/* Motorola MCore specific support for 32-bit ELF
- Copyright 1994, 1995, 1999 Free Software Foundation, Inc.
+ Copyright (C) 1994-2020 Free Software Foundation, Inc.
-This file is part of BFD, the Binary File Descriptor library.
+ 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 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.
-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.
+ 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., 51 Franklin Street - Fifth Floor, Boston,
+ MA 02110-1301, USA. */
-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. */
/* This file is based on a preliminary RCE ELF ABI. The
information may not match the final RCE ELF ABI. */
-#include "bfd.h"
#include "sysdep.h"
+#include "bfd.h"
#include "bfdlink.h"
#include "libbfd.h"
#include "elf-bfd.h"
#include "elf/mcore.h"
#include <assert.h>
-#define USE_RELA /* Only USE_REL is actually significant, but this is
- here are a reminder... */
-
-static void mcore_elf_howto_init
- PARAMS ((void));
-static reloc_howto_type * mcore_elf_reloc_type_lookup
- PARAMS ((bfd *, bfd_reloc_code_real_type));
-static void mcore_elf_info_to_howto
- PARAMS ((bfd *, arelent *, Elf32_Internal_Rela *));
-static boolean mcore_elf_set_private_flags
- PARAMS ((bfd *, flagword));
-static boolean mcore_elf_copy_private_bfd_data
- PARAMS ((bfd *, bfd *));
-static boolean mcore_elf_merge_private_bfd_data
- PARAMS ((bfd *, bfd *));
-static bfd_reloc_status_type mcore_elf_unsupported_reloc
- PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
-static boolean mcore_elf_relocate_section
- PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
- Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
+/* RELA relocs are used here... */
+
+/* Function to set whether a module needs the -mrelocatable bit set. */
+
+static bfd_boolean
+mcore_elf_set_private_flags (bfd * abfd, flagword flags)
+{
+ BFD_ASSERT (! elf_flags_init (abfd)
+ || elf_elfheader (abfd)->e_flags == flags);
+
+ elf_elfheader (abfd)->e_flags = flags;
+ elf_flags_init (abfd) = TRUE;
+ return TRUE;
+}
+
+/* Merge backend specific data from an object file to the output
+ object file when linking. */
+
+static bfd_boolean
+mcore_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
+{
+ bfd *obfd = info->output_bfd;
+ flagword old_flags;
+ flagword new_flags;
+
+ /* Check if we have the same endianness. */
+ if (! _bfd_generic_verify_endian_match (ibfd, info))
+ return FALSE;
+
+ if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
+ || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
+ return TRUE;
+
+ new_flags = elf_elfheader (ibfd)->e_flags;
+ old_flags = elf_elfheader (obfd)->e_flags;
+
+ if (! elf_flags_init (obfd))
+ {
+ /* First call, no flags set. */
+ elf_flags_init (obfd) = TRUE;
+ elf_elfheader (obfd)->e_flags = new_flags;
+ }
+ else if (new_flags == old_flags)
+ /* Compatible flags are OK. */
+ ;
+ else
+ {
+ /* FIXME */
+ }
+
+ return TRUE;
+}
+\f
+/* Don't pretend we can deal with unsupported relocs. */
+
+static bfd_reloc_status_type
+mcore_elf_unsupported_reloc (bfd * abfd,
+ arelent * reloc_entry,
+ asymbol * symbol ATTRIBUTE_UNUSED,
+ void * data ATTRIBUTE_UNUSED,
+ asection * input_section ATTRIBUTE_UNUSED,
+ bfd * output_bfd ATTRIBUTE_UNUSED,
+ char ** error_message ATTRIBUTE_UNUSED)
+{
+ BFD_ASSERT (reloc_entry->howto != (reloc_howto_type *)0);
+
+ /* xgettext:c-format */
+ _bfd_error_handler (_("%pB: %s unsupported"),
+ abfd,
+ reloc_entry->howto->name);
+
+ return bfd_reloc_notsupported;
+}
static reloc_howto_type * mcore_elf_howto_table [(int) R_MCORE_max];
/* This reloc does nothing. */
HOWTO (R_MCORE_NONE, /* type */
0, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 32, /* bitsize */
- false, /* pc_relative */
+ 3, /* size (0 = byte, 1 = short, 2 = long) */
+ 0, /* bitsize */
+ FALSE, /* pc_relative */
0, /* bitpos */
- complain_overflow_bitfield, /* complain_on_overflow */
- NULL, /* special_function */
+ complain_overflow_dont, /* complain_on_overflow */
+ NULL, /* special_function */
"R_MCORE_NONE", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0, /* src_mask */
0, /* dst_mask */
- false), /* pcrel_offset */
+ FALSE), /* pcrel_offset */
/* A standard 32 bit relocation. */
HOWTO (R_MCORE_ADDR32, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
- "ADDR32", /* name *//* For compatability with coff/pe port. */
- false, /* partial_inplace */
+ "ADDR32", /* name *//* For compatibility with coff/pe port. */
+ FALSE, /* partial_inplace */
0x0, /* src_mask */
0xffffffff, /* dst_mask */
- false), /* pcrel_offset */
+ FALSE), /* pcrel_offset */
/* 8 bits + 2 zero bits; jmpi/jsri/lrw instructions.
