/* Support for 32-bit Alpha NLM (NetWare Loadable Module)
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/* Support for 32-bit Alpha NLM (NetWare Loadable Module)
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Copyright 1993, 1994, 2000, 2001, 2002, 2003, 2004, 2005, 2007
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Copyright 1993, 1994, 2000, 2001, 2002, 2003, 2004, 2005, 2007
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Free Software Foundation, Inc.
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Free Software Foundation, Inc.
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Written by Ian Lance Taylor, Cygnus Support.
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Written by Ian Lance Taylor, Cygnus Support.
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This file is part of BFD, the Binary File Descriptor library.
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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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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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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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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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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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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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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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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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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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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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MA 02110-1301, USA. */
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MA 02110-1301, USA. */
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/* This file describes the 32 bit Alpha NLM format. You might think
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/* This file describes the 32 bit Alpha NLM format. You might think
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that an Alpha chip would use a 64 bit format, but, for some reason,
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that an Alpha chip would use a 64 bit format, but, for some reason,
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it doesn't. */
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it doesn't. */
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#include "sysdep.h"
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#include "sysdep.h"
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#include "bfd.h"
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#include "bfd.h"
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#include "libbfd.h"
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#include "libbfd.h"
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#define ARCH_SIZE 32
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#define ARCH_SIZE 32
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#include "nlm/alpha-ext.h"
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#include "nlm/alpha-ext.h"
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#define Nlm_External_Fixed_Header Nlm32_alpha_External_Fixed_Header
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#define Nlm_External_Fixed_Header Nlm32_alpha_External_Fixed_Header
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#include "libnlm.h"
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#include "libnlm.h"
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/* Alpha NLM's have a prefix header before the standard NLM. This
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/* Alpha 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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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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the location before the regular NLM header. */
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static bfd_boolean
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static bfd_boolean
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nlm_alpha_backend_object_p (bfd *abfd)
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nlm_alpha_backend_object_p (bfd *abfd)
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{
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{
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struct nlm32_alpha_external_prefix_header s;
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struct nlm32_alpha_external_prefix_header s;
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file_ptr size;
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file_ptr size;
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if (bfd_bread (&s, (bfd_size_type) sizeof s, abfd) != sizeof s)
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if (bfd_bread (&s, (bfd_size_type) sizeof s, abfd) != sizeof s)
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return FALSE;
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return FALSE;
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if (H_GET_32 (abfd, s.magic) != NLM32_ALPHA_MAGIC)
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if (H_GET_32 (abfd, s.magic) != NLM32_ALPHA_MAGIC)
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return FALSE;
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return FALSE;
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/* FIXME: Should we check the format number? */
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/* FIXME: Should we check the format number? */
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/* Skip to the end of the header. */
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/* Skip to the end of the header. */
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size = H_GET_32 (abfd, s.size);
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size = H_GET_32 (abfd, s.size);
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if (bfd_seek (abfd, size, SEEK_SET) != 0)
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if (bfd_seek (abfd, size, SEEK_SET) != 0)
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return FALSE;
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return FALSE;
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return TRUE;
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return TRUE;
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}
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}
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/* Write out the prefix. */
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/* Write out the prefix. */
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static bfd_boolean
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static bfd_boolean
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nlm_alpha_write_prefix (bfd *abfd)
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nlm_alpha_write_prefix (bfd *abfd)
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{
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{
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struct nlm32_alpha_external_prefix_header s;
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struct nlm32_alpha_external_prefix_header s;
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memset (&s, 0, sizeof s);
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memset (&s, 0, sizeof s);
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H_PUT_32 (abfd, NLM32_ALPHA_MAGIC, s.magic);
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H_PUT_32 (abfd, NLM32_ALPHA_MAGIC, s.magic);
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H_PUT_32 (abfd, 2, s.format);
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H_PUT_32 (abfd, 2, s.format);
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H_PUT_32 (abfd, sizeof s, s.size);
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H_PUT_32 (abfd, sizeof s, s.size);
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if (bfd_bwrite (&s, (bfd_size_type) sizeof s, abfd) != sizeof s)
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if (bfd_bwrite (&s, (bfd_size_type) sizeof s, abfd) != sizeof s)
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return FALSE;
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return FALSE;
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return TRUE;
