along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
-/* I wrote this file without the benefit of a PowerPC ELF ABI. Thus,
- it probably does not correspond to whatever people finally settle
- on. Ian Taylor. */
+/* This file is based on a preliminary PowerPC ELF ABI. The
+ information may not match the final PowerPC ELF ABI. It includes
+ suggestions from the in-progress Embedded PowerPC ABI, and that
+ information may also not match. */
#include "bfd.h"
#include "sysdep.h"
#include "libbfd.h"
#include "libelf.h"
-static bfd_reloc_status_type powerpc_elf_toc16_reloc PARAMS ((bfd *abfd,
- arelent *reloc,
- asymbol *symbol,
- PTR data,
- asection *sec,
- bfd *output_bfd,
- char **error));
-static bfd_reloc_status_type powerpc_elf_b26_reloc PARAMS ((bfd *abfd,
- arelent *reloc,
- asymbol *symbol,
- PTR data,
- asection *sec,
- bfd *output_bfd,
- char **error));
+static bfd_reloc_status_type ppc_elf_unsupported_reloc
+ PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
+static bfd_reloc_status_type ppc_elf_addr16_ha_reloc
+ PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
+static bfd_reloc_status_type ppc_elf_got16_reloc
+ PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
static const struct reloc_howto_struct *bfd_elf32_bfd_reloc_type_lookup
PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
-static void powerpc_info_to_howto_rel
- PARAMS ((bfd *abfd, arelent *cache_ptr, Elf32_Internal_Rel *dst));
+static void powerpc_info_to_howto
+ PARAMS ((bfd *abfd, arelent *cache_ptr, Elf32_Internal_Rela *dst));
-#define USE_REL
+#define USE_RELA
enum reloc_type
{
- R_POWERPC_NONE = 0,
- R_POWERPC_32,
- R_POWERPC_B26,
- R_POWERPC_BA26,
- R_POWERPC_TOC16,
- R_POWERPC_max
+ R_PPC_NONE = 0,
+ R_PPC_ADDR32,
+ R_PPC_ADDR24,
+ R_PPC_ADDR16,
+ R_PPC_ADDR16_LO,
+ R_PPC_ADDR16_HI,
+ R_PPC_ADDR16_HA,
+ R_PPC_ADDR14,
+ R_PPC_ADDR14_BRTAKEN,
+ R_PPC_ADDR14_BRNTAKEN,
+ R_PPC_REL24,
+ R_PPC_REL14,
+ R_PPC_REL14_BRTAKEN,
+ R_PPC_REL14_BRNTAKEN,
+ R_PPC_GOT16,
+ R_PPC_GOT16_LO,
+ R_PPC_GOT16_HI,
+ R_PPC_GOT16_HA,
+ R_PPC_PLT24,
+ R_PPC_COPY,
+ R_PPC_GLOB_DAT,
+ R_PPC_JMP_SLOT,
+ R_PPC_RELATIVE,
+ R_PPC_LOCAL24PC,
+ R_PPC_UADDR32,
+ R_PPC_UADDR16,
+
+ /* The remaining relocs are from the Embedded ELF ABI, and are not
+ in the SVR4 ELF ABI. */
+ R_PPC_CGOT16,
+ R_PPC_CGOT16_LO,
+ R_PPC_CGOT16_HI,
+ R_PPC_CGOT16_HA,
+ R_PPC_GOT_REG,
+ R_PPC_CGOT_REG,
+ R_PPC_NADDR16,
+ R_PPC_NADDR32,
+ R_PPC_NADDR24,
+ R_PPC_DISP16,
+ R_PPC_GOTRL16,
+ R_PPC_GOTRLA16,
+ R_PPC_CGOTRL16,
+ R_PPC_CGOTRLA16,
+ R_PPC_max
};
static reloc_howto_type elf_powerpc_howto_table[] =
{
- /* This relocation does not do anything. */
- HOWTO (R_POWERPC_NONE, /* type */
+ /* This reloc does nothing. */
+ HOWTO (R_PPC_NONE, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
- "R_POWERPC_NONE", /* name */
- true, /* partial_inplace */
+ "R_PPC_NONE", /* name */
+ false, /* partial_inplace */
0, /* src_mask */
0, /* dst_mask */
false), /* pcrel_offset */
- /* Standard 32 bit relocation. */
- HOWTO (R_POWERPC_32, /* type */
+ /* A standard 32 bit relocation. */
+ HOWTO (R_PPC_ADDR32, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
- "R_POWERPC_32", /* name */
- true, /* partial_inplace */
- 0xffffffff, /* src_mask */
- 0xffffffff, /* dst_mask */
+ "R_PPC_ADDR32", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffffffff, /* dst_mask */
false), /* pcrel_offset */
- /* 26 bit relative branch. */
- HOWTO (R_POWERPC_B26, /* type */
+ /* An absolute 26 bit branch; the lower two bits must be zero.
