2123 lines
63 KiB
C
2123 lines
63 KiB
C
/* BFD back-end for PowerPC Microsoft Portable Executable files.
|
||
Copyright 1990, 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
|
||
|
||
Original version pieced together by Kim Knuttila (krk@cygnus.com)
|
||
|
||
There is nothing new under the sun. This file draws a lot on other
|
||
coff files, in particular, those for the rs/6000, alpha, mips, and
|
||
intel backends, and the PE work for the arm.
|
||
|
||
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. */
|
||
|
||
/* Current State:
|
||
- objdump works
|
||
- relocs generated by gas
|
||
*/
|
||
|
||
|
||
#include "bfd.h"
|
||
#include "sysdep.h"
|
||
#include "libbfd.h"
|
||
#include "obstack.h"
|
||
|
||
#include "coff/powerpc.h"
|
||
#include "coff/internal.h"
|
||
|
||
#include "coff/pe.h"
|
||
|
||
#ifdef BADMAG
|
||
#undef BADMAG
|
||
#endif
|
||
|
||
#define BADMAG(x) PPCBADMAG(x)
|
||
|
||
#include "libcoff.h"
|
||
|
||
/* The nt loader points the toc register to &toc + 32768, in order to */
|
||
/* use the complete range of a 16-bit displacement (I guess). We have */
|
||
/* to adjust for this when we fix up loads displaced off the toc reg. */
|
||
#define TOC_LOAD_ADJUSTMENT (-32768)
|
||
#define TOC_SECTION_NAME ".private.toc"
|
||
|
||
/* The main body of code is in coffcode.h. */
|
||
|
||
#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (3)
|
||
|
||
/* In case we're on a 32-bit machine, construct a 64-bit "-1" value
|
||
from smaller values. Start with zero, widen, *then* decrement. */
|
||
#define MINUS_ONE (((bfd_vma)0) - 1)
|
||
|
||
/* these should definitely go in a header file somewhere... */
|
||
|
||
/* NOP */
|
||
#define IMAGE_REL_PPC_ABSOLUTE 0x0000
|
||
|
||
/* 64-bit address */
|
||
#define IMAGE_REL_PPC_ADDR64 0x0001
|
||
|
||
/* 32-bit address */
|
||
#define IMAGE_REL_PPC_ADDR32 0x0002
|
||
|
||
/* 26-bit address, shifted left 2 (branch absolute) */
|
||
#define IMAGE_REL_PPC_ADDR24 0x0003
|
||
|
||
/* 16-bit address */
|
||
#define IMAGE_REL_PPC_ADDR16 0x0004
|
||
|
||
/* 16-bit address, shifted left 2 (load doubleword) */
|
||
#define IMAGE_REL_PPC_ADDR14 0x0005
|
||
|
||
/* 26-bit PC-relative offset, shifted left 2 (branch relative) */
|
||
#define IMAGE_REL_PPC_REL24 0x0006
|
||
|
||
/* 16-bit PC-relative offset, shifted left 2 (br cond relative) */
|
||
#define IMAGE_REL_PPC_REL14 0x0007
|
||
|
||
/* 16-bit offset from TOC base */
|
||
#define IMAGE_REL_PPC_TOCREL16 0x0008
|
||
|
||
/* 16-bit offset from TOC base, shifted left 2 (load doubleword) */
|
||
#define IMAGE_REL_PPC_TOCREL14 0x0009
|
||
|
||
/* 32-bit addr w/o image base */
|
||
#define IMAGE_REL_PPC_ADDR32NB 0x000A
|
||
|
||
/* va of containing section (as in an image sectionhdr) */
|
||
#define IMAGE_REL_PPC_SECREL 0x000B
|
||
|
||
/* sectionheader number */
|
||
#define IMAGE_REL_PPC_SECTION 0x000C
|
||
|
||
/* substitute TOC restore instruction iff symbol is glue code */
|
||
#define IMAGE_REL_PPC_IFGLUE 0x000D
|
||
|
||
/* symbol is glue code; virtual address is TOC restore instruction */
|
||
#define IMAGE_REL_PPC_IMGLUE 0x000E
|
||
|
||
/* va of containing section (limited to 16 bits) */
|
||
#define IMAGE_REL_PPC_SECREL16 0x000F
|
||
|
||
/* stuff to handle immediate data when the number of bits in the */
|
||
/* data is greater than the number of bits in the immediate field */
|
||
/* We need to do (usually) 32 bit arithmetic on 16 bit chunks */
|
||
#define IMAGE_REL_PPC_REFHI 0x0010
|
||
#define IMAGE_REL_PPC_REFLO 0x0011
|
||
#define IMAGE_REL_PPC_PAIR 0x0012
|
||
|
||
|
||
/* Flag bits in IMAGE_RELOCATION.TYPE */
|
||
|
||
/* subtract reloc value rather than adding it */
|
||
#define IMAGE_REL_PPC_NEG 0x0100
|
||
|
||
/* fix branch prediction bit to predict branch taken */
|
||
#define IMAGE_REL_PPC_BRTAKEN 0x0200
|
||
|
||
/* fix branch prediction bit to predict branch not taken */
|
||
#define IMAGE_REL_PPC_BRNTAKEN 0x0400
|
||
|
||
/* toc slot defined in file (or, data in toc) */
|
||
#define IMAGE_REL_PPC_TOCDEFN 0x0800
|
||
|
||
/* masks to isolate above values in IMAGE_RELOCATION.Type */
|
||
#define IMAGE_REL_PPC_TYPEMASK 0x00FF
|
||
#define IMAGE_REL_PPC_FLAGMASK 0x0F00
|
||
|
||
#define EXTRACT_TYPE(x) ((x) & IMAGE_REL_PPC_TYPEMASK)
|
||
#define EXTRACT_FLAGS(x) ((x) & IMAGE_REL_PPC_FLAGMASK)
|
||
#define EXTRACT_JUNK(x) \
|
||
((x) & ~(IMAGE_REL_PPC_TYPEMASK | IMAGE_REL_PPC_FLAGMASK))
|
||
|
||
|
||
/* static helper functions to make relocation work */
|
||
/* (Work In Progress) */
|
||
|
||
static bfd_reloc_status_type ppc_refhi_reloc PARAMS ((bfd *abfd,
|
||
arelent *reloc,
|
||
asymbol *symbol,
|
||
PTR data,
|
||
asection *section,
|
||
bfd *output_bfd,
|
||
char **error));
|
||
static bfd_reloc_status_type ppc_reflo_reloc PARAMS ((bfd *abfd,
|
||
arelent *reloc,
|
||
asymbol *symbol,
|
||
PTR data,
|
||
asection *section,
|
||
bfd *output_bfd,
|
||
char **error));
|
||
static bfd_reloc_status_type ppc_pair_reloc PARAMS ((bfd *abfd,
|
||
arelent *reloc,
|
||
asymbol *symbol,
|
||
PTR data,
|
||
asection *section,
|
||
bfd *output_bfd,
|
||
char **error));
|
||
|
||
|
||
static bfd_reloc_status_type ppc_toc16_reloc PARAMS ((bfd *abfd,
|
||
arelent *reloc,
|
||
asymbol *symbol,
|
||
PTR data,
|
||
asection *section,
|
||
bfd *output_bfd,
|
||
char **error));
|
||
|
||
static bfd_reloc_status_type ppc_addr32nb_reloc PARAMS ((bfd *abfd,
|
||
arelent *reloc,
|
||
asymbol *symbol,
|
||
PTR data,
|
||
asection *section,
|
||
bfd *output_bfd,
|
||
char **error));
|
||
|
||
static bfd_reloc_status_type ppc_section_reloc PARAMS ((bfd *abfd,
|
||
arelent *reloc,
|
||
asymbol *symbol,
|
||
PTR data,
|
||
asection *section,
|
||
bfd *output_bfd,
|
||
char **error));
|
||
|
||
static bfd_reloc_status_type ppc_secrel_reloc PARAMS ((bfd *abfd,
|
||
arelent *reloc,
|
||
asymbol *symbol,
|
||
PTR data,
|
||
asection *section,
|
||
bfd *output_bfd,
|
||
char **error));
|
||
|
||
static bfd_reloc_status_type ppc_imglue_reloc PARAMS ((bfd *abfd,
|
||
arelent *reloc,
|
||
asymbol *symbol,
|
||
PTR data,
|
||
asection *section,
|
||
bfd *output_bfd,
|
||
char **error));
|
||
|
||
|
||
|
||
static boolean in_reloc_p PARAMS((bfd *abfd, reloc_howto_type *howto));
|
||
|
||
|
||
/* FIXME: It'll take a while to get through all of these. I only need a few to
|
||
get us started, so those I'll make sure work. Those marked FIXME are either
|
||
completely unverified or have a specific unknown marked in the comment */
|
||
|
||
/*---------------------------------------------------------------------------*/
|
||
/* */
|
||
/* Relocation entries for Windows/NT on PowerPC. */
|
||
/* */
|
||
/* From the document "" we find the following listed as used relocs: */
|
||
/* */
|
||
/* ABSOLUTE : The noop */
|
||
/* ADDR[64|32|16] : fields that hold addresses in data fields or the */
|
||
/* 16 bit displacement field on a load/store. */
|
||
/* ADDR[24|14] : fields that hold addresses in branch and cond */
|
||
/* branches. These represent [26|16] bit addresses. */
|
||
/* The low order 2 bits are preserved. */
|
||
/* REL[24|14] : branches relative to the Instruction Address */
|
||
/* register. These represent [26|16] bit addresses, */
|
||
/* as before. The instruction field will be zero, and */
|
||
/* the address of the SYM will be inserted at link time. */
