1 /* Support for the generic parts of PE/PEI, for BFD.
2 Copyright (C) 1995-2014 Free Software Foundation, Inc.
3 Written by Cygnus Solutions.
5 This file is part of BFD, the Binary File Descriptor library.
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 3 of the License, or
10 (at your option) any later version.
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.
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,
20 MA 02110-1301, USA. */
23 /* Most of this hacked by Steve Chamberlain,
26 PE/PEI rearrangement (and code added): Donn Terry
27 Softway Systems, Inc. */
29 /* Hey look, some documentation [and in a place you expect to find it]!
31 The main reference for the pei format is "Microsoft Portable Executable
32 and Common Object File Format Specification 4.1". Get it if you need to
33 do some serious hacking on this code.
36 "Peering Inside the PE: A Tour of the Win32 Portable Executable
37 File Format", MSJ 1994, Volume 9.
39 The *sole* difference between the pe format and the pei format is that the
40 latter has an MSDOS 2.0 .exe header on the front that prints the message
41 "This app must be run under Windows." (or some such).
42 (FIXME: Whether that statement is *really* true or not is unknown.
43 Are there more subtle differences between pe and pei formats?
44 For now assume there aren't. If you find one, then for God sakes
47 The Microsoft docs use the word "image" instead of "executable" because
48 the former can also refer to a DLL (shared library). Confusion can arise
49 because the `i' in `pei' also refers to "image". The `pe' format can
50 also create images (i.e. executables), it's just that to run on a win32
51 system you need to use the pei format.
53 FIXME: Please add more docs here so the next poor fool that has to hack
54 on this code has a chance of getting something accomplished without
55 wasting too much time. */
59 static bfd_boolean (*pe_saved_coff_bfd_print_private_bfd_data) (bfd *, void *) =
60 #ifndef coff_bfd_print_private_bfd_data
63 coff_bfd_print_private_bfd_data;
64 #undef coff_bfd_print_private_bfd_data
67 static bfd_boolean pe_print_private_bfd_data (bfd *, void *);
68 #define coff_bfd_print_private_bfd_data pe_print_private_bfd_data
70 static bfd_boolean (*pe_saved_coff_bfd_copy_private_bfd_data) (bfd *, bfd *) =
71 #ifndef coff_bfd_copy_private_bfd_data
74 coff_bfd_copy_private_bfd_data;
75 #undef coff_bfd_copy_private_bfd_data
78 static bfd_boolean pe_bfd_copy_private_bfd_data (bfd *, bfd *);
79 #define coff_bfd_copy_private_bfd_data pe_bfd_copy_private_bfd_data
81 #define coff_mkobject pe_mkobject
82 #define coff_mkobject_hook pe_mkobject_hook
84 #ifdef COFF_IMAGE_WITH_PE
85 /* This structure contains static variables used by the ILF code. */
86 typedef asection * asection_ptr;
92 struct bfd_in_memory * bim;
96 unsigned int relcount;
98 coff_symbol_type * sym_cache;
99 coff_symbol_type * sym_ptr;
100 unsigned int sym_index;
102 unsigned int * sym_table;
103 unsigned int * table_ptr;
105 combined_entry_type * native_syms;
106 combined_entry_type * native_ptr;
108 coff_symbol_type ** sym_ptr_table;
109 coff_symbol_type ** sym_ptr_ptr;
111 unsigned int sec_index;
115 char * end_string_ptr;
120 struct internal_reloc * int_reltab;
123 #endif /* COFF_IMAGE_WITH_PE */
125 const bfd_target *coff_real_object_p
126 (bfd *, unsigned, struct internal_filehdr *, struct internal_aouthdr *);
128 #ifndef NO_COFF_RELOCS
130 coff_swap_reloc_in (bfd * abfd, void * src, void * dst)
132 RELOC *reloc_src = (RELOC *) src;
133 struct internal_reloc *reloc_dst = (struct internal_reloc *) dst;
135 reloc_dst->r_vaddr = H_GET_32 (abfd, reloc_src->r_vaddr);
136 reloc_dst->r_symndx = H_GET_S32 (abfd, reloc_src->r_symndx);
137 reloc_dst->r_type = H_GET_16 (abfd, reloc_src->r_type);
138 #ifdef SWAP_IN_RELOC_OFFSET
139 reloc_dst->r_offset = SWAP_IN_RELOC_OFFSET (abfd, reloc_src->r_offset);