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return TRUE;
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}
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}
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#define ONES(n) (((bfd_vma) 1 << ((n) - 1) << 1) - 1)
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#define ONES(n) (((bfd_vma) 1 << ((n) - 1) << 1) - 1)
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/* How to process the various reloc types. */
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/* How to process the various reloc types. */
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static reloc_howto_type nlm32_alpha_howto_table[] =
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static reloc_howto_type nlm32_alpha_howto_table[] =
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{
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{
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/* Reloc type 0 is ignored by itself. However, it appears after a
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/* Reloc type 0 is ignored by itself. However, it appears after a
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GPDISP reloc to identify the location where the low order 16 bits
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GPDISP reloc to identify the location where the low order 16 bits
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of the gp register are loaded. */
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of the gp register are loaded. */
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HOWTO (ALPHA_R_IGNORE, /* Type. */
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HOWTO (ALPHA_R_IGNORE, /* Type. */
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0, /* Rightshift. */
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0, /* Rightshift. */
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0, /* Size (0 = byte, 1 = short, 2 = long). */
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0, /* Size (0 = byte, 1 = short, 2 = long). */
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8, /* Bitsize. */
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8, /* Bitsize. */
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FALSE, /* PC_relative. */
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FALSE, /* PC_relative. */
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0, /* Bitpos. */
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0, /* Bitpos. */
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complain_overflow_dont, /* Complain_on_overflow. */
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complain_overflow_dont, /* Complain_on_overflow. */
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0, /* Special_function. */
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0, /* Special_function. */
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"IGNORE", /* Name. */
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"IGNORE", /* Name. */
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FALSE, /* Partial_inplace. */
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FALSE, /* Partial_inplace. */
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0, /* Source mask. */
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0, /* Source mask. */
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0, /* Dest mask. */
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0, /* Dest mask. */
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FALSE), /* PCrel_offset. */
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FALSE), /* PCrel_offset. */
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/* A 32 bit reference to a symbol. */
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/* A 32 bit reference to a symbol. */
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HOWTO (ALPHA_R_REFLONG, /* Type. */
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HOWTO (ALPHA_R_REFLONG, /* Type. */
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0, /* Rightshift. */
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0, /* Rightshift. */
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2, /* Size (0 = byte, 1 = short, 2 = long). */
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2, /* Size (0 = byte, 1 = short, 2 = long). */
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32, /* Bitsize. */
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32, /* Bitsize. */
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FALSE, /* PC_relative. */
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FALSE, /* PC_relative. */
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0, /* Bitpos. */
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0, /* Bitpos. */
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complain_overflow_bitfield, /* Complain_on_overflow. */
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complain_overflow_bitfield, /* Complain_on_overflow. */
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0, /* Special_function. */
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0, /* Special_function. */
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"REFLONG", /* Name. */
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"REFLONG", /* Name. */
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TRUE, /* Partial_inplace. */
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TRUE, /* Partial_inplace. */
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0xffffffff, /* Source mask. */
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0xffffffff, /* Source mask. */
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0xffffffff, /* Dest mask. */
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0xffffffff, /* Dest mask. */
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FALSE), /* PCrel_offset. */
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FALSE), /* PCrel_offset. */
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/* A 64 bit reference to a symbol. */
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/* A 64 bit reference to a symbol. */
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HOWTO (ALPHA_R_REFQUAD, /* Type. */
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HOWTO (ALPHA_R_REFQUAD, /* Type. */
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0, /* Rightshift. */
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0, /* Rightshift. */
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4, /* Size (0 = byte, 1 = short, 2 = long). */
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4, /* Size (0 = byte, 1 = short, 2 = long). */
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64, /* Bitsize. */
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64, /* Bitsize. */
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FALSE, /* PC_relative. */
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FALSE, /* PC_relative. */
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0, /* Bitpos. */
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0, /* Bitpos. */
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complain_overflow_bitfield, /* Complain_on_overflow. */
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complain_overflow_bitfield, /* Complain_on_overflow. */
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0, /* Special_function. */
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0, /* Special_function. */
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"REFQUAD", /* Name. */
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"REFQUAD", /* Name. */
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TRUE, /* Partial_inplace. */
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TRUE, /* Partial_inplace. */
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ONES (64), /* Source mask. */
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ONES (64), /* Source mask. */
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ONES (64), /* Dest mask. */
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ONES (64), /* Dest mask. */
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FALSE), /* PCrel_offset. */
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FALSE), /* PCrel_offset. */
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/* A 32 bit GP relative offset. This is just like REFLONG except
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/* A 32 bit GP relative offset. This is just like REFLONG except
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that when the value is used the value of the gp register will be
