| /* BFD back-end for HP/Intel IA-64 COFF files. |
| Copyright 1999 Free Software Foundation, Inc. |
| Contributed by David Mosberger <davidm@hpl.hp.com> |
| |
| 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. */ |
| |
| #include "bfd.h" |
| #include "sysdep.h" |
| #include "libbfd.h" |
| |
| #include "coff/ia64.h" |
| |
| #include "coff/internal.h" |
| |
| #include "coff/pe.h" |
| |
| #include "libcoff.h" |
| |
| #define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (2) |
| /* The page size is a guess based on ELF. */ |
| |
| #define COFF_PAGE_SIZE 0x1000 |
| |
| static reloc_howto_type howto_table[] = |
| { |
| {0}, |
| }; |
| |
| #define BADMAG(x) IA64BADMAG(x) |
| #define IA64 1 /* Customize coffcode.h */ |
| |
| #ifdef COFF_WITH_PEP64 |
| # undef AOUTSZ |
| # define AOUTSZ PEP64AOUTSZ |
| # define PEAOUTHDR PEP64AOUTHDR |
| #endif |
| |
| #define RTYPE2HOWTO(cache_ptr, dst) \ |
| (cache_ptr)->howto = howto_table + (dst)->r_type; |
| |
| #ifdef COFF_WITH_PE |
| /* Return true if this relocation should |
| appear in the output .reloc section. */ |
| |
| static boolean |
| in_reloc_p(abfd, howto) |
| bfd * abfd; |
| reloc_howto_type *howto; |
| { |
| return 0; /* We don't do relocs for now... */ |
| } |
| #endif |
| |
| #include "coffcode.h" |
| |
| static const bfd_target * |
| ia64coff_object_p (abfd) |
| bfd *abfd; |
| { |
| #ifdef COFF_IMAGE_WITH_PE |
| /* We need to hack badly to handle a PE image correctly. In PE |
| images created by the GNU linker, the offset to the COFF header |
| is always the size. However, this is not the case in images |
| generated by other PE linkers. The PE format stores a four byte |
| offset to the PE signature just before the COFF header at |
| location 0x3c of the file. We pick up that offset, verify that |
| the PE signature is there, and then set ourselves up to read in |
| the COFF header. */ |
| { |
| bfd_byte ext_offset[4]; |
| file_ptr offset; |
| bfd_byte ext_signature[4]; |
| unsigned long signature; |
| |
| if (bfd_seek (abfd, 0x3c, SEEK_SET) != 0 |
| || bfd_read (ext_offset, 1, 4, abfd) != 4) |
| { |
| if (bfd_get_error () != bfd_error_system_call) |
| bfd_set_error (bfd_error_wrong_format); |
| return NULL; |
| } |
| offset = bfd_h_get_32 (abfd, ext_offset); |
| if (bfd_seek (abfd, offset, SEEK_SET) != 0 |
| || bfd_read (ext_signature, 1, 4, abfd) != 4) |
| { |
| if (bfd_get_error () != bfd_error_system_call) |
| bfd_set_error (bfd_error_wrong_format); |
| return NULL; |
| } |
| signature = bfd_h_get_32 (abfd, ext_signature); |
| |
| if (signature != 0x4550) |
| { |
| bfd_set_error (bfd_error_wrong_format); |
| return NULL; |
| } |
| |
| /* Here is the hack. coff_object_p wants to read filhsz bytes to |
| pick up the COFF header. We adjust so that that will work. 20 |
| is the size of the COFF filehdr. */ |
| |
| if (bfd_seek (abfd, |
| (bfd_tell (abfd) |
| - bfd_coff_filhsz (abfd) |
| + 20), |
| SEEK_SET) |
| != 0) |
| { |
| if (bfd_get_error () != bfd_error_system_call) |
| bfd_set_error (bfd_error_wrong_format); |
| return NULL; |
| } |
| } |
| #endif |
| |
| return coff_object_p (abfd); |
| } |
| |
| const bfd_target |
| #ifdef TARGET_SYM |
| TARGET_SYM = |
| #else |
| ia64coff_vec = |
| #endif |
| { |
| #ifdef TARGET_NAME |
| TARGET_NAME, |
| #else |
| "coff-ia64", /* name */ |
| #endif |
| bfd_target_coff_flavour, |
| BFD_ENDIAN_LITTLE, /* data byte order is little */ |
| BFD_ENDIAN_LITTLE, /* header byte order is little */ |
| |
| (HAS_RELOC | EXEC_P | /* object flags */ |
| HAS_LINENO | HAS_DEBUG | |
| HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED), |
| |
| #ifndef COFF_WITH_PE |
| (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC /* section flags */ |
| | SEC_CODE | SEC_DATA), |
| #else |
| (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC /* section flags */ |
| | SEC_CODE | SEC_DATA |
| | SEC_LINK_ONCE | SEC_LINK_DUPLICATES), |
| #endif |
| |
| #ifdef TARGET_UNDERSCORE |
| TARGET_UNDERSCORE, /* leading underscore */ |
| #else |
| 0, /* leading underscore */ |
| #endif |
| '/', /* ar_pad_char */ |
| 15, /* ar_max_namelen */ |
| |
| bfd_getl64, bfd_getl_signed_64, bfd_putl64, |
| bfd_getl32, bfd_getl_signed_32, bfd_putl32, |
| bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */ |
| bfd_getl64, bfd_getl_signed_64, bfd_putl64, |
| bfd_getl32, bfd_getl_signed_32, bfd_putl32, |
| bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */ |
| |
| /* Note that we allow an object file to be treated as a core file as well. */ |
| {_bfd_dummy_target, ia64coff_object_p, /* bfd_check_format */ |
| bfd_generic_archive_p, ia64coff_object_p}, |
| {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */ |
| bfd_false}, |
| {bfd_false, coff_write_object_contents, /* bfd_write_contents */ |
| _bfd_write_archive_contents, bfd_false}, |
| |
| BFD_JUMP_TABLE_GENERIC (coff), |
| BFD_JUMP_TABLE_COPY (coff), |
| BFD_JUMP_TABLE_CORE (_bfd_nocore), |
| BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), |
| BFD_JUMP_TABLE_SYMBOLS (coff), |
| BFD_JUMP_TABLE_RELOCS (coff), |
| BFD_JUMP_TABLE_WRITE (coff), |
| BFD_JUMP_TABLE_LINK (coff), |
| BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), |
| |
| NULL, |
| |
| COFF_SWAP_TABLE |
| }; |