fsf address update, but not in COPYING files

1 files changed, 570 insertions, 0 deletions

diff --git a/bfd/coff-arm.c b/bfd/coff-arm.c
new file mode 100644
index 0000000..8fa712d
--- /dev/null
+++ b/bfd/coff-arm.c
@@ -0,0 +1,570 @@
+/* BFD back-end for Intel arm COFF files.
+   Copyright 1990, 1991, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
+   Written by Cygnus Support.
+
+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 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.  */
+
+#include "bfd.h"
+#include "sysdep.h"
+#include "libbfd.h"
+#include "obstack.h"
+
+#include "coff/arm.h"
+
+#include "coff/internal.h"
+
+#ifdef COFF_WITH_PE
+#include "coff/pe.h"
+#endif
+
+#include "libcoff.h"
+
+static bfd_reloc_status_type
+aoutarm_fix_pcrel_26_done PARAMS ((bfd *, arelent *, asymbol *, PTR,
+				  asection *, bfd *, char **));
+
+static bfd_reloc_status_type
+aoutarm_fix_pcrel_26 PARAMS ((bfd *, arelent *, asymbol *, PTR,
+			     asection *, bfd *, char **));
+
+
+static bfd_reloc_status_type coff_arm_reloc 
+  PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
+
+static bfd_reloc_status_type
+coff_arm_reloc (abfd, reloc_entry, symbol, data, input_section, output_bfd,
+		 error_message)
+     bfd *abfd;
+     arelent *reloc_entry;
+     asymbol *symbol;
+     PTR data;
+     asection *input_section;
+     bfd *output_bfd;
+     char **error_message;
+{
+  symvalue diff;
+
+  if (output_bfd == (bfd *) NULL)
+    return bfd_reloc_continue;
+
+  if (bfd_is_com_section (symbol->section))
+    {
+      /* We are relocating a common symbol.  The current value in the
+	 object file is ORIG + OFFSET, where ORIG is the value of the
+	 common symbol as seen by the object file when it was compiled
+	 (this may be zero if the symbol was undefined) and OFFSET is
+	 the offset into the common symbol (normally zero, but may be
+	 non-zero when referring to a field in a common structure).
+	 ORIG is the negative of reloc_entry->addend, which is set by
+	 the CALC_ADDEND macro below.  We want to replace the value in
+	 the object file with NEW + OFFSET, where NEW is the value of
+	 the common symbol which we are going to put in the final
+	 object file.  NEW is symbol->value.  */
+      diff = symbol->value + reloc_entry->addend;
+    }
+  else
+    {
+      /* For some reason bfd_perform_relocation always effectively
+	 ignores the addend for a COFF target when producing
+	 relocateable output.  This seems to be always wrong for 386
+	 COFF, so we handle the addend here instead.  */
+      diff = reloc_entry->addend;
+    }
+
+#define DOIT(x) \
+  x = ((x & ~howto->dst_mask) | (((x & howto->src_mask) + diff) & howto->dst_mask))
+
+  if (diff != 0)
+    {
+      reloc_howto_type *howto = reloc_entry->howto;
+      unsigned char *addr = (unsigned char *) data + reloc_entry->address;
+
+      switch (howto->size)
+	{
+	case 0:
+	  {
+	    char x = bfd_get_8 (abfd, addr);
+	    DOIT (x);
+	    bfd_put_8 (abfd, x, addr);
+	  }
+	  break;
+
+	case 1:
+	  {
+	    short x = bfd_get_16 (abfd, addr);
+	    DOIT (x);
+	    bfd_put_16 (abfd, x, addr);
+	  }
+	  break;
+
+	case 2:
+	  {
+	    long x = bfd_get_32 (abfd, addr);
+	    DOIT (x);
+	    bfd_put_32 (abfd, x, addr);
+	  }
+	  break;
+
+	default:
+	  abort ();
+	}
+    }
+
+  /* Now let bfd_perform_relocation finish everything up.  */
+  return bfd_reloc_continue;
+}
+
+static reloc_howto_type aoutarm_std_reloc_howto[] = 
+{
+  /* type              rs size bsz  pcrel bitpos ovrf                     sf name     part_inpl readmask  setmask    pcdone */
+  HOWTO(0,			/* type */
+	0,			/* rs */
+	0,			/* size */
+	8,			/* bsz */
+	false,			/* pcrel */
+	0,			/* bitpos */
+	complain_overflow_bitfield, /* ovf */
+	coff_arm_reloc,		/* sf */
+	"8",			/*name */
+        true,			/* partial */
+	0x000000ff,		/*read mask */