+ FIXME: we don't check that, we just clear them. */
+ HOWTO (R_PPC_ADDR24, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 26, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_PPC_ADDR24", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0x3fffffc, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* A standard 16 bit relocation. */
+ HOWTO (R_PPC_ADDR16, /* type */
+ 0, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_PPC_ADDR16", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* A 16 bit relocation without overflow. */
+ HOWTO (R_PPC_ADDR16_LO, /* type */
+ 0, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont,/* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_PPC_ADDR16_LO", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* The high order 16 bits of an address. */
+ HOWTO (R_PPC_ADDR16_HI, /* type */
+ 16, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_PPC_ADDR16_HI", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* The high order 16 bits of an address, plus 1 if the contents of
+ the low 16 bits, treated as a signed number, is negative. */
+ HOWTO (R_PPC_ADDR16_HA, /* type */
+ 16, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ ppc_elf_addr16_ha_reloc, /* special_function */
+ "R_PPC_ADDR16_HA", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* An absolute 16 bit branch; the lower two bits must be zero.
+ FIXME: we don't check that, we just clear them. */
+ HOWTO (R_PPC_ADDR14, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_PPC_ADDR14", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0xfffc, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* An absolute 16 bit branch, for which bit 10 should be set to
+ indicate that the branch is expected to be taken. The lower two
+ bits must be zero. */
+ HOWTO (R_PPC_ADDR14_BRTAKEN, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ ppc_elf_unsupported_reloc, /* special_function */
+ "R_PPC_ADDR14_BRTAKEN",/* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0xfffc, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* An absolute 16 bit branch, for which bit 10 should be set to
+ indicate that the branch is not expected to be taken. The lower
+ two bits must be zero. */
+ HOWTO (R_PPC_ADDR14_BRNTAKEN, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ ppc_elf_unsupported_reloc, /* special_function */
+ "R_PPC_ADDR14_BRNTAKEN",/* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0xfffc, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* A relative 26 bit branch; the lower two bits must be zero. */
+ HOWTO (R_PPC_REL24, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
26, /* bitsize */
true, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
- powerpc_elf_b26_reloc, /* special_function */
- "R_POWERPC_B26", /* name */
- true, /* partial_inplace */
- 0x3fffffc, /* src_mask */
- 0x3fffffc, /* dst_mask */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_PPC_REL24", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0x3fffffc, /* dst_mask */
+ true), /* pcrel_offset */
+
+ /* A relative 16 bit branch; the lower two bits must be zero. */
+ HOWTO (R_PPC_REL14, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ true, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_PPC_REL14", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0xfffc, /* dst_mask */
+ true), /* pcrel_offset */
+
+ /* A relative 16 bit branch. Bit 10 should be set to indicate that
+ the branch is expected to be taken. The lower two bits must be
+ zero. */
+ HOWTO (R_PPC_REL14_BRTAKEN, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ ppc_elf_unsupported_reloc, /* special_function */
+ "R_PPC_REL14_BRTAKEN", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0xfffc, /* dst_mask */
+ true), /* pcrel_offset */
+
+ /* A relative 16 bit branch. Bit 10 should be set to indicate that
+ the branch is not expected to be taken. The lower two bits must
+ be zero. */
+ HOWTO (R_PPC_REL14_BRNTAKEN, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ ppc_elf_unsupported_reloc, /* special_function */
+ "R_PPC_REL14_BRNTAKEN",/* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0xfffc, /* dst_mask */
+ true), /* pcrel_offset */
+
+ /* Like R_PPC_ADDR16, but referring to the GOT table entry for the
+ symbol. */
+ HOWTO (R_PPC_GOT16, /* type */
+ 0, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ ppc_elf_got16_reloc, /* special_function */
+ "R_PPC_GOT16", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* Like R_PPC_ADDR16_LO, but referring to the GOT table entry for