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that when the value is used the value of the gp register will be
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added in. */
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added in. */
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HOWTO (ALPHA_R_GPREL32, /* Type. */
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HOWTO (ALPHA_R_GPREL32, /* Type. */
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0, /* Rightshift. */
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0, /* Rightshift. */
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2, /* Size (0 = byte, 1 = short, 2 = long). */
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2, /* Size (0 = byte, 1 = short, 2 = long). */
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32, /* Bitsize. */
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32, /* Bitsize. */
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FALSE, /* PC_relative. */
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FALSE, /* PC_relative. */
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0, /* Bitpos. */
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0, /* Bitpos. */
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complain_overflow_bitfield, /* Complain_on_overflow. */
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complain_overflow_bitfield, /* Complain_on_overflow. */
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0, /* Special_function. */
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0, /* Special_function. */
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"GPREL32", /* Name. */
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"GPREL32", /* Name. */
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TRUE, /* Partial_inplace. */
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TRUE, /* Partial_inplace. */
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0xffffffff, /* Source mask. */
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0xffffffff, /* Source mask. */
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0xffffffff, /* Dest mask. */
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0xffffffff, /* Dest mask. */
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FALSE), /* PCrel_offset. */
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FALSE), /* PCrel_offset. */
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/* Used for an instruction that refers to memory off the GP
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/* Used for an instruction that refers to memory off the GP
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register. The offset is 16 bits of the 32 bit instruction. This
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register. The offset is 16 bits of the 32 bit instruction. This
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reloc always seems to be against the .lita section. */
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reloc always seems to be against the .lita section. */
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HOWTO (ALPHA_R_LITERAL, /* Type. */
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HOWTO (ALPHA_R_LITERAL, /* Type. */
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0, /* Rightshift. */
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0, /* Rightshift. */
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2, /* Size (0 = byte, 1 = short, 2 = long). */
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2, /* Size (0 = byte, 1 = short, 2 = long). */
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16, /* Bitsize. */
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16, /* Bitsize. */
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FALSE, /* PC_relative. */
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FALSE, /* PC_relative. */
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0, /* Bitpos. */
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0, /* Bitpos. */
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complain_overflow_signed, /* Complain_on_overflow. */
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complain_overflow_signed, /* Complain_on_overflow. */
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0, /* Special_function. */
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0, /* Special_function. */
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"LITERAL", /* Name. */
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"LITERAL", /* Name. */
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TRUE, /* Partial_inplace. */
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TRUE, /* Partial_inplace. */
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0xffff, /* Source mask. */
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0xffff, /* Source mask. */
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0xffff, /* Dest mask. */
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0xffff, /* Dest mask. */
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FALSE), /* PCrel_offset. */
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FALSE), /* PCrel_offset. */
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/* This reloc only appears immediately following a LITERAL reloc.
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/* This reloc only appears immediately following a LITERAL reloc.
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It identifies a use of the literal. It seems that the linker can
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It identifies a use of the literal. It seems that the linker can
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use this to eliminate a portion of the .lita section. The symbol
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use this to eliminate a portion of the .lita section. The symbol
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index is special: 1 means the literal address is in the base
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index is special: 1 means the literal address is in the base
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register of a memory format instruction; 2 means the literal
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register of a memory format instruction; 2 means the literal
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address is in the byte offset register of a byte-manipulation
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address is in the byte offset register of a byte-manipulation
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instruction; 3 means the literal address is in the target
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instruction; 3 means the literal address is in the target
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register of a jsr instruction. This does not actually do any
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register of a jsr instruction. This does not actually do any
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relocation. */
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relocation. */
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HOWTO (ALPHA_R_LITUSE, /* Type. */
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HOWTO (ALPHA_R_LITUSE, /* Type. */
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0, /* Rightshift. */
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0, /* Rightshift. */
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2, /* Size (0 = byte, 1 = short, 2 = long). */
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2, /* Size (0 = byte, 1 = short, 2 = long). */
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32, /* Bitsize. */
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32, /* Bitsize. */
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FALSE, /* PC_relative. */
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FALSE, /* PC_relative. */
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0, /* Bitpos. */
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0, /* Bitpos. */
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complain_overflow_dont, /* Complain_on_overflow. */
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complain_overflow_dont, /* Complain_on_overflow. */
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0, /* Special_function. */
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0, /* Special_function. */
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"LITUSE", /* Name. */
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"LITUSE", /* Name. */
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FALSE, /* Partial_inplace. */
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FALSE, /* Partial_inplace. */
