
169 int class_files_count
= 0;
170 /* Number of .zip or .jar file arguments seen. */
171 int zip_files_count
= 0;
172 /* Number of '@FILES' arguments seen. */
173 int indirect_files_count
= 0;
175 /* Name of file containing list of files to compile. */
176 char *filelist_filename
= 0;
178 FILE *filelist_file
= 0;
180 /* The number of arguments being added to what's in argv, other than
184 /* Used to track options that take arguments, so we don't go wrapping
185 those with -xc++/-xnone. */
186 const char *quote
= NULL
;
188 /* The new argument list will be contained in this. */
189 const char **arglist
;
191 /* Nonzero if we saw a `-xfoo' language specification on the
192 command line. Used to avoid adding our own -xc++ if the user
193 already gave a language for the file. */
194 int saw_speclang
= 0;
197 /* "-lm" or "-lmath" if it appears on the command line. */
198 const char *saw_math ATTRIBUTE_UNUSED
= 0;
200 /* "-lc" if it appears on the command line. */
201 const char *saw_libc ATTRIBUTE_UNUSED
= 0;
203 /* "-lgcjgc" if it appears on the command line. */
204 const char *saw_gc ATTRIBUTE_UNUSED
= 0;
206 /* Saw `-l' option for the thread library. */
207 const char *saw_threadlib ATTRIBUTE_UNUSED
= 0;
209 /* Saw `-lgcj' on command line. */
210 int saw_libgcj ATTRIBUTE_UNUSED
= 0;
213 /* Saw --resource, -C or -o options, respectively. */
214 int saw_resource
= 0;
218 /* Saw some -O* or -g* option, respectively. */
222 /* Saw a `-D' option. */
225 /* An array used to flag each argument that needs a bit set for
226 LANGSPEC, MATHLIB, WITHLIBC, or GCLIB. */
229 /* The total number of arguments with the new stuff. */
232 /* The argument list. */
233 const char *const *argv
;
235 /* The number of libraries added in. */
238 /* The total number of arguments with the new stuff. */
241 /* Nonzero if linking is supposed to happen. */
244 /* Nonzero if we want to find the spec file. */
245 int want_spec_file
= 1;
247 /* The argument we use to specify the spec file. */
248 char *spec_file
= NULL
;
252 added_libraries
= *in_added_libraries
;
254 args
= xcalloc (argc
, sizeof (int));
256 for (i
= 1; i
< argc
; i
++)
258 /* If the previous option took an argument, we swallow it here. */
262 args
[i
] |= PARAM_ARG
;
266 /* We don't do this anymore, since we don't get them with minus
268 if (argv
[i
][0] == '\0' || argv
[i
][1] == '\0')
271 if (argv
[i
][0] == '-')
273 if (library
!= 0 && (strcmp (argv
[i
], "-nostdlib") == 0
274 || strcmp (argv
[i
], "-nodefaultlibs") == 0))
278 else if (strncmp (argv
[i
], "-fmain=", 7) == 0)
280 main_class_name
= argv
[i
] + 7;
283 else if (strcmp (argv
[i
], "-fhelp") == 0)
285 else if (strcmp (argv
[i
], "-v") == 0)
287 saw_verbose_flag
= 1;
290 /* If they only gave us `-v', don't try to link
295 else if (strncmp (argv
[i
], "-x", 2) == 0)
297 else if (strcmp (argv
[i
], "-C") == 0)
306 else if (strncmp (argv
[i
], "-fcompile-resource=", 19) == 0)
315 else if (argv
[i
][1] == 'D')
317 else if (argv
[i
][1] == 'g')
319 else if (argv
[i
][1] == 'O')
321 else if ((argv
[i
][2] == '\0'
322 && (char *)strchr ("bBVDUoeTuIYmLiA", argv
[i
][1]) != NULL
)
323 || strcmp (argv
