740 lines
29 KiB
C
740 lines
29 KiB
C
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/* Support for 32-bit PowerPC NLM (NetWare Loadable Module)
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Copyright (C) 1994 Free Software Foundation, Inc.
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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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#include "bfd.h"
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#include "sysdep.h"
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#include "libbfd.h"
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#define ARCH_SIZE 32
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#include "nlm/ppc-ext.h"
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#define Nlm_External_Fixed_Header Nlm32_powerpc_External_Fixed_Header
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#include "libnlm.h"
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static boolean nlm_powerpc_backend_object_p
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PARAMS ((bfd *));
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static boolean nlm_powerpc_write_prefix
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PARAMS ((bfd *));
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static boolean nlm_powerpc_read_reloc
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PARAMS ((bfd *, nlmNAME(symbol_type) *, asection **, arelent *));
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static boolean nlm_powerpc_mangle_relocs
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PARAMS ((bfd *, asection *, PTR, bfd_vma, bfd_size_type));
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static boolean nlm_powerpc_read_import
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PARAMS ((bfd *, nlmNAME(symbol_type) *));
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static boolean nlm_powerpc_write_import
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PARAMS ((bfd *, asection *, arelent *));
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static boolean nlm_powerpc_write_external
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PARAMS ((bfd *, bfd_size_type, asymbol *, struct reloc_and_sec *));
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/* PowerPC NLM's have a prefix header before the standard NLM. This
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function reads it in, verifies the version, and seeks the bfd to
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the location before the regular NLM header. */
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static boolean
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nlm_powerpc_backend_object_p (abfd)
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bfd *abfd;
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{
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struct nlm32_powerpc_external_prefix_header s;
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if (bfd_read ((PTR) &s, sizeof s, 1, abfd) != sizeof s)
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return false;
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if (memcmp (s.signature, NLM32_POWERPC_SIGNATURE, sizeof s.signature) != 0
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|| bfd_h_get_32 (abfd, s.headerVersion) != NLM32_POWERPC_HEADER_VERSION)
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return false;
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return true;
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}
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/* Write out the prefix. */
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static boolean
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nlm_powerpc_write_prefix (abfd)
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bfd *abfd;
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{
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struct nlm32_powerpc_external_prefix_header s;
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memset (&s, 0, sizeof s);
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memcpy (s.signature, NLM32_POWERPC_SIGNATURE, sizeof s.signature);
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bfd_h_put_32 (abfd, (bfd_vma) NLM32_POWERPC_HEADER_VERSION, s.headerVersion);
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bfd_h_put_32 (abfd, (bfd_vma) 0, s.origins);
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/* FIXME: What should we do about the date? */
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if (bfd_write ((PTR) &s, sizeof s, 1, abfd) != sizeof s)
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return false;
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return true;
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}
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/* How to process the various reloc types. PowerPC NLMs use XCOFF
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reloc types, and I have just copied the XCOFF reloc table here. */
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static reloc_howto_type nlm_powerpc_howto_table[] =
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{