+	0x000000ff,		/* setmask */
+	PCRELOFFSET		/* pcdone */),
+  HOWTO(1,  
+	0, 
+	1, 
+	16, 
+	false,
+	0,
+	complain_overflow_bitfield,
+	coff_arm_reloc,
+	"16", 
+	true,
+	0x0000ffff,
+	0x0000ffff, 
+	PCRELOFFSET),
+  HOWTO( 2, 
+	0,
+	2, 
+	32,
+	false,
+	0,
+	complain_overflow_bitfield,
+	coff_arm_reloc,
+	"32",
+        true,
+	0xffffffff,
+	0xffffffff,
+	PCRELOFFSET),
+  HOWTO( 3,
+	2,
+	3, 
+	26,
+	true,
+	0,
+	complain_overflow_signed,
+	aoutarm_fix_pcrel_26 ,
+	"ARM26",
+	true, 
+	0x00ffffff,
+	0x00ffffff, 
+	PCRELOFFSET),
+  HOWTO( 4,        
+	0,
+	0,
+	8, 
+	true,
+	0,
+	complain_overflow_signed, 
+	coff_arm_reloc,
+	"DISP8",  
+	true,
+	0x000000ff,
+	0x000000ff,
+	true),
+  HOWTO( 5, 
+	0,
+	1,
+	16,
+	true,
+	0,
+	complain_overflow_signed, 
+	coff_arm_reloc,
+	"DISP16",
+	true,
+	0x0000ffff,
+	0x0000ffff,
+	true),
+  HOWTO( 6,
+	0,
+	2,
+	32,
+	true,
+	0,
+	complain_overflow_signed, 
+ 	coff_arm_reloc,
+	"DISP32",
+	true,
+	0xffffffff,
+	0xffffffff,
+	true),
+  HOWTO( 7,  
+	2, 
+	3,   
+	26,
+	false,
+	0,
+	complain_overflow_signed,
+	aoutarm_fix_pcrel_26_done, 
+	"ARM26D",
+	true,
+	0x00ffffff,
+	0x00ffffff, 
+	false),
+  {-1},
+  HOWTO( 9,
+	0,
+	-1,
+	16,
+	false,
+	0, 
+	complain_overflow_bitfield,
+	coff_arm_reloc,
+	"NEG16",
+        true, 
+	0x0000ffff,
+	0x0000ffff, 
+	false),
+  HOWTO( 10, 
+	0, 
+	-2,
+	32,
+	false,
+	0,
+	complain_overflow_bitfield,
+	coff_arm_reloc,
+	"NEG32",
+        true,
+	0xffffffff,
+	0xffffffff,
+	false)
+};
+
+
+
+#define RTYPE2HOWTO(cache_ptr, dst) \
+	    (cache_ptr)->howto = aoutarm_std_reloc_howto + (dst)->r_type;
+
+static bfd_reloc_status_type
+aoutarm_fix_pcrel_26_done (abfd, reloc_entry, symbol, data, input_section,
+			  output_bfd, error_message)
+     bfd *abfd;
+     arelent *reloc_entry;
+     asymbol *symbol;
+     PTR data;
+     asection *input_section;
+     bfd *output_bfd;
+     char **error_message;
+{
+  /* This is dead simple at present.  */
+  return bfd_reloc_ok;
+}
+
+static bfd_reloc_status_type
+aoutarm_fix_pcrel_26 (abfd, reloc_entry, symbol, data, input_section,
+		     output_bfd, error_message)
+     bfd *abfd;
+     arelent *reloc_entry;
+     asymbol *symbol;
+     PTR data;
+     asection *input_section;
+     bfd *output_bfd;
+     char **error_message;
+{
+  bfd_vma relocation;
+  bfd_size_type addr = reloc_entry->address;
+  long target = bfd_get_32 (abfd, (bfd_byte *) data + addr);
+  bfd_reloc_status_type flag = bfd_reloc_ok;
+  
+  /* If this is an undefined symbol, return error */
+  if (symbol->section == &bfd_und_section
+      && (symbol->flags & BSF_WEAK) == 0)
+    return output_bfd ? bfd_reloc_continue : bfd_reloc_undefined;
+
+  /* If the sections are different, and we are doing a partial relocation,
+     just ignore it for now.  */
+  if (symbol->section->name != input_section->name
+      && output_bfd != (bfd *)NULL)
+    return bfd_reloc_continue;
+
+  relocation = (target & 0x00ffffff) << 2;
+  relocation = (relocation ^ 0x02000000) - 0x02000000; /* Sign extend */
+  relocation += symbol->value;
+  relocation += symbol->section->output_section->vma;
+  relocation += symbol->section->output_offset;
+  relocation += reloc_entry->addend;
+  relocation -= input_section->output_section->vma;
+  relocation -= input_section->output_offset;
+  relocation -= addr;
+  if (relocation & 3)
+    return bfd_reloc_overflow;
+
+  /* Check for overflow */
+  if (relocation & 0x02000000)
+    {
+      if ((relocation & ~0x03ffffff) != ~0x03ffffff)
+	flag = bfd_reloc_overflow;
+    }
+  else if (relocation & ~0x03ffffff)
+    flag = bfd_reloc_overflow;
+
+  target &= ~0x00ffffff;
+  target |= (relocation >> 2) & 0x00ffffff;
+  bfd_put_32 (abfd, target, (bfd_byte *) data + addr);
+
+  /* Now the ARM magic... Change the reloc type so that it is marked as done.
