Initial revision

1 files changed, 381 insertions, 0 deletions

diff --git a/bfd/elfarm-oabi.c b/bfd/elfarm-oabi.c
new file mode 100644
index 00000000000..f219b92ea7b
--- /dev/null
+++ b/bfd/elfarm-oabi.c
@@ -0,0 +1,381 @@
+/* 32-bit ELF support for ARM old abi option.
+   Copyright 1999 Free Software Foundation, Inc.
+
+   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 2 of the License, 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 "elf/arm-oabi.h"
+#include "bfd.h"
+#include "sysdep.h"
+#include "libbfd.h"
+#include "elf-bfd.h"
+
+#define USE_RELA
+
+#define TARGET_LITTLE_SYM               bfd_elf32_littlearm_oabi_vec
+#define TARGET_LITTLE_NAME              "elf32-littlearm-oabi"
+#define TARGET_BIG_SYM                  bfd_elf32_bigarm_oabi_vec
+#define TARGET_BIG_NAME                 "elf32-bigarm-oabi"
+
+#define elf_info_to_howto               elf32_arm_info_to_howto
+#define elf_info_to_howto_rel           0
+
+static reloc_howto_type elf32_arm_howto_table[] =
+{
+  /* No relocation */
+  HOWTO (R_ARM_NONE,		/* type */
+	 0,			/* rightshift */
+	 0,			/* size (0 = byte, 1 = short, 2 = long) */
+	 0,			/* bitsize */
+	 false,			/* pc_relative */
+	 0,			/* bitpos */
+	 complain_overflow_dont,	/* complain_on_overflow */
+	 bfd_elf_generic_reloc,	/* special_function */
+	 "R_ARM_NONE",		/* name */
+	 false,			/* partial_inplace */
+	 0,			/* src_mask */
+	 0,			/* dst_mask */
+	 false),		/* pcrel_offset */
+
+  HOWTO (R_ARM_PC24,		/* 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_ARM_PC24",		/* name */
+	 false,			/* partial_inplace */
+	 0x00ffffff,		/* src_mask */
+	 0x00ffffff,		/* dst_mask */
+	 true),			/* pcrel_offset */
+
+  /* 32 bit absolute */
+  HOWTO (R_ARM_ABS32,		/* 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_ARM_ABS32",		/* name */
+	 false,			/* partial_inplace */
+	 0xffffffff,		/* src_mask */
+	 0xffffffff,		/* dst_mask */
+	 false),		/* pcrel_offset */
+
+  /* standard 32bit pc-relative reloc */
+  HOWTO (R_ARM_REL32,		/* type */
+	 0,			/* rightshift */
+	 2,			/* size (0 = byte, 1 = short, 2 = long) */
+	 32,			/* bitsize */
+	 true,			/* pc_relative */
+	 0,			/* bitpos */
+	 complain_overflow_bitfield,	/* complain_on_overflow */
+	 bfd_elf_generic_reloc,	/* special_function */
+	 "R_ARM_REL32",		/* name */
+	 false,			/* partial_inplace */
+	 0xffffffff,		/* src_mask */
+	 0xffffffff,		/* dst_mask */
+	 true),			/* pcrel_offset */
+
+  /* 8 bit absolute */
+  HOWTO (R_ARM_ABS8,		/* type */
+	 0,			/* 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_ARM_ABS8",		/* name */
+	 false,			/* partial_inplace */
+	 0x000000ff,		/* src_mask */
+	 0x000000ff,		/* dst_mask */
+	 false),		/* pcrel_offset */
+
+   /* 16 bit absolute */
+  HOWTO (R_ARM_ABS16,		/* 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_ARM_ABS16",		/* name */
+	 false,			/* partial_inplace */
+	 0,			/* src_mask */
+	 0,			/* dst_mask */
+	 false),		/* pcrel_offset */
+
+  /* 12 bit absolute */
+  HOWTO (R_ARM_ABS12,		/* type */
+	 0,			/* rightshift */
+	 2,			/* size (0 = byte, 1 = short, 2 = long) */
+	 12,			/* bitsize */
+	 false,			/* pc_relative */
+	 0,			/* bitpos */
+	 complain_overflow_bitfield,	/* complain_on_overflow */
+	 bfd_elf_generic_reloc,	/* special_function */
+	 "R_ARM_ABS12",		/* name */
+	 false,			/* partial_inplace */
+	 0x000008ff,		/* src_mask */
+	 0x000008ff,		/* dst_mask */
+	 false),		/* pcrel_offset */
+
+  HOWTO (R_ARM_THM_ABS5,	/* type */
