/* Hitachi SH specific support for 32-bit ELF
- Copyright 1996, 97, 98, 1999, 2000 Free Software Foundation, Inc.
+ Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002
+ Free Software Foundation, Inc.
Contributed by Ian Lance Taylor, Cygnus Support.
This file is part of BFD, the Binary File Descriptor library.
PARAMS ((bfd *, bfd *));
static boolean sh_elf_merge_private_data
PARAMS ((bfd *, bfd *));
-boolean sh_elf_set_mach_from_flags
+static boolean sh_elf_set_mach_from_flags
PARAMS ((bfd *));
static boolean sh_elf_relax_section
PARAMS ((bfd *, asection *, struct bfd_link_info *, boolean *));
static bfd_byte *sh_elf_get_relocated_section_contents
PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_order *,
bfd_byte *, boolean, asymbol **));
+static boolean sh_elf_check_relocs
+ PARAMS ((bfd *, struct bfd_link_info *, asection *,
+ const Elf_Internal_Rela *));
+static struct bfd_hash_entry *sh_elf_link_hash_newfunc
+ PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
+static struct bfd_link_hash_table *sh_elf_link_hash_table_create
+ PARAMS ((bfd *));
+static boolean sh_elf_adjust_dynamic_symbol
+ PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *));
+static boolean sh_elf_size_dynamic_sections
+ PARAMS ((bfd *, struct bfd_link_info *));
+static boolean sh_elf_finish_dynamic_symbol
+ PARAMS ((bfd *, struct bfd_link_info *, struct elf_link_hash_entry *,
+ Elf_Internal_Sym *));
+static boolean sh_elf_finish_dynamic_sections
+ PARAMS ((bfd *, struct bfd_link_info *));
+static bfd_reloc_status_type sh_elf_reloc_loop
+ PARAMS ((int, bfd *, asection *, bfd_byte *, bfd_vma, asection *,
+ bfd_vma, bfd_vma));
+static boolean sh_elf_create_dynamic_sections
+ PARAMS ((bfd *, struct bfd_link_info *));
+static asection * sh_elf_gc_mark_hook
+ PARAMS ((asection *, struct bfd_link_info *, Elf_Internal_Rela *,
+ struct elf_link_hash_entry *, Elf_Internal_Sym *));
+static boolean sh_elf_gc_sweep_hook
+ PARAMS ((bfd *, struct bfd_link_info *, asection *,
+ const Elf_Internal_Rela *));
+static enum elf_reloc_type_class sh_elf_reloc_type_class
+ PARAMS ((const Elf_Internal_Rela *));
+#ifdef INCLUDE_SHMEDIA
+inline static void movi_shori_putval PARAMS ((bfd *, unsigned long, char *));
+#endif
+
+/* The name of the dynamic interpreter. This is put in the .interp
+ section. */
+
+#define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1"
static reloc_howto_type sh_elf_howto_table[] =
{
complain_overflow_signed, /* complain_on_overflow */
sh_elf_ignore_reloc, /* special_function */
"R_SH_REL32", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
+ true, /* partial_inplace */
+ 0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
true), /* pcrel_offset */
0xff, /* dst_mask */
true), /* pcrel_offset */
-};
+ EMPTY_HOWTO (38),
+ EMPTY_HOWTO (39),
+ EMPTY_HOWTO (40),
+ EMPTY_HOWTO (41),
+ EMPTY_HOWTO (42),
+ EMPTY_HOWTO (43),
+ EMPTY_HOWTO (44),
+
+#ifdef INCLUDE_SHMEDIA
+ /* Used in SHLLI.L and SHLRI.L. */
+ HOWTO (R_SH_DIR5U, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 5, /* bitsize */
+ false, /* pc_relative */
+ 10, /* bitpos */
+ complain_overflow_unsigned, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_SH_DIR5U", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0xfc00, /* dst_mask */
+ false), /* pcrel_offset */
-static bfd_reloc_status_type
-sh_elf_reloc_loop (r_type, input_bfd, input_section, contents, addr,
- symbol_section, start, end)
- int r_type;
- bfd *input_bfd;
- asection *input_section;
- bfd_byte *contents;
- bfd_vma addr;
- asection *symbol_section;
- bfd_vma start, end;
-{
- static bfd_vma last_addr;
- asection *last_symbol_section;
- bfd_byte *free_contents = NULL;
- bfd_byte *start_ptr, *ptr, *last_ptr;
- int diff, cum_diff;
- bfd_signed_vma x;
- int insn;
+ /* Used in SHARI, SHLLI et al. */
+ HOWTO (R_SH_DIR6U, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 6, /* bitsize */
+ false, /* pc_relative */
+ 10, /* bitpos */
+ complain_overflow_unsigned, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_SH_DIR6U", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0xfc00, /* dst_mask */
+ false), /* pcrel_offset */
- /* Sanity check the address. */
- if (addr > input_section->_raw_size)
- return bfd_reloc_outofrange;
+ /* Used in BxxI, LDHI.L et al. */
+ HOWTO (R_SH_DIR6S, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 6, /* bitsize */
+ false, /* pc_relative */
+ 10, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_SH_DIR6S", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0xfc00, /* dst_mask */
+ false), /* pcrel_offset */
- /* We require the start and end relocations to be processed consecutively -
- although we allow then to be processed forwards or backwards. */
- if (! last_addr)
- {
- last_addr = addr;
- last_symbol_section = symbol_section;
- return bfd_reloc_ok;
- }
- if (last_addr != addr)
- abort ();
- last_addr = 0;
+ /* Used in ADDI, ANDI et al. */
+ HOWTO (R_SH_DIR10S, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 10, /* bitsize */
+ false, /* pc_relative */
+ 10, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_SH_DIR10S", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffc00, /* dst_mask */
+ false), /* pcrel_offset */
- if (! symbol_section || last_symbol_section != symbol_section || end < start)
- return bfd_reloc_outofrange;
+ /* Used in LD.UW, ST.W et al. */
+ HOWTO (R_SH_DIR10SW, /* type */
+ 1, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 11, /* bitsize */
+ false, /* pc_relative */
+ 10, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_SH_DIR10SW", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffc00, /* dst_mask */
+ false), /* pcrel_offset */
- /* Get the symbol_section contents. */
- if (symbol_section != input_section)
- {
- if (elf_section_data (symbol_section)->this_hdr.contents != NULL)
- contents = elf_section_data (symbol_section)->this_hdr.contents;
- else
- {
- free_contents = contents
- = (bfd_byte *) bfd_malloc (symbol_section->_raw_size);
- if (contents == NULL)
- return bfd_reloc_outofrange;
- if (! bfd_get_section_contents (input_bfd, symbol_section, contents,
- (file_ptr) 0,
- symbol_section->_raw_size))
- {
- free (contents);
- return bfd_reloc_outofrange;
- }
- }
- }
-#define IS_PPI(PTR) ((bfd_get_16 (input_bfd, (PTR)) & 0xfc00) == 0xf800)
- start_ptr = contents + start;
- for (cum_diff = -6, ptr = contents + end; cum_diff < 0 && ptr > start_ptr;)
- {
- for (last_ptr = ptr, ptr -= 4; ptr >= start_ptr && IS_PPI (ptr);)
- ptr -= 2;
- ptr += 2;
- diff = last_ptr - ptr >> 1;
- cum_diff += diff & 1;
- cum_diff += diff;
- }
- /* Calculate the start / end values to load into rs / re minus four -
- so that will cancel out the four we would otherwise have to add to
- addr to get the value to subtract in order to get relative addressing. */
- if (cum_diff >= 0)
- {
- start -= 4;
- end = (ptr + cum_diff * 2) - contents;
- }
- else
- {
- bfd_vma start0 = start - 4;
+ /* Used in LD.L, FLD.S et al. */
+ HOWTO (R_SH_DIR10SL, /* type */
+ 2, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 12, /* bitsize */
+ false, /* pc_relative */
+ 10, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_SH_DIR10SL", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffc00, /* dst_mask */
+ false), /* pcrel_offset */
- while (start0 >= 0 && IS_PPI (contents + start0))
- start0 -= 2;
- start0 = start - 2 - ((start - start0) & 2);
- start = start0 - cum_diff - 2;
- end = start0;
- }
+ /* Used in FLD.D, FST.P et al. */
+ HOWTO (R_SH_DIR10SQ, /* type */
+ 3, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 13, /* bitsize */
+ false, /* pc_relative */
+ 10, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_SH_DIR10SQ", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffc00, /* dst_mask */
+ false), /* pcrel_offset */
+
+#else
+ EMPTY_HOWTO (45),
+ EMPTY_HOWTO (46),
+ EMPTY_HOWTO (47),
+ EMPTY_HOWTO (48),
+ EMPTY_HOWTO (49),
+ EMPTY_HOWTO (50),
+ EMPTY_HOWTO (51),
+#endif
+
+ EMPTY_HOWTO (52),
+ EMPTY_HOWTO (53),
+ EMPTY_HOWTO (54),
+ EMPTY_HOWTO (55),
+ EMPTY_HOWTO (56),
+ EMPTY_HOWTO (57),
+ EMPTY_HOWTO (58),
+ EMPTY_HOWTO (59),
+ EMPTY_HOWTO (60),
+ EMPTY_HOWTO (61),
+ EMPTY_HOWTO (62),
+ EMPTY_HOWTO (63),
+ EMPTY_HOWTO (64),
+ EMPTY_HOWTO (65),
+ EMPTY_HOWTO (66),
+ EMPTY_HOWTO (67),
+ EMPTY_HOWTO (68),
+ EMPTY_HOWTO (69),
+ EMPTY_HOWTO (70),
+ EMPTY_HOWTO (71),
+ EMPTY_HOWTO (72),
+ EMPTY_HOWTO (73),
+ EMPTY_HOWTO (74),
+ EMPTY_HOWTO (75),
+ EMPTY_HOWTO (76),
+ EMPTY_HOWTO (77),
+ EMPTY_HOWTO (78),
+ EMPTY_HOWTO (79),
+ EMPTY_HOWTO (80),
+ EMPTY_HOWTO (81),
+ EMPTY_HOWTO (82),
+ EMPTY_HOWTO (83),
+ EMPTY_HOWTO (84),
+ EMPTY_HOWTO (85),
+ EMPTY_HOWTO (86),
+ EMPTY_HOWTO (87),
+ EMPTY_HOWTO (88),
+ EMPTY_HOWTO (89),
+ EMPTY_HOWTO (90),
+ EMPTY_HOWTO (91),
+ EMPTY_HOWTO (92),
+ EMPTY_HOWTO (93),
+ EMPTY_HOWTO (94),
+ EMPTY_HOWTO (95),
+ EMPTY_HOWTO (96),
+ EMPTY_HOWTO (97),
+ EMPTY_HOWTO (98),
+ EMPTY_HOWTO (99),
+ EMPTY_HOWTO (100),
+ EMPTY_HOWTO (101),
+ EMPTY_HOWTO (102),
+ EMPTY_HOWTO (103),
+ EMPTY_HOWTO (104),
+ EMPTY_HOWTO (105),
+ EMPTY_HOWTO (106),
+ EMPTY_HOWTO (107),
+ EMPTY_HOWTO (108),
+ EMPTY_HOWTO (109),
+ EMPTY_HOWTO (110),
+ EMPTY_HOWTO (111),
+ EMPTY_HOWTO (112),
+ EMPTY_HOWTO (113),
+ EMPTY_HOWTO (114),
+ EMPTY_HOWTO (115),
+ EMPTY_HOWTO (116),
+ EMPTY_HOWTO (117),
+ EMPTY_HOWTO (118),
+ EMPTY_HOWTO (119),
+ EMPTY_HOWTO (120),
+ EMPTY_HOWTO (121),
+ EMPTY_HOWTO (122),
+ EMPTY_HOWTO (123),
+ EMPTY_HOWTO (124),
+ EMPTY_HOWTO (125),
+ EMPTY_HOWTO (126),
+ EMPTY_HOWTO (127),
+ EMPTY_HOWTO (128),
+ EMPTY_HOWTO (129),
+ EMPTY_HOWTO (130),
+ EMPTY_HOWTO (131),
+ EMPTY_HOWTO (132),
+ EMPTY_HOWTO (133),
+ EMPTY_HOWTO (134),
+ EMPTY_HOWTO (135),
+ EMPTY_HOWTO (136),
+ EMPTY_HOWTO (137),
+ EMPTY_HOWTO (138),
+ EMPTY_HOWTO (139),
+ EMPTY_HOWTO (140),
+ EMPTY_HOWTO (141),
+ EMPTY_HOWTO (142),
+ EMPTY_HOWTO (143),
+ EMPTY_HOWTO (144),
+ EMPTY_HOWTO (145),
+ EMPTY_HOWTO (146),
+ EMPTY_HOWTO (147),
+ EMPTY_HOWTO (148),
+ EMPTY_HOWTO (149),
+ EMPTY_HOWTO (150),
+ EMPTY_HOWTO (151),
+ EMPTY_HOWTO (152),
+ EMPTY_HOWTO (153),
+ EMPTY_HOWTO (154),
+ EMPTY_HOWTO (155),
+ EMPTY_HOWTO (156),
+ EMPTY_HOWTO (157),
+ EMPTY_HOWTO (158),
+ EMPTY_HOWTO (159),
+
+ HOWTO (R_SH_GOT32, /* 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, /* */
+ "R_SH_GOT32", /* name */
+ true, /* partial_inplace */
+ 0xffffffff, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ false), /* pcrel_offset */
- if (free_contents)
- free (free_contents);
+ HOWTO (R_SH_PLT32, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize */
+ true, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* */
+ "R_SH_PLT32", /* name */
+ true, /* partial_inplace */
+ 0xffffffff, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ true), /* pcrel_offset */
- insn = bfd_get_16 (input_bfd, contents + addr);
+ HOWTO (R_SH_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, /* */
+ "R_SH_COPY", /* name */
+ true, /* partial_inplace */
+ 0xffffffff, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ false), /* pcrel_offset */
- x = (insn & 0x200 ? end : start) - addr;
- if (input_section != symbol_section)
- x += ((symbol_section->output_section->vma + symbol_section->output_offset)
- - (input_section->output_section->vma
- + input_section->output_offset));
- x >>= 1;
- if (x < -128 || x > 127)
- return bfd_reloc_overflow;
+ HOWTO (R_SH_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, /* */
+ "R_SH_GLOB_DAT", /* name */
+ true, /* partial_inplace */
+ 0xffffffff, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ false), /* pcrel_offset */
- x = insn & ~0xff | x & 0xff;
- bfd_put_16 (input_bfd, x, contents + addr);
+ HOWTO (R_SH_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, /* */
+ "R_SH_JMP_SLOT", /* name */
+ true, /* partial_inplace */
+ 0xffffffff, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ false), /* pcrel_offset */
- return bfd_reloc_ok;
-}
+ HOWTO (R_SH_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, /* */
+ "R_SH_RELATIVE", /* name */
+ true, /* partial_inplace */
+ 0xffffffff, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ false), /* pcrel_offset */
-/* This function is used for normal relocs. This used to be like the COFF
- function, and is almost certainly incorrect for other ELF targets. */
+ HOWTO (R_SH_GOTOFF, /* 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, /* */
+ "R_SH_GOTOFF", /* name */
+ true, /* partial_inplace */
+ 0xffffffff, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ false), /* pcrel_offset */
-static bfd_reloc_status_type
-sh_elf_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd,
- error_message)
- bfd *abfd;
- arelent *reloc_entry;
- asymbol *symbol_in;
- PTR data;
- asection *input_section;
- bfd *output_bfd;
- char **error_message ATTRIBUTE_UNUSED;
-{
- unsigned long insn;
- bfd_vma sym_value;
- enum elf_sh_reloc_type r_type;
- bfd_vma addr = reloc_entry->address;
- bfd_byte *hit_data = addr + (bfd_byte *) data;
+ HOWTO (R_SH_GOTPC, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize */
+ true, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* */
+ "R_SH_GOTPC", /* name */
+ true, /* partial_inplace */
+ 0xffffffff, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ true), /* pcrel_offset */
- r_type = (enum elf_sh_reloc_type) reloc_entry->howto->type;
+ HOWTO (R_SH_GOTPLT32, /* 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, /* */
+ "R_SH_GOTPLT32", /* name */
+ false, /* partial_inplace */
+ 0xffffffff, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ false), /* pcrel_offset */
- if (output_bfd != NULL)
- {
- /* Partial linking--do nothing. */
- reloc_entry->address += input_section->output_offset;
- return bfd_reloc_ok;
- }
+#ifdef INCLUDE_SHMEDIA
+ /* Used in MOVI and SHORI (x & 65536). */
+ HOWTO (R_SH_GOT_LOW16, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 64, /* bitsize */
+ false, /* pc_relative */
+ 10, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_SH_GOT_LOW16", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0x3fffc00, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* Used in MOVI and SHORI ((x >> 16) & 65536). */
+ HOWTO (R_SH_GOT_MEDLOW16, /* type */
+ 16, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 64, /* bitsize */
+ false, /* pc_relative */
+ 10, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_SH_GOT_MEDLOW16", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0x3fffc00, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* Used in MOVI and SHORI ((x >> 32) & 65536). */
+ HOWTO (R_SH_GOT_MEDHI16, /* type */
+ 32, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 64, /* bitsize */
+ false, /* pc_relative */
+ 10, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_SH_GOT_MEDHI16", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0x3fffc00, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* Used in MOVI and SHORI ((x >> 48) & 65536). */
+ HOWTO (R_SH_GOT_HI16, /* type */
+ 48, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 64, /* bitsize */
+ false, /* pc_relative */
+ 10, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_SH_GOT_HI16", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0x3fffc00, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* Used in MOVI and SHORI (x & 65536). */
+ HOWTO (R_SH_GOTPLT_LOW16, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 64, /* bitsize */
+ false, /* pc_relative */
+ 10, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_SH_GOTPLT_LOW16", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0x3fffc00, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* Used in MOVI and SHORI ((x >> 16) & 65536). */
+ HOWTO (R_SH_GOTPLT_MEDLOW16, /* type */
+ 16, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 64, /* bitsize */
+ false, /* pc_relative */
+ 10, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_SH_GOTPLT_MEDLOW16", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0x3fffc00, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* Used in MOVI and SHORI ((x >> 32) & 65536). */
+ HOWTO (R_SH_GOTPLT_MEDHI16, /* type */
+ 32, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 64, /* bitsize */
+ false, /* pc_relative */
+ 10, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_SH_GOTPLT_MEDHI16", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0x3fffc00, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* Used in MOVI and SHORI ((x >> 48) & 65536). */
+ HOWTO (R_SH_GOTPLT_HI16, /* type */
+ 48, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 64, /* bitsize */
+ false, /* pc_relative */
+ 10, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_SH_GOTPLT_HI16", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0x3fffc00, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* Used in MOVI and SHORI (x & 65536). */
+ HOWTO (R_SH_PLT_LOW16, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 64, /* bitsize */
+ true, /* pc_relative */
+ 10, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_SH_PLT_LOW16", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0x3fffc00, /* dst_mask */
+ true), /* pcrel_offset */
+
+ /* Used in MOVI and SHORI ((x >> 16) & 65536). */
+ HOWTO (R_SH_PLT_MEDLOW16, /* type */
+ 16, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 64, /* bitsize */
+ true, /* pc_relative */
+ 10, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_SH_PLT_MEDLOW16", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0x3fffc00, /* dst_mask */
+ true), /* pcrel_offset */
+
+ /* Used in MOVI and SHORI ((x >> 32) & 65536). */
+ HOWTO (R_SH_PLT_MEDHI16, /* type */
+ 32, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 64, /* bitsize */
+ true, /* pc_relative */
+ 10, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_SH_PLT_MEDHI16", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0x3fffc00, /* dst_mask */
+ true), /* pcrel_offset */
+
+ /* Used in MOVI and SHORI ((x >> 48) & 65536). */
+ HOWTO (R_SH_PLT_HI16, /* type */
+ 48, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 64, /* bitsize */
+ true, /* pc_relative */
+ 10, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_SH_PLT_HI16", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0x3fffc00, /* dst_mask */
+ true), /* pcrel_offset */
+
+ /* Used in MOVI and SHORI (x & 65536). */
+ HOWTO (R_SH_GOTOFF_LOW16, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 64, /* bitsize */
+ false, /* pc_relative */
+ 10, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_SH_GOTOFF_LOW16", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0x3fffc00, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* Used in MOVI and SHORI ((x >> 16) & 65536). */
+ HOWTO (R_SH_GOTOFF_MEDLOW16, /* type */
+ 16, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 64, /* bitsize */
+ false, /* pc_relative */
+ 10, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_SH_GOTOFF_MEDLOW16", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0x3fffc00, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* Used in MOVI and SHORI ((x >> 32) & 65536). */
+ HOWTO (R_SH_GOTOFF_MEDHI16, /* type */
+ 32, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 64, /* bitsize */
+ false, /* pc_relative */
+ 10, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_SH_GOTOFF_MEDHI16", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0x3fffc00, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* Used in MOVI and SHORI ((x >> 48) & 65536). */
+ HOWTO (R_SH_GOTOFF_HI16, /* type */
+ 48, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 64, /* bitsize */
+ false, /* pc_relative */
+ 10, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_SH_GOTOFF_HI16", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0x3fffc00, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* Used in MOVI and SHORI (x & 65536). */
+ HOWTO (R_SH_GOTPC_LOW16, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 64, /* bitsize */
+ true, /* pc_relative */
+ 10, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_SH_GOTPC_LOW16", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0x3fffc00, /* dst_mask */
+ true), /* pcrel_offset */
+
+ /* Used in MOVI and SHORI ((x >> 16) & 65536). */
+ HOWTO (R_SH_GOTPC_MEDLOW16, /* type */
+ 16, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 64, /* bitsize */
+ true, /* pc_relative */
+ 10, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_SH_GOTPC_MEDLOW16", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0x3fffc00, /* dst_mask */
+ true), /* pcrel_offset */
+
+ /* Used in MOVI and SHORI ((x >> 32) & 65536). */
+ HOWTO (R_SH_GOTPC_MEDHI16, /* type */
+ 32, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 64, /* bitsize */
+ true, /* pc_relative */
+ 10, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_SH_GOTPC_MEDHI16", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0x3fffc00, /* dst_mask */
+ true), /* pcrel_offset */
+
+ /* Used in MOVI and SHORI ((x >> 48) & 65536). */
+ HOWTO (R_SH_GOTPC_HI16, /* type */
+ 48, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 64, /* bitsize */
+ true, /* pc_relative */
+ 10, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_SH_GOTPC_HI16", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0x3fffc00, /* dst_mask */
+ true), /* pcrel_offset */
+
+ /* Used in LD.L, FLD.S et al. */
+ HOWTO (R_SH_GOT10BY4, /* type */
+ 2, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 12, /* bitsize */
+ false, /* pc_relative */
+ 10, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_SH_GOT10BY4", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffc00, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* Used in LD.L, FLD.S et al. */
+ HOWTO (R_SH_GOTPLT10BY4, /* type */
+ 2, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 12, /* bitsize */
+ false, /* pc_relative */
+ 10, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_SH_GOTPLT10BY4", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffc00, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* Used in FLD.D, FST.P et al. */
+ HOWTO (R_SH_GOT10BY8, /* type */
+ 3, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 13, /* bitsize */
+ false, /* pc_relative */
+ 10, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_SH_GOT10BY8", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffc00, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* Used in FLD.D, FST.P et al. */
+ HOWTO (R_SH_GOTPLT10BY8, /* type */
+ 3, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 13, /* bitsize */
+ false, /* pc_relative */
+ 10, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_SH_GOTPLT10BY8", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffc00, /* dst_mask */
+ false), /* pcrel_offset */
+
+ HOWTO (R_SH_COPY64, /* type */
+ 0, /* rightshift */
+ 4, /* size (0 = byte, 1 = short, 2 = long) */
+ 64, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_SH_COPY64", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ ((bfd_vma) 0) - 1, /* dst_mask */
+ false), /* pcrel_offset */
+
+ HOWTO (R_SH_GLOB_DAT64, /* type */
+ 0, /* rightshift */
+ 4, /* size (0 = byte, 1 = short, 2 = long) */
+ 64, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_SH_GLOB_DAT64", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ ((bfd_vma) 0) - 1, /* dst_mask */
+ false), /* pcrel_offset */
+
+ HOWTO (R_SH_JMP_SLOT64, /* type */
+ 0, /* rightshift */
+ 4, /* size (0 = byte, 1 = short, 2 = long) */
+ 64, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_SH_JMP_SLOT64", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ ((bfd_vma) 0) - 1, /* dst_mask */
+ false), /* pcrel_offset */
+
+ HOWTO (R_SH_RELATIVE64, /* type */
+ 0, /* rightshift */
+ 4, /* size (0 = byte, 1 = short, 2 = long) */
+ 64, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_SH_RELATIVE64", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ ((bfd_vma) 0) - 1, /* dst_mask */
+ false), /* pcrel_offset */
+
+ EMPTY_HOWTO (197),
+ EMPTY_HOWTO (198),
+ EMPTY_HOWTO (199),
+ EMPTY_HOWTO (200),
+ EMPTY_HOWTO (201),
+ EMPTY_HOWTO (202),
+ EMPTY_HOWTO (203),
+ EMPTY_HOWTO (204),
+ EMPTY_HOWTO (205),
+ EMPTY_HOWTO (206),
+ EMPTY_HOWTO (207),
+ EMPTY_HOWTO (208),
+ EMPTY_HOWTO (209),
+ EMPTY_HOWTO (210),
+ EMPTY_HOWTO (211),
+ EMPTY_HOWTO (212),
+ EMPTY_HOWTO (213),
+ EMPTY_HOWTO (214),
+ EMPTY_HOWTO (215),
+ EMPTY_HOWTO (216),
+ EMPTY_HOWTO (217),
+ EMPTY_HOWTO (218),
+ EMPTY_HOWTO (219),
+ EMPTY_HOWTO (220),
+ EMPTY_HOWTO (221),
+ EMPTY_HOWTO (222),
+ EMPTY_HOWTO (223),
+ EMPTY_HOWTO (224),
+ EMPTY_HOWTO (225),
+ EMPTY_HOWTO (226),
+ EMPTY_HOWTO (227),
+ EMPTY_HOWTO (228),
+ EMPTY_HOWTO (229),
+ EMPTY_HOWTO (230),
+ EMPTY_HOWTO (231),
+ EMPTY_HOWTO (232),
+ EMPTY_HOWTO (233),
+ EMPTY_HOWTO (234),
+ EMPTY_HOWTO (235),
+ EMPTY_HOWTO (236),
+ EMPTY_HOWTO (237),
+ EMPTY_HOWTO (238),
+ EMPTY_HOWTO (239),
+ EMPTY_HOWTO (240),
+ EMPTY_HOWTO (241),
+
+ /* Relocations for SHmedia code. None of these are partial_inplace or
+ use the field being relocated (except R_SH_PT_16). */
+
+ /* The assembler will generate this reloc before a block of SHmedia
+ instructions. A section should be processed as assuming it contains
+ data, unless this reloc is seen. Note that a block of SHcompact
+ instructions are instead preceded by R_SH_CODE.
