-/* Zilog Z800n COFF back-end for BFD.
- Copyright (C) 1992 Free Software Foundation, Inc.
- Written by Steve Chamberlain
- sac@cygnus.com
+/* BFD back-end for Zilog Z800n COFF binaries.
+ Copyright (C) 1992-2021 Free Software Foundation, Inc.
+ Contributed by Cygnus Support.
+ Written by Steve Chamberlain, <sac@cygnus.com>.
-This file is part of BFD, the Binary File Descriptor library.
+ 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 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.
+ 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. */
+ 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 "bfd.h"
#include "sysdep.h"
+#include "bfd.h"
#include "libbfd.h"
-#include "obstack.h"
+#include "bfdlink.h"
#include "coff/z8k.h"
#include "coff/internal.h"
#include "libcoff.h"
-#include "seclet.h"
-
-extern bfd_error_vector_type bfd_error_vector;
-
-/* Dummy for now */
-static bfd_reloc_status_type
-DEFUN(func_da, (abfd, reloc_entry, symbol, data, input_section, output_bfd),
- bfd *abfd AND
- arelent *reloc_entry AND
- struct symbol_cache_entry *symbol AND
- PTR data AND
- asection *input_section AND
- bfd *output_bfd)
-{
-}
-
-/* Dummy for now */
-static bfd_reloc_status_type
-DEFUN(func_jr, (abfd, reloc_entry, symbol, data, input_section, output_bfd),
- bfd *abfd AND
- arelent *reloc_entry AND
- struct symbol_cache_entry *symbol AND
- PTR data AND
- asection *input_section AND
- bfd *output_bfd)
-{
-}
-static reloc_howto_type r_da =
- HOWTO(R_DA , 0, 1, 16, false, 0, true,
-true,func_da,"r_da", true, 0x0000ffff,0x0000ffff, false);
+#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (1)
-static reloc_howto_type r_jr =
- HOWTO(R_JR, 0,1,8,true,0,true,true,func_jr,"r_jr", true,0,0,true);
+static reloc_howto_type r_imm32 =
+HOWTO (R_IMM32, 0, 2, 32, FALSE, 0,
+ complain_overflow_bitfield, 0, "r_imm32", TRUE, 0xffffffff,
+ 0xffffffff, FALSE);
+static reloc_howto_type r_imm4l =
+HOWTO (R_IMM4L, 0, 0, 4, FALSE, 0,
+ complain_overflow_bitfield, 0, "r_imm4l", TRUE, 0xf, 0xf, FALSE);
+static reloc_howto_type r_da =
+HOWTO (R_IMM16, 0, 1, 16, FALSE, 0,
+ complain_overflow_bitfield, 0, "r_da", TRUE, 0x0000ffff, 0x0000ffff,
+ FALSE);
+static reloc_howto_type r_imm8 =
+HOWTO (R_IMM8, 0, 0, 8, FALSE, 0,
+ complain_overflow_bitfield, 0, "r_imm8", TRUE, 0x000000ff, 0x000000ff,
+ FALSE);
+static reloc_howto_type r_rel16 =
+HOWTO (R_REL16, 0, 1, 16, FALSE, 0,
+ complain_overflow_bitfield, 0, "r_rel16", TRUE, 0x0000ffff, 0x0000ffff,
+ TRUE);
-/* Turn a howto into a reloc number */
+static reloc_howto_type r_jr =
+HOWTO (R_JR, 1, 0, 8, TRUE, 0, complain_overflow_signed, 0,
+ "r_jr", TRUE, 0xff, 0xff, TRUE);
-static int coff_z8k_select_reloc(howto)
-reloc_howto_type *howto;
-{
-return howto->type;
-}
-#define SELECT_RELOC(x,howto) x= coff_z8k_select_reloc(howto)
