/* Infineon XC16X-specific support for 16-bit ELF.
- Copyright 2006 Free Software Foundation, Inc.
- Contributed by KPIT Cummins Infosystems
+ Copyright (C) 2006-2019 Free Software Foundation, Inc.
+ Contributed by KPIT Cummins Infosystems
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
+ 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,
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
- Foundation, 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
+ Foundation, 51 Franklin Street - Fifth Floor, Boston,
+ MA 02110-1301, USA. */
-#include "bfd.h"
#include "sysdep.h"
+#include "bfd.h"
#include "libbfd.h"
#include "elf-bfd.h"
#include "elf/xc16x.h"
-#include "elf/dwarf2.h"
+#include "dwarf2.h"
#include "libiberty.h"
static reloc_howto_type xc16x_elf_howto_table [] =
/* This reloc does nothing. */
HOWTO (R_XC16X_NONE, /* type */
0, /* rightshift */
- 1, /* size (0 = byte, 1 = short, 2 = long) */
- 16, /* bitsize */
+ 3, /* size (0 = byte, 1 = short, 2 = long) */
+ 0, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
- complain_overflow_bitfield, /* complain_on_overflow */
+ complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_XC16X_NONE", /* name */
FALSE, /* partial_inplace */
FALSE), /* pcrel_offset */
HOWTO (R_XC16X_ABS_32, /* 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_XC16X_ABS_32", /* name */
- TRUE, /* partial_inplace */
- 0x00000000, /* src_mask */
- 0xffffffff, /* dst_mask */
- FALSE), /* pcrel_offset */
+ 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_XC16X_ABS_32", /* name */
+ TRUE, /* partial_inplace */
+ 0x00000000, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
/* A PC relative 8 bit relocation. */
/* Relocation regarding page number. */
HOWTO (R_XC16X_PAG, /* type */
- 0, /* rightshift */
- 1, /* size (0 = byte, 1 = short, 2 = long) */
- 16, /* bitsize */
- FALSE, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_signed, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_XC16X_PAG", /* name */
- TRUE, /* partial_inplace */
- 0x00000000, /* src_mask */
- 0x0000ffff, /* dst_mask */
- FALSE), /* pcrel_offset */
+ 0, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_XC16X_PAG", /* name */
+ TRUE, /* partial_inplace */
+ 0x00000000, /* src_mask */
+ 0x0000ffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
/* Relocation regarding page number. */
HOWTO (R_XC16X_POF, /* type */
- 0, /* rightshift */
- 1, /* size (0 = byte, 1 = short, 2 = long) */
- 16, /* bitsize */
- FALSE, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_signed, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_XC16X_POF", /* name */
- TRUE, /* partial_inplace */
- 0x00000000, /* src_mask */
- 0x0000ffff, /* dst_mask */
- FALSE), /* pcrel_offset */
+ 0, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_XC16X_POF", /* name */
+ TRUE, /* partial_inplace */
+ 0x00000000, /* src_mask */
+ 0x0000ffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
/* Relocation regarding segment number. */
HOWTO (R_XC16X_SEG, /* type */
- 0, /* rightshift */
- 1, /* size (0 = byte, 1 = short, 2 = long) */
- 16, /* bitsize */
- FALSE, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_signed, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_XC16X_SEG", /* name */
- TRUE, /* partial_inplace */
- 0x00000000, /* src_mask */
- 0x0000ffff, /* dst_mask */
- FALSE), /* pcrel_offset */
+ 0, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_XC16X_SEG", /* name */
+ TRUE, /* partial_inplace */
+ 0x00000000, /* src_mask */
+ 0x0000ffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
/* Relocation regarding segment offset. */
HOWTO (R_XC16X_SOF, /* type */
- 0, /* rightshift */
- 1, /* size (0 = byte, 1 = short, 2 = long) */
- 16, /* bitsize */
- FALSE, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_signed, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_XC16X_SOF", /* name */
- TRUE, /* partial_inplace */
- 0x00000000, /* src_mask */
- 0x0000ffff, /* dst_mask */
- FALSE) /* pcrel_offset */
+ 0, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_XC16X_SOF", /* name */
+ TRUE, /* partial_inplace */
+ 0x00000000, /* src_mask */
+ 0x0000ffff, /* dst_mask */
+ FALSE) /* pcrel_offset */
};
static const struct xc16x_reloc_map xc16x_reloc_map [] =
{
- { BFD_RELOC_NONE, R_XC16X_NONE },
- { BFD_RELOC_8, R_XC16X_ABS_8 },
- { BFD_RELOC_16, R_XC16X_ABS_16 },
