| /* BFD back-end for Sparc COFF files. |
| Copyright 1990, 91, 92, 93, 94, 95, 96, 1997 Free Software Foundation, Inc. |
| Written by Cygnus Support. |
| |
| 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
| |
| #include "bfd.h" |
| #include "sysdep.h" |
| #include "libbfd.h" |
| #include "coff/sparc.h" |
| #include "coff/internal.h" |
| #include "libcoff.h" |
| |
| #define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (3) |
| |
| #define BADMAG(x) ((x).f_magic != SPARCMAGIC && (x).f_magic != LYNXCOFFMAGIC) |
| |
| /* The page size is a guess based on ELF. */ |
| #define COFF_PAGE_SIZE 0x10000 |
| |
| enum reloc_type |
| { |
| R_SPARC_NONE = 0, |
| R_SPARC_8, R_SPARC_16, R_SPARC_32, |
| R_SPARC_DISP8, R_SPARC_DISP16, R_SPARC_DISP32, |
| R_SPARC_WDISP30, R_SPARC_WDISP22, |
| R_SPARC_HI22, R_SPARC_22, |
| R_SPARC_13, R_SPARC_LO10, |
| R_SPARC_GOT10, R_SPARC_GOT13, R_SPARC_GOT22, |
| R_SPARC_PC10, R_SPARC_PC22, |
| R_SPARC_WPLT30, |
| R_SPARC_COPY, |
| R_SPARC_GLOB_DAT, R_SPARC_JMP_SLOT, |
| R_SPARC_RELATIVE, |
| R_SPARC_UA32, |
| R_SPARC_max |
| }; |
| |
| #if 0 |
| static CONST char *CONST reloc_type_names[] = |
| { |
| "R_SPARC_NONE", |
| "R_SPARC_8", "R_SPARC_16", "R_SPARC_32", |
| "R_SPARC_DISP8", "R_SPARC_DISP16", "R_SPARC_DISP32", |
| "R_SPARC_WDISP30", "R_SPARC_WDISP22", |
| "R_SPARC_HI22", "R_SPARC_22", |
| "R_SPARC_13", "R_SPARC_LO10", |
| "R_SPARC_GOT10", "R_SPARC_GOT13", "R_SPARC_GOT22", |
| "R_SPARC_PC10", "R_SPARC_PC22", |
| "R_SPARC_WPLT30", |
| "R_SPARC_COPY", |
| "R_SPARC_GLOB_DAT", "R_SPARC_JMP_SLOT", |
| "R_SPARC_RELATIVE", |
| "R_SPARC_UA32", |
| }; |
| #endif |
| |
| /* This is stolen pretty directly from elf.c. */ |
| static bfd_reloc_status_type |
| bfd_coff_generic_reloc PARAMS ((bfd *, arelent *, asymbol *, PTR, |
| asection *, bfd *, char **)); |
| |
| static bfd_reloc_status_type |
| bfd_coff_generic_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; |
| { |
| if (output_bfd != (bfd *) NULL |
| && (symbol->flags & BSF_SECTION_SYM) == 0) |
| { |
| reloc_entry->address += input_section->output_offset; |
| return bfd_reloc_ok; |
| } |
| |
| return bfd_reloc_continue; |
| } |
| |
| static reloc_howto_type coff_sparc_howto_table[] = |
| { |
| HOWTO(R_SPARC_NONE, 0,0, 0,false,0,complain_overflow_dont, bfd_coff_generic_reloc,"R_SPARC_NONE", false,0,0x00000000,true), |
| HOWTO(R_SPARC_8, 0,0, 8,false,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_8", false,0,0x000000ff,true), |
| HOWTO(R_SPARC_16, 0,1,16,false,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_16", false,0,0x0000ffff,true), |
| HOWTO(R_SPARC_32, 0,2,32,false,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_32", false,0,0xffffffff,true), |
| HOWTO(R_SPARC_DISP8, 0,0, 8,true, 0,complain_overflow_signed, bfd_coff_generic_reloc,"R_SPARC_DISP8", false,0,0x000000ff,true), |