+     Strictly this is only necessary if we are doing a partial relocation.  */
+  reloc_entry->howto = &aoutarm_std_reloc_howto[7];
+  
+  return flag;
+}
+
+static CONST struct reloc_howto_struct *
+arm_reloc_type_lookup(abfd,code)
+      bfd *abfd;
+      bfd_reloc_code_real_type code;
+{
+#define ASTD(i,j)       case i: return &aoutarm_std_reloc_howto[j]
+  if (code == BFD_RELOC_CTOR)
+    switch (bfd_get_arch_info (abfd)->bits_per_address)
+      {
+      case 32:
+        code = BFD_RELOC_32;
+        break;
+      default: return (CONST struct reloc_howto_struct *) 0;
+      }
+
+  switch (code)
+    {
+      ASTD (BFD_RELOC_16, 1);
+      ASTD (BFD_RELOC_32, 2);
+      ASTD (BFD_RELOC_ARM_PCREL_BRANCH, 3);
+      ASTD (BFD_RELOC_8_PCREL, 4);
+      ASTD (BFD_RELOC_16_PCREL, 5);
+      ASTD (BFD_RELOC_32_PCREL, 6);
+    default: return (CONST struct reloc_howto_struct *) 0;
+    }
+}
+
+
+#define coff_bfd_reloc_type_lookup arm_reloc_type_lookup
+
+static reloc_howto_type *coff_arm_rtype_to_howto
+  PARAMS ((bfd *, asection *, struct internal_reloc *,
+	   struct coff_link_hash_entry *, struct internal_syment *,
+
+	   bfd_vma *));
+
+#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (2)
+/* The page size is a guess based on ELF.  */
+#define COFF_PAGE_SIZE 0x1000
+
+/* For some reason when using arm COFF the value stored in the .text
+   section for a reference to a common symbol is the value itself plus
+   any desired offset.  Ian Taylor, Cygnus Support.  */
+
+/* If we are producing relocateable output, we need to do some
+   adjustments to the object file that are not done by the
+   bfd_perform_relocation function.  This function is called by every
+   reloc type to make any required adjustments.  */
+
+static bfd_reloc_status_type
+aacoff_arm_reloc (abfd, reloc_entry, symbol, data, input_section, output_bfd,
+		 error_message)
+     bfd *abfd;
+     arelent *reloc_entry;
+     asymbol *symbol;
+     PTR data;
+     asection *input_section;
+     bfd *output_bfd;
+     char **error_message;
+{
+  symvalue diff;
+
+  if (output_bfd == (bfd *) NULL)
+    return bfd_reloc_continue;
+
+  if (bfd_is_com_section (symbol->section))
+    {
+      /* We are relocating a common symbol.  The current value in the
+	 object file is ORIG + OFFSET, where ORIG is the value of the
+	 common symbol as seen by the object file when it was compiled
+	 (this may be zero if the symbol was undefined) and OFFSET is
+	 the offset into the common symbol (normally zero, but may be
+	 non-zero when referring to a field in a common structure).
