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* elf32-ppc.c: Renamed from elf32-powerpc.c. 

start-sanitize-powerpc-netware
	* nlm32-ppc.c: Renamed from nlm32-powerpc.c.
 	end-sanitize-powerpc-netware
	* Makefile.in, configure.in: Corresponding changes.
This commit is contained in:
Ian Lance Taylor 1994-03-12 17:48:16 +00:00
parent f71481ba84
commit 45ccfd58d2
4 changed files with 12 additions and 1656 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
bfd/.Sanitize
View File

@ -34,9 +34,9 @@ else
fi
if ( echo $* | grep keep\-powerpc\-netware > /dev/null ) ; then
keep_these_too="nlm32-powerpc.c ${keep_these_too}"
keep_these_too="nlm32-ppc.c ${keep_these_too}"
else
lose_these_too="nlm32-powerpc.c ${lose_these_too}"
lose_these_too="nlm32-ppc.c ${lose_these_too}"
fi
# All files listed between the "Things-to-keep:" line and the
@ -130,7 +130,7 @@ elf32-i860.c
elf32-m68k.c
elf32-m88k.c
elf32-mips.c
elf32-powerpc.c
elf32-ppc.c
elf32-sparc.c
elf32-target.h
elf32.c

10
bfd/ChangeLog
View File

@ -1,3 +1,11 @@
Sat Mar 12 09:46:09 1994 Ian Lance Taylor (ian@cygnus.com)
* elf32-ppc.c: Renamed from elf32-powerpc.c.
start-sanitize-powerpc-netware
* nlm32-ppc.c: Renamed from nlm32-powerpc.c.
end-sanitize-powerpc-netware
* Makefile.in, configure.in: Corresponding changes.
Fri Mar 11 22:27:19 1994 Ian Lance Taylor (ian@tweedledumb.cygnus.com)
* elf32-powerpc.c: Extensive changes to update to preliminary ABI.
@ -284,7 +292,7 @@ Sat Feb 19 03:17:32 1994 Peter Schauer (pes@regent.e-technik.tu-muenchen.de)
Fri Feb 18 11:41:58 1994 Ian Lance Taylor (ian@tweedledumb.cygnus.com)
start-sanitize-powerpc-netware
start-sanitize-powerpc-netware
Support for PowerPC NetWare.
* nlm32-powerpc.c: New file.
* config.bfd (powerpc-*-netware*): New target; use ppc-nlm.

864
bfd/elf32-powerpc.c
View File

@ -1,864 +0,0 @@
/* PowerPC-specific support for 32-bit ELF
Copyright 1994 Free Software Foundation, Inc.
Written by Ian Lance Taylor, Cygnus Support.
This file is part of BFD, the Binary File Descriptor library.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
/* This file is based on a preliminary PowerPC ELF ABI. The
information may not match the final PowerPC ELF ABI. It includes
suggestions from the in-progress Embedded PowerPC ABI, and that
information may also not match. */
#include "bfd.h"
#include "sysdep.h"
#include "libbfd.h"
#include "libelf.h"
static bfd_reloc_status_type ppc_elf_unsupported_reloc
PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
static bfd_reloc_status_type ppc_elf_addr16_ha_reloc
PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
static bfd_reloc_status_type ppc_elf_got16_reloc
PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
static const struct reloc_howto_struct *bfd_elf32_bfd_reloc_type_lookup
PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
static void powerpc_info_to_howto
PARAMS ((bfd *abfd, arelent *cache_ptr, Elf32_Internal_Rela *dst));