+ This is currently not implemented, but should be used for SHmedia
+ linker relaxation. */
+ HOWTO (R_SH_SHMEDIA_CODE, /* type */
+ 0, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 0, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_unsigned, /* complain_on_overflow */
+ sh_elf_ignore_reloc, /* special_function */
+ "R_SH_SHMEDIA_CODE", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* The assembler will generate this reloc at a PTA or PTB instruction,
+ and the linker checks the right type of target, or changes a PTA to a
+ PTB, if the original insn was PT. */
+ HOWTO (R_SH_PT_16, /* type */
+ 2, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 18, /* bitsize */
+ true, /* pc_relative */
+ 10, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_SH_PT_16", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0x3fffc00, /* dst_mask */
+ true), /* pcrel_offset */
+
+ /* Used in unexpanded MOVI. */
+ HOWTO (R_SH_IMMS16, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ false, /* pc_relative */
+ 10, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_SH_IMMS16", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0x3fffc00, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* Used in SHORI. */
+ HOWTO (R_SH_IMMU16, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ false, /* pc_relative */
+ 10, /* bitpos */
+ complain_overflow_unsigned, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_SH_IMMU16", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0x3fffc00, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* Used in MOVI and SHORI (x & 65536). */
+ HOWTO (R_SH_IMM_LOW16, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 64, /* bitsize */
+ false, /* pc_relative */
+ 10, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_SH_IMM_LOW16", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0x3fffc00, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* Used in MOVI and SHORI ((x - $) & 65536). */
+ HOWTO (R_SH_IMM_LOW16_PCREL, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 64, /* bitsize */
+ true, /* pc_relative */
+ 10, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_SH_IMM_LOW16_PCREL", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0x3fffc00, /* dst_mask */
+ true), /* pcrel_offset */
+
+ /* Used in MOVI and SHORI ((x >> 16) & 65536). */
+ HOWTO (R_SH_IMM_MEDLOW16, /* type */
+ 16, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 64, /* bitsize */
+ false, /* pc_relative */
+ 10, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_SH_IMM_MEDLOW16", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0x3fffc00, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* Used in MOVI and SHORI (((x - $) >> 16) & 65536). */
+ HOWTO (R_SH_IMM_MEDLOW16_PCREL, /* type */
+ 16, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 64, /* bitsize */
+ true, /* pc_relative */
+ 10, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_SH_IMM_MEDLOW16_PCREL", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0x3fffc00, /* dst_mask */
+ true), /* pcrel_offset */
+
+ /* Used in MOVI and SHORI ((x >> 32) & 65536). */
+ HOWTO (R_SH_IMM_MEDHI16, /* type */
+ 32, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 64, /* bitsize */
+ false, /* pc_relative */
+ 10, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_SH_IMM_MEDHI16", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0x3fffc00, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* Used in MOVI and SHORI (((x - $) >> 32) & 65536). */
+ HOWTO (R_SH_IMM_MEDHI16_PCREL, /* type */
+ 32, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 64, /* bitsize */
+ true, /* pc_relative */
+ 10, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_SH_IMM_MEDHI16_PCREL", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0x3fffc00, /* dst_mask */
+ true), /* pcrel_offset */
+
+ /* Used in MOVI and SHORI ((x >> 48) & 65536). */
+ HOWTO (R_SH_IMM_HI16, /* type */
+ 48, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 64, /* bitsize */
+ false, /* pc_relative */
+ 10, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_SH_IMM_HI16", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0x3fffc00, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* Used in MOVI and SHORI (((x - $) >> 48) & 65536). */
+ HOWTO (R_SH_IMM_HI16_PCREL, /* type */
+ 48, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 64, /* bitsize */
+ true, /* pc_relative */
+ 10, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_SH_IMM_HI16_PCREL", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0x3fffc00, /* dst_mask */
+ true), /* pcrel_offset */
+
+ /* For the .uaquad pseudo. */
+ HOWTO (R_SH_64, /* type */
+ 0, /* rightshift */
+ 4, /* size (0 = byte, 1 = short, 2 = long) */
+ 64, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_SH_64", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ ((bfd_vma) 0) - 1, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* For the .uaquad pseudo, (x - $). */
+ HOWTO (R_SH_64_PCREL, /* type */
+ 48, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 64, /* bitsize */
+ true, /* pc_relative */
+ 10, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_SH_64_PCREL", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ ((bfd_vma) 0) - 1, /* dst_mask */
+ true), /* pcrel_offset */
+
+#endif
+};
+
+static bfd_reloc_status_type
+sh_elf_reloc_loop (r_type, input_bfd, input_section, contents, addr,
+ symbol_section, start, end)
+ int r_type ATTRIBUTE_UNUSED;
+ bfd *input_bfd;
+ asection *input_section;
+ bfd_byte *contents;
+ bfd_vma addr;
+ asection *symbol_section;
+ bfd_vma start, end;
+{
+ static bfd_vma last_addr;
+ static asection *last_symbol_section;
+ bfd_byte *free_contents = NULL;
+ bfd_byte *start_ptr, *ptr, *last_ptr;
+ int diff, cum_diff;
+ bfd_signed_vma x;
+ int insn;
+
+ /* Sanity check the address. */
+ if (addr > input_section->_raw_size)
+ return bfd_reloc_outofrange;
+
+ /* We require the start and end relocations to be processed consecutively -
+ although we allow then to be processed forwards or backwards. */
+ if (! last_addr)
+ {
+ last_addr = addr;
+ last_symbol_section = symbol_section;
+ return bfd_reloc_ok;
+ }
+ if (last_addr != addr)
+ abort ();
+ last_addr = 0;
+
+ if (! symbol_section || last_symbol_section != symbol_section || end < start)
+ return bfd_reloc_outofrange;
+
+ /* Get the symbol_section contents. */
+ if (symbol_section != input_section)
+ {
+ if (elf_section_data (symbol_section)->this_hdr.contents != NULL)
+ contents = elf_section_data (symbol_section)->this_hdr.contents;
+ else
+ {
+ contents = (bfd_byte *) bfd_malloc (symbol_section->_raw_size);
+ if (contents == NULL)
+ return bfd_reloc_outofrange;
+ free_contents = contents;
+ if (! bfd_get_section_contents (input_bfd, symbol_section, contents,
+ (file_ptr) 0,
+ symbol_section->_raw_size))
+ {
+ free (contents);
+ return bfd_reloc_outofrange;
+ }
+ }
+ }
+#define IS_PPI(PTR) ((bfd_get_16 (input_bfd, (PTR)) & 0xfc00) == 0xf800)
+ start_ptr = contents + start;
+ for (cum_diff = -6, ptr = contents + end; cum_diff < 0 && ptr > start_ptr;)
+ {
+ for (last_ptr = ptr, ptr -= 4; ptr >= start_ptr && IS_PPI (ptr);)
+ ptr -= 2;
+ ptr += 2;
+ diff = (last_ptr - ptr) >> 1;
+ cum_diff += diff & 1;
+ cum_diff += diff;
+ }
+ /* Calculate the start / end values to load into rs / re minus four -
+ so that will cancel out the four we would otherwise have to add to
+ addr to get the value to subtract in order to get relative addressing. */
+ if (cum_diff >= 0)
+ {
+ start -= 4;
+ end = (ptr + cum_diff * 2) - contents;
+ }
+ else
+ {
+ bfd_vma start0 = start - 4;
+
+ while (start0 && IS_PPI (contents + start0))
+ start0 -= 2;
+ start0 = start - 2 - ((start - start0) & 2);
+ start = start0 - cum_diff - 2;
+ end = start0;
+ }
+
+ if (free_contents)
+ free (free_contents);
+
+ insn = bfd_get_16 (input_bfd, contents + addr);
+
+ x = (insn & 0x200 ? end : start) - addr;
+ if (input_section != symbol_section)
+ x += ((symbol_section->output_section->vma + symbol_section->output_offset)
+ - (input_section->output_section->vma
+ + input_section->output_offset));
+ x >>= 1;
+ if (x < -128 || x > 127)
+ return bfd_reloc_overflow;
+
+ x = (insn & ~0xff) | (x & 0xff);
+ bfd_put_16 (input_bfd, (bfd_vma) x, contents + addr);
+
+ return bfd_reloc_ok;
+}
+
+/* This function is used for normal relocs. This used to be like the COFF
+ function, and is almost certainly incorrect for other ELF targets. */
+
+static bfd_reloc_status_type
+sh_elf_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd,
+ error_message)
+ bfd *abfd;
+ arelent *reloc_entry;
+ asymbol *symbol_in;
+ PTR data;
+ asection *input_section;
+ bfd *output_bfd;
+ char **error_message ATTRIBUTE_UNUSED;
+{
+ unsigned long insn;
+ bfd_vma sym_value;
+ enum elf_sh_reloc_type r_type;
+ bfd_vma addr = reloc_entry->address;
+ bfd_byte *hit_data = addr + (bfd_byte *) data;
+
+ r_type = (enum elf_sh_reloc_type) reloc_entry->howto->type;
+
+ if (output_bfd != NULL)
+ {
+ /* Partial linking--do nothing. */
+ reloc_entry->address += input_section->output_offset;
+ return bfd_reloc_ok;
+ }
/* Almost all relocs have to do with relaxing. If any work must be
done for them, it has been done in sh_relax_section. */
if (r_type == R_SH_IND12W && (symbol_in->flags & BSF_LOCAL) != 0)
return bfd_reloc_ok;
- if (symbol_in != NULL
- && bfd_is_und_section (symbol_in->section))
- return bfd_reloc_undefined;
+ if (symbol_in != NULL
+ && bfd_is_und_section (symbol_in->section))
+ return bfd_reloc_undefined;
+
+ if (bfd_is_com_section (symbol_in->section))
+ sym_value = 0;
+ else
+ sym_value = (symbol_in->value +
+ symbol_in->section->output_section->vma +
+ symbol_in->section->output_offset);
+
+ switch (r_type)
+ {
+ case R_SH_DIR32:
+ insn = bfd_get_32 (abfd, hit_data);
+ insn += sym_value + reloc_entry->addend;
+ bfd_put_32 (abfd, (bfd_vma) insn, hit_data);
+ break;
+ case R_SH_IND12W:
+ insn = bfd_get_16 (abfd, hit_data);
+ sym_value += reloc_entry->addend;
+ sym_value -= (input_section->output_section->vma
+ + input_section->output_offset
+ + addr
+ + 4);
+ sym_value += (insn & 0xfff) << 1;
+ if (insn & 0x800)
+ sym_value -= 0x1000;
+ insn = (insn & 0xf000) | (sym_value & 0xfff);
+ bfd_put_16 (abfd, (bfd_vma) insn, hit_data);
+ if (sym_value < (bfd_vma) -0x1000 || sym_value >= 0x1000)
+ return bfd_reloc_overflow;
+ break;
+ default:
+ abort ();
+ break;
+ }
+
+ return bfd_reloc_ok;
+}
+
+/* This function is used for relocs which are only used for relaxing,
+ which the linker should otherwise ignore. */
+
+static bfd_reloc_status_type
+sh_elf_ignore_reloc (abfd, reloc_entry, symbol, data, input_section,
+ output_bfd, error_message)
+ bfd *abfd ATTRIBUTE_UNUSED;
+ arelent *reloc_entry;
+ asymbol *symbol ATTRIBUTE_UNUSED;
+ PTR data ATTRIBUTE_UNUSED;
+ asection *input_section;
+ bfd *output_bfd;
+ char **error_message ATTRIBUTE_UNUSED;
+{
+ if (output_bfd != NULL)
+ reloc_entry->address += input_section->output_offset;
+ return bfd_reloc_ok;
+}
+
+/* This structure is used to map BFD reloc codes to SH ELF relocs. */
+
+struct elf_reloc_map
+{
+ bfd_reloc_code_real_type bfd_reloc_val;
+ unsigned char elf_reloc_val;
+};
+
+/* An array mapping BFD reloc codes to SH ELF relocs. */
+
+static const struct elf_reloc_map sh_reloc_map[] =
+{
+ { BFD_RELOC_NONE, R_SH_NONE },
+ { BFD_RELOC_32, R_SH_DIR32 },
+ { BFD_RELOC_CTOR, R_SH_DIR32 },
+ { BFD_RELOC_32_PCREL, R_SH_REL32 },
+ { BFD_RELOC_SH_PCDISP8BY2, R_SH_DIR8WPN },
+ { BFD_RELOC_SH_PCDISP12BY2, R_SH_IND12W },
+ { BFD_RELOC_SH_PCRELIMM8BY2, R_SH_DIR8WPZ },
+ { BFD_RELOC_SH_PCRELIMM8BY4, R_SH_DIR8WPL },
+ { BFD_RELOC_8_PCREL, R_SH_SWITCH8 },
+ { BFD_RELOC_SH_SWITCH16, R_SH_SWITCH16 },
+ { BFD_RELOC_SH_SWITCH32, R_SH_SWITCH32 },
+ { BFD_RELOC_SH_USES, R_SH_USES },
+ { BFD_RELOC_SH_COUNT, R_SH_COUNT },
+ { BFD_RELOC_SH_ALIGN, R_SH_ALIGN },
+ { BFD_RELOC_SH_CODE, R_SH_CODE },
+ { BFD_RELOC_SH_DATA, R_SH_DATA },
+ { BFD_RELOC_SH_LABEL, R_SH_LABEL },
+ { BFD_RELOC_VTABLE_INHERIT, R_SH_GNU_VTINHERIT },
+ { BFD_RELOC_VTABLE_ENTRY, R_SH_GNU_VTENTRY },
+ { BFD_RELOC_SH_LOOP_START, R_SH_LOOP_START },
+ { BFD_RELOC_SH_LOOP_END, R_SH_LOOP_END },
+ { BFD_RELOC_32_GOT_PCREL, R_SH_GOT32 },
+ { BFD_RELOC_32_PLT_PCREL, R_SH_PLT32 },
+ { BFD_RELOC_SH_COPY, R_SH_COPY },
+ { BFD_RELOC_SH_GLOB_DAT, R_SH_GLOB_DAT },
+ { BFD_RELOC_SH_JMP_SLOT, R_SH_JMP_SLOT },
+ { BFD_RELOC_SH_RELATIVE, R_SH_RELATIVE },
+ { BFD_RELOC_32_GOTOFF, R_SH_GOTOFF },
+ { BFD_RELOC_SH_GOTPC, R_SH_GOTPC },
+ { BFD_RELOC_SH_GOTPLT32, R_SH_GOTPLT32 },
+#ifdef INCLUDE_SHMEDIA
+ { BFD_RELOC_SH_GOT_LOW16, R_SH_GOT_LOW16 },
+ { BFD_RELOC_SH_GOT_MEDLOW16, R_SH_GOT_MEDLOW16 },
+ { BFD_RELOC_SH_GOT_MEDHI16, R_SH_GOT_MEDHI16 },
+ { BFD_RELOC_SH_GOT_HI16, R_SH_GOT_HI16 },
+ { BFD_RELOC_SH_GOTPLT_LOW16, R_SH_GOTPLT_LOW16 },
+ { BFD_RELOC_SH_GOTPLT_MEDLOW16, R_SH_GOTPLT_MEDLOW16 },
+ { BFD_RELOC_SH_GOTPLT_MEDHI16, R_SH_GOTPLT_MEDHI16 },
+ { BFD_RELOC_SH_GOTPLT_HI16, R_SH_GOTPLT_HI16 },
+ { BFD_RELOC_SH_PLT_LOW16, R_SH_PLT_LOW16 },
+ { BFD_RELOC_SH_PLT_MEDLOW16, R_SH_PLT_MEDLOW16 },
+ { BFD_RELOC_SH_PLT_MEDHI16, R_SH_PLT_MEDHI16 },
+ { BFD_RELOC_SH_PLT_HI16, R_SH_PLT_HI16 },
+ { BFD_RELOC_SH_GOTOFF_LOW16, R_SH_GOTOFF_LOW16 },
+ { BFD_RELOC_SH_GOTOFF_MEDLOW16, R_SH_GOTOFF_MEDLOW16 },
+ { BFD_RELOC_SH_GOTOFF_MEDHI16, R_SH_GOTOFF_MEDHI16 },
+ { BFD_RELOC_SH_GOTOFF_HI16, R_SH_GOTOFF_HI16 },
+ { BFD_RELOC_SH_GOTPC_LOW16, R_SH_GOTPC_LOW16 },
+ { BFD_RELOC_SH_GOTPC_MEDLOW16, R_SH_GOTPC_MEDLOW16 },
+ { BFD_RELOC_SH_GOTPC_MEDHI16, R_SH_GOTPC_MEDHI16 },
+ { BFD_RELOC_SH_GOTPC_HI16, R_SH_GOTPC_HI16 },
+ { BFD_RELOC_SH_COPY64, R_SH_COPY64 },
+ { BFD_RELOC_SH_GLOB_DAT64, R_SH_GLOB_DAT64 },
+ { BFD_RELOC_SH_JMP_SLOT64, R_SH_JMP_SLOT64 },
+ { BFD_RELOC_SH_RELATIVE64, R_SH_RELATIVE64 },
+ { BFD_RELOC_SH_GOT10BY4, R_SH_GOT10BY4 },
+ { BFD_RELOC_SH_GOT10BY8, R_SH_GOT10BY8 },
+ { BFD_RELOC_SH_GOTPLT10BY4, R_SH_GOTPLT10BY4 },
+ { BFD_RELOC_SH_GOTPLT10BY8, R_SH_GOTPLT10BY8 },
+ { BFD_RELOC_SH_PT_16, R_SH_PT_16 },
+ { BFD_RELOC_SH_SHMEDIA_CODE, R_SH_SHMEDIA_CODE },
+ { BFD_RELOC_SH_IMMU5, R_SH_DIR5U },
+ { BFD_RELOC_SH_IMMS6, R_SH_DIR6S },
+ { BFD_RELOC_SH_IMMU6, R_SH_DIR6U },
+ { BFD_RELOC_SH_IMMS10, R_SH_DIR10S },
+ { BFD_RELOC_SH_IMMS10BY2, R_SH_DIR10SW },
+ { BFD_RELOC_SH_IMMS10BY4, R_SH_DIR10SL },
+ { BFD_RELOC_SH_IMMS10BY8, R_SH_DIR10SQ },
+ { BFD_RELOC_SH_IMMS16, R_SH_IMMS16 },
+ { BFD_RELOC_SH_IMMU16, R_SH_IMMU16 },
+ { BFD_RELOC_SH_IMM_LOW16, R_SH_IMM_LOW16 },
+ { BFD_RELOC_SH_IMM_LOW16_PCREL, R_SH_IMM_LOW16_PCREL },
+ { BFD_RELOC_SH_IMM_MEDLOW16, R_SH_IMM_MEDLOW16 },
+ { BFD_RELOC_SH_IMM_MEDLOW16_PCREL, R_SH_IMM_MEDLOW16_PCREL },
+ { BFD_RELOC_SH_IMM_MEDHI16, R_SH_IMM_MEDHI16 },
+ { BFD_RELOC_SH_IMM_MEDHI16_PCREL, R_SH_IMM_MEDHI16_PCREL },
+ { BFD_RELOC_SH_IMM_HI16, R_SH_IMM_HI16 },
+ { BFD_RELOC_SH_IMM_HI16_PCREL, R_SH_IMM_HI16_PCREL },
+ { BFD_RELOC_64, R_SH_64 },
+ { BFD_RELOC_64_PCREL, R_SH_64_PCREL },
+#endif /* not INCLUDE_SHMEDIA */
+};
+
+/* Given a BFD reloc code, return the howto structure for the
+ corresponding SH ELf reloc. */
+
+static reloc_howto_type *
+sh_elf_reloc_type_lookup (abfd, code)
+ bfd *abfd ATTRIBUTE_UNUSED;
+ bfd_reloc_code_real_type code;
+{
+ unsigned int i;
+
+ for (i = 0; i < sizeof (sh_reloc_map) / sizeof (struct elf_reloc_map); i++)
+ {
+ if (sh_reloc_map[i].bfd_reloc_val == code)
+ return &sh_elf_howto_table[(int) sh_reloc_map[i].elf_reloc_val];
+ }
+
+ return NULL;
+}
+
+/* Given an ELF reloc, fill in the howto field of a relent. */
+
+static void
+sh_elf_info_to_howto (abfd, cache_ptr, dst)
+ bfd *abfd ATTRIBUTE_UNUSED;
+ arelent *cache_ptr;
+ Elf_Internal_Rela *dst;
+{
+ unsigned int r;
+
+ r = ELF32_R_TYPE (dst->r_info);
+
+ BFD_ASSERT (r < (unsigned int) R_SH_max);
+ BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC || r > R_SH_LAST_INVALID_RELOC);
+ BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC_2 || r > R_SH_LAST_INVALID_RELOC_2);
+ BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC_3 || r > R_SH_LAST_INVALID_RELOC_3);
+ BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC_4 || r > R_SH_LAST_INVALID_RELOC_4);
+
+ cache_ptr->howto = &sh_elf_howto_table[r];
+}
+\f
+/* This function handles relaxing for SH ELF. See the corresponding
+ function in coff-sh.c for a description of what this does. FIXME:
+ There is a lot of duplication here between this code and the COFF
+ specific code. The format of relocs and symbols is wound deeply
+ into this code, but it would still be better if the duplication
+ could be eliminated somehow. Note in particular that although both
+ functions use symbols like R_SH_CODE, those symbols have different
+ values; in coff-sh.c they come from include/coff/sh.h, whereas here
+ they come from enum elf_sh_reloc_type in include/elf/sh.h. */
+
+static boolean
+sh_elf_relax_section (abfd, sec, link_info, again)
+ bfd *abfd;
+ asection *sec;
+ struct bfd_link_info *link_info;
+ boolean *again;
+{
+ Elf_Internal_Shdr *symtab_hdr;
+ Elf_Internal_Shdr *shndx_hdr;
+ Elf_Internal_Rela *internal_relocs;
+ Elf_Internal_Rela *free_relocs = NULL;
+ boolean have_code;
+ Elf_Internal_Rela *irel, *irelend;
+ bfd_byte *contents = NULL;
+ bfd_byte *free_contents = NULL;
+ Elf32_External_Sym *extsyms = NULL;
+ Elf32_External_Sym *free_extsyms = NULL;
+ Elf_External_Sym_Shndx *shndx_buf = NULL;
+
+ *again = false;
+
+ if (link_info->relocateable
+ || (sec->flags & SEC_RELOC) == 0
+ || sec->reloc_count == 0)
+ return true;
+
+#ifdef INCLUDE_SHMEDIA
+ if (elf_section_data (sec)->this_hdr.sh_flags
+ & (SHF_SH5_ISA32 | SHF_SH5_ISA32_MIXED))
+ {
+ return true;
+ }
+#endif
+
+ /* If this is the first time we have been called for this section,
+ initialize the cooked size. */
+ if (sec->_cooked_size == 0)
+ sec->_cooked_size = sec->_raw_size;
+
+ symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
+ shndx_hdr = &elf_tdata (abfd)->symtab_shndx_hdr;
+
+ internal_relocs = (_bfd_elf32_link_read_relocs
+ (abfd, sec, (PTR) NULL, (Elf_Internal_Rela *) NULL,
+ link_info->keep_memory));
+ if (internal_relocs == NULL)
+ goto error_return;
+ if (! link_info->keep_memory)
+ free_relocs = internal_relocs;
+
+ have_code = false;
+
+ irelend = internal_relocs + sec->reloc_count;
+ for (irel = internal_relocs; irel < irelend; irel++)
+ {
+ bfd_vma laddr, paddr, symval;
+ unsigned short insn;
+ Elf_Internal_Rela *irelfn, *irelscan, *irelcount;
+ bfd_signed_vma foff;
+
+ if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_CODE)
+ have_code = true;
+
+ if (ELF32_R_TYPE (irel->r_info) != (int) R_SH_USES)
+ continue;
+
+ /* Get the section contents. */
+ if (contents == NULL)
+ {
+ if (elf_section_data (sec)->this_hdr.contents != NULL)
+ contents = elf_section_data (sec)->this_hdr.contents;
+ else
+ {
+ contents = (bfd_byte *) bfd_malloc (sec->_raw_size);
+ if (contents == NULL)
+ goto error_return;
+ free_contents = contents;
+
+ if (! bfd_get_section_contents (abfd, sec, contents,
+ (file_ptr) 0, sec->_raw_size))
+ goto error_return;
+ }
+ }
- if (bfd_is_com_section (symbol_in->section))
- sym_value = 0;
- else
- sym_value = (symbol_in->value +
- symbol_in->section->output_section->vma +
- symbol_in->section->output_offset);
+ /* The r_addend field of the R_SH_USES reloc will point us to
+ the register load. The 4 is because the r_addend field is
+ computed as though it were a jump offset, which are based
+ from 4 bytes after the jump instruction. */
+ laddr = irel->r_offset + 4 + irel->r_addend;
+ if (laddr >= sec->_raw_size)
+ {
+ (*_bfd_error_handler) (_("%s: 0x%lx: warning: bad R_SH_USES offset"),
+ bfd_archive_filename (abfd),
+ (unsigned long) irel->r_offset);
+ continue;
+ }
+ insn = bfd_get_16 (abfd, contents + laddr);
- switch (r_type)
- {
- case R_SH_DIR32:
- insn = bfd_get_32 (abfd, hit_data);
- insn += sym_value + reloc_entry->addend;
- bfd_put_32 (abfd, insn, hit_data);
- break;
- case R_SH_IND12W:
- insn = bfd_get_16 (abfd, hit_data);
- sym_value += reloc_entry->addend;
- sym_value -= (input_section->output_section->vma
- + input_section->output_offset
- + addr
- + 4);
- sym_value += (insn & 0xfff) << 1;
- if (insn & 0x800)
- sym_value -= 0x1000;
- insn = (insn & 0xf000) | (sym_value & 0xfff);
- bfd_put_16 (abfd, insn, hit_data);
- if (sym_value < (bfd_vma) -0x1000 || sym_value >= 0x1000)
- return bfd_reloc_overflow;
- break;
- default:
- abort ();
- break;
- }
+ /* If the instruction is not mov.l NN,rN, we don't know what to
+ do. */
+ if ((insn & 0xf000) != 0xd000)
+ {
+ ((*_bfd_error_handler)
+ (_("%s: 0x%lx: warning: R_SH_USES points to unrecognized insn 0x%x"),
+ bfd_archive_filename (abfd), (unsigned long) irel->r_offset, insn));
+ continue;
+ }
+
+ /* Get the address from which the register is being loaded. The
+ displacement in the mov.l instruction is quadrupled. It is a
+ displacement from four bytes after the movl instruction, but,
+ before adding in the PC address, two least significant bits
+ of the PC are cleared. We assume that the section is aligned
+ on a four byte boundary. */
+ paddr = insn & 0xff;
+ paddr *= 4;
+ paddr += (laddr + 4) &~ (bfd_vma) 3;
+ if (paddr >= sec->_raw_size)
+ {
+ ((*_bfd_error_handler)
+ (_("%s: 0x%lx: warning: bad R_SH_USES load offset"),
+ bfd_archive_filename (abfd), (unsigned long) irel->r_offset));
+ continue;
+ }
+
+ /* Get the reloc for the address from which the register is
+ being loaded. This reloc will tell us which function is
+ actually being called. */
+ for (irelfn = internal_relocs; irelfn < irelend; irelfn++)
+ if (irelfn->r_offset == paddr
+ && ELF32_R_TYPE (irelfn->r_info) == (int) R_SH_DIR32)
+ break;
+ if (irelfn >= irelend)
+ {
+ ((*_bfd_error_handler)
+ (_("%s: 0x%lx: warning: could not find expected reloc"),
+ bfd_archive_filename (abfd), (unsigned long) paddr));
+ continue;
+ }
+
+ /* Read this BFD's symbols if we haven't done so already. */
+ if (extsyms == NULL)
+ {
+ if (symtab_hdr->contents != NULL)
+ extsyms = (Elf32_External_Sym *) symtab_hdr->contents;
+ else
+ {
+ bfd_size_type amt;
+
+ amt = symtab_hdr->sh_info;
+ amt *= sizeof (Elf32_External_Sym);
+ extsyms = (Elf32_External_Sym *) bfd_malloc (amt);
+ if (extsyms == NULL)
+ goto error_return;
+ free_extsyms = extsyms;
+ if (bfd_seek (abfd, symtab_hdr->sh_offset, SEEK_SET) != 0
+ || bfd_bread ((PTR) extsyms, amt, abfd) != amt)
+ goto error_return;
+ symtab_hdr->contents = (bfd_byte *) extsyms;
+ }
+
+ if (shndx_hdr->sh_size != 0)
+ {
+ bfd_size_type amt;
+
+ amt = symtab_hdr->sh_info;
+ amt *= sizeof (Elf_External_Sym_Shndx);
+ shndx_buf = (Elf_External_Sym_Shndx *) bfd_malloc (amt);
+ if (shndx_buf == NULL)
+ goto error_return;
+ if (bfd_seek (abfd, shndx_hdr->sh_offset, SEEK_SET) != 0
+ || bfd_bread ((PTR) shndx_buf, amt, abfd) != amt)
+ goto error_return;
+ shndx_hdr->contents = (bfd_byte *) shndx_buf;
+ }
+ }
+
+ /* Get the value of the symbol referred to by the reloc. */
+ if (ELF32_R_SYM (irelfn->r_info) < symtab_hdr->sh_info)
+ {
+ /* A local symbol. */
+ Elf32_External_Sym *esym;
+ Elf_External_Sym_Shndx *shndx;
+ Elf_Internal_Sym isym;
+
+ esym = extsyms + ELF32_R_SYM (irelfn->r_info);
+ shndx = shndx_buf + (shndx_buf ? ELF32_R_SYM (irelfn->r_info) : 0);
+ bfd_elf32_swap_symbol_in (abfd, (const PTR) esym, (const PTR) shndx,
+ &isym);
+
+ if (isym.st_shndx
+ != (unsigned int) _bfd_elf_section_from_bfd_section (abfd, sec))
+ {
+ ((*_bfd_error_handler)
+ (_("%s: 0x%lx: warning: symbol in unexpected section"),
+ bfd_archive_filename (abfd), (unsigned long) paddr));
+ continue;
+ }
+
+ symval = (isym.st_value
+ + sec->output_section->vma
+ + sec->output_offset);
+ }
+ else
+ {
+ unsigned long indx;
+ struct elf_link_hash_entry *h;
+
+ indx = ELF32_R_SYM (irelfn->r_info) - symtab_hdr->sh_info;
+ h = elf_sym_hashes (abfd)[indx];
+ BFD_ASSERT (h != NULL);
+ if (h->root.type != bfd_link_hash_defined
+ && h->root.type != bfd_link_hash_defweak)
+ {
+ /* This appears to be a reference to an undefined
+ symbol. Just ignore it--it will be caught by the
+ regular reloc processing. */
+ continue;
+ }
+
+ symval = (h->root.u.def.value
+ + h->root.u.def.section->output_section->vma
+ + h->root.u.def.section->output_offset);
+ }
+
+ symval += bfd_get_32 (abfd, contents + paddr);
+
+ /* See if this function call can be shortened. */
+ foff = (symval
+ - (irel->r_offset
+ + sec->output_section->vma
+ + sec->output_offset
+ + 4));
+ if (foff < -0x1000 || foff >= 0x1000)
+ {
+ /* After all that work, we can't shorten this function call. */
+ continue;
+ }
+
+ /* Shorten the function call. */
+
+ /* For simplicity of coding, we are going to modify the section
+ contents, the section relocs, and the BFD symbol table. We
+ must tell the rest of the code not to free up this
+ information. It would be possible to instead create a table
+ of changes which have to be made, as is done in coff-mips.c;
+ that would be more work, but would require less memory when
+ the linker is run. */
+
+ elf_section_data (sec)->relocs = internal_relocs;
+ free_relocs = NULL;
+
+ elf_section_data (sec)->this_hdr.contents = contents;
+ free_contents = NULL;
+
+ free_extsyms = NULL;
+
+ /* Replace the jsr with a bsr. */
+
+ /* Change the R_SH_USES reloc into an R_SH_IND12W reloc, and
+ replace the jsr with a bsr. */
+ irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irelfn->r_info), R_SH_IND12W);
+ if (ELF32_R_SYM (irelfn->r_info) < symtab_hdr->sh_info)
+ {
+ /* If this needs to be changed because of future relaxing,
+ it will be handled here like other internal IND12W
+ relocs. */
+ bfd_put_16 (abfd,
+ (bfd_vma) 0xb000 | ((foff >> 1) & 0xfff),
+ contents + irel->r_offset);
+ }
+ else
+ {
+ /* We can't fully resolve this yet, because the external
+ symbol value may be changed by future relaxing. We let
+ the final link phase handle it. */
+ bfd_put_16 (abfd, (bfd_vma) 0xb000, contents + irel->r_offset);
+ }
+
+ /* See if there is another R_SH_USES reloc referring to the same
+ register load. */
+ for (irelscan = internal_relocs; irelscan < irelend; irelscan++)
+ if (ELF32_R_TYPE (irelscan->r_info) == (int) R_SH_USES
+ && laddr == irelscan->r_offset + 4 + irelscan->r_addend)
+ break;
+ if (irelscan < irelend)
+ {
+ /* Some other function call depends upon this register load,
+ and we have not yet converted that function call.
