bfd/coff-h8500.c - third_party/binutils-gdb - Git at Google

 /* BFD back-end for Renesas H8/500 COFF binaries.
    Copyright (C) 1993-2016 Free Software Foundation, Inc.
    Contributed by Cygnus Support.
    Written by Steve Chamberlain, <sac@cygnus.com>.

    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, Inc., 51 Franklin Street - Fifth Floor, Boston,
    MA 02110-1301, USA.  */

 #include "sysdep.h"
 #include "bfd.h"
 #include "libbfd.h"
 #include "bfdlink.h"
 #include "coff/h8500.h"
 #include "coff/internal.h"
 #include "libcoff.h"


 #define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (1)

 static reloc_howto_type r_imm8 =
 HOWTO (R_H8500_IMM8, 0, 1, 8, FALSE, 0,
        complain_overflow_bitfield, 0, "r_imm8", TRUE, 0x000000ff, 0x000000ff, FALSE);

 static reloc_howto_type r_imm16 =
 HOWTO (R_H8500_IMM16, 0, 1, 16, FALSE, 0,
        complain_overflow_bitfield, 0, "r_imm16", TRUE, 0x0000ffff, 0x0000ffff, FALSE);

 static reloc_howto_type r_imm24 =
 HOWTO (R_H8500_IMM24, 0, 1, 24, FALSE, 0,
        complain_overflow_bitfield, 0, "r_imm24", TRUE, 0x00ffffff, 0x00ffffff, FALSE);

 static reloc_howto_type r_imm32 =
 HOWTO (R_H8500_IMM32, 0, 1, 32, FALSE, 0,
        complain_overflow_bitfield, 0, "r_imm32", TRUE, 0xffffffff, 0xffffffff, FALSE);

 static reloc_howto_type r_high8 =
 HOWTO (R_H8500_HIGH8, 0, 1, 8, FALSE, 0,
        complain_overflow_dont, 0, "r_high8", TRUE, 0x000000ff, 0x000000ff, FALSE);

 static reloc_howto_type r_low16 =
 HOWTO (R_H8500_LOW16, 0, 1, 16, FALSE, 0,
        complain_overflow_dont, 0, "r_low16", TRUE, 0x0000ffff, 0x0000ffff, FALSE);

 static reloc_howto_type r_pcrel8 =
 HOWTO (R_H8500_PCREL8, 0, 1, 8, TRUE, 0, complain_overflow_signed, 0, "r_pcrel8", TRUE, 0, 0, TRUE);

 static reloc_howto_type r_pcrel16 =
 HOWTO (R_H8500_PCREL16, 0, 1, 16, TRUE, 0, complain_overflow_signed, 0, "r_pcrel16", TRUE, 0, 0, TRUE);

 static reloc_howto_type r_high16 =
 HOWTO (R_H8500_HIGH16, 0, 1, 8, FALSE, 0,
        complain_overflow_dont, 0, "r_high16", TRUE, 0x000ffff, 0x0000ffff, FALSE);

 /* Turn a howto into a reloc number.  */

 static int
 coff_h8500_select_reloc (reloc_howto_type *howto)
 {
   return howto->type;
 }

 #define SELECT_RELOC(x,howto) x.r_type = coff_h8500_select_reloc(howto)

 #define BADMAG(x) H8500BADMAG(x)
 #define H8500 1			/* Customize coffcode.h */

 #define __A_MAGIC_SET__

 /* Code to swap in the reloc.  */
 #define SWAP_IN_RELOC_OFFSET	H_GET_32
 #define SWAP_OUT_RELOC_OFFSET	H_PUT_32
 #define SWAP_OUT_RELOC_EXTRA(abfd, src, dst) \
   dst->r_stuff[0] = 'S'; \
   dst->r_stuff[1] = 'C';

