| /* BFD back-end for Intel i860 COFF files. |
| Copyright (C) 1990-2016 Free Software Foundation, Inc. |
| Created mostly by substituting "860" for "386" in coff-i386.c |
| Harry Dolan <dolan@ssd.intel.com>, October 1995 |
| |
| 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 "libbfd.h" |
| |
| #include "coff/i860.h" |
| |
| #include "coff/internal.h" |
| |
| #ifndef bfd_pe_print_pdata |
| #define bfd_pe_print_pdata NULL |
| #endif |
| |
| #include "libcoff.h" |
| |
| |
| #define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (2) |
| /* The page size is a guess based on ELF. */ |
| |
| #define COFF_PAGE_SIZE 0x1000 |
| |
| /* For some reason when using i860 COFF the value stored in the .text |
| section for a reference to a common symbol is the value itself plus |
| any desired offset. Ian Taylor, Cygnus Support. */ |
| |
| /* If we are producing relocatable output, we need to do some |
| adjustments to the object file that are not done by the |
| bfd_perform_relocation function. This function is called by every |
| reloc type to make any required adjustments. */ |
| |
| static bfd_reloc_status_type |
| coff_i860_reloc (bfd *abfd, |
| arelent *reloc_entry, |
| asymbol *symbol, |
| void *data, |
| asection *input_section ATTRIBUTE_UNUSED, |
| bfd *output_bfd, |
| char **error_message ATTRIBUTE_UNUSED) |
| { |
| symvalue diff; |
| |
| if (output_bfd == (bfd *) NULL) |
| return bfd_reloc_continue; |
| |
| if (bfd_is_com_section (symbol->section)) |
| { |
| /* We are relocating a common symbol. The current value in the |
| object file is ORIG + OFFSET, where ORIG is the value of the |
| common symbol as seen by the object file when it was compiled |
| (this may be zero if the symbol was undefined) and OFFSET is |
| the offset into the common symbol (normally zero, but may be |
| non-zero when referring to a field in a common structure). |
| ORIG is the negative of reloc_entry->addend, which is set by |
| the CALC_ADDEND macro below. We want to replace the value in |
| the object file with NEW + OFFSET, where NEW is the value of |
| the common symbol which we are going to put in the final |
| object file. NEW is symbol->value. */ |
| diff = symbol->value + reloc_entry->addend; |
| } |
| else |
| { |
| /* For some reason bfd_perform_relocation always effectively |
| ignores the addend for a COFF target when producing |
| relocatable output. This seems to be always wrong for 860 |
| COFF, so we handle the addend here instead. */ |
| diff = reloc_entry->addend; |
| } |
| |
| #define DOIT(x) \ |
| x = ((x & ~howto->dst_mask) | (((x & howto->src_mask) + diff) & howto->dst_mask)) |
| |
| if (diff != 0) |
| { |
| reloc_howto_type *howto = reloc_entry->howto; |
| unsigned char *addr = (unsigned char *) data + reloc_entry->address; |
| |
| switch (howto->size) |
| { |
| case 0: |
| { |
| char x = bfd_get_8 (abfd, addr); |
| DOIT (x); |
| bfd_put_8 (abfd, x, addr); |
| } |
| break; |
| |
| case 1: |
| { |
| short x = bfd_get_16 (abfd, addr); |
| DOIT (x); |
| bfd_put_16 (abfd, (bfd_vma) x, addr); |
| } |
| break; |
| |
| case 2: |
| { |
| long x = bfd_get_32 (abfd, addr); |
| DOIT (x); |
| bfd_put_32 (abfd, (bfd_vma) x, addr); |
| } |
| break; |
| |
| default: |
| abort (); |
| } |
| } |
| |
| /* Now let bfd_perform_relocation finish everything up. */ |
| return bfd_reloc_continue; |
| } |
| |
| /* This is just a temporary measure until we teach bfd to generate |
| these relocations. */ |
| |
| static bfd_reloc_status_type |
| coff_i860_reloc_nyi (bfd *abfd ATTRIBUTE_UNUSED, |
| arelent *reloc_entry, |
| asymbol *symbol ATTRIBUTE_UNUSED, |
