/* picoJava specific support for 32-bit ELF
- Copyright 1999, 2000 Free Software Foundation, Inc.
+ Copyright (C) 1999-2020 Free Software Foundation, Inc.
Contributed by Steve Chamberlan of Transmeta (sac@pobox.com).
-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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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., 51 Franklin Street - Fifth Floor, Boston,
+ MA 02110-1301, USA. */
-#include "bfd.h"
#include "sysdep.h"
+#include "bfd.h"
#include "bfdlink.h"
#include "libbfd.h"
#include "elf-bfd.h"
#include "elf/pj.h"
-static bfd_reloc_status_type pj_elf_reloc
- PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
-static reloc_howto_type *pj_elf_reloc_type_lookup
- PARAMS ((bfd *, bfd_reloc_code_real_type));
-static void pj_elf_info_to_howto
- PARAMS ((bfd *, arelent *, Elf_Internal_Rela *));
-static void pj_elf_final_write_processing
- PARAMS ((bfd *, boolean));
+/* This function is used for normal relocs. This is like the COFF
+ function, and is almost certainly incorrect for other ELF targets. */
+
+static bfd_reloc_status_type
+pj_elf_reloc (bfd *abfd,
+ arelent *reloc_entry,
+ asymbol *symbol_in,
+ void * data,
+ asection *input_section,
+ bfd *output_bfd,
+ char **error_message ATTRIBUTE_UNUSED)
+{
+ unsigned long insn;
+ bfd_vma sym_value;
+ enum elf_pj_reloc_type r_type;
+ bfd_vma addr = reloc_entry->address;
+ bfd_byte *hit_data = addr + (bfd_byte *) data;
+
+ r_type = (enum elf_pj_reloc_type) reloc_entry->howto->type;
+
+ if (output_bfd != NULL)
+ {
+ /* Partial linking--do nothing. */
+ reloc_entry->address += input_section->output_offset;
+ return bfd_reloc_ok;
+ }
+
+ if (symbol_in != NULL
+ && (symbol_in->flags & BSF_WEAK) == 0
+ && bfd_is_und_section (symbol_in->section))
+ return bfd_reloc_undefined;
+
+ if (bfd_is_com_section (symbol_in->section))
+ sym_value = 0;
+ else
+ sym_value = (symbol_in->value +
+ symbol_in->section->output_section->vma +
+ symbol_in->section->output_offset);
+
+ switch (r_type)
+ {
+ case R_PJ_DATA_DIR32:
+ insn = bfd_get_32 (abfd, hit_data);
+ insn += sym_value + reloc_entry->addend;
+ bfd_put_32 (abfd, (bfd_vma) insn, hit_data);
+ break;
+
+ /* Relocations in code are always bigendian, no matter what the
+ data endianness is. */
+
+ case R_PJ_CODE_DIR32:
+ insn = bfd_getb32 (hit_data);
+ insn += sym_value + reloc_entry->addend;
+ bfd_putb32 ((bfd_vma) insn, hit_data);
+ break;
+
+ case R_PJ_CODE_REL16:
+ insn = bfd_getb16 (hit_data);
+ insn += sym_value + reloc_entry->addend
+ - (input_section->output_section->vma
+ + input_section->output_offset);
+ bfd_putb16 ((bfd_vma) insn, hit_data);
+ break;
+ case R_PJ_CODE_LO16:
+ insn = bfd_getb16 (hit_data);
+ insn += sym_value + reloc_entry->addend;
+ bfd_putb16 ((bfd_vma) insn, hit_data);
+ break;
+
+ case R_PJ_CODE_HI16:
+ insn = bfd_getb16 (hit_data);
+ insn += (sym_value + reloc_entry->addend) >> 16;
+ bfd_putb16 ((bfd_vma) insn, hit_data);
+ break;
+
+ default:
+ abort ();
+ break;
+ }
+
+ return bfd_reloc_ok;
+}
static reloc_howto_type pj_elf_howto_table[] =
{
/* No relocation. */
HOWTO (R_PJ_NONE, /* type */
0, /* rightshift */
- 0, /* size (0 = byte, 1 = short, 2 = long) */
+ 3, /* size (0 = byte, 1 = short, 2 = long) */
0, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
pj_elf_reloc, /* special_function */
"R_PJ_NONE", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0, /* src_mask */
0, /* dst_mask */
- false), /* pcrel_offset */
+ FALSE), /* pcrel_offset */
- /* 32 bit absolute relocation. Setting partial_inplace to true and
+ /* 32 bit absolute relocation. Setting partial_inplace to TRUE and
src_mask to a non-zero value is similar to the COFF toolchain. */
- HOWTO (R_PJ_DATA_DIR32, /* type */
+ HOWTO (R_PJ_DATA_DIR32, /* 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 */
pj_elf_reloc, /* special_function */
"R_PJ_DIR32", /* name */
- true, /* partial_inplace */
+ TRUE, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
- false), /* pcrel_offset */
+ FALSE), /* pcrel_offset */
/* 32 bit PC relative relocation. */
- HOWTO (R_PJ_CODE_REL32, /* type */
+ HOWTO (R_PJ_CODE_REL32, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
- true, /* pc_relative */
+ TRUE, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
pj_elf_reloc, /* special_function */
"R_PJ_REL32", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0, /* src_mask */
0xffffffff, /* dst_mask */
- true), /* pcrel_offset */
+ TRUE), /* pcrel_offset */
/* 16 bit PC relative relocation. */
- HOWTO (R_PJ_CODE_REL16, /* type */
+ HOWTO (R_PJ_CODE_REL16, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
- true, /* pc_relative */
+ TRUE, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overf6w */
pj_elf_reloc, /* special_function */
"R_PJ_REL16", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0xffff, /* src_mask */
0xffff, /* dst_mask */
- true), /* pcrel_offset */
+ TRUE), /* pcrel_offset */
EMPTY_HOWTO (4),
EMPTY_HOWTO (5),
HOWTO (R_PJ_CODE_DIR32, /* 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 */
pj_elf_reloc, /* special_function */
"R_PJ_CODE_DIR32", /* name */
- true, /* partial_inplace */
+ TRUE, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
- false), /* pcrel_offset */
+ FALSE), /* pcrel_offset */
EMPTY_HOWTO (7),
EMPTY_HOWTO (8),
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_unsigned, /* complain_on_overflow */
pj_elf_reloc, /* special_function */
"R_PJ_LO16", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0xffff, /* src_mask */
0xffff, /* dst_mask */
- true), /* pcrel_offset */
+ TRUE), /* pcrel_offset */
HOWTO (R_PJ_CODE_HI16, /* type */
16, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_unsigned, /* complain_on_overflow */
pj_elf_reloc, /* special_function */
"R_PJ_HI16", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0xffff, /* src_mask */
0xffff, /* dst_mask */
- true), /* pcrel_offset */
-
- /* GNU extension to record C++ vtable hierarchy */
- HOWTO (R_PJ_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_PJ_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_PJ_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_PJ_GNU_VTENTRY", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0, /* dst_mask */
- false), /* pcrel_offset */
-
-};
-
-/* This function is used for normal relocs. This is like the COFF
- function, and is almost certainly incorrect for other ELF targets. */
-
-static bfd_reloc_status_type
-pj_elf_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd,