#define USE_RELA
enum reloc_type
{
R_PPC_NONE = 0,
R_PPC_ADDR32,
R_PPC_ADDR24,
R_PPC_ADDR16,
R_PPC_ADDR16_LO,
R_PPC_ADDR16_HI,
R_PPC_ADDR16_HA,
R_PPC_ADDR14,
R_PPC_ADDR14_BRTAKEN,
R_PPC_ADDR14_BRNTAKEN,
R_PPC_REL24,
R_PPC_REL14,
R_PPC_REL14_BRTAKEN,
R_PPC_REL14_BRNTAKEN,
R_PPC_GOT16,
R_PPC_GOT16_LO,
R_PPC_GOT16_HI,
R_PPC_GOT16_HA,
R_PPC_PLT24,
R_PPC_COPY,
R_PPC_GLOB_DAT,
R_PPC_JMP_SLOT,
R_PPC_RELATIVE,
R_PPC_LOCAL24PC,
R_PPC_UADDR32,
R_PPC_UADDR16,
/* The remaining relocs are from the Embedded ELF ABI, and are not
in the SVR4 ELF ABI. */
R_PPC_CGOT16,
R_PPC_CGOT16_LO,
R_PPC_CGOT16_HI,
R_PPC_CGOT16_HA,
R_PPC_GOT_REG,
R_PPC_CGOT_REG,
R_PPC_NADDR16,
R_PPC_NADDR32,
R_PPC_NADDR24,
R_PPC_DISP16,
R_PPC_GOTRL16,
R_PPC_GOTRLA16,
R_PPC_CGOTRL16,
R_PPC_CGOTRLA16,
R_PPC_max
};
static reloc_howto_type elf_powerpc_howto_table[] =
{
/* This reloc does nothing. */
HOWTO (R_PPC_NONE, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_PPC_NONE", /* name */
false, /* partial_inplace */
0, /* src_mask */
0, /* dst_mask */
false), /* pcrel_offset */
/* A standard 32 bit relocation. */
HOWTO (R_PPC_ADDR32, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_PPC_ADDR32", /* name */
false, /* partial_inplace */
0, /* src_mask */
0xffffffff, /* dst_mask */
false), /* pcrel_offset */
/* An absolute 26 bit branch; the lower two bits must be zero.
FIXME: we don't check that, we just clear them. */
HOWTO (R_PPC_ADDR24, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
26, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_PPC_ADDR24", /* name */
false, /* partial_inplace */
0, /* src_mask */
0x3fffffc, /* dst_mask */
false), /* pcrel_offset */
/* A standard 16 bit relocation. */
HOWTO (R_PPC_ADDR16, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_PPC_ADDR16", /* name */
false, /* partial_inplace */
0, /* src_mask */
0xffff, /* dst_mask */
false), /* pcrel_offset */
/* A 16 bit relocation without overflow. */
HOWTO (R_PPC_ADDR16_LO, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_dont,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_PPC_ADDR16_LO", /* name */
false, /* partial_inplace */
0, /* src_mask */
0xffff, /* dst_mask */
false), /* pcrel_offset */
/* The high order 16 bits of an address. */
HOWTO (R_PPC_ADDR16_HI, /* type */
16, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_PPC_ADDR16_HI", /* name */
false, /* partial_inplace */
0, /* src_mask */
0xffff, /* dst_mask */
false), /* pcrel_offset */
/* The high order 16 bits of an address, plus 1 if the contents of
the low 16 bits, treated as a signed number, is negative. */
HOWTO (R_PPC_ADDR16_HA, /* type */
16, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
ppc_elf_addr16_ha_reloc, /* special_function */
"R_PPC_ADDR16_HA", /* name */
false, /* partial_inplace */
0, /* src_mask */
0xffff, /* dst_mask */
false), /* pcrel_offset */
/* An absolute 16 bit branch; the lower two bits must be zero.
