X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=bfd%2Fcoff-m88k.c;h=a6e01cc38e97bc0a4c0ed9b7c9ae7e6923074cce;hb=e43fb83166ca5610e34cfba1dcf1216d0953aa8c;hp=67db5dc7cc5fbb1863d284c9b5ce36c22e782ba6;hpb=4cddd1c9048abf7852e9faa4e46a9ce96d7f9436;p=deliverable%2Fbinutils-gdb.git diff --git a/bfd/coff-m88k.c b/bfd/coff-m88k.c index 67db5dc7cc..a6e01cc38e 100644 --- a/bfd/coff-m88k.c +++ b/bfd/coff-m88k.c @@ -1,121 +1,284 @@ -/* Copyright (C) 1990, 1991 Free Software Foundation, Inc. +/* BFD back-end for Motorola 88000 COFF "Binary Compatibility Standard" files. + Copyright (C) 1990-2015 Free Software Foundation, Inc. + Written by Cygnus Support. -This file is part of BFD, the Binary File Diddler. + This file is part of BFD, the Binary File Descriptor library. -BFD 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 1, or (at your option) -any later version. + 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. -BFD 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. + 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 BFD; see the file COPYING. If not, write to -the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ + 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. */ - -/* $Id$ */ - -#define M88 1 -#include -#include +#define M88 1 /* Customize various include files */ +#include "sysdep.h" #include "bfd.h" #include "libbfd.h" -#include "obstack.h" -#include "m88k-bcs.h" +#include "coff/m88k.h" +#include "coff/internal.h" #include "libcoff.h" -/* Provided the symbol, returns the value reffed */ -#define HOWTO_PREPARE(relocation, symbol) \ - { \ - if (symbol != (asymbol *)NULL) { \ - if (symbol->flags & BSF_FORT_COMM) { \ - relocation = 0; \ - } \ - else { \ - relocation = symbol->value; \ - } \ - } \ - if (symbol->section != (asection *)NULL) { \ - relocation += symbol->section->output_section->vma + \ - symbol->section->output_offset; \ - } \ -} - - - -static bfd_reloc_status_enum_type -DEFUN(howto_hvrt16,(abfd, reloc_entry, symbol_in, data, input_section), -bfd *abfd AND -arelent *reloc_entry AND -asymbol *symbol_in AND -unsigned char *data AND -asection *ignore_input_section) -{ - long relocation; - bfd_vma addr = reloc_entry->address; - long x = bfd_getshort(abfd, (bfd_byte *)data + addr); - - HOWTO_PREPARE(relocation, symbol_in); +static bfd_reloc_status_type m88k_special_reloc + (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); - x = (x + relocation + reloc_entry->addend) >> 16; +#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (3) - bfd_putshort(abfd, x, (bfd_byte *)data + addr); - return bfd_reloc_ok; -} +#define GET_SCNHDR_NRELOC H_GET_32 +#define GET_SCNHDR_NLNNO H_GET_32 +/* On coff-m88k, local labels start with '@'. */ +#define coff_bfd_is_local_label_name m88k_is_local_label_name -static reloc_howto_type howto_table[] = +static bfd_boolean +m88k_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED, const char *name) { - HOWTO(R_PCR16L,02,1,16,true, 0,false,true,0,"PCR16L",false,0x0000ffff,0x0000ffff,true), - HOWTO(R_PCR26L,02,2,16,true, 0,false,true,0,"PCR26L",false,0x03ffffff,0x03ffffff,true), - HOWTO(R_VRT16, 00,1,16,false,0,false,true,0,"VRT16", false,0x0000ffff,0x0000ffff,true), - HOWTO(R_HVRT16,16,1,16,false,0,false,true,howto_hvrt16,"HVRT16",false,0x0000ffff,0x0000ffff,true), - HOWTO(R_LVRT16,00,1,16,false,0,false,true,0,"LVRT16",false,0x0000ffff,0x0000ffff,true), - HOWTO(R_VRT32, 00,2,32,false,0,false,true,0,"VRT32", false,0xffffffff,0xffffffff,true), -}; - - - -#define BADMAG(x) MC88BADMAG(x) -#include "coff-code.h" - - + return name[0] == '@'; +} +static bfd_reloc_status_type +m88k_special_reloc (bfd *abfd, + arelent *reloc_entry, + asymbol *symbol, + void * data, + asection *input_section, + bfd *output_bfd, + char **error_message ATTRIBUTE_UNUSED) +{ + reloc_howto_type *howto = reloc_entry->howto; + + switch (howto->type) + { + case R_HVRT16: + case R_LVRT16: + if (output_bfd != (bfd *) NULL) + { + /* This is a partial relocation, and we want to apply the + relocation to the reloc entry rather than the raw data. + Modify the reloc inplace to reflect what we now know. */ + + reloc_entry->address += input_section->output_offset; + } + else + { + bfd_vma output_base = 0; + bfd_vma addr = reloc_entry->address; + bfd_vma x = bfd_get_16 (abfd, (bfd_byte *) data + addr); + asection *reloc_target_output_section; + long relocation = 0; + + /* Work out which section the relocation is targeted at and the + initial relocation command value. */ + + /* Get symbol value. (Common symbols are special.) */ + if (bfd_is_com_section (symbol->section)) + relocation = 0; + else + relocation = symbol->value; + + reloc_target_output_section = symbol->section->output_section; + + /* Convert input-section-relative symbol value to absolute. */ + if (output_bfd) + output_base = 0; + else + output_base = reloc_target_output_section->vma; + + relocation += output_base + symbol->section->output_offset; + + /* Add in supplied addend. */ + relocation += ((reloc_entry->addend << howto->bitsize) + x); + + reloc_entry->addend = 0; + + relocation >>= (bfd_vma) howto->rightshift; + + /* Shift everything up to where it's going to be used */ + + relocation <<= (bfd_vma) howto->bitpos; + + if (relocation) + bfd_put_16 (abfd, (bfd_vma) relocation, + (unsigned char *) data + addr); + } + + /* If we are not producing relocatable output, return an error if + the symbol is not defined. */ + if (bfd_is_und_section (symbol->section) && output_bfd == (bfd *) NULL) + return bfd_reloc_undefined; + + return bfd_reloc_ok; + + default: + if (output_bfd != (bfd *) NULL) + { + /* This is a partial relocation, and we want to apply the + relocation to the reloc entry rather than the raw data. + Modify the reloc inplace to reflect what we now know. */ + + reloc_entry->address += input_section->output_offset; + return bfd_reloc_ok; + } + break; + } + + if (output_bfd == (bfd *) NULL) + return bfd_reloc_continue; -#define coff_write_armap bsd_write_armap + return bfd_reloc_ok; +} +static reloc_howto_type howto_table[] = +{ + HOWTO (R_PCR16L, /* type */ + 02, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + TRUE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + m88k_special_reloc, /* special_function */ + "PCR16L", /* name */ + FALSE, /* partial_inplace */ + 0x0000ffff, /* src_mask */ + 0x0000ffff, /* dst_mask */ + TRUE), /* pcrel_offset */ + + HOWTO (R_PCR26L, /* type */ + 02, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 26, /* bitsize */ + TRUE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + m88k_special_reloc, /* special_function */ + "PCR26L", /* name */ + FALSE, /* partial_inplace */ + 0x03ffffff, /* src_mask */ + 0x03ffffff, /* dst_mask */ + TRUE), /* pcrel_offset */ + + HOWTO (R_VRT16, /* type */ + 00, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_bitfield, /* complain_on_overflow */ + m88k_special_reloc, /* special_function */ + "VRT16", /* name */ + FALSE, /* partial_inplace */ + 0x0000ffff, /* src_mask */ + 0x0000ffff, /* dst_mask */ + TRUE), /* pcrel_offset */ + + HOWTO (R_HVRT16, /* type */ + 16, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_dont, /* complain_on_overflow */ + m88k_special_reloc, /* special_function */ + "HVRT16", /* name */ + FALSE, /* partial_inplace */ + 0x0000ffff, /* src_mask */ + 0x0000ffff, /* dst_mask */ + TRUE), /* pcrel_offset */ + + HOWTO (R_LVRT16, /* type */ + 00, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_dont, /* complain_on_overflow */ + m88k_special_reloc, /* special_function */ + "LVRT16", /* name */ + FALSE, /* partial_inplace */ + 0x0000ffff, /* src_mask */ + 0x0000ffff, /* dst_mask */ + TRUE), /* pcrel_offset */ + + HOWTO (R_VRT32, /* type */ + 00, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 32, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_bitfield, /* complain_on_overflow */ + m88k_special_reloc, /* special_function */ + "VRT32", /* name */ + FALSE, /* partial_inplace */ + 0xffffffff, /* src_mask */ + 0xffffffff, /* dst_mask */ + TRUE), /* pcrel_offset */ +}; -bfd_target m88k_bcs_vec = +/* Code to turn an external r_type into a pointer to an entry in the + above howto table. */ +static void +rtype2howto (arelent *cache_ptr, struct internal_reloc *dst) { - "m88kbcs", /* name */ - bfd_target_coff_flavour_enum, - true, /* data byte order is big */ - true, /* header byte order is big */ + if (dst->r_type >= R_PCR16L && dst->r_type <= R_VRT32) + { + cache_ptr->howto = howto_table + dst->r_type - R_PCR16L; + } + else + { + BFD_ASSERT (0); + } +} - (HAS_RELOC | EXEC_P | /* object flags */ - HAS_LINENO | HAS_DEBUG | - HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT), +#define RTYPE2HOWTO(cache_ptr, dst) rtype2howto (cache_ptr, dst) - (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */ - '/', /* ar_pad_char */ - 15, /* ar_max_namelen */ +/* Code to swap in the reloc offset */ +#define SWAP_IN_RELOC_OFFSET H_GET_16 +#define SWAP_OUT_RELOC_OFFSET H_PUT_16 - _do_getblong, _do_putblong, _do_getbshort, _do_putbshort, /* data */ - _do_getblong, _do_putblong, _do_getbshort, _do_putbshort, /* hdrs */ +#define RELOC_PROCESSING(relent,reloc,symbols,abfd,section) \ + reloc_processing(relent, reloc, symbols, abfd, section) - {_bfd_dummy_target, coff_object_p, /* bfd_check_format */ - bfd_generic_archive_p, _bfd_dummy_target}, - {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */ - bfd_false}, +static void +reloc_processing (arelent *relent, + struct internal_reloc *reloc, + asymbol **symbols, + bfd *abfd, + asection *section) +{ + relent->address = reloc->r_vaddr; + rtype2howto (relent, reloc); + + if (((int) reloc->r_symndx) > 0) + { + relent->sym_ptr_ptr = symbols + obj_convert (abfd)[reloc->r_symndx]; + } + else + { + relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; + } + + relent->addend = reloc->r_offset; + relent->address -= section->vma; +} - JUMP_TABLE(coff) +#define BADMAG(x) MC88BADMAG(x) - }; +#ifndef bfd_pe_print_pdata +#define bfd_pe_print_pdata NULL +#endif +#include "coffcode.h" +#undef coff_write_armap +CREATE_BIG_COFF_TARGET_VEC (m88k_coff_bcs_vec, "coff-m88kbcs", 0, 0, '_', NULL, COFF_SWAP_TABLE)