/* BFD back-end for Hitachi H8/500 COFF binaries. Copyright 1993 Free Software Foundation, Inc. Contributed by Cygnus Support. Written by Steve Chamberlain, . 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., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include "bfd.h" #include "sysdep.h" #include "libbfd.h" #include "obstack.h" #include "coff/h8500.h" #include "coff/internal.h" #include "libcoff.h" #include "seclet.h" extern bfd_error_vector_type bfd_error_vector; static reloc_howto_type r_imm8 = HOWTO (R_H8500_IMM8, 0, 1, 8, false, 0, true, true, 0, "r_imm8", true, 0x000000ff, 0x000000ff, false); static reloc_howto_type r_imm16 = HOWTO (R_H8500_IMM16, 0, 1, 16, false, 0, true, true, 0, "r_imm16", true, 0x0000ffff, 0x0000ffff, false); static reloc_howto_type r_imm24 = HOWTO (R_H8500_IMM24, 0, 1, 24, false, 0, true, true, 0, "r_imm24", true, 0x00ffffff, 0x00ffffff, false); static reloc_howto_type r_imm32 = HOWTO (R_H8500_IMM32, 0, 1, 32, false, 0, true, true, 0, "r_imm32", true, 0xffffffff, 0xffffffff, false); static reloc_howto_type r_high8 = HOWTO (R_H8500_HIGH8, 0, 1, 8, false, 0, true, true, 0, "r_high8", true, 0x000000ff, 0x000000ff, false); static reloc_howto_type r_low16 = HOWTO (R_H8500_LOW16, 0, 1, 16, false, 0, true, true, 0, "r_low16", true, 0x0000ffff, 0x0000ffff, false); static reloc_howto_type r_pcrel8 = HOWTO (R_H8500_PCREL8, 0, 1, 8, true, 0, true, true, 0, "r_pcrel8", true, 0, 0, true); static reloc_howto_type r_pcrel16 = HOWTO (R_H8500_PCREL16, 0, 1, 16, true, 0, true, true, 0, "r_pcrel16", true, 0, 0, true); static reloc_howto_type r_high16 = HOWTO (R_H8500_HIGH16, 0, 1, 8, false, 0, true, true, 0, "r_high16", true, 0x000ffff, 0x0000ffff, false); /* Turn a howto into a reloc number */ static int coff_h8500_select_reloc (howto) reloc_howto_type *howto; { return howto->type; } #define SELECT_RELOC(x,howto) x= coff_h8500_select_reloc(howto) #define BADMAG(x) H8500BADMAG(x) #define H8500 1 /* Customize coffcode.h */ #define __A_MAGIC_SET__ /* Code to swap in the reloc */ #define SWAP_IN_RELOC_OFFSET bfd_h_get_32 #define SWAP_OUT_RELOC_OFFSET bfd_h_put_32 #define SWAP_OUT_RELOC_EXTRA(abfd, src, dst) \ dst->r_stuff[0] = 'S'; \ dst->r_stuff[1] = 'C'; /* Code to turn a r_type into a howto ptr, uses the above howto table */ static void rtype2howto(internal, dst) arelent * internal; struct internal_reloc *dst; { switch (dst->r_type) { default: printf ("BAD 0x%x\n", dst->r_type); case R_H8500_IMM8: internal->howto = &r_imm8; break; case R_H8500_IMM16: internal->howto = &r_imm16; break; case R_H8500_IMM24: internal->howto = &r_imm24; break; case R_H8500_IMM32: internal->howto = &r_imm32; break; case R_H8500_PCREL8: internal->howto = &r_pcrel8; break; case R_H8500_PCREL16: internal->howto = &r_pcrel16; break; case R_H8500_HIGH8: internal->howto = &r_high8; break; case R_H8500_HIGH16: internal->howto = &r_high16; break; case R_H8500_LOW16: internal->howto = &r_low16; break; } } #define RTYPE2HOWTO(internal, relocentry) rtype2howto(internal,relocentry) /* Perform any necessaru magic to the addend in a reloc entry */ #define CALC_ADDEND(abfd, symbol, ext_reloc, cache_ptr) \ cache_ptr->addend = ext_reloc.r_offset; #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 (reloc->r_symndx > 