1 /* Support for the generic parts of PE/PEI, for BFD.
2 Copyright 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
3 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
4 Free Software Foundation, Inc.
5 Written by Cygnus Solutions.
7 This file is part of BFD, the Binary File Descriptor library.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
22 MA 02110-1301, USA. */
25 /* Most of this hacked by Steve Chamberlain,
28 PE/PEI rearrangement (and code added): Donn Terry
29 Softway Systems, Inc. */
31 /* Hey look, some documentation [and in a place you expect to find it]!
33 The main reference for the pei format is "Microsoft Portable Executable
34 and Common Object File Format Specification 4.1". Get it if you need to
35 do some serious hacking on this code.
38 "Peering Inside the PE: A Tour of the Win32 Portable Executable
39 File Format", MSJ 1994, Volume 9.
41 The *sole* difference between the pe format and the pei format is that the
42 latter has an MSDOS 2.0 .exe header on the front that prints the message
43 "This app must be run under Windows." (or some such).
44 (FIXME: Whether that statement is *really* true or not is unknown.
45 Are there more subtle differences between pe and pei formats?
46 For now assume there aren't. If you find one, then for God sakes
49 The Microsoft docs use the word "image" instead of "executable" because
50 the former can also refer to a DLL (shared library). Confusion can arise
51 because the `i' in `pei' also refers to "image". The `pe' format can
52 also create images (i.e. executables), it's just that to run on a win32
53 system you need to use the pei format.
55 FIXME: Please add more docs here so the next poor fool that has to hack
56 on this code has a chance of getting something accomplished without
57 wasting too much time. */
61 static bfd_boolean (*pe_saved_coff_bfd_print_private_bfd_data) (bfd *, void *) =
62 #ifndef coff_bfd_print_private_bfd_data
65 coff_bfd_print_private_bfd_data;
66 #undef coff_bfd_print_private_bfd_data
69 static bfd_boolean pe_print_private_bfd_data (bfd *, void *);
70 #define coff_bfd_print_private_bfd_data pe_print_private_bfd_data
72 static bfd_boolean (*pe_saved_coff_bfd_copy_private_bfd_data) (bfd *, bfd *) =
73 #ifndef coff_bfd_copy_private_bfd_data
76 coff_bfd_copy_private_bfd_data;
77 #undef coff_bfd_copy_private_bfd_data
80 static bfd_boolean pe_bfd_copy_private_bfd_data (bfd *, bfd *);
81 #define coff_bfd_copy_private_bfd_data pe_bfd_copy_private_bfd_data
83 #define coff_mkobject pe_mkobject
84 #define coff_mkobject_hook pe_mkobject_hook
86 #ifdef COFF_IMAGE_WITH_PE
87 /* This structure contains static variables used by the ILF code. */
88 typedef asection * asection_ptr;
94 struct bfd_in_memory * bim;
98 unsigned int relcount;
100 coff_symbol_type * sym_cache;
101 coff_symbol_type * sym_ptr;
102 unsigned int sym_index;
104 unsigned int * sym_table;
105 unsigned int * table_ptr;
107 combined_entry_type * native_syms;
108 combined_entry_type * native_ptr;
110 coff_symbol_type ** sym_ptr_table;
111 coff_symbol_type ** sym_ptr_ptr;
113 unsigned int sec_index;
117 char * end_string_ptr;
122 struct internal_reloc * int_reltab;
125 #endif /* COFF_IMAGE_WITH_PE */
127 const bfd_target *coff_real_object_p
128 (bfd *, unsigned, struct internal_filehdr *, struct internal_aouthdr *);
130 #ifndef NO_COFF_RELOCS
132 coff_swap_reloc_in (bfd * abfd, void * src, void * dst)
134 RELOC *reloc_src = (RELOC *) src;
135 struct internal_reloc *reloc_dst = (struct internal_reloc *) dst;
137 reloc_dst->r_vaddr = H_GET_32 (abfd, reloc_src->r_vaddr);
138 reloc_dst->r_symndx = H_GET_S32 (abfd, reloc_src->r_symndx);
139 reloc_dst->r_type = H_GET_16 (abfd, reloc_src->r_type);
140 #ifdef SWAP_IN_RELOC_OFFSET
141 reloc_dst->r_offset = SWAP_IN_RELOC_OFFSET (abfd, reloc_src->r_offset);
146 coff_swap_reloc_out (bfd * abfd, void * src, void * dst)