+static reloc_howto_type r_disp7 =
+HOWTO (R_DISP7, 0, 0, 7, TRUE, 0, complain_overflow_bitfield, 0,
+ "r_disp7", TRUE, 0x7f, 0x7f, TRUE);
+static reloc_howto_type r_callr =
+HOWTO (R_CALLR, 1, 1, 12, TRUE, 0, complain_overflow_signed, 0,
+ "r_callr", TRUE, 0xfff, 0xfff, TRUE);
#define BADMAG(x) Z8KBADMAG(x)
-#define Z8K 1 /* Customize coffcode.h */
+#define Z8K 1 /* Customize coffcode.h. */
#define __A_MAGIC_SET__
-
-
-/* Code to swap in the reloc */
-#define SWAP_IN_RELOC_OFFSET bfd_h_get_32
-#define SWAP_OUT_RELOC_OFFSET bfd_h_put_32
+/* Code to swap in the reloc. */
+#define SWAP_IN_RELOC_OFFSET H_GET_32
+#define SWAP_OUT_RELOC_OFFSET H_PUT_32
#define SWAP_OUT_RELOC_EXTRA(abfd, src, dst) \
dst->r_stuff[0] = 'S'; \
- dst->r_stuff[1] = 'C';
+ dst->r_stuff[1] = 'C';
-/* 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. */
-static void
-DEFUN(rtype2howto,(internal, dst),
-arelent *internal AND
-struct internal_reloc *dst)
+static void
+rtype2howto (arelent *internal, struct internal_reloc *dst)
{
- switch (dst->r_type) {
- default:
- printf("BAD %x\n", dst->r_type);
- case R_DA:
- internal->howto = &r_da;
- break;
- case R_JR:
- internal->howto = &r_jr;
+ switch (dst->r_type)
+ {
+ default:
+ internal->howto = NULL;
+ break;
+ case R_IMM8:
+ internal->howto = &r_imm8;
+ break;
+ case R_IMM16:
+ internal->howto = &r_da;
+ break;
+ case R_JR:
+ internal->howto = &r_jr;
+ break;
+ case R_DISP7:
+ internal->howto = &r_disp7;
+ break;
+ case R_CALLR:
+ internal->howto = &r_callr;
+ break;
+ case R_REL16:
+ internal->howto = &r_rel16;
+ break;
+ case R_IMM32:
+ internal->howto = &r_imm32;
+ break;
+ case R_IMM4L:
+ internal->howto = &r_imm4l;
+ break;
}
}
-#define RTYPE2HOWTO(internal, relocentry) rtype2howto(internal,relocentry)
+#define RTYPE2HOWTO(internal, relocentry) rtype2howto (internal, relocentry)
+static reloc_howto_type *
+coff_z8k_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
+ bfd_reloc_code_real_type code)
+{
+ switch (code)
+ {
+ case BFD_RELOC_8: return & r_imm8;
+ case BFD_RELOC_16: return & r_da;
+ case BFD_RELOC_32: return & r_imm32;
+ case BFD_RELOC_8_PCREL: return & r_jr;
+ case BFD_RELOC_16_PCREL: return & r_rel16;
+ case BFD_RELOC_Z8K_DISP7: return & r_disp7;
+ case BFD_RELOC_Z8K_CALLR: return & r_callr;
+ case BFD_RELOC_Z8K_IMM4L: return & r_imm4l;
+ default: BFD_FAIL ();
+ return 0;
+ }
+}
-/* Perform any necessaru magic to the addend in a reloc entry */
+static reloc_howto_type *
+coff_z8k_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
+ const char *r_name)
+{
+ if (strcasecmp (r_imm8.name, r_name) == 0)
+ return &r_imm8;
+ if (strcasecmp (r_da.name, r_name) == 0)
+ return &r_da;
+ if (strcasecmp (r_imm32.name, r_name) == 0)
+ return &r_imm32;
+ if (strcasecmp (r_jr.name, r_name) == 0)
