diff options
Diffstat (limited to 'binutils-2.24/bfd/peicode.h')
| -rw-r--r-- | binutils-2.24/bfd/peicode.h | 1350 |
1 files changed, 0 insertions, 1350 deletions
diff --git a/binutils-2.24/bfd/peicode.h b/binutils-2.24/bfd/peicode.h deleted file mode 100644 index 64ca0929..00000000 --- a/binutils-2.24/bfd/peicode.h +++ /dev/null @@ -1,1350 +0,0 @@ -/* Support for the generic parts of PE/PEI, for BFD. - Copyright 1995-2013 Free Software Foundation, Inc. - Written by Cygnus Solutions. - - This file is part of BFD, the Binary File Descriptor library. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 3 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, - MA 02110-1301, USA. */ - - -/* Most of this hacked by Steve Chamberlain, - sac@cygnus.com - - PE/PEI rearrangement (and code added): Donn Terry - Softway Systems, Inc. */ - -/* Hey look, some documentation [and in a place you expect to find it]! - - The main reference for the pei format is "Microsoft Portable Executable - and Common Object File Format Specification 4.1". Get it if you need to - do some serious hacking on this code. - - Another reference: - "Peering Inside the PE: A Tour of the Win32 Portable Executable - File Format", MSJ 1994, Volume 9. - - The *sole* difference between the pe format and the pei format is that the - latter has an MSDOS 2.0 .exe header on the front that prints the message - "This app must be run under Windows." (or some such). - (FIXME: Whether that statement is *really* true or not is unknown. - Are there more subtle differences between pe and pei formats? - For now assume there aren't. If you find one, then for God sakes - document it here!) - - The Microsoft docs use the word "image" instead of "executable" because - the former can also refer to a DLL (shared library). Confusion can arise - because the `i' in `pei' also refers to "image". The `pe' format can - also create images (i.e. executables), it's just that to run on a win32 - system you need to use the pei format. - - FIXME: Please add more docs here so the next poor fool that has to hack - on this code has a chance of getting something accomplished without - wasting too much time. */ - -#include "libpei.h" - -static bfd_boolean (*pe_saved_coff_bfd_print_private_bfd_data) (bfd *, void *) = -#ifndef coff_bfd_print_private_bfd_data - NULL; -#else - coff_bfd_print_private_bfd_data; -#undef coff_bfd_print_private_bfd_data -#endif - -static bfd_boolean pe_print_private_bfd_data (bfd *, void *); -#define coff_bfd_print_private_bfd_data pe_print_private_bfd_data - -static bfd_boolean (*pe_saved_coff_bfd_copy_private_bfd_data) (bfd *, bfd *) = -#ifndef coff_bfd_copy_private_bfd_data - NULL; -#else - coff_bfd_copy_private_bfd_data; -#undef coff_bfd_copy_private_bfd_data -#endif - -static bfd_boolean pe_bfd_copy_private_bfd_data (bfd *, bfd *); -#define coff_bfd_copy_private_bfd_data pe_bfd_copy_private_bfd_data - -#define coff_mkobject pe_mkobject -#define coff_mkobject_hook pe_mkobject_hook - -#ifdef COFF_IMAGE_WITH_PE -/* This structure contains static variables used by the ILF code. */ -typedef asection * asection_ptr; - -typedef struct -{ - bfd * abfd; - bfd_byte * data; - struct bfd_in_memory * bim; - unsigned short magic; - - arelent * reltab; - unsigned int relcount; - - coff_symbol_type * sym_cache; - coff_symbol_type * sym_ptr; - unsigned int sym_index; - - unsigned int * sym_table; - unsigned int * table_ptr; - - combined_entry_type * native_syms; - combined_entry_type * native_ptr; - - coff_symbol_type ** sym_ptr_table; - coff_symbol_type ** sym_ptr_ptr; - - unsigned int sec_index; - - char * string_table; - char * string_ptr; - char * end_string_ptr; - - SYMENT * esym_table; - SYMENT * esym_ptr; - - struct internal_reloc * int_reltab; -} -pe_ILF_vars; -#endif /* COFF_IMAGE_WITH_PE */ - -const bfd_target *coff_real_object_p - (bfd *, unsigned, struct internal_filehdr *, struct internal_aouthdr *); - -#ifndef NO_COFF_RELOCS -static void -coff_swap_reloc_in (bfd * abfd, void * src, void * dst) -{ - RELOC *reloc_src = (RELOC *) src; - struct internal_reloc *reloc_dst = (struct internal_reloc *) dst; - - reloc_dst->r_vaddr = H_GET_32 (abfd, reloc_src->r_vaddr); - reloc_dst->r_symndx = H_GET_S32 (abfd, reloc_src->r_symndx); - reloc_dst->r_type = H_GET_16 (abfd, reloc_src->r_type); -#ifdef SWAP_IN_RELOC_OFFSET - reloc_dst->r_offset = SWAP_IN_RELOC_OFFSET (abfd, reloc_src->r_offset); -#endif -} - -static unsigned int -coff_swap_reloc_out (bfd * abfd, void * src, void * dst) -{ - struct internal_reloc *reloc_src = (struct internal_reloc *) src; - struct external_reloc *reloc_dst = (struct external_reloc *) dst; - - H_PUT_32 (abfd, reloc_src->r_vaddr, reloc_dst->r_vaddr); - H_PUT_32 (abfd, reloc_src->r_symndx, reloc_dst->r_symndx); - H_PUT_16 (abfd, reloc_src->r_type, reloc_dst->r_type); - -#ifdef SWAP_OUT_RELOC_OFFSET - SWAP_OUT_RELOC_OFFSET (abfd, reloc_src->r_offset, reloc_dst->r_offset); -#endif -#ifdef SWAP_OUT_RELOC_EXTRA - SWAP_OUT_RELOC_EXTRA (abfd, reloc_src, reloc_dst); -#endif - return RELSZ; -} -#endif /* not NO_COFF_RELOCS */ - -#ifdef COFF_IMAGE_WITH_PE -#undef FILHDR -#define FILHDR struct external_PEI_IMAGE_hdr -#endif - -static void -coff_swap_filehdr_in (bfd * abfd, void * src, void * dst) -{ - FILHDR *filehdr_src = (FILHDR *) src; - struct internal_filehdr *filehdr_dst = (struct internal_filehdr *) dst; - - filehdr_dst->f_magic = H_GET_16 (abfd, filehdr_src->f_magic); - filehdr_dst->f_nscns = H_GET_16 (abfd, filehdr_src->f_nscns); - filehdr_dst->f_timdat = H_GET_32 (abfd, filehdr_src->f_timdat); - filehdr_dst->f_nsyms = H_GET_32 (abfd, filehdr_src->f_nsyms); - filehdr_dst->f_flags = H_GET_16 (abfd, filehdr_src->f_flags); - filehdr_dst->f_symptr = H_GET_32 (abfd, filehdr_src->f_symptr); - - /* Other people's tools sometimes generate headers with an nsyms but - a zero symptr. */ - if (filehdr_dst->f_nsyms != 0 && filehdr_dst->f_symptr == 0) - { - filehdr_dst->f_nsyms = 0; - filehdr_dst->f_flags |= F_LSYMS; - } - - filehdr_dst->f_opthdr = H_GET_16 (abfd, filehdr_src-> f_opthdr); -} - -#ifdef COFF_IMAGE_WITH_PE -# define coff_swap_filehdr_out _bfd_XXi_only_swap_filehdr_out -#elif defined COFF_WITH_pex64 -# define coff_swap_filehdr_out _bfd_pex64_only_swap_filehdr_out -#elif defined COFF_WITH_pep -# define coff_swap_filehdr_out _bfd_pep_only_swap_filehdr_out -#else -# define coff_swap_filehdr_out _bfd_pe_only_swap_filehdr_out -#endif - -static void -coff_swap_scnhdr_in (bfd * abfd, void * ext, void * in) -{ - SCNHDR *scnhdr_ext = (SCNHDR *) ext; - struct internal_scnhdr *scnhdr_int = (struct internal_scnhdr *) in; - - memcpy (scnhdr_int->s_name, scnhdr_ext->s_name, sizeof (scnhdr_int->s_name)); - - scnhdr_int->s_vaddr = GET_SCNHDR_VADDR (abfd, scnhdr_ext->s_vaddr); - scnhdr_int->s_paddr = GET_SCNHDR_PADDR (abfd, scnhdr_ext->s_paddr); - scnhdr_int->s_size = GET_SCNHDR_SIZE (abfd, scnhdr_ext->s_size); - scnhdr_int->s_scnptr = GET_SCNHDR_SCNPTR (abfd, scnhdr_ext->s_scnptr); - scnhdr_int->s_relptr = GET_SCNHDR_RELPTR (abfd, scnhdr_ext->s_relptr); - scnhdr_int->s_lnnoptr = GET_SCNHDR_LNNOPTR (abfd, scnhdr_ext->s_lnnoptr); - scnhdr_int->s_flags = H_GET_32 (abfd, scnhdr_ext->s_flags); - - /* MS handles overflow of line numbers by carrying into the reloc - field (it appears). Since it's supposed to be zero for PE - *IMAGE* format, that's safe. This is still a bit iffy. */ -#ifdef COFF_IMAGE_WITH_PE - scnhdr_int->s_nlnno = (H_GET_16 (abfd, scnhdr_ext->s_nlnno) - + (H_GET_16 (abfd, scnhdr_ext->s_nreloc) << 16)); - scnhdr_int->s_nreloc = 0; -#else - scnhdr_int->s_nreloc = H_GET_16 (abfd, scnhdr_ext->s_nreloc); - scnhdr_int->s_nlnno = H_GET_16 (abfd, scnhdr_ext->s_nlnno); -#endif - - if (scnhdr_int->s_vaddr != 0) - { - scnhdr_int->s_vaddr += pe_data (abfd)->pe_opthdr.ImageBase; - /* Do not cut upper 32-bits for 64-bit vma. */ -#ifndef COFF_WITH_pex64 - scnhdr_int->s_vaddr &= 0xffffffff; -#endif - } - -#ifndef COFF_NO_HACK_SCNHDR_SIZE - /* If this section holds uninitialized data and is from an object file - or from an executable image that has not initialized the field, - or if the image is an executable file and the physical size is padded, - use the virtual size (stored in s_paddr) instead. */ - if (scnhdr_int->s_paddr > 0 - && (((scnhdr_int->s_flags & IMAGE_SCN_CNT_UNINITIALIZED_DATA) != 0 - && (! bfd_pei_p (abfd) || scnhdr_int->s_size == 0)) - || (bfd_pei_p (abfd) && (scnhdr_int->s_size > scnhdr_int->s_paddr)))) - /* This code used to set scnhdr_int->s_paddr to 0. However, - coff_set_alignment_hook stores s_paddr in virt_size, which - only works if it correctly holds the virtual size of the - section. */ - scnhdr_int->s_size = scnhdr_int->s_paddr; -#endif -} - -static bfd_boolean -pe_mkobject (bfd * abfd) -{ - pe_data_type *pe; - bfd_size_type amt = sizeof (pe_data_type); - - abfd->tdata.pe_obj_data = (struct pe_tdata *) bfd_zalloc (abfd, amt); - - if (abfd->tdata.pe_obj_data == 0) - return FALSE; - - pe = pe_data (abfd); - - pe->coff.pe = 1; - - /* in_reloc_p is architecture dependent. */ - pe->in_reloc_p = in_reloc_p; - - return TRUE; -} - -/* Create the COFF backend specific information. */ - -static void * -pe_mkobject_hook (bfd * abfd, - void * filehdr, - void * aouthdr ATTRIBUTE_UNUSED) -{ - struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; - pe_data_type *pe; - - if (! pe_mkobject (abfd)) - return NULL; - - pe = pe_data (abfd); - pe->coff.sym_filepos = internal_f->f_symptr; - /* These members communicate important