144 coff_swap_reloc_out (bfd * abfd, void * src, void * dst)
146 struct internal_reloc *reloc_src = (struct internal_reloc *) src;
147 struct external_reloc *reloc_dst = (struct external_reloc *) dst;
149 H_PUT_32 (abfd, reloc_src->r_vaddr, reloc_dst->r_vaddr);
150 H_PUT_32 (abfd, reloc_src->r_symndx, reloc_dst->r_symndx);
151 H_PUT_16 (abfd, reloc_src->r_type, reloc_dst->r_type);
153 #ifdef SWAP_OUT_RELOC_OFFSET
154 SWAP_OUT_RELOC_OFFSET (abfd, reloc_src->r_offset, reloc_dst->r_offset);
156 #ifdef SWAP_OUT_RELOC_EXTRA
157 SWAP_OUT_RELOC_EXTRA (abfd, reloc_src, reloc_dst);
161 #endif /* not NO_COFF_RELOCS */
163 #ifdef COFF_IMAGE_WITH_PE
165 #define FILHDR struct external_PEI_IMAGE_hdr
169 coff_swap_filehdr_in (bfd * abfd, void * src, void * dst)
171 FILHDR *filehdr_src = (FILHDR *) src;
172 struct internal_filehdr *filehdr_dst = (struct internal_filehdr *) dst;
174 filehdr_dst->f_magic = H_GET_16 (abfd, filehdr_src->f_magic);
175 filehdr_dst->f_nscns = H_GET_16 (abfd, filehdr_src->f_nscns);
176 filehdr_dst->f_timdat = H_GET_32 (abfd, filehdr_src->f_timdat);
177 filehdr_dst->f_nsyms = H_GET_32 (abfd, filehdr_src->f_nsyms);
178 filehdr_dst->f_flags = H_GET_16 (abfd, filehdr_src->f_flags);
179 filehdr_dst->f_symptr = H_GET_32 (abfd, filehdr_src->f_symptr);
181 /* Other people's tools sometimes generate headers with an nsyms but
183 if (filehdr_dst->f_nsyms != 0 && filehdr_dst->f_symptr == 0)
185 filehdr_dst->f_nsyms = 0;
186 filehdr_dst->f_flags |= F_LSYMS;
189 filehdr_dst->f_opthdr = H_GET_16 (abfd, filehdr_src-> f_opthdr);
192 #ifdef COFF_IMAGE_WITH_PE
193 # define coff_swap_filehdr_out _bfd_XXi_only_swap_filehdr_out
194 #elif defined COFF_WITH_pex64
195 # define coff_swap_filehdr_out _bfd_pex64_only_swap_filehdr_out
196 #elif defined COFF_WITH_pep
197 # define coff_swap_filehdr_out _bfd_pep_only_swap_filehdr_out
199 # define coff_swap_filehdr_out _bfd_pe_only_swap_filehdr_out
203 coff_swap_scnhdr_in (bfd * abfd, void * ext, void * in)
205 SCNHDR *scnhdr_ext = (SCNHDR *) ext;
206 struct internal_scnhdr *scnhdr_int = (struct internal_scnhdr *) in;
208 memcpy (scnhdr_int->s_name, scnhdr_ext->s_name, sizeof (scnhdr_int->s_name));
210 scnhdr_int->s_vaddr = GET_SCNHDR_VADDR (abfd, scnhdr_ext->s_vaddr);
211 scnhdr_int->s_paddr = GET_SCNHDR_PADDR (abfd, scnhdr_ext->s_paddr);
212 scnhdr_int->s_size = GET_SCNHDR_SIZE (abfd, scnhdr_ext->s_size);
213 scnhdr_int->s_scnptr = GET_SCNHDR_SCNPTR (abfd, scnhdr_ext->s_scnptr);
214 scnhdr_int->s_relptr = GET_SCNHDR_RELPTR (abfd, scnhdr_ext->s_relptr);
215 scnhdr_int->s_lnnoptr = GET_SCNHDR_LNNOPTR (abfd, scnhdr_ext->s_lnnoptr);
216 scnhdr_int->s_flags = H_GET_32 (abfd, scnhdr_ext->s_flags);
218 /* MS handles overflow of line numbers by carrying into the reloc
219 field (it appears). Since it's supposed to be zero for PE
220 *IMAGE* format, that's safe. This is still a bit iffy. */
221 #ifdef COFF_IMAGE_WITH_PE
222 scnhdr_int->s_nlnno = (H_GET_16 (abfd, scnhdr_ext->s_nlnno)
223 + (H_GET_16 (abfd, scnhdr_ext->s_nreloc) << 16));
224 scnhdr_int->s_nreloc = 0;
226 scnhdr_int->s_nreloc = H_GET_16 (abfd, scnhdr_ext->s_nreloc);
227 scnhdr_int->s_nlnno = H_GET_16 (abfd, scnhdr_ext->s_nlnno);
230 if (scnhdr_int->s_vaddr != 0)
232 scnhdr_int->s_vaddr += pe_data (abfd)->pe_opthdr.ImageBase;
233 /* Do not cut upper 32-bits for 64-bit vma. */
234 #ifndef COFF_WITH_pex64
235 scnhdr_int->s_vaddr &= 0xffffffff;
239 #ifndef COFF_NO_HACK_SCNHDR_SIZE
240 /* If this section holds uninitialized data and is from an object file
241 or from an executable image that has not initialized the field,
242 or if the image is an executable file and the physical size is padded,
243 use the virtual size (stored in s_paddr) instead. */
244 if (scnhdr_int->s_paddr > 0
245 && (((scnhdr_int->s_flags & IMAGE_SCN_CNT_UNINITIALIZED_DATA) != 0
246 && (! bfd_pei_p (abfd) || scnhdr_int->s_size == 0))