+ return &r_jr;
+ if (strcasecmp (r_rel16.name, r_name) == 0)
+ return &r_rel16;
+ if (strcasecmp (r_disp7.name, r_name) == 0)
+ return &r_disp7;
+ if (strcasecmp (r_callr.name, r_name) == 0)
+ return &r_callr;
+ if (strcasecmp (r_imm4l.name, r_name) == 0)
+ return &r_imm4l;
+
+ return NULL;
+}
+/* Perform any necessary magic to the addend in a reloc entry. */
#define CALC_ADDEND(abfd, symbol, ext_reloc, cache_ptr) \
cache_ptr->addend = ext_reloc.r_offset;
-
#define RELOC_PROCESSING(relent,reloc,symbols,abfd,section) \
reloc_processing(relent, reloc, symbols, abfd, section)
-static void DEFUN(reloc_processing,(relent,reloc, symbols, abfd, section) ,
- arelent *relent AND
- struct internal_reloc *reloc AND
- asymbol **symbols AND
- bfd *abfd AND
- asection *section)
+static void
+reloc_processing (arelent *relent,
+ struct internal_reloc *reloc,
+ asymbol **symbols,
+ bfd *abfd,
+ asection *section)
{
- relent->address = reloc->r_vaddr;
- rtype2howto(relent,reloc);
-
- if (reloc->r_symndx > 0)
- {
-
- relent->sym_ptr_ptr = symbols + obj_convert(abfd)[reloc->r_symndx];
-
- }
- else
- {
- relent->sym_ptr_ptr = &(bfd_abs_symbol);
- }
-
-
-
+ relent->address = reloc->r_vaddr;
+ rtype2howto (relent, reloc);
+
+ if (reloc->r_symndx > 0)
+ relent->sym_ptr_ptr = symbols + obj_convert (abfd)[reloc->r_symndx];
+ else
+ relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
+
relent->addend = reloc->r_offset;
-
- relent->address-= section->vma;
-/* relent->section = 0;*/
+ relent->address -= section->vma;
}
-static bfd_vma get_value();
-
static void
-extra_case(in_abfd, seclet, reloc, data, src_ptr, dst_ptr)
- bfd *in_abfd;
- bfd_seclet_type *seclet;
- arelent *reloc;
- bfd_byte *data;
- unsigned int *src_ptr;
- unsigned int *dst_ptr;
+extra_case (bfd *in_abfd,
+ struct bfd_link_info *link_info,
+ struct bfd_link_order *link_order,
+ arelent *reloc,
+ bfd_byte *data,
+ unsigned int *src_ptr,
+ unsigned int *dst_ptr)
{
- switch (reloc->howto->type)
- {
- case R_DA:
- bfd_put_16(in_abfd, get_value(reloc, seclet), data+*dst_ptr);
- (*dst_ptr)+=2;
- ( *src_ptr)+=2;
- break;
- case R_JR:
- {
- bfd_vma dst = get_value(reloc,seclet);
- bfd_vma dot = seclet->offset
- + *dst_ptr
- + seclet->u.indirect.section->output_section->vma;
- int gap = dst - dot - 1 ; /* -1 since were in the odd byte of the
- word */
- if (gap & 1)
- abort();
- gap/=2;
- if (gap > 128 || gap< -128)
- {
- bfd_error_vector.reloc_value_truncated(reloc, seclet);
- }
- bfd_put_8(in_abfd, gap, data+*dst_ptr);
- (*dst_ptr)++;
- (*src_ptr)++;
- break;
- }
- default:
- abort();
- }
+ asection * input_section = link_order->u.indirect.section;
+
+ switch (reloc->howto->type)
+ {
+ case R_IMM8:
+ bfd_put_8 (in_abfd,
+ bfd_coff_reloc16_get_value (reloc, link_info, input_section),
+ data + *dst_ptr);
