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gdbarch: add instruction predicate methods
[deliverable/binutils-gdb.git] / bfd / elf64-mips.c
diff --git a/bfd/elf64-mips.c b/bfd/elf64-mips.c
index a835f66e62d1b6296f012cad5e98e0d67cb9dbb0..89ccf90c4751ee33a2ba8863c48db83e3f1a6e41 100644 (file)
--- a/bfd/elf64-mips.c
+++ b/bfd/elf64-mips.c
@@ -1803,7 +1803,7 @@ static reloc_howto_type mips16_elf64_howto_table_rela[] =
         _bfd_mips_elf_generic_reloc, /* special_function */
         "R_MIPS16_TLS_GD",     /* name */
         FALSE,                 /* partial_inplace */
-        0x0000ffff,            /* src_mask */
+        0,                     /* src_mask */
         0x0000ffff,            /* dst_mask */
         FALSE),                /* pcrel_offset */
 
@@ -1818,7 +1818,7 @@ static reloc_howto_type mips16_elf64_howto_table_rela[] =
         _bfd_mips_elf_generic_reloc, /* special_function */
         "R_MIPS16_TLS_LDM",    /* name */
         FALSE,                 /* partial_inplace */
-        0x0000ffff,            /* src_mask */
+        0,                     /* src_mask */
         0x0000ffff,            /* dst_mask */
         FALSE),                /* pcrel_offset */
 
@@ -1833,7 +1833,7 @@ static reloc_howto_type mips16_elf64_howto_table_rela[] =
         _bfd_mips_elf_generic_reloc, /* special_function */
         "R_MIPS16_TLS_DTPREL_HI16",    /* name */
         FALSE,                 /* partial_inplace */
-        0x0000ffff,            /* src_mask */
+        0,                     /* src_mask */
         0x0000ffff,            /* dst_mask */
         FALSE),                /* pcrel_offset */
 
@@ -1848,7 +1848,7 @@ static reloc_howto_type mips16_elf64_howto_table_rela[] =
         _bfd_mips_elf_generic_reloc, /* special_function */
         "R_MIPS16_TLS_DTPREL_LO16",    /* name */
         FALSE,                 /* partial_inplace */
-        0x0000ffff,            /* src_mask */
+        0,                     /* src_mask */
         0x0000ffff,            /* dst_mask */
         FALSE),                /* pcrel_offset */
 
@@ -1863,7 +1863,7 @@ static reloc_howto_type mips16_elf64_howto_table_rela[] =
         _bfd_mips_elf_generic_reloc, /* special_function */
         "R_MIPS16_TLS_GOTTPREL",       /* name */
         FALSE,                 /* partial_inplace */
-        0x0000ffff,            /* src_mask */
+        0,                     /* src_mask */
         0x0000ffff,            /* dst_mask */
         FALSE),                /* pcrel_offset */
 
@@ -1878,7 +1878,7 @@ static reloc_howto_type mips16_elf64_howto_table_rela[] =
         _bfd_mips_elf_generic_reloc, /* special_function */
         "R_MIPS16_TLS_TPREL_HI16", /* name */
         FALSE,                 /* partial_inplace */
-        0x0000ffff,            /* src_mask */
+        0,                     /* src_mask */
         0x0000ffff,            /* dst_mask */
         FALSE),                /* pcrel_offset */
 