- Should not appear in object files. */
+ Should not appear in object files. */
HOWTO (R_MCORE_PCRELIMM8BY4, /* type */
2, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
8, /* bitsize */
- true, /* pc_relative */
+ TRUE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
mcore_elf_unsupported_reloc, /* special_function */
"R_MCORE_PCRELIMM8BY4",/* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0, /* src_mask */
0, /* dst_mask */
- true), /* pcrel_offset */
+ TRUE), /* pcrel_offset */
- /* bsr/bt/bf/br instructions; 11 bits + 1 zero bit
+ /* bsr/bt/bf/br instructions; 11 bits + 1 zero bit
Span 2k instructions == 4k bytes.
Only useful pieces at the relocated address are the opcode (5 bits) */
HOWTO (R_MCORE_PCRELIMM11BY2,/* type */
1, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
11, /* bitsize */
- true, /* pc_relative */
+ TRUE, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_MCORE_PCRELIMM11BY2",/* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0x0, /* src_mask */
0x7ff, /* dst_mask */
- true), /* pcrel_offset */
+ TRUE), /* pcrel_offset */
- /* 4 bits + 1 zero bit; 'loopt' instruction only; unsupported. */
+ /* 4 bits + 1 zero bit; 'loopt' instruction only; unsupported. */
HOWTO (R_MCORE_PCRELIMM4BY2, /* type */
1, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
4, /* bitsize */
- true, /* pc_relative */
+ TRUE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
mcore_elf_unsupported_reloc,/* special_function */
"R_MCORE_PCRELIMM4BY2",/* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0, /* src_mask */
0, /* dst_mask */
- true), /* pcrel_offset */
+ TRUE), /* pcrel_offset */
- /* 32-bit pc-relative. Eventually this will help support PIC code. */
+ /* 32-bit pc-relative. Eventually this will help support PIC code. */
HOWTO (R_MCORE_PCREL32, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
- true, /* pc_relative */
+ TRUE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_MCORE_PCREL32", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0x0, /* src_mask */
0xffffffff, /* dst_mask */
- true), /* pcrel_offset */
+ TRUE), /* pcrel_offset */
/* Like PCRELIMM11BY2, this relocation indicates that there is a
'jsri' at the specified address. There is a separate relocation
- entry for the literal pool entry that it references, but we
+ entry for the literal pool entry that it references, but we
might be able to change the jsri to a bsr if the target turns out
to be close enough [even though we won't reclaim the literal pool
entry, we'll get some runtime efficiency back]. Note that this
- is a relocation that we are allowed to safely ignore. */
+ is a relocation that we are allowed to safely ignore. */
HOWTO (R_MCORE_PCRELJSR_IMM11BY2,/* type */
1, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
11, /* bitsize */
- true, /* pc_relative */
+ TRUE, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_MCORE_PCRELJSR_IMM11BY2", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0x0, /* src_mask */
0x7ff, /* dst_mask */
- true), /* pcrel_offset */
-
- /* GNU extension to record C++ vtable hierarchy */
+ TRUE), /* pcrel_offset */
+
+ /* GNU extension to record C++ vtable hierarchy. */
HOWTO (R_MCORE_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_MCORE_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_MCORE_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_MCORE_GNU_VTENTRY", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0, /* dst_mask */