constants about the symbol - table to GDB's symbol-reading code. These `constants' - unfortunately vary among coff implementations... */ - pe->coff.local_n_btmask = N_BTMASK; - pe->coff.local_n_btshft = N_BTSHFT; - pe->coff.local_n_tmask = N_TMASK; - pe->coff.local_n_tshift = N_TSHIFT; - pe->coff.local_symesz = SYMESZ; - pe->coff.local_auxesz = AUXESZ; - pe->coff.local_linesz = LINESZ; - - pe->coff.timestamp = internal_f->f_timdat; - - obj_raw_syment_count (abfd) = - obj_conv_table_size (abfd) = - internal_f->f_nsyms; - - pe->real_flags = internal_f->f_flags; - - if ((internal_f->f_flags & F_DLL) != 0) - pe->dll = 1; - - if ((internal_f->f_flags & IMAGE_FILE_DEBUG_STRIPPED) == 0) - abfd->flags |= HAS_DEBUG; - -#ifdef COFF_IMAGE_WITH_PE - if (aouthdr) - pe->pe_opthdr = ((struct internal_aouthdr *) aouthdr)->pe; -#endif - -#ifdef ARM - if (! _bfd_coff_arm_set_private_flags (abfd, internal_f->f_flags)) - coff_data (abfd) ->flags = 0; -#endif - - return (void *) pe; -} - -static bfd_boolean -pe_print_private_bfd_data (bfd *abfd, void * vfile) -{ - FILE *file = (FILE *) vfile; - - if (!_bfd_XX_print_private_bfd_data_common (abfd, vfile)) - return FALSE; - - if (pe_saved_coff_bfd_print_private_bfd_data == NULL) - return TRUE; - - fputc ('\n', file); - - return pe_saved_coff_bfd_print_private_bfd_data (abfd, vfile); -} - -/* Copy any private info we understand from the input bfd - to the output bfd. */ - -static bfd_boolean -pe_bfd_copy_private_bfd_data (bfd *ibfd, bfd *obfd) -{ - /* PR binutils/716: Copy the large address aware flag. - XXX: Should we be copying other flags or other fields in the pe_data() - structure ? */ - if (pe_data (obfd) != NULL - && pe_data (ibfd) != NULL - && pe_data (ibfd)->real_flags & IMAGE_FILE_LARGE_ADDRESS_AWARE) - pe_data (obfd)->real_flags |= IMAGE_FILE_LARGE_ADDRESS_AWARE; - - if (!_bfd_XX_bfd_copy_private_bfd_data_common (ibfd, obfd)) - return FALSE; - - if (pe_saved_coff_bfd_copy_private_bfd_data) - return pe_saved_coff_bfd_copy_private_bfd_data (ibfd, obfd); - - return TRUE; -} - -#define coff_bfd_copy_private_section_data \ - _bfd_XX_bfd_copy_private_section_data - -#define coff_get_symbol_info _bfd_XX_get_symbol_info - -#ifdef COFF_IMAGE_WITH_PE - -/* Code to handle Microsoft's Image Library Format. - Also known as LINK6 format. - Documentation about this format can be found at: - - http://msdn.microsoft.com/library/specs/pecoff_section8.htm */ - -/* The following constants specify the sizes of the various data - structures that we have to create in order to build a bfd describing - an ILF object file. The final "+ 1" in the definitions of SIZEOF_IDATA6 - and SIZEOF_IDATA7 below is to allow for the possibility that we might - need a padding byte in order to ensure 16 bit alignment for the section's - contents. - - The value for SIZEOF_ILF_STRINGS is computed as follows: - - There will be NUM_ILF_SECTIONS section symbols. Allow 9 characters - per symbol for their names (longest section name is .idata$x). - - There will be two symbols for the imported value, one the symbol name - and one with _imp__ prefixed. Allowing for the terminating nul's this - is strlen (symbol_name) * 2 + 8 + 21 + strlen (source_dll). - - The strings in the string table must start STRING__SIZE_SIZE bytes into - the table in order to for the string lookup code in coffgen/coffcode to - work. */ -#define NUM_ILF_RELOCS 8 -#define NUM_ILF_SECTIONS 6 -#define NUM_ILF_SYMS (2 + NUM_ILF_SECTIONS) - -#define SIZEOF_ILF_SYMS (NUM_ILF_SYMS * sizeof (* vars.sym_cache)) -#define SIZEOF_ILF_SYM_TABLE (NUM_ILF_SYMS * sizeof (* vars.sym_table)) -#define SIZEOF_ILF_NATIVE_SYMS (NUM_ILF_SYMS * sizeof (* vars.native_syms)) -#define SIZEOF_ILF_SYM_PTR_TABLE (NUM_ILF_SYMS * sizeof (* vars.sym_ptr_table)) -#define SIZEOF_ILF_EXT_SYMS (NUM_ILF_SYMS * sizeof (* vars.esym_table)) -#define SIZEOF_ILF_RELOCS (NUM_ILF_RELOCS * sizeof (* vars.reltab)) -#define SIZEOF_ILF_INT_RELOCS (NUM_ILF_RELOCS * sizeof (* vars.int_reltab)) -#define SIZEOF_ILF_STRINGS (strlen (symbol_name) * 2 + 8 \ - + 21 + strlen (source_dll) \ - + NUM_ILF_SECTIONS * 9 \ - + STRING_SIZE_SIZE) -#define SIZEOF_IDATA2 (5 * 4) - -/* For PEx64 idata4 & 5 have thumb size of 8 bytes. */ -#ifdef COFF_WITH_pex64 -#define SIZEOF_IDATA4 (2 * 4) -#define SIZEOF_IDATA5 (2 * 4) -#else -#define SIZEOF_IDATA4 (1 * 4) -#define SIZEOF_IDATA5 (1 * 4) -#endif - -#define SIZEOF_IDATA6 (2 + strlen (symbol_name) + 1 + 1) -#define SIZEOF_IDATA7 (strlen (source_dll) + 1 + 1) -#define SIZEOF_ILF_SECTIONS (NUM_ILF_SECTIONS * sizeof (struct coff_section_tdata)) - -#define ILF_DATA_SIZE \ - + SIZEOF_ILF_SYMS \ - + SIZEOF_ILF_SYM_TABLE \ - + SIZEOF_ILF_NATIVE_SYMS \ - + SIZEOF_ILF_SYM_PTR_TABLE \ - + SIZEOF_ILF_EXT_SYMS \ - + SIZEOF_ILF_RELOCS \ - + SIZEOF_ILF_INT_RELOCS \ - + SIZEOF_ILF_STRINGS \ - + SIZEOF_IDATA2 \ - + SIZEOF_IDATA4 \ - + SIZEOF_IDATA5 \ - + SIZEOF_IDATA6 \ - + SIZEOF_IDATA7 \ - + SIZEOF_ILF_SECTIONS \ - + MAX_TEXT_SECTION_SIZE - -/* Create an empty relocation against the given symbol. */ - -static void -pe_ILF_make_a_symbol_reloc (pe_ILF_vars * vars, - bfd_vma address, - bfd_reloc_code_real_type reloc, - struct bfd_symbol ** sym, - unsigned int sym_index) -{ - arelent * entry; - struct internal_reloc * internal; - - entry = vars->reltab + vars->relcount; - internal = vars->int_reltab + vars->relcount; - - entry->address = address; - entry->addend = 0; - entry->howto = bfd_reloc_type_lookup (vars->abfd, reloc); - entry->sym_ptr_ptr = sym; - - internal->r_vaddr = address; - internal->r_symndx = sym_index; - internal->r_type = entry->howto->type; - - vars->relcount ++; - - BFD_ASSERT (vars->relcount <= NUM_ILF_RELOCS); -} - -/* Create an empty relocation against the given section. */ - -static void -pe_ILF_make_a_reloc (pe_ILF_vars * vars, - bfd_vma address, - bfd_reloc_code_real_type reloc, - asection_ptr sec) -{ - pe_ILF_make_a_symbol_reloc (vars, address, reloc, sec->symbol_ptr_ptr, - coff_section_data (vars->abfd, sec)->i); -} - -/* Move the queued relocs into the given section. */ - -static void -pe_ILF_save_relocs (pe_ILF_vars * vars, - asection_ptr sec) -{ - /* Make sure that there is somewhere to store the internal relocs. */ - if (coff_section_data (vars->abfd, sec) == NULL) - /* We should probably return an error indication here. */ - abort (); - - coff_section_data (vars->abfd, sec)->relocs = vars->int_reltab; - coff_section_data (vars->abfd, sec)->keep_relocs = TRUE; - - sec->relocation = vars->reltab; - sec->reloc_count = vars->relcount; - sec->flags |= SEC_RELOC; - - vars->reltab += vars->relcount; - vars->int_reltab += vars->relcount; - vars->relcount = 0; - - BFD_ASSERT ((bfd_byte *) vars->int_reltab < (bfd_byte *) vars->string_table); -} - -/* Create a global symbol and add it to the relevant tables. */ - -static void -pe_ILF_make_a_symbol (pe_ILF_vars * vars, - const char * prefix, - const char * symbol_name, - asection_ptr section, - flagword extra_flags) -{ - coff_symbol_type * sym; - combined_entry_type * ent; - SYMENT * esym; - unsigned short sclass; - - if (extra_flags & BSF_LOCAL) - sclass = C_STAT; - else - sclass = C_EXT; - -#ifdef THUMBPEMAGIC - if (vars->magic == THUMBPEMAGIC) - { - if (extra_flags & BSF_FUNCTION) - sclass = C_THUMBEXTFUNC; - else if (extra_flags & BSF_LOCAL) - sclass = C_THUMBSTAT; - else - sclass = C_THUMBEXT; - } -#endif - - BFD_ASSERT (vars->sym_index < NUM_ILF_SYMS); - - sym = vars->sym_ptr; - ent = vars->native_ptr; - esym = vars->esym_ptr; - - /* Copy the symbol's name into the string table. */ - sprintf (vars->string_ptr, "%s%s", prefix, symbol_name); - - if (section == NULL) - section = bfd_und_section_ptr; - - /* Initialise the external symbol. */ - H_PUT_32 (vars->abfd, vars->string_ptr - vars->string_table, - esym->e.e.e_offset); - H_PUT_16 (vars->abfd, section->target_index, esym->e_scnum); - esym->e_sclass[0] = sclass; - - /* The following initialisations are unnecessary - the memory is - zero initialised. They are just kept here as reminders. */ - - /* Initialise the internal symbol structure. */ - ent->u.syment.n_sclass = sclass; - ent->u.syment.n_scnum = section->target_index; - ent->u.syment._n._n_n._n_offset = (bfd_hostptr_t) sym; - - sym->symbol.the_bfd = vars->abfd; - sym->symbol.name = vars->string_ptr; - sym->symbol.flags = BSF_EXPORT | BSF_GLOBAL | extra_flags; - sym->symbol.section = section; - sym->native = ent; - - * vars->table_ptr = vars->sym_index; - * vars->sym_ptr_ptr = sym; - - /* Adjust pointers for the next symbol. */ - vars->sym_index ++; - vars->sym_ptr ++; - vars->sym_ptr_ptr ++; - vars->table_ptr ++; - vars->native_ptr ++; - vars->esym_ptr ++; - vars->string_ptr += strlen (symbol_name) + strlen (prefix) + 1; - - BFD_ASSERT (vars->string_ptr < vars->end_string_ptr); -} - -/* Create a section. */ - -static asection_ptr -pe_ILF_make_a_section (pe_ILF_vars * vars, - const char * name, - unsigned int size, - flagword extra_flags) -{ - asection_ptr sec; - flagword flags; - - sec = bfd_make_section_old_way (vars->abfd, name); - if (sec == NULL) - return NULL; - - flags = SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_KEEP | SEC_IN_MEMORY; - - bfd_set_section_flags (vars->abfd, sec, flags | extra_flags); - - (void) bfd_set_section_alignment (vars->abfd, sec, 2); - - /* Check that we will not run out of space. */ - BFD_ASSERT (vars->data + size < vars->bim->buffer + vars->bim->size); - - /* Set the section size and contents. The actual - contents are filled