247 || (bfd_pei_p (abfd) && (scnhdr_int->s_size > scnhdr_int->s_paddr))))
248 /* This code used to set scnhdr_int->s_paddr to 0. However,
249 coff_set_alignment_hook stores s_paddr in virt_size, which
250 only works if it correctly holds the virtual size of the
252 scnhdr_int->s_size = scnhdr_int->s_paddr;
257 pe_mkobject (bfd * abfd)
260 bfd_size_type amt = sizeof (pe_data_type);
262 abfd->tdata.pe_obj_data = (struct pe_tdata *) bfd_zalloc (abfd, amt);
264 if (abfd->tdata.pe_obj_data == 0)
271 /* in_reloc_p is architecture dependent. */
272 pe->in_reloc_p = in_reloc_p;
277 /* Create the COFF backend specific information. */
280 pe_mkobject_hook (bfd * abfd,
282 void * aouthdr ATTRIBUTE_UNUSED)
284 struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
287 if (! pe_mkobject (abfd))
291 pe->coff.sym_filepos = internal_f->f_symptr;
292 /* These members communicate important constants about the symbol
293 table to GDB's symbol-reading code. These `constants'
294 unfortunately vary among coff implementations... */
295 pe->coff.local_n_btmask = N_BTMASK;
296 pe->coff.local_n_btshft = N_BTSHFT;
297 pe->coff.local_n_tmask = N_TMASK;
298 pe->coff.local_n_tshift = N_TSHIFT;
299 pe->coff.local_symesz = SYMESZ;
300 pe->coff.local_auxesz = AUXESZ;
301 pe->coff.local_linesz = LINESZ;
303 pe->coff.timestamp = internal_f->f_timdat;
305 obj_raw_syment_count (abfd) =
306 obj_conv_table_size (abfd) =
309 pe->real_flags = internal_f->f_flags;
311 if ((internal_f->f_flags & F_DLL) != 0)
314 if ((internal_f->f_flags & IMAGE_FILE_DEBUG_STRIPPED) == 0)
315 abfd->flags |= HAS_DEBUG;
317 #ifdef COFF_IMAGE_WITH_PE
319 pe->pe_opthdr = ((struct internal_aouthdr *) aouthdr)->pe;
323 if (! _bfd_coff_arm_set_private_flags (abfd, internal_f->f_flags))
324 coff_data (abfd) ->flags = 0;
331 pe_print_private_bfd_data (bfd *abfd, void * vfile)
333 FILE *file = (FILE *) vfile;
335 if (!_bfd_XX_print_private_bfd_data_common (abfd, vfile))
338 if (pe_saved_coff_bfd_print_private_bfd_data == NULL)
343 return pe_saved_coff_bfd_print_private_bfd_data (abfd, vfile);
346 /* Copy any private info we understand from the input bfd
347 to the output bfd. */
350 pe_bfd_copy_private_bfd_data (bfd *ibfd, bfd *obfd)
352 /* PR binutils/716: Copy the large address aware flag.
353 XXX: Should we be copying other flags or other fields in the pe_data()
355 if (pe_data (obfd) != NULL
356 && pe_data (ibfd) != NULL
357 && pe_data (ibfd)->real_flags & IMAGE_FILE_LARGE_ADDRESS_AWARE)
358 pe_data (obfd)->real_flags |= IMAGE_FILE_LARGE_ADDRESS_AWARE;
360 if (!_bfd_XX_bfd_copy_private_bfd_data_common (ibfd, obfd))
363 if (pe_saved_coff_bfd_copy_private_bfd_data)
364 return pe_saved_coff_bfd_copy_private_bfd_data (ibfd, obfd);
369 #define coff_bfd_copy_private_section_data \
370 _bfd_XX_bfd_copy_private_section_data
372 #define coff_get_symbol_info _bfd_XX_get_symbol_info
374 #ifdef COFF_IMAGE_WITH_PE
376 /* Code to handle Microsoft's Image Library Format.
377 Also known as LINK6 format.
378 Documentation about this format can be found at:
380 http://msdn.microsoft.com/library/specs/pecoff_section8.htm */
382 /* The following constants specify the sizes of the various data
383 structures that we have to create in order to build a bfd describing
384 an ILF object file. The final "+ 1" in the definitions of SIZEOF_IDATA6
385 and SIZEOF_IDATA7 below is to allow for the possibility that we might
386 need a padding byte in order to ensure 16 bit alignment for the section's
389 The value for SIZEOF_ILF_STRINGS is computed as follows:
391 There will be NUM_ILF_SECTIONS section symbols. Allow 9 characters
392 per symbol for their names (longest section name is .idata$x).
394 There will be two symbols for the imported value, one the symbol name
395 and one with _imp__ prefixed. Allowing for the terminating nul's this
396 is strlen (symbol_name) * 2 + 8 + 21 + strlen (source_dll).
