PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
static void m32r_info_to_howto_rel
PARAMS ((bfd *, arelent *, Elf_Internal_Rela *));
+static void m32r_info_to_howto
+ PARAMS ((bfd *, arelent *, Elf_Internal_Rela *));
bfd_boolean _bfd_m32r_elf_section_from_bfd_section
PARAMS ((bfd *, asection *, int *));
void _bfd_m32r_elf_symbol_processing
PARAMS ((bfd *, struct bfd_link_info *, asection *,
const Elf_Internal_Rela *));
+static bfd_boolean m32r_elf_adjust_dynamic_symbol
+ PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *));
+static bfd_boolean m32r_elf_size_dynamic_sections
+ PARAMS ((bfd *, struct bfd_link_info *));
+
asection * m32r_elf_gc_mark_hook
PARAMS ((asection *, struct bfd_link_info *, Elf_Internal_Rela *,
struct elf_link_hash_entry *, Elf_Internal_Sym *));
+static bfd_boolean m32r_elf_create_dynamic_sections
+ PARAMS ((bfd *, struct bfd_link_info *));
+
+static bfd_boolean m32r_elf_finish_dynamic_sections
+ PARAMS ((bfd *, struct bfd_link_info *));
+
+static bfd_boolean m32r_elf_finish_dynamic_symbol
+ PARAMS ((bfd *, struct bfd_link_info *, struct elf_link_hash_entry *,
+ Elf_Internal_Sym *));
+
+static bfd_boolean allocate_dynrelocs
+ PARAMS ((struct elf_link_hash_entry *, PTR));
+static bfd_boolean readonly_dynrelocs
+ PARAMS ((struct elf_link_hash_entry *, PTR));
+static enum elf_reloc_type_class m32r_elf_reloc_type_class
+ PARAMS ((const Elf_Internal_Rela *));
+static bfd_boolean m32r_elf_fake_sections
+ PARAMS ((bfd *, Elf_Internal_Shdr *, asection *));
+
#define NOP_INSN 0x7000
#define MAKE_PARALLEL(insn) ((insn) | 0x8000)
This only saves space in libraries and object files, but perhaps
relocs will be put in ROM? All in all though, REL relocs are a pain
to work with. */
-#define USE_REL 1
+/* #define USE_REL 1
#ifndef USE_REL
#define USE_REL 0
-#endif
+#endif */
+/* Use RELA. But use REL to link old objects for backwords compatibility. */
+
+/* Functions for the M32R ELF linker. */
+
+/* The name of the dynamic interpreter. This is put in the .interp
+ section. */
+
+#define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1"
+
+/* The nop opcode we use. */
+
+#define M32R_NOP 0x7000f000
+
+#define PLT_EMPTY 0x10101010 /* RIE -> RIE */
+
+/* The size in bytes of an entry in the procedure linkage table. */
+
+#define PLT_ENTRY_SIZE 20
+#define PLT_HEADER_SIZE 20
+
+/* The first one entries in a procedure linkage table are reserved,
+ and the initial contents are unimportant (we zero them out).
+ Subsequent entries look like this. */
+
+#define PLT0_ENTRY_WORD0 0xd6c00000 /* seth r6, #high(.got+4) */
+#define PLT0_ENTRY_WORD1 0x86e60000 /* or3 r6, r6, #low(.got)+4) */
+#define PLT0_ENTRY_WORD2 0x24e626c6 /* ld r4, @r6+ -> ld r6, @r6 */
+#define PLT0_ENTRY_WORD3 0x1fc6f000 /* jmp r6 || pnop */
+#define PLT0_ENTRY_WORD4 PLT_EMPTY /* RIE -> RIE */
+
+#define PLT0_PIC_ENTRY_WORD0 0xa4cc0004 /* ld r4, @(4,r12) */
+#define PLT0_PIC_ENTRY_WORD1 0xa6cc0008 /* ld r6, @(8,r12) */
+#define PLT0_PIC_ENTRY_WORD2 0x1fc6f000 /* jmp r6 || nop */
+#define PLT0_PIC_ENTRY_WORD3 PLT_EMPTY /* RIE -> RIE */
+#define PLT0_PIC_ENTRY_WORD4 PLT_EMPTY /* RIE -> RIE */
+
+#define PLT_ENTRY_WORD0 0xe6000000 /* ld24 r6, .name_in_GOT */
+#define PLT_ENTRY_WORD1 0x06acf000 /* add r6, r12 || nop */
+#define PLT_ENTRY_WORD0b 0xd6c00000 /* seth r6, #high(.name_in_GOT) */
+#define PLT_ENTRY_WORD1b 0x86e60000 /* or3 r6, r6, #low(.name_in_GOT) */
+#define PLT_ENTRY_WORD2 0x26c61fc6 /* ld r6, @r6 -> jmp r6 */
+#define PLT_ENTRY_WORD3 0xe5000000 /* ld24 r5, $offset */
+#define PLT_ENTRY_WORD4 0xff000000 /* bra .plt0. */
+
static reloc_howto_type m32r_elf_howto_table[] =
{
0, /* dst_mask */
FALSE), /* pcrel_offset */
+ EMPTY_HOWTO (13),
+ EMPTY_HOWTO (14),
+ EMPTY_HOWTO (15),
+ EMPTY_HOWTO (16),
+ EMPTY_HOWTO (17),
+ EMPTY_HOWTO (18),
+ EMPTY_HOWTO (19),
+ EMPTY_HOWTO (20),
+ EMPTY_HOWTO (21),
+ EMPTY_HOWTO (22),
+ EMPTY_HOWTO (23),
+ EMPTY_HOWTO (24),
+ EMPTY_HOWTO (25),
+ EMPTY_HOWTO (26),
+ EMPTY_HOWTO (27),
+ EMPTY_HOWTO (28),
+ EMPTY_HOWTO (29),
+ EMPTY_HOWTO (30),
+ EMPTY_HOWTO (31),
+ EMPTY_HOWTO (32),
+
+ /* A 16 bit absolute relocation. */
+ HOWTO (R_M32R_16_RELA, /* type */
+ 0, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_M32R_16_RELA", /* name */
+ FALSE, /* partial_inplace */
+ 0xffff, /* src_mask */
+ 0xffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* A 32 bit absolute relocation. */
+ HOWTO (R_M32R_32_RELA, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ bfd_elf_generic_reloc,/* special_function */
+ "R_M32R_32_RELA", /* name */
+ FALSE, /* partial_inplace */
+ 0xffffffff, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* A 24 bit address. */
+ HOWTO (R_M32R_24_RELA, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 24, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_unsigned, /* complain_on_overflow */
+ bfd_elf_generic_reloc,/* special_function */
+ "R_M32R_24_RELA", /* name */
+ FALSE, /* partial_inplace */
+ 0xffffff, /* src_mask */
+ 0xffffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ HOWTO (R_M32R_10_PCREL_RELA, /* type */
+ 2, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 10, /* bitsize */
+ TRUE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ m32r_elf_10_pcrel_reloc, /* special_function */
+ "R_M32R_10_PCREL_RELA",/* name */
+ FALSE, /* partial_inplace */
+ 0xff, /* src_mask */
+ 0xff, /* dst_mask */
+ TRUE), /* pcrel_offset */
+
+ /* A relative 18 bit relocation, right shifted by 2. */
+ HOWTO (R_M32R_18_PCREL_RELA, /* type */
+ 2, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ TRUE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_M32R_18_PCREL_RELA",/* name */
+ FALSE, /* partial_inplace */
+ 0xffff, /* src_mask */
+ 0xffff, /* dst_mask */
+ TRUE), /* pcrel_offset */
+
+ /* A relative 26 bit relocation, right shifted by 2. */
+ HOWTO (R_M32R_26_PCREL_RELA, /* type */
+ 2, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 26, /* bitsize */
+ TRUE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_M32R_26_PCREL_RELA",/* name */
+ FALSE, /* partial_inplace */
+ 0xffffff, /* src_mask */
+ 0xffffff, /* dst_mask */
+ TRUE), /* pcrel_offset */
+
+ /* High 16 bits of address when lower 16 is or'd in. */
+ HOWTO (R_M32R_HI16_ULO_RELA, /* type */
+ 16, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_M32R_HI16_ULO_RELA",/* name */
+ FALSE, /* partial_inplace */
+ 0x0000ffff, /* src_mask */
+ 0x0000ffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* High 16 bits of address when lower 16 is added in. */
+ HOWTO (R_M32R_HI16_SLO_RELA, /* type */
+ 16, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_M32R_HI16_SLO_RELA",/* name */
+ FALSE, /* partial_inplace */
+ 0x0000ffff, /* src_mask */
+ 0x0000ffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* Lower 16 bits of address. */
+ HOWTO (R_M32R_LO16_RELA, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_M32R_LO16_RELA", /* name */
+ FALSE, /* partial_inplace */
+ 0x0000ffff, /* src_mask */
+ 0x0000ffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* Small data area 16 bits offset. */
+ HOWTO (R_M32R_SDA16_RELA, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_M32R_SDA16_RELA", /* name */
+ TRUE, /* partial_inplace */ /* FIXME: correct? */
+ 0x0000ffff, /* src_mask */
+ 0x0000ffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* GNU extension to record C++ vtable hierarchy */
+ HOWTO (R_M32R_RELA_GNU_VTINHERIT, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 0, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ NULL, /* special_function */
+ "R_M32R_RELA_GNU_VTINHERIT", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* GNU extension to record C++ vtable member usage */
+ HOWTO (R_M32R_RELA_GNU_VTENTRY, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 0, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ _bfd_elf_rel_vtable_reloc_fn, /* special_function */
+ "R_M32R_RELA_GNU_VTENTRY", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ EMPTY_HOWTO (45),
+ EMPTY_HOWTO (46),
+ EMPTY_HOWTO (47),
+
+ /* Like R_M32R_24, but referring to the GOT table entry for
+ the symbol. */
+ HOWTO (R_M32R_GOT24, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 24, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_unsigned, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_M32R_GOT24", /* name */
+ FALSE, /* partial_inplace */
+ 0xffffff, /* src_mask */
+ 0xffffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* Like R_M32R_PCREL, but referring to the procedure linkage table
+ entry for the symbol. */
+ HOWTO (R_M32R_26_PLTREL, /* type */
+ 2, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 24, /* bitsize */
+ TRUE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_M32R_26_PLTREL", /* name */
+ FALSE, /* partial_inplace */
+ 0xffffff, /* src_mask */
+ 0xffffff, /* dst_mask */
+ TRUE), /* pcrel_offset */
+
+ /* This is used only by the dynamic linker. The symbol should exist
+ both in the object being run and in some shared library. The
+ dynamic linker copies the data addressed by the symbol from the
+ shared library into the object, because the object being
+ run has to have the data at some particular address. */
+ HOWTO (R_M32R_COPY, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_M32R_COPY", /* name */
+ FALSE, /* partial_inplace */
+ 0xffffffff, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* Like R_M32R_24, but used when setting global offset table
+ entries. */
+ HOWTO (R_M32R_GLOB_DAT, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_M32R_GLOB_DAT", /* name */
+ FALSE, /* partial_inplace */
+ 0xffffffff, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* Marks a procedure linkage table entry for a symbol. */
+ HOWTO (R_M32R_JMP_SLOT, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_M32R_JMP_SLOT", /* name */
+ FALSE, /* partial_inplace */
+ 0xffffffff, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* Used only by the dynamic linker. When the object is run, this
+ longword is set to the load address of the object, plus the
+ addend. */
+ HOWTO (R_M32R_RELATIVE, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_M32R_RELATIVE", /* name */
+ FALSE, /* partial_inplace */
+ 0xffffffff, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ HOWTO (R_M32R_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, /* special_function */
+ "R_M32R_GOTOFF", /* name */
+ FALSE, /* partial_inplace */
+ 0xffffffff, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* An PC Relative 24-bit relocation used when setting PIC offset
+ table register. */
+ HOWTO (R_M32R_GOTPC24, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 24, /* bitsize */
+ TRUE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_unsigned, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_M32R_GOTPC24", /* name */
+ FALSE, /* partial_inplace */
+ 0xffffff, /* src_mask */
+ 0xffffff, /* dst_mask */
+ TRUE), /* pcrel_offset */
+
+ /* Like R_M32R_HI16_ULO, but referring to the GOT table entry for
+ the symbol. */
+ HOWTO (R_M32R_GOT16_HI_ULO, /* type */
+ 16, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_M32R_GOT16_HI_ULO", /* name */
+ FALSE, /* partial_inplace */
+ 0x0000ffff, /* src_mask */
+ 0x0000ffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* Like R_M32R_HI16_SLO, but referring to the GOT table entry for
+ the symbol. */
+ HOWTO (R_M32R_GOT16_HI_SLO, /* type */
+ 16, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_M32R_GOT16_HI_SLO", /* name */
+ FALSE, /* partial_inplace */
+ 0x0000ffff, /* src_mask */
+ 0x0000ffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* Like R_M32R_LO16, but referring to the GOT table entry for
+ the symbol. */
+ HOWTO (R_M32R_GOT16_LO, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_M32R_GOT16_LO", /* name */
+ FALSE, /* partial_inplace */
+ 0x0000ffff, /* src_mask */
+ 0x0000ffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* An PC Relative relocation used when setting PIC offset table register.
+ Like R_M32R_HI16_ULO, but referring to the GOT table entry for
+ the symbol. */
+ HOWTO (R_M32R_GOTPC_HI_ULO, /* type */
+ 16, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_M32R_GOTPC_HI_ULO", /* name */
+ FALSE, /* partial_inplace */
+ 0x0000ffff, /* src_mask */
+ 0x0000ffff, /* dst_mask */
+ TRUE), /* pcrel_offset */
+
+ /* An PC Relative relocation used when setting PIC offset table register.
+ Like R_M32R_HI16_SLO, but referring to the GOT table entry for
+ the symbol. */
+ HOWTO (R_M32R_GOTPC_HI_SLO, /* type */
+ 16, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_M32R_GOTPC_HI_SLO", /* name */
+ FALSE, /* partial_inplace */
+ 0x0000ffff, /* src_mask */
+ 0x0000ffff, /* dst_mask */
+ TRUE), /* pcrel_offset */
+
+ /* An PC Relative relocation used when setting PIC offset table register.