+ Indeed, we may never be able to convert it. There is
+ nothing else we can do at this point. */
+ continue;
+ }
+
+ /* Look for a R_SH_COUNT reloc on the location where the
+ function address is stored. Do this before deleting any
+ bytes, to avoid confusion about the address. */
+ for (irelcount = internal_relocs; irelcount < irelend; irelcount++)
+ if (irelcount->r_offset == paddr
+ && ELF32_R_TYPE (irelcount->r_info) == (int) R_SH_COUNT)
+ break;
+
+ /* Delete the register load. */
+ if (! sh_elf_relax_delete_bytes (abfd, sec, laddr, 2))
+ goto error_return;
+
+ /* That will change things, so, just in case it permits some
+ other function call to come within range, we should relax
+ again. Note that this is not required, and it may be slow. */
+ *again = true;
+
+ /* Now check whether we got a COUNT reloc. */
+ if (irelcount >= irelend)
+ {
+ ((*_bfd_error_handler)
+ (_("%s: 0x%lx: warning: could not find expected COUNT reloc"),
+ bfd_archive_filename (abfd), (unsigned long) paddr));
+ continue;
+ }
+
+ /* The number of uses is stored in the r_addend field. We've
+ just deleted one. */
+ if (irelcount->r_addend == 0)
+ {
+ ((*_bfd_error_handler) (_("%s: 0x%lx: warning: bad count"),
+ bfd_archive_filename (abfd),
+ (unsigned long) paddr));
+ continue;
+ }
+
+ --irelcount->r_addend;
+
+ /* If there are no more uses, we can delete the address. Reload
+ the address from irelfn, in case it was changed by the
+ previous call to sh_elf_relax_delete_bytes. */
+ if (irelcount->r_addend == 0)
+ {
+ if (! sh_elf_relax_delete_bytes (abfd, sec, irelfn->r_offset, 4))
+ goto error_return;
+ }
- return bfd_reloc_ok;
-}
+ /* We've done all we can with that function call. */
+ }
-/* This function is used for relocs which are only used for relaxing,
- which the linker should otherwise ignore. */
+ /* Look for load and store instructions that we can align on four
+ byte boundaries. */
+ if (have_code)
+ {
+ boolean swapped;
-static bfd_reloc_status_type
-sh_elf_ignore_reloc (abfd, reloc_entry, symbol, data, input_section,
- output_bfd, error_message)
- bfd *abfd ATTRIBUTE_UNUSED;
- arelent *reloc_entry;
- asymbol *symbol ATTRIBUTE_UNUSED;
- PTR data ATTRIBUTE_UNUSED;
- asection *input_section;
- bfd *output_bfd;
- char **error_message ATTRIBUTE_UNUSED;
-{
- if (output_bfd != NULL)
- reloc_entry->address += input_section->output_offset;
- return bfd_reloc_ok;
-}
+ /* Get the section contents. */
+ if (contents == NULL)
+ {
+ if (elf_section_data (sec)->this_hdr.contents != NULL)
+ contents = elf_section_data (sec)->this_hdr.contents;
+ else
+ {
+ contents = (bfd_byte *) bfd_malloc (sec->_raw_size);
+ if (contents == NULL)
+ goto error_return;
+ free_contents = contents;
-/* This structure is used to map BFD reloc codes to SH ELF relocs. */
+ if (! bfd_get_section_contents (abfd, sec, contents,
+ (file_ptr) 0, sec->_raw_size))
+ goto error_return;
+ }
+ }
-struct elf_reloc_map
-{
- bfd_reloc_code_real_type bfd_reloc_val;
- unsigned char elf_reloc_val;
-};
+ if (! sh_elf_align_loads (abfd, sec, internal_relocs, contents,
+ &swapped))
+ goto error_return;
-/* An array mapping BFD reloc codes to SH ELF relocs. */
+ if (swapped)
+ {
+ elf_section_data (sec)->relocs = internal_relocs;
+ free_relocs = NULL;
-static const struct elf_reloc_map sh_reloc_map[] =
-{
- { BFD_RELOC_NONE, R_SH_NONE },
- { BFD_RELOC_32, R_SH_DIR32 },
- { BFD_RELOC_CTOR, R_SH_DIR32 },
- { BFD_RELOC_32_PCREL, R_SH_REL32 },
- { BFD_RELOC_SH_PCDISP8BY2, R_SH_DIR8WPN },
- { BFD_RELOC_SH_PCDISP12BY2, R_SH_IND12W },
- { BFD_RELOC_SH_PCRELIMM8BY2, R_SH_DIR8WPZ },
- { BFD_RELOC_SH_PCRELIMM8BY4, R_SH_DIR8WPL },
- { BFD_RELOC_8_PCREL, R_SH_SWITCH8 },
- { BFD_RELOC_SH_SWITCH16, R_SH_SWITCH16 },
- { BFD_RELOC_SH_SWITCH32, R_SH_SWITCH32 },
- { BFD_RELOC_SH_USES, R_SH_USES },
- { BFD_RELOC_SH_COUNT, R_SH_COUNT },
- { BFD_RELOC_SH_ALIGN, R_SH_ALIGN },
- { BFD_RELOC_SH_CODE, R_SH_CODE },
- { BFD_RELOC_SH_DATA, R_SH_DATA },
- { BFD_RELOC_SH_LABEL, R_SH_LABEL },
- { BFD_RELOC_VTABLE_INHERIT, R_SH_GNU_VTINHERIT },
- { BFD_RELOC_VTABLE_ENTRY, R_SH_GNU_VTENTRY },
- { BFD_RELOC_SH_LOOP_START, R_SH_LOOP_START },
- { BFD_RELOC_SH_LOOP_END, R_SH_LOOP_END },
-};
+ elf_section_data (sec)->this_hdr.contents = contents;
+ free_contents = NULL;
-/* Given a BFD reloc code, return the howto structure for the
- corresponding SH ELf reloc. */
+ free_extsyms = NULL;
+ }
+ }
-static reloc_howto_type *
-sh_elf_reloc_type_lookup (abfd, code)
- bfd *abfd ATTRIBUTE_UNUSED;
- bfd_reloc_code_real_type code;
-{
- unsigned int i;
+ if (free_relocs != NULL)
+ free (free_relocs);
- for (i = 0; i < sizeof (sh_reloc_map) / sizeof (struct elf_reloc_map); i++)
+ if (free_contents != NULL)
{
- if (sh_reloc_map[i].bfd_reloc_val == code)
- return &sh_elf_howto_table[(int) sh_reloc_map[i].elf_reloc_val];
+ if (! link_info->keep_memory)
+ free (free_contents);
+ else
+ {
+ /* Cache the section contents for elf_link_input_bfd. */
+ elf_section_data (sec)->this_hdr.contents = contents;
+ }
}
- return NULL;
-}
-
-/* Given an ELF reloc, fill in the howto field of a relent. */
+ if (shndx_buf != NULL)
+ {
+ shndx_hdr->contents = NULL;
+ free (shndx_buf);
+ }
-static void
-sh_elf_info_to_howto (abfd, cache_ptr, dst)
- bfd *abfd ATTRIBUTE_UNUSED;
- arelent *cache_ptr;
- Elf_Internal_Rela *dst;
-{
- unsigned int r;
+ if (free_extsyms != NULL)
+ {
+ if (! link_info->keep_memory)
+ {
+ symtab_hdr->contents = NULL;
+ free (free_extsyms);
+ }
+ }
- r = ELF32_R_TYPE (dst->r_info);
+ return true;
- BFD_ASSERT (r < (unsigned int) R_SH_max);
- BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC || r > R_SH_LAST_INVALID_RELOC);
+ error_return:
+ if (free_relocs != NULL)
+ free (free_relocs);
+ if (free_contents != NULL)
+ free (free_contents);
+ if (shndx_buf != NULL)
+ {
+ shndx_hdr->contents = NULL;
+ free (shndx_buf);
+ }
+ if (free_extsyms != NULL)
+ {
+ symtab_hdr->contents = NULL;
+ free (free_extsyms);
+ }
- cache_ptr->howto = &sh_elf_howto_table[r];
+ return false;
}
-\f
-/* This function handles relaxing for SH ELF. See the corresponding
- function in coff-sh.c for a description of what this does. FIXME:
- There is a lot of duplication here between this code and the COFF
- specific code. The format of relocs and symbols is wound deeply
- into this code, but it would still be better if the duplication
- could be eliminated somehow. Note in particular that although both
- functions use symbols like R_SH_CODE, those symbols have different
- values; in coff-sh.c they come from include/coff/sh.h, whereas here
- they come from enum elf_sh_reloc_type in include/elf/sh.h. */
-static boolean
-sh_elf_relax_section (abfd, sec, link_info, again)
+/* Delete some bytes from a section while relaxing. FIXME: There is a
+ lot of duplication between this function and sh_relax_delete_bytes
+ in coff-sh.c. */
+
+static boolean
+sh_elf_relax_delete_bytes (abfd, sec, addr, count)
bfd *abfd;
asection *sec;
- struct bfd_link_info *link_info;
- boolean *again;
+ bfd_vma addr;
+ int count;
{
Elf_Internal_Shdr *symtab_hdr;
- Elf_Internal_Rela *internal_relocs;
- Elf_Internal_Rela *free_relocs = NULL;
- boolean have_code;
+ Elf_Internal_Shdr *shndx_hdr;
+ Elf32_External_Sym *extsyms;
+ unsigned int sec_shndx;
+ bfd_byte *contents;
Elf_Internal_Rela *irel, *irelend;
- bfd_byte *contents = NULL;
- bfd_byte *free_contents = NULL;
- Elf32_External_Sym *extsyms = NULL;
- Elf32_External_Sym *free_extsyms = NULL;
+ Elf_Internal_Rela *irelalign;
+ bfd_vma toaddr;
+ Elf32_External_Sym *esym, *esymend;
+ Elf_External_Sym_Shndx *shndx_buf, *shndx;
+ struct elf_link_hash_entry **sym_hashes;
+ struct elf_link_hash_entry **end_hashes;
+ unsigned int symcount;
+ asection *o;
- *again = false;
+ symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
+ extsyms = (Elf32_External_Sym *) symtab_hdr->contents;
- if (link_info->relocateable
- || (sec->flags & SEC_RELOC) == 0
- || sec->reloc_count == 0)
- return true;
+ shndx_hdr = &elf_tdata (abfd)->symtab_shndx_hdr;
+ shndx_buf = (Elf_External_Sym_Shndx *) shndx_hdr->contents;
- /* If this is the first time we have been called for this section,
- initialize the cooked size. */
- if (sec->_cooked_size == 0)
- sec->_cooked_size = sec->_raw_size;
+ sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
- symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
+ contents = elf_section_data (sec)->this_hdr.contents;
- internal_relocs = (_bfd_elf32_link_read_relocs
- (abfd, sec, (PTR) NULL, (Elf_Internal_Rela *) NULL,
- link_info->keep_memory));
- if (internal_relocs == NULL)
- goto error_return;
- if (! link_info->keep_memory)
- free_relocs = internal_relocs;
+ /* The deletion must stop at the next ALIGN reloc for an aligment
+ power larger than the number of bytes we are deleting. */
- have_code = false;
+ irelalign = NULL;
+ toaddr = sec->_cooked_size;
- irelend = internal_relocs + sec->reloc_count;
- for (irel = internal_relocs; irel < irelend; irel++)
+ irel = elf_section_data (sec)->relocs;
+ irelend = irel + sec->reloc_count;
+ for (; irel < irelend; irel++)
{
- bfd_vma laddr, paddr, symval;
- unsigned short insn;
- Elf_Internal_Rela *irelfn, *irelscan, *irelcount;
- bfd_signed_vma foff;
+ if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_ALIGN
+ && irel->r_offset > addr
+ && count < (1 << irel->r_addend))
+ {
+ irelalign = irel;
+ toaddr = irel->r_offset;
+ break;
+ }
+ }
- if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_CODE)
- have_code = true;
+ /* Actually delete the bytes. */
+ memmove (contents + addr, contents + addr + count,
+ (size_t) (toaddr - addr - count));
+ if (irelalign == NULL)
+ sec->_cooked_size -= count;
+ else
+ {
+ int i;
+
+#define NOP_OPCODE (0x0009)
+
+ BFD_ASSERT ((count & 1) == 0);
+ for (i = 0; i < count; i += 2)
+ bfd_put_16 (abfd, (bfd_vma) NOP_OPCODE, contents + toaddr - count + i);
+ }
+
+ /* Adjust all the relocs. */
+ for (irel = elf_section_data (sec)->relocs; irel < irelend; irel++)
+ {
+ bfd_vma nraddr, stop;
+ bfd_vma start = 0;
+ int insn = 0;
+ Elf_Internal_Sym sym;
+ int off, adjust, oinsn;
+ bfd_signed_vma voff = 0;
+ boolean overflow;
+
+ /* Get the new reloc address. */
+ nraddr = irel->r_offset;
+ if ((irel->r_offset > addr
+ && irel->r_offset < toaddr)
+ || (ELF32_R_TYPE (irel->r_info) == (int) R_SH_ALIGN
+ && irel->r_offset == toaddr))
+ nraddr -= count;
- if (ELF32_R_TYPE (irel->r_info) != (int) R_SH_USES)
- continue;
+ /* See if this reloc was for the bytes we have deleted, in which
+ case we no longer care about it. Don't delete relocs which
+ represent addresses, though. */
+ if (irel->r_offset >= addr
+ && irel->r_offset < addr + count
+ && ELF32_R_TYPE (irel->r_info) != (int) R_SH_ALIGN
+ && ELF32_R_TYPE (irel->r_info) != (int) R_SH_CODE
+ && ELF32_R_TYPE (irel->r_info) != (int) R_SH_DATA
+ && ELF32_R_TYPE (irel->r_info) != (int) R_SH_LABEL)
+ irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
+ (int) R_SH_NONE);
- /* Get the section contents. */
- if (contents == NULL)
+ /* If this is a PC relative reloc, see if the range it covers
+ includes the bytes we have deleted. */
+ switch ((enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info))
{
- if (elf_section_data (sec)->this_hdr.contents != NULL)
- contents = elf_section_data (sec)->this_hdr.contents;
- else
- {
- contents = (bfd_byte *) bfd_malloc (sec->_raw_size);
- if (contents == NULL)
- goto error_return;
- free_contents = contents;
+ default:
+ break;
- if (! bfd_get_section_contents (abfd, sec, contents,
- (file_ptr) 0, sec->_raw_size))
- goto error_return;
- }
+ case R_SH_DIR8WPN:
+ case R_SH_IND12W:
+ case R_SH_DIR8WPZ:
+ case R_SH_DIR8WPL:
+ start = irel->r_offset;
+ insn = bfd_get_16 (abfd, contents + nraddr);
+ break;
}
- /* The r_addend field of the R_SH_USES reloc will point us to
- the register load. The 4 is because the r_addend field is
- computed as though it were a jump offset, which are based
- from 4 bytes after the jump instruction. */
- laddr = irel->r_offset + 4 + irel->r_addend;
- if (laddr >= sec->_raw_size)
+ switch ((enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info))
{
- (*_bfd_error_handler) (_("%s: 0x%lx: warning: bad R_SH_USES offset"),
- bfd_get_filename (abfd),
- (unsigned long) irel->r_offset);
- continue;
- }
- insn = bfd_get_16 (abfd, contents + laddr);
+ default:
+ start = stop = addr;
+ break;
- /* If the instruction is not mov.l NN,rN, we don't know what to
- do. */
- if ((insn & 0xf000) != 0xd000)
- {
- ((*_bfd_error_handler)
- (_("%s: 0x%lx: warning: R_SH_USES points to unrecognized insn 0x%x"),
- bfd_get_filename (abfd), (unsigned long) irel->r_offset, insn));
- continue;
- }
+ case R_SH_DIR32:
+ /* If this reloc is against a symbol defined in this
+ section, and the symbol will not be adjusted below, we
+ must check the addend to see it will put the value in
+ range to be adjusted, and hence must be changed. */
+ if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
+ {
+ esym = extsyms + ELF32_R_SYM (irel->r_info);
+ shndx = shndx_buf + (shndx_buf ? ELF32_R_SYM (irel->r_info) : 0);
+ bfd_elf32_swap_symbol_in (abfd, (const PTR) esym,
+ (const PTR) shndx, &sym);
- /* Get the address from which the register is being loaded. The
- displacement in the mov.l instruction is quadrupled. It is a
- displacement from four bytes after the movl instruction, but,
- before adding in the PC address, two least significant bits
- of the PC are cleared. We assume that the section is aligned
- on a four byte boundary. */
- paddr = insn & 0xff;
- paddr *= 4;
- paddr += (laddr + 4) &~ 3;
- if (paddr >= sec->_raw_size)
- {
- ((*_bfd_error_handler)
- (_("%s: 0x%lx: warning: bad R_SH_USES load offset"),
- bfd_get_filename (abfd), (unsigned long) irel->r_offset));
- continue;
- }
+ if (sym.st_shndx == sec_shndx
+ && (sym.st_value <= addr
+ || sym.st_value >= toaddr))
+ {
+ bfd_vma val;
- /* Get the reloc for the address from which the register is
- being loaded. This reloc will tell us which function is
- actually being called. */
- for (irelfn = internal_relocs; irelfn < irelend; irelfn++)
- if (irelfn->r_offset == paddr
- && ELF32_R_TYPE (irelfn->r_info) == (int) R_SH_DIR32)
+ val = bfd_get_32 (abfd, contents + nraddr);
+ val += sym.st_value;
+ if (val > addr && val < toaddr)
+ bfd_put_32 (abfd, val - count, contents + nraddr);
+ }
+ }
+ start = stop = addr;
break;
- if (irelfn >= irelend)
- {
- ((*_bfd_error_handler)
- (_("%s: 0x%lx: warning: could not find expected reloc"),
- bfd_get_filename (abfd), (unsigned long) paddr));
- continue;
- }
- /* Read this BFD's symbols if we haven't done so already. */
- if (extsyms == NULL)
- {
- if (symtab_hdr->contents != NULL)
- extsyms = (Elf32_External_Sym *) symtab_hdr->contents;
+ case R_SH_DIR8WPN:
+ off = insn & 0xff;
+ if (off & 0x80)
+ off -= 0x100;
+ stop = (bfd_vma) ((bfd_signed_vma) start + 4 + off * 2);
+ break;
+
+ case R_SH_IND12W:
+ if (ELF32_R_SYM (irel->r_info) >= symtab_hdr->sh_info)
+ start = stop = addr;
else
{
- extsyms = ((Elf32_External_Sym *)
- bfd_malloc (symtab_hdr->sh_size));
- if (extsyms == NULL)
- goto error_return;
- free_extsyms = extsyms;
- if (bfd_seek (abfd, symtab_hdr->sh_offset, SEEK_SET) != 0
- || (bfd_read (extsyms, 1, symtab_hdr->sh_size, abfd)
- != symtab_hdr->sh_size))
- goto error_return;
+ off = insn & 0xfff;
+ if (off & 0x800)
+ off -= 0x1000;
+ stop = (bfd_vma) ((bfd_signed_vma) start + 4 + off * 2);
}
- }
+ break;
- /* Get the value of the symbol referred to by the reloc. */
- if (ELF32_R_SYM (irelfn->r_info) < symtab_hdr->sh_info)
- {
- Elf_Internal_Sym isym;
+ case R_SH_DIR8WPZ:
+ off = insn & 0xff;
+ stop = start + 4 + off * 2;
+ break;
- /* A local symbol. */
- bfd_elf32_swap_symbol_in (abfd,
- extsyms + ELF32_R_SYM (irelfn->r_info),
- &isym);
+ case R_SH_DIR8WPL:
+ off = insn & 0xff;
+ stop = (start & ~(bfd_vma) 3) + 4 + off * 4;
+ break;
- if (isym.st_shndx != _bfd_elf_section_from_bfd_section (abfd, sec))
- {
- ((*_bfd_error_handler)
- (_("%s: 0x%lx: warning: symbol in unexpected section"),
- bfd_get_filename (abfd), (unsigned long) paddr));
- continue;
- }
+ case R_SH_SWITCH8:
+ case R_SH_SWITCH16:
+ case R_SH_SWITCH32:
+ /* These relocs types represent
+ .word L2-L1
+ The r_addend field holds the difference between the reloc
+ address and L1. That is the start of the reloc, and
+ adding in the contents gives us the top. We must adjust
+ both the r_offset field and the section contents.
