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 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. */
30 #include "gansidecl.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)
44 extern int do_spec
PROTO((char *));
45 extern char *input_filename
;
46 extern size_t input_filename_length
;
48 char *main_class_name
= NULL
;
49 int lang_specific_extra_outfiles
= 0;
51 /* Once we have the proper support in jc1 (and gcc.c) working,
52 set COMBINE_INPUTS to one. This enables combining multiple *.java
53 and *.class input files to be passed to a single jc1 invocation. */
54 #define COMBINE_INPUTS 0
56 char jvgenmain_spec
[] =
57 "jvgenmain %i %{!pipe:%u.i} |\n\
58 cc1 %{!pipe:%U.i} %1 \
59 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a*}\
61 %{v:-version} %{pg:-p} %{p} %{f*}\
63 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
64 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%U.s}} |\n\
65 %{!S:as %a %Y -o %d%w%u%O %{!pipe:%U.s} %A\n }";
67 /* Return full path name of spec file if it is in DIR, or NULL if
77 spec
= (char *) xmalloc (strlen (dir
) + sizeof (SPEC_FILE
)
78 + sizeof ("-specs=") + 4);
79 strcpy (spec
, "-specs=");
83 strcat (spec
, SPEC_FILE
);
84 if (! stat (spec
+ x
, &sb
))
91 lang_specific_driver (fn
, in_argc
, in_argv
, in_added_libraries
)
95 int *in_added_libraries
;
99 /* If non-zero, the user gave us the `-v' flag. */
100 int saw_verbose_flag
= 0;
102 /* This will be 0 if we encounter a situation where we should not
107 /* This will be 1 if multiple input files (.class and/or .java)
108 should be passed to a single jc1 invocation. */
109 int combine_inputs
= 0;
111 /* Index of last .java or .class argument. */
112 int last_input_index
;
114 /* A buffer containing the concatenation of the inputs files
115 (e.g. "foo.java&bar.class&baz.class"). if combine_inputs. */
116 char* combined_inputs_buffer
;
118 /* Next available location in combined_inputs_buffer. */
119 int combined_inputs_pos
;
121 /* Number of .java and .class source file arguments seen. */
122 int java_files_count
= 0;
123 int class_files_count
= 0;
125 /* Cumulative length of the .java and .class source file names. */
126 int java_files_length
= 0;
127 int class_files_length
= 0;
130 /* The number of arguments being added to what's in argv, other than
131 libraries. We use this to track the number of times we've inserted
135 /* Used to track options that take arguments, so we don't go wrapping
136 those with -xc++/-xnone. */
139 /* The new argument list will be contained in this. */
142 /* Non-zero if we saw a `-xfoo' language specification on the
143 command line. Used to avoid adding our own -xc++ if the user
144 already gave a language for the file. */
145 int saw_speclang
= 0;
147 /* "-lm" or "-lmath" if it appears on the command line. */
148 char *saw_math ATTRIBUTE_UNUSED
= 0;
150 /* "-lc" if it appears on the command line. */
151 char *saw_libc ATTRIBUTE_UNUSED
= 0;
153 /* "-lgcjgc" if it appears on the command line. */
154 char *saw_gc ATTRIBUTE_UNUSED
= 0;
156 /* Saw `-l' option for the thread library. */
157 char *saw_threadlib ATTRIBUTE_UNUSED
= 0;
159 /* Saw `-lgcj' on command line. */
160 int saw_libgcj ATTRIBUTE_UNUSED
= 0;
162 /* Saw -C or -o option, respectively. */
166 /* Saw some -O* or -g* option, respectively. */
170 /* An array used to flag each argument that needs a bit set for
171 LANGSPEC, MATHLIB, WITHLIBC, or GCLIB. */
174 /* The total number of arguments with the new stuff. */
177 /* The argument list. */
180 /* The number of libraries added in. */
183 /* The total number of arguments with the new stuff. */
186 /* Non-zero if linking is supposed to happen. */
189 /* The argument we use to specify the spec file. */
190 char *spec_file
= NULL
;
194 added_libraries
= *in_added_libraries
;
196 args
= (int *) xmalloc (argc
* sizeof (int));
197 bzero ((char *) args
, argc
* sizeof (int));
199 for (i
= 1; i
< argc
; i
++)
201 /* If the previous option took an argument, we swallow it here. */
205 args
[i
] |= PARAM_ARG
;
209 /* We don't do this anymore, since we don't get them with minus
211 if (argv
[i
][0] == '\0' || argv
[i
][1] == '\0')
214 if (argv
[i
][0] == '-')
216 if (library
!= 0 && (strcmp (argv
[i
], "-nostdlib") == 0
217 || strcmp (argv
[i
], "-nodefaultlibs") == 0))
221 else if (strncmp (argv
[i
], "-fmain=", 7) == 0)
223 main_class_name
= argv
[i
] + 7;
226 else if (strcmp (argv