+ Like R_M32R_LO16, but referring to the GOT table entry for
+ the symbol. */
+ HOWTO (R_M32R_GOTPC_LO, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_M32R_GOTPC_LO", /* name */
+ FALSE, /* partial_inplace */
+ 0x0000ffff, /* src_mask */
+ 0x0000ffff, /* dst_mask */
+ TRUE), /* pcrel_offset */
};
\f
/* Handle the R_M32R_10_PCREL reloc. */
unsigned char elf_reloc_val;
};
-static const struct m32r_reloc_map m32r_reloc_map[] =
+static const struct m32r_reloc_map m32r_reloc_map_old[] =
{
{ BFD_RELOC_NONE, R_M32R_NONE },
{ BFD_RELOC_16, R_M32R_16 },
{ BFD_RELOC_VTABLE_ENTRY, R_M32R_GNU_VTENTRY },
};
+static const struct m32r_reloc_map m32r_reloc_map[] =
+{
+ { BFD_RELOC_NONE, R_M32R_NONE },
+ { BFD_RELOC_16, R_M32R_16_RELA },
+ { BFD_RELOC_32, R_M32R_32_RELA },
+ { BFD_RELOC_M32R_24, R_M32R_24_RELA },
+ { BFD_RELOC_M32R_10_PCREL, R_M32R_10_PCREL_RELA },
+ { BFD_RELOC_M32R_18_PCREL, R_M32R_18_PCREL_RELA },
+ { BFD_RELOC_M32R_26_PCREL, R_M32R_26_PCREL_RELA },
+ { BFD_RELOC_M32R_HI16_ULO, R_M32R_HI16_ULO_RELA },
+ { BFD_RELOC_M32R_HI16_SLO, R_M32R_HI16_SLO_RELA },
+ { BFD_RELOC_M32R_LO16, R_M32R_LO16_RELA },
+ { BFD_RELOC_M32R_SDA16, R_M32R_SDA16_RELA },
+ { BFD_RELOC_VTABLE_INHERIT, R_M32R_RELA_GNU_VTINHERIT },
+ { BFD_RELOC_VTABLE_ENTRY, R_M32R_RELA_GNU_VTENTRY },
+
+ { BFD_RELOC_M32R_GOT24, R_M32R_GOT24 },
+ { BFD_RELOC_M32R_26_PLTREL, R_M32R_26_PLTREL },
+ { BFD_RELOC_M32R_COPY, R_M32R_COPY },
+ { BFD_RELOC_M32R_GLOB_DAT, R_M32R_GLOB_DAT },
+ { BFD_RELOC_M32R_JMP_SLOT, R_M32R_JMP_SLOT },
+ { BFD_RELOC_M32R_RELATIVE, R_M32R_RELATIVE },
+ { BFD_RELOC_M32R_GOTOFF, R_M32R_GOTOFF },
+ { BFD_RELOC_M32R_GOTPC24, R_M32R_GOTPC24 },
+ { BFD_RELOC_M32R_GOT16_HI_ULO, R_M32R_GOT16_HI_ULO },
+ { BFD_RELOC_M32R_GOT16_HI_SLO, R_M32R_GOT16_HI_SLO },
+ { BFD_RELOC_M32R_GOT16_LO, R_M32R_GOT16_LO },
+ { BFD_RELOC_M32R_GOTPC_HI_ULO, R_M32R_GOTPC_HI_ULO },
+ { BFD_RELOC_M32R_GOTPC_HI_SLO, R_M32R_GOTPC_HI_SLO },
+ { BFD_RELOC_M32R_GOTPC_LO, R_M32R_GOTPC_LO },
+};
+
static reloc_howto_type *
bfd_elf32_bfd_reloc_type_lookup (abfd, code)
bfd *abfd ATTRIBUTE_UNUSED;
{
unsigned int i;
+#ifdef USE_M32R_OLD_RELOC
+ for (i = 0;
+ i < sizeof (m32r_reloc_map_old) / sizeof (struct m32r_reloc_map);
+ i++)
+ {
+ if (m32r_reloc_map_old[i].bfd_reloc_val == code)
+ return &m32r_elf_howto_table[m32r_reloc_map_old[i].elf_reloc_val];
+ }
+#else /* ! USE_M32R_OLD_RELOC */
+
for (i = 0;
i < sizeof (m32r_reloc_map) / sizeof (struct m32r_reloc_map);
i++)
if (m32r_reloc_map[i].bfd_reloc_val == code)
return &m32r_elf_howto_table[m32r_reloc_map[i].elf_reloc_val];
}
+#endif
return NULL;
}
unsigned int r_type;
r_type = ELF32_R_TYPE (dst->r_info);
- BFD_ASSERT (r_type < (unsigned int) R_M32R_max);
+ BFD_ASSERT (ELF32_R_TYPE(dst->r_info) <= (unsigned int) R_M32R_GNU_VTENTRY)
cache_ptr->howto = &m32r_elf_howto_table[r_type];
}
+
+static void
+m32r_info_to_howto (abfd, cache_ptr, dst)
+ bfd *abfd ATTRIBUTE_UNUSED;
+ arelent *cache_ptr;
+ Elf_Internal_Rela *dst;
+{
+ BFD_ASSERT ((ELF32_R_TYPE(dst->r_info) == (unsigned int) R_M32R_NONE)
+ || ((ELF32_R_TYPE(dst->r_info) > (unsigned int) R_M32R_GNU_VTENTRY)
+ && (ELF32_R_TYPE(dst->r_info) < (unsigned int) R_M32R_max)));
+ cache_ptr->howto = &m32r_elf_howto_table[ELF32_R_TYPE(dst->r_info)];
+}
+
\f
/* Given a BFD section, try to locate the corresponding ELF section
index. */
struct bfd_link_hash_entry *bh;
asection *s = bfd_get_section_by_name (abfd, ".sdata");
- /* The following code was cobbled from elf32-ppc.c and elflink.c. */
+ /* The following code was cobbled from elf32-ppc.c and elflink.c. */
+
+ if (s == NULL)
+ {
+ flagword flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
+ | SEC_IN_MEMORY | SEC_LINKER_CREATED);
+
+ s = bfd_make_section_anyway (abfd, ".sdata");
+ if (s == NULL)
+ return FALSE;
+ bfd_set_section_flags (abfd, s, flags);
+ bfd_set_section_alignment (abfd, s, 2);
+ }
+
+ bh = bfd_link_hash_lookup (info->hash, "_SDA_BASE_",
+ FALSE, FALSE, FALSE);
+
+ if ((bh == NULL || bh->type == bfd_link_hash_undefined)
+ && !(_bfd_generic_link_add_one_symbol (info,
+ abfd,
+ "_SDA_BASE_",
+ BSF_GLOBAL,
+ s,
+ (bfd_vma) 32768,
+ (const char *) NULL,
+ FALSE,
+ get_elf_backend_data (abfd)->collect,
+ &bh)))
+ return FALSE;
+ h = (struct elf_link_hash_entry *) bh;
+ h->type = STT_OBJECT;
+ }
+
+ switch (sym->st_shndx)
+ {
+ case SHN_M32R_SCOMMON:
+ *secp = bfd_make_section_old_way (abfd, ".scommon");
+ (*secp)->flags |= SEC_IS_COMMON;
+ *valp = sym->st_size;
+ break;
+ }
+
+ return TRUE;
+}
+
+/* We have to figure out the SDA_BASE value, so that we can adjust the
+ symbol value correctly. We look up the symbol _SDA_BASE_ in the output
+ BFD. If we can't find it, we're stuck. We cache it in the ELF
+ target data. We don't need to adjust the symbol value for an
+ external symbol if we are producing relocatable output. */
+
+static bfd_reloc_status_type
+m32r_elf_final_sda_base (output_bfd, info, error_message, psb)
+ bfd *output_bfd;
+ struct bfd_link_info *info;
+ const char **error_message;
+ bfd_vma *psb;
+{
+ if (elf_gp (output_bfd) == 0)
+ {
+ struct bfd_link_hash_entry *h;
+
+ h = bfd_link_hash_lookup (info->hash, "_SDA_BASE_", FALSE, FALSE, TRUE);
+ if (h != (struct bfd_link_hash_entry *) NULL
+ && h->type == bfd_link_hash_defined)
+ elf_gp (output_bfd) = (h->u.def.value
+ + h->u.def.section->output_section->vma
+ + h->u.def.section->output_offset);
+ else
+ {
+ /* Only get the error once. */
+ *psb = elf_gp (output_bfd) = 4;
+ *error_message =
+ (const char *) _("SDA relocation when _SDA_BASE_ not defined");
+ return bfd_reloc_dangerous;
+ }
+ }
+ *psb = elf_gp (output_bfd);
+ return bfd_reloc_ok;
+}
+\f
+/* Return size of a PLT entry. */
+#define elf_m32r_sizeof_plt(info) PLT_ENTRY_SIZE
+
+/* The m32r 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_m32r_pcrel_relocs_copied
+{
+ /* Next section. */
+ struct elf_m32r_pcrel_relocs_copied *next;
+ /* A section in dynobj. */
+ asection *section;
+ /* Number of relocs copied in this section. */
+ bfd_size_type count;
+};
+
+/* The sh linker needs to keep track of the number of relocs that it
+ decides to copy as dynamic relocs in check_relocs for each symbol.
+ This is so that it can later discard them if they are found to be
+ unnecessary. We store the information in a field extending the
+ regular ELF linker hash table. */
+
+struct elf_m32r_dyn_relocs
+{
+ struct elf_m32r_dyn_relocs *next;
+
+ /* The input section of the reloc. */
+ asection *sec;
+
+ /* Total number of relocs copied for the input section. */
+ bfd_size_type count;
+
+ /* Number of pc-relative relocs copied for the input section. */
+ bfd_size_type pc_count;
+};
+
+
+/* m32r ELF linker hash entry. */
+
+struct elf_m32r_link_hash_entry
+{
+ struct elf_link_hash_entry root;
+
+ /* Track dynamic relocs copied for this symbol. */
+ struct elf_m32r_dyn_relocs *dyn_relocs;
+
+// bfd_signed_vma gotplt_refcount;
+
+ /* Number of PC relative relocs copied for this symbol. */
+ /* struct elf_m32r_pcrel_relocs_copied *pcrel_relocs_copied; FIXME */
+};
+
+/* m32r ELF linker hash table. */
+
+struct elf_m32r_link_hash_table
+{
+ struct elf_link_hash_table root;
+
+ /* Short-cuts to get to dynamic linker sections. */
+ asection *sgot;
+ asection *sgotplt;
+ asection *srelgot;
+ asection *splt;
+ asection *srelplt;
+ asection *sdynbss;
+ asection *srelbss;
+
+ /* Small local sym to section mapping cache. */
+ struct sym_sec_cache sym_sec;
+};
+
+/* Traverse an m32r ELF linker hash table. */
+
+#define m32r_elf_link_hash_traverse(table, func, info) \
+ (elf_link_hash_traverse \
+ (&(table)->root, \
+ (bfd_boolean (*) PARAMS ((struct elf_link_hash_entry *, PTR))) (func), \
+ (info)))
+
+/* Get the m32r ELF linker hash table from a link_info structure. */
+
+
+#define m32r_elf_hash_table(p) \
+ ((struct elf_m32r_link_hash_table *) ((p)->hash))
+
+/* Create an entry in an m32r ELF linker hash table. */
+static struct bfd_hash_entry *
+m32r_elf_link_hash_newfunc (struct bfd_hash_entry *, struct bfd_hash_table *,
+ const char * );
+
+static struct bfd_hash_entry *
+m32r_elf_link_hash_newfunc (entry, table, string)
+ struct bfd_hash_entry *entry;
+ struct bfd_hash_table *table;
+ const char *string;
+{
+ struct elf_m32r_link_hash_entry *ret =
+ (struct elf_m32r_link_hash_entry *) entry;
+
+ /* Allocate the structure if it has not already been allocated by a
+ subclass. */
+ if (ret == (struct elf_m32r_link_hash_entry *) NULL)
+ ret = ((struct elf_m32r_link_hash_entry *)
+ bfd_hash_allocate (table,
+ sizeof (struct elf_m32r_link_hash_entry)));
+ if (ret == (struct elf_m32r_link_hash_entry *) NULL)
+ return (struct bfd_hash_entry *) ret;
+
+ /* Call the allocation method of the superclass. */
+ ret = ((struct elf_m32r_link_hash_entry *)
+ _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
+ table, string));
+ if (ret != (struct elf_m32r_link_hash_entry *) NULL)
+ {
+ struct elf_m32r_link_hash_entry *eh;
+
+ eh = (struct elf_m32r_link_hash_entry *) ret;
+ eh->dyn_relocs = NULL;
+// eh->gotplt_refcount = 0;
+ /* eh->pcrel_relocs_copied = NULL; FIXME */
+ }
+
+ return (struct bfd_hash_entry *) ret;
+}
+
+/* Create an m32r ELF linker hash table. */
+static struct bfd_link_hash_table *m32r_elf_link_hash_table_create (bfd *);
+
+static struct bfd_link_hash_table *
+m32r_elf_link_hash_table_create (abfd)
+ bfd *abfd;
+{
+ struct elf_m32r_link_hash_table *ret;
+ bfd_size_type amt = sizeof (struct elf_m32r_link_hash_table);
+
+ ret = (struct elf_m32r_link_hash_table *) bfd_malloc (amt);
+ if (ret == (struct elf_m32r_link_hash_table *) NULL)
+ return NULL;
+
+ if (! _bfd_elf_link_hash_table_init (&ret->root, abfd,
+ m32r_elf_link_hash_newfunc))
+ {
+ free (ret);
+ return NULL;
+ }
+
+ ret->sgot = NULL;
+ ret->sgotplt = NULL;
+ ret->srelgot = NULL;
+ ret->splt = NULL;
+ ret->srelplt = NULL;
+ ret->sdynbss = NULL;
+ ret->srelbss = NULL;
+ ret->sym_sec.abfd = NULL;
+
+ return &ret->root.root;
+}
+
+/* Create .got, .gotplt, and .rela.got sections in DYNOBJ, and set up
+ shortcuts to them in our hash table. */
+static bfd_boolean create_got_section (bfd *, struct bfd_link_info *);
+
+static bfd_boolean
+create_got_section (dynobj, info)
+ bfd *dynobj;
+ struct bfd_link_info *info;
+{
+ struct elf_m32r_link_hash_table *htab;
+
+ if (! _bfd_elf_create_got_section (dynobj, info))
+ return FALSE;
+
+ htab = m32r_elf_hash_table (info);
+ htab->sgot = bfd_get_section_by_name (dynobj, ".got");
+ htab->sgotplt = bfd_get_section_by_name (dynobj, ".got.plt");
+ if (! htab->sgot || ! htab->sgotplt)
+ abort ();
+
+ htab->srelgot = bfd_make_section (dynobj, ".rela.got");
+ if (htab->srelgot == NULL
+ || ! bfd_set_section_flags (dynobj, htab->srelgot,
+ (SEC_ALLOC
+ | SEC_LOAD
+ | SEC_HAS_CONTENTS
+ | SEC_IN_MEMORY
+ | SEC_LINKER_CREATED
+ | SEC_READONLY))
+ || ! bfd_set_section_alignment (dynobj, htab->srelgot, 2))
+ return FALSE;
+
+ return TRUE;
+}
+
+/* Create dynamic sections when linking against a dynamic object. */
+
+static bfd_boolean
+m32r_elf_create_dynamic_sections (abfd, info)
+ bfd *abfd;
+ struct bfd_link_info *info;
+{
+ struct elf_m32r_link_hash_table *htab;
+ flagword flags, pltflags;
+ register asection *s;
+ const struct elf_backend_data *bed = get_elf_backend_data (abfd);
+ int ptralign = 2; /* 32bit */
+
+ htab = m32r_elf_hash_table (info);
+
+ /* 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");
+ htab->splt = s;
+ 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)
+ {
+ /* 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;
+
+ if (info->shared
+ && ! _bfd_elf_link_record_dynamic_symbol (info, h))
+ return FALSE;
+ }
+
+ s = bfd_make_section (abfd,
+ bed->default_use_rela_p ? ".rela.plt" : ".rel.plt");
+ htab->srelplt = s;
+ if (s == NULL
+ || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY)
+ || ! bfd_set_section_alignment (abfd, s, ptralign))
+ return FALSE;
+
+ if (htab->sgot == NULL
+ && ! 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);
+ if (bfd_get_section_by_name (abfd, secname))
+ continue;
+ 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)
+ {
+ /* 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");
+ htab->sdynbss = s;
+ if (s == NULL
+ || ! bfd_set_section_flags (abfd, s, SEC_ALLOC))
+ return FALSE;
+ /* 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)
+ {
+ s = bfd_make_section (abfd,
+ (bed->default_use_rela_p
+ ? ".rela.bss" : ".rel.bss"));
+ htab->srelbss = s;
+ if (s == NULL
+ || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY)
+ || ! bfd_set_section_alignment (abfd, s, ptralign))
+ return FALSE;
+ }
+ }
+
+ return TRUE;
+}
+
+/* Copy the extra info we tack onto an elf_link_hash_entry. */
+static void m32r_elf_copy_indirect_symbol (const struct elf_backend_data *,
+ struct elf_link_hash_entry *,
+ struct elf_link_hash_entry *);
+
+static void
+m32r_elf_copy_indirect_symbol (const struct elf_backend_data *bed,
+ struct elf_link_hash_entry *dir,
+ struct elf_link_hash_entry *ind)
+{
+ struct elf_m32r_link_hash_entry *edir, *eind;
+
+ edir = (struct elf_m32r_link_hash_entry *) dir;
+ eind = (struct elf_m32r_link_hash_entry *) ind;
+
+ if (eind->dyn_relocs != NULL)
+ {
+ if (edir->dyn_relocs != NULL)
+ {
+ struct elf_m32r_dyn_relocs **pp;
+ struct elf_m32r_dyn_relocs *p;
+
+ if (ind->root.type == bfd_link_hash_indirect)
+ abort ();
+
+ /* Add reloc counts against the weak sym to the strong sym
