Merge GDB 7.5.1

bfd/elf32-m68hc12.c

 /* Motorola 68HC12-specific support for 32-bit ELF
-   Copyright 1999, 2000, 2002, 2003, 2004, 2005, 2006, 2007
+   Copyright 1999, 2000, 2002, 2003, 2004, 2005, 2006, 2007, 2010, 2012
    Free Software Foundation, Inc.
    Contributed by Stephane Carrez (stcarrez@nerim.fr)
    (Heavily copied from the D10V port by Martin Hunt (hunt@cygnus.com))
 
    This file is part of BFD, the Binary File Descriptor library.
 
    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 3 of the License, or
    (at your option) any later version.
@@ skipping 17 matching lines @@
 #include "elf/m68hc11.h"
 #include "opcode/m68hc11.h"
 
 /* Relocation functions.  */
 static reloc_howto_type *bfd_elf32_bfd_reloc_type_lookup
   (bfd *, bfd_reloc_code_real_type);
 static void m68hc11_info_to_howto_rel
   (bfd *, arelent *, Elf_Internal_Rela *);
 
 /* Trampoline generation.  */
-static bfd_boolean m68hc12_elf_size_one_stub
-  (struct bfd_hash_entry *gen_entry, void *in_arg);
-static bfd_boolean m68hc12_elf_build_one_stub
-  (struct bfd_hash_entry *gen_entry, void *in_arg);
-static struct bfd_link_hash_table* m68hc12_elf_bfd_link_hash_table_create
-  (bfd*);
 
-static bfd_boolean m68hc12_elf_set_mach_from_flags PARAMS ((bfd *));
 
 /* Use REL instead of RELA to save space */
 #define USE_REL 1
 
 /* The 68HC12 microcontroler has a memory bank switching system
    with a 16Kb window in the 64Kb address space.  The extended memory
    is mapped in the 16Kb window (at 0x8000).  The page register controls
    which 16Kb bank is mapped.  The call/rtc instructions take care of
    bank switching in function calls/returns.
 
@@ skipping 259 matching lines @@
          0,                     /* bitpos */
          complain_overflow_dont,        /* complain_on_overflow */
          m68hc11_elf_special_reloc,/* special_function */
          "R_M68HC12_PAGE",      /* name */
          FALSE,                 /* partial_inplace */
          0x00ff,                /* src_mask */
          0x00ff,                /* dst_mask */
          FALSE),                /* pcrel_offset */
 
   EMPTY_HOWTO (14),
-  EMPTY_HOWTO (15),
-  EMPTY_HOWTO (16),
-  EMPTY_HOWTO (17),
-  EMPTY_HOWTO (18),
-  EMPTY_HOWTO (19),
+
+  /* A 16 bit absolute relocation.  */
+  HOWTO (R_M68HC12_16B,         /* 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_M68HC12_16B",       /* name */
+         FALSE,                 /* partial_inplace */
+         0xffff,                        /* src_mask */
+         0xffff,                        /* dst_mask */
+         FALSE),                /* pcrel_offset */
+
+  /* A 9 bit PC-rel relocation.  */
+  HOWTO (R_M68HC12_PCREL_9,     /* type */
+         1,                     /* rightshift */
+         1,                     /* size (0 = byte, 1 = short, 2 = long) */
+         10,                    /* bitsize (result is >>1) */
+         TRUE,                  /* pc_relative */
+         0,                     /* bitpos */
+         complain_overflow_dont,        /* complain_on_overflow */
+         bfd_elf_generic_reloc, /* special_function */
+         "R_M68HC12_PCREL_9",   /* name */
+         TRUE,                  /* partial_inplace */
+         0xfe00,                /* src_mask */
+         0x01ff,                /* dst_mask */
+         TRUE),                 /* pcrel_offset */
+
+  /* A 10 bit PC-rel relocation.  */
+  HOWTO (R_M68HC12_PCREL_10,    /* type */
+         1,                     /* rightshift */
+         1,                     /* size (0 = byte, 1 = short, 2 = long) */
+         11,                    /* bitsize (result is >>1) */
+         TRUE,                  /* pc_relative */
+         0,                     /* bitpos */
+         complain_overflow_dont,        /* complain_on_overflow */
+         bfd_elf_generic_reloc, /* special_function */
+         "R_M68HC12_PCREL_10",  /* name */
+         TRUE,                  /* partial_inplace */
+         0xfc00,                /* src_mask */
+         0x03ff,                /* dst_mask */
+         TRUE),                 /* pcrel_offset */
+
+  /* A 8 bit absolute relocation (upper address).  */
+  HOWTO (R_M68HC12_HI8XG,               /* type */
+         8,                     /* rightshift */
+         0,                     /* size (0 = byte, 1 = short, 2 = long) */
+         8,                     /* bitsize */
+         FALSE,                 /* pc_relative */
+         0,                     /* bitpos */
+         complain_overflow_bitfield,    /* complain_on_overflow */
+         bfd_elf_generic_reloc, /* special_function */
+         "R_M68HC12_HI8XG",     /* name */
+         FALSE,                 /* partial_inplace */
+         0x00ff,                /* src_mask */
+         0x00ff,                /* dst_mask */
+         FALSE),                /* pcrel_offset */
+
+  /* A 8 bit absolute relocation (lower address).  */
+  HOWTO (R_M68HC12_LO8XG,               /* type */
+         8,                     /* rightshift */
+         0,                     /* size (0 = byte, 1 = short, 2 = long) */
+         8,                     /* bitsize */
+         FALSE,                 /* pc_relative */
+         0,                     /* bitpos */
+         complain_overflow_bitfield,    /* complain_on_overflow */
+         bfd_elf_generic_reloc, /* special_function */
+         "R_M68HC12_LO8XG",     /* name */
+         FALSE,                 /* partial_inplace */
+         0x00ff,                /* src_mask */
+         0x00ff,                /* dst_mask */
+         FALSE),                /* pcrel_offset */
 
