| /* BFD back-end for Sparc COFF files. |
| Copyright (C) 1990-2016 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 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/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 |
| }; |
| |
| /* This is stolen pretty directly from elf.c. */ |
| |
| static bfd_reloc_status_type |
| bfd_coff_generic_reloc (bfd *abfd ATTRIBUTE_UNUSED, |
| arelent *reloc_entry, |
| asymbol *symbol, |
| void * data ATTRIBUTE_UNUSED, |
| asection *input_section, |
| bfd *output_bfd, |
| char **error_message ATTRIBUTE_UNUSED) |
| { |
| 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, 0,3, 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 (bfd *abfd ATTRIBUTE_UNUSED, |
| 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 reloc_howto_type * |
| coff_sparc_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, |
| const char *r_name) |
| { |
| unsigned int i; |
| |
| for (i = 0; |
| i < (sizeof (coff_sparc_howto_table) |
| / sizeof (coff_sparc_howto_table[0])); |
| i++) |
| if (coff_sparc_howto_table[i].name != NULL |
| && strcasecmp (coff_sparc_howto_table[i].name, r_name) == 0) |
| return &coff_sparc_howto_table[i]; |
| |
| return NULL; |
| } |
| #define coff_bfd_reloc_name_lookup coff_sparc_reloc_name_lookup |
| |
| static void |
| rtype2howto (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 H_GET_32 |
| #define SWAP_OUT_RELOC_OFFSET 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 |
| |
| #define bfd_pe_print_pdata NULL |
| |
| #include "coffcode.h" |
| |
| #ifndef TARGET_SYM |
| #define TARGET_SYM sparc_coff_vec |
| #endif |
| |
| #ifndef TARGET_NAME |
| #define TARGET_NAME "coff-sparc" |
| #endif |
| |
| CREATE_BIG_COFF_TARGET_VEC (TARGET_SYM, TARGET_NAME, D_PAGED, 0, '_', NULL, COFF_SWAP_TABLE) |