+ list. Merge any entries against the same section. */
+ for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
+ {
+ struct elf_m32r_dyn_relocs *q;
+
+ for (q = edir->dyn_relocs; q != NULL; q = q->next)
+ if (q->sec == p->sec)
+ {
+ q->pc_count += p->pc_count;
+ q->count += p->count;
+ *pp = p->next;
+ break;
+ }
+ if (q == NULL)
+ pp = &p->next;
+ }
+ *pp = edir->dyn_relocs;
+ }
+
+ edir->dyn_relocs = eind->dyn_relocs;
+ eind->dyn_relocs = NULL;
+ }
+
+// if (ind->root.type == bfd_link_hash_indirect
+// && dir->got.refcount <= 0)
+// {
+// edir->tls_type = eind->tls_type;
+// eind->tls_type = GOT_UNKNOWN;
+// }
+ _bfd_elf_link_hash_copy_indirect (bed, dir, ind);
+}
+
+\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 bfd_boolean
+m32r_elf_adjust_dynamic_symbol (info, h)
+ struct bfd_link_info *info;
+ struct elf_link_hash_entry *h;
+{
+ struct elf_m32r_link_hash_table *htab;
+ struct elf_m32r_link_hash_entry *eh;
+ struct elf_m32r_dyn_relocs *p;
+ bfd *dynobj;
+ asection *s;
+ unsigned int power_of_two;
+
+#ifdef DEBUG_PIC
+printf("m32r_elf_adjust_dynamic_symbol()\n");
+#endif
+
+ 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
+ && h->root.type != bfd_link_hash_undefweak
+ && h->root.type != bfd_link_hash_undefined)
+ {
+ /* 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 PCREL
+ reloc instead. */
+ h->plt.offset = (bfd_vma) -1;
+ h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
+ }
+
+ return TRUE;
+ }
+ else
+ h->plt.offset = (bfd_vma) -1;
+
+ /* 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_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;
+ }
+
+ /* This is a reference to a symbol defined by a dynamic object which
+ is not a function. */
+
+ /* 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;
+
+ /* 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 -z nocopyreloc was given, we won't generate them either. */
+ if (info->nocopyreloc)
+ {
+ h->elf_link_hash_flags &= ~ELF_LINK_NON_GOT_REF;
+ return TRUE;
+ }
+
+ eh = (struct elf_m32r_link_hash_entry *) h;
+ for (p = eh->dyn_relocs; p != NULL; p = p->next)
+ {
+ s = p->sec->output_section;
+ if (s != NULL && (s->flags & (SEC_READONLY | SEC_HAS_CONTENTS)) != 0)
+ break;
+ }
+
+ /* If we didn't find any dynamic relocs in sections which needs the
+ copy reloc, then we'll be keeping the dynamic relocs and avoiding
+ the copy reloc. */
+ if (p == NULL)
+ {
+ h->elf_link_hash_flags &= ~ELF_LINK_NON_GOT_REF;
+ return TRUE;
+ }
+
+ /* 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. */
+
+ htab = m32r_elf_hash_table (info);
+ s = htab->sdynbss;
+ BFD_ASSERT (s != NULL);
+
+ /* We must generate a R_M32R_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 = htab->srelbss;
+ BFD_ASSERT (srel != NULL);
+ srel->_raw_size += sizeof (Elf32_External_Rela);
+ h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY;
+ }
+
+ /* 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;
+
+ /* 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;
+ }
+
+ /* 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;
+}
+
+/* This is the condition under which finish_dynamic_symbol will be called
+ from elflink.h. If elflink.h doesn't call our finish_dynamic_symbol
+ routine, we'll need to do something about initializing any .plt and .got
+ entries in relocate_section. */
+#define WILL_CALL_FINISH_DYNAMIC_SYMBOL(DYN, INFO, H) \
+ ((DYN) \
+ && ((INFO)->shared \
+ || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) \
+ && ((H)->dynindx != -1 \
+ || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0))
+
+/* Allocate space in .plt, .got and associated reloc sections for
+ dynamic relocs. */
+
+static bfd_boolean
+allocate_dynrelocs (h, inf)
+ struct elf_link_hash_entry *h;
+ PTR inf;
+{
+ struct bfd_link_info *info;
+ struct elf_m32r_link_hash_table *htab;
+ struct elf_m32r_link_hash_entry *eh;
+ struct elf_m32r_dyn_relocs *p;
+
+ if (h->root.type == bfd_link_hash_indirect)
+ return TRUE;
+
+ if (h->root.type == bfd_link_hash_warning)
+ /* When warning symbols are created, they **replace** the "real"
+ entry in the hash table, thus we never get to see the real
+ symbol in a hash traversal. So look at it now. */
+ h = (struct elf_link_hash_entry *) h->root.u.i.link;
+
+ info = (struct bfd_link_info *) inf;
+ htab = m32r_elf_hash_table (info);
+
+ eh = (struct elf_m32r_link_hash_entry *) h;
+// if ((h->got.refcount > 0
+// || (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL))
+// && eh->gotplt_refcount > 0)
+// {
+// /* The symbol has been forced local, or we have some direct got refs,
+// so treat all the gotplt refs as got refs. */
+// h->got.refcount += eh->gotplt_refcount;
+// if (h->plt.refcount >= eh->gotplt_refcount)
+// h->plt.refcount -= eh->gotplt_refcount;
+// }
+
+ if (htab->root.dynamic_sections_created
+ && h->plt.refcount > 0)
+ {
+ /* Make sure this symbol is output as a dynamic symbol.
+ Undefined weak syms won't yet be marked as dynamic. */
+ if (h->dynindx == -1
+ && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0)
+ {
+ if (! bfd_elf32_link_record_dynamic_symbol (info, h))
+ return FALSE;
+ }
+
+ if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info, h))
+ {
+ asection *s = htab->splt;
+
+ /* 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;
+
+ h->plt.offset = s->_raw_size;
+
+ /* If this symbol is not defined in a regular file, and we are
+ not generating a shared library, then set the symbol to this
+ location in the .plt. This is required to make function
+ pointers compare as equal between the normal executable and
+ the shared library. */
+ if (! info->shared
+ && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
+ {
+ h->root.u.def.section = s;
+ h->root.u.def.value = h->plt.offset;
+ }
+
+ /* Make room for this entry. */
+ s->_raw_size += PLT_ENTRY_SIZE;
+
+ /* We also need to make an entry in the .got.plt section, which
+ will be placed in the .got section by the linker script. */
+ htab->sgotplt->_raw_size += 4;
+
+ /* We also need to make an entry in the .rel.plt section. */
+ htab->srelplt->_raw_size += sizeof (Elf32_External_Rela);
+ }
+ else
+ {
+ h->plt.offset = (bfd_vma) -1;
+ h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
+ }
+ }
+ else
+ {
+ h->plt.offset = (bfd_vma) -1;
+ h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
+ }
+
+ if (h->got.refcount > 0)
+ {
+ asection *s;
+ bfd_boolean dyn;
+
+ /* Make sure this symbol is output as a dynamic symbol.
+ Undefined weak syms won't yet be marked as dynamic. */
+ if (h->dynindx == -1
+ && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0)
+ {
+ if (! bfd_elf32_link_record_dynamic_symbol (info, h))
+ return FALSE;
+ }
+
+ s = htab->sgot;
+
+ h->got.offset = s->_raw_size;
+ s->_raw_size += 4;
+ dyn = htab->root.dynamic_sections_created;
+ if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info, h))
+ htab->srelgot->_raw_size += sizeof (Elf32_External_Rela);
+ }
+ else
+ h->got.offset = (bfd_vma) -1;
+
+ if (eh->dyn_relocs == NULL)
+ return TRUE;
+
+ /* In the shared -Bsymbolic case, discard space allocated for
+ dynamic pc-relative relocs against symbols which turn out to be
+ defined in regular objects. For the normal shared case, discard
+ space for pc-relative relocs that have become local due to symbol
+ visibility changes. */
+
+ if (info->shared)
+ {
+ if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0
+ && ((h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0
+ || info->symbolic))
+ {
+ struct elf_m32r_dyn_relocs **pp;
+ for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
+ {
+ p->count -= p->pc_count;
+ p->pc_count = 0;
+ if (p->count == 0)
+ *pp = p->next;
+ else
+ pp = &p->next;
+ }
+ }
+ }
+ else
+ {
+ /* For the non-shared case, discard space for relocs against
+ symbols which turn out to need copy relocs or are not
+ dynamic. */
+
+ if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0
+ && (((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0
+ && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
+ || (htab->root.dynamic_sections_created
+ && (h->root.type == bfd_link_hash_undefweak
+ || h->root.type == bfd_link_hash_undefined))))
+ {
+ /* Make sure this symbol is output as a dynamic symbol.
+ Undefined weak syms won't yet be marked as dynamic. */
+ if (h->dynindx == -1
+ && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0)
+ {
+ if (! bfd_elf32_link_record_dynamic_symbol (info, h))
+ return FALSE;
+ }
+
+ /* If that succeeded, we know we'll be keeping all the
+ relocs. */
+ if (h->dynindx != -1)
+ goto keep;
+ }
+
+ eh->dyn_relocs = NULL;
+
+ keep: ;
+ }
+
+ /* Finally, allocate space. */
+ for (p = eh->dyn_relocs; p != NULL; p = p->next)
+ {
+ asection *sreloc = elf_section_data (p->sec)->sreloc;
+ sreloc->_raw_size += p->count * sizeof (Elf32_External_Rela);
+ }
+
+ return TRUE;
+}
+/* Find any dynamic relocs that apply to read-only sections. */
+
+static bfd_boolean
+readonly_dynrelocs (h, inf)
+ struct elf_link_hash_entry *h;
+ PTR inf;
+{
+ struct elf_m32r_link_hash_entry *eh;
+ struct elf_m32r_dyn_relocs *p;
+
+ if (h->root.type == bfd_link_hash_warning)
+ h = (struct elf_link_hash_entry *) h->root.u.i.link;
- if (s == NULL)
- {
- flagword flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
- | SEC_IN_MEMORY | SEC_LINKER_CREATED);
+ eh = (struct elf_m32r_link_hash_entry *) h;
+ for (p = eh->dyn_relocs; p != NULL; p = p->next)
+ {
+ asection *s = p->sec->output_section;
- s = bfd_make_section_anyway (abfd, ".sdata");
- if (s == NULL)
- return FALSE;
- bfd_set_section_flags (abfd, s, flags);
- bfd_set_section_alignment (abfd, s, 2);
- }
+ if (s != NULL && (s->flags & SEC_READONLY) != 0)
+ {
+ struct bfd_link_info *info = (struct bfd_link_info *) inf;
- bh = bfd_link_hash_lookup (info->hash, "_SDA_BASE_",
- FALSE, FALSE, FALSE);
+ info->flags |= DF_TEXTREL;
- if ((bh == NULL || bh->type == bfd_link_hash_undefined)
- && !(_bfd_generic_link_add_one_symbol (info,
- abfd,
- "_SDA_BASE_",
- BSF_GLOBAL,
- s,
- (bfd_vma) 32768,
- (const char *) NULL,
- FALSE,
- get_elf_backend_data (abfd)->collect,
- &bh)))
- return FALSE;
- h = (struct elf_link_hash_entry *) bh;
- h->type = STT_OBJECT;
+ /* Not an error, just cut short the traversal. */
+ return FALSE;
+ }
}
+ return TRUE;
+}
- switch (sym->st_shndx)
+/* Set the sizes of the dynamic sections. */
+
+static bfd_boolean
+m32r_elf_size_dynamic_sections (output_bfd, info)
+ bfd *output_bfd ATTRIBUTE_UNUSED;
+ struct bfd_link_info *info;
+{
+ struct elf_m32r_link_hash_table *htab;
+ bfd *dynobj;
+ asection *s;
+ bfd_boolean relocs;
+ bfd *ibfd;
+
+#ifdef DEBUG_PIC
+printf("m32r_elf_size_dynamic_sections()\n");
+#endif
+
+ htab = m32r_elf_hash_table (info);
+ dynobj = htab->root.dynobj;
+ BFD_ASSERT (dynobj != NULL);
+
+ if (htab->root.dynamic_sections_created)
{
- case SHN_M32R_SCOMMON:
- *secp = bfd_make_section_old_way (abfd, ".scommon");
- (*secp)->flags |= SEC_IS_COMMON;
- *valp = sym->st_size;
- break;
+ /* 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;
+ }
}
- return TRUE;
-}
+ /* Set up .got offsets for local syms, and space for local dynamic
+ relocs. */
+ for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
+ {
+ bfd_signed_vma *local_got;
+ bfd_signed_vma *end_local_got;
+ bfd_size_type locsymcount;
+ Elf_Internal_Shdr *symtab_hdr;
+ asection *srel;
-/* We have to figure out the SDA_BASE value, so that we can adjust the
- symbol value correctly. We look up the symbol _SDA_BASE_ in the output
- BFD. If we can't find it, we're stuck. We cache it in the ELF
- target data. We don't need to adjust the symbol value for an
- external symbol if we are producing relocatable output. */
+ if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
+ continue;
-static bfd_reloc_status_type
-m32r_elf_final_sda_base (output_bfd, info, error_message, psb)
- bfd *output_bfd;
- struct bfd_link_info *info;
- const char **error_message;
- bfd_vma *psb;
-{
- if (elf_gp (output_bfd) == 0)
+ for (s = ibfd->sections; s != NULL; s = s->next)
+ {
+ struct elf_m32r_dyn_relocs *p;
+
+ for (p = ((struct elf_m32r_dyn_relocs *)
+ elf_section_data (s)->local_dynrel);
+ p != NULL;
+ p = p->next)
+ {
+ if (! bfd_is_abs_section (p->sec)
+ && bfd_is_abs_section (p->sec->output_section))
+ {
+ /* Input section has been discarded, either because
+ it is a copy of a linkonce section or due to
+ linker script /DISCARD/, so we'll be discarding
+ the relocs too. */
+ }
+ else if (p->count != 0)
+ {
+ srel = elf_section_data (p->sec)->sreloc;
+ srel->_raw_size += p->count * sizeof (Elf32_External_Rela);
+ if ((p->sec->output_section->flags & SEC_READONLY) != 0)
+ info->flags |= DF_TEXTREL;
+ }
+ }
+ }
+
+ local_got = elf_local_got_refcounts (ibfd);
+ if (!local_got)
+ continue;
+
+ symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
+ locsymcount = symtab_hdr->sh_info;
+ end_local_got = local_got + locsymcount;
+ s = htab->sgot;
+ srel = htab->srelgot;
+ for (; local_got < end_local_got; ++local_got)
+ {
+ if (*local_got > 0)
+ {
+ *local_got = s->_raw_size;
+ s->_raw_size += 4;
+ if (info->shared)
+ srel->_raw_size += sizeof (Elf32_External_Rela);
+ }
+ else
+ *local_got = (bfd_vma) -1;
+ }
+ }
+
+ /* Allocate global sym .plt and .got entries, and space for global
+ sym dynamic relocs. */
+ elf_link_hash_traverse (&htab->root, allocate_dynrelocs, (PTR) info);
+
+ /* We now have determined the sizes of the various dynamic sections.
