/* SPARC-specific support for 32-bit ELF
- Copyright 1993 Free Software Foundation, Inc.
+ Copyright (C) 1993, 94, 95, 96, 97, 98, 1999 Free Software Foundation, Inc.
This file is part of BFD, the Binary File Descriptor library.
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. */
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#include "bfd.h"
#include "sysdep.h"
#include "bfdlink.h"
#include "libbfd.h"
-#include "libelf.h"
+#include "elf-bfd.h"
+#include "elf/sparc.h"
-static CONST struct reloc_howto_struct *bfd_elf32_bfd_reloc_type_lookup
+static reloc_howto_type *elf32_sparc_reloc_type_lookup
PARAMS ((bfd *, bfd_reloc_code_real_type));
-static void elf_info_to_howto
+static void elf32_sparc_info_to_howto
PARAMS ((bfd *, arelent *, Elf_Internal_Rela *));
-static boolean elf32_sparc_create_dynamic_sections
- PARAMS ((bfd *, struct bfd_link_info *));
static boolean elf32_sparc_check_relocs
PARAMS ((bfd *, struct bfd_link_info *, asection *,
const Elf_Internal_Rela *));
PARAMS ((bfd *, struct bfd_link_info *));
static boolean elf32_sparc_relocate_section
PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
- Elf_Internal_Rela *, Elf_Internal_Sym *, asection **, char *));
+ Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
static boolean elf32_sparc_finish_dynamic_symbol
PARAMS ((bfd *, struct bfd_link_info *, struct elf_link_hash_entry *,
Elf_Internal_Sym *));
static boolean elf32_sparc_finish_dynamic_sections
PARAMS ((bfd *, struct bfd_link_info *));
+static boolean elf32_sparc_merge_private_bfd_data PARAMS ((bfd *, bfd *));
+static boolean elf32_sparc_object_p
+ PARAMS ((bfd *));
+static void elf32_sparc_final_write_processing
+ PARAMS ((bfd *, boolean));
+\f
+/* The relocation "howto" table. */
-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
- };
+static bfd_reloc_status_type sparc_elf_notsupported_reloc
+ PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
+static bfd_reloc_status_type sparc_elf_wdisp16_reloc
+ PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
-#if 0
-static CONST char *CONST reloc_type_names[] =
+reloc_howto_type _bfd_sparc_elf_howto_table[] =
{
- "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",
+ HOWTO(R_SPARC_NONE, 0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", false,0,0x00000000,true),
+ HOWTO(R_SPARC_8, 0,0, 8,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_8", false,0,0x000000ff,true),
+ HOWTO(R_SPARC_16, 0,1,16,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_16", false,0,0x0000ffff,true),
+ HOWTO(R_SPARC_32, 0,2,32,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_32", false,0,0xffffffff,true),
+ HOWTO(R_SPARC_DISP8, 0,0, 8,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP8", false,0,0x000000ff,true),
+ HOWTO(R_SPARC_DISP16, 0,1,16,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP16", false,0,0x0000ffff,true),
+ HOWTO(R_SPARC_DISP32, 0,2,32,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP32", false,0,0x00ffffff,true),
+ HOWTO(R_SPARC_WDISP30, 2,2,30,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP30", false,0,0x3fffffff,true),
+ HOWTO(R_SPARC_WDISP22, 2,2,22,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP22", false,0,0x003fffff,true),
+ HOWTO(R_SPARC_HI22, 10,2,22,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HI22", false,0,0x003fffff,true),
+ HOWTO(R_SPARC_22, 0,2,22,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_22", false,0,0x003fffff,true),
+ HOWTO(R_SPARC_13, 0,2,13,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_13", false,0,0x00001fff,true),
+ HOWTO(R_SPARC_LO10, 0,2,10,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LO10", false,0,0x000003ff,true),
+ HOWTO(R_SPARC_GOT10, 0,2,10,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT10", false,0,0x000003ff,true),
+ HOWTO(R_SPARC_GOT13, 0,2,13,false,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_GOT13", false,0,0x00001fff,true),
+ HOWTO(R_SPARC_GOT22, 10,2,22,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT22", false,0,0x003fffff,true),
+ HOWTO(R_SPARC_PC10, 0,2,10,true, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC10", false,0,0x000003ff,true),
+ HOWTO(R_SPARC_PC22, 10,2,22,true, 0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PC22", false,0,0x003fffff,true),
+ HOWTO(R_SPARC_WPLT30, 2,2,30,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WPLT30", false,0,0x3fffffff,true),
+ HOWTO(R_SPARC_COPY, 0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_COPY", false,0,0x00000000,true),
+ HOWTO(R_SPARC_GLOB_DAT, 0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GLOB_DAT",false,0,0x00000000,true),
+ HOWTO(R_SPARC_JMP_SLOT, 0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_JMP_SLOT",false,0,0x00000000,true),
+ HOWTO(R_SPARC_RELATIVE, 0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_RELATIVE",false,0,0x00000000,true),
+ HOWTO(R_SPARC_UA32, 0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_UA32", false,0,0x00000000,true),
+ HOWTO(R_SPARC_PLT32, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_PLT32", false,0,0x00000000,true),
+ HOWTO(R_SPARC_HIPLT22, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_HIPLT22", false,0,0x00000000,true),
+ HOWTO(R_SPARC_LOPLT10, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_LOPLT10", false,0,0x00000000,true),
+ HOWTO(R_SPARC_PCPLT32, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_PCPLT32", false,0,0x00000000,true),
+ HOWTO(R_SPARC_PCPLT22, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_PCPLT22", false,0,0x00000000,true),
+ HOWTO(R_SPARC_PCPLT10, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_PCPLT10", false,0,0x00000000,true),
+ HOWTO(R_SPARC_10, 0,2,10,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_10", false,0,0x000003ff,true),
+ HOWTO(R_SPARC_11, 0,2,11,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_11", false,0,0x000007ff,true),
+ /* These are for sparc64 in a 64 bit environment.
+ Values need to be here because the table is indexed by reloc number. */
+ HOWTO(R_SPARC_64, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_64", false,0,0x00000000,true),
+ HOWTO(R_SPARC_OLO10, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_OLO10", false,0,0x00000000,true),
+ HOWTO(R_SPARC_HH22, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_HH22", false,0,0x00000000,true),
+ HOWTO(R_SPARC_HM10, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_HM10", false,0,0x00000000,true),
+ HOWTO(R_SPARC_LM22, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_LM22", false,0,0x00000000,true),
+ HOWTO(R_SPARC_PC_HH22, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_PC_HH22", false,0,0x00000000,true),
+ HOWTO(R_SPARC_PC_HM10, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_PC_HM10", false,0,0x00000000,true),
+ HOWTO(R_SPARC_PC_LM22, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_PC_LM22", false,0,0x00000000,true),
+ /* End sparc64 in 64 bit environment values.
+ The following are for sparc64 in a 32 bit environment. */
+ HOWTO(R_SPARC_WDISP16, 2,2,16,true, 0,complain_overflow_signed, sparc_elf_wdisp16_reloc,"R_SPARC_WDISP16", false,0,0x00000000,true),
+ HOWTO(R_SPARC_WDISP19, 2,2,19,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP19", false,0,0x0007ffff,true),
+ HOWTO(R_SPARC_UNUSED_42, 0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_UNUSED_42",false,0,0x00000000,true),
+ HOWTO(R_SPARC_7, 0,2, 7,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_7", false,0,0x0000007f,true),
+ HOWTO(R_SPARC_5, 0,2, 5,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_5", false,0,0x0000001f,true),
+ HOWTO(R_SPARC_6, 0,2, 6,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_6", false,0,0x0000003f,true),
+ HOWTO(R_SPARC_NONE, 0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", false,0,0x00000000,true),
+ HOWTO(R_SPARC_NONE, 0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", false,0,0x00000000,true),
+ HOWTO(R_SPARC_NONE, 0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", false,0,0x00000000,true),
+ HOWTO(R_SPARC_NONE, 0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", false,0,0x00000000,true),