- false), /* pcrel_offset */
-
- HOWTO (R_MCORE_RELATIVE, /* 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_MCORE_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_MCORE_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_MCORE_GNU_VTENTRY", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ HOWTO (R_MCORE_RELATIVE, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
- NULL, /* special_function */
- "R_MCORE_RELATIVE", /* name */
- true, /* partial_inplace */
+ NULL, /* special_function */
+ "R_MCORE_RELATIVE", /* name */
+ TRUE, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
- false) /* pcrel_offset */
+ FALSE) /* pcrel_offset */
};
#ifndef NUM_ELEM
\f
/* Initialize the mcore_elf_howto_table, so that linear accesses can be done. */
static void
-mcore_elf_howto_init ()
+mcore_elf_howto_init (void)
{
unsigned int i;
for (i = NUM_ELEM (mcore_elf_howto_raw); i--;)
{
unsigned int type;
-
+
type = mcore_elf_howto_raw[i].type;
-
+
BFD_ASSERT (type < NUM_ELEM (mcore_elf_howto_table));
-
+
mcore_elf_howto_table [type] = & mcore_elf_howto_raw [i];
}
}
-
\f
static reloc_howto_type *
-mcore_elf_reloc_type_lookup (abfd, code)
- bfd * abfd ATTRIBUTE_UNUSED;
- bfd_reloc_code_real_type code;
+mcore_elf_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED,
+ bfd_reloc_code_real_type code)
{
enum elf_mcore_reloc_type mcore_reloc = R_MCORE_NONE;
case BFD_RELOC_MCORE_PCREL_IMM4BY2: mcore_reloc = R_MCORE_PCRELIMM4BY2; break;
case BFD_RELOC_32_PCREL: mcore_reloc = R_MCORE_PCREL32; break;
case BFD_RELOC_MCORE_PCREL_JSR_IMM11BY2: mcore_reloc = R_MCORE_PCRELJSR_IMM11BY2; break;
- case BFD_RELOC_VTABLE_INHERIT: mcore_reloc = R_MCORE_GNU_VTINHERIT; break;
- case BFD_RELOC_VTABLE_ENTRY: mcore_reloc = R_MCORE_GNU_VTENTRY; break;
- case BFD_RELOC_RVA: mcore_reloc = R_MCORE_RELATIVE; break;
+ case BFD_RELOC_VTABLE_INHERIT: mcore_reloc = R_MCORE_GNU_VTINHERIT; break;
+ case BFD_RELOC_VTABLE_ENTRY: mcore_reloc = R_MCORE_GNU_VTENTRY; break;
+ case BFD_RELOC_RVA: mcore_reloc = R_MCORE_RELATIVE; break;
default:
- return (reloc_howto_type *)NULL;
+ return NULL;
}
- if (! mcore_elf_howto_table [R_MCORE_PCRELIMM8BY4]) /* Initialize howto table if needed */
+ if (! mcore_elf_howto_table [R_MCORE_PCRELIMM8BY4])
+ /* Initialize howto table if needed. */
mcore_elf_howto_init ();
return mcore_elf_howto_table [(int) mcore_reloc];
};
-/* Set the howto pointer for a RCE ELF reloc. */
-static void
-mcore_elf_info_to_howto (abfd, cache_ptr, dst)
- bfd * abfd ATTRIBUTE_UNUSED;
- arelent * cache_ptr;
- Elf32_Internal_Rela * dst;
+static reloc_howto_type *
+mcore_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
+ const char *r_name)
{
- if (! mcore_elf_howto_table [R_MCORE_PCRELIMM8BY4]) /* Initialize howto table if needed */
- mcore_elf_howto_init ();
-
- BFD_ASSERT (ELF32_R_TYPE (dst->r_info) < (unsigned int) R_MCORE_max);
-
- cache_ptr->howto = mcore_elf_howto_table [ELF32_R_TYPE (dst->r_info)];
-}
+ unsigned int i;
-/* Function to set whether a module needs the -mrelocatable bit set. */
-static boolean
-mcore_elf_set_private_flags (abfd, flags)
- bfd * abfd;
- flagword flags;
-{
- BFD_ASSERT (! elf_flags_init (abfd)
- || elf_elfheader (abfd)->e_flags == flags);
+ for (i = 0;
+ i < sizeof (mcore_elf_howto_raw) / sizeof (mcore_elf_howto_raw[0]);