+ Allocate memory for them. */
+ relocs = FALSE;
+ for (s = dynobj->sections; s != NULL; s = s->next)
{
- struct bfd_link_hash_entry *h;
+ if ((s->flags & SEC_LINKER_CREATED) == 0)
+ continue;
- h = bfd_link_hash_lookup (info->hash, "_SDA_BASE_", FALSE, FALSE, TRUE);
- if (h != (struct bfd_link_hash_entry *) NULL
- && h->type == bfd_link_hash_defined)
- elf_gp (output_bfd) = (h->u.def.value
- + h->u.def.section->output_section->vma
- + h->u.def.section->output_offset);
+ if (s == htab->splt
+ || s == htab->sgot
+ || s == htab->sgotplt)
+ {
+ /* Strip this section if we don't need it; see the
+ comment below. */
+ }
+ else if (strncmp (bfd_get_section_name (dynobj, s), ".rela", 5) == 0)
+ {
+ if (s->_raw_size != 0 && s != htab->srelplt)
+ 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
+ {
+ /* It's not one of our sections, so don't allocate space. */
+ continue;
+ }
+
+ 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. */
+ _bfd_strip_section_from_output (info, s);
+ continue;
+ }
+
+ /* Allocate memory for the section contents. We use bfd_zalloc
+ here in case unused entries are not reclaimed before the
+ section's contents are written out. This should not happen,
+ but this way if it does, we get a R_M32R_NONE reloc instead
+ of garbage. */
+ s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->_raw_size);
+ if (s->contents == NULL)
+ return FALSE;
+ }
+
+ if (htab->root.dynamic_sections_created)
+ {
+ /* Add some entries to the .dynamic section. We fill in the
+ values later, in m32r_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)
{
- /* Only get the error once. */
- *psb = elf_gp (output_bfd) = 4;
- *error_message =
- (const char *) _("SDA relocation when _SDA_BASE_ not defined");
- return bfd_reloc_dangerous;
+ if (! add_dynamic_entry (DT_DEBUG, 0))
+ return FALSE;
}
+
+ if (htab->splt->_raw_size != 0)
+ {
+ 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;
+ }
+
+ if (relocs)
+ {
+ if (! add_dynamic_entry (DT_RELA, 0)
+ || ! add_dynamic_entry (DT_RELASZ, 0)
+ || ! add_dynamic_entry (DT_RELAENT,
+ sizeof (Elf32_External_Rela)))
+ return FALSE;
+
+ /* If any dynamic relocs apply to a read-only section,
+ then we need a DT_TEXTREL entry. */
+ if ((info->flags & DF_TEXTREL) == 0)
+ elf_link_hash_traverse (&htab->root, readonly_dynrelocs,
+ (PTR) info);
+
+ if ((info->flags & DF_TEXTREL) != 0)
+ {
+ if (! add_dynamic_entry (DT_TEXTREL, 0))
+ return FALSE;
+ }
+ }
}
- *psb = elf_gp (output_bfd);
- return bfd_reloc_ok;
+#undef add_dynamic_entry
+
+ return TRUE;
}
-\f
/* Relocate an M32R/D ELF section.
There is some attempt to make this function usable for many architectures,
both for RELA and REL type relocs, if only to serve as a learning tool.
/* Assume success. */
bfd_boolean ret = TRUE;
-#if !USE_REL
- if (info->relocatable)
- return TRUE;
-#endif
+ struct elf_m32r_link_hash_table *htab = m32r_elf_hash_table (info);
+ bfd *dynobj;
+ bfd_vma *local_got_offsets;
+ asection *sgot, *splt, *sreloc;
+
+ dynobj = htab->root.dynobj;
+ local_got_offsets = elf_local_got_offsets (input_bfd);
+
+ sgot = htab->sgot;
+ splt = htab->splt;
+ sreloc = NULL;
rel = relocs;
relend = relocs + input_section->reloc_count;
int r_type;
reloc_howto_type *howto;
unsigned long r_symndx;
+ struct elf_link_hash_entry *h;
/* We can't modify r_addend here as elf_link_input_bfd has an assert to
- ensure it's zero (we use REL relocs, not RELA). Therefore this
- should be assigning zero to `addend', but for clarity we use
- `r_addend'. */
+ ensure it's zero (we use REL relocs, not RELA). Therefore this
+ should be assigning zero to `addend', but for clarity we use
+ `r_addend'. */
bfd_vma addend = rel->r_addend;
bfd_vma offset = rel->r_offset;
- struct elf_link_hash_entry *h;
Elf_Internal_Sym *sym;
asection *sec;
const char *sym_name;
bfd_reloc_status_type r;
const char *errmsg = NULL;
+ bfd_boolean use_rel = FALSE;
h = NULL;
r_type = ELF32_R_TYPE (rel->r_info);
}
if (r_type == R_M32R_GNU_VTENTRY
- || r_type == R_M32R_GNU_VTINHERIT)
+ || r_type == R_M32R_GNU_VTINHERIT
+ || r_type == R_M32R_NONE
+ || r_type == R_M32R_RELA_GNU_VTENTRY
+ || r_type == R_M32R_RELA_GNU_VTINHERIT)
continue;
+ if (r_type <= R_M32R_GNU_VTENTRY)
+ use_rel = TRUE;
+
howto = m32r_elf_howto_table + r_type;
r_symndx = ELF32_R_SYM (rel->r_info);
-#if USE_REL
- if (info->relocatable)
+ if (info->relocatable && (use_rel == TRUE))
{
/* This is a relocatable link. We don't have to change
anything, unless the reloc is against a section symbol,
}
}
else
-#endif /* USE_REL */
{
bfd_vma relocation;
/* This is a final link. */
sym = NULL;
sec = NULL;
+ h = NULL;
if (r_symndx < symtab_hdr->sh_info)
{
sym = local_syms + r_symndx;
sec = local_sections[r_symndx];
sym_name = "<local symbol>";
-#if !USE_REL
- relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
- addend = rel->r_addend;
-#else
- /* FIXME: This won't handle local relocations against SEC_MERGE
- symbols. See elf32-i386.c for how to do this. */
- relocation = (sec->output_section->vma
- + sec->output_offset
- + sym->st_value);
-#endif
+
+ if (use_rel == FALSE)
+ {
+ relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
+ addend = rel->r_addend;
+
+ if (info->relocatable)
+ {
+ /* This is a relocatable 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 (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
+ rel->r_addend += sec->output_offset + sym->st_value;
+
+ continue;
+ }
+ }
+ else
+ {
+ relocation = (sec->output_section->vma
+ + sec->output_offset
+ + sym->st_value);
+ }
}
else
{
/* External symbol. */
+ if (info->relocatable && (use_rel == FALSE))
+ 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)
if (h->root.type == bfd_link_hash_defined
|| h->root.type == bfd_link_hash_defweak)
{
+ bfd_boolean dyn;
sec = h->root.u.def.section;
- if (sec->output_section == NULL)
- relocation = 0;
+
+ dyn = htab->root.dynamic_sections_created;
+ sec = h->root.u.def.section;
+ if (r_type == R_M32R_GOTPC24
+ || (r_type == R_M32R_GOTPC_HI_ULO
+ || r_type == R_M32R_GOTPC_HI_SLO
+ || r_type == R_M32R_GOTPC_LO)
+ || (r_type == R_M32R_26_PLTREL
+ && h->plt.offset != (bfd_vma) -1)
+ || ((r_type == R_M32R_GOT24
+ || r_type == R_M32R_GOT16_HI_ULO
+ || r_type == R_M32R_GOT16_HI_SLO
+ || r_type == R_M32R_GOT16_LO)
+ && WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info, h)
+ && (! info->shared
+ || (! info->symbolic && h->dynindx != -1)
+ || (h->elf_link_hash_flags
+ & ELF_LINK_HASH_DEF_REGULAR) == 0))
+ || (info->shared
+ && ((! info->symbolic && h->dynindx != -1)
+ || (h->elf_link_hash_flags
+ & ELF_LINK_HASH_DEF_REGULAR) == 0)
+ && (((r_type == R_M32R_16_RELA
+ || r_type == R_M32R_32_RELA
+ || r_type == R_M32R_24_RELA
+ || r_type == R_M32R_HI16_ULO_RELA
+ || r_type == R_M32R_HI16_SLO_RELA
+ || r_type == R_M32R_LO16_RELA)
+ && (h->elf_link_hash_flags
+ & ELF_LINK_FORCED_LOCAL) == 0)
+ || r_type == R_M32R_10_PCREL_RELA
+ || r_type == R_M32R_18_PCREL_RELA
+ || r_type == R_M32R_26_PCREL_RELA)
+ && ((input_section->flags & SEC_ALLOC) != 0
+ /* DWARF will emit R_M32R_16(24,32) 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
+ && (h->elf_link_hash_flags
+ & ELF_LINK_HASH_DEF_DYNAMIC) != 0))))
+ {
+ /* In these cases, we don't need the relocation
+ value. We check specially because in some
+ obscure cases sec->output_section will be NULL. */
+ relocation = 0;
+ }
+ else if (sec->output_section == NULL)
+ {
+ (*_bfd_error_handler)
+ (_("%s: warning: unresolvable relocation against symbol `%s' from %s section"),
+ bfd_get_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
}
else if (h->root.type == bfd_link_hash_undefweak)
relocation = 0;
+ else if (info->shared
+ && (!info->symbolic)
+ && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
+ relocation = 0;
else
{
if (! ((*info->callbacks->undefined_symbol)
(info, h->root.root.string, input_bfd,
- input_section, offset, TRUE)))
+ input_section, offset,
+ (!info->shared
+ || ELF_ST_VISIBILITY (h->other)))))
return FALSE;
relocation = 0;
}
switch ((int) r_type)
{
+ case R_M32R_GOTPC24:
+ /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
+ ld24 rx,#_GLOBAL_OFFSET_TABLE_
+ */
+ relocation = sgot->output_section->vma;
+ break;
+
+ case R_M32R_GOTPC_HI_ULO:
+ case R_M32R_GOTPC_HI_SLO:
+ case R_M32R_GOTPC_LO:
+ {
+ /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
+ bl .+4
+ seth rx,#high(_GLOBAL_OFFSET_TABLE_)
+ or3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
+ or
+ bl .+4
+ seth rx,#shigh(_GLOBAL_OFFSET_TABLE_)
+ add3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
+ */
+ relocation = sgot->output_section->vma;
+ relocation -= (input_section->output_section->vma
+ + input_section->output_offset
+ + rel->r_offset);
+ if ((r_type == R_M32R_GOTPC_HI_SLO)
+ && ((relocation + rel->r_addend) & 0x8000))
+ rel->r_addend += 0x10000;
+
+ break;
+ }
+ case R_M32R_GOT16_HI_ULO:
+ case R_M32R_GOT16_HI_SLO:
+ case R_M32R_GOT16_LO:
+ /* Fall through. */
+ case R_M32R_GOT24:
+ /* Relocation is to the entry for this symbol in the global
+ offset table. */
+ BFD_ASSERT (sgot != NULL);
+
+ if (h != NULL)
+ {
+ bfd_boolean dyn;
+ bfd_vma off;
+
+ off = h->got.offset;
+ BFD_ASSERT (off != (bfd_vma) -1);
+
+ dyn = htab->root.dynamic_sections_created;
+ if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info, h)
+ || (info->shared
+ && (info->symbolic
+ || h->dynindx == -1
+ || (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL))
+ && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)))
+ {
+ /* This is actually a static link, or it is a
+ -Bsymbolic link and the symbol is defined
+ locally, or the symbol was forced to be local
+ because of a version file. We must initialize
+ this entry in the global offset table. Since the
+ offset must always be a multiple of 4, we use the
+ least significant bit to record whether we have
+ initialized it already.
+
+ When doing a dynamic link, we create a .rela.got
+ relocation entry to initialize the value. This
+ is done in the finish_dynamic_symbol routine. */
+ if ((off & 1) != 0)
+ off &= ~1;
+ else
+ {
+ bfd_put_32 (output_bfd, relocation,
+ sgot->contents + off);
+ h->got.offset |= 1;
+ }
+ }
+
+ relocation = sgot->output_offset + off;
+ }
+ else
+ {
+ bfd_vma off;
+ bfd_byte *loc;
+
+ BFD_ASSERT (local_got_offsets != NULL
+ && local_got_offsets[r_symndx] != (bfd_vma) -1);
+
+ off = local_got_offsets[r_symndx];
+
+ /* The offset must always be a multiple of 4. We use
+ the least significant bit to record whether we have
+ already processed this entry. */
+ 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;
+
+ /* We need to generate a R_M32R_RELATIVE reloc
+ for the dynamic linker. */
+ srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
+ BFD_ASSERT (srelgot != NULL);
+
+ outrel.r_offset = (sgot->output_section->vma
+ + sgot->output_offset
+ + off);
+ outrel.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
+ outrel.r_addend = relocation;
+ loc = srelgot->contents;
+ loc += srelgot->reloc_count * sizeof(Elf32_External_Rela);
+ bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
+ ++srelgot->reloc_count;
+ }
+
+ local_got_offsets[r_symndx] |= 1;
+ }
+
+ relocation = sgot->output_offset + off;
+ }
+ if ((r_type == R_M32R_GOT16_HI_SLO)
+ && ((relocation + rel->r_addend) & 0x8000))
+ rel->r_addend += 0x10000;
+
+ break;
+
+ case R_M32R_26_PLTREL:
+ /* Relocation is to the entry for this symbol in the
+ procedure linkage table. */
+
+ /* The native assembler will generate a 26_PLTREL reloc
+ for a local symbol if you assemble a call from one
+ section to another when using -K pic. */
+ if (h == NULL)
+ break;
+
+ //if (ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
+ // || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN)
+ // break;
+ if (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL)
+ break;
+
+ if (h->plt.offset == (bfd_vma) -1)
+ {
+ /* We didn't make a PLT entry for this symbol. This
+ happens when statically linking PIC code, or when
+ using -Bsymbolic. */
+ break;
+ }
+
+ relocation = (splt->output_section->vma
+ + splt->output_offset
+ + h->plt.offset);
+ break;
+
+ case R_M32R_HI16_SLO_RELA:
+ {
+ if ((relocation + rel->r_addend) & 0x8000)
+ {
+ rel->r_addend += 0x10000;
+ }
+ }
+ /* Fall through. */
+ case R_M32R_16_RELA:
+ case R_M32R_24_RELA:
+ case R_M32R_32_RELA:
+ case R_M32R_18_PCREL_RELA:
+ case R_M32R_26_PCREL_RELA:
+ case R_M32R_HI16_ULO_RELA:
+ case R_M32R_LO16_RELA:
+ case R_M32R_SDA16_RELA:
+ if (info->shared
+ && r_symndx != 0
+ && (input_section->flags & SEC_ALLOC) != 0
+ && ((r_type != R_M32R_18_PCREL_RELA
+ && r_type != R_M32R_26_PCREL_RELA)
+ || (h != NULL
+ && h->dynindx != -1
+ && (! info->symbolic
+ || (h->elf_link_hash_flags
+ & ELF_LINK_HASH_DEF_REGULAR) == 0))))
+ {
+ Elf_Internal_Rela outrel;
+ bfd_boolean skip, relocate;
+ bfd_byte *loc;
+
+ /* 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_M32R_18_PCREL_RELA
+ || r_type == R_M32R_26_PCREL_RELA)
+ {
+ BFD_ASSERT (h != NULL && h->dynindx != -1);
+ outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
+ outrel.r_addend = rel->r_addend;
+ }
+ 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_M32R_RELATIVE);
+ outrel.r_addend = relocation + rel->r_addend;
+ }
+ else
+ {
+ BFD_ASSERT (h->dynindx != -1);
+ outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
+ outrel.r_addend = relocation + rel->r_addend;
+ }
+ }
+
+ loc = sreloc->contents;
+ loc += sreloc->reloc_count * sizeof(Elf32_External_Rela);
+ bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
+ ++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;
+ }
+ break;
+
case (int) R_M32R_10_PCREL :
r = m32r_elf_do_10_pcrel_reloc (input_bfd, howto, input_section,
contents, offset,
sec, relocation, addend);
- break;
+ goto check_reloc;
case (int) R_M32R_HI16_SLO :
case (int) R_M32R_HI16_ULO :
contents, offset,
relocation, addend);
}
- break;
+
+ goto check_reloc;
case (int) R_M32R_SDA16 :
{
continue;
}
}
- /* fall through */
+ /* fall through */
+
+ default : /* OLD_M32R_RELOC */
- default :
r = _bfd_final_link_relocate (howto, input_bfd, input_section,
contents, offset,
relocation, addend);
- break;
+ goto check_reloc;
}
+
+ r = _bfd_final_link_relocate (howto, input_bfd, input_section,
+ contents, rel->r_offset,
+ relocation, rel->r_addend);
+
}
check_reloc:
return ret;
}
+
+/* Finish up dynamic symbol handling. We set the contents of various
+ dynamic sections here. */
+static bfd_boolean
+m32r_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;
+{
+ struct elf_m32r_link_hash_table *htab;
+ bfd *dynobj;
+ bfd_byte *loc;
+
+#ifdef DEBUG_PIC
+printf("m32r_elf_finish_dynamic_symbol()\n");
+#endif
+
+ htab = m32r_elf_hash_table (info);
+ dynobj = htab->root.dynobj;
+
+ if (h->plt.offset != (bfd_vma) -1)
+ {
+ asection *splt;
+ asection *sgot;
+ asection *srela;
+
+ bfd_vma plt_index;
+ bfd_vma got_offset;
+ Elf_Internal_Rela rela;
+
+ /* This symbol has an entry in the procedure linkage table. Set
+ it up. */
+
+ BFD_ASSERT (h->dynindx != -1);
+
+ splt = htab->splt;
+ sgot = htab->sgotplt;
+ srela = htab->srelplt;
+ BFD_ASSERT (splt != NULL && sgot != NULL && srela != 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 / PLT_ENTRY_SIZE - 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;
+
+ /* Fill in the entry in the procedure linkage table. */
+ if (! info->shared)
+ {
+ bfd_put_32 (output_bfd,
+ (PLT_ENTRY_WORD0b
+ + (((sgot->output_section->vma
+ + sgot->output_offset
+ + got_offset) >> 16) & 0xffff)),
+ splt->contents + h->plt.offset);
+ bfd_put_32 (output_bfd,
+ (PLT_ENTRY_WORD1b
+ + ((sgot->output_section->vma
+ + sgot->output_offset
+ + got_offset) & 0xffff)),
+ splt->contents + h->plt.offset + 4);
+ bfd_put_32 (output_bfd, PLT_ENTRY_WORD2,
+ splt->contents + h->plt.offset + 8);
+ bfd_put_32 (output_bfd,
+ (PLT_ENTRY_WORD3
+ + plt_index * sizeof (Elf32_External_Rela)),
+ splt->contents + h->plt.offset + 12);
+ bfd_put_32 (output_bfd,
+ (PLT_ENTRY_WORD4
+ + (((unsigned int) ((- (h->plt.offset + 16)) >> 2)) & 0xffffff)),
+ splt->contents + h->plt.offset + 16);
+ }
+ else
+ {
+ bfd_put_32 (output_bfd,
+ PLT_ENTRY_WORD0 + got_offset,
+ splt->contents + h->plt.offset);
+ bfd_put_32 (output_bfd, PLT_ENTRY_WORD1,
+ splt->contents + h->plt.offset + 4);
+ bfd_put_32 (output_bfd, PLT_ENTRY_WORD2,
+ splt->contents + h->plt.offset + 8);
+ bfd_put_32 (output_bfd,
+ (PLT_ENTRY_WORD3
+ + plt_index * sizeof (Elf32_External_Rela)),
+ splt->contents + h->plt.offset + 12);
+ bfd_put_32 (output_bfd,
+ (PLT_ENTRY_WORD4
+ + (((unsigned int) ((- (h->plt.offset + 16)) >> 2)) & 0xffffff)),
+ splt->contents + h->plt.offset + 16);
+ }
+
+ /* Fill in the entry in the global offset table. */
+ bfd_put_32 (output_bfd,
+ (splt->output_section->vma
+ + splt->output_offset
+ + h->plt.offset
+ + 12), /* same offset */
+ sgot->contents + got_offset);
+
+ /* Fill in the entry in the .rela.plt section. */
+ rela.r_offset = (sgot->output_section->vma
+ + sgot->output_offset
+ + got_offset);
+ rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_JMP_SLOT);
+ rela.r_addend = 0;
+ loc = srela->contents;
+ loc += plt_index * sizeof(Elf32_External_Rela);
+ bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
+
+ 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 *srela;
+ Elf_Internal_Rela rela;
+
+ /* This symbol has an entry in the global offset table. Set it
+ up. */
+
+ sgot = htab->sgot;
+ srela = htab->srelgot;
+ BFD_ASSERT (sgot != NULL && srela != NULL);
+
+ rela.r_offset = (sgot->output_section->vma
+ + sgot->output_offset
+ + (h->got.offset &~ 1));
+
+ /* If this is a -Bsymbolic link, and the symbol is defined
+ locally, we just want to emit a RELATIVE reloc. Likewise if
+ the symbol was forced to be local because of a version file.