+ N.B. in gas / coff bfd, the elf bfd r_addend is called r_offset,
+ and the elf bfd r_offset is called r_vaddr. */
- symval = (isym.st_value
- + sec->output_section->vma
- + sec->output_offset);
+ stop = irel->r_offset;
+ start = (bfd_vma) ((bfd_signed_vma) stop - (long) irel->r_addend);
+
+ if (start > addr
+ && start < toaddr
+ && (stop <= addr || stop >= toaddr))
+ irel->r_addend += count;
+ else if (stop > addr
+ && stop < toaddr
+ && (start <= addr || start >= toaddr))
+ irel->r_addend -= count;
+
+ if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_SWITCH16)
+ voff = bfd_get_signed_16 (abfd, contents + nraddr);
+ else if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_SWITCH8)
+ voff = bfd_get_8 (abfd, contents + nraddr);
+ else
+ voff = bfd_get_signed_32 (abfd, contents + nraddr);
+ stop = (bfd_vma) ((bfd_signed_vma) start + voff);
+
+ break;
+
+ case R_SH_USES:
+ start = irel->r_offset;
+ stop = (bfd_vma) ((bfd_signed_vma) start
+ + (long) irel->r_addend
+ + 4);
+ break;
}
+
+ if (start > addr
+ && start < toaddr
+ && (stop <= addr || stop >= toaddr))
+ adjust = count;
+ else if (stop > addr
+ && stop < toaddr
+ && (start <= addr || start >= toaddr))
+ adjust = - count;
else
- {
- unsigned long indx;
- struct elf_link_hash_entry *h;
+ adjust = 0;
- indx = ELF32_R_SYM (irelfn->r_info) - symtab_hdr->sh_info;
- h = elf_sym_hashes (abfd)[indx];
- BFD_ASSERT (h != NULL);
- if (h->root.type != bfd_link_hash_defined
- && h->root.type != bfd_link_hash_defweak)
+ if (adjust != 0)
+ {
+ oinsn = insn;
+ overflow = false;
+ switch ((enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info))
{
- /* This appears to be a reference to an undefined
- symbol. Just ignore it--it will be caught by the
- regular reloc processing. */
- continue;
- }
+ default:
+ abort ();
+ break;
- symval = (h->root.u.def.value
- + h->root.u.def.section->output_section->vma
- + h->root.u.def.section->output_offset);
- }
+ case R_SH_DIR8WPN:
+ case R_SH_DIR8WPZ:
+ insn += adjust / 2;
+ if ((oinsn & 0xff00) != (insn & 0xff00))
+ overflow = true;
+ bfd_put_16 (abfd, (bfd_vma) insn, contents + nraddr);
+ break;
+
+ case R_SH_IND12W:
+ insn += adjust / 2;
+ if ((oinsn & 0xf000) != (insn & 0xf000))
+ overflow = true;
+ bfd_put_16 (abfd, (bfd_vma) insn, contents + nraddr);
+ break;
+
+ case R_SH_DIR8WPL:
+ BFD_ASSERT (adjust == count || count >= 4);
+ if (count >= 4)
+ insn += adjust / 4;
+ else
+ {
+ if ((irel->r_offset & 3) == 0)
+ ++insn;
+ }
+ if ((oinsn & 0xff00) != (insn & 0xff00))
+ overflow = true;
+ bfd_put_16 (abfd, (bfd_vma) insn, contents + nraddr);
+ break;
+
+ case R_SH_SWITCH8:
+ voff += adjust;
+ if (voff < 0 || voff >= 0xff)
+ overflow = true;
+ bfd_put_8 (abfd, voff, contents + nraddr);
+ break;
- symval += bfd_get_32 (abfd, contents + paddr);
+ case R_SH_SWITCH16:
+ voff += adjust;
+ if (voff < - 0x8000 || voff >= 0x8000)
+ overflow = true;
+ bfd_put_signed_16 (abfd, (bfd_vma) voff, contents + nraddr);
+ break;
- /* See if this function call can be shortened. */
- foff = (symval
- - (irel->r_offset
- + sec->output_section->vma
- + sec->output_offset
- + 4));
- if (foff < -0x1000 || foff >= 0x1000)
- {
- /* After all that work, we can't shorten this function call. */
- continue;
- }
+ case R_SH_SWITCH32:
+ voff += adjust;
+ bfd_put_signed_32 (abfd, (bfd_vma) voff, contents + nraddr);
+ break;
- /* Shorten the function call. */
+ case R_SH_USES:
+ irel->r_addend += adjust;
+ break;
+ }
- /* For simplicity of coding, we are going to modify the section
- contents, the section relocs, and the BFD symbol table. We
- must tell the rest of the code not to free up this
- information. It would be possible to instead create a table
- of changes which have to be made, as is done in coff-mips.c;
- that would be more work, but would require less memory when
- the linker is run. */
+ if (overflow)
+ {
+ ((*_bfd_error_handler)
+ (_("%s: 0x%lx: fatal: reloc overflow while relaxing"),
+ bfd_archive_filename (abfd), (unsigned long) irel->r_offset));
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+ }
- elf_section_data (sec)->relocs = internal_relocs;
- free_relocs = NULL;
+ irel->r_offset = nraddr;
+ }
- elf_section_data (sec)->this_hdr.contents = contents;
- free_contents = NULL;
+ /* Look through all the other sections. If there contain any IMM32
+ relocs against internal symbols which we are not going to adjust
+ below, we may need to adjust the addends. */
+ for (o = abfd->sections; o != NULL; o = o->next)
+ {
+ Elf_Internal_Rela *internal_relocs;
+ Elf_Internal_Rela *irelscan, *irelscanend;
+ bfd_byte *ocontents;
- symtab_hdr->contents = (bfd_byte *) extsyms;
- free_extsyms = NULL;
+ if (o == sec
+ || (o->flags & SEC_RELOC) == 0
+ || o->reloc_count == 0)
+ continue;
- /* Replace the jsr with a bsr. */
+ /* We always cache the relocs. Perhaps, if info->keep_memory is
+ false, we should free them, if we are permitted to, when we
+ leave sh_coff_relax_section. */
+ internal_relocs = (_bfd_elf32_link_read_relocs
+ (abfd, o, (PTR) NULL, (Elf_Internal_Rela *) NULL,
+ true));
+ if (internal_relocs == NULL)
+ return false;
- /* Change the R_SH_USES reloc into an R_SH_IND12W reloc, and
- replace the jsr with a bsr. */
- irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irelfn->r_info), R_SH_IND12W);
- if (ELF32_R_SYM (irelfn->r_info) < symtab_hdr->sh_info)
- {
- /* If this needs to be changed because of future relaxing,
- it will be handled here like other internal IND12W
- relocs. */
- bfd_put_16 (abfd,
- 0xb000 | ((foff >> 1) & 0xfff),
- contents + irel->r_offset);
- }
- else
+ ocontents = NULL;
+ irelscanend = internal_relocs + o->reloc_count;
+ for (irelscan = internal_relocs; irelscan < irelscanend; irelscan++)
{
- /* We can't fully resolve this yet, because the external
- symbol value may be changed by future relaxing. We let
- the final link phase handle it. */
- bfd_put_16 (abfd, 0xb000, contents + irel->r_offset);
- }
+ Elf_Internal_Sym sym;
- /* See if there is another R_SH_USES reloc referring to the same
- register load. */
- for (irelscan = internal_relocs; irelscan < irelend; irelscan++)
- if (ELF32_R_TYPE (irelscan->r_info) == (int) R_SH_USES
- && laddr == irelscan->r_offset + 4 + irelscan->r_addend)
- break;
- if (irelscan < irelend)
- {
- /* Some other function call depends upon this register load,
- and we have not yet converted that function call.
- Indeed, we may never be able to convert it. There is
- nothing else we can do at this point. */
- continue;
- }
+ /* Dwarf line numbers use R_SH_SWITCH32 relocs. */
+ if (ELF32_R_TYPE (irelscan->r_info) == (int) R_SH_SWITCH32)
+ {
+ bfd_vma start, stop;
+ bfd_signed_vma voff;
- /* Look for a R_SH_COUNT reloc on the location where the
- function address is stored. Do this before deleting any
- bytes, to avoid confusion about the address. */
- for (irelcount = internal_relocs; irelcount < irelend; irelcount++)
- if (irelcount->r_offset == paddr
- && ELF32_R_TYPE (irelcount->r_info) == (int) R_SH_COUNT)
- break;
+ if (ocontents == NULL)
+ {
+ if (elf_section_data (o)->this_hdr.contents != NULL)
+ ocontents = elf_section_data (o)->this_hdr.contents;
+ else
+ {
+ /* We always cache the section contents.
+ Perhaps, if info->keep_memory is false, we
+ should free them, if we are permitted to,
+ when we leave sh_coff_relax_section. */
+ ocontents = (bfd_byte *) bfd_malloc (o->_raw_size);
+ if (ocontents == NULL)
+ return false;
+ if (! bfd_get_section_contents (abfd, o, ocontents,
+ (file_ptr) 0,
+ o->_raw_size))
+ return false;
+ elf_section_data (o)->this_hdr.contents = ocontents;
+ }
+ }
- /* Delete the register load. */
- if (! sh_elf_relax_delete_bytes (abfd, sec, laddr, 2))
- goto error_return;
+ stop = irelscan->r_offset;
+ start
+ = (bfd_vma) ((bfd_signed_vma) stop - (long) irelscan->r_addend);
- /* That will change things, so, just in case it permits some
- other function call to come within range, we should relax
- again. Note that this is not required, and it may be slow. */
- *again = true;
+ /* STOP is in a different section, so it won't change. */
+ if (start > addr && start < toaddr)
+ irelscan->r_addend += count;
- /* Now check whether we got a COUNT reloc. */
- if (irelcount >= irelend)
- {
- ((*_bfd_error_handler)
- (_("%s: 0x%lx: warning: could not find expected COUNT reloc"),
- bfd_get_filename (abfd), (unsigned long) paddr));
- continue;
- }
+ voff = bfd_get_signed_32 (abfd, ocontents + irelscan->r_offset);
+ stop = (bfd_vma) ((bfd_signed_vma) start + voff);
- /* The number of uses is stored in the r_addend field. We've
- just deleted one. */
- if (irelcount->r_addend == 0)
- {
- ((*_bfd_error_handler) (_("%s: 0x%lx: warning: bad count"),
- bfd_get_filename (abfd),
- (unsigned long) paddr));
- continue;
- }
+ if (start > addr
+ && start < toaddr
+ && (stop <= addr || stop >= toaddr))
+ bfd_put_signed_32 (abfd, (bfd_vma) voff + count,
+ ocontents + irelscan->r_offset);
+ else if (stop > addr
+ && stop < toaddr
+ && (start <= addr || start >= toaddr))
+ bfd_put_signed_32 (abfd, (bfd_vma) voff - count,
+ ocontents + irelscan->r_offset);
+ }
- --irelcount->r_addend;
+ if (ELF32_R_TYPE (irelscan->r_info) != (int) R_SH_DIR32)
+ continue;
- /* If there are no more uses, we can delete the address. Reload
- the address from irelfn, in case it was changed by the
- previous call to sh_elf_relax_delete_bytes. */
- if (irelcount->r_addend == 0)
- {
- if (! sh_elf_relax_delete_bytes (abfd, sec, irelfn->r_offset, 4))
- goto error_return;
- }
+ if (ELF32_R_SYM (irelscan->r_info) >= symtab_hdr->sh_info)
+ continue;
- /* We've done all we can with that function call. */
- }
- /* Look for load and store instructions that we can align on four
- byte boundaries. */
- if (have_code)
- {
- boolean swapped;
+ esym = extsyms + ELF32_R_SYM (irelscan->r_info);
+ shndx = shndx_buf + (shndx_buf ? ELF32_R_SYM (irelscan->r_info) : 0);
+ bfd_elf32_swap_symbol_in (abfd, (const PTR) esym, (const PTR) shndx,
+ &sym);
- /* Get the section contents. */
- if (contents == NULL)
- {
- if (elf_section_data (sec)->this_hdr.contents != NULL)
- contents = elf_section_data (sec)->this_hdr.contents;
- else
+ if (sym.st_shndx == sec_shndx
+ && (sym.st_value <= addr
+ || sym.st_value >= toaddr))
{
- contents = (bfd_byte *) bfd_malloc (sec->_raw_size);
- if (contents == NULL)
- goto error_return;
- free_contents = contents;
+ bfd_vma val;
- if (! bfd_get_section_contents (abfd, sec, contents,
- (file_ptr) 0, sec->_raw_size))
- goto error_return;
+ if (ocontents == NULL)
+ {
+ if (elf_section_data (o)->this_hdr.contents != NULL)
+ ocontents = elf_section_data (o)->this_hdr.contents;
+ else
+ {
+ /* We always cache the section contents.
+ Perhaps, if info->keep_memory is false, we
+ should free them, if we are permitted to,
+ when we leave sh_coff_relax_section. */
+ ocontents = (bfd_byte *) bfd_malloc (o->_raw_size);
+ if (ocontents == NULL)
+ return false;
+ if (! bfd_get_section_contents (abfd, o, ocontents,
+ (file_ptr) 0,
+ o->_raw_size))
+ return false;
+ elf_section_data (o)->this_hdr.contents = ocontents;
+ }
+ }
+
+ val = bfd_get_32 (abfd, ocontents + irelscan->r_offset);
+ val += sym.st_value;
+ if (val > addr && val < toaddr)
+ bfd_put_32 (abfd, val - count,
+ ocontents + irelscan->r_offset);
}
}
+ }
- if (! sh_elf_align_loads (abfd, sec, internal_relocs, contents,
- &swapped))
- goto error_return;
-
- if (swapped)
- {
- elf_section_data (sec)->relocs = internal_relocs;
- free_relocs = NULL;
+ /* Adjust the local symbols defined in this section. */
+ shndx = shndx_buf;
+ esym = extsyms;
+ esymend = esym + symtab_hdr->sh_info;
+ for (; esym < esymend; esym++, shndx = (shndx ? shndx + 1 : NULL))
+ {
+ Elf_Internal_Sym isym;
+ Elf_External_Sym_Shndx dummy;
- elf_section_data (sec)->this_hdr.contents = contents;
- free_contents = NULL;
+ bfd_elf32_swap_symbol_in (abfd, (const PTR) esym, (const PTR) shndx,
+ &isym);
- symtab_hdr->contents = (bfd_byte *) extsyms;
- free_extsyms = NULL;
+ if (isym.st_shndx == sec_shndx
+ && isym.st_value > addr
+ && isym.st_value < toaddr)
+ {
+ isym.st_value -= count;
+ bfd_elf32_swap_symbol_out (abfd, &isym, (PTR) esym, (PTR) &dummy);
}
}
- if (free_relocs != NULL)
- {
- free (free_relocs);
- free_relocs = NULL;
- }
-
- if (free_contents != NULL)
+ /* Now adjust the global symbols defined in this section. */
+ symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
+ - symtab_hdr->sh_info);
+ sym_hashes = elf_sym_hashes (abfd);
+ end_hashes = sym_hashes + symcount;
+ for (; sym_hashes < end_hashes; sym_hashes++)
{
- if (! link_info->keep_memory)
- free (free_contents);
- else
+ struct elf_link_hash_entry *sym_hash = *sym_hashes;
+ if ((sym_hash->root.type == bfd_link_hash_defined
+ || sym_hash->root.type == bfd_link_hash_defweak)
+ && sym_hash->root.u.def.section == sec
+ && sym_hash->root.u.def.value > addr
+ && sym_hash->root.u.def.value < toaddr)
{
- /* Cache the section contents for elf_link_input_bfd. */
- elf_section_data (sec)->this_hdr.contents = contents;
+ sym_hash->root.u.def.value -= count;
}
- free_contents = NULL;
}
- if (free_extsyms != NULL)
+ /* See if we can move the ALIGN reloc forward. We have adjusted
+ r_offset for it already. */
+ if (irelalign != NULL)
{
- if (! link_info->keep_memory)
- free (free_extsyms);
- else
+ bfd_vma alignto, alignaddr;
+
+ alignto = BFD_ALIGN (toaddr, 1 << irelalign->r_addend);
+ alignaddr = BFD_ALIGN (irelalign->r_offset,
+ 1 << irelalign->r_addend);
+ if (alignto != alignaddr)
{
- /* Cache the symbols for elf_link_input_bfd. */
- symtab_hdr->contents = extsyms;
+ /* Tail recursion. */
+ return sh_elf_relax_delete_bytes (abfd, sec, alignaddr,
+ (int) (alignto - alignaddr));
}
- free_extsyms = NULL;
}
return true;
-
- error_return:
- if (free_relocs != NULL)
- free (free_relocs);
- if (free_contents != NULL)
- free (free_contents);
- if (free_extsyms != NULL)
- free (free_extsyms);
- return false;
}
-/* Delete some bytes from a section while relaxing. FIXME: There is a
- lot of duplication between this function and sh_relax_delete_bytes
- in coff-sh.c. */
+/* Look for loads and stores which we can align to four byte
+ boundaries. This is like sh_align_loads in coff-sh.c. */
static boolean
-sh_elf_relax_delete_bytes (abfd, sec, addr, count)
- bfd *abfd;
+sh_elf_align_loads (abfd, sec, internal_relocs, contents, pswapped)
+ bfd *abfd ATTRIBUTE_UNUSED;
asection *sec;
- bfd_vma addr;
- int count;
+ Elf_Internal_Rela *internal_relocs;
+ bfd_byte *contents ATTRIBUTE_UNUSED;
+ boolean *pswapped;
{
- Elf_Internal_Shdr *symtab_hdr;
- Elf32_External_Sym *extsyms;
- int shndx, index;
- bfd_byte *contents;
Elf_Internal_Rela *irel, *irelend;
- Elf_Internal_Rela *irelalign;
- bfd_vma toaddr;
- Elf32_External_Sym *esym, *esymend;
- struct elf_link_hash_entry *sym_hash;
- asection *o;
-
- symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
- extsyms = (Elf32_External_Sym *) symtab_hdr->contents;
-
- shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
-
- contents = elf_section_data (sec)->this_hdr.contents;
+ bfd_vma *labels = NULL;
+ bfd_vma *label, *label_end;
+ bfd_size_type amt;
- /* The deletion must stop at the next ALIGN reloc for an aligment
- power larger than the number of bytes we are deleting. */
+ *pswapped = false;
- irelalign = NULL;
- toaddr = sec->_cooked_size;
+ irelend = internal_relocs + sec->reloc_count;
- irel = elf_section_data (sec)->relocs;
- irelend = irel + sec->reloc_count;
- for (; irel < irelend; irel++)
+ /* Get all the addresses with labels on them. */
+ amt = sec->reloc_count;
+ amt *= sizeof (bfd_vma);
+ labels = (bfd_vma *) bfd_malloc (amt);
+ if (labels == NULL)
+ goto error_return;
+ label_end = labels;
+ for (irel = internal_relocs; irel < irelend; irel++)
{
- if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_ALIGN
- && irel->r_offset > addr
- && count < (1 << irel->r_addend))
+ if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_LABEL)
{
- irelalign = irel;
- toaddr = irel->r_offset;
- break;
+ *label_end = irel->r_offset;
+ ++label_end;
}
}
- /* Actually delete the bytes. */
- memmove (contents + addr, contents + addr + count, toaddr - addr - count);
- if (irelalign == NULL)
- sec->_cooked_size -= count;
- else
- {
- int i;
-
-#define NOP_OPCODE (0x0009)
+ /* Note that the assembler currently always outputs relocs in
+ address order. If that ever changes, this code will need to sort
+ the label values and the relocs. */
- BFD_ASSERT ((count & 1) == 0);
- for (i = 0; i < count; i += 2)
- bfd_put_16 (abfd, NOP_OPCODE, contents + toaddr - count + i);
- }
+ label = labels;
- /* Adjust all the relocs. */
- for (irel = elf_section_data (sec)->relocs; irel < irelend; irel++)
+ for (irel = internal_relocs; irel < irelend; irel++)
{
- bfd_vma nraddr, stop;
- bfd_vma start = 0;
- int insn = 0;
- Elf_Internal_Sym sym;
- int off, adjust, oinsn;
- bfd_signed_vma voff = 0;
- boolean overflow;
-
- /* Get the new reloc address. */
- nraddr = irel->r_offset;
- if ((irel->r_offset > addr
- && irel->r_offset < toaddr)
- || (ELF32_R_TYPE (irel->r_info) == (int) R_SH_ALIGN
- && irel->r_offset == toaddr))
- nraddr -= count;
-
- /* See if this reloc was for the bytes we have deleted, in which
- case we no longer care about it. Don't delete relocs which
- represent addresses, though. */
- if (irel->r_offset >= addr
- && irel->r_offset < addr + count
- && ELF32_R_TYPE (irel->r_info) != (int) R_SH_ALIGN
- && ELF32_R_TYPE (irel->r_info) != (int) R_SH_CODE
- && ELF32_R_TYPE (irel->r_info) != (int) R_SH_DATA
- && ELF32_R_TYPE (irel->r_info) != (int) R_SH_LABEL)
- irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
- (int) R_SH_NONE);
-
- /* If this is a PC relative reloc, see if the range it covers
- includes the bytes we have deleted. */
- switch ((enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info))
- {
- default:
- break;
-
- case R_SH_DIR8WPN:
- case R_SH_IND12W:
- case R_SH_DIR8WPZ:
- case R_SH_DIR8WPL:
- start = irel->r_offset;
- insn = bfd_get_16 (abfd, contents + nraddr);
- break;
- }
+ bfd_vma start, stop;
- switch ((enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info))
- {
- default:
- start = stop = addr;
- break;
+ if (ELF32_R_TYPE (irel->r_info) != (int) R_SH_CODE)
+ continue;
- case R_SH_DIR32:
- /* If this reloc is against a symbol defined in this
- section, and the symbol will not be adjusted below, we
- must check the addend to see it will put the value in
- range to be adjusted, and hence must be changed. */
- if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
- {
- bfd_elf32_swap_symbol_in (abfd,
- extsyms + ELF32_R_SYM (irel->r_info),
- &sym);
- if (sym.st_shndx == shndx
- && (sym.st_value <= addr
- || sym.st_value >= toaddr))
- {
- bfd_vma val;
+ start = irel->r_offset;
- val = bfd_get_32 (abfd, contents + nraddr);
- val += sym.st_value;
- if (val > addr && val < toaddr)
- bfd_put_32 (abfd, val - count, contents + nraddr);
- }
- }
- start = stop = addr;
+ for (irel++; irel < irelend; irel++)
+ if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_DATA)
break;
+ if (irel < irelend)
+ stop = irel->r_offset;
+ else
+ stop = sec->_cooked_size;
- case R_SH_DIR8WPN:
- off = insn & 0xff;
- if (off & 0x80)
- off -= 0x100;
- stop = (bfd_vma) ((bfd_signed_vma) start + 4 + off * 2);
- break;
+ if (! _bfd_sh_align_load_span (abfd, sec, contents, sh_elf_swap_insns,
+ (PTR) internal_relocs, &label,
+ label_end, start, stop, pswapped))
+ goto error_return;
+ }
- case R_SH_IND12W:
- if (ELF32_R_SYM (irel->r_info) >= symtab_hdr->sh_info)
- start = stop = addr;
- else
- {
- off = insn & 0xfff;
- if (off & 0x800)
- off -= 0x1000;
- stop = (bfd_vma) ((bfd_signed_vma) start + 4 + off * 2);
- }
- break;
+ free (labels);
- case R_SH_DIR8WPZ:
- off = insn & 0xff;
- stop = start + 4 + off * 2;
- break;
+ return true;
- case R_SH_DIR8WPL:
- off = insn & 0xff;
- stop = (start &~ (bfd_vma) 3) + 4 + off * 4;
- break;
+ error_return:
+ if (labels != NULL)
+ free (labels);
+ return false;
+}
- case R_SH_SWITCH8:
- case R_SH_SWITCH16:
- case R_SH_SWITCH32:
- /* These relocs types represent
- .word L2-L1
- The r_addend field holds the difference between the reloc
- address and L1. That is the start of the reloc, and
- adding in the contents gives us the top. We must adjust
- both the r_offset field and the section contents.
- N.B. in gas / coff bfd, the elf bfd r_addend is called r_offset,
- and the elf bfd r_offset is called r_vaddr. */
+/* Swap two SH instructions. This is like sh_swap_insns in coff-sh.c. */
- stop = irel->r_offset;
- start = (bfd_vma) ((bfd_signed_vma) stop - (long) irel->r_addend);
+static boolean
+sh_elf_swap_insns (abfd, sec, relocs, contents, addr)
+ bfd *abfd;
+ asection *sec;
+ PTR relocs;
+ bfd_byte *contents;
+ bfd_vma addr;
+{
+ Elf_Internal_Rela *internal_relocs = (Elf_Internal_Rela *) relocs;
+ unsigned short i1, i2;
+ Elf_Internal_Rela *irel, *irelend;
- if (start > addr
- && start < toaddr
- && (stop <= addr || stop >= toaddr))
- irel->r_addend += count;
- else if (stop > addr
- && stop < toaddr
- && (start <= addr || start >= toaddr))
- irel->r_addend -= count;
+ /* Swap the instructions themselves. */
+ i1 = bfd_get_16 (abfd, contents + addr);
+ i2 = bfd_get_16 (abfd, contents + addr + 2);
+ bfd_put_16 (abfd, (bfd_vma) i2, contents + addr);
+ bfd_put_16 (abfd, (bfd_vma) i1, contents + addr + 2);
- if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_SWITCH16)
- voff = bfd_get_signed_16 (abfd, contents + nraddr);
- else if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_SWITCH8)
- voff = bfd_get_8 (abfd, contents + nraddr);
- else
- voff = bfd_get_signed_32 (abfd, contents + nraddr);
- stop = (bfd_vma) ((bfd_signed_vma) start + voff);
+ /* Adjust all reloc addresses. */
+ irelend = internal_relocs + sec->reloc_count;
+ for (irel = internal_relocs; irel < irelend; irel++)
+ {
+ enum elf_sh_reloc_type type;
+ int add;
- break;
+ /* There are a few special types of relocs that we don't want to
+ adjust. These relocs do not apply to the instruction itself,
+ but are only associated with the address. */
+ type = (enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info);
+ if (type == R_SH_ALIGN
+ || type == R_SH_CODE
+ || type == R_SH_DATA
+ || type == R_SH_LABEL)
+ continue;
- case R_SH_USES:
- start = irel->r_offset;
- stop = (bfd_vma) ((bfd_signed_vma) start
- + (long) irel->r_addend
- + 4);
- break;
+ /* If an R_SH_USES reloc points to one of the addresses being
+ swapped, we must adjust it. It would be incorrect to do this
+ for a jump, though, since we want to execute both
+ instructions after the jump. (We have avoided swapping
+ around a label, so the jump will not wind up executing an
+ instruction it shouldn't). */
+ if (type == R_SH_USES)
+ {
+ bfd_vma off;
+
+ off = irel->r_offset + 4 + irel->r_addend;
+ if (off == addr)
+ irel->r_offset += 2;
+ else if (off == addr + 2)
+ irel->r_offset -= 2;
}
- if (start > addr
- && start < toaddr
- && (stop <= addr || stop >= toaddr))
- adjust = count;
- else if (stop > addr
- && stop < toaddr
- && (start <= addr || start >= toaddr))
- adjust = - count;
+ if (irel->r_offset == addr)
+ {
+ irel->r_offset += 2;
+ add = -2;
+ }
+ else if (irel->r_offset == addr + 2)
+ {
+ irel->r_offset -= 2;
+ add = 2;
+ }
else
- adjust = 0;
+ add = 0;
- if (adjust != 0)
+ if (add != 0)
{
- oinsn = insn;
+ bfd_byte *loc;
+ unsigned short insn, oinsn;
+ boolean overflow;
+
+ loc = contents + irel->r_offset;
overflow = false;
- switch ((enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info))
+ switch (type)
{
default:
- abort ();
break;
case R_SH_DIR8WPN:
case R_SH_DIR8WPZ:
- insn += adjust / 2;
+ insn = bfd_get_16 (abfd, loc);
+ oinsn = insn;
+ insn += add / 2;
if ((oinsn & 0xff00) != (insn & 0xff00))
overflow = true;
- bfd_put_16 (abfd, insn, contents + nraddr);
+ bfd_put_16 (abfd, (bfd_vma) insn, loc);
break;
case R_SH_IND12W:
- insn += adjust / 2;
+ insn = bfd_get_16 (abfd, loc);
+ oinsn = insn;
+ insn += add / 2;
if ((oinsn & 0xf000) != (insn & 0xf000))
overflow = true;
- bfd_put_16 (abfd, insn, contents + nraddr);
+ bfd_put_16 (abfd, (bfd_vma) insn, loc);
break;
case R_SH_DIR8WPL:
- BFD_ASSERT (adjust == count || count >= 4);
- if (count >= 4)
- insn += adjust / 4;
- else
+ /* This reloc ignores the least significant 3 bits of
+ the program counter before adding in the offset.
