mirrors/binutils-gdb
0
0
Fork 0
mirror of https://sourceware.org/git/binutils-gdb.git synced 2024-11-27 12:03:41 +08:00
Code Issues Actions Packages Projects Releases Wiki Activity
fcef6471ed
binutils-gdb/bfd/elf32-z80.c
Alan Modra 0a1b45a20e Use bool in bfd 
* sysdep.h: POISON_BFD_BOOLEAN: Define.
	* aix5ppc-core.c, * aout-cris.c, * aout-ns32k.c, * aout-target.h,
	* aoutx.h, * arc-got.h, * archive.c, * archive64.c, * archures.c,
	* bfd-in.h, * bfd.c, * bfdwin.c, * binary.c, * cache.c,
	* coff-alpha.c, * coff-arm.c, * coff-arm.h, * coff-bfd.c,
	* coff-bfd.h, * coff-go32.c, * coff-i386.c, * coff-ia64.c,
	* coff-mcore.c, * coff-mips.c, * coff-rs6000.c, * coff-sh.c,
	* coff-stgo32.c, * coff-tic30.c, * coff-tic4x.c, * coff-tic54x.c,
	* coff-x86_64.c, * coff-z80.c, * coff-z8k.c, * coff64-rs6000.c,
	* coffcode.h, * coffgen.c, * cofflink.c, * compress.c,
	* corefile.c, * cpu-aarch64.c, * cpu-aarch64.h, * cpu-alpha.c,
	* cpu-arc.c, * cpu-arm.c, * cpu-arm.h, * cpu-avr.c, * cpu-bfin.c,
	* cpu-bpf.c, * cpu-cr16.c, * cpu-cris.c, * cpu-crx.c,
	* cpu-csky.c, * cpu-d10v.c, * cpu-d30v.c, * cpu-dlx.c,
	* cpu-epiphany.c, * cpu-fr30.c, * cpu-frv.c, * cpu-ft32.c,
	* cpu-h8300.c, * cpu-hppa.c, * cpu-i386.c, * cpu-ia64.c,
	* cpu-iamcu.c, * cpu-ip2k.c, * cpu-iq2000.c, * cpu-k1om.c,
	* cpu-l1om.c, * cpu-lm32.c, * cpu-m10200.c, * cpu-m10300.c,
	* cpu-m32c.c, * cpu-m32r.c, * cpu-m68hc11.c, * cpu-m68hc12.c,
	* cpu-m68k.c, * cpu-m9s12x.c, * cpu-m9s12xg.c, * cpu-mcore.c,
	* cpu-mep.c, * cpu-metag.c, * cpu-microblaze.c, * cpu-mips.c,
	* cpu-mmix.c, * cpu-moxie.c, * cpu-msp430.c, * cpu-mt.c,
	* cpu-nds32.c, * cpu-nfp.c, * cpu-nios2.c, * cpu-ns32k.c,
	* cpu-or1k.c, * cpu-pdp11.c, * cpu-pj.c, * cpu-powerpc.c,
	* cpu-pru.c, * cpu-riscv.c, * cpu-rl78.c, * cpu-rs6000.c,
	* cpu-rx.c, * cpu-s12z.c, * cpu-s390.c, * cpu-score.c,
	* cpu-sh.c, * cpu-sparc.c, * cpu-spu.c, * cpu-tic30.c,
	* cpu-tic4x.c, * cpu-tic54x.c, * cpu-tic6x.c, * cpu-tilegx.c,
	* cpu-tilepro.c, * cpu-v850.c, * cpu-v850_rh850.c, * cpu-vax.c,
	* cpu-visium.c, * cpu-wasm32.c, * cpu-xc16x.c, * cpu-xgate.c,
	* cpu-xstormy16.c, * cpu-xtensa.c, * cpu-z80.c, * cpu-z8k.c,
	* dwarf1.c, * dwarf2.c, * ecoff-bfd.h, * ecoff.c, * ecofflink.c,
	* elf-attrs.c, * elf-bfd.h, * elf-eh-frame.c, * elf-hppa.h,
	* elf-ifunc.c, * elf-m10200.c, * elf-m10300.c, * elf-nacl.c,
	* elf-nacl.h, * elf-properties.c, * elf-s390-common.c,
	* elf-s390.h, * elf-strtab.c, * elf-vxworks.c, * elf-vxworks.h,
	* elf.c, * elf32-am33lin.c, * elf32-arc.c, * elf32-arm.c,
	* elf32-arm.h, * elf32-avr.c, * elf32-avr.h, * elf32-bfin.c,
	* elf32-bfin.h, * elf32-cr16.c, * elf32-cr16.h, * elf32-cris.c,
	* elf32-crx.c, * elf32-csky.c, * elf32-csky.h, * elf32-d10v.c,
