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/* BFD back-end for Zilog Z800n COFF binaries. |
/* BFD back-end for Zilog Z800n COFF binaries. |
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Copyright 1992, 1993, 1994, 1995, 1997, 1999, 2000, 2001 |
Copyright 1992, 1993, 1994, 1995, 1997, 1999, 2000, 2001, 2002, 2003, |
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Free Software Foundation, Inc. |
2004 Free Software Foundation, Inc. |
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Contributed by Cygnus Support. |
Contributed by Cygnus Support. |
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Written by Steve Chamberlain, <sac@cygnus.com>. |
Written by Steve Chamberlain, <sac@cygnus.com>. |
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#include "coff/internal.h" |
#include "coff/internal.h" |
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#include "libcoff.h" |
#include "libcoff.h" |
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static void extra_case PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_order *, arelent *, bfd_byte *, unsigned int *, unsigned int *)); |
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static void reloc_processing PARAMS ((arelent *, struct internal_reloc *, asymbol **, bfd *, asection *)); |
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static void rtype2howto PARAMS ((arelent *, struct internal_reloc *)); |
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static int coff_z8k_select_reloc PARAMS ((reloc_howto_type *)); |
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#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (1) |
#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (1) |
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static reloc_howto_type r_imm32 = |
static reloc_howto_type r_imm32 = |
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HOWTO (R_IMM32, 0, 2, 32, false, 0, |
HOWTO (R_IMM32, 0, 2, 32, FALSE, 0, |
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complain_overflow_bitfield, 0, "r_imm32", true, 0xffffffff, |
complain_overflow_bitfield, 0, "r_imm32", TRUE, 0xffffffff, |
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0xffffffff, false); |
0xffffffff, FALSE); |
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static reloc_howto_type r_imm4l = |
static reloc_howto_type r_imm4l = |
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HOWTO (R_IMM4L, 0, 0, 4, false, 0, |
HOWTO (R_IMM4L, 0, 0, 4, FALSE, 0, |
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complain_overflow_bitfield, 0, "r_imm4l", true, 0xf, 0xf, false); |
complain_overflow_bitfield, 0, "r_imm4l", TRUE, 0xf, 0xf, FALSE); |
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static reloc_howto_type r_da = |
static reloc_howto_type r_da = |
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HOWTO (R_IMM16, 0, 1, 16, false, 0, |
HOWTO (R_IMM16, 0, 1, 16, FALSE, 0, |
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complain_overflow_bitfield, 0, "r_da", true, 0x0000ffff, 0x0000ffff, |
complain_overflow_bitfield, 0, "r_da", TRUE, 0x0000ffff, 0x0000ffff, |
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false); |
FALSE); |
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static reloc_howto_type r_imm8 = |
static reloc_howto_type r_imm8 = |
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HOWTO (R_IMM8, 0, 0, 8, false, 0, |
HOWTO (R_IMM8, 0, 0, 8, FALSE, 0, |
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complain_overflow_bitfield, 0, "r_imm8", true, 0x000000ff, 0x000000ff, |
complain_overflow_bitfield, 0, "r_imm8", TRUE, 0x000000ff, 0x000000ff, |
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false); |
FALSE); |
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static reloc_howto_type r_rel16 = |
static reloc_howto_type r_rel16 = |
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HOWTO (R_REL16, 0, 1, 16, false, 0, |
HOWTO (R_REL16, 0, 1, 16, FALSE, 0, |
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complain_overflow_bitfield, 0, "r_rel16", true, 0x0000ffff, 0x0000ffff, |
complain_overflow_bitfield, 0, "r_rel16", TRUE, 0x0000ffff, 0x0000ffff, |
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true); |
TRUE); |
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static reloc_howto_type r_jr = |
static reloc_howto_type r_jr = |
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HOWTO (R_JR, 0, 0, 8, true, 0, complain_overflow_signed, 0, |
HOWTO (R_JR, 0, 0, 8, TRUE, 0, complain_overflow_signed, 0, |
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"r_jr", true, 0, 0, true); |
"r_jr", TRUE, 0, 0, TRUE); |
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static reloc_howto_type r_disp7 = |
static reloc_howto_type r_disp7 = |
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HOWTO (R_DISP7, 0, 0, 7, true, 0, complain_overflow_bitfield, 0, |
HOWTO (R_DISP7, 0, 0, 7, TRUE, 0, complain_overflow_bitfield, 0, |
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"r_disp7", true, 0, 0, true); |
"r_disp7", TRUE, 0, 0, TRUE); |