|
||
/* TOCREL16 : 16 bit displacement field referring to a slot in */
|
||
/* toc. */
|
||
/* TOCREL14 : 16 bit displacement field, similar to REL14 or ADDR14. */
|
||
/* ADDR32NB : 32 bit address relative to the virtual origin. */
|
||
/* (On the alpha, this is always a linker generated thunk)*/
|
||
/* (i.e. 32bit addr relative to the image base) */
|
||
/* SECREL : The value is relative to the start of the section */
|
||
/* containing the symbol. */
|
||
/* SECTION : access to the header containing the item. Supports the */
|
||
/* codeview debugger. */
|
||
/* */
|
||
/* In particular, note that the document does not indicate that the */
|
||
/* relocations listed in the header file are used. */
|
||
/* */
|
||
/* */
|
||
/* */
|
||
/*---------------------------------------------------------------------------*/
|
||
|
||
static reloc_howto_type ppc_coff_howto_table[] =
|
||
{
|
||
/* IMAGE_REL_PPC_ABSOLUTE 0x0000 NOP */
|
||
/* Unused: */
|
||
HOWTO (IMAGE_REL_PPC_ABSOLUTE, /* type */
|
||
0, /* rightshift */
|
||
0, /* size (0 = byte, 1 = short, 2 = long) */
|
||
0, /* bitsize */
|
||
false, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* dont complain_on_overflow */
|
||
0, /* special_function */
|
||
"ABSOLUTE", /* name */
|
||
false, /* partial_inplace */
|
||
0x00, /* src_mask */
|
||
0x00, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
/* IMAGE_REL_PPC_ADDR64 0x0001 64-bit address */
|
||
/* Unused: */
|
||
HOWTO(IMAGE_REL_PPC_ADDR64, /* type */
|
||
0, /* rightshift */
|
||
3, /* size (0 = byte, 1 = short, 2 = long) */
|
||
64, /* bitsize */
|
||
false, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_bitfield, /* complain_on_overflow */
|
||
0, /* special_function */
|
||
"ADDR64", /* name */
|
||
true, /* partial_inplace */
|
||
MINUS_ONE, /* src_mask */
|
||
MINUS_ONE, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
/* IMAGE_REL_PPC_ADDR32 0x0002 32-bit address */
|
||
/* Used: */
|
||
HOWTO (IMAGE_REL_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 */
|
||
0, /* special_function */
|
||
"ADDR32", /* name */
|
||
true, /* partial_inplace */
|
||
0xffffffff, /* src_mask */
|
||
0xffffffff, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
/* IMAGE_REL_PPC_ADDR24 0x0003 26-bit address, shifted left 2 (branch absolute) */
|
||
/* the LI field is in bit 6 through bit 29 is 24 bits, + 2 for the shift */
|
||
/* Of course, That's the IBM approved bit numbering, which is not what */
|
||
/* anyone else uses.... The li field is in bit 2 thru 25 */
|
||
/* Used: */
|
||
HOWTO (IMAGE_REL_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 */
|
||
0, /* special_function */
|
||
"ADDR24", /* name */
|
||
true, /* partial_inplace */
|
||
0x07fffffc, /* src_mask */
|
||
0x07fffffc, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
/* IMAGE_REL_PPC_ADDR16 0x0004 16-bit address */
|
||
/* Used: */
|
||
HOWTO (IMAGE_REL_PPC_ADDR16, /* 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 */
|
||
"ADDR16", /* name */
|
||
true, /* partial_inplace */
|
||
0xffff, /* src_mask */
|
||
0xffff, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
/* IMAGE_REL_PPC_ADDR14 0x0005 */
|
||
/* 16-bit address, shifted left 2 (load doubleword) */
|
||
/* FIXME: the mask is likely wrong, and the bit position may be as well */
|
||
/* Unused: */
|
||
HOWTO (IMAGE_REL_PPC_ADDR14, /* type */
|
||
1, /* 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 */
|
||
"ADDR16", /* name */
|
||
true, /* partial_inplace */
|
||
0xffff, /* src_mask */
|
||
0xffff, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
/* IMAGE_REL_PPC_REL24 0x0006 */
|
||
/* 26-bit PC-relative offset, shifted left 2 (branch relative) */
|
||
/* Used: */
|
||
HOWTO (IMAGE_REL_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 */
|
||
0, /* special_function */
|
||
"REL24", /* name */
|
||
true, /* partial_inplace */
|
||
0x3fffffc, /* src_mask */
|
||
0x3fffffc, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
/* IMAGE_REL_PPC_REL14 0x0007 */
|
||
/* 16-bit PC-relative offset, shifted left 2 (br cond relative) */
|
||
/* FIXME: the mask is likely wrong, and the bit position may be as well */
|
||
/* FIXME: how does it know how far to shift? */
|
||
/* Unused: */
|
||
HOWTO (IMAGE_REL_PPC_ADDR14, /* type */
|
||
1, /* 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 */
|
||
"ADDR16", /* name */
|
||
true, /* partial_inplace */
|
||
0xffff, /* src_mask */
|
||
0xffff, /* dst_mask */
|
||
true), /* pcrel_offset */
|
||
|
||
/* IMAGE_REL_PPC_TOCREL16 0x0008 */
|
||
/* 16-bit offset from TOC base */
|
||
/* Used: */
|
||
HOWTO (IMAGE_REL_PPC_TOCREL16,/* type */
|
||
0, /* rightshift */
|
||
1, /* size (0 = byte, 1 = short, 2 = long) */
|
||
16, /* bitsize */
|
||
false, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
ppc_toc16_reloc, /* special_function */
|
||
"TOCREL16", /* name */
|
||
false, /* partial_inplace */
|
||
0xffff, /* src_mask */
|
||
0xffff, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
/* IMAGE_REL_PPC_TOCREL14 0x0009 */
|
||
/* 16-bit offset from TOC base, shifted left 2 (load doubleword) */
|
||
/* Unused: */
|
||
HOWTO (IMAGE_REL_PPC_TOCREL14,/* type */
|
||
1, /* 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 */
|
||
"TOCREL14", /* name */
|
||
false, /* partial_inplace */
|
||
0xffff, /* src_mask */
|
||
0xffff, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
/* IMAGE_REL_PPC_ADDR32NB 0x000A */
|
||
/* 32-bit addr w/ image base */
|
||
/* Unused: */
|
||
HOWTO (IMAGE_REL_PPC_ADDR32NB,/* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
32, /* bitsize */
|
||
false, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_signed, /* complain_on_overflow */
|
||
0, /* special_function */
|
||
"ADDR32NB", /* name */
|
||
true, /* partial_inplace */
|
||
0xffffffff, /* src_mask */
|
||
0xffffffff, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
/* IMAGE_REL_PPC_SECREL 0x000B */
|
||
/* va of containing section (as in an image sectionhdr) */
|
||
/* Unused: */
|
||
HOWTO (IMAGE_REL_PPC_SECREL,/* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
32, /* bitsize */
|
||
false, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_signed, /* complain_on_overflow */
|
||
ppc_secrel_reloc, /* special_function */
|
||
"SECREL", /* name */
|
||
true, /* partial_inplace */
|
||
0xffffffff, /* src_mask */
|
||
0xffffffff, /* dst_mask */
|
||
true), /* pcrel_offset */
|
||
|
||
/* IMAGE_REL_PPC_SECTION 0x000C */
|
||
/* sectionheader number */
|
||
/* Unused: */
|
||
HOWTO (IMAGE_REL_PPC_SECTION,/* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
32, /* bitsize */
|
||
false, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_signed, /* complain_on_overflow */
|
||
ppc_section_reloc, /* special_function */
|
||
"SECTION", /* name */
|
||
true, /* partial_inplace */
|
||
0xffffffff, /* src_mask */
|
||
0xffffffff, /* dst_mask */
|
||
true), /* pcrel_offset */
|
||
|
||
/* IMAGE_REL_PPC_IFGLUE 0x000D */
|
||
/* substitute TOC restore instruction iff symbol is glue code */
|
||
/* Used: */
|
||
HOWTO (IMAGE_REL_PPC_IFGLUE,/* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
32, /* bitsize */
|
||
false, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_signed, /* complain_on_overflow */
|
||
