binutils/makefile.vms


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#
# Makefile for binutils under openVMS (Alpha and Itanium)
#
# For use with gnu-make for vms
#
# Created by Klaus Kaempf, kkaempf@rmi.de
#
#   Copyright (C) 2012-2014 Free Software Foundation, Inc.
#
# This file 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; see the file COPYING3.  If not see
# <http://www.gnu.org/licenses/>.
#

DEFS=/define=("OBJDUMP_PRIVATE_VECTORS=")
OPT=/noopt/debug
CFLAGS=$(OPT)/include=([],"../include",[-.bfd])$(DEFS)\
 /name=(as_is,shortened)\
 /prefix=(all,except=("getopt","optarg","optopt","optind","opterr"))\
 /warns=(info=(ptrmismatch,shiftcount))

LIBBFD = [-.bfd]libbfd.olb/lib
LIBBFD_DEP = [-.bfd]libbfd.olb
LIBIBERTY_DEP = [-.libiberty]libiberty.olb
LIBIBERTY = [-.libiberty]libiberty.olb/lib
OPCODES_DEP = [-.opcodes]libopcodes.olb
OPCODES = [-.opcodes]libopcodes.olb/lib

DEBUG_OBJS = rddbg.obj,debug.obj,stabs.obj,ieee.obj,rdcoff.obj,dwarf.obj,\
  elfcomm.obj

BULIBS = bucomm.obj,version.obj,filemode.obj

ADDL_DEPS = $(BULIBS),$(LIBBFD_DEP),$(LIBIBERTY_DEP)
ADDL_LIBS = $(BULIBS),$(LIBBFD),$(LIBIBERTY)

SIZEOBJS = $(ADDL_DEPS),size.obj

STRINGSOBJS = $(ADDL_DEPS),strings.obj

NMOBJS = $(ADDL_DEPS),nm.obj

ADDR2LINEOBJS = $(ADDL_DEPS),addr2line.obj

OBJDUMPOBJS = objdump.obj,prdbg.obj,$(DEBUG_OBJS),$(ADDL_DEPS),$(OPCODES_DEP)

READELFOBJS = readelf.obj,dwarf.obj,unwind-ia64.obj,$(ADDL_DEPS)

all: config.h size.exe strings.exe objdump.exe nm.exe addr2line.exe

size.exe: $(SIZEOBJS)
	link/exe=$@ size.obj,$(ADDL_LIBS)

strings.exe: $(STRINGSOBJS)
	link/exe=$@ strings.obj,$(ADDL_LIBS)

nm.exe: $(NMOBJS)
	link/exe=$@ nm.obj,$(ADDL_LIBS)

addr2line.exe: $(ADDR2LINEOBJS)
	link/exe=$@ addr2line.obj,$(ADDL_LIBS)

objdump.exe: $(OBJDUMPOBJS)
	link/exe=$@ objdump.obj,prdbg.obj,$(DEBUG_OBJS),$(ADDL_LIBS),$(OPCODES)

readelf.exe: $(READELFOBJS)
	link/exe=$@ readelf.obj,dwarf.obj,unwind-ia64.obj,$(ADDL_LIBS)

config.h:
	$$ @configure
	$(MAKE) -f makefile.vms "CC=$(CC)"

clean:
	$$ purge
	$(RM) *.obj;
	$(RM) *.exe;

distclean: clean
	$(RM) config.h;
	$(RM) makefile.vms;
/* D30V-specific support for 32-bit ELF
   Copyright (C) 1997-2014 Free Software Foundation, Inc.
   Contributed by Martin Hunt (hunt@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 "elf-bfd.h"
#include "elf/d30v.h"