+ HOWTO(R_SPARC_NONE, 0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", false,0,0x00000000,true),
+ HOWTO(R_SPARC_NONE, 0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", false,0,0x00000000,true),
+ HOWTO(R_SPARC_NONE, 0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", false,0,0x00000000,true),
+ HOWTO(R_SPARC_NONE, 0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", false,0,0x00000000,true),
+ HOWTO(R_SPARC_NONE, 0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", false,0,0x00000000,true),
+ HOWTO(R_SPARC_NONE, 0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", false,0,0x00000000,true),
+ HOWTO(R_SPARC_REV32, 0,2,32,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_REV32", false,0,0xffffffff,true),
};
-#endif
+static reloc_howto_type elf32_sparc_vtinherit_howto =
+ HOWTO (R_SPARC_GNU_VTINHERIT, 0,2,0,false,0,complain_overflow_dont, NULL, "R_SPARC_GNU_VTINHERIT", false,0, 0, false);
+static reloc_howto_type elf32_sparc_vtentry_howto =
+ HOWTO (R_SPARC_GNU_VTENTRY, 0,2,0,false,0,complain_overflow_dont, _bfd_elf_rel_vtable_reloc_fn,"R_SPARC_GNU_VTENTRY", false,0,0, false);
-static reloc_howto_type elf_sparc_howto_table[] =
-{
- HOWTO(R_SPARC_NONE, 0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc,"R_SPARC_NONE", false,0,0x00000000,true),
- HOWTO(R_SPARC_8, 0,0, 8,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_8", false,0,0x000000ff,true),
- HOWTO(R_SPARC_16, 0,1,16,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_16", false,0,0x0000ffff,true),
- HOWTO(R_SPARC_32, 0,2,32,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_32", false,0,0xffffffff,true),
- HOWTO(R_SPARC_DISP8, 0,0, 8,true, 0,complain_overflow_signed, bfd_elf_generic_reloc,"R_SPARC_DISP8", false,0,0x000000ff,true),
- HOWTO(R_SPARC_DISP16, 0,1,16,true, 0,complain_overflow_signed, bfd_elf_generic_reloc,"R_SPARC_DISP16", false,0,0x0000ffff,true),
- HOWTO(R_SPARC_DISP32, 0,2,32,true, 0,complain_overflow_signed, bfd_elf_generic_reloc,"R_SPARC_DISP32", false,0,0x00ffffff,true),
- HOWTO(R_SPARC_WDISP30, 2,2,30,true, 0,complain_overflow_signed, bfd_elf_generic_reloc,"R_SPARC_WDISP30", false,0,0x3fffffff,true),
- HOWTO(R_SPARC_WDISP22, 2,2,22,true, 0,complain_overflow_signed, bfd_elf_generic_reloc,"R_SPARC_WDISP22", false,0,0x003fffff,true),
- HOWTO(R_SPARC_HI22, 10,2,22,false,0,complain_overflow_dont, bfd_elf_generic_reloc,"R_SPARC_HI22", false,0,0x003fffff,true),
- HOWTO(R_SPARC_22, 0,2,22,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_22", false,0,0x003fffff,true),
- HOWTO(R_SPARC_13, 0,2,13,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_13", false,0,0x00001fff,true),
- HOWTO(R_SPARC_LO10, 0,2,10,false,0,complain_overflow_dont, bfd_elf_generic_reloc,"R_SPARC_LO10", false,0,0x000003ff,true),
- HOWTO(R_SPARC_GOT10, 0,2,10,false,0,complain_overflow_dont, bfd_elf_generic_reloc,"R_SPARC_GOT10", false,0,0x000003ff,true),
- HOWTO(R_SPARC_GOT13, 0,2,13,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_GOT13", false,0,0x00001fff,true),
- HOWTO(R_SPARC_GOT22, 10,2,22,false,0,complain_overflow_dont, bfd_elf_generic_reloc,"R_SPARC_GOT22", false,0,0x003fffff,true),
- HOWTO(R_SPARC_PC10, 0,2,10,true, 0,complain_overflow_dont, bfd_elf_generic_reloc,"R_SPARC_PC10", false,0,0x000003ff,true),
- HOWTO(R_SPARC_PC22, 0,2,22,true, 0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_PC22", false,0,0x003fffff,true),
- HOWTO(R_SPARC_WPLT30, 0,0,00,true, 0,complain_overflow_dont, bfd_elf_generic_reloc,"R_SPARC_WPLT30", false,0,0x00000000,true),
- HOWTO(R_SPARC_COPY, 0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc,"R_SPARC_COPY", false,0,0x00000000,true),
- HOWTO(R_SPARC_GLOB_DAT,0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc,"R_SPARC_GLOB_DAT",false,0,0x00000000,true),
- HOWTO(R_SPARC_JMP_SLOT,0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc,"R_SPARC_JMP_SLOT",false,0,0x00000000,true),
- HOWTO(R_SPARC_RELATIVE,0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc,"R_SPARC_RELATIVE",false,0,0x00000000,true),
- HOWTO(R_SPARC_UA32, 0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc,"R_SPARC_UA32", false,0,0x00000000,true),
-};
struct elf_reloc_map {
- unsigned char bfd_reloc_val;
+ bfd_reloc_code_real_type bfd_reloc_val;
unsigned char elf_reloc_val;
};
{ 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_CTOR, R_SPARC_32 },
{ BFD_RELOC_32, R_SPARC_32 },
{ BFD_RELOC_32_PCREL, R_SPARC_DISP32 },
{ BFD_RELOC_HI22, R_SPARC_HI22 },
{ BFD_RELOC_SPARC_JMP_SLOT, R_SPARC_JMP_SLOT },
{ BFD_RELOC_SPARC_RELATIVE, R_SPARC_RELATIVE },
{ BFD_RELOC_SPARC_WDISP22, R_SPARC_WDISP22 },
+ /* ??? Doesn't dwarf use this? */
/*{ BFD_RELOC_SPARC_UA32, R_SPARC_UA32 }, not used?? */
+ {BFD_RELOC_SPARC_10, R_SPARC_10},
+ {BFD_RELOC_SPARC_11, R_SPARC_11},
+ {BFD_RELOC_SPARC_64, R_SPARC_64},
+ {BFD_RELOC_SPARC_OLO10, R_SPARC_OLO10},
+ {BFD_RELOC_SPARC_HH22, R_SPARC_HH22},
+ {BFD_RELOC_SPARC_HM10, R_SPARC_HM10},
+ {BFD_RELOC_SPARC_LM22, R_SPARC_LM22},
+ {BFD_RELOC_SPARC_PC_HH22, R_SPARC_PC_HH22},
+ {BFD_RELOC_SPARC_PC_HM10, R_SPARC_PC_HM10},
+ {BFD_RELOC_SPARC_PC_LM22, R_SPARC_PC_LM22},
+ {BFD_RELOC_SPARC_WDISP16, R_SPARC_WDISP16},
+ {BFD_RELOC_SPARC_WDISP19, R_SPARC_WDISP19},
+ {BFD_RELOC_SPARC_7, R_SPARC_7},
+ {BFD_RELOC_SPARC_5, R_SPARC_5},
+ {BFD_RELOC_SPARC_6, R_SPARC_6},
+ {BFD_RELOC_SPARC_REV32, R_SPARC_REV32 },
+ {BFD_RELOC_VTABLE_INHERIT, R_SPARC_GNU_VTINHERIT},
+ {BFD_RELOC_VTABLE_ENTRY, R_SPARC_GNU_VTENTRY},
};
-static CONST struct reloc_howto_struct *
-bfd_elf32_bfd_reloc_type_lookup (abfd, code)
- bfd *abfd;
+static reloc_howto_type *
+elf32_sparc_reloc_type_lookup (abfd, code)
+ bfd *abfd ATTRIBUTE_UNUSED;
bfd_reloc_code_real_type code;
{
- int i;
- for (i = 0; i < sizeof (sparc_reloc_map) / sizeof (struct elf_reloc_map); i++)
+ unsigned int i;
+
+ switch (code)
{
- if (sparc_reloc_map[i].bfd_reloc_val == code)
- return &elf_sparc_howto_table[(int) sparc_reloc_map[i].elf_reloc_val];
+ case BFD_RELOC_VTABLE_INHERIT:
+ return &elf32_sparc_vtinherit_howto;
+
+ case BFD_RELOC_VTABLE_ENTRY:
+ return &elf32_sparc_vtentry_howto;
+
+ default:
+ for (i = 0; i < sizeof (sparc_reloc_map) / sizeof (struct elf_reloc_map); i++)
+ {
+ if (sparc_reloc_map[i].bfd_reloc_val == code)
+ return &_bfd_sparc_elf_howto_table[(int) sparc_reloc_map[i].elf_reloc_val];
+ }
}
- return 0;
+ bfd_set_error (bfd_error_bad_value);
+ return NULL;
}
+/* We need to use ELF32_R_TYPE so we have our own copy of this function,
+ and elf64-sparc.c has its own copy. */
+
static void
-elf_info_to_howto (abfd, cache_ptr, dst)
- bfd *abfd;
+elf32_sparc_info_to_howto (abfd, cache_ptr, dst)
+ bfd *abfd ATTRIBUTE_UNUSED;
arelent *cache_ptr;
Elf_Internal_Rela *dst;
{
- BFD_ASSERT (ELF32_R_TYPE(dst->r_info) < (unsigned int) R_SPARC_max);
- cache_ptr->howto = &elf_sparc_howto_table[ELF32_R_TYPE(dst->r_info)];
+ switch (ELF32_R_TYPE(dst->r_info))
+ {
+ case R_SPARC_GNU_VTINHERIT:
+ cache_ptr->howto = &elf32_sparc_vtinherit_howto;
+ break;
+
+ case R_SPARC_GNU_VTENTRY:
+ cache_ptr->howto = &elf32_sparc_vtentry_howto;
+ break;
+
+ default:
+ BFD_ASSERT (ELF32_R_TYPE(dst->r_info) < (unsigned int) R_SPARC_max_std);
+ cache_ptr->howto = &_bfd_sparc_elf_howto_table[ELF32_R_TYPE(dst->r_info)];
+ }
+}
+\f
+/* For unsupported relocs. */
+
+static bfd_reloc_status_type
+sparc_elf_notsupported_reloc (abfd,
+ reloc_entry,
+ symbol,
+ data,
+ input_section,
+ output_bfd,
+ error_message)
+ bfd *abfd ATTRIBUTE_UNUSED;
+ arelent *reloc_entry ATTRIBUTE_UNUSED;
+ asymbol *symbol ATTRIBUTE_UNUSED;
+ PTR data ATTRIBUTE_UNUSED;
+ asection *input_section ATTRIBUTE_UNUSED;
+ bfd *output_bfd ATTRIBUTE_UNUSED;
+ char **error_message ATTRIBUTE_UNUSED;
+{
+ return bfd_reloc_notsupported;
}
+/* Handle the WDISP16 reloc. */
+
+static bfd_reloc_status_type
+sparc_elf_wdisp16_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 ATTRIBUTE_UNUSED;
+{
+ bfd_vma relocation;
+ bfd_vma x;
+
+ if (output_bfd != (bfd *) NULL
+ && (symbol->flags & BSF_SECTION_SYM) == 0
+ && (! reloc_entry->howto->partial_inplace
+ || reloc_entry->addend == 0))