0) { relent->sym_ptr_ptr = symbols + obj_convert (abfd)[reloc->r_symndx]; } else { relent->sym_ptr_ptr = &(bfd_abs_symbol); } relent->addend = reloc->r_offset; relent->address -= section->vma; } static void extra_case (in_abfd, seclet, reloc, data, src_ptr, dst_ptr) bfd *in_abfd; bfd_seclet_type *seclet; arelent *reloc; bfd_byte *data; unsigned int *src_ptr; unsigned int *dst_ptr; { bfd_byte *d = data+*dst_ptr; switch (reloc->howto->type) { case R_H8500_IMM8: bfd_put_8 (in_abfd, bfd_coff_reloc16_get_value (reloc, seclet), d); (*dst_ptr) += 1; (*src_ptr) += 1; break; case R_H8500_HIGH8: bfd_put_8 (in_abfd, (bfd_coff_reloc16_get_value (reloc, seclet)>>16), d ); (*dst_ptr) += 1; (*src_ptr) += 1; break; case R_H8500_IMM16: bfd_put_16 (in_abfd, bfd_coff_reloc16_get_value (reloc, seclet) , d ); (*dst_ptr) += 2; (*src_ptr) += 2; break; case R_H8500_LOW16: bfd_put_16 (in_abfd, bfd_coff_reloc16_get_value (reloc, seclet) , d); (*dst_ptr) += 2; (*src_ptr) += 2; break; case R_H8500_HIGH16: bfd_put_16 (in_abfd, bfd_coff_reloc16_get_value (reloc, seclet)>>16 , d); (*dst_ptr) += 2; (*src_ptr) += 2; break; case R_H8500_IMM24: { int v = bfd_coff_reloc16_get_value(reloc, seclet); int o = bfd_get_32(in_abfd, data+ *dst_ptr -1); v = (v & 0x00ffffff) | (o & 0xff00000); bfd_put_32 (in_abfd, v, data + *dst_ptr -1); (*dst_ptr) +=3; (*src_ptr)+=3;; } break; case R_H8500_IMM32: { int v = bfd_coff_reloc16_get_value(reloc, seclet); bfd_put_32 (in_abfd, v, data + *dst_ptr); (*dst_ptr) +=4; (*src_ptr)+=4;; } break; case R_H8500_PCREL8: { bfd_vma dst = bfd_coff_reloc16_get_value (reloc, seclet); bfd_vma dot = seclet->offset + *dst_ptr + seclet->u.indirect.section->output_section->vma; int gap = dst - dot - 1; /* -1 since were in the odd byte of the word and the pc's been incremented */ if (gap > 128 || gap < -128) { bfd_error_vector.reloc_value_truncated (reloc, seclet); } bfd_put_8 (in_abfd, gap, data + *dst_ptr); (*dst_ptr)++; (*src_ptr)++; break; } case R_H8500_PCREL16: { bfd_vma dst = bfd_coff_reloc16_get_value (reloc, seclet); bfd_vma dot = seclet->offset + *dst_ptr + seclet->u.indirect.section->output_section->vma; int gap = dst - dot - 1; /* -1 since were in the odd byte of the word and the pc's been incremented */ if (gap > 32767 || gap < -32768) { bfd_error_vector.reloc_value_truncated (reloc, seclet); } bfd_put_16 (in_abfd, gap, data + *dst_ptr); (*dst_ptr)+=2; (*src_ptr)+=2; break; } default: abort (); } } #define coff_reloc16_extra_cases extra_case #include "coffcode.h" #undef coff_bfd_get_relocated_section_contents #undef coff_bfd_relax_section #define coff_bfd_get_relocated_section_contents bfd_coff_reloc16_get_relocated_section_contents #define coff_bfd_relax_section bfd_coff_reloc16_relax_section bfd_target h8500coff_vec = { "coff-h8500", /* 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 */ '_', /* leading symbol underscore */ '/', /* ar_pad_char */ 15, /* ar_max_namelen */ 1, /* minimum section alignment */ _do_getb64, _do_getb_signed_64, _do_putb64, _do_getb32, _do_getb_signed_32, _do_putb32, _do_getb16, _do_getb_signed_16, _do_putb16, /* data */ _do_getb64, _do_getb_signed_64, _do_putb64, _do_getb32, _do_getb_signed_32, _do_putb32, _do_getb16, _do_getb_signed_16, _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, };