- { BFD_RELOC_32, R_XC16X_ABS_32 },
- { BFD_RELOC_8_PCREL, R_XC16X_8_PCREL },
+ { BFD_RELOC_NONE, R_XC16X_NONE },
+ { BFD_RELOC_8, R_XC16X_ABS_8 },
+ { BFD_RELOC_16, R_XC16X_ABS_16 },
+ { BFD_RELOC_32, R_XC16X_ABS_32 },
+ { BFD_RELOC_8_PCREL, R_XC16X_8_PCREL },
{ BFD_RELOC_XC16X_PAG, R_XC16X_PAG},
{ BFD_RELOC_XC16X_POF, R_XC16X_POF},
{ BFD_RELOC_XC16X_SEG, R_XC16X_SEG},
return NULL;
}
+static reloc_howto_type *
+xc16x_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
+ const char *r_name)
+{
+ unsigned int i;
+
+ for (i = 0; i < ARRAY_SIZE (xc16x_elf_howto_table); i++)
+ if (xc16x_elf_howto_table[i].name != NULL
+ && strcasecmp (xc16x_elf_howto_table[i].name, r_name) == 0)
+ return &xc16x_elf_howto_table[i];
+
+ return NULL;
+}
+
+static reloc_howto_type *
+elf32_xc16x_rtype_to_howto (bfd *abfd ATTRIBUTE_UNUSED, unsigned r_type)
+{
+ if (r_type < ARRAY_SIZE (xc16x_elf_howto_table))
+ return & xc16x_elf_howto_table[r_type];
+
+ return NULL;
+}
+
/* For a particular operand this function is
called to finalise the type of relocation. */
-static void
-elf32_xc16x_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *bfd_reloc,
+static bfd_boolean
+elf32_xc16x_info_to_howto (bfd *abfd, arelent *bfd_reloc,
Elf_Internal_Rela *elf_reloc)
{
unsigned int r;
if (xc16x_elf_howto_table[i].type == r)
{
bfd_reloc->howto = &xc16x_elf_howto_table[i];
- return;
+ return TRUE;
}
- abort ();
+ /* xgettext:c-format */
+ _bfd_error_handler (_("%pB: unsupported relocation type %#x"), abfd, r);
+ bfd_set_error (bfd_error_bad_value);
+ return FALSE;
}
static bfd_reloc_status_type
struct elf_link_hash_entry **sym_hashes;
Elf_Internal_Rela *rel, *relend;
- if (info->relocatable)
- return TRUE;
-
symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
sym_hashes = elf_sym_hashes (input_bfd);
asection *sec;
struct elf_link_hash_entry *h;
bfd_vma relocation;
- bfd_reloc_status_type r;
/* This is a final link. */
r_symndx = ELF32_R_SYM (rel->r_info);
}
else
{
- bfd_boolean unresolved_reloc, warned;
+ bfd_boolean unresolved_reloc, warned, ignored;
RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
r_symndx, symtab_hdr, sym_hashes,
h, sec, relocation,
- unresolved_reloc, warned);
+ unresolved_reloc, warned, ignored);
}
- r = elf32_xc16x_final_link_relocate (r_type, input_bfd, output_bfd,
- input_section,
- contents, rel->r_offset,
- relocation, rel->r_addend,
- info, sec, h == NULL);
+ if (sec != NULL && discarded_section (sec))
+ {
+ /* For relocs against symbols from removed linkonce sections,
+ or sections discarded by a linker script, we just want the
+ section contents cleared. Avoid any special processing. */
+ reloc_howto_type *howto;
+ howto = elf32_xc16x_rtype_to_howto (input_bfd, r_type);
+ RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
+ rel, 1, relend, howto, 0, contents);
+ }
+
+ if (bfd_link_relocatable (info))
+ continue;
+
+ elf32_xc16x_final_link_relocate (r_type, input_bfd, output_bfd,
+ input_section,
+ contents, rel->r_offset,
+ relocation, rel->r_addend,
+ info, sec, h == NULL);
}
return TRUE;
}
-static void
-elf32_xc16x_final_write_processing (bfd *abfd,
- bfd_boolean linker ATTRIBUTE_UNUSED)
+static bfd_boolean
+elf32_xc16x_final_write_processing (bfd *abfd)
{
unsigned long val;
}
elf_elfheader (abfd)->e_flags |= val;
+ return _bfd_elf_final_write_processing (abfd);
}
static unsigned long
elf32_xc16x_mach (flagword flags)
-{
+{
switch (flags)
{
case 0x1000:
- default:
+ default:
return bfd_mach_xc16x;
case 0x1001:
#define ELF_MACHINE_CODE EM_XC16X
#define ELF_MAXPAGESIZE 0x100
-#define TARGET_LITTLE_SYM bfd_elf32_xc16x_vec
+#define TARGET_LITTLE_SYM xc16x_elf32_vec
#define TARGET_LITTLE_NAME "elf32-xc16x"
#define elf_backend_final_write_processing elf32_xc16x_final_write_processing
-#define elf_backend_object_p elf32_xc16x_object_p
+#define elf_backend_object_p elf32_xc16x_object_p
#define elf_backend_can_gc_sections 1
#define bfd_elf32_bfd_reloc_type_lookup xc16x_reloc_type_lookup
+#define bfd_elf32_bfd_reloc_name_lookup xc16x_reloc_name_lookup
#define elf_info_to_howto elf32_xc16x_info_to_howto
#define elf_info_to_howto_rel elf32_xc16x_info_to_howto
-#define elf_backend_relocate_section elf32_xc16x_relocate_section
+#define elf_backend_relocate_section elf32_xc16x_relocate_section
#define elf_backend_rela_normal 1
#include "elf32-target.h"
projects / deliverable / binutils-gdb.git / blobdiff