+ {
+ reloc_entry->address += input_section->output_offset;
+ return bfd_reloc_ok;
+ }
+
+ if (output_bfd != NULL)
+ return bfd_reloc_continue;
+
+ if (reloc_entry->address > input_section->_cooked_size)
+ return bfd_reloc_outofrange;
+
+ relocation = (symbol->value
+ + symbol->section->output_section->vma
+ + symbol->section->output_offset);
+ relocation += reloc_entry->addend;
+ relocation -= (input_section->output_section->vma
+ + input_section->output_offset);
+ relocation -= reloc_entry->address;
+
+ x = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
+ x |= ((((relocation >> 2) & 0xc000) << 6)
+ | ((relocation >> 2) & 0x3fff));
+ bfd_put_32 (abfd, x, (bfd_byte *) data + reloc_entry->address);
+
+ if ((bfd_signed_vma) relocation < - 0x40000
+ || (bfd_signed_vma) relocation > 0x3ffff)
+ return bfd_reloc_overflow;
+ else
+ return bfd_reloc_ok;
+}
\f
/* Functions for the SPARC ELF linker. */
/* nop. */
#define PLT_ENTRY_WORD2 SPARC_NOP
-/* Create dynamic sections when linking against a dynamic object. */
-
-static boolean
-elf32_sparc_create_dynamic_sections (abfd, info)
- bfd *abfd;
- struct bfd_link_info *info;
-{
- flagword flags;
- register asection *s;
- struct elf_link_hash_entry *h;
-
- /* We need to create .plt, .rela.plt, .got, .dynbss, and .rela.bss
- sections. */
-
- flags = SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY;
-
- s = bfd_make_section (abfd, ".plt");
- if (s == NULL
- || ! bfd_set_section_flags (abfd, s, flags | SEC_CODE)
- || ! bfd_set_section_alignment (abfd, s, 2))
- return false;
-
- /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
- .plt section. */
- h = NULL;
- if (! (_bfd_generic_link_add_one_symbol
- (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s, (bfd_vma) 0,
- (const char *) NULL, false, get_elf_backend_data (abfd)->collect,
- (struct bfd_link_hash_entry **) &h)))
- return false;
- h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
- h->type = STT_OBJECT;
-
- if (info->shared
- && ! bfd_elf32_link_record_dynamic_symbol (info, h))
- return false;
-
- /* The first four entries in .plt are reserved. */
- s->_raw_size = 4 * PLT_ENTRY_SIZE;
-
- s = bfd_make_section (abfd, ".rela.plt");
- if (s == NULL
- || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY)
- || ! bfd_set_section_alignment (abfd, s, 2))
- return false;
-
- s = bfd_make_section (abfd, ".got");
- if (s == NULL
- || ! bfd_set_section_flags (abfd, s, flags)
- || ! bfd_set_section_alignment (abfd, s, 2))
- return false;
-
- /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got
- section. We don't do this in the linker script because we don't
- want to define the symbol if we are not creating a global offset
- table. FIXME: The Solaris linker puts _GLOBAL_OFFSET_TABLE_ at
- the start of the .got section, but when using the small PIC model
- the .got is accessed using a signed 13 bit offset. Shouldn't
- _GLOBAL_OFFSET_TABLE_ be located at .got + 4096? */
- h = NULL;
- if (! (_bfd_generic_link_add_one_symbol
- (info, abfd, "_GLOBAL_OFFSET_TABLE_", BSF_GLOBAL, s, (bfd_vma) 0,
- (const char *) NULL, false, get_elf_backend_data (abfd)->collect,
- (struct bfd_link_hash_entry **) &h)))
- return false;
- h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
- h->type = STT_OBJECT;
-
- if (info->shared
- && ! bfd_elf32_link_record_dynamic_symbol (info, h))
- return false;
-
- /* The first global offset table entry is reserved. */
- s->_raw_size += 4;
-
- /* The .dynbss section is a place to put symbols which are defined
- by dynamic objects, are referenced by regular objects, and are
- not functions. We must allocate space for them in the process
- image and use a R_SPARC_COPY reloc to tell the dynamic linker to
- initialize them at run time. The linker script puts the .dynbss
- section into the .bss section of the final image. */
- s = bfd_make_section (abfd, ".dynbss");
- if (s == NULL
- || ! bfd_set_section_flags (abfd, s, SEC_ALLOC))
- return false;
-
- /* The .rela.bss section holds copy relocs. */
- if (! info->shared)
- {
- s = bfd_make_section (abfd, ".rela.bss");
- if (s == NULL
- || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY)
- || ! bfd_set_section_alignment (abfd, s, 2))
- return false;
- }
-
- return true;
-}
-
/* Look through the relocs for a section during the first phase, and
allocate space in the global offset table or procedure linkage
table. */
const Elf_Internal_Rela *rel_end;
asection *sgot;
asection *srelgot;
- asection *splt;
- asection *srelplt;
asection *sreloc;
if (info->relocateable)
sgot = NULL;
srelgot = NULL;
- splt = NULL;
- srelplt = NULL;
sreloc = NULL;
rel_end = relocs + sec->reloc_count;
for (rel = relocs; rel < rel_end; rel++)
{
- long r_symndx;
+ unsigned long r_symndx;
struct elf_link_hash_entry *h;
r_symndx = ELF32_R_SYM (rel->r_info);
else
h = sym_hashes[r_symndx - symtab_hdr->sh_info];
- /* Some relocs require a global offset table. FIXME: If this is
- a static link, we don't really need to create the full
- dynamic linking information. */
- if (dynobj == NULL)
- {
- switch (ELF32_R_TYPE (rel->r_info))
- {
- case R_SPARC_GOT10:
- case R_SPARC_GOT13:
- case R_SPARC_GOT22:
- case R_SPARC_WPLT30:
- elf_hash_table (info)->dynobj = dynobj = abfd;
- if (! bfd_elf32_link_create_dynamic_sections (dynobj, info))
- return false;
- break;
-
- default:
- break;
- }
- }
-
switch (ELF32_R_TYPE (rel->r_info))
{
case R_SPARC_GOT10:
case R_SPARC_GOT22:
/* This symbol requires a global offset table entry. */
+ if (dynobj == NULL)
+ {
+ /* Create the .got section. */
+ elf_hash_table (info)->dynobj = dynobj = abfd;
+ if (! _bfd_elf_create_got_section (dynobj, info))
+ return false;
+ }
+
if (sgot == NULL)
{
sgot = bfd_get_section_by_name (dynobj, ".got");
+ BFD_ASSERT (sgot != NULL);
+ }
+
+ if (srelgot == NULL
+ && (h != NULL || info->shared))
+ {
srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
if (srelgot == NULL)
{
| SEC_LOAD
| SEC_HAS_CONTENTS
| SEC_IN_MEMORY
- | SEC_READONLY)))
+ | SEC_LINKER_CREATED
+ | SEC_READONLY))
+ || ! bfd_set_section_alignment (dynobj, srelgot, 2))
return false;
}
- BFD_ASSERT (sgot != NULL && srelgot != NULL);
}
if (h != NULL)
{
- if (h->got_offset != (bfd_vma) -1)
+ if (h->got.offset != (bfd_vma) -1)
{
/* We have already allocated space in the .got. */
break;
}
- h->got_offset = sgot->_raw_size;
+ h->got.offset = sgot->_raw_size;
+
+ /* Make sure this symbol is output as a dynamic symbol. */
+ if (h->dynindx == -1)
+ {
+ if (! bfd_elf32_link_record_dynamic_symbol (info, h))
+ return false;
+ }
+
+ srelgot->_raw_size += sizeof (Elf32_External_Rela);
}
else
{
if (local_got_offsets == NULL)
{
size_t size;
- register int i;
+ register unsigned int i;
size = symtab_hdr->sh_info * sizeof (bfd_vma);
local_got_offsets = (bfd_vma *) bfd_alloc (abfd, size);
if (local_got_offsets == NULL)
- {
- bfd_set_error (bfd_error_no_memory);
- return false;
- }
+ return false;
elf_local_got_offsets (abfd) = local_got_offsets;
for (i = 0; i < symtab_hdr->sh_info; i++)
local_got_offsets[i] = (bfd_vma) -1;
break;
}
local_got_offsets[r_symndx] = sgot->_raw_size;
+
+ if (info->shared)
+ {
+ /* If we are generating a shared object, we need to
+ output a R_SPARC_RELATIVE reloc so that the
+ dynamic linker can adjust this GOT entry. */
+ srelgot->_raw_size += sizeof (Elf32_External_Rela);
+ }
}
sgot->_raw_size += 4;
- srelgot->_raw_size += sizeof (Elf32_External_Rela);
+
+ /* If the .got section is more than 0x1000 bytes, we add
+ 0x1000 to the value of _GLOBAL_OFFSET_TABLE_, so that 13
+ bit relocations have a greater chance of working. */
+ if (sgot->_raw_size >= 0x1000
+ && elf_hash_table (info)->hgot->root.u.def.value == 0)
+ elf_hash_table (info)->hgot->root.u.def.value = 0x1000;
break;
case R_SPARC_WPLT30:
- /* This symbol requires a procedure linkage table entry. */
+ /* This symbol requires a procedure linkage table entry. We
+ actually build the entry in adjust_dynamic_symbol,
+ because this might be a case of linking PIC code without
+ linking in any dynamic objects, in which case we don't
