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binutils-gdb/bfd/elf32-xc16x.c
Alan Modra 07d6d2b834 BFD whitespace fixes 
Binutils is supposed to use tabs.  In my git config I have
whitespace = indent-with-non-tab,space-before-tab,trailing-space
and I got annoyed enough seeing red in "git diff" output to fix
the problems.

	* doc/header.sed: Trim trailing space when splitting lines.
	* aix386-core.c, * aout-adobe.c, * aout-arm.c, * aout-cris.c,
	* aout-ns32k.c, * aout-target.h, * aout-tic30.c, * aoutf1.h, * aoutx.h,
	* arc-got.h, * arc-plt.def, * arc-plt.h, * archive.c, * archive64.c,
	* archures.c, * armnetbsd.c, * bfd-in.h, * bfd.c, * bfdio.c, * binary.c,
	* bout.c, * cache.c, * cisco-core.c, * coff-alpha.c, * coff-apollo.c,
	* coff-arm.c, * coff-h8300.c, * coff-i386.c, * coff-i860.c,
	* coff-i960.c, * coff-m68k.c, * coff-m88k.c, * coff-mcore.c,
	* coff-mips.c, * coff-ppc.c, * coff-rs6000.c, * coff-sh.c,
	* coff-stgo32.c, * coff-tic4x.c, * coff-tic54x.c, * coff-tic80.c,
	* coff-we32k.c, * coff-x86_64.c, * coff-z80.c, * coff-z8k.c,
	* coff64-rs6000.c, * coffcode.h, * coffgen.c, * cofflink.c,
	* coffswap.h, * compress.c, * corefile.c, * cpu-alpha.c, * cpu-arm.c,
	* cpu-avr.c, * cpu-bfin.c, * cpu-cr16.c, * cpu-cr16c.c, * cpu-crx.c,
	* cpu-d10v.c, * cpu-frv.c, * cpu-ft32.c, * cpu-i370.c, * cpu-i960.c,
	* cpu-ia64-opc.c, * cpu-ip2k.c, * cpu-lm32.c, * cpu-m32r.c,
	* cpu-mcore.c, * cpu-microblaze.c, * cpu-mips.c, * cpu-moxie.c,
	* cpu-mt.c, * cpu-nios2.c, * cpu-ns32k.c, * cpu-or1k.c, * cpu-powerpc.c,
	* cpu-pru.c, * cpu-sh.c, * cpu-spu.c, * cpu-v850.c, * cpu-v850_rh850.c,
	* cpu-xgate.c, * cpu-z80.c, * dwarf1.c, * dwarf2.c, * ecoff.c,
	* ecofflink.c, * ecoffswap.h, * elf-bfd.h, * elf-eh-frame.c,
	* elf-hppa.h, * elf-m10200.c, * elf-m10300.c, * elf-s390-common.c,
	* elf-strtab.c, * elf-vxworks.c, * elf.c, * elf32-am33lin.c,
	* elf32-arc.c, * elf32-arm.c, * elf32-avr.c, * elf32-avr.h,
	* elf32-bfin.c, * elf32-cr16.c, * elf32-cr16c.c, * elf32-cris.c,
	* elf32-crx.c, * elf32-d10v.c, * elf32-d30v.c, * elf32-dlx.c,
	* elf32-epiphany.c, * elf32-fr30.c, * elf32-frv.c, * elf32-ft32.c,
	* elf32-h8300.c, * elf32-hppa.c, * elf32-i386.c, * elf32-i860.c,
	* elf32-i960.c, * elf32-ip2k.c, * elf32-lm32.c, * elf32-m32c.c,
	* elf32-m32r.c, * elf32-m68hc11.c, * elf32-m68hc12.c, * elf32-m68hc1x.c,
	* elf32-m68hc1x.h, * elf32-m68k.c, * elf32-m88k.c, * elf32-mcore.c,
	* elf32-mep.c, * elf32-metag.c, * elf32-microblaze.c, * elf32-mips.c,