+ This means that if ADDR is at an even address, the
+ swap will not affect the offset. If ADDR is an at an
+ odd address, then the instruction will be crossing a
+ four byte boundary, and must be adjusted. */
+ if ((addr & 3) != 0)
{
- if ((irel->r_offset & 3) == 0)
- ++insn;
+ insn = bfd_get_16 (abfd, loc);
+ oinsn = insn;
+ insn += add / 2;
+ if ((oinsn & 0xff00) != (insn & 0xff00))
+ overflow = true;
+ bfd_put_16 (abfd, (bfd_vma) insn, loc);
}
- if ((oinsn & 0xff00) != (insn & 0xff00))
- overflow = true;
- bfd_put_16 (abfd, insn, contents + nraddr);
- break;
-
- case R_SH_SWITCH8:
- voff += adjust;
- if (voff < 0 || voff >= 0xff)
- overflow = true;
- bfd_put_8 (abfd, voff, contents + nraddr);
- break;
-
- case R_SH_SWITCH16:
- voff += adjust;
- if (voff < - 0x8000 || voff >= 0x8000)
- overflow = true;
- bfd_put_signed_16 (abfd, voff, contents + nraddr);
- break;
-
- case R_SH_SWITCH32:
- voff += adjust;
- bfd_put_signed_32 (abfd, voff, contents + nraddr);
- break;
- case R_SH_USES:
- irel->r_addend += adjust;
break;
}
{
((*_bfd_error_handler)
(_("%s: 0x%lx: fatal: reloc overflow while relaxing"),
- bfd_get_filename (abfd), (unsigned long) irel->r_offset));
+ bfd_archive_filename (abfd), (unsigned long) irel->r_offset));
bfd_set_error (bfd_error_bad_value);
return false;
}
}
-
- irel->r_offset = nraddr;
}
- /* Look through all the other sections. If there contain any IMM32
- relocs against internal symbols which we are not going to adjust
- below, we may need to adjust the addends. */
- for (o = abfd->sections; o != NULL; o = o->next)
- {
- Elf_Internal_Rela *internal_relocs;
- Elf_Internal_Rela *irelscan, *irelscanend;
- bfd_byte *ocontents;
+ return true;
+}
+\f
+#ifdef INCLUDE_SHMEDIA
- if (o == sec
- || (o->flags & SEC_RELOC) == 0
- || o->reloc_count == 0)
- continue;
+/* The size in bytes of an entry in the procedure linkage table. */
- /* We always cache the relocs. Perhaps, if info->keep_memory is
- false, we should free them, if we are permitted to, when we
- leave sh_coff_relax_section. */
- internal_relocs = (_bfd_elf32_link_read_relocs
- (abfd, o, (PTR) NULL, (Elf_Internal_Rela *) NULL,
- true));
- if (internal_relocs == NULL)
- return false;
+#define PLT_ENTRY_SIZE 64
- ocontents = NULL;
- irelscanend = internal_relocs + o->reloc_count;
- for (irelscan = internal_relocs; irelscan < irelscanend; irelscan++)
- {
- Elf_Internal_Sym sym;
+/* First entry in an absolute procedure linkage table look like this. */
- /* Dwarf line numbers use R_SH_SWITCH32 relocs. */
- if (ELF32_R_TYPE (irelscan->r_info) == (int) R_SH_SWITCH32)
- {
- bfd_vma start, stop;
- bfd_signed_vma voff;
+static const bfd_byte elf_sh_plt0_entry_be[PLT_ENTRY_SIZE] =
+{
+ 0xcc, 0x00, 0x01, 0x10, /* movi .got.plt >> 16, r17 */
+ 0xc8, 0x00, 0x01, 0x10, /* shori .got.plt & 65535, r17 */
+ 0x89, 0x10, 0x09, 0x90, /* ld.l r17, 8, r25 */
+ 0x6b, 0xf1, 0x46, 0x00, /* ptabs r17, tr0 */
+ 0x89, 0x10, 0x05, 0x10, /* ld.l r17, 4, r17 */
+ 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
+ 0x6f, 0xf0, 0xff, 0xf0, /* nop */
+ 0x6f, 0xf0, 0xff, 0xf0, /* nop */
+ 0x6f, 0xf0, 0xff, 0xf0, /* nop */
+ 0x6f, 0xf0, 0xff, 0xf0, /* nop */
+ 0x6f, 0xf0, 0xff, 0xf0, /* nop */
+ 0x6f, 0xf0, 0xff, 0xf0, /* nop */
+ 0x6f, 0xf0, 0xff, 0xf0, /* nop */
+ 0x6f, 0xf0, 0xff, 0xf0, /* nop */
+ 0x6f, 0xf0, 0xff, 0xf0, /* nop */
+ 0x6f, 0xf0, 0xff, 0xf0, /* nop */
+};
+
+static const bfd_byte elf_sh_plt0_entry_le[PLT_ENTRY_SIZE] =
+{
+ 0x10, 0x01, 0x00, 0xcc, /* movi .got.plt >> 16, r17 */
+ 0x10, 0x01, 0x00, 0xc8, /* shori .got.plt & 65535, r17 */
+ 0x90, 0x09, 0x10, 0x89, /* ld.l r17, 8, r25 */
+ 0x00, 0x46, 0xf1, 0x6b, /* ptabs r17, tr0 */
+ 0x10, 0x05, 0x10, 0x89, /* ld.l r17, 4, r17 */
+ 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
+ 0xf0, 0xff, 0xf0, 0x6f, /* nop */
+ 0xf0, 0xff, 0xf0, 0x6f, /* nop */
+ 0xf0, 0xff, 0xf0, 0x6f, /* nop */
+ 0xf0, 0xff, 0xf0, 0x6f, /* nop */
+ 0xf0, 0xff, 0xf0, 0x6f, /* nop */
+ 0xf0, 0xff, 0xf0, 0x6f, /* nop */
+ 0xf0, 0xff, 0xf0, 0x6f, /* nop */
+ 0xf0, 0xff, 0xf0, 0x6f, /* nop */
+ 0xf0, 0xff, 0xf0, 0x6f, /* nop */
+ 0xf0, 0xff, 0xf0, 0x6f, /* nop */
+};
+
+/* Sebsequent entries in an absolute procedure linkage table look like
+ this. */
+
+static const bfd_byte elf_sh_plt_entry_be[PLT_ENTRY_SIZE] =
+{
+ 0xcc, 0x00, 0x01, 0x90, /* movi nameN-in-GOT >> 16, r25 */
+ 0xc8, 0x00, 0x01, 0x90, /* shori nameN-in-GOT & 65535, r25 */
+ 0x89, 0x90, 0x01, 0x90, /* ld.l r25, 0, r25 */
+ 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
+ 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
+ 0x6f, 0xf0, 0xff, 0xf0, /* nop */
+ 0x6f, 0xf0, 0xff, 0xf0, /* nop */
+ 0x6f, 0xf0, 0xff, 0xf0, /* nop */
+ 0xcc, 0x00, 0x01, 0x90, /* movi .PLT0 >> 16, r25 */
+ 0xc8, 0x00, 0x01, 0x90, /* shori .PLT0 & 65535, r25 */
+ 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
+ 0xcc, 0x00, 0x01, 0x50, /* movi reloc-offset >> 16, r21 */
+ 0xc8, 0x00, 0x01, 0x50, /* shori reloc-offset & 65535, r21 */
+ 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
+ 0x6f, 0xf0, 0xff, 0xf0, /* nop */
+ 0x6f, 0xf0, 0xff, 0xf0, /* nop */
+};
+
+static const bfd_byte elf_sh_plt_entry_le[PLT_ENTRY_SIZE] =
+{
+ 0x90, 0x01, 0x00, 0xcc, /* movi nameN-in-GOT >> 16, r25 */
+ 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */
+ 0x90, 0x01, 0x90, 0x89, /* ld.l r25, 0, r25 */
+ 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
+ 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
+ 0xf0, 0xff, 0xf0, 0x6f, /* nop */
+ 0xf0, 0xff, 0xf0, 0x6f, /* nop */
+ 0xf0, 0xff, 0xf0, 0x6f, /* nop */
+ 0x90, 0x01, 0x00, 0xcc, /* movi .PLT0 >> 16, r25 */
+ 0x90, 0x01, 0x00, 0xc8, /* shori .PLT0 & 65535, r25 */
+ 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
+ 0x50, 0x01, 0x00, 0xcc, /* movi reloc-offset >> 16, r21 */
+ 0x50, 0x01, 0x00, 0xc8, /* shori reloc-offset & 65535, r21 */
+ 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
+ 0xf0, 0xff, 0xf0, 0x6f, /* nop */
+ 0xf0, 0xff, 0xf0, 0x6f, /* nop */
+};
+
+/* Entries in a PIC procedure linkage table look like this. */
+
+static const bfd_byte elf_sh_pic_plt_entry_be[PLT_ENTRY_SIZE] =
+{
+ 0xcc, 0x00, 0x01, 0x90, /* movi nameN@GOT >> 16, r25 */
+ 0xc8, 0x00, 0x01, 0x90, /* shori nameN@GOT & 65535, r25 */
+ 0x40, 0xc2, 0x65, 0x90, /* ldx.l r12, r25, r25 */
+ 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
+ 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
+ 0x6f, 0xf0, 0xff, 0xf0, /* nop */
+ 0x6f, 0xf0, 0xff, 0xf0, /* nop */
+ 0x6f, 0xf0, 0xff, 0xf0, /* nop */
+ 0xce, 0x00, 0x01, 0x10, /* movi -GOT_BIAS, r17 */
+ 0x00, 0xca, 0x45, 0x10, /* sub.l r12, r17, r17 */
+ 0x89, 0x10, 0x09, 0x90, /* ld.l r17, 8, r25 */
+ 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
+ 0x89, 0x10, 0x05, 0x10, /* ld.l r17, 4, r17 */
+ 0xcc, 0x00, 0x01, 0x50, /* movi reloc-offset >> 16, r21 */
+ 0xc8, 0x00, 0x01, 0x50, /* shori reloc-offset & 65535, r21 */
+ 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
+};
+
+static const bfd_byte elf_sh_pic_plt_entry_le[PLT_ENTRY_SIZE] =
+{
+ 0x90, 0x01, 0x00, 0xcc, /* movi nameN@GOT >> 16, r25 */
+ 0x90, 0x01, 0x00, 0xc8, /* shori nameN@GOT & 65535, r25 */
+ 0x90, 0x65, 0xc2, 0x40, /* ldx.l r12, r25, r25 */
+ 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
+ 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
+ 0xf0, 0xff, 0xf0, 0x6f, /* nop */
+ 0xf0, 0xff, 0xf0, 0x6f, /* nop */
+ 0xf0, 0xff, 0xf0, 0x6f, /* nop */
+ 0x10, 0x01, 0x00, 0xce, /* movi -GOT_BIAS, r17 */
+ 0x10, 0x45, 0xca, 0x00, /* sub.l r12, r17, r17 */
+ 0x90, 0x09, 0x10, 0x89, /* ld.l r17, 8, r25 */
+ 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
+ 0x10, 0x05, 0x10, 0x89, /* ld.l r17, 4, r17 */
+ 0x50, 0x01, 0x00, 0xcc, /* movi reloc-offset >> 16, r21 */
+ 0x50, 0x01, 0x00, 0xc8, /* shori reloc-offset & 65535, r21 */
+ 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
+};
+
+static const bfd_byte *elf_sh_plt0_entry;
+static const bfd_byte *elf_sh_plt_entry;
+static const bfd_byte *elf_sh_pic_plt_entry;
+
+/* Return size of a PLT entry. */
+#define elf_sh_sizeof_plt(info) PLT_ENTRY_SIZE
+
+/* Return offset of the PLT0 address in an absolute PLT entry. */
+#define elf_sh_plt_plt0_offset(info) 32
+
+/* Return offset of the linker in PLT0 entry. */
+#define elf_sh_plt0_gotplt_offset(info) 0
+
+/* Return offset of the trampoline in PLT entry */
+#define elf_sh_plt_temp_offset(info) 33 /* Add one because it's SHmedia. */
+
+/* Return offset of the symbol in PLT entry. */
+#define elf_sh_plt_symbol_offset(info) 0
+
+/* Return offset of the relocation in PLT entry. */
+#define elf_sh_plt_reloc_offset(info) (info->shared ? 52 : 44)
+
+inline static void
+movi_shori_putval (output_bfd, value, addr)
+ bfd *output_bfd;
+ unsigned long value;
+ char *addr;
+{
+ bfd_put_32 (output_bfd,
+ bfd_get_32 (output_bfd, addr)
+ | ((value >> 6) & 0x3fffc00),
+ addr);
+ bfd_put_32 (output_bfd,
+ bfd_get_32 (output_bfd, addr + 4)
+ | ((value << 10) & 0x3fffc00),
+ addr + 4);
+}
+
+#else
+/* The size in bytes of an entry in the procedure linkage table. */
+
+#define PLT_ENTRY_SIZE 28
+
+/* First entry in an absolute procedure linkage table look like this. */
+
+#if 1
+/* Note - this code has been "optimised" not to use r2. r2 is used by
+ GCC to return the address of large strutcures, so it should not be
+ corrupted here. This does mean however, that this PLT does not conform
+ to the SH PIC ABI. That spec says that r0 contains the type of the PLT
+ and r2 contains the GOT id. This version stores the GOT id in r0 and
+ ignores the type. Loaders can easily detect this difference however,
+ since the type will always be 0 or 8, and the GOT ids will always be
+ greater than or equal to 12. */
+static const bfd_byte elf_sh_plt0_entry_be[PLT_ENTRY_SIZE] =
+{
+ 0xd0, 0x05, /* mov.l 2f,r0 */
+ 0x60, 0x02, /* mov.l @r0,r0 */
+ 0x2f, 0x06, /* mov.l r0,@-r15 */
+ 0xd0, 0x03, /* mov.l 1f,r0 */
+ 0x60, 0x02, /* mov.l @r0,r0 */
+ 0x40, 0x2b, /* jmp @r0 */
+ 0x60, 0xf6, /* mov.l @r15+,r0 */
+ 0x00, 0x09, /* nop */
+ 0x00, 0x09, /* nop */
+ 0x00, 0x09, /* nop */
+ 0, 0, 0, 0, /* 1: replaced with address of .got.plt + 8. */
+ 0, 0, 0, 0, /* 2: replaced with address of .got.plt + 4. */
+};
+
+static const bfd_byte elf_sh_plt0_entry_le[PLT_ENTRY_SIZE] =
+{
+ 0x05, 0xd0, /* mov.l 2f,r0 */
+ 0x02, 0x60, /* mov.l @r0,r0 */
+ 0x06, 0x2f, /* mov.l r0,@-r15 */
+ 0x03, 0xd0, /* mov.l 1f,r0 */
+ 0x02, 0x60, /* mov.l @r0,r0 */
+ 0x2b, 0x40, /* jmp @r0 */
+ 0xf6, 0x60, /* mov.l @r15+,r0 */
+ 0x09, 0x00, /* nop */
+ 0x09, 0x00, /* nop */
+ 0x09, 0x00, /* nop */
+ 0, 0, 0, 0, /* 1: replaced with address of .got.plt + 8. */
+ 0, 0, 0, 0, /* 2: replaced with address of .got.plt + 4. */
+};
+
+/* Sebsequent entries in an absolute procedure linkage table look like
+ this. */
+
+static const bfd_byte elf_sh_plt_entry_be[PLT_ENTRY_SIZE] =
+{
+ 0xd0, 0x04, /* mov.l 1f,r0 */
+ 0x60, 0x02, /* mov.l @r0,r0 */
+ 0xd1, 0x02, /* mov.l 0f,r1 */
+ 0x40, 0x2b, /* jmp @r0 */
+ 0x60, 0x13, /* mov r1,r0 */
+ 0xd1, 0x03, /* mov.l 2f,r1 */
+ 0x40, 0x2b, /* jmp @r0 */
+ 0x00, 0x09, /* nop */
+ 0, 0, 0, 0, /* 0: replaced with address of .PLT0. */
+ 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
+ 0, 0, 0, 0, /* 2: replaced with offset into relocation table. */
+};
+
+static const bfd_byte elf_sh_plt_entry_le[PLT_ENTRY_SIZE] =
+{
+ 0x04, 0xd0, /* mov.l 1f,r0 */
+ 0x02, 0x60, /* mov.l @r0,r0 */
+ 0x02, 0xd1, /* mov.l 0f,r1 */
+ 0x2b, 0x40, /* jmp @r0 */
+ 0x13, 0x60, /* mov r1,r0 */
+ 0x03, 0xd1, /* mov.l 2f,r1 */
+ 0x2b, 0x40, /* jmp @r0 */
+ 0x09, 0x00, /* nop */
+ 0, 0, 0, 0, /* 0: replaced with address of .PLT0. */
+ 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
+ 0, 0, 0, 0, /* 2: replaced with offset into relocation table. */
+};
+
+/* Entries in a PIC procedure linkage table look like this. */
+
+static const bfd_byte elf_sh_pic_plt_entry_be[PLT_ENTRY_SIZE] =
+{
+ 0xd0, 0x04, /* mov.l 1f,r0 */
+ 0x00, 0xce, /* mov.l @(r0,r12),r0 */
+ 0x40, 0x2b, /* jmp @r0 */
+ 0x00, 0x09, /* nop */
+ 0x50, 0xc2, /* mov.l @(8,r12),r0 */
+ 0xd1, 0x03, /* mov.l 2f,r1 */
+ 0x40, 0x2b, /* jmp @r0 */
+ 0x50, 0xc1, /* mov.l @(4,r12),r0 */
+ 0x00, 0x09, /* nop */
+ 0x00, 0x09, /* nop */
+ 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
+ 0, 0, 0, 0 /* 2: replaced with offset into relocation table. */
+};
+
+static const bfd_byte elf_sh_pic_plt_entry_le[PLT_ENTRY_SIZE] =
+{
+ 0x04, 0xd0, /* mov.l 1f,r0 */
+ 0xce, 0x00, /* mov.l @(r0,r12),r0 */
+ 0x2b, 0x40, /* jmp @r0 */
+ 0x09, 0x00, /* nop */
+ 0xc2, 0x50, /* mov.l @(8,r12),r0 */
+ 0x03, 0xd1, /* mov.l 2f,r1 */
+ 0x2b, 0x40, /* jmp @r0 */
+ 0xc1, 0x50, /* mov.l @(4,r12),r0 */
+ 0x09, 0x00, /* nop */
+ 0x09, 0x00, /* nop */
+ 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
+ 0, 0, 0, 0 /* 2: replaced with offset into relocation table. */
+};
+
+#else /* These are the old style PLT entries. */
+static const bfd_byte elf_sh_plt0_entry_be[PLT_ENTRY_SIZE] =
+{
+ 0xd0, 0x04, /* mov.l 1f,r0 */
+ 0xd2, 0x05, /* mov.l 2f,r2 */
+ 0x60, 0x02, /* mov.l @r0,r0 */
+ 0x62, 0x22, /* mov.l @r2,r2 */
+ 0x40, 0x2b, /* jmp @r0 */
+ 0xe0, 0x00, /* mov #0,r0 */
+ 0x00, 0x09, /* nop */
+ 0x00, 0x09, /* nop */
+ 0x00, 0x09, /* nop */
+ 0x00, 0x09, /* nop */
+ 0, 0, 0, 0, /* 1: replaced with address of .got.plt + 8. */
+ 0, 0, 0, 0, /* 2: replaced with address of .got.plt + 4. */
+};
+
+static const bfd_byte elf_sh_plt0_entry_le[PLT_ENTRY_SIZE] =
+{
+ 0x04, 0xd0, /* mov.l 1f,r0 */
+ 0x05, 0xd2, /* mov.l 2f,r2 */
+ 0x02, 0x60, /* mov.l @r0,r0 */
+ 0x22, 0x62, /* mov.l @r2,r2 */
+ 0x2b, 0x40, /* jmp @r0 */
+ 0x00, 0xe0, /* mov #0,r0 */
+ 0x09, 0x00, /* nop */
+ 0x09, 0x00, /* nop */
+ 0x09, 0x00, /* nop */
+ 0x09, 0x00, /* nop */
+ 0, 0, 0, 0, /* 1: replaced with address of .got.plt + 8. */
+ 0, 0, 0, 0, /* 2: replaced with address of .got.plt + 4. */
+};
+
+/* Sebsequent entries in an absolute procedure linkage table look like
+ this. */
+
+static const bfd_byte elf_sh_plt_entry_be[PLT_ENTRY_SIZE] =
+{
+ 0xd0, 0x04, /* mov.l 1f,r0 */
+ 0x60, 0x02, /* mov.l @r0,r0 */
+ 0xd2, 0x02, /* mov.l 0f,r2 */
+ 0x40, 0x2b, /* jmp @r0 */
+ 0x60, 0x23, /* mov r2,r0 */
+ 0xd1, 0x03, /* mov.l 2f,r1 */
+ 0x40, 0x2b, /* jmp @r0 */
+ 0x00, 0x09, /* nop */
+ 0, 0, 0, 0, /* 0: replaced with address of .PLT0. */
+ 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
+ 0, 0, 0, 0, /* 2: replaced with offset into relocation table. */
+};
+
+static const bfd_byte elf_sh_plt_entry_le[PLT_ENTRY_SIZE] =
+{
+ 0x04, 0xd0, /* mov.l 1f,r0 */
+ 0x02, 0x60, /* mov.l @r0,r0 */
+ 0x02, 0xd2, /* mov.l 0f,r2 */
+ 0x2b, 0x40, /* jmp @r0 */
+ 0x23, 0x60, /* mov r2,r0 */
+ 0x03, 0xd1, /* mov.l 2f,r1 */
+ 0x2b, 0x40, /* jmp @r0 */
+ 0x09, 0x00, /* nop */
+ 0, 0, 0, 0, /* 0: replaced with address of .PLT. */
+ 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
+ 0, 0, 0, 0, /* 2: replaced with offset into relocation table. */
+};
+
+/* Entries in a PIC procedure linkage table look like this. */
+
+static const bfd_byte elf_sh_pic_plt_entry_be[PLT_ENTRY_SIZE] =
+{
+ 0xd0, 0x04, /* mov.l 1f,r0 */
+ 0x00, 0xce, /* mov.l @(r0,r12),r0 */
+ 0x40, 0x2b, /* jmp @r0 */
+ 0x00, 0x09, /* nop */
+ 0x50, 0xc2, /* 0: mov.l @(8,r12),r0 */
+ 0x52, 0xc1, /* 1: mov.l @(4,r12),r2 */
+ 0xd1, 0x02, /* mov.l 2f,r1 */
+ 0x40, 0x2b, /* jmp @r0 */
+ 0xe0, 0x00, /* mov #0,r0 ! shows the type of PLT. */
+ 0x00, 0x09, /* nop */
+ 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
+ 0, 0, 0, 0 /* 2: replaced with offset into relocation table. */
+};
+
+static const bfd_byte elf_sh_pic_plt_entry_le[PLT_ENTRY_SIZE] =
+{
+ 0x04, 0xd0, /* mov.l 1f,r0 */
+ 0xce, 0x00, /* mov.l @(r0,r12),r0 */
+ 0x2b, 0x40, /* jmp @r0 */
+ 0x09, 0x00, /* nop */
+ 0xc2, 0x50, /* 0: mov.l @(8,r12),r0 */
+ 0xc1, 0x52, /* 1: mov.l @(4,r12),r2 */
+ 0x02, 0xd1, /* mov.l 2f,r1 */
+ 0x2b, 0x40, /* jmp @r0 */
+ 0x00, 0xe0, /* mov #0,r0 ! shows the type of PLT. */
+ 0x09, 0x00, /* nop */
+ 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
+ 0, 0, 0, 0 /* 2: replaced with offset into relocation table. */
+};
+#endif /* old style PLT entries. */
+
+static const bfd_byte *elf_sh_plt0_entry;
+static const bfd_byte *elf_sh_plt_entry;
+static const bfd_byte *elf_sh_pic_plt_entry;
+
+/* Return size of a PLT entry. */
+#define elf_sh_sizeof_plt(info) PLT_ENTRY_SIZE
+
+/* Return offset of the PLT0 address in an absolute PLT entry. */
+#define elf_sh_plt_plt0_offset(info) 16
+
+/* Return offset of the linker in PLT0 entry. */
+#define elf_sh_plt0_linker_offset(info) 20
+
+/* Return offset of the GOT id in PLT0 entry. */
+#define elf_sh_plt0_gotid_offset(info) 24
+
+/* Return offset of the tempoline in PLT entry */
+#define elf_sh_plt_temp_offset(info) 8
+
+/* Return offset of the symbol in PLT entry. */
+#define elf_sh_plt_symbol_offset(info) 20
+
+/* Return offset of the relocation in PLT entry. */
+#define elf_sh_plt_reloc_offset(info) 24
+#endif
+
+/* The sh linker needs to keep track of the number of relocs that it
+ decides to copy in check_relocs for each symbol. This is so that
+ it can discard PC relative relocs if it doesn't need them when
+ linking with -Bsymbolic. We store the information in a field
+ extending the regular ELF linker hash table. */
+
+/* This structure keeps track of the number of PC relative relocs we
+ have copied for a given symbol. */
+
+struct elf_sh_pcrel_relocs_copied
+{
+ /* Next section. */
+ struct elf_sh_pcrel_relocs_copied *next;
+ /* A section in dynobj. */
+ asection *section;
+ /* Number of relocs copied in this section. */
+ bfd_size_type count;
+};
+
+/* sh ELF linker hash entry. */
+
+struct elf_sh_link_hash_entry
+{
+ struct elf_link_hash_entry root;
+
+#ifdef INCLUDE_SHMEDIA
+ bfd_vma datalabel_got_offset;
+#endif
+
+ /* Number of PC relative relocs copied for this symbol. */
+ struct elf_sh_pcrel_relocs_copied *pcrel_relocs_copied;
+};
+
+/* sh ELF linker hash table. */
+
+struct elf_sh_link_hash_table
+{
+ struct elf_link_hash_table root;
+};
+
+/* Declare this now that the above structures are defined. */
+
+static boolean sh_elf_discard_copies
+ PARAMS ((struct elf_sh_link_hash_entry *, PTR));
- if (ocontents == NULL)
- {
- if (elf_section_data (o)->this_hdr.contents != NULL)
- ocontents = elf_section_data (o)->this_hdr.contents;
- else
- {
- /* We always cache the section contents.
