1 /* dlltool.c -- tool to generate stuff for PE style DLLs
2 Copyright 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
3 2005, 2006, 2007 Free Software Foundation, Inc.
4
5 This file is part of GNU Binutils.
6
7 This program 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 of the License, or
10 (at your option) any later version.
11
12 This program 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.
16
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
20 02110-1301, USA. */
21
22
23 /* This program allows you to build the files necessary to create
24 DLLs to run on a system which understands PE format image files.
25 (eg, Windows NT)
26
27 See "Peering Inside the PE: A Tour of the Win32 Portable Executable
28 File Format", MSJ 1994, Volume 9 for more information.
29 Also see "Microsoft Portable Executable and Common Object File Format,
30 Specification 4.1" for more information.
31
32 A DLL contains an export table which contains the information
33 which the runtime loader needs to tie up references from a
34 referencing program.
35
36 The export table is generated by this program by reading
37 in a .DEF file or scanning the .a and .o files which will be in the
38 DLL. A .o file can contain information in special ".drectve" sections
39 with export information.
40
41 A DEF file contains any number of the following commands:
42
43
44 NAME <name> [ , <base> ]
45 The result is going to be <name>.EXE
46
47 LIBRARY <name> [ , <base> ]
48 The result is going to be <name>.DLL
49
50 EXPORTS ( ( ( <name1> [ = <name2> ] )
51 | ( <name1> = <module-name> . <external-name>))
52 [ @ <integer> ] [ NONAME ] [CONSTANT] [DATA] [PRIVATE] ) *
53 Declares name1 as an exported symbol from the
54 DLL, with optional ordinal number <integer>.
55 Or declares name1 as an alias (forward) of the function <external-name>
56 in the DLL <module-name>.
57
58 IMPORTS ( ( <internal-name> = <module-name> . <integer> )
59 | ( [ <internal-name> = ] <module-name> . <external-name> )) *
60 Declares that <external-name> or the exported function whose ordinal number
61 is <integer> is to be imported from the file <module-name>. If
62 <internal-name> is specified then this is the name that the imported
63 function will be refereed to in the body of the DLL.
64
65 DESCRIPTION <string>
66 Puts <string> into output .exp file in the .rdata section
67
68 [STACKSIZE|HEAPSIZE] <number-reserve> [ , <number-commit> ]
69 Generates --stack|--heap <number-reserve>,<number-commit>
70 in the output .drectve section. The linker will
71 see this and act upon it.
72
73 [CODE|DATA] <attr>+
74 SECTIONS ( <sectionname> <attr>+ )*
75 <attr> = READ | WRITE | EXECUTE | SHARED
76 Generates --attr <sectionname> <attr> in the output
77 .drectve section. The linker will see this and act
78 upon it.
79
80
81 A -export:<name> in a .drectve section in an input .o or .a
82 file to this program is equivalent to a EXPORTS <name>
83 in a .DEF file.
84
85
86
87 The program generates output files with the prefix supplied
88 on the command line, or in the def file, or taken from the first
89 supplied argument.
90
91 The .exp.s file contains the information necessary to export
92 the routines in the DLL. The .lib.s file contains the information
93 necessary to use the DLL's routines from a referencing program.
94
95
96
97 Example:
98
99 file1.c:
100 asm (".section .drectve");
101 asm (".ascii \"-export:adef\"");
102
103 void adef (char * s)
104 {
105 printf ("hello from the dll %s\n", s);
106 }
107
108 void bdef (char * s)
109 {
110 printf ("hello from the dll and the other entry point %s\n", s);
111 }
112
113 file2.c:
114 asm (".section .drectve");
115 asm (".ascii \"-export:cdef\"");
116 asm (".ascii \"-export:ddef\"");
117
118 void cdef (char * s)
119 {
120 printf ("hello from the dll %s\n", s);
121 }
122
123 void ddef (char * s)
124 {
125 printf ("hello from the dll and the other entry point %s\n", s);
126 }
127
128 int printf (void)
129 {
130 return 9;
131 }
132
133 themain.c:
134 int main (void)
135 {
136 cdef ();
137 return 0;
138 }
139
140 thedll.def
141
142 LIBRARY thedll
143 HEAPSIZE 0x40000, 0x2000
144 EXPORTS bdef @ 20
145 cdef @ 30 NONAME
146
147 SECTIONS donkey READ WRITE
148 aardvark EXECUTE
149
150 # Compile up the parts of the dll and the program
151
152 gcc -c file1.c file2.c themain.c
153
154 # Optional: put the dll objects into a library
155 # (you don't have to, you could name all the object
156 # files on the dlltool line)
157
158 ar qcv thedll.in file1.o file2.o
159 ranlib thedll.in
160
161 # Run this tool over the DLL's .def file and generate an exports
162 # file (thedll.o) and an imports file (thedll.a).
163 # (You may have to use -S to tell dlltool where to find the assembler).
164
165 dlltool --def thedll.def --output-exp thedll.o --output-lib thedll.a
166
167 # Build the dll with the library and the export table
168
169 ld -o thedll.dll thedll.o thedll.in
170
171 # Link the executable with the import library
172
173 gcc -o themain.exe themain.o thedll.a
174
175 This example can be extended if relocations are needed in the DLL:
176
177 # Compile up the parts of the dll and the program
178
179 gcc -c file1.c file2.c themain.c
180
181 # Run this tool over the DLL's .def file and generate an imports file.
182
183 dlltool --def thedll.def --output-lib thedll.lib
184
185 # Link the executable with the import library and generate a base file
186 # at the same time
187
188 gcc -o themain.exe themain.o thedll.lib -Wl,--base-file -Wl,themain.base
189
190 # Run this tool over the DLL's .def file and generate an exports file
191 # which includes the relocations from the base file.
192
193 dlltool --def thedll.def --base-file themain.base --output-exp thedll.exp
194
195 # Build the dll with file1.o, file2.o and the export table
196
197 ld -o thedll.dll thedll.exp file1.o file2.o */
198
199 /* .idata section description
200
201 The .idata section is the import table. It is a collection of several
202 subsections used to keep the pieces for each dll together: .idata$[234567].
203 IE: Each dll's .idata$2's are catenated together, each .idata$3's, etc.
204
205 .idata$2 = Import Directory Table
206 = array of IMAGE_IMPORT_DESCRIPTOR's.
207
208 DWORD Import Lookup Table; - pointer to .idata$4
209 DWORD TimeDateStamp; - currently always 0
210 DWORD ForwarderChain; - currently always 0
211 DWORD Name; - pointer to dll's name
212 PIMAGE_THUNK_DATA FirstThunk; - pointer to .idata$5
213
214 .idata$3 = null terminating entry for .idata$2.
215
216 .idata$4 = Import Lookup Table
217 = array of array of pointers to hint name table.
218 There is one for each dll being imported from, and each dll's set is
219 terminated by a trailing NULL.
220
221 .idata$5 = Import Address Table
222 = array of array of pointers to hint name table.
223 There is one for each dll being imported from, and each dll's set is
224 terminated by a trailing NULL.
225 Initially, this table is identical to the Import Lookup Table. However,
226 at load time, the loader overwrites the entries with the address of the
227 function.
228
229 .idata$6 = Hint Name Table
230 = Array of { short, asciz } entries, one for each imported function.
231 The `short' is the function's ordinal number.
232
233 .idata$7 = dll name (eg: "kernel32.dll"). (.idata$6 for ppc). */
234
235 /* AIX requires this to be the first thing in the file. */
236 #ifndef __GNUC__
237 # ifdef _AIX
238 #pragma alloca
239 #endif
240 #endif
241
242 #define show_allnames 0
243
244 #define PAGE_SIZE 4096
245 #define PAGE_MASK (-PAGE_SIZE)
246 #include "sysdep.h"
247 #include "bfd.h"
248 #include "libiberty.h"
249 #include "getopt.h"
250 #include "demangle.h"
251 #include "dyn-string.h"
252 #include "bucomm.h"
253 #include "dlltool.h"
254 #include "safe-ctype.h"
255
256 #include <time.h>
257 #include <sys/stat.h>
258 #include <stdarg.h>
259 #include <assert.h>
260
261 #ifdef DLLTOOL_ARM
262 #include "coff/arm.h"
263 #include "coff/internal.h"
264 #endif
265 #ifdef DLLTOOL_MX86_64
266 #include "coff/x86_64.h"
267 #endif
268
269 /* Forward references. */
270 static char *look_for_prog (const char *, const char *, int);
271 static char *deduce_name (const char *);
272
273 #ifdef DLLTOOL_MCORE_ELF
274 static void mcore_elf_cache_filename (char *);
275 static void mcore_elf_gen_out_file (void);
276 #endif
277
278 #ifdef HAVE_SYS_WAIT_H
279 #include <sys/wait.h>
280 #else /* ! HAVE_SYS_WAIT_H */
281 #if ! defined (_WIN32) || defined (__CYGWIN32__)
282 #ifndef WIFEXITED
283 #define WIFEXITED(w) (((w) & 0377) == 0)
284 #endif
285 #ifndef WIFSIGNALED
286 #define WIFSIGNALED(w) (((w) & 0377) != 0177 && ((w) & ~0377) == 0)
287 #endif
288 #ifndef WTERMSIG
289 #define WTERMSIG(w) ((w) & 0177)
290 #endif
291 #ifndef WEXITSTATUS
292 #define WEXITSTATUS(w) (((w) >> 8) & 0377)
293 #endif
294 #else /* defined (_WIN32) && ! defined (__CYGWIN32__) */
295 #ifndef WIFEXITED
296 #define WIFEXITED(w) (((w) & 0xff) == 0)
297 #endif
298 #ifndef WIFSIGNALED
299 #define WIFSIGNALED(w) (((w) & 0xff) != 0 && ((w) & 0xff) != 0x7f)
300 #endif
301 #ifndef WTERMSIG
302 #define WTERMSIG(w) ((w) & 0x7f)
303 #endif
304 #ifndef WEXITSTATUS
305 #define WEXITSTATUS(w) (((w) & 0xff00) >> 8)
306 #endif
307 #endif /* defined (_WIN32) && ! defined (__CYGWIN32__) */
308 #endif /* ! HAVE_SYS_WAIT_H */
309
310 /* ifunc and ihead data structures: ttk@cygnus.com 1997
311
312 When IMPORT declarations are encountered in a .def file the
313 function import information is stored in a structure referenced by
314 the global variable IMPORT_LIST. The structure is a linked list
315 containing the names of the dll files each function is imported
316 from and a linked list of functions being imported from that dll
317 file. This roughly parallels the structure of the .idata section
318 in the PE object file.
319
320 The contents of .def file are interpreted from within the
321 process_def_file function. Every time an IMPORT declaration is
322 encountered, it is broken up into its component parts and passed to
323 def_import. IMPORT_LIST is initialized to NULL in function main. */
324
325 typedef struct ifunct
326 {
327 char * name; /* Name of function being imported. */
328 int ord; /* Two-byte ordinal value associated with function. */
329 struct ifunct *next;
330 } ifunctype;
331
332 typedef struct iheadt
333 {
334 char *dllname; /* Name of dll file imported from. */
335 long nfuncs; /* Number of functions in list. */
336 struct ifunct *funchead; /* First function in list. */
337 struct ifunct *functail; /* Last function in list. */
338 struct iheadt *next; /* Next dll file in list. */
339 } iheadtype;
340
341 /* Structure containing all import information as defined in .def file
342 (qv "ihead structure"). */
343
344 static iheadtype *import_list = NULL;
345
346 static char *as_name = NULL;
347 static char * as_flags = "";
348
349 static char *tmp_prefix;
350
351 static int no_idata4;
352 static int no_idata5;
353 static char *exp_name;
354 static char *imp_name;
355 static char *head_label;
356 static char *imp_name_lab;
357 static char *dll_name;
358
359 static int add_indirect = 0;
360 static int add_underscore = 0;
361 static int add_stdcall_underscore = 0;
362 static int dontdeltemps = 0;
363
364 /* TRUE if we should export all symbols. Otherwise, we only export
365 symbols listed in .drectve sections or in the def file. */
366 static bfd_boolean export_all_symbols;
367
368 /* TRUE if we should exclude the symbols in DEFAULT_EXCLUDES when
369 exporting all symbols. */
370 static bfd_boolean do_default_excludes = TRUE;
371
372 /* Default symbols to exclude when exporting all the symbols. */
373 static const char *default_excludes = "DllMain@12,DllEntryPoint@0,impure_ptr";
374
375 /* TRUE if we should add __imp_<SYMBOL> to import libraries for backward
376 compatibility to old Cygwin releases. */
377 static bfd_boolean create_compat_implib;
378
379 static char *def_file;
380
381 extern char * program_name;
382
383 static int machine;
384 static int killat;
385 static int add_stdcall_alias;
386 static const char *ext_prefix_alias;
387 static int verbose;
388 static FILE *output_def;
389 static FILE *base_file;
390
391 #ifdef DLLTOOL_DEFAULT_ARM
392 static const char *mname = "arm";
393 #endif
394
395 #ifdef DLLTOOL_DEFAULT_ARM_EPOC
396 static const char *mname = "arm-epoc";
397 #endif
398
399 #ifdef DLLTOOL_DEFAULT_ARM_WINCE
400 static const char *mname = "arm-wince";
401 #endif
402
403 #ifdef DLLTOOL_DEFAULT_I386
404 static const char *mname = "i386";
405 #endif
406
407 #ifdef DLLTOOL_DEFAULT_MX86_64
408 static const char *mname = "i386:x86-64";
409 #endif
410
411 #ifdef DLLTOOL_DEFAULT_PPC
412 static const char *mname = "ppc";
413 #endif
414
415 #ifdef DLLTOOL_DEFAULT_SH
416 static const char *mname = "sh";
417 #endif
418
419 #ifdef DLLTOOL_DEFAULT_MIPS
420 static const char *mname = "mips";
421 #endif
422
423 #ifdef DLLTOOL_DEFAULT_MCORE
424 static const char * mname = "mcore-le";
425 #endif
426
427 #ifdef DLLTOOL_DEFAULT_MCORE_ELF
428 static const char * mname = "mcore-elf";
429 static char * mcore_elf_out_file = NULL;
430 static char * mcore_elf_linker = NULL;
431 static char * mcore_elf_linker_flags = NULL;
432
433 #define DRECTVE_SECTION_NAME ((machine == MMCORE_ELF || machine == MMCORE_ELF_LE) ? ".exports" : ".drectve")
434 #endif
435
436 #ifndef DRECTVE_SECTION_NAME
437 #define DRECTVE_SECTION_NAME ".drectve"
438 #endif
439
440 /* What's the right name for this ? */
441 #define PATHMAX 250
442
443 /* External name alias numbering starts here. */
444 #define PREFIX_ALIAS_BASE 20000
445
446 char *tmp_asm_buf;
447 char *tmp_head_s_buf;
448 char *tmp_head_o_buf;
449 char *tmp_tail_s_buf;
450 char *tmp_tail_o_buf;
451 char *tmp_stub_buf;
452
453 #define TMP_ASM dlltmp (&tmp_asm_buf, "%sc.s")
454 #define TMP_HEAD_S dlltmp (&tmp_head_s_buf, "%sh.s")
455 #define TMP_HEAD_O dlltmp (&tmp_head_o_buf, "%sh.o")
456 #define TMP_TAIL_S dlltmp (&tmp_tail_s_buf, "%st.s")
457 #define TMP_TAIL_O dlltmp (&tmp_tail_o_buf, "%st.o")
458 #define TMP_STUB dlltmp (&tmp_stub_buf, "%ss")
459
460 /* This bit of assembly does jmp * .... */
461 static const unsigned char i386_jtab[] =
462 {
463 0xff, 0x25, 0x00, 0x00, 0x00, 0x00, 0x90, 0x90
464 };
465
466 static const unsigned char arm_jtab[] =
467 {
468 0x00, 0xc0, 0x9f, 0xe5, /* ldr ip, [pc] */
469 0x00, 0xf0, 0x9c, 0xe5, /* ldr pc, [ip] */
470 0, 0, 0, 0
471 };
472
473 static const unsigned char arm_interwork_jtab[] =
474 {
475 0x04, 0xc0, 0x9f, 0xe5, /* ldr ip, [pc] */
476 0x00, 0xc0, 0x9c, 0xe5, /* ldr ip, [ip] */
477 0x1c, 0xff, 0x2f, 0xe1, /* bx ip */
478 0, 0, 0, 0
479 };
480
481 static const unsigned char thumb_jtab[] =
482 {
483 0x40, 0xb4, /* push {r6} */
484 0x02, 0x4e, /* ldr r6, [pc, #8] */
485 0x36, 0x68, /* ldr r6, [r6] */
486 0xb4, 0x46, /* mov ip, r6 */
487 0x40, 0xbc, /* pop {r6} */
488 0x60, 0x47, /* bx ip */
489 0, 0, 0, 0
490 };
491
492 static const unsigned char mcore_be_jtab[] =
493 {
494 0x71, 0x02, /* lrw r1,2 */
495 0x81, 0x01, /* ld.w r1,(r1,0) */
496 0x00, 0xC1, /* jmp r1 */
497 0x12, 0x00, /* nop */
498 0x00, 0x00, 0x00, 0x00 /* <address> */
499 };
500
501 static const unsigned char mcore_le_jtab[] =
502 {
503 0x02, 0x71, /* lrw r1,2 */
504 0x01, 0x81, /* ld.w r1,(r1,0) */
505 0xC1, 0x00, /* jmp r1 */
506 0x00, 0x12, /* nop */
507 0x00, 0x00, 0x00, 0x00 /* <address> */
508 };
509
510 /* This is the glue sequence for PowerPC PE. There is a
511 tocrel16-tocdefn reloc against the first instruction.