+ need to generate a procedure linkage table after all. */
if (h == NULL)
{
- /* It does not make sense to have a procedure linkage
- table entry for a local symbol. */
- bfd_set_error (bfd_error_bad_value);
- return false;
- }
-
- if (h->plt_offset != (bfd_vma) -1)
- {
- /* There is already an entry for this symbol in the
- procedure linkage table. */
+ /* The Solaris native assembler will generate a WPLT30
+ reloc for a local symbol if you assemble a call from
+ one section to another when using -K pic. We treat
+ it as WDISP30. */
break;
}
- if (splt == NULL)
- {
- splt = bfd_get_section_by_name (dynobj, ".plt");
- srelplt = bfd_get_section_by_name (dynobj, ".rela.plt");
- BFD_ASSERT (splt != NULL && srelplt != NULL);
- }
-
- /* The procedure linkage table has a maximum size. */
- if (splt->_raw_size >= 0x400000)
+ /* Make sure this symbol is output as a dynamic symbol. */
+ if (h->dynindx == -1)
{
- bfd_set_error (bfd_error_bad_value);
- return false;
+ if (! bfd_elf32_link_record_dynamic_symbol (info, h))
+ return false;
}
- h->plt_offset = splt->_raw_size;
-
- /* Make room for this entry. */
- splt->_raw_size += PLT_ENTRY_SIZE;
- srelplt->_raw_size += sizeof (Elf32_External_Rela);
+ h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
break;
&& strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
break;
/* Fall through. */
- case R_SPARC_8:
- case R_SPARC_16:
- case R_SPARC_32:
case R_SPARC_DISP8:
case R_SPARC_DISP16:
case R_SPARC_DISP32:
case R_SPARC_WDISP30:
case R_SPARC_WDISP22:
+ case R_SPARC_WDISP19:
+ case R_SPARC_WDISP16:
+ /* If we are linking with -Bsymbolic, we do not need to copy
+ a PC relative reloc against a global symbol which is
+ defined in an object we are including in the link (i.e.,
+ DEF_REGULAR is set). FIXME: At this point we have not
+ seen all the input files, so it is possible that
+ DEF_REGULAR is not set now but will be set later (it is
+ never cleared). This needs to be handled as in
+ elf32-i386.c. */
+ if (h == NULL
+ || (info->symbolic
+ && (h->elf_link_hash_flags
+ & ELF_LINK_HASH_DEF_REGULAR) != 0))
+ break;
+ /* Fall through. */
+ case R_SPARC_8:
+ case R_SPARC_16:
+ case R_SPARC_32:
case R_SPARC_HI22:
case R_SPARC_22:
case R_SPARC_13:
case R_SPARC_LO10:
case R_SPARC_UA32:
- if (info->shared
- && (sec->flags & SEC_ALLOC) != 0)
+ if (info->shared)
{
/* When creating a shared object, we must copy these
relocs into the output file. We create a reloc
{
const char *name;
- name = (elf_string_from_elf_section
+ name = (bfd_elf_string_from_elf_section
(abfd,
elf_elfheader (abfd)->e_shstrndx,
elf_section_data (sec)->rel_hdr.sh_name));
sreloc = bfd_get_section_by_name (dynobj, name);
if (sreloc == NULL)
{
+ flagword flags;
+
sreloc = bfd_make_section (dynobj, name);
+ flags = (SEC_HAS_CONTENTS | SEC_READONLY
+ | SEC_IN_MEMORY | SEC_LINKER_CREATED);
+ if ((sec->flags & SEC_ALLOC) != 0)
+ flags |= SEC_ALLOC | SEC_LOAD;
if (sreloc == NULL
- || ! bfd_set_section_flags (dynobj, sreloc,
- (SEC_ALLOC
- | SEC_LOAD
- | SEC_HAS_CONTENTS
- | SEC_IN_MEMORY
- | SEC_READONLY))
+ || ! bfd_set_section_flags (dynobj, sreloc, flags)
|| ! bfd_set_section_alignment (dynobj, sreloc, 2))
return false;
}
break;
+ case R_SPARC_GNU_VTINHERIT:
+ if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
+ return false;
+ break;
+
+ case R_SPARC_GNU_VTENTRY:
+ if (!_bfd_elf32_gc_record_vtentry (abfd, sec, h, rel->r_addend))
+ return false;
+ break;
+
default:
break;
}
return true;
}
+static asection *
+elf32_sparc_gc_mark_hook (abfd, info, rel, h, sym)
+ bfd *abfd;
+ struct bfd_link_info *info ATTRIBUTE_UNUSED;
+ Elf_Internal_Rela *rel;
+ struct elf_link_hash_entry *h;
+ Elf_Internal_Sym *sym;
+{
+
+ if (h != NULL)
+ {
+ switch (ELF32_R_TYPE (rel->r_info))
+ {
+ case R_SPARC_GNU_VTINHERIT:
+ case R_SPARC_GNU_VTENTRY:
+ break;
+
+ default:
+ switch (h->root.type)
+ {
+ case bfd_link_hash_defined:
+ case bfd_link_hash_defweak:
+ return h->root.u.def.section;
+
+ case bfd_link_hash_common:
+ return h->root.u.c.p->section;
+
+ default:
+ break;
+ }
+ }
+ }
+ else
+ {
+ if (!(elf_bad_symtab (abfd)
+ && ELF_ST_BIND (sym->st_info) != STB_LOCAL)
+ && ! ((sym->st_shndx <= 0 || sym->st_shndx >= SHN_LORESERVE)
+ && sym->st_shndx != SHN_COMMON))
+ {
+ return bfd_section_from_elf_index (abfd, sym->st_shndx);
+ }
+ }
+
+ return NULL;
+}
+
+/* Update the got entry reference counts for the section being removed. */
+static boolean
+elf32_sparc_gc_sweep_hook (abfd, info, sec, relocs)
+ bfd *abfd;
+ struct bfd_link_info *info ATTRIBUTE_UNUSED;
+ asection *sec;
+ const Elf_Internal_Rela *relocs;
+{
+
+ Elf_Internal_Shdr *symtab_hdr;
+ struct elf_link_hash_entry **sym_hashes;
+ bfd_signed_vma *local_got_refcounts;
+ const Elf_Internal_Rela *rel, *relend;
+ unsigned long r_symndx;
+ struct elf_link_hash_entry *h;
+
+ symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
+ sym_hashes = elf_sym_hashes (abfd);
+ local_got_refcounts = elf_local_got_refcounts (abfd);
+
+ relend = relocs + sec->reloc_count;
+ for (rel = relocs; rel < relend; rel++)
+ switch (ELF32_R_TYPE (rel->r_info))
+ {
+ case R_SPARC_GOT10:
+ case R_SPARC_GOT13:
+ case R_SPARC_GOT22:
+ r_symndx = ELF32_R_SYM (rel->r_info);
+ if (r_symndx >= symtab_hdr->sh_info)
+ {
+ h = sym_hashes[r_symndx - symtab_hdr->sh_info];
+ if (h->got.refcount > 0)
+ h->got.refcount--;
+ }
+ else
+ {
+ if (local_got_refcounts[r_symndx] > 0)
+ local_got_refcounts[r_symndx]--;
+ }
+ break;
+
+ case R_SPARC_PLT32:
+ case R_SPARC_HIPLT22:
+ case R_SPARC_LOPLT10:
+ case R_SPARC_PCPLT32:
+ case R_SPARC_PCPLT10:
+ r_symndx = ELF32_R_SYM (rel->r_info);
+ if (r_symndx >= symtab_hdr->sh_info)
+ {
+ h = sym_hashes[r_symndx - symtab_hdr->sh_info];
+ if (h->plt.refcount > 0)
+ h->plt.refcount--;
+ }
+ break;
+
+ default:
+ break;
+ }
+
+ return true;
+}
+
/* Adjust a symbol defined by a dynamic object and referenced by a
regular object. The current definition is in some section of the
dynamic object, but we're not including those sections. We have to
/* Make sure we know what is going on here. */
BFD_ASSERT (dynobj != NULL
- && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0
- && (h->elf_link_hash_flags & ELF_LINK_HASH_REF_REGULAR) != 0
- && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0
- && h->root.type == bfd_link_hash_defined
- && (bfd_get_flavour (h->root.u.def.section->owner)
- == bfd_target_elf_flavour)
- && (elf_elfheader (h->root.u.def.section->owner)->e_type
- == ET_DYN)
- && h->root.u.def.section->output_section == NULL);
+ && ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT)
+ || h->weakdef != NULL
+ || ((h->elf_link_hash_flags
+ & ELF_LINK_HASH_DEF_DYNAMIC) != 0
+ && (h->elf_link_hash_flags
+ & ELF_LINK_HASH_REF_REGULAR) != 0
+ && (h->elf_link_hash_flags
+ & ELF_LINK_HASH_DEF_REGULAR) == 0)));
/* If this is a function, put it in the procedure linkage table. We
will fill in the contents of the procedure linkage table later
- (although we could actually do it here). */
- if (h->type == STT_FUNC)
+ (although we could actually do it here). The STT_NOTYPE
+ condition is a hack specifically for the Oracle libraries
+ delivered for Solaris; for some inexplicable reason, they define
+ some of their functions as STT_NOTYPE when they really should be
+ STT_FUNC. */
+ if (h->type == STT_FUNC
+ || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0
+ || (h->type == STT_NOTYPE
+ && (h->root.type == bfd_link_hash_defined
+ || h->root.type == bfd_link_hash_defweak)
+ && (h->root.u.def.section->flags & SEC_CODE) != 0))
{
- if (h->plt_offset == (bfd_vma) -1)
+ if (! elf_hash_table (info)->dynamic_sections_created
+ || ((!info->shared || info->symbolic || h->dynindx == -1)
+ && (h->elf_link_hash_flags
+ & ELF_LINK_HASH_DEF_REGULAR) != 0))
{
- s = bfd_get_section_by_name (dynobj, ".plt");
- BFD_ASSERT (s != NULL);
+ /* This case can occur if we saw a WPLT30 reloc in an input
+ file, but none of the input files were dynamic objects.
+ Or, when linking the main application or a -Bsymbolic
+ shared library against PIC code. Or when a global symbol
+ has been made private, e.g. via versioning.
