* coffcode.h (CALC_ADDEND): Change to fetch original symbol value

	from original BFD, rather than using value of current BFD symbol.
	Needed for new linker.
	* coff-sparc.c (CALC_ADDEND): Likewise.

3 files changed, 275 insertions, 10 deletions

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 444adcf..4b7127b 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,5 +1,10 @@
 Thu Mar 31 11:52:15 1994  Ian Lance Taylor  (ian@tweedledumb.cygnus.com)
 
+	* coffcode.h (CALC_ADDEND): Change to fetch original symbol value
+	from original BFD, rather than using value of current BFD symbol.
+	Needed for new linker.
+	* coff-sparc.c (CALC_ADDEND): Likewise.
+
 	* ecoff.c (ecoff_write_object_contents): Set the text_start and
 	data_start entries in the optional header correctly even if a text
 	or data section starts at location zero.
diff --git a/bfd/coff-sparc.c b/bfd/coff-sparc.c
new file mode 100644
index 0000000..304087b
--- /dev/null
+++ b/bfd/coff-sparc.c
@@ -0,0 +1,253 @@
+/* BFD back-end for Sparc COFF files.
+   Copyright 1990, 1991, 1992, 1993 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., 675 Mass Ave, Cambridge, MA 02139, USA.  */
+
+#include "bfd.h"
+#include "sysdep.h"
+#include "libbfd.h"
+#include "obstack.h"
+#include "coff/sparc.h"
+#include "coff/internal.h"
+#include "libcoff.h"
+
+#define BADMAG(x) ((x).f_magic != SPARCMAGIC)
+
+enum reloc_type
+  {
+    R_SPARC_NONE = 0,
+    R_SPARC_8,		R_SPARC_16,		R_SPARC_32, 
+    R_SPARC_DISP8,	R_SPARC_DISP16,		R_SPARC_DISP32, 
+    R_SPARC_WDISP30,	R_SPARC_WDISP22,
+    R_SPARC_HI22,	R_SPARC_22,
+    R_SPARC_13,		R_SPARC_LO10,
+    R_SPARC_GOT10,	R_SPARC_GOT13,		R_SPARC_GOT22,
+    R_SPARC_PC10,	R_SPARC_PC22,
+    R_SPARC_WPLT30,
+    R_SPARC_COPY,
+    R_SPARC_GLOB_DAT,	R_SPARC_JMP_SLOT,
+    R_SPARC_RELATIVE,
+    R_SPARC_UA32,
+    R_SPARC_max
+  };
+
+#if 0
+static CONST char *CONST reloc_type_names[] =
+{
+  "R_SPARC_NONE",
+  "R_SPARC_8",		"R_SPARC_16",		"R_SPARC_32",
+  "R_SPARC_DISP8",	"R_SPARC_DISP16",	"R_SPARC_DISP32",
+  "R_SPARC_WDISP30",	"R_SPARC_WDISP22",
+  "R_SPARC_HI22",	"R_SPARC_22",
+  "R_SPARC_13",		"R_SPARC_LO10",
+  "R_SPARC_GOT10",	"R_SPARC_GOT13",	"R_SPARC_GOT22",
+  "R_SPARC_PC10",	"R_SPARC_PC22",
+  "R_SPARC_WPLT30",
+  "R_SPARC_COPY",
+  "R_SPARC_GLOB_DAT",	"R_SPARC_JMP_SLOT",
+  "R_SPARC_RELATIVE",
+  "R_SPARC_UA32",
+};
+#endif
+
+/* This is stolen pretty directly from elf.c.  */
+static bfd_reloc_status_type
+bfd_coff_generic_reloc PARAMS ((bfd *, arelent *, asymbol *, PTR,
+				asection *, bfd *, char **));
+
+static bfd_reloc_status_type
+bfd_coff_generic_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;
+{
+  if (output_bfd != (bfd *) NULL
+      && (symbol->flags & BSF_SECTION_SYM) == 0
+      && reloc_entry->addend == 0)
+    {
+      reloc_entry->address += input_section->output_offset;
+      return bfd_reloc_ok;
+    }
+
+  return bfd_reloc_continue;
+}
+
+static reloc_howto_type coff_sparc_howto_table[] = 
+{
+  HOWTO(R_SPARC_NONE,    0,0, 0,false,0,complain_overflow_dont,    bfd_coff_generic_reloc,"R_SPARC_NONE",    false,0,0x00000000,true),
+  HOWTO(R_SPARC_8,       0,0, 8,false,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_8",       false,0,0x000000ff,true),