512 We also need a IMGLUE reloc against the glue function
513 to restore the toc saved by the third instruction in
514 the glue. */
515 static const unsigned char ppc_jtab[] =
516 {
517 0x00, 0x00, 0x62, 0x81, /* lwz r11,0(r2) */
518 /* Reloc TOCREL16 __imp_xxx */
519 0x00, 0x00, 0x8B, 0x81, /* lwz r12,0(r11) */
520 0x04, 0x00, 0x41, 0x90, /* stw r2,4(r1) */
521 0xA6, 0x03, 0x89, 0x7D, /* mtctr r12 */
522 0x04, 0x00, 0x4B, 0x80, /* lwz r2,4(r11) */
523 0x20, 0x04, 0x80, 0x4E /* bctr */
524 };
525
526 #ifdef DLLTOOL_PPC
527 /* The glue instruction, picks up the toc from the stw in
528 the above code: "lwz r2,4(r1)". */
529 static bfd_vma ppc_glue_insn = 0x80410004;
530 #endif
531
532 struct mac
533 {
534 const char *type;
535 const char *how_byte;
536 const char *how_short;
537 const char *how_long;
538 const char *how_asciz;
539 const char *how_comment;
540 const char *how_jump;
541 const char *how_global;
542 const char *how_space;
543 const char *how_align_short;
544 const char *how_align_long;
545 const char *how_default_as_switches;
546 const char *how_bfd_target;
547 enum bfd_architecture how_bfd_arch;
548 const unsigned char *how_jtab;
549 int how_jtab_size; /* Size of the jtab entry. */
550 int how_jtab_roff; /* Offset into it for the ind 32 reloc into idata 5. */
551 };
552
553 static const struct mac
554 mtable[] =
555 {
556 {
557 #define MARM 0
558 "arm", ".byte", ".short", ".long", ".asciz", "@",
559 "ldr\tip,[pc]\n\tldr\tpc,[ip]\n\t.long",
560 ".global", ".space", ".align\t2",".align\t4", "-mapcs-32",
561 "pe-arm-little", bfd_arch_arm,
562 arm_jtab, sizeof (arm_jtab), 8
563 }
564 ,
565 {
566 #define M386 1
567 "i386", ".byte", ".short", ".long", ".asciz", "#",
568 "jmp *", ".global", ".space", ".align\t2",".align\t4", "",
569 "pe-i386",bfd_arch_i386,
570 i386_jtab, sizeof (i386_jtab), 2
571 }
572 ,
573 {
574 #define MPPC 2
575 "ppc", ".byte", ".short", ".long", ".asciz", "#",
576 "jmp *", ".global", ".space", ".align\t2",".align\t4", "",
577 "pe-powerpcle",bfd_arch_powerpc,
578 ppc_jtab, sizeof (ppc_jtab), 0
579 }
580 ,
581 {
582 #define MTHUMB 3
583 "thumb", ".byte", ".short", ".long", ".asciz", "@",
584 "push\t{r6}\n\tldr\tr6, [pc, #8]\n\tldr\tr6, [r6]\n\tmov\tip, r6\n\tpop\t{r6}\n\tbx\tip",
585 ".global", ".space", ".align\t2",".align\t4", "-mthumb-interwork",
586 "pe-arm-little", bfd_arch_arm,
587 thumb_jtab, sizeof (thumb_jtab), 12
588 }
589 ,
590 #define MARM_INTERWORK 4
591 {
592 "arm_interwork", ".byte", ".short", ".long", ".asciz", "@",
593 "ldr\tip,[pc]\n\tldr\tip,[ip]\n\tbx\tip\n\t.long",
594 ".global", ".space", ".align\t2",".align\t4", "-mthumb-interwork",
595 "pe-arm-little", bfd_arch_arm,
596 arm_interwork_jtab, sizeof (arm_interwork_jtab), 12
597 }
598 ,
599 {
600 #define MMCORE_BE 5
601 "mcore-be", ".byte", ".short", ".long", ".asciz", "//",
602 "lrw r1,[1f]\n\tld.w r1,(r1,0)\n\tjmp r1\n\tnop\n1:.long",
603 ".global", ".space", ".align\t2",".align\t4", "",
604 "pe-mcore-big", bfd_arch_mcore,
605 mcore_be_jtab, sizeof (mcore_be_jtab), 8
606 }
607 ,
608 {
609 #define MMCORE_LE 6
610 "mcore-le", ".byte", ".short", ".long", ".asciz", "//",
611 "lrw r1,[1f]\n\tld.w r1,(r1,0)\n\tjmp r1\n\tnop\n1:.long",
612 ".global", ".space", ".align\t2",".align\t4", "-EL",
613 "pe-mcore-little", bfd_arch_mcore,
614 mcore_le_jtab, sizeof (mcore_le_jtab), 8
615 }
616 ,
617 {
618 #define MMCORE_ELF 7
619 "mcore-elf-be", ".byte", ".short", ".long", ".asciz", "//",
620 "lrw r1,[1f]\n\tld.w r1,(r1,0)\n\tjmp r1\n\tnop\n1:.long",
621 ".global", ".space", ".align\t2",".align\t4", "",
622 "elf32-mcore-big", bfd_arch_mcore,
623 mcore_be_jtab, sizeof (mcore_be_jtab), 8
624 }
625 ,
626 {
627 #define MMCORE_ELF_LE 8
628 "mcore-elf-le", ".byte", ".short", ".long", ".asciz", "//",
629 "lrw r1,[1f]\n\tld.w r1,(r1,0)\n\tjmp r1\n\tnop\n1:.long",
630 ".global", ".space", ".align\t2",".align\t4", "-EL",
631 "elf32-mcore-little", bfd_arch_mcore,
632 mcore_le_jtab, sizeof (mcore_le_jtab), 8
633 }
634 ,
635 {
636 #define MARM_EPOC 9
637 "arm-epoc", ".byte", ".short", ".long", ".asciz", "@",
638 "ldr\tip,[pc]\n\tldr\tpc,[ip]\n\t.long",
639 ".global", ".space", ".align\t2",".align\t4", "",
640 "epoc-pe-arm-little", bfd_arch_arm,
641 arm_jtab, sizeof (arm_jtab), 8
642 }
643 ,
644 {
645 #define MARM_WINCE 10
646 "arm-wince", ".byte", ".short", ".long", ".asciz", "@",
647 "ldr\tip,[pc]\n\tldr\tpc,[ip]\n\t.long",
648 ".global", ".space", ".align\t2",".align\t4", "-mapcs-32",
649 "pe-arm-wince-little", bfd_arch_arm,
650 arm_jtab, sizeof (arm_jtab), 8
651 }
652 ,
653 {
654 #define MX86 11
655 "i386:x86-64", ".byte", ".short", ".long", ".asciz", "#",
656 "jmp *", ".global", ".space", ".align\t2",".align\t4", "",
657 "pe-x86-64",bfd_arch_i386,
658 i386_jtab, sizeof (i386_jtab), 2
659 }
660 ,
661 { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }
662 };
663
664 typedef struct dlist
665 {
666 char *text;
667 struct dlist *next;
668 }
669 dlist_type;
670
671 typedef struct export
672 {
673 const char *name;
674 const char *internal_name;
675 const char *import_name;
676 int ordinal;
677 int constant;
678 int noname; /* Don't put name in image file. */
679 int private; /* Don't put reference in import lib. */
680 int data;
681 int hint;
682 int forward; /* Number of forward label, 0 means no forward. */
683 struct export *next;
684 }
685 export_type;
686
687 /* A list of symbols which we should not export. */
688
689 struct string_list
690 {
691 struct string_list *next;
692 char *string;
693 };
694
695 static struct string_list *excludes;
696
697 static const char *rvaafter (int);
698 static const char *rvabefore (int);
699 static const char *asm_prefix (int, const char *);
700 static void process_def_file (const char *);
701 static void new_directive (char *);
702 static void append_import (const char *, const char *, int);
703 static void run (const char *, char *);
704 static void scan_drectve_symbols (bfd *);
705 static void scan_filtered_symbols (bfd *, void *, long, unsigned int);
706 static void add_excludes (const char *);
707 static bfd_boolean match_exclude (const char *);
708 static void set_default_excludes (void);
709 static long filter_symbols (bfd *, void *, long, unsigned int);
710 static void scan_all_symbols (bfd *);
711 static void scan_open_obj_file (bfd *);
712 static void scan_obj_file (const char *);
713 static void dump_def_info (FILE *);
714 static int sfunc (const void *, const void *);
715 static void flush_page (FILE *, long *, int, int);
716 static void gen_def_file (void);
717 static void generate_idata_ofile (FILE *);
718 static void assemble_file (const char *, const char *);
719 static void gen_exp_file (void);
720 static const char *xlate (const char *);
721 static char *make_label (const char *, const char *);
722 static char *make_imp_label (const char *, const char *);
723 static bfd *make_one_lib_file (export_type *, int);
724 static bfd *make_head (void);
725 static bfd *make_tail (void);
726 static void gen_lib_file (void);
727 static int pfunc (const void *, const void *);
728 static int nfunc (const void *, const void *);
729 static void remove_null_names (export_type **);
730 static void process_duplicates (export_type **);
731 static void fill_ordinals (export_type **);
732 static void mangle_defs (void);
733 static void usage (FILE *, int);
734 static void inform (const char *, ...) ATTRIBUTE_PRINTF_1;
735 static void set_dll_name_from_def (const char *);
736
737 static char *
prefix_encode(char * start,unsigned code)738 prefix_encode (char *start, unsigned code)
739 {
740 static char alpha[26] = "abcdefghijklmnopqrstuvwxyz";
741 static char buf[32];
742 char *p;
743 strcpy (buf, start);
744 p = strchr (buf, '\0');
745 do
746 *p++ = alpha[code % sizeof (alpha)];
747 while ((code /= sizeof (alpha)) != 0);
748 *p = '\0';
749 return buf;
750 }
751
752 static char *
dlltmp(char ** buf,const char * fmt)753 dlltmp (char **buf, const char *fmt)
754 {
755 if (!*buf)
756 {
757 *buf = malloc (strlen (tmp_prefix) + 64);
758 sprintf (*buf, fmt, tmp_prefix);
759 }
760 return *buf;
761 }
762
763 static void
inform(const char * message,...)764 inform VPARAMS ((const char * message, ...))
765 {
766 VA_OPEN (args, message);
767 VA_FIXEDARG (args, const char *, message);
768
769 if (!verbose)
770 return;
771
772 report (message, args);
773
774 VA_CLOSE (args);
775 }
776
777 static const char *
rvaafter(int machine)778 rvaafter (int machine)
779 {
780 switch (machine)
781 {
782 case MARM:
783 case M386:
784 case MX86:
785 case MPPC:
786 case MTHUMB:
787 case MARM_INTERWORK:
788 case MMCORE_BE:
789 case MMCORE_LE:
790 case MMCORE_ELF:
791 case MMCORE_ELF_LE:
792 case MARM_EPOC:
793 case MARM_WINCE:
794 break;
795 default:
796 /* xgettext:c-format */
797 fatal (_("Internal error: Unknown machine type: %d"), machine);
798 break;
799 }
800 return "";
801 }
802
803 static const char *
rvabefore(int machine)804 rvabefore (int machine)
805 {
806 switch (machine)
807 {
808 case MARM:
809 case M386:
810 case MX86:
811 case MPPC:
812 case MTHUMB:
813 case MARM_INTERWORK:
814 case MMCORE_BE:
815 case MMCORE_LE:
816 case MMCORE_ELF:
817 case MMCORE_ELF_LE:
818 case MARM_EPOC:
819 case MARM_WINCE:
820 return ".rva\t";
821 default:
822 /* xgettext:c-format */
823 fatal (_("Internal error: Unknown machine type: %d"), machine);
824 break;
825 }
826 return "";
827 }
828
829 static const char *
asm_prefix(int machine,const char * name)830 asm_prefix (int machine, const char *name)
831 {
832 switch (machine)
833 {
834 case MARM:
835 case MPPC:
836 case MTHUMB:
837 case MARM_INTERWORK:
838 case MMCORE_BE:
839 case MMCORE_LE:
840 case MMCORE_ELF:
841 case MMCORE_ELF_LE:
842 case MARM_EPOC:
843 case MARM_WINCE:
844 break;
845 case M386:
846 case MX86:
847 /* Symbol names starting with ? do not have a leading underscore. */
848 if (name && *name == '?')
849 break;
850 else
851 return "_";
852 default:
853 /* xgettext:c-format */
854 fatal (_("Internal error: Unknown machine type: %d"), machine);
855 break;
856 }
857 return "";
858 }
859
860 #define ASM_BYTE mtable[machine].how_byte
861 #define ASM_SHORT mtable[machine].how_short
862 #define ASM_LONG mtable[machine].how_long
863 #define ASM_TEXT mtable[machine].how_asciz
864 #define ASM_C mtable[machine].how_comment
865 #define ASM_JUMP mtable[machine].how_jump
866 #define ASM_GLOBAL mtable[machine].how_global
867 #define ASM_SPACE mtable[machine].how_space
868 #define ASM_ALIGN_SHORT mtable[machine].how_align_short
869 #define ASM_RVA_BEFORE rvabefore (machine)
870 #define ASM_RVA_AFTER rvaafter (machine)
871 #define ASM_PREFIX(NAME) asm_prefix (machine, (NAME))
872 #define ASM_ALIGN_LONG mtable[machine].how_align_long
873 #define HOW_BFD_READ_TARGET 0 /* Always default. */
874 #define HOW_BFD_WRITE_TARGET mtable[machine].how_bfd_target
875 #define HOW_BFD_ARCH mtable[machine].how_bfd_arch
876 #define HOW_JTAB mtable[machine].how_jtab
877 #define HOW_JTAB_SIZE mtable[machine].how_jtab_size
878 #define HOW_JTAB_ROFF mtable[machine].how_jtab_roff
879 #define ASM_SWITCHES mtable[machine].how_default_as_switches
880
881 static char **oav;
882
883 static void
process_def_file(const char * name)884 process_def_file (const char *name)
885 {
886 FILE *f = fopen (name, FOPEN_RT);
887
888 if (!f)
889 /* xgettext:c-format */
890 fatal (_("Can't open def file: %s"), name);
891
892 yyin = f;
893
894 /* xgettext:c-format */
895 inform (_("Processing def file: %s"), name);
896
897 yyparse ();
898
899 inform (_("Processed def file"));
900 }
901
902 /**********************************************************************/
903
904 /* Communications with the parser. */
905
906 static int d_nfuncs; /* Number of functions exported. */
907 static int d_named_nfuncs; /* Number of named functions exported. */
908 static int d_low_ord; /* Lowest ordinal index. */
909 static int d_high_ord; /* Highest ordinal index. */
910 static export_type *d_exports; /* List of exported functions. */
911 static export_type **d_exports_lexically; /* Vector of exported functions in alpha order. */
912 static dlist_type *d_list; /* Descriptions. */
913 static dlist_type *a_list; /* Stuff to go in directives. */
914 static int d_nforwards = 0; /* Number of forwarded exports. */
915
916 static int d_is_dll;
917 static int d_is_exe;
918
919 int
yyerror(const char * err ATTRIBUTE_UNUSED)920 yyerror (const char * err ATTRIBUTE_UNUSED)
921 {
922 /* xgettext:c-format */
923 non_fatal (_("Syntax error in def file %s:%d"), def_file, linenumber);
924
925 return 0;
926 }
927
928 void
def_exports(const char * name,const char * internal_name,int ordinal,int noname,int constant,int data,int private)929 def_exports (const char *name, const char *internal_name, int ordinal,
930 int noname, int constant, int data, int private)
931 {
932 struct export *p = (struct export *) xmalloc (sizeof (*p));
933
934 p->name = name;
935 p->internal_name = internal_name ? internal_name : name;
936 p->import_name = name;
937 p->ordinal = ordinal;
938 p->constant = constant;
939 p->noname = noname;
940 p->private = private;
941 p->data = data;
942 p->next = d_exports;
943 d_exports = p;
944 d_nfuncs++;
945
946 if ((internal_name != NULL)
947 && (strchr (internal_name, '.') != NULL))
948 p->forward = ++d_nforwards;
949 else
950 p->forward = 0; /* no forward */
951 }
952
953 static void
set_dll_name_from_def(const char * name)954 set_dll_name_from_def (const char * name)
955 {
956 const char* image_basename = lbasename (name);
957 if (image_basename != name)
958 non_fatal (_("%s: Path components stripped from image name, '%s'."),
959 def_file, name);
960 dll_name = xstrdup (image_basename);
961 }
962
963 void
def_name(const char * name,int base)964 def_name (const char *name, int base)
965 {
966 /* xgettext:c-format */
967 inform (_("NAME: %s base: %x"), name, base);
968
969 if (d_is_dll)
970 non_fatal (_("Can't have LIBRARY and NAME"));
971
972 /* If --dllname not provided, use the one in the DEF file.