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0, /* Source mask. */
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0, /* Source mask. */
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0, /* Dest mask. */
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0, /* Dest mask. */
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FALSE), /* PCrel_offset. */
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FALSE), /* PCrel_offset. */
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/* Load the gp register. This is always used for a ldah instruction
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/* Load the gp register. This is always used for a ldah instruction
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which loads the upper 16 bits of the gp register. The next reloc
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which loads the upper 16 bits of the gp register. The next reloc
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will be an IGNORE reloc which identifies the location of the lda
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will be an IGNORE reloc which identifies the location of the lda
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instruction which loads the lower 16 bits. The symbol index of
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instruction which loads the lower 16 bits. The symbol index of
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the GPDISP instruction appears to actually be the number of bytes
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the GPDISP instruction appears to actually be the number of bytes
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between the ldah and lda instructions. This gives two different
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between the ldah and lda instructions. This gives two different
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ways to determine where the lda instruction is; I don't know why
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ways to determine where the lda instruction is; I don't know why
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both are used. The value to use for the relocation is the
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both are used. The value to use for the relocation is the
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difference between the GP value and the current location; the
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difference between the GP value and the current location; the
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load will always be done against a register holding the current
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load will always be done against a register holding the current
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address. */
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address. */
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HOWTO (ALPHA_R_GPDISP, /* Type. */
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HOWTO (ALPHA_R_GPDISP, /* Type. */
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16, /* Rightshift. */
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16, /* Rightshift. */
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2, /* Size (0 = byte, 1 = short, 2 = long). */
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2, /* Size (0 = byte, 1 = short, 2 = long). */
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16, /* Bitsize. */
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16, /* Bitsize. */
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TRUE, /* PC_relative. */
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TRUE, /* PC_relative. */
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0, /* Bitpos. */
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0, /* Bitpos. */
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complain_overflow_dont, /* Complain_on_overflow. */
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complain_overflow_dont, /* Complain_on_overflow. */
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0, /* Special_function. */
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0, /* Special_function. */
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"GPDISP", /* Name. */
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"GPDISP", /* Name. */
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TRUE, /* Partial_inplace. */
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TRUE, /* Partial_inplace. */
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0xffff, /* Source mask. */
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0xffff, /* Source mask. */
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0xffff, /* Dest mask. */
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0xffff, /* Dest mask. */
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TRUE), /* PCrel_offset. */
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TRUE), /* PCrel_offset. */
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/* A 21 bit branch. The native assembler generates these for
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/* A 21 bit branch. The native assembler generates these for
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branches within the text segment, and also fills in the PC
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branches within the text segment, and also fills in the PC
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relative offset in the instruction. It seems to me that this
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relative offset in the instruction. It seems to me that this
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reloc, unlike the others, is not partial_inplace. */
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reloc, unlike the others, is not partial_inplace. */
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HOWTO (ALPHA_R_BRADDR, /* Type. */
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HOWTO (ALPHA_R_BRADDR, /* Type. */
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2, /* Rightshift. */
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2, /* Rightshift. */
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2, /* Size (0 = byte, 1 = short, 2 = long). */
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2, /* Size (0 = byte, 1 = short, 2 = long). */
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21, /* Bitsize. */
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21, /* Bitsize. */
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TRUE, /* PC_relative. */
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TRUE, /* PC_relative. */
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0, /* Bitpos. */
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0, /* Bitpos. */
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complain_overflow_signed, /* Complain_on_overflow. */
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complain_overflow_signed, /* Complain_on_overflow. */
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0, /* Special_function. */
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0, /* Special_function. */
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"BRADDR", /* Name. */
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"BRADDR", /* Name. */
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FALSE, /* Partial_inplace. */
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FALSE, /* Partial_inplace. */
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0, /* Source mask. */
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0, /* Source mask. */
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0x1fffff, /* Dest mask. */
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0x1fffff, /* Dest mask. */
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FALSE), /* PCrel_offset. */
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FALSE), /* PCrel_offset. */
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|
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/* A hint for a jump to a register. */
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/* A hint for a jump to a register. */
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HOWTO (ALPHA_R_HINT, /* Type. */
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HOWTO (ALPHA_R_HINT, /* Type. */
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2, /* Rightshift. */
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2, /* Rightshift. */
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2, /* Size (0 = byte, 1 = short, 2 = long). */