+ the symbol. */
+ HOWTO (R_PPC_GOT16_LO, /* type */
+ 0, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ ppc_elf_got16_reloc, /* special_function */
+ "R_PPC_GOT16_LO", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffff, /* dst_mask */
false), /* pcrel_offset */
- /* 26 bit absolute branch. */
- HOWTO (R_POWERPC_BA26, /* type */
+ /* Like R_PPC_ADDR16_HI, but referring to the GOT table entry for
+ the symbol. */
+ HOWTO (R_PPC_GOT16_HI, /* type */
+ 16, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ ppc_elf_got16_reloc, /* special_function */
+ "R_PPC_GOT16_HI", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* Like R_PPC_ADDR16_HA, but referring to the GOT table entry for
+ the symbol. FIXME: Not supported. */
+ HOWTO (R_PPC_GOT16_HA, /* type */
+ 0, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ ppc_elf_unsupported_reloc, /* special_function */
+ "R_PPC_GOT16_HA", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* Like R_PPC_REL24, but referring to the procedure linkage table
+ entry for the symbol. FIXME: Not supported. */
+ HOWTO (R_PPC_PLT24, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
26, /* bitsize */
+ true, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_PPC_PLT24", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0x3fffffc, /* dst_mask */
+ true), /* pcrel_offset */
+
+ /* This is used only by the dynamic linker. The symbol should exist
+ both in the object being run and in some shared library. The
+ dynamic linker copies the data addressed by the symbol from the
+ shared library into the object. I have no idea what the purpose
+ of this is. */
+ HOWTO (R_PPC_COPY, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_PPC_COPY", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* Like R_PPC_ADDR32, but used when setting global offset table
+ entries. */
+ HOWTO (R_PPC_GLOB_DAT, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
- "R_POWERPC_BA26", /* name */
- true, /* partial_inplace */
- 0x3fffffc, /* src_mask */
- 0x3fffffc, /* dst_mask */
+ "R_PPC_GLOB_DAT", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffffffff, /* dst_mask */
false), /* pcrel_offset */
-
- /* 16 bit reference to TOC section. */
- HOWTO (R_POWERPC_TOC16, /* type */
+
+ /* Marks a procedure linkage table entry for a symbol. */
+ HOWTO (R_PPC_JMP_SLOT, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_PPC_JMP_SLOT", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* Used only by the dynamic linker. When the object is run, this
+ longword is set to the load address of the object, plus the
+ addend. */
+ HOWTO (R_PPC_RELATIVE, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_PPC_RELATIVE", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* Like R_PPC_REL24, but uses the value of the symbol within the
+ object rather than the final value. Normally used for
+ _GLOBAL_OFFSET_TABLE_. FIXME: Not supported. */
+ HOWTO (R_PPC_LOCAL24PC, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 26, /* bitsize */
+ true, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ ppc_elf_unsupported_reloc, /* special_function */
+ "R_PPC_LOCAL24PC", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0x3fffffc, /* dst_mask */
+ true), /* pcrel_offset */
+
+ /* Like R_PPC_ADDR32, but may be unaligned. */
+ HOWTO (R_PPC_UADDR32, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_PPC_UADDR32", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* Like R_PPC_ADDR16, but may be unaligned. */
+ HOWTO (R_PPC_UADDR16, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
- complain_overflow_signed, /* complain_on_overflow */
- powerpc_elf_toc16_reloc, /* special_function */
- "R_POWERPC_TOC16", /* name */
- true, /* partial_inplace */
- 0xffff, /* src_mask */
- 0xffff, /* dst_mask */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_PPC_UADDR16", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* The remaining relocs are from the Embedded ELF ABI, and are not
+ in the SVR4 ELF ABI. */
+
+ /* Like R_PPC_GOT16, but using the constant GOT table. */
+ HOWTO (R_PPC_CGOT16, /* type */
+ 0, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ ppc_elf_got16_reloc, /* special_function */
+ "R_PPC_CGOT16", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* Like R_PPC_GOT16_LO, but using the constant GOT table. */
+ HOWTO (R_PPC_CGOT16_LO, /* type */
+ 0, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ ppc_elf_got16_reloc, /* special_function */
+ "R_PPC_CGOT16_LO", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* Like R_PPC_GOT16_HI, but using the constant GOT table. */