973 FIXME: Is this appropriate for executables? */
974 if (! dll_name)
975 set_dll_name_from_def (name);
976 d_is_exe = 1;
977 }
978
979 void
def_library(const char * name,int base)980 def_library (const char *name, int base)
981 {
982 /* xgettext:c-format */
983 inform (_("LIBRARY: %s base: %x"), name, base);
984
985 if (d_is_exe)
986 non_fatal (_("Can't have LIBRARY and NAME"));
987
988 /* If --dllname not provided, use the one in the DEF file. */
989 if (! dll_name)
990 set_dll_name_from_def (name);
991 d_is_dll = 1;
992 }
993
994 void
def_description(const char * desc)995 def_description (const char *desc)
996 {
997 dlist_type *d = (dlist_type *) xmalloc (sizeof (dlist_type));
998 d->text = xstrdup (desc);
999 d->next = d_list;
1000 d_list = d;
1001 }
1002
1003 static void
new_directive(char * dir)1004 new_directive (char *dir)
1005 {
1006 dlist_type *d = (dlist_type *) xmalloc (sizeof (dlist_type));
1007 d->text = xstrdup (dir);
1008 d->next = a_list;
1009 a_list = d;
1010 }
1011
1012 void
def_heapsize(int reserve,int commit)1013 def_heapsize (int reserve, int commit)
1014 {
1015 char b[200];
1016 if (commit > 0)
1017 sprintf (b, "-heap 0x%x,0x%x ", reserve, commit);
1018 else
1019 sprintf (b, "-heap 0x%x ", reserve);
1020 new_directive (xstrdup (b));
1021 }
1022
1023 void
def_stacksize(int reserve,int commit)1024 def_stacksize (int reserve, int commit)
1025 {
1026 char b[200];
1027 if (commit > 0)
1028 sprintf (b, "-stack 0x%x,0x%x ", reserve, commit);
1029 else
1030 sprintf (b, "-stack 0x%x ", reserve);
1031 new_directive (xstrdup (b));
1032 }
1033
1034 /* append_import simply adds the given import definition to the global
1035 import_list. It is used by def_import. */
1036
1037 static void
append_import(const char * symbol_name,const char * dll_name,int func_ordinal)1038 append_import (const char *symbol_name, const char *dll_name, int func_ordinal)
1039 {
1040 iheadtype **pq;
1041 iheadtype *q;
1042
1043 for (pq = &import_list; *pq != NULL; pq = &(*pq)->next)
1044 {
1045 if (strcmp ((*pq)->dllname, dll_name) == 0)
1046 {
1047 q = *pq;
1048 q->functail->next = xmalloc (sizeof (ifunctype));
1049 q->functail = q->functail->next;
1050 q->functail->ord = func_ordinal;
1051 q->functail->name = xstrdup (symbol_name);
1052 q->functail->next = NULL;
1053 q->nfuncs++;
1054 return;
1055 }
1056 }
1057
1058 q = xmalloc (sizeof (iheadtype));
1059 q->dllname = xstrdup (dll_name);
1060 q->nfuncs = 1;
1061 q->funchead = xmalloc (sizeof (ifunctype));
1062 q->functail = q->funchead;
1063 q->next = NULL;
1064 q->functail->name = xstrdup (symbol_name);
1065 q->functail->ord = func_ordinal;
1066 q->functail->next = NULL;
1067
1068 *pq = q;
1069 }
1070
1071 /* def_import is called from within defparse.y when an IMPORT
1072 declaration is encountered. Depending on the form of the
1073 declaration, the module name may or may not need ".dll" to be
1074 appended to it, the name of the function may be stored in internal
1075 or entry, and there may or may not be an ordinal value associated
1076 with it. */
1077
1078 /* A note regarding the parse modes:
1079 In defparse.y we have to accept import declarations which follow
1080 any one of the following forms:
1081 <func_name_in_app> = <dll_name>.<func_name_in_dll>
1082 <func_name_in_app> = <dll_name>.<number>
1083 <dll_name>.<func_name_in_dll>
1084 <dll_name>.<number>
1085 Furthermore, the dll's name may or may not end with ".dll", which
1086 complicates the parsing a little. Normally the dll's name is
1087 passed to def_import() in the "module" parameter, but when it ends
1088 with ".dll" it gets passed in "module" sans ".dll" and that needs
1089 to be reappended.
1090
1091 def_import gets five parameters:
1092 APP_NAME - the name of the function in the application, if
1093 present, or NULL if not present.
1094 MODULE - the name of the dll, possibly sans extension (ie, '.dll').
1095 DLLEXT - the extension of the dll, if present, NULL if not present.
1096 ENTRY - the name of the function in the dll, if present, or NULL.
1097 ORD_VAL - the numerical tag of the function in the dll, if present,
1098 or NULL. Exactly one of <entry> or <ord_val> must be
1099 present (i.e., not NULL). */
1100
1101 void
def_import(const char * app_name,const char * module,const char * dllext,const char * entry,int ord_val)1102 def_import (const char *app_name, const char *module, const char *dllext,
1103 const char *entry, int ord_val)
1104 {
1105 const char *application_name;
1106 char *buf;
1107
1108 if (entry != NULL)
1109 application_name = entry;
1110 else
1111 {
1112 if (app_name != NULL)
1113 application_name = app_name;
1114 else
1115 application_name = "";
1116 }
1117
1118 if (dllext != NULL)
1119 {
1120 buf = (char *) alloca (strlen (module) + strlen (dllext) + 2);
1121 sprintf (buf, "%s.%s", module, dllext);
1122 module = buf;
1123 }
1124
1125 append_import (application_name, module, ord_val);
1126 }
1127
1128 void
def_version(int major,int minor)1129 def_version (int major, int minor)
1130 {
1131 printf ("VERSION %d.%d\n", major, minor);
1132 }
1133
1134 void
def_section(const char * name,int attr)1135 def_section (const char *name, int attr)
1136 {
1137 char buf[200];
1138 char atts[5];
1139 char *d = atts;
1140 if (attr & 1)
1141 *d++ = 'R';
1142
1143 if (attr & 2)
1144 *d++ = 'W';
1145 if (attr & 4)
1146 *d++ = 'X';
1147 if (attr & 8)
1148 *d++ = 'S';
1149 *d++ = 0;
1150 sprintf (buf, "-attr %s %s", name, atts);
1151 new_directive (xstrdup (buf));
1152 }
1153
1154 void
def_code(int attr)1155 def_code (int attr)
1156 {
1157
1158 def_section ("CODE", attr);
1159 }
1160
1161 void
def_data(int attr)1162 def_data (int attr)
1163 {
1164 def_section ("DATA", attr);
1165 }
1166
1167 /**********************************************************************/
1168
1169 static void
run(const char * what,char * args)1170 run (const char *what, char *args)
1171 {
1172 char *s;
1173 int pid, wait_status;
1174 int i;
1175 const char **argv;
1176 char *errmsg_fmt, *errmsg_arg;
1177 char *temp_base = choose_temp_base ();
1178
1179 inform ("run: %s %s", what, args);
1180
1181 /* Count the args */
1182 i = 0;
1183 for (s = args; *s; s++)
1184 if (*s == ' ')
1185 i++;
1186 i++;
1187 argv = alloca (sizeof (char *) * (i + 3));
1188 i = 0;
1189 argv[i++] = what;
1190 s = args;
1191 while (1)
1192 {
1193 while (*s == ' ')
1194 ++s;
1195 argv[i++] = s;
1196 while (*s != ' ' && *s != 0)
1197 s++;
1198 if (*s == 0)
1199 break;
1200 *s++ = 0;
1201 }
1202 argv[i++] = NULL;
1203
1204 pid = pexecute (argv[0], (char * const *) argv, program_name, temp_base,
1205 &errmsg_fmt, &errmsg_arg, PEXECUTE_ONE | PEXECUTE_SEARCH);
1206
1207 if (pid == -1)
1208 {
1209 inform (strerror (errno));
1210
1211 fatal (errmsg_fmt, errmsg_arg);
1212 }
1213
1214 pid = pwait (pid, & wait_status, 0);
1215
1216 if (pid == -1)
1217 {
1218 /* xgettext:c-format */
1219 fatal (_("wait: %s"), strerror (errno));
1220 }
1221 else if (WIFSIGNALED (wait_status))
1222 {
1223 /* xgettext:c-format */
1224 fatal (_("subprocess got fatal signal %d"), WTERMSIG (wait_status));
1225 }
1226 else if (WIFEXITED (wait_status))
1227 {
1228 if (WEXITSTATUS (wait_status) != 0)
1229 /* xgettext:c-format */
1230 non_fatal (_("%s exited with status %d"),
1231 what, WEXITSTATUS (wait_status));
1232 }
1233 else
1234 abort ();
1235 }
1236
1237 /* Look for a list of symbols to export in the .drectve section of
1238 ABFD. Pass each one to def_exports. */
1239
1240 static void
scan_drectve_symbols(bfd * abfd)1241 scan_drectve_symbols (bfd *abfd)
1242 {
1243 asection * s;
1244 int size;
1245 char * buf;
1246 char * p;
1247 char * e;
1248
1249 /* Look for .drectve's */
1250 s = bfd_get_section_by_name (abfd, DRECTVE_SECTION_NAME);
1251
1252 if (s == NULL)
1253 return;
1254
1255 size = bfd_get_section_size (s);
1256 buf = xmalloc (size);
1257
1258 bfd_get_section_contents (abfd, s, buf, 0, size);
1259
1260 /* xgettext:c-format */
1261 inform (_("Sucking in info from %s section in %s"),
1262 DRECTVE_SECTION_NAME, bfd_get_filename (abfd));
1263
1264 /* Search for -export: strings. The exported symbols can optionally
1265 have type tags (eg., -export:foo,data), so handle those as well.
1266 Currently only data tag is supported. */
1267 p = buf;
1268 e = buf + size;
1269 while (p < e)
1270 {
1271 if (p[0] == '-'
1272 && CONST_STRNEQ (p, "-export:"))
1273 {
1274 char * name;
1275 char * c;
1276 flagword flags = BSF_FUNCTION;
1277
1278 p += 8;
1279 name = p;
1280 while (p < e && *p != ',' && *p != ' ' && *p != '-')
1281 p++;
1282 c = xmalloc (p - name + 1);
1283 memcpy (c, name, p - name);
1284 c[p - name] = 0;
1285 if (p < e && *p == ',') /* found type tag. */
1286 {
1287 char *tag_start = ++p;
1288 while (p < e && *p != ' ' && *p != '-')
1289 p++;
1290 if (CONST_STRNEQ (tag_start, "data"))
1291 flags &= ~BSF_FUNCTION;
1292 }
1293
1294 /* FIXME: The 5th arg is for the `constant' field.
1295 What should it be? Not that it matters since it's not
1296 currently useful. */
1297 def_exports (c, 0, -1, 0, 0, ! (flags & BSF_FUNCTION), 0);
1298
1299 if (add_stdcall_alias && strchr (c, '@'))
1300 {
1301 int lead_at = (*c == '@') ;
1302 char *exported_name = xstrdup (c + lead_at);
1303 char *atsym = strchr (exported_name, '@');
1304 *atsym = '\0';
1305 /* Note: stdcall alias symbols can never be data. */
1306 def_exports (exported_name, xstrdup (c), -1, 0, 0, 0, 0);
1307 }
1308 }
1309 else
1310 p++;
1311 }
1312 free (buf);
1313 }
1314
1315 /* Look through the symbols in MINISYMS, and add each one to list of
1316 symbols to export. */
1317
1318 static void
scan_filtered_symbols(bfd * abfd,void * minisyms,long symcount,unsigned int size)1319 scan_filtered_symbols (bfd *abfd, void *minisyms, long symcount,
1320 unsigned int size)
1321 {
1322 asymbol *store;
1323 bfd_byte *from, *fromend;
1324
1325 store = bfd_make_empty_symbol (abfd);
1326 if (store == NULL)
1327 bfd_fatal (bfd_get_filename (abfd));
1328
1329 from = (bfd_byte *) minisyms;
1330 fromend = from + symcount * size;
1331 for (; from < fromend; from += size)
1332 {
1333 asymbol *sym;
1334 const char *symbol_name;
1335
1336 sym = bfd_minisymbol_to_symbol (abfd, FALSE, from, store);
1337 if (sym == NULL)
1338 bfd_fatal (bfd_get_filename (abfd));
1339
1340 symbol_name = bfd_asymbol_name (sym);
1341 if (bfd_get_symbol_leading_char (abfd) == symbol_name[0])
1342 ++symbol_name;
1343
1344 def_exports (xstrdup (symbol_name) , 0, -1, 0, 0,
1345 ! (sym->flags & BSF_FUNCTION), 0);
1346
1347 if (add_stdcall_alias && strchr (symbol_name, '@'))
1348 {
1349 int lead_at = (*symbol_name == '@');
1350 char *exported_name = xstrdup (symbol_name + lead_at);
1351 char *atsym = strchr (exported_name, '@');
1352 *atsym = '\0';
1353 /* Note: stdcall alias symbols can never be data. */
1354 def_exports (exported_name, xstrdup (symbol_name), -1, 0, 0, 0, 0);
1355 }
1356 }
1357 }
1358
1359 /* Add a list of symbols to exclude. */
1360
1361 static void
add_excludes(const char * new_excludes)1362 add_excludes (const char *new_excludes)
1363 {
1364 char *local_copy;
1365 char *exclude_string;
1366
1367 local_copy = xstrdup (new_excludes);
1368
1369 exclude_string = strtok (local_copy, ",:");
1370 for (; exclude_string; exclude_string = strtok (NULL, ",:"))
1371 {
1372 struct string_list *new_exclude;
1373
1374 new_exclude = ((struct string_list *)
1375 xmalloc (sizeof (struct string_list)));
1376 new_exclude->string = (char *) xmalloc (strlen (exclude_string) + 2);
1377 /* Don't add a leading underscore for fastcall symbols. */
1378 if (*exclude_string == '@')
1379 sprintf (new_exclude->string, "%s", exclude_string);
1380 else
1381 sprintf (new_exclude->string, "_%s", exclude_string);
1382 new_exclude->next = excludes;
1383 excludes = new_exclude;
1384
1385 /* xgettext:c-format */
1386 inform (_("Excluding symbol: %s"), exclude_string);
1387 }
1388
1389 free (local_copy);
1390 }
1391
1392 /* See if STRING is on the list of symbols to exclude. */
1393
1394 static bfd_boolean
match_exclude(const char * string)1395 match_exclude (const char *string)
1396 {
1397 struct string_list *excl_item;
1398
1399 for (excl_item = excludes; excl_item; excl_item = excl_item->next)
1400 if (strcmp (string, excl_item->string) == 0)
1401 return TRUE;
1402 return FALSE;
1403 }
1404
1405 /* Add the default list of symbols to exclude. */
1406
1407 static void
set_default_excludes(void)1408 set_default_excludes (void)
1409 {
1410 add_excludes (default_excludes);
1411 }
1412
1413 /* Choose which symbols to export. */
1414
1415 static long
filter_symbols(bfd * abfd,void * minisyms,long symcount,unsigned int size)1416 filter_symbols (bfd *abfd, void *minisyms, long symcount, unsigned int size)
1417 {
1418 bfd_byte *from, *fromend, *to;