 /* Code to turn a r_type into a howto ptr, uses the above howto table.  */

 static void
 rtype2howto (arelent * internal, struct internal_reloc *dst)
 {
   switch (dst->r_type)
     {
     default:
       internal->howto = NULL;
       break;
     case R_H8500_IMM8:
       internal->howto = &r_imm8;
       break;
     case R_H8500_IMM16:
       internal->howto = &r_imm16;
       break;
     case R_H8500_IMM24:
       internal->howto = &r_imm24;
       break;
     case R_H8500_IMM32:
       internal->howto = &r_imm32;
       break;
     case R_H8500_PCREL8:
       internal->howto = &r_pcrel8;
       break;
     case R_H8500_PCREL16:
       internal->howto = &r_pcrel16;
       break;
     case R_H8500_HIGH8:
       internal->howto = &r_high8;
       break;
     case R_H8500_HIGH16:
       internal->howto = &r_high16;
       break;
     case R_H8500_LOW16:
       internal->howto = &r_low16;
       break;
     }
 }

 #define RTYPE2HOWTO(internal, relocentry) rtype2howto(internal,relocentry)

 /* Perform any necessary magic to the addend in a reloc entry.  */

 #define CALC_ADDEND(abfd, symbol, ext_reloc, cache_ptr) \
  cache_ptr->addend =  ext_reloc.r_offset;

 #define RELOC_PROCESSING(relent,reloc,symbols,abfd,section) \
  reloc_processing(relent, reloc, symbols, abfd, section)

 static void
 reloc_processing (arelent * relent,
 		  struct internal_reloc *reloc,
 		  asymbol ** symbols,
 		  bfd * abfd,
 		  asection * section)
 {
   relent->address = reloc->r_vaddr;
   rtype2howto (relent, reloc);

   if (reloc->r_symndx > 0)
     relent->sym_ptr_ptr = symbols + obj_convert (abfd)[reloc->r_symndx];
   else
     relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;

   relent->addend = reloc->r_offset;
   relent->address -= section->vma;
 }

 static void
 extra_case (bfd *in_abfd,
 	    struct bfd_link_info *link_info,
 	    struct bfd_link_order *link_order,
 	    arelent *reloc,
 	    bfd_byte *data,
 	    unsigned int *src_ptr,
 	    unsigned int *dst_ptr)
 {
   bfd_byte *d = data+*dst_ptr;
   asection *input_section = link_order->u.indirect.section;

   switch (reloc->howto->type)
     {
     case R_H8500_IMM8:
       bfd_put_8 (in_abfd,
 		 bfd_coff_reloc16_get_value (reloc, link_info, input_section),
 		 d);
       (*dst_ptr) += 1;
       (*src_ptr) += 1;
       break;

     case R_H8500_HIGH8:
       bfd_put_8 (in_abfd,
 		 (bfd_coff_reloc16_get_value (reloc, link_info, input_section)
 		  >> 16),
 		 d);
       (*dst_ptr) += 1;
       (*src_ptr) += 1;
       break;

     case R_H8500_IMM16:
       bfd_put_16 (in_abfd,
 		  bfd_coff_reloc16_get_value (reloc, link_info, input_section),
 		  d);
       (*dst_ptr) += 2;
       (*src_ptr) += 2;
       break;

     case R_H8500_LOW16:
       bfd_put_16 (in_abfd,
 		  bfd_coff_reloc16_get_value (reloc, link_info, input_section),
 		  d);

       (*dst_ptr) += 2;
       (*src_ptr) += 2;
       break;

     case R_H8500_HIGH16:
       bfd_put_16 (in_abfd,
 		  (bfd_coff_reloc16_get_value (reloc, link_info, input_section)
 		   >> 16),
 		  d);

       (*dst_ptr) += 2;
       (*src_ptr) += 2;
       break;

     case R_H8500_IMM24:
       {
 	int v = bfd_coff_reloc16_get_value (reloc, link_info, input_section);
 	int o = bfd_get_32 (in_abfd, data+ *dst_ptr -1);
 	v = (v & 0x00ffffff) | (o & 0xff00000);
 	bfd_put_32 (in_abfd, (bfd_vma) v, data  + *dst_ptr -1);
 	(*dst_ptr) += 3;
 	(*src_ptr) += 3;
       }
       break;
     case R_H8500_IMM32:
       {
 	int v = bfd_coff_reloc16_get_value (reloc, link_info, input_section);
 	bfd_put_32 (in_abfd, (bfd_vma) v, data  + *dst_ptr);
 	(*dst_ptr) += 4;
 	(*src_ptr) += 4;
       }
       break;