FIXME: we don't check that, we just clear them. */
HOWTO (R_PPC_ADDR14, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_PPC_ADDR14", /* name */
false, /* partial_inplace */
0, /* src_mask */
0xfffc, /* dst_mask */
false), /* pcrel_offset */
/* An absolute 16 bit branch, for which bit 10 should be set to
indicate that the branch is expected to be taken. The lower two
bits must be zero. */
HOWTO (R_PPC_ADDR14_BRTAKEN, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
ppc_elf_unsupported_reloc, /* special_function */
"R_PPC_ADDR14_BRTAKEN",/* name */
false, /* partial_inplace */
0, /* src_mask */
0xfffc, /* dst_mask */
false), /* pcrel_offset */
/* An absolute 16 bit branch, for which bit 10 should be set to
indicate that the branch is not expected to be taken. The lower
two bits must be zero. */
HOWTO (R_PPC_ADDR14_BRNTAKEN, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
ppc_elf_unsupported_reloc, /* special_function */
"R_PPC_ADDR14_BRNTAKEN",/* name */
false, /* partial_inplace */
0, /* src_mask */
0xfffc, /* dst_mask */
false), /* pcrel_offset */
/* A relative 26 bit branch; the lower two bits must be zero. */
HOWTO (R_PPC_REL24, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
26, /* bitsize */
true, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_PPC_REL24", /* name */
false, /* partial_inplace */
0, /* src_mask */
0x3fffffc, /* dst_mask */
true), /* pcrel_offset */
/* A relative 16 bit branch; the lower two bits must be zero. */
HOWTO (R_PPC_REL14, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
true, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_PPC_REL14", /* name */
false, /* partial_inplace */
0, /* src_mask */
0xfffc, /* dst_mask */
true), /* pcrel_offset */
/* A relative 16 bit branch. Bit 10 should be set to indicate that
the branch is expected to be taken. The lower two bits must be
zero. */
HOWTO (R_PPC_REL14_BRTAKEN, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
ppc_elf_unsupported_reloc, /* special_function */
"R_PPC_REL14_BRTAKEN", /* name */
false, /* partial_inplace */
0, /* src_mask */
0xfffc, /* dst_mask */
true), /* pcrel_offset */
/* A relative 16 bit branch. Bit 10 should be set to indicate that
the branch is not expected to be taken. The lower two bits must
be zero. */
HOWTO (R_PPC_REL14_BRNTAKEN, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
ppc_elf_unsupported_reloc, /* special_function */
"R_PPC_REL14_BRNTAKEN",/* name */
false, /* partial_inplace */
0, /* src_mask */
0xfffc, /* dst_mask */
true), /* pcrel_offset */
/* Like R_PPC_ADDR16, but referring to the GOT table entry for the
symbol. */
HOWTO (R_PPC_GOT16, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
ppc_elf_got16_reloc, /* special_function */
"R_PPC_GOT16", /* name */
false, /* partial_inplace */
0, /* src_mask */
0xffff, /* dst_mask */
false), /* pcrel_offset */
/* Like R_PPC_ADDR16_LO, but referring to the GOT table entry for
the symbol. */
HOWTO (R_PPC_GOT16_LO, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
ppc_elf_got16_reloc, /* special_function */
"R_PPC_GOT16_LO", /* name */
false, /* partial_inplace */
0, /* src_mask */
0xffff, /* dst_mask */
false), /* pcrel_offset */
/* Like R_PPC_ADDR16_HI, but referring to the GOT table entry for
the symbol. */
HOWTO (R_PPC_GOT16_HI, /* type */
16, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
ppc_elf_got16_reloc, /* special_function */
"R_PPC_GOT16_HI", /* name */
false, /* partial_inplace */
0, /* src_mask */
0xffff, /* dst_mask */
false), /* pcrel_offset */
/* Like R_PPC_ADDR16_HA, but referring to the GOT table entry for
the symbol. FIXME: Not supported. */
HOWTO (R_PPC_GOT16_HA, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
ppc_elf_unsupported_reloc, /* special_function */
"R_PPC_GOT16_HA", /* name */
false, /* partial_inplace */
0, /* src_mask */
0xffff, /* dst_mask */
false), /* pcrel_offset */
/* Like R_PPC_REL24, but referring to the procedure linkage table
entry for the symbol. FIXME: Not supported. */
HOWTO (R_PPC_PLT24, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