+ (*dst_ptr) += 1;
+ (*src_ptr) += 1;
+ break;
+
+ case R_IMM32:
+ /* If no flags are set, assume immediate value. */
+ if (! (*reloc->sym_ptr_ptr)->section->flags)
+ {
+ bfd_put_32 (in_abfd,
+ bfd_coff_reloc16_get_value (reloc, link_info,
+ input_section),
+ data + *dst_ptr);
+ }
+ else
+ {
+ bfd_vma dst = bfd_coff_reloc16_get_value (reloc, link_info,
+ input_section);
+ /* Addresses are 23 bit, and the layout of those in a 32-bit
+ value is as follows:
+ 1AAAAAAA xxxxxxxx AAAAAAAA AAAAAAAA
+ (A - address bits, x - ignore). */
+ dst = (dst & 0xffff) | ((dst & 0xff0000) << 8) | 0x80000000;
+ bfd_put_32 (in_abfd, dst, data + *dst_ptr);
+ }
+ (*dst_ptr) += 4;
+ (*src_ptr) += 4;
+ break;
+
+ case R_IMM4L:
+ bfd_put_8 (in_abfd,
+ ((bfd_get_8 (in_abfd, data + *dst_ptr) & 0xf0)
+ | (0x0f
+ & bfd_coff_reloc16_get_value (reloc, link_info,
+ input_section))),
+ data + *dst_ptr);
+ (*dst_ptr) += 1;
+ (*src_ptr) += 1;
+ break;
+
+ case R_IMM16:
+ bfd_put_16 (in_abfd,
+ bfd_coff_reloc16_get_value (reloc, link_info, input_section),
+ data + *dst_ptr);
+ (*dst_ptr) += 2;
+ (*src_ptr) += 2;
+ break;
+
+ case R_JR:
+ {
+ bfd_vma dst = bfd_coff_reloc16_get_value (reloc, link_info,
+ input_section);
+ bfd_vma dot = (*dst_ptr
+ + input_section->output_offset
+ + input_section->output_section->vma);
+ int gap = dst - dot - 1; /* -1, since we're in the odd byte of the
+ word and the pc's been incremented. */
+
+ if (gap & 1)
+ abort ();
+ gap /= 2;
+ if (gap > 127 || gap < -128)
+ (*link_info->callbacks->reloc_overflow)
+ (link_info, NULL, bfd_asymbol_name (*reloc->sym_ptr_ptr),
+ reloc->howto->name, reloc->addend, input_section->owner,
+ input_section, reloc->address);
+
+ bfd_put_8 (in_abfd, gap, data + *dst_ptr);
+ (*dst_ptr)++;
+ (*src_ptr)++;
+ break;
+ }
+
+ case R_DISP7:
+ {
+ bfd_vma dst = bfd_coff_reloc16_get_value (reloc, link_info,
+ input_section);
+ bfd_vma dot = (*dst_ptr
+ + input_section->output_offset
+ + input_section->output_section->vma);
+ int gap = dst - dot - 1; /* -1, since we're in the odd byte of the
+ word and the pc's been incremented. */
+
+ if (gap & 1)
+ abort ();
+ gap /= 2;
+
+ if (gap > 0 || gap < -127)
+ (*link_info->callbacks->reloc_overflow)
+ (link_info, NULL, bfd_asymbol_name (*reloc->sym_ptr_ptr),
+ reloc->howto->name, reloc->addend, input_section->owner,
+ input_section, reloc->address);
+
+ bfd_put_8 (in_abfd,
+ (bfd_get_8 ( in_abfd, data + *dst_ptr) & 0x80) + (-gap & 0x7f),
+ data + *dst_ptr);
+ (*dst_ptr)++;
+ (*src_ptr)++;
+ break;
+ }
+
+ case R_CALLR:
+ {
+ bfd_vma dst = bfd_coff_reloc16_get_value (reloc, link_info,
+ input_section);
+ bfd_vma dot = (*dst_ptr
+ + input_section->output_offset
+ + input_section->output_section->vma);
+ int gap = dst - dot - 2;
+
+ if (gap & 1)
+ abort ();
+ if (gap > 4096 || gap < -4095)