+ i++)
+ if (mcore_elf_howto_raw[i].name != NULL
+ && strcasecmp (mcore_elf_howto_raw[i].name, r_name) == 0)
+ return &mcore_elf_howto_raw[i];
- elf_elfheader (abfd)->e_flags = flags;
- elf_flags_init (abfd) = true;
- return true;
+ return NULL;
}
-/* Copy backend specific data from one object module to another. */
-static boolean
-mcore_elf_copy_private_bfd_data (ibfd, obfd)
- bfd * ibfd;
- bfd * obfd;
-{
- if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
- || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
- return true;
-
- BFD_ASSERT (! elf_flags_init (obfd)
- || elf_elfheader (obfd)->e_flags == elf_elfheader (ibfd)->e_flags);
-
- elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags;
- elf_flags_init (obfd) = true;
- return true;
-}
+/* Set the howto pointer for a RCE ELF reloc. */
-/* Merge backend specific data from an object file to the output
- object file when linking. */
-static boolean
-mcore_elf_merge_private_bfd_data (ibfd, obfd)
- bfd * ibfd;
- bfd * obfd;
+static bfd_boolean
+mcore_elf_info_to_howto (bfd * abfd,
+ arelent * cache_ptr,
+ Elf_Internal_Rela * dst)
{
- flagword old_flags;
- flagword new_flags;
-
- /* Check if we have the same endianess */
- if ( ibfd->xvec->byteorder != obfd->xvec->byteorder
- && obfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN)
- {
- (*_bfd_error_handler)
- (_("%s: compiled for a %s endian system and target is %s endian.\n"),
- bfd_get_filename (ibfd),
- bfd_big_endian (ibfd) ? "big" : "little",
- bfd_big_endian (obfd) ? "big" : "little");
-
- bfd_set_error (bfd_error_wrong_format);
- return false;
- }
+ unsigned int r_type;
- if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
- || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
- return true;
+ if (! mcore_elf_howto_table [R_MCORE_PCRELIMM8BY4])
+ /* Initialize howto table if needed. */
+ mcore_elf_howto_init ();
- new_flags = elf_elfheader (ibfd)->e_flags;
- old_flags = elf_elfheader (obfd)->e_flags;
-
- if (! elf_flags_init (obfd)) /* First call, no flags set */
- {
- elf_flags_init (obfd) = true;
- elf_elfheader (obfd)->e_flags = new_flags;
- }
- else if (new_flags == old_flags) /* Compatible flags are ok */
- ;
- else
+ r_type = ELF32_R_TYPE (dst->r_info);
+ if (r_type >= R_MCORE_max)
{
- /* FIXME */
+ /* xgettext:c-format */
+ _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
+ abfd, r_type);
+ bfd_set_error (bfd_error_bad_value);
+ return FALSE;
}
- return true;
+ cache_ptr->howto = mcore_elf_howto_table [r_type];
+ return TRUE;
}
-
-\f
-/* Don't pretend we can deal with unsupported relocs. */
-
-/*ARGSUSED*/
-static bfd_reloc_status_type
-mcore_elf_unsupported_reloc (abfd, reloc_entry, symbol, data, input_section,
- output_bfd, error_message)
- bfd * abfd;
- arelent * reloc_entry;
- asymbol * symbol ATTRIBUTE_UNUSED;
- PTR data ATTRIBUTE_UNUSED;
- asection * input_section ATTRIBUTE_UNUSED;
- bfd * output_bfd ATTRIBUTE_UNUSED;
- char ** error_message ATTRIBUTE_UNUSED;
-{
- BFD_ASSERT (reloc_entry->howto != (reloc_howto_type *)0);
-
- _bfd_error_handler (_("%s: Relocation %s (%d) is not currently supported.\n"),
- bfd_get_filename (abfd),
- reloc_entry->howto->name,
- reloc_entry->howto->type);
-
- return bfd_reloc_notsupported;
-}
-
\f
/* The RELOCATE_SECTION function is called by the ELF backend linker
to handle the relocations for a section.