- Perhaps, if info->keep_memory is false, we
- should free them, if we are permitted to,
- when we leave sh_coff_relax_section. */
- ocontents = (bfd_byte *) bfd_malloc (o->_raw_size);
- if (ocontents == NULL)
- return false;
- if (! bfd_get_section_contents (abfd, o, ocontents,
- (file_ptr) 0,
- o->_raw_size))
- return false;
- elf_section_data (o)->this_hdr.contents = ocontents;
- }
- }
+/* Traverse an sh ELF linker hash table. */
- stop = irelscan->r_offset;
- start
- = (bfd_vma) ((bfd_signed_vma) stop - (long) irelscan->r_addend);
+#define sh_elf_link_hash_traverse(table, func, info) \
+ (elf_link_hash_traverse \
+ (&(table)->root, \
+ (boolean (*) PARAMS ((struct elf_link_hash_entry *, PTR))) (func), \
+ (info)))
- /* STOP is in a different section, so it won't change. */
- if (start > addr && start < toaddr)
- irelscan->r_addend += count;
+/* Get the sh ELF linker hash table from a link_info structure. */
- voff = bfd_get_signed_32 (abfd, ocontents + irelscan->r_offset);
- stop = (bfd_vma) ((bfd_signed_vma) start + voff);
+#define sh_elf_hash_table(p) \
+ ((struct elf_sh_link_hash_table *) ((p)->hash))
- if (start > addr
- && start < toaddr
- && (stop <= addr || stop >= toaddr))
- bfd_put_signed_32 (abfd, voff + count,
- ocontents + irelscan->r_offset);
- else if (stop > addr
- && stop < toaddr
- && (start <= addr || start >= toaddr))
- bfd_put_signed_32 (abfd, voff - count,
- ocontents + irelscan->r_offset);
- }
+/* Create an entry in an sh ELF linker hash table. */
- if (ELF32_R_TYPE (irelscan->r_info) != (int) R_SH_DIR32)
- continue;
+static struct bfd_hash_entry *
+sh_elf_link_hash_newfunc (entry, table, string)
+ struct bfd_hash_entry *entry;
+ struct bfd_hash_table *table;
+ const char *string;
+{
+ struct elf_sh_link_hash_entry *ret =
+ (struct elf_sh_link_hash_entry *) entry;
+
+ /* Allocate the structure if it has not already been allocated by a
+ subclass. */
+ if (ret == (struct elf_sh_link_hash_entry *) NULL)
+ ret = ((struct elf_sh_link_hash_entry *)
+ bfd_hash_allocate (table,
+ sizeof (struct elf_sh_link_hash_entry)));
+ if (ret == (struct elf_sh_link_hash_entry *) NULL)
+ return (struct bfd_hash_entry *) ret;
+
+ /* Call the allocation method of the superclass. */
+ ret = ((struct elf_sh_link_hash_entry *)
+ _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
+ table, string));
+ if (ret != (struct elf_sh_link_hash_entry *) NULL)
+ {
+ ret->pcrel_relocs_copied = NULL;
+#ifdef INCLUDE_SHMEDIA
+ ret->datalabel_got_offset = (bfd_vma) -1;
+#endif
+ }
- if (ELF32_R_SYM (irelscan->r_info) >= symtab_hdr->sh_info)
- continue;
+ return (struct bfd_hash_entry *) ret;
+}
- bfd_elf32_swap_symbol_in (abfd,
- extsyms + ELF32_R_SYM (irelscan->r_info),
- &sym);
+/* Create an sh ELF linker hash table. */
- if (sym.st_shndx == shndx
- && (sym.st_value <= addr
- || sym.st_value >= toaddr))
- {
- bfd_vma val;
+static struct bfd_link_hash_table *
+sh_elf_link_hash_table_create (abfd)
+ bfd *abfd;
+{
+ struct elf_sh_link_hash_table *ret;
+ bfd_size_type amt = sizeof (struct elf_sh_link_hash_table);
- if (ocontents == NULL)
- {
- if (elf_section_data (o)->this_hdr.contents != NULL)
- ocontents = elf_section_data (o)->this_hdr.contents;
- else
- {
- /* We always cache the section contents.
- Perhaps, if info->keep_memory is false, we
- should free them, if we are permitted to,
- when we leave sh_coff_relax_section. */
- ocontents = (bfd_byte *) bfd_malloc (o->_raw_size);
- if (ocontents == NULL)
- return false;
- if (! bfd_get_section_contents (abfd, o, ocontents,
- (file_ptr) 0,
- o->_raw_size))
- return false;
- elf_section_data (o)->this_hdr.contents = ocontents;
- }
- }
+ ret = (struct elf_sh_link_hash_table *) bfd_malloc (amt);
+ if (ret == (struct elf_sh_link_hash_table *) NULL)
+ return NULL;
- val = bfd_get_32 (abfd, ocontents + irelscan->r_offset);
- val += sym.st_value;
- if (val > addr && val < toaddr)
- bfd_put_32 (abfd, val - count,
- ocontents + irelscan->r_offset);
- }
- }
+ if (! _bfd_elf_link_hash_table_init (&ret->root, abfd,
+ sh_elf_link_hash_newfunc))
+ {
+ free (ret);
+ return NULL;
}
- /* Adjust the local symbols defined in this section. */
- esym = extsyms;
- esymend = esym + symtab_hdr->sh_info;
- for (; esym < esymend; esym++)
+ return &ret->root.root;
+}
+
+/* Create dynamic sections when linking against a dynamic object. */
+
+static boolean
+sh_elf_create_dynamic_sections (abfd, info)
+ bfd *abfd;
+ struct bfd_link_info *info;
+{
+ flagword flags, pltflags;
+ register asection *s;
+ struct elf_backend_data *bed = get_elf_backend_data (abfd);
+ int ptralign = 0;
+
+ switch (bed->s->arch_size)
{
- Elf_Internal_Sym isym;
+ case 32:
+ ptralign = 2;
+ break;
- bfd_elf32_swap_symbol_in (abfd, esym, &isym);
+ case 64:
+ ptralign = 3;
+ break;
- if (isym.st_shndx == shndx
- && isym.st_value > addr
- && isym.st_value < toaddr)
- {
- isym.st_value -= count;
- bfd_elf32_swap_symbol_out (abfd, &isym, esym);
- }
+ default:
+ bfd_set_error (bfd_error_bad_value);
+ return false;
}
- /* Now adjust the global symbols defined in this section. */
- esym = extsyms + symtab_hdr->sh_info;
- esymend = extsyms + (symtab_hdr->sh_size / sizeof (Elf32_External_Sym));
- for (index = 0; esym < esymend; esym++, index++)
+ /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
+ .rel[a].bss sections. */
+
+ flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
+ | SEC_LINKER_CREATED);
+
+ pltflags = flags;
+ pltflags |= SEC_CODE;
+ if (bed->plt_not_loaded)
+ pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS);
+ if (bed->plt_readonly)
+ pltflags |= SEC_READONLY;
+
+ s = bfd_make_section (abfd, ".plt");
+ if (s == NULL
+ || ! bfd_set_section_flags (abfd, s, pltflags)
+ || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
+ return false;
+
+ if (bed->want_plt_sym)
{
- Elf_Internal_Sym isym;
+ /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
+ .plt section. */
+ struct elf_link_hash_entry *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;
- bfd_elf32_swap_symbol_in (abfd, esym, &isym);
- sym_hash = elf_sym_hashes (abfd)[index];
- if (isym.st_shndx == shndx
- && ((sym_hash)->root.type == bfd_link_hash_defined
- || (sym_hash)->root.type == bfd_link_hash_defweak)
- && (sym_hash)->root.u.def.section == sec
- && (sym_hash)->root.u.def.value > addr
- && (sym_hash)->root.u.def.value < toaddr)
- {
- (sym_hash)->root.u.def.value -= count;
- }
+ if (info->shared
+ && ! _bfd_elf_link_record_dynamic_symbol (info, h))
+ return false;
}
- /* See if we can move the ALIGN reloc forward. We have adjusted
- r_offset for it already. */
- if (irelalign != NULL)
+ s = bfd_make_section (abfd,
+ bed->default_use_rela_p ? ".rela.plt" : ".rel.plt");
+ if (s == NULL
+ || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY)
+ || ! bfd_set_section_alignment (abfd, s, ptralign))
+ return false;
+
+ if (! _bfd_elf_create_got_section (abfd, info))
+ return false;
+
+ {
+ const char *secname;
+ char *relname;
+ flagword secflags;
+ asection *sec;
+
+ for (sec = abfd->sections; sec; sec = sec->next)
+ {
+ secflags = bfd_get_section_flags (abfd, sec);
+ if ((secflags & (SEC_DATA | SEC_LINKER_CREATED))
+ || ((secflags & SEC_HAS_CONTENTS) != SEC_HAS_CONTENTS))
+ continue;
+ secname = bfd_get_section_name (abfd, sec);
+ relname = (char *) bfd_malloc ((bfd_size_type) strlen (secname) + 6);
+ strcpy (relname, ".rela");
+ strcat (relname, secname);
+ s = bfd_make_section (abfd, relname);
+ if (s == NULL
+ || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY)
+ || ! bfd_set_section_alignment (abfd, s, ptralign))
+ return false;
+ }
+ }
+
+ if (bed->want_dynbss)
{
- bfd_vma alignto, alignaddr;
+ /* 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_*_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;
- alignto = BFD_ALIGN (toaddr, 1 << irelalign->r_addend);
- alignaddr = BFD_ALIGN (irelalign->r_offset,
- 1 << irelalign->r_addend);
- if (alignto != alignaddr)
+ /* The .rel[a].bss section holds copy relocs. This section is not
+ normally needed. We need to create it here, though, so that the
+ linker will map it to an output section. We can't just create it
+ only if we need it, because we will not know whether we need it
+ until we have seen all the input files, and the first time the
+ main linker code calls BFD after examining all the input files
+ (size_dynamic_sections) the input sections have already been
+ mapped to the output sections. If the section turns out not to
+ be needed, we can discard it later. We will never need this
+ section when generating a shared object, since they do not use
+ copy relocs. */
+ if (! info->shared)
{
- /* Tail recursion. */
- return sh_elf_relax_delete_bytes (abfd, sec, alignaddr,
- alignto - alignaddr);
+ s = bfd_make_section (abfd,
+ (bed->default_use_rela_p
+ ? ".rela.bss" : ".rel.bss"));
+ if (s == NULL
+ || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY)
+ || ! bfd_set_section_alignment (abfd, s, ptralign))
+ return false;
}
}
return true;
}
-
-/* Look for loads and stores which we can align to four byte
- boundaries. This is like sh_align_loads in coff-sh.c. */
+\f
+/* 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
+ change the definition to something the rest of the link can
+ understand. */
static boolean
-sh_elf_align_loads (abfd, sec, internal_relocs, contents, pswapped)
- bfd *abfd;
- asection *sec;
- Elf_Internal_Rela *internal_relocs;
- bfd_byte *contents;
- boolean *pswapped;
+sh_elf_adjust_dynamic_symbol (info, h)
+ struct bfd_link_info *info;
+ struct elf_link_hash_entry *h;
{
- Elf_Internal_Rela *irel, *irelend;
- bfd_vma *labels = NULL;
- bfd_vma *label, *label_end;
-
- *pswapped = false;
+ bfd *dynobj;
+ asection *s;
+ unsigned int power_of_two;
+
+ dynobj = elf_hash_table (info)->dynobj;
+
+ /* Make sure we know what is going on here. */
+ BFD_ASSERT (dynobj != 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,
+ when we know the address of the .got section. */
+ if (h->type == STT_FUNC
+ || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0)
+ {
+ if (! info->shared
+ && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) == 0
+ && (h->elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) == 0)
+ {
+ /* This case can occur if we saw a PLT reloc in an input
+ file, but the symbol was never referred to by a dynamic
+ object. In such a case, we don't actually need to build
+ a procedure linkage table, and we can just do a REL32
+ reloc instead. */
+ BFD_ASSERT ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0);
+ return true;
+ }
- irelend = internal_relocs + sec->reloc_count;
+ /* 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;
+ }
- /* Get all the addresses with labels on them. */
- labels = (bfd_vma *) bfd_malloc (sec->reloc_count * sizeof (bfd_vma));
- if (labels == NULL)
- goto error_return;
- label_end = labels;
- for (irel = internal_relocs; irel < irelend; irel++)
- {
- if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_LABEL)
+ s = bfd_get_section_by_name (dynobj, ".plt");
+ BFD_ASSERT (s != NULL);
+
+ /* If this is the first .plt entry, make room for the special
+ first entry. */
+ if (s->_raw_size == 0)
+ 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)
{
- *label_end = irel->r_offset;
- ++label_end;
+ h->root.u.def.section = s;
+ h->root.u.def.value = s->_raw_size;
}
- }
- /* Note that the assembler currently always outputs relocs in
- address order. If that ever changes, this code will need to sort
- the label values and the relocs. */
+ h->plt.offset = s->_raw_size;
- label = labels;
+ /* Make room for this entry. */
+ s->_raw_size += elf_sh_sizeof_plt (info);
- for (irel = internal_relocs; irel < irelend; irel++)
+ /* We also need to make an entry in the .got.plt section, which
+ will be placed in the .got section by the linker script. */
+
+ s = bfd_get_section_by_name (dynobj, ".got.plt");
+ BFD_ASSERT (s != NULL);
+ s->_raw_size += 4;
+
+ /* 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;
+ }
+
+ /* If this is a weak symbol, and there is a real definition, the
+ processor independent code will have arranged for us to see the
+ real definition first, and we can just use the same value. */
+ if (h->weakdef != NULL)
{
- bfd_vma start, stop;
+ 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;
+ }
- if (ELF32_R_TYPE (irel->r_info) != (int) R_SH_CODE)
- continue;
+ /* This is a reference to a symbol defined by a dynamic object which
+ is not a function. */
- start = irel->r_offset;
+ /* If we are creating a shared library, we must presume that the
+ only references to the symbol are via the global offset table.
+ For such cases we need not do anything here; the relocations will
+ be handled correctly by relocate_section. */
+ if (info->shared)
+ return true;
- for (irel++; irel < irelend; irel++)
- if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_DATA)
- break;
- if (irel < irelend)
- stop = irel->r_offset;
- else
- stop = sec->_cooked_size;
+ /* If there are no references to this symbol that do not use the
+ GOT, we don't need to generate a copy reloc. */
+ if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0)
+ return true;
- if (! _bfd_sh_align_load_span (abfd, sec, contents, sh_elf_swap_insns,
- (PTR) internal_relocs, &label,
- label_end, start, stop, pswapped))
- goto error_return;
+ /* We must allocate the symbol in our .dynbss section, which will
+ become part of the .bss section of the executable. There will be
+ an entry for this symbol in the .dynsym section. The dynamic
+ object will contain position independent code, so all references
+ from the dynamic object to this symbol will go through the global
+ offset table. The dynamic linker will use the .dynsym entry to
+ determine the address it must put in the global offset table, so
+ both the dynamic object and the regular object will refer to the
+ same memory location for the variable. */
+
+ s = bfd_get_section_by_name (dynobj, ".dynbss");
+ BFD_ASSERT (s != NULL);
+
+ /* We must generate a R_SH_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
+ .rela.bss section we are going to use. */
+ if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
+ {
+ asection *srel;
+
+ srel = bfd_get_section_by_name (dynobj, ".rela.bss");
+ BFD_ASSERT (srel != NULL);
+ srel->_raw_size += sizeof (Elf32_External_Rela);
+ h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY;
}
- free (labels);
+ /* We need to figure out the alignment required for this symbol. I
+ have no idea how ELF linkers handle this. */
+ power_of_two = bfd_log2 (h->size);
+ if (power_of_two > 3)
+ power_of_two = 3;
- return true;
+ /* Apply the required alignment. */
+ s->_raw_size = BFD_ALIGN (s->_raw_size,
+ (bfd_size_type) (1 << power_of_two));
+ if (power_of_two > bfd_get_section_alignment (dynobj, s))
+ {
+ if (! bfd_set_section_alignment (dynobj, s, power_of_two))
+ return false;
+ }
- error_return:
- if (labels != NULL)
- free (labels);
- return false;
+ /* Define the symbol as being at this point in the section. */
+ h->root.u.def.section = s;
+ h->root.u.def.value = s->_raw_size;
+
+ /* Increment the section size to make room for the symbol. */
+ s->_raw_size += h->size;
+
+ return true;
}
-/* Swap two SH instructions. This is like sh_swap_insns in coff-sh.c. */
+/* Set the sizes of the dynamic sections. */
static boolean
-sh_elf_swap_insns (abfd, sec, relocs, contents, addr)
- bfd *abfd;
- asection *sec;
- PTR relocs;
- bfd_byte *contents;
- bfd_vma addr;
+sh_elf_size_dynamic_sections (output_bfd, info)
+ bfd *output_bfd ATTRIBUTE_UNUSED;
+ struct bfd_link_info *info;
{
- Elf_Internal_Rela *internal_relocs = (Elf_Internal_Rela *) relocs;
- unsigned short i1, i2;
- Elf_Internal_Rela *irel, *irelend;
+ bfd *dynobj;
+ asection *s;
+ boolean plt;
+ boolean relocs;
- /* Swap the instructions themselves. */
- i1 = bfd_get_16 (abfd, contents + addr);
- i2 = bfd_get_16 (abfd, contents + addr + 2);
- bfd_put_16 (abfd, i2, contents + addr);
- bfd_put_16 (abfd, i1, contents + addr + 2);
+ dynobj = elf_hash_table (info)->dynobj;
+ BFD_ASSERT (dynobj != NULL);
- /* Adjust all reloc addresses. */
- irelend = internal_relocs + sec->reloc_count;
- for (irel = internal_relocs; irel < irelend; irel++)
+ if (elf_hash_table (info)->dynamic_sections_created)
{
- enum elf_sh_reloc_type type;
- int add;
+ /* 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;
+ }
+ }
+ 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;
+ }
- /* There are a few special types of relocs that we don't want to
- adjust. These relocs do not apply to the instruction itself,
- but are only associated with the address. */
- type = (enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info);
- if (type == R_SH_ALIGN
- || type == R_SH_CODE
- || type == R_SH_DATA
- || type == R_SH_LABEL)
+ /* If this is a -Bsymbolic shared link, then we need to discard all
+ PC relative relocs against symbols defined in a regular object.
+ We allocated space for them in the check_relocs routine, but we
+ will not fill them in in the relocate_section routine. */
+ if (info->shared && info->symbolic)
+ sh_elf_link_hash_traverse (sh_elf_hash_table (info),
+ sh_elf_discard_copies,
+ (PTR) NULL);
+
+ /* The check_relocs and adjust_dynamic_symbol entry points have
+ determined the sizes of the various dynamic sections. Allocate
+ memory for them. */
+ plt = false;
+ relocs = false;
+ for (s = dynobj->sections; s != NULL; s = s->next)
+ {
+ const char *name;
+ boolean strip;
+
+ if ((s->flags & SEC_LINKER_CREATED) == 0)
continue;
- /* If an R_SH_USES reloc points to one of the addresses being
- swapped, we must adjust it. It would be incorrect to do this
- for a jump, though, since we want to execute both
- instructions after the jump. (We have avoided swapping
- around a label, so the jump will not wind up executing an
- instruction it shouldn't). */
- if (type == R_SH_USES)
+ /* 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);
+
+ strip = false;
+
+ if (strcmp (name, ".plt") == 0)
+ {
+ if (s->_raw_size == 0)
+ {
+ /* Strip this section if we don't need it; see the
+ comment below. */
+ strip = true;
+ }
+ else
+ {
+ /* Remember whether there is a PLT. */
+ plt = true;
+ }
+ }
+ else if (strncmp (name, ".rela", 5) == 0)
+ {
+ if (s->_raw_size == 0)
+ {
+ /* If we don't need this section, strip it from the
+ output file. This is mostly to handle .rela.bss and
+ .rela.plt. We must create both sections in
+ create_dynamic_sections, because they 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
+ {
+ /* Remember whether there are any reloc sections other
+ than .rela.plt. */
+ if (strcmp (name, ".rela.plt") != 0)
+ relocs = 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 (strncmp (name, ".got", 4) != 0)
+ {
+ /* It's not one of our sections, so don't allocate space. */
+ continue;
+ }
+
+ if (strip)
{
- bfd_vma off;
+ _bfd_strip_section_from_output (info, s);
+ continue;
+ }
- off = irel->r_offset + 4 + irel->r_addend;
- if (off == addr)
- irel->r_offset += 2;
- else if (off == addr + 2)
- irel->r_offset -= 2;
+ /* 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 (elf_hash_table (info)->dynamic_sections_created)
+ {
+ /* Add some entries to the .dynamic section. We fill in the
+ values later, in sh_elf_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. */
+#define add_dynamic_entry(TAG, VAL) \
+ bfd_elf32_add_dynamic_entry (info, (bfd_vma) (TAG), (bfd_vma) (VAL))
+
+ if (! info->shared)
+ {
+ if (!add_dynamic_entry (DT_DEBUG, 0))
+ return false;
}
- if (irel->r_offset == addr)
+ if (plt)
{
- irel->r_offset += 2;
- add = -2;
+ if (!add_dynamic_entry (DT_PLTGOT, 0)
+ || !add_dynamic_entry (DT_PLTRELSZ, 0)
+ || !add_dynamic_entry (DT_PLTREL, DT_RELA)
+ || !add_dynamic_entry (DT_JMPREL, 0))
+ return false;
}
- else if (irel->r_offset == addr + 2)
+
+ if (relocs)
{
- irel->r_offset -= 2;
- add = 2;
+ if (!add_dynamic_entry (DT_RELA, 0)
+ || !add_dynamic_entry (DT_RELASZ, 0)
+ || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
+ return false;
}
- else
- add = 0;
- if (add != 0)
+ if ((info->flags & DF_TEXTREL) != 0)
{
- bfd_byte *loc;
- unsigned short insn, oinsn;
- boolean overflow;
+ if (!add_dynamic_entry (DT_TEXTREL, 0))
+ return false;
+ }
+ }
+#undef add_dynamic_entry
- loc = contents + irel->r_offset;
- overflow = false;
- switch (type)
- {
- default:
- break;
+ return true;
+}
- case R_SH_DIR8WPN:
- case R_SH_DIR8WPZ:
- insn = bfd_get_16 (abfd, loc);
- oinsn = insn;
- insn += add / 2;
- if ((oinsn & 0xff00) != (insn & 0xff00))
- overflow = true;
- bfd_put_16 (abfd, insn, loc);
- break;
+/* This function is called via sh_elf_link_hash_traverse if we are
+ creating a shared object with -Bsymbolic. It discards the space
+ allocated to copy PC relative relocs against symbols which are
+ defined in regular objects. We allocated space for them in the
+ check_relocs routine, but we won't fill them in in the
+ relocate_section routine. */
- case R_SH_IND12W:
- insn = bfd_get_16 (abfd, loc);
- oinsn = insn;
- insn += add / 2;
- if ((oinsn & 0xf000) != (insn & 0xf000))
- overflow = true;
- bfd_put_16 (abfd, insn, loc);
- break;
+static boolean
+sh_elf_discard_copies (h, ignore)
+ struct elf_sh_link_hash_entry *h;
+ PTR ignore ATTRIBUTE_UNUSED;
+{
+ struct elf_sh_pcrel_relocs_copied *s;
- case R_SH_DIR8WPL:
- /* This reloc ignores the least significant 3 bits of
- the program counter before adding in the offset.
- This means that if ADDR is at an even address, the
- swap will not affect the offset. If ADDR is an at an
- odd address, then the instruction will be crossing a
- four byte boundary, and must be adjusted. */
- if ((addr & 3) != 0)
- {
- insn = bfd_get_16 (abfd, loc);
- oinsn = insn;
- insn += add / 2;
- if ((oinsn & 0xff00) != (insn & 0xff00))
- overflow = true;
- bfd_put_16 (abfd, insn, loc);
- }
+ if (h->root.root.type == bfd_link_hash_warning)
+ h = (struct elf_sh_link_hash_entry *) h->root.root.u.i.link;
- break;
- }
+ /* We only discard relocs for symbols defined in a regular object. */
+ if ((h->root.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
+ return true;
- if (overflow)
- {
- ((*_bfd_error_handler)
- (_("%s: 0x%lx: fatal: reloc overflow while relaxing"),
- bfd_get_filename (abfd), (unsigned long) irel->r_offset));
- bfd_set_error (bfd_error_bad_value);
- return false;
- }
- }
- }
+ for (s = h->pcrel_relocs_copied; s != NULL; s = s->next)
+ s->section->_raw_size -= s->count * sizeof (Elf32_External_Rela);
return true;
}
static boolean
sh_elf_relocate_section (output_bfd, info, input_bfd, input_section,
contents, relocs, local_syms, local_sections)
- bfd *output_bfd ATTRIBUTE_UNUSED;
+ bfd *output_bfd;
struct bfd_link_info *info;
bfd *input_bfd;
asection *input_section;
Elf_Internal_Shdr *symtab_hdr;
struct elf_link_hash_entry **sym_hashes;
Elf_Internal_Rela *rel, *relend;
+ bfd *dynobj;
+ bfd_vma *local_got_offsets;
+ asection *sgot;
+ asection *sgotplt;
+ asection *splt;
+ asection *sreloc;
symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
sym_hashes = elf_sym_hashes (input_bfd);
+ dynobj = elf_hash_table (info)->dynobj;
+ local_got_offsets = elf_local_got_offsets (input_bfd);
+
+ sgot = NULL;
+ sgotplt = NULL;
+ splt = NULL;
+ sreloc = NULL;
rel = relocs;
relend = relocs + input_section->reloc_count;
asection *sec;
struct elf_link_hash_entry *h;
bfd_vma relocation;
- bfd_vma addend = (bfd_vma)0;
+ bfd_vma addend = (bfd_vma) 0;
bfd_reloc_status_type r;
+ int seen_stt_datalabel = 0;
r_symndx = ELF32_R_SYM (rel->r_info);
- if (info->relocateable)
- {
- /* This is a relocateable link. We don't have to change
- anything, unless the reloc is against a section symbol,
- in which case we have to adjust according to where the
- section symbol winds up in the output section. */
- if (r_symndx < symtab_hdr->sh_info)
- {
- sym = local_syms + r_symndx;
- if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
- {
- sec = local_sections[r_symndx];
- rel->r_addend += sec->output_offset + sym->st_value;
- }
- }
-
- continue;
- }
-
r_type = ELF32_R_TYPE (rel->r_info);
/* Many of the relocs are only used for relaxing, and are
if (r_type > (int) R_SH_LAST_INVALID_RELOC
&& r_type < (int) R_SH_LOOP_START)
continue;
+ if (r_type == (int) R_SH_NONE)
+ continue;
if (r_type < 0
+ || r_type >= R_SH_max
|| (r_type >= (int) R_SH_FIRST_INVALID_RELOC
- && r_type <= (int) R_SH_LAST_INVALID_RELOC))
+ && r_type <= (int) R_SH_LAST_INVALID_RELOC)
+ || ( r_type >= (int) R_SH_FIRST_INVALID_RELOC_3
+ && r_type <= (int) R_SH_LAST_INVALID_RELOC_3)
+ || ( r_type >= (int) R_SH_FIRST_INVALID_RELOC_4
+ && r_type <= (int) R_SH_LAST_INVALID_RELOC_4)
+ || (r_type >= (int) R_SH_FIRST_INVALID_RELOC_2
+ && r_type <= (int) R_SH_LAST_INVALID_RELOC_2))
{
bfd_set_error (bfd_error_bad_value);
return false;
}
- /* FIXME: This is certainly incorrect. However, it is how the
- COFF linker works. */
- if (r_type != (int) R_SH_DIR32
- && r_type != (int) R_SH_IND12W
- && r_type != (int) R_SH_LOOP_START
- && r_type != (int) R_SH_LOOP_END)
- continue;
-
howto = sh_elf_howto_table + r_type;
- /* This is a final link. */
+ /* For relocs that aren't partial_inplace, we get the addend from
+ the relocation. */
+ if (! howto->partial_inplace)
+ addend = rel->r_addend;
+
h = NULL;
sym = NULL;
sec = NULL;
if (r_symndx < symtab_hdr->sh_info)
{
- /* There is nothing to be done for an internal IND12W
- relocation. FIXME: This is probably wrong, but it's how
- the COFF relocations work. */
- if (r_type == (int) R_SH_IND12W)
- continue;
sym = local_syms + r_symndx;
sec = local_sections[r_symndx];
relocation = (sec->output_section->vma
+ sec->output_offset
+ sym->st_value);
+ /* A local symbol never has STO_SH5_ISA32, so we don't need
+ datalabel processing here. Make sure this does not change
+ without notice. */
+ if ((sym->st_other & STO_SH5_ISA32) != 0)
+ ((*info->callbacks->reloc_dangerous)
+ (info,
+ _("Unexpected STO_SH5_ISA32 on local symbol is not handled"),
+ input_bfd, input_section, rel->r_offset));
+ if (info->relocateable)
+ {
+ /* This is a relocateable link. We don't have to change
+ anything, unless the reloc is against a section symbol,
+ in which case we have to adjust according to where the
+ section symbol winds up in the output section. */
+ sym = local_syms + r_symndx;
+ if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
+ {
+ if (! howto->partial_inplace)
+ {
+ /* For relocations with the addend in the
+ relocation, we need just to update the addend.