+	 6,			/* rightshift */
+	 1,			/* size (0 = byte, 1 = short, 2 = long) */
+	 5,			/* bitsize */
+	 false,			/* pc_relative */
+	 0,			/* bitpos */
+	 complain_overflow_bitfield,	/* complain_on_overflow */
+	 bfd_elf_generic_reloc,	/* special_function */
+	 "R_ARM_THM_ABS5",	/* name */
+	 false,			/* partial_inplace */
+	 0x000007e0,		/* src_mask */
+	 0x000007e0,		/* dst_mask */
+	 false),		/* pcrel_offset */
+
+  HOWTO (R_ARM_THM_PC22,	/* type */
+	 1,			/* rightshift */
+	 2,			/* size (0 = byte, 1 = short, 2 = long) */
+	 23,			/* bitsize */
+	 true,			/* pc_relative */
+	 0,			/* bitpos */
+	 complain_overflow_signed,	/* complain_on_overflow */
+	 bfd_elf_generic_reloc,	/* special_function */
+	 "R_ARM_THM_PC22",	/* name */
+	 false,			/* partial_inplace */
+	 0x07ff07ff,		/* src_mask */
+	 0x07ff07ff,		/* dst_mask */
+	 true),			/* pcrel_offset */
+
+  HOWTO (R_ARM_SBREL32,		/* type */
+	 0,			/* rightshift */
+	 0,			/* size (0 = byte, 1 = short, 2 = long) */
+	 0,			/* bitsize */
+	 false,			/* pc_relative */
+	 0,			/* bitpos */
+	 complain_overflow_dont,	/* complain_on_overflow */
+	 bfd_elf_generic_reloc,	/* special_function */
+	 "R_ARM_SBREL32",	/* name */
+	 false,			/* partial_inplace */
+	 0,			/* src_mask */
+	 0,			/* dst_mask */
+	 false),		/* pcrel_offset */
+
+  HOWTO (R_ARM_AMP_VCALL9,	/* type */
+	 1,			/* rightshift */
+	 1,			/* size (0 = byte, 1 = short, 2 = long) */
+	 8,			/* bitsize */
+	 true,			/* pc_relative */
+	 0,			/* bitpos */
+	 complain_overflow_signed,	/* complain_on_overflow */
+	 bfd_elf_generic_reloc,	/* special_function */
+	 "R_ARM_AMP_VCALL9",	/* name */
+	 false,			/* partial_inplace */
+	 0x000000ff,		/* src_mask */
+	 0x000000ff,		/* dst_mask */
+	 true),			/* pcrel_offset */
+
+  /* 12 bit pc relative */
+  HOWTO (R_ARM_THM_PC11,	/* type */
+	 1,			/* rightshift */
+	 1,			/* size (0 = byte, 1 = short, 2 = long) */
+	 11,			/* bitsize */
+	 true,			/* pc_relative */
+	 0,			/* bitpos */
+	 complain_overflow_signed,	/* complain_on_overflow */
+	 bfd_elf_generic_reloc,	/* special_function */
+	 "R_ARM_THM_PC11",	/* name */
+	 false,			/* partial_inplace */
+	 0x000007ff,		/* src_mask */
+	 0x000007ff,		/* dst_mask */
+	 true),			/* pcrel_offset */
+
+  /* 12 bit pc relative */
+  HOWTO (R_ARM_THM_PC9,		/* type */
+	 1,			/* rightshift */
+	 1,			/* size (0 = byte, 1 = short, 2 = long) */
+	 8,			/* bitsize */
+	 true,			/* pc_relative */
+	 0,			/* bitpos */
+	 complain_overflow_signed,	/* complain_on_overflow */
+	 bfd_elf_generic_reloc,	/* special_function */
+	 "R_ARM_THM_PC9",	/* name */
+	 false,			/* partial_inplace */
+	 0x000000ff,		/* src_mask */
+	 0x000000ff,		/* dst_mask */
+	 true),			/* pcrel_offset */
+
+  /* GNU extension to record C++ vtable hierarchy */
+  HOWTO (R_ARM_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_ARM_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_ARM_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_ARM_GNU_VTENTRY",   /* name */
+         false,                 /* partial_inplace */
+         0,                     /* src_mask */
+         0,                     /* dst_mask */
+         false),                /* pcrel_offset */
+ 
+
+  HOWTO (R_ARM_RREL32,		/* type */
+	 0,			/* rightshift */
+	 0,			/* size (0 = byte, 1 = short, 2 = long) */
+	 0,			/* bitsize */
+	 false,			/* pc_relative */
+	 0,			/* bitpos */
+	 complain_overflow_dont,	/* complain_on_overflow */