0, /* special_function */
|
||
"IFGLUE", /* name */
|
||
true, /* partial_inplace */
|
||
0xffffffff, /* src_mask */
|
||
0xffffffff, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
/* IMAGE_REL_PPC_IMGLUE 0x000E */
|
||
/* symbol is glue code; virtual address is TOC restore instruction */
|
||
/* Unused: */
|
||
HOWTO (IMAGE_REL_PPC_IMGLUE,/* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
32, /* bitsize */
|
||
false, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
ppc_imglue_reloc, /* special_function */
|
||
"IMGLUE", /* name */
|
||
false, /* partial_inplace */
|
||
0xffffffff, /* src_mask */
|
||
0xffffffff, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
/* IMAGE_REL_PPC_SECREL16 0x000F */
|
||
/* va of containing section (limited to 16 bits) */
|
||
/* Unused: */
|
||
HOWTO (IMAGE_REL_PPC_SECREL16,/* 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 */
|
||
"SECREL16", /* name */
|
||
true, /* partial_inplace */
|
||
0xffff, /* src_mask */
|
||
0xffff, /* dst_mask */
|
||
true), /* pcrel_offset */
|
||
|
||
/* IMAGE_REL_PPC_REFHI 0x0010 */
|
||
/* Unused: */
|
||
HOWTO (IMAGE_REL_PPC_REFHI, /* type */
|
||
0, /* rightshift */
|
||
1, /* size (0 = byte, 1 = short, 2 = long) */
|
||
16, /* bitsize */
|
||
false, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_signed, /* complain_on_overflow */
|
||
ppc_refhi_reloc, /* special_function */
|
||
"REFHI", /* name */
|
||
true, /* partial_inplace */
|
||
0xffffffff, /* src_mask */
|
||
0xffffffff, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
/* IMAGE_REL_PPC_REFLO 0x0011 */
|
||
/* Unused: */
|
||
HOWTO (IMAGE_REL_PPC_REFLO, /* type */
|
||
0, /* rightshift */
|
||
1, /* size (0 = byte, 1 = short, 2 = long) */
|
||
16, /* bitsize */
|
||
false, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_signed, /* complain_on_overflow */
|
||
ppc_refhi_reloc, /* special_function */
|
||
"REFLO", /* name */
|
||
true, /* partial_inplace */
|
||
0xffffffff, /* src_mask */
|
||
0xffffffff, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
/* IMAGE_REL_PPC_PAIR 0x0012 */
|
||
/* Unused: */
|
||
HOWTO (IMAGE_REL_PPC_PAIR, /* type */
|
||
0, /* rightshift */
|
||
1, /* size (0 = byte, 1 = short, 2 = long) */
|
||
16, /* bitsize */
|
||
false, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_signed, /* complain_on_overflow */
|
||
ppc_pair_reloc, /* special_function */
|
||
"PAIR", /* name */
|
||
true, /* partial_inplace */
|
||
0xffffffff, /* src_mask */
|
||
0xffffffff, /* dst_mask */
|
||
false) /* pcrel_offset */
|
||
};
|
||
|
||
|
||
|
||
|
||
/* Some really cheezy macros that can be turned on to test stderr :-) */
|
||
|
||
|
||
#ifdef DEBUG_RELOC
|
||
#define UN_IMPL(x) \
|
||
{ \
|
||
static int i; \
|
||
if (i == 0) \
|
||
{ \
|
||
i = 1; \
|
||
fprintf(stderr,"Unimplemented Relocation -- %s\n",x); \
|
||
} \
|
||
}
|
||
|
||
#define DUMP_RELOC(n,r) \
|
||
{ \
|
||
fprintf(stderr,"%s sym %d, addr %d, addend %d\n", \
|
||
n, (*(r->sym_ptr_ptr))->name, \
|
||
r->address, r->addend); \
|
||
}
|
||
|
||
/* Given a reloc name, n, and a pointer to an internal_reloc,
|
||
dump out interesting information on the contents
|
||
|
||
#define n_name _n._n_name
|
||
#define n_zeroes _n._n_n._n_zeroes
|
||
#define n_offset _n._n_n._n_offset
|
||
|
||
*/
|
||
|
||
#define DUMP_RELOC2(n,r) \
|
||
{ \
|
||
fprintf(stderr,"%s sym %d, r_vaddr %d\n", \
|
||
n, r->r_symndx, r->r_vaddr); \
|
||
}
|
||
|
||
#else
|
||
#define UN_IMPL(x)
|
||
#define DUMP_RELOC(n,r)
|
||
#define DUMP_RELOC2(n,r)
|
||
#endif
|
||
|
||
|
||
|
||
/* toc construction and management routines */
|
||
extern bfd* bfd_of_toc_owner;
|
||
extern long int global_toc_size;
|
||
|
||
extern long int import_table_size;
|
||
extern long int first_thunk_address;
|
||
extern long int thunk_size;
|
||
|
||
enum toc_type
|
||
{
|
||
default_toc,
|
||
toc_32,
|
||
toc_64
|
||
};
|
||
|
||
/* record a toc offset against a symbol */
|
||
static int
|
||
ppc_record_toc_entry(abfd, info, sec, sym, toc_kind)
|
||
bfd *abfd;
|
||
struct bfd_link_info *info;
|
||
asection *sec;
|
||
int sym;
|
||
enum toc_type toc_kind;
|
||
{
|
||
bfd_byte *t;
|
||
bfd_byte *old_contents;
|
||
asection *s;
|
||
int element_size;
|
||
int data;
|
||
int offset;
|
||
struct coff_link_hash_entry *h;
|
||
struct coff_symbol_struct *target;
|
||
int ret_val;
|
||
const char *name;
|
||
|
||
int *local_syms;
|
||
|
||
h = 0;
|
||
|
||
h = obj_coff_sym_hashes (abfd)[sym];
|
||
|
||
if (h == 0)
|
||
{
|
||
local_syms = obj_coff_local_toc_table(abfd);
|
||
if (local_syms == 0)
|
||
{
|
||
int i;
|
||
/* allocate a table */
|
||
local_syms =
|
||
(int *) bfd_zalloc (abfd,
|
||
obj_raw_syment_count(abfd) * sizeof(int));
|
||
if (local_syms == 0)
|
||
{
|
||
bfd_set_error (bfd_error_no_memory);
|
||
return false;
|
||
}
|
||
obj_coff_local_toc_table(abfd) = local_syms;
|
||
for (i = 0; i < obj_raw_syment_count(abfd); ++i)
|
||
local_syms[i] = 1;
|
||
}
|
||
|
||
if (local_syms[sym] == 1)
|
||
{
|
||
local_syms[sym] = global_toc_size;
|
||
ret_val = global_toc_size;
|
||
global_toc_size += 4;
|
||
#ifdef TOC_DEBUG
|
||
fprintf(stderr,
|
||
"Setting toc_offset for local sym %d to %d\n",
|
||
sym, ret_val);
|
||
#endif
|
||
}
|
||
else
|
||
{
|
||
ret_val = local_syms[sym];
|
||
#ifdef TOC_DEBUG
|
||
fprintf(stderr,
|
||
"toc_offset already set for local sym %d to %d\n",
|
||
sym, ret_val);
|
||
#endif
|
||
}
|
||
}
|
||
else
|
||
{
|
||
name = h->root.root.string;
|
||
|
||
/* check to see if there's a toc slot allocated. If not, do it
|
||
here. It will be used in relocate_section */
|
||
if (h->toc_offset == 1)
|
||
{
|
||
h->toc_offset = global_toc_size;
|
||
ret_val = global_toc_size;
|
||
global_toc_size += 4;
|
||
#ifdef TOC_DEBUG
|
||
fprintf(stderr,
|
||
"Setting toc_offset for sym %d (%s) [h=%p] to %d\n",
|
||
sym, name, h, ret_val);
|
||
#endif
|
||
}
|
||
else
|
||
{
|
||
ret_val = h->toc_offset;
|
||
#ifdef TOC_DEBUG
|
||
fprintf(stderr,
|
||
"toc_offset already set for sym %d (%s) [h=%p] to %d\n",
|
||
sym, name, h, ret_val);
|
||
#endif
|
||
}
|
||
}
|
||
|
||
return ret_val;
|
||
}
|
||
|
||
|
||
/* Provided the symbol, returns the value reffed */
|
||
static long get_symbol_value PARAMS ((asymbol *));
|
||
|
||
static long
|
||
get_symbol_value (symbol)
|
||
asymbol *symbol;
|
||
{
|
||
long relocation = 0;
|
||
|
||
if (bfd_is_com_section (symbol->section))
|
||
{
|
||
relocation = 0;
|
||
}
|
||
else
|
||
{
|
||
relocation = symbol->value +
|
||
symbol->section->output_section->vma +
|
||
symbol->section->output_offset;
|
||
}
|
||
|
||
return(relocation);
|
||
}
|
||
|
||
/* Return true if this relocation should
|
||
appear in the output .reloc section. */
|
||
|
||
static boolean in_reloc_p(abfd, howto)
|
||
bfd * abfd;
|
||
reloc_howto_type *howto;
|
||
{
|
||
return
|
||
(! howto->pc_relative)
|
||
&& (howto->type != IMAGE_REL_PPC_TOCREL16)
|
||
&& (howto->type != IMAGE_REL_PPC_IMGLUE);
|
||
}
|
||
|
||
/* this function is in charge of performing all the ppc PE relocations */
|
||
/* Don't yet know if we want to do this this particular way ... (krk) */
|
||
/* FIXME: (it is not yet enabled) */
|
||
|
||
static bfd_reloc_status_type
|
||
pe_ppc_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd,
|
||
error_message)
|
||
bfd *abfd;