| void *data ATTRIBUTE_UNUSED, |
| asection *input_section ATTRIBUTE_UNUSED, |
| bfd *output_bfd ATTRIBUTE_UNUSED, |
| char **error_message ATTRIBUTE_UNUSED) |
| { |
| reloc_howto_type *howto = reloc_entry->howto; |
| (*_bfd_error_handler) (_("relocation `%s' not yet implemented"), howto->name); |
| return bfd_reloc_notsupported; |
| } |
| |
| #ifndef PCRELOFFSET |
| #define PCRELOFFSET FALSE |
| #endif |
| |
| static reloc_howto_type howto_table[] = |
| { |
| EMPTY_HOWTO (0), |
| EMPTY_HOWTO (1), |
| EMPTY_HOWTO (2), |
| EMPTY_HOWTO (3), |
| EMPTY_HOWTO (4), |
| EMPTY_HOWTO (5), |
| HOWTO (R_DIR32, /* type */ |
| 0, /* rightshift */ |
| 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 32, /* bitsize */ |
| FALSE, /* pc_relative */ |
| 0, /* bitpos */ |
| complain_overflow_bitfield, /* complain_on_overflow */ |
| coff_i860_reloc, /* special_function */ |
| "dir32", /* name */ |
| TRUE, /* partial_inplace */ |
| 0xffffffff, /* src_mask */ |
| 0xffffffff, /* dst_mask */ |
| TRUE), /* pcrel_offset */ |
| /* {7}, */ |
| HOWTO (R_IMAGEBASE, /* type */ |
| 0, /* rightshift */ |
| 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 32, /* bitsize */ |
| FALSE, /* pc_relative */ |
| 0, /* bitpos */ |
| complain_overflow_bitfield, /* complain_on_overflow */ |
| coff_i860_reloc, /* special_function */ |
| "rva32", /* name */ |
| TRUE, /* partial_inplace */ |
| 0xffffffff, /* src_mask */ |
| 0xffffffff, /* dst_mask */ |
| FALSE), /* pcrel_offset */ |
| EMPTY_HOWTO (010), |
| EMPTY_HOWTO (011), |
| EMPTY_HOWTO (012), |
| EMPTY_HOWTO (013), |
| EMPTY_HOWTO (014), |
| EMPTY_HOWTO (015), |
| EMPTY_HOWTO (016), |
| HOWTO (R_RELBYTE, /* type */ |
| 0, /* rightshift */ |
| 0, /* size (0 = byte, 1 = short, 2 = long) */ |
| 8, /* bitsize */ |
| FALSE, /* pc_relative */ |
| 0, /* bitpos */ |
| complain_overflow_bitfield, /* complain_on_overflow */ |
| coff_i860_reloc, /* special_function */ |
| "8", /* name */ |
| TRUE, /* partial_inplace */ |
| 0x000000ff, /* src_mask */ |
| 0x000000ff, /* dst_mask */ |
| PCRELOFFSET), /* pcrel_offset */ |
| HOWTO (R_RELWORD, /* type */ |
| 0, /* rightshift */ |
| 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 16, /* bitsize */ |
| FALSE, /* pc_relative */ |
| 0, /* bitpos */ |
| complain_overflow_bitfield, /* complain_on_overflow */ |
| coff_i860_reloc, /* special_function */ |
| "16", /* name */ |
| TRUE, /* partial_inplace */ |
| 0x0000ffff, /* src_mask */ |
| 0x0000ffff, /* dst_mask */ |
| PCRELOFFSET), /* pcrel_offset */ |
| HOWTO (R_RELLONG, /* type */ |
| 0, /* rightshift */ |
| 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 32, /* bitsize */ |
| FALSE, /* pc_relative */ |
| 0, /* bitpos */ |
| complain_overflow_bitfield, /* complain_on_overflow */ |
| coff_i860_reloc, /* special_function */ |
| "32", /* name */ |
| TRUE, /* partial_inplace */ |
| 0xffffffff, /* src_mask */ |
| 0xffffffff, /* dst_mask */ |
| PCRELOFFSET), /* pcrel_offset */ |
| HOWTO (R_PCRBYTE, /* type */ |
| 0, /* rightshift */ |
| 0, /* size (0 = byte, 1 = short, 2 = long) */ |
| 8, /* bitsize */ |
| TRUE, /* pc_relative */ |
| 0, /* bitpos */ |
| complain_overflow_signed, /* complain_on_overflow */ |
| coff_i860_reloc, /* special_function */ |
| "DISP8", /* name */ |
| TRUE, /* partial_inplace */ |
| 0x000000ff, /* src_mask */ |
| 0x000000ff, /* dst_mask */ |
| PCRELOFFSET), /* pcrel_offset */ |
| HOWTO (R_PCRWORD, /* type */ |
| 0, /* rightshift */ |
| 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 16, /* bitsize */ |
| TRUE, /* pc_relative */ |
| 0, /* bitpos */ |
| complain_overflow_signed, /* complain_on_overflow */ |