148 struct internal_reloc *reloc_src = (struct internal_reloc *) src;
149 struct external_reloc *reloc_dst = (struct external_reloc *) dst;
151 H_PUT_32 (abfd, reloc_src->r_vaddr, reloc_dst->r_vaddr);
152 H_PUT_32 (abfd, reloc_src->r_symndx, reloc_dst->r_symndx);
153 H_PUT_16 (abfd, reloc_src->r_type, reloc_dst->r_type);
155 #ifdef SWAP_OUT_RELOC_OFFSET
156 SWAP_OUT_RELOC_OFFSET (abfd, reloc_src->r_offset, reloc_dst->r_offset);
158 #ifdef SWAP_OUT_RELOC_EXTRA
159 SWAP_OUT_RELOC_EXTRA (abfd, reloc_src, reloc_dst);
163 #endif /* not NO_COFF_RELOCS */
165 #ifdef COFF_IMAGE_WITH_PE
167 #define FILHDR struct external_PEI_IMAGE_hdr
171 coff_swap_filehdr_in (bfd * abfd, void * src, void * dst)
173 FILHDR *filehdr_src = (FILHDR *) src;
174 struct internal_filehdr *filehdr_dst = (struct internal_filehdr *) dst;
176 filehdr_dst->f_magic = H_GET_16 (abfd, filehdr_src->f_magic);
177 filehdr_dst->f_nscns = H_GET_16 (abfd, filehdr_src->f_nscns);
178 filehdr_dst->f_timdat = H_GET_32 (abfd, filehdr_src->f_timdat);
179 filehdr_dst->f_nsyms = H_GET_32 (abfd, filehdr_src->f_nsyms);
180 filehdr_dst->f_flags = H_GET_16 (abfd, filehdr_src->f_flags);
181 filehdr_dst->f_symptr = H_GET_32 (abfd, filehdr_src->f_symptr);
183 /* Other people's tools sometimes generate headers with an nsyms but
185 if (filehdr_dst->f_nsyms != 0 && filehdr_dst->f_symptr == 0)
187 filehdr_dst->f_nsyms = 0;
188 filehdr_dst->f_flags |= F_LSYMS;
191 filehdr_dst->f_opthdr = H_GET_16 (abfd, filehdr_src-> f_opthdr);
194 #ifdef COFF_IMAGE_WITH_PE
195 # define coff_swap_filehdr_out _bfd_XXi_only_swap_filehdr_out
196 #elif defined COFF_WITH_pex64
197 # define coff_swap_filehdr_out _bfd_pex64_only_swap_filehdr_out
198 #elif defined COFF_WITH_pep
199 # define coff_swap_filehdr_out _bfd_pep_only_swap_filehdr_out
201 # define coff_swap_filehdr_out _bfd_pe_only_swap_filehdr_out
205 coff_swap_scnhdr_in (bfd * abfd, void * ext, void * in)
207 SCNHDR *scnhdr_ext = (SCNHDR *) ext;
208 struct internal_scnhdr *scnhdr_int = (struct internal_scnhdr *) in;
210 memcpy (scnhdr_int->s_name, scnhdr_ext->s_name, sizeof (scnhdr_int->s_name));
212 scnhdr_int->s_vaddr = GET_SCNHDR_VADDR (abfd, scnhdr_ext->s_vaddr);
213 scnhdr_int->s_paddr = GET_SCNHDR_PADDR (abfd, scnhdr_ext->s_paddr);
214 scnhdr_int->s_size = GET_SCNHDR_SIZE (abfd, scnhdr_ext->s_size);
215 scnhdr_int->s_scnptr = GET_SCNHDR_SCNPTR (abfd, scnhdr_ext->s_scnptr);
216 scnhdr_int->s_relptr = GET_SCNHDR_RELPTR (abfd, scnhdr_ext->s_relptr);
217 scnhdr_int->s_lnnoptr = GET_SCNHDR_LNNOPTR (abfd, scnhdr_ext->s_lnnoptr);
218 scnhdr_int->s_flags = H_GET_32 (abfd, scnhdr_ext->s_flags);
220 /* MS handles overflow of line numbers by carrying into the reloc
221 field (it appears). Since it's supposed to be zero for PE
222 *IMAGE* format, that's safe. This is still a bit iffy. */
223 #ifdef COFF_IMAGE_WITH_PE
224 scnhdr_int->s_nlnno = (H_GET_16 (abfd, scnhdr_ext->s_nlnno)
225 + (H_GET_16 (abfd, scnhdr_ext->s_nreloc) << 16));
226 scnhdr_int->s_nreloc = 0;
228 scnhdr_int->s_nreloc = H_GET_16 (abfd, scnhdr_ext->s_nreloc);
229 scnhdr_int->s_nlnno = H_GET_16 (abfd, scnhdr_ext->s_nlnno);
232 if (scnhdr_int->s_vaddr != 0)
234 scnhdr_int->s_vaddr += pe_data (abfd)->pe_opthdr.ImageBase;
235 /* Do not cut upper 32-bits for 64-bit vma. */
236 #ifndef COFF_WITH_pex64
237 scnhdr_int->s_vaddr &= 0xffffffff;
241 #ifndef COFF_NO_HACK_SCNHDR_SIZE
242 /* If this section holds uninitialized data and is from an object file
243 or from an executable image that has not initialized the field,
244 or if the image is an executable file and the physical size is padded,
245 use the virtual size (stored in s_paddr) instead. */
246 if (scnhdr_int->s_paddr > 0
247 && (((scnhdr_int->s_flags & IMAGE_SCN_CNT_UNINITIALIZED_DATA) != 0
248 && (! bfd_pei_p (abfd) || scnhdr_int->s_size == 0))