+  HOWTO(R_SPARC_16,      0,1,16,false,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_16",      false,0,0x0000ffff,true),
+  HOWTO(R_SPARC_32,      0,2,32,false,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_32",      false,0,0xffffffff,true),
+  HOWTO(R_SPARC_DISP8,   0,0, 8,true, 0,complain_overflow_signed,  bfd_coff_generic_reloc,"R_SPARC_DISP8",   false,0,0x000000ff,true),
+  HOWTO(R_SPARC_DISP16,  0,1,16,true, 0,complain_overflow_signed,  bfd_coff_generic_reloc,"R_SPARC_DISP16",  false,0,0x0000ffff,true),
+  HOWTO(R_SPARC_DISP32,  0,2,32,true, 0,complain_overflow_signed,  bfd_coff_generic_reloc,"R_SPARC_DISP32",  false,0,0x00ffffff,true),
+  HOWTO(R_SPARC_WDISP30, 2,2,30,true, 0,complain_overflow_signed,  bfd_coff_generic_reloc,"R_SPARC_WDISP30", false,0,0x3fffffff,true),
+  HOWTO(R_SPARC_WDISP22, 2,2,22,true, 0,complain_overflow_signed,  bfd_coff_generic_reloc,"R_SPARC_WDISP22", false,0,0x003fffff,true),
+  HOWTO(R_SPARC_HI22,   10,2,22,false,0,complain_overflow_dont,    bfd_coff_generic_reloc,"R_SPARC_HI22",    false,0,0x003fffff,true),
+  HOWTO(R_SPARC_22,      0,2,22,false,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_22",      false,0,0x003fffff,true),
+  HOWTO(R_SPARC_13,      0,2,13,false,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_13",      false,0,0x00001fff,true),
+  HOWTO(R_SPARC_LO10,    0,2,10,false,0,complain_overflow_dont,    bfd_coff_generic_reloc,"R_SPARC_LO10",    false,0,0x000003ff,true),
+  HOWTO(R_SPARC_GOT10,   0,2,10,false,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_GOT10",   false,0,0x000003ff,true),
+  HOWTO(R_SPARC_GOT13,   0,2,13,false,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_GOT13",   false,0,0x00001fff,true),
+  HOWTO(R_SPARC_GOT22,  10,2,22,false,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_GOT22",   false,0,0x003fffff,true),
+  HOWTO(R_SPARC_PC10,    0,2,10,false,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_PC10",    false,0,0x000003ff,true),
+  HOWTO(R_SPARC_PC22,    0,2,22,false,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_PC22",    false,0,0x003fffff,true),
+  HOWTO(R_SPARC_WPLT30,  0,0,00,false,0,complain_overflow_dont,    bfd_coff_generic_reloc,"R_SPARC_WPLT30",  false,0,0x00000000,true),
+  HOWTO(R_SPARC_COPY,    0,0,00,false,0,complain_overflow_dont,    bfd_coff_generic_reloc,"R_SPARC_COPY",    false,0,0x00000000,true),
+  HOWTO(R_SPARC_GLOB_DAT,0,0,00,false,0,complain_overflow_dont,    bfd_coff_generic_reloc,"R_SPARC_GLOB_DAT",false,0,0x00000000,true),
+  HOWTO(R_SPARC_JMP_SLOT,0,0,00,false,0,complain_overflow_dont,    bfd_coff_generic_reloc,"R_SPARC_JMP_SLOT",false,0,0x00000000,true),
+  HOWTO(R_SPARC_RELATIVE,0,0,00,false,0,complain_overflow_dont,    bfd_coff_generic_reloc,"R_SPARC_RELATIVE",false,0,0x00000000,true),
+  HOWTO(R_SPARC_UA32,    0,0,00,false,0,complain_overflow_dont,    bfd_coff_generic_reloc,"R_SPARC_UA32",    false,0,0x00000000,true),
+};
+
+struct coff_reloc_map {
+  unsigned char bfd_reloc_val;
+  unsigned char coff_reloc_val;
+};
+
+static CONST struct coff_reloc_map sparc_reloc_map[] =
+{
+  { BFD_RELOC_NONE, R_SPARC_NONE, },
+  { BFD_RELOC_16, R_SPARC_16, },
+  { BFD_RELOC_8, R_SPARC_8 },
+  { BFD_RELOC_8_PCREL, R_SPARC_DISP8 },
+  { BFD_RELOC_CTOR, R_SPARC_32 }, /* @@ Assumes 32 bits.  */
+  { BFD_RELOC_32, R_SPARC_32 },