+ (*link_info->callbacks->reloc_overflow)
+ (link_info, NULL, bfd_asymbol_name (*reloc->sym_ptr_ptr),
+ reloc->howto->name, reloc->addend, input_section->owner,
+ input_section, reloc->address);
+
+ gap /= 2;
+ bfd_put_16 (in_abfd,
+ (bfd_get_16 ( in_abfd, data + *dst_ptr) & 0xf000) | (-gap & 0x0fff),
+ data + *dst_ptr);
+ (*dst_ptr) += 2;
+ (*src_ptr) += 2;
+ break;
+ }
+
+ case R_REL16:
+ {
+ bfd_vma dst = bfd_coff_reloc16_get_value (reloc, link_info,
+ input_section);
+ bfd_vma dot = (*dst_ptr
+ + input_section->output_offset
+ + input_section->output_section->vma);
+ int gap = dst - dot - 2;
+
+ if (gap > 32767 || gap < -32768)
+ (*link_info->callbacks->reloc_overflow)
+ (link_info, NULL, bfd_asymbol_name (*reloc->sym_ptr_ptr),
+ reloc->howto->name, reloc->addend, input_section->owner,
+ input_section, reloc->address);
+
+ bfd_put_16 (in_abfd, (bfd_vma) gap, data + *dst_ptr);
+ (*dst_ptr) += 2;
+ (*src_ptr) += 2;
+ break;
+ }
+
+ default:
+ abort ();
+ }
}
-#define EXTRA_CASES default: extra_case(in_abfd,seclet,reloc, data, &src_address, &dst_address);
-
+#define coff_reloc16_extra_cases extra_case
+#define coff_bfd_reloc_type_lookup coff_z8k_reloc_type_lookup
+#define coff_bfd_reloc_name_lookup coff_z8k_reloc_name_lookup
+#ifndef bfd_pe_print_pdata
+#define bfd_pe_print_pdata NULL
+#endif
#include "coffcode.h"
+#undef coff_bfd_get_relocated_section_contents
+#define coff_bfd_get_relocated_section_contents \
+ bfd_coff_reloc16_get_relocated_section_contents
-#undef coff_bfd_get_relocated_section_contents
-#undef coff_bfd_relax_section
-#define coff_bfd_get_relocated_section_contents bfd_coff_get_relocated_section_contents
-#define coff_bfd_relax_section bfd_coff_relax_section
+#undef coff_bfd_relax_section
+#define coff_bfd_relax_section bfd_coff_reloc16_relax_section
-bfd_target z8kcoff_vec =
-{
- "coff-z8k", /* name */
- bfd_target_coff_flavour,
- true, /* data byte order is big */
- true, /* header byte order is big */
-
- (HAS_RELOC | EXEC_P | /* object flags */
- HAS_LINENO | HAS_DEBUG |
- HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT),
-
- ( SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
- '_', /* leading symbol underscore */
- '/', /* ar_pad_char */
- 15, /* ar_max_namelen */
- 1, /* minimum section alignment */
- _do_getb64, _do_putb64, _do_getb32, _do_putb32, _do_getb16, _do_putb16, /* data */
- _do_getb64, _do_putb64, _do_getb32, _do_putb32, _do_getb16, _do_putb16, /* hdrs */
-
- {_bfd_dummy_target, coff_object_p, /* bfd_check_format */
- bfd_generic_archive_p, _bfd_dummy_target},
- {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},
-
- JUMP_TABLE(coff),
- COFF_SWAP_TABLE
- };
+CREATE_BIG_COFF_TARGET_VEC (z8k_coff_vec, "coff-z8k", 0, 0, '_', NULL, COFF_SWAP_TABLE)
projects / thirdparty / binutils-gdb.git / blobdiff