1419 asymbol *store;
1420
1421 store = bfd_make_empty_symbol (abfd);
1422 if (store == NULL)
1423 bfd_fatal (bfd_get_filename (abfd));
1424
1425 from = (bfd_byte *) minisyms;
1426 fromend = from + symcount * size;
1427 to = (bfd_byte *) minisyms;
1428
1429 for (; from < fromend; from += size)
1430 {
1431 int keep = 0;
1432 asymbol *sym;
1433
1434 sym = bfd_minisymbol_to_symbol (abfd, FALSE, (const void *) from, store);
1435 if (sym == NULL)
1436 bfd_fatal (bfd_get_filename (abfd));
1437
1438 /* Check for external and defined only symbols. */
1439 keep = (((sym->flags & BSF_GLOBAL) != 0
1440 || (sym->flags & BSF_WEAK) != 0
1441 || bfd_is_com_section (sym->section))
1442 && ! bfd_is_und_section (sym->section));
1443
1444 keep = keep && ! match_exclude (sym->name);
1445
1446 if (keep)
1447 {
1448 memcpy (to, from, size);
1449 to += size;
1450 }
1451 }
1452
1453 return (to - (bfd_byte *) minisyms) / size;
1454 }
1455
1456 /* Export all symbols in ABFD, except for ones we were told not to
1457 export. */
1458
1459 static void
scan_all_symbols(bfd * abfd)1460 scan_all_symbols (bfd *abfd)
1461 {
1462 long symcount;
1463 void *minisyms;
1464 unsigned int size;
1465
1466 /* Ignore bfds with an import descriptor table. We assume that any
1467 such BFD contains symbols which are exported from another DLL,
1468 and we don't want to reexport them from here. */
1469 if (bfd_get_section_by_name (abfd, ".idata$4"))
1470 return;
1471
1472 if (! (bfd_get_file_flags (abfd) & HAS_SYMS))
1473 {
1474 /* xgettext:c-format */
1475 non_fatal (_("%s: no symbols"), bfd_get_filename (abfd));
1476 return;
1477 }
1478
1479 symcount = bfd_read_minisymbols (abfd, FALSE, &minisyms, &size);
1480 if (symcount < 0)
1481 bfd_fatal (bfd_get_filename (abfd));
1482
1483 if (symcount == 0)
1484 {
1485 /* xgettext:c-format */
1486 non_fatal (_("%s: no symbols"), bfd_get_filename (abfd));
1487 return;
1488 }
1489
1490 /* Discard the symbols we don't want to export. It's OK to do this
1491 in place; we'll free the storage anyway. */
1492
1493 symcount = filter_symbols (abfd, minisyms, symcount, size);
1494 scan_filtered_symbols (abfd, minisyms, symcount, size);
1495
1496 free (minisyms);
1497 }
1498
1499 /* Look at the object file to decide which symbols to export. */
1500
1501 static void
scan_open_obj_file(bfd * abfd)1502 scan_open_obj_file (bfd *abfd)
1503 {
1504 if (export_all_symbols)
1505 scan_all_symbols (abfd);
1506 else
1507 scan_drectve_symbols (abfd);
1508
1509 /* FIXME: we ought to read in and block out the base relocations. */
1510
1511 /* xgettext:c-format */
1512 inform (_("Done reading %s"), bfd_get_filename (abfd));
1513 }
1514
1515 static void
scan_obj_file(const char * filename)1516 scan_obj_file (const char *filename)
1517 {
1518 bfd * f = bfd_openr (filename, 0);
1519
1520 if (!f)
1521 /* xgettext:c-format */
1522 fatal (_("Unable to open object file: %s"), filename);
1523
1524 /* xgettext:c-format */
1525 inform (_("Scanning object file %s"), filename);
1526
1527 if (bfd_check_format (f, bfd_archive))
1528 {
1529 bfd *arfile = bfd_openr_next_archived_file (f, 0);
1530 while (arfile)
1531 {
1532 if (bfd_check_format (arfile, bfd_object))
1533 scan_open_obj_file (arfile);
1534 bfd_close (arfile);
1535 arfile = bfd_openr_next_archived_file (f, arfile);
1536 }
1537
1538 #ifdef DLLTOOL_MCORE_ELF
1539 if (mcore_elf_out_file)
1540 inform (_("Cannot produce mcore-elf dll from archive file: %s"), filename);
1541 #endif
1542 }
1543 else if (bfd_check_format (f, bfd_object))
1544 {
1545 scan_open_obj_file (f);
1546
1547 #ifdef DLLTOOL_MCORE_ELF
1548 if (mcore_elf_out_file)
1549 mcore_elf_cache_filename ((char *) filename);
1550 #endif
1551 }
1552
1553 bfd_close (f);
1554 }
1555
1556 /**********************************************************************/
1557
1558 static void
dump_def_info(FILE * f)1559 dump_def_info (FILE *f)
1560 {
1561 int i;
1562 export_type *exp;
1563 fprintf (f, "%s ", ASM_C);
1564 for (i = 0; oav[i]; i++)
1565 fprintf (f, "%s ", oav[i]);
1566 fprintf (f, "\n");
1567 for (i = 0, exp = d_exports; exp; i++, exp = exp->next)
1568 {
1569 fprintf (f, "%s %d = %s %s @ %d %s%s%s%s\n",
1570 ASM_C,
1571 i,
1572 exp->name,
1573 exp->internal_name,
1574 exp->ordinal,
1575 exp->noname ? "NONAME " : "",
1576 exp->private ? "PRIVATE " : "",
1577 exp->constant ? "CONSTANT" : "",
1578 exp->data ? "DATA" : "");
1579 }
1580 }
1581
1582 /* Generate the .exp file. */
1583
1584 static int
sfunc(const void * a,const void * b)1585 sfunc (const void *a, const void *b)
1586 {
1587 return *(const long *) a - *(const long *) b;
1588 }
1589
1590 static void
flush_page(FILE * f,long * need,int page_addr,int on_page)1591 flush_page (FILE *f, long *need, int page_addr, int on_page)
1592 {
1593 int i;
1594
1595 /* Flush this page. */
1596 fprintf (f, "\t%s\t0x%08x\t%s Starting RVA for chunk\n",
1597 ASM_LONG,
1598 page_addr,
1599 ASM_C);
1600 fprintf (f, "\t%s\t0x%x\t%s Size of block\n",
1601 ASM_LONG,
1602 (on_page * 2) + (on_page & 1) * 2 + 8,
1603 ASM_C);
1604
1605 for (i = 0; i < on_page; i++)
1606 {
1607 long needed = need[i];
1608
1609 if (needed)
1610 needed = ((needed - page_addr) | 0x3000) & 0xffff;
1611
1612 fprintf (f, "\t%s\t0x%lx\n", ASM_SHORT, needed);
1613 }
1614
1615 /* And padding */
1616 if (on_page & 1)
1617 fprintf (f, "\t%s\t0x%x\n", ASM_SHORT, 0 | 0x0000);
1618 }
1619
1620 static void
gen_def_file(void)1621 gen_def_file (void)
1622 {
1623 int i;
1624 export_type *exp;
1625
1626 inform (_("Adding exports to output file"));
1627
1628 fprintf (output_def, ";");
1629 for (i = 0; oav[i]; i++)
1630 fprintf (output_def, " %s", oav[i]);
1631
1632 fprintf (output_def, "\nEXPORTS\n");
1633
1634 for (i = 0, exp = d_exports; exp; i++, exp = exp->next)
1635 {
1636 char *quote = strchr (exp->name, '.') ? "\"" : "";
1637 char *res = cplus_demangle (exp->internal_name, DMGL_ANSI | DMGL_PARAMS);
1638
1639 if (res)
1640 {
1641 fprintf (output_def,";\t%s\n", res);
1642 free (res);
1643 }
1644
1645 if (strcmp (exp->name, exp->internal_name) == 0)
1646 {
1647 fprintf (output_def, "\t%s%s%s @ %d%s%s%s\n",
1648 quote,
1649 exp->name,
1650 quote,
1651 exp->ordinal,
1652 exp->noname ? " NONAME" : "",
1653 exp->private ? "PRIVATE " : "",
1654 exp->data ? " DATA" : "");
1655 }
1656 else
1657 {
1658 char * quote1 = strchr (exp->internal_name, '.') ? "\"" : "";
1659 /* char *alias = */
1660 fprintf (output_def, "\t%s%s%s = %s%s%s @ %d%s%s%s\n",
1661 quote,
1662 exp->name,
1663 quote,
1664 quote1,
1665 exp->internal_name,
1666 quote1,
1667 exp->ordinal,
1668 exp->noname ? " NONAME" : "",
1669 exp->private ? "PRIVATE " : "",
1670 exp->data ? " DATA" : "");
1671 }
1672 }
1673
1674 inform (_("Added exports to output file"));
1675 }
1676
1677 /* generate_idata_ofile generates the portable assembly source code
1678 for the idata sections. It appends the source code to the end of
1679 the file. */
1680
1681 static void
generate_idata_ofile(FILE * filvar)1682 generate_idata_ofile (FILE *filvar)
1683 {
1684 iheadtype *headptr;
1685 ifunctype *funcptr;
1686 int headindex;
1687 int funcindex;
1688 int nheads;
1689
1690 if (import_list == NULL)
1691 return;
1692
1693 fprintf (filvar, "%s Import data sections\n", ASM_C);
1694 fprintf (filvar, "\n\t.section\t.idata$2\n");
1695 fprintf (filvar, "\t%s\tdoi_idata\n", ASM_GLOBAL);
1696 fprintf (filvar, "doi_idata:\n");
1697
1698 nheads = 0;
1699 for (headptr = import_list; headptr != NULL; headptr = headptr->next)
1700 {
1701 fprintf (filvar, "\t%slistone%d%s\t%s %s\n",
1702 ASM_RVA_BEFORE, nheads, ASM_RVA_AFTER,
1703 ASM_C, headptr->dllname);
1704 fprintf (filvar, "\t%s\t0\n", ASM_LONG);
1705 fprintf (filvar, "\t%s\t0\n", ASM_LONG);
1706 fprintf (filvar, "\t%sdllname%d%s\n",
1707 ASM_RVA_BEFORE, nheads, ASM_RVA_AFTER);
1708 fprintf (filvar, "\t%slisttwo%d%s\n\n",
1709 ASM_RVA_BEFORE, nheads, ASM_RVA_AFTER);
1710 nheads++;
1711 }
1712
1713 fprintf (filvar, "\t%s\t0\n", ASM_LONG); /* NULL record at */
1714 fprintf (filvar, "\t%s\t0\n", ASM_LONG); /* end of idata$2 */
1715 fprintf (filvar, "\t%s\t0\n", ASM_LONG); /* section */
1716 fprintf (filvar, "\t%s\t0\n", ASM_LONG);
1717 fprintf (filvar, "\t%s\t0\n", ASM_LONG);
1718
1719 fprintf (filvar, "\n\t.section\t.idata$4\n");
1720 headindex = 0;
1721 for (headptr = import_list; headptr != NULL; headptr = headptr->next)
1722 {
1723 fprintf (filvar, "listone%d:\n", headindex);
1724 for (funcindex = 0; funcindex < headptr->nfuncs; funcindex++)
1725 #ifdef DLLTOOL_MX86_64
1726 fprintf (filvar, "\t%sfuncptr%d_%d%s\n%s\t0\n",
1727 ASM_RVA_BEFORE, headindex, funcindex, ASM_RVA_AFTER,ASM_LONG);
1728 #else
1729 fprintf (filvar, "\t%sfuncptr%d_%d%s\n",
1730 ASM_RVA_BEFORE, headindex, funcindex, ASM_RVA_AFTER);
1731 #endif
1732 #ifdef DLLTOOL_MX86_64
1733 fprintf (filvar, "\t%s\t0\n\t%s\t0\n", ASM_LONG, ASM_LONG); /* NULL terminating list. */
1734 #else
1735 fprintf (filvar, "\t%s\t0\n", ASM_LONG); /* NULL terminating list. */
1736 #endif
1737 headindex++;
1738 }
1739
1740 fprintf (filvar, "\n\t.section\t.idata$5\n");
1741 headindex = 0;
1742 for (headptr = import_list; headptr != NULL; headptr = headptr->next)
1743 {
1744 fprintf (filvar, "listtwo%d:\n", headindex);
1745 for (funcindex = 0; funcindex < headptr->nfuncs; funcindex++)
1746 #ifdef DLLTOOL_MX86_64
1747 fprintf (filvar, "\t%sfuncptr%d_%d%s\n%s\t0\n",
1748 ASM_RVA_BEFORE, headindex, funcindex, ASM_RVA_AFTER,ASM_LONG);
1749 #else
1750 fprintf (filvar, "\t%sfuncptr%d_%d%s\n",
1751 ASM_RVA_BEFORE, headindex, funcindex, ASM_RVA_AFTER);
1752 #endif
1753 #ifdef DLLTOOL_MX86_64
1754 fprintf (filvar, "\t%s\t0\n\t%s\t0\n", ASM_LONG, ASM_LONG); /* NULL terminating list. */
1755 #else
1756 fprintf (filvar, "\t%s\t0\n", ASM_LONG); /* NULL terminating list. */
1757 #endif
1758 headindex++;
1759 }
1760
1761 fprintf (filvar, "\n\t.section\t.idata$6\n");
1762 headindex = 0;
1763 for (headptr = import_list; headptr != NULL; headptr = headptr->next)
1764 {
1765 funcindex = 0;
1766 for (funcptr = headptr->funchead; funcptr != NULL;
1767 funcptr = funcptr->next)
1768 {
1769 fprintf (filvar,"funcptr%d_%d:\n", headindex, funcindex);
1770 fprintf (filvar,"\t%s\t%d\n", ASM_SHORT,
1771 ((funcptr->ord) & 0xFFFF));
1772 fprintf (filvar,"\t%s\t\"%s\"\n", ASM_TEXT, funcptr->name);
1773 fprintf (filvar,"\t%s\t0\n", ASM_BYTE);
1774 funcindex++;
1775 }
1776 headindex++;
1777 }
1778
1779 fprintf (filvar, "\n\t.section\t.idata$7\n");
1780 headindex = 0;
1781 for (headptr = import_list; headptr != NULL; headptr = headptr->next)
1782 {
1783 fprintf (filvar,"dllname%d:\n", headindex);
1784 fprintf (filvar,"\t%s\t\"%s\"\n", ASM_TEXT, headptr->dllname);
1785 fprintf (filvar,"\t%s\t0\n", ASM_BYTE);
1786 headindex++;
1787 }
1788 }
1789
1790 /* Assemble the specified file. */
1791 static void
assemble_file(const char * source,const char * dest)1792 assemble_file (const char * source, const char * dest)
1793 {
1794 char * cmd;
1795
1796 cmd = (char *) alloca (strlen (ASM_SWITCHES) + strlen (as_flags)
1797 + strlen (source) + strlen (dest) + 50);
1798
1799 sprintf (cmd, "%s %s -o %s %s", ASM_SWITCHES, as_flags, dest, source);
1800
1801 run (as_name, cmd);
1802 }
1803
1804 static void
gen_exp_file(void)1805 gen_exp_file (void)
1806 {
1807 FILE *f;
1808 int i;
1809 export_type *exp;
1810 dlist_type *dl;
1811
1812 /* xgettext:c-format */
1813 inform (_("Generating export file: %s"), exp_name);
1814
1815 f = fopen (TMP_ASM, FOPEN_WT);
1816 if (!f)
1817 /* xgettext:c-format */
1818 fatal (_("Unable to open temporary assembler file: %s"), TMP_ASM);
1819
1820 /* xgettext:c-format */
1821 inform (_("Opened temporary file: %s"), TMP_ASM);
1822
1823 dump_def_info (f);
1824
1825 if (d_exports)
1826 {
1827 fprintf (f, "\t.section .edata\n\n");
1828 fprintf (f, "\t%s 0 %s Allways 0\n", ASM_LONG, ASM_C);
1829 fprintf (f, "\t%s 0x%lx %s Time and date\n", ASM_LONG, (long) time(0),
1830 ASM_C);
1831 fprintf (f, "\t%s 0 %s Major and Minor version\n", ASM_LONG, ASM_C);
1832 fprintf (f, "\t%sname%s %s Ptr to name of dll\n", ASM_RVA_BEFORE, ASM_RVA_AFTER, ASM_C);
1833 fprintf (f, "\t%s %d %s Starting ordinal of exports\n", ASM_LONG, d_low_ord, ASM_C);
1834
1835
1836 fprintf (f, "\t%s %d %s Number of functions\n", ASM_LONG, d_high_ord - d_low_ord + 1, ASM_C);
1837 fprintf(f,"\t%s named funcs %d, low ord %d, high ord %d\n",
1838 ASM_C,
1839 d_named_nfuncs, d_low_ord, d_high_ord);
1840 fprintf (f, "\t%s %d %s Number of names\n", ASM_LONG,
1841 show_allnames ? d_high_ord - d_low_ord + 1 : d_named_nfuncs, ASM_C);
1842 fprintf (f, "\t%safuncs%s %s Address of functions\n", ASM_RVA_BEFORE, ASM_RVA_AFTER, ASM_C);
1843
1844 fprintf (f, "\t%sanames%s %s Address of Name Pointer Table\n",
1845 ASM_RVA_BEFORE, ASM_RVA_AFTER, ASM_C);
1846