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2, /* Size (0 = byte, 1 = short, 2 = long). */
|
14, /* Bitsize. */
|
14, /* Bitsize. */
|
FALSE, /* PC_relative. */
|
FALSE, /* PC_relative. */
|
0, /* Bitpos. */
|
0, /* Bitpos. */
|
complain_overflow_dont, /* Complain_on_overflow. */
|
complain_overflow_dont, /* Complain_on_overflow. */
|
0, /* Special_function. */
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0, /* Special_function. */
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"HINT", /* Name. */
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"HINT", /* Name. */
|
TRUE, /* Partial_inplace. */
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TRUE, /* Partial_inplace. */
|
0x3fff, /* Source mask. */
|
0x3fff, /* Source mask. */
|
0x3fff, /* Dest mask. */
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0x3fff, /* Dest mask. */
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FALSE), /* PCrel_offset. */
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FALSE), /* PCrel_offset. */
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|
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/* 16 bit PC relative offset. */
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/* 16 bit PC relative offset. */
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HOWTO (ALPHA_R_SREL16, /* Type. */
|
HOWTO (ALPHA_R_SREL16, /* Type. */
|
0, /* Rightshift. */
|
0, /* Rightshift. */
|
1, /* Size (0 = byte, 1 = short, 2 = long). */
|
1, /* Size (0 = byte, 1 = short, 2 = long). */
|
16, /* Bitsize. */
|
16, /* Bitsize. */
|
TRUE, /* PC_relative. */
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TRUE, /* PC_relative. */
|
0, /* Bitpos. */
|
0, /* Bitpos. */
|
complain_overflow_signed, /* Complain_on_overflow. */
|
complain_overflow_signed, /* Complain_on_overflow. */
|
0, /* Special_function. */
|
0, /* Special_function. */
|
"SREL16", /* Name. */
|
"SREL16", /* Name. */
|
TRUE, /* Partial_inplace. */
|
TRUE, /* Partial_inplace. */
|
0xffff, /* Source mask. */
|
0xffff, /* Source mask. */
|
0xffff, /* Dest mask. */
|
0xffff, /* Dest mask. */
|
FALSE), /* PCrel_offset. */
|
FALSE), /* PCrel_offset. */
|
|
|
/* 32 bit PC relative offset. */
|
/* 32 bit PC relative offset. */
|
HOWTO (ALPHA_R_SREL32, /* Type. */
|
HOWTO (ALPHA_R_SREL32, /* Type. */
|
0, /* Rightshift. */
|
0, /* Rightshift. */
|
2, /* Size (0 = byte, 1 = short, 2 = long). */
|
2, /* Size (0 = byte, 1 = short, 2 = long). */
|
32, /* Bitsize. */
|
32, /* Bitsize. */
|
TRUE, /* PC_relative. */
|
TRUE, /* PC_relative. */
|
0, /* Bitpos. */
|
0, /* Bitpos. */
|
complain_overflow_signed, /* Complain_on_overflow. */
|
complain_overflow_signed, /* Complain_on_overflow. */
|
0, /* Special_function. */
|
0, /* Special_function. */
|
"SREL32", /* Name. */
|
"SREL32", /* Name. */
|
TRUE, /* Partial_inplace. */
|
TRUE, /* Partial_inplace. */
|
0xffffffff, /* Source mask. */
|
0xffffffff, /* Source mask. */
|
0xffffffff, /* Dest mask. */
|
0xffffffff, /* Dest mask. */
|
FALSE), /* PCrel_offset. */
|
FALSE), /* PCrel_offset. */
|
|
|
/* A 64 bit PC relative offset. */
|
/* A 64 bit PC relative offset. */
|
HOWTO (ALPHA_R_SREL64, /* Type. */
|
HOWTO (ALPHA_R_SREL64, /* Type. */
|
0, /* Rightshift. */
|
0, /* Rightshift. */
|
4, /* Size (0 = byte, 1 = short, 2 = long). */
|
4, /* Size (0 = byte, 1 = short, 2 = long). */
|
64, /* Bitsize. */
|
64, /* Bitsize. */
|
TRUE, /* PC_relative. */
|
TRUE, /* PC_relative. */
|
0, /* Bitpos. */
|
0, /* Bitpos. */
|
complain_overflow_signed, /* Complain_on_overflow. */
|
complain_overflow_signed, /* Complain_on_overflow. */
|
0, /* Special_function. */
|
0, /* Special_function. */
|
"SREL64", /* Name. */
|
"SREL64", /* Name. */
|
TRUE, /* Partial_inplace. */
|
TRUE, /* Partial_inplace. */
|
ONES (64), /* Source mask. */
|
ONES (64), /* Source mask. */
|
ONES (64), /* Dest mask. */
|
ONES (64), /* Dest mask. */
|
FALSE), /* PCrel_offset. */
|
FALSE), /* PCrel_offset. */
|
|
|
/* Push a value on the reloc evaluation stack. */
|
/* Push a value on the reloc evaluation stack. */
|
HOWTO (ALPHA_R_OP_PUSH, /* Type. */
|
HOWTO (ALPHA_R_OP_PUSH, /* Type. */
|
0, /* Rightshift. */
|
0, /* Rightshift. */
|
0, /* Size (0 = byte, 1 = short, 2 = long). */
|
0, /* Size (0 = byte, 1 = short, 2 = long). */
|
0, /* Bitsize. */
|
0, /* Bitsize. */
|
FALSE, /* PC_relative. */
|
FALSE, /* PC_relative. */
|
0, /* Bitpos. */
|
0, /* Bitpos. */
|
complain_overflow_dont, /* Complain_on_overflow. */
|
complain_overflow_dont, /* Complain_on_overflow. */
|
0, /* Special_function. */
|
0, /* Special_function. */
|
"OP_PUSH", /* Name. */
|
"OP_PUSH", /* Name. */
|
FALSE, /* Partial_inplace. */
|
FALSE, /* Partial_inplace. */
|
0, /* Source mask. */
|
0, /* Source mask. */
|
0, /* Dest mask. */
|
0, /* Dest mask. */
|
FALSE), /* PCrel_offset. */
|
FALSE), /* PCrel_offset. */
|
|
|
/* Store the value from the stack at the given address. Store it in
|
/* Store the value from the stack at the given address. Store it in
|
a bitfield of size r_size starting at bit position r_offset. */
|
a bitfield of size r_size starting at bit position r_offset. */
|
HOWTO (ALPHA_R_OP_STORE, /* Type. */
|
HOWTO (ALPHA_R_OP_STORE, /* Type. */
|
0, /* Rightshift. */
|
0, /* Rightshift. */
|
4, /* Size (0 = byte, 1 = short, 2 = long). */
|
4, /* Size (0 = byte, 1 = short, 2 = long). */
|
64, /* Bitsize. */
|
64, /* Bitsize. */
|
FALSE, /* PC_relative. */
|
FALSE, /* PC_relative. */
|
0, /* Bitpos. */
|
0, /* Bitpos. */
|
complain_overflow_dont, /* Complain_on_overflow. */
|
complain_overflow_dont, /* Complain_on_overflow. */
|
0, /* Special_function. */
|
0, /* Special_function. */
|
"OP_STORE", /* Name. */
|
"OP_STORE", /* Name. */
|
FALSE, /* Partial_inplace. */
|
FALSE, /* Partial_inplace. */
|
0, /* Source mask. */
|
0, /* Source mask. */
|
ONES (64), /* Dest mask. */
|
ONES (64), /* Dest mask. */
|
FALSE), /* PCrel_offset. */
|
FALSE), /* PCrel_offset. */
|
|
|
/* Subtract the reloc address from the value on the top of the
|
/* Subtract the reloc address from the value on the top of the
|
relocation stack. */
|
relocation stack. */
|
HOWTO (ALPHA_R_OP_PSUB, /* Type. */
|
HOWTO (ALPHA_R_OP_PSUB, /* Type. */
|
0, /* Rightshift. */
|
0, /* Rightshift. */
|
0, /* Size (0 = byte, 1 = short, 2 = long). */
|
0, /* Size (0 = byte, 1 = short, 2 = long). */
|
0, /* Bitsize. */
|
0, /* Bitsize. */
|
FALSE, /* PC_relative. */
|
FALSE, /* PC_relative. */
|
0, /* Bitpos. */
|
0, /* Bitpos. */
|
complain_overflow_dont, /* Complain_on_overflow. */
|
complain_overflow_dont, /* Complain_on_overflow. */
|
0, /* Special_function. */
|
0, /* Special_function. */
|
"OP_PSUB", /* Name. */
|
"OP_PSUB", /* Name. */
|
FALSE, /* Partial_inplace. */
|
FALSE, /* Partial_inplace. */
|
0, /* Source mask. */
|
0, /* Source mask. */
|
0, /* Dest mask. */
|
0, /* Dest mask. */
|
FALSE), /* PCrel_offset. */
|
FALSE), /* PCrel_offset. */
|
|
|
/* Shift the value on the top of the relocation stack right by the
|
/* Shift the value on the top of the relocation stack right by the
|
given value. */
|
given value. */
|
HOWTO (ALPHA_R_OP_PRSHIFT, /* Type. */
|
HOWTO (ALPHA_R_OP_PRSHIFT, /* Type. */
|
0, /* Rightshift. */
|
0, /* Rightshift. */
|
0, /* Size (0 = byte, 1 = short, 2 = long). */
|
0, /* Size (0 = byte, 1 = short, 2 = long). */
|
0, /* Bitsize. */
|
0, /* Bitsize. */
|
FALSE, /* PC_relative. */
|
FALSE, /* PC_relative. */
|
0, /* Bitpos. */
|
0, /* Bitpos. */
|
complain_overflow_dont, /* Complain_on_overflow. */
|
complain_overflow_dont, /* Complain_on_overflow. */
|
0, /* Special_function. */
|
0, /* Special_function. */
|
"OP_PRSHIFT", /* Name. */
|
"OP_PRSHIFT", /* Name. */
|
FALSE, /* Partial_inplace. */
|
FALSE, /* Partial_inplace. */
|
0, /* Source mask. */
|
0, /* Source mask. */
|
0, /* Dest mask. */
|
0, /* Dest mask. */
|
FALSE), /* PCrel_offset. */
|
FALSE), /* PCrel_offset. */
|
|
|
/* Adjust the GP value for a new range in the object file. */
|
/* Adjust the GP value for a new range in the object file. */
|
HOWTO (ALPHA_R_GPVALUE, /* Type. */
|
HOWTO (ALPHA_R_GPVALUE, /* Type. */
|
0, /* Rightshift. */
|
0, /* Rightshift. */
|
0, /* Size (0 = byte, 1 = short, 2 = long). */
|
0, /* Size (0 = byte, 1 = short, 2 = long). */
|
0, /* Bitsize. */
|
0, /* Bitsize. */
|
FALSE, /* PC_relative. */
|
FALSE, /* PC_relative. */
|
0, /* Bitpos. */
|
0, /* Bitpos. */
|
complain_overflow_dont, /* Complain_on_overflow. */
|
complain_overflow_dont, /* Complain_on_overflow. */
|
0, /* Special_function. */
|
0, /* Special_function. */
|
"GPVALUE", /* Name. */
|
"GPVALUE", /* Name. */
|
FALSE, /* Partial_inplace. */
|
FALSE, /* Partial_inplace. */
|
0, /* Source mask. */
|
0, /* Source mask. */
|
0, /* Dest mask. */
|
0, /* Dest mask. */
|
FALSE) /* PCrel_offset. */
|
FALSE) /* PCrel_offset. */