#define MAX32 ((bfd_signed_vma) 0x7fffffff)
#define MIN32 (- MAX32 - 1)

static bfd_reloc_status_type
bfd_elf_d30v_reloc (bfd *abfd,
		    arelent *reloc_entry,
		    asymbol *symbol,
		    void * data,
		    asection *input_section,
		    bfd *output_bfd,
		    char **error_message)
{
  bfd_signed_vma relocation;
  bfd_vma in1, in2, num;
  bfd_vma tmp_addr = 0;
  bfd_reloc_status_type r;
  asection *reloc_target_output_section;
  bfd_size_type addr = reloc_entry->address;
  bfd_reloc_status_type flag = bfd_reloc_ok;
  bfd_vma output_base = 0;
  reloc_howto_type *howto = reloc_entry->howto;
  int make_absolute = 0;

  if (output_bfd != NULL)
    {
      /* Partial linking -- do nothing.  */
      reloc_entry->address += input_section->output_offset;
      return bfd_reloc_ok;
    }

  r = bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
                             input_section, output_bfd, error_message);
  if (r != bfd_reloc_continue)
    return r;

  /* A hacked-up version of bfd_perform_reloc() follows.  */
 if (bfd_is_und_section (symbol->section)
      && (symbol->flags & BSF_WEAK) == 0
      && output_bfd == NULL)
    flag = bfd_reloc_undefined;

  /* Is the address of the relocation really within the section?  */
  if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
    return bfd_reloc_outofrange;

  /* Work out which section the relocation is targeted at and the
     initial relocation command value.  */

  /* Get symbol value.  (Common symbols are special.)  */
  if (bfd_is_com_section (symbol->section))
    relocation = 0;
  else
    relocation = symbol->value;

  reloc_target_output_section = symbol->section->output_section;

  /* Convert input-section-relative symbol value to absolute.  */
  output_base = reloc_target_output_section->vma;
  relocation += output_base + symbol->section->output_offset;

  /* Add in supplied addend.  */
  relocation += reloc_entry->addend;

  /* Here the variable relocation holds the final address of the
     symbol we are relocating against, plus any addend.  */
  if (howto->pc_relative)
    {
      tmp_addr = input_section->output_section->vma
	+ input_section->output_offset
	+ reloc_entry->address;
      relocation -= tmp_addr;
    }

  in1 = bfd_get_32 (abfd, (bfd_byte *) data + addr);
  in2 = bfd_get_32 (abfd, (bfd_byte *) data + addr + 4);

  /* Extract the addend.  */
  num = ((in2 & 0x3FFFF)
	 | ((in2 & 0xFF00000) >> 2)
	 | ((in1 & 0x3F) << 26));
  in1 &= 0xFFFFFFC0;
  in2 = 0x80000000;

  relocation += num;

  if (howto->pc_relative && howto->bitsize == 32)
    {
      /* The D30V has a PC that doesn't wrap and PC-relative jumps are
	 signed, so a PC-relative jump can't be more than +/- 2^31 bytes.
	 If one exceeds this, change it to an absolute jump.  */
      if (relocation > MAX32 || relocation < MIN32)
	{
	  relocation = (relocation + tmp_addr) & 0xffffffff;
	  make_absolute = 1;
	}
    }

  in1 |= (relocation >> 26) & 0x3F;		/* Top 6 bits.  */
  in2 |= ((relocation & 0x03FC0000) << 2);  	/* Next 8 bits.  */
  in2 |= relocation & 0x0003FFFF;		/* Bottom 18 bits.  */

  /* Change a PC-relative instruction to its
     absolute equivalent with this simple hack.  */
  if (make_absolute)
    in1 |= 0x00100000;

  bfd_put_32 (abfd, in1, (bfd_byte *) data + addr);
  bfd_put_32 (abfd, in2, (bfd_byte *) data + addr + 4);

  return flag;
}

static bfd_reloc_status_type
bfd_elf_d30v_reloc_21 (bfd *abfd,
		       arelent *reloc_entry,
		       asymbol *symbol,
		       void * data,
		       asection *input_section,
		       bfd *output_bfd,
		       char **error_message)
{
  bfd_vma relocation;
  bfd_vma in1, num;
  bfd_reloc_status_type r;
  asection *reloc_target_output_section;
  bfd_size_type addr = reloc_entry->address;
  bfd_reloc_status_type flag = bfd_reloc_ok;
  bfd_vma output_base = 0;
  reloc_howto_type *howto = reloc_entry->howto;
  int mask, max;

  if (output_bfd != NULL)
    {
      /* Partial linking -- do nothing.  */
      reloc_entry->address += input_section->output_offset;
      return bfd_reloc_ok;
    }

  r = bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
                             input_section, output_bfd, error_message);
  if (r != bfd_reloc_continue)
    return r;