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static reloc_howto_type r_callr = |
static reloc_howto_type r_callr = |
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HOWTO (R_CALLR, 0, 1, 12, true, 0, complain_overflow_signed, 0, |
HOWTO (R_CALLR, 0, 1, 12, TRUE, 0, complain_overflow_signed, 0, |
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"r_callr", true, 0xfff, 0xfff, true); |
"r_callr", TRUE, 0xfff, 0xfff, TRUE); |
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/* Turn a howto into a reloc number */ |
/* Turn a howto into a reloc number */ |
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static int |
static int |
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coff_z8k_select_reloc (howto) |
coff_z8k_select_reloc (reloc_howto_type *howto) |
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reloc_howto_type *howto; |
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{ |
{ |
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return howto->type; |
return howto->type; |
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} |
} |
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/* Code to turn a r_type into a howto ptr, uses the above howto table. */ |
/* Code to turn a r_type into a howto ptr, uses the above howto table. */ |
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static void |
static void |
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rtype2howto (internal, dst) |
rtype2howto (arelent *internal, struct internal_reloc *dst) |
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arelent * internal; |
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struct internal_reloc *dst; |
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{ |
{ |
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switch (dst->r_type) |
switch (dst->r_type) |
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{ |
{ |
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reloc_processing(relent, reloc, symbols, abfd, section) |
reloc_processing(relent, reloc, symbols, abfd, section) |
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static void |
static void |
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reloc_processing (relent, reloc, symbols, abfd, section) |
reloc_processing (arelent *relent, |
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arelent * relent; |
struct internal_reloc *reloc, |
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struct internal_reloc * reloc; |
asymbol **symbols, |
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asymbol ** symbols; |
bfd *abfd, |
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bfd * abfd; |
asection *section) |
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asection * section; |
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{ |
{ |
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relent->address = reloc->r_vaddr; |
relent->address = reloc->r_vaddr; |
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rtype2howto (relent, reloc); |
rtype2howto (relent, reloc); |
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} |
} |
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static void |
static void |
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extra_case (in_abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr) |
extra_case (bfd *in_abfd, |
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bfd * in_abfd; |
struct bfd_link_info *link_info, |
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struct bfd_link_info * link_info; |
struct bfd_link_order *link_order, |
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struct bfd_link_order * link_order; |
arelent *reloc, |
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arelent * reloc; |
bfd_byte *data, |
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bfd_byte * data; |
unsigned int *src_ptr, |
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unsigned int * src_ptr; |
unsigned int *dst_ptr) |
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unsigned int * dst_ptr; |
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{ |
{ |
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asection * input_section = link_order->u.indirect.section; |
asection * input_section = link_order->u.indirect.section; |
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{ |
{ |
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bfd_vma dst = bfd_coff_reloc16_get_value (reloc, link_info, |
bfd_vma dst = bfd_coff_reloc16_get_value (reloc, link_info, |
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input_section); |
input_section); |
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/* Adresses are 23 bit, and the layout of those in a 32-bit |
/* Addresses are 23 bit, and the layout of those in a 32-bit |
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value is as follows: |
value is as follows: |
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1AAAAAAA xxxxxxxx AAAAAAAA AAAAAAAA |
1AAAAAAA xxxxxxxx AAAAAAAA AAAAAAAA |
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(A - address bits, x - ignore). */ |
(A - address bits, x - ignore). */ |