398 The strings in the string table must start STRING__SIZE_SIZE bytes into
399 the table in order to for the string lookup code in coffgen/coffcode to
401 #define NUM_ILF_RELOCS 8
402 #define NUM_ILF_SECTIONS 6
403 #define NUM_ILF_SYMS (2 + NUM_ILF_SECTIONS)
405 #define SIZEOF_ILF_SYMS (NUM_ILF_SYMS * sizeof (* vars.sym_cache))
406 #define SIZEOF_ILF_SYM_TABLE (NUM_ILF_SYMS * sizeof (* vars.sym_table))
407 #define SIZEOF_ILF_NATIVE_SYMS (NUM_ILF_SYMS * sizeof (* vars.native_syms))
408 #define SIZEOF_ILF_SYM_PTR_TABLE (NUM_ILF_SYMS * sizeof (* vars.sym_ptr_table))
409 #define SIZEOF_ILF_EXT_SYMS (NUM_ILF_SYMS * sizeof (* vars.esym_table))
410 #define SIZEOF_ILF_RELOCS (NUM_ILF_RELOCS * sizeof (* vars.reltab))
411 #define SIZEOF_ILF_INT_RELOCS (NUM_ILF_RELOCS * sizeof (* vars.int_reltab))
412 #define SIZEOF_ILF_STRINGS (strlen (symbol_name) * 2 + 8 \
413 + 21 + strlen (source_dll) \
414 + NUM_ILF_SECTIONS * 9 \
416 #define SIZEOF_IDATA2 (5 * 4)
418 /* For PEx64 idata4 & 5 have thumb size of 8 bytes. */
419 #ifdef COFF_WITH_pex64
420 #define SIZEOF_IDATA4 (2 * 4)
421 #define SIZEOF_IDATA5 (2 * 4)
423 #define SIZEOF_IDATA4 (1 * 4)
424 #define SIZEOF_IDATA5 (1 * 4)
427 #define SIZEOF_IDATA6 (2 + strlen (symbol_name) + 1 + 1)
428 #define SIZEOF_IDATA7 (strlen (source_dll) + 1 + 1)
429 #define SIZEOF_ILF_SECTIONS (NUM_ILF_SECTIONS * sizeof (struct coff_section_tdata))
431 #define ILF_DATA_SIZE \
433 + SIZEOF_ILF_SYM_TABLE \
434 + SIZEOF_ILF_NATIVE_SYMS \
435 + SIZEOF_ILF_SYM_PTR_TABLE \
436 + SIZEOF_ILF_EXT_SYMS \
437 + SIZEOF_ILF_RELOCS \
438 + SIZEOF_ILF_INT_RELOCS \
439 + SIZEOF_ILF_STRINGS \
445 + SIZEOF_ILF_SECTIONS \
446 + MAX_TEXT_SECTION_SIZE
448 /* Create an empty relocation against the given symbol. */
451 pe_ILF_make_a_symbol_reloc (pe_ILF_vars * vars,
453 bfd_reloc_code_real_type reloc,
454 struct bfd_symbol ** sym,
455 unsigned int sym_index)
458 struct internal_reloc * internal;
460 entry = vars->reltab + vars->relcount;
461 internal = vars->int_reltab + vars->relcount;
463 entry->address = address;
465 entry->howto = bfd_reloc_type_lookup (vars->abfd, reloc);
466 entry->sym_ptr_ptr = sym;
468 internal->r_vaddr = address;
469 internal->r_symndx = sym_index;
470 internal->r_type = entry->howto->type;
474 BFD_ASSERT (vars->relcount <= NUM_ILF_RELOCS);
477 /* Create an empty relocation against the given section. */
480 pe_ILF_make_a_reloc (pe_ILF_vars * vars,
482 bfd_reloc_code_real_type reloc,
485 pe_ILF_make_a_symbol_reloc (vars, address, reloc, sec->symbol_ptr_ptr,
486 coff_section_data (vars->abfd, sec)->i);
489 /* Move the queued relocs into the given section. */
492 pe_ILF_save_relocs (pe_ILF_vars * vars,
495 /* Make sure that there is somewhere to store the internal relocs. */
496 if (coff_section_data (vars->abfd, sec) == NULL)
497 /* We should probably return an error indication here. */
500 coff_section_data (vars->abfd, sec)->relocs = vars->int_reltab;
501 coff_section_data (vars->abfd, sec)->keep_relocs = TRUE;
503 sec->relocation = vars->reltab;
504 sec->reloc_count = vars->relcount;
505 sec->flags |= SEC_RELOC;
507 vars->reltab += vars->relcount;
508 vars->int_reltab += vars->relcount;
511 BFD_ASSERT ((bfd_byte *) vars->int_reltab < (bfd_byte *) vars->string_table);
514 /* Create a global symbol and add it to the relevant tables. */
517 pe_ILF_make_a_symbol (pe_ILF_vars * vars,
519 const char * symbol_name,
520 asection_ptr section,
521 flagword extra_flags)
523 coff_symbol_type * sym;
524 combined_entry_type * ent;
526 unsigned short sclass;
528 if (extra_flags & BSF_LOCAL)
534 if (vars->magic == THUMBPEMAGIC)
536 if (extra_flags & BSF_FUNCTION)
537 sclass = C_THUMBEXTFUNC;
538 else if (extra_flags & BSF_LOCAL)
539 sclass = C_THUMBSTAT;
545 BFD_ASSERT (vars->sym_index < NUM_ILF_SYMS);
548 ent = vars->native_ptr;
549 esym = vars->esym_ptr;
551 /* Copy the symbol's name into the string table. */
552 sprintf (vars->string_ptr, "%s%s", prefix, symbol_name);
555 section = bfd_und_section_ptr;
557 /* Initialise the external symbol. */
558 H_PUT_32 (vars->abfd, vars->string_ptr - vars->string_table,
560 H_PUT_16 (vars->abfd, section->target_index, esym->e_scnum);
561 esym->e_sclass[0] = sclass;
563 /* The following initialisations are unnecessary - the memory is
564 zero initialised. They are just kept here as reminders. */
566 /* Initialise the internal symbol structure. */
567 ent->u.syment.n_sclass = sclass;
568 ent->u.syment.n_scnum = section->target_index;
569 ent->u.syment._n._n_n._n_offset = (bfd_hostptr_t) sym;
571 sym->symbol.the_bfd = vars->abfd;
572 sym->symbol.name = vars->string_ptr;
573 sym->symbol.flags = BSF_EXPORT | BSF_GLOBAL | extra_flags;
574 sym->symbol.section = section;
577 * vars->table_ptr = vars->sym_index;
578 * vars->sym_ptr_ptr = sym;
580 /* Adjust pointers for the next symbol. */
583 vars->sym_ptr_ptr ++;
587 vars->string_ptr += strlen (symbol_name) + strlen (prefix) + 1;
589 BFD_ASSERT (vars->string_ptr < vars->end_string_ptr);
592 /* Create a section. */
595 pe_ILF_make_a_section (pe_ILF_vars * vars,
598 flagword extra_flags)
603 sec = bfd_make_section_old_way (vars->abfd, name);
607 flags = SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_KEEP | SEC_IN_MEMORY;
609 bfd_set_section_flags (vars->abfd, sec, flags | extra_flags);
611 (void) bfd_set_section_alignment (vars->abfd, sec, 2);
613 /* Check that we will not run out of space. */
614 BFD_ASSERT (vars->data + size < vars->bim->buffer + vars->bim->size);
616 /* Set the section size and contents. The actual
617 contents are filled in by our parent. */
618 bfd_set_section_size (vars->abfd, sec, (bfd_size_type) size);
619 sec->contents = vars->data;
620 sec->target_index = vars->sec_index ++;
622 /* Advance data pointer in the vars structure. */
625 /* Skip the padding byte if it was not needed.