| HOWTO(R_SPARC_DISP16, 0,1,16,true, 0,complain_overflow_signed, bfd_coff_generic_reloc,"R_SPARC_DISP16", false,0,0x0000ffff,true), |
| HOWTO(R_SPARC_DISP32, 0,2,32,true, 0,complain_overflow_signed, bfd_coff_generic_reloc,"R_SPARC_DISP32", false,0,0x00ffffff,true), |
| HOWTO(R_SPARC_WDISP30, 2,2,30,true, 0,complain_overflow_signed, bfd_coff_generic_reloc,"R_SPARC_WDISP30", false,0,0x3fffffff,true), |
| HOWTO(R_SPARC_WDISP22, 2,2,22,true, 0,complain_overflow_signed, bfd_coff_generic_reloc,"R_SPARC_WDISP22", false,0,0x003fffff,true), |
| HOWTO(R_SPARC_HI22, 10,2,22,false,0,complain_overflow_dont, bfd_coff_generic_reloc,"R_SPARC_HI22", false,0,0x003fffff,true), |
| HOWTO(R_SPARC_22, 0,2,22,false,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_22", false,0,0x003fffff,true), |
| HOWTO(R_SPARC_13, 0,2,13,false,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_13", false,0,0x00001fff,true), |
| HOWTO(R_SPARC_LO10, 0,2,10,false,0,complain_overflow_dont, bfd_coff_generic_reloc,"R_SPARC_LO10", false,0,0x000003ff,true), |
| HOWTO(R_SPARC_GOT10, 0,2,10,false,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_GOT10", false,0,0x000003ff,true), |
| HOWTO(R_SPARC_GOT13, 0,2,13,false,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_GOT13", false,0,0x00001fff,true), |
| HOWTO(R_SPARC_GOT22, 10,2,22,false,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_GOT22", false,0,0x003fffff,true), |
| HOWTO(R_SPARC_PC10, 0,2,10,false,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_PC10", false,0,0x000003ff,true), |
| HOWTO(R_SPARC_PC22, 0,2,22,false,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_PC22", false,0,0x003fffff,true), |
| HOWTO(R_SPARC_WPLT30, 0,0,00,false,0,complain_overflow_dont, bfd_coff_generic_reloc,"R_SPARC_WPLT30", false,0,0x00000000,true), |
| HOWTO(R_SPARC_COPY, 0,0,00,false,0,complain_overflow_dont, bfd_coff_generic_reloc,"R_SPARC_COPY", false,0,0x00000000,true), |
| HOWTO(R_SPARC_GLOB_DAT,0,0,00,false,0,complain_overflow_dont, bfd_coff_generic_reloc,"R_SPARC_GLOB_DAT",false,0,0x00000000,true), |
| HOWTO(R_SPARC_JMP_SLOT,0,0,00,false,0,complain_overflow_dont, bfd_coff_generic_reloc,"R_SPARC_JMP_SLOT",false,0,0x00000000,true), |
| HOWTO(R_SPARC_RELATIVE,0,0,00,false,0,complain_overflow_dont, bfd_coff_generic_reloc,"R_SPARC_RELATIVE",false,0,0x00000000,true), |
| HOWTO(R_SPARC_UA32, 0,0,00,false,0,complain_overflow_dont, bfd_coff_generic_reloc,"R_SPARC_UA32", false,0,0x00000000,true), |
| }; |
| |
| struct coff_reloc_map { |
| bfd_reloc_code_real_type bfd_reloc_val; |
| unsigned char coff_reloc_val; |
| }; |
| |
| static CONST struct coff_reloc_map sparc_reloc_map[] = |
| { |
| { BFD_RELOC_NONE, R_SPARC_NONE, }, |
| { BFD_RELOC_16, R_SPARC_16, }, |
| { BFD_RELOC_8, R_SPARC_8 }, |
| { BFD_RELOC_8_PCREL, R_SPARC_DISP8 }, |
| { BFD_RELOC_CTOR, R_SPARC_32 }, /* @@ Assumes 32 bits. */ |
| { BFD_RELOC_32, R_SPARC_32 }, |