	* elf32-moxie.c, * elf32-msp430.c, * elf32-mt.c, * elf32-nds32.c,
	* elf32-nds32.h, * elf32-nios2.c, * elf32-or1k.c, * elf32-pj.c,
	* elf32-ppc.c, * elf32-ppc.h, * elf32-pru.c, * elf32-rl78.c,
	* elf32-rx.c, * elf32-s390.c, * elf32-score.c, * elf32-score.h,
	* elf32-score7.c, * elf32-sh-symbian.c, * elf32-sh.c, * elf32-sh64.c,
	* elf32-sparc.c, * elf32-spu.c, * elf32-tic6x.c, * elf32-tilegx.c,
	* elf32-tilegx.h, * elf32-tilepro.c, * elf32-tilepro.h, * elf32-v850.c,
	* elf32-vax.c, * elf32-wasm32.c, * elf32-xc16x.c, * elf32-xgate.c,
	* elf32-xgate.h, * elf32-xstormy16.c, * elf32-xtensa.c, * elf64-alpha.c,
	* elf64-hppa.c, * elf64-ia64-vms.c, * elf64-mips.c, * elf64-mmix.c,
	* elf64-ppc.c, * elf64-s390.c, * elf64-sh64.c, * elf64-sparc.c,
	* elf64-tilegx.c, * elf64-tilegx.h, * elf64-x86-64.c, * elfcore.h,
	* elflink.c, * elfn32-mips.c, * elfnn-aarch64.c, * elfnn-ia64.c,
	* elfnn-riscv.c, * elfxx-aarch64.c, * elfxx-aarch64.h, * elfxx-ia64.c,
	* elfxx-ia64.h, * elfxx-mips.c, * elfxx-riscv.c, * elfxx-sparc.c,
	* elfxx-tilegx.c, * elfxx-x86.c, * elfxx-x86.h, * freebsd.h, * hash.c,
	* host-aout.c, * hp300hpux.c, * hppabsd-core.c, * hpux-core.c,
	* i386aout.c, * i386linux.c, * i386lynx.c, * i386mach3.c, * i386msdos.c,
	* i386netbsd.c, * ieee.c, * ihex.c, * irix-core.c, * libaout.h,
	* libbfd-in.h, * libbfd.c, * libcoff-in.h, * libnlm.h, * libpei.h,
	* libxcoff.h, * linker.c, * lynx-core.c, * m68k4knetbsd.c,
	* m68klinux.c, * m68knetbsd.c, * m88kmach3.c, * mach-o-aarch64.c,
	* mach-o-arm.c, * mach-o-i386.c, * mach-o-target.c, * mach-o-x86-64.c,
	* mach-o.c, * mach-o.h, * merge.c, * mipsbsd.c, * mmo.c, * netbsd.h,
	* netbsd-core.c, * newsos3.c, * nlm-target.h, * nlm32-ppc.c,
	* nlm32-sparc.c, * nlmcode.h, * ns32k.h, * ns32knetbsd.c, * oasys.c,
	* opncls.c, * pc532-mach.c, * pdp11.c, * pe-arm.c, * pe-i386.c,
	* pe-mcore.c, * pe-mips.c, * pe-x86_64.c, * peXXigen.c, * pef.c,
	* pef.h, * pei-arm.c, * pei-i386.c, * pei-mcore.c, * pei-x86_64.c,
	* peicode.h, * plugin.c, * ppcboot.c, * ptrace-core.c, * reloc.c,
	* riscix.c, * rs6000-core.c, * section.c, * som.c, * som.h,
	* sparclinux.c, * sparcnetbsd.c, * srec.c, * stabs.c, * sunos.c,
	* syms.c, * targets.c, * tekhex.c, * trad-core.c, * vax1knetbsd.c,
	* vaxnetbsd.c, * verilog.c, * versados.c, * vms-alpha.c, * vms-lib.c,
	* vms-misc.c, * wasm-module.c, * wasm-module.h, * xcofflink.c,
	* xsym.c, * xsym.h: Whitespace fixes.