+ The entry in the global offset table will already have been
+ initialized in the relocate_section function. */
+ if (info->shared
+ && (info->symbolic
+ || h->dynindx == -1
+ || (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL))
+ && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR))
+ {
+ rela.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
+ rela.r_addend = (h->root.u.def.value
+ + h->root.u.def.section->output_section->vma
+ + h->root.u.def.section->output_offset);
+ }
+ else
+ {
+ BFD_ASSERT((h->got.offset & 1) == 0);
+ bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
+ rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_GLOB_DAT);
+ rela.r_addend = 0;
+ }
+
+ loc = srela->contents;
+ loc += srela->reloc_count * sizeof(Elf32_External_Rela);
+ bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
+ ++srela->reloc_count;
+ }
+
+ if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0)
+ {
+ asection *s;
+ Elf_Internal_Rela rela;
+
+ /* This symbols 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);
+
+ rela.r_offset = (h->root.u.def.value
+ + h->root.u.def.section->output_section->vma
+ + h->root.u.def.section->output_offset);
+ rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_COPY);
+ rela.r_addend = 0;
+ loc = s->contents;
+ loc += s->reloc_count * sizeof(Elf32_External_Rela);
+ bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
+ ++s->reloc_count;
+ }
+
+ /* Mark some specially defined symbols 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 bfd_boolean
+m32r_elf_finish_dynamic_sections (output_bfd, info)
+ bfd *output_bfd;
+ struct bfd_link_info *info;
+{
+ struct elf_m32r_link_hash_table *htab;
+ bfd *dynobj;
+ asection *sdyn;
+ asection *sgot;
+
+#ifdef DEBUG_PIC
+printf("m32r_elf_finish_dynamic_sections()\n");
+#endif
+
+ htab = m32r_elf_hash_table (info);
+ dynobj = htab->root.dynobj;
+
+ sgot = htab->sgotplt;
+ sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
+
+ if (htab->root.dynamic_sections_created)
+ {
+ asection *splt;
+ Elf32_External_Dyn *dyncon, *dynconend;
+
+ BFD_ASSERT (sgot != NULL && 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";
+ s = htab->sgot->output_section;
+ goto get_vma;
+ case DT_JMPREL:
+ name = ".rela.plt";
+ s = htab->srelplt->output_section;
+ get_vma:
+ 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 = htab->srelplt->output_section;
+ 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. */
+ if (htab->srelplt != NULL)
+ {
+ s = htab->srelplt->output_section;
+ 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 = htab->splt;
+ if (splt && splt->_raw_size > 0)
+ {
+ if (info->shared)
+ {
+ bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD0, splt->contents);
+ bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD1, splt->contents + 4);
+ bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD2, splt->contents + 8);
+ bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD3, splt->contents + 12);
+ bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD4, splt->contents + 16);
+ }
+ else
+ {
+ unsigned long addr;
+ /* addr = .got + 4 */
+ addr = sgot->output_section->vma + sgot->output_offset + 4;
+ bfd_put_32 (output_bfd,
+ PLT0_ENTRY_WORD0 | ((addr >> 16) & 0xffff),
+ splt->contents);
+ bfd_put_32 (output_bfd,
+ PLT0_ENTRY_WORD1 | (addr & 0xffff),
+ splt->contents + 4);
+ bfd_put_32 (output_bfd, PLT0_ENTRY_WORD2, splt->contents + 8);
+ bfd_put_32 (output_bfd, PLT0_ENTRY_WORD3, splt->contents + 12);
+ bfd_put_32 (output_bfd, PLT0_ENTRY_WORD4, splt->contents + 16);
+ }
+
+ elf_section_data (splt->output_section)->this_hdr.sh_entsize =
+ PLT_ENTRY_SIZE;
+ }
+ }
+
+ /* Fill in the first three entries in the global offset table. */
+ if (sgot && 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;
+}
+
\f
#if 0 /* relaxing not supported yet */
{
case R_M32R_GNU_VTINHERIT:
case R_M32R_GNU_VTENTRY:
+ case R_M32R_RELA_GNU_VTINHERIT:
+ case R_M32R_RELA_GNU_VTENTRY:
break;
default:
asection *sec ATTRIBUTE_UNUSED;
const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED;
{
- /* we don't use got and plt entries for m32r */
+ /* Update the got entry reference counts for the section being removed. */
+ Elf_Internal_Shdr *symtab_hdr;
+ struct elf_link_hash_entry **sym_hashes;
+ bfd_signed_vma *local_got_refcounts;
+ const Elf_Internal_Rela *rel, *relend;
+ unsigned long r_symndx;
+ struct elf_link_hash_entry *h;
+
+ elf_section_data (sec)->local_dynrel = NULL;
+
+ symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
+ sym_hashes = elf_sym_hashes (abfd);
+ local_got_refcounts = elf_local_got_refcounts (abfd);
+
+ relend = relocs + sec->reloc_count;
+ for (rel = relocs; rel < relend; rel++)
+ switch (ELF32_R_TYPE (rel->r_info))
+ {
+ case R_M32R_GOT16_HI_ULO:
+ case R_M32R_GOT16_HI_SLO:
+ case R_M32R_GOT16_LO:
+ case R_M32R_GOT24:
+ case R_M32R_GOTPC_HI_ULO:
+ case R_M32R_GOTPC_HI_SLO:
+ case R_M32R_GOTPC_LO:
+ case R_M32R_GOTPC24:
+ r_symndx = ELF32_R_SYM (rel->r_info);
+ if (r_symndx >= symtab_hdr->sh_info)
+ {
+ h = sym_hashes[r_symndx - symtab_hdr->sh_info];
+ if (h->got.refcount > 0)
+ h->got.refcount--;
+ }
+ else
+ {
+ if (local_got_refcounts && local_got_refcounts[r_symndx] > 0)
+ local_got_refcounts[r_symndx]--;
+ }
+ break;
+
+ case R_M32R_16_RELA:
+ case R_M32R_24_RELA:
+ case R_M32R_32_RELA:
+ case R_M32R_HI16_ULO_RELA:
+ case R_M32R_HI16_SLO_RELA:
+ case R_M32R_LO16_RELA:
+ case R_M32R_SDA16_RELA:
+ case R_M32R_18_PCREL_RELA:
+ case R_M32R_26_PCREL_RELA:
+ r_symndx = ELF32_R_SYM (rel->r_info);
+ if (r_symndx >= symtab_hdr->sh_info)
+ {
+ struct elf_m32r_link_hash_entry *eh;
+ struct elf_m32r_dyn_relocs **pp;
+ struct elf_m32r_dyn_relocs *p;
+
+ h = sym_hashes[r_symndx - symtab_hdr->sh_info];
+
+ if (!info->shared && h->plt.refcount > 0)
+ h->plt.refcount -= 1;
+
+ eh = (struct elf_m32r_link_hash_entry *) h;
+
+ for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
+ if (p->sec == sec)
+ {
+ if (ELF32_R_TYPE (rel->r_info) == R_M32R_26_PCREL_RELA
+ || ELF32_R_TYPE (rel->r_info) == R_M32R_26_PCREL_RELA)
+ p->pc_count -= 1;
+ p->count -= 1;
+ if (p->count == 0)
+ *pp = p->next;
+ break;
+ }
+ }
+ break;
+
+ case R_M32R_26_PLTREL:
+ r_symndx = ELF32_R_SYM (rel->r_info);
+ if (r_symndx >= symtab_hdr->sh_info)
+ {
+ h = sym_hashes[r_symndx - symtab_hdr->sh_info];
+ if (h->plt.refcount > 0)
+ h->plt.refcount--;
+ }
+ break;
+
+ default:
+ break;
+ }
+
return TRUE;
}
struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
const Elf_Internal_Rela *rel;
const Elf_Internal_Rela *rel_end;
+ struct elf_m32r_link_hash_table *htab;
+ bfd *dynobj;
+ bfd_vma *local_got_offsets;
+ asection *sgot, *srelgot, *sreloc;
if (info->relocatable)
return TRUE;
+ sgot = srelgot = sreloc = NULL;
+
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);
if (!elf_bad_symtab (abfd))
sym_hashes_end -= symtab_hdr->sh_info;
+ htab = m32r_elf_hash_table (info);
+ dynobj = htab->root.dynobj;
+ local_got_offsets = elf_local_got_offsets (abfd);
+
rel_end = relocs + sec->reloc_count;
for (rel = relocs; rel < rel_end; rel++)
{
+ int r_type;
struct elf_link_hash_entry *h;
unsigned long r_symndx;
r_symndx = ELF32_R_SYM (rel->r_info);
+ r_type = ELF32_R_TYPE (rel->r_info);
if (r_symndx < symtab_hdr->sh_info)
h = NULL;
else
h = sym_hashes[r_symndx - symtab_hdr->sh_info];
- switch (ELF32_R_TYPE (rel->r_info))
+ /* Some relocs require a global offset table. */
+ if (htab->sgot == NULL)
+ {
+ switch (r_type)
+ {
+ case R_M32R_GOT16_HI_ULO:
+ case R_M32R_GOT16_HI_SLO:
+ case R_M32R_GOT16_LO:
+ case R_M32R_GOTPC24:
+ case R_M32R_GOTPC_HI_ULO:
+ case R_M32R_GOTPC_HI_SLO:
+ case R_M32R_GOTPC_LO:
+ case R_M32R_GOT24:
+ if (dynobj == NULL)
+ htab->root.dynobj = dynobj = abfd;
+ if (! create_got_section (dynobj, info))
+ return FALSE;
+ break;
+
+ default:
+ break;
+ }
+ }
+
+ switch (r_type)
{
+ case R_M32R_GOT16_HI_ULO:
+ case R_M32R_GOT16_HI_SLO:
+ case R_M32R_GOT16_LO:
+ case R_M32R_GOT24:
+
+ if (h != NULL)
+ h->got.refcount += 1;
+ else
+ {
+ bfd_signed_vma *local_got_refcounts;
+
+ /* This is a global offset table entry for a local
+ symbol. */
+ local_got_refcounts = elf_local_got_refcounts (abfd);
+ if (local_got_refcounts == NULL)
+ {
+ bfd_size_type size;
+
+ size = symtab_hdr->sh_info;
+ size *= sizeof (bfd_signed_vma);
+ local_got_refcounts = ((bfd_signed_vma *)
+ bfd_zalloc (abfd, size));
+ if (local_got_refcounts == NULL)
+ return FALSE;
+ elf_local_got_refcounts (abfd) = local_got_refcounts;
+ }
+ local_got_refcounts[r_symndx] += 1;
+ }
+ break;
+
+ case R_M32R_26_PLTREL:
+ /* This symbol requires a procedure linkage table entry. We
+ actually build the entry in adjust_dynamic_symbol,
+ because this might be a case of linking PIC code without
+ linking in any dynamic objects, in which case we don't
+ need to generate a procedure linkage table after all. */
+
+ /* If this is a local symbol, we resolve it directly without
+ creating a procedure linkage table entry. */
+ if (h == NULL)
+ continue;
+
+ if (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL)
+ break;
+
+ h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
+ h->plt.refcount += 1;
+ break;
+
+ case R_M32R_16_RELA:
+ case R_M32R_24_RELA:
+ case R_M32R_32_RELA:
+ case R_M32R_HI16_ULO_RELA:
+ case R_M32R_HI16_SLO_RELA:
+ case R_M32R_LO16_RELA:
+ case R_M32R_SDA16_RELA:
+ case R_M32R_18_PCREL_RELA:
+ case R_M32R_26_PCREL_RELA:
+
+ if (h != NULL && !info->shared)
+ {
+ h->elf_link_hash_flags |= ELF_LINK_NON_GOT_REF;
+ h->plt.refcount += 1;
+ }
+
+ /* 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
+ dyn_relocs field of the hash table entry. A similar
+ situation occurs when creating shared libraries and symbol
+ visibility changes render the symbol local.