626 The logic here is that if the string length is odd,
627 then the entire string length, including the null byte,
628 is even and so the extra, padding byte, is not needed. */
632 /* Create a coff_section_tdata structure for our use. */
633 sec->used_by_bfd = (struct coff_section_tdata *) vars->data;
634 vars->data += sizeof (struct coff_section_tdata);
636 BFD_ASSERT (vars->data <= vars->bim->buffer + vars->bim->size);
638 /* Create a symbol to refer to this section. */
639 pe_ILF_make_a_symbol (vars, "", name, sec, BSF_LOCAL);
641 /* Cache the index to the symbol in the coff_section_data structure. */
642 coff_section_data (vars->abfd, sec)->i = vars->sym_index - 1;
647 /* This structure contains the code that goes into the .text section
648 in order to perform a jump into the DLL lookup table. The entries
649 in the table are index by the magic number used to represent the
650 machine type in the PE file. The contents of the data[] arrays in
651 these entries are stolen from the jtab[] arrays in ld/pe-dll.c.
652 The SIZE field says how many bytes in the DATA array are actually
653 used. The OFFSET field says where in the data array the address
654 of the .idata$5 section should be placed. */
655 #define MAX_TEXT_SECTION_SIZE 32
659 unsigned short magic;
660 unsigned char data[MAX_TEXT_SECTION_SIZE];
666 static jump_table jtab[] =
670 { 0xff, 0x25, 0x00, 0x00, 0x00, 0x00, 0x90, 0x90 },
677 { 0xff, 0x25, 0x00, 0x00, 0x00, 0x00, 0x90, 0x90 },
684 { /* XXX fill me in */ },
689 #ifdef MIPS_ARCH_MAGIC_WINCE
690 { MIPS_ARCH_MAGIC_WINCE,
691 { 0x00, 0x00, 0x08, 0x3c, 0x00, 0x00, 0x08, 0x8d,
692 0x08, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00 },
697 #ifdef SH_ARCH_MAGIC_WINCE
698 { SH_ARCH_MAGIC_WINCE,
699 { 0x01, 0xd0, 0x02, 0x60, 0x2b, 0x40,
700 0x09, 0x00, 0x00, 0x00, 0x00, 0x00 },
707 { 0x00, 0xc0, 0x9f, 0xe5, 0x00, 0xf0,
708 0x9c, 0xe5, 0x00, 0x00, 0x00, 0x00},
715 { 0x40, 0xb4, 0x02, 0x4e, 0x36, 0x68, 0xb4, 0x46,
716 0x40, 0xbc, 0x60, 0x47, 0x00, 0x00, 0x00, 0x00 },
724 #define NUM_ENTRIES(a) (sizeof (a) / sizeof (a)[0])
727 /* Build a full BFD from the information supplied in a ILF object. */
730 pe_ILF_build_a_bfd (bfd * abfd,
734 unsigned int ordinal,
739 struct internal_filehdr internal_f;
740 unsigned int import_type;
741 unsigned int import_name_type;
742 asection_ptr id4, id5, id6 = NULL, text = NULL;
743 coff_symbol_type ** imp_sym;
744 unsigned int imp_index;
746 /* Decode and verify the types field of the ILF structure. */
747 import_type = types & 0x3;
748 import_name_type = (types & 0x1c) >> 2;
757 /* XXX code yet to be written. */
758 _bfd_error_handler (_("%B: Unhandled import type; %x"),
763 _bfd_error_handler (_("%B: Unrecognised import type; %x"),
768 switch (import_name_type)
772 case IMPORT_NAME_NOPREFIX:
773 case IMPORT_NAME_UNDECORATE:
777 _bfd_error_handler (_("%B: Unrecognised import name type; %x"),
778 abfd, import_name_type);
782 /* Initialise local variables.
784 Note these are kept in a structure rather than being
785 declared as statics since bfd frowns on global variables.