[i
], "-Tdata") == 0
324 || strcmp (argv
[i
], "-MT") == 0
325 || strcmp (argv
[i
], "-MF") == 0)
327 if (strcmp (argv
[i
], "-o") == 0)
331 else if (strcmp(argv
[i
], "-classpath") == 0
332 || strcmp(argv
[i
], "-bootclasspath") == 0
333 || strcmp(argv
[i
], "-CLASSPATH") == 0)
338 else if (library
!= 0
339 && ((argv
[i
][2] == '\0'
340 && (char *) strchr ("cSEM", argv
[i
][1]) != NULL
)
341 || strcmp (argv
[i
], "-MM") == 0))
343 /* Don't specify libraries if we won't link, since that would
348 /* Remember this so we can confirm -fmain option. */
351 else if (strcmp (argv
[i
], "-d") == 0)
353 /* `-d' option is for javac compatibility. */
357 else if (strcmp (argv
[i
], "-fsyntax-only") == 0
358 || strcmp (argv
[i
], "--syntax-only") == 0)
365 else if (strcmp (argv
[i
], "-save-temps") == 0)
367 else if (strcmp (argv
[i
], "-static-libgcc") == 0
368 || strcmp (argv
[i
], "-static") == 0)
371 /* Pass other options through. */
386 args
[i
] |= RESOURCE_FILE_ARG
;
387 added
+= 2; /* for -xjava and -xnone */
390 if (argv
[i
][0] == '@')
392 args
[i
] |= INDIRECT_FILE_ARG
;
393 indirect_files_count
++;
394 added
+= 2; /* for -xjava and -xnone */
397 len
= strlen (argv
[i
]);
398 if (len
> 5 && strcmp (argv
[i
] + len
- 5, ".java") == 0)
400 args
[i
] |= JAVA_FILE_ARG
;
403 if (len
> 6 && strcmp (argv
[i
] + len
- 6, ".class") == 0)
405 args
[i
] |= CLASS_FILE_ARG
;
409 && (strcmp (argv
[i
] + len
- 4, ".zip") == 0
410 || strcmp (argv
[i
] + len
- 4, ".jar") == 0))
412 args
[i
] |= ZIP_FILE_ARG
;
419 fatal ("argument to `%s' missing\n", quote
);
421 if (saw_D
&& ! main_class_name
)
422 fatal ("can't specify `-D' without `--main'\n");
424 if (main_class_name
&& ! verify_class_name (main_class_name
))
425 fatal ("`%s' is not a valid class name", main_class_name
);
427 num_args
= argc
+ added
;
431 fatal ("--resource requires -o");
436 if (class_files_count
+ zip_files_count
> 0)
438 error ("warning: already-compiled .class files ignored with -C");
439 num_args
-= class_files_count
+ zip_files_count
;
440 class_files_count
= 0;
443 num_args
+= 2; /* For -o NONE. */
445 fatal ("cannot specify both -C and -o");
447 if ((saw_o
&& java_files_count
+ class_files_count
+ zip_files_count
> 1)
448 || (saw_C
&& java_files_count
> 1)
449 || (indirect_files_count
> 0
450 && java_files_count
+ class_files_count
+ zip_files_count
> 0))
455 filelist_filename
= make_temp_file ("jx");
456 if (filelist_filename
== NULL
)
457 fatal ("cannot create temporary file");
458 record_temp_file (filelist_filename
, ! saw_save_temps
, 0);
459 filelist_file
= fopen (filelist_filename
, "w");
460 if (filelist_file
== NULL
)
461 pfatal_with_name (filelist_filename
);
462 num_args
-= java_files_count
+ class_files_count
+ zip_files_count
;
463 num_args
+= 2; /* for the combined arg and "-xjava" */
465 /* If we know we don't have to do anything, bail now. */
467 if (! added
&& ! library
&& main_class_name
== NULL
&& ! saw_C
)
476 lang_specific_extra_outfiles
++;
478 if (saw_g
+ saw_O
== 0)
482 if (combine_inputs
|| indirect_files_count
> 0)
483 num_args
+= 1; /* for "-ffilelist-file" */
484 if (combine_inputs
&& indirect_files_count