|
||
arelent *reloc_entry;
|
||
asymbol *symbol_in;
|
||
PTR data;
|
||
asection *input_section;
|
||
bfd *output_bfd;
|
||
char **error_message;
|
||
{
|
||
/* the consth relocation comes in two parts, we have to remember
|
||
the state between calls, in these variables */
|
||
static boolean part1_consth_active = false;
|
||
static unsigned long part1_consth_value;
|
||
|
||
unsigned long insn;
|
||
unsigned long sym_value;
|
||
unsigned long unsigned_value;
|
||
unsigned short r_type;
|
||
long signed_value;
|
||
|
||
unsigned long addr = reloc_entry->address ; /*+ input_section->vma*/
|
||
bfd_byte *hit_data =addr + (bfd_byte *)(data);
|
||
|
||
fprintf(stderr, "pe_ppc_reloc (%s)\n", TARGET_LITTLE_NAME);
|
||
|
||
r_type = reloc_entry->howto->type;
|
||
|
||
if (output_bfd)
|
||
{
|
||
/* Partial linking - do nothing */
|
||
reloc_entry->address += input_section->output_offset;
|
||
return bfd_reloc_ok;
|
||
}
|
||
|
||
if (symbol_in != NULL
|
||
&& bfd_is_und_section (symbol_in->section))
|
||
{
|
||
/* Keep the state machine happy in case we're called again */
|
||
if (r_type == IMAGE_REL_PPC_REFHI)
|
||
{
|
||
part1_consth_active = true;
|
||
part1_consth_value = 0;
|
||
}
|
||
return(bfd_reloc_undefined);
|
||
}
|
||
|
||
if ((part1_consth_active) && (r_type != IMAGE_REL_PPC_PAIR))
|
||
{
|
||
part1_consth_active = false;
|
||
*error_message = (char *) "Missing PAIR";
|
||
return(bfd_reloc_dangerous);
|
||
}
|
||
|
||
|
||
sym_value = get_symbol_value(symbol_in);
|
||
|
||
return(bfd_reloc_ok);
|
||
}
|
||
|
||
/* The reloc processing routine for the optimized COFF linker. */
|
||
|
||
static boolean
|
||
coff_ppc_relocate_section (output_bfd, info, input_bfd, input_section,
|
||
contents, relocs, syms, sections)
|
||
bfd *output_bfd;
|
||
struct bfd_link_info *info;
|
||
bfd *input_bfd;
|
||
asection *input_section;
|
||
bfd_byte *contents;
|
||
struct internal_reloc *relocs;
|
||
struct internal_syment *syms;
|
||
asection **sections;
|
||
{
|
||
struct internal_reloc *rel;
|
||
struct internal_reloc *relend;
|
||
boolean hihalf;
|
||
bfd_vma hihalf_val;
|
||
asection *toc_section = 0;
|
||
bfd_vma relocation;
|
||
reloc_howto_type *howto = 0;
|
||
|
||
#ifdef DEBUG_RELOC
|
||
fprintf(stderr,
|
||
"pe_ppc_relocate_section (%s) for %s \n",
|
||
TARGET_LITTLE_NAME,
|
||
input_section->name);
|
||
|
||
#endif
|
||
|
||
/* If we are performing a relocateable link, we don't need to do a
|
||
thing. The caller will take care of adjusting the reloc
|
||
addresses and symbol indices. */
|
||
if (info->relocateable)
|
||
return true;
|
||
|
||
hihalf = false;
|
||
hihalf_val = 0;
|
||
|
||
rel = relocs;
|
||
relend = rel + input_section->reloc_count;
|
||
for (; rel < relend; rel++)
|
||
{
|
||
long symndx;
|
||
struct coff_link_hash_entry *h;
|
||
struct internal_syment *sym;
|
||
bfd_vma val;
|
||
|
||
asection *sec;
|
||
bfd_reloc_status_type rstat;
|
||
bfd_byte *loc;
|
||
|
||
unsigned short r_type = EXTRACT_TYPE (rel->r_type);
|
||
unsigned short r_flags = EXTRACT_FLAGS(rel->r_type);
|
||
unsigned short junk = EXTRACT_JUNK (rel->r_type);
|
||
|
||
#ifdef DEBUG_RELOC
|
||
/* now examine flags */
|
||
if (r_flags != 0)
|
||
{
|
||
fprintf (stderr, "Reloc with flags found!");
|
||
if ( r_flags & IMAGE_REL_PPC_NEG )
|
||
fprintf (stderr, " NEG");
|
||
if ( r_flags & IMAGE_REL_PPC_BRTAKEN )
|
||
fprintf (stderr, " BRTAKEN");
|
||
if ( r_flags & IMAGE_REL_PPC_BRNTAKEN )
|
||
fprintf (stderr, " BRNTAKEN");
|
||
if ( r_flags & IMAGE_REL_PPC_TOCDEFN )
|
||
fprintf (stderr, " TOCDEFN");
|
||
fprintf(stderr, "\n");
|
||
}
|
||
#endif
|
||
|
||
symndx = rel->r_symndx;
|
||
loc = contents + rel->r_vaddr - input_section->vma;
|
||
|
||
/* FIXME: check bounds on r_type */
|
||
howto = ppc_coff_howto_table + r_type;
|
||
|
||
if (symndx == -1)
|
||
{
|
||
h = NULL;
|
||
sym = NULL;
|
||
}
|
||
else
|
||
{
|
||
h = obj_coff_sym_hashes (input_bfd)[symndx];
|
||
sym = syms + symndx;
|
||
}
|
||
|
||
sec = NULL;
|
||
val = 0;
|
||
|
||
/* FIXME: PAIR unsupported in the following code */
|
||
if (h == NULL)
|
||
{
|
||
if (symndx == -1)
|
||
sec = bfd_abs_section_ptr;
|
||
else
|
||
{
|
||
sec = sections[symndx];
|
||
val = (sec->output_section->vma
|
||
+ sec->output_offset
|
||
+ sym->n_value
|
||
- sec->vma);
|
||
}
|
||
}
|
||
else
|
||
{
|
||
if (h->root.type == bfd_link_hash_defined
|
||
|| h->root.type == bfd_link_hash_defweak)
|
||
{
|
||
sec = h->root.u.def.section;
|
||
val = (h->root.u.def.value
|
||
+ sec->output_section->vma
|
||
+ sec->output_offset);
|
||
}
|
||
else
|
||
{
|
||
if (! ((*info->callbacks->undefined_symbol)
|
||
(info, h->root.root.string, input_bfd, input_section,
|
||
rel->r_vaddr - input_section->vma)))
|
||
return false;
|
||
}
|
||
}
|
||
|
||
rstat = bfd_reloc_ok;
|
||
|
||
/* Each case must do its own relocation, setting rstat appropriately */
|
||
switch (r_type)
|
||
{
|
||
default:
|
||
fprintf( stderr,
|
||
"ERROR: during reloc processing -- unsupported reloc %s\n",
|
||
howto->name);
|
||
bfd_set_error (bfd_error_bad_value);
|
||
abort();
|
||
return false;
|
||
case IMAGE_REL_PPC_TOCREL16:
|
||
{
|
||
bfd_vma our_toc_offset;
|
||
int fixit;
|
||
|
||
DUMP_RELOC2(howto->name, rel);
|
||
|
||
if (toc_section == 0)
|
||
{
|
||
toc_section = bfd_get_section_by_name (bfd_of_toc_owner,
|
||
TOC_SECTION_NAME);
|
||
#ifdef TOC_DEBUG
|
||
|
||
fprintf(stderr,
|
||
"BFD of toc owner %p, section addr of %s %p\n",
|
||
bfd_of_toc_owner, TOC_SECTION_NAME, toc_section);
|
||
#endif
|
||
|
||
if ( toc_section == NULL )
|
||
{
|
||
fprintf(stderr, "No Toc section!\n");
|
||
abort();
|
||
}
|
||
}
|
||
|
||
/*
|
||
* Amazing bit tricks present. As we may have seen earlier, we
|
||
* use the 1 bit to tell us whether or not a toc offset has been
|
||
* allocated. Now that they've all been allocated, we will use
|
||
* the 1 bit to tell us if we've written this particular toc
|
||
* entry out.
|
||
*/
|
||
fixit = false;
|
||
if (h == 0)
|
||
{ /* it is a file local symbol */
|
||
int *local_toc_table;
|
||
const char *name;
|
||
|
||
sym = syms + symndx;
|
||
name = sym->_n._n_name;
|
||
|
||
local_toc_table = obj_coff_local_toc_table(input_bfd);
|
||
our_toc_offset = local_toc_table[symndx];
|
||
|
||
if ((our_toc_offset & 1) != 0)
|
||
{
|
||
/* if it has been written out, it is marked with the
|
||
1 bit. Fix up our offset, but do not write it out
|
||
again.
|
||
*/
|
||
our_toc_offset &= ~1;
|
||
#ifdef TOC_DEBUG
|
||
|
||
fprintf(stderr,
|
||
"Not writing out toc_offset of %d for %s\n", our_toc_offset, name);
|
||
#endif
|
||
}
|
||
else
|
||
{
|
||
/* write out the toc entry */
|
||
#ifdef TOC_DEBUG
|
||
fprintf(stderr,
|
||
"Writing out toc_offset toc_section (%p,%p)+%d val %d for %s\n",
|
||
toc_section,
|
||
toc_section->contents,
|
||
our_toc_offset,
|
||
val,
|
||
name);
|
||
#endif
|
||
|
||
bfd_put_32(output_bfd,
|
||
val,
|
||
toc_section->contents + our_toc_offset);
|
||
|
||
local_toc_table[symndx] |= 1;
|
||
fixit = true;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
const char *name = h->root.root.string;
|
||
our_toc_offset = h->toc_offset;
|
||
if ((our_toc_offset & 1) != 0)
|
||
{
|
||
/* if it has been written out, it is marked with the
|
||
1 bit. Fix up our offset, but do not write it out
|
||
again.