+	 bfd_elf_generic_reloc,	/* special_function */
+	 "R_ARM_RREL32",	/* name */
+	 false,			/* partial_inplace */
+	 0,			/* src_mask */
+	 0,			/* dst_mask */
+	 false),		/* pcrel_offset */
+
+  HOWTO (R_ARM_RABS32,		/* type */
+	 0,			/* rightshift */
+	 0,			/* size (0 = byte, 1 = short, 2 = long) */
+	 0,			/* bitsize */
+	 false,			/* pc_relative */
+	 0,			/* bitpos */
+	 complain_overflow_dont,	/* complain_on_overflow */
+	 bfd_elf_generic_reloc,	/* special_function */
+	 "R_ARM_RABS32",	/* name */
+	 false,			/* partial_inplace */
+	 0,			/* src_mask */
+	 0,			/* dst_mask */
+	 false),		/* pcrel_offset */
+
+  HOWTO (R_ARM_RPC24,		/* type */
+	 0,			/* rightshift */
+	 0,			/* size (0 = byte, 1 = short, 2 = long) */
+	 0,			/* bitsize */
+	 false,			/* pc_relative */
+	 0,			/* bitpos */
+	 complain_overflow_dont,	/* complain_on_overflow */
+	 bfd_elf_generic_reloc,	/* special_function */
+	 "R_ARM_RPC24",		/* name */
+	 false,			/* partial_inplace */
+	 0,			/* src_mask */
+	 0,			/* dst_mask */
+	 false),		/* pcrel_offset */
+
+  HOWTO (R_ARM_RBASE,		/* type */
+	 0,			/* rightshift */
+	 0,			/* size (0 = byte, 1 = short, 2 = long) */
+	 0,			/* bitsize */
+	 false,			/* pc_relative */
+	 0,			/* bitpos */
+	 complain_overflow_dont,	/* complain_on_overflow */
+	 bfd_elf_generic_reloc,	/* special_function */
+	 "R_ARM_RBASE",		/* name */
+	 false,			/* partial_inplace */
+	 0,			/* src_mask */
+	 0,			/* dst_mask */
+	 false),		/* pcrel_offset */
+
+};
+
+static void
+elf32_arm_info_to_howto (abfd, bfd_reloc, elf_reloc)
+     bfd *abfd;
+     arelent *bfd_reloc;
+     Elf32_Internal_Rela *elf_reloc;
+{
+  unsigned int r_type;
+
+  r_type = ELF32_R_TYPE (elf_reloc->r_info);
+  /* fixme: need range test */
+  /* BFD_ASSERT (r_type < (unsigned int) R_ELF32_ARM_MAX); */
+  bfd_reloc->howto = &elf32_arm_howto_table[r_type];
+}
+
+struct elf32_arm_reloc_map
+  {
+    bfd_reloc_code_real_type bfd_reloc_val;
+    unsigned char elf_reloc_val;
+  };
+
+static const struct elf32_arm_reloc_map elf32_arm_reloc_map[] =
+{
+  {BFD_RELOC_NONE, R_ARM_NONE,},
+  {BFD_RELOC_ARM_PCREL_BRANCH, R_ARM_PC24,},
+  {BFD_RELOC_32, R_ARM_ABS32,},
+  {BFD_RELOC_32_PCREL, R_ARM_REL32,},
+  {BFD_RELOC_8, R_ARM_ABS8,},
+  {BFD_RELOC_16, R_ARM_ABS16,},
+  {BFD_RELOC_ARM_OFFSET_IMM, R_ARM_ABS12,},
+  {BFD_RELOC_ARM_THUMB_OFFSET, R_ARM_THM_ABS5,},
+  {BFD_RELOC_THUMB_PCREL_BRANCH23, R_ARM_THM_PC22,},
+  {BFD_RELOC_VTABLE_INHERIT, R_ARM_GNU_VTINHERIT },
+  {BFD_RELOC_VTABLE_ENTRY, R_ARM_GNU_VTENTRY },
+  {BFD_RELOC_NONE, R_ARM_SBREL32,},
+  {BFD_RELOC_NONE, R_ARM_AMP_VCALL9,},
+  {BFD_RELOC_THUMB_PCREL_BRANCH12, R_ARM_THM_PC11,},
+  {BFD_RELOC_THUMB_PCREL_BRANCH9, R_ARM_THM_PC9,}
+};
+
+static reloc_howto_type *
+elf32_arm_reloc_type_lookup (abfd, code)
+     bfd * abfd;
+     bfd_reloc_code_real_type code;
+{
+  unsigned int i;
+
+  for (i = 0;
+     i < sizeof (elf32_arm_reloc_map) / sizeof (struct elf32_arm_reloc_map);
+       i++)
+    {
+      if (elf32_arm_reloc_map[i].bfd_reloc_val == code)
+	return & elf32_arm_howto_table[elf32_arm_reloc_map[i].elf_reloc_val];
+    }
+
+  return NULL;
+}
+
+#define bfd_elf32_arm_allocate_interworking_sections \
+	bfd_elf32_arm_oabi_allocate_interworking_sections
+#define bfd_elf32_arm_get_bfd_for_interworking \
+	bfd_elf32_arm_oabi_get_bfd_for_interworking
+#define bfd_elf32_arm_process_before_allocation \
+	bfd_elf32_arm_oabi_process_before_allocation
+
+#include "elf32-arm.h"