X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=bfd%2Fcoff-m88k.c;h=a8b2c55e319b252c91a19068e459284a3c935cbb;hb=7fe958be01489f0309b1b822b7cb191ccafe23af;hp=d4c10bf2018d733355ce4127b9d94c62e073697b;hpb=5685fb5005aa272e7760c96bc410287fde2a5da9;p=deliverable%2Fbinutils-gdb.git diff --git a/bfd/coff-m88k.c b/bfd/coff-m88k.c index d4c10bf201..a8b2c55e31 100644 --- a/bfd/coff-m88k.c +++ b/bfd/coff-m88k.c @@ -1,5 +1,7 @@ -/* Motorola 88000 COFF support ("Binary Compatability Standard") for BFD. - Copyright (C) 1990-1991 Free Software Foundation, Inc. +/* BFD back-end for Motorola 88000 COFF "Binary Compatability Standard" files. + Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1997, 1998, 1999, 2000, + 2001, 2002, 2003 + Free Software Foundation, Inc. Written by Cygnus Support. This file is part of BFD, the Binary File Descriptor library. @@ -16,102 +18,274 @@ 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., 675 Mass Ave, Cambridge, MA 02139, USA. */ - -/* $Id$ */ +Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #define M88 1 /* Customize various include files */ #include "bfd.h" #include "sysdep.h" #include "libbfd.h" -#include "obstack.h" -#include "coff-m88k.h" -#include "internalcoff.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_type -DEFUN(howto_hvrt16,(abfd, reloc_entry, symbol_in, data, ignore_input_section), -bfd *abfd AND -arelent *reloc_entry AND -asymbol *symbol_in AND -unsigned char *data AND -asection *ignore_input_section) +static bfd_boolean m88k_is_local_label_name PARAMS ((bfd *, const char *)); +static bfd_reloc_status_type m88k_special_reloc + PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); +static void rtype2howto PARAMS ((arelent *, struct internal_reloc *)); +static void reloc_processing + PARAMS ((arelent *, struct internal_reloc *, asymbol **, bfd *, asection *)); + +#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (3) + +#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 bfd_boolean +m88k_is_local_label_name (abfd, name) + bfd *abfd ATTRIBUTE_UNUSED; + const char *name; { - long relocation; - bfd_vma addr = reloc_entry->address; - long x = bfd_get_16(abfd, (bfd_byte *)data + addr); + return name[0] == '@'; +} + +static bfd_reloc_status_type +m88k_special_reloc (abfd, reloc_entry, symbol, data, + input_section, output_bfd, error_message) + bfd *abfd; + arelent *reloc_entry; + asymbol *symbol; + PTR 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 targetted 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; - HOWTO_PREPARE(relocation, symbol_in); + if (relocation) + bfd_put_16 (abfd, (bfd_vma) relocation, + (unsigned char *) data + addr); + } - x = (x + relocation + reloc_entry->addend) >> 16; + /* 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; - bfd_put_16(abfd, x, (bfd_byte *)data + addr); 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 */ -static reloc_howto_type howto_table[] = -{ - 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), + 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 */ }; +/* Code to turn an external r_type into a pointer to an entry in the + above howto table. */ +static void +rtype2howto (cache_ptr, dst) + arelent *cache_ptr; + struct internal_reloc *dst; +{ + 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); + } +} + +#define RTYPE2HOWTO(cache_ptr, dst) rtype2howto (cache_ptr, dst) + +/* Code to swap in the reloc offset */ +#define SWAP_IN_RELOC_OFFSET H_GET_16 +#define SWAP_OUT_RELOC_OFFSET H_PUT_16 + +#define RELOC_PROCESSING(relent,reloc,symbols,abfd,section) \ + reloc_processing(relent, reloc, symbols, abfd, section) + +static void +reloc_processing (relent, reloc, symbols, abfd, section) + 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; +} #define BADMAG(x) MC88BADMAG(x) #include "coffcode.h" #undef coff_write_armap -bfd_target m88kbcs_vec = -{ - "m88kbcs", /* name */ - bfd_target_coff_flavour, - true, /* data byte order is big */ - true, /* header byte order is big */ - - (HAS_RELOC | EXEC_P | /* object flags */ - HAS_LINENO | HAS_DEBUG | - HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT), - - (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */ - '/', /* ar_pad_char */ - 15, /* ar_max_namelen */ - 3, /* default alignment power */ - _do_getb64, _do_putb64, _do_getb32, _do_putb32, _do_getb16, _do_putb16, /* data */ - _do_getb64, _do_putb64, _do_getb32, _do_putb32, _do_getb16, _do_putb16, /* hdrs */ - - {_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}, - {bfd_false, coff_write_object_contents, /* bfd_write_contents */ - _bfd_write_archive_contents, bfd_false}, - - JUMP_TABLE(coff), - COFF_SWAP_TABLE -}; +CREATE_BIG_COFF_TARGET_VEC (m88kbcs_vec, "coff-m88kbcs", 0, 0, '_', NULL, COFF_SWAP_TABLE)