26, /* bitsize */
true, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_PPC_PLT24", /* name */
false, /* partial_inplace */
0, /* src_mask */
0x3fffffc, /* dst_mask */
true), /* pcrel_offset */
/* This is used only by the dynamic linker. The symbol should exist
both in the object being run and in some shared library. The
dynamic linker copies the data addressed by the symbol from the
shared library into the object. I have no idea what the purpose
of this is. */
HOWTO (R_PPC_COPY, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_PPC_COPY", /* name */
false, /* partial_inplace */
0, /* src_mask */
0, /* dst_mask */
false), /* pcrel_offset */
/* Like R_PPC_ADDR32, but used when setting global offset table
entries. */
HOWTO (R_PPC_GLOB_DAT, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_PPC_GLOB_DAT", /* name */
false, /* partial_inplace */
0, /* src_mask */
0xffffffff, /* dst_mask */
false), /* pcrel_offset */
/* Marks a procedure linkage table entry for a symbol. */
HOWTO (R_PPC_JMP_SLOT, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_PPC_JMP_SLOT", /* name */
false, /* partial_inplace */
0, /* src_mask */
0, /* dst_mask */
false), /* pcrel_offset */
/* Used only by the dynamic linker. When the object is run, this
longword is set to the load address of the object, plus the
addend. */
HOWTO (R_PPC_RELATIVE, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_PPC_RELATIVE", /* name */
false, /* partial_inplace */
0, /* src_mask */
0xffffffff, /* dst_mask */
false), /* pcrel_offset */
/* Like R_PPC_REL24, but uses the value of the symbol within the
object rather than the final value. Normally used for
_GLOBAL_OFFSET_TABLE_. FIXME: Not supported. */
HOWTO (R_PPC_LOCAL24PC, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
26, /* bitsize */
true, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
ppc_elf_unsupported_reloc, /* special_function */
"R_PPC_LOCAL24PC", /* name */
false, /* partial_inplace */
0, /* src_mask */
0x3fffffc, /* dst_mask */
true), /* pcrel_offset */
/* Like R_PPC_ADDR32, but may be unaligned. */
HOWTO (R_PPC_UADDR32, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_PPC_UADDR32", /* name */
false, /* partial_inplace */
0, /* src_mask */
0xffffffff, /* dst_mask */
false), /* pcrel_offset */
/* Like R_PPC_ADDR16, but may be unaligned. */
HOWTO (R_PPC_UADDR16, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_PPC_UADDR16", /* name */
false, /* partial_inplace */
0, /* src_mask */
0xffff, /* dst_mask */
false), /* pcrel_offset */
/* The remaining relocs are from the Embedded ELF ABI, and are not
in the SVR4 ELF ABI. */
/* Like R_PPC_GOT16, but using the constant GOT table. */
HOWTO (R_PPC_CGOT16, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
ppc_elf_got16_reloc, /* special_function */
"R_PPC_CGOT16", /* name */
false, /* partial_inplace */
0, /* src_mask */
0xffff, /* dst_mask */
false), /* pcrel_offset */
/* Like R_PPC_GOT16_LO, but using the constant GOT table. */
HOWTO (R_PPC_CGOT16_LO, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
ppc_elf_got16_reloc, /* special_function */
"R_PPC_CGOT16_LO", /* name */
false, /* partial_inplace */
0, /* src_mask */
0xffff, /* dst_mask */
false), /* pcrel_offset */
/* Like R_PPC_GOT16_HI, but using the constant GOT table. */
HOWTO (R_PPC_CGOT16_HI, /* type */
16, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
ppc_elf_got16_reloc, /* special_function */
"R_PPC_CGOT16_HI", /* name */
false, /* partial_inplace */
0, /* src_mask */
0xffff, /* dst_mask */
false), /* pcrel_offset */
/* Like R_PPC_GOT16_HA, but using the constant GOT table. */
HOWTO (R_PPC_CGOT16_HA, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
ppc_elf_unsupported_reloc, /* special_function */
"R_PPC_CGOT16_HA", /* name */
false, /* partial_inplace */
0, /* src_mask */
0xffff, /* dst_mask */
false), /* pcrel_offset */
/* The dedicated GOT register. */
HOWTO (R_PPC_GOT_REG, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
5, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