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/* Standard 32 bit relocation. */
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HOWTO (0, /* type */
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0, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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32, /* bitsize */
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false, /* pc_relative */
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0, /* bitpos */
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complain_overflow_bitfield, /* complain_on_overflow */
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0, /* special_function */
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"R_POS", /* name */
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true, /* partial_inplace */
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0xffffffff, /* src_mask */
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0xffffffff, /* dst_mask */
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false), /* pcrel_offset */
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/* 32 bit relocation, but store negative value. */
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HOWTO (1, /* type */
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0, /* rightshift */
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-2, /* size (0 = byte, 1 = short, 2 = long) */
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32, /* bitsize */
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false, /* pc_relative */
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0, /* bitpos */
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complain_overflow_bitfield, /* complain_on_overflow */
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0, /* special_function */
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"R_NEG", /* name */
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true, /* partial_inplace */
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0xffffffff, /* src_mask */
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0xffffffff, /* dst_mask */
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false), /* pcrel_offset */
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/* 32 bit PC relative relocation. */
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HOWTO (2, /* type */
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0, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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32, /* bitsize */
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true, /* pc_relative */
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0, /* bitpos */
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complain_overflow_signed, /* complain_on_overflow */
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0, /* special_function */
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"R_REL", /* name */
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true, /* partial_inplace */
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0xffffffff, /* src_mask */
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0xffffffff, /* dst_mask */
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false), /* pcrel_offset */
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/* 16 bit TOC relative relocation. */
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HOWTO (3, /* type */
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0, /* rightshift */
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1, /* size (0 = byte, 1 = short, 2 = long) */
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16, /* bitsize */
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false, /* pc_relative */
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0, /* bitpos */
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complain_overflow_signed, /* complain_on_overflow */
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0, /* special_function */
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"R_TOC", /* name */
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true, /* partial_inplace */
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0xffff, /* src_mask */
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0xffff, /* dst_mask */
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false), /* pcrel_offset */
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/* I don't really know what this is. */
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HOWTO (4, /* type */
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1, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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32, /* bitsize */
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false, /* pc_relative */
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0, /* bitpos */
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complain_overflow_bitfield, /* complain_on_overflow */
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0, /* special_function */
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"R_RTB", /* name */
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true, /* partial_inplace */