This function is responsible for adjust the section contents as
necessary, and (if using Rela relocs and generating a
- relocateable output file) adjusting the reloc addend as
+ relocatable output file) adjusting the reloc addend as
necessary.
This function does not have to worry about setting the reloc
The global hash table entry for the global symbols can be found
via elf_sym_hashes (input_bfd).
- When generating relocateable output, this function must handle
+ When generating relocatable output, this function must handle
STB_LOCAL/STT_SECTION symbols specially. The output symbol is
going to be the section symbol corresponding to the output
section, which means that the addend must be adjusted
accordingly. */
-static boolean
-mcore_elf_relocate_section (output_bfd, info, input_bfd, input_section,
- contents, relocs, local_syms, local_sections)
- bfd * output_bfd ATTRIBUTE_UNUSED;
- struct bfd_link_info * info;
- bfd * input_bfd;
- asection * input_section;
- bfd_byte * contents;
- Elf_Internal_Rela * relocs;
- Elf_Internal_Sym * local_syms;
- asection ** local_sections;
+static bfd_boolean
+mcore_elf_relocate_section (bfd * output_bfd,
+ struct bfd_link_info * info,
+ bfd * input_bfd,
+ asection * input_section,
+ bfd_byte * contents,
+ Elf_Internal_Rela * relocs,
+ Elf_Internal_Sym * local_syms,
+ asection ** local_sections)
{
- Elf_Internal_Shdr * symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
+ Elf_Internal_Shdr * symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
struct elf_link_hash_entry ** sym_hashes = elf_sym_hashes (input_bfd);
- Elf_Internal_Rela * rel = relocs;
- Elf_Internal_Rela * relend = relocs + input_section->reloc_count;
- boolean ret = true;
+ Elf_Internal_Rela * rel = relocs;
+ Elf_Internal_Rela * relend = relocs + input_section->reloc_count;
+ bfd_boolean ret = TRUE;
#ifdef DEBUG
- fprintf (stderr,
- "mcore_elf_relocate_section called for %s section %s, %ld relocations%s\n",
- bfd_get_filename (input_bfd),
- bfd_section_name(input_bfd, input_section),
- (long) input_section->reloc_count,
- (info->relocateable) ? " (relocatable)" : "");
+ _bfd_error_handler
+ ("mcore_elf_relocate_section called for %pB section %pA, %u relocations%s",
+ input_bfd,
+ input_section,
+ input_section->reloc_count,
+ (bfd_link_relocatable (info)) ? " (relocatable)" : "");
#endif
if (! mcore_elf_howto_table [R_MCORE_PCRELIMM8BY4]) /* Initialize howto table if needed */
for (; rel < relend; rel++)
{
- enum elf_mcore_reloc_type r_type = (enum elf_mcore_reloc_type) ELF32_R_TYPE (rel->r_info);
- bfd_vma offset = rel->r_offset;
- bfd_vma addend = rel->r_addend;
- bfd_reloc_status_type r = bfd_reloc_other;
- asection * sec = (asection *) 0;
- reloc_howto_type * howto;
- bfd_vma relocation;
- Elf_Internal_Sym * sym = (Elf_Internal_Sym *) 0;
- unsigned long r_symndx;
- struct elf_link_hash_entry * h = (struct elf_link_hash_entry *) 0;
- unsigned short oldinst;
-
- /* Unknown relocation handling */
+ enum elf_mcore_reloc_type r_type = (enum elf_mcore_reloc_type) ELF32_R_TYPE (rel->r_info);