+
+ If on the other hand, we are creating an executable, we
+ may need to keep relocations for symbols satisfied by a
+ dynamic library if we manage to avoid copy relocs for the
+ symbol. */
+ if ((info->shared
+ && (sec->flags & SEC_ALLOC) != 0
+ && ((r_type != R_M32R_26_PCREL_RELA
+ && r_type != R_M32R_18_PCREL_RELA)
+ || (h != NULL
+ && (! info->symbolic
+ || h->root.type == bfd_link_hash_defweak
+ || (h->elf_link_hash_flags
+ & ELF_LINK_HASH_DEF_REGULAR) == 0))))
+ || (!info->shared
+ && (sec->flags & SEC_ALLOC) != 0
+ && h != NULL
+ && (h->root.type == bfd_link_hash_defweak
+ || (h->elf_link_hash_flags
+ & ELF_LINK_HASH_DEF_REGULAR) == 0)))
+ {
+ struct elf_m32r_dyn_relocs *p;
+ struct elf_m32r_dyn_relocs **head;
+
+ if (dynobj == NULL)
+ htab->root.dynobj = dynobj = abfd;
+
+ /* When creating a shared object, we must copy these
+ relocs into the output file. We create a reloc
+ section in dynobj and make room for the 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;
+ }
+ elf_section_data (sec)->sreloc = sreloc;
+ }
+
+ /* If this is a global symbol, we count the number of
+ relocations we need for this symbol. */
+ if (h != NULL)
+ head = &((struct elf_m32r_link_hash_entry *) h)->dyn_relocs;
+ else
+ {
+ asection *s;
+
+ /* Track dynamic relocs needed for local syms too. */
+ s = bfd_section_from_r_symndx (abfd, &htab->sym_sec,
+ sec, r_symndx);
+ if (s == NULL)
+ return FALSE;
+
+ head = ((struct elf_m32r_dyn_relocs **)
+ &elf_section_data (s)->local_dynrel);
+ }
+
+ p = *head;
+ if (p == NULL || p->sec != sec)
+ {
+ bfd_size_type amt = sizeof (*p);
+ p = ((struct elf_m32r_dyn_relocs *) bfd_alloc (dynobj, amt));
+ if (p == NULL)
+ return FALSE;
+ p->next = *head;
+ *head = p;
+ p->sec = sec;
+ p->count = 0;
+ p->pc_count = 0;
+ }
+
+ p->count += 1;
+ if (ELF32_R_TYPE (rel->r_info) == R_M32R_26_PCREL_RELA
+ || ELF32_R_TYPE (rel->r_info) == R_M32R_18_PCREL_RELA)
+ p->pc_count += 1;
+ }
+ break;
+
/* This relocation describes the C++ object vtable hierarchy.
Reconstruct it for later use during GC. */
+ case R_M32R_RELA_GNU_VTINHERIT:
case R_M32R_GNU_VTINHERIT:
if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
return FALSE;
if (!_bfd_elf32_gc_record_vtentry (abfd, sec, h, rel->r_offset))
return FALSE;
break;
+ case R_M32R_RELA_GNU_VTENTRY:
+ if (!_bfd_elf32_gc_record_vtentry (abfd, sec, h, rel->r_addend))
+ return FALSE;
+ break;
}
}
{ ".sbss", 5, -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
{ NULL, 0, 0, 0, 0 }
};
+
+static bfd_boolean
+m32r_elf_fake_sections (abfd, hdr, sec)
+ bfd *abfd;
+ Elf_Internal_Shdr *hdr ATTRIBUTE_UNUSED;
+ asection *sec;
+{
+ register const char *name;
+
+ name = bfd_get_section_name (abfd, sec);
+
+ /* The generic elf_fake_sections will set up REL_HDR using the
+ default kind of relocations. But, we may actually need both
+ kinds of relocations, so we set up the second header here.
+
+ This is not necessary for the O32 ABI since that only uses Elf32_Rel
+ relocations (cf. System V ABI, MIPS RISC Processor Supplement,
+ 3rd Edition, p. 4-17). It breaks the IRIX 5/6 32-bit ld, since one
+ of the resulting empty .rela.<section> sections starts with
+ sh_offset == object size, and ld doesn't allow that. While the check
+ is arguably bogus for empty or SHT_NOBITS sections, it can easily be
+ avoided by not emitting those useless sections in the first place. */
+ if ((sec->flags & SEC_RELOC) != 0)
+ {
+ struct bfd_elf_section_data *esd;
+ bfd_size_type amt = sizeof (Elf_Internal_Shdr);
+
+ esd = elf_section_data (sec);
+ BFD_ASSERT (esd->rel_hdr2 == NULL);
+ esd->rel_hdr2 = (Elf_Internal_Shdr *) bfd_zalloc (abfd, amt);
+ if (!esd->rel_hdr2)
+ return FALSE;
+ _bfd_elf_init_reloc_shdr (abfd, esd->rel_hdr2, sec,
+ !sec->use_rela_p);
+ }
+
+ return TRUE;
+}
+
+static enum elf_reloc_type_class
+m32r_elf_reloc_type_class (rela)
+ const Elf_Internal_Rela *rela;
+{
+ switch ((int) ELF32_R_TYPE (rela->r_info))
+ {
+ case R_M32R_RELATIVE:
+ return reloc_class_relative;
+ case R_M32R_JMP_SLOT:
+ return reloc_class_plt;
+ case R_M32R_COPY:
+ return reloc_class_copy;
+ default:
+ return reloc_class_normal;
+ }
+}
\f
#define ELF_ARCH bfd_arch_m32r
#define ELF_MACHINE_CODE EM_M32R
#define TARGET_BIG_SYM bfd_elf32_m32r_vec
#define TARGET_BIG_NAME "elf32-m32r"
+#define TARGET_LITTLE_SYM bfd_elf32_m32rle_vec
+#define TARGET_LITTLE_NAME "elf32-m32rle"
-#define elf_info_to_howto 0
+#define elf_info_to_howto m32r_info_to_howto
#define elf_info_to_howto_rel m32r_info_to_howto_rel
#define elf_backend_section_from_bfd_section _bfd_m32r_elf_section_from_bfd_section
#define elf_backend_symbol_processing _bfd_m32r_elf_symbol_processing
#define elf_backend_gc_sweep_hook m32r_elf_gc_sweep_hook
#define elf_backend_check_relocs m32r_elf_check_relocs
+#define elf_backend_create_dynamic_sections m32r_elf_create_dynamic_sections
+#define bfd_elf32_bfd_link_hash_table_create m32r_elf_link_hash_table_create
+#define elf_backend_size_dynamic_sections m32r_elf_size_dynamic_sections
+#define elf_backend_finish_dynamic_sections m32r_elf_finish_dynamic_sections
+#define elf_backend_adjust_dynamic_symbol m32r_elf_adjust_dynamic_symbol
+#define elf_backend_finish_dynamic_symbol m32r_elf_finish_dynamic_symbol
+#define elf_backend_reloc_type_class m32r_elf_reloc_type_class
+#define elf_backend_copy_indirect_symbol m32r_elf_copy_indirect_symbol
+
#define elf_backend_can_gc_sections 1
-#if !USE_REL
+/*#if !USE_REL
#define elf_backend_rela_normal 1
+#endif*/
+#define elf_backend_can_refcount 1
+#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_may_use_rel_p 1
+#ifdef USE_M32R_OLD_RELOC
+#define elf_backend_default_use_rela_p 0
+#define elf_backend_may_use_rela_p 0
+#else
+#define elf_backend_default_use_rela_p 1
+#define elf_backend_may_use_rela_p 1
+#define elf_backend_fake_sections m32r_elf_fake_sections
#endif
+
#if 0 /* not yet */
/* relax support */
#define bfd_elf32_bfd_relax_section m32r_elf_relax_section
#define elf_backend_special_sections m32r_elf_special_sections
#include "elf32-target.h"
+
+#undef ELF_MAXPAGESIZE
+#define ELF_MAXPAGESIZE 0x1000
+
+#undef TARGET_BIG_SYM
+#define TARGET_BIG_SYM bfd_elf32_m32rlin_vec
+#undef TARGET_BIG_NAME
+#define TARGET_BIG_NAME "elf32-m32r-linux"
+#undef TARGET_LITTLE_SYM
+#define TARGET_LITTLE_SYM bfd_elf32_m32rlelin_vec
+#undef TARGET_LITTLE_NAME
+#define TARGET_LITTLE_NAME "elf32-m32rle-linux"
+#undef elf32_bed
+#define elf32_bed elf32_m32r_lin_bed
+
+#include "elf32-target.h"
+
--- /dev/null
+/* m32r exception, interrupt, and trap (EIT) support
+ Copyright (C) 1998, 2003 Free Software Foundation, Inc.
+ Contributed by Renesas.
+
+ This file is part of GDB, the GNU debugger.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation, Inc.,
+ 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+
+#include "sim-main.h"
+#include "syscall.h"
+#include "targ-vals.h"
+#include <dirent.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <time.h>
+#include <unistd.h>
+#include <utime.h>
+#include <sys/mman.h>
+#include <sys/poll.h>
+#include <sys/resource.h>
+#include <sys/sysinfo.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/timeb.h>
+#include <sys/timex.h>
+#include <sys/types.h>
+#include <sys/uio.h>
+#include <sys/utsname.h>
+#include <sys/vfs.h>
+#include <linux/module.h>
+#include <linux/sysctl.h>
+#include <linux/types.h>
+#include <linux/unistd.h>
+
+#define TRAP_ELF_SYSCALL 0
+#define TRAP_LINUX_SYSCALL 2
+#define TRAP_FLUSH_CACHE 12
+
+/* The semantic code invokes this for invalid (unrecognized) instructions. */
+
+SEM_PC
+sim_engine_invalid_insn (SIM_CPU *current_cpu, IADDR cia, SEM_PC vpc)
+{
+ SIM_DESC sd = CPU_STATE (current_cpu);
+
+#if 0
+ if (STATE_ENVIRONMENT (sd) == OPERATING_ENVIRONMENT)
+ {
+ h_bsm_set (current_cpu, h_sm_get (current_cpu));
+ h_bie_set (current_cpu, h_ie_get (current_cpu));
+ h_bcond_set (current_cpu, h_cond_get (current_cpu));
+ /* sm not changed */
+ h_ie_set (current_cpu, 0);
+ h_cond_set (current_cpu, 0);
+
+ h_bpc_set (current_cpu, cia);
+
+ sim_engine_restart (CPU_STATE (current_cpu), current_cpu, NULL,
+ EIT_RSVD_INSN_ADDR);
+ }
+ else
+#endif
+ sim_engine_halt (sd, current_cpu, NULL, cia, sim_stopped, SIM_SIGILL);
+ return vpc;
+}
+
+/* Process an address exception. */
+
+void
+m32r_core_signal (SIM_DESC sd, SIM_CPU *current_cpu, sim_cia cia,
+ unsigned int map, int nr_bytes, address_word addr,
+ transfer_type transfer, sim_core_signals sig)
+{
+ if (STATE_ENVIRONMENT (sd) == OPERATING_ENVIRONMENT)
+ {
+ m32rbf_h_cr_set (current_cpu, H_CR_BBPC,
+ m32rbf_h_cr_get (current_cpu, H_CR_BPC));
+ if (MACH_NUM (CPU_MACH (current_cpu)) == MACH_M32R)
+ {
+ m32rbf_h_bpsw_set (current_cpu, m32rbf_h_psw_get (current_cpu));
+ /* sm not changed */
+ m32rbf_h_psw_set (current_cpu, m32rbf_h_psw_get (current_cpu) & 0x80);
+ }
+ else if (MACH_NUM (CPU_MACH (current_cpu)) == MACH_M32RX)
+ {
+ m32rxf_h_bpsw_set (current_cpu, m32rxf_h_psw_get (current_cpu));
+ /* sm not changed */
+ m32rxf_h_psw_set (current_cpu, m32rxf_h_psw_get (current_cpu) & 0x80);
+ }
+ else
+ {
+ m32r2f_h_bpsw_set (current_cpu, m32r2f_h_psw_get (current_cpu));
+ /* sm not changed */
+ m32r2f_h_psw_set (current_cpu, m32r2f_h_psw_get (current_cpu) & 0x80);
+ }
+ m32rbf_h_cr_set (current_cpu, H_CR_BPC, cia);
+
+ sim_engine_restart (CPU_STATE (current_cpu), current_cpu, NULL,
+ EIT_ADDR_EXCP_ADDR);
+ }
+ else
+ sim_core_signal (sd, current_cpu, cia, map, nr_bytes, addr,
+ transfer, sig);
+}
+\f
+/* Read/write functions for system call interface. */
+
+static int
+syscall_read_mem (host_callback *cb, struct cb_syscall *sc,
+ unsigned long taddr, char *buf, int bytes)
+{
+ SIM_DESC sd = (SIM_DESC) sc->p1;
+ SIM_CPU *cpu = (SIM_CPU *) sc->p2;
+
+ return sim_core_read_buffer (sd, cpu, read_map, buf, taddr, bytes);
+}
+
+static int
+syscall_write_mem (host_callback *cb, struct cb_syscall *sc,
+ unsigned long taddr, const char *buf, int bytes)
+{
+ SIM_DESC sd = (SIM_DESC) sc->p1;
+ SIM_CPU *cpu = (SIM_CPU *) sc->p2;
+
+ return sim_core_write_buffer (sd, cpu, write_map, buf, taddr, bytes);
+}
+
+/* Translate target's address to host's address. */
+
+static void *
+t2h_addr (host_callback *cb, struct cb_syscall *sc,
+ unsigned long taddr)
+{
+ extern sim_core_trans_addr (SIM_DESC, sim_cpu *, unsigned, address_word);
+ void *addr;
+ SIM_DESC sd = (SIM_DESC) sc->p1;
+ SIM_CPU *cpu = (SIM_CPU *) sc->p2;
+
+ if (taddr == 0)
+ return NULL;
+
+ return sim_core_trans_addr (sd, cpu, read_map, taddr);
+}
+
+static unsigned int
+conv_endian (unsigned int tvalue)
+{
+ unsigned int hvalue;
+ unsigned int t1, t2, t3, t4;
+
+ if (CURRENT_HOST_BYTE_ORDER == LITTLE_ENDIAN)
+ {
+ t1 = tvalue & 0xff000000;
+ t2 = tvalue & 0x00ff0000;
+ t3 = tvalue & 0x0000ff00;
+ t4 = tvalue & 0x000000ff;
+
+ hvalue = t1 >> 24;
+ hvalue += t2 >> 8;
+ hvalue += t3 << 8;
+ hvalue += t4 << 24;
+ }
+ else
+ hvalue = tvalue;
+
+ return hvalue;
+}
+
+static unsigned short
+conv_endian16 (unsigned short tvalue)
+{
+ unsigned short hvalue;
+ unsigned short t1, t2;
+
+ if (CURRENT_HOST_BYTE_ORDER == LITTLE_ENDIAN)
+ {
+ t1 = tvalue & 0xff00;
+ t2 = tvalue & 0x00ff;
+
+ hvalue = t1 >> 8;
+ hvalue += t2 << 8;
+ }
+ else
+ hvalue = tvalue;
+
+ return hvalue;
+}
+
+static void
+translate_endian(void *addr, size_t size)
+{
+ unsigned int *p = (unsigned int *) addr;
+ int i;
+
+ for (i = 0; i <= size - 4; i += 4,p++)
+ *p = conv_endian(*p);
+
+ if (i <= size - 2)
+ *((unsigned short *) p) = conv_endian16(*((unsigned short *) p));
+}
+
+/* Trap support.
+ The result is the pc address to continue at.
+ Preprocessing like saving the various registers has already been done. */
+
+USI
+m32r_trap (SIM_CPU *current_cpu, PCADDR pc, int num)
+{
+ SIM_DESC sd = CPU_STATE (current_cpu);
+ host_callback *cb = STATE_CALLBACK (sd);
+
+#ifdef SIM_HAVE_BREAKPOINTS
+ /* Check for breakpoints "owned" by the simulator first, regardless
+ of --environment. */
+ if (num == TRAP_BREAKPOINT)
+ {
+ /* First try sim-break.c. If it's a breakpoint the simulator "owns"
+ it doesn't return. Otherwise it returns and let's us try. */
+ sim_handle_breakpoint (sd, current_cpu, pc);
+ /* Fall through. */
+ }
+#endif
+
+ switch (num)
+ {
+ case TRAP_ELF_SYSCALL :
+ {
+ CB_SYSCALL s;
+
+ CB_SYSCALL_INIT (&s);
+ s.func = m32rbf_h_gr_get (current_cpu, 0);
+ s.arg1 = m32rbf_h_gr_get (current_cpu, 1);
+ s.arg2 = m32rbf_h_gr_get (current_cpu, 2);
+ s.arg3 = m32rbf_h_gr_get (current_cpu, 3);
+
+ if (s.func == TARGET_SYS_exit)
+ {
+ sim_engine_halt (sd, current_cpu, NULL, pc, sim_exited, s.arg1);
+ }
+
+ s.p1 = (PTR) sd;
+ s.p2 = (PTR) current_cpu;
+ s.read_mem = syscall_read_mem;
+ s.write_mem = syscall_write_mem;
+ cb_syscall (cb, &s);
+ m32rbf_h_gr_set (current_cpu, 2, s.errcode);
+ m32rbf_h_gr_set (current_cpu, 0, s.result);
+ m32rbf_h_gr_set (current_cpu, 1, s.result2);
+ break;
+ }
+
+ case TRAP_LINUX_SYSCALL :
+ {
+ CB_SYSCALL s;
+ unsigned int func, arg1, arg2, arg3, arg4, arg5, arg6, arg7;
+ int result, result2, errcode;
+
+ if (STATE_ENVIRONMENT (sd) == OPERATING_ENVIRONMENT)
+ {
+ /* The new pc is the trap vector entry.