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0xffffffff, /* src_mask */
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0xffffffff, /* dst_mask */
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false), /* pcrel_offset */
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/* External TOC relative symbol. */
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HOWTO (5, /* type */
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0, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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16, /* bitsize */
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false, /* pc_relative */
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0, /* bitpos */
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complain_overflow_bitfield, /* complain_on_overflow */
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0, /* special_function */
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"R_GL", /* name */
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true, /* partial_inplace */
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0xffff, /* src_mask */
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0xffff, /* dst_mask */
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false), /* pcrel_offset */
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/* Local TOC relative symbol. */
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HOWTO (6, /* type */
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0, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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16, /* bitsize */
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false, /* pc_relative */
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0, /* bitpos */
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complain_overflow_bitfield, /* complain_on_overflow */
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0, /* special_function */
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"R_TCL", /* name */
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true, /* partial_inplace */
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0xffff, /* src_mask */
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0xffff, /* dst_mask */
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false), /* pcrel_offset */
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{ 7 },
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/* Non modifiable absolute branch. */
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HOWTO (8, /* type */
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0, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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26, /* bitsize */
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false, /* pc_relative */
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0, /* bitpos */
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complain_overflow_bitfield, /* complain_on_overflow */
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0, /* special_function */
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"R_BA", /* name */
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true, /* partial_inplace */
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0x3fffffc, /* src_mask */
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0x3fffffc, /* dst_mask */
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false), /* pcrel_offset */
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{ 9 },
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/* Non modifiable relative branch. */
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HOWTO (0xa, /* type */
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0, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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26, /* bitsize */
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true, /* pc_relative */
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0, /* bitpos */
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complain_overflow_signed, /* complain_on_overflow */
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0, /* special_function */
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"R_BR", /* name */
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true, /* partial_inplace */
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0x3fffffc, /* src_mask */
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0x3fffffc, /* dst_mask */
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false), /* pcrel_offset */
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{ 0xb },
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/* Indirect load. */
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HOWTO (0xc, /* type */
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0, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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16, /* bitsize */
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false, /* pc_relative */
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0, /* bitpos */
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complain_overflow_bitfield, /* complain_on_overflow */