- error_message)
- bfd *abfd;
- arelent *reloc_entry;
- asymbol *symbol_in;
- PTR data;
- asection *input_section;
- bfd *output_bfd;
- char **error_message ATTRIBUTE_UNUSED;
-{
- unsigned long insn;
- bfd_vma sym_value;
- enum elf_pj_reloc_type r_type;
- bfd_vma addr = reloc_entry->address;
- bfd_byte *hit_data = addr + (bfd_byte *) data;
+ TRUE), /* pcrel_offset */
- r_type = (enum elf_pj_reloc_type) reloc_entry->howto->type;
-
- if (output_bfd != NULL)
- {
- /* Partial linking--do nothing. */
- reloc_entry->address += input_section->output_offset;
- return bfd_reloc_ok;
- }
-
- if (symbol_in != NULL
- && bfd_is_und_section (symbol_in->section))
- return bfd_reloc_undefined;
-
- if (bfd_is_com_section (symbol_in->section))
- sym_value = 0;
- else
- sym_value = (symbol_in->value +
- symbol_in->section->output_section->vma +
- symbol_in->section->output_offset);
-
- switch (r_type)
- {
- case R_PJ_DATA_DIR32:
- insn = bfd_get_32 (abfd, hit_data);
- insn += sym_value + reloc_entry->addend;
- bfd_put_32 (abfd, insn, hit_data);
- break;
-
- /* Relocations in code are always bigendian, no matter what the
- data endianness is. */
-
- case R_PJ_CODE_DIR32:
- insn = bfd_getb32 (hit_data);
- insn += sym_value + reloc_entry->addend;
- bfd_putb32 (insn, hit_data);
- break;
-
- case R_PJ_CODE_REL16:
- insn = bfd_getb16 (hit_data);
- insn += sym_value + reloc_entry->addend
- - (input_section->output_section->vma
- + input_section->output_offset);
- bfd_putb16 (insn, hit_data);
- break;
- case R_PJ_CODE_LO16:
- insn = bfd_getb16 (hit_data);
- insn += sym_value + reloc_entry->addend;
- bfd_putb16 (insn, hit_data);
- break;
-
- case R_PJ_CODE_HI16:
- insn = bfd_getb16 (hit_data);
- insn += (sym_value + reloc_entry->addend) >> 16;
- bfd_putb16 (insn, hit_data);
- break;
-
- default:
- abort ();
- break;
- }
+ /* GNU extension to record C++ vtable hierarchy. */
+ HOWTO (R_PJ_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_PJ_GNU_VTINHERIT", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0, /* dst_mask */
+ FALSE), /* pcrel_offset */
- return bfd_reloc_ok;
-}
+ /* GNU extension to record C++ vtable member usage. */
+ HOWTO (R_PJ_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_PJ_GNU_VTENTRY", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0, /* dst_mask */
+ FALSE), /* pcrel_offset */
+};
/* This structure is used to map BFD reloc codes to PJ ELF relocs. */
static const struct elf_reloc_map pj_reloc_map[] =
{
- { BFD_RELOC_NONE, R_PJ_NONE },
- { BFD_RELOC_32, R_PJ_DATA_DIR32 },
- { BFD_RELOC_PJ_CODE_DIR16, R_PJ_CODE_DIR16 },
- { BFD_RELOC_PJ_CODE_DIR32, R_PJ_CODE_DIR32 },
- { BFD_RELOC_PJ_CODE_LO16, R_PJ_CODE_LO16 },
- { BFD_RELOC_PJ_CODE_HI16, R_PJ_CODE_HI16 },
- { BFD_RELOC_PJ_CODE_REL32, R_PJ_CODE_REL32 },
- { BFD_RELOC_PJ_CODE_REL16, R_PJ_CODE_REL16 },
+ { BFD_RELOC_NONE, R_PJ_NONE },
+ { BFD_RELOC_32, R_PJ_DATA_DIR32 },
+ { BFD_RELOC_PJ_CODE_DIR16, R_PJ_CODE_DIR16 },
+ { BFD_RELOC_PJ_CODE_DIR32, R_PJ_CODE_DIR32 },
+ { BFD_RELOC_PJ_CODE_LO16, R_PJ_CODE_LO16 },
+ { BFD_RELOC_PJ_CODE_HI16, R_PJ_CODE_HI16 },
+ { BFD_RELOC_PJ_CODE_REL32, R_PJ_CODE_REL32 },
+ { BFD_RELOC_PJ_CODE_REL16, R_PJ_CODE_REL16 },
{ BFD_RELOC_VTABLE_INHERIT, R_PJ_GNU_VTINHERIT },
