diff options
Diffstat (limited to 'bfd/peicode.h')
| -rw-r--r-- | bfd/peicode.h | 363 |
1 files changed, 0 insertions, 363 deletions
diff --git a/bfd/peicode.h b/bfd/peicode.h deleted file mode 100644 index 0b6bde4e44b..00000000000 --- a/bfd/peicode.h +++ /dev/null @@ -1,363 +0,0 @@ -/* Support for the generic parts of PE/PEI, for BFD. - Copyright 1995, 1996, 1997, 1998, 1999 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 2 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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 boolean (*pe_saved_coff_bfd_print_private_bfd_data) - PARAMS ((bfd *, PTR)) = -#ifndef coff_bfd_print_private_bfd_data - NULL; -#else - coff_bfd_print_private_bfd_data; -#undef coff_bfd_print_private_bfd_data -#endif - -static boolean pe_print_private_bfd_data PARAMS ((bfd *, PTR)); -#define coff_bfd_print_private_bfd_data pe_print_private_bfd_data - - -static boolean (*pe_saved_coff_bfd_copy_private_bfd_data) - PARAMS ((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 boolean pe_bfd_copy_private_bfd_data PARAMS ((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 - -static void coff_swap_reloc_in PARAMS ((bfd *, PTR, PTR)); -static unsigned int coff_swap_reloc_out PARAMS ((bfd *, PTR, PTR)); -static void coff_swap_filehdr_in PARAMS ((bfd *, PTR, PTR)); -static void coff_swap_scnhdr_in PARAMS ((bfd *, PTR, PTR)); -static boolean pe_mkobject PARAMS ((bfd *)); -static PTR pe_mkobject_hook PARAMS ((bfd *, PTR, PTR)); - -/**********************************************************************/ - -static void -coff_swap_reloc_in (abfd, src, dst) - bfd *abfd; - PTR src; - PTR dst; -{ - RELOC *reloc_src = (RELOC *) src; - struct internal_reloc *reloc_dst = (struct internal_reloc *) dst; - - reloc_dst->r_vaddr = bfd_h_get_32(abfd, (bfd_byte *)reloc_src->r_vaddr); - reloc_dst->r_symndx = bfd_h_get_signed_32(abfd, (bfd_byte *) reloc_src->r_symndx); - - reloc_dst->r_type = bfd_h_get_16(abfd, (bfd_byte *) reloc_src->r_type); - -#ifdef SWAP_IN_RELOC_OFFSET - reloc_dst->r_offset = SWAP_IN_RELOC_OFFSET(abfd, - (bfd_byte *) reloc_src->r_offset); -#endif -} - - -static unsigned int -coff_swap_reloc_out (abfd, src, dst) - bfd *abfd; - PTR src; - PTR dst; -{ - struct internal_reloc *reloc_src = (struct internal_reloc *)src; - struct external_reloc *reloc_dst = (struct external_reloc *)dst; - bfd_h_put_32(abfd, reloc_src->r_vaddr, (bfd_byte *) reloc_dst->r_vaddr); - bfd_h_put_32(abfd, reloc_src->r_symndx, (bfd_byte *) reloc_dst->r_symndx); - - bfd_h_put_16(abfd, reloc_src->r_type, (bfd_byte *) - reloc_dst->r_type); - -#ifdef SWAP_OUT_RELOC_OFFSET - SWAP_OUT_RELOC_OFFSET(abfd, - reloc_src->r_offset, - (bfd_byte *) reloc_dst->r_offset); -#endif -#ifdef SWAP_OUT_RELOC_EXTRA - SWAP_OUT_RELOC_EXTRA(abfd,reloc_src, reloc_dst); -#endif - return RELSZ; -} - - -static void -coff_swap_filehdr_in (abfd, src, dst) - bfd *abfd; - PTR src; - PTR dst; -{ - FILHDR *filehdr_src = (FILHDR *) src; - struct internal_filehdr *filehdr_dst = (struct internal_filehdr *) dst; - filehdr_dst->f_magic = bfd_h_get_16(abfd, (bfd_byte *) filehdr_src->f_magic); - filehdr_dst->f_nscns = bfd_h_get_16(abfd, (bfd_byte *)filehdr_src-> f_nscns); - filehdr_dst->f_timdat = bfd_h_get_32(abfd, (bfd_byte *)filehdr_src-> f_timdat); - - filehdr_dst->f_nsyms = bfd_h_get_32(abfd, (bfd_byte *)filehdr_src-> f_nsyms); - filehdr_dst->f_flags = bfd_h_get_16(abfd, (bfd_byte *)filehdr_src-> f_flags); - filehdr_dst->f_symptr = bfd_h_get_32 (abfd, (bfd_byte *) filehdr_src->f_symptr); - -#ifdef COFF_IMAGE_WITH_PE - /* 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 (bfd_h_get_16 (abfd, (bfd_byte *) filehdr_src->e_magic) != DOSMAGIC) - filehdr_dst->f_magic = -1; -#endif - - /* 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 = bfd_h_get_16(abfd, - (bfd_byte *)filehdr_src-> f_opthdr); -} - -#ifdef COFF_IMAGE_WITH_PE -#define coff_swap_filehdr_out _bfd_pei_only_swap_filehdr_out -#else -#define coff_swap_filehdr_out _bfd_pe_only_swap_filehdr_out -#endif - - -static void -coff_swap_scnhdr_in (abfd, ext, in) - bfd *abfd; - PTR ext; - PTR 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, (bfd_byte *) scnhdr_ext->s_vaddr); - scnhdr_int->s_paddr = - GET_SCNHDR_PADDR (abfd, (bfd_byte *) scnhdr_ext->s_paddr); - scnhdr_int->s_size = - GET_SCNHDR_SIZE (abfd, (bfd_byte *) scnhdr_ext->s_size); - scnhdr_int->s_scnptr = - GET_SCNHDR_SCNPTR (abfd, (bfd_byte *) scnhdr_ext->s_scnptr); - scnhdr_int->s_relptr = - GET_SCNHDR_RELPTR (abfd, (bfd_byte *) scnhdr_ext->s_relptr); - scnhdr_int->s_lnnoptr = - GET_SCNHDR_LNNOPTR (abfd, (bfd_byte *) scnhdr_ext->s_lnnoptr); - scnhdr_int->s_flags = bfd_h_get_32(abfd, (bfd_byte *) 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 = - (bfd_h_get_16 (abfd, (bfd_byte *) scnhdr_ext->s_nlnno) - + (bfd_h_get_16 (abfd, (bfd_byte *) scnhdr_ext->s_nreloc) << 16)); - scnhdr_int->s_nreloc = 0; -#else - scnhdr_int->s_nreloc = bfd_h_get_16 (abfd, - (bfd_byte *) scnhdr_ext->s_nreloc); - scnhdr_int->s_nlnno = bfd_h_get_16 (abfd, - (bfd_byte *) scnhdr_ext->s_nlnno); -#endif - - if (scnhdr_int->s_vaddr != 0) - { - scnhdr_int->s_vaddr += pe_data (abfd)->pe_opthdr.ImageBase; - scnhdr_int->s_vaddr &= 0xffffffff; - } - - /* If this section holds uninitialized data, use the virtual size - (stored in s_paddr) instead of the physical size. */ - if ((scnhdr_int->s_flags & IMAGE_SCN_CNT_UNINITIALIZED_DATA) != 0) - { - 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. */ - } -} - -static boolean -pe_mkobject (abfd) - bfd * abfd; -{ - pe_data_type *pe; - abfd->tdata.pe_obj_data = - (struct pe_tdata *) bfd_zalloc (abfd, sizeof (pe_data_type)); - - 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 PTR -pe_mkobject_hook (abfd, filehdr, aouthdr) - bfd * abfd; - PTR filehdr; - PTR aouthdr ATTRIBUTE_UNUSED; -{ - struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; - pe_data_type *pe; - - if (pe_mkobject (abfd) == false) - 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 (PTR) pe; -} - -static boolean -pe_print_private_bfd_data (abfd, vfile) - bfd *abfd; - PTR vfile; -{ - FILE *file = (FILE *) vfile; - - if (!_bfd_pe_print_private_bfd_data_common (abfd, vfile)) - return false; - - if (pe_saved_coff_bfd_print_private_bfd_data != NULL) - { - fputc ('\n', file); - - return pe_saved_coff_bfd_print_private_bfd_data (abfd, vfile); - } - - return true; -} - -/* Copy any private info we understand from the input bfd - to the output bfd. */ - -static boolean -pe_bfd_copy_private_bfd_data (ibfd, obfd) - bfd *ibfd, *obfd; -{ - if (!_bfd_pe_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_pe_bfd_copy_private_section_data - -#define coff_get_symbol_info _bfd_pe_get_symbol_info |