     case R_H8500_PCREL8:
       {
 	bfd_vma dst = bfd_coff_reloc16_get_value (reloc, link_info,
 						  input_section);
 	bfd_vma dot = (*dst_ptr
 		       + input_section->output_offset
 		       + input_section->output_section->vma);
 	int gap = dst - dot - 1; /* -1 since were in the odd byte of the
 				    word and the pc's been incremented.  */

 	if (gap > 128 || gap < -128)
 	  (*link_info->callbacks->reloc_overflow)
 	    (link_info, NULL, bfd_asymbol_name (*reloc->sym_ptr_ptr),
 	     reloc->howto->name, reloc->addend, input_section->owner,
 	     input_section, reloc->address);

 	bfd_put_8 (in_abfd, gap, data + *dst_ptr);
 	(*dst_ptr)++;
 	(*src_ptr)++;
 	break;
       }
     case R_H8500_PCREL16:
       {
 	bfd_vma dst = bfd_coff_reloc16_get_value (reloc, link_info,
 						  input_section);
 	bfd_vma dot = (*dst_ptr
 		       + input_section->output_offset
 		       + input_section->output_section->vma);
 	int gap = dst - dot - 1; /* -1 since were in the odd byte of the
 				    word and the pc's been incremented.  */

 	if (gap > 32767 || gap < -32768)
 	  (*link_info->callbacks->reloc_overflow)
 	    (link_info, NULL, bfd_asymbol_name (*reloc->sym_ptr_ptr),
 	     reloc->howto->name, reloc->addend, input_section->owner,
 	     input_section, reloc->address);

 	bfd_put_16 (in_abfd, (bfd_vma) gap, data + *dst_ptr);
 	(*dst_ptr) += 2;
 	(*src_ptr) += 2;
 	break;
       }

     default:
       abort ();
     }
 }

 #define coff_reloc16_extra_cases extra_case

 #ifndef bfd_pe_print_pdata
 #define bfd_pe_print_pdata	NULL
 #endif

 #include "coffcode.h"

 #undef  coff_bfd_get_relocated_section_contents
 #undef coff_bfd_relax_section
 #define coff_bfd_get_relocated_section_contents \
   bfd_coff_reloc16_get_relocated_section_contents
 #define coff_bfd_relax_section bfd_coff_reloc16_relax_section

 CREATE_BIG_COFF_TARGET_VEC (h8500_coff_vec, "coff-h8500", 0, 0, '_', NULL, COFF_SWAP_TABLE)
	/* BFD back-end for Renesas H8/500 COFF binaries.
	Copyright (C) 1993-2016 Free Software Foundation, Inc.
	Contributed by Cygnus Support.
	Written by Steve Chamberlain, <sac@cygnus.com>.

	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, Inc., 51 Franklin Street - Fifth Floor, Boston,
	MA 02110-1301, USA. */

	#include "sysdep.h"
	#include "bfd.h"
	#include "libbfd.h"
	#include "bfdlink.h"
	#include "coff/h8500.h"
	#include "coff/internal.h"
	#include "libcoff.h"


	#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (1)

	static reloc_howto_type r_imm8 =
	HOWTO (R_H8500_IMM8, 0, 1, 8, FALSE, 0,
	complain_overflow_bitfield, 0, "r_imm8", TRUE, 0x000000ff, 0x000000ff, FALSE);

	static reloc_howto_type r_imm16 =
	HOWTO (R_H8500_IMM16, 0, 1, 16, FALSE, 0,
	complain_overflow_bitfield, 0, "r_imm16", TRUE, 0x0000ffff, 0x0000ffff, FALSE);

	static reloc_howto_type r_imm24 =
	HOWTO (R_H8500_IMM24, 0, 1, 24, FALSE, 0,
	complain_overflow_bitfield, 0, "r_imm24", TRUE, 0x00ffffff, 0x00ffffff, FALSE);

	static reloc_howto_type r_imm32 =
	HOWTO (R_H8500_IMM32, 0, 1, 32, FALSE, 0,
	complain_overflow_bitfield, 0, "r_imm32", TRUE, 0xffffffff, 0xffffffff, FALSE);

	static reloc_howto_type r_high8 =
	HOWTO (R_H8500_HIGH8, 0, 1, 8, FALSE, 0,
	complain_overflow_dont, 0, "r_high8", TRUE, 0x000000ff, 0x000000ff, FALSE);