{ BFD_RELOC_VTABLE_ENTRY, R_PJ_GNU_VTENTRY },
};
corresponding PJ ELf reloc. */
static reloc_howto_type *
-pj_elf_reloc_type_lookup (abfd, code)
- bfd *abfd ATTRIBUTE_UNUSED;
- bfd_reloc_code_real_type code;
+pj_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
+ bfd_reloc_code_real_type code)
{
unsigned int i;
for (i = 0; i < sizeof (pj_reloc_map) / sizeof (struct elf_reloc_map); i++)
- {
- if (pj_reloc_map[i].bfd_reloc_val == code)
- return &pj_elf_howto_table[(int) pj_reloc_map[i].elf_reloc_val];
- }
+ if (pj_reloc_map[i].bfd_reloc_val == code)
+ return & pj_elf_howto_table[(int) pj_reloc_map[i].elf_reloc_val];
+
+ return NULL;
+}
+
+static reloc_howto_type *
+pj_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
+ const char *r_name)
+{
+ unsigned int i;
+
+ for (i = 0;
+ i < sizeof (pj_elf_howto_table) / sizeof (pj_elf_howto_table[0]);
+ i++)
+ if (pj_elf_howto_table[i].name != NULL
+ && strcasecmp (pj_elf_howto_table[i].name, r_name) == 0)
+ return &pj_elf_howto_table[i];
return NULL;
}
/* Given an ELF reloc, fill in the howto field of a relent. */
-static void
-pj_elf_info_to_howto (abfd, cache_ptr, dst)
- bfd *abfd ATTRIBUTE_UNUSED;
- arelent *cache_ptr;
- Elf_Internal_Rela *dst;
+static bfd_boolean
+pj_elf_info_to_howto (bfd *abfd,
+ arelent *cache_ptr,
+ Elf_Internal_Rela *dst)
{
unsigned int r;
r = ELF32_R_TYPE (dst->r_info);
- BFD_ASSERT (r < (unsigned int) R_PJ_max);
+ if (r >= R_PJ_max)
+ {
+ /* xgettext:c-format */
+ _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
+ abfd, r);
+ bfd_set_error (bfd_error_bad_value);
+ return FALSE;
+ }
cache_ptr->howto = &pj_elf_howto_table[r];
+ return TRUE;
}
/* Take this moment to fill in the special picoJava bits in the
e_flags field. */
-static void
-pj_elf_final_write_processing (abfd, linker)
- bfd *abfd;
- boolean linker ATTRIBUTE_UNUSED;
+static bfd_boolean
+pj_elf_final_write_processing (bfd *abfd)
{
- elf_elfheader (abfd)->e_flags |= EF_PICOJAVA_ARCH;
- elf_elfheader (abfd)->e_flags |= EF_PICOJAVA_GNUCALLS;
+ elf_elfheader (abfd)->e_flags |= EF_PICOJAVA_ARCH;
+ elf_elfheader (abfd)->e_flags |= EF_PICOJAVA_GNUCALLS;
+ return _bfd_elf_final_write_processing (abfd);
}
-#define TARGET_BIG_SYM bfd_elf32_pj_vec
+#define TARGET_BIG_SYM pj_elf32_vec
#define TARGET_BIG_NAME "elf32-pj"
-#define TARGET_LITTLE_SYM bfd_elf32_pjl_vec
+#define TARGET_LITTLE_SYM pj_elf32_le_vec
#define TARGET_LITTLE_NAME "elf32-pjl"
#define ELF_ARCH bfd_arch_pj
#define ELF_MACHINE_CODE EM_PJ
#define ELF_MACHINE_ALT1 EM_PJ_OLD
#define ELF_MAXPAGESIZE 0x1000
-#define bfd_elf32_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents
-#define bfd_elf32_bfd_reloc_type_lookup pj_elf_reloc_type_lookup
-#define elf_backend_final_write_processing pj_elf_final_write_processing
-#define elf_info_to_howto pj_elf_info_to_howto
+#define bfd_elf32_bfd_get_relocated_section_contents \
+ bfd_generic_get_relocated_section_contents
+#define bfd_elf32_bfd_reloc_type_lookup pj_elf_reloc_type_lookup
+#define bfd_elf32_bfd_reloc_name_lookup pj_elf_reloc_name_lookup
+#define elf_backend_final_write_processing pj_elf_final_write_processing
+#define elf_info_to_howto pj_elf_info_to_howto
#include "elf32-target.h"
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