	* bfd-in2.h, * libbfd.h, * libcoff.h: Regenerate.
2017-12-06 17:51:43 +10:30

478 lines
13 KiB
C
Raw Blame History

/* Infineon XC16X-specific support for 16-bit ELF.
Copyright (C) 2006-2017 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 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.
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. */
#include "sysdep.h"
#include "bfd.h"
#include "libbfd.h"
#include "elf-bfd.h"
#include "elf/xc16x.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 */
3, /* 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_XC16X_NONE", /* name */
FALSE, /* partial_inplace */
0, /* src_mask */
0, /* dst_mask */
FALSE), /* pcrel_offset */
/* An 8 bit absolute relocation. */
HOWTO (R_XC16X_ABS_8, /* type */
0, /* rightshift */
0, /* size (0 = byte, 1 = short, 2 = long) */
8, /* bitsize */
FALSE, /* pc_relative */
8, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_XC16X_ABS_8", /* name */
TRUE, /* partial_inplace */
0x0000, /* src_mask */
0x00ff, /* dst_mask */
FALSE), /* pcrel_offset */
/* A 16 bit absolute relocation. */
HOWTO (R_XC16X_ABS_16, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_XC16X_ABS_16", /* name */
TRUE, /* partial_inplace */
0x00000000, /* src_mask */
0x0000ffff, /* dst_mask */
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 */
/* A PC relative 8 bit relocation. */
HOWTO (R_XC16X_8_PCREL, /* type */
0, /* rightshift */
0, /* size (0 = byte, 1 = short, 2 = long) */
8, /* bitsize */
TRUE, /* pc_relative */
8, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_XC16X_8_PCREL", /* name */
FALSE, /* partial_inplace */
0x0000, /* src_mask */
0x00ff, /* dst_mask */
TRUE), /* pcrel_offset */
/* 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 */
/* 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 */
/* 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 */
/* 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 */
};
/* Map BFD reloc types to XC16X ELF reloc types. */
struct xc16x_reloc_map
{
bfd_reloc_code_real_type bfd_reloc_val;
unsigned int xc16x_reloc_val;
};
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_XC16X_PAG, R_XC16X_PAG},
{ BFD_RELOC_XC16X_POF, R_XC16X_POF},
{ BFD_RELOC_XC16X_SEG, R_XC16X_SEG},
{ BFD_RELOC_XC16X_SOF, R_XC16X_SOF},
};
/* This function is used to search for correct relocation type from
howto structure. */
static reloc_howto_type *
xc16x_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
bfd_reloc_code_real_type code)
{
unsigned int i;
for (i = ARRAY_SIZE (xc16x_reloc_map); --i;)
if (xc16x_reloc_map [i].bfd_reloc_val == code)
return & xc16x_elf_howto_table [xc16x_reloc_map[i].xc16x_reloc_val];
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 < sizeof (xc16x_elf_howto_table) / sizeof (xc16x_elf_howto_table[0]);
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;
}
/* 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,
Elf_Internal_Rela *elf_reloc)
{
unsigned int r;
unsigned int i;
r = ELF32_R_TYPE (elf_reloc->r_info);
for (i = 0; i < ARRAY_SIZE (xc16x_elf_howto_table); i++)
if (xc16x_elf_howto_table[i].type == r)
{
bfd_reloc->howto = &xc16x_elf_howto_table[i];
return;
}
abort ();
}
static bfd_reloc_status_type
elf32_xc16x_final_link_relocate (unsigned long r_type,
bfd *input_bfd,
bfd *output_bfd ATTRIBUTE_UNUSED,
asection *input_section ATTRIBUTE_UNUSED,
bfd_byte *contents,
bfd_vma offset,
bfd_vma value,
bfd_vma addend,
struct bfd_link_info *info ATTRIBUTE_UNUSED,
asection *sym_sec ATTRIBUTE_UNUSED,
