/* SPARC-specific support for 32-bit ELF
- Copyright (C) 1993, 1994, 1995, 1996 Free Software Foundation, Inc.
+ Copyright (C) 1993, 1994, 1995, 1996, 1997 Free Software Foundation, Inc.
This file is part of BFD, the Binary File Descriptor library.
#include "elf-bfd.h"
#include "elf/sparc.h"
-static reloc_howto_type *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_check_relocs
PARAMS ((bfd *, struct bfd_link_info *, asection *,
PARAMS ((bfd *));
static void elf32_sparc_final_write_processing
PARAMS ((bfd *, boolean));
-
-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[] =
+\f
+/* The howto table and associated functions.
+ ??? elf64-sparc.c has its own copy for the moment to ease transition
+ since some of the relocation values have changed. At some point we'll
+ want elf64-sparc.c to switch over and use this table.
+ ??? Do we want to recognize (or flag as errors) some of the 64 bit entries
+ if the target is elf32-sparc.
+*/
+
+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 **));
+
+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),
+ /* ??? If we need to handle R_SPARC_64 then we need (figuratively)
+ --enable-64-bit-bfd. That causes objdump to print address as 64 bits
+ which we really don't want on an elf32-sparc system. There may be other
+ consequences which we may not want (at least not until it's proven they're
+ necessary) so for now these are only enabled ifdef BFD64. */
+#ifdef BFD64
+ HOWTO(R_SPARC_64, 0,4,00,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_64", false,0,~ (bfd_vma) 0, true),
+ /* ??? These don't make sense except in 64 bit systems so they're disabled
+ ifndef BFD64 too (for now). */
+ HOWTO(R_SPARC_OLO10, 0,2,10,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_OLO10", false,0,0x000003ff,true),
+ HOWTO(R_SPARC_HH22, 42,2,22,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HH22", false,0,0x003fffff,true),
+ HOWTO(R_SPARC_HM10, 32,2,10,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HM10", false,0,0x000003ff,true),
+ HOWTO(R_SPARC_LM22, 10,2,22,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LM22", false,0,0x003fffff,true),
+ HOWTO(R_SPARC_PC_HH22, 42,2,22,true, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HH22", false,0,0x003fffff,true),
+ HOWTO(R_SPARC_PC_HM10, 32,2,10,true, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HM10", false,0,0x000003ff,true),
+ HOWTO(R_SPARC_PC_LM22, 10,2,22,true, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LM22", false,0,0x003fffff,true),
+#else
+ 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),
#endif
-
-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_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_WDISP16, 2,2,16,true, 0,complain_overflow_signed, sparc_elf_wdisp16_reloc,"R_SPARC_WDISP16", false,0,0x00000000,true),
+ HOWTO(R_SPARC_WDISP19, 2,2,22,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),
};
struct elf_reloc_map {
{ BFD_RELOC_16, R_SPARC_16, },
{ BFD_RELOC_8, R_SPARC_8 },
{ BFD_RELOC_8_PCREL, R_SPARC_DISP8 },
+ /* ??? This might cause us to need separate functions in elf{32,64}-sparc.c
+ (we could still have just one table), but is this reloc ever used? */
{ BFD_RELOC_CTOR, R_SPARC_32 }, /* @@ Assumes 32 bits. */
{ BFD_RELOC_32, R_SPARC_32 },
{ BFD_RELOC_32_PCREL, R_SPARC_DISP32 },
{ 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},
};
static reloc_howto_type *
-bfd_elf32_bfd_reloc_type_lookup (abfd, code)
+elf32_sparc_reloc_type_lookup (abfd, code)
bfd *abfd;
bfd_reloc_code_real_type code;
{
for (i = 0; i < sizeof (sparc_reloc_map) / sizeof (struct elf_reloc_map); i++)
{
if (sparc_reloc_map[i].bfd_reloc_val == code)
- return &elf_sparc_howto_table[(int) sparc_reloc_map[i].elf_reloc_val];
+ return &_bfd_sparc_elf_howto_table[(int) sparc_reloc_map[i].elf_reloc_val];
}
return 0;
}
+/* 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)
+elf32_sparc_info_to_howto (abfd, cache_ptr, dst)
bfd *abfd;
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)];
+ 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;
+ arelent *reloc_entry;
+ asymbol *symbol;
+ PTR data;
+ asection *input_section;
+ bfd *output_bfd;
+ char **error_message;
+{
+ 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;
+{
+ 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. */
| SEC_LOAD
| SEC_HAS_CONTENTS
| SEC_IN_MEMORY
+ | SEC_LINKER_CREATED
| SEC_READONLY))
|| ! bfd_set_section_alignment (dynobj, srelgot, 2))
return false;
sgot->_raw_size += 4;
+ /* 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:
case R_SPARC_DISP32:
case R_SPARC_WDISP30:
case R_SPARC_WDISP22:
+ case R_SPARC_WDISP19:
+ case R_SPARC_WDISP16:
if (h == NULL)
break;
/* Fall through. */
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
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;
}
/* 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). */
+ (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->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 (! elf_hash_table (info)->dynamic_sections_created)
{
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;
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
}
else
{
+ const char *outname;
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);
+ 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_READONLY) != 0
+ && (target->flags & SEC_ALLOC) != 0)
reltext = true;
if (strcmp (name, ".rela.plt") == 0)
return false;
}
- if (! bfd_elf32_add_dynamic_entry (info, DT_PLTGOT, 0))
- return false;
-
if (relplt)
{
- if (! bfd_elf32_add_dynamic_entry (info, DT_PLTRELSZ, 0)
+ 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 we are generating a shared library, we generate a section
- symbol for each output section. These are local symbols, which
- means that they must come first in the dynamic symbol table.