+ HOWTO (R_PPC_CGOT16_HI, /* type */
+ 16, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ ppc_elf_got16_reloc, /* special_function */
+ "R_PPC_CGOT16_HI", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* Like R_PPC_GOT16_HA, but using the constant GOT table. */
+ HOWTO (R_PPC_CGOT16_HA, /* type */
+ 0, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ ppc_elf_unsupported_reloc, /* special_function */
+ "R_PPC_CGOT16_HA", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* The dedicated GOT register. */
+ HOWTO (R_PPC_GOT_REG, /* type */
+ 0, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 5, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ ppc_elf_unsupported_reloc, /* special_function */
+ "R_PPC_GOT_REG", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0x1f, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* The dedicated CGOT register. */
+ HOWTO (R_PPC_CGOT_REG, /* type */
+ 0, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 5, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ ppc_elf_unsupported_reloc, /* special_function */
+ "R_PPC_CGOT_REG", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0x1f, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* Like R_PPC_ADDR16, but subtract the symbol. */
+ HOWTO (R_PPC_NADDR16, /* type */
+ 0, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ ppc_elf_unsupported_reloc, /* special_function */
+ "R_PPC_NADDR16", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* Like R_PPC_ADDR32, but subtract the symbol. */
+ HOWTO (R_PPC_NADDR32, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ ppc_elf_unsupported_reloc, /* special_function */
+ "R_PPC_NADDR32", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* Like R_PPC_ADDR24, but subtract the symbol. */
+ HOWTO (R_PPC_NADDR24, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 26, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ ppc_elf_unsupported_reloc, /* special_function */
+ "R_PPC_NADDR24", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0x3fffffc, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* Offset of symbol relative to containing csect. */
+ HOWTO (R_PPC_DISP16, /* type */
+ 0, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ ppc_elf_unsupported_reloc, /* special_function */
+ "R_PPC_DISP16", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* Like R_PPC_GOT16, but may be converted to an address computation
+ instead of a load. */
+ HOWTO (R_PPC_GOTRL16, /* type */
+ 0, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ ppc_elf_got16_reloc, /* special_function */
+ "R_PPC_GOTRL16", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* Like R_PPC_GOT16, but may be converted to a load instead of an
+ address computation. */
+ HOWTO (R_PPC_GOTRLA16, /* type */
+ 0, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ ppc_elf_got16_reloc, /* special_function */
+ "R_PPC_GOTRLA16", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* Like R_PPC_CGOT16, but may be converted to an address computation
+ instead of a load. */
+ HOWTO (R_PPC_CGOTRL16, /* type */
+ 0, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ ppc_elf_unsupported_reloc, /* special_function */
+ "R_PPC_CGOTRL16", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* Like R_PPC_CGOT16, but may be converted to a load instead of an
+ address computation. */
+ HOWTO (R_PPC_CGOTRLA16, /* type */
+ 0, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ ppc_elf_unsupported_reloc, /* special_function */
+ "R_PPC_CGOTRLA16", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffff, /* dst_mask */
false), /* pcrel_offset */
};
-/* Handle the TOC16 reloc. We want to use the offset within the .toc
- section, not the actual VMA. */
+/* Don't pretend we can deal with unsupported relocs. */
+/*ARGSUSED*/
static bfd_reloc_status_type
-powerpc_elf_toc16_reloc (abfd,
- reloc_entry,
- symbol,
- data,
- input_section,
- output_bfd,
- error_message)
+ppc_elf_unsupported_reloc (abfd, reloc_entry, symbol, data, input_section,
+ output_bfd, error_message)
bfd *abfd;
arelent *reloc_entry;
asymbol *symbol;
bfd *output_bfd;
char **error_message;
{
- asection *sec;
+ abort ();
+}
+
+/* Handle the ADDR16_HA reloc by adjusting the reloc addend. */
+
+static bfd_reloc_status_type
+ppc_elf_addr16_ha_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;
+
+ if (output_bfd != (bfd *) NULL)
+ return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
+ input_section, output_bfd, error_message);