ppc_elf_unsupported_reloc, /* special_function */
"R_PPC_GOT_REG", /* name */
false, /* partial_inplace */
0, /* src_mask */
0x1f, /* dst_mask */
false), /* pcrel_offset */
/* The dedicated CGOT register. */
HOWTO (R_PPC_CGOT_REG, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
5, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
ppc_elf_unsupported_reloc, /* special_function */
"R_PPC_CGOT_REG", /* name */
false, /* partial_inplace */
0, /* src_mask */
0x1f, /* dst_mask */
false), /* pcrel_offset */
/* Like R_PPC_ADDR16, but subtract the symbol. */
HOWTO (R_PPC_NADDR16, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
ppc_elf_unsupported_reloc, /* special_function */
"R_PPC_NADDR16", /* name */
false, /* partial_inplace */
0, /* src_mask */
0xffff, /* dst_mask */
false), /* pcrel_offset */
/* Like R_PPC_ADDR32, but subtract the symbol. */
HOWTO (R_PPC_NADDR32, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
ppc_elf_unsupported_reloc, /* special_function */
"R_PPC_NADDR32", /* name */
false, /* partial_inplace */
0, /* src_mask */
0xffffffff, /* dst_mask */
false), /* pcrel_offset */
/* Like R_PPC_ADDR24, but subtract the symbol. */
HOWTO (R_PPC_NADDR24, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
26, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
ppc_elf_unsupported_reloc, /* special_function */
"R_PPC_NADDR24", /* name */
false, /* partial_inplace */
0, /* src_mask */
0x3fffffc, /* dst_mask */
false), /* pcrel_offset */
/* Offset of symbol relative to containing csect. */
HOWTO (R_PPC_DISP16, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
ppc_elf_unsupported_reloc, /* special_function */
"R_PPC_DISP16", /* name */
false, /* partial_inplace */
0, /* src_mask */
0xffff, /* dst_mask */
false), /* pcrel_offset */
/* Like R_PPC_GOT16, but may be converted to an address computation
instead of a load. */
HOWTO (R_PPC_GOTRL16, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
ppc_elf_got16_reloc, /* special_function */
"R_PPC_GOTRL16", /* name */
false, /* partial_inplace */
0, /* src_mask */
0xffff, /* dst_mask */
false), /* pcrel_offset */
/* Like R_PPC_GOT16, but may be converted to a load instead of an
address computation. */
HOWTO (R_PPC_GOTRLA16, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
ppc_elf_got16_reloc, /* special_function */
"R_PPC_GOTRLA16", /* name */
false, /* partial_inplace */
0, /* src_mask */
0xffff, /* dst_mask */
false), /* pcrel_offset */
/* Like R_PPC_CGOT16, but may be converted to an address computation
instead of a load. */
HOWTO (R_PPC_CGOTRL16, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
ppc_elf_unsupported_reloc, /* special_function */
"R_PPC_CGOTRL16", /* name */
false, /* partial_inplace */
0, /* src_mask */
0xffff, /* dst_mask */
false), /* pcrel_offset */
/* Like R_PPC_CGOT16, but may be converted to a load instead of an
address computation. */
HOWTO (R_PPC_CGOTRLA16, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
ppc_elf_unsupported_reloc, /* special_function */
"R_PPC_CGOTRLA16", /* name */
false, /* partial_inplace */
0, /* src_mask */
0xffff, /* dst_mask */
false), /* pcrel_offset */
};
/* Don't pretend we can deal with unsupported relocs. */
/*ARGSUSED*/
static bfd_reloc_status_type
ppc_elf_unsupported_reloc (abfd, reloc_entry, symbol, data, input_section,
output_bfd, error_message)
bfd *abfd;
arelent *reloc_entry;
asymbol *symbol;
PTR data;
asection *input_section;
bfd *output_bfd;
char **error_message;
{
abort ();
}
/* Handle the ADDR16_HA reloc by adjusting the reloc addend. */
static bfd_reloc_status_type
ppc_elf_addr16_ha_reloc (abfd, reloc_entry, symbol, data, input_section,
output_bfd, error_message)
bfd *abfd;
arelent *reloc_entry;
asymbol *symbol;
PTR data;
asection *input_section;
bfd *output_bfd;
char **error_message;
{
bfd_vma relocation;
if (output_bfd != (bfd *) NULL)
return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
input_section, output_bfd, error_message);
if (bfd_is_com_section (symbol->section))
relocation = 0;
else
relocation = symbol->value;