in by our parent. */ - bfd_set_section_size (vars->abfd, sec, (bfd_size_type) size); - sec->contents = vars->data; - sec->target_index = vars->sec_index ++; - - /* Advance data pointer in the vars structure. */ - vars->data += size; - - /* Skip the padding byte if it was not needed. - The logic here is that if the string length is odd, - then the entire string length, including the null byte, - is even and so the extra, padding byte, is not needed. */ - if (size & 1) - vars->data --; - - /* Create a coff_section_tdata structure for our use. */ - sec->used_by_bfd = (struct coff_section_tdata *) vars->data; - vars->data += sizeof (struct coff_section_tdata); - - BFD_ASSERT (vars->data <= vars->bim->buffer + vars->bim->size); - - /* Create a symbol to refer to this section. */ - pe_ILF_make_a_symbol (vars, "", name, sec, BSF_LOCAL); - - /* Cache the index to the symbol in the coff_section_data structure. */ - coff_section_data (vars->abfd, sec)->i = vars->sym_index - 1; - - return sec; -} - -/* This structure contains the code that goes into the .text section - in order to perform a jump into the DLL lookup table. The entries - in the table are index by the magic number used to represent the - machine type in the PE file. The contents of the data[] arrays in - these entries are stolen from the jtab[] arrays in ld/pe-dll.c. - The SIZE field says how many bytes in the DATA array are actually - used. The OFFSET field says where in the data array the address - of the .idata$5 section should be placed. */ -#define MAX_TEXT_SECTION_SIZE 32 - -typedef struct -{ - unsigned short magic; - unsigned char data[MAX_TEXT_SECTION_SIZE]; - unsigned int size; - unsigned int offset; -} -jump_table; - -static jump_table jtab[] = -{ -#ifdef I386MAGIC - { I386MAGIC, - { 0xff, 0x25, 0x00, 0x00, 0x00, 0x00, 0x90, 0x90 }, - 8, 2 - }, -#endif - -#ifdef AMD64MAGIC - { AMD64MAGIC, - { 0xff, 0x25, 0x00, 0x00, 0x00, 0x00, 0x90, 0x90 }, - 8, 2 - }, -#endif - -#ifdef MC68MAGIC - { MC68MAGIC, - { /* XXX fill me in */ }, - 0, 0 - }, -#endif - -#ifdef MIPS_ARCH_MAGIC_WINCE - { MIPS_ARCH_MAGIC_WINCE, - { 0x00, 0x00, 0x08, 0x3c, 0x00, 0x00, 0x08, 0x8d, - 0x08, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00 }, - 16, 0 - }, -#endif - -#ifdef SH_ARCH_MAGIC_WINCE - { SH_ARCH_MAGIC_WINCE, - { 0x01, 0xd0, 0x02, 0x60, 0x2b, 0x40, - 0x09, 0x00, 0x00, 0x00, 0x00, 0x00 }, - 12, 8 - }, -#endif - -#ifdef ARMPEMAGIC - { ARMPEMAGIC, - { 0x00, 0xc0, 0x9f, 0xe5, 0x00, 0xf0, - 0x9c, 0xe5, 0x00, 0x00, 0x00, 0x00}, - 12, 8 - }, -#endif - -#ifdef THUMBPEMAGIC - { THUMBPEMAGIC, - { 0x40, 0xb4, 0x02, 0x4e, 0x36, 0x68, 0xb4, 0x46, - 0x40, 0xbc, 0x60, 0x47, 0x00, 0x00, 0x00, 0x00 }, - 16, 12 - }, -#endif - { 0, { 0 }, 0, 0 } -}; - -#ifndef NUM_ENTRIES -#define NUM_ENTRIES(a) (sizeof (a) / sizeof (a)[0]) -#endif - -/* Build a full BFD from the information supplied in a ILF object. */ - -static bfd_boolean -pe_ILF_build_a_bfd (bfd * abfd, - unsigned int magic, - char * symbol_name, - char * source_dll, - unsigned int ordinal, - unsigned int types) -{ - bfd_byte * ptr; - pe_ILF_vars vars; - struct internal_filehdr internal_f; - unsigned int import_type; - unsigned int import_name_type; - asection_ptr id4, id5, id6 = NULL, text = NULL; - coff_symbol_type ** imp_sym; - unsigned int imp_index; - - /* Decode and verify the types field of the ILF structure. */ - import_type = types & 0x3; - import_name_type = (types & 0x1c) >> 2; - - switch (import_type) - { - case IMPORT_CODE: - case IMPORT_DATA: - break; - - case IMPORT_CONST: - /* XXX code yet to be written. */ - _bfd_error_handler (_("%B: Unhandled import type; %x"), - abfd, import_type); - return FALSE; - - default: - _bfd_error_handler (_("%B: Unrecognised import type; %x"), - abfd, import_type); - return FALSE; - } - - switch (import_name_type) - { - case IMPORT_ORDINAL: - case IMPORT_NAME: - case IMPORT_NAME_NOPREFIX: - case IMPORT_NAME_UNDECORATE: - break; - - default: - _bfd_error_handler (_("%B: Unrecognised import name type; %x"), - abfd, import_name_type); - return FALSE; - } - - /* Initialise local variables. - - Note these are kept in a structure rather than being - declared as statics since bfd frowns on global variables. - - We are going to construct the contents of the BFD in memory, - so allocate all the space that we will need right now. */ - vars.bim - = (struct bfd_in_memory *) bfd_malloc ((bfd_size_type) sizeof (*vars.bim)); - if (vars.bim == NULL) - return FALSE; - - ptr = (bfd_byte *) bfd_zmalloc ((bfd_size_type) ILF_DATA_SIZE); - vars.bim->buffer = ptr; - vars.bim->size = ILF_DATA_SIZE; - if (ptr == NULL) - goto error_return; - - /* Initialise the pointers to regions of the memory and the - other contents of the pe_ILF_vars