	* elf32-d30v.c, * elf32-dlx.c, * elf32-epiphany.c,
	* elf32-fr30.c, * elf32-frv.c, * elf32-ft32.c, * elf32-gen.c,
	* elf32-h8300.c, * elf32-hppa.c, * elf32-hppa.h, * elf32-i386.c,
	* elf32-ip2k.c, * elf32-iq2000.c, * elf32-lm32.c, * elf32-m32c.c,
	* elf32-m32r.c, * elf32-m68hc11.c, * elf32-m68hc12.c,
	* elf32-m68hc1x.c, * elf32-m68hc1x.h, * elf32-m68k.c,
	* elf32-m68k.h, * elf32-mcore.c, * elf32-mep.c, * elf32-metag.c,
	* elf32-metag.h, * elf32-microblaze.c, * elf32-mips.c,
	* elf32-moxie.c, * elf32-msp430.c, * elf32-mt.c, * elf32-nds32.c,
	* elf32-nios2.c, * elf32-nios2.h, * elf32-or1k.c, * elf32-pj.c,
	* elf32-ppc.c, * elf32-ppc.h, * elf32-pru.c, * elf32-rl78.c,
	* elf32-rx.c, * elf32-s12z.c, * elf32-s390.c, * elf32-score.c,
	* elf32-score.h, * elf32-score7.c, * elf32-sh-relocs.h,
	* elf32-sh.c, * elf32-sparc.c, * elf32-spu.c, * elf32-spu.h,
	* elf32-tic6x.c, * elf32-tic6x.h, * elf32-tilegx.c,
	* elf32-tilepro.c, * elf32-v850.c, * elf32-v850.h,
	* elf32-vax.c, * elf32-visium.c, * elf32-wasm32.c,
	* elf32-xc16x.c, * elf32-xgate.c, * elf32-xstormy16.c,
	* elf32-xtensa.c, * elf32-z80.c, * elf64-alpha.c, * elf64-bpf.c,
	* elf64-gen.c, * elf64-hppa.c, * elf64-ia64-vms.c,
	* elf64-mips.c, * elf64-mmix.c, * elf64-nfp.c, * elf64-ppc.c,
	* elf64-ppc.h, * elf64-s390.c, * elf64-sparc.c,
	* elf64-tilegx.c, * elf64-x86-64.c, * elfcode.h,
	* elfcore.h, * elflink.c, * elfn32-mips.c, * elfnn-aarch64.c,
	* elfnn-ia64.c, * elfnn-riscv.c, * elfxx-aarch64.c,
	* elfxx-aarch64.h, * elfxx-ia64.c, * elfxx-ia64.h,
	* elfxx-mips.c, * elfxx-mips.h, * elfxx-riscv.c, * elfxx-riscv.h,
	* elfxx-sparc.c, * elfxx-sparc.h, * elfxx-target.h,
	* elfxx-tilegx.c, * elfxx-tilegx.h, * elfxx-x86.c, * elfxx-x86.h,
	* format.c, * genlink.h, * hash.c, * i386aout.c, * i386lynx.c,
	* i386msdos.c, * ihex.c, * libaout.h, * libbfd-in.h,
	* libbfd.c, * libcoff-in.h, * libecoff.h, * libpei.h,
	* libxcoff.h, * linker.c, * mach-o-aarch64.c, * mach-o-arm.c,
	* mach-o-i386.c, * mach-o-x86-64.c, * mach-o.c, * mach-o.h,
	* merge.c, * mmo.c, * netbsd.h, * opncls.c, * pc532-mach.c,
	* pdp11.c, * pe-arm.c, * pe-i386.c, * pe-mcore.c, * pe-sh.c,
	* pe-x86_64.c, * peXXigen.c, * pef.c, * pei-arm.c, * pei-i386.c,
	* pei-ia64.c, * pei-mcore.c, * pei-sh.c, * pei-x86_64.c,
	* peicode.h, * plugin.c, * plugin.h, * ppcboot.c, * reloc.c,
	* reloc16.c, * rs6000-core.c, * section.c, * simple.c, * som.c,
	* som.h, * srec.c, * stabs.c, * syms.c, * targets.c, * tekhex.c,
	* verilog.c, * vms-alpha.c, * vms-lib.c, * vms-misc.c, * vms.h,
	* wasm-module.c, * xcofflink.c, * xcofflink.h, * xsym.c,
	* xsym.h: Replace bfd_boolean with bool, FALSE with false, and
	TRUE with true throughout.