- That means we must increment the dynamic symbol index of every
- other dynamic symbol. */
+ symbol for each output section for which we might need to copy
+ relocs. These are local symbols, which means that they must come
+ first in the dynamic symbol table. That means we must increment
+ the dynamic symbol index of every other dynamic symbol. */
if (info->shared)
{
- int c, i;
+ int c;
- c = bfd_count_sections (output_bfd);
- elf_link_hash_traverse (elf_hash_table (info),
- elf32_sparc_adjust_dynindx,
- (PTR) &c);
- elf_hash_table (info)->dynsymcount += c;
-
- for (i = 1, s = output_bfd->sections; s != NULL; s = s->next, i++)
+ c = 0;
+ for (s = output_bfd->sections; s != NULL; s = s->next)
{
- elf_section_data (s)->dynindx = i;
+ if ((s->flags & SEC_LINKER_CREATED) != 0
+ || (s->flags & SEC_ALLOC) == 0)
+ continue;
+
+ elf_section_data (s)->dynindx = c + 1;
+
/* These symbols will have no names, so we don't need to
fiddle with dynstr_index. */
+
+ ++c;
}
+
+ elf_link_hash_traverse (elf_hash_table (info),
+ elf32_sparc_adjust_dynindx,
+ (PTR) &c);
+ elf_hash_table (info)->dynsymcount += c;
}
return true;
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;
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];
+ 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)
{
|| r_type == R_SPARC_GOT22)
&& elf_hash_table (info)->dynamic_sections_created
&& (! info->shared
- || ! info->symbolic
+ || (! info->symbolic && h->dynindx != -1)
|| (h->elf_link_hash_flags
& ELF_LINK_HASH_DEF_REGULAR) == 0))
|| (info->shared
- && (! info->symbolic
+ && ((! info->symbolic && h->dynindx != -1)
|| (h->elf_link_hash_flags
& ELF_LINK_HASH_DEF_REGULAR) == 0)
- && (input_section->flags & SEC_ALLOC) != 0
&& (r_type == R_SPARC_8
|| r_type == R_SPARC_16
|| r_type == R_SPARC_32
|| 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
if (! elf_hash_table (info)->dynamic_sections_created
|| (info->shared
- && info->symbolic
+ && (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. 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
+ 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 = sgot->output_offset + off;
+ relocation = sgot->output_offset + off - got_base;
}
else
{
local_got_offsets[r_symndx] |= 1;
}
- relocation = sgot->output_offset + off;
+ relocation = sgot->output_offset + off - got_base;
}
break;
case R_SPARC_DISP32:
case R_SPARC_WDISP30:
case R_SPARC_WDISP22:
+ case R_SPARC_WDISP19:
+ case R_SPARC_WDISP16:
if (h == NULL)
break;
/* Fall through. */
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
BFD_ASSERT (sreloc != NULL);
}
- outrel.r_offset = (rel->r_offset
- + input_section->output_section->vma
- + input_section->output_offset);
- if (h != NULL
- && (! info->symbolic
- || (h->elf_link_hash_flags
- & ELF_LINK_HASH_DEF_REGULAR) == 0))
+ skip = false;
+
+ if (elf_section_data (input_section)->stab_info == NULL)
+ outrel.r_offset = rel->r_offset;
+ else
+ {
+ 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);
++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)
+ r = _bfd_final_link_relocate (howto, input_bfd, input_section,
+ contents, rel->r_offset,
+ relocation, rel->r_addend);
+ else
+ {
+ bfd_vma x;
+
+ relocation += rel->r_addend;
+ relocation -= (input_section->output_section->vma
+ + input_section->output_offset);
+ relocation -= rel->r_offset;
- r = _bfd_final_link_relocate (howto, input_bfd, input_section,
- contents, rel->r_offset,
- relocation, rel->r_addend);
+ 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;
+ }
if (r != bfd_reloc_ok)
{
/* 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);
+ (h->got_offset &~ 1));
/* If this is a -Bsymbolic link, and the symbol is defined
- locally, we just want to emit a RELATIVE reloc. The entry in
- the global offset table will already have been initialized in
- the relocate_section function. */
+ 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
+ && (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
asection *sdynsym;
asection *s;
Elf_Internal_Sym sym;
+ int c;
/* Set up the section symbols for the output sections. */
sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_SECTION);
sym.st_other = 0;
+ c = 0;
for (s = output_bfd->sections; s != NULL; s = s->next)
{
int indx;
+ if (elf_section_data (s)->dynindx == 0)
+ continue;
+
sym.st_value = s->vma;
indx = elf_section_data (s)->this_idx;
(PTR) (((Elf32_External_Sym *)
sdynsym->contents)
+ elf_section_data (s)->dynindx));
+
+ ++c;
}
/* Set the sh_info field of the output .dynsym section to the
index of the first global symbol. */
- elf_section_data (sdynsym->output_section)->this_hdr.sh_info =
- bfd_count_sections (output_bfd) + 1;
+ elf_section_data (sdynsym->output_section)->this_hdr.sh_info = c + 1;
}
return true;
{
boolean error;
- /* This function is selected based on the input vector. We only
- want to copy information over if the output BFD also uses Elf
- format. */
- if (bfd_get_flavour (obfd) != bfd_target_elf_flavour)
+ if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
+ || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
return true;
error = false;
#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 \
_bfd_elf_create_dynamic_sections
#define elf_backend_check_relocs elf32_sparc_check_relocs
projects / binutils-gdb.git / blobdiff