|
};
|
};
|
|
|
static reloc_howto_type nlm32_alpha_nw_howto =
|
static reloc_howto_type nlm32_alpha_nw_howto =
|
HOWTO (ALPHA_R_NW_RELOC, /* Type. */
|
HOWTO (ALPHA_R_NW_RELOC, /* Type. */
|
0, /* Rightshift. */
|
0, /* Rightshift. */
|
0, /* Size (0 = byte, 1 = short, 2 = long). */
|
0, /* Size (0 = byte, 1 = short, 2 = long). */
|
0, /* Bitsize. */
|
0, /* Bitsize. */
|
FALSE, /* PC_relative. */
|
FALSE, /* PC_relative. */
|
0, /* Bitpos. */
|
0, /* Bitpos. */
|
complain_overflow_dont, /* Complain_on_overflow. */
|
complain_overflow_dont, /* Complain_on_overflow. */
|
0, /* Special_function. */
|
0, /* Special_function. */
|
"NW_RELOC", /* Name. */
|
"NW_RELOC", /* Name. */
|
FALSE, /* Partial_inplace. */
|
FALSE, /* Partial_inplace. */
|
0, /* Source mask. */
|
0, /* Source mask. */
|
0, /* Dest mask. */
|
0, /* Dest mask. */
|
FALSE); /* PCrel_offset. */
|
FALSE); /* PCrel_offset. */
|
|
|
/* Read an Alpha NLM reloc. This routine keeps some static data which
|
/* Read an Alpha NLM reloc. This routine keeps some static data which
|
it uses when handling local relocs. This only works correctly
|
it uses when handling local relocs. This only works correctly
|
because all the local relocs are read at once. */
|
because all the local relocs are read at once. */
|
|
|
static bfd_boolean
|
static bfd_boolean
|
nlm_alpha_read_reloc (bfd *abfd,
|
nlm_alpha_read_reloc (bfd *abfd,
|
nlmNAME (symbol_type) *sym,
|
nlmNAME (symbol_type) *sym,
|
asection **secp,
|
asection **secp,
|
arelent *rel)
|
arelent *rel)
|
{
|
{
|
static bfd_vma gp_value;
|
static bfd_vma gp_value;
|
static bfd_vma lita_address;
|
static bfd_vma lita_address;
|
struct nlm32_alpha_external_reloc ext;
|
struct nlm32_alpha_external_reloc ext;
|
bfd_vma r_vaddr;
|
bfd_vma r_vaddr;
|
long r_symndx;
|
long r_symndx;
|
int r_type, r_extern, r_offset, r_size;
|
int r_type, r_extern, r_offset, r_size;
|
asection *code_sec, *data_sec;
|
asection *code_sec, *data_sec;
|
|
|
/* Read the reloc from the file. */
|
/* Read the reloc from the file. */
|
if (bfd_bread (&ext, (bfd_size_type) sizeof ext, abfd) != sizeof ext)
|
if (bfd_bread (&ext, (bfd_size_type) sizeof ext, abfd) != sizeof ext)
|
return FALSE;
|
return FALSE;
|
|
|
/* Swap in the reloc information. */
|
/* Swap in the reloc information. */
|
r_vaddr = H_GET_64 (abfd, ext.r_vaddr);
|
r_vaddr = H_GET_64 (abfd, ext.r_vaddr);
|
r_symndx = H_GET_32 (abfd, ext.r_symndx);
|
r_symndx = H_GET_32 (abfd, ext.r_symndx);
|
|
|
BFD_ASSERT (bfd_little_endian (abfd));
|
BFD_ASSERT (bfd_little_endian (abfd));
|
|
|
r_type = ((ext.r_bits[0] & RELOC_BITS0_TYPE_LITTLE)
|
r_type = ((ext.r_bits[0] & RELOC_BITS0_TYPE_LITTLE)
|
>> RELOC_BITS0_TYPE_SH_LITTLE);
|
>> RELOC_BITS0_TYPE_SH_LITTLE);
|
r_extern = (ext.r_bits[1] & RELOC_BITS1_EXTERN_LITTLE) != 0;
|
r_extern = (ext.r_bits[1] & RELOC_BITS1_EXTERN_LITTLE) != 0;
|
r_offset = ((ext.r_bits[1] & RELOC_BITS1_OFFSET_LITTLE)
|
r_offset = ((ext.r_bits[1] & RELOC_BITS1_OFFSET_LITTLE)
|
>> RELOC_BITS1_OFFSET_SH_LITTLE);
|
>> RELOC_BITS1_OFFSET_SH_LITTLE);
|
/* Ignore the reserved bits. */
|
/* Ignore the reserved bits. */
|
r_size = ((ext.r_bits[3] & RELOC_BITS3_SIZE_LITTLE)
|
r_size = ((ext.r_bits[3] & RELOC_BITS3_SIZE_LITTLE)
|
>> RELOC_BITS3_SIZE_SH_LITTLE);
|
>> RELOC_BITS3_SIZE_SH_LITTLE);
|
|
|
/* Fill in the BFD arelent structure. */
|
/* Fill in the BFD arelent structure. */
|
code_sec = bfd_get_section_by_name (abfd, NLM_CODE_NAME);
|
code_sec = bfd_get_section_by_name (abfd, NLM_CODE_NAME);
|
data_sec = bfd_get_section_by_name (abfd, NLM_INITIALIZED_DATA_NAME);
|
data_sec = bfd_get_section_by_name (abfd, NLM_INITIALIZED_DATA_NAME);
|
if (r_extern)
|
if (r_extern)
|
{
|
{
|
/* External relocations are only used for imports. */
|
/* External relocations are only used for imports. */
|
BFD_ASSERT (sym != NULL);
|
BFD_ASSERT (sym != NULL);
|
/* We don't need to set sym_ptr_ptr for this case. It is set in
|
/* We don't need to set sym_ptr_ptr for this case. It is set in
|
nlm_canonicalize_reloc. */
|
nlm_canonicalize_reloc. */
|
rel->sym_ptr_ptr = NULL;
|
rel->sym_ptr_ptr = NULL;
|
rel->addend = 0;
|
rel->addend = 0;
|
}
|
}
|
else
|
else
|
{
|
{
|
/* Internal relocations are only used for local relocation
|
/* Internal relocations are only used for local relocation
|
fixups. If they are not NW_RELOC or GPDISP or IGNORE, they
|
fixups. If they are not NW_RELOC or GPDISP or IGNORE, they
|
must be against .text or .data. */
|
must be against .text or .data. */
|
BFD_ASSERT (r_type == ALPHA_R_NW_RELOC || sym == NULL);
|
BFD_ASSERT (r_type == ALPHA_R_NW_RELOC || sym == NULL);
|
if (r_type == ALPHA_R_NW_RELOC
|
if (r_type == ALPHA_R_NW_RELOC
|
|| r_type == ALPHA_R_GPDISP
|
|| r_type == ALPHA_R_GPDISP
|
|| r_type == ALPHA_R_IGNORE)
|
|| r_type == ALPHA_R_IGNORE)
|
{
|
{
|
rel->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
|
rel->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
|
rel->addend = 0;
|
rel->addend = 0;
|
}
|
}
|
else if (r_symndx == ALPHA_RELOC_SECTION_TEXT)
|
else if (r_symndx == ALPHA_RELOC_SECTION_TEXT)
|
{
|
{
|
rel->sym_ptr_ptr = code_sec->symbol_ptr_ptr;
|
rel->sym_ptr_ptr = code_sec->symbol_ptr_ptr;
|
BFD_ASSERT (bfd_get_section_vma (abfd, code_sec) == 0);
|
BFD_ASSERT (bfd_get_section_vma (abfd, code_sec) == 0);
|
rel->addend = 0;
|
rel->addend = 0;
|
}
|
}
|
else if (r_symndx == ALPHA_RELOC_SECTION_DATA)
|
else if (r_symndx == ALPHA_RELOC_SECTION_DATA)
|
{
|
{
|
rel->sym_ptr_ptr = data_sec->symbol_ptr_ptr;
|
rel->sym_ptr_ptr = data_sec->symbol_ptr_ptr;
|
rel->addend = - bfd_get_section_vma (abfd, data_sec);
|
rel->addend = - bfd_get_section_vma (abfd, data_sec);
|
}
|
}
|
else
|
else
|
{
|
{
|
BFD_ASSERT (0);
|
BFD_ASSERT (0);
|
rel->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
|
rel->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
|
rel->addend = 0;
|
rel->addend = 0;
|
}
|
}
|
}
|
}
|
|
|
/* We use the address to determine whether the reloc is in the .text
|
/* We use the address to determine whether the reloc is in the .text
|
or .data section. R_NW_RELOC relocs don't really have a section,
|
or .data section. R_NW_RELOC relocs don't really have a section,
|
so we put them in .text. */
|
so we put them in .text. */
|
if (r_type == ALPHA_R_NW_RELOC
|
if (r_type == ALPHA_R_NW_RELOC
|
|| r_vaddr < code_sec->size)
|
|| r_vaddr < code_sec->size)
|
{
|
{
|
*secp = code_sec;
|
*secp = code_sec;
|
rel->address = r_vaddr;
|
rel->address = r_vaddr;
|
}
|
}
|
else
|
else
|
{
|
{
|
*secp = data_sec;
|
*secp = data_sec;
|
rel->address = r_vaddr - code_sec->size;
|
rel->address = r_vaddr - code_sec->size;
|
}
|
}
|
|
|
/* We must adjust the addend based on the type. */
|
/* We must adjust the addend based on the type. */
|
BFD_ASSERT ((r_type >= 0 && r_type <= ALPHA_R_GPVALUE)
|
BFD_ASSERT ((r_type >= 0 && r_type <= ALPHA_R_GPVALUE)
|
|| r_type == ALPHA_R_NW_RELOC);
|
|| r_type == ALPHA_R_NW_RELOC);
|
|
|
switch (r_type)
|
switch (r_type)
|
{
|
{
|
case ALPHA_R_BRADDR:
|
case ALPHA_R_BRADDR:
|
case ALPHA_R_SREL16:
|
case ALPHA_R_SREL16:
|
case ALPHA_R_SREL32:
|
case ALPHA_R_SREL32:
|
case ALPHA_R_SREL64:
|
case ALPHA_R_SREL64:
|
/* The PC relative relocs do not seem to use the section VMA as
|
/* The PC relative relocs do not seem to use the section VMA as
|
a negative addend. */
|
a negative addend. */
|
rel->addend = 0;
|
rel->addend = 0;
|
break;
|
break;
|
|
|
case ALPHA_R_GPREL32:
|
case ALPHA_R_GPREL32:
|
/* Copy the gp value for this object file into the addend, to
|
/* Copy the gp value for this object file into the addend, to
|
ensure that we are not confused by the linker. */
|
ensure that we are not confused by the linker. */
|
if (! r_extern)
|
if (! r_extern)
|
rel->addend += gp_value;
|
rel->addend += gp_value;
|
break;
|
break;
|
|
|
case ALPHA_R_LITERAL:
|
case ALPHA_R_LITERAL:
|
BFD_ASSERT (! r_extern);
|
BFD_ASSERT (! r_extern);
|
rel->addend += lita_address;
|
rel->addend += lita_address;
|
break;
|
break;
|
|
|
case ALPHA_R_LITUSE:
|
case ALPHA_R_LITUSE:
|
case ALPHA_R_GPDISP:
|
case ALPHA_R_GPDISP:
|
/* The LITUSE and GPDISP relocs do not use a symbol, or an
|
/* The LITUSE and GPDISP relocs do not use a symbol, or an
|
addend, but they do use a special code. Put this code in the
|
addend, but they do use a special code. Put this code in the
|
addend field. */
|
addend field. */
|
rel->addend = r_symndx;
|
rel->addend = r_symndx;
|
rel->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
|
rel->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
|
break;
|
break;
|
|
|
case ALPHA_R_OP_STORE:
|
case ALPHA_R_OP_STORE:
|
/* The STORE reloc needs the size and offset fields. We store
|
/* The STORE reloc needs the size and offset fields. We store
|
them in the addend. */
|
them in the addend. */
|