+
+ In these cases we know what value the symbol will resolve
+ to, so we don't actually need to build a procedure linkage
+ table, and we can just do a WDISP30 reloc instead. */
+
+ h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
+ return true;
+ }
- /* The procedure linkage table has a maximum size. */
- if (s->_raw_size >= 0x400000)
- {
- bfd_set_error (bfd_error_bad_value);
- return false;
- }
+ s = bfd_get_section_by_name (dynobj, ".plt");
+ BFD_ASSERT (s != NULL);
- /* Set the symbol to this location in the .plt. */
- h->root.u.def.section = s;
- h->root.u.def.value = s->_raw_size;
+ /* The first four entries in .plt are reserved. */
+ if (s->_raw_size == 0)
+ s->_raw_size = 4 * PLT_ENTRY_SIZE;
- h->plt_offset = s->_raw_size;
+ /* The procedure linkage table has a maximum size. */
+ if (s->_raw_size >= 0x400000)
+ {
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
- /* Make room for this entry. */
- s->_raw_size += PLT_ENTRY_SIZE;
+ /* If this symbol is not defined in a regular file, and we are
+ not generating a shared library, then set the symbol to this
+ location in the .plt. This is required to make function
+ pointers compare as equal between the normal executable and
+ the shared library. */
+ if (! info->shared
+ && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
+ {
+ h->root.u.def.section = s;
+ h->root.u.def.value = s->_raw_size;
+ }
- /* We also need to make an entry in the .rela.plt section. */
+ h->plt.offset = s->_raw_size;
- s = bfd_get_section_by_name (dynobj, ".rela.plt");
- BFD_ASSERT (s != NULL);
- s->_raw_size += sizeof (Elf32_External_Rela);
- }
+ /* Make room for this entry. */
+ s->_raw_size += PLT_ENTRY_SIZE;
+
+ /* We also need to make an entry in the .rela.plt section. */
+
+ s = bfd_get_section_by_name (dynobj, ".rela.plt");
+ BFD_ASSERT (s != NULL);
+ s->_raw_size += sizeof (Elf32_External_Rela);
return true;
}
real definition first, and we can just use the same value. */
if (h->weakdef != NULL)
{
- BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined);
+ BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined
+ || h->weakdef->root.type == bfd_link_hash_defweak);
h->root.u.def.section = h->weakdef->root.u.def.section;
h->root.u.def.value = h->weakdef->root.u.def.value;
return true;
s = bfd_get_section_by_name (dynobj, ".dynbss");
BFD_ASSERT (s != NULL);
- /* If the symbol is currently defined in the .bss section of the
- dynamic object, then it is OK to simply initialize it to zero.
- If the symbol is in some other section, we must generate a
- R_SPARC_COPY reloc to tell the dynamic linker to copy the initial
- value out of the dynamic object and into the runtime process
- image. We need to remember the offset into the .rel.bss section
- we are going to use. */
- if ((h->root.u.def.section->flags & SEC_LOAD) != 0)
+ /* We must generate a R_SPARC_COPY reloc to tell the dynamic linker
+ to copy the initial value out of the dynamic object and into the
+ runtime process image. We need to remember the offset into the
+ .rel.bss section we are going to use. */
+ if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
{
asection *srel;
bfd *dynobj;
asection *s;
boolean reltext;
+ boolean relplt;
dynobj = elf_hash_table (info)->dynobj;
BFD_ASSERT (dynobj != NULL);
- /* Set the contents of the .interp section to the interpreter. */
- if (! info->shared)
+ if (elf_hash_table (info)->dynamic_sections_created)
{
- s = bfd_get_section_by_name (dynobj, ".interp");
+ /* Set the contents of the .interp section to the interpreter. */
+ if (! info->shared)
+ {
+ s = bfd_get_section_by_name (dynobj, ".interp");
+ BFD_ASSERT (s != NULL);
+ s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER;
+ s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
+ }
+
+ /* Make space for the trailing nop in .plt. */
+ s = bfd_get_section_by_name (dynobj, ".plt");
BFD_ASSERT (s != NULL);
- s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER;
- s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
+ if (s->_raw_size > 0)
+ s->_raw_size += 4;
+ }
+ else
+ {
+ /* We may have created entries in the .rela.got section.
+ However, if we are not creating the dynamic sections, we will
+ not actually use these entries. Reset the size of .rela.got,
+ which will cause it to get stripped from the output file
+ below. */
+ s = bfd_get_section_by_name (dynobj, ".rela.got");
+ if (s != NULL)
+ s->_raw_size = 0;
}
-
- /* Make space for the trailing nop in .plt. */
- s = bfd_get_section_by_name (dynobj, ".plt");
- BFD_ASSERT (s != NULL);
- s->_raw_size += 4;
/* The check_relocs and adjust_dynamic_symbol entry points have
determined the sizes of the various dynamic sections. Allocate
memory for them. */
reltext = false;
+ relplt = false;
for (s = dynobj->sections; s != NULL; s = s->next)
{
const char *name;
+ boolean strip;
- if ((s->flags & SEC_IN_MEMORY) == 0)
+ if ((s->flags & SEC_LINKER_CREATED) == 0)
continue;
/* It's OK to base decisions on the section name, because none
of the dynobj section names depend upon the input files. */
name = bfd_get_section_name (dynobj, s);
- if (strncmp (name, ".rela", 5) == 0
- && s->_raw_size > 0)
+ strip = false;
+
+ if (strncmp (name, ".rela", 5) == 0)
{
- asection *target;
-
- /* If this relocation section applies to a read only
- section, then we probably need a DT_TEXTREL entry. */
- target = bfd_get_section_by_name (output_bfd, name + 5);
- if (target != NULL
- && (target->flags & SEC_READONLY) != 0)
- reltext = true;
-
- /* We use the reloc_count field as a counter if we need to
- copy relocs into the output file. */
- s->reloc_count = 0;
+ if (s->_raw_size == 0)
+ {
+ /* If we don't need this section, strip it from the
+ output file. This is to handle .rela.bss and
+ .rel.plt. We must create it in
+ create_dynamic_sections, because it must be created
+ before the linker maps input sections to output
+ sections. The linker does that before
+ adjust_dynamic_symbol is called, and it is that
+ function which decides whether anything needs to go
+ into these sections. */
+ strip = true;
+ }
+ else
+ {
+ const char *outname;
+ asection *target;
+
+ /* If this relocation section applies to a read only
+ section, then we probably need a DT_TEXTREL entry. */
+ outname = bfd_get_section_name (output_bfd,
+ s->output_section);
+ target = bfd_get_section_by_name (output_bfd, outname + 5);
+ if (target != NULL
+ && (target->flags & SEC_READONLY) != 0
+ && (target->flags & SEC_ALLOC) != 0)
+ reltext = true;
+
+ if (strcmp (name, ".rela.plt") == 0)
+ relplt = true;
+
+ /* We use the reloc_count field as a counter if we need
+ to copy relocs into the output file. */
+ s->reloc_count = 0;
+ }
}
else if (strcmp (name, ".plt") != 0
&& strcmp (name, ".got") != 0)
/* It's not one of our sections, so don't allocate space. */
continue;
}
-
- /* Allocate memory for the section contents. */
- s->contents = (bfd_byte *) bfd_alloc (dynobj, s->_raw_size);
- if (s->contents == NULL && s->_raw_size != 0)
+
+ if (strip)
{
- bfd_set_error (bfd_error_no_memory);
- return false;
+ _bfd_strip_section_from_output (s);
+ continue;
}
- }
- /* Add some entries to the .dynamic section. We fill in the values
- later, in elf32_sparc_finish_dynamic_sections, but we must add
- the entries now so that we get the correct size for the .dynamic
- section. The DT_DEBUG entry is filled in by the dynamic linker
- and used by the debugger. */
- if (! info->shared)
- {
- if (! bfd_elf32_add_dynamic_entry (info, DT_DEBUG, 0))
+ /* Allocate memory for the section contents. */
+ s->contents = (bfd_byte *) bfd_alloc (dynobj, s->_raw_size);
+ if (s->contents == NULL && s->_raw_size != 0)
return false;
}
- if (! bfd_elf32_add_dynamic_entry (info, DT_PLTGOT, 0)
- || ! bfd_elf32_add_dynamic_entry (info, DT_PLTRELSZ, 0)
- || ! bfd_elf32_add_dynamic_entry (info, DT_PLTREL, DT_RELA)