| coff_i860_reloc, /* special_function */ |
| "DISP16", /* name */ |
| TRUE, /* partial_inplace */ |
| 0x0000ffff, /* src_mask */ |
| 0x0000ffff, /* dst_mask */ |
| PCRELOFFSET), /* pcrel_offset */ |
| HOWTO (R_PCRLONG, /* type */ |
| 0, /* rightshift */ |
| 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 32, /* bitsize */ |
| TRUE, /* pc_relative */ |
| 0, /* bitpos */ |
| complain_overflow_signed, /* complain_on_overflow */ |
| coff_i860_reloc, /* special_function */ |
| "DISP32", /* name */ |
| TRUE, /* partial_inplace */ |
| 0xffffffff, /* src_mask */ |
| 0xffffffff, /* dst_mask */ |
| PCRELOFFSET), /* pcrel_offset */ |
| EMPTY_HOWTO (0x15), |
| EMPTY_HOWTO (0x16), |
| EMPTY_HOWTO (0x17), |
| EMPTY_HOWTO (0x18), |
| EMPTY_HOWTO (0x19), |
| EMPTY_HOWTO (0x1a), |
| EMPTY_HOWTO (0x1b), |
| HOWTO (COFF860_R_PAIR, /* type */ |
| 0, /* rightshift */ |
| 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 16, /* bitsize */ |
| FALSE, /* pc_relative */ |
| 0, /* bitpos */ |
| complain_overflow_dont, /* complain_on_overflow */ |
| coff_i860_reloc_nyi, /* special_function */ |
| "PAIR", /* name */ |
| FALSE, /* partial_inplace */ |
| 0xffff, /* src_mask */ |
| 0xffff, /* dst_mask */ |
| FALSE), /* pcrel_offset */ |
| EMPTY_HOWTO (0x1d), |
| HOWTO (COFF860_R_HIGH, /* type */ |
| 16, /* rightshift */ |
| 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 16, /* bitsize */ |
| FALSE, /* pc_relative */ |
| 0, /* bitpos */ |
| complain_overflow_dont, /* complain_on_overflow */ |
| coff_i860_reloc, /* special_function */ |
| "HIGH", /* name */ |
| FALSE, /* partial_inplace */ |
| 0xffff, /* src_mask */ |
| 0xffff, /* dst_mask */ |
| FALSE), /* pcrel_offset */ |
| HOWTO (COFF860_R_LOW0, /* type */ |
| 0, /* rightshift */ |
| 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 16, /* bitsize */ |
| FALSE, /* pc_relative */ |
| 0, /* bitpos */ |
| complain_overflow_dont, /* complain_on_overflow */ |
| coff_i860_reloc, /* special_function */ |
| "LOW0", /* name */ |
| FALSE, /* partial_inplace */ |
| 0xffff, /* src_mask */ |
| 0xffff, /* dst_mask */ |
| FALSE), /* pcrel_offset */ |
| HOWTO (COFF860_R_LOW1, /* type */ |
| 0, /* rightshift */ |
| 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 16, /* bitsize */ |
| FALSE, /* pc_relative */ |
| 0, /* bitpos */ |
| complain_overflow_dont, /* complain_on_overflow */ |
| coff_i860_reloc, /* special_function */ |
| "LOW1", /* name */ |
| FALSE, /* partial_inplace */ |
| 0xfffe, /* src_mask */ |
| 0xfffe, /* dst_mask */ |
| FALSE), /* pcrel_offset */ |
| HOWTO (COFF860_R_LOW2, /* type */ |
| 0, /* rightshift */ |
| 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 16, /* bitsize */ |
| FALSE, /* pc_relative */ |
| 0, /* bitpos */ |
| complain_overflow_dont, /* complain_on_overflow */ |
| coff_i860_reloc, /* special_function */ |
| "LOW2", /* name */ |
| FALSE, /* partial_inplace */ |
| 0xfffc, /* src_mask */ |
| 0xfffc, /* dst_mask */ |
| FALSE), /* pcrel_offset */ |
| HOWTO (COFF860_R_LOW3, /* type */ |
| 0, /* rightshift */ |
| 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 16, /* bitsize */ |
| FALSE, /* pc_relative */ |
| 0, /* bitpos */ |
| complain_overflow_dont, /* complain_on_overflow */ |
| coff_i860_reloc, /* special_function */ |
| "LOW3", /* name */ |
| FALSE, /* partial_inplace */ |
| 0xfff8, /* src_mask */ |
| 0xfff8, /* dst_mask */ |
| FALSE), /* pcrel_offset */ |
| HOWTO (COFF860_R_LOW4, /* type */ |
| 0, /* rightshift */ |
| 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 16, /* bitsize */ |
| FALSE, /* pc_relative */ |
| 0, /* bitpos */ |
| complain_overflow_dont, /* complain_on_overflow */ |