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0, /* special_function */
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"R_RL", /* name */
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true, /* partial_inplace */
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0xffff, /* src_mask */
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0xffff, /* dst_mask */
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false), /* pcrel_offset */
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/* Load address. */
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HOWTO (0xd, /* type */
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0, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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16, /* bitsize */
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false, /* pc_relative */
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0, /* bitpos */
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complain_overflow_bitfield, /* complain_on_overflow */
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0, /* special_function */
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"R_RLA", /* name */
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true, /* partial_inplace */
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0xffff, /* src_mask */
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0xffff, /* dst_mask */
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false), /* pcrel_offset */
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{ 0xe },
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/* Non-relocating reference. */
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HOWTO (0xf, /* type */
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0, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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32, /* bitsize */
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false, /* pc_relative */
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0, /* bitpos */
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complain_overflow_bitfield, /* complain_on_overflow */
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0, /* special_function */
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"R_REF", /* name */
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false, /* partial_inplace */
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0, /* src_mask */
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0, /* dst_mask */
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false), /* pcrel_offset */
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{ 0x10 },
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{ 0x11 },
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/* TOC relative indirect load. */
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HOWTO (0x12, /* type */
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0, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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16, /* bitsize */
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false, /* pc_relative */
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0, /* bitpos */
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complain_overflow_bitfield, /* complain_on_overflow */
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0, /* special_function */
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"R_TRL", /* name */
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true, /* partial_inplace */
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0xffff, /* src_mask */
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0xffff, /* dst_mask */
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false), /* pcrel_offset */
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/* TOC relative load address. */
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HOWTO (0x13, /* type */
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0, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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16, /* bitsize */
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false, /* pc_relative */
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0, /* bitpos */
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complain_overflow_bitfield, /* complain_on_overflow */
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0, /* special_function */
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"R_TRLA", /* name */
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true, /* partial_inplace */
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0xffff, /* src_mask */
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0xffff, /* dst_mask */
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false), /* pcrel_offset */
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/* Modifiable relative branch. */
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HOWTO (0x14, /* type */
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1, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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32, /* bitsize */
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false, /* pc_relative */