249 || (bfd_pei_p (abfd) && (scnhdr_int->s_size > scnhdr_int->s_paddr))))
250 /* This code used to set scnhdr_int->s_paddr to 0. However,
251 coff_set_alignment_hook stores s_paddr in virt_size, which
252 only works if it correctly holds the virtual size of the
254 scnhdr_int->s_size = scnhdr_int->s_paddr;
259 pe_mkobject (bfd * abfd)
262 bfd_size_type amt = sizeof (pe_data_type);
264 abfd->tdata.pe_obj_data = (struct pe_tdata *) bfd_zalloc (abfd, amt);
266 if (abfd->tdata.pe_obj_data == 0)
273 /* in_reloc_p is architecture dependent. */
274 pe->in_reloc_p = in_reloc_p;
279 /* Create the COFF backend specific information. */
282 pe_mkobject_hook (bfd * abfd,
284 void * aouthdr ATTRIBUTE_UNUSED)
286 struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
289 if (! pe_mkobject (abfd))
293 pe->coff.sym_filepos = internal_f->f_symptr;
294 /* These members communicate important constants about the symbol
295 table to GDB's symbol-reading code. These `constants'
296 unfortunately vary among coff implementations... */
297 pe->coff.local_n_btmask = N_BTMASK;
298 pe->coff.local_n_btshft = N_BTSHFT;
299 pe->coff.local_n_tmask = N_TMASK;
300 pe->coff.local_n_tshift = N_TSHIFT;
301 pe->coff.local_symesz = SYMESZ;
302 pe->coff.local_auxesz = AUXESZ;
303 pe->coff.local_linesz = LINESZ;
305 pe->coff.timestamp = internal_f->f_timdat;
307 obj_raw_syment_count (abfd) =
308 obj_conv_table_size (abfd) =
311 pe->real_flags = internal_f->f_flags;
313 if ((internal_f->f_flags & F_DLL) != 0)
316 if ((internal_f->f_flags & IMAGE_FILE_DEBUG_STRIPPED) == 0)
317 abfd->flags |= HAS_DEBUG;
319 #ifdef COFF_IMAGE_WITH_PE
321 pe->pe_opthdr = ((struct internal_aouthdr *) aouthdr)->pe;
325 if (! _bfd_coff_arm_set_private_flags (abfd, internal_f->f_flags))
326 coff_data (abfd) ->flags = 0;
333 pe_print_private_bfd_data (bfd *abfd, void * vfile)
335 FILE *file = (FILE *) vfile;
337 if (!_bfd_XX_print_private_bfd_data_common (abfd, vfile))
340 if (pe_saved_coff_bfd_print_private_bfd_data == NULL)
345 return pe_saved_coff_bfd_print_private_bfd_data (abfd, vfile);
348 /* Copy any private info we understand from the input bfd
349 to the output bfd. */
352 pe_bfd_copy_private_bfd_data (bfd *ibfd, bfd *obfd)
354 /* PR binutils/716: Copy the large address aware flag.
355 XXX: Should we be copying other flags or other fields in the pe_data()
357 if (pe_data (obfd) != NULL
358 && pe_data (ibfd) != NULL
359 && pe_data (ibfd)->real_flags & IMAGE_FILE_LARGE_ADDRESS_AWARE)
360 pe_data (obfd)->real_flags |= IMAGE_FILE_LARGE_ADDRESS_AWARE;
362 if (!_bfd_XX_bfd_copy_private_bfd_data_common (ibfd, obfd))
365 if (pe_saved_coff_bfd_copy_private_bfd_data)
366 return pe_saved_coff_bfd_copy_private_bfd_data (ibfd, obfd);
371 #define coff_bfd_copy_private_section_data \
372 _bfd_XX_bfd_copy_private_section_data
374 #define coff_get_symbol_info _bfd_XX_get_symbol_info
376 #ifdef COFF_IMAGE_WITH_PE
378 /* Code to handle Microsoft's Image Library Format.
379 Also known as LINK6 format.
380 Documentation about this format can be found at:
382 http://msdn.microsoft.com/library/specs/pecoff_section8.htm */
384 /* The following constants specify the sizes of the various data
385 structures that we have to create in order to build a bfd describing
386 an ILF object file. The final "+ 1" in the definitions of SIZEOF_IDATA6
387 and SIZEOF_IDATA7 below is to allow for the possibility that we might
388 need a padding byte in order to ensure 16 bit alignment for the section's
391 The value for SIZEOF_ILF_STRINGS is computed as follows:
393 There will be NUM_ILF_SECTIONS section symbols. Allow 9 characters
394 per symbol for their names (longest section name is .idata$x).
396 There will be two symbols for the imported value, one the symbol name
397 and one with _imp__ prefixed. Allowing for the terminating nul's this
398 is strlen (symbol_name) * 2 + 8 + 21 + strlen (source_dll).