- || ! bfd_elf32_add_dynamic_entry (info, DT_JMPREL, 0)
- || ! bfd_elf32_add_dynamic_entry (info, DT_RELA, 0)
- || ! bfd_elf32_add_dynamic_entry (info, DT_RELASZ, 0)
- || ! bfd_elf32_add_dynamic_entry (info, DT_RELAENT,
- sizeof (Elf32_External_Rela)))
- return false;
-
- if (reltext)
+ if (elf_hash_table (info)->dynamic_sections_created)
{
- if (! bfd_elf32_add_dynamic_entry (info, DT_TEXTREL, 0))
+ /* Add some entries to the .dynamic section. We fill in the
+ values later, in elf32_sparc_finish_dynamic_sections, but we
+ must add the entries now so that we get the correct size for
+ the .dynamic section. The DT_DEBUG entry is filled in by the
+ dynamic linker and used by the debugger. */
+ if (! info->shared)
+ {
+ if (! bfd_elf32_add_dynamic_entry (info, DT_DEBUG, 0))
+ return false;
+ }
+
+ if (relplt)
+ {
+ if (! bfd_elf32_add_dynamic_entry (info, DT_PLTGOT, 0)
+ || ! bfd_elf32_add_dynamic_entry (info, DT_PLTRELSZ, 0)
+ || ! bfd_elf32_add_dynamic_entry (info, DT_PLTREL, DT_RELA)
+ || ! bfd_elf32_add_dynamic_entry (info, DT_JMPREL, 0))
+ return false;
+ }
+
+ if (! bfd_elf32_add_dynamic_entry (info, DT_RELA, 0)
+ || ! bfd_elf32_add_dynamic_entry (info, DT_RELASZ, 0)
+ || ! bfd_elf32_add_dynamic_entry (info, DT_RELAENT,
+ sizeof (Elf32_External_Rela)))
return false;
+
+ if (reltext)
+ {
+ if (! bfd_elf32_add_dynamic_entry (info, DT_TEXTREL, 0))
+ return false;
+ }
}
return true;
static boolean
elf32_sparc_relocate_section (output_bfd, info, input_bfd, input_section,
- contents, relocs, local_syms, local_sections,
- output_names)
+ contents, relocs, local_syms, local_sections)
bfd *output_bfd;
struct bfd_link_info *info;
bfd *input_bfd;
Elf_Internal_Rela *relocs;
Elf_Internal_Sym *local_syms;
asection **local_sections;
- char *output_names;
{
bfd *dynobj;
Elf_Internal_Shdr *symtab_hdr;
struct elf_link_hash_entry **sym_hashes;
bfd_vma *local_got_offsets;
+ bfd_vma got_base;
asection *sgot;
asection *splt;
asection *sreloc;
sym_hashes = elf_sym_hashes (input_bfd);
local_got_offsets = elf_local_got_offsets (input_bfd);
+ if (elf_hash_table (info)->hgot == NULL)
+ got_base = 0;
+ else
+ got_base = elf_hash_table (info)->hgot->root.u.def.value;
+
sgot = NULL;
splt = NULL;
sreloc = NULL;
for (; rel < relend; rel++)
{
int r_type;
- const reloc_howto_type *howto;
- long r_symndx;
+ reloc_howto_type *howto;
+ unsigned long r_symndx;
struct elf_link_hash_entry *h;
Elf_Internal_Sym *sym;
asection *sec;
bfd_reloc_status_type r;
r_type = ELF32_R_TYPE (rel->r_info);
- if (r_type < 0 || r_type >= (int) R_SPARC_max)
+
+ if (r_type == R_SPARC_GNU_VTINHERIT
+ || r_type == R_SPARC_GNU_VTENTRY)
+ continue;
+
+ if (r_type < 0 || r_type >= (int) R_SPARC_max_std)
{
bfd_set_error (bfd_error_bad_value);
return false;
}
- howto = elf_sparc_howto_table + r_type;
+ howto = _bfd_sparc_elf_howto_table + r_type;
r_symndx = ELF32_R_SYM (rel->r_info);
else
{
h = sym_hashes[r_symndx - symtab_hdr->sh_info];
- if (h->root.type == bfd_link_hash_defined)
+ while (h->root.type == bfd_link_hash_indirect
+ || h->root.type == bfd_link_hash_warning)
+ h = (struct elf_link_hash_entry *) h->root.u.i.link;
+ if (h->root.type == bfd_link_hash_defined
+ || h->root.type == bfd_link_hash_defweak)
{
sec = h->root.u.def.section;
- relocation = (h->root.u.def.value
- + sec->output_section->vma
- + sec->output_offset);
+ if ((r_type == R_SPARC_WPLT30
+ && h->plt.offset != (bfd_vma) -1)
+ || ((r_type == R_SPARC_GOT10
+ || r_type == R_SPARC_GOT13
+ || r_type == R_SPARC_GOT22)
+ && elf_hash_table (info)->dynamic_sections_created
+ && (! info->shared
+ || (! info->symbolic && h->dynindx != -1)
+ || (h->elf_link_hash_flags
+ & ELF_LINK_HASH_DEF_REGULAR) == 0))
+ || (info->shared
+ && ((! info->symbolic && h->dynindx != -1)
+ || (h->elf_link_hash_flags
+ & ELF_LINK_HASH_DEF_REGULAR) == 0)
+ && (r_type == R_SPARC_8
+ || r_type == R_SPARC_16
+ || r_type == R_SPARC_32
+ || r_type == R_SPARC_DISP8
+ || r_type == R_SPARC_DISP16
+ || r_type == R_SPARC_DISP32
+ || r_type == R_SPARC_WDISP30
+ || r_type == R_SPARC_WDISP22
+ || r_type == R_SPARC_WDISP19
+ || r_type == R_SPARC_WDISP16
+ || r_type == R_SPARC_HI22
+ || r_type == R_SPARC_22
+ || r_type == R_SPARC_13
+ || r_type == R_SPARC_LO10
+ || r_type == R_SPARC_UA32
+ || ((r_type == R_SPARC_PC10
+ || r_type == R_SPARC_PC22)
+ && strcmp (h->root.root.string,
+ "_GLOBAL_OFFSET_TABLE_") != 0))))
+ {
+ /* In these cases, we don't need the relocation
+ value. We check specially because in some
+ obscure cases sec->output_section will be NULL. */
+ relocation = 0;
+ }
+ else
+ relocation = (h->root.u.def.value
+ + sec->output_section->vma
+ + sec->output_offset);
}
- else if (h->root.type == bfd_link_hash_weak)
+ else if (h->root.type == bfd_link_hash_undefweak)
relocation = 0;
- else if (info->shared)
+ else if (info->shared && !info->symbolic && !info->no_undefined)
relocation = 0;
else
{
if (h != NULL)
{
- BFD_ASSERT (h->got_offset != (bfd_vma) -1);
- relocation = sgot->output_offset + h->got_offset;
+ bfd_vma off;
+
+ off = h->got.offset;
+ BFD_ASSERT (off != (bfd_vma) -1);
+
+ if (! elf_hash_table (info)->dynamic_sections_created
+ || (info->shared
+ && (info->symbolic || h->dynindx == -1)
+ && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)))
+ {
+ /* This is actually a static link, or it is a
+ -Bsymbolic link and the symbol is defined
+ locally, or the symbol was forced to be local
+ because of a version file. We must initialize
+ this entry in the global offset table. Since the
+ offset must always be a multiple of 4, we use the
+ least significant bit to record whether we have
+ initialized it already.
+
+ When doing a dynamic link, we create a .rela.got
+ relocation entry to initialize the value. This
+ is done in the finish_dynamic_symbol routine. */
+ if ((off & 1) != 0)
+ off &= ~1;
+ else
+ {
+ bfd_put_32 (output_bfd, relocation,
+ sgot->contents + off);
+ h->got.offset |= 1;
+ }
+ }
+
+ relocation = sgot->output_offset + off - got_base;
}
else
{
off = local_got_offsets[r_symndx];
/* The offset must always be a multiple of 4. We use
- the least significant bit to record whether we have
- already generated the necessary reloc. */
+ the least significant bit to record whether we have
+ already processed this entry. */
if ((off & 1) != 0)
off &= ~1;
else
{
- asection *srelgot;
- Elf_Internal_Rela outrel;
-
bfd_put_32 (output_bfd, relocation, sgot->contents + off);
- srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
- BFD_ASSERT (srelgot != NULL);
-
- outrel.r_offset = (sgot->output_section->vma
- + sgot->output_offset
- + off);
- outrel.r_info = ELF32_R_INFO (0, R_SPARC_RELATIVE);
- outrel.r_addend = 0;
- bfd_elf32_swap_reloca_out (output_bfd, &outrel,
- (((Elf32_External_Rela *)
- srelgot->contents)
- + srelgot->reloc_count));
- ++srelgot->reloc_count;
+ if (info->shared)
+ {
+ asection *srelgot;
+ Elf_Internal_Rela outrel;
+
+ /* We need to generate a R_SPARC_RELATIVE reloc
+ for the dynamic linker. */
+ srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
+ BFD_ASSERT (srelgot != NULL);
+
+ outrel.r_offset = (sgot->output_section->vma
+ + sgot->output_offset
+ + off);
+ outrel.r_info = ELF32_R_INFO (0, R_SPARC_RELATIVE);
+ outrel.r_addend = 0;
+ bfd_elf32_swap_reloca_out (output_bfd, &outrel,
+ (((Elf32_External_Rela *)
+ srelgot->contents)
+ + srelgot->reloc_count));
+ ++srelgot->reloc_count;
+ }
local_got_offsets[r_symndx] |= 1;
}
- relocation = sgot->output_offset + off;
+ relocation = sgot->output_offset + off - got_base;
}
break;
case R_SPARC_WPLT30:
/* Relocation is to the entry for this symbol in the
procedure linkage table. */
+
+ /* The Solaris native assembler will generate a WPLT30 reloc
+ for a local symbol if you assemble a call from one
+ section to another when using -K pic. We treat it as
+ WDISP30. */
+ if (h == NULL)
+ break;
+
+ if (h->plt.offset == (bfd_vma) -1)
+ {