787 We are going to construct the contents of the BFD in memory,
788 so allocate all the space that we will need right now. */
790 = (struct bfd_in_memory *) bfd_malloc ((bfd_size_type) sizeof (*vars.bim));
791 if (vars.bim == NULL)
794 ptr = (bfd_byte *) bfd_zmalloc ((bfd_size_type) ILF_DATA_SIZE);
795 vars.bim->buffer = ptr;
796 vars.bim->size = ILF_DATA_SIZE;
800 /* Initialise the pointers to regions of the memory and the
801 other contents of the pe_ILF_vars structure as well. */
802 vars.sym_cache = (coff_symbol_type *) ptr;
803 vars.sym_ptr = (coff_symbol_type *) ptr;
805 ptr += SIZEOF_ILF_SYMS;
807 vars.sym_table = (unsigned int *) ptr;
808 vars.table_ptr = (unsigned int *) ptr;
809 ptr += SIZEOF_ILF_SYM_TABLE;
811 vars.native_syms = (combined_entry_type *) ptr;
812 vars.native_ptr = (combined_entry_type *) ptr;
813 ptr += SIZEOF_ILF_NATIVE_SYMS;
815 vars.sym_ptr_table = (coff_symbol_type **) ptr;
816 vars.sym_ptr_ptr = (coff_symbol_type **) ptr;
817 ptr += SIZEOF_ILF_SYM_PTR_TABLE;
819 vars.esym_table = (SYMENT *) ptr;
820 vars.esym_ptr = (SYMENT *) ptr;
821 ptr += SIZEOF_ILF_EXT_SYMS;
823 vars.reltab = (arelent *) ptr;
825 ptr += SIZEOF_ILF_RELOCS;
827 vars.int_reltab = (struct internal_reloc *) ptr;
828 ptr += SIZEOF_ILF_INT_RELOCS;
830 vars.string_table = (char *) ptr;
831 vars.string_ptr = (char *) ptr + STRING_SIZE_SIZE;
832 ptr += SIZEOF_ILF_STRINGS;
833 vars.end_string_ptr = (char *) ptr;
835 /* The remaining space in bim->buffer is used
836 by the pe_ILF_make_a_section() function. */
842 /* Create the initial .idata$<n> sections:
843 [.idata$2: Import Directory Table -- not needed]
844 .idata$4: Import Lookup Table
845 .idata$5: Import Address Table
847 Note we do not create a .idata$3 section as this is
848 created for us by the linker script. */
849 id4 = pe_ILF_make_a_section (& vars, ".idata$4", SIZEOF_IDATA4, 0);
850 id5 = pe_ILF_make_a_section (& vars, ".idata$5", SIZEOF_IDATA5, 0);
851 if (id4 == NULL || id5 == NULL)
854 /* Fill in the contents of these sections. */
855 if (import_name_type == IMPORT_ORDINAL)
858 /* XXX - treat as IMPORT_NAME ??? */
861 #ifdef COFF_WITH_pex64
862 ((unsigned int *) id4->contents)[0] = ordinal;
863 ((unsigned int *) id4->contents)[1] = 0x80000000;
864 ((unsigned int *) id5->contents)[0] = ordinal;
865 ((unsigned int *) id5->contents)[1] = 0x80000000;
867 * (unsigned int *) id4->contents = ordinal | 0x80000000;
868 * (unsigned int *) id5->contents = ordinal | 0x80000000;
876 /* Create .idata$6 - the Hint Name Table. */
877 id6 = pe_ILF_make_a_section (& vars, ".idata$6", SIZEOF_IDATA6, 0);
881 /* If necessary, trim the import symbol name. */
882 symbol = symbol_name;
884 /* As used by MS compiler, '_', '@', and '?' are alternative
885 forms of USER_LABEL_PREFIX, with '?' for c++ mangled names,
886 '@' used for fastcall (in C), '_' everywhere else. Only one
887 of these is used for a symbol. We strip this leading char for
888 IMPORT_NAME_NOPREFIX and IMPORT_NAME_UNDECORATE as per the
889 PE COFF 6.0 spec (section 8.3, Import Name Type). */
891 if (import_name_type != IMPORT_NAME)
895 /* Check that we don't remove for targets with empty
896 USER_LABEL_PREFIX the leading underscore. */
897 if ((c == '_' && abfd->xvec->symbol_leading_char != 0)
898 || c == '@' || c == '?')
902 len = strlen (symbol);
903 if (import_name_type == IMPORT_NAME_UNDECORATE)
905 /* Truncate at the first '@'. */
906 char *at = strchr (symbol, '@');
912 id6->contents[0] = ordinal & 0xff;
913 id6->contents[1] = ordinal >> 8;
915 memcpy ((char *) id6->contents + 2, symbol, len);
916 id6->contents[len + 2] = '\0';
919 if (import_name_type != IMPORT_ORDINAL)
921 pe_ILF_make_a_reloc (&vars, (bfd_vma) 0, BFD_RELOC_RVA, id6);
922 pe_ILF_save_relocs (&vars, id4);
924 pe_ILF_make_a_reloc (&vars, (bfd_vma) 0, BFD_RELOC_RVA, id6);
925 pe_ILF_save_relocs (&vars, id5);
928 /* Create extra sections depending upon the type of import we are dealing with. */
934 /* Create a .text section.