1847 fprintf (f, "\t%sanords%s %s Address of ordinals\n", ASM_RVA_BEFORE, ASM_RVA_AFTER, ASM_C);
1848
1849 fprintf (f, "name: %s \"%s\"\n", ASM_TEXT, dll_name);
1850
1851
1852 fprintf(f,"%s Export address Table\n", ASM_C);
1853 fprintf(f,"\t%s\n", ASM_ALIGN_LONG);
1854 fprintf (f, "afuncs:\n");
1855 i = d_low_ord;
1856
1857 for (exp = d_exports; exp; exp = exp->next)
1858 {
1859 if (exp->ordinal != i)
1860 {
1861 while (i < exp->ordinal)
1862 {
1863 fprintf(f,"\t%s\t0\n", ASM_LONG);
1864 i++;
1865 }
1866 }
1867
1868 if (exp->forward == 0)
1869 {
1870 if (exp->internal_name[0] == '@')
1871 fprintf (f, "\t%s%s%s\t%s %d\n", ASM_RVA_BEFORE,
1872 exp->internal_name, ASM_RVA_AFTER, ASM_C, exp->ordinal);
1873 else
1874 fprintf (f, "\t%s%s%s%s\t%s %d\n", ASM_RVA_BEFORE,
1875 ASM_PREFIX (exp->internal_name),
1876 exp->internal_name, ASM_RVA_AFTER, ASM_C, exp->ordinal);
1877 }
1878 else
1879 fprintf (f, "\t%sf%d%s\t%s %d\n", ASM_RVA_BEFORE,
1880 exp->forward, ASM_RVA_AFTER, ASM_C, exp->ordinal);
1881 i++;
1882 }
1883
1884 fprintf (f,"%s Export Name Pointer Table\n", ASM_C);
1885 fprintf (f, "anames:\n");
1886
1887 for (i = 0; (exp = d_exports_lexically[i]); i++)
1888 {
1889 if (!exp->noname || show_allnames)
1890 fprintf (f, "\t%sn%d%s\n",
1891 ASM_RVA_BEFORE, exp->ordinal, ASM_RVA_AFTER);
1892 }
1893
1894 fprintf (f,"%s Export Oridinal Table\n", ASM_C);
1895 fprintf (f, "anords:\n");
1896 for (i = 0; (exp = d_exports_lexically[i]); i++)
1897 {
1898 if (!exp->noname || show_allnames)
1899 fprintf (f, "\t%s %d\n", ASM_SHORT, exp->ordinal - d_low_ord);
1900 }
1901
1902 fprintf(f,"%s Export Name Table\n", ASM_C);
1903 for (i = 0; (exp = d_exports_lexically[i]); i++)
1904 {
1905 if (!exp->noname || show_allnames)
1906 fprintf (f, "n%d: %s \"%s\"\n",
1907 exp->ordinal, ASM_TEXT, xlate (exp->name));
1908 if (exp->forward != 0)
1909 fprintf (f, "f%d: %s \"%s\"\n",
1910 exp->forward, ASM_TEXT, exp->internal_name);
1911 }
1912
1913 if (a_list)
1914 {
1915 fprintf (f, "\t.section %s\n", DRECTVE_SECTION_NAME);
1916 for (dl = a_list; dl; dl = dl->next)
1917 {
1918 fprintf (f, "\t%s\t\"%s\"\n", ASM_TEXT, dl->text);
1919 }
1920 }
1921
1922 if (d_list)
1923 {
1924 fprintf (f, "\t.section .rdata\n");
1925 for (dl = d_list; dl; dl = dl->next)
1926 {
1927 char *p;
1928 int l;
1929
1930 /* We don't output as ascii because there can
1931 be quote characters in the string. */
1932 l = 0;
1933 for (p = dl->text; *p; p++)
1934 {
1935 if (l == 0)
1936 fprintf (f, "\t%s\t", ASM_BYTE);
1937 else
1938 fprintf (f, ",");
1939 fprintf (f, "%d", *p);
1940 if (p[1] == 0)
1941 {
1942 fprintf (f, ",0\n");
1943 break;
1944 }
1945 if (++l == 10)
1946 {
1947 fprintf (f, "\n");
1948 l = 0;
1949 }
1950 }
1951 }
1952 }
1953 }
1954
1955
1956 /* Add to the output file a way of getting to the exported names
1957 without using the import library. */
1958 if (add_indirect)
1959 {
1960 fprintf (f, "\t.section\t.rdata\n");
1961 for (i = 0, exp = d_exports; exp; i++, exp = exp->next)
1962 if (!exp->noname || show_allnames)
1963 {
1964 /* We use a single underscore for MS compatibility, and a
1965 double underscore for backward compatibility with old
1966 cygwin releases. */
1967 if (create_compat_implib)
1968 fprintf (f, "\t%s\t__imp_%s\n", ASM_GLOBAL, exp->name);
1969 fprintf (f, "\t%s\t_imp__%s\n", ASM_GLOBAL, exp->name);
1970 if (create_compat_implib)
1971 fprintf (f, "__imp_%s:\n", exp->name);
1972 fprintf (f, "_imp__%s:\n", exp->name);
1973 fprintf (f, "\t%s\t%s\n", ASM_LONG, exp->name);
1974 }
1975 }
1976
1977 /* Dump the reloc section if a base file is provided. */
1978 if (base_file)
1979 {
1980 int addr;
1981 long need[PAGE_SIZE];
1982 long page_addr;
1983 int numbytes;
1984 int num_entries;
1985 long *copy;
1986 int j;
1987 int on_page;
1988 fprintf (f, "\t.section\t.init\n");
1989 fprintf (f, "lab:\n");
1990
1991 fseek (base_file, 0, SEEK_END);
1992 numbytes = ftell (base_file);
1993 fseek (base_file, 0, SEEK_SET);
1994 copy = xmalloc (numbytes);
1995 fread (copy, 1, numbytes, base_file);
1996 num_entries = numbytes / sizeof (long);
1997
1998
1999 fprintf (f, "\t.section\t.reloc\n");
2000 if (num_entries)
2001 {
2002 int src;
2003 int dst = 0;
2004 int last = -1;
2005 qsort (copy, num_entries, sizeof (long), sfunc);
2006 /* Delete duplicates */
2007 for (src = 0; src < num_entries; src++)
2008 {
2009 if (last != copy[src])
2010 last = copy[dst++] = copy[src];
2011 }
2012 num_entries = dst;
2013 addr = copy[0];
2014 page_addr = addr & PAGE_MASK; /* work out the page addr */
2015 on_page = 0;
2016 for (j = 0; j < num_entries; j++)
2017 {
2018 addr = copy[j];
2019 if ((addr & PAGE_MASK) != page_addr)
2020 {
2021 flush_page (f, need, page_addr, on_page);
2022 on_page = 0;
2023 page_addr = addr & PAGE_MASK;
2024 }
2025 need[on_page++] = addr;
2026 }
2027 flush_page (f, need, page_addr, on_page);
2028
2029 /* fprintf (f, "\t%s\t0,0\t%s End\n", ASM_LONG, ASM_C);*/
2030 }
2031 }
2032
2033 generate_idata_ofile (f);
2034
2035 fclose (f);
2036
2037 /* Assemble the file. */
2038 assemble_file (TMP_ASM, exp_name);
2039
2040 if (dontdeltemps == 0)
2041 unlink (TMP_ASM);
2042
2043 inform (_("Generated exports file"));
2044 }
2045
2046 static const char *
xlate(const char * name)2047 xlate (const char *name)
2048 {
2049 int lead_at = (*name == '@');
2050
2051 if (!lead_at && (add_underscore
2052 || (add_stdcall_underscore
2053 && strchr (name, '@'))))
2054 {
2055 char *copy = xmalloc (strlen (name) + 2);
2056
2057 copy[0] = '_';
2058 strcpy (copy + 1, name);
2059 name = copy;
2060 }
2061
2062 if (killat)
2063 {
2064 char *p;
2065
2066 name += lead_at;
2067 p = strchr (name, '@');
2068 if (p)
2069 *p = 0;
2070 }
2071 return name;
2072 }
2073
2074 typedef struct
2075 {
2076 int id;
2077 const char *name;
2078 int flags;
2079 int align;
2080 asection *sec;
2081 asymbol *sym;
2082 asymbol **sympp;
2083 int size;
2084 unsigned char *data;
2085 } sinfo;
2086
2087 #ifndef DLLTOOL_PPC
2088
2089 #define TEXT 0
2090 #define DATA 1
2091 #define BSS 2
2092 #define IDATA7 3
2093 #define IDATA5 4
2094 #define IDATA4 5
2095 #define IDATA6 6
2096
2097 #define NSECS 7
2098
2099 #define TEXT_SEC_FLAGS \
2100 (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY | SEC_HAS_CONTENTS)
2101 #define DATA_SEC_FLAGS (SEC_ALLOC | SEC_LOAD | SEC_DATA)
2102 #define BSS_SEC_FLAGS SEC_ALLOC
2103
2104 #define INIT_SEC_DATA(id, name, flags, align) \
2105 { id, name, flags, align, NULL, NULL, NULL, 0, NULL }
2106 static sinfo secdata[NSECS] =
2107 {
2108 INIT_SEC_DATA (TEXT, ".text", TEXT_SEC_FLAGS, 2),
2109 INIT_SEC_DATA (DATA, ".data", DATA_SEC_FLAGS, 2),
2110 INIT_SEC_DATA (BSS, ".bss", BSS_SEC_FLAGS, 2),
2111 INIT_SEC_DATA (IDATA7, ".idata$7", SEC_HAS_CONTENTS, 2),
2112 INIT_SEC_DATA (IDATA5, ".idata$5", SEC_HAS_CONTENTS, 2),
2113 INIT_SEC_DATA (IDATA4, ".idata$4", SEC_HAS_CONTENTS, 2),
2114 INIT_SEC_DATA (IDATA6, ".idata$6", SEC_HAS_CONTENTS, 1)
2115 };
2116
2117 #else
2118
2119 /* Sections numbered to make the order the same as other PowerPC NT
2120 compilers. This also keeps funny alignment thingies from happening. */
2121 #define TEXT 0
2122 #define PDATA 1
2123 #define RDATA 2
2124 #define IDATA5 3
2125 #define IDATA4 4
2126 #define IDATA6 5
2127 #define IDATA7 6
2128 #define DATA 7
2129 #define BSS 8
2130
2131 #define NSECS 9
2132
2133 static sinfo secdata[NSECS] =
2134 {
2135 { TEXT, ".text", SEC_CODE | SEC_HAS_CONTENTS, 3},
2136 { PDATA, ".pdata", SEC_HAS_CONTENTS, 2},
2137 { RDATA, ".reldata", SEC_HAS_CONTENTS, 2},
2138 { IDATA5, ".idata$5", SEC_HAS_CONTENTS, 2},
2139 { IDATA4, ".idata$4", SEC_HAS_CONTENTS, 2},
2140 { IDATA6, ".idata$6", SEC_HAS_CONTENTS, 1},
2141 { IDATA7, ".idata$7", SEC_HAS_CONTENTS, 2},
2142 { DATA, ".data", SEC_DATA, 2},
2143 { BSS, ".bss", 0, 2}
2144 };
2145
2146 #endif
2147
2148 /* This is what we're trying to make. We generate the imp symbols with
2149 both single and double underscores, for compatibility.
2150
2151 .text
2152 .global _GetFileVersionInfoSizeW@8
2153 .global __imp_GetFileVersionInfoSizeW@8
2154 _GetFileVersionInfoSizeW@8:
2155 jmp * __imp_GetFileVersionInfoSizeW@8
2156 .section .idata$7 # To force loading of head
2157 .long __version_a_head
2158 # Import Address Table
2159 .section .idata$5
2160 __imp_GetFileVersionInfoSizeW@8:
2161 .rva ID2
2162
2163 # Import Lookup Table
2164 .section .idata$4
2165 .rva ID2
2166 # Hint/Name table
2167 .section .idata$6
2168 ID2: .short 2
2169 .asciz "GetFileVersionInfoSizeW"
2170
2171
2172 For the PowerPC, here's the variation on the above scheme:
2173
2174 # Rather than a simple "jmp *", the code to get to the dll function
2175 # looks like:
2176 .text
2177 lwz r11,[tocv]__imp_function_name(r2)
2178 # RELOC: 00000000 TOCREL16,TOCDEFN __imp_function_name
2179 lwz r12,0(r11)
2180 stw r2,4(r1)
2181 mtctr r12
2182 lwz r2,4(r11)
2183 bctr */
2184
2185 static char *
make_label(const char * prefix,const char * name)2186 make_label (const char *prefix, const char *name)
2187 {
2188 int len = strlen (ASM_PREFIX (name)) + strlen (prefix) + strlen (name);
2189 char *copy = xmalloc (len + 1);
2190
2191 strcpy (copy, ASM_PREFIX (name));
2192 strcat (copy, prefix);
2193 strcat (copy, name);
2194 return copy;
2195 }
2196
2197 static char *
make_imp_label(const char * prefix,const char * name)2198 make_imp_label (const char *prefix, const char *name)
2199 {
2200 int len;
2201 char *copy;
2202
2203 if (name[0] == '@')
2204 {
2205 len = strlen (prefix) + strlen (name);
2206 copy = xmalloc (len + 1);
2207 strcpy (copy, prefix);
2208 strcat (copy, name);
2209 }
2210 else
2211 {
2212 len = strlen (ASM_PREFIX (name)) + strlen (prefix) + strlen (name);
2213 copy = xmalloc (len + 1);
2214 strcpy (copy, prefix);
2215 strcat (copy, ASM_PREFIX (name));
2216 strcat (copy, name);
2217 }
2218 return copy;
2219 }
2220
2221 static bfd *
make_one_lib_file(export_type * exp,int i)2222 make_one_lib_file (export_type *exp, int i)
2223 {
2224 bfd * abfd;
2225 asymbol * exp_label;
2226 asymbol * iname = 0;
2227 asymbol * iname2;
2228 asymbol * iname_lab;
2229 asymbol ** iname_lab_pp;
2230 asymbol ** iname_pp;
2231 #ifdef DLLTOOL_PPC
2232 asymbol ** fn_pp;
2233 asymbol ** toc_pp;
2234 #define EXTRA 2
2235 #endif
2236 #ifndef EXTRA
2237 #define EXTRA 0
2238 #endif
2239 asymbol * ptrs[NSECS + 4 + EXTRA + 1];
2240 flagword applicable;
2241 char * outname = xmalloc (strlen (TMP_STUB) + 10);
2242 int oidx = 0;
2243
2244
2245 sprintf (outname, "%s%05d.o", TMP_STUB, i);
2246
2247 abfd = bfd_openw (outname, HOW_BFD_WRITE_TARGET);
2248
2249 if (!abfd)
2250 /* xgettext:c-format */
2251 fatal (_("bfd_open failed open stub file: %s"), outname);
2252
2253 /* xgettext:c-format */
2254 inform (_("Creating stub file: %s"), outname);
2255
2256 bfd_set_format (abfd, bfd_object);
2257 bfd_set_arch_mach (abfd, HOW_BFD_ARCH, 0);
2258
2259 #ifdef DLLTOOL_ARM
2260 if (machine == MARM_INTERWORK || machine == MTHUMB)
2261 bfd_set_private_flags (abfd, F_INTERWORK);
2262 #endif
2263
2264 applicable = bfd_applicable_section_flags (abfd);
2265
2266 /* First make symbols for the sections. */
2267 for (i = 0; i < NSECS; i++)
2268 {
2269 sinfo *si = secdata + i;
2270
2271 if (si->id != i)
2272 abort();
2273 si->sec = bfd_make_section_old_way (abfd, si->name);
2274 bfd_set_section_flags (abfd,
2275 si->sec,
2276 si->flags & applicable);
2277
2278 bfd_set_section_alignment(abfd, si->sec, si->align);
2279 si->sec->output_section = si->sec;
2280 si->sym = bfd_make_empty_symbol(abfd);
2281 si->sym->name = si->sec->name;
2282 si->sym->section = si->sec;
2283 si->sym->flags = BSF_LOCAL;
2284 si->sym->value = 0;
2285 ptrs[oidx] = si->sym;
2286 si->sympp = ptrs + oidx;
2287 si->size = 0;
2288 si->data = NULL;
2289
2290 oidx++;
2291 }
2292
2293 if (! exp->data)
2294 {
2295 exp_label = bfd_make_empty_symbol (abfd);
2296 exp_label->name = make_imp_label ("", exp->name);
2297
2298 /* On PowerPC, the function name points to a descriptor in
2299 the rdata section, the first element of which is a
2300 pointer to the code (..function_name), and the second
2301 points to the .toc. */
2302 #ifdef DLLTOOL_PPC
2303 if (machine == MPPC)
2304 exp_label->section = secdata[RDATA].sec;
2305 else
2306 #endif
2307 exp_label->section = secdata[TEXT].sec;
2308
2309 exp_label->flags = BSF_GLOBAL;
2310 exp_label->value = 0;
2311
2312 #ifdef DLLTOOL_ARM
2313 if (machine == MTHUMB)
2314 bfd_coff_set_symbol_class (abfd, exp_label, C_THUMBEXTFUNC);
2315 #endif
2316 ptrs[oidx++] = exp_label;
2317 }
2318
2319 /* Generate imp symbols with one underscore for Microsoft
2320 compatibility, and with two underscores for backward
2321 compatibility with old versions of cygwin. */
2322 if (create_compat_implib)
2323 {
2324 iname = bfd_make_empty_symbol (abfd);
2325 iname->name = make_imp_label ("___imp", exp->name);