BFD_ASSERT (r_offset < 256 && r_size < 256);
|
BFD_ASSERT (r_offset < 256 && r_size < 256);
|
rel->addend = (r_offset << 8) + r_size;
|
rel->addend = (r_offset << 8) + r_size;
|
break;
|
break;
|
|
|
case ALPHA_R_OP_PUSH:
|
case ALPHA_R_OP_PUSH:
|
case ALPHA_R_OP_PSUB:
|
case ALPHA_R_OP_PSUB:
|
case ALPHA_R_OP_PRSHIFT:
|
case ALPHA_R_OP_PRSHIFT:
|
/* The PUSH, PSUB and PRSHIFT relocs do not actually use an
|
/* The PUSH, PSUB and PRSHIFT relocs do not actually use an
|
address. I believe that the address supplied is really an
|
address. I believe that the address supplied is really an
|
addend. */
|
addend. */
|
rel->addend = r_vaddr;
|
rel->addend = r_vaddr;
|
break;
|
break;
|
|
|
case ALPHA_R_GPVALUE:
|
case ALPHA_R_GPVALUE:
|
/* Record the new gp value. */
|
/* Record the new gp value. */
|
gp_value += r_symndx;
|
gp_value += r_symndx;
|
rel->addend = gp_value;
|
rel->addend = gp_value;
|
break;
|
break;
|
|
|
case ALPHA_R_IGNORE:
|
case ALPHA_R_IGNORE:
|
/* If the type is ALPHA_R_IGNORE, make sure this is a reference
|
/* If the type is ALPHA_R_IGNORE, make sure this is a reference
|
to the absolute section so that the reloc is ignored. For
|
to the absolute section so that the reloc is ignored. For
|
some reason the address of this reloc type is not adjusted by
|
some reason the address of this reloc type is not adjusted by
|
the section vma. We record the gp value for this object file
|
the section vma. We record the gp value for this object file
|
here, for convenience when doing the GPDISP relocation. */
|
here, for convenience when doing the GPDISP relocation. */
|
rel->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
|
rel->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
|
rel->address = r_vaddr;
|
rel->address = r_vaddr;
|
rel->addend = gp_value;
|
rel->addend = gp_value;
|
break;
|
break;
|
|
|
case ALPHA_R_NW_RELOC:
|
case ALPHA_R_NW_RELOC:
|
/* If this is SETGP, we set the addend to 0. Otherwise we set
|
/* If this is SETGP, we set the addend to 0. Otherwise we set
|
the addend to the size of the .lita section (this is
|
the addend to the size of the .lita section (this is
|
r_symndx) plus 1. We have already set the address of the
|
r_symndx) plus 1. We have already set the address of the
|
reloc to r_vaddr. */
|
reloc to r_vaddr. */
|
if (r_size == ALPHA_R_NW_RELOC_SETGP)
|
if (r_size == ALPHA_R_NW_RELOC_SETGP)
|
{
|
{
|
gp_value = r_vaddr;
|
gp_value = r_vaddr;
|
rel->addend = 0;
|
rel->addend = 0;
|
}
|
}
|
else if (r_size == ALPHA_R_NW_RELOC_LITA)
|
else if (r_size == ALPHA_R_NW_RELOC_LITA)
|
{
|
{
|
lita_address = r_vaddr;
|
lita_address = r_vaddr;
|
rel->addend = r_symndx + 1;
|
rel->addend = r_symndx + 1;
|
}
|
}
|
else
|
else
|
BFD_ASSERT (0);
|
BFD_ASSERT (0);
|
rel->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
|
rel->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
|
break;
|
break;
|
|
|
default:
|
default:
|
break;
|
break;
|
}
|
}
|
|
|
if (r_type == ALPHA_R_NW_RELOC)
|
if (r_type == ALPHA_R_NW_RELOC)
|
rel->howto = &nlm32_alpha_nw_howto;
|
rel->howto = &nlm32_alpha_nw_howto;
|
else
|
else
|
rel->howto = &nlm32_alpha_howto_table[r_type];
|
rel->howto = &nlm32_alpha_howto_table[r_type];
|
|
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
/* Mangle Alpha NLM relocs for output. */
|
/* Mangle Alpha NLM relocs for output. */
|
|
|
static bfd_boolean
|
static bfd_boolean
|
nlm_alpha_mangle_relocs (bfd *abfd ATTRIBUTE_UNUSED,
|
nlm_alpha_mangle_relocs (bfd *abfd ATTRIBUTE_UNUSED,
|
asection *sec ATTRIBUTE_UNUSED,
|
asection *sec ATTRIBUTE_UNUSED,
|
const void * data ATTRIBUTE_UNUSED,
|
const void * data ATTRIBUTE_UNUSED,
|
bfd_vma offset ATTRIBUTE_UNUSED,
|
bfd_vma offset ATTRIBUTE_UNUSED,
|
bfd_size_type count ATTRIBUTE_UNUSED)
|
bfd_size_type count ATTRIBUTE_UNUSED)
|
{
|
{
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
/* Read an ALPHA NLM import record. */
|
/* Read an ALPHA NLM import record. */
|
|
|
static bfd_boolean
|
static bfd_boolean
|
nlm_alpha_read_import (bfd *abfd, nlmNAME (symbol_type) * sym)
|
nlm_alpha_read_import (bfd *abfd, nlmNAME (symbol_type) * sym)
|
{
|
{
|
struct nlm_relent *nlm_relocs; /* Relocation records for symbol. */
|
struct nlm_relent *nlm_relocs; /* Relocation records for symbol. */
|
bfd_size_type rcount; /* Number of relocs. */
|
bfd_size_type rcount; /* Number of relocs. */
|
bfd_byte temp[NLM_TARGET_LONG_SIZE]; /* Temporary 32-bit value. */
|
bfd_byte temp[NLM_TARGET_LONG_SIZE]; /* Temporary 32-bit value. */
|
unsigned char symlength; /* Length of symbol name. */
|
unsigned char symlength; /* Length of symbol name. */
|
char *name;
|
char *name;
|
bfd_size_type amt;
|
bfd_size_type amt;
|
|
|
if (bfd_bread (& symlength, (bfd_size_type) sizeof (symlength), abfd)
|
if (bfd_bread (& symlength, (bfd_size_type) sizeof (symlength), abfd)
|
!= sizeof (symlength))
|
!= sizeof (symlength))
|
return FALSE;
|
return FALSE;
|
sym -> symbol.the_bfd = abfd;
|
sym -> symbol.the_bfd = abfd;
|
name = bfd_alloc (abfd, (bfd_size_type) symlength + 1);
|
name = bfd_alloc (abfd, (bfd_size_type) symlength + 1);
|
if (name == NULL)
|
if (name == NULL)
|
return FALSE;
|
return FALSE;
|
if (bfd_bread (name, (bfd_size_type) symlength, abfd) != symlength)
|
if (bfd_bread (name, (bfd_size_type) symlength, abfd) != symlength)
|
return FALSE;
|
return FALSE;
|
name[symlength] = '\0';
|
name[symlength] = '\0';
|
sym -> symbol.name = name;
|
sym -> symbol.name = name;
|
sym -> symbol.flags = 0;
|
sym -> symbol.flags = 0;
|
sym -> symbol.value = 0;
|
sym -> symbol.value = 0;
|
sym -> symbol.section = bfd_und_section_ptr;
|
sym -> symbol.section = bfd_und_section_ptr;
|
if (bfd_bread (temp, (bfd_size_type) sizeof (temp), abfd)
|
if (bfd_bread (temp, (bfd_size_type) sizeof (temp), abfd)
|
!= sizeof (temp))
|
!= sizeof (temp))
|
return FALSE;
|
return FALSE;
|
rcount = H_GET_32 (abfd, temp);
|
rcount = H_GET_32 (abfd, temp);
|
amt = rcount * sizeof (struct nlm_relent);
|
amt = rcount * sizeof (struct nlm_relent);
|
nlm_relocs = bfd_alloc (abfd, amt);
|
nlm_relocs = bfd_alloc (abfd, amt);
|
if (!nlm_relocs)
|
if (!nlm_relocs)
|
return FALSE;
|
return FALSE;
|
sym -> relocs = nlm_relocs;
|
sym -> relocs = nlm_relocs;
|
sym -> rcnt = 0;
|
sym -> rcnt = 0;
|
while (sym -> rcnt < rcount)
|
while (sym -> rcnt < rcount)
|
{
|
{
|
asection *section;
|
asection *section;
|
|
|
if (! nlm_alpha_read_reloc (abfd, sym, §ion, &nlm_relocs -> reloc))
|
if (! nlm_alpha_read_reloc (abfd, sym, §ion, &nlm_relocs -> reloc))
|
return FALSE;
|
return FALSE;
|
nlm_relocs -> section = section;
|
nlm_relocs -> section = section;
|
nlm_relocs++;
|
nlm_relocs++;
|
sym -> rcnt++;
|
sym -> rcnt++;
|
}
|
}
|
|
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
/* Write an Alpha NLM reloc. */
|
/* Write an Alpha NLM reloc. */
|
|
|
static bfd_boolean
|
static bfd_boolean
|
nlm_alpha_write_import (bfd * abfd, asection * sec, arelent * rel)
|
nlm_alpha_write_import (bfd * abfd, asection * sec, arelent * rel)
|
{
|
{
|
asymbol *sym;
|
asymbol *sym;
|
bfd_vma r_vaddr;
|
bfd_vma r_vaddr;
|
long r_symndx;
|
long r_symndx;
|
int r_type, r_extern, r_offset, r_size;
|
int r_type, r_extern, r_offset, r_size;
|
struct nlm32_alpha_external_reloc ext;
|
struct nlm32_alpha_external_reloc ext;
|
|
|
sym = *rel->sym_ptr_ptr;
|
sym = *rel->sym_ptr_ptr;
|
|
|
/* Get values for the relocation fields. */
|
/* Get values for the relocation fields. */
|
r_type = rel->howto->type;
|
r_type = rel->howto->type;
|
if (r_type != ALPHA_R_NW_RELOC)
|
if (r_type != ALPHA_R_NW_RELOC)
|
{
|
{
|
r_vaddr = bfd_get_section_vma (abfd, sec) + rel->address;
|
r_vaddr = bfd_get_section_vma (abfd, sec) + rel->address;
|
if ((sec->flags & SEC_CODE) == 0)
|
if ((sec->flags & SEC_CODE) == 0)
|
r_vaddr += bfd_get_section_by_name (abfd, NLM_CODE_NAME) -> size;
|
r_vaddr += bfd_get_section_by_name (abfd, NLM_CODE_NAME) -> size;
|
if (bfd_is_und_section (bfd_get_section (sym)))
|
if (bfd_is_und_section (bfd_get_section (sym)))
|
{
|
{
|
r_extern = 1;
|
r_extern = 1;
|
r_symndx = 0;
|
r_symndx = 0;
|
}
|
}
|
else
|
else
|
{
|
{
|
r_extern = 0;
|
r_extern = 0;
|
if (bfd_get_section_flags (abfd, bfd_get_section (sym)) & SEC_CODE)
|
if (bfd_get_section_flags (abfd, bfd_get_section (sym)) & SEC_CODE)
|
r_symndx = ALPHA_RELOC_SECTION_TEXT;
|
r_symndx = ALPHA_RELOC_SECTION_TEXT;
|
else
|
else
|
r_symndx = ALPHA_RELOC_SECTION_DATA;
|
r_symndx = ALPHA_RELOC_SECTION_DATA;
|
}
|
}
|
r_offset = 0;
|
r_offset = 0;
|
r_size = 0;
|
r_size = 0;
|
|
|
switch (r_type)
|
switch (r_type)
|
{
|
{
|
case ALPHA_R_LITUSE:
|
case ALPHA_R_LITUSE:
|
case ALPHA_R_GPDISP:
|
case ALPHA_R_GPDISP:
|
r_symndx = rel->addend;
|
r_symndx = rel->addend;
|
break;
|
break;
|
|
|
case ALPHA_R_OP_STORE:
|
case ALPHA_R_OP_STORE:
|
r_size = rel->addend & 0xff;
|