935 First we need to look up its contents in the jump table. */
936 for (i = NUM_ENTRIES (jtab); i--;)
938 if (jtab[i].size == 0)
940 if (jtab[i].magic == magic)
943 /* If we did not find a matching entry something is wrong. */
947 /* Create the .text section. */
948 text = pe_ILF_make_a_section (& vars, ".text", jtab[i].size, SEC_CODE);
952 /* Copy in the jump code. */
953 memcpy (text->contents, jtab[i].data, jtab[i].size);
955 /* Create an import symbol. */
956 pe_ILF_make_a_symbol (& vars, "__imp_", symbol_name, id5, 0);
957 imp_sym = vars.sym_ptr_ptr - 1;
958 imp_index = vars.sym_index - 1;
960 /* Create a reloc for the data in the text section. */
961 #ifdef MIPS_ARCH_MAGIC_WINCE
962 if (magic == MIPS_ARCH_MAGIC_WINCE)
964 pe_ILF_make_a_symbol_reloc (&vars, (bfd_vma) 0, BFD_RELOC_HI16_S,
965 (struct bfd_symbol **) imp_sym,
967 pe_ILF_make_a_reloc (&vars, (bfd_vma) 0, BFD_RELOC_LO16, text);
968 pe_ILF_make_a_symbol_reloc (&vars, (bfd_vma) 4, BFD_RELOC_LO16,
969 (struct bfd_symbol **) imp_sym,
974 pe_ILF_make_a_symbol_reloc (&vars, (bfd_vma) jtab[i].offset,
975 BFD_RELOC_32, (asymbol **) imp_sym,
978 pe_ILF_save_relocs (& vars, text);
985 /* XXX code not yet written. */
989 /* Initialise the bfd. */
990 memset (& internal_f, 0, sizeof (internal_f));
992 internal_f.f_magic = magic;
993 internal_f.f_symptr = 0;
994 internal_f.f_nsyms = 0;
995 internal_f.f_flags = F_AR32WR | F_LNNO; /* XXX is this correct ? */
997 if ( ! bfd_set_start_address (abfd, (bfd_vma) 0)
998 || ! bfd_coff_set_arch_mach_hook (abfd, & internal_f))
1001 if (bfd_coff_mkobject_hook (abfd, (void *) & internal_f, NULL) == NULL)
1004 coff_data (abfd)->pe = 1;
1006 if (vars.magic == THUMBPEMAGIC)
1007 /* Stop some linker warnings about thumb code not supporting interworking. */
1008 coff_data (abfd)->flags |= F_INTERWORK | F_INTERWORK_SET;
1011 /* Switch from file contents to memory contents. */
1012 bfd_cache_close (abfd);
1014 abfd->iostream = (void *) vars.bim;
1015 abfd->flags |= BFD_IN_MEMORY /* | HAS_LOCALS */;
1016 abfd->iovec = &_bfd_memory_iovec;
1019 obj_sym_filepos (abfd) = 0;
1021 /* Now create a symbol describing the imported value. */
1022 switch (import_type)
1025 pe_ILF_make_a_symbol (& vars, "", symbol_name, text,
1026 BSF_NOT_AT_END | BSF_FUNCTION);
1028 /* Create an import symbol for the DLL, without the
1030 ptr = (bfd_byte *) strrchr (source_dll, '.');
1033 pe_ILF_make_a_symbol (& vars, "__IMPORT_DESCRIPTOR_", source_dll, NULL, 0);
1039 /* Nothing to do here. */
1043 /* XXX code not yet written. */
1047 /* Point the bfd at the symbol table. */
1048 obj_symbols (abfd) = vars.sym_cache;
1049 bfd_get_symcount (abfd) = vars.sym_index;
1051 obj_raw_syments (abfd) = vars.native_syms;
1052 obj_raw_syment_count (abfd) = vars.sym_index;
1054 obj_coff_external_syms (abfd) = (void *) vars.esym_table;
1055 obj_coff_keep_syms (abfd) = TRUE;
1057 obj_convert (abfd) = vars.sym_table;
1058 obj_conv_table_size (abfd) = vars.sym_index;
1060 obj_coff_strings (abfd) = vars.string_table;
1061 obj_coff_keep_strings (abfd) = TRUE;
1063 abfd->flags |= HAS_SYMS;
1068 if (vars.bim->buffer != NULL)
1069 free (vars.bim->buffer);
1074 /* We have detected a Image Library Format archive element.
1075 Decode the element and return the appropriate target. */
1077 static const bfd_target *
1078 pe_ILF_object_p (bfd * abfd)
1080 bfd_byte buffer[14];
1084 unsigned int machine;
1086 unsigned int ordinal;
1090 /* Upon entry the first six bytes of the ILF header have
1091 already been read. Now read the rest of the header. */
1092 if (bfd_bread (buffer, (bfd_size_type) 14, abfd) != 14)
1097 machine = H_GET_16 (abfd, ptr);
1100 /* Check that the machine type is recognised. */
1105 case IMAGE_FILE_MACHINE_UNKNOWN:
1106 case IMAGE_FILE_MACHINE_ALPHA:
1107 case IMAGE_FILE_MACHINE_ALPHA64:
1108 case IMAGE_FILE_MACHINE_IA64:
1111 case IMAGE_FILE_MACHINE_I386:
1117 case IMAGE_FILE_MACHINE_AMD64:
1123 case IMAGE_FILE_MACHINE_M68K:
1129 case IMAGE_FILE_MACHINE_R3000:
1130 case IMAGE_FILE_MACHINE_R4000:
1131 case IMAGE_FILE_MACHINE_R10000:
1133 case IMAGE_FILE_MACHINE_MIPS16:
1134 case IMAGE_FILE_MACHINE_MIPSFPU:
1135 case IMAGE_FILE_MACHINE_MIPSFPU16:
1136 #ifdef MIPS_ARCH_MAGIC_WINCE
1137 magic = MIPS_ARCH_MAGIC_WINCE;
1141 case IMAGE_FILE_MACHINE_SH3:
1142 case IMAGE_FILE_MACHINE_SH4:
1143 #ifdef SH_ARCH_MAGIC_WINCE
1144 magic = SH_ARCH_MAGIC_WINCE;
1148 case IMAGE_FILE_MACHINE_ARM:
1154 case IMAGE_FILE_MACHINE_THUMB:
1157 extern const bfd_target TARGET_LITTLE_SYM;
1159 if (abfd->xvec == & TARGET_LITTLE_SYM)
1160 magic = THUMBPEMAGIC;
1165 case IMAGE_FILE_MACHINE_POWERPC:
1166 /* We no longer support PowerPC. */
1169 (_("%B: Unrecognised machine type (0x%x)"
1170 " in Import Library Format archive"),
1172 bfd_set_error (bfd_error_malformed_archive);
1181 (_("%B: Recognised but unhandled machine type (0x%x)"
1182 " in Import Library Format archive"),
1184 bfd_set_error (bfd_error_wrong_format);
1189 /* We do not bother to check the date.