2326 iname->section = secdata[IDATA5].sec;
2327 iname->flags = BSF_GLOBAL;
2328 iname->value = 0;
2329 }
2330
2331 iname2 = bfd_make_empty_symbol (abfd);
2332 iname2->name = make_imp_label ("__imp_", exp->name);
2333 iname2->section = secdata[IDATA5].sec;
2334 iname2->flags = BSF_GLOBAL;
2335 iname2->value = 0;
2336
2337 iname_lab = bfd_make_empty_symbol (abfd);
2338
2339 iname_lab->name = head_label;
2340 iname_lab->section = (asection *) &bfd_und_section;
2341 iname_lab->flags = 0;
2342 iname_lab->value = 0;
2343
2344 iname_pp = ptrs + oidx;
2345 if (create_compat_implib)
2346 ptrs[oidx++] = iname;
2347 ptrs[oidx++] = iname2;
2348
2349 iname_lab_pp = ptrs + oidx;
2350 ptrs[oidx++] = iname_lab;
2351
2352 #ifdef DLLTOOL_PPC
2353 /* The symbol referring to the code (.text). */
2354 {
2355 asymbol *function_name;
2356
2357 function_name = bfd_make_empty_symbol(abfd);
2358 function_name->name = make_label ("..", exp->name);
2359 function_name->section = secdata[TEXT].sec;
2360 function_name->flags = BSF_GLOBAL;
2361 function_name->value = 0;
2362
2363 fn_pp = ptrs + oidx;
2364 ptrs[oidx++] = function_name;
2365 }
2366
2367 /* The .toc symbol. */
2368 {
2369 asymbol *toc_symbol;
2370
2371 toc_symbol = bfd_make_empty_symbol (abfd);
2372 toc_symbol->name = make_label (".", "toc");
2373 toc_symbol->section = (asection *)&bfd_und_section;
2374 toc_symbol->flags = BSF_GLOBAL;
2375 toc_symbol->value = 0;
2376
2377 toc_pp = ptrs + oidx;
2378 ptrs[oidx++] = toc_symbol;
2379 }
2380 #endif
2381
2382 ptrs[oidx] = 0;
2383
2384 for (i = 0; i < NSECS; i++)
2385 {
2386 sinfo *si = secdata + i;
2387 asection *sec = si->sec;
2388 arelent *rel;
2389 arelent **rpp;
2390
2391 switch (i)
2392 {
2393 case TEXT:
2394 if (! exp->data)
2395 {
2396 si->size = HOW_JTAB_SIZE;
2397 si->data = xmalloc (HOW_JTAB_SIZE);
2398 memcpy (si->data, HOW_JTAB, HOW_JTAB_SIZE);
2399
2400 /* Add the reloc into idata$5. */
2401 rel = xmalloc (sizeof (arelent));
2402
2403 rpp = xmalloc (sizeof (arelent *) * 2);
2404 rpp[0] = rel;
2405 rpp[1] = 0;
2406
2407 rel->address = HOW_JTAB_ROFF;
2408 rel->addend = 0;
2409
2410 if (machine == MPPC)
2411 {
2412 rel->howto = bfd_reloc_type_lookup (abfd,
2413 BFD_RELOC_16_GOTOFF);
2414 rel->sym_ptr_ptr = iname_pp;
2415 }
2416 else if (machine == MX86)
2417 {
2418 rel->howto = bfd_reloc_type_lookup (abfd,
2419 BFD_RELOC_32_PCREL);
2420 rel->sym_ptr_ptr = iname_pp;
2421 }
2422 else
2423 {
2424 rel->howto = bfd_reloc_type_lookup (abfd, BFD_RELOC_32);
2425 rel->sym_ptr_ptr = secdata[IDATA5].sympp;
2426 }
2427 sec->orelocation = rpp;
2428 sec->reloc_count = 1;
2429 }
2430 break;
2431 case IDATA4:
2432 case IDATA5:
2433 /* An idata$4 or idata$5 is one word long, and has an
2434 rva to idata$6. */
2435
2436 #ifdef DLLTOOL_MX86_64
2437 si->data = xmalloc (8);
2438 si->size = 8;
2439
2440 if (exp->noname)
2441 {
2442 si->data[0] = exp->ordinal ;
2443 si->data[1] = exp->ordinal >> 8;
2444 si->data[2] = exp->ordinal >> 16;
2445 si->data[3] = exp->ordinal >> 24;
2446 si->data[4] = 0;
2447 si->data[5] = 0;
2448 si->data[6] = 0;
2449 si->data[7] = 0x80;
2450 }
2451 else
2452 {
2453 sec->reloc_count = 1;
2454 memset (si->data, 0, si->size);
2455 rel = xmalloc (sizeof (arelent));
2456 rpp = xmalloc (sizeof (arelent *) * 2);
2457 rpp[0] = rel;
2458 rpp[1] = 0;
2459 rel->address = 0;
2460 rel->addend = 0;
2461 rel->howto = bfd_reloc_type_lookup (abfd, BFD_RELOC_RVA);
2462 rel->sym_ptr_ptr = secdata[IDATA6].sympp;
2463 sec->orelocation = rpp;
2464 }
2465 #else
2466 si->data = xmalloc (4);
2467 si->size = 4;
2468
2469 if (exp->noname)
2470 {
2471 si->data[0] = exp->ordinal ;
2472 si->data[1] = exp->ordinal >> 8;
2473 si->data[2] = exp->ordinal >> 16;
2474 si->data[3] = 0x80;
2475 }
2476 else
2477 {
2478 sec->reloc_count = 1;
2479 memset (si->data, 0, si->size);
2480 rel = xmalloc (sizeof (arelent));
2481 rpp = xmalloc (sizeof (arelent *) * 2);
2482 rpp[0] = rel;
2483 rpp[1] = 0;
2484 rel->address = 0;
2485 rel->addend = 0;
2486 rel->howto = bfd_reloc_type_lookup (abfd, BFD_RELOC_RVA);
2487 rel->sym_ptr_ptr = secdata[IDATA6].sympp;
2488 sec->orelocation = rpp;
2489 }
2490 #endif
2491 break;
2492
2493 case IDATA6:
2494 if (!exp->noname)
2495 {
2496 /* This used to add 1 to exp->hint. I don't know
2497 why it did that, and it does not match what I see
2498 in programs compiled with the MS tools. */
2499 int idx = exp->hint;
2500 si->size = strlen (xlate (exp->import_name)) + 3;
2501 si->data = xmalloc (si->size);
2502 si->data[0] = idx & 0xff;
2503 si->data[1] = idx >> 8;
2504 strcpy ((char *) si->data + 2, xlate (exp->import_name));
2505 }
2506 break;
2507 case IDATA7:
2508 si->size = 4;
2509 si->data = xmalloc (4);
2510 memset (si->data, 0, si->size);
2511 rel = xmalloc (sizeof (arelent));
2512 rpp = xmalloc (sizeof (arelent *) * 2);
2513 rpp[0] = rel;
2514 rel->address = 0;
2515 rel->addend = 0;
2516 rel->howto = bfd_reloc_type_lookup (abfd, BFD_RELOC_RVA);
2517 rel->sym_ptr_ptr = iname_lab_pp;
2518 sec->orelocation = rpp;
2519 sec->reloc_count = 1;
2520 break;
2521
2522 #ifdef DLLTOOL_PPC
2523 case PDATA:
2524 {
2525 /* The .pdata section is 5 words long.
2526 Think of it as:
2527 struct
2528 {
2529 bfd_vma BeginAddress, [0x00]
2530 EndAddress, [0x04]
2531 ExceptionHandler, [0x08]
2532 HandlerData, [0x0c]
2533 PrologEndAddress; [0x10]
2534 }; */
2535
2536 /* So this pdata section setups up this as a glue linkage to
2537 a dll routine. There are a number of house keeping things
2538 we need to do:
2539
2540 1. In the name of glue trickery, the ADDR32 relocs for 0,
2541 4, and 0x10 are set to point to the same place:
2542 "..function_name".
2543 2. There is one more reloc needed in the pdata section.
2544 The actual glue instruction to restore the toc on
2545 return is saved as the offset in an IMGLUE reloc.
2546 So we need a total of four relocs for this section.
2547
2548 3. Lastly, the HandlerData field is set to 0x03, to indicate
2549 that this is a glue routine. */
2550 arelent *imglue, *ba_rel, *ea_rel, *pea_rel;
2551
2552 /* Alignment must be set to 2**2 or you get extra stuff. */
2553 bfd_set_section_alignment(abfd, sec, 2);
2554
2555 si->size = 4 * 5;
2556 si->data = xmalloc (si->size);
2557 memset (si->data, 0, si->size);
2558 rpp = xmalloc (sizeof (arelent *) * 5);
2559 rpp[0] = imglue = xmalloc (sizeof (arelent));
2560 rpp[1] = ba_rel = xmalloc (sizeof (arelent));
2561 rpp[2] = ea_rel = xmalloc (sizeof (arelent));
2562 rpp[3] = pea_rel = xmalloc (sizeof (arelent));
2563 rpp[4] = 0;
2564
2565 /* Stick the toc reload instruction in the glue reloc. */
2566 bfd_put_32(abfd, ppc_glue_insn, (char *) &imglue->address);
2567
2568 imglue->addend = 0;
2569 imglue->howto = bfd_reloc_type_lookup (abfd,
2570 BFD_RELOC_32_GOTOFF);
2571 imglue->sym_ptr_ptr = fn_pp;
2572
2573 ba_rel->address = 0;
2574 ba_rel->addend = 0;
2575 ba_rel->howto = bfd_reloc_type_lookup (abfd, BFD_RELOC_32);
2576 ba_rel->sym_ptr_ptr = fn_pp;
2577
2578 bfd_put_32 (abfd, 0x18, si->data + 0x04);
2579 ea_rel->address = 4;
2580 ea_rel->addend = 0;
2581 ea_rel->howto = bfd_reloc_type_lookup (abfd, BFD_RELOC_32);
2582 ea_rel->sym_ptr_ptr = fn_pp;
2583
2584 /* Mark it as glue. */
2585 bfd_put_32 (abfd, 0x03, si->data + 0x0c);
2586
2587 /* Mark the prolog end address. */
2588 bfd_put_32 (abfd, 0x0D, si->data + 0x10);
2589 pea_rel->address = 0x10;
2590 pea_rel->addend = 0;
2591 pea_rel->howto = bfd_reloc_type_lookup (abfd, BFD_RELOC_32);
2592 pea_rel->sym_ptr_ptr = fn_pp;
2593
2594 sec->orelocation = rpp;
2595 sec->reloc_count = 4;
2596 break;
2597 }
2598 case RDATA:
2599 /* Each external function in a PowerPC PE file has a two word
2600 descriptor consisting of:
2601 1. The address of the code.
2602 2. The address of the appropriate .toc
2603 We use relocs to build this. */
2604 si->size = 8;
2605 si->data = xmalloc (8);
2606 memset (si->data, 0, si->size);
2607
2608 rpp = xmalloc (sizeof (arelent *) * 3);
2609 rpp[0] = rel = xmalloc (sizeof (arelent));
2610 rpp[1] = xmalloc (sizeof (arelent));
2611 rpp[2] = 0;
2612
2613 rel->address = 0;
2614 rel->addend = 0;
2615 rel->howto = bfd_reloc_type_lookup (abfd, BFD_RELOC_32);
2616 rel->sym_ptr_ptr = fn_pp;
2617
2618 rel = rpp[1];
2619
2620 rel->address = 4;
2621 rel->addend = 0;
2622 rel->howto = bfd_reloc_type_lookup (abfd, BFD_RELOC_32);
2623 rel->sym_ptr_ptr = toc_pp;
2624
2625 sec->orelocation = rpp;
2626 sec->reloc_count = 2;
2627 break;
2628 #endif /* DLLTOOL_PPC */
2629 }
2630 }
2631
2632 {
2633 bfd_vma vma = 0;
2634 /* Size up all the sections. */
2635 for (i = 0; i < NSECS; i++)
2636 {
2637 sinfo *si = secdata + i;
2638
2639 bfd_set_section_size (abfd, si->sec, si->size);
2640 bfd_set_section_vma (abfd, si->sec, vma);
2641 }
2642 }
2643 /* Write them out. */
2644 for (i = 0; i < NSECS; i++)
2645 {
2646 sinfo *si = secdata + i;
2647
2648 if (i == IDATA5 && no_idata5)
2649 continue;
2650
2651 if (i == IDATA4 && no_idata4)
2652 continue;
2653
2654 bfd_set_section_contents (abfd, si->sec,
2655 si->data, 0,
2656 si->size);
2657 }
2658
2659 bfd_set_symtab (abfd, ptrs, oidx);
2660 bfd_close (abfd);
2661 abfd = bfd_openr (outname, HOW_BFD_READ_TARGET);
2662 return abfd;
2663 }
2664
2665 static bfd *
make_head(void)2666 make_head (void)
2667 {
2668 FILE *f = fopen (TMP_HEAD_S, FOPEN_WT);
2669
2670 if (f == NULL)
2671 {
2672 fatal (_("failed to open temporary head file: %s"), TMP_HEAD_S);
2673 return NULL;
2674 }
2675
2676 fprintf (f, "%s IMAGE_IMPORT_DESCRIPTOR\n", ASM_C);
2677 fprintf (f, "\t.section .idata$2\n");
2678
2679 fprintf(f,"\t%s\t%s\n", ASM_GLOBAL,head_label);
2680
2681 fprintf (f, "%s:\n", head_label);
2682
2683 fprintf (f, "\t%shname%s\t%sPtr to image import by name list\n",
2684 ASM_RVA_BEFORE, ASM_RVA_AFTER, ASM_C);
2685
2686 fprintf (f, "\t%sthis should be the timestamp, but NT sometimes\n", ASM_C);
2687 fprintf (f, "\t%sdoesn't load DLLs when this is set.\n", ASM_C);
2688 fprintf (f, "\t%s\t0\t%s loaded time\n", ASM_LONG, ASM_C);
2689 fprintf (f, "\t%s\t0\t%s Forwarder chain\n", ASM_LONG, ASM_C);
2690 fprintf (f, "\t%s__%s_iname%s\t%s imported dll's name\n",
2691 ASM_RVA_BEFORE,
2692 imp_name_lab,
2693 ASM_RVA_AFTER,
2694 ASM_C);
2695 fprintf (f, "\t%sfthunk%s\t%s pointer to firstthunk\n",
2696 ASM_RVA_BEFORE,
2697 ASM_RVA_AFTER, ASM_C);
2698
2699 fprintf (f, "%sStuff for compatibility\n", ASM_C);
2700
2701 if (!no_idata5)
2702 {
2703 fprintf (f, "\t.section\t.idata$5\n");
2704 #ifdef DLLTOOL_MX86_64
2705 fprintf (f,"\t%s\t0\n\t%s\t0\n", ASM_LONG, ASM_LONG); /* NULL terminating list. */
2706 #else
2707 fprintf (f,"\t%s\t0\n", ASM_LONG); /* NULL terminating list. */
2708 #endif
2709 fprintf (f, "fthunk:\n");
2710 }
2711
2712 if (!no_idata4)
2713 {
2714 fprintf (f, "\t.section\t.idata$4\n");
2715 fprintf (f, "\t%s\t0\n", ASM_LONG);
2716 fprintf (f, "\t.section .idata$4\n");
2717 fprintf (f, "hname:\n");
2718 }
2719
2720 fclose (f);
2721
2722 assemble_file (TMP_HEAD_S, TMP_HEAD_O);
2723
2724 return bfd_openr (TMP_HEAD_O, HOW_BFD_READ_TARGET);
2725 }
2726
2727 static bfd *
make_tail(void)2728 make_tail (void)
2729 {
2730 FILE *f = fopen (TMP_TAIL_S, FOPEN_WT);
2731
2732 if (f == NULL)
2733 {
2734 fatal (_("failed to open temporary tail file: %s"), TMP_TAIL_S);
2735 return NULL;
2736 }
2737
2738 if (!no_idata4)
2739 {
2740 fprintf (f, "\t.section .idata$4\n");
2741 #ifdef DLLTOOL_MX86_64
2742 fprintf (f,"\t%s\t0\n\t%s\t0\n", ASM_LONG, ASM_LONG); /* NULL terminating list. */
2743 #else
2744 fprintf (f,"\t%s\t0\n", ASM_LONG); /* NULL terminating list. */
2745 #endif
2746 }
2747
2748 if (!no_idata5)
2749 {
2750 fprintf (f, "\t.section .idata$5\n");
2751 #ifdef DLLTOOL_MX86_64
2752 fprintf (f,"\t%s\t0\n\t%s\t0\n", ASM_LONG, ASM_LONG); /* NULL terminating list. */
2753 #else
2754 fprintf (f,"\t%s\t0\n", ASM_LONG); /* NULL terminating list. */
2755 #endif
2756 }
2757
2758 #ifdef DLLTOOL_PPC
2759 /* Normally, we need to see a null descriptor built in idata$3 to
2760 act as the terminator for the list. The ideal way, I suppose,
2761 would be to mark this section as a comdat type 2 section, so
2762 only one would appear in the final .exe (if our linker supported
2763 comdat, that is) or cause it to be inserted by something else (say
2764 crt0). */
2765
2766 fprintf (f, "\t.section .idata$3\n");
2767 fprintf (f, "\t%s\t0\n", ASM_LONG);
2768 fprintf (f, "\t%s\t0\n", ASM_LONG);
2769 fprintf (f, "\t%s\t0\n", ASM_LONG);
2770 fprintf (f, "\t%s\t0\n", ASM_LONG);
2771 fprintf (f, "\t%s\t0\n", ASM_LONG);
2772 #endif
2773
2774 #ifdef DLLTOOL_PPC
2775 /* Other PowerPC NT compilers use idata$6 for the dllname, so I
2776 do too. Original, huh? */
2777 fprintf (f, "\t.section .idata$6\n");
2778 #else
2779 fprintf (f, "\t.section .idata$7\n");
2780 #endif
2781