r_size = rel->addend & 0xff;
|
r_offset = (rel->addend >> 8) & 0xff;
|
r_offset = (rel->addend >> 8) & 0xff;
|
break;
|
break;
|
|
|
case ALPHA_R_OP_PUSH:
|
case ALPHA_R_OP_PUSH:
|
case ALPHA_R_OP_PSUB:
|
case ALPHA_R_OP_PSUB:
|
case ALPHA_R_OP_PRSHIFT:
|
case ALPHA_R_OP_PRSHIFT:
|
r_vaddr = rel->addend;
|
r_vaddr = rel->addend;
|
break;
|
break;
|
|
|
case ALPHA_R_IGNORE:
|
case ALPHA_R_IGNORE:
|
r_vaddr = rel->address;
|
r_vaddr = rel->address;
|
break;
|
break;
|
|
|
default:
|
default:
|
break;
|
break;
|
}
|
}
|
}
|
}
|
else
|
else
|
{
|
{
|
/* r_type == ALPHA_R_NW_RELOC. */
|
/* r_type == ALPHA_R_NW_RELOC. */
|
r_vaddr = rel->address;
|
r_vaddr = rel->address;
|
if (rel->addend == 0)
|
if (rel->addend == 0)
|
{
|
{
|
r_symndx = 0;
|
r_symndx = 0;
|
r_size = ALPHA_R_NW_RELOC_SETGP;
|
r_size = ALPHA_R_NW_RELOC_SETGP;
|
}
|
}
|
else
|
else
|
{
|
{
|
r_symndx = rel->addend - 1;
|
r_symndx = rel->addend - 1;
|
r_size = ALPHA_R_NW_RELOC_LITA;
|
r_size = ALPHA_R_NW_RELOC_LITA;
|
}
|
}
|
r_extern = 0;
|
r_extern = 0;
|
r_offset = 0;
|
r_offset = 0;
|
}
|
}
|
|
|
/* Swap out the relocation fields. */
|
/* Swap out the relocation fields. */
|
H_PUT_64 (abfd, r_vaddr, ext.r_vaddr);
|
H_PUT_64 (abfd, r_vaddr, ext.r_vaddr);
|
H_PUT_32 (abfd, r_symndx, ext.r_symndx);
|
H_PUT_32 (abfd, r_symndx, ext.r_symndx);
|
|
|
BFD_ASSERT (bfd_little_endian (abfd));
|
BFD_ASSERT (bfd_little_endian (abfd));
|
|
|
ext.r_bits[0] = ((r_type << RELOC_BITS0_TYPE_SH_LITTLE)
|
ext.r_bits[0] = ((r_type << RELOC_BITS0_TYPE_SH_LITTLE)
|
& RELOC_BITS0_TYPE_LITTLE);
|
& RELOC_BITS0_TYPE_LITTLE);
|
ext.r_bits[1] = ((r_extern ? RELOC_BITS1_EXTERN_LITTLE : 0)
|
ext.r_bits[1] = ((r_extern ? RELOC_BITS1_EXTERN_LITTLE : 0)
|
| ((r_offset << RELOC_BITS1_OFFSET_SH_LITTLE)
|
| ((r_offset << RELOC_BITS1_OFFSET_SH_LITTLE)
|
& RELOC_BITS1_OFFSET_LITTLE));
|
& RELOC_BITS1_OFFSET_LITTLE));
|
ext.r_bits[2] = 0;
|
ext.r_bits[2] = 0;
|
ext.r_bits[3] = ((r_size << RELOC_BITS3_SIZE_SH_LITTLE)
|
ext.r_bits[3] = ((r_size << RELOC_BITS3_SIZE_SH_LITTLE)
|
& RELOC_BITS3_SIZE_LITTLE);
|
& RELOC_BITS3_SIZE_LITTLE);
|
|
|
/* Write out the relocation. */
|
/* Write out the relocation. */
|
if (bfd_bwrite (&ext, (bfd_size_type) sizeof ext, abfd) != sizeof ext)
|
if (bfd_bwrite (&ext, (bfd_size_type) sizeof ext, abfd) != sizeof ext)
|
return FALSE;
|
return FALSE;
|
|
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
/* Alpha NetWare does not use the high bit to determine whether a
|
/* Alpha NetWare does not use the high bit to determine whether a
|
public symbol is in the code segment or the data segment. Instead,
|
public symbol is in the code segment or the data segment. Instead,
|
it just uses the address. The set_public_section and
|
it just uses the address. The set_public_section and
|
get_public_offset routines override the default code which uses the
|
get_public_offset routines override the default code which uses the
|
high bit. */
|
high bit. */
|
|
|
/* Set the section for a public symbol. */
|
/* Set the section for a public symbol. */
|
|
|
static bfd_boolean
|
static bfd_boolean
|
nlm_alpha_set_public_section (bfd * abfd, nlmNAME (symbol_type) * sym)
|
nlm_alpha_set_public_section (bfd * abfd, nlmNAME (symbol_type) * sym)
|
{
|
{
|
asection *code_sec, *data_sec;
|
asection *code_sec, *data_sec;
|
|
|
code_sec = bfd_get_section_by_name (abfd, NLM_CODE_NAME);
|
code_sec = bfd_get_section_by_name (abfd, NLM_CODE_NAME);
|
data_sec = bfd_get_section_by_name (abfd, NLM_INITIALIZED_DATA_NAME);
|
data_sec = bfd_get_section_by_name (abfd, NLM_INITIALIZED_DATA_NAME);
|
if (sym->symbol.value < code_sec->size)
|
if (sym->symbol.value < code_sec->size)
|
{
|
{
|
sym->symbol.section = code_sec;
|
sym->symbol.section = code_sec;
|
sym->symbol.flags |= BSF_FUNCTION;
|
sym->symbol.flags |= BSF_FUNCTION;
|
}
|
}
|
else
|
else
|
{
|
{
|
sym->symbol.section = data_sec;
|
sym->symbol.section = data_sec;
|
sym->symbol.value -= code_sec->size;
|
sym->symbol.value -= code_sec->size;
|
/* The data segment had better be aligned. */
|
/* The data segment had better be aligned. */
|
BFD_ASSERT ((code_sec->size & 0xf) == 0);
|
BFD_ASSERT ((code_sec->size & 0xf) == 0);
|
}
|
}
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
/* Get the offset to write out for a public symbol. */
|
/* Get the offset to write out for a public symbol. */
|
|
|
static bfd_vma
|
static bfd_vma
|
nlm_alpha_get_public_offset (bfd * abfd ATTRIBUTE_UNUSED, asymbol * sym)
|
nlm_alpha_get_public_offset (bfd * abfd ATTRIBUTE_UNUSED, asymbol * sym)
|
{
|
{
|
return bfd_asymbol_value (sym);
|
return bfd_asymbol_value (sym);
|
}
|
}
|
|
|
/* Write an Alpha NLM external symbol. */
|
/* Write an Alpha NLM external symbol. */
|
|
|
static bfd_boolean
|
static bfd_boolean
|
nlm_alpha_write_external (bfd *abfd,
|
nlm_alpha_write_external (bfd *abfd,
|
bfd_size_type count,
|
bfd_size_type count,
|
asymbol *sym,
|
asymbol *sym,
|
struct reloc_and_sec *relocs)
|
struct reloc_and_sec *relocs)
|
{
|
{
|
bfd_size_type i;
|
bfd_size_type i;
|
bfd_byte len;
|
bfd_byte len;
|
unsigned char temp[NLM_TARGET_LONG_SIZE];
|
unsigned char temp[NLM_TARGET_LONG_SIZE];
|
arelent r;
|
arelent r;
|
|
|
len = strlen (sym->name);
|
len = strlen (sym->name);
|
if ((bfd_bwrite (&len, (bfd_size_type) sizeof (bfd_byte), abfd)
|
if ((bfd_bwrite (&len, (bfd_size_type) sizeof (bfd_byte), abfd)
|
!= sizeof (bfd_byte))
|
!= sizeof (bfd_byte))
|
|| bfd_bwrite (sym->name, (bfd_size_type) len, abfd) != len)
|
|| bfd_bwrite (sym->name, (bfd_size_type) len, abfd) != len)
|
return FALSE;
|
return FALSE;
|
|
|
bfd_put_32 (abfd, count + 2, temp);
|
bfd_put_32 (abfd, count + 2, temp);
|
if (bfd_bwrite (temp, (bfd_size_type) sizeof (temp), abfd) != sizeof (temp))
|
if (bfd_bwrite (temp, (bfd_size_type) sizeof (temp), abfd) != sizeof (temp))
|
return FALSE;
|
return FALSE;
|
|
|
/* The first two relocs for each external symbol are the .lita
|
/* The first two relocs for each external symbol are the .lita
|
address and the GP value. */
|
address and the GP value. */
|
r.sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
|
r.sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
|
r.howto = &nlm32_alpha_nw_howto;
|
r.howto = &nlm32_alpha_nw_howto;
|
|
|
r.address = nlm_alpha_backend_data (abfd)->lita_address;
|
r.address = nlm_alpha_backend_data (abfd)->lita_address;
|
r.addend = nlm_alpha_backend_data (abfd)->lita_size + 1;
|
r.addend = nlm_alpha_backend_data (abfd)->lita_size + 1;
|
if (! nlm_alpha_write_import (abfd, NULL, &r))
|
if (! nlm_alpha_write_import (abfd, NULL, &r))
|
return FALSE;
|
return FALSE;
|
|
|
r.address = nlm_alpha_backend_data (abfd)->gp;
|
r.address = nlm_alpha_backend_data (abfd)->gp;
|
r.addend = 0;
|
r.addend = 0;
|
if (! nlm_alpha_write_import (abfd, NULL, &r))
|
if (! nlm_alpha_write_import (abfd, NULL, &r))
|
return FALSE;
|
return FALSE;
|
|
|
for (i = 0; i < count; i++)
|
for (i = 0; i < count; i++)
|
if (! nlm_alpha_write_import (abfd, relocs[i].sec, relocs[i].rel))
|
if (! nlm_alpha_write_import (abfd, relocs[i].sec, relocs[i].rel))
|
return FALSE;
|
return FALSE;
|
|
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
#include "nlmswap.h"
|
#include "nlmswap.h"
|
|
|
static const struct nlm_backend_data nlm32_alpha_backend =
|
static const struct nlm_backend_data nlm32_alpha_backend =
|
{
|
{
|
"NetWare Alpha Module \032",
|
"NetWare Alpha Module \032",
|
sizeof (Nlm32_alpha_External_Fixed_Header),
|
sizeof (Nlm32_alpha_External_Fixed_Header),
|
sizeof (struct nlm32_alpha_external_prefix_header),
|
sizeof (struct nlm32_alpha_external_prefix_header),
|
bfd_arch_alpha,
|
bfd_arch_alpha,
|
0,
|
0,
|
TRUE, /* No uninitialized data permitted by Alpha NetWare. */
|
TRUE, /* No uninitialized data permitted by Alpha NetWare. */
|
nlm_alpha_backend_object_p,
|
nlm_alpha_backend_object_p,
|
nlm_alpha_write_prefix,
|
nlm_alpha_write_prefix,
|
nlm_alpha_read_reloc,
|
nlm_alpha_read_reloc,
|
nlm_alpha_mangle_relocs,
|
nlm_alpha_mangle_relocs,
|
nlm_alpha_read_import,
|
nlm_alpha_read_import,
|
nlm_alpha_write_import,
|
nlm_alpha_write_import,
|
nlm_alpha_set_public_section,
|
nlm_alpha_set_public_section,
|
nlm_alpha_get_public_offset,
|
nlm_alpha_get_public_offset,
|
nlm_swap_fixed_header_in,
|
nlm_swap_fixed_header_in,
|
nlm_swap_fixed_header_out,
|
nlm_swap_fixed_header_out,
|
nlm_alpha_write_external,
|
nlm_alpha_write_external,
|
0, /* Write_export. */
|
0, /* Write_export. */
|
};
|
};
|
|
|
#define TARGET_LITTLE_NAME "nlm32-alpha"
|
#define TARGET_LITTLE_NAME "nlm32-alpha"
|
#define TARGET_LITTLE_SYM nlmNAME (alpha_vec)
|
#define TARGET_LITTLE_SYM nlmNAME (alpha_vec)
|
#define TARGET_BACKEND_DATA & nlm32_alpha_backend
|
#define TARGET_BACKEND_DATA & nlm32_alpha_backend
|
|
|
#include "nlm-target.h"
|
#include "nlm-target.h"
|
|
|