@@ -1893,7 +1893,7 @@ static reloc_howto_type mips16_elf64_howto_table_rela[] =
         _bfd_mips_elf_generic_reloc, /* special_function */
         "R_MIPS16_TLS_TPREL_LO16", /* name */
         FALSE,                 /* partial_inplace */
-        0x0000ffff,            /* src_mask */
+        0,                     /* src_mask */
         0x0000ffff,            /* dst_mask */
         FALSE),                /* pcrel_offset */
 };
@@ -2184,6 +2184,37 @@ static reloc_howto_type micromips_elf64_howto_table_rel[] =
         0x0000ffff,            /* src_mask */
         0x0000ffff,            /* dst_mask */
         FALSE),                /* pcrel_offset */
+
+  /* Section displacement.  */
+  HOWTO (R_MICROMIPS_SCN_DISP,  /* type */
+        0,                     /* rightshift */
+        2,                     /* size (0 = byte, 1 = short, 2 = long) */
+        32,                    /* bitsize */
+        FALSE,                 /* pc_relative */
+        0,                     /* bitpos */
+        complain_overflow_dont, /* complain_on_overflow */
+        _bfd_mips_elf_generic_reloc, /* special_function */
+        "R_MICROMIPS_SCN_DISP", /* name */
+        TRUE,                  /* partial_inplace */
+        0xffffffff,            /* src_mask */
+        0xffffffff,            /* dst_mask */
+        FALSE),                /* pcrel_offset */
+
+  /* Protected jump conversion.  This is an optimization hint.  No
+     relocation is required for correctness.  */
+  HOWTO (R_MICROMIPS_JALR,     /* type */
+        0,                     /* rightshift */
+        2,                     /* size (0 = byte, 1 = short, 2 = long) */
+        32,                    /* bitsize */
+        FALSE,                 /* pc_relative */
+        0,                     /* bitpos */
+        complain_overflow_dont, /* complain_on_overflow */
+        _bfd_mips_elf_generic_reloc, /* special_function */
+        "R_MICROMIPS_JALR",    /* name */
+        FALSE,                 /* partial_inplace */
+        0,                     /* src_mask */
+        0x00000000,            /* dst_mask */
+        FALSE),                /* pcrel_offset */
 };
 
 static reloc_howto_type micromips_elf64_howto_table_rela[] =
@@ -2495,6 +2526,37 @@ static reloc_howto_type micromips_elf64_howto_table_rela[] =
         0,                     /* src_mask */
         0x0000ffff,            /* dst_mask */
         FALSE),                /* pcrel_offset */
+
+  /* Section displacement.  */
+  HOWTO (R_MICROMIPS_SCN_DISP,  /* type */
+        0,                     /* rightshift */
+        2,                     /* size (0 = byte, 1 = short, 2 = long) */
+        32,                    /* bitsize */
+        FALSE,                 /* pc_relative */
+        0,                     /* bitpos */
+        complain_overflow_dont, /* complain_on_overflow */
+        _bfd_mips_elf_generic_reloc, /* special_function */
+        "R_MICROMIPS_SCN_DISP", /* name */
+        FALSE,                 /* partial_inplace */
+        0,                     /* src_mask */
+        0xffffffff,            /* dst_mask */
+        FALSE),                /* pcrel_offset */
+
+  /* Protected jump conversion.  This is an optimization hint.  No
+     relocation is required for correctness.  */
+  HOWTO (R_MICROMIPS_JALR,     /* type */
+        0,                     /* rightshift */
+        2,                     /* size (0 = byte, 1 = short, 2 = long) */
+        32,                    /* bitsize */
+        FALSE,                 /* pc_relative */
+        0,                     /* bitpos */
+        complain_overflow_dont, /* complain_on_overflow */
+        _bfd_mips_elf_generic_reloc, /* special_function */
+        "R_MICROMIPS_JALR",    /* name */
+        FALSE,                 /* partial_inplace */
+        0,                     /* src_mask */
+        0x00000000,            /* dst_mask */
+        FALSE),                /* pcrel_offset */
 };
 