relocation += (symbol->section->output_section->vma
+ symbol->section->output_offset
+ reloc_entry->addend);
if ((relocation & 0x8000) != 0)
reloc_entry->addend += 0x10000;
return bfd_reloc_continue;
}
/* Handle the GOT16 reloc. We want to use the offset within the .got
section, not the actual VMA. This is appropriate when generating
an embedded ELF object, for which the .got section acts like the
AIX .toc section. When and if we support PIC code, we will have to
change this, perhaps by switching off on the e_type field. */
static bfd_reloc_status_type
ppc_elf_got16_reloc (abfd, reloc_entry, symbol, data, input_section,
output_bfd, error_message)
bfd *abfd;
arelent *reloc_entry;
asymbol *symbol;
PTR data;
asection *input_section;
bfd *output_bfd;
char **error_message;
{
asection *sec;
if (output_bfd != (bfd *) NULL)
return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
input_section, output_bfd, error_message);
sec = bfd_get_section (*reloc_entry->sym_ptr_ptr);
BFD_ASSERT (sec == &bfd_und_section
|| strcmp (bfd_get_section_name (abfd, sec), ".got") == 0
|| strcmp (bfd_get_section_name (abfd, sec), ".cgot") == 0);
reloc_entry->addend -= sec->output_section->vma;
return bfd_reloc_continue;
}
/* Map BFD reloc types to PowerPC ELF reloc types. */
struct powerpc_reloc_map
{
unsigned char bfd_reloc_val;
unsigned char elf_reloc_val;
};
static const struct powerpc_reloc_map powerpc_reloc_map[] =
{
{ BFD_RELOC_NONE, R_PPC_NONE, },
{ BFD_RELOC_32, R_PPC_ADDR32 },
{ BFD_RELOC_CTOR, R_PPC_ADDR32 },
{ BFD_RELOC_PPC_B26, R_PPC_REL24 },
{ BFD_RELOC_PPC_BA26, R_PPC_ADDR24 },
{ BFD_RELOC_PPC_TOC16, R_PPC_GOT16 }
};
static const struct reloc_howto_struct *
bfd_elf32_bfd_reloc_type_lookup (abfd, code)
bfd *abfd;
bfd_reloc_code_real_type code;
{
int i;
for (i = 0;
i < sizeof (powerpc_reloc_map) / sizeof (struct powerpc_reloc_map);
i++)
{
if (powerpc_reloc_map[i].bfd_reloc_val == code)
return &elf_powerpc_howto_table[powerpc_reloc_map[i].elf_reloc_val];
}
return NULL;
}
/* Set the howto pointer for a PowerPC ELF reloc. */
static void
powerpc_info_to_howto (abfd, cache_ptr, dst)
bfd *abfd;
arelent *cache_ptr;
Elf32_Internal_Rela *dst;
{
BFD_ASSERT (ELF32_R_TYPE (dst->r_info) < (unsigned int) R_PPC_max);
cache_ptr->howto = &elf_powerpc_howto_table[ELF32_R_TYPE (dst->r_info)];
}
#define TARGET_BIG_SYM bfd_elf32_powerpc_vec
#define TARGET_BIG_NAME "elf32-powerpc"
#define ELF_ARCH bfd_arch_powerpc
#define ELF_MACHINE_CODE EM_CYGNUS_POWERPC
#define ELF_MAXPAGESIZE 0x10000
#define elf_info_to_howto powerpc_info_to_howto
#include "elf32-target.h"

788
bfd/nlm32-powerpc.c
View File

@ -1,788 +0,0 @@
/* Support for 32-bit PowerPC NLM (NetWare Loadable Module)
Copyright (C) 1994 Free Software Foundation, Inc.
This file is part of BFD, the Binary File Descriptor library.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include "bfd.h"
#include "sysdep.h"
#include "libbfd.h"
#define ARCH_SIZE 32
#include "nlm/ppc-ext.h"
#define Nlm_External_Fixed_Header Nlm32_powerpc_External_Fixed_Header
#include "libnlm.h"
static boolean nlm_powerpc_backend_object_p
PARAMS ((bfd *));
static boolean nlm_powerpc_write_prefix
PARAMS ((bfd *));
static boolean nlm_powerpc_read_reloc
PARAMS ((bfd *, nlmNAME(symbol_type) *, asection **, arelent *));
static boolean nlm_powerpc_mangle_relocs
PARAMS ((bfd *, asection *, PTR, bfd_vma, bfd_size_type));
static boolean nlm_powerpc_read_import
PARAMS ((bfd *, nlmNAME(symbol_type) *));
static boolean nlm_powerpc_write_reloc
PARAMS ((bfd *, asection *, arelent *, int));
static boolean nlm_powerpc_write_import
PARAMS ((bfd *, asection *, arelent *));
static boolean nlm_powerpc_write_external
PARAMS ((bfd *, bfd_size_type, asymbol *, struct reloc_and_sec *));
/* PowerPC NLM's have a prefix header before the standard NLM. This
function reads it in, verifies the version, and seeks the bfd to
the location before the regular NLM header. */
static boolean
nlm_powerpc_backend_object_p (abfd)
bfd *abfd;
{
struct nlm32_powerpc_external_prefix_header s;
if (bfd_read ((PTR) &s, sizeof s, 1, abfd) != sizeof s)
return false;