| { BFD_RELOC_32_PCREL, R_SPARC_DISP32 }, |
| { BFD_RELOC_HI22, R_SPARC_HI22 }, |
| { BFD_RELOC_LO10, R_SPARC_LO10, }, |
| { BFD_RELOC_32_PCREL_S2, R_SPARC_WDISP30 }, |
| { BFD_RELOC_SPARC22, R_SPARC_22 }, |
| { BFD_RELOC_SPARC13, R_SPARC_13 }, |
| { BFD_RELOC_SPARC_GOT10, R_SPARC_GOT10 }, |
| { BFD_RELOC_SPARC_GOT13, R_SPARC_GOT13 }, |
| { BFD_RELOC_SPARC_GOT22, R_SPARC_GOT22 }, |
| { BFD_RELOC_SPARC_PC10, R_SPARC_PC10 }, |
| { BFD_RELOC_SPARC_PC22, R_SPARC_PC22 }, |
| { BFD_RELOC_SPARC_WPLT30, R_SPARC_WPLT30 }, |
| { BFD_RELOC_SPARC_COPY, R_SPARC_COPY }, |
| { BFD_RELOC_SPARC_GLOB_DAT, R_SPARC_GLOB_DAT }, |
| { BFD_RELOC_SPARC_JMP_SLOT, R_SPARC_JMP_SLOT }, |
| { BFD_RELOC_SPARC_RELATIVE, R_SPARC_RELATIVE }, |
| { BFD_RELOC_SPARC_WDISP22, R_SPARC_WDISP22 }, |
| /* { BFD_RELOC_SPARC_UA32, R_SPARC_UA32 }, not used?? */ |
| }; |
| |
| static reloc_howto_type * |
| coff_sparc_reloc_type_lookup (abfd, code) |
| bfd *abfd; |
| bfd_reloc_code_real_type code; |
| { |
| unsigned int i; |
| for (i = 0; i < sizeof (sparc_reloc_map) / sizeof (struct coff_reloc_map); i++) |
| { |
| if (sparc_reloc_map[i].bfd_reloc_val == code) |
| return &coff_sparc_howto_table[(int) sparc_reloc_map[i].coff_reloc_val]; |
| } |
| return 0; |
| } |
| #define coff_bfd_reloc_type_lookup coff_sparc_reloc_type_lookup |
| |
| static void |
| rtype2howto (cache_ptr, dst) |
| arelent *cache_ptr; |
| struct internal_reloc *dst; |
| { |
| BFD_ASSERT (dst->r_type < (unsigned int) R_SPARC_max); |
| cache_ptr->howto = &coff_sparc_howto_table[dst->r_type]; |
| } |
| |
| #define RTYPE2HOWTO(internal, relocentry) rtype2howto(internal,relocentry) |
| |
| #define SWAP_IN_RELOC_OFFSET bfd_h_get_32 |
| #define SWAP_OUT_RELOC_OFFSET bfd_h_put_32 |
| #define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \ |
| cache_ptr->addend = reloc.r_offset; |
| |
| /* Clear the r_spare field in relocs. */ |
| #define SWAP_OUT_RELOC_EXTRA(abfd,src,dst) \ |
| do { \ |
| dst->r_spare[0] = 0; \ |
| dst->r_spare[1] = 0; \ |
| } while (0) |
| |
| #define __A_MAGIC_SET__ |
| |
| /* Enable Sparc-specific hacks in coffcode.h. */ |
| |
| #define COFF_SPARC |
| |
| #include "coffcode.h" |
| |
| const bfd_target |
| #ifdef TARGET_SYM |
| TARGET_SYM = |
| #else |
| sparccoff_vec = |
| #endif |
| { |
| #ifdef TARGET_NAME |
| TARGET_NAME, |
| #else |
| "coff-sparc", /* name */ |
| #endif |
| bfd_target_coff_flavour, |
| BFD_ENDIAN_BIG, /* data byte order is big */ |
| BFD_ENDIAN_BIG, /* header byte order is big */ |
| |
| (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 */ |
| |
| 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 */ |
| |
| /* Note that we allow an object file to be treated as a core file as well. */ |
| {_bfd_dummy_target, coff_object_p, /* bfd_check_format */ |
| bfd_generic_archive_p, 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, |
| }; |