structure as well. */ - vars.sym_cache = (coff_symbol_type *) ptr; - vars.sym_ptr = (coff_symbol_type *) ptr; - vars.sym_index = 0; - ptr += SIZEOF_ILF_SYMS; - - vars.sym_table = (unsigned int *) ptr; - vars.table_ptr = (unsigned int *) ptr; - ptr += SIZEOF_ILF_SYM_TABLE; - - vars.native_syms = (combined_entry_type *) ptr; - vars.native_ptr = (combined_entry_type *) ptr; - ptr += SIZEOF_ILF_NATIVE_SYMS; - - vars.sym_ptr_table = (coff_symbol_type **) ptr; - vars.sym_ptr_ptr = (coff_symbol_type **) ptr; - ptr += SIZEOF_ILF_SYM_PTR_TABLE; - - vars.esym_table = (SYMENT *) ptr; - vars.esym_ptr = (SYMENT *) ptr; - ptr += SIZEOF_ILF_EXT_SYMS; - - vars.reltab = (arelent *) ptr; - vars.relcount = 0; - ptr += SIZEOF_ILF_RELOCS; - - vars.int_reltab = (struct internal_reloc *) ptr; - ptr += SIZEOF_ILF_INT_RELOCS; - - vars.string_table = (char *) ptr; - vars.string_ptr = (char *) ptr + STRING_SIZE_SIZE; - ptr += SIZEOF_ILF_STRINGS; - vars.end_string_ptr = (char *) ptr; - - /* The remaining space in bim->buffer is used - by the pe_ILF_make_a_section() function. */ - vars.data = ptr; - vars.abfd = abfd; - vars.sec_index = 0; - vars.magic = magic; - - /* Create the initial .idata$<n> sections: - [.idata$2: Import Directory Table -- not needed] - .idata$4: Import Lookup Table - .idata$5: Import Address Table - - Note we do not create a .idata$3 section as this is - created for us by the linker script. */ - id4 = pe_ILF_make_a_section (& vars, ".idata$4", SIZEOF_IDATA4, 0); - id5 = pe_ILF_make_a_section (& vars, ".idata$5", SIZEOF_IDATA5, 0); - if (id4 == NULL || id5 == NULL) - goto error_return; - - /* Fill in the contents of these sections. */ - if (import_name_type == IMPORT_ORDINAL) - { - if (ordinal == 0) - /* XXX - treat as IMPORT_NAME ??? */ - abort (); - -#ifdef COFF_WITH_pex64 - ((unsigned int *) id4->contents)[0] = ordinal; - ((unsigned int *) id4->contents)[1] = 0x80000000; - ((unsigned int *) id5->contents)[0] = ordinal; - ((unsigned int *) id5->contents)[1] = 0x80000000; -#else - * (unsigned int *) id4->contents = ordinal | 0x80000000; - * (unsigned int *) id5->contents = ordinal | 0x80000000; -#endif - } - else - { - char * symbol; - unsigned int len; - - /* Create .idata$6 - the Hint Name Table. */ - id6 = pe_ILF_make_a_section (& vars, ".idata$6", SIZEOF_IDATA6, 0); - if (id6 == NULL) - goto error_return; - - /* If necessary, trim the import symbol name. */ - symbol = symbol_name; - - /* As used by MS compiler, '_', '@', and '?' are alternative - forms of USER_LABEL_PREFIX, with '?' for c++ mangled names, - '@' used for fastcall (in C), '_' everywhere else. Only one - of these is used for a symbol. We strip this leading char for - IMPORT_NAME_NOPREFIX and IMPORT_NAME_UNDECORATE as per the - PE COFF 6.0 spec (section 8.3, Import Name Type). */ - - if (import_name_type != IMPORT_NAME) - { - char c = symbol[0]; - - /* Check that we don't remove for targets with empty - USER_LABEL_PREFIX the leading underscore. */ - if ((c == '_' && abfd->xvec->symbol_leading_char != 0) - || c == '@' || c == '?') - symbol++; - } - - len = strlen (symbol); - if (import_name_type == IMPORT_NAME_UNDECORATE) - { - /* Truncate at the first '@'. */ - char *at = strchr (symbol, '@'); - - if (at != NULL) - len = at - symbol; - } - - id6->contents[0] = ordinal & 0xff; - id6->contents[1] = ordinal >> 8; - - memcpy ((char *) id6->contents + 2, symbol, len); - id6->contents[len + 2] = '\0'; - } - - if (import_name_type != IMPORT_ORDINAL) - { - pe_ILF_make_a_reloc (&vars, (bfd_vma) 0, BFD_RELOC_RVA, id6); - pe_ILF_save_relocs (&vars, id4); - - pe_ILF_make_a_reloc (&vars, (bfd_vma) 0, BFD_RELOC_RVA, id6); - pe_ILF_save_relocs (&vars, id5); - } - - /* Create extra sections depending upon the type of import we are dealing with. */ - switch (import_type) - { - int i; - - case IMPORT_CODE: - /* Create a .text section. - First we need to look up its contents in the jump table. */ - for (i = NUM_ENTRIES (jtab); i--;) - { - if (jtab[i].size == 0) - continue; - if (jtab[i].magic == magic) - break; - } - /* If we did not find a matching entry something is wrong. */ - if (i < 0) - abort (); - - /* Create the .text section. */ - text = pe_ILF_make_a_section (& vars, ".text", jtab[i].size, SEC_CODE); - if (text == NULL) - goto error_return; - - /* Copy in the jump code. */ - memcpy (text->contents, jtab[i].data, jtab[i].size); - - /* Create an import symbol. */ - pe_ILF_make_a_symbol (& vars, "__imp_", symbol_name, id5, 0); - imp_sym = vars.sym_ptr_ptr - 1; - imp_index = vars.sym_index - 1; - - /* Create a reloc for the data in the text section. */ -#ifdef MIPS_ARCH_MAGIC_WINCE - if (magic == MIPS_ARCH_MAGIC_WINCE) - { - pe_ILF_make_a_symbol_reloc (&vars, (bfd_vma) 0, BFD_RELOC_HI16_S, - (struct