 /* GNU extension to record C++ vtable hierarchy */
@@ -2560,6 +2622,23 @@ static reloc_howto_type elf_mips_gnu_rela16_s2 =
         0,                     /* src_mask */
         0x0000ffff,            /* dst_mask */
         TRUE);                 /* pcrel_offset */
+
+/* 32 bit pc-relative.  Used for compact EH tables.  */
+static reloc_howto_type elf_mips_gnu_pcrel32 =
+  HOWTO (R_MIPS_PC32,          /* type */
+        0,                     /* rightshift */
+        2,                     /* size (0 = byte, 1 = short, 2 = long) */
+        32,                    /* bitsize */
+        TRUE,                  /* pc_relative */
+        0,                     /* bitpos */
+        complain_overflow_signed, /* complain_on_overflow */
+        _bfd_mips_elf_generic_reloc, /* special_function */
+        "R_MIPS_PC32",         /* name */
+        TRUE,                  /* partial_inplace */
+        0xffffffff,            /* src_mask */
+        0xffffffff,            /* dst_mask */
+        TRUE);                 /* pcrel_offset */
+
 \f
 /* Originally a VxWorks extension, but now used for other systems too.  */
 static reloc_howto_type elf_mips_copy_howto =
@@ -2570,7 +2649,7 @@ static reloc_howto_type elf_mips_copy_howto =
         FALSE,                 /* pc_relative */
         0,                     /* bitpos */
         complain_overflow_bitfield, /* complain_on_overflow */
-        bfd_elf_generic_reloc, /* special_function */
+        _bfd_mips_elf_generic_reloc, /* special_function */
         "R_MIPS_COPY",         /* name */
         FALSE,                 /* partial_inplace */
         0x0,                   /* src_mask */
@@ -2586,12 +2665,29 @@ static reloc_howto_type elf_mips_jump_slot_howto =
         FALSE,                 /* pc_relative */
         0,                     /* bitpos */
         complain_overflow_bitfield, /* complain_on_overflow */
-        bfd_elf_generic_reloc, /* special_function */
+        _bfd_mips_elf_generic_reloc, /* special_function */
         "R_MIPS_JUMP_SLOT",    /* name */
         FALSE,                 /* partial_inplace */
         0x0,                   /* src_mask */
         0x0,                   /* dst_mask */
         FALSE);                /* pcrel_offset */
+
+/* Used in EH tables.  */
+static reloc_howto_type elf_mips_eh_howto =
+  HOWTO (R_MIPS_EH,            /* type */
+        0,                     /* rightshift */
+        2,                     /* size (0 = byte, 1 = short, 2 = long) */
+        32,                    /* bitsize */
+        FALSE,                 /* pc_relative */
+        0,                     /* bitpos */
+        complain_overflow_signed, /* complain_on_overflow */
+        _bfd_mips_elf_generic_reloc, /* special_function */
+        "R_MIPS_EH",           /* name */
+        TRUE,                  /* partial_inplace */
+        0xffffffff,            /* src_mask */
+        0xffffffff,            /* dst_mask */
+        FALSE);                /* pcrel_offset */
+
 \f
 /* Swap in a MIPS 64-bit Rel reloc.  */
 
@@ -2708,6 +2804,7 @@ mips_elf64_be_swap_reloc_out (bfd *abfd, const Elf_Internal_Rela *src,
 
   mirel.r_offset = src[0].r_offset;
   BFD_ASSERT(src[0].r_offset == src[1].r_offset);
+  BFD_ASSERT(src[0].r_offset == src[2].r_offset);
 
   mirel.r_type = ELF64_MIPS_R_TYPE (src[0].r_info);
   mirel.r_sym = ELF64_R_SYM (src[0].r_info);
@@ -3151,6 +3248,8 @@ static const struct elf_reloc_map micromips_reloc_map[] =
   { BFD_RELOC_MICROMIPS_HIGHEST, R_MICROMIPS_HIGHEST - R_MICROMIPS_min },
   { BFD_RELOC_MICROMIPS_CALL_HI16, R_MICROMIPS_CALL_HI16 - R_MICROMIPS_min },
   { BFD_RELOC_MICROMIPS_CALL_LO16, R_MICROMIPS_CALL_LO16 - R_MICROMIPS_min },
+  { BFD_RELOC_MICROMIPS_SCN_DISP, R_MICROMIPS_SCN_DISP - R_MICROMIPS_min },
+  { BFD_RELOC_MICROMIPS_JALR, R_MICROMIPS_JALR - R_MICROMIPS_min },
 };
 /* Given a BFD reloc type, return a howto structure.  */
 