if (memcmp (s.signature, NLM32_POWERPC_SIGNATURE, sizeof s.signature) != 0
|| bfd_h_get_32 (abfd, s.headerVersion) != NLM32_POWERPC_HEADER_VERSION)
return false;
return true;
}
/* Write out the prefix. */
static boolean
nlm_powerpc_write_prefix (abfd)
bfd *abfd;
{
struct nlm32_powerpc_external_prefix_header s;
memset (&s, 0, sizeof s);
memcpy (s.signature, NLM32_POWERPC_SIGNATURE, sizeof s.signature);
bfd_h_put_32 (abfd, (bfd_vma) NLM32_POWERPC_HEADER_VERSION, s.headerVersion);
bfd_h_put_32 (abfd, (bfd_vma) 0, s.origins);
/* FIXME: What should we do about the date? */
if (bfd_write ((PTR) &s, sizeof s, 1, abfd) != sizeof s)
return false;
return true;
}
/* How to process the various reloc types. PowerPC NLMs use XCOFF
reloc types, and I have just copied the XCOFF reloc table here. */
static reloc_howto_type nlm_powerpc_howto_table[] =
{
/* Standard 32 bit relocation. */
HOWTO (0, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
0, /* special_function */
"R_POS", /* name */
true, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
false), /* pcrel_offset */
/* 32 bit relocation, but store negative value. */
HOWTO (1, /* type */
0, /* rightshift */
-2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
0, /* special_function */
"R_NEG", /* name */
true, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
false), /* pcrel_offset */
/* 32 bit PC relative relocation. */
HOWTO (2, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
true, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
0, /* special_function */
"R_REL", /* name */
true, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
false), /* pcrel_offset */
/* 16 bit TOC relative relocation. */
HOWTO (3, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
0, /* special_function */
"R_TOC", /* name */
true, /* partial_inplace */
0xffff, /* src_mask */
0xffff, /* dst_mask */
false), /* pcrel_offset */
/* I don't really know what this is. */
HOWTO (4, /* type */
1, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
0, /* special_function */
"R_RTB", /* name */
true, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
false), /* pcrel_offset */
/* External TOC relative symbol. */
HOWTO (5, /* 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_GL", /* name */
true, /* partial_inplace */
0xffff, /* src_mask */
0xffff, /* dst_mask */
false), /* pcrel_offset */
/* Local TOC relative symbol. */
HOWTO (6, /* 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_TCL", /* name */
true, /* partial_inplace */
0xffff, /* src_mask */
0xffff, /* dst_mask */
false), /* pcrel_offset */
{ 7 },
/* Non modifiable absolute branch. */
HOWTO (8, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
26, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
0, /* special_function */
"R_BA", /* name */
true, /* partial_inplace */
0x3fffffc, /* src_mask */
0x3fffffc, /* dst_mask */
false), /* pcrel_offset */
{ 9 },
/* Non modifiable relative branch. */
HOWTO (0xa, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
26, /* bitsize */
true, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
0, /* special_function */
"R_BR", /* name */
true, /* partial_inplace */
0x3fffffc, /* src_mask */
0x3fffffc, /* dst_mask */
false), /* pcrel_offset */
{ 0xb },
/* Indirect load. */
HOWTO (0xc, /* 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_RL", /* name */
true, /* partial_inplace */
0xffff, /* src_mask */
0xffff, /* dst_mask */
false), /* pcrel_offset */
/* Load address. */
HOWTO (0xd, /* 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_RLA", /* name */
true, /* partial_inplace */
0xffff, /* src_mask */
0xffff, /* dst_mask */
false), /* pcrel_offset */
{ 0xe },
/* Non-relocating reference. */
HOWTO (0xf, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
0, /* special_function */
"R_REF", /* name */
false, /* partial_inplace */
0, /* src_mask */
0, /* dst_mask */
false), /* pcrel_offset */
{ 0x10 },
{ 0x11 },
/* TOC relative indirect load. */
HOWTO (0x12, /* 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_TRL", /* name */