+ /* We didn't make a PLT entry for this symbol. This
+ happens when statically linking PIC code, or when
+ using -Bsymbolic. */
+ break;
+ }
+
if (splt == NULL)
{
splt = bfd_get_section_by_name (dynobj, ".plt");
BFD_ASSERT (splt != NULL);
}
- BFD_ASSERT (h != NULL && h->plt_offset != (bfd_vma) -1);
relocation = (splt->output_section->vma
+ splt->output_offset
- + h->plt_offset);
+ + h->plt.offset);
break;
case R_SPARC_PC10:
&& strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
break;
/* Fall through. */
- case R_SPARC_8:
- case R_SPARC_16:
- case R_SPARC_32:
case R_SPARC_DISP8:
case R_SPARC_DISP16:
case R_SPARC_DISP32:
case R_SPARC_WDISP30:
case R_SPARC_WDISP22:
+ case R_SPARC_WDISP19:
+ case R_SPARC_WDISP16:
+ if (h == NULL
+ || (info->symbolic
+ && (h->elf_link_hash_flags
+ & ELF_LINK_HASH_DEF_REGULAR) != 0))
+ break;
+ /* Fall through. */
+ case R_SPARC_8:
+ case R_SPARC_16:
+ case R_SPARC_32:
case R_SPARC_HI22:
case R_SPARC_22:
case R_SPARC_13:
case R_SPARC_LO10:
case R_SPARC_UA32:
- if (info->shared
- && (input_section->flags & SEC_ALLOC) != 0)
+ if (info->shared)
{
Elf_Internal_Rela outrel;
+ boolean skip;
/* When generating a shared object, these relocations
are copied into the output file to be resolved at run
{
const char *name;
- name = (elf_string_from_elf_section
+ name = (bfd_elf_string_from_elf_section
(input_bfd,
elf_elfheader (input_bfd)->e_shstrndx,
elf_section_data (input_section)->rel_hdr.sh_name));
BFD_ASSERT (sreloc != NULL);
}
- outrel.r_offset = (rel->r_offset
- + input_section->output_section->vma
- + input_section->output_offset);
- if (h != NULL)
+ skip = false;
+
+ if (elf_section_data (input_section)->stab_info == NULL)
+ outrel.r_offset = rel->r_offset;
+ else
{
- BFD_ASSERT (h->dynindx != (bfd_vma) -1);
+ bfd_vma off;
+
+ off = (_bfd_stab_section_offset
+ (output_bfd, &elf_hash_table (info)->stab_info,
+ input_section,
+ &elf_section_data (input_section)->stab_info,
+ rel->r_offset));
+ if (off == (bfd_vma) -1)
+ skip = true;
+ outrel.r_offset = off;
+ }
+
+ outrel.r_offset += (input_section->output_section->vma
+ + input_section->output_offset);
+
+ if (skip)
+ memset (&outrel, 0, sizeof outrel);
+ /* h->dynindx may be -1 if the symbol was marked to
+ become local. */
+ else if (h != NULL
+ && ((! info->symbolic && h->dynindx != -1)
+ || (h->elf_link_hash_flags
+ & ELF_LINK_HASH_DEF_REGULAR) == 0))
+ {
+ BFD_ASSERT (h->dynindx != -1);
outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
- outrel.r_addend = 0;
+ outrel.r_addend = rel->r_addend;
}
else
{
- long indx;
-
- sym = local_syms + r_symndx;
-
- /* If this isn't a section symbol, we need to map it
- to something that is going to be put into the
- dynamic symbols. The case will probably never
- arise. */
- BFD_ASSERT (ELF_ST_TYPE (sym->st_info) == STT_SECTION);
-
- sec = local_sections[r_symndx];
- if (sec != NULL && bfd_is_abs_section (sec))
- indx = 0;
- else if (sec == NULL || sec->owner == NULL)
+ if (r_type == R_SPARC_32)
{
- bfd_set_error (bfd_error_bad_value);
- return false;
+ outrel.r_info = ELF32_R_INFO (0, R_SPARC_RELATIVE);
+ outrel.r_addend = relocation + rel->r_addend;
}
else
{
- indx = sec->output_section->target_index;
- if (indx == 0)
- abort ();
+ long indx;
+
+ if (h == NULL)
+ sec = local_sections[r_symndx];
+ else
+ {
+ BFD_ASSERT (h->root.type == bfd_link_hash_defined
+ || (h->root.type
+ == bfd_link_hash_defweak));
+ sec = h->root.u.def.section;
+ }
+ if (sec != NULL && bfd_is_abs_section (sec))
+ indx = 0;
+ else if (sec == NULL || sec->owner == NULL)
+ {
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+ else
+ {
+ asection *osec;
+
+ osec = sec->output_section;
+ indx = elf_section_data (osec)->dynindx;
+
+ /* FIXME: we really should be able to link non-pic
+ shared libraries. */
+ if (indx == 0)
+ {
+ BFD_FAIL ();
+ (*_bfd_error_handler)
+ (_("%s: probably compiled without -fPIC?"),
+ bfd_get_filename (input_bfd));
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+ }
+
+ outrel.r_info = ELF32_R_INFO (indx, r_type);
+ outrel.r_addend = relocation + rel->r_addend;
}
-
- outrel.r_info = ELF32_R_INFO (indx, r_type);
- outrel.r_addend = sec->output_offset + sym->st_value;
}
bfd_elf32_swap_reloca_out (output_bfd, &outrel,
++sreloc->reloc_count;
/* This reloc will be computed at runtime, so there's no
- need to do anything now. */
- continue;
+ need to do anything now, unless this is a RELATIVE
+ reloc in an unallocated section. */
+ if (skip
+ || (input_section->flags & SEC_ALLOC) != 0
+ || ELF32_R_TYPE (outrel.r_info) != R_SPARC_RELATIVE)
+ continue;
}
+ break;
default:
break;
- }
+ }
+
+ if (r_type == R_SPARC_WDISP16)
+ {
+ bfd_vma x;
+
+ relocation += rel->r_addend;
+ relocation -= (input_section->output_section->vma
+ + input_section->output_offset);
+ relocation -= rel->r_offset;
+
+ x = bfd_get_32 (input_bfd, contents + rel->r_offset);
+ x |= ((((relocation >> 2) & 0xc000) << 6)
+ | ((relocation >> 2) & 0x3fff));
+ bfd_put_32 (input_bfd, x, contents + rel->r_offset);
+
+ if ((bfd_signed_vma) relocation < - 0x40000
+ || (bfd_signed_vma) relocation > 0x3ffff)
+ r = bfd_reloc_overflow;
+ else
+ r = bfd_reloc_ok;
+ }
+ else if (r_type == R_SPARC_REV32)
+ {
+ bfd_vma x;
+
+ relocation = relocation + rel->r_addend;
+
+ x = bfd_get_32 (input_bfd, contents + rel->r_offset);
+ x = x + relocation;
+ bfd_putl32 (/*input_bfd,*/ x, contents + rel->r_offset);
+ r = bfd_reloc_ok;
+ }
+ else
+ r = _bfd_final_link_relocate (howto, input_bfd, input_section,
+ contents, rel->r_offset,
+ relocation, rel->r_addend);
- r = _bfd_final_link_relocate (howto, input_bfd, input_section,
- contents, rel->r_offset,
- relocation, rel->r_addend);
if (r != bfd_reloc_ok)
{
name = h->root.root.string;
else
{
- name = output_names + sym->st_name;
+ name = bfd_elf_string_from_elf_section (input_bfd,
+ symtab_hdr->sh_link,
+ sym->st_name);
if (name == NULL)
return false;
if (*name == '\0')
dynobj = elf_hash_table (info)->dynobj;
- if (h->plt_offset != (bfd_vma) -1)
+ if (h->plt.offset != (bfd_vma) -1)
{
asection *splt;
asection *srela;
/* Fill in the entry in the procedure linkage table. */
bfd_put_32 (output_bfd,
- PLT_ENTRY_WORD0 + h->plt_offset,
- splt->contents + h->plt_offset);
+ PLT_ENTRY_WORD0 + h->plt.offset,
+ splt->contents + h->plt.offset);
bfd_put_32 (output_bfd,
(PLT_ENTRY_WORD1
- + (((- (h->plt_offset + 4)) >> 2) & 0x3fffff)),
- splt->contents + h->plt_offset + 4);
+ + (((- (h->plt.offset + 4)) >> 2) & 0x3fffff)),
+ splt->contents + h->plt.offset + 4);
bfd_put_32 (output_bfd, PLT_ENTRY_WORD2,
- splt->contents + h->plt_offset + 8);
+ splt->contents + h->plt.offset + 8);
/* Fill in the entry in the .rela.plt section. */
rela.r_offset = (splt->output_section->vma
+ splt->output_offset
- + h->plt_offset);
+ + h->plt.offset);
rela.r_info = ELF32_R_INFO (h->dynindx, R_SPARC_JMP_SLOT);
rela.r_addend = 0;
bfd_elf32_swap_reloca_out (output_bfd, &rela,
((Elf32_External_Rela *) srela->contents
- + h->plt_offset / PLT_ENTRY_SIZE - 4));
+ + h->plt.offset / PLT_ENTRY_SIZE - 4));
if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
{
}
}
- if (h->got_offset != (bfd_vma) -1)
+ if (h->got.offset != (bfd_vma) -1)
{
asection *sgot;
asection *srela;
/* This symbol has an entry in the global offset table. Set it
up. */
- BFD_ASSERT (h->dynindx != -1);
-
sgot = bfd_get_section_by_name (dynobj, ".got");
srela = bfd_get_section_by_name (dynobj, ".rela.got");
BFD_ASSERT (sgot != NULL && srela != NULL);
- bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got_offset);
-
rela.r_offset = (sgot->output_section->vma
+ sgot->output_offset
- + h->got_offset);
- rela.r_info = ELF32_R_INFO (h->dynindx, R_SPARC_GLOB_DAT);
+ + (h->got.offset &~ 1));
+
+ /* If this is a -Bsymbolic link, and the symbol is defined
+ locally, we just want to emit a RELATIVE reloc. Likewise if
+ the symbol was forced to be local because of a version file.