   /* Mark beginning of a jump instruction (any form).  */
   HOWTO (R_M68HC11_RL_JUMP,     /* type */
          0,                     /* rightshift */
          1,                     /* size (0 = byte, 1 = short, 2 = long) */
          0,                     /* bitsize */
          FALSE,                 /* pc_relative */
          0,                     /* bitpos */
          complain_overflow_dont,        /* complain_on_overflow */
          m68hc11_elf_ignore_reloc,      /* special_function */
@@ skipping 20 matching lines @@
 };
 
 /* Map BFD reloc types to M68HC11 ELF reloc types.  */
 
 struct m68hc11_reloc_map
 {
   bfd_reloc_code_real_type bfd_reloc_val;
   unsigned char elf_reloc_val;
 };
 
-static const struct m68hc11_reloc_map m68hc11_reloc_map[] = {
+static const struct m68hc11_reloc_map m68hc11_reloc_map[] =
+{
   {BFD_RELOC_NONE, R_M68HC11_NONE,},
   {BFD_RELOC_8, R_M68HC11_8},
   {BFD_RELOC_M68HC11_HI8, R_M68HC11_HI8},
   {BFD_RELOC_M68HC11_LO8, R_M68HC11_LO8},
   {BFD_RELOC_8_PCREL, R_M68HC11_PCREL_8},
   {BFD_RELOC_16_PCREL, R_M68HC11_PCREL_16},
   {BFD_RELOC_16, R_M68HC11_16},
   {BFD_RELOC_32, R_M68HC11_32},
   {BFD_RELOC_M68HC11_3B, R_M68HC11_3B},
 
   {BFD_RELOC_VTABLE_INHERIT, R_M68HC11_GNU_VTINHERIT},
   {BFD_RELOC_VTABLE_ENTRY, R_M68HC11_GNU_VTENTRY},
 
   {BFD_RELOC_M68HC11_LO16, R_M68HC11_LO16},
   {BFD_RELOC_M68HC11_PAGE, R_M68HC11_PAGE},
   {BFD_RELOC_M68HC11_24, R_M68HC11_24},
 
   {BFD_RELOC_M68HC11_RL_JUMP, R_M68HC11_RL_JUMP},
   {BFD_RELOC_M68HC11_RL_GROUP, R_M68HC11_RL_GROUP},
+
+  {BFD_RELOC_M68HC12_16B, R_M68HC12_16B},
+
+  {BFD_RELOC_M68HC12_9_PCREL, R_M68HC12_PCREL_9},
+  {BFD_RELOC_M68HC12_10_PCREL, R_M68HC12_PCREL_10},
+  {BFD_RELOC_M68HC12_HI8XG, R_M68HC12_HI8XG},
+  {BFD_RELOC_M68HC12_LO8XG, R_M68HC12_LO8XG},
 };
 
 static reloc_howto_type *
 bfd_elf32_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
                                  bfd_reloc_code_real_type code)
 {
   unsigned int i;
 
   for (i = 0;
        i < sizeof (m68hc11_reloc_map) / sizeof (struct m68hc11_reloc_map);
@@ skipping 169 matching lines @@
 #define ELF_MACHINE_CODE        EM_68HC12
 #define ELF_MAXPAGESIZE         0x1000
 
 #define TARGET_BIG_SYM          bfd_elf32_m68hc12_vec
 #define TARGET_BIG_NAME         "elf32-m68hc12"
 
 #define elf_info_to_howto       0
 #define elf_info_to_howto_rel   m68hc11_info_to_howto_rel
 #define elf_backend_check_relocs     elf32_m68hc11_check_relocs
 #define elf_backend_relocate_section elf32_m68hc11_relocate_section