bfd_symbol **) imp_sym, - imp_index); - pe_ILF_make_a_reloc (&vars, (bfd_vma) 0, BFD_RELOC_LO16, text); - pe_ILF_make_a_symbol_reloc (&vars, (bfd_vma) 4, BFD_RELOC_LO16, - (struct bfd_symbol **) imp_sym, - imp_index); - } - else -#endif - pe_ILF_make_a_symbol_reloc (&vars, (bfd_vma) jtab[i].offset, - BFD_RELOC_32, (asymbol **) imp_sym, - imp_index); - - pe_ILF_save_relocs (& vars, text); - break; - - case IMPORT_DATA: - break; - - default: - /* XXX code not yet written. */ - abort (); - } - - /* Initialise the bfd. */ - memset (& internal_f, 0, sizeof (internal_f)); - - internal_f.f_magic = magic; - internal_f.f_symptr = 0; - internal_f.f_nsyms = 0; - internal_f.f_flags = F_AR32WR | F_LNNO; /* XXX is this correct ? */ - - if ( ! bfd_set_start_address (abfd, (bfd_vma) 0) - || ! bfd_coff_set_arch_mach_hook (abfd, & internal_f)) - goto error_return; - - if (bfd_coff_mkobject_hook (abfd, (void *) & internal_f, NULL) == NULL) - goto error_return; - - coff_data (abfd)->pe = 1; -#ifdef THUMBPEMAGIC - if (vars.magic == THUMBPEMAGIC) - /* Stop some linker warnings about thumb code not supporting interworking. */ - coff_data (abfd)->flags |= F_INTERWORK | F_INTERWORK_SET; -#endif - - /* Switch from file contents to memory contents. */ - bfd_cache_close (abfd); - - abfd->iostream = (void *) vars.bim; - abfd->flags |= BFD_IN_MEMORY /* | HAS_LOCALS */; - abfd->iovec = &_bfd_memory_iovec; - abfd->where = 0; - abfd->origin = 0; - obj_sym_filepos (abfd) = 0; - - /* Now create a symbol describing the imported value. */ - switch (import_type) - { - case IMPORT_CODE: - pe_ILF_make_a_symbol (& vars, "", symbol_name, text, - BSF_NOT_AT_END | BSF_FUNCTION); - - /* Create an import symbol for the DLL, without the - .dll suffix. */ - ptr = (bfd_byte *) strrchr (source_dll, '.'); - if (ptr) - * ptr = 0; - pe_ILF_make_a_symbol (& vars, "__IMPORT_DESCRIPTOR_", source_dll, NULL, 0); - if (ptr) - * ptr = '.'; - break; - - case IMPORT_DATA: - /* Nothing to do here. */ - break; - - default: - /* XXX code not yet written. */ - abort (); - } - - /* Point the bfd at the symbol table. */ - obj_symbols (abfd) = vars.sym_cache; - bfd_get_symcount (abfd) = vars.sym_index; - - obj_raw_syments (abfd) = vars.native_syms; - obj_raw_syment_count (abfd) = vars.sym_index; - - obj_coff_external_syms (abfd) = (void *) vars.esym_table; - obj_coff_keep_syms (abfd) = TRUE; - - obj_convert (abfd) = vars.sym_table; - obj_conv_table_size (abfd) = vars.sym_index; - - obj_coff_strings (abfd) = vars.string_table; - obj_coff_keep_strings (abfd) = TRUE; - - abfd->flags |= HAS_SYMS; - - return TRUE; - - error_return: - if (vars.bim->buffer != NULL) - free (vars.bim->buffer); - free (vars.bim); - return FALSE; -} - -/* We have detected a Image Library Format archive element. - Decode the element and return the appropriate target. */ - -static const bfd_target * -pe_ILF_object_p (bfd * abfd) -{ - bfd_byte buffer[16]; - bfd_byte * ptr; - char * symbol_name; - char * source_dll; - unsigned int machine; - bfd_size_type size; - unsigned int ordinal; - unsigned int types; - unsigned int magic; - - /* Upon entry the first four buyes of the ILF header have - already been read. Now read the rest of the header. */ - if (bfd_bread (buffer, (bfd_size_type) 16, abfd) != 16) - return NULL; - - ptr = buffer; - - /* We do not bother to check the version number. - version = H_GET_16 (abfd, ptr); */ - ptr += 2; - - machine = H_GET_16 (abfd, ptr); - ptr += 2; - - /* Check that the machine type is recognised. */ - magic = 0; - - switch (machine) - { - case IMAGE_FILE_MACHINE_UNKNOWN: - case IMAGE_FILE_MACHINE_ALPHA: - case IMAGE_FILE_MACHINE_ALPHA64: - case IMAGE_FILE_MACHINE_IA64: - break; - - case IMAGE_FILE_MACHINE_I386: -#ifdef I386MAGIC - magic = I386MAGIC; -#endif - break; - - case IMAGE_FILE_MACHINE_AMD64: -#ifdef AMD64MAGIC - magic = AMD64MAGIC; -#endif - break; - - case IMAGE_FILE_MACHINE_M68K: -#ifdef MC68AGIC - magic = MC68MAGIC; -#endif - break; - - case IMAGE_FILE_MACHINE_R3000: - case IMAGE_FILE_MACHINE_R4000: - case IMAGE_FILE_MACHINE_R10000: - - case IMAGE_FILE_MACHINE_MIPS16: - case IMAGE_FILE_MACHINE_MIPSFPU: - case IMAGE_FILE_MACHINE_MIPSFPU16: -#ifdef MIPS_ARCH_MAGIC_WINCE - magic = MIPS_ARCH_MAGIC_WINCE; -#endif - break; - - case IMAGE_FILE_MACHINE_SH3: - case IMAGE_FILE_MACHINE_SH4: -#ifdef SH_ARCH_MAGIC_WINCE - magic = SH_ARCH_MAGIC_WINCE; -#endif - break; - - case IMAGE_FILE_MACHINE_ARM: -#ifdef ARMPEMAGIC - magic = ARMPEMAGIC; -#endif - break; - - case IMAGE_FILE_MACHINE_THUMB: -#ifdef THUMBPEMAGIC - { - extern const bfd_target TARGET_LITTLE_SYM; - - if (abfd->xvec == & TARGET_LITTLE_SYM) - magic = THUMBPEMAGIC; - } -#endif - break; - - case IMAGE_FILE_MACHINE_POWERPC: - /* We no longer