+ The entry in the global offset table will already have been
+ initialized in the relocate_section function. */
+ if (info->shared
+ && (info->symbolic || h->dynindx == -1)
+ && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR))
+ rela.r_info = ELF32_R_INFO (0, R_SPARC_RELATIVE);
+ else
+ {
+ bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
+ rela.r_info = ELF32_R_INFO (h->dynindx, R_SPARC_GLOB_DAT);
+ }
+
rela.r_addend = 0;
bfd_elf32_swap_reloca_out (output_bfd, &rela,
((Elf32_External_Rela *) srela->contents
struct bfd_link_info *info;
{
bfd *dynobj;
- asection *splt;
- asection *sgot;
asection *sdyn;
- Elf32_External_Dyn *dyncon, *dynconend;
+ asection *sgot;
dynobj = elf_hash_table (info)->dynobj;
- splt = bfd_get_section_by_name (dynobj, ".plt");
- sgot = bfd_get_section_by_name (dynobj, ".got");
sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
- BFD_ASSERT (splt != NULL && sgot != NULL && sdyn != NULL);
- dyncon = (Elf32_External_Dyn *) sdyn->contents;
- dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->_raw_size);
- for (; dyncon < dynconend; dyncon++)
+ if (elf_hash_table (info)->dynamic_sections_created)
{
- Elf_Internal_Dyn dyn;
- const char *name;
- boolean size;
+ asection *splt;
+ Elf32_External_Dyn *dyncon, *dynconend;
- bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
+ splt = bfd_get_section_by_name (dynobj, ".plt");
+ BFD_ASSERT (splt != NULL && sdyn != NULL);
- switch (dyn.d_tag)
+ dyncon = (Elf32_External_Dyn *) sdyn->contents;
+ dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->_raw_size);
+ for (; dyncon < dynconend; dyncon++)
{
- case DT_PLTGOT: name = ".plt"; size = false; break;
- case DT_PLTRELSZ: name = ".rela.plt"; size = true; break;
- case DT_JMPREL: name = ".rela.plt"; size = false; break;
- default: name = NULL; size = false; break;
- }
+ Elf_Internal_Dyn dyn;
+ const char *name;
+ boolean size;
- if (name != NULL)
- {
- asection *s;
+ bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
- s = bfd_get_section_by_name (output_bfd, name);
- BFD_ASSERT (s != NULL);
- if (! size)
- dyn.d_un.d_ptr = s->vma;
- else
+ switch (dyn.d_tag)
+ {
+ case DT_PLTGOT: name = ".plt"; size = false; break;
+ case DT_PLTRELSZ: name = ".rela.plt"; size = true; break;
+ case DT_JMPREL: name = ".rela.plt"; size = false; break;
+ default: name = NULL; size = false; break;
+ }
+
+ if (name != NULL)
{
- if (s->_cooked_size != 0)
- dyn.d_un.d_val = s->_cooked_size;
+ asection *s;
+
+ s = bfd_get_section_by_name (output_bfd, name);
+ if (s == NULL)
+ dyn.d_un.d_val = 0;
else
- dyn.d_un.d_val = s->_raw_size;
+ {
+ if (! size)
+ dyn.d_un.d_ptr = s->vma;
+ else
+ {
+ if (s->_cooked_size != 0)
+ dyn.d_un.d_val = s->_cooked_size;
+ else
+ dyn.d_un.d_val = s->_raw_size;
+ }
+ }
+ bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
}
- bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
}
- }
- /* Clear the first four entries in the procedure linkage table, and
- put a nop in the last four bytes. */
- if (splt->_raw_size > 0)
- {
- memset (splt->contents, 0, 4 * PLT_ENTRY_SIZE);
- bfd_put_32 (output_bfd, SPARC_NOP,
- splt->contents + splt->_raw_size - 4);
+ /* Clear the first four entries in the procedure linkage table,
+ and put a nop in the last four bytes. */
+ if (splt->_raw_size > 0)
+ {
+ memset (splt->contents, 0, 4 * PLT_ENTRY_SIZE);
+ bfd_put_32 (output_bfd, SPARC_NOP,
+ splt->contents + splt->_raw_size - 4);
+ }
+
+ elf_section_data (splt->output_section)->this_hdr.sh_entsize =
+ PLT_ENTRY_SIZE;
}
/* Set the first entry in the global offset table to the address of
the dynamic section. */
+ sgot = bfd_get_section_by_name (dynobj, ".got");
+ BFD_ASSERT (sgot != NULL);
if (sgot->_raw_size > 0)
- bfd_put_32 (output_bfd,
- sdyn->output_section->vma + sdyn->output_offset,
- sgot->contents);
+ {
+ if (sdyn == NULL)
+ bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
+ else
+ bfd_put_32 (output_bfd,
+ sdyn->output_section->vma + sdyn->output_offset,
+ sgot->contents);
+ }
elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
- elf_section_data (splt->output_section)->this_hdr.sh_entsize =
- PLT_ENTRY_SIZE;
return true;
}
+\f
+/* Functions for dealing with the e_flags field.
+
+ We don't define set_private_flags or copy_private_bfd_data because
+ the only currently defined values are based on the bfd mach number,
+ so we use the latter instead and defer setting e_flags until the
+ file is written out. */
+
+/* Merge backend specific data from an object file to the output
+ object file when linking. */
+
+static boolean
+elf32_sparc_merge_private_bfd_data (ibfd, obfd)
+ bfd *ibfd;
+ bfd *obfd;
+{
+ boolean error;
+ /* FIXME: This should not be static. */
+ static unsigned long previous_ibfd_e_flags = (unsigned long) -1;
+
+ if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
+ || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
+ return true;
+ error = false;
+
+#if 0
+ /* ??? The native linker doesn't do this so we can't (otherwise gcc would
+ have to know which linker is being used). Instead, the native linker
+ bumps up the architecture level when it has to. However, I still think
+ warnings like these are good, so it would be nice to have them turned on
+ by some option. */
+
+ /* If the output machine is normal sparc, we can't allow v9 input files. */
+ if (bfd_get_mach (obfd) == bfd_mach_sparc
+ && (bfd_get_mach (ibfd) == bfd_mach_sparc_v8plus
+ || bfd_get_mach (ibfd) == bfd_mach_sparc_v8plusa))
+ {
+ error = true;
+ (*_bfd_error_handler)
+ (_("%s: compiled for a v8plus system and target is v8"),
+ bfd_get_filename (ibfd));
+ }
+ /* If the output machine is v9, we can't allow v9+vis input files. */
+ if (bfd_get_mach (obfd) == bfd_mach_sparc_v8plus
+ && bfd_get_mach (ibfd) == bfd_mach_sparc_v8plusa)
+ {
+ error = true;
+ (*_bfd_error_handler)
+ (_("%s: compiled for a v8plusa system and target is v8plus"),
+ bfd_get_filename (ibfd));
+ }
+#else
+ if (bfd_get_mach (ibfd) >= bfd_mach_sparc_v9)
+ {
+ error = true;
+ (*_bfd_error_handler)
+ (_("%s: compiled for a 64 bit system and target is 32 bit"),
+ bfd_get_filename (ibfd));
+ }
+ else if (bfd_get_mach (obfd) < bfd_get_mach (ibfd))
+ bfd_set_arch_mach (obfd, bfd_arch_sparc, bfd_get_mach (ibfd));
+#endif
+
+ if (((elf_elfheader (ibfd)->e_flags & EF_SPARC_LEDATA)
+ != previous_ibfd_e_flags)
+ && previous_ibfd_e_flags != (unsigned long) -1)
+ {
+ (*_bfd_error_handler)
+ (_("%s: linking little endian files with big endian files"),
+ bfd_get_filename (ibfd));
+ error = true;
+ }
+ previous_ibfd_e_flags = elf_elfheader (ibfd)->e_flags & EF_SPARC_LEDATA;
+
+ if (error)
+ {
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+
+ return true;
+}
+\f
+/* Set the right machine number. */
+
+static boolean
+elf32_sparc_object_p (abfd)
+ bfd *abfd;
+{
+ if (elf_elfheader (abfd)->e_machine == EM_SPARC32PLUS)
+ {
+ if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1)
+ return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
+ bfd_mach_sparc_v8plusa);
+ else if (elf_elfheader (abfd)->e_flags & EF_SPARC_32PLUS)
+ return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
+ bfd_mach_sparc_v8plus);
+ else
+ return false;
+ }
+ else if (elf_elfheader (abfd)->e_flags & EF_SPARC_LEDATA)
+ return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
+ bfd_mach_sparc_sparclite_le);
+ else
+ return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, bfd_mach_sparc);
+}
+
+/* The final processing done just before writing out the object file.
+ We need to set the e_machine field appropriately. */
+
+static void
+elf32_sparc_final_write_processing (abfd, linker)
+ bfd *abfd;
+ boolean linker ATTRIBUTE_UNUSED;
+{
+ switch (bfd_get_mach (abfd))
+ {
+ case bfd_mach_sparc :
+ break; /* nothing to do */
+ case bfd_mach_sparc_v8plus :
+ elf_elfheader (abfd)->e_machine = EM_SPARC32PLUS;
+ elf_elfheader (abfd)->e_flags &=~ EF_SPARC_32PLUS_MASK;
+ elf_elfheader (abfd)->e_flags |= EF_SPARC_32PLUS;
+ break;
+ case bfd_mach_sparc_v8plusa :
+ elf_elfheader (abfd)->e_machine = EM_SPARC32PLUS;
+ elf_elfheader (abfd)->e_flags &=~ EF_SPARC_32PLUS_MASK;
+ elf_elfheader (abfd)->e_flags |= EF_SPARC_32PLUS | EF_SPARC_SUN_US1;
+ break;
+ case bfd_mach_sparc_sparclite_le :
+ elf_elfheader (abfd)->e_machine = EM_SPARC;
+ elf_elfheader (abfd)->e_flags |= EF_SPARC_LEDATA;
+ break;
+ default :
+ abort ();
+ break;
+ }
+}
+\f
#define TARGET_BIG_SYM bfd_elf32_sparc_vec
#define TARGET_BIG_NAME "elf32-sparc"
#define ELF_ARCH bfd_arch_sparc
#define ELF_MACHINE_CODE EM_SPARC
+#define ELF_MACHINE_ALT1 EM_SPARC32PLUS
#define ELF_MAXPAGESIZE 0x10000
+
+#define bfd_elf32_bfd_reloc_type_lookup elf32_sparc_reloc_type_lookup
+#define elf_info_to_howto elf32_sparc_info_to_howto
#define elf_backend_create_dynamic_sections \
- elf32_sparc_create_dynamic_sections
+ _bfd_elf_create_dynamic_sections
#define elf_backend_check_relocs elf32_sparc_check_relocs
#define elf_backend_adjust_dynamic_symbol \
elf32_sparc_adjust_dynamic_symbol
elf32_sparc_finish_dynamic_symbol
#define elf_backend_finish_dynamic_sections \
elf32_sparc_finish_dynamic_sections
+#define bfd_elf32_bfd_merge_private_bfd_data \
+ elf32_sparc_merge_private_bfd_data
+#define elf_backend_object_p elf32_sparc_object_p
+#define elf_backend_final_write_processing \
+ elf32_sparc_final_write_processing
+#define elf_backend_gc_mark_hook elf32_sparc_gc_mark_hook
+#define elf_backend_gc_sweep_hook elf32_sparc_gc_sweep_hook
+
+#define elf_backend_can_gc_sections 1
+#define elf_backend_want_got_plt 0
+#define elf_backend_plt_readonly 0
+#define elf_backend_want_plt_sym 1
+#define elf_backend_got_header_size 4
+#define elf_backend_plt_header_size (4*PLT_ENTRY_SIZE)
#include "elf32-target.h"
projects / deliverable / binutils-gdb.git / blobdiff