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0, /* bitpos */
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complain_overflow_bitfield, /* complain_on_overflow */
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0, /* special_function */
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"R_RRTBI", /* name */
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true, /* partial_inplace */
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0xffffffff, /* src_mask */
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0xffffffff, /* dst_mask */
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false), /* pcrel_offset */
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/* Modifiable absolute branch. */
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HOWTO (0x15, /* type */
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1, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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32, /* bitsize */
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false, /* pc_relative */
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0, /* bitpos */
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complain_overflow_bitfield, /* complain_on_overflow */
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0, /* special_function */
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"R_RRTBA", /* name */
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true, /* partial_inplace */
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0xffffffff, /* src_mask */
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0xffffffff, /* dst_mask */
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false), /* pcrel_offset */
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/* Modifiable call absolute indirect. */
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HOWTO (0x16, /* type */
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0, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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16, /* bitsize */
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false, /* pc_relative */
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0, /* bitpos */
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complain_overflow_bitfield, /* complain_on_overflow */
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0, /* special_function */
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"R_CAI", /* name */
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|
|
true, /* partial_inplace */
|
|||
|
|
0xffff, /* src_mask */
|
|||
|
|
0xffff, /* dst_mask */
|
|||
|
|
false), /* pcrel_offset */
|
|||
|
|
|
|||
|
|
/* Modifiable call relative. */
|
|||
|
|
HOWTO (0x17, /* type */
|
|||
|
|
0, /* rightshift */
|
|||
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
|||
|
|
16, /* bitsize */
|
|||
|
|
false, /* pc_relative */
|
|||
|
|
0, /* bitpos */
|
|||
|
|
complain_overflow_bitfield, /* complain_on_overflow */
|
|||
|
|
0, /* special_function */
|
|||
|
|
"R_REL", /* name */
|
|||
|
|
true, /* partial_inplace */
|
|||
|
|
0xffff, /* src_mask */
|
|||
|
|
0xffff, /* dst_mask */
|
|||
|
|
false), /* pcrel_offset */
|
|||
|
|
|
|||
|
|
/* Modifiable branch absolute. */
|
|||
|
|
HOWTO (0x18, /* type */
|
|||
|
|
0, /* rightshift */
|
|||
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
|||
|
|
16, /* bitsize */
|
|||
|
|
false, /* pc_relative */
|
|||
|
|
0, /* bitpos */
|
|||
|
|
complain_overflow_bitfield, /* complain_on_overflow */
|
|||
|
|
0, /* special_function */
|
|||
|
|
"R_RBA", /* name */
|
|||
|
|
true, /* partial_inplace */
|
|||
|
|
0xffff, /* src_mask */
|
|||
|
|
0xffff, /* dst_mask */
|
|||
|
|
false), /* pcrel_offset */
|
|||
|
|
|
|||
|
|
/* Modifiable branch absolute. */
|
|||
|
|
HOWTO (0x19, /* type */
|
|||
|
|
0, /* rightshift */
|
|||
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
|||
|
|
16, /* bitsize */
|
|||
|
|
false, /* pc_relative */
|
|||
|
|
0, /* bitpos */
|
|||
|
|
complain_overflow_bitfield, /* complain_on_overflow */
|
|||
|
|
0, /* special_function */
|
|||
|
|
"R_RBAC", /* name */
|
|||
|
|
true, /* partial_inplace */
|
|||
|
|
0xffff, /* src_mask */
|
|||
|
|
0xffff, /* dst_mask */
|
|||
|
|
false), /* pcrel_offset */
|
|||
|
|
|
|||
|
|
/* Modifiable branch relative. */
|
|||
|
|
HOWTO (0x1a, /* type */
|
|||
|
|
0, /* rightshift */
|
|||
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
|||
|
|
26, /* bitsize */
|
|||
|
|
false, /* pc_relative */
|
|||
|
|
0, /* bitpos */
|
|||
|
|
complain_overflow_signed, /* complain_on_overflow */
|
|||
|
|
0, /* special_function */
|
|||
|
|
"R_REL", /* name */
|
|||
|
|
true, /* partial_inplace */
|
|||
|
|
0xffff, /* src_mask */
|
|||
|
|
0xffff, /* dst_mask */
|
|||
|
|
false), /* pcrel_offset */
|
|||
|
|
|
|||
|
|
/* Modifiable branch absolute. */
|
|||
|
|
HOWTO (0x1b, /* type */
|
|||
|
|
0, /* rightshift */
|
|||
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
|||
|
|
16, /* bitsize */
|
|||
|
|
false, /* pc_relative */
|
|||
|
|
0, /* bitpos */
|
|||
|
|
complain_overflow_bitfield, /* complain_on_overflow */
|
|||
|
|
0, /* special_function */
|
|||
|
|
"R_REL", /* name */
|
|||
|
|
true, /* partial_inplace */