	static reloc_howto_type r_low16 =
	HOWTO (R_H8500_LOW16, 0, 1, 16, FALSE, 0,
	complain_overflow_dont, 0, "r_low16", TRUE, 0x0000ffff, 0x0000ffff, FALSE);

	static reloc_howto_type r_pcrel8 =
	HOWTO (R_H8500_PCREL8, 0, 1, 8, TRUE, 0, complain_overflow_signed, 0, "r_pcrel8", TRUE, 0, 0, TRUE);

	static reloc_howto_type r_pcrel16 =
	HOWTO (R_H8500_PCREL16, 0, 1, 16, TRUE, 0, complain_overflow_signed, 0, "r_pcrel16", TRUE, 0, 0, TRUE);

	static reloc_howto_type r_high16 =
	HOWTO (R_H8500_HIGH16, 0, 1, 8, FALSE, 0,
	complain_overflow_dont, 0, "r_high16", TRUE, 0x000ffff, 0x0000ffff, FALSE);

	/* Turn a howto into a reloc number. */

	static int
	coff_h8500_select_reloc (reloc_howto_type *howto)
	{
	return howto->type;
	}

	#define SELECT_RELOC(x,howto) x.r_type = coff_h8500_select_reloc(howto)

	#define BADMAG(x) H8500BADMAG(x)
	#define H8500 1 /* Customize coffcode.h */

	#define __A_MAGIC_SET__

	/* Code to swap in the reloc. */
	#define SWAP_IN_RELOC_OFFSET H_GET_32
	#define SWAP_OUT_RELOC_OFFSET H_PUT_32
	#define SWAP_OUT_RELOC_EXTRA(abfd, src, dst) \
	dst->r_stuff[0] = 'S'; \
	dst->r_stuff[1] = 'C';

	/* Code to turn a r_type into a howto ptr, uses the above howto table. */

	static void
	rtype2howto (arelent * internal, struct internal_reloc *dst)
	{
	switch (dst->r_type)
	{
	default:
	internal->howto = NULL;
	break;
	case R_H8500_IMM8:
	internal->howto = &r_imm8;
	break;
	case R_H8500_IMM16:
	internal->howto = &r_imm16;
	break;
	case R_H8500_IMM24:
	internal->howto = &r_imm24;
	break;
	case R_H8500_IMM32:
	internal->howto = &r_imm32;
	break;
	case R_H8500_PCREL8:
	internal->howto = &r_pcrel8;
	break;
	case R_H8500_PCREL16:
	internal->howto = &r_pcrel16;
	break;
	case R_H8500_HIGH8:
	internal->howto = &r_high8;
	break;
	case R_H8500_HIGH16:
	internal->howto = &r_high16;
	break;
	case R_H8500_LOW16:
	internal->howto = &r_low16;
	break;
	}
	}

	#define RTYPE2HOWTO(internal, relocentry) rtype2howto(internal,relocentry)

	/* Perform any necessary magic to the addend in a reloc entry. */

	#define CALC_ADDEND(abfd, symbol, ext_reloc, cache_ptr) \
	cache_ptr->addend = ext_reloc.r_offset;

	#define RELOC_PROCESSING(relent,reloc,symbols,abfd,section) \
	reloc_processing(relent, reloc, symbols, abfd, section)

	static void
	reloc_processing (arelent * relent,
	struct internal_reloc *reloc,
	asymbol ** symbols,
	bfd * abfd,
	asection * section)
	{
	relent->address = reloc->r_vaddr;
	rtype2howto (relent, reloc);

	if (reloc->r_symndx > 0)
	relent->sym_ptr_ptr = symbols + obj_convert (abfd)[reloc->r_symndx];
	else
	relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;

	relent->addend = reloc->r_offset;
	relent->address -= section->vma;
	}

	static void
	extra_case (bfd *in_abfd,
	struct bfd_link_info *link_info,
	struct bfd_link_order *link_order,
	arelent *reloc,
	bfd_byte *data,
	unsigned int *src_ptr,
	unsigned int *dst_ptr)
	{
	bfd_byte d = data+dst_ptr;
	asection *input_section = link_order->u.indirect.section;

	switch (reloc->howto->type)
	{
	case R_H8500_IMM8:
	bfd_put_8 (in_abfd,
	bfd_coff_reloc16_get_value (reloc, link_info, input_section),
	d);
	(*dst_ptr) += 1;
	(*src_ptr) += 1;
	break;