+
+ if (bfd_is_com_section (symbol->section))
+ relocation = 0;
+ else
+ relocation = symbol->value;
+
+ relocation += (symbol->section->output_section->vma
+ + symbol->section->output_offset
+ + reloc_entry->addend);
+
+ if ((relocation & 0x8000) != 0)
+ reloc_entry->addend += 0x10000;
- /* Simply adjust the reloc addend by the negative of the VMA of the
- .toc section. */
- sec = bfd_get_section (*reloc_entry->sym_ptr_ptr);
- if (sec == &bfd_und_section)
- return bfd_reloc_continue;
- BFD_ASSERT (strcmp (bfd_get_section_name (abfd, sec), ".toc") == 0);
- reloc_entry->addend -= sec->output_section->vma;
return bfd_reloc_continue;
}
-/* Handle a branch. If the next instruction is the special
- instruction "cror 31,31,31", and this branch is to a stub routine
- we have created, we must change the cror instruction into an
- instruction which reloads the TOC register. We can detect a stub
- routine because it is in a BFD named "linker stubs". FIXME: What a
- hack. */
+/* Handle the GOT16 reloc. We want to use the offset within the .got
+ section, not the actual VMA. This is appropriate when generating
+ an embedded ELF object, for which the .got section acts like the
+ AIX .toc section. When and if we support PIC code, we will have to
+ change this, perhaps by switching off on the e_type field. */
static bfd_reloc_status_type
-powerpc_elf_b26_reloc (abfd,
- reloc_entry,
- symbol,
- data,
- input_section,
- output_bfd,
- error_message)
+ppc_elf_got16_reloc (abfd, reloc_entry, symbol, data, input_section,
+ output_bfd, error_message)
bfd *abfd;
arelent *reloc_entry;
asymbol *symbol;
bfd *output_bfd;
char **error_message;
{
- if (bfd_get_section (symbol) != &bfd_und_section
- && (strcmp (bfd_get_section (symbol)->owner->filename, "linker stubs")
- == 0))
- {
- bfd_vma val;
-
- /* This symbol is a stub created by the linker. */
- val = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address + 4);
- if (val == 0x4ffffb82) /* cror 31,31,31 */
- bfd_put_32 (abfd, (bfd_vma) 0x80410014, /* l r2,20(r1) */
- (bfd_byte *) data + reloc_entry->address + 4);
- }
+ asection *sec;
- if (output_bfd != (bfd *) NULL
- && bfd_get_section (symbol) == &bfd_und_section)
- {
- bfd_size_type address;
-
- /* If we are generating relocateable output, and the symbol is
- undefined, we just want to adjust the reloc by the amount the
- section moved. */
- address = reloc_entry->address;
- reloc_entry->address += input_section->output_offset;
- return _bfd_relocate_contents (reloc_entry->howto, abfd,
- - input_section->output_offset,
- (bfd_byte *) data + address);
- }
+ if (output_bfd != (bfd *) NULL)
+ return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
+ input_section, output_bfd, error_message);
- /* Otherwise, let bfd_perform_relocation handle it. */
+ sec = bfd_get_section (*reloc_entry->sym_ptr_ptr);
+ BFD_ASSERT (sec == &bfd_und_section
+ || strcmp (bfd_get_section_name (abfd, sec), ".got") == 0
+ || strcmp (bfd_get_section_name (abfd, sec), ".cgot") == 0);
+ reloc_entry->addend -= sec->output_section->vma;
return bfd_reloc_continue;
}
static const struct powerpc_reloc_map powerpc_reloc_map[] =
{
- { BFD_RELOC_NONE, R_POWERPC_NONE, },
- { BFD_RELOC_32, R_POWERPC_32 },
- { BFD_RELOC_CTOR, R_POWERPC_32 },
- { BFD_RELOC_PPC_B26, R_POWERPC_B26 },
- { BFD_RELOC_PPC_BA26, R_POWERPC_BA26 },
- { BFD_RELOC_PPC_TOC16, R_POWERPC_TOC16 }
+ { BFD_RELOC_NONE, R_PPC_NONE, },
+ { BFD_RELOC_32, R_PPC_ADDR32 },
+ { BFD_RELOC_CTOR, R_PPC_ADDR32 },
+ { BFD_RELOC_PPC_B26, R_PPC_REL24 },
+ { BFD_RELOC_PPC_BA26, R_PPC_ADDR24 },
+ { BFD_RELOC_PPC_TOC16, R_PPC_GOT16 }
};
static const struct reloc_howto_struct *
/* Set the howto pointer for a PowerPC ELF reloc. */
static void
-powerpc_info_to_howto_rel (abfd, cache_ptr, dst)
+powerpc_info_to_howto (abfd, cache_ptr, dst)
bfd *abfd;
arelent *cache_ptr;
- Elf32_Internal_Rel *dst;
+ Elf32_Internal_Rela *dst;
{
- BFD_ASSERT (ELF32_R_TYPE (dst->r_info) < (unsigned int) R_POWERPC_max);
- cache_ptr->howto = &elf_powerpc_howto_table[ELF32_R_TYPE(dst->r_info)];
+ BFD_ASSERT (ELF32_R_TYPE (dst->r_info) < (unsigned int) R_PPC_max);
+ cache_ptr->howto = &elf_powerpc_howto_table[ELF32_R_TYPE (dst->r_info)];
}
#define TARGET_BIG_SYM bfd_elf32_powerpc_vec
#define ELF_ARCH bfd_arch_powerpc
#define ELF_MACHINE_CODE EM_CYGNUS_POWERPC
#define ELF_MAXPAGESIZE 0x10000
-#define elf_info_to_howto 0
-#define elf_info_to_howto_rel powerpc_info_to_howto_rel
+#define elf_info_to_howto powerpc_info_to_howto
#include "elf32-target.h"
projects / binutils-gdb.git / commitdiff