|
|||
|
|
0xffff, /* src_mask */
|
|||
|
|
0xffff, /* dst_mask */
|
|||
|
|
false) /* pcrel_offset */
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
#define HOWTO_COUNT (sizeof nlm_powerpc_howto_table \
|
|||
|
|
/ sizeof nlm_powerpc_howto_table[0])
|
|||
|
|
|
|||
|
|
/* Read a PowerPC NLM reloc. */
|
|||
|
|
|
|||
|
|
static boolean
|
|||
|
|
nlm_powerpc_read_reloc (abfd, sym, secp, rel)
|
|||
|
|
bfd *abfd;
|
|||
|
|
nlmNAME(symbol_type) *sym;
|
|||
|
|
asection **secp;
|
|||
|
|
arelent *rel;
|
|||
|
|
{
|
|||
|
|
struct nlm32_powerpc_external_reloc ext;
|
|||
|
|
bfd_vma l_vaddr;
|
|||
|
|
unsigned long l_symndx;
|
|||
|
|
int l_rtype;
|
|||
|
|
int l_rsecnm;
|
|||
|
|
|
|||
|
|
/* Read the reloc from the file. */
|
|||
|
|
if (bfd_read (&ext, sizeof ext, 1, abfd) != sizeof ext)
|
|||
|
|
{
|
|||
|
|
bfd_set_error (bfd_error_system_call);
|
|||
|
|
return false;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/* Swap in the fields. */
|
|||
|
|
l_vaddr = bfd_h_get_32 (abfd, ext.l_vaddr);
|
|||
|
|
l_symndx = bfd_h_get_32 (abfd, ext.l_symndx);
|
|||
|
|
l_rtype = bfd_h_get_16 (abfd, ext.l_rtype);
|
|||
|
|
l_rsecnm = bfd_h_get_16 (abfd, ext.l_rsecnm);
|
|||
|
|
|
|||
|
|
/* Work out the arelent fields. */
|
|||
|
|
if (sym != NULL)
|
|||
|
|
{
|
|||
|
|
/* This is an import. sym_ptr_ptr is filled in by
|
|||
|
|
nlm_canonicalize_reloc. */
|
|||
|
|
rel->sym_ptr_ptr = NULL;
|
|||
|
|
}
|
|||
|
|
else
|
|||
|
|
{
|
|||
|
|
asection *sec;
|
|||
|
|
|
|||
|
|
if (l_symndx == 0)
|
|||
|
|
sec = bfd_get_section_by_name (abfd, NLM_CODE_NAME);
|
|||
|
|
else if (l_symndx == 1)
|
|||
|
|
sec = bfd_get_section_by_name (abfd, NLM_INITIALIZED_DATA_NAME);
|
|||
|
|
else if (l_symndx == 2)
|
|||
|
|
sec = bfd_get_section_by_name (abfd, NLM_UNINITIALIZED_DATA_NAME);
|
|||
|
|
else
|
|||
|
|
{
|
|||
|
|
bfd_set_error (bfd_error_bad_value);
|
|||
|
|
return false;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
rel->sym_ptr_ptr = sec->symbol_ptr_ptr;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
rel->address = l_vaddr;
|
|||
|
|
rel->addend = 0;
|
|||
|
|
|
|||
|
|
BFD_ASSERT ((l_rtype & 0xff) < HOWTO_COUNT);
|
|||
|
|
|
|||
|
|
rel->howto = nlm_powerpc_howto_table + (l_rtype & 0xff);
|
|||
|
|
|
|||
|
|
BFD_ASSERT (rel->howto->name != NULL
|
|||
|
|
&& ((l_rtype & 0x8000) != 0
|
|||
|
|
? (rel->howto->complain_on_overflow
|
|||
|
|
== complain_overflow_signed)
|
|||
|
|
: (rel->howto->complain_on_overflow
|
|||
|
|
== complain_overflow_bitfield))
|
|||
|
|
&& ((l_rtype >> 8) & 0x1f) == rel->howto->bitsize - 1);
|
|||
|
|
|
|||
|
|
if (l_rsecnm == 0)
|
|||
|
|
*secp = bfd_get_section_by_name (abfd, NLM_CODE_NAME);
|
|||
|
|
else if (l_rsecnm == 1)
|
|||
|
|
*secp = bfd_get_section_by_name (abfd, NLM_INITIALIZED_DATA_NAME);
|
|||
|
|
else
|
|||
|
|
{
|
|||
|
|
bfd_set_error (bfd_error_bad_value);
|
|||
|
|
return false;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
return true;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/* Mangle PowerPC NLM relocs for output. */
|
|||
|
|
|
|||
|
|
static boolean
|
|||
|
|
nlm_powerpc_mangle_relocs (abfd, sec, data, offset, count)
|
|||
|
|
bfd *abfd;
|
|||
|
|
asection *sec;
|
|||
|
|
PTR data;
|
|||
|
|
bfd_vma offset;
|
|||
|
|
bfd_size_type count;
|
|||
|
|
{
|
|||
|
|
return true;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/* Read a PowerPC NLM import record */
|
|||
|
|
|
|||
|
|
static boolean
|
|||
|
|
nlm_powerpc_read_import (abfd, sym)
|
|||
|
|
bfd *abfd;
|
|||
|
|
nlmNAME(symbol_type) *sym;
|
|||
|
|
{
|
|||
|
|
struct nlm_relent *nlm_relocs; /* relocation records for symbol */
|
|||
|
|
bfd_size_type rcount; /* number of relocs */
|
|||
|
|
bfd_byte temp[NLM_TARGET_LONG_SIZE]; /* temporary 32-bit value */
|
|||
|
|
unsigned char symlength; /* length of symbol name */
|
|||
|
|
|
|||
|
|
if (bfd_read ((PTR) &symlength, sizeof (symlength), 1, abfd)
|
|||
|
|
!= sizeof (symlength))
|
|||
|
|
{
|
|||
|
|
bfd_set_error (bfd_error_system_call);
|
|||
|
|
return (false);
|
|||
|
|
}
|
|||
|
|
sym -> symbol.the_bfd = abfd;
|
|||
|
|
sym -> symbol.name = bfd_alloc (abfd, symlength + 1);
|
|||
|
|
if (bfd_read ((PTR) sym -> symbol.name, symlength, 1, abfd)
|
|||
|
|
!= symlength)
|
|||
|
|
{
|
|||
|
|
bfd_set_error (bfd_error_system_call);
|
|||
|
|
return (false);
|
|||
|
|
}
|
|||
|
|
sym -> symbol.flags = 0;
|
|||
|
|
sym -> symbol.value = 0;
|
|||
|
|
sym -> symbol.section = &bfd_und_section;
|
|||
|
|
if (bfd_read ((PTR) temp, sizeof (temp), 1, abfd) != sizeof (temp))
|
|||
|
|
{
|
|||
|
|
bfd_set_error (bfd_error_system_call);
|
|||
|
|
return (false);
|
|||
|
|
}
|
|||
|
|
rcount = bfd_h_get_32 (abfd, temp);
|
|||
|
|
nlm_relocs = ((struct nlm_relent *)
|
|||
|
|
bfd_alloc (abfd, rcount * sizeof (struct nlm_relent)));
|
|||
|
|
if (nlm_relocs == (struct nlm_relent *) NULL)
|
|||
|
|
{
|
|||
|
|
bfd_set_error (bfd_error_no_memory);
|
|||
|
|
return false;
|
|||
|
|
}
|
|||
|
|
sym -> relocs = nlm_relocs;
|
|||
|
|
sym -> rcnt = 0;
|
|||
|
|
while (sym -> rcnt < rcount)
|
|||
|
|
{
|
|||
|
|
asection *section;
|
|||
|
|
|
|||
|
|
if (nlm_powerpc_read_reloc (abfd, sym, §ion,
|
|||
|
|
&nlm_relocs -> reloc)
|
|||
|
|
== false)
|
|||
|
|
return false;
|
|||
|
|
nlm_relocs -> section = section;