400 The strings in the string table must start STRING__SIZE_SIZE bytes into
401 the table in order to for the string lookup code in coffgen/coffcode to
403 #define NUM_ILF_RELOCS 8
404 #define NUM_ILF_SECTIONS 6
405 #define NUM_ILF_SYMS (2 + NUM_ILF_SECTIONS)
407 #define SIZEOF_ILF_SYMS (NUM_ILF_SYMS * sizeof (* vars.sym_cache))
408 #define SIZEOF_ILF_SYM_TABLE (NUM_ILF_SYMS * sizeof (* vars.sym_table))
409 #define SIZEOF_ILF_NATIVE_SYMS (NUM_ILF_SYMS * sizeof (* vars.native_syms))
410 #define SIZEOF_ILF_SYM_PTR_TABLE (NUM_ILF_SYMS * sizeof (* vars.sym_ptr_table))
411 #define SIZEOF_ILF_EXT_SYMS (NUM_ILF_SYMS * sizeof (* vars.esym_table))
412 #define SIZEOF_ILF_RELOCS (NUM_ILF_RELOCS * sizeof (* vars.reltab))
413 #define SIZEOF_ILF_INT_RELOCS (NUM_ILF_RELOCS * sizeof (* vars.int_reltab))
414 #define SIZEOF_ILF_STRINGS (strlen (symbol_name) * 2 + 8 \
415 + 21 + strlen (source_dll) \
416 + NUM_ILF_SECTIONS * 9 \
418 #define SIZEOF_IDATA2 (5 * 4)
420 /* For PEx64 idata4 & 5 have thumb size of 8 bytes. */
421 #ifdef COFF_WITH_pex64
422 #define SIZEOF_IDATA4 (2 * 4)
423 #define SIZEOF_IDATA5 (2 * 4)
425 #define SIZEOF_IDATA4 (1 * 4)
426 #define SIZEOF_IDATA5 (1 * 4)
429 #define SIZEOF_IDATA6 (2 + strlen (symbol_name) + 1 + 1)
430 #define SIZEOF_IDATA7 (strlen (source_dll) + 1 + 1)
431 #define SIZEOF_ILF_SECTIONS (NUM_ILF_SECTIONS * sizeof (struct coff_section_tdata))
433 #define ILF_DATA_SIZE \
435 + SIZEOF_ILF_SYM_TABLE \
436 + SIZEOF_ILF_NATIVE_SYMS \
437 + SIZEOF_ILF_SYM_PTR_TABLE \
438 + SIZEOF_ILF_EXT_SYMS \
439 + SIZEOF_ILF_RELOCS \
440 + SIZEOF_ILF_INT_RELOCS \
441 + SIZEOF_ILF_STRINGS \
447 + SIZEOF_ILF_SECTIONS \
448 + MAX_TEXT_SECTION_SIZE
450 /* Create an empty relocation against the given symbol. */
453 pe_ILF_make_a_symbol_reloc (pe_ILF_vars * vars,
455 bfd_reloc_code_real_type reloc,
456 struct bfd_symbol ** sym,
457 unsigned int sym_index)
460 struct internal_reloc * internal;
462 entry = vars->reltab + vars->relcount;
463 internal = vars->int_reltab + vars->relcount;
465 entry->address = address;
467 entry->howto = bfd_reloc_type_lookup (vars->abfd, reloc);
468 entry->sym_ptr_ptr = sym;
470 internal->r_vaddr = address;
471 internal->r_symndx = sym_index;
472 internal->r_type = entry->howto->type;
476 BFD_ASSERT (vars->relcount <= NUM_ILF_RELOCS);
479 /* Create an empty relocation against the given section. */
482 pe_ILF_make_a_reloc (pe_ILF_vars * vars,
484 bfd_reloc_code_real_type reloc,
487 pe_ILF_make_a_symbol_reloc (vars, address, reloc, sec->symbol_ptr_ptr,
488 coff_section_data (vars->abfd, sec)->i);
491 /* Move the queued relocs into the given section. */
494 pe_ILF_save_relocs (pe_ILF_vars * vars,
497 /* Make sure that there is somewhere to store the internal relocs. */
498 if (coff_section_data (vars->abfd, sec) == NULL)
499 /* We should probably return an error indication here. */
502 coff_section_data (vars->abfd, sec)->relocs = vars->int_reltab;
503 coff_section_data (vars->abfd, sec)->keep_relocs = TRUE;
505 sec->relocation = vars->reltab;
506 sec->reloc_count = vars->relcount;
507 sec->flags |= SEC_RELOC;
509 vars->reltab += vars->relcount;
510 vars->int_reltab += vars->relcount;
513 BFD_ASSERT ((bfd_byte *) vars->int_reltab < (bfd_byte *) vars->string_table);
516 /* Create a global symbol and add it to the relevant tables. */
519 pe_ILF_make_a_symbol (pe_ILF_vars * vars,
521 const char * symbol_name,
522 asection_ptr section,
523 flagword extra_flags)
525 coff_symbol_type * sym;
526 combined_entry_type * ent;
528 unsigned short sclass;
530 if (extra_flags & BSF_LOCAL)
536 if (vars->magic == THUMBPEMAGIC)
538 if (extra_flags & BSF_FUNCTION)
539 sclass = C_THUMBEXTFUNC;
540 else if (extra_flags & BSF_LOCAL)
541 sclass = C_THUMBSTAT;
547 BFD_ASSERT (vars->sym_index < NUM_ILF_SYMS);
550 ent = vars->native_ptr;
551 esym = vars->esym_ptr;
553 /* Copy the symbol's name into the string table. */
554 sprintf (vars->string_ptr, "%s%s", prefix, symbol_name);
557 section = bfd_und_section_ptr;
559 /* Initialise the external symbol. */
560 H_PUT_32 (vars->abfd, vars->string_ptr - vars->string_table,
562 H_PUT_16 (vars->abfd, section->target_index, esym->e_scnum);
563 esym->e_sclass[0] = sclass;
565 /* The following initialisations are unnecessary - the memory is
566 zero initialised. They are just kept here as reminders. */
568 /* Initialise the internal symbol structure. */
569 ent->u.syment.n_sclass = sclass;
570 ent->u.syment.n_scnum = section->target_index;
571 ent->u.syment._n._n_n._n_offset = (bfd_hostptr_t) sym;
573 sym->symbol.the_bfd = vars->abfd;
574 sym->symbol.name = vars->string_ptr;
575 sym->symbol.flags = BSF_EXPORT | BSF_GLOBAL | extra_flags;
576 sym->symbol.section = section;
579 * vars->table_ptr = vars->sym_index;
580 * vars->sym_ptr_ptr = sym;
582 /* Adjust pointers for the next symbol. */
585 vars->sym_ptr_ptr ++;
589 vars->string_ptr += strlen (symbol_name) + strlen (prefix) + 1;
591 BFD_ASSERT (vars->string_ptr < vars->end_string_ptr);
594 /* Create a section. */
597 pe_ILF_make_a_section (pe_ILF_vars * vars,
600 flagword extra_flags)
605 sec = bfd_make_section_old_way (vars->abfd, name);
609 flags = SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_KEEP | SEC_IN_MEMORY;
611 bfd_set_section_flags (vars->abfd, sec, flags | extra_flags);
613 bfd_set_section_alignment (vars->abfd, sec, 2);
615 /* Check that we will not run out of space. */
616 BFD_ASSERT (vars->data + size < vars->bim->buffer + vars->bim->size);
618 /* Set the section size and contents. The actual
619 contents are filled in by our parent. */
620 bfd_set_section_size (vars->abfd, sec, (bfd_size_type) size);
621 sec->contents = vars->data;
622 sec->target_index = vars->sec_index ++;
624 /* Advance data pointer in the vars structure. */
627 /* Skip the padding byte if it was not needed.