2782 fprintf (f, "\t%s\t__%s_iname\n", ASM_GLOBAL, imp_name_lab);
2783 fprintf (f, "__%s_iname:\t%s\t\"%s\"\n",
2784 imp_name_lab, ASM_TEXT, dll_name);
2785
2786 fclose (f);
2787
2788 assemble_file (TMP_TAIL_S, TMP_TAIL_O);
2789
2790 return bfd_openr (TMP_TAIL_O, HOW_BFD_READ_TARGET);
2791 }
2792
2793 static void
gen_lib_file(void)2794 gen_lib_file (void)
2795 {
2796 int i;
2797 export_type *exp;
2798 bfd *ar_head;
2799 bfd *ar_tail;
2800 bfd *outarch;
2801 bfd * head = 0;
2802
2803 unlink (imp_name);
2804
2805 outarch = bfd_openw (imp_name, HOW_BFD_WRITE_TARGET);
2806
2807 if (!outarch)
2808 /* xgettext:c-format */
2809 fatal (_("Can't open .lib file: %s"), imp_name);
2810
2811 /* xgettext:c-format */
2812 inform (_("Creating library file: %s"), imp_name);
2813
2814 bfd_set_format (outarch, bfd_archive);
2815 outarch->has_armap = 1;
2816
2817 /* Work out a reasonable size of things to put onto one line. */
2818 ar_head = make_head ();
2819 ar_tail = make_tail();
2820
2821 if (ar_head == NULL || ar_tail == NULL)
2822 return;
2823
2824 for (i = 0; (exp = d_exports_lexically[i]); i++)
2825 {
2826 bfd *n;
2827 /* Don't add PRIVATE entries to import lib. */
2828 if (exp->private)
2829 continue;
2830 n = make_one_lib_file (exp, i);
2831 n->archive_next = head;
2832 head = n;
2833 if (ext_prefix_alias)
2834 {
2835 export_type alias_exp;
2836
2837 assert (i < PREFIX_ALIAS_BASE);
2838 alias_exp.name = make_imp_label (ext_prefix_alias, exp->name);
2839 alias_exp.internal_name = exp->internal_name;
2840 alias_exp.import_name = exp->name;
2841 alias_exp.ordinal = exp->ordinal;
2842 alias_exp.constant = exp->constant;
2843 alias_exp.noname = exp->noname;
2844 alias_exp.private = exp->private;
2845 alias_exp.data = exp->data;
2846 alias_exp.hint = exp->hint;
2847 alias_exp.forward = exp->forward;
2848 alias_exp.next = exp->next;
2849 n = make_one_lib_file (&alias_exp, i + PREFIX_ALIAS_BASE);
2850 n->archive_next = head;
2851 head = n;
2852 }
2853 }
2854
2855 /* Now stick them all into the archive. */
2856 ar_head->archive_next = head;
2857 ar_tail->archive_next = ar_head;
2858 head = ar_tail;
2859
2860 if (! bfd_set_archive_head (outarch, head))
2861 bfd_fatal ("bfd_set_archive_head");
2862
2863 if (! bfd_close (outarch))
2864 bfd_fatal (imp_name);
2865
2866 while (head != NULL)
2867 {
2868 bfd *n = head->archive_next;
2869 bfd_close (head);
2870 head = n;
2871 }
2872
2873 /* Delete all the temp files. */
2874 if (dontdeltemps == 0)
2875 {
2876 unlink (TMP_HEAD_O);
2877 unlink (TMP_HEAD_S);
2878 unlink (TMP_TAIL_O);
2879 unlink (TMP_TAIL_S);
2880 }
2881
2882 if (dontdeltemps < 2)
2883 {
2884 char *name;
2885
2886 name = (char *) alloca (strlen (TMP_STUB) + 10);
2887 for (i = 0; (exp = d_exports_lexically[i]); i++)
2888 {
2889 /* Don't delete non-existent stubs for PRIVATE entries. */
2890 if (exp->private)
2891 continue;
2892 sprintf (name, "%s%05d.o", TMP_STUB, i);
2893 if (unlink (name) < 0)
2894 /* xgettext:c-format */
2895 non_fatal (_("cannot delete %s: %s"), name, strerror (errno));
2896 if (ext_prefix_alias)
2897 {
2898 sprintf (name, "%s%05d.o", TMP_STUB, i + PREFIX_ALIAS_BASE);
2899 if (unlink (name) < 0)
2900 /* xgettext:c-format */
2901 non_fatal (_("cannot delete %s: %s"), name, strerror (errno));
2902 }
2903 }
2904 }
2905
2906 inform (_("Created lib file"));
2907 }
2908
2909 /* Run through the information gathered from the .o files and the
2910 .def file and work out the best stuff. */
2911
2912 static int
pfunc(const void * a,const void * b)2913 pfunc (const void *a, const void *b)
2914 {
2915 export_type *ap = *(export_type **) a;
2916 export_type *bp = *(export_type **) b;
2917 if (ap->ordinal == bp->ordinal)
2918 return 0;
2919
2920 /* Unset ordinals go to the bottom. */
2921 if (ap->ordinal == -1)
2922 return 1;
2923 if (bp->ordinal == -1)
2924 return -1;
2925 return (ap->ordinal - bp->ordinal);
2926 }
2927
2928 static int
nfunc(const void * a,const void * b)2929 nfunc (const void *a, const void *b)
2930 {
2931 export_type *ap = *(export_type **) a;
2932 export_type *bp = *(export_type **) b;
2933 const char *an = ap->name;
2934 const char *bn = bp->name;
2935
2936 if (killat)
2937 {
2938 an = (an[0] == '@') ? an + 1 : an;
2939 bn = (bn[0] == '@') ? bn + 1 : bn;
2940 }
2941
2942 return (strcmp (an, bn));
2943 }
2944
2945 static void
remove_null_names(export_type ** ptr)2946 remove_null_names (export_type **ptr)
2947 {
2948 int src;
2949 int dst;
2950
2951 for (dst = src = 0; src < d_nfuncs; src++)
2952 {
2953 if (ptr[src])
2954 {
2955 ptr[dst] = ptr[src];
2956 dst++;
2957 }
2958 }
2959 d_nfuncs = dst;
2960 }
2961
2962 static void
process_duplicates(export_type ** d_export_vec)2963 process_duplicates (export_type **d_export_vec)
2964 {
2965 int more = 1;
2966 int i;
2967
2968 while (more)
2969 {
2970 more = 0;
2971 /* Remove duplicates. */
2972 qsort (d_export_vec, d_nfuncs, sizeof (export_type *), nfunc);
2973
2974 for (i = 0; i < d_nfuncs - 1; i++)
2975 {
2976 if (strcmp (d_export_vec[i]->name,
2977 d_export_vec[i + 1]->name) == 0)
2978 {
2979 export_type *a = d_export_vec[i];
2980 export_type *b = d_export_vec[i + 1];
2981
2982 more = 1;
2983
2984 /* xgettext:c-format */
2985 inform (_("Warning, ignoring duplicate EXPORT %s %d,%d"),
2986 a->name, a->ordinal, b->ordinal);
2987
2988 if (a->ordinal != -1
2989 && b->ordinal != -1)
2990 /* xgettext:c-format */
2991 fatal (_("Error, duplicate EXPORT with oridinals: %s"),
2992 a->name);
2993
2994 /* Merge attributes. */
2995 b->ordinal = a->ordinal > 0 ? a->ordinal : b->ordinal;
2996 b->constant |= a->constant;
2997 b->noname |= a->noname;
2998 b->data |= a->data;
2999 d_export_vec[i] = 0;
3000 }
3001
3002 remove_null_names (d_export_vec);
3003 }
3004 }
3005
3006 /* Count the names. */
3007 for (i = 0; i < d_nfuncs; i++)
3008 if (!d_export_vec[i]->noname)
3009 d_named_nfuncs++;
3010 }
3011
3012 static void
fill_ordinals(export_type ** d_export_vec)3013 fill_ordinals (export_type **d_export_vec)
3014 {
3015 int lowest = -1;
3016 int i;
3017 char *ptr;
3018 int size = 65536;
3019
3020 qsort (d_export_vec, d_nfuncs, sizeof (export_type *), pfunc);
3021
3022 /* Fill in the unset ordinals with ones from our range. */
3023 ptr = (char *) xmalloc (size);
3024
3025 memset (ptr, 0, size);
3026
3027 /* Mark in our large vector all the numbers that are taken. */
3028 for (i = 0; i < d_nfuncs; i++)
3029 {
3030 if (d_export_vec[i]->ordinal != -1)
3031 {
3032 ptr[d_export_vec[i]->ordinal] = 1;
3033
3034 if (lowest == -1 || d_export_vec[i]->ordinal < lowest)
3035 lowest = d_export_vec[i]->ordinal;
3036 }
3037 }
3038
3039 /* Start at 1 for compatibility with MS toolchain. */
3040 if (lowest == -1)
3041 lowest = 1;
3042
3043 /* Now fill in ordinals where the user wants us to choose. */
3044 for (i = 0; i < d_nfuncs; i++)
3045 {
3046 if (d_export_vec[i]->ordinal == -1)
3047 {
3048 int j;
3049
3050 /* First try within or after any user supplied range. */
3051 for (j = lowest; j < size; j++)
3052 if (ptr[j] == 0)
3053 {
3054 ptr[j] = 1;
3055 d_export_vec[i]->ordinal = j;
3056 goto done;
3057 }
3058
3059 /* Then try before the range. */
3060 for (j = lowest; j >0; j--)
3061 if (ptr[j] == 0)
3062 {
3063 ptr[j] = 1;
3064 d_export_vec[i]->ordinal = j;
3065 goto done;
3066 }
3067 done:;
3068 }
3069 }
3070
3071 free (ptr);
3072
3073 /* And resort. */
3074 qsort (d_export_vec, d_nfuncs, sizeof (export_type *), pfunc);
3075
3076 /* Work out the lowest and highest ordinal numbers. */
3077 if (d_nfuncs)
3078 {
3079 if (d_export_vec[0])
3080 d_low_ord = d_export_vec[0]->ordinal;
3081 if (d_export_vec[d_nfuncs-1])
3082 d_high_ord = d_export_vec[d_nfuncs-1]->ordinal;
3083 }
3084 }
3085
3086 static void
mangle_defs(void)3087 mangle_defs (void)
3088 {
3089 /* First work out the minimum ordinal chosen. */
3090 export_type *exp;
3091
3092 int i;
3093 int hint = 0;
3094 export_type **d_export_vec = xmalloc (sizeof (export_type *) * d_nfuncs);
3095
3096 inform (_("Processing definitions"));
3097
3098 for (i = 0, exp = d_exports; exp; i++, exp = exp->next)
3099 d_export_vec[i] = exp;
3100
3101 process_duplicates (d_export_vec);
3102 fill_ordinals (d_export_vec);
3103
3104 /* Put back the list in the new order. */
3105 d_exports = 0;
3106 for (i = d_nfuncs - 1; i >= 0; i--)
3107 {
3108 d_export_vec[i]->next = d_exports;
3109 d_exports = d_export_vec[i];
3110 }
3111
3112 /* Build list in alpha order. */
3113 d_exports_lexically = (export_type **)
3114 xmalloc (sizeof (export_type *) * (d_nfuncs + 1));
3115
3116 for (i = 0, exp = d_exports; exp; i++, exp = exp->next)
3117 d_exports_lexically[i] = exp;
3118
3119 d_exports_lexically[i] = 0;
3120
3121 qsort (d_exports_lexically, i, sizeof (export_type *), nfunc);
3122
3123 /* Fill exp entries with their hint values. */
3124 for (i = 0; i < d_nfuncs; i++)
3125 if (!d_exports_lexically[i]->noname || show_allnames)
3126 d_exports_lexically[i]->hint = hint++;
3127
3128 inform (_("Processed definitions"));
3129 }
3130
3131 static void
usage(FILE * file,int status)3132 usage (FILE *file, int status)
3133 {
3134 /* xgetext:c-format */
3135 fprintf (file, _("Usage %s <option(s)> <object-file(s)>\n"), program_name);
3136 /* xgetext:c-format */
3137 fprintf (file, _(" -m --machine <machine> Create as DLL for <machine>. [default: %s]\n"), mname);
3138 fprintf (file, _(" possible <machine>: arm[_interwork], i386, mcore[-elf]{-le|-be}, ppc, thumb\n"));
3139 fprintf (file, _(" -e --output-exp <outname> Generate an export file.\n"));
3140 fprintf (file, _(" -l --output-lib <outname> Generate an interface library.\n"));
3141 fprintf (file, _(" -a --add-indirect Add dll indirects to export file.\n"));
3142 fprintf (file, _(" -D --dllname <name> Name of input dll to put into interface lib.\n"));
3143 fprintf (file, _(" -d --input-def <deffile> Name of .def file to be read in.\n"));
3144 fprintf (file, _(" -z --output-def <deffile> Name of .def file to be created.\n"));
3145 fprintf (file, _(" --export-all-symbols Export all symbols to .def\n"));
3146 fprintf (file, _(" --no-export-all-symbols Only export listed symbols\n"));
3147 fprintf (file, _(" --exclude-symbols <list> Don't export <list>\n"));
3148 fprintf (file, _(" --no-default-excludes Clear default exclude symbols\n"));
3149 fprintf (file, _(" -b --base-file <basefile> Read linker generated base file.\n"));
3150 fprintf (file, _(" -x --no-idata4 Don't generate idata$4 section.\n"));
3151 fprintf (file, _(" -c --no-idata5 Don't generate idata$5 section.\n"));
3152 fprintf (file, _(" -U --add-underscore Add underscores to all symbols in interface library.\n"));
3153 fprintf (file, _(" --add-stdcall-underscore Add underscores to stdcall symbols in interface library.\n"));
3154 fprintf (file, _(" -k --kill-at Kill @<n> from exported names.\n"));
3155 fprintf (file, _(" -A --add-stdcall-alias Add aliases without @<n>.\n"));
3156 fprintf (file, _(" -p --ext-prefix-alias <prefix> Add aliases with <prefix>.\n"));
3157 fprintf (file, _(" -S --as <name> Use <name> for assembler.\n"));
3158 fprintf (file, _(" -f --as-flags <flags> Pass <flags> to the assembler.\n"));
3159 fprintf (file, _(" -C --compat-implib Create backward compatible import library.\n"));
3160 fprintf (file, _(" -n --no-delete Keep temp files (repeat for extra preservation).\n"));
3161 fprintf (file, _(" -t --temp-prefix <prefix> Use <prefix> to construct temp file names.\n"));
3162 fprintf (file, _(" -v --verbose Be verbose.\n"));
3163 fprintf (file, _(" -V --version Display the program version.\n"));
3164 fprintf (file, _(" -h --help Display this information.\n"));
3165 fprintf (file, _(" @<file> Read options from <file>.\n"));
3166 #ifdef DLLTOOL_MCORE_ELF
3167 fprintf (file, _(" -M --mcore-elf <outname> Process mcore-elf object files into <outname>.\n"));
3168 fprintf (file, _(" -L --linker <name> Use <name> as the linker.\n"));
3169 fprintf (file, _(" -F --linker-flags <flags> Pass <flags> to the linker.\n"));
3170 #endif
3171 if (REPORT_BUGS_TO[0] && status == 0)
3172 fprintf (file, _("Report bugs to %s\n"), REPORT_BUGS_TO);
3173 exit (status);
3174 }
3175
3176 #define OPTION_EXPORT_ALL_SYMS 150
3177 #define OPTION_NO_EXPORT_ALL_SYMS (OPTION_EXPORT_ALL_SYMS + 1)
3178 #define OPTION_EXCLUDE_SYMS (OPTION_NO_EXPORT_ALL_SYMS + 1)
3179 #define OPTION_NO_DEFAULT_EXCLUDES (OPTION_EXCLUDE_SYMS + 1)
3180 #define OPTION_ADD_STDCALL_UNDERSCORE (OPTION_NO_DEFAULT_EXCLUDES + 1)
3181
3182 static const struct option long_options[] =
3183 {
3184 {"no-delete", no_argument, NULL, 'n'},
3185 {"dllname", required_argument, NULL, 'D'},
3186 {"no-idata4", no_argument, NULL, 'x'},
3187 {"no-idata5", no_argument, NULL, 'c'},
3188 {"output-exp", required_argument, NULL, 'e'},
3189 {"output-def", required_argument, NULL, 'z'},