|
|||
|
|
nlm_relocs++;
|
|||
|
|
sym -> rcnt++;
|
|||
|
|
}
|
|||
|
|
return true;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/* Write a PowerPC NLM reloc. */
|
|||
|
|
|
|||
|
|
static boolean
|
|||
|
|
nlm_powerpc_write_import (abfd, sec, rel)
|
|||
|
|
bfd *abfd;
|
|||
|
|
asection *sec;
|
|||
|
|
arelent *rel;
|
|||
|
|
{
|
|||
|
|
struct nlm32_powerpc_external_reloc ext;
|
|||
|
|
asymbol *sym;
|
|||
|
|
asection *symsec;
|
|||
|
|
unsigned long l_symndx;
|
|||
|
|
int l_rtype;
|
|||
|
|
int l_rsecnm;
|
|||
|
|
const reloc_howto_type *howto;
|
|||
|
|
|
|||
|
|
bfd_h_put_32 (abfd, rel->address, ext.l_vaddr);
|
|||
|
|
|
|||
|
|
sym = *rel->sym_ptr_ptr;
|
|||
|
|
symsec = bfd_get_section (sym);
|
|||
|
|
if (symsec == &bfd_und_section)
|
|||
|
|
l_symndx = 0;
|
|||
|
|
else if (symsec == bfd_get_section_by_name (abfd, NLM_CODE_NAME))
|
|||
|
|
l_symndx = 0;
|
|||
|
|
else if (symsec == bfd_get_section_by_name (abfd, NLM_INITIALIZED_DATA_NAME))
|
|||
|
|
l_symndx = 1;
|
|||
|
|
else if (symsec == bfd_get_section_by_name (abfd,
|
|||
|
|
NLM_UNINITIALIZED_DATA_NAME))
|
|||
|
|
l_symndx = 2;
|
|||
|
|
else
|
|||
|
|
{
|
|||
|
|
bfd_set_error (bfd_error_bad_value);
|
|||
|
|
return false;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
bfd_h_put_32 (abfd, (bfd_vma) l_symndx, ext.l_symndx);
|
|||
|
|
|
|||
|
|
for (howto = nlm_powerpc_howto_table;
|
|||
|
|
howto < nlm_powerpc_howto_table + HOWTO_COUNT;
|
|||
|
|
howto++)
|
|||
|
|
{
|
|||
|
|
if (howto->rightshift == rel->howto->rightshift
|
|||
|
|
&& howto->size == rel->howto->size
|
|||
|
|
&& howto->bitsize == rel->howto->bitsize
|
|||
|
|
&& howto->pc_relative == rel->howto->pc_relative
|
|||
|
|
&& howto->bitpos == rel->howto->bitpos
|
|||
|
|
&& howto->partial_inplace == rel->howto->partial_inplace
|
|||
|
|
&& howto->src_mask == rel->howto->src_mask
|
|||
|
|
&& howto->dst_mask == rel->howto->dst_mask
|
|||
|
|
&& howto->pcrel_offset == rel->howto->pcrel_offset)
|
|||
|
|
break;
|
|||
|
|
}
|
|||
|
|
if (howto >= nlm_powerpc_howto_table + HOWTO_COUNT)
|
|||
|
|
{
|
|||
|
|
bfd_set_error (bfd_error_bad_value);
|
|||
|
|
return false;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
l_rtype = howto->type;
|
|||
|
|
if (howto->complain_on_overflow == complain_overflow_signed)
|
|||
|
|
l_rtype |= 0x8000;
|
|||
|
|
l_rtype |= (howto->bitsize - 1) << 8;
|
|||
|
|
bfd_h_put_16 (abfd, (bfd_vma) l_rtype, ext.l_rtype);
|
|||
|
|
|
|||
|
|
if (sec == bfd_get_section_by_name (abfd, NLM_CODE_NAME))
|
|||
|
|
l_rsecnm = 0;
|
|||
|
|
else if (sec == bfd_get_section_by_name (abfd, NLM_INITIALIZED_DATA_NAME))
|
|||
|
|
l_rsecnm = 1;
|
|||
|
|
else
|
|||
|
|
{
|
|||
|
|
bfd_set_error (bfd_error_bad_value);
|
|||
|
|
return false;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
bfd_h_put_16 (abfd, (bfd_vma) l_rsecnm, ext.l_rsecnm);
|
|||
|
|
|
|||
|
|
if (bfd_write (&ext, sizeof ext, 1, abfd) != sizeof ext)
|
|||
|
|
return false;
|
|||
|
|
|
|||
|
|
return true;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/* Write a PowerPC NLM external symbol. */
|
|||
|
|
|
|||
|
|
static boolean
|
|||
|
|
nlm_powerpc_write_external (abfd, count, sym, relocs)
|
|||
|
|
bfd *abfd;
|
|||
|
|
bfd_size_type count;
|
|||
|
|
asymbol *sym;
|
|||
|
|
struct reloc_and_sec *relocs;
|
|||
|
|
{
|
|||
|
|
int i;
|
|||
|
|
bfd_byte len;
|
|||
|
|
unsigned char temp[NLM_TARGET_LONG_SIZE];
|
|||
|
|
|
|||
|
|
len = strlen (sym->name);
|
|||
|
|
if ((bfd_write (&len, sizeof (bfd_byte), 1, abfd) != sizeof(bfd_byte))
|
|||
|
|
|| bfd_write (sym->name, len, 1, abfd) != len)
|
|||
|
|
{
|
|||
|
|
bfd_set_error (bfd_error_system_call);
|
|||
|
|
return false;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
bfd_put_32 (abfd, count, temp);
|
|||
|
|
if (bfd_write (temp, sizeof(temp), 1, abfd) != sizeof (temp))
|
|||
|
|
{
|
|||
|
|
bfd_set_error (bfd_error_system_call);
|
|||
|
|
return false;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
for (i = 0; i < count; i++)
|
|||
|
|
{
|
|||
|
|
if (nlm_powerpc_write_import (abfd, relocs[i].sec,
|
|||
|
|
relocs[i].rel) == false)
|
|||
|
|
return false;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
return true;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
#include "nlmswap.h"
|
|||
|
|
|
|||
|
|
static const struct nlm_backend_data nlm32_powerpc_backend =
|
|||
|
|
{
|
|||
|
|
"NetWare PowerPC Module \032",
|
|||
|
|
sizeof (Nlm32_powerpc_External_Fixed_Header),
|
|||
|
|
sizeof (struct nlm32_powerpc_external_prefix_header),
|
|||
|
|
bfd_arch_powerpc,
|
|||
|
|
0,
|
|||
|
|
false,
|
|||
|
|
nlm_powerpc_backend_object_p,
|
|||
|
|
nlm_powerpc_write_prefix,
|
|||
|
|
nlm_powerpc_read_reloc,
|
|||
|
|
nlm_powerpc_mangle_relocs,
|
|||
|
|
nlm_powerpc_read_import,
|
|||
|
|
nlm_powerpc_write_import,
|
|||
|
|
0, /* set_public_section */
|
|||
|
|
0, /* get_public_offset */
|
|||
|
|
nlm_swap_fixed_header_in,
|
|||
|
|
nlm_swap_fixed_header_out,
|
|||
|
|
nlm_powerpc_write_external,
|
|||
|
|
0, /* write_export */
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
#define TARGET_BIG_NAME "nlm32-powerpc"
|
|||
|
|
#define TARGET_BIG_SYM nlmNAME(powerpc_vec)
|
|||
|
|
#define TARGET_BACKEND_DATA &nlm32_powerpc_backend
|
|||
|
|
|
|||
|
|
#include "nlm-target.h"
|