628 The logic here is that if the string length is odd,
629 then the entire string length, including the null byte,
630 is even and so the extra, padding byte, is not needed. */
634 /* Create a coff_section_tdata structure for our use. */
635 sec->used_by_bfd = (struct coff_section_tdata *) vars->data;
636 vars->data += sizeof (struct coff_section_tdata);
638 BFD_ASSERT (vars->data <= vars->bim->buffer + vars->bim->size);
640 /* Create a symbol to refer to this section. */
641 pe_ILF_make_a_symbol (vars, "", name, sec, BSF_LOCAL);
643 /* Cache the index to the symbol in the coff_section_data structure. */
644 coff_section_data (vars->abfd, sec)->i = vars->sym_index - 1;
649 /* This structure contains the code that goes into the .text section
650 in order to perform a jump into the DLL lookup table. The entries
651 in the table are index by the magic number used to represent the
652 machine type in the PE file. The contents of the data[] arrays in
653 these entries are stolen from the jtab[] arrays in ld/pe-dll.c.
654 The SIZE field says how many bytes in the DATA array are actually
655 used. The OFFSET field says where in the data array the address
656 of the .idata$5 section should be placed. */
657 #define MAX_TEXT_SECTION_SIZE 32
661 unsigned short magic;
662 unsigned char data[MAX_TEXT_SECTION_SIZE];
668 static jump_table jtab[] =
672 { 0xff, 0x25, 0x00, 0x00, 0x00, 0x00, 0x90, 0x90 },
679 { 0xff, 0x25, 0x00, 0x00, 0x00, 0x00, 0x90, 0x90 },
686 { /* XXX fill me in */ },
691 #ifdef MIPS_ARCH_MAGIC_WINCE
692 { MIPS_ARCH_MAGIC_WINCE,
693 { 0x00, 0x00, 0x08, 0x3c, 0x00, 0x00, 0x08, 0x8d,
694 0x08, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00 },
699 #ifdef SH_ARCH_MAGIC_WINCE
700 { SH_ARCH_MAGIC_WINCE,
701 { 0x01, 0xd0, 0x02, 0x60, 0x2b, 0x40,
702 0x09, 0x00, 0x00, 0x00, 0x00, 0x00 },
709 { 0x00, 0xc0, 0x9f, 0xe5, 0x00, 0xf0,
710 0x9c, 0xe5, 0x00, 0x00, 0x00, 0x00},
717 { 0x40, 0xb4, 0x02, 0x4e, 0x36, 0x68, 0xb4, 0x46,
718 0x40, 0xbc, 0x60, 0x47, 0x00, 0x00, 0x00, 0x00 },
726 #define NUM_ENTRIES(a) (sizeof (a) / sizeof (a)[0])
729 /* Build a full BFD from the information supplied in a ILF object. */
732 pe_ILF_build_a_bfd (bfd * abfd,
736 unsigned int ordinal,
741 struct internal_filehdr internal_f;
742 unsigned int import_type;
743 unsigned int import_name_type;
744 asection_ptr id4, id5, id6 = NULL, text = NULL;
745 coff_symbol_type ** imp_sym;
746 unsigned int imp_index;
748 /* Decode and verify the types field of the ILF structure. */
749 import_type = types & 0x3;
750 import_name_type = (types & 0x1c) >> 2;
759 /* XXX code yet to be written. */
760 _bfd_error_handler (_("%B: Unhandled import type; %x"),
765 _bfd_error_handler (_("%B: Unrecognised import type; %x"),
770 switch (import_name_type)
774 case IMPORT_NAME_NOPREFIX:
775 case IMPORT_NAME_UNDECORATE:
779 _bfd_error_handler (_("%B: Unrecognised import name type; %x"),
780 abfd, import_name_type);
784 /* Initialise local variables.
786 Note these are kept in a structure rather than being
787 declared as statics since bfd frowns on global variables.