| coff_i860_reloc, /* special_function */ |
| "LOW4", /* name */ |
| FALSE, /* partial_inplace */ |
| 0xfff0, /* src_mask */ |
| 0xfff0, /* dst_mask */ |
| FALSE), /* pcrel_offset */ |
| HOWTO (COFF860_R_SPLIT0, /* type */ |
| 0, /* rightshift */ |
| 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 16, /* bitsize */ |
| FALSE, /* pc_relative */ |
| 0, /* bitpos */ |
| complain_overflow_dont, /* complain_on_overflow */ |
| coff_i860_reloc_nyi, /* special_function */ |
| "SPLIT0", /* name */ |
| FALSE, /* partial_inplace */ |
| 0x1f07ff, /* src_mask */ |
| 0x1f07ff, /* dst_mask */ |
| FALSE), /* pcrel_offset */ |
| HOWTO (COFF860_R_SPLIT1, /* type */ |
| 0, /* rightshift */ |
| 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 16, /* bitsize */ |
| FALSE, /* pc_relative */ |
| 0, /* bitpos */ |
| complain_overflow_dont, /* complain_on_overflow */ |
| coff_i860_reloc_nyi, /* special_function */ |
| "SPLIT1", /* name */ |
| FALSE, /* partial_inplace */ |
| 0x1f07fe, /* src_mask */ |
| 0x1f07fe, /* dst_mask */ |
| FALSE), /* pcrel_offset */ |
| HOWTO (COFF860_R_SPLIT2, /* type */ |
| 0, /* rightshift */ |
| 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 16, /* bitsize */ |
| FALSE, /* pc_relative */ |
| 0, /* bitpos */ |
| complain_overflow_dont, /* complain_on_overflow */ |
| coff_i860_reloc_nyi, /* special_function */ |
| "SPLIT2", /* name */ |
| FALSE, /* partial_inplace */ |
| 0x1f07fc, /* src_mask */ |
| 0x1f07fc, /* dst_mask */ |
| FALSE), /* pcrel_offset */ |
| HOWTO (COFF860_R_HIGHADJ, /* type */ |
| 0, /* rightshift */ |
| 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 16, /* bitsize */ |
| FALSE, /* pc_relative */ |
| 0, /* bitpos */ |
| complain_overflow_dont, /* complain_on_overflow */ |
| coff_i860_reloc_nyi, /* special_function */ |
| "HIGHADJ", /* name */ |
| FALSE, /* partial_inplace */ |
| 0xffff, /* src_mask */ |
| 0xffff, /* dst_mask */ |
| FALSE), /* pcrel_offset */ |
| HOWTO (COFF860_R_BRADDR, /* type */ |
| 2, /* rightshift */ |
| 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 26, /* bitsize */ |
| TRUE, /* pc_relative */ |
| 0, /* bitpos */ |
| complain_overflow_bitfield, /* complain_on_overflow */ |
| coff_i860_reloc_nyi, /* special_function */ |
| "BRADDR", /* name */ |
| FALSE, /* partial_inplace */ |
| 0x3ffffff, /* src_mask */ |
| 0x3ffffff, /* dst_mask */ |
| TRUE) /* pcrel_offset */ |
| }; |
| |
| /* Turn a howto into a reloc number. */ |
| |
| #define SELECT_RELOC(x,howto) { x.r_type = howto->type; } |
| #define BADMAG(x) I860BADMAG(x) |
| #define I860 1 /* Customize coffcode.h */ |
| |
| #define RTYPE2HOWTO(cache_ptr, dst) \ |
| ((cache_ptr)->howto = \ |
| ((dst)->r_type < sizeof (howto_table) / sizeof (howto_table[0]) \ |
| ? howto_table + (dst)->r_type \ |
| : NULL)) |
| |
| /* For 860 COFF a STYP_NOLOAD | STYP_BSS section is part of a shared |
| library. On some other COFF targets STYP_BSS is normally |
| STYP_NOLOAD. */ |
| #define BSS_NOLOAD_IS_SHARED_LIBRARY |
| |
| /* Compute the addend of a reloc. If the reloc is to a common symbol, |
| the object file contains the value of the common symbol. By the |
| time this is called, the linker may be using a different symbol |
| from a different object file with a different value. Therefore, we |
| hack wildly to locate the original symbol from this file so that we |
| can make the correct adjustment. This macro sets coffsym to the |
| symbol from the original file, and uses it to set the addend value |
| correctly. If this is not a common symbol, the usual addend |
| calculation is done, except that an additional tweak is needed for |