[i
], "-fhelp") == 0)
228 else if (strcmp (argv
[i
], "-v") == 0)
230 saw_verbose_flag
= 1;
233 /* If they only gave us `-v', don't try to link
238 else if (strncmp (argv
[i
], "-x", 2) == 0)
240 else if (strcmp (argv
[i
], "-C") == 0)
251 else if (argv
[i
][1] == 'g')
253 else if (argv
[i
][1] == 'O')
255 else if (((argv
[i
][2] == '\0'
256 && (char *)strchr ("bBVDUoeTuIYmLiA", argv
[i
][1]) != NULL
)
257 || strcmp (argv
[i
], "-Tdata") == 0))
259 if (strcmp (argv
[i
], "-o") == 0)
263 else if (strcmp(argv
[i
], "-classpath") == 0
264 || strcmp(argv
[i
], "-CLASSPATH") == 0)
269 else if (library
!= 0
270 && ((argv
[i
][2] == '\0'
271 && (char *) strchr ("cSEM", argv
[i
][1]) != NULL
)
272 || strcmp (argv
[i
], "-MM") == 0))
274 /* Don't specify libraries if we won't link, since that would
279 /* Remember this so we can confirm -fmain option. */
282 else if (strcmp (argv
[i
], "-d") == 0)
284 /* `-d' option is for javac compatibility. */
288 else if (strcmp (argv
[i
], "-fsyntax-only") == 0
289 || strcmp (argv
[i
], "--syntax-only") == 0)
296 /* Pass other options through. */
312 len
= strlen (argv
[i
]);
313 if (len
> 5 && strcmp (argv
[i
] + len
- 5, ".java") == 0)
315 args
[i
] |= JAVA_FILE_ARG
;
317 java_files_length
+= len
;
318 last_input_index
= i
;
320 if (len
> 6 && strcmp (argv
[i
] + len
- 6, ".class") == 0)
322 args
[i
] |= CLASS_FILE_ARG
;
324 class_files_length
+= len
;
325 last_input_index
= i
;
332 (*fn
) ("argument to `%s' missing\n", quote
);
334 num_args
= argc
+ added
;
339 class_files_length
= 0;
340 num_args
-= class_files_count
;
341 num_args
+= 2; /* For -o NONE. */
344 (*fn
) ("cannot specify both -C and -o");
347 if (saw_o
&& java_files_count
+ (saw_C
? 0 : class_files_count
) > 1)
352 int len
= java_files_length
+ java_files_count
- 1;
353 num_args
-= java_files_count
;
354 num_args
++; /* Add one for the combined arg. */
355 if (class_files_length
> 0)
357 len
+= class_files_length
+ class_files_count
- 1;
358 num_args
-= class_files_count
;
360 combined_inputs_buffer
= (char*) xmalloc (len
);
361 combined_inputs_pos
= 0;
363 /* If we know we don't have to do anything, bail now. */
366 if (! added
&& ! library
&& main_class_name
== NULL
&& ! saw_C
)
375 lang_specific_extra_outfiles
++;
377 if (saw_g
+ saw_O
== 0)
381 arglist
= (char **) xmalloc ((num_args
+ 1) * sizeof (char *));
383 for (i
= 0, j
= 0; i
< argc
; i
++, j
++)
385 arglist
[j
] = argv
[i
];
387 if ((args
[i
] & PARAM_ARG
) || i
== 0)
390 if (strcmp (argv
[i
], "-classpath") == 0
391 || strcmp (argv
[i
], "-CLASSPATH") == 0)
394 = (char*) xmalloc (strlen (argv
[i
]) + strlen (argv
[i
+1]) + 3);
395 sprintf (patharg
, "-f%s=%s", argv
[i
]+1, argv
[i
+1]);
396 arglist
[j
] = patharg
;
401 if (strcmp (argv
[i
], "-d") == 0)
403 char *patharg
= (char *) xmalloc (sizeof ("-foutput-class-dir=")
404 + strlen (argv
[i
+ 1]) + 1);
405 sprintf (patharg
, "-foutput-class-dir=%s", argv
[i
+ 1]);
406 arglist
[j
] = patharg
;
411 if (will_link
&& spec_file
== NULL
&& strncmp (argv
[i
], "-L", 2) == 0)
412 spec_file
= find_spec_file (argv
[i
] + 2);
414 if (strncmp (argv
[i
], "-fmain=", 7) == 0)
417 (*fn
) ("cannot specify `main' class when not linking");
422 if ((args
[i
] & CLASS_FILE_ARG
) && saw_C
)
429 if (combine_inputs
&& (args
[i
] & (CLASS_FILE_ARG
|JAVA_FILE_ARG
)) != 0)
431 if (combined_inputs_pos
> 0)
432 combined_inputs_buffer
[combined_inputs_pos
++] = '&';
433 strcpy (&combined_inputs_buffer
[combined_inputs_pos
], argv
[i
]);
434 combined_inputs_pos
+= strlen (argv
[i
]);
444 combined_inputs_buffer
[combined_inputs_pos
] = '\0';
448 arglist
[j
++] = combined_inputs_buffer
;
452 /* If we saw no -O or -g option, default to -g1, for javac compatibility. */
453 if (saw_g
+ saw_O
== 0)
454 arglist
[j
++] = "-g1";
456 /* Read the specs file corresponding to libgcj, but only if linking.
457 If we didn't find the spec file on the -L path, then we hope it
458 is somewhere in the standard install areas. */
460 arglist
[j
++] = spec_file
== NULL
? "-specs=libgcj.spec" : spec_file
;
464 arglist
[j
++] = "-fsyntax-only";
465 arglist
[j
++] = "-femit-class-files";
469 arglist
[j
++] = "NONE";
477 *in_added_libraries
= added_libraries
;
481 lang_specific_pre_link ()
483 if (main_class_name
== NULL
)
485 input_filename
= main_class_name
;
486 input_filename_length
= strlen (main_class_name
);
487 return do_spec (jvgenmain_spec
);