|
||
*/
|
||
our_toc_offset &= ~1;
|
||
#ifdef TOC_DEBUG
|
||
fprintf(stderr,
|
||
"Not writing out toc_offset of %d for %s\n", our_toc_offset, name);
|
||
#endif
|
||
}
|
||
else
|
||
{
|
||
#ifdef TOC_DEBUG
|
||
/* write out the toc entry */
|
||
fprintf(stderr,
|
||
"Writing out toc_offset toc_section (%p,%p)+%d val %d for %s\n",
|
||
toc_section,
|
||
toc_section->contents,
|
||
our_toc_offset,
|
||
val,
|
||
name);
|
||
#endif
|
||
|
||
/* write out the toc entry */
|
||
bfd_put_32(output_bfd,
|
||
val,
|
||
toc_section->contents + our_toc_offset);
|
||
|
||
h->toc_offset |= 1;
|
||
/* The tricky part is that this is the address that */
|
||
/* needs a .reloc entry for it */
|
||
fixit = true;
|
||
}
|
||
}
|
||
|
||
if (fixit && info->base_file)
|
||
{
|
||
/* So if this is non pcrelative, and is referenced
|
||
to a section or a common symbol, then it needs a reloc */
|
||
|
||
/* relocation to a symbol in a section which
|
||
isn't absolute - we output the address here
|
||
to a file */
|
||
|
||
bfd_vma addr = toc_section->output_section->vma
|
||
+ toc_section->output_offset + our_toc_offset;
|
||
|
||
fprintf(stderr,
|
||
" Toc Section reloc candidate\n");
|
||
|
||
if (coff_data(output_bfd)->pe)
|
||
addr -= pe_data(output_bfd)->pe_opthdr.ImageBase;
|
||
fwrite (&addr, 1,4, (FILE *) info->base_file);
|
||
}
|
||
|
||
|
||
/* FIXME: this test is conservative */
|
||
if (our_toc_offset > toc_section->_raw_size)
|
||
{
|
||
fprintf(stderr,
|
||
"reloc offset is bigger than the toc size!\n");
|
||
abort();
|
||
}
|
||
|
||
/* Now we know the relocation for this toc reference */
|
||
relocation = our_toc_offset + TOC_LOAD_ADJUSTMENT;
|
||
rstat = _bfd_relocate_contents (howto,
|
||
input_bfd,
|
||
relocation,
|
||
loc);
|
||
}
|
||
break;
|
||
case IMAGE_REL_PPC_IFGLUE:
|
||
/* To solve this, we need to know whether or not the symbol */
|
||
/* appearing on the call instruction is a function included */
|
||
/* in the link or not. If it is, then we leave the nop instruction */
|
||
/* alone, and the reloc is done. */
|
||
|
||
/* Actually, for dll support on NT, this is likely not necessary at
|
||
all. For any library function, a glue code stub must be supplied
|
||
to the linker, and the glue will take care of the toc reload */
|
||
DUMP_RELOC2(howto->name, rel);
|
||
#if 0
|
||
if (h == 0)
|
||
{
|
||
/* this better be a static function */
|
||
fprintf(stderr,
|
||
"It's a static function.... \n");
|
||
}
|
||
else
|
||
{
|
||
/* this is an externally visible function */
|
||
/* is it present? */
|
||
if (h->root.type == bfd_link_hash_defined
|
||
|| h->root.type == bfd_link_hash_defweak)
|
||
{
|
||
fprintf(stderr,
|
||
"The function is present. \n");
|
||
;
|
||
}
|
||
else
|
||
{
|
||
fprintf(stderr,
|
||
"The function is not present. \n");
|
||
}
|
||
}
|
||
#endif
|
||
break;
|
||
case IMAGE_REL_PPC_SECREL:
|
||
/* Unimplemented: codeview debugging information */
|
||
/* For fast access to the header of the section
|
||
containing the item. */
|
||
break;
|
||
case IMAGE_REL_PPC_SECTION:
|
||
/* Unimplemented: codeview debugging information */
|
||
/* Is used to indicate that the value should be relative
|
||
to the beginning of the section that contains the
|
||
symbol */
|
||
break;
|
||
case IMAGE_REL_PPC_ABSOLUTE:
|
||
case IMAGE_REL_PPC_IMGLUE:
|
||
{
|
||
const char *my_name;
|
||
if (h == 0)
|
||
my_name = (syms+symndx)->_n._n_name;
|
||
else
|
||
my_name = h->root.root.string;
|
||
|
||
fprintf(stderr,
|
||
"Warning: unsupported reloc %s <file %s, section %s>\n",
|
||
howto->name,
|
||
bfd_get_filename(input_bfd),
|
||
input_section->name);
|
||
|
||
fprintf(stderr,"sym %d (%s), r_vaddr %d (%x)\n",
|
||
rel->r_symndx, my_name, rel->r_vaddr, rel->r_vaddr);
|
||
}
|
||
break;
|
||
|
||
case IMAGE_REL_PPC_ADDR32NB:
|
||
{
|
||
struct coff_link_hash_entry *myh = 0;
|
||
const char *name = 0;
|
||
DUMP_RELOC2(howto->name, rel);
|
||
if (h == 0)
|
||
{ /* it is a file local symbol */
|
||
sym = syms + symndx;
|
||
name = sym->_n._n_name;
|
||
}
|
||
else
|
||
{
|
||
char *target = 0;
|
||
|
||
name = h->root.root.string;
|
||
if (strcmp(".idata$2", name) == 0)
|
||
target = "__idata2_magic__";
|
||
else if (strcmp(".idata$4", name) == 0)
|
||
target = "__idata4_magic__";
|
||
else if (strcmp(".idata$5", name) == 0)
|
||
target = "__idata5_magic__";
|
||
else
|
||
abort();
|
||
|
||
myh = 0;
|
||
|
||
myh = coff_link_hash_lookup (coff_hash_table (info),
|
||
target,
|
||
false, false, true);
|
||
if (myh == 0)
|
||
{
|
||
fprintf(stderr, "Missing idata magic cookies, this cannot work anyway...\n");
|
||
abort();
|
||
}
|
||
|
||
val = myh->root.u.def.value + sec->output_section->vma + sec->output_offset;
|
||
if (first_thunk_address == 0)
|
||
{
|
||
int idata5offset;
|
||
myh = coff_link_hash_lookup (coff_hash_table (info),
|
||
"__idata5_magic__",
|
||
false, false, true);
|
||
first_thunk_address = myh->root.u.def.value + sec->output_section->vma +
|
||
sec->output_offset - pe_data(output_bfd)->pe_opthdr.ImageBase;
|
||
|
||
idata5offset = myh->root.u.def.value;
|
||
myh = coff_link_hash_lookup (coff_hash_table (info),
|
||
"__idata6_magic__",
|
||
false, false, true);
|
||
|
||
thunk_size = myh->root.u.def.value - idata5offset;
|
||
myh = coff_link_hash_lookup (coff_hash_table (info),
|
||
"__idata4_magic__",
|
||
false, false, true);
|
||
import_table_size = myh->root.u.def.value;
|
||
}
|
||
}
|
||
|
||
rstat = _bfd_relocate_contents (howto,
|
||
input_bfd,
|
||
val - pe_data(output_bfd)->pe_opthdr.ImageBase,
|
||
loc);
|
||
}
|
||
break;
|
||
|
||
case IMAGE_REL_PPC_ADDR16:
|
||
case IMAGE_REL_PPC_REL24:
|
||
case IMAGE_REL_PPC_ADDR24:
|
||
case IMAGE_REL_PPC_ADDR32:
|
||
DUMP_RELOC2(howto->name, rel);
|
||
rstat = _bfd_relocate_contents (howto,
|
||
input_bfd,
|
||
val,
|
||
loc);
|
||
break;
|
||
}
|
||
|
||
if ( info->base_file )
|
||
{
|
||
/* So if this is non pcrelative, and is referenced
|
||
to a section or a common symbol, then it needs a reloc */
|
||
if (sym && pe_data(output_bfd)->in_reloc_p(output_bfd, howto))
|
||
{
|
||
/* relocation to a symbol in a section which
|
||
isn't absolute - we output the address here
|
||
to a file */
|
||
bfd_vma addr = rel->r_vaddr
|
||
- input_section->vma
|
||
+ input_section->output_offset
|
||
+ input_section->output_section->vma;
|
||
|
||
if (coff_data(output_bfd)->pe)
|
||
{
|
||
addr -= pe_data(output_bfd)->pe_opthdr.ImageBase;
|
||
fprintf(stderr,
|
||
" adjusted down to %d", addr);
|
||
}
|
||
fprintf(stderr, "\n");
|
||
|
||
fwrite (&addr, 1,4, (FILE *) info->base_file);
|
||
}
|
||
}
|
||
|
||
switch (rstat)
|
||
{
|
||
default:
|
||
abort ();
|
||
case bfd_reloc_ok:
|
||
break;
|
||
case bfd_reloc_overflow:
|
||
{
|
||
const char *name;
|
||
char buf[SYMNMLEN + 1];
|
||
|
||
if (symndx == -1)
|
||
name = "*ABS*";
|
||
else if (h != NULL)
|
||
