6812b6077e
Removed _bfd_debug_info_start, _bfd_debug_info_end and _bfd_debug_info_accumulate, which were never used. (BFD_JUMP_TABLE_GENERIC, BFD_JUMP_TABLE_COPY): Defined. (BFD_JUMP_TABLE_CORE, BFD_JUMP_TABLE_ARCHIVE): Defined. (BFD_JUMP_TABLE_SYMBOLS, BFD_JUMP_TABLE_RELOCS): Defined. (BFD_JUMP_TABLE_WRITE, BFD_JUMP_TABLE_LINK): Defined. * All backends: Changed to use the new BFD_JUMP_TABLE_* macros rather than the single JUMP_TABLE macro. Removed many of the weird macro definitions needed to support the monolithic JUMP_TABLE. * bfd-in.h (JUMP_TABLE): Removed. * libbfd-in.h: Define a bunch of macros, and declare a few functions, for use with the new BFD_JUMP_TABLE_* macros. * libbfd.c (_bfd_dummy_new_section_hook): Removed. (bfd_false): Set bfd_error_invalid_operation. (bfd_nullvoidptr): Likewise. (bfd_n1): New function. (_bfd_nocore_core_file_matches_executable_p): Renamed from _bfd_dummy_core_file_matches_executable_p. (_bfd_nocore_core_file_failing_command): Similar rename. Set bfd_error_invalid_operation. (_bfd_nocore_core_file_failing_signal): Likewise. (_bfd_generic_get_section_contents): Renamed from bfd_generic_get_section_contents. Changed all callers. (_bfd_generic_set_section_contents): Similar rename. * ieee.c: #if 0 out ieee_bfd_debug_info_start, ieee_bfd_debug_info_end, ieee_bfd_debug_info_accumulate. They were never called. * bfd-in2.h: Rebuilt. * libbfd.h: Rebuilt.
242 lines
7.8 KiB
C
242 lines
7.8 KiB
C
/* BFD back-end for Intel 960 COFF files.
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Copyright (C) 1990, 1991, 1992, 1993 Free Software Foundation, Inc.
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Written by Cygnus Support.
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This file is part of BFD, the Binary File Descriptor library.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#define I960 1
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#define BADMAG(x) I960BADMAG(x)
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#include "bfd.h"
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#include "sysdep.h"
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#include "libbfd.h"
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#include "obstack.h"
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#include "coff/i960.h"
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#include "coff/internal.h"
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#include "libcoff.h" /* to allow easier abstraction-breaking */
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static bfd_reloc_status_type optcall_callback
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PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
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#define COFF_LONG_FILENAMES
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#define CALLS 0x66003800 /* Template for 'calls' instruction */
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#define BAL 0x0b000000 /* Template for 'bal' instruction */
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#define BAL_MASK 0x00ffffff
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static bfd_reloc_status_type
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optcall_callback (abfd, reloc_entry, symbol_in, data,
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ignore_input_section, ignore_bfd, error_message)
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bfd *abfd;
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arelent *reloc_entry;
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asymbol *symbol_in;
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PTR data;
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asection *ignore_input_section;
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bfd *ignore_bfd;
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char **error_message;
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{
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/* This item has already been relocated correctly, but we may be
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* able to patch in yet better code - done by digging out the
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* correct info on this symbol */
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bfd_reloc_status_type result;
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coff_symbol_type *cs = coffsymbol(symbol_in);
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/* So the target symbol has to be of coff type, and the symbol
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has to have the correct native information within it */
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if ((bfd_asymbol_flavour(&cs->symbol) != bfd_target_coff_flavour)
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|| (cs->native == (combined_entry_type *)NULL))
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{
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/* This is interesting, consider the case where we're outputting coff
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from a mix n match input, linking from coff to a symbol defined in a
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bout file will cause this match to be true. Should I complain? This
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will only work if the bout symbol is non leaf. */
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*error_message =
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(char *) "uncertain calling convention for non-COFF symbol";
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result = bfd_reloc_dangerous;
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}
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else
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{
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switch (cs->native->u.syment.n_sclass)
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{
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case C_LEAFSTAT:
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case C_LEAFEXT:
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/* This is a call to a leaf procedure, replace instruction with a bal
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to the correct location. */
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{
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union internal_auxent *aux = &((cs->native+2)->u.auxent);
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int word = bfd_get_32(abfd, (bfd_byte *)data + reloc_entry->address);
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int olf = (aux->x_bal.x_balntry - cs->native->u.syment.n_value);
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BFD_ASSERT(cs->native->u.syment.n_numaux==2);
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/* We replace the original call instruction with a bal to
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the bal entry point - the offset of which is described in
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the 2nd auxent of the original symbol. We keep the native
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sym and auxents untouched, so the delta between the two
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is the offset of the bal entry point. */
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word = ((word + olf) & BAL_MASK) | BAL;
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bfd_put_32(abfd, word, (bfd_byte *) data + reloc_entry->address);
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}
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result = bfd_reloc_ok;
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break;
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case C_SCALL:
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/* This is a call to a system call, replace with a calls to # */
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BFD_ASSERT(0);
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result = bfd_reloc_ok;
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break;
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default:
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result = bfd_reloc_ok;
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break;
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}
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}
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return result;
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}
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static reloc_howto_type howto_rellong =
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{ (unsigned int) R_RELLONG, 0, 2, 32,false, 0,
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complain_overflow_bitfield, 0,"rellong", true, 0xffffffff,
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0xffffffff};
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static reloc_howto_type howto_iprmed =
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{ R_IPRMED, 0, 2, 24,true,0, complain_overflow_signed,0,
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"iprmed ", true, 0x00ffffff, 0x00ffffff};