	case R_H8500_HIGH8:
	bfd_put_8 (in_abfd,
	(bfd_coff_reloc16_get_value (reloc, link_info, input_section)
	>> 16),
	d);
	(*dst_ptr) += 1;
	(*src_ptr) += 1;
	break;

	case R_H8500_IMM16:
	bfd_put_16 (in_abfd,
	bfd_coff_reloc16_get_value (reloc, link_info, input_section),
	d);
	(*dst_ptr) += 2;
	(*src_ptr) += 2;
	break;

	case R_H8500_LOW16:
	bfd_put_16 (in_abfd,
	bfd_coff_reloc16_get_value (reloc, link_info, input_section),
	d);

	(*dst_ptr) += 2;
	(*src_ptr) += 2;
	break;

	case R_H8500_HIGH16:
	bfd_put_16 (in_abfd,
	(bfd_coff_reloc16_get_value (reloc, link_info, input_section)
	>> 16),
	d);

	(*dst_ptr) += 2;
	(*src_ptr) += 2;
	break;

	case R_H8500_IMM24:
	{
	int v = bfd_coff_reloc16_get_value (reloc, link_info, input_section);
	int o = bfd_get_32 (in_abfd, data+ *dst_ptr -1);
	v = (v & 0x00ffffff) \| (o & 0xff00000);
	bfd_put_32 (in_abfd, (bfd_vma) v, data + *dst_ptr -1);
	(*dst_ptr) += 3;
	(*src_ptr) += 3;
	}
	break;
	case R_H8500_IMM32:
	{
	int v = bfd_coff_reloc16_get_value (reloc, link_info, input_section);
	bfd_put_32 (in_abfd, (bfd_vma) v, data + *dst_ptr);
	(*dst_ptr) += 4;
	(*src_ptr) += 4;
	}
	break;

	case R_H8500_PCREL8:
	{
	bfd_vma dst = bfd_coff_reloc16_get_value (reloc, link_info,
	input_section);
	bfd_vma dot = (*dst_ptr
	+ input_section->output_offset
	+ input_section->output_section->vma);
	int gap = dst - dot - 1; /* -1 since were in the odd byte of the
	word and the pc's been incremented. */

	if (gap > 128 \|\| gap < -128)
	(*link_info->callbacks->reloc_overflow)
	(link_info, NULL, bfd_asymbol_name (*reloc->sym_ptr_ptr),
	reloc->howto->name, reloc->addend, input_section->owner,
	input_section, reloc->address);

	bfd_put_8 (in_abfd, gap, data + *dst_ptr);
	(*dst_ptr)++;
	(*src_ptr)++;
	break;
	}
	case R_H8500_PCREL16:
	{
	bfd_vma dst = bfd_coff_reloc16_get_value (reloc, link_info,
	input_section);
	bfd_vma dot = (*dst_ptr
	+ input_section->output_offset
	+ input_section->output_section->vma);
	int gap = dst - dot - 1; /* -1 since were in the odd byte of the
	word and the pc's been incremented. */

	if (gap > 32767 \|\| gap < -32768)
	(*link_info->callbacks->reloc_overflow)
	(link_info, NULL, bfd_asymbol_name (*reloc->sym_ptr_ptr),
	reloc->howto->name, reloc->addend, input_section->owner,
	input_section, reloc->address);

	bfd_put_16 (in_abfd, (bfd_vma) gap, data + *dst_ptr);
	(*dst_ptr) += 2;
	(*src_ptr) += 2;
	break;
	}

	default:
	abort ();
	}
	}

	#define coff_reloc16_extra_cases extra_case

	#ifndef bfd_pe_print_pdata
	#define bfd_pe_print_pdata NULL
	#endif

	#include "coffcode.h"

	#undef coff_bfd_get_relocated_section_contents
	#undef coff_bfd_relax_section
	#define coff_bfd_get_relocated_section_contents \
	bfd_coff_reloc16_get_relocated_section_contents
	#define coff_bfd_relax_section bfd_coff_reloc16_relax_section

	CREATE_BIG_COFF_TARGET_VEC (h8500_coff_vec, "coff-h8500", 0, 0, '_', NULL, COFF_SWAP_TABLE)