@@ -3192,6 +3291,10 @@ bfd_elf64_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
       return &elf_mips_gnu_vtinherit_howto;
     case BFD_RELOC_VTABLE_ENTRY:
       return &elf_mips_gnu_vtentry_howto;
+    case BFD_RELOC_32_PCREL:
+      return &elf_mips_gnu_pcrel32;
+    case BFD_RELOC_MIPS_EH:
+      return &elf_mips_eh_howto;
     case BFD_RELOC_MIPS_COPY:
       return &elf_mips_copy_howto;
     case BFD_RELOC_MIPS_JUMP_SLOT:
@@ -3239,6 +3342,10 @@ bfd_elf64_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
     return &elf_mips_gnu_rel16_s2;
   if (strcasecmp (elf_mips_gnu_rela16_s2.name, r_name) == 0)
     return &elf_mips_gnu_rela16_s2;
+  if (strcasecmp (elf_mips_gnu_pcrel32.name, r_name) == 0)
+    return &elf_mips_gnu_pcrel32;
+  if (strcasecmp (elf_mips_eh_howto.name, r_name) == 0)
+    return &elf_mips_eh_howto;
   if (strcasecmp (elf_mips_copy_howto.name, r_name) == 0)
     return &elf_mips_copy_howto;
   if (strcasecmp (elf_mips_jump_slot_howto.name, r_name) == 0)
@@ -3263,6 +3370,10 @@ mips_elf64_rtype_to_howto (unsigned int r_type, bfd_boolean rela_p)
        return &elf_mips_gnu_rela16_s2;
       else
        return &elf_mips_gnu_rel16_s2;
+    case R_MIPS_PC32:
+      return &elf_mips_gnu_pcrel32;
+    case R_MIPS_EH:
+      return &elf_mips_eh_howto;
     case R_MIPS_COPY:
       return &elf_mips_copy_howto;
     case R_MIPS_JUMP_SLOT:
@@ -3943,10 +4054,10 @@ elf64_mips_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
 
       case 480:                /* Linux/MIPS - N64 kernel */
        /* pr_cursig */
-       elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
+       elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
 
        /* pr_pid */
-       elf_tdata (abfd)->core_lwpid = bfd_get_32 (abfd, note->descdata + 32);
+       elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 32);
 
        /* pr_reg */
        offset = 112;
@@ -3969,9 +4080,9 @@ elf64_mips_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
        return FALSE;
 
       case 136:                /* Linux/MIPS - N64 kernel elf_prpsinfo */
-       elf_tdata (abfd)->core_program
+       elf_tdata (abfd)->core->program
         = _bfd_elfcore_strndup (abfd, note->descdata + 40, 16);
-       elf_tdata (abfd)->core_command
+       elf_tdata (abfd)->core->command
         = _bfd_elfcore_strndup (abfd, note->descdata + 56, 80);
     }
 
@@ -3980,7 +4091,7 @@ elf64_mips_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
      implementations, so strip it off if it exists.  */
 
   {
-    char *command = elf_tdata (abfd)->core_command;
+    char *command = elf_tdata (abfd)->core->command;
     int n = strlen (command);
 
     if (0 < n && command[n - 1] == ' ')
@@ -4125,7 +4236,7 @@ const struct elf_size_info mips_elf64_size_info =
 #define elf_backend_grok_prstatus      elf64_mips_grok_prstatus
 #define elf_backend_grok_psinfo                elf64_mips_grok_psinfo
 
-#define elf_backend_got_header_size    (4 * MIPS_RESERVED_GOTNO)
+#define elf_backend_got_header_size    (8 * MIPS_RESERVED_GOTNO)
 
 /* MIPS ELF64 can use a mixture of REL and RELA, but some Relocations
    work better/work only in RELA, so we default to this.  */
@@ -4165,6 +4276,7 @@ const struct elf_size_info mips_elf64_size_info =
 #define bfd_elf64_get_dynamic_reloc_upper_bound mips_elf64_get_dynamic_reloc_upper_bound
 #define bfd_elf64_canonicalize_dynamic_reloc mips_elf64_canonicalize_dynamic_reloc
 #define bfd_elf64_bfd_relax_section     _bfd_mips_relax_section
+#define bfd_elf64_mkobject             _bfd_mips_elf_mkobject
 
 /* MIPS ELF64 archive functions.  */
 #define bfd_elf64_archive_functions
@@ -4237,18 +4349,6 @@ extern bfd_boolean bfd_elf64_archive_write_armap
 #undef ELF_OSABI
 #define        ELF_OSABI                       ELFOSABI_FREEBSD
 
-/* The kernel recognizes executables as valid only if they carry a
-   "FreeBSD" label in the ELF header.  So we put this label on all
-   executables and (for simplicity) also all other object files.  */
-
-static void
-elf_fbsd_post_process_headers (bfd *abfd, struct bfd_link_info *info)
-{
-  _bfd_elf_set_osabi (abfd, info);
-}
-
-#undef elf_backend_post_process_headers
-#define        elf_backend_post_process_headers        elf_fbsd_post_process_headers
 #undef elf64_bed
 #define elf64_bed                              elf64_fbsd_tradbed
 
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