support PowerPC. */ - default: - _bfd_error_handler - (_("%B: Unrecognised machine type (0x%x)" - " in Import Library Format archive"), - abfd, machine); - bfd_set_error (bfd_error_malformed_archive); - - return NULL; - break; - } - - if (magic == 0) - { - _bfd_error_handler - (_("%B: Recognised but unhandled machine type (0x%x)" - " in Import Library Format archive"), - abfd, machine); - bfd_set_error (bfd_error_wrong_format); - - return NULL; - } - - /* We do not bother to check the date. - date = H_GET_32 (abfd, ptr); */ - ptr += 4; - - size = H_GET_32 (abfd, ptr); - ptr += 4; - - if (size == 0) - { - _bfd_error_handler - (_("%B: size field is zero in Import Library Format header"), abfd); - bfd_set_error (bfd_error_malformed_archive); - - return NULL; - } - - ordinal = H_GET_16 (abfd, ptr); - ptr += 2; - - types = H_GET_16 (abfd, ptr); - /* ptr += 2; */ - - /* Now read in the two strings that follow. */ - ptr = (bfd_byte *) bfd_alloc (abfd, size); - if (ptr == NULL) - return NULL; - - if (bfd_bread (ptr, size, abfd) != size) - { - bfd_release (abfd, ptr); - return NULL; - } - - symbol_name = (char *) ptr; - source_dll = symbol_name + strlen (symbol_name) + 1; - - /* Verify that the strings are null terminated. */ - if (ptr[size - 1] != 0 - || (bfd_size_type) ((bfd_byte *) source_dll - ptr) >= size) - { - _bfd_error_handler - (_("%B: string not null terminated in ILF object file."), abfd); - bfd_set_error (bfd_error_malformed_archive); - bfd_release (abfd, ptr); - return NULL; - } - - /* Now construct the bfd. */ - if (! pe_ILF_build_a_bfd (abfd, magic, symbol_name, - source_dll, ordinal, types)) - { - bfd_release (abfd, ptr); - return NULL; - } - - return abfd->xvec; -} - -static const bfd_target * -pe_bfd_object_p (bfd * abfd) -{ - bfd_byte buffer[4]; - struct external_PEI_DOS_hdr dos_hdr; - struct external_PEI_IMAGE_hdr image_hdr; - struct internal_filehdr internal_f; - struct internal_aouthdr internal_a; - file_ptr opt_hdr_size; - file_ptr offset; - - /* Detect if this a Microsoft Import Library Format element. */ - if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0 - || bfd_bread (buffer, (bfd_size_type) 4, abfd) != 4) - { - if (bfd_get_error () != bfd_error_system_call) - bfd_set_error (bfd_error_wrong_format); - return NULL; - } - - if (H_GET_32 (abfd, buffer) == 0xffff0000) - return pe_ILF_object_p (abfd); - - if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0 - || bfd_bread (&dos_hdr, (bfd_size_type) sizeof (dos_hdr), abfd) - != sizeof (dos_hdr)) - { - if (bfd_get_error () != bfd_error_system_call) - bfd_set_error (bfd_error_wrong_format); - return NULL; - } - - /* There are really two magic numbers involved; the magic number - that says this is a NT executable (PEI) and the magic number that - determines the architecture. The former is DOSMAGIC, stored in - the e_magic field. The latter is stored in the f_magic field. - If the NT magic number isn't valid, the architecture magic number - could be mimicked by some other field (specifically, the number - of relocs in section 3). Since this routine can only be called - correctly for a PEI file, check the e_magic number here, and, if - it doesn't match, clobber the f_magic number so that we don't get - a false match. */ - if (H_GET_16 (abfd, dos_hdr.e_magic) != DOSMAGIC) - { - bfd_set_error (bfd_error_wrong_format); - return NULL; - } - - offset = H_GET_32 (abfd, dos_hdr.e_lfanew); - if (bfd_seek (abfd, offset, SEEK_SET) != 0 - || (bfd_bread (&image_hdr, (bfd_size_type) sizeof (image_hdr), abfd) - != sizeof (image_hdr))) - { - if (bfd_get_error () != bfd_error_system_call) - bfd_set_error (bfd_error_wrong_format); - return NULL; - } - - if (H_GET_32 (abfd, image_hdr.nt_signature) != 0x4550) - { - bfd_set_error (bfd_error_wrong_format); - return NULL; - } - - /* Swap file header, so that we get the location for calling - real_object_p. */ - bfd_coff_swap_filehdr_in (abfd, (PTR)&image_hdr, &internal_f); - - if (! bfd_coff_bad_format_hook (abfd, &internal_f) - || internal_f.f_opthdr > bfd_coff_aoutsz (abfd)) - { - bfd_set_error (bfd_error_wrong_format); - return NULL; - } - - /* Read the optional header, which has variable size. */ - opt_hdr_size = internal_f.f_opthdr; - - if (opt_hdr_size != 0) - { - PTR opthdr; - - opthdr = bfd_alloc (abfd, opt_hdr_size); - if (opthdr == NULL) - return NULL; - if (bfd_bread (opthdr, opt_hdr_size, abfd) - != (bfd_size_type) opt_hdr_size) - return NULL; - - bfd_coff_swap_aouthdr_in (abfd, opthdr, (PTR) & internal_a); - } - - return coff_real_object_p (abfd, internal_f.f_nscns, &internal_f, - (opt_hdr_size != 0 - ? &internal_a - : (struct internal_aouthdr *) NULL)); -} - -#define coff_object_p pe_bfd_object_p -#endif /* COFF_IMAGE_WITH_PE */ |