name = h->root.root.string;
|
||
else if (sym == NULL)
|
||
name = "*unknown*";
|
||
else if (sym->_n._n_n._n_zeroes == 0
|
||
&& sym->_n._n_n._n_offset != 0)
|
||
name = obj_coff_strings (input_bfd) + sym->_n._n_n._n_offset;
|
||
else
|
||
{
|
||
strncpy (buf, sym->_n._n_name, SYMNMLEN);
|
||
buf[SYMNMLEN] = '\0';
|
||
name = buf;
|
||
}
|
||
#if 0
|
||
else
|
||
{
|
||
name = _bfd_coff_internal_syment_name (input_bfd, sym, buf);
|
||
if (name == NULL)
|
||
return false;
|
||
}
|
||
#endif
|
||
|
||
if (! ((*info->callbacks->reloc_overflow)
|
||
(info, name, howto->name,
|
||
(bfd_vma) 0, input_bfd,
|
||
input_section, rel->r_vaddr - input_section->vma)))
|
||
return false;
|
||
}
|
||
}
|
||
|
||
}
|
||
|
||
return true;
|
||
}
|
||
|
||
#ifdef COFF_IMAGE_WITH_PE
|
||
|
||
long int global_toc_size = 0;
|
||
|
||
bfd* bfd_of_toc_owner = 0;
|
||
|
||
long int import_table_size;
|
||
long int first_thunk_address;
|
||
long int thunk_size;
|
||
|
||
|
||
boolean
|
||
ppc_allocate_toc_section (info)
|
||
struct bfd_link_info *info;
|
||
{
|
||
asection *s;
|
||
bfd_byte *foo;
|
||
static char test_char = '1';
|
||
|
||
#ifdef DEBUG_TOC
|
||
fprintf(stderr,
|
||
"ppc_allocate_toc_section: allocating %s section of size %d\n",
|
||
TOC_SECTION_NAME, global_toc_size);
|
||
#endif
|
||
|
||
if ( global_toc_size == 0 ) /* FIXME: does this get me in trouble? */
|
||
return true;
|
||
|
||
if (bfd_of_toc_owner == 0)
|
||
{
|
||
fprintf(stderr,
|
||
"There is no bfd that owns the toc section!\n");
|
||
abort();
|
||
}
|
||
|
||
s = bfd_get_section_by_name ( bfd_of_toc_owner , TOC_SECTION_NAME);
|
||
if (s == NULL)
|
||
{
|
||
fprintf(stderr, "No Toc section!\n");
|
||
abort();
|
||
}
|
||
|
||
foo = bfd_alloc(bfd_of_toc_owner, global_toc_size);
|
||
memset(foo, test_char, global_toc_size);
|
||
|
||
s->_raw_size = s->_cooked_size = global_toc_size;
|
||
s->contents = foo;
|
||
|
||
return true;
|
||
}
|
||
|
||
boolean
|
||
ppc_process_before_allocation (abfd, info)
|
||
bfd *abfd;
|
||
struct bfd_link_info *info;
|
||
{
|
||
asection *sec;
|
||
struct internal_reloc *i, *rel;
|
||
|
||
#if 0
|
||
fprintf(stderr,
|
||
"ppc_process_before_allocation: BFD %s\n",
|
||
bfd_get_filename(abfd));
|
||
#endif
|
||
|
||
/* here we have a bfd that is to be included on the link. We have a hook
|
||
to do reloc rummaging, before section sizes are nailed down. */
|
||
|
||
_bfd_coff_get_external_symbols(abfd);
|
||
|
||
/* rummage around all the relocs and map the toc */
|
||
sec = abfd->sections;
|
||
|
||
if (sec == 0)
|
||
{
|
||
return true;
|
||
}
|
||
|
||
for (; sec != 0; sec = sec->next)
|
||
{
|
||
int toc_offset;
|
||
#ifdef DEBUG_RELOC
|
||
fprintf(stderr,
|
||
" section %s reloc count %d\n",
|
||
sec->name,
|
||
sec->reloc_count);
|
||
#endif
|
||
|
||
if (sec->reloc_count == 0)
|
||
continue;
|
||
|
||
/* load the relocs */
|
||
/* FIXME: there may be a storage leak here */
|
||
i=_bfd_coff_read_internal_relocs(abfd,sec,1,0,0,0);
|
||
|
||
if (i == 0)
|
||
abort();
|
||
|
||
for (rel=i;rel<i+sec->reloc_count;++rel)
|
||
{
|
||
unsigned short r_type = EXTRACT_TYPE (rel->r_type);
|
||
unsigned short r_flags = EXTRACT_FLAGS(rel->r_type);
|
||
unsigned short junk = EXTRACT_JUNK (rel->r_type);
|
||
|
||
#ifdef DEBUG_RELOC
|
||
/* now examine flags */
|
||
if (r_flags != 0)
|
||
{
|
||
fprintf (stderr, "Reloc with flags found!");
|
||
if ( r_flags & IMAGE_REL_PPC_NEG )
|
||
fprintf (stderr, " NEG");
|
||
if ( r_flags & IMAGE_REL_PPC_BRTAKEN )
|
||
fprintf (stderr, " BRTAKEN");
|
||
if ( r_flags & IMAGE_REL_PPC_BRNTAKEN )
|
||
fprintf (stderr, " BRNTAKEN");
|
||
if ( r_flags & IMAGE_REL_PPC_TOCDEFN )
|
||
fprintf (stderr, " TOCDEFN");
|
||
fprintf(stderr, "\n");
|
||
}
|
||
#endif
|
||
|
||
DUMP_RELOC2(ppc_coff_howto_table[r_type].name, rel);
|
||
|
||
switch(r_type)
|
||
{
|
||
case IMAGE_REL_PPC_TOCREL16:
|
||
toc_offset = ppc_record_toc_entry(abfd, info, sec,
|
||
rel->r_symndx, default_toc);
|
||
break;
|
||
default:
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
#endif
|
||
|
||
|
||
static bfd_reloc_status_type
|
||
ppc_refhi_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;
|
||
{
|
||
UN_IMPL("REFHI");
|
||
DUMP_RELOC("REFHI",reloc_entry);
|
||
|
||
if (output_bfd == (bfd *) NULL)
|
||
return bfd_reloc_continue;
|
||
|
||
return bfd_reloc_undefined;
|
||
}
|
||
|
||
static bfd_reloc_status_type
|
||
ppc_reflo_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;
|
||
{
|
||
UN_IMPL("REFLO");
|
||
DUMP_RELOC("REFLO",reloc_entry);
|
||
|
||
if (output_bfd == (bfd *) NULL)
|
||
return bfd_reloc_continue;
|
||
|
||
return bfd_reloc_undefined;
|
||
}
|
||
|
||
static bfd_reloc_status_type
|
||
ppc_pair_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;
|
||
{
|
||
UN_IMPL("PAIR");
|
||
DUMP_RELOC("PAIR",reloc_entry);
|
||
|
||
if (output_bfd == (bfd *) NULL)
|
||
return bfd_reloc_continue;
|
||
|
||
return bfd_reloc_undefined;
|
||
}
|
||
|
||
|
||
static bfd_reloc_status_type
|
||
ppc_toc16_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;
|
||
{
|
||
UN_IMPL("TOCREL16");
|
||
DUMP_RELOC("TOCREL16",reloc_entry);
|
||
|
||
if (output_bfd == (bfd *) NULL)
|
||
{
|
||
return bfd_reloc_continue;
|
||
}
|
||
|
||
return bfd_reloc_ok;
|
||
}
|
||
|
||
/* ADDR32NB : 32 bit address relative to the virtual origin. */
|
||
/* (On the alpha, this is always a linker generated thunk)*/
|
||
/* (i.e. 32bit addr relative to the image base) */
|
||
/* */
|
||
/* */
|
||
|
||
static bfd_reloc_status_type
|
||
ppc_addr32nb_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;
|
||
{
|
||
UN_IMPL("ADDR32NB");
|
||
DUMP_RELOC("ADDR32NB",reloc_entry);
|
||
|
||
return bfd_reloc_ok;
|
||
}
|
||
|
||
static bfd_reloc_status_type
|
||
ppc_secrel_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;
|
||
{
|
||
UN_IMPL("SECREL");
|
||
DUMP_RELOC("SECREL",reloc_entry);
|
||
|
||
if (output_bfd == (bfd *) NULL)
|
||
return bfd_reloc_continue;
|
||
|
||
return bfd_reloc_ok;
|
||
}
|
||
|
||
static bfd_reloc_status_type
|
||
ppc_section_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;
|
||
{
|
||
UN_IMPL("SECTION");
|
||
DUMP_RELOC("SECTION",reloc_entry);
|
||
|
||
if (output_bfd == (bfd *) NULL)
|
||
return bfd_reloc_continue;
|
||
|
||
return bfd_reloc_ok;
|
||
}
|
||
|
||
static bfd_reloc_status_type
|
||
ppc_imglue_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;
|
||
{
|
||
UN_IMPL("IMGLUE");
|
||
DUMP_RELOC("IMGLUE",reloc_entry);
|
||
|
||
if (output_bfd == (bfd *) NULL)
|
||
return bfd_reloc_continue;
|
||
|
||
return bfd_reloc_ok;
|
||
}
|
||
|
||
|
||
|
||
#define MAX_RELOC_INDEX \
|
||
(sizeof(ppc_coff_howto_table) / sizeof(ppc_coff_howto_table[0]) - 1)
|
||
|
||
|
||
/* FIXME: There is a possiblity that when we read in a reloc from a file,
|
||
that there are some bits encoded in the upper portion of the
|
||
type field. Not yet implemented.