true, /* partial_inplace */
0xffff, /* src_mask */
0xffff, /* dst_mask */
false), /* pcrel_offset */
/* TOC relative load address. */
HOWTO (0x13, /* 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_TRLA", /* name */
true, /* partial_inplace */
0xffff, /* src_mask */
0xffff, /* dst_mask */
false), /* pcrel_offset */
/* Modifiable relative branch. */
HOWTO (0x14, /* type */
1, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
0, /* special_function */
"R_RRTBI", /* name */
true, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
false), /* pcrel_offset */
/* Modifiable absolute branch. */
HOWTO (0x15, /* type */
1, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
0, /* special_function */
"R_RRTBA", /* name */
true, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
false), /* pcrel_offset */
/* Modifiable call absolute indirect. */
HOWTO (0x16, /* 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_CAI", /* name */
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;
asection *code_sec, *data_sec, *bss_sec;
/* 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);
/* Get the sections now, for convenience. */
code_sec = bfd_get_section_by_name (abfd, NLM_CODE_NAME);
data_sec = bfd_get_section_by_name (abfd, NLM_INITIALIZED_DATA_NAME);
bss_sec = bfd_get_section_by_name (abfd, NLM_UNINITIALIZED_DATA_NAME);
/* 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 = code_sec;
else if (l_symndx == 1)
sec = data_sec;
else if (l_symndx == 2)
sec = bss_sec;
else
{
bfd_set_error (bfd_error_bad_value);
return false;
}
rel->sym_ptr_ptr = sec->symbol_ptr_ptr;
}
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 = code_sec;
else if (l_rsecnm == 1)
{
*secp = data_sec;
l_vaddr -= bfd_section_size (abfd, code_sec);
}
else
{
bfd_set_error (bfd_error_bad_value);
return false;
}
rel->address = l_vaddr;
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, &section,
&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_reloc (abfd, sec, rel, indx)
bfd *abfd;
asection *sec;
arelent *rel;
int indx;
{
struct nlm32_powerpc_external_reloc ext;
asection *code_sec, *data_sec, *bss_sec;
asymbol *sym;
asection *symsec;
unsigned long l_symndx;
int l_rtype;
int l_rsecnm;
const reloc_howto_type *howto;
bfd_size_type address;
/* Get the sections now, for convenience. */
code_sec = bfd_get_section_by_name (abfd, NLM_CODE_NAME);
data_sec = bfd_get_section_by_name (abfd, NLM_INITIALIZED_DATA_NAME);
bss_sec = bfd_get_section_by_name (abfd, NLM_UNINITIALIZED_DATA_NAME);
sym = *rel->sym_ptr_ptr;
symsec = bfd_get_section (sym);
if (indx != -1)
{
BFD_ASSERT (symsec == &bfd_und_section);
l_symndx = indx + 3;
}
else
{
if (symsec == code_sec)
l_symndx = 0;
else if (symsec == data_sec)
l_symndx = 1;
else if (symsec == bss_sec)
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
|| (! rel->howto->partial_inplace
&& rel->addend == 0))
&& (howto->src_mask == rel->howto->src_mask
|| (rel->howto->src_mask == 0
&& rel->addend == 0))
&& 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);
address = rel->address;
if (sec == code_sec)
l_rsecnm = 0;
else if (sec == data_sec)
{
l_rsecnm = 1;
address += bfd_section_size (abfd, code_sec);
}
else
{
bfd_set_error (bfd_error_bad_value);
return false;
}
bfd_h_put_16 (abfd, (bfd_vma) l_rsecnm, ext.l_rsecnm);
bfd_h_put_32 (abfd, (bfd_vma) address, ext.l_vaddr);
if (bfd_write (&ext, sizeof ext, 1, abfd) != sizeof ext)
return false;
return true;
}
/* Write a PowerPC NLM import. */
static boolean
nlm_powerpc_write_import (abfd, sec, rel)
bfd *abfd;
asection *sec;
arelent *rel;
{
return nlm_powerpc_write_reloc (abfd, sec, rel, -1);
}
/* Write a PowerPC NLM external symbol. This routine keeps a static
count of the symbol index. FIXME: I don't know if this is
necessary, and the index never gets reset. */
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];
static int indx;
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_reloc (abfd, relocs[i].sec,
relocs[i].rel, indx) == false)
return false;
}
++indx;
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"