+ bfd_vma offset = rel->r_offset;
+ bfd_vma addend = rel->r_addend;
+ bfd_reloc_status_type r = bfd_reloc_other;
+ asection * sec = NULL;
+ reloc_howto_type * howto;
+ bfd_vma relocation;
+ Elf_Internal_Sym * sym = NULL;
+ unsigned long r_symndx;
+ struct elf_link_hash_entry * h = NULL;
+ unsigned short oldinst = 0;
+
+ /* Unknown relocation handling. */
if ((unsigned) r_type >= (unsigned) R_MCORE_max
|| ! mcore_elf_howto_table [(int)r_type])
{
- _bfd_error_handler (_("%s: Unknown relocation type %d\n"),
- bfd_get_filename (input_bfd),
- (int) r_type);
+ /* xgettext:c-format */
+ _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
+ input_bfd, (int) r_type);
bfd_set_error (bfd_error_bad_value);
- ret = false;
+ ret = FALSE;
continue;
}
-
+
howto = mcore_elf_howto_table [(int) r_type];
r_symndx = ELF32_R_SYM (rel->r_info);
-
- if (info->relocateable)
- {
- /* This is a relocateable 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 (r_symndx < symtab_hdr->sh_info)
- {
- sym = local_syms + r_symndx;
-
- if ((unsigned)ELF_ST_TYPE (sym->st_info) == STT_SECTION)
- {
- sec = local_sections[r_symndx];
- addend = rel->r_addend += sec->output_offset + sym->st_value;
- }
- }
-
-#ifdef DEBUG
- fprintf (stderr, "\ttype = %s (%d), symbol index = %ld, offset = %ld, addend = %ld\n",
- howto->name, (int) r_type, r_symndx, (long) offset, (long) addend);
-#endif
- continue;
- }
-
- /* This is a final link. */
- /* Complain about known relocation that are not yet supported */
+ /* Complain about known relocation that are not yet supported. */
if (howto->special_function == mcore_elf_unsupported_reloc)
{
- _bfd_error_handler (_("%s: Relocation %s (%d) is not currently supported.\n"),
- bfd_get_filename (input_bfd),
- howto->name,
- (int)r_type);
+ /* xgettext:c-format */
+ _bfd_error_handler (_("%pB: %s unsupported"),
+ input_bfd,
+ howto->name);
bfd_set_error (bfd_error_bad_value);
- ret = false;
+ ret = FALSE;
continue;
}
{
sym = local_syms + r_symndx;
sec = local_sections [r_symndx];
- relocation = (sec->output_section->vma
- + sec->output_offset
- + sym->st_value);
+ relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
+ addend = rel->r_addend;
}
else
{
- h = sym_hashes [r_symndx - symtab_hdr->sh_info];
- if ( h->root.type == bfd_link_hash_defined
- || h->root.type == bfd_link_hash_defweak)
- {
- sec = h->root.u.def.section;
- relocation = (h->root.u.def.value
- + sec->output_section->vma
- + sec->output_offset);
- }
- else if (h->root.type == bfd_link_hash_undefweak)
- relocation = 0;
- else if (info->shared)
- relocation = 0;
- else
- {
- if (! ((*info->callbacks->undefined_symbol)
- (info, h->root.root.string, input_bfd,
- input_section, rel->r_offset, true)))
- return false;
+ bfd_boolean unresolved_reloc, warned, ignored;
- ret = false;
- continue;
- }
+ RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
+ r_symndx, symtab_hdr, sym_hashes,
+ h, sec, relocation,
+ unresolved_reloc, warned, ignored);
}
+ if (sec != NULL && discarded_section (sec))
+ RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
+ rel, 1, relend, howto, 0, contents);
+
+ if (bfd_link_relocatable (info))
+ continue;
+
switch (r_type)
{
default:
case R_MCORE_PCRELJSR_IMM11BY2:
oldinst = bfd_get_16 (input_bfd, contents + offset);
#define MCORE_INST_BSR 0xF800
- bfd_put_16 (input_bfd, MCORE_INST_BSR, contents + offset);
+ bfd_put_16 (input_bfd, (bfd_vma) MCORE_INST_BSR, contents + offset);
break;
}
-
#ifdef DEBUG
fprintf (stderr, "\ttype = %s (%d), symbol index = %ld, offset = %ld, addend = %ld\n",
howto->name, r_type, r_symndx, (long) offset, (long) addend);
if (r != bfd_reloc_ok && r_type == R_MCORE_PCRELJSR_IMM11BY2)
{
/* Wasn't ok, back it out and give up. */
- bfd_put_16 (input_bfd, oldinst, contents + offset);
+ bfd_put_16 (input_bfd, (bfd_vma) oldinst, contents + offset);
r = bfd_reloc_ok;
}
-
+
if (r != bfd_reloc_ok)
{
- ret = false;
-
+ ret = FALSE;
+
switch (r)
{
default:
const char * name;
if (h != NULL)
- name = h->root.root.string;
+ name = NULL;
else
{
name = bfd_elf_string_from_elf_section
(input_bfd, symtab_hdr->sh_link, sym->st_name);
-
+
if (name == NULL)
break;
if (* name == '\0')
- name = bfd_section_name (input_bfd, sec);
+ name = bfd_section_name (sec);
}
(*info->callbacks->reloc_overflow)
- (info, name, howto->name, (bfd_vma) 0, input_bfd, input_section,
- offset);
+ (info, (h ? &h->root : NULL), name, howto->name,
+ (bfd_vma) 0, input_bfd, input_section, offset);
}
break;
}
relocation. */
static asection *
-mcore_elf_gc_mark_hook (abfd, info, rel, h, sym)
- bfd * abfd;
- struct bfd_link_info * info ATTRIBUTE_UNUSED;
- Elf_Internal_Rela * rel;
- struct elf_link_hash_entry * h;
- Elf_Internal_Sym * sym;
+mcore_elf_gc_mark_hook (asection *sec,
+ struct bfd_link_info *info,
+ Elf_Internal_Rela *rel,
+ struct elf_link_hash_entry *h,
+ Elf_Internal_Sym *sym)
{
if (h != NULL)
- {
- switch (ELF32_R_TYPE (rel->r_info))
- {
- case R_MCORE_GNU_VTINHERIT:
- case R_MCORE_GNU_VTENTRY:
- break;
-
- default:
- switch (h->root.type)
- {
- case bfd_link_hash_defined:
- case bfd_link_hash_defweak:
- return h->root.u.def.section;
-
- case bfd_link_hash_common:
- return h->root.u.c.p->section;
-
- default:
- break;
- }
- }
- }
- else
- {
- if (!(elf_bad_symtab (abfd)
- && ELF_ST_BIND (sym->st_info) != STB_LOCAL)
- && ! ((sym->st_shndx <= 0 || sym->st_shndx >= SHN_LORESERVE)
- && sym->st_shndx != SHN_COMMON))
- {
- return bfd_section_from_elf_index (abfd, sym->st_shndx);
- }
- }
-
- return NULL;
-}
-
-/* Update the got entry reference counts for the section being removed. */
-
-static boolean
-mcore_elf_gc_sweep_hook (abfd, info, sec, relocs)
- bfd * abfd ATTRIBUTE_UNUSED;
- struct bfd_link_info * info ATTRIBUTE_UNUSED;
- asection * sec ATTRIBUTE_UNUSED;
- const Elf_Internal_Rela * relocs ATTRIBUTE_UNUSED;
-{
- return true;
+ switch (ELF32_R_TYPE (rel->r_info))
+ {
+ case R_MCORE_GNU_VTINHERIT:
+ case R_MCORE_GNU_VTENTRY:
+ return NULL;
+ }
+
+ return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
}
/* Look through the relocs for a section during the first phase.