+ All real relocs are of type partial_inplace; this
+ code is mostly for completeness. */
+ rel->r_addend += sec->output_offset + sym->st_value;
+
+ continue;
+ }
+
+ /* Relocs of type partial_inplace need to pick up the
+ contents in the contents and add the offset resulting
+ from the changed location of the section symbol.
+ Using _bfd_final_link_relocate (e.g. goto
+ final_link_relocate) here would be wrong, because
+ relocations marked pc_relative would get the current
+ location subtracted, and we must only do that at the
+ final link. */
+ r = _bfd_relocate_contents (howto, input_bfd,
+ sec->output_offset
+ + sym->st_value,
+ contents + rel->r_offset);
+ goto relocation_done;
+ }
+
+ continue;
+ }
+ else if (! howto->partial_inplace)
+ {
+ relocation = _bfd_elf_rela_local_sym (output_bfd, sym, sec, rel);
+ addend = rel->r_addend;
+ }
+ else if ((sec->flags & SEC_MERGE)
+ && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
+ {
+ asection *msec;
+
+ if (howto->rightshift || howto->src_mask != 0xffffffff)
+ {
+ (*_bfd_error_handler)
+ (_("%s(%s+0x%lx): %s relocation against SEC_MERGE section"),
+ bfd_archive_filename (input_bfd),
+ bfd_get_section_name (input_bfd, input_section),
+ (long) rel->r_offset, howto->name);
+ return false;
+ }
+
+ addend = bfd_get_32 (input_bfd, contents + rel->r_offset);
+ msec = sec;
+ addend =
+ _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend)
+ - relocation;
+ addend += msec->output_section->vma + msec->output_offset;
+ bfd_put_32 (input_bfd, addend, contents + rel->r_offset);
+ addend = 0;
+ }
}
else
{
+ /* Section symbol are never (?) placed in the hash table, so
+ we can just ignore hash relocations when creating a
+ relocateable object file. */
+ if (info->relocateable)
+ continue;
+
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;
+ {
+#ifdef INCLUDE_SHMEDIA
+ /* If the reference passes a symbol marked with
+ STT_DATALABEL, then any STO_SH5_ISA32 on the final value
+ doesn't count. */
+ seen_stt_datalabel |= h->type == STT_DATALABEL;
+#endif
+ 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);
+ /* In these cases, we don't need the relocation value.
+ We check specially because in some obscure cases
+ sec->output_section will be NULL. */
+ if (r_type == R_SH_GOTPC
+ || r_type == R_SH_GOTPC_LOW16
+ || r_type == R_SH_GOTPC_MEDLOW16
+ || r_type == R_SH_GOTPC_MEDHI16
+ || r_type == R_SH_GOTPC_HI16
+ || ((r_type == R_SH_PLT32
+ || r_type == R_SH_PLT_LOW16
+ || r_type == R_SH_PLT_MEDLOW16
+ || r_type == R_SH_PLT_MEDHI16
+ || r_type == R_SH_PLT_HI16)
+ && h->plt.offset != (bfd_vma) -1)
+ || ((r_type == R_SH_GOT32
+ || r_type == R_SH_GOT_LOW16
+ || r_type == R_SH_GOT_MEDLOW16
+ || r_type == R_SH_GOT_MEDHI16
+ || r_type == R_SH_GOT_HI16)
+ && 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))
+ /* The cases above are those in which relocation is
+ overwritten in the switch block below. The cases
+ below are those in which we must defer relocation
+ to run-time, because we can't resolve absolute
+ addresses when creating a shared library. */
+ || (info->shared
+ && ((! info->symbolic && h->dynindx != -1)
+ || (h->elf_link_hash_flags
+ & ELF_LINK_HASH_DEF_REGULAR) == 0)
+ && ((r_type == R_SH_DIR32
+ && !(ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
+ || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN))
+ || r_type == R_SH_REL32)
+ && ((input_section->flags & SEC_ALLOC) != 0
+ /* DWARF will emit R_SH_DIR32 relocations in its
+ sections against symbols defined externally
+ in shared libraries. We can't do anything
+ with them here. */
+ || (input_section->flags & SEC_DEBUGGING) != 0)))
+ relocation = 0;
+ else if (sec->output_section == NULL)
+ {
+ (*_bfd_error_handler)
+ (_("%s: warning: unresolvable relocation against symbol `%s' from %s section"),
+ bfd_archive_filename (input_bfd), h->root.root.string,
+ bfd_get_section_name (input_bfd, input_section));
+ relocation = 0;
+ }
+ else
+ relocation = ((h->root.u.def.value
+ + sec->output_section->vma
+ + sec->output_offset)
+ /* A STO_SH5_ISA32 causes a "bitor 1" to the
+ symbol value, unless we've seen
+ STT_DATALABEL on the way to it. */
+ | ((h->other & STO_SH5_ISA32) != 0
+ && ! seen_stt_datalabel));
}
else if (h->root.type == bfd_link_hash_undefweak)
relocation = 0;
+ else if (info->shared
+ && (!info->symbolic || info->allow_shlib_undefined)
+ && !info->no_undefined)
+ relocation = 0;
else
{
if (! ((*info->callbacks->undefined_symbol)
return false;
relocation = 0;
}
- }
+ }
+
+ switch ((int) r_type)
+ {
+ final_link_relocate:
+ /* COFF relocs don't use the addend. The addend is used for
+ R_SH_DIR32 to be compatible with other compilers. */
+ r = _bfd_final_link_relocate (howto, input_bfd, input_section,
+ contents, rel->r_offset,
+ relocation, addend);
+ break;
+
+ case R_SH_IND12W:
+ relocation -= 4;
+ goto final_link_relocate;
+
+ case R_SH_DIR8WPN:
+ case R_SH_DIR8WPZ:
+ case R_SH_DIR8WPL:
+ /* If the reloc is against the start of this section, then
+ the assembler has already taken care of it and the reloc
+ is here only to assist in relaxing. If the reloc is not
+ against the start of this section, then it's against an
+ external symbol and we must deal with it ourselves. */
+ if (input_section->output_section->vma + input_section->output_offset
+ != relocation)
+ {
+ int disp = (relocation
+ - input_section->output_section->vma
+ - input_section->output_offset
+ - rel->r_offset);
+ int mask = 0;
+ switch (r_type)
+ {
+ case R_SH_DIR8WPN:
+ case R_SH_DIR8WPZ: mask = 1; break;
+ case R_SH_DIR8WPL: mask = 3; break;
+ default: mask = 0; break;
+ }
+ if (disp & mask)
+ {
+ ((*_bfd_error_handler)
+ (_("%s: 0x%lx: fatal: unaligned branch target for relax-support relocation"),
+ bfd_archive_filename (input_section->owner),
+ (unsigned long) rel->r_offset));
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+ relocation -= 4;
+ goto final_link_relocate;
+ }
+ r = bfd_reloc_ok;
+ break;
+
+ default:
+#ifdef INCLUDE_SHMEDIA
+ if (shmedia_prepare_reloc (info, input_bfd, input_section,
+ contents, rel, &relocation))
+ goto final_link_relocate;
+#endif
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+
+ case R_SH_DIR32:
+ case R_SH_REL32:
+ if (info->shared
+ && r_symndx != 0
+ && (input_section->flags & SEC_ALLOC) != 0
+ && (r_type != R_SH_REL32
+ || (h != NULL
+ && h->dynindx != -1
+ && (! info->symbolic
+ || (h->elf_link_hash_flags
+ & ELF_LINK_HASH_DEF_REGULAR) == 0))))
+ {
+ Elf_Internal_Rela outrel;
+ boolean skip, relocate;
+
+ /* When generating a shared object, these relocations
+ are copied into the output file to be resolved at run
+ time. */
+
+ if (sreloc == NULL)
+ {
+ const char *name;
+
+ name = (bfd_elf_string_from_elf_section
+ (input_bfd,
+ elf_elfheader (input_bfd)->e_shstrndx,
+ elf_section_data (input_section)->rel_hdr.sh_name));
+ if (name == NULL)
+ return false;
+
+ BFD_ASSERT (strncmp (name, ".rela", 5) == 0
+ && strcmp (bfd_get_section_name (input_bfd,
+ input_section),
+ name + 5) == 0);
+
+ sreloc = bfd_get_section_by_name (dynobj, name);
+ BFD_ASSERT (sreloc != NULL);
+ }
+
+ skip = false;
+ relocate = false;
+
+ outrel.r_offset =
+ _bfd_elf_section_offset (output_bfd, info, input_section,
+ rel->r_offset);
+ if (outrel.r_offset == (bfd_vma) -1)
+ skip = true;
+ else if (outrel.r_offset == (bfd_vma) -2)
+ skip = true, relocate = true;
+ outrel.r_offset += (input_section->output_section->vma
+ + input_section->output_offset);
+
+ if (skip)
+ memset (&outrel, 0, sizeof outrel);
+ else if (r_type == R_SH_REL32)
+ {
+ BFD_ASSERT (h != NULL && h->dynindx != -1);
+ outrel.r_info = ELF32_R_INFO (h->dynindx, R_SH_REL32);
+ outrel.r_addend
+ = bfd_get_32 (input_bfd, contents + rel->r_offset);
+ }
+ else
+ {
+ /* h->dynindx may be -1 if this symbol was marked to
+ become local. */
+ if (h == NULL
+ || ((info->symbolic || h->dynindx == -1)
+ && (h->elf_link_hash_flags
+ & ELF_LINK_HASH_DEF_REGULAR) != 0))
+ {
+ relocate = true;
+ outrel.r_info = ELF32_R_INFO (0, R_SH_RELATIVE);
+ outrel.r_addend
+ = relocation + bfd_get_32 (input_bfd,
+ contents + rel->r_offset);
+ }
+ else
+ {
+ BFD_ASSERT (h->dynindx != -1);
+ outrel.r_info = ELF32_R_INFO (h->dynindx, R_SH_DIR32);
+ outrel.r_addend
+ = relocation + bfd_get_32 (input_bfd,
+ contents + rel->r_offset);
+ }
+ }
+
+ bfd_elf32_swap_reloca_out (output_bfd, &outrel,
+ (((Elf32_External_Rela *)
+ sreloc->contents)
+ + sreloc->reloc_count));
+ ++sreloc->reloc_count;
+
+ /* If this reloc is against an external symbol, we do
+ not want to fiddle with the addend. Otherwise, we
+ need to include the symbol value so that it becomes
+ an addend for the dynamic reloc. */
+ if (! relocate)
+ continue;
+ }
+ goto final_link_relocate;
+
+ case R_SH_GOTPLT32:
+#ifdef INCLUDE_SHMEDIA
+ case R_SH_GOTPLT_LOW16:
+ case R_SH_GOTPLT_MEDLOW16:
+ case R_SH_GOTPLT_MEDHI16:
+ case R_SH_GOTPLT_HI16:
+ case R_SH_GOTPLT10BY4:
+ case R_SH_GOTPLT10BY8:
+#endif
+ /* Relocation is to the entry for this symbol in the
+ procedure linkage table. */
+
+ if (h == NULL
+ || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
+ || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
+ || ! info->shared
+ || info->symbolic
+ || h->dynindx == -1
+ || h->plt.offset == (bfd_vma) -1
+ || h->got.offset != (bfd_vma) -1)
+ goto force_got;
+
+ /* Relocation is to the entry for this symbol in the global
+ offset table extension for the procedure linkage table. */
+ if (sgotplt == NULL)
+ {
+ sgotplt = bfd_get_section_by_name (dynobj, ".got.plt");
+ BFD_ASSERT (sgotplt != NULL);
+ }
+
+ relocation = (sgotplt->output_offset
+ + ((h->plt.offset / elf_sh_sizeof_plt (info)
+ - 1 + 3) * 4));
+
+#ifdef GOT_BIAS
+ relocation -= GOT_BIAS;
+#endif
+
+ goto final_link_relocate;
+
+ force_got:
+ case R_SH_GOT32:
+#ifdef INCLUDE_SHMEDIA
+ case R_SH_GOT_LOW16:
+ case R_SH_GOT_MEDLOW16:
+ case R_SH_GOT_MEDHI16:
+ case R_SH_GOT_HI16:
+ case R_SH_GOT10BY4:
+ case R_SH_GOT10BY8:
+#endif
+ /* Relocation is to the entry for this symbol in the global
+ offset table. */
+ if (sgot == NULL)
+ {
+ sgot = bfd_get_section_by_name (dynobj, ".got");
+ BFD_ASSERT (sgot != NULL);
+ }
+
+ if (h != NULL)
+ {
+ bfd_vma off;
+
+ off = h->got.offset;
+#ifdef INCLUDE_SHMEDIA
+ if (seen_stt_datalabel)
+ {
+ struct elf_sh_link_hash_entry *hsh;
+
+ hsh = (struct elf_sh_link_hash_entry *)h;
+ off = hsh->datalabel_got_offset;
+ }
+#endif
+ BFD_ASSERT (off != (bfd_vma) -1);
+
+ if (! elf_hash_table (info)->dynamic_sections_created
+ || (info->shared
+ && (info->symbolic || h->dynindx == -1
+ || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
+ || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN)
+ && (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);
+#ifdef INCLUDE_SHMEDIA
+ if (seen_stt_datalabel)
+ {
+ struct elf_sh_link_hash_entry *hsh;
+
+ hsh = (struct elf_sh_link_hash_entry *)h;
+ hsh->datalabel_got_offset |= 1;
+ }
+ else
+#endif
+ h->got.offset |= 1;
+ }
+ }
+
+ relocation = sgot->output_offset + off;
+ }
+ else
+ {
+ bfd_vma off;
+
+#ifdef INCLUDE_SHMEDIA
+ if (rel->r_addend)
+ {
+ BFD_ASSERT (local_got_offsets != NULL
+ && (local_got_offsets[symtab_hdr->sh_info
+ + r_symndx]
+ != (bfd_vma) -1));
+
+ off = local_got_offsets[symtab_hdr->sh_info
+ + r_symndx];
+ }
+ else
+ {
+#endif
+ BFD_ASSERT (local_got_offsets != NULL
+ && local_got_offsets[r_symndx] != (bfd_vma) -1);
+
+ off = local_got_offsets[r_symndx];
+#ifdef INCLUDE_SHMEDIA
+ }
+#endif
+
+ /* 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. */
+ if ((off & 1) != 0)
+ off &= ~1;
+ else
+ {
+ bfd_put_32 (output_bfd, relocation, sgot->contents + off);
+
+ if (info->shared)
+ {
+ asection *srelgot;
+ Elf_Internal_Rela outrel;
+
+ 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_SH_RELATIVE);
+ outrel.r_addend = relocation;
+ bfd_elf32_swap_reloca_out (output_bfd, &outrel,
+ (((Elf32_External_Rela *)
+ srelgot->contents)
+ + srelgot->reloc_count));
+ ++srelgot->reloc_count;
+ }
+
+#ifdef INCLUDE_SHMEDIA
+ if (rel->r_addend)
+ local_got_offsets[symtab_hdr->sh_info + r_symndx] |= 1;
+ else
+#endif
+ local_got_offsets[r_symndx] |= 1;
+ }
+
+ relocation = sgot->output_offset + off;
+ }
+
+#ifdef GOT_BIAS
+ relocation -= GOT_BIAS;
+#endif
+
+ goto final_link_relocate;
+
+ case R_SH_GOTOFF:
+#ifdef INCLUDE_SHMEDIA
+ case R_SH_GOTOFF_LOW16:
+ case R_SH_GOTOFF_MEDLOW16:
+ case R_SH_GOTOFF_MEDHI16:
+ case R_SH_GOTOFF_HI16:
+#endif
+ /* Relocation is relative to the start of the global offset
+ table. */
+
+ if (sgot == NULL)
+ {
+ sgot = bfd_get_section_by_name (dynobj, ".got");
+ BFD_ASSERT (sgot != NULL);
+ }
+
+ /* Note that sgot->output_offset is not involved in this
+ calculation. We always want the start of .got. If we
+ defined _GLOBAL_OFFSET_TABLE in a different way, as is
+ permitted by the ABI, we might have to change this
+ calculation. */
+ relocation -= sgot->output_section->vma;
+
+#ifdef GOT_BIAS
+ relocation -= GOT_BIAS;
+#endif
+
+ addend = rel->r_addend;
+
+ goto final_link_relocate;
+
+ case R_SH_GOTPC:
+#ifdef INCLUDE_SHMEDIA
+ case R_SH_GOTPC_LOW16:
+ case R_SH_GOTPC_MEDLOW16:
+ case R_SH_GOTPC_MEDHI16:
+ case R_SH_GOTPC_HI16:
+#endif
+ /* Use global offset table as symbol value. */
+
+ if (sgot == NULL)
+ {
+ sgot = bfd_get_section_by_name (dynobj, ".got");
+ BFD_ASSERT (sgot != NULL);
+ }
+
+ relocation = sgot->output_section->vma;
+
+#ifdef GOT_BIAS
+ relocation += GOT_BIAS;
+#endif
+
+ addend = rel->r_addend;
+
+ goto final_link_relocate;
+
+ case R_SH_PLT32:
+#ifdef INCLUDE_SHMEDIA
+ case R_SH_PLT_LOW16:
+ case R_SH_PLT_MEDLOW16:
+ case R_SH_PLT_MEDHI16:
+ case R_SH_PLT_HI16:
+#endif
+ /* Relocation is to the entry for this symbol in the
+ procedure linkage table. */
+
+ /* Resolve a PLT reloc against a local symbol directly,
+ without using the procedure linkage table. */
+ if (h == NULL)
+ goto final_link_relocate;
+
+ if (ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
+ || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN)
+ goto final_link_relocate;
+
+ 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. */
+ goto final_link_relocate;
+ }
+
+ if (splt == NULL)
+ {
+ splt = bfd_get_section_by_name (dynobj, ".plt");
+ BFD_ASSERT (splt != NULL);
+ }
- /* FIXME: This is how the COFF relocations work. */
- if (r_type == (int) R_SH_IND12W)
- relocation -= 4;
+ relocation = (splt->output_section->vma
+ + splt->output_offset
+ + h->plt.offset);
+
+#ifdef INCLUDE_SHMEDIA
+ relocation++;
+#endif
- switch ((int)r_type)
- {
- case (int)R_SH_DIR32:
addend = rel->r_addend;
- /* Fall through. */
- default:
- /* COFF relocs don't use the addend. The addend is used for
- R_SH_DIR32 to be compatible with other compilers. */
- r = _bfd_final_link_relocate (howto, input_bfd, input_section,
- contents, rel->r_offset,
- relocation, addend);
- break;
+
+ goto final_link_relocate;
+
case R_SH_LOOP_START:
{
static bfd_vma start, end;
r = sh_elf_reloc_loop (r_type, input_bfd, input_section, contents,
rel->r_offset, sec, start, end);
break;
+
case R_SH_LOOP_END:
end = (relocation + rel->r_addend
- (sec->output_section->vma + sec->output_offset));
}
}
+ relocation_done:
if (r != bfd_reloc_ok)
{
switch (r)
static bfd_byte *
sh_elf_get_relocated_section_contents (output_bfd, link_info, link_order,
- data, relocateable, symbols)
+ data, relocateable, symbols)
bfd *output_bfd;
struct bfd_link_info *link_info;
struct bfd_link_order *link_order;
asymbol **symbols;
{
Elf_Internal_Shdr *symtab_hdr;
+ Elf_Internal_Shdr *shndx_hdr;
asection *input_section = link_order->u.indirect.section;
bfd *input_bfd = input_section->owner;
asection **sections = NULL;
Elf_Internal_Rela *internal_relocs = NULL;
Elf32_External_Sym *external_syms = NULL;
+ Elf_External_Sym_Shndx *shndx_buf = NULL;
+ Elf_External_Sym_Shndx *shndx;
Elf_Internal_Sym *internal_syms = NULL;
/* We only need to handle the case of relaxing, or of having a
symbols);
symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
+ shndx_hdr = &elf_tdata (input_bfd)->symtab_shndx_hdr;
memcpy (data, elf_section_data (input_section)->this_hdr.contents,
- input_section->_raw_size);
+ (size_t) input_section->_raw_size);
if ((input_section->flags & SEC_RELOC) != 0
&& input_section->reloc_count > 0)
Elf_Internal_Sym *isymp;
asection **secpp;
Elf32_External_Sym *esym, *esymend;
+ bfd_size_type amt;
if (symtab_hdr->contents != NULL)
external_syms = (Elf32_External_Sym *) symtab_hdr->contents;
- else
+ else if (symtab_hdr->sh_info != 0)
{
- external_syms = ((Elf32_External_Sym *)
- bfd_malloc (symtab_hdr->sh_info
- * sizeof (Elf32_External_Sym)));
- if (external_syms == NULL && symtab_hdr->sh_info > 0)
+ amt = symtab_hdr->sh_info;
+ amt *= sizeof (Elf32_External_Sym);
+ external_syms = (Elf32_External_Sym *) bfd_malloc (amt);
+ if (external_syms == NULL)
goto error_return;
if (bfd_seek (input_bfd, symtab_hdr->sh_offset, SEEK_SET) != 0
- || (bfd_read (external_syms, sizeof (Elf32_External_Sym),
- symtab_hdr->sh_info, input_bfd)
- != (symtab_hdr->sh_info * sizeof (Elf32_External_Sym))))
+ || bfd_bread ((PTR) external_syms, amt, input_bfd) != amt)
+ goto error_return;
+ }
+
+ if (symtab_hdr->sh_info != 0 && shndx_hdr->sh_size != 0)
+ {
+ amt = symtab_hdr->sh_info;
+ amt *= sizeof (Elf_External_Sym_Shndx);
+ shndx_buf = (Elf_External_Sym_Shndx *) bfd_malloc (amt);
+ if (shndx_buf == NULL)
+ goto error_return;
+ if (bfd_seek (input_bfd, shndx_hdr->sh_offset, SEEK_SET) != 0
+ || bfd_bread ((PTR) shndx_buf, amt, input_bfd) != amt)
goto error_return;
}
if (internal_relocs == NULL)
goto error_return;
- internal_syms = ((Elf_Internal_Sym *)
- bfd_malloc (symtab_hdr->sh_info
- * sizeof (Elf_Internal_Sym)));
- if (internal_syms == NULL && symtab_hdr->sh_info > 0)
+ amt = symtab_hdr->sh_info;
+ amt *= sizeof (Elf_Internal_Sym);
+ internal_syms = (Elf_Internal_Sym *) bfd_malloc (amt);
+ if (internal_syms == NULL && amt != 0)
goto error_return;
- sections = (asection **) bfd_malloc (symtab_hdr->sh_info
- * sizeof (asection *));
- if (sections == NULL && symtab_hdr->sh_info > 0)
+ amt = symtab_hdr->sh_info;
+ amt *= sizeof (asection *);
+ sections = (asection **) bfd_malloc (amt);
+ if (sections == NULL && amt != 0)
goto error_return;
- isymp = internal_syms;
- secpp = sections;
- esym = external_syms;
- esymend = esym + symtab_hdr->sh_info;
- for (; esym < esymend; ++esym, ++isymp, ++secpp)
+ for (isymp = internal_syms, secpp = sections, shndx = shndx_buf,
+ esym = external_syms, esymend = esym + symtab_hdr->sh_info;
+ esym < esymend;
+ ++esym, ++isymp, ++secpp, shndx = (shndx ? shndx + 1 : NULL))
{
asection *isec;
- bfd_elf32_swap_symbol_in (input_bfd, esym, isymp);
+ bfd_elf32_swap_symbol_in (input_bfd, (const PTR) esym,
+ (const PTR) shndx, isymp);
if (isymp->st_shndx == SHN_UNDEF)
isec = bfd_und_section_ptr;
- else if (isymp->st_shndx > 0 && isymp->st_shndx < SHN_LORESERVE)
- isec = bfd_section_from_elf_index (input_bfd, isymp->st_shndx);
else if (isymp->st_shndx == SHN_ABS)
isec = bfd_abs_section_ptr;
else if (isymp->st_shndx == SHN_COMMON)
isec = bfd_com_section_ptr;
else
- {
- /* Who knows? */
- isec = NULL;
- }
+ isec = bfd_section_from_elf_index (input_bfd, isymp->st_shndx);
*secpp = isec;
}
if (sections != NULL)
free (sections);
- sections = NULL;
if (internal_syms != NULL)
free (internal_syms);
- internal_syms = NULL;
+ if (shndx_buf != NULL)
+ free (shndx_buf);
if (external_syms != NULL && symtab_hdr->contents == NULL)
free (external_syms);
- external_syms = NULL;
if (internal_relocs != elf_section_data (input_section)->relocs)
free (internal_relocs);
- internal_relocs = NULL;
}
return data;
if (internal_relocs != NULL
&& internal_relocs != elf_section_data (input_section)->relocs)
free (internal_relocs);
+ if (shndx_buf != NULL)
+ free (shndx_buf);
if (external_syms != NULL && symtab_hdr->contents == NULL)
free (external_syms);
if (internal_syms != NULL)
free (sections);
return NULL;
}
+
static asection *
-sh_elf_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;
+sh_elf_gc_mark_hook (sec, info, rel, h, sym)
+ asection *sec;
+ 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_SH_GNU_VTINHERIT:
- case R_SH_GNU_VTENTRY:
- break;
+ {
+ case R_SH_GNU_VTINHERIT:
+ case R_SH_GNU_VTENTRY:
+ break;
+
+ default:
+ switch (h->root.type)
+ {
+ case bfd_link_hash_defined:
+ case bfd_link_hash_defweak:
+ return h->root.u.def.section;
- 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;
- case bfd_link_hash_common:
- return h->root.u.c.p->section;
+ default:
+ break;
+ }
+ }
+ }
+ else
+ return bfd_section_from_elf_index (sec->owner, sym->st_shndx);
- 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
sh_elf_gc_sweep_hook (abfd, info, sec, relocs)
bfd *abfd ATTRIBUTE_UNUSED;
asection *sec ATTRIBUTE_UNUSED;
const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED;
{
- /* we don't use got and plt entries for sh. */
+ /* We use got and plt entries for sh, but it would seem that the
+ existing SH code does no sort of reference counting or whatnot on
+ its GOT and PLT entries, so it is not possible to garbage collect
+ them at this time. */
return true;
}
/* Look through the relocs for a section during the first phase.