| PC relative relocs. |
| FIXME: This macro refers to symbols and asect; these are from the |
| calling function, not the macro arguments. */ |
| |
| /* PR 17512: file: 0a38fb7c |
| Set an addend value, even if it is not going to be used. A tool |
| like coffdump might be used to print out the contents of the reloc. */ |
| #define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) (cache_ptr)->addend = 0 |
| |
| /* We use the special COFF backend linker. */ |
| #define coff_relocate_section _bfd_coff_generic_relocate_section |
| |
| static reloc_howto_type * |
| coff_i860_rtype_to_howto (bfd *abfd ATTRIBUTE_UNUSED, |
| asection *sec, |
| struct internal_reloc *rel, |
| struct coff_link_hash_entry *h, |
| struct internal_syment *sym, |
| bfd_vma *addendp) |
| { |
| |
| reloc_howto_type *howto; |
| |
| if (rel->r_type > sizeof (howto_table) / sizeof (howto_table[0])) |
| { |
| bfd_set_error (bfd_error_bad_value); |
| return NULL; |
| } |
| |
| howto = howto_table + rel->r_type; |
| |
| if (howto->pc_relative) |
| *addendp += sec->vma; |
| |
| if (sym != NULL && sym->n_scnum == 0 && sym->n_value != 0) |
| { |
| /* This is a common symbol. The section contents include the |
| size (sym->n_value) as an addend. The relocate_section |
| function will be adding in the final value of the symbol. We |
| need to subtract out the current size in order to get the |
| correct result. */ |
| |
| BFD_ASSERT (h != NULL); |
| |
| /* I think we *do* want to bypass this. If we don't, I have seen some data |
| parameters get the wrong relocation address. If I link two versions |
| with and without this section bypassed and then do a binary comparison, |
| the addresses which are different can be looked up in the map. The |
| case in which this section has been bypassed has addresses which correspond |
| to values I can find in the map. */ |
| *addendp -= sym->n_value; |
| } |
| |
| /* If the output symbol is common (in which case this must be a |
| relocatable link), we need to add in the final size of the |
| common symbol. */ |
| if (h != NULL && h->root.type == bfd_link_hash_common) |
| *addendp += h->root.u.c.size; |
| |
| return howto; |
| } |
| |
| static reloc_howto_type * |
| coff_i860_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, |
| bfd_reloc_code_real_type code) |
| { |
| switch (code) |
| { |
| case BFD_RELOC_32: |
| return howto_table + R_DIR32; |
| case BFD_RELOC_860_PC26: |
| return howto_table + COFF860_R_BRADDR; |
| case BFD_RELOC_860_PC16: |
| /* ??? How to handle PC16 for COFF? SPLIT0 is close for now. */ |
| return howto_table + COFF860_R_SPLIT0; |
| case BFD_RELOC_860_LOW0: |
| return howto_table + COFF860_R_LOW0; |
| case BFD_RELOC_860_SPLIT0: |
| return howto_table + COFF860_R_SPLIT0; |
| case BFD_RELOC_860_LOW1: |
| return howto_table + COFF860_R_LOW1; |
| case BFD_RELOC_860_SPLIT1: |
| return howto_table + COFF860_R_SPLIT1; |
| case BFD_RELOC_860_LOW2: |
| return howto_table + COFF860_R_LOW2; |
| case BFD_RELOC_860_SPLIT2: |
| return howto_table + COFF860_R_SPLIT2; |
| case BFD_RELOC_860_LOW3: |
| return howto_table + COFF860_R_LOW3; |
| case BFD_RELOC_860_HIGHADJ: |
| return howto_table + COFF860_R_HIGHADJ; |
| case BFD_RELOC_860_HIGH: |
| return howto_table + COFF860_R_HIGH; |
| default: |
| BFD_FAIL (); |
| return 0; |
| } |
| } |
| |
| static reloc_howto_type * |
| coff_i860_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, |
| const char *r_name) |
| { |
| unsigned int i; |
| |
| for (i = 0; i < sizeof (howto_table) / sizeof (howto_table[0]); i++) |
| if (howto_table[i].name != NULL |