  /* A hacked-up version of bfd_perform_reloc() follows.  */
  if (bfd_is_und_section (symbol->section)
      && (symbol->flags & BSF_WEAK) == 0
      && output_bfd == NULL)
    flag = bfd_reloc_undefined;

  /* Is the address of the relocation really within the section?  */
  if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
    return bfd_reloc_outofrange;

  /* Work out which section the relocation is targeted at and the
     initial relocation command value.  */

  /* Get symbol value.  (Common symbols are special.)  */
  if (bfd_is_com_section (symbol->section))
    relocation = 0;
  else
    relocation = symbol->value;

  reloc_target_output_section = symbol->section->output_section;

  /* Convert input-section-relative symbol value to absolute.  */
  output_base = reloc_target_output_section->vma;
  relocation += output_base + symbol->section->output_offset;

  /* Add in supplied addend.  */
  relocation += reloc_entry->addend;

  /* Here the variable relocation holds the final address of the
     symbol we are relocating against, plus any addend.  */

  if (howto->pc_relative)
    {
      relocation -= (input_section->output_section->vma
		     + input_section->output_offset);
      if (howto->pcrel_offset)
	relocation -= reloc_entry->address;
    }

  in1 = bfd_get_32 (abfd, (bfd_byte *) data + addr);

  mask =  (1 << howto->bitsize) - 1;
  if (howto->bitsize == 6)
    mask <<= 12;
  max = (1 << (howto->bitsize + 2)) - 1;

  /* Extract the addend.  */
  num = in1 & mask;  /* 18 bits.  */
  if (howto->bitsize == 6)
    num >>= 12;
  num <<= 3; /* shift left 3.  */
  in1 &= ~mask;  /* Mask out addend.  */

  relocation += num;
  if (howto->type == R_D30V_21_PCREL_R
      || howto->type == R_D30V_15_PCREL_R
      || howto->type == R_D30V_9_PCREL_R)
    relocation += 4;

  if ((int) relocation < 0)
    {
      if (~ (int) relocation > max)
	flag = bfd_reloc_overflow;
    }
  else
    {
      if ((int) relocation > max)
	flag = bfd_reloc_overflow;
    }

  relocation >>= 3;
  if (howto->bitsize == 6)
    in1 |= ((relocation & (mask >> 12)) << 12);
  else
    in1 |= relocation & mask;

  bfd_put_32 (abfd, in1, (bfd_byte *) data + addr);

  return flag;
}

static reloc_howto_type elf_d30v_howto_table[] =
{
  /* This reloc does nothing.  */
  HOWTO (R_D30V_NONE,		/* 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_D30V_NONE",		/* Name.  */
	 FALSE,			/* Partial_inplace.  */
	 0,			/* Src_mask.  */
	 0,			/* Dst_mask.  */
	 FALSE),		/* PCrel_offset.  */

  /* A 6 bit absolute relocation.  */
  HOWTO (R_D30V_6,		/* Type.  */
	 0,			/* Rightshift.  */
	 2,			/* Size (0 = byte, 1 = short, 2 = long).  */
	 6,			/* Bitsize.  */
	 FALSE,			/* PC_relative.  */
	 0,			/* Bitpos.  */
	 complain_overflow_bitfield, /* Complain_on_overflow.  */
	 bfd_elf_generic_reloc,	/* Special_function.  */
	 "R_D30V_6",		/* Name.  */
	 FALSE,			/* Partial_inplace.  */
	 0x3f,			/* Src_mask.  */
	 0x3f,			/* Dst_mask.  */
	 FALSE),		/* PCrel_offset.  */

  /* A relative 9 bit relocation, right shifted by 3.  */
  HOWTO (R_D30V_9_PCREL,	/* Type.  */
	 3,			/* Rightshift.  */
	 2,			/* Size (0 = byte, 1 = short, 2 = long).  */