	* bfd-in2.h: Regenerate.
	* libbfd.h: Regenerate.
	* libcoff.h: Regenerate.
2021-03-31 10:49:23 +10:30

633 lines
18 KiB
C
Raw Blame History

/* Zilog (e)Z80-specific support for 32-bit ELF
Copyright (C) 1999-2021 Free Software Foundation, Inc.
(Heavily copied from the S12Z port by Sergey Belyashov (sergey.belyashov@gmail.com))
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 3 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., 51 Franklin Street - Fifth Floor, Boston,
MA 02110-1301, USA. */
#include "sysdep.h"
#include "bfd.h"
#include "bfdlink.h"
#include "libbfd.h"
#include "elf-bfd.h"
#include "elf/z80.h"
/* All users of this file have bfd_octets_per_byte (abfd, sec) == 1. */
#define OCTETS_PER_BYTE(ABFD, SEC) 1
typedef const struct {
bfd_reloc_code_real_type r_type;
reloc_howto_type howto;
} bfd_howto_type;
#define BFD_EMPTY_HOWTO(rt,x) {rt, EMPTY_HOWTO(x)}
#define BFD_HOWTO(rt,a,b,c,d,e,f,g,h,i,j,k,l,m) {rt, HOWTO(a,b,c,d,e,f,g,h,i,j,k,l,m)}
static bfd_reloc_status_type
z80_elf_16_be_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
void *data, asection *input_section, bfd *output_bfd,
char **error_message);
static const
bfd_howto_type elf_z80_howto_table[] =
{
/* This reloc does nothing. */
BFD_HOWTO (BFD_RELOC_NONE,
R_Z80_NONE, /* type */
0, /* rightshift */
3, /* size (0 = byte, 1 = short, 2 = long) */
0, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_dont,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_NONE", /* name */
false, /* partial_inplace */
0, /* src_mask */
0, /* dst_mask */
false), /* pcrel_offset */
/* A 8 bit relocation */
BFD_HOWTO (BFD_RELOC_8,
R_Z80_8, /* type */
0, /* rightshift */
0, /* size (0 = byte, 1 = short, 2 = long) */
8, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"r_imm8", /* name */
false, /* partial_inplace */
0x00, /* src_mask */
0xff, /* dst_mask */
false), /* pcrel_offset */
/* A 8 bit index register displacement relocation */
BFD_HOWTO (BFD_RELOC_Z80_DISP8,
R_Z80_8_DIS, /* type */
0, /* rightshift */
0, /* size (0 = byte, 1 = short, 2 = long) */
8, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"r_off", /* name */
false, /* partial_inplace */
0x00, /* src_mask */
0xff, /* dst_mask */
false), /* pcrel_offset */
/* A 8 bit PC-rel relocation */
BFD_HOWTO (BFD_RELOC_8_PCREL,
R_Z80_8_PCREL, /* type */
0, /* rightshift */
0, /* size (0 = byte, 1 = short, 2 = long) */
8, /* bitsize */
true, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"r_jr", /* name */
false, /* partial_inplace */
0x00, /* src_mask */
0xff, /* dst_mask */
true), /* pcrel_offset */
/* An 16 bit absolute relocation */
BFD_HOWTO (BFD_RELOC_16,
R_Z80_16, /* 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_imm16", /* name */
false, /* partial_inplace */
0x00000000, /* src_mask */
0x0000ffff, /* dst_mask */
false), /* pcrel_offset */
/* A 24 bit absolute relocation emitted by ADL mode operands */
BFD_HOWTO (BFD_RELOC_24,
R_Z80_24, /* type */
0, /* rightshift */
5, /* size (0 = byte, 1 = short, 2 = long) */
24, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"r_imm24", /* name */
false, /* partial_inplace */
0x00000000, /* src_mask */
0x00ffffff, /* dst_mask */
false), /* pcrel_offset */
BFD_HOWTO (BFD_RELOC_32,
R_Z80_32, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_dont,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"r_imm32", /* name */
false, /* partial_inplace */
0x00000000, /* src_mask */
0xffffffff, /* dst_mask */
false), /* pcrel_offset */
/* First (lowest) 8 bits of multibyte relocation */
BFD_HOWTO (BFD_RELOC_Z80_BYTE0,
R_Z80_BYTE0, /* type */
0, /* rightshift */
0, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_dont,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"r_byte0", /* name */
false, /* partial_inplace */
0, /* src_mask */
0xff, /* dst_mask */
false), /* pcrel_offset */
/* Second 8 bits of multibyte relocation */
BFD_HOWTO (BFD_RELOC_Z80_BYTE1,
R_Z80_BYTE1, /* type */
8, /* rightshift */
0, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_dont,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"r_byte1", /* name */
false, /* partial_inplace */
0, /* src_mask */
0xff, /* dst_mask */
false), /* pcrel_offset */
/* Third 8 bits of multibyte relocation */
BFD_HOWTO (BFD_RELOC_Z80_BYTE2,
R_Z80_BYTE2, /* type */
16, /* rightshift */
0, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_dont,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"r_byte2", /* name */
false, /* partial_inplace */
0, /* src_mask */
0xff, /* dst_mask */
false), /* pcrel_offset */
/* Fourth (highest) 8 bits of multibyte relocation */
BFD_HOWTO (BFD_RELOC_Z80_BYTE3,
R_Z80_BYTE3, /* type */
24, /* rightshift */
0, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_dont,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"r_byte3", /* name */
false, /* partial_inplace */
0, /* src_mask */
0xff, /* dst_mask */
false), /* pcrel_offset */
/* An 16 bit absolute relocation of lower word of multibyte value */
BFD_HOWTO (BFD_RELOC_Z80_WORD0,
R_Z80_WORD0, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_dont,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"r_word0", /* name */
false, /* partial_inplace */
0, /* src_mask */
0xffff, /* dst_mask */
false), /* pcrel_offset */
/* An 16 bit absolute relocation of higher word of multibyte value */
BFD_HOWTO (BFD_RELOC_Z80_WORD1,
R_Z80_WORD1, /* type */
16, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_dont,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"r_word1", /* name */
false, /* partial_inplace */
0, /* src_mask */
0xffff, /* dst_mask */
false), /* pcrel_offset */
/* An 16 bit big endian absolute relocation */
BFD_HOWTO (BFD_RELOC_Z80_16_BE,
R_Z80_16_BE, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
z80_elf_16_be_reloc, /* special_function */
"r_imm16be", /* name */
false, /* partial_inplace */
0x00000000, /* src_mask */
0x0000ffff, /* dst_mask */
false), /* pcrel_offset */
};
static reloc_howto_type *
z80_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
bfd_reloc_code_real_type code)
{
enum
{
table_size = sizeof (elf_z80_howto_table) / sizeof (elf_z80_howto_table[0])
};
unsigned int i;
for (i = 0; i < table_size; i++)
{
if (elf_z80_howto_table[i].r_type == code)
return &elf_z80_howto_table[i].howto;
}
printf ("%s:%d Not found BFD reloc type %d\n", __FILE__, __LINE__, code);
return NULL;
}
static reloc_howto_type *
z80_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, const char *r_name)
{
enum
{
table_size = sizeof (elf_z80_howto_table) / sizeof (elf_z80_howto_table[0])
};
unsigned int i;
for (i = 0; i < table_size; i++)
{
if (elf_z80_howto_table[i].howto.name != NULL
&& strcasecmp (elf_z80_howto_table[i].howto.name, r_name) == 0)
return &elf_z80_howto_table[i].howto;
}
printf ("%s:%d Not found ELF reloc name `%s'\n", __FILE__, __LINE__, r_name);
return NULL;
}
static reloc_howto_type *
z80_rtype_to_howto (bfd *abfd, unsigned r_type)
{
enum
{
table_size = sizeof (elf_z80_howto_table) / sizeof (elf_z80_howto_table[0])
};
unsigned int i;
for (i = 0; i < table_size; i++)
{
if (elf_z80_howto_table[i].howto.type == r_type)
return &elf_z80_howto_table[i].howto;
}
/* xgettext:c-format */