| && strcasecmp (howto_table[i].name, r_name) == 0) |
| return &howto_table[i]; |
| |
| return NULL; |
| } |
| |
| /* This is called from coff_slurp_reloc_table for each relocation |
| entry. This special handling is due to the `PAIR' relocation |
| which has a different meaning for the `r_symndx' field. */ |
| |
| static void |
| i860_reloc_processing (arelent *cache_ptr, struct internal_reloc *dst, |
| asymbol **symbols, bfd *abfd, asection *asect) |
| { |
| if (dst->r_type == COFF860_R_PAIR) |
| { |
| /* Handle the PAIR relocation specially. */ |
| cache_ptr->howto = howto_table + dst->r_type; |
| cache_ptr->address = dst->r_vaddr; |
| cache_ptr->addend = dst->r_symndx; |
| cache_ptr->sym_ptr_ptr= bfd_abs_section_ptr->symbol_ptr_ptr; |
| } |
| else |
| { |
| /* For every other relocation, do exactly what coff_slurp_reloc_table |
| would do (which this code is taken directly from). */ |
| asymbol *ptr = NULL; |
| cache_ptr->address = dst->r_vaddr; |
| |
| if (dst->r_symndx != -1) |
| { |
| if (dst->r_symndx < 0 || dst->r_symndx >= obj_conv_table_size (abfd)) |
| { |
| (*_bfd_error_handler) |
| (_("%B: warning: illegal symbol index %ld in relocs"), |
| abfd, dst->r_symndx); |
| cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; |
| ptr = NULL; |
| } |
| else |
| { |
| cache_ptr->sym_ptr_ptr = (symbols |
| + obj_convert (abfd)[dst->r_symndx]); |
| ptr = *(cache_ptr->sym_ptr_ptr); |
| } |
| } |
| else |
| { |
| cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; |
| ptr = NULL; |
| } |
| |
| /* The symbols definitions that we have read in have been |
| relocated as if their sections started at 0. But the offsets |
| refering to the symbols in the raw data have not been |
| modified, so we have to have a negative addend to compensate. |
| |
| Note that symbols which used to be common must be left alone. */ |
| |
| /* Calculate any reloc addend by looking at the symbol. */ |
| CALC_ADDEND (abfd, ptr, (*dst), cache_ptr); |
| (void) ptr; |
| |
| cache_ptr->address -= asect->vma; |
| |
| /* Fill in the cache_ptr->howto field from dst->r_type. */ |
| RTYPE2HOWTO (cache_ptr, dst); |
| } |
| } |
| |
| #define coff_rtype_to_howto coff_i860_rtype_to_howto |
| #define coff_bfd_reloc_type_lookup coff_i860_reloc_type_lookup |
| #define coff_bfd_reloc_name_lookup coff_i860_reloc_name_lookup |
| |
| #define RELOC_PROCESSING(relent, reloc, symbols, abfd, section) \ |
| i860_reloc_processing (relent, reloc, symbols, abfd, section) |
| |
| #include "coffcode.h" |
| |
| static const bfd_target * |
| i3coff_object_p(bfd *a) |
| { |
| return coff_object_p (a); |
| } |
| |
| const bfd_target |
| #ifdef TARGET_SYM |
| TARGET_SYM = |
| #else |
| i860_coff_vec = |
| #endif |
| { |
| #ifdef TARGET_NAME |
| TARGET_NAME, |
| #else |
| "coff-i860", /* name */ |
| #endif |
| bfd_target_coff_flavour, |
| BFD_ENDIAN_LITTLE, /* data byte order is little */ |
| BFD_ENDIAN_LITTLE, /* header byte order is little */ |
| |
| (HAS_RELOC | EXEC_P | /* object flags */ |
| HAS_LINENO | HAS_DEBUG | |
| HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED), |
| |
| (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */ |
| '_', /* leading underscore */ |
| '/', /* ar_pad_char */ |
| 15, /* ar_max_namelen */ |
| 0, /* match priority. */ |
| |
| 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 */ |
| |
| /* Note that we allow an object file to be treated as a core file as well. */ |
| {_bfd_dummy_target, i3coff_object_p, /* bfd_check_format */ |
| bfd_generic_archive_p, i3coff_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), |
| |
| NULL, |
| |
| COFF_SWAP_TABLE |
| }; |