Since we don't do .gots or .plts, we just need to consider the
virtual table relocs for gc. */
-
+
static boolean
sh_elf_check_relocs (abfd, info, sec, relocs)
bfd *abfd;
struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
const Elf_Internal_Rela *rel;
const Elf_Internal_Rela *rel_end;
-
+ bfd *dynobj;
+ bfd_vma *local_got_offsets;
+ asection *sgot;
+ asection *srelgot;
+ asection *sreloc;
+
+ sgot = NULL;
+ srelgot = NULL;
+ sreloc = NULL;
+
if (info->relocateable)
return true;
-
+
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
sym_hashes = elf_sym_hashes (abfd);
- sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof(Elf32_External_Sym);
+ sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof (Elf32_External_Sym);
if (!elf_bad_symtab (abfd))
sym_hashes_end -= symtab_hdr->sh_info;
-
+
+ dynobj = elf_hash_table (info)->dynobj;
+ local_got_offsets = elf_local_got_offsets (abfd);
+
rel_end = relocs + sec->reloc_count;
for (rel = relocs; rel < rel_end; rel++)
{
struct elf_link_hash_entry *h;
unsigned long r_symndx;
-
+
r_symndx = ELF32_R_SYM (rel->r_info);
if (r_symndx < symtab_hdr->sh_info)
- h = NULL;
+ h = NULL;
else
- h = sym_hashes[r_symndx - symtab_hdr->sh_info];
-
+ h = sym_hashes[r_symndx - symtab_hdr->sh_info];
+
+ /* Some relocs require a global offset table. */
+ if (dynobj == NULL)
+ {
+ switch (ELF32_R_TYPE (rel->r_info))
+ {
+ case R_SH_GOTPLT32:
+ case R_SH_GOT32:
+ case R_SH_GOTOFF:
+ case R_SH_GOTPC:
+#ifdef INCLUDE_SHMEDIA
+ case R_SH_GOTPLT_LOW16:
+ case R_SH_GOTPLT_MEDLOW16:
+ case R_SH_GOTPLT_MEDHI16:
+ case R_SH_GOTPLT_HI16:
+ case R_SH_GOTPLT10BY4:
+ case R_SH_GOTPLT10BY8:
+ case R_SH_GOT_LOW16:
+ case R_SH_GOT_MEDLOW16:
+ case R_SH_GOT_MEDHI16:
+ case R_SH_GOT_HI16:
+ case R_SH_GOT10BY4:
+ case R_SH_GOT10BY8:
+ case R_SH_GOTOFF_LOW16:
+ case R_SH_GOTOFF_MEDLOW16:
+ case R_SH_GOTOFF_MEDHI16:
+ case R_SH_GOTOFF_HI16:
+ case R_SH_GOTPC_LOW16:
+ case R_SH_GOTPC_MEDLOW16:
+ case R_SH_GOTPC_MEDHI16:
+ case R_SH_GOTPC_HI16:
+#endif
+ elf_hash_table (info)->dynobj = dynobj = abfd;
+ if (! _bfd_elf_create_got_section (dynobj, info))
+ return false;
+ break;
+
+ default:
+ break;
+ }
+ }
+
switch (ELF32_R_TYPE (rel->r_info))
{
/* This relocation describes the C++ object vtable hierarchy.
Reconstruct it for later use during GC. */
- case R_SH_GNU_VTINHERIT:
- if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
- return false;
- break;
-
+ case R_SH_GNU_VTINHERIT:
+ if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
+ return false;
+ break;
+
/* This relocation describes which C++ vtable entries are actually
used. Record for later use during GC. */
- case R_SH_GNU_VTENTRY:
- if (!_bfd_elf32_gc_record_vtentry (abfd, sec, h, rel->r_addend))
- return false;
- break;
- }
+ case R_SH_GNU_VTENTRY:
+ if (!_bfd_elf32_gc_record_vtentry (abfd, sec, h, rel->r_addend))
+ return false;
+ break;
+
+ force_got:
+ case R_SH_GOT32:
+#ifdef INCLUDE_SHMEDIA
+ case R_SH_GOT_LOW16:
+ case R_SH_GOT_MEDLOW16:
+ case R_SH_GOT_MEDHI16:
+ case R_SH_GOT_HI16:
+ case R_SH_GOT10BY4:
+ case R_SH_GOT10BY8:
+#endif
+ /* This symbol requires a global offset table entry. */
+
+ 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)
+ {
+ srelgot = bfd_make_section (dynobj, ".rela.got");
+ if (srelgot == NULL
+ || ! bfd_set_section_flags (dynobj, srelgot,
+ (SEC_ALLOC
+ | SEC_LOAD
+ | SEC_HAS_CONTENTS
+ | SEC_IN_MEMORY
+ | SEC_LINKER_CREATED
+ | SEC_READONLY))
+ || ! bfd_set_section_alignment (dynobj, srelgot, 2))
+ return false;
+ }
+ }
+
+ if (h != NULL)
+ {
+#ifdef INCLUDE_SHMEDIA
+ if (h->type == STT_DATALABEL)
+ {
+ struct elf_sh_link_hash_entry *hsh;
+
+ h = (struct elf_link_hash_entry *) h->root.u.i.link;
+ hsh = (struct elf_sh_link_hash_entry *)h;
+ if (hsh->datalabel_got_offset != (bfd_vma) -1)
+ break;
+
+ hsh->datalabel_got_offset = sgot->_raw_size;
+ }
+ else
+ {
+#endif
+ if (h->got.offset != (bfd_vma) -1)
+ {
+ /* We have already allocated space in the .got. */
+ break;
+ }
+ h->got.offset = sgot->_raw_size;
+#ifdef INCLUDE_SHMEDIA
+ }
+#endif
+
+ /* 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
+ {
+ /* This is a global offset table entry for a local
+ symbol. */
+ if (local_got_offsets == NULL)
+ {
+ bfd_size_type size;
+ register unsigned int i;
+
+ size = symtab_hdr->sh_info;
+ size *= sizeof (bfd_vma);
+#ifdef INCLUDE_SHMEDIA
+ /* Reserve space for both the datalabel and
+ codelabel local GOT offsets. */
+ size *= 2;
+#endif
+ local_got_offsets = (bfd_vma *) bfd_alloc (abfd, size);
+ if (local_got_offsets == NULL)
+ 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;
+#ifdef INCLUDE_SHMEDIA
+ for (; i < 2 * symtab_hdr->sh_info; i++)
+ local_got_offsets[i] = (bfd_vma) -1;
+#endif
+ }
+#ifdef INCLUDE_SHMEDIA
+ if ((rel->r_addend & 1) != 0)
+ {
+ if (local_got_offsets[symtab_hdr->sh_info
+ + r_symndx] != (bfd_vma) -1)
+ {
+ /* We have already allocated space in the .got. */
+ break;
+ }
+ local_got_offsets[symtab_hdr->sh_info
+ + r_symndx] = sgot->_raw_size;
+ }
+ else
+ {
+#endif
+ if (local_got_offsets[r_symndx] != (bfd_vma) -1)
+ {
+ /* We have already allocated space in the .got. */
+ break;
+ }
+ local_got_offsets[r_symndx] = sgot->_raw_size;
+#ifdef INCLUDE_SHMEDIA
+ }
+#endif
+
+ if (info->shared)
+ {
+ /* If we are generating a shared object, we need to
+ output a R_SH_RELATIVE reloc so that the dynamic
+ linker can adjust this GOT entry. */
+ srelgot->_raw_size += sizeof (Elf32_External_Rela);
+ }
+ }
+
+ sgot->_raw_size += 4;
+
+ break;
+
+ case R_SH_GOTPLT32:
+#ifdef INCLUDE_SHMEDIA
+ case R_SH_GOTPLT_LOW16:
+ case R_SH_GOTPLT_MEDLOW16:
+ case R_SH_GOTPLT_MEDHI16:
+ case R_SH_GOTPLT_HI16:
+ case R_SH_GOTPLT10BY4:
+ case R_SH_GOTPLT10BY8:
+#endif
+ /* If this is a local symbol, we resolve it directly without
+ creating a procedure linkage table entry. */
+
+ if (h == NULL
+ || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
+ || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
+ || ! info->shared
+ || info->symbolic
+ || h->dynindx == -1
+ || h->got.offset != (bfd_vma) -1)
+ goto force_got;
+
+ /* 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;
+ }
+
+ h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
+
+ break;
+
+ case R_SH_PLT32:
+#ifdef INCLUDE_SHMEDIA
+ case R_SH_PLT_LOW16:
+ case R_SH_PLT_MEDLOW16:
+ case R_SH_PLT_MEDHI16:
+ case R_SH_PLT_HI16:
+#endif
+ /* 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 which is
+ never referenced by a dynamic object, in which case we
+ don't need to generate a procedure linkage table entry
+ after all. */
+
+ /* If this is a local symbol, we resolve it directly without
+ creating a procedure linkage table entry. */
+ if (h == NULL)
+ continue;
+
+ if (ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
+ || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN)
+ break;
+
+ h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
+
+ break;
+
+ case R_SH_DIR32:
+ case R_SH_REL32:
+ if (h != NULL)
+ h->elf_link_hash_flags |= ELF_LINK_NON_GOT_REF;
+
+ /* If we are creating a shared library, and this is a reloc
+ against a global symbol, or a non PC relative reloc
+ against a local symbol, then we need to copy the reloc
+ into the shared library. However, if we are linking with
+ -Bsymbolic, we do not need to copy a reloc against a
+ global symbol which is defined in an object we are
+ including in the link (i.e., DEF_REGULAR is set). 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). We account for that
+ possibility below by storing information in the
+ pcrel_relocs_copied field of the hash table entry. */
+ if (info->shared
+ && (sec->flags & SEC_ALLOC) != 0
+ && (ELF32_R_TYPE (rel->r_info) != R_SH_REL32
+ || (h != NULL
+ && (! info->symbolic
+ || (h->elf_link_hash_flags
+ & ELF_LINK_HASH_DEF_REGULAR) == 0))))
+ {
+ /* When creating a shared object, we must copy these
+ reloc types into the output file. We create a reloc
+ section in dynobj and make room for this reloc. */
+ if (sreloc == NULL)
+ {
+ const char *name;
+
+ name = (bfd_elf_string_from_elf_section
+ (abfd,
+ elf_elfheader (abfd)->e_shstrndx,
+ elf_section_data (sec)->rel_hdr.sh_name));
+ if (name == NULL)
+ return false;
+
+ BFD_ASSERT (strncmp (name, ".rela", 5) == 0
+ && strcmp (bfd_get_section_name (abfd, sec),
+ name + 5) == 0);
+
+ 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, flags)
+ || ! bfd_set_section_alignment (dynobj, sreloc, 2))
+ return false;
+ }
+ if (sec->flags & SEC_READONLY)
+ info->flags |= DF_TEXTREL;
+ }
+
+ sreloc->_raw_size += sizeof (Elf32_External_Rela);
+
+ /* If we are linking with -Bsymbolic, and this is a
+ global symbol, we count the number of PC relative
+ relocations we have entered for this symbol, so that
+ we can discard them again if the symbol is later
+ defined by a regular object. Note that this function
+ is only called if we are using an elf_sh linker
+ hash table, which means that h is really a pointer to
+ an elf_sh_link_hash_entry. */
+ if (h != NULL && info->symbolic
+ && ELF32_R_TYPE (rel->r_info) == R_SH_REL32)
+ {
+ struct elf_sh_link_hash_entry *eh;
+ struct elf_sh_pcrel_relocs_copied *p;
+
+ eh = (struct elf_sh_link_hash_entry *) h;
+
+ for (p = eh->pcrel_relocs_copied; p != NULL; p = p->next)
+ if (p->section == sreloc)
+ break;
+
+ if (p == NULL)
+ {
+ p = ((struct elf_sh_pcrel_relocs_copied *)
+ bfd_alloc (dynobj, (bfd_size_type) sizeof *p));
+ if (p == NULL)
+ return false;
+ p->next = eh->pcrel_relocs_copied;
+ eh->pcrel_relocs_copied = p;
+ p->section = sreloc;
+ p->count = 0;
+ }
+
+ ++p->count;
+ }
+ }
+
+ break;
+ }
}
-
+
return true;
}
-boolean
+#ifndef sh_elf_set_mach_from_flags
+static boolean
sh_elf_set_mach_from_flags (abfd)
- bfd * abfd;
+ bfd *abfd;
{
flagword flags = elf_elfheader (abfd)->e_flags;
}
return true;
}
+#endif /* not sh_elf_set_mach_from_flags */
+
+#ifndef sh_elf_set_private_flags
+/* Function to keep SH specific file flags. */
-/* Function to keep SH specific file flags. */
static boolean
sh_elf_set_private_flags (abfd, flags)
- bfd * abfd;
+ bfd *abfd;
flagword flags;
{
BFD_ASSERT (! elf_flags_init (abfd)
elf_flags_init (abfd) = true;
return sh_elf_set_mach_from_flags (abfd);
}
+#endif /* not sh_elf_set_private_flags */
+#ifndef sh_elf_copy_private_data
/* Copy backend specific data from one object module to another */
+
static boolean
sh_elf_copy_private_data (ibfd, obfd)
bfd * ibfd;
return sh_elf_set_private_flags (obfd, elf_elfheader (ibfd)->e_flags);
}
+#endif /* not sh_elf_copy_private_data */
+#ifndef sh_elf_merge_private_data
/* This routine checks for linking big and little endian objects
together, and for linking sh-dsp with sh3e / sh4 objects. */
{
flagword old_flags, new_flags;
- if (_bfd_generic_verify_endian_match (ibfd, obfd) == false)
+ if (! _bfd_generic_verify_endian_match (ibfd, obfd))
return false;
if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
if (! elf_flags_init (obfd))
{
+ /* This happens when ld starts out with a 'blank' output file. */
elf_flags_init (obfd) = true;
- elf_elfheader (obfd)->e_flags = 0;
+ elf_elfheader (obfd)->e_flags = EF_SH1;
}
old_flags = elf_elfheader (obfd)->e_flags;
new_flags = elf_elfheader (ibfd)->e_flags;
{
(*_bfd_error_handler)
("%s: uses %s instructions while previous modules use %s instructions",
- bfd_get_filename (ibfd),
+ bfd_archive_filename (ibfd),
EF_SH_HAS_DSP (new_flags) ? "dsp" : "floating point",
EF_SH_HAS_DSP (new_flags) ? "floating point" : "dsp");
bfd_set_error (bfd_error_bad_value);
return sh_elf_set_mach_from_flags (obfd);
}
+#endif /* not sh_elf_merge_private_data */
+
+/* Finish up dynamic symbol handling. We set the contents of various
+ dynamic sections here. */
+
+static boolean
+sh_elf_finish_dynamic_symbol (output_bfd, info, h, sym)
+ bfd *output_bfd;
+ struct bfd_link_info *info;
+ struct elf_link_hash_entry *h;
+ Elf_Internal_Sym *sym;
+{
+ bfd *dynobj;
+
+ dynobj = elf_hash_table (info)->dynobj;
+
+ if (h->plt.offset != (bfd_vma) -1)
+ {
+ asection *splt;
+ asection *sgot;
+ asection *srel;
+
+ bfd_vma plt_index;
+ bfd_vma got_offset;
+ Elf_Internal_Rela rel;
+
+ /* This symbol has an entry in the procedure linkage table. Set
+ it up. */
+
+ BFD_ASSERT (h->dynindx != -1);
+
+ splt = bfd_get_section_by_name (dynobj, ".plt");
+ sgot = bfd_get_section_by_name (dynobj, ".got.plt");
+ srel = bfd_get_section_by_name (dynobj, ".rela.plt");
+ BFD_ASSERT (splt != NULL && sgot != NULL && srel != NULL);
+
+ /* Get the index in the procedure linkage table which
+ corresponds to this symbol. This is the index of this symbol
+ in all the symbols for which we are making plt entries. The
+ first entry in the procedure linkage table is reserved. */
+ plt_index = h->plt.offset / elf_sh_sizeof_plt (info) - 1;
+
+ /* Get the offset into the .got table of the entry that
+ corresponds to this function. Each .got entry is 4 bytes.
+ The first three are reserved. */
+ got_offset = (plt_index + 3) * 4;
+
+#ifdef GOT_BIAS
+ got_offset -= GOT_BIAS;
+#endif
+
+ /* Fill in the entry in the procedure linkage table. */
+ if (! info->shared)
+ {
+ if (elf_sh_plt_entry == NULL)
+ {
+ elf_sh_plt_entry = (bfd_big_endian (output_bfd) ?
+ elf_sh_plt_entry_be : elf_sh_plt_entry_le);
+ }
+ memcpy (splt->contents + h->plt.offset, elf_sh_plt_entry,
+ elf_sh_sizeof_plt (info));
+#ifdef INCLUDE_SHMEDIA
+ movi_shori_putval (output_bfd,
+ (sgot->output_section->vma
+ + sgot->output_offset
+ + got_offset),
+ (splt->contents + h->plt.offset
+ + elf_sh_plt_symbol_offset (info)));
+
+ movi_shori_putval (output_bfd,
+ (splt->output_section->vma + splt->output_offset),
+ (splt->contents + h->plt.offset
+ + elf_sh_plt_plt0_offset (info)));
+#else
+ bfd_put_32 (output_bfd,
+ (sgot->output_section->vma
+ + sgot->output_offset
+ + got_offset),
+ (splt->contents + h->plt.offset
+ + elf_sh_plt_symbol_offset (info)));
+
+ bfd_put_32 (output_bfd,
+ (splt->output_section->vma + splt->output_offset),
+ (splt->contents + h->plt.offset
+ + elf_sh_plt_plt0_offset (info)));
+#endif
+ }
+ else
+ {
+ if (elf_sh_pic_plt_entry == NULL)
+ {
+ elf_sh_pic_plt_entry = (bfd_big_endian (output_bfd) ?
+ elf_sh_pic_plt_entry_be :
+ elf_sh_pic_plt_entry_le);
+ }
+ memcpy (splt->contents + h->plt.offset, elf_sh_pic_plt_entry,
+ elf_sh_sizeof_plt (info));
+#ifdef INCLUDE_SHMEDIA
+ movi_shori_putval (output_bfd, got_offset,
+ (splt->contents + h->plt.offset
+ + elf_sh_plt_symbol_offset (info)));
+#else
+ bfd_put_32 (output_bfd, got_offset,
+ (splt->contents + h->plt.offset
+ + elf_sh_plt_symbol_offset (info)));
+#endif
+ }
+
+#ifdef GOT_BIAS
+ got_offset += GOT_BIAS;
+#endif
+
+#ifdef INCLUDE_SHMEDIA
+ movi_shori_putval (output_bfd,
+ plt_index * sizeof (Elf32_External_Rela),
+ (splt->contents + h->plt.offset
+ + elf_sh_plt_reloc_offset (info)));
+#else
+ bfd_put_32 (output_bfd, plt_index * sizeof (Elf32_External_Rela),
+ (splt->contents + h->plt.offset
+ + elf_sh_plt_reloc_offset (info)));
+#endif
+
+ /* Fill in the entry in the global offset table. */
+ bfd_put_32 (output_bfd,
+ (splt->output_section->vma
+ + splt->output_offset
+ + h->plt.offset
+ + elf_sh_plt_temp_offset (info)),
+ sgot->contents + got_offset);
+
+ /* Fill in the entry in the .rela.plt section. */
+ rel.r_offset = (sgot->output_section->vma
+ + sgot->output_offset
+ + got_offset);
+ rel.r_info = ELF32_R_INFO (h->dynindx, R_SH_JMP_SLOT);
+ rel.r_addend = 0;
+#ifdef GOT_BIAS
+ rel.r_addend = GOT_BIAS;
+#endif
+ bfd_elf32_swap_reloca_out (output_bfd, &rel,
+ ((Elf32_External_Rela *) srel->contents
+ + plt_index));
+
+ if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
+ {
+ /* Mark the symbol as undefined, rather than as defined in
+ the .plt section. Leave the value alone. */
+ sym->st_shndx = SHN_UNDEF;
+ }
+ }
+
+ if (h->got.offset != (bfd_vma) -1)
+ {
+ asection *sgot;
+ asection *srel;
+ Elf_Internal_Rela rel;
+
+ /* This symbol has an entry in the global offset table. Set it
+ up. */
+
+ sgot = bfd_get_section_by_name (dynobj, ".got");
+ srel = bfd_get_section_by_name (dynobj, ".rela.got");
+ BFD_ASSERT (sgot != NULL && srel != NULL);
+
+ rel.r_offset = (sgot->output_section->vma
+ + sgot->output_offset
+ + (h->got.offset &~ (bfd_vma) 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))
+ {
+ rel.r_info = ELF32_R_INFO (0, R_SH_RELATIVE);
+ rel.r_addend = (h->root.u.def.value
+ + h->root.u.def.section->output_section->vma
+ + h->root.u.def.section->output_offset);
+ }
+ else
+ {
+ bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
+ rel.r_info = ELF32_R_INFO (h->dynindx, R_SH_GLOB_DAT);
+ rel.r_addend = 0;
+ }
+
+ bfd_elf32_swap_reloca_out (output_bfd, &rel,
+ ((Elf32_External_Rela *) srel->contents
+ + srel->reloc_count));
+ ++srel->reloc_count;
+ }
+
+ if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0)
+ {
+ asection *s;
+ Elf_Internal_Rela rel;
+
+ /* This symbol needs a copy reloc. Set it up. */
+
+ BFD_ASSERT (h->dynindx != -1
+ && (h->root.type == bfd_link_hash_defined
+ || h->root.type == bfd_link_hash_defweak));
+
+ s = bfd_get_section_by_name (h->root.u.def.section->owner,
+ ".rela.bss");
+ BFD_ASSERT (s != NULL);
+
+ rel.r_offset = (h->root.u.def.value
+ + h->root.u.def.section->output_section->vma
+ + h->root.u.def.section->output_offset);
+ rel.r_info = ELF32_R_INFO (h->dynindx, R_SH_COPY);
+ rel.r_addend = 0;
+ bfd_elf32_swap_reloca_out (output_bfd, &rel,
+ ((Elf32_External_Rela *) s->contents
+ + s->reloc_count));
+ ++s->reloc_count;
+ }
+
+ /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
+ if (strcmp (h->root.root.string, "_DYNAMIC") == 0
+ || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
+ sym->st_shndx = SHN_ABS;
+
+ return true;
+}
+
+/* Finish up the dynamic sections. */
+
+static boolean
+sh_elf_finish_dynamic_sections (output_bfd, info)
+ bfd *output_bfd;
+ struct bfd_link_info *info;
+{
+ bfd *dynobj;
+ asection *sgot;
+ asection *sdyn;
+
+ dynobj = elf_hash_table (info)->dynobj;
+
+ sgot = bfd_get_section_by_name (dynobj, ".got.plt");
+ BFD_ASSERT (sgot != NULL);
+ sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
+
+ if (elf_hash_table (info)->dynamic_sections_created)
+ {
+ asection *splt;
+ Elf32_External_Dyn *dyncon, *dynconend;
+
+ BFD_ASSERT (sdyn != NULL);
+
+ dyncon = (Elf32_External_Dyn *) sdyn->contents;
+ dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->_raw_size);
+ for (; dyncon < dynconend; dyncon++)
+ {
+ Elf_Internal_Dyn dyn;
+ const char *name;
+ asection *s;
+
+ bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
+
+ switch (dyn.d_tag)
+ {
+ default:
+ break;
+
+ case DT_PLTGOT:
+ name = ".got";
+ goto get_vma;
+
+ case DT_JMPREL:
+ name = ".rela.plt";
+ get_vma:
+ s = bfd_get_section_by_name (output_bfd, name);
+ BFD_ASSERT (s != NULL);
+ dyn.d_un.d_ptr = s->vma;
+ bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
+ break;
+
+ case DT_PLTRELSZ:
+ s = bfd_get_section_by_name (output_bfd, ".rela.plt");
+ BFD_ASSERT (s != NULL);
+ 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);
+ break;
+
+ case DT_RELASZ:
+ /* My reading of the SVR4 ABI indicates that the
+ procedure linkage table relocs (DT_JMPREL) should be
+ included in the overall relocs (DT_RELA). This is
+ what Solaris does. However, UnixWare can not handle
+ that case. Therefore, we override the DT_RELASZ entry
+ here to make it not include the JMPREL relocs. Since
+ the linker script arranges for .rela.plt to follow all
+ other relocation sections, we don't have to worry
+ about changing the DT_RELA entry. */
+ s = bfd_get_section_by_name (output_bfd, ".rela.plt");
+ if (s != NULL)
+ {
+ 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);
+ break;
+ }
+ }
+
+ /* Fill in the first entry in the procedure linkage table. */
+ splt = bfd_get_section_by_name (dynobj, ".plt");
+ if (splt && splt->_raw_size > 0)
+ {
+ if (info->shared)
+ {
+ if (elf_sh_pic_plt_entry == NULL)
+ {
+ elf_sh_pic_plt_entry = (bfd_big_endian (output_bfd) ?
+ elf_sh_pic_plt_entry_be :
+ elf_sh_pic_plt_entry_le);
+ }
+ memcpy (splt->contents, elf_sh_pic_plt_entry,
+ elf_sh_sizeof_plt (info));
+ }
+ else
+ {
+ if (elf_sh_plt0_entry == NULL)
+ {
+ elf_sh_plt0_entry = (bfd_big_endian (output_bfd) ?
+ elf_sh_plt0_entry_be :
+ elf_sh_plt0_entry_le);
+ }
+ memcpy (splt->contents, elf_sh_plt0_entry, PLT_ENTRY_SIZE);
+#ifdef INCLUDE_SHMEDIA
+ movi_shori_putval (output_bfd,
+ sgot->output_section->vma
+ + sgot->output_offset,
+ splt->contents
+ + elf_sh_plt0_gotplt_offset (info));
+#else
+ bfd_put_32 (output_bfd,
+ sgot->output_section->vma + sgot->output_offset + 4,
+ splt->contents + elf_sh_plt0_gotid_offset (info));
+ bfd_put_32 (output_bfd,
+ sgot->output_section->vma + sgot->output_offset + 8,
+ splt->contents + elf_sh_plt0_linker_offset (info));
+#endif
+ }
+
+ /* UnixWare sets the entsize of .plt to 4, although that doesn't
+ really seem like the right value. */
+ elf_section_data (splt->output_section)->this_hdr.sh_entsize = 4;
+ }
+ }
+
+ /* Fill in the first three entries in the global offset table. */
+ if (sgot->_raw_size > 0)
+ {
+ 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);
+ bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4);
+ bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
+ }
+
+ elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
+
+ return true;
+}
+
+static enum elf_reloc_type_class
+sh_elf_reloc_type_class (rela)
+ const Elf_Internal_Rela *rela;
+{
+ switch ((int) ELF32_R_TYPE (rela->r_info))
+ {
+ case R_SH_RELATIVE:
+ return reloc_class_relative;
+ case R_SH_JMP_SLOT:
+ return reloc_class_plt;
+ case R_SH_COPY:
+ return reloc_class_copy;
+ default:
+ return reloc_class_normal;
+ }
+}
+#ifndef ELF_ARCH
#define TARGET_BIG_SYM bfd_elf32_sh_vec
#define TARGET_BIG_NAME "elf32-sh"
#define TARGET_LITTLE_SYM bfd_elf32_shl_vec
#define TARGET_LITTLE_NAME "elf32-shl"
#define ELF_ARCH bfd_arch_sh
#define ELF_MACHINE_CODE EM_SH
-#define ELF_MAXPAGESIZE 0x1
+#define ELF_MAXPAGESIZE 128
#define elf_symbol_leading_char '_'
+#endif /* ELF_ARCH */
#define bfd_elf32_bfd_reloc_type_lookup sh_elf_reloc_type_lookup
#define elf_info_to_howto sh_elf_info_to_howto
#define elf_backend_gc_sweep_hook sh_elf_gc_sweep_hook
#define elf_backend_check_relocs sh_elf_check_relocs
-#define elf_backend_can_gc_sections 1
+#define elf_backend_can_gc_sections 1
+#define elf_backend_create_dynamic_sections \
+ sh_elf_create_dynamic_sections
+#define bfd_elf32_bfd_link_hash_table_create \
+ sh_elf_link_hash_table_create
+#define elf_backend_adjust_dynamic_symbol \
+ sh_elf_adjust_dynamic_symbol
+#define elf_backend_size_dynamic_sections \
+ sh_elf_size_dynamic_sections
+#define elf_backend_finish_dynamic_symbol \
+ sh_elf_finish_dynamic_symbol
+#define elf_backend_finish_dynamic_sections \
+ sh_elf_finish_dynamic_sections
+#define elf_backend_reloc_type_class sh_elf_reloc_type_class
+
+#define elf_backend_want_got_plt 1
+#define elf_backend_plt_readonly 1
+#define elf_backend_want_plt_sym 0
+#define elf_backend_got_header_size 12
+#define elf_backend_plt_header_size PLT_ENTRY_SIZE
#include "elf32-target.h"
projects / deliverable / binutils-gdb.git / blobdiff