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if (gap > 128 || gap < -128) |
if (gap > 128 || gap < -128) |
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{ |
{ |
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if (! ((*link_info->callbacks->reloc_overflow) |
if (! ((*link_info->callbacks->reloc_overflow) |
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(link_info, bfd_asymbol_name (*reloc->sym_ptr_ptr), |
(link_info, NULL, |
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bfd_asymbol_name (*reloc->sym_ptr_ptr), |
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reloc->howto->name, reloc->addend, input_section->owner, |
reloc->howto->name, reloc->addend, input_section->owner, |
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input_section, reloc->address))) |
input_section, reloc->address))) |
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abort (); |
abort (); |
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abort (); |
abort (); |
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gap /= 2; |
gap /= 2; |
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if (gap > 0 || gap < -128) |
if (gap > 0 || gap < -127) |
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{ |
{ |
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if (! ((*link_info->callbacks->reloc_overflow) |
if (! ((*link_info->callbacks->reloc_overflow) |
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(link_info, bfd_asymbol_name (*reloc->sym_ptr_ptr), |
(link_info, NULL, |
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bfd_asymbol_name (*reloc->sym_ptr_ptr), |
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reloc->howto->name, reloc->addend, input_section->owner, |
reloc->howto->name, reloc->addend, input_section->owner, |
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input_section, reloc->address))) |
input_section, reloc->address))) |
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abort (); |
abort (); |
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if (gap & 1) |
if (gap & 1) |
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abort (); |
abort (); |
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gap /= 2; |
if (gap > 4096 || gap < -4095) |
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if (gap > 8191 || gap < -8192) |
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{ |
{ |
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if (! ((*link_info->callbacks->reloc_overflow) |
if (! ((*link_info->callbacks->reloc_overflow) |
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(link_info, bfd_asymbol_name (*reloc->sym_ptr_ptr), |
(link_info, NULL, |
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bfd_asymbol_name (*reloc->sym_ptr_ptr), |
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reloc->howto->name, reloc->addend, input_section->owner, |
reloc->howto->name, reloc->addend, input_section->owner, |
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input_section, reloc->address))) |
input_section, reloc->address))) |
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abort (); |
abort (); |
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} |
} |
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gap /= 2; |
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bfd_put_16 (in_abfd, |
bfd_put_16 (in_abfd, |
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(bfd_get_16 ( in_abfd, data + *dst_ptr) & 0xf000) | (-gap & 0x0fff), |
(bfd_get_16 ( in_abfd, data + *dst_ptr) & 0xf000) | (-gap & 0x0fff), |
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data + *dst_ptr); |
data + *dst_ptr); |
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if (gap > 32767 || gap < -32768) |
if (gap > 32767 || gap < -32768) |
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{ |
{ |
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if (! ((*link_info->callbacks->reloc_overflow) |
if (! ((*link_info->callbacks->reloc_overflow) |
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(link_info, bfd_asymbol_name (*reloc->sym_ptr_ptr), |
(link_info, NULL, |
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bfd_asymbol_name (*reloc->sym_ptr_ptr), |
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reloc->howto->name, reloc->addend, input_section->owner, |
reloc->howto->name, reloc->addend, input_section->owner, |
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input_section, reloc->address))) |
input_section, reloc->address))) |
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abort (); |
abort (); |
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bfd_coff_reloc16_get_relocated_section_contents |
bfd_coff_reloc16_get_relocated_section_contents |
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#define coff_bfd_relax_section bfd_coff_reloc16_relax_section |
#define coff_bfd_relax_section bfd_coff_reloc16_relax_section |
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CREATE_BIG_COFF_TARGET_VEC (z8kcoff_vec, "coff-z8k", 0, 0, '_', NULL) |
CREATE_BIG_COFF_TARGET_VEC (z8kcoff_vec, "coff-z8k", 0, 0, '_', NULL, COFF_SWAP_TABLE) |