+	 ORIG is the negative of reloc_entry->addend, which is set by
+	 the CALC_ADDEND macro below.  We want to replace the value in
+	 the object file with NEW + OFFSET, where NEW is the value of
+	 the common symbol which we are going to put in the final
+	 object file.  NEW is symbol->value.  */
+      diff = symbol->value + reloc_entry->addend;
+    }
+  else
+    {
+      /* For some reason bfd_perform_relocation always effectively
+	 ignores the addend for a COFF target when producing
+	 relocateable output.  This seems to be always wrong for arm
+	 COFF, so we handle the addend here instead.  */
+      diff = reloc_entry->addend;
+    }
+
+#define DOIT(x) \
+  x = ((x & ~howto->dst_mask) | (((x & howto->src_mask) + diff) & howto->dst_mask))
+
+  if (diff != 0)
+    {
+      reloc_howto_type *howto = reloc_entry->howto;
+      unsigned char *addr = (unsigned char *) data + reloc_entry->address;
+
+      switch (howto->size)
+	{
+	case 0:
+	  {
+	    char x = bfd_get_8 (abfd, addr);
+	    DOIT (x);
+	    bfd_put_8 (abfd, x, addr);
+	  }
+	  break;
+
+	case 1:
+	  {
+	    short x = bfd_get_16 (abfd, addr);
+	    DOIT (x);
+	    bfd_put_16 (abfd, x, addr);
+	  }
+	  break;
+
+	case 2:
+	  {
+	    long x = bfd_get_32 (abfd, addr);
+	    DOIT (x);
+	    bfd_put_32 (abfd, x, addr);
+	  }
+	  break;
+
+	default:
+	  abort ();
+	}
+    }
+
+  /* Now let bfd_perform_relocation finish everything up.  */
+  return bfd_reloc_continue;
+}
+
+
+
+
+
+/* Turn a howto into a reloc  nunmber */
+
+#define SELECT_RELOC(x,howto) { x.r_type = howto->type; }
+#define BADMAG(x) ARMBADMAG(x)
+#define ARM 1			/* Customize coffcode.h */
+
+
+/* On SCO Unix 3.2.2 the native assembler generates two .data
+   sections.  We handle that by renaming the second one to .data2.  It
+   does no harm to do this for any arm COFF target.  */
+#define TWO_DATA_SECS
+
+/* For arm COFF a STYP_NOLOAD | STYP_BSS section is part of a shared
+   library.  On some other COFF targets STYP_BSS is normally
+   STYP_NOLOAD.  */
+#define BSS_NOLOAD_IS_SHARED_LIBRARY
+
+
+/* We use the special COFF backend linker.  */
+#define coff_relocate_section _bfd_coff_generic_relocate_section
+
+
+
+#include "coffcode.h"
+
+static const bfd_target *
+i3coff_object_p(a)
+     bfd *a;
+{
+  return coff_object_p(a);
+}
+
+const bfd_target
+#ifdef TARGET_SYM
+  TARGET_SYM =
+#else
+  armcoff_vec =
+#endif
+{
+#ifdef TARGET_NAME
+  TARGET_NAME,
+#else
+  "coff-arm",			/* name */
+#endif
+  bfd_target_coff_flavour,
+  false,			/* data byte order is little */
+  false,			/* header byte order is little */
+
+  (HAS_RELOC | EXEC_P |		/* object flags */
+   HAS_LINENO | HAS_DEBUG |
+   HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
+
+  (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
+#ifdef TARGET_UNDERSCORE
+  TARGET_UNDERSCORE,		/* leading underscore */
+#else
+  0,				/* leading underscore */
+#endif
+  '/',				/* ar_pad_char */
+  15,				/* ar_max_namelen */
+
+  2,				/* minimum alignment power */
+  bfd_getl64, bfd_getl_signed_64, bfd_putl64,
+     bfd_getl32, bfd_getl_signed_32, bfd_putl32,
+     bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */
+  bfd_getl64, bfd_getl_signed_64, bfd_putl64,
+     bfd_getl32, bfd_getl_signed_32, bfd_putl32,
+     bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */
+
+/* Note that we allow an object file to be treated as a core file as well. */
+    {_bfd_dummy_target, i3coff_object_p, /* bfd_check_format */
+       bfd_generic_archive_p, i3coff_object_p},
+    {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */
+       bfd_false},
+    {bfd_false, coff_write_object_contents, /* bfd_write_contents */
+       _bfd_write_archive_contents, bfd_false},
+
+     BFD_JUMP_TABLE_GENERIC (coff),
+     BFD_JUMP_TABLE_COPY (coff),
+     BFD_JUMP_TABLE_CORE (_bfd_nocore),
+     BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
+     BFD_JUMP_TABLE_SYMBOLS (coff),
+     BFD_JUMP_TABLE_RELOCS (coff),
+     BFD_JUMP_TABLE_WRITE (coff),
+     BFD_JUMP_TABLE_LINK (coff),
+     BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
+
+  COFF_SWAP_TABLE,
+};