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authorRichard Henderson <rth@redhat.com>1999-05-03 07:29:06 +0000
committerRichard Henderson <rth@redhat.com>1999-05-03 07:29:06 +0000
commit860acaebec6b57ce27e244cc02a58e6651a4b6c3 (patch)
treeeff5420756a4bd56b40b74c2b828b261f327610b /bfd/elfarm-oabi.c
parentf9c53ad2d7cb541cbe821d645b90437ac063e5db (diff)
downloadgdb-860acaebec6b57ce27e244cc02a58e6651a4b6c3.tar.gz
Initial revision
Diffstat (limited to 'bfd/elfarm-oabi.c')
-rw-r--r--bfd/elfarm-oabi.c381
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"