789 We are going to construct the contents of the BFD in memory,
790 so allocate all the space that we will need right now. */
792 = (struct bfd_in_memory *) bfd_malloc ((bfd_size_type) sizeof (*vars.bim));
793 if (vars.bim == NULL)
796 ptr = (bfd_byte *) bfd_zmalloc ((bfd_size_type) ILF_DATA_SIZE);
797 vars.bim->buffer = ptr;
798 vars.bim->size = ILF_DATA_SIZE;
802 /* Initialise the pointers to regions of the memory and the
803 other contents of the pe_ILF_vars structure as well. */
804 vars.sym_cache = (coff_symbol_type *) ptr;
805 vars.sym_ptr = (coff_symbol_type *) ptr;
807 ptr += SIZEOF_ILF_SYMS;
809 vars.sym_table = (unsigned int *) ptr;
810 vars.table_ptr = (unsigned int *) ptr;
811 ptr += SIZEOF_ILF_SYM_TABLE;
813 vars.native_syms = (combined_entry_type *) ptr;
814 vars.native_ptr = (combined_entry_type *) ptr;
815 ptr += SIZEOF_ILF_NATIVE_SYMS;
817 vars.sym_ptr_table = (coff_symbol_type **) ptr;
818 vars.sym_ptr_ptr = (coff_symbol_type **) ptr;
819 ptr += SIZEOF_ILF_SYM_PTR_TABLE;
821 vars.esym_table = (SYMENT *) ptr;
822 vars.esym_ptr = (SYMENT *) ptr;
823 ptr += SIZEOF_ILF_EXT_SYMS;
825 vars.reltab = (arelent *) ptr;
827 ptr += SIZEOF_ILF_RELOCS;
829 vars.int_reltab = (struct internal_reloc *) ptr;
830 ptr += SIZEOF_ILF_INT_RELOCS;
832 vars.string_table = (char *) ptr;
833 vars.string_ptr = (char *) ptr + STRING_SIZE_SIZE;
834 ptr += SIZEOF_ILF_STRINGS;
835 vars.end_string_ptr = (char *) ptr;
837 /* The remaining space in bim->buffer is used
838 by the pe_ILF_make_a_section() function. */
844 /* Create the initial .idata$<n> sections:
845 [.idata$2: Import Directory Table -- not needed]
846 .idata$4: Import Lookup Table
847 .idata$5: Import Address Table
849 Note we do not create a .idata$3 section as this is
850 created for us by the linker script. */
851 id4 = pe_ILF_make_a_section (& vars, ".idata$4", SIZEOF_IDATA4, 0);
852 id5 = pe_ILF_make_a_section (& vars, ".idata$5", SIZEOF_IDATA5, 0);
853 if (id4 == NULL || id5 == NULL)
856 /* Fill in the contents of these sections. */
857 if (import_name_type == IMPORT_ORDINAL)
860 /* XXX - treat as IMPORT_NAME ??? */
863 #ifdef COFF_WITH_pex64
864 ((unsigned int *) id4->contents)[0] = ordinal;
865 ((unsigned int *) id4->contents)[1] = 0x80000000;
866 ((unsigned int *) id5->contents)[0] = ordinal;
867 ((unsigned int *) id5->contents)[1] = 0x80000000;
869 * (unsigned int *) id4->contents = ordinal | 0x80000000;
870 * (unsigned int *) id5->contents = ordinal | 0x80000000;
878 /* Create .idata$6 - the Hint Name Table. */
879 id6 = pe_ILF_make_a_section (& vars, ".idata$6", SIZEOF_IDATA6, 0);
883 /* If necessary, trim the import symbol name. */
884 symbol = symbol_name;
886 /* As used by MS compiler, '_', '@', and '?' are alternative
887 forms of USER_LABEL_PREFIX, with '?' for c++ mangled names,
888 '@' used for fastcall (in C), '_' everywhere else. Only one
889 of these is used for a symbol. We strip this leading char for
890 IMPORT_NAME_NOPREFIX and IMPORT_NAME_UNDECORATE as per the
891 PE COFF 6.0 spec (section 8.3, Import Name Type). */
893 if (import_name_type != IMPORT_NAME)
897 /* Check that we don't remove for targets with empty
898 USER_LABEL_PREFIX the leading underscore. */
899 if ((c == '_' && abfd->xvec->symbol_leading_char != 0)
900 || c == '@' || c == '?')
904 len = strlen (symbol);
905 if (import_name_type == IMPORT_NAME_UNDECORATE)
907 /* Truncate at the first '@'. */
908 char *at = strchr (symbol, '@');
914 id6->contents[0] = ordinal & 0xff;
915 id6->contents[1] = ordinal >> 8;
917 memcpy ((char *) id6->contents + 2, symbol, len);
918 id6->contents[len + 2] = '\0';
921 if (import_name_type != IMPORT_ORDINAL)
923 pe_ILF_make_a_reloc (&vars, (bfd_vma) 0, BFD_RELOC_RVA, id6);
924 pe_ILF_save_relocs (&vars, id4);
926 pe_ILF_make_a_reloc (&vars, (bfd_vma) 0, BFD_RELOC_RVA, id6);
927 pe_ILF_save_relocs (&vars, id5);
930 /* Create extra sections depending upon the type of import we are dealing with. */
936 /* Create a .text section.