Since we don't do .gots or .plts, we just need to consider the
virtual table relocs for gc. */
-
-static boolean
-mcore_elf_check_relocs (abfd, info, sec, relocs)
- bfd * abfd;
- struct bfd_link_info * info;
- asection * sec;
- const Elf_Internal_Rela * relocs;
+
+static bfd_boolean
+mcore_elf_check_relocs (bfd * abfd,
+ struct bfd_link_info * info,
+ asection * sec,
+ const Elf_Internal_Rela * relocs)
{
- Elf_Internal_Shdr * symtab_hdr;
+ Elf_Internal_Shdr * symtab_hdr;
struct elf_link_hash_entry ** sym_hashes;
- struct elf_link_hash_entry ** sym_hashes_end;
- const Elf_Internal_Rela * rel;
- const Elf_Internal_Rela * rel_end;
-
- if (info->relocateable)
- return true;
-
+ const Elf_Internal_Rela * rel;
+ const Elf_Internal_Rela * rel_end;
+
+ if (bfd_link_relocatable (info))
+ return TRUE;
+
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;
-
+
rel_end = relocs + sec->reloc_count;
-
+
for (rel = relocs; rel < rel_end; rel++)
{
struct elf_link_hash_entry * h;
unsigned long r_symndx;
-
+
r_symndx = ELF32_R_SYM (rel->r_info);
-
+
if (r_symndx < symtab_hdr->sh_info)
- h = NULL;
+ h = NULL;
else
- h = sym_hashes [r_symndx - symtab_hdr->sh_info];
-
+ {
+ h = sym_hashes [r_symndx - symtab_hdr->sh_info];
+ while (h->root.type == bfd_link_hash_indirect
+ || h->root.type == bfd_link_hash_warning)
+ h = (struct elf_link_hash_entry *) h->root.u.i.link;
+ }
+
switch (ELF32_R_TYPE (rel->r_info))
- {
- /* This relocation describes the C++ object vtable hierarchy.
- Reconstruct it for later use during GC. */
- case R_MCORE_GNU_VTINHERIT:
- if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
- return false;
- break;
-
- /* This relocation describes which C++ vtable entries are actually
- used. Record for later use during GC. */
- case R_MCORE_GNU_VTENTRY:
- if (!_bfd_elf32_gc_record_vtentry (abfd, sec, h, rel->r_addend))
- return false;
- break;
- }
+ {
+ /* This relocation describes the C++ object vtable hierarchy.
+ Reconstruct it for later use during GC. */
+ case R_MCORE_GNU_VTINHERIT:
+ if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
+ return FALSE;
+ break;
+
+ /* This relocation describes which C++ vtable entries are actually
+ used. Record for later use during GC. */
+ case R_MCORE_GNU_VTENTRY:
+ if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
+ return FALSE;
+ break;
+ }
}
-
- return true;
+
+ return TRUE;
}
-#define TARGET_BIG_SYM bfd_elf32_mcore_big_vec
+static const struct bfd_elf_special_section mcore_elf_special_sections[]=
+{
+ { STRING_COMMA_LEN (".ctors"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
+ { STRING_COMMA_LEN (".dtors"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
+ { NULL, 0, 0, 0, 0 }
+};
+
+#define TARGET_BIG_SYM mcore_elf32_be_vec
#define TARGET_BIG_NAME "elf32-mcore-big"
-#define TARGET_LITTLE_SYM bfd_elf32_mcore_little_vec
-#define TARGET_LITTLE_NAME "elf32-mcore-little"
+#define TARGET_LITTLE_SYM mcore_elf32_le_vec
+#define TARGET_LITTLE_NAME "elf32-mcore-little"
#define ELF_ARCH bfd_arch_mcore
#define ELF_MACHINE_CODE EM_MCORE
#define elf_info_to_howto mcore_elf_info_to_howto
#define elf_info_to_howto_rel NULL
-
-#define bfd_elf32_bfd_copy_private_bfd_data mcore_elf_copy_private_bfd_data
#define bfd_elf32_bfd_merge_private_bfd_data mcore_elf_merge_private_bfd_data
#define bfd_elf32_bfd_set_private_flags mcore_elf_set_private_flags
#define bfd_elf32_bfd_reloc_type_lookup mcore_elf_reloc_type_lookup
+#define bfd_elf32_bfd_reloc_name_lookup mcore_elf_reloc_name_lookup
#define elf_backend_relocate_section mcore_elf_relocate_section
#define elf_backend_gc_mark_hook mcore_elf_gc_mark_hook
-#define elf_backend_gc_sweep_hook mcore_elf_gc_sweep_hook
-#define elf_backend_check_relocs mcore_elf_check_relocs
+#define elf_backend_check_relocs mcore_elf_check_relocs
+#define elf_backend_special_sections mcore_elf_special_sections
#define elf_backend_can_gc_sections 1
+#define elf_backend_rela_normal 1
#include "elf32-target.h"
projects / deliverable / binutils-gdb.git / blobdiff