3190 {"export-all-symbols", no_argument, NULL, OPTION_EXPORT_ALL_SYMS},
3191 {"no-export-all-symbols", no_argument, NULL, OPTION_NO_EXPORT_ALL_SYMS},
3192 {"exclude-symbols", required_argument, NULL, OPTION_EXCLUDE_SYMS},
3193 {"no-default-excludes", no_argument, NULL, OPTION_NO_DEFAULT_EXCLUDES},
3194 {"output-lib", required_argument, NULL, 'l'},
3195 {"def", required_argument, NULL, 'd'}, /* for compatibility with older versions */
3196 {"input-def", required_argument, NULL, 'd'},
3197 {"add-underscore", no_argument, NULL, 'U'},
3198 {"add-stdcall-underscore", no_argument, NULL, OPTION_ADD_STDCALL_UNDERSCORE},
3199 {"kill-at", no_argument, NULL, 'k'},
3200 {"add-stdcall-alias", no_argument, NULL, 'A'},
3201 {"ext-prefix-alias", required_argument, NULL, 'p'},
3202 {"verbose", no_argument, NULL, 'v'},
3203 {"version", no_argument, NULL, 'V'},
3204 {"help", no_argument, NULL, 'h'},
3205 {"machine", required_argument, NULL, 'm'},
3206 {"add-indirect", no_argument, NULL, 'a'},
3207 {"base-file", required_argument, NULL, 'b'},
3208 {"as", required_argument, NULL, 'S'},
3209 {"as-flags", required_argument, NULL, 'f'},
3210 {"mcore-elf", required_argument, NULL, 'M'},
3211 {"compat-implib", no_argument, NULL, 'C'},
3212 {"temp-prefix", required_argument, NULL, 't'},
3213 {NULL,0,NULL,0}
3214 };
3215
3216 int main (int, char **);
3217
3218 int
main(int ac,char ** av)3219 main (int ac, char **av)
3220 {
3221 int c;
3222 int i;
3223 char *firstarg = 0;
3224 program_name = av[0];
3225 oav = av;
3226
3227 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
3228 setlocale (LC_MESSAGES, "");
3229 #endif
3230 #if defined (HAVE_SETLOCALE)
3231 setlocale (LC_CTYPE, "");
3232 #endif
3233 bindtextdomain (PACKAGE, LOCALEDIR);
3234 textdomain (PACKAGE);
3235
3236 expandargv (&ac, &av);
3237
3238 while ((c = getopt_long (ac, av,
3239 #ifdef DLLTOOL_MCORE_ELF
3240 "m:e:l:aD:d:z:b:xp:cCuUkAS:f:nvVHhM:L:F:",
3241 #else
3242 "m:e:l:aD:d:z:b:xp:cCuUkAS:f:nvVHh",
3243 #endif
3244 long_options, 0))
3245 != EOF)
3246 {
3247 switch (c)
3248 {
3249 case OPTION_EXPORT_ALL_SYMS:
3250 export_all_symbols = TRUE;
3251 break;
3252 case OPTION_NO_EXPORT_ALL_SYMS:
3253 export_all_symbols = FALSE;
3254 break;
3255 case OPTION_EXCLUDE_SYMS:
3256 add_excludes (optarg);
3257 break;
3258 case OPTION_NO_DEFAULT_EXCLUDES:
3259 do_default_excludes = FALSE;
3260 break;
3261 case OPTION_ADD_STDCALL_UNDERSCORE:
3262 add_stdcall_underscore = 1;
3263 break;
3264 case 'x':
3265 no_idata4 = 1;
3266 break;
3267 case 'c':
3268 no_idata5 = 1;
3269 break;
3270 case 'S':
3271 as_name = optarg;
3272 break;
3273 case 't':
3274 tmp_prefix = optarg;
3275 break;
3276 case 'f':
3277 as_flags = optarg;
3278 break;
3279
3280 /* Ignored for compatibility. */
3281 case 'u':
3282 break;
3283 case 'a':
3284 add_indirect = 1;
3285 break;
3286 case 'z':
3287 output_def = fopen (optarg, FOPEN_WT);
3288 break;
3289 case 'D':
3290 dll_name = (char*) lbasename (optarg);
3291 if (dll_name != optarg)
3292 non_fatal (_("Path components stripped from dllname, '%s'."),
3293 optarg);
3294 break;
3295 case 'l':
3296 imp_name = optarg;
3297 break;
3298 case 'e':
3299 exp_name = optarg;
3300 break;
3301 case 'H':
3302 case 'h':
3303 usage (stdout, 0);
3304 break;
3305 case 'm':
3306 mname = optarg;
3307 break;
3308 case 'v':
3309 verbose = 1;
3310 break;
3311 case 'V':
3312 print_version (program_name);
3313 break;
3314 case 'U':
3315 add_underscore = 1;
3316 break;
3317 case 'k':
3318 killat = 1;
3319 break;
3320 case 'A':
3321 add_stdcall_alias = 1;
3322 break;
3323 case 'p':
3324 ext_prefix_alias = optarg;
3325 break;
3326 case 'd':
3327 def_file = optarg;
3328 break;
3329 case 'n':
3330 dontdeltemps++;
3331 break;
3332 case 'b':
3333 base_file = fopen (optarg, FOPEN_RB);
3334
3335 if (!base_file)
3336 /* xgettext:c-format */
3337 fatal (_("Unable to open base-file: %s"), optarg);
3338
3339 break;
3340 #ifdef DLLTOOL_MCORE_ELF
3341 case 'M':
3342 mcore_elf_out_file = optarg;
3343 break;
3344 case 'L':
3345 mcore_elf_linker = optarg;
3346 break;
3347 case 'F':
3348 mcore_elf_linker_flags = optarg;
3349 break;
3350 #endif
3351 case 'C':
3352 create_compat_implib = 1;
3353 break;
3354 default:
3355 usage (stderr, 1);
3356 break;
3357 }
3358 }
3359
3360 if (!tmp_prefix)
3361 tmp_prefix = prefix_encode ("d", getpid ());
3362
3363 for (i = 0; mtable[i].type; i++)
3364 if (strcmp (mtable[i].type, mname) == 0)
3365 break;
3366
3367 if (!mtable[i].type)
3368 /* xgettext:c-format */
3369 fatal (_("Machine '%s' not supported"), mname);
3370
3371 machine = i;
3372
3373 if (!dll_name && exp_name)
3374 {
3375 /* If we are inferring dll_name from exp_name,
3376 strip off any path components, without emitting
3377 a warning. */
3378 const char* exp_basename = lbasename (exp_name);
3379 const int len = strlen (exp_basename) + 5;
3380 dll_name = xmalloc (len);
3381 strcpy (dll_name, exp_basename);
3382 strcat (dll_name, ".dll");
3383 }
3384
3385 if (as_name == NULL)
3386 as_name = deduce_name ("as");
3387
3388 /* Don't use the default exclude list if we're reading only the
3389 symbols in the .drectve section. The default excludes are meant
3390 to avoid exporting DLL entry point and Cygwin32 impure_ptr. */
3391 if (! export_all_symbols)
3392 do_default_excludes = FALSE;
3393
3394 if (do_default_excludes)
3395 set_default_excludes ();
3396
3397 if (def_file)
3398 process_def_file (def_file);
3399
3400 while (optind < ac)
3401 {
3402 if (!firstarg)
3403 firstarg = av[optind];
3404 scan_obj_file (av[optind]);
3405 optind++;
3406 }
3407
3408 mangle_defs ();
3409
3410 if (exp_name)
3411 gen_exp_file ();
3412
3413 if (imp_name)
3414 {
3415 /* Make imp_name safe for use as a label. */
3416 char *p;
3417
3418 imp_name_lab = xstrdup (imp_name);
3419 for (p = imp_name_lab; *p; p++)
3420 {
3421 if (!ISALNUM (*p))
3422 *p = '_';
3423 }
3424 head_label = make_label("_head_", imp_name_lab);
3425 gen_lib_file ();
3426 }
3427
3428 if (output_def)
3429 gen_def_file ();
3430
3431 #ifdef DLLTOOL_MCORE_ELF
3432 if (mcore_elf_out_file)
3433 mcore_elf_gen_out_file ();
3434 #endif
3435
3436 return 0;
3437 }
3438
3439 /* Look for the program formed by concatenating PROG_NAME and the
3440 string running from PREFIX to END_PREFIX. If the concatenated
3441 string contains a '/', try appending EXECUTABLE_SUFFIX if it is
3442 appropriate. */
3443
3444 static char *
look_for_prog(const char * prog_name,const char * prefix,int end_prefix)3445 look_for_prog (const char *prog_name, const char *prefix, int end_prefix)
3446 {
3447 struct stat s;
3448 char *cmd;
3449
3450 cmd = xmalloc (strlen (prefix)
3451 + strlen (prog_name)
3452 #ifdef HAVE_EXECUTABLE_SUFFIX
3453 + strlen (EXECUTABLE_SUFFIX)
3454 #endif
3455 + 10);
3456 strcpy (cmd, prefix);
3457
3458 sprintf (cmd + end_prefix, "%s", prog_name);
3459
3460 if (strchr (cmd, '/') != NULL)
3461 {
3462 int found;
3463
3464 found = (stat (cmd, &s) == 0
3465 #ifdef HAVE_EXECUTABLE_SUFFIX
3466 || stat (strcat (cmd, EXECUTABLE_SUFFIX), &s) == 0
3467 #endif
3468 );
3469
3470 if (! found)
3471 {
3472 /* xgettext:c-format */
3473 inform (_("Tried file: %s"), cmd);
3474 free (cmd);
3475 return NULL;
3476 }
3477 }
3478
3479 /* xgettext:c-format */
3480 inform (_("Using file: %s"), cmd);
3481
3482 return cmd;
3483 }
3484
3485 /* Deduce the name of the program we are want to invoke.
3486 PROG_NAME is the basic name of the program we want to run,
3487 eg "as" or "ld". The catch is that we might want actually
3488 run "i386-pe-as" or "ppc-pe-ld".
3489
3490 If argv[0] contains the full path, then try to find the program
3491 in the same place, with and then without a target-like prefix.
3492
3493 Given, argv[0] = /usr/local/bin/i586-cygwin32-dlltool,
3494 deduce_name("as") uses the following search order:
3495
3496 /usr/local/bin/i586-cygwin32-as
3497 /usr/local/bin/as
3498 as
3499
3500 If there's an EXECUTABLE_SUFFIX, it'll use that as well; for each
3501 name, it'll try without and then with EXECUTABLE_SUFFIX.
3502
3503 Given, argv[0] = i586-cygwin32-dlltool, it will not even try "as"
3504 as the fallback, but rather return i586-cygwin32-as.
3505
3506 Oh, and given, argv[0] = dlltool, it'll return "as".
3507
3508 Returns a dynamically allocated string. */
3509
3510 static char *
deduce_name(const char * prog_name)3511 deduce_name (const char *prog_name)
3512 {
3513 char *cmd;
3514 char *dash, *slash, *cp;
3515
3516 dash = NULL;
3517 slash = NULL;
3518 for (cp = program_name; *cp != '\0'; ++cp)
3519 {
3520 if (*cp == '-')
3521 dash = cp;
3522 if (
3523 #if defined(__DJGPP__) || defined (__CYGWIN__) || defined(__WIN32__)
3524 *cp == ':' || *cp == '\\' ||
3525 #endif
3526 *cp == '/')
3527 {
3528 slash = cp;
3529 dash = NULL;
3530 }
3531 }
3532
3533 cmd = NULL;
3534
3535 if (dash != NULL)
3536 {
3537 /* First, try looking for a prefixed PROG_NAME in the
3538 PROGRAM_NAME directory, with the same prefix as PROGRAM_NAME. */
3539 cmd = look_for_prog (prog_name, program_name, dash - program_name + 1);
3540 }
3541
3542 if (slash != NULL && cmd == NULL)
3543 {
3544 /* Next, try looking for a PROG_NAME in the same directory as
3545 that of this program. */
3546 cmd = look_for_prog (prog_name, program_name, slash - program_name + 1);
3547 }
3548
3549 if (cmd == NULL)
3550 {
3551 /* Just return PROG_NAME as is. */
3552 cmd = xstrdup (prog_name);
3553 }
3554
3555 return cmd;
3556 }
3557
3558 #ifdef DLLTOOL_MCORE_ELF
3559 typedef struct fname_cache
3560 {
3561 char * filename;
3562 struct fname_cache * next;
3563 }
3564 fname_cache;
3565
3566 static fname_cache fnames;
3567
3568 static void
mcore_elf_cache_filename(char * filename)3569 mcore_elf_cache_filename (char * filename)
3570 {
3571 fname_cache * ptr;
3572
3573 ptr = & fnames;
3574
3575 while (ptr->next != NULL)
3576 ptr = ptr->next;
3577
3578 ptr->filename = filename;
3579 ptr->next = (fname_cache *) malloc (sizeof (fname_cache));
3580 if (ptr->next != NULL)
3581 ptr->next->next = NULL;
3582 }
3583
3584 #define MCORE_ELF_TMP_OBJ "mcoreelf.o"
3585 #define MCORE_ELF_TMP_EXP "mcoreelf.exp"
3586 #define MCORE_ELF_TMP_LIB "mcoreelf.lib"
3587
3588 static void
mcore_elf_gen_out_file(void)3589 mcore_elf_gen_out_file (void)
3590 {
3591 fname_cache * ptr;
3592 dyn_string_t ds;
3593
3594 /* Step one. Run 'ld -r' on the input object files in order to resolve
3595 any internal references and to generate a single .exports section. */
3596 ptr = & fnames;
3597
3598 ds = dyn_string_new (100);
3599 dyn_string_append_cstr (ds, "-r ");
3600
3601 if (mcore_elf_linker_flags != NULL)
3602 dyn_string_append_cstr (ds, mcore_elf_linker_flags);
3603
3604 while (ptr->next != NULL)
3605 {
3606 dyn_string_append_cstr (ds, ptr->filename);
3607 dyn_string_append_cstr (ds, " ");
3608
3609 ptr = ptr->next;
3610 }
3611
3612 dyn_string_append_cstr (ds, "-o ");
3613 dyn_string_append_cstr (ds, MCORE_ELF_TMP_OBJ);
3614
3615 if (mcore_elf_linker == NULL)
3616 mcore_elf_linker = deduce_name ("ld");
3617
3618 run (mcore_elf_linker, ds->s);
3619
3620 dyn_string_delete (ds);
3621
3622 /* Step two. Create a .exp file and a .lib file from the temporary file.
3623 Do this by recursively invoking dlltool... */
3624 ds = dyn_string_new (100);
3625
3626 dyn_string_append_cstr (ds, "-S ");
3627 dyn_string_append_cstr (ds, as_name);
3628
3629 dyn_string_append_cstr (ds, " -e ");
3630 dyn_string_append_cstr (ds, MCORE_ELF_TMP_EXP);
3631 dyn_string_append_cstr (ds, " -l ");
3632 dyn_string_append_cstr (ds, MCORE_ELF_TMP_LIB);
3633 dyn_string_append_cstr (ds, " " );
3634 dyn_string_append_cstr (ds, MCORE_ELF_TMP_OBJ);
3635
3636 if (verbose)
3637 dyn_string_append_cstr (ds, " -v");
3638
3639 if (dontdeltemps)
3640 {
3641 dyn_string_append_cstr (ds, " -n");
3642
3643 if (dontdeltemps > 1)
3644 dyn_string_append_cstr (ds, " -n");
3645 }
3646
3647 /* XXX - FIME: ought to check/copy other command line options as well. */
3648 run (program_name, ds->s);
3649
3650 dyn_string_delete (ds);
3651
3652 /* Step four. Feed the .exp and object files to ld -shared to create the dll. */
3653 ds = dyn_string_new (100);
3654
3655 dyn_string_append_cstr (ds, "-shared ");
3656
3657 if (mcore_elf_linker_flags)
3658 dyn_string_append_cstr (ds, mcore_elf_linker_flags);
3659
3660 dyn_string_append_cstr (ds, " ");
3661 dyn_string_append_cstr (ds, MCORE_ELF_TMP_EXP);
3662 dyn_string_append_cstr (ds, " ");
3663 dyn_string_append_cstr (ds, MCORE_ELF_TMP_OBJ);
3664 dyn_string_append_cstr (ds, " -o ");
3665 dyn_string_append_cstr (ds, mcore_elf_out_file);
3666
3667 run (mcore_elf_linker, ds->s);
3668
3669 dyn_string_delete (ds);
3670
3671 if (dontdeltemps == 0)
3672 unlink (MCORE_ELF_TMP_EXP);
3673
3674 if (dontdeltemps < 2)
3675 unlink (MCORE_ELF_TMP_OBJ);
3676 }
3677 #endif /* DLLTOOL_MCORE_ELF */
3678