|
||
*/
|
||
static void ppc_coff_rtype2howto PARAMS ((arelent *relent,
|
||
struct internal_reloc *internal));
|
||
|
||
static void
|
||
ppc_coff_rtype2howto (relent, internal)
|
||
arelent *relent;
|
||
struct internal_reloc *internal;
|
||
{
|
||
|
||
/* We can encode one of three things in the type field, aside from the
|
||
type:
|
||
1. IMAGE_REL_PPC_NEG - indicates the value field is a subtraction
|
||
value, rather than an addition value
|
||
2. IMAGE_REL_PPC_BRTAKEN, IMAGE_REL_PPC_BRNTAKEN - indicates that
|
||
the branch is expected to be taken or not.
|
||
3. IMAGE_REL_PPC_TOCDEFN - toc slot definition in the file
|
||
For now, we just strip this stuff to find the type, and ignore it other
|
||
than that.
|
||
*/
|
||
|
||
unsigned short r_type = EXTRACT_TYPE (internal->r_type);
|
||
unsigned short r_flags = EXTRACT_FLAGS(internal->r_type);
|
||
unsigned short junk = EXTRACT_JUNK (internal->r_type);
|
||
|
||
/* the masking process only slices off the bottom byte for r_type. */
|
||
if ( r_type > MAX_RELOC_INDEX )
|
||
{
|
||
fprintf(stderr,
|
||
"ppc_coff_rtype2howto: reloc index %d out of range [%d, %d]\n",
|
||
internal->r_type, 0, MAX_RELOC_INDEX);
|
||
abort();
|
||
}
|
||
|
||
/* check for absolute crap */
|
||
if ( junk != 0 )
|
||
{
|
||
fprintf(stderr,
|
||
"ppc_coff_rtype2howto: reloc index %d contains junk %d\n",
|
||
internal->r_type, junk);
|
||
abort();
|
||
}
|
||
|
||
#ifdef DEBUG_RELOC
|
||
/* now examine flags */
|
||
if (r_flags != 0)
|
||
{
|
||
fprintf (stderr, "Reloc with flags found!");
|
||
if ( r_flags & IMAGE_REL_PPC_NEG )
|
||
fprintf (stderr, " NEG");
|
||
if ( r_flags & IMAGE_REL_PPC_BRTAKEN )
|
||
fprintf (stderr, " BRTAKEN");
|
||
if ( r_flags & IMAGE_REL_PPC_BRNTAKEN )
|
||
fprintf (stderr, " BRNTAKEN");
|
||
if ( r_flags & IMAGE_REL_PPC_TOCDEFN )
|
||
fprintf (stderr, " TOCDEFN");
|
||
fprintf(stderr, "\n");
|
||
}
|
||
#endif
|
||
|
||
switch(r_type)
|
||
{
|
||
case IMAGE_REL_PPC_ADDR16:
|
||
case IMAGE_REL_PPC_REL24:
|
||
case IMAGE_REL_PPC_ADDR24:
|
||
case IMAGE_REL_PPC_TOCREL16:
|
||
case IMAGE_REL_PPC_ADDR32:
|
||
case IMAGE_REL_PPC_IFGLUE:
|
||
case IMAGE_REL_PPC_ADDR32NB:
|
||
case IMAGE_REL_PPC_SECTION:
|
||
case IMAGE_REL_PPC_SECREL:
|
||
DUMP_RELOC2(ppc_coff_howto_table[r_type].name, internal);
|
||
break;
|
||
case IMAGE_REL_PPC_IMGLUE:
|
||
DUMP_RELOC2(ppc_coff_howto_table[r_type].name, internal);
|
||
/* IMGLUE relocs have big numbers in them. Don't know what for yet. */
|
||
internal->r_vaddr = 0; /* make it zero for now */
|
||
break;
|
||
default:
|
||
fprintf(stderr,
|
||
"Warning: Unsupported reloc %s [%d] used -- it may not work.\n",
|
||
ppc_coff_howto_table[r_type].name,
|
||
r_type);
|
||
break;
|
||
}
|
||
|
||
relent->howto = ppc_coff_howto_table + r_type;
|
||
|
||
}
|
||
|
||
static reloc_howto_type *
|
||
coff_ppc_rtype_to_howto (abfd, sec, rel, h, sym, addendp)
|
||
bfd *abfd;
|
||
asection *sec;
|
||
struct internal_reloc *rel;
|
||
struct coff_link_hash_entry *h;
|
||
struct internal_syment *sym;
|
||
bfd_vma *addendp;
|
||
{
|
||
reloc_howto_type *howto;
|
||
|
||
/* We can encode one of three things in the type field, aside from the
|
||
type:
|
||
1. IMAGE_REL_PPC_NEG - indicates the value field is a subtraction
|
||
value, rather than an addition value
|
||
2. IMAGE_REL_PPC_BRTAKEN, IMAGE_REL_PPC_BRNTAKEN - indicates that
|
||
the branch is expected to be taken or not.
|
||
3. IMAGE_REL_PPC_TOCDEFN - toc slot definition in the file
|
||
For now, we just strip this stuff to find the type, and ignore it other
|
||
than that.
|
||
*/
|
||
|
||
unsigned short r_type = EXTRACT_TYPE (rel->r_type);
|
||
unsigned short r_flags = EXTRACT_FLAGS(rel->r_type);
|
||
unsigned short junk = EXTRACT_JUNK (rel->r_type);
|
||
|
||
fprintf(stderr,
|
||
"coff_ppc_rtype_to_howto\n");
|
||
|
||
/* the masking process only slices off the bottom byte for r_type. */
|
||
if ( r_type > MAX_RELOC_INDEX )
|
||
{
|
||
fprintf(stderr,
|
||
"coff_ppc_rtype_to_howto: index %d out of range [%d, %d]\n",
|
||
r_type, 0, MAX_RELOC_INDEX);
|
||
abort();
|
||
}
|
||
|
||
/* check for absolute crap */
|
||
if ( junk != 0 )
|
||
{
|
||
fprintf(stderr,
|
||
"coff_ppc_rtype_to_howto: reloc index %d contains junk %d\n",
|
||
rel->r_type, junk);
|
||
abort();
|
||
}
|
||
|
||
#ifdef DEBUG_RELOC
|
||
/* now examine flags */
|
||
if (r_flags != 0)
|
||
{
|
||
fprintf (stderr, "Reloc with flags found!");
|
||
if ( r_flags & IMAGE_REL_PPC_NEG )
|
||
fprintf (stderr, " NEG");
|
||
if ( r_flags & IMAGE_REL_PPC_BRTAKEN )
|
||
fprintf (stderr, " BRTAKEN");
|
||
if ( r_flags & IMAGE_REL_PPC_BRNTAKEN )
|
||
fprintf (stderr, " BRNTAKEN");
|
||
if ( r_flags & IMAGE_REL_PPC_TOCDEFN )
|
||
fprintf (stderr, " TOCDEFN");
|
||
fprintf(stderr, "\n");
|
||
}
|
||
#endif
|
||
|
||
switch(r_type)
|
||
{
|
||
case IMAGE_REL_PPC_ADDR32NB:
|
||
DUMP_RELOC2(ppc_coff_howto_table[r_type].name, rel);
|
||
*addendp -= pe_data(sec->output_section->owner)->pe_opthdr.ImageBase;
|
||
break;
|
||
case IMAGE_REL_PPC_ADDR16:
|
||
case IMAGE_REL_PPC_REL24:
|
||
case IMAGE_REL_PPC_ADDR24:
|
||
case IMAGE_REL_PPC_TOCREL16:
|
||
case IMAGE_REL_PPC_ADDR32:
|
||
case IMAGE_REL_PPC_IFGLUE:
|
||
case IMAGE_REL_PPC_SECTION:
|
||
case IMAGE_REL_PPC_SECREL:
|
||
DUMP_RELOC2(ppc_coff_howto_table[r_type].name, rel);
|
||
break;
|
||
case IMAGE_REL_PPC_IMGLUE:
|
||
DUMP_RELOC2(ppc_coff_howto_table[r_type].name, rel);
|
||
/* IMGLUE relocs have big numbers in them. Don't know what for yet. */
|
||
rel->r_vaddr = 0; /* make it zero for now */
|
||
break;
|
||
default:
|
||
fprintf(stderr,
|
||
"Warning: Unsupported reloc %s [%d] used -- it may not work.\n",
|
||
ppc_coff_howto_table[r_type].name,
|
||
r_type);
|
||
break;
|
||
}
|
||
|
||
howto = ppc_coff_howto_table + r_type;
|
||
return howto;
|
||
}
|
||
|
||
|
||
/* a cheesy little macro to make the code a little more readable */
|
||
#define HOW2MAP(bfd_rtype,ppc_rtype) \
|
||
case bfd_rtype: return &ppc_coff_howto_table[ppc_rtype]
|
||
|
||
static reloc_howto_type *ppc_coff_reloc_type_lookup
|
||
PARAMS ((bfd *, bfd_reloc_code_real_type));
|
||
|
||
static reloc_howto_type *
|
||
ppc_coff_reloc_type_lookup (abfd, code)