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static reloc_howto_type howto_optcall =
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{ R_OPTCALL, 0,2,24,true,0, complain_overflow_signed,
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optcall_callback, "optcall", true, 0x00ffffff, 0x00ffffff};
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static const reloc_howto_type *
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coff_i960_reloc_type_lookup (abfd, code)
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bfd *abfd;
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bfd_reloc_code_real_type code;
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{
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switch (code)
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{
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default:
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return 0;
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case BFD_RELOC_I960_CALLJ:
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return &howto_optcall;
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case BFD_RELOC_32:
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return &howto_rellong;
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case BFD_RELOC_24_PCREL:
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return &howto_iprmed;
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}
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}
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/* The real code is in coffcode.h */
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#define RTYPE2HOWTO(cache_ptr, dst) \
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{ \
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reloc_howto_type *howto_ptr; \
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switch ((dst)->r_type) { \
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case 17: howto_ptr = &howto_rellong; break; \
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case 25: howto_ptr = &howto_iprmed; break; \
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case 27: howto_ptr = &howto_optcall; break; \
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default: howto_ptr = 0; break; \
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} \
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cache_ptr->howto = howto_ptr; \
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}
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#include "coffcode.h"
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#undef coff_bfd_reloc_type_lookup
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#define coff_bfd_reloc_type_lookup coff_i960_reloc_type_lookup
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bfd_target icoff_little_vec =
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{
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"coff-Intel-little", /* name */
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bfd_target_coff_flavour,
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false, /* data byte order is little */
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false, /* header byte order is little */
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(HAS_RELOC | EXEC_P | /* object flags */
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HAS_LINENO | HAS_DEBUG |
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HAS_SYMS | HAS_LOCALS | WP_TEXT),
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(SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
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0, /* leading underscore */
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'/', /* ar_pad_char */
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15, /* ar_max_namelen */
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3, /* minimum alignment power */
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bfd_getl64, bfd_getl_signed_64, bfd_putl64,
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bfd_getl32, bfd_getl_signed_32, bfd_putl32,
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bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */
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bfd_getl64, bfd_getl_signed_64, bfd_putl64,
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bfd_getl32, bfd_getl_signed_32, bfd_putl32,
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bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */
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{_bfd_dummy_target, coff_object_p, /* bfd_check_format */
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bfd_generic_archive_p, _bfd_dummy_target},
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{bfd_false, coff_mkobject, /* bfd_set_format */
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_bfd_generic_mkarchive, bfd_false},
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{bfd_false, coff_write_object_contents, /* bfd_write_contents */
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_bfd_write_archive_contents, bfd_false},
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BFD_JUMP_TABLE_GENERIC (coff),
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BFD_JUMP_TABLE_COPY (coff),
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BFD_JUMP_TABLE_CORE (_bfd_nocore),
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BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
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BFD_JUMP_TABLE_SYMBOLS (coff),
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BFD_JUMP_TABLE_RELOCS (coff),
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BFD_JUMP_TABLE_WRITE (coff),
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BFD_JUMP_TABLE_LINK (coff),
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COFF_SWAP_TABLE,
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};
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bfd_target icoff_big_vec =
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{
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"coff-Intel-big", /* name */
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bfd_target_coff_flavour,
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false, /* data byte order is little */
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true, /* header byte order is big */
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(HAS_RELOC | EXEC_P | /* object flags */
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HAS_LINENO | HAS_DEBUG |
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HAS_SYMS | HAS_LOCALS | WP_TEXT),
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(SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
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0, /* leading underscore */
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'/', /* ar_pad_char */
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15, /* ar_max_namelen */
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3, /* minimum alignment power */
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bfd_getl64, bfd_getl_signed_64, bfd_putl64,
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bfd_getl32, bfd_getl_signed_32, bfd_putl32,
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bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */
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bfd_getb64, bfd_getb_signed_64, bfd_putb64,
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bfd_getb32, bfd_getb_signed_32, bfd_putb32,
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bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */
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{_bfd_dummy_target, coff_object_p, /* bfd_check_format */
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bfd_generic_archive_p, _bfd_dummy_target},
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{bfd_false, coff_mkobject, /* bfd_set_format */
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_bfd_generic_mkarchive, bfd_false},
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{bfd_false, coff_write_object_contents, /* bfd_write_contents */
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_bfd_write_archive_contents, bfd_false},
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BFD_JUMP_TABLE_GENERIC (coff),
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BFD_JUMP_TABLE_COPY (coff),
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BFD_JUMP_TABLE_CORE (_bfd_nocore),
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BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
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BFD_JUMP_TABLE_SYMBOLS (coff),
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BFD_JUMP_TABLE_RELOCS (coff),
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BFD_JUMP_TABLE_WRITE (coff),
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BFD_JUMP_TABLE_LINK (coff),
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COFF_SWAP_TABLE,
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};
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