int is_local ATTRIBUTE_UNUSED)
{
bfd_byte *hit_data = contents + offset;
bfd_vma val1;
switch (r_type)
{
case R_XC16X_NONE:
return bfd_reloc_ok;
case R_XC16X_ABS_16:
value += addend;
bfd_put_16 (input_bfd, value, hit_data);
return bfd_reloc_ok;
case R_XC16X_8_PCREL:
bfd_put_8 (input_bfd, value, hit_data);
return bfd_reloc_ok;
/* Following case is to find page number from actual
address for this divide value by 16k i.e. page size. */
case R_XC16X_PAG:
value += addend;
value /= 0x4000;
bfd_put_16 (input_bfd, value, hit_data);
return bfd_reloc_ok;
/* Following case is to find page offset from actual address
for this take modulo of value by 16k i.e. page size. */
case R_XC16X_POF:
value += addend;
value %= 0x4000;
bfd_put_16 (input_bfd, value, hit_data);
return bfd_reloc_ok;
/* Following case is to find segment number from actual
address for this divide value by 64k i.e. segment size. */
case R_XC16X_SEG:
value += addend;
value /= 0x10000;
bfd_put_16 (input_bfd, value, hit_data);
return bfd_reloc_ok;
/* Following case is to find segment offset from actual address
for this take modulo of value by 64k i.e. segment size. */
case R_XC16X_SOF:
value += addend;
value %= 0x10000;
bfd_put_16 (input_bfd, value, hit_data);
return bfd_reloc_ok;
case R_XC16X_ABS_32:
if (!strstr (input_section->name,".debug"))
{
value += addend;
val1 = value;
value %= 0x4000;
val1 /= 0x4000;
val1 = val1 << 16;
value += val1;
bfd_put_32 (input_bfd, value, hit_data);
}
else
{
value += addend;
bfd_put_32 (input_bfd, value, hit_data);
}
return bfd_reloc_ok;
default:
return bfd_reloc_notsupported;
}
}
static bfd_boolean
elf32_xc16x_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;
struct elf_link_hash_entry **sym_hashes;
Elf_Internal_Rela *rel, *relend;
symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
sym_hashes = elf_sym_hashes (input_bfd);
rel = relocs;
relend = relocs + input_section->reloc_count;
for (; rel < relend; rel++)
{
unsigned int r_type;
unsigned long r_symndx;
Elf_Internal_Sym *sym;
asection *sec;
struct elf_link_hash_entry *h;
bfd_vma relocation;
/* This is a final link. */
r_symndx = ELF32_R_SYM (rel->r_info);
r_type = ELF32_R_TYPE (rel->r_info);
h = NULL;
sym = NULL;
sec = NULL;
if (r_symndx < symtab_hdr->sh_info)
{
sym = local_syms + r_symndx;
sec = local_sections[r_symndx];
relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
}
else
{
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, ignored);
}
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 = xc16x_reloc_type_lookup (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)
{
unsigned long val;
switch (bfd_get_mach (abfd))
{
default:
case bfd_mach_xc16x:
val = 0x1000;
break;
case bfd_mach_xc16xl:
val = 0x1001;
break;
case bfd_mach_xc16xs:
val = 0x1002;
break;
}
elf_elfheader (abfd)->e_flags |= val;
}
static unsigned long
elf32_xc16x_mach (flagword flags)
{
switch (flags)
{
case 0x1000:
default:
return bfd_mach_xc16x;
case 0x1001:
return bfd_mach_xc16xl;
case 0x1002:
return bfd_mach_xc16xs;
}
}
static bfd_boolean
elf32_xc16x_object_p (bfd *abfd)
{
bfd_default_set_arch_mach (abfd, bfd_arch_xc16x,
elf32_xc16x_mach (elf_elfheader (abfd)->e_flags));
return TRUE;
}
#define ELF_ARCH bfd_arch_xc16x
#define ELF_MACHINE_CODE EM_XC16X
#define ELF_MAXPAGESIZE 0x100
#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_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_rela_normal 1
#include "elf32-target.h"
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