937 First we need to look up its contents in the jump table. */
938 for (i = NUM_ENTRIES (jtab); i--;)
940 if (jtab[i].size == 0)
942 if (jtab[i].magic == magic)
945 /* If we did not find a matching entry something is wrong. */
949 /* Create the .text section. */
950 text = pe_ILF_make_a_section (& vars, ".text", jtab[i].size, SEC_CODE);
954 /* Copy in the jump code. */
955 memcpy (text->contents, jtab[i].data, jtab[i].size);
957 /* Create an import symbol. */
958 pe_ILF_make_a_symbol (& vars, "__imp_", symbol_name, id5, 0);
959 imp_sym = vars.sym_ptr_ptr - 1;
960 imp_index = vars.sym_index - 1;
962 /* Create a reloc for the data in the text section. */
963 #ifdef MIPS_ARCH_MAGIC_WINCE
964 if (magic == MIPS_ARCH_MAGIC_WINCE)
966 pe_ILF_make_a_symbol_reloc (&vars, (bfd_vma) 0, BFD_RELOC_HI16_S,
967 (struct bfd_symbol **) imp_sym,
969 pe_ILF_make_a_reloc (&vars, (bfd_vma) 0, BFD_RELOC_LO16, text);
970 pe_ILF_make_a_symbol_reloc (&vars, (bfd_vma) 4, BFD_RELOC_LO16,
971 (struct bfd_symbol **) imp_sym,
976 pe_ILF_make_a_symbol_reloc (&vars, (bfd_vma) jtab[i].offset,
977 BFD_RELOC_32, (asymbol **) imp_sym,
980 pe_ILF_save_relocs (& vars, text);
987 /* XXX code not yet written. */
991 /* Initialise the bfd. */
992 memset (& internal_f, 0, sizeof (internal_f));
994 internal_f.f_magic = magic;
995 internal_f.f_symptr = 0;
996 internal_f.f_nsyms = 0;
997 internal_f.f_flags = F_AR32WR | F_LNNO; /* XXX is this correct ? */
999 if ( ! bfd_set_start_address (abfd, (bfd_vma) 0)
1000 || ! bfd_coff_set_arch_mach_hook (abfd, & internal_f))
1003 if (bfd_coff_mkobject_hook (abfd, (void *) & internal_f, NULL) == NULL)
1006 coff_data (abfd)->pe = 1;
1008 if (vars.magic == THUMBPEMAGIC)
1009 /* Stop some linker warnings about thumb code not supporting interworking. */
1010 coff_data (abfd)->flags |= F_INTERWORK | F_INTERWORK_SET;
1013 /* Switch from file contents to memory contents. */
1014 bfd_cache_close (abfd);
1016 abfd->iostream = (void *) vars.bim;
1017 abfd->flags |= BFD_IN_MEMORY /* | HAS_LOCALS */;
1018 abfd->iovec = &_bfd_memory_iovec;
1021 obj_sym_filepos (abfd) = 0;
1023 /* Now create a symbol describing the imported value. */
1024 switch (import_type)
1027 pe_ILF_make_a_symbol (& vars, "", symbol_name, text,
1028 BSF_NOT_AT_END | BSF_FUNCTION);
1030 /* Create an import symbol for the DLL, without the
1032 ptr = (bfd_byte *) strrchr (source_dll, '.');
1035 pe_ILF_make_a_symbol (& vars, "__IMPORT_DESCRIPTOR_", source_dll, NULL, 0);
1041 /* Nothing to do here. */
1045 /* XXX code not yet written. */
1049 /* Point the bfd at the symbol table. */
1050 obj_symbols (abfd) = vars.sym_cache;
1051 bfd_get_symcount (abfd) = vars.sym_index;
1053 obj_raw_syments (abfd) = vars.native_syms;
1054 obj_raw_syment_count (abfd) = vars.sym_index;
1056 obj_coff_external_syms (abfd) = (void *) vars.esym_table;
1057 obj_coff_keep_syms (abfd) = TRUE;
1059 obj_convert (abfd) = vars.sym_table;
1060 obj_conv_table_size (abfd) = vars.sym_index;
1062 obj_coff_strings (abfd) = vars.string_table;
1063 obj_coff_keep_strings (abfd) = TRUE;
1065 abfd->flags |= HAS_SYMS;
1070 if (vars.bim->buffer != NULL)
1071 free (vars.bim->buffer);
1076 /* We have detected a Image Library Format archive element.
1077 Decode the element and return the appropriate target. */
1079 static const bfd_target *
1080 pe_ILF_object_p (bfd * abfd)
1082 bfd_byte buffer[16];
1086 unsigned int machine;
1088 unsigned int ordinal;
1092 /* Upon entry the first four buyes of the ILF header have
1093 already been read. Now read the rest of the header. */
1094 if (bfd_bread (buffer, (bfd_size_type) 16, abfd) != 16)
1099 /* We do not bother to check the version number.
1100 version = H_GET_16 (abfd, ptr); */
1103 machine = H_GET_16 (abfd, ptr);
1106 /* Check that the machine type is recognised. */
1111 case IMAGE_FILE_MACHINE_UNKNOWN:
1112 case IMAGE_FILE_MACHINE_ALPHA:
1113 case IMAGE_FILE_MACHINE_ALPHA64:
1114 case IMAGE_FILE_MACHINE_IA64:
1117 case IMAGE_FILE_MACHINE_I386:
1123 case IMAGE_FILE_MACHINE_AMD64:
1129 case IMAGE_FILE_MACHINE_M68K:
1135 case IMAGE_FILE_MACHINE_R3000:
1136 case IMAGE_FILE_MACHINE_R4000:
1137 case IMAGE_FILE_MACHINE_R10000:
1139 case IMAGE_FILE_MACHINE_MIPS16:
1140 case IMAGE_FILE_MACHINE_MIPSFPU:
1141 case IMAGE_FILE_MACHINE_MIPSFPU16:
1142 #ifdef MIPS_ARCH_MAGIC_WINCE
1143 magic = MIPS_ARCH_MAGIC_WINCE;
1147 case IMAGE_FILE_MACHINE_SH3:
1148 case IMAGE_FILE_MACHINE_SH4:
1149 #ifdef SH_ARCH_MAGIC_WINCE
1150 magic = SH_ARCH_MAGIC_WINCE;
1154 case IMAGE_FILE_MACHINE_ARM:
1160 case IMAGE_FILE_MACHINE_THUMB:
1163 extern const bfd_target TARGET_LITTLE_SYM;
1165 if (abfd->xvec == & TARGET_LITTLE_SYM)
1166 magic = THUMBPEMAGIC;
1171 case IMAGE_FILE_MACHINE_POWERPC:
1172 /* We no longer support PowerPC. */
1175 (_("%B: Unrecognised machine type (0x%x)"
1176 " in Import Library Format archive"),
1178 bfd_set_error (bfd_error_malformed_archive);
1187 (_("%B: Recognised but unhandled machine type (0x%x)"
1188 " in Import Library Format archive"),
1190 bfd_set_error (bfd_error_wrong_format);
1195 /* We do not bother to check the date.