+ We assume there's a branch there to some handler.
+ Use cr5 as EVB (EIT Vector Base) register. */
+ USI new_pc = m32rbf_h_cr_get (current_cpu, 5) + 0x40 + num * 4;
+ return new_pc;
+ }
+
+ func = m32rbf_h_gr_get (current_cpu, 7);
+ arg1 = m32rbf_h_gr_get (current_cpu, 0);
+ arg2 = m32rbf_h_gr_get (current_cpu, 1);
+ arg3 = m32rbf_h_gr_get (current_cpu, 2);
+ arg4 = m32rbf_h_gr_get (current_cpu, 3);
+ arg5 = m32rbf_h_gr_get (current_cpu, 4);
+ arg6 = m32rbf_h_gr_get (current_cpu, 5);
+ arg7 = m32rbf_h_gr_get (current_cpu, 6);
+
+ CB_SYSCALL_INIT (&s);
+ s.func = func;
+ s.arg1 = arg1;
+ s.arg2 = arg2;
+ s.arg3 = arg3;
+
+ s.p1 = (PTR) sd;
+ s.p2 = (PTR) current_cpu;
+ s.read_mem = syscall_read_mem;
+ s.write_mem = syscall_write_mem;
+
+ result = 0;
+ result2 = 0;
+ errcode = 0;
+
+ switch (func)
+ {
+ case __NR_exit:
+ sim_engine_halt (sd, current_cpu, NULL, pc, sim_exited, arg1);
+ break;
+
+ case __NR_read:
+ result = read(arg1, t2h_addr(cb, &s, arg2), arg3);
+ errcode = errno;
+ break;
+
+ case __NR_write:
+ result = write(arg1, t2h_addr(cb, &s, arg2), arg3);
+ errcode = errno;
+ break;
+
+ case __NR_open:
+ result = open((char *) t2h_addr(cb, &s, arg1), arg2, arg3);
+ errcode = errno;
+ break;
+
+ case __NR_close:
+ result = close(arg1);
+ errcode = errno;
+ break;
+
+ case __NR_creat:
+ result = creat((char *) t2h_addr(cb, &s, arg1), arg2);
+ errcode = errno;
+ break;
+
+ case __NR_link:
+ result = link((char *) t2h_addr(cb, &s, arg1),
+ (char *) t2h_addr(cb, &s, arg2));
+ errcode = errno;
+ break;
+
+ case __NR_unlink:
+ result = unlink((char *) t2h_addr(cb, &s, arg1));
+ errcode = errno;
+ break;
+
+ case __NR_chdir:
+ result = chdir((char *) t2h_addr(cb, &s, arg1));
+ errcode = errno;
+ break;
+
+ case __NR_time:
+ {
+ time_t t;
+
+ if (arg1 == 0)
+ {
+ result = (int) time(NULL);
+ errcode = errno;
+ }
+ else
+ {
+ result = (int) time(&t);
+ errcode = errno;
+
+ if (result != 0)
+ break;
+
+ translate_endian((void *) &t, sizeof(t));
+ if ((s.write_mem) (cb, &s, arg1, (char *) &t, sizeof(t)) != sizeof(t))
+ {
+ result = -1;
+ errcode = EINVAL;
+ }
+ }
+ }
+ break;
+
+ case __NR_mknod:
+ result = mknod((char *) t2h_addr(cb, &s, arg1),
+ (mode_t) arg2, (dev_t) arg3);
+ errcode = errno;
+ break;
+
+ case __NR_chmod:
+ result = chmod((char *) t2h_addr(cb, &s, arg1), (mode_t) arg2);
+ errcode = errno;
+ break;
+
+ case __NR_lchown:
+ result = lchown((char *) t2h_addr(cb, &s, arg1),
+ (uid_t) arg2, (gid_t) arg3);
+ errcode = errno;
+ break;
+
+ case __NR_lseek:
+ result = (int) lseek(arg1, (off_t) arg2, arg3);
+ errcode = errno;
+ break;
+
+ case __NR_getpid:
+ result = getpid();
+ errcode = errno;
+ break;
+
+ case __NR_getuid:
+ result = getuid();
+ errcode = errno;
+ break;
+
+ case __NR_utime:
+ {
+ struct utimbuf buf;
+
+ if (arg2 == 0)
+ {
+ result = utime((char *) t2h_addr(cb, &s, arg1), NULL);
+ errcode = errno;
+ }
+ else
+ {
+ buf = *((struct utimbuf *) t2h_addr(cb, &s, arg2));
+ translate_endian((void *) &buf, sizeof(buf));
+ result = utime((char *) t2h_addr(cb, &s, arg1), &buf);
+ errcode = errno;
+ }
+ }
+ break;
+
+ case __NR_access:
+ result = access((char *) t2h_addr(cb, &s, arg1), arg2);
+ errcode = errno;
+ break;
+
+ case __NR_ftime:
+ {
+ struct timeb t;
+
+ result = ftime(&t);
+ errcode = errno;
+
+ if (result != 0)
+ break;
+
+ t.time = conv_endian(t.time);
+ t.millitm = conv_endian16(t.millitm);
+ t.timezone = conv_endian16(t.timezone);
+ t.dstflag = conv_endian16(t.dstflag);
+ if ((s.write_mem) (cb, &s, arg1, (char *) &t, sizeof(t))
+ != sizeof(t))
+ {
+ result = -1;
+ errcode = EINVAL;
+ }
+ }
+
+ case __NR_sync:
+ sync();
+ result = 0;
+ break;
+
+ case __NR_rename:
+ result = rename((char *) t2h_addr(cb, &s, arg1),
+ (char *) t2h_addr(cb, &s, arg2));
+ errcode = errno;
+ break;
+
+ case __NR_mkdir:
+ result = mkdir((char *) t2h_addr(cb, &s, arg1), arg2);
+ errcode = errno;
+ break;
+
+ case __NR_rmdir:
+ result = rmdir((char *) t2h_addr(cb, &s, arg1));
+ errcode = errno;
+ break;
+
+ case __NR_dup:
+ result = dup(arg1);
+ errcode = errno;
+ break;
+
+ case __NR_brk:
+ result = brk((void *) arg1);
+ errcode = errno;
+ //result = arg1;
+ break;
+
+ case __NR_getgid:
+ result = getgid();
+ errcode = errno;
+ break;
+
+ case __NR_geteuid:
+ result = geteuid();
+ errcode = errno;
+ break;
+
+ case __NR_getegid:
+ result = getegid();
+ errcode = errno;
+ break;
+
+ case __NR_ioctl:
+ result = ioctl(arg1, arg2, arg3);
+ errcode = errno;
+ break;
+
+ case __NR_fcntl:
+ result = fcntl(arg1, arg2, arg3);
+ errcode = errno;
+ break;
+
+ case __NR_ustat:
+ {
+ struct ustat ubuf;
+
+ result = ustat(arg1, &ubuf);
+ errcode = errno;
+
+ if (result != 0)
+ break;
+
+ ubuf.f_tfree = conv_endian(ubuf.f_tfree);
+ ubuf.f_tinode = conv_endian(ubuf.f_tinode);
+ if ((s.write_mem) (cb, &s, arg2, (char *) &ubuf, sizeof(ubuf))
+ != sizeof(ubuf))
+ {
+ result = -1;
+ errcode = EINVAL;
+ }
+ }
+ break;
+
+ case __NR_dup2:
+ result = dup2(arg1, arg2);
+ errcode = errno;
+ break;
+
+ case __NR_getppid:
+ result = getppid();
+ errcode = errno;
+ break;
+
+ case __NR_getpgrp:
+ result = getpgrp();
+ errcode = errno;
+ break;
+
+ case __NR_getrlimit:
+ {
+ struct rlimit rlim;
+
+ result = getrlimit(arg1, &rlim);
+ errcode = errno;
+
+ if (result != 0)
+ break;
+
+ translate_endian((void *) &rlim, sizeof(rlim));
+ if ((s.write_mem) (cb, &s, arg2, (char *) &rlim, sizeof(rlim))
+ != sizeof(rlim))
+ {
+ result = -1;
+ errcode = EINVAL;
+ }
+ }
+ break;
+
+ case __NR_getrusage:
+ {
+ struct rusage usage;
+
+ result = getrusage(arg1, &usage);
+ errcode = errno;
+
+ if (result != 0)
+ break;
+
+ translate_endian((void *) &usage, sizeof(usage));
+ if ((s.write_mem) (cb, &s, arg2, (char *) &usage, sizeof(usage))
+ != sizeof(usage))
+ {
+ result = -1;
+ errcode = EINVAL;
+ }
+ }
+ break;
+
+ case __NR_gettimeofday:
+ {
+ struct timeval tv;
+ struct timezone tz;
+
+ result = gettimeofday(&tv, &tz);
+ errcode = errno;
+
+ if (result != 0)
+ break;
+
+ translate_endian((void *) &tv, sizeof(tv));
+ if ((s.write_mem) (cb, &s, arg1, (char *) &tv, sizeof(tv))
+ != sizeof(tv))
+ {
+ result = -1;
+ errcode = EINVAL;
+ }
+
+ translate_endian((void *) &tz, sizeof(tz));
+ if ((s.write_mem) (cb, &s, arg2, (char *) &tz, sizeof(tz))
+ != sizeof(tz))
+ {
+ result = -1;
+ errcode = EINVAL;
+ }
+ }
+ break;
+
+ case __NR_getgroups:
+ {
+ gid_t *list;
+
+ if (arg1 > 0)
+ list = (gid_t *) malloc(arg1 * sizeof(gid_t));
+
+ result = getgroups(arg1, list);
+ errcode = errno;
+
+ if (result != 0)
+ break;
+
+ translate_endian((void *) list, arg1 * sizeof(gid_t));
+ if (arg1 > 0)
+ if ((s.write_mem) (cb, &s, arg2, (char *) list, arg1 * sizeof(gid_t))
+ != arg1 * sizeof(gid_t))
+ {
+ result = -1;
+ errcode = EINVAL;
+ }
+ }
+ break;
+
+ case __NR_select:
+ {
+ int n;
+ fd_set readfds;
+ fd_set *treadfdsp;
+ fd_set *hreadfdsp;
+ fd_set writefds;
+ fd_set *twritefdsp;
+ fd_set *hwritefdsp;
+ fd_set exceptfds;
+ fd_set *texceptfdsp;
+ fd_set *hexceptfdsp;
+ struct timeval *ttimeoutp;
+ struct timeval timeout;
+
+ n = arg1;
+
+ treadfdsp = (fd_set *) arg2;
+ if (treadfdsp != NULL)
+ {
+ readfds = *((fd_set *) t2h_addr(cb, &s, (unsigned int) treadfdsp));
+ translate_endian((void *) &readfds, sizeof(readfds));
+ hreadfdsp = &readfds;
+ }
+ else
+ hreadfdsp = NULL;
+
+ twritefdsp = (fd_set *) arg3;
+ if (twritefdsp != NULL)
+ {
+ writefds = *((fd_set *) t2h_addr(cb, &s, (unsigned int) twritefdsp));
+ translate_endian((void *) &writefds, sizeof(writefds));
+ hwritefdsp = &writefds;
+ }
+ else
+ hwritefdsp = NULL;
+
+ texceptfdsp = (fd_set *) arg4;
+ if (texceptfdsp != NULL)
+ {
+ exceptfds = *((fd_set *) t2h_addr(cb, &s, (unsigned int) texceptfdsp));
+ translate_endian((void *) &exceptfds, sizeof(exceptfds));
+ hexceptfdsp = &exceptfds;
+ }
+ else
+ hexceptfdsp = NULL;
+
+ ttimeoutp = (struct timeval *) arg5;
+ timeout = *((struct timeval *) t2h_addr(cb, &s, (unsigned int) ttimeoutp));
+ translate_endian((void *) &timeout, sizeof(timeout));
+
+ result = select(n, hreadfdsp, hwritefdsp, hexceptfdsp, &timeout);
+ errcode = errno;
+
+ if (result != 0)
+ break;
+
+ if (treadfdsp != NULL)
+ {
+ translate_endian((void *) &readfds, sizeof(readfds));
+ if ((s.write_mem) (cb, &s, (unsigned long) treadfdsp,
+ (char *) &readfds, sizeof(readfds)) != sizeof(readfds))
+ {
+ result = -1;
+ errcode = EINVAL;
+ }
+ }
+
+ if (twritefdsp != NULL)
+ {
+ translate_endian((void *) &writefds, sizeof(writefds));
+ if ((s.write_mem) (cb, &s, (unsigned long) twritefdsp,
+ (char *) &writefds, sizeof(writefds)) != sizeof(writefds))
+ {
+ result = -1;
+ errcode = EINVAL;
+ }
+ }
+
+ if (texceptfdsp != NULL)
+ {
+ translate_endian((void *) &exceptfds, sizeof(exceptfds));
+ if ((s.write_mem) (cb, &s, (unsigned long) texceptfdsp,
+ (char *) &exceptfds, sizeof(exceptfds)) != sizeof(exceptfds))
+ {
+ result = -1;
+ errcode = EINVAL;
+ }
+ }
+
+ translate_endian((void *) &timeout, sizeof(timeout));
+ if ((s.write_mem) (cb, &s, (unsigned long) ttimeoutp,
+ (char *) &timeout, sizeof(timeout)) != sizeof(timeout))
+ {
+ result = -1;
+ errcode = EINVAL;
+ }
+ }
+ break;
+
+ case __NR_symlink:
+ result = symlink((char *) t2h_addr(cb, &s, arg1),
+ (char *) t2h_addr(cb, &s, arg2));
+ errcode = errno;
+ break;
+
+ case __NR_readlink:
+ result = readlink((char *) t2h_addr(cb, &s, arg1),
+ (char *) t2h_addr(cb, &s, arg2),
+ arg3);
+ errcode = errno;
+ break;
+
+ case __NR_readdir:
+ result = (int) readdir((DIR *) t2h_addr(cb, &s, arg1));
+ errcode = errno;
+ break;
+
+#if 0
+ case __NR_mmap:
+ {
+ result = (int) mmap((void *) t2h_addr(cb, &s, arg1),
+ arg2, arg3, arg4, arg5, arg6);
+ errcode = errno;
+
+ if (errno == 0)
+ {
+ sim_core_attach (sd, NULL,
+ 0, access_read_write_exec, 0,
+ result, arg2, 0, NULL, NULL);
+ }
+ }
+ break;
+#endif
+ case __NR_mmap:
+ {
+ void *addr;
+ size_t len;
+ int prot, flags, fildes;
+ off_t off;
+
+ addr = *((void **) t2h_addr(cb, &s, arg1));
+ len = *((size_t *) t2h_addr(cb, &s, arg1 + 4));
+ prot = *((int *) t2h_addr(cb, &s, arg1 + 8));
+ flags = *((int *) t2h_addr(cb, &s, arg1 + 12));
+ fildes = *((int *) t2h_addr(cb, &s, arg1 + 16));
+ off = *((off_t *) t2h_addr(cb, &s, arg1 + 20));
+
+ addr = (void *) conv_endian((unsigned int) addr);
+ len = conv_endian(len);
+ prot = conv_endian(prot);
+ flags = conv_endian(flags);
+ fildes = conv_endian(fildes);
+ off = conv_endian(off);
+
+ //addr = (void *) t2h_addr(cb, &s, (unsigned int) addr);
+ result = (int) mmap(addr, len, prot, flags, fildes, off);
+ errcode = errno;
+
+ //if (errno == 0)
+ if (result != -1)
+ {
+ char c;
+ if (sim_core_read_buffer (sd, NULL, read_map, &c, result, 1) == 0)
+ sim_core_attach (sd, NULL,
+ 0, access_read_write_exec, 0,
+ result, len, 0, NULL, NULL);
+ }
+ }
+ break;
+
+ case __NR_munmap:
+ {
+ result = munmap((void *)arg1, arg2);
+ errcode = errno;
+ if (result != -1)
+ {
+ sim_core_detach (sd, NULL, 0, arg2, result);
+ }
+ }
+ break;
+
+ case __NR_truncate:
+ result = truncate((char *) t2h_addr(cb, &s, arg1), arg2);
+ errcode = errno;