> 0)
485 fatal("using both @FILE with multiple files not implemented");
487 /* There's no point adding -shared-libgcc if we don't have a shared
489 #ifndef ENABLE_SHARED_LIBGCC
493 num_args
+= shared_libgcc
;
495 arglist
= xmalloc ((num_args
+ 1) * sizeof (char *));
498 for (i
= 0; i
< argc
; i
++, j
++)
500 arglist
[j
] = argv
[i
];
502 if ((args
[i
] & PARAM_ARG
) || i
== 0)
505 if ((args
[i
] & RESOURCE_FILE_ARG
) != 0)
507 arglist
[j
++] = "-xjava";
508 arglist
[j
++] = argv
[i
];
509 arglist
[j
] = "-xnone";
512 if (strcmp (argv
[i
], "-classpath") == 0
513 || strcmp (argv
[i
], "-bootclasspath") == 0
514 || strcmp (argv
[i
], "-CLASSPATH") == 0)
516 arglist
[j
] = concat ("-f", argv
[i
]+1, "=", argv
[i
+1], NULL
);
521 if (strcmp (argv
[i
], "-d") == 0)
523 arglist
[j
] = concat ("-foutput-class-dir=", argv
[i
+ 1], NULL
);
528 if (spec_file
== NULL
&& strncmp (argv
[i
], "-L", 2) == 0)
529 spec_file
= find_spec_file (argv
[i
] + 2);
531 if (strncmp (argv
[i
], "-fmain=", 7) == 0)
534 fatal ("cannot specify `main' class when not linking");
539 if ((args
[i
] & INDIRECT_FILE_ARG
) != 0)
541 arglist
[j
++] = "-xjava";
542 arglist
[j
++] = argv
[i
]+1; /* Drop '@'. */
543 arglist
[j
] = "-xnone";
546 if ((args
[i
] & (CLASS_FILE_ARG
|ZIP_FILE_ARG
)) && saw_C
)
553 && (args
[i
] & (CLASS_FILE_ARG
|JAVA_FILE_ARG
|ZIP_FILE_ARG
)) != 0)
555 fputs (argv
[i
], filelist_file
);
556 fputc ('\n', filelist_file
);
562 if (combine_inputs
|| indirect_files_count
> 0)
563 arglist
[j
++] = "-ffilelist-file";
567 if (fclose (filelist_file
))
568 pfatal_with_name (filelist_filename
);
569 arglist
[j
++] = "-xjava";
570 arglist
[j
++] = filelist_filename
;
573 /* If we saw no -O or -g option, default to -g1, for javac compatibility. */
574 if (saw_g
+ saw_O
== 0)
575 arglist
[j
++] = "-g1";
577 /* Read the specs file corresponding to libgcj.
578 If we didn't find the spec file on the -L path, then we hope it
579 is somewhere in the standard install areas. */
581 arglist
[j
++] = spec_file
== NULL
? "-specs=libgcj.spec" : spec_file
;
585 arglist
[j
++] = "-fsyntax-only";
586 arglist
[j
++] = "-femit-class-files";
589 arglist
[j
++] = "NONE";
593 arglist
[j
++] = "-shared-libgcc";
599 *in_added_libraries
= added_libraries
;
603 lang_specific_pre_link ()
606 if (main_class_name
== NULL
)
608 /* Append `main' to make the filename unique and allow
610 gcj --main=hello -save-temps hello.java
612 to work. jvgenmain needs to strip this `main' to arrive at the correct
613 class name. Append dummy `.c' that can be stripped by set_input so %b
615 set_input (concat (main_class_name
, "main.c", NULL
));
616 err
= do_spec (jvgenmain_spec
);
619 /* Shift the outfiles array so the generated main comes first.
620 This is important when linking against (non-shared) libraries,
621 since otherwise we risk (a) nothing getting linked or
622 (b) 'main' getting picked up from a library. */
624 const char *generated
= outfiles
[i
];
626 outfiles
[i
+ 1] = outfiles
[i
];
627 outfiles
[0] = generated
;
632 /* Table of language-specific spec functions. */
633 const struct spec_function lang_specific_spec_functions
[] =