_bfd_error_handler (_("%pB: unsupported relocation type %#x"),
abfd, r_type);
return NULL;
}
/* Set the howto pointer for an z80 ELF reloc. */
static bool
z80_info_to_howto_rela (bfd *abfd, arelent *cache_ptr, Elf_Internal_Rela *dst)
{
unsigned int r_type = ELF32_R_TYPE (dst->r_info);
reloc_howto_type *howto = z80_rtype_to_howto (abfd, r_type);
if (howto != NULL)
{
cache_ptr->howto = howto;
return true;
}
bfd_set_error (bfd_error_bad_value);
return false;
}
static bfd_reloc_status_type
z80_elf_final_link_relocate (unsigned long r_type,
bfd *input_bfd,
bfd *output_bfd ATTRIBUTE_UNUSED,
asection *input_section ATTRIBUTE_UNUSED,
bfd_byte *contents,
bfd_vma offset,
bfd_vma value,
bfd_vma addend,
struct bfd_link_info *info ATTRIBUTE_UNUSED,
asection *sym_sec ATTRIBUTE_UNUSED,
int is_local ATTRIBUTE_UNUSED)
{
bool r;
reloc_howto_type *howto;
switch (r_type)
{
case R_Z80_16_BE:
value += addend;
bfd_put_8 (input_bfd, value >> 8, contents + offset + 0);
bfd_put_8 (input_bfd, value >> 0, contents + offset + 1);
return bfd_reloc_ok;
}
howto = z80_rtype_to_howto (input_bfd, r_type);
if (howto == NULL)
return bfd_reloc_notsupported;
r = _bfd_final_link_relocate (howto, input_bfd, input_section, contents,
offset, value, addend);
return r ? bfd_reloc_ok : bfd_reloc_notsupported;
}
static int
z80_elf_relocate_section (bfd *output_bfd,
struct bfd_link_info *info,
bfd *input_bfd,
asection *input_section,
bfd_byte *contents,
Elf_Internal_Rela *relocs,
Elf_Internal_Sym *local_syms,
asection **local_sections)
{
Elf_Internal_Shdr *symtab_hdr;
struct elf_link_hash_entry **sym_hashes;
Elf_Internal_Rela *rel, *relend;
symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
sym_hashes = elf_sym_hashes (input_bfd);
rel = relocs;
relend = relocs + input_section->reloc_count;
for (; rel < relend; rel++)
{
unsigned int r_type;
unsigned long r_symndx;
Elf_Internal_Sym *sym;
asection *sec;
struct elf_link_hash_entry *h;
bfd_vma relocation;
/* This is a final link. */
r_symndx = ELF32_R_SYM (rel->r_info);
r_type = ELF32_R_TYPE (rel->r_info);
h = NULL;
sym = NULL;
sec = NULL;
if (r_symndx < symtab_hdr->sh_info)
{
sym = local_syms + r_symndx;
sec = local_sections[r_symndx];
relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
}
else
{
bool unresolved_reloc, warned, ignored;
RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
r_symndx, symtab_hdr, sym_hashes,
h, sec, relocation,
unresolved_reloc, warned, ignored);
}
if (sec != NULL && discarded_section (sec))
{
/* For relocs against symbols from removed linkonce sections,
or sections discarded by a linker script, we just want the
section contents cleared. Avoid any special processing. */
reloc_howto_type *howto;
howto = z80_rtype_to_howto (input_bfd, r_type);
RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
rel, 1, relend, howto, 0, contents);
}
if (bfd_link_relocatable (info))
continue;
z80_elf_final_link_relocate (r_type, input_bfd, output_bfd,
input_section,
contents, rel->r_offset,
relocation, rel->r_addend,
info, sec, h == NULL);
}
return true;
}
/* The final processing done just before writing out a Z80 ELF object
file. This gets the Z80 architecture right based on the machine
number. */
static bool
z80_elf_final_write_processing (bfd *abfd)
{
unsigned long val = bfd_get_mach (abfd);
switch (val)
{
default:
_bfd_error_handler (_("%pB: unsupported bfd mach %#lx"),
abfd, val);
/* fall through */
case bfd_mach_z80:
case bfd_mach_z80full:
case bfd_mach_z80strict:
val = EF_Z80_MACH_Z80;
break;
case bfd_mach_gbz80:
val = EF_Z80_MACH_GBZ80;
break;
case bfd_mach_z80n:
val = EF_Z80_MACH_Z80N;
break;
case bfd_mach_z180:
val = EF_Z80_MACH_Z180;
break;
case bfd_mach_ez80_z80:
val = EF_Z80_MACH_EZ80_Z80;
break;
case bfd_mach_ez80_adl:
val = EF_Z80_MACH_EZ80_ADL;
break;
case bfd_mach_r800:
val = EF_Z80_MACH_R800;
break;
}
elf_elfheader (abfd)->e_machine = EM_Z80;
elf_elfheader (abfd)->e_flags &= ~EF_Z80_MACH_MSK;
elf_elfheader (abfd)->e_flags |= val;
return _bfd_elf_final_write_processing (abfd);
}
/* Set the right machine number. */
static bool
z80_elf_object_p (bfd *abfd)
{
unsigned int mach;
if (elf_elfheader (abfd)->e_machine == EM_Z80)
{
int e_mach = elf_elfheader (abfd)->e_flags & EF_Z80_MACH_MSK;
switch (e_mach)
{
default:
_bfd_error_handler (_("%pB: unsupported mach %#x"),
abfd, e_mach);
/* fall through */
case EF_Z80_MACH_Z80:
mach = bfd_mach_z80;
break;
case EF_Z80_MACH_GBZ80:
mach = bfd_mach_gbz80;
break;
case EF_Z80_MACH_Z180:
mach = bfd_mach_z180;
break;
case EF_Z80_MACH_EZ80_Z80:
mach = bfd_mach_ez80_z80;
break;
case EF_Z80_MACH_EZ80_ADL:
mach = bfd_mach_ez80_adl;
break;
case EF_Z80_MACH_R800:
mach = bfd_mach_r800;
break;
case EF_Z80_MACH_Z80N:
mach = bfd_mach_z80n;
break;
}
}
else
{
_bfd_error_handler (_("%pB: unsupported arch %#x"),
abfd, elf_elfheader (abfd)->e_machine);
mach = bfd_mach_z80;
}
return bfd_default_set_arch_mach (abfd, bfd_arch_z80, mach);
}
static bool
z80_is_local_label_name (bfd * abfd ATTRIBUTE_UNUSED,
const char * name)
{
return (name[0] == '.' && name[1] == 'L') ||
_bfd_elf_is_local_label_name (abfd, name);
}
static bfd_reloc_status_type
z80_elf_16_be_reloc (bfd *abfd,
arelent *reloc_entry,
asymbol *symbol,
void *data,
asection *input_section,
bfd *output_bfd,
char **error_message)
{
bfd_vma val;
long x;
bfd_size_type octets = (reloc_entry->address
* OCTETS_PER_BYTE (abfd, input_section));
/* If this is a relocatable link (output_bfd test tells us), just
call the generic function. Any adjustment will be done at final
link time. */
if (output_bfd != NULL)
return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
input_section, output_bfd, error_message);
/* Get symbol value. */
val = 0;
if (!bfd_is_com_section (symbol->section))
val = symbol->value;
val += symbol->section->output_offset + input_section->output_offset;
if (symbol->section->output_section)
val += symbol->section->output_section->vma;
val += reloc_entry->addend;
if (reloc_entry->howto->partial_inplace)
{
x = bfd_get_8 (abfd, (bfd_byte *) data + octets + 0) * 0x100;
x += bfd_get_8 (abfd, (bfd_byte *) data + octets + 1);
x &= ~reloc_entry->howto->src_mask;
}
else
x = 0;
x |= val & reloc_entry->howto->dst_mask;
if (x < -0x8000 || x >= 0x10000)
return bfd_reloc_outofrange;
bfd_put_8 (abfd, x >> 8, (bfd_byte *) data + octets + 0);
bfd_put_8 (abfd, x >> 0, (bfd_byte *) data + octets + 1);
return bfd_reloc_ok;
}
#define ELF_ARCH bfd_arch_z80
#define ELF_MACHINE_CODE EM_Z80
#define ELF_MAXPAGESIZE 0x10000
#define TARGET_LITTLE_SYM z80_elf32_vec
#define TARGET_LITTLE_NAME "elf32-z80"
#define elf_backend_can_refcount 1
#define elf_backend_can_gc_sections 1
#define elf_backend_stack_align 1
#define elf_backend_rela_normal 1
#define elf_info_to_howto z80_info_to_howto_rela
#define elf_info_to_howto_rel z80_info_to_howto_rela
#define elf_backend_final_write_processing z80_elf_final_write_processing
#define elf_backend_object_p z80_elf_object_p
#define elf_backend_relocate_section z80_elf_relocate_section
#define bfd_elf32_bfd_reloc_type_lookup z80_reloc_type_lookup
#define bfd_elf32_bfd_reloc_name_lookup z80_reloc_name_lookup
#define bfd_elf32_bfd_is_local_label_name z80_is_local_label_name
#include "elf32-target.h"
Reference in New Issue View Git Blame Copy Permalink