+ break;
+
+ case __NR_ftruncate:
+ result = ftruncate(arg1, arg2);
+ errcode = errno;
+ break;
+
+ case __NR_fchmod:
+ result = fchmod(arg1, arg2);
+ errcode = errno;
+ break;
+
+ case __NR_fchown:
+ result = fchown(arg1, arg2, arg3);
+ errcode = errno;
+ break;
+
+ case __NR_statfs:
+ {
+ struct statfs statbuf;
+
+ result = statfs((char *) t2h_addr(cb, &s, arg1), &statbuf);
+ errcode = errno;
+
+ if (result != 0)
+ break;
+
+ translate_endian((void *) &statbuf, sizeof(statbuf));
+ if ((s.write_mem) (cb, &s, arg2, (char *) &statbuf, sizeof(statbuf))
+ != sizeof(statbuf))
+ {
+ result = -1;
+ errcode = EINVAL;
+ }
+ }
+ break;
+
+ case __NR_fstatfs:
+ {
+ struct statfs statbuf;
+
+ result = fstatfs(arg1, &statbuf);
+ errcode = errno;
+
+ if (result != 0)
+ break;
+
+ translate_endian((void *) &statbuf, sizeof(statbuf));
+ if ((s.write_mem) (cb, &s, arg2, (char *) &statbuf, sizeof(statbuf))
+ != sizeof(statbuf))
+ {
+ result = -1;
+ errcode = EINVAL;
+ }
+ }
+ break;
+
+ case __NR_syslog:
+ result = syslog(arg1, (char *) t2h_addr(cb, &s, arg2));
+ errcode = errno;
+ break;
+
+ case __NR_setitimer:
+ {
+ struct itimerval value, ovalue;
+
+ value = *((struct itimerval *) t2h_addr(cb, &s, arg2));
+ translate_endian((void *) &value, sizeof(value));
+
+ if (arg2 == 0)
+ {
+ result = setitimer(arg1, &value, NULL);
+ errcode = errno;
+ }
+ else
+ {
+ result = setitimer(arg1, &value, &ovalue);
+ errcode = errno;
+
+ if (result != 0)
+ break;
+
+ translate_endian((void *) &ovalue, sizeof(ovalue));
+ if ((s.write_mem) (cb, &s, arg3, (char *) &ovalue, sizeof(ovalue))
+ != sizeof(ovalue))
+ {
+ result = -1;
+ errcode = EINVAL;
+ }
+ }
+ }
+ break;
+
+ case __NR_getitimer:
+ {
+ struct itimerval value;
+
+ result = getitimer(arg1, &value);
+ errcode = errno;
+
+ if (result != 0)
+ break;
+
+ translate_endian((void *) &value, sizeof(value));
+ if ((s.write_mem) (cb, &s, arg2, (char *) &value, sizeof(value))
+ != sizeof(value))
+ {
+ result = -1;
+ errcode = EINVAL;
+ }
+ }
+ break;
+
+ case __NR_stat:
+ {
+ char *buf;
+ int buflen;
+ struct stat statbuf;
+
+ result = stat((char *) t2h_addr(cb, &s, arg1), &statbuf);
+ errcode = errno;
+ if (result < 0)
+ break;
+
+ buflen = cb_host_to_target_stat (cb, NULL, NULL);
+ buf = xmalloc (buflen);
+ if (cb_host_to_target_stat (cb, &statbuf, buf) != buflen)
+ {
+ /* The translation failed. This is due to an internal
+ host program error, not the target's fault. */
+ free (buf);
+ result = -1;
+ errcode = ENOSYS;
+ break;
+ }
+ if ((s.write_mem) (cb, &s, arg2, buf, buflen) != buflen)
+ {
+ free (buf);
+ result = -1;
+ errcode = EINVAL;
+ break;
+ }
+ free (buf);
+ }
+ break;
+
+ case __NR_lstat:
+ {
+ char *buf;
+ int buflen;
+ struct stat statbuf;
+
+ result = lstat((char *) t2h_addr(cb, &s, arg1), &statbuf);
+ errcode = errno;
+ if (result < 0)
+ break;
+
+ buflen = cb_host_to_target_stat (cb, NULL, NULL);
+ buf = xmalloc (buflen);
+ if (cb_host_to_target_stat (cb, &statbuf, buf) != buflen)
+ {
+ /* The translation failed. This is due to an internal
+ host program error, not the target's fault. */
+ free (buf);
+ result = -1;
+ errcode = ENOSYS;
+ break;
+ }
+ if ((s.write_mem) (cb, &s, arg2, buf, buflen) != buflen)
+ {
+ free (buf);
+ result = -1;
+ errcode = EINVAL;
+ break;
+ }
+ free (buf);
+ }
+ break;
+
+ case __NR_fstat:
+ {
+ char *buf;
+ int buflen;
+ struct stat statbuf;
+
+ result = fstat(arg1, &statbuf);
+ errcode = errno;
+ if (result < 0)
+ break;
+
+ buflen = cb_host_to_target_stat (cb, NULL, NULL);
+ buf = xmalloc (buflen);
+ if (cb_host_to_target_stat (cb, &statbuf, buf) != buflen)
+ {
+ /* The translation failed. This is due to an internal
+ host program error, not the target's fault. */
+ free (buf);
+ result = -1;
+ errcode = ENOSYS;
+ break;
+ }
+ if ((s.write_mem) (cb, &s, arg2, buf, buflen) != buflen)
+ {
+ free (buf);
+ result = -1;
+ errcode = EINVAL;
+ break;
+ }
+ free (buf);
+ }
+ break;
+
+ case __NR_sysinfo:
+ {
+ struct sysinfo info;
+
+ result = sysinfo(&info);
+ errcode = errno;
+
+ if (result != 0)
+ break;
+
+ info.uptime = conv_endian(info.uptime);
+ info.loads[0] = conv_endian(info.loads[0]);
+ info.loads[1] = conv_endian(info.loads[1]);
+ info.loads[2] = conv_endian(info.loads[2]);
+ info.totalram = conv_endian(info.totalram);
+ info.freeram = conv_endian(info.freeram);
+ info.sharedram = conv_endian(info.sharedram);
+ info.bufferram = conv_endian(info.bufferram);
+ info.totalswap = conv_endian(info.totalswap);
+ info.freeswap = conv_endian(info.freeswap);
+ info.procs = conv_endian16(info.procs);
+#if LINUX_VERSION_CODE >= 0x20400
+ info.totalhigh = conv_endian(info.totalhigh);
+ info.freehigh = conv_endian(info.freehigh);
+ info.mem_unit = conv_endian(info.mem_unit);
+#endif
+ if ((s.write_mem) (cb, &s, arg1, (char *) &info, sizeof(info))
+ != sizeof(info))
+ {
+ result = -1;
+ errcode = EINVAL;
+ }
+ }
+ break;
+
+#if 0
+ case __NR_ipc:
+ {
+ result = ipc(arg1, arg2, arg3, arg4,
+ (void *) t2h_addr(cb, &s, arg5), arg6);
+ errcode = errno;
+ }
+ break;
+#endif
+
+ case __NR_fsync:
+ result = fsync(arg1);
+ errcode = errno;
+ break;
+
+ case __NR_uname:
+ /* utsname contains only arrays of char, so it is not necessary
+ to translate endian. */
+ result = uname((struct utsname *) t2h_addr(cb, &s, arg1));
+ errcode = errno;
+ break;
+
+ case __NR_adjtimex:
+ {
+ struct timex buf;
+
+ result = adjtimex(&buf);
+ errcode = errno;
+
+ if (result != 0)
+ break;
+
+ translate_endian((void *) &buf, sizeof(buf));
+ if ((s.write_mem) (cb, &s, arg1, (char *) &buf, sizeof(buf))
+ != sizeof(buf))
+ {
+ result = -1;
+ errcode = EINVAL;
+ }
+ }
+ break;
+
+ case __NR_mprotect:
+ result = mprotect((void *) arg1, arg2, arg3);
+ errcode = errno;
+ break;
+
+ case __NR_get_kernel_syms:
+ {
+ struct kernel_sym table;
+
+ result = get_kernel_syms(&table);
+ errcode = errno;
+
+ if (result != 0)
+ break;
+
+ table.value = conv_endian(table.value);
+ if ((s.write_mem) (cb, &s, arg1, (char *) &table, sizeof(table))
+ != sizeof(table))
+ {
+ result = -1;
+ errcode = EINVAL;
+ }
+ }
+ break;
+
+ case __NR_fchdir:
+ result = fchdir(arg1);
+ errcode = errno;
+ break;
+
+ case __NR_setfsuid:
+ result = setfsuid(arg1);
+ errcode = errno;
+ break;
+
+ case __NR_setfsgid:
+ result = setfsgid(arg1);
+ errcode = errno;
+ break;
+
+#if 0
+ case __NR__llseek:
+ {
+ loff_t buf;
+
+ result = _llseek(arg1, arg2, arg3, &buf, arg5);
+ errcode = errno;
+
+ if (result != 0)
+ break;
+
+ translate_endian((void *) &buf, sizeof(buf));
+ if ((s.write_mem) (cb, &s, t2h_addr(cb, &s, arg4),
+ (char *) &buf, sizeof(buf)) != sizeof(buf))
+ {
+ result = -1;
+ errcode = EINVAL;
+ }
+ }
+ break;
+
+ case __NR_getdents:
+ {
+ struct dirent dir;
+
+ result = getdents(arg1, &dir, arg3);
+ errcode = errno;
+
+ if (result != 0)
+ break;
+
+ dir.d_ino = conv_endian(dir.d_ino);
+ dir.d_off = conv_endian(dir.d_off);
+ dir.d_reclen = conv_endian16(dir.d_reclen);
+ if ((s.write_mem) (cb, &s, arg2, (char *) &dir, sizeof(dir))
+ != sizeof(dir))
+ {
+ result = -1;
+ errcode = EINVAL;
+ }
+ }
+ break;
+#endif
+
+ case __NR_flock:
+ result = flock(arg1, arg2);
+ errcode = errno;
+ break;
+
+ case __NR_msync:
+ result = msync((void *) arg1, arg2, arg3);
+ errcode = errno;
+ break;
+
+ case __NR_readv:
+ {
+ struct iovec vector;
+
+ vector = *((struct iovec *) t2h_addr(cb, &s, arg2));
+ translate_endian((void *) &vector, sizeof(vector));
+
+ result = readv(arg1, &vector, arg3);
+ errcode = errno;
+ }
+ break;
+
+ case __NR_writev:
+ {
+ struct iovec vector;
+
+ vector = *((struct iovec *) t2h_addr(cb, &s, arg2));
+ translate_endian((void *) &vector, sizeof(vector));
+
+ result = writev(arg1, &vector, arg3);
+ errcode = errno;
+ }
+ break;
+
+ case __NR_fdatasync:
+ result = fdatasync(arg1);
+ errcode = errno;
+ break;
+
+ case __NR_mlock:
+ result = mlock((void *) t2h_addr(cb, &s, arg1), arg2);
+ errcode = errno;
+ break;
+
+ case __NR_munlock:
+ result = munlock((void *) t2h_addr(cb, &s, arg1), arg2);
+ errcode = errno;
+ break;
+
+ case __NR_nanosleep:
+ {
+ struct timespec req, rem;
+
+ req = *((struct timespec *) t2h_addr(cb, &s, arg2));
+ translate_endian((void *) &req, sizeof(req));
+
+ result = nanosleep(&req, &rem);
+ errcode = errno;
+
+ if (result != 0)
+ break;
+
+ translate_endian((void *) &rem, sizeof(rem));
+ if ((s.write_mem) (cb, &s, arg2, (char *) &rem, sizeof(rem))
+ != sizeof(rem))
+ {
+ result = -1;
+ errcode = EINVAL;
+ }
+ }
+ break;
+
+ case __NR_mremap: /* FIXME */
+ result = (int) mremap((void *) t2h_addr(cb, &s, arg1), arg2, arg3, arg4);
+ errcode = errno;
+ break;
+
+ case __NR_getresuid:
+ {
+ uid_t ruid, euid, suid;
+
+ result = getresuid(&ruid, &euid, &suid);
+ errcode = errno;
+
+ if (result != 0)
+ break;
+
+ *((uid_t *) t2h_addr(cb, &s, arg1)) = conv_endian(ruid);
+ *((uid_t *) t2h_addr(cb, &s, arg2)) = conv_endian(euid);
+ *((uid_t *) t2h_addr(cb, &s, arg3)) = conv_endian(suid);
+ }
+ break;
+
+ case __NR_poll:
+ {
+ struct pollfd ufds;
+
+ ufds = *((struct pollfd *) t2h_addr(cb, &s, arg1));
+ ufds.fd = conv_endian(ufds.fd);
+ ufds.events = conv_endian16(ufds.events);
+ ufds.revents = conv_endian16(ufds.revents);
+
+ result = poll(&ufds, arg2, arg3);
+ errcode = errno;
+ }
+ break;
+
+ case __NR_getresgid:
+ {
+ uid_t rgid, egid, sgid;
+
+ result = getresgid(&rgid, &egid, &sgid);
+ errcode = errno;
+
+ if (result != 0)
+ break;
+
+ *((uid_t *) t2h_addr(cb, &s, arg1)) = conv_endian(rgid);
+ *((uid_t *) t2h_addr(cb, &s, arg2)) = conv_endian(egid);
+ *((uid_t *) t2h_addr(cb, &s, arg3)) = conv_endian(sgid);
+ }
+ break;
+
+ case __NR_pread:
+ result = pread(arg1, (void *) t2h_addr(cb, &s, arg2), arg3, arg4);
+ errcode = errno;
+ break;
+
+ case __NR_pwrite:
+ result = pwrite(arg1, (void *) t2h_addr(cb, &s, arg2), arg3, arg4);
+ errcode = errno;
+ break;
+
+ case __NR_chown:
+ result = chown((char *) t2h_addr(cb, &s, arg1), arg2, arg3);
+ errcode = errno;
+ break;
+
+ case __NR_getcwd:
+ result = (int) getcwd((char *) t2h_addr(cb, &s, arg1), arg2);
+ errcode = errno;
+ break;
+
+ case __NR_sendfile:
+ {
+ off_t offset;
+
+ offset = *((off_t *) t2h_addr(cb, &s, arg3));
+ offset = conv_endian(offset);
+
+ result = sendfile(arg1, arg2, &offset, arg3);
+ errcode = errno;
+
+ if (result != 0)
+ break;
+
+ *((off_t *) t2h_addr(cb, &s, arg3)) = conv_endian(offset);
+ }
+ break;
+
+ default:
+ result = -1;
+ errcode = ENOSYS;
+ break;
+ }
+
+ if (result == -1)
+ m32rbf_h_gr_set (current_cpu, 0, -errcode);
+ else
+ m32rbf_h_gr_set (current_cpu, 0, result);
+ break;
+ }
+
+ case TRAP_BREAKPOINT:
+ sim_engine_halt (sd, current_cpu, NULL, pc,
+ sim_stopped, SIM_SIGTRAP);
+ break;
+
+ case TRAP_FLUSH_CACHE:
+ /* Do nothing. */
+ break;
+
+ default :
+ {
+ /* Use cr5 as EVB (EIT Vector Base) register. */
+ USI new_pc = m32rbf_h_cr_get (current_cpu, 5) + 0x40 + num * 4;
+ return new_pc;
+ }
+ }
+
+ /* Fake an "rte" insn. */
+ /* FIXME: Should duplicate all of rte processing. */
+ return (pc & -4) + 4;
+}
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