1196 date = H_GET_32 (abfd, ptr); */
1199 size = H_GET_32 (abfd, ptr);
1205 (_("%B: size field is zero in Import Library Format header"), abfd);
1206 bfd_set_error (bfd_error_malformed_archive);
1211 ordinal = H_GET_16 (abfd, ptr);
1214 types = H_GET_16 (abfd, ptr);
1217 /* Now read in the two strings that follow. */
1218 ptr = (bfd_byte *) bfd_alloc (abfd, size);
1222 if (bfd_bread (ptr, size, abfd) != size)
1224 bfd_release (abfd, ptr);
1228 symbol_name = (char *) ptr;
1229 source_dll = symbol_name + strlen (symbol_name) + 1;
1231 /* Verify that the strings are null terminated. */
1232 if (ptr[size - 1] != 0
1233 || (bfd_size_type) ((bfd_byte *) source_dll - ptr) >= size)
1236 (_("%B: string not null terminated in ILF object file."), abfd);
1237 bfd_set_error (bfd_error_malformed_archive);
1238 bfd_release (abfd, ptr);
1242 /* Now construct the bfd. */
1243 if (! pe_ILF_build_a_bfd (abfd, magic, symbol_name,
1244 source_dll, ordinal, types))
1246 bfd_release (abfd, ptr);
1253 static const bfd_target *
1254 pe_bfd_object_p (bfd * abfd)
1257 struct external_PEI_DOS_hdr dos_hdr;
1258 struct external_PEI_IMAGE_hdr image_hdr;
1259 struct internal_filehdr internal_f;
1260 struct internal_aouthdr internal_a;
1261 file_ptr opt_hdr_size;
1264 /* Detect if this a Microsoft Import Library Format element. */
1265 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0
1266 || bfd_bread (buffer, (bfd_size_type) 4, abfd) != 4)
1268 if (bfd_get_error () != bfd_error_system_call)
1269 bfd_set_error (bfd_error_wrong_format);
1273 if (H_GET_32 (abfd, buffer) == 0xffff0000)
1274 return pe_ILF_object_p (abfd);
1276 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0
1277 || bfd_bread (&dos_hdr, (bfd_size_type) sizeof (dos_hdr), abfd)
1278 != sizeof (dos_hdr))
1280 if (bfd_get_error () != bfd_error_system_call)
1281 bfd_set_error (bfd_error_wrong_format);
1285 /* There are really two magic numbers involved; the magic number
1286 that says this is a NT executable (PEI) and the magic number that
1287 determines the architecture. The former is DOSMAGIC, stored in
1288 the e_magic field. The latter is stored in the f_magic field.
1289 If the NT magic number isn't valid, the architecture magic number
1290 could be mimicked by some other field (specifically, the number
1291 of relocs in section 3). Since this routine can only be called
1292 correctly for a PEI file, check the e_magic number here, and, if
1293 it doesn't match, clobber the f_magic number so that we don't get
1295 if (H_GET_16 (abfd, dos_hdr.e_magic) != DOSMAGIC)
1297 bfd_set_error (bfd_error_wrong_format);
1301 offset = H_GET_32 (abfd, dos_hdr.e_lfanew);
1302 if (bfd_seek (abfd, offset, SEEK_SET) != 0
1303 || (bfd_bread (&image_hdr, (bfd_size_type) sizeof (image_hdr), abfd)
1304 != sizeof (image_hdr)))
1306 if (bfd_get_error () != bfd_error_system_call)
1307 bfd_set_error (bfd_error_wrong_format);
1311 if (H_GET_32 (abfd, image_hdr.nt_signature) != 0x4550)
1313 bfd_set_error (bfd_error_wrong_format);
1317 /* Swap file header, so that we get the location for calling
1319 bfd_coff_swap_filehdr_in (abfd, (PTR)&image_hdr, &internal_f);
1321 if (! bfd_coff_bad_format_hook (abfd, &internal_f)
1322 || internal_f.f_opthdr > bfd_coff_aoutsz (abfd))
1324 bfd_set_error (bfd_error_wrong_format);
1328 /* Read the optional header, which has variable size. */
1329 opt_hdr_size = internal_f.f_opthdr;
1331 if (opt_hdr_size != 0)
1335 opthdr = bfd_alloc (abfd, opt_hdr_size);
1338 if (bfd_bread (opthdr, opt_hdr_size, abfd)
1339 != (bfd_size_type) opt_hdr_size)
1342 bfd_coff_swap_aouthdr_in (abfd, opthdr, (PTR) & internal_a);
1345 return coff_real_object_p (abfd, internal_f.f_nscns, &internal_f,
1348 : (struct internal_aouthdr *) NULL));
1351 #define coff_object_p pe_bfd_object_p
1352 #endif /* COFF_IMAGE_WITH_PE */