|
||
bfd *abfd;
|
||
bfd_reloc_code_real_type code;
|
||
{
|
||
|
||
#ifdef DEBUG_RELOC
|
||
fprintf(stderr, "ppc_coff_reloc_type_lookup for %s\n",
|
||
bfd_get_reloc_code_name(code));
|
||
#endif
|
||
|
||
switch (code)
|
||
{
|
||
HOW2MAP(BFD_RELOC_16_GOT_PCREL, IMAGE_REL_PPC_IFGLUE);
|
||
HOW2MAP(BFD_RELOC_16, IMAGE_REL_PPC_ADDR16);
|
||
HOW2MAP(BFD_RELOC_PPC_B26, IMAGE_REL_PPC_REL24);
|
||
HOW2MAP(BFD_RELOC_PPC_BA26, IMAGE_REL_PPC_ADDR24);
|
||
HOW2MAP(BFD_RELOC_PPC_TOC16, IMAGE_REL_PPC_TOCREL16);
|
||
HOW2MAP(BFD_RELOC_32, IMAGE_REL_PPC_ADDR32);
|
||
HOW2MAP(BFD_RELOC_RVA, IMAGE_REL_PPC_ADDR32NB);
|
||
default:
|
||
fprintf(stderr,
|
||
"\treturning NULL\n");
|
||
return NULL;
|
||
}
|
||
|
||
return NULL;
|
||
}
|
||
|
||
#undef HOW2MAP
|
||
|
||
|
||
/* Tailor coffcode.h -- macro heaven. */
|
||
|
||
#define RTYPE2HOWTO(cache_ptr, dst) ppc_coff_rtype2howto (cache_ptr, dst)
|
||
|
||
#ifndef COFF_IMAGE_WITH_PE
|
||
static void
|
||
ppc_coff_swap_sym_in_hook ();
|
||
#endif
|
||
|
||
/* We use the special COFF backend linker, with our own special touch. */
|
||
|
||
#define coff_bfd_reloc_type_lookup ppc_coff_reloc_type_lookup
|
||
#define coff_rtype_to_howto coff_ppc_rtype_to_howto
|
||
#define coff_relocate_section coff_ppc_relocate_section
|
||
|
||
#ifndef COFF_IMAGE_WITH_PE
|
||
#define coff_swap_sym_in_hook ppc_coff_swap_sym_in_hook
|
||
#endif
|
||
|
||
#define SELECT_RELOC(internal, howto) {internal.r_type=howto->type;}
|
||
|
||
#define COFF_PAGE_SIZE 0x1000
|
||
|
||
#define POWERPC_LE_PE
|
||
|
||
#include "coffcode.h"
|
||
|
||
|
||
|
||
#ifndef COFF_IMAGE_WITH_PE
|
||
static void
|
||
ppc_coff_swap_sym_in_hook (abfd, ext1, in1)
|
||
bfd *abfd;
|
||
PTR ext1;
|
||
PTR in1;
|
||
{
|
||
SYMENT *ext = (SYMENT *)ext1;
|
||
struct internal_syment *in = (struct internal_syment *)in1;
|
||
|
||
#if 0
|
||
if (bfd_of_toc_owner != 0) /* we already have a toc, so go home */
|
||
return;
|
||
#endif
|
||
|
||
if (strcmp(in->_n._n_name, ".toc") == 0)
|
||
{
|
||
flagword flags;
|
||
register asection *s;
|
||
char *foo;
|
||
|
||
s = bfd_get_section_by_name ( abfd , TOC_SECTION_NAME);
|
||
if (s != NULL)
|
||
{
|
||
return;
|
||
}
|
||
|
||
flags = SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY ;
|
||
|
||
#ifdef TOC_DEBUG
|
||
fprintf(stderr,
|
||
"ppc_coff_swap_sym_in_hook: about to create the %s section\n",
|
||
TOC_SECTION_NAME);
|
||
#endif
|
||
|
||
s = bfd_make_section (abfd, TOC_SECTION_NAME);
|
||
|
||
if (s == NULL
|
||
|| !bfd_set_section_flags (abfd, s, flags)
|
||
|| !bfd_set_section_alignment (abfd, s, 2))
|
||
{
|
||
fprintf(stderr,
|
||
"toc section allocation failed!\n");
|
||
abort();
|
||
}
|
||
|
||
/* save the bfd for later allocation */
|
||
bfd_of_toc_owner = abfd;
|
||
}
|
||
|
||
return;
|
||
}
|
||
#endif
|
||
|
||
|
||
|
||
/* The transfer vectors that lead the outside world to all of the above. */
|
||
|
||
#ifdef TARGET_LITTLE_SYM
|
||
const bfd_target
|
||
TARGET_LITTLE_SYM =
|
||
{
|
||
TARGET_LITTLE_NAME, /* name or coff-arm-little */
|
||
bfd_target_coff_flavour,
|
||
false, /* data byte order is little */
|
||
false, /* header byte order is little */
|
||
|
||
(HAS_RELOC | EXEC_P | /* FIXME: object flags */
|
||
HAS_LINENO | HAS_DEBUG |
|
||
HAS_SYMS | HAS_LOCALS | WP_TEXT),
|
||
|
||
(SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
|
||
0, /* leading char */
|
||
'/', /* ar_pad_char */
|
||
15, /* ar_max_namelen??? FIXMEmgo */
|
||
|
||
bfd_getl64, bfd_getl_signed_64, bfd_putl64,
|
||
bfd_getl32, bfd_getl_signed_32, bfd_putl32,
|
||
bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */
|
||
|
||
bfd_getl64, bfd_getl_signed_64, bfd_putl64,
|
||
bfd_getl32, bfd_getl_signed_32, bfd_putl32,
|
||
bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */
|
||
|
||
{_bfd_dummy_target, coff_object_p, /* bfd_check_format */
|
||
bfd_generic_archive_p, /* _bfd_dummy_target */ coff_object_p },
|
||
{bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */
|
||
bfd_false},
|
||
{bfd_false, coff_write_object_contents, /* bfd_write_contents */
|
||
_bfd_write_archive_contents, bfd_false},
|
||
|
||
BFD_JUMP_TABLE_GENERIC (coff),
|
||
BFD_JUMP_TABLE_COPY (coff),
|
||
BFD_JUMP_TABLE_CORE (_bfd_nocore),
|
||
BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
|
||
BFD_JUMP_TABLE_SYMBOLS (coff),
|
||
BFD_JUMP_TABLE_RELOCS (coff),
|
||
BFD_JUMP_TABLE_WRITE (coff),
|
||
BFD_JUMP_TABLE_LINK (coff),
|
||
BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
|
||
|
||
COFF_SWAP_TABLE,
|
||
};
|
||
#endif
|
||
|
||
#ifdef TARGET_BIG_SYM
|
||
const bfd_target
|
||
TARGET_BIG_SYM =
|
||
{
|
||
TARGET_BIG_NAME,
|
||
bfd_target_coff_flavour,
|
||
true, /* data byte order is big */
|
||
true, /* header byte order is big */
|
||
|
||
(HAS_RELOC | EXEC_P | /* FIXME: object flags */
|
||
HAS_LINENO | HAS_DEBUG |
|
||
HAS_SYMS | HAS_LOCALS | WP_TEXT),
|
||
|
||
(SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
|
||
0, /* leading char */
|
||
'/', /* ar_pad_char */
|
||
15, /* ar_max_namelen??? FIXMEmgo */
|
||
|
||
bfd_getb64, bfd_getb_signed_64, bfd_putb64,
|
||
bfd_getb32, bfd_getb_signed_32, bfd_putb32,
|
||
bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */
|
||
|
||
bfd_getb64, bfd_getb_signed_64, bfd_putb64,
|
||
bfd_getb32, bfd_getb_signed_32, bfd_putb32,
|
||
bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */
|
||
|
||
{_bfd_dummy_target, coff_object_p, /* bfd_check_format */
|
||
bfd_generic_archive_p, /* _bfd_dummy_target */ coff_object_p },
|
||
{bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */
|
||
bfd_false},
|
||
{bfd_false, coff_write_object_contents, /* bfd_write_contents */
|
||
_bfd_write_archive_contents, bfd_false},
|
||
|
||
BFD_JUMP_TABLE_GENERIC (coff),
|
||
BFD_JUMP_TABLE_COPY (coff),
|
||
BFD_JUMP_TABLE_CORE (_bfd_nocore),
|
||
BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
|
||
BFD_JUMP_TABLE_SYMBOLS (coff),
|
||
BFD_JUMP_TABLE_RELOCS (coff),
|
||
BFD_JUMP_TABLE_WRITE (coff),
|
||
BFD_JUMP_TABLE_LINK (coff),
|
||
BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
|
||
|
||
COFF_SWAP_TABLE,
|
||
};
|
||
|
||
#endif
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|