1190 date = H_GET_32 (abfd, ptr); */
1193 size = H_GET_32 (abfd, ptr);
1199 (_("%B: size field is zero in Import Library Format header"), abfd);
1200 bfd_set_error (bfd_error_malformed_archive);
1205 ordinal = H_GET_16 (abfd, ptr);
1208 types = H_GET_16 (abfd, ptr);
1211 /* Now read in the two strings that follow. */
1212 ptr = (bfd_byte *) bfd_alloc (abfd, size);
1216 if (bfd_bread (ptr, size, abfd) != size)
1218 bfd_release (abfd, ptr);
1222 symbol_name = (char *) ptr;
1223 source_dll = symbol_name + strlen (symbol_name) + 1;
1225 /* Verify that the strings are null terminated. */
1226 if (ptr[size - 1] != 0
1227 || (bfd_size_type) ((bfd_byte *) source_dll - ptr) >= size)
1230 (_("%B: string not null terminated in ILF object file."), abfd);
1231 bfd_set_error (bfd_error_malformed_archive);
1232 bfd_release (abfd, ptr);
1236 /* Now construct the bfd. */
1237 if (! pe_ILF_build_a_bfd (abfd, magic, symbol_name,
1238 source_dll, ordinal, types))
1240 bfd_release (abfd, ptr);
1247 static const bfd_target *
1248 pe_bfd_object_p (bfd * abfd)
1251 struct external_PEI_DOS_hdr dos_hdr;
1252 struct external_PEI_IMAGE_hdr image_hdr;
1253 struct internal_filehdr internal_f;
1254 struct internal_aouthdr internal_a;
1255 file_ptr opt_hdr_size;
1258 /* Detect if this a Microsoft Import Library Format element. */
1259 /* First read the beginning of the header. */
1260 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0
1261 || bfd_bread (buffer, (bfd_size_type) 6, abfd) != 6)
1263 if (bfd_get_error () != bfd_error_system_call)
1264 bfd_set_error (bfd_error_wrong_format);
1268 /* Then check the magic and the version (only 0 is supported). */
1269 if (H_GET_32 (abfd, buffer) == 0xffff0000
1270 && H_GET_16 (abfd, buffer + 4) == 0)
1271 return pe_ILF_object_p (abfd);
1273 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0
1274 || bfd_bread (&dos_hdr, (bfd_size_type) sizeof (dos_hdr), abfd)
1275 != sizeof (dos_hdr))
1277 if (bfd_get_error () != bfd_error_system_call)
1278 bfd_set_error (bfd_error_wrong_format);
1282 /* There are really two magic numbers involved; the magic number
1283 that says this is a NT executable (PEI) and the magic number that
1284 determines the architecture. The former is DOSMAGIC, stored in
1285 the e_magic field. The latter is stored in the f_magic field.
1286 If the NT magic number isn't valid, the architecture magic number
1287 could be mimicked by some other field (specifically, the number
1288 of relocs in section 3). Since this routine can only be called
1289 correctly for a PEI file, check the e_magic number here, and, if
1290 it doesn't match, clobber the f_magic number so that we don't get
1292 if (H_GET_16 (abfd, dos_hdr.e_magic) != DOSMAGIC)
1294 bfd_set_error (bfd_error_wrong_format);
1298 offset = H_GET_32 (abfd, dos_hdr.e_lfanew);
1299 if (bfd_seek (abfd, offset, SEEK_SET) != 0
1300 || (bfd_bread (&image_hdr, (bfd_size_type) sizeof (image_hdr), abfd)
1301 != sizeof (image_hdr)))
1303 if (bfd_get_error () != bfd_error_system_call)
1304 bfd_set_error (bfd_error_wrong_format);
1308 if (H_GET_32 (abfd, image_hdr.nt_signature) != 0x4550)
1310 bfd_set_error (bfd_error_wrong_format);
1314 /* Swap file header, so that we get the location for calling
1316 bfd_coff_swap_filehdr_in (abfd, (PTR)&image_hdr, &internal_f);
1318 if (! bfd_coff_bad_format_hook (abfd, &internal_f)
1319 || internal_f.f_opthdr > bfd_coff_aoutsz (abfd))
1321 bfd_set_error (bfd_error_wrong_format);
1325 /* Read the optional header, which has variable size. */
1326 opt_hdr_size = internal_f.f_opthdr;
1328 if (opt_hdr_size != 0)
1332 opthdr = bfd_alloc (abfd, opt_hdr_size);
1335 if (bfd_bread (opthdr, opt_hdr_size, abfd)
1336 != (bfd_size_type) opt_hdr_size)
1339 bfd_coff_swap_aouthdr_in (abfd, opthdr, (PTR) & internal_a);
1342 return coff_real_object_p (abfd, internal_f.f_nscns, &internal_f,
1345 : (struct internal_aouthdr *) NULL));
1348 #define coff_object_p pe_bfd_object_p
1349 #endif /* COFF_IMAGE_WITH_PE */