+  { BFD_RELOC_32_PCREL, R_SPARC_DISP32 },
+  { BFD_RELOC_HI22, R_SPARC_HI22 },
+  { BFD_RELOC_LO10, R_SPARC_LO10, },
+  { BFD_RELOC_32_PCREL_S2, R_SPARC_WDISP30 },
+  { BFD_RELOC_SPARC22, R_SPARC_22 },
+  { BFD_RELOC_SPARC13, R_SPARC_13 },
+  { BFD_RELOC_SPARC_GOT10, R_SPARC_GOT10 },
+  { BFD_RELOC_SPARC_GOT13, R_SPARC_GOT13 },
+  { BFD_RELOC_SPARC_GOT22, R_SPARC_GOT22 },
+  { BFD_RELOC_SPARC_PC10, R_SPARC_PC10 },
+  { BFD_RELOC_SPARC_PC22, R_SPARC_PC22 },
+  { BFD_RELOC_SPARC_WPLT30, R_SPARC_WPLT30 },
+  { BFD_RELOC_SPARC_COPY, R_SPARC_COPY },
+  { BFD_RELOC_SPARC_GLOB_DAT, R_SPARC_GLOB_DAT },
+  { BFD_RELOC_SPARC_JMP_SLOT, R_SPARC_JMP_SLOT },
+  { BFD_RELOC_SPARC_RELATIVE, R_SPARC_RELATIVE },
+  { BFD_RELOC_SPARC_WDISP22, R_SPARC_WDISP22 },
+  /*  { BFD_RELOC_SPARC_UA32, R_SPARC_UA32 }, not used?? */
+};
+
+static CONST struct reloc_howto_struct *
+coff_sparc_reloc_type_lookup (abfd, code)
+     bfd *abfd;
+     bfd_reloc_code_real_type code;
+{
+  int i;
+  for (i = 0; i < sizeof (sparc_reloc_map) / sizeof (struct coff_reloc_map); i++)
+    {
+      if (sparc_reloc_map[i].bfd_reloc_val == code)
+	return &coff_sparc_howto_table[(int) sparc_reloc_map[i].coff_reloc_val];
+    }
+  return 0;
+}
+#define coff_bfd_reloc_type_lookup	coff_sparc_reloc_type_lookup
+
+static void
+rtype2howto (cache_ptr, dst)
+     arelent *cache_ptr;
+     struct internal_reloc *dst;
+{
+  BFD_ASSERT (dst->r_type < (unsigned int) R_SPARC_max);
+  cache_ptr->howto = &coff_sparc_howto_table[dst->r_type];
+}
+
+#define RTYPE2HOWTO(internal, relocentry) rtype2howto(internal,relocentry)
+
+#define SWAP_IN_RELOC_OFFSET	bfd_h_get_32
+#define SWAP_OUT_RELOC_OFFSET	bfd_h_put_32
+/* This is just like the standard one, except for the addition of the
+   last line, the adjustment of the addend.  */
+#define CALC_ADDEND(abfd, ptr, reloc, cache_ptr)                \
+  {                                                             \
+    coff_symbol_type *coffsym = (coff_symbol_type *) NULL;      \
+    if (ptr && bfd_asymbol_bfd (ptr) != abfd)                   \
+      coffsym = (obj_symbols (abfd)                             \
+                 + (cache_ptr->sym_ptr_ptr - symbols));         \
+    else if (ptr)                                               \
+      coffsym = coff_symbol_from (abfd, ptr);                   \
+    if (coffsym != (coff_symbol_type *) NULL                    \
+        && coffsym->native->u.syment.n_scnum == 0)              \
+      cache_ptr->addend = 0;                                    \
+    else if (ptr && bfd_asymbol_bfd (ptr) == abfd               \
+             && ptr->section != (asection *) NULL)              \
+      cache_ptr->addend = - (ptr->section->vma + ptr->value);   \
+    else                                                        \
+      cache_ptr->addend = 0;                                    \
+    cache_ptr->addend += reloc.r_offset;			\
+  }
+
+#define __A_MAGIC_SET__
+
+#include "coffcode.h"
+
+bfd_target
+#ifdef TARGET_SYM
+  TARGET_SYM =
+#else
+  sparccoff_vec =
+#endif
+{
+#ifdef TARGET_NAME
+  TARGET_NAME,
+#else
+  "coff-sparc",			/* name */
+#endif
+  bfd_target_coff_flavour,
+  true,			/* data byte order is big */
+  true,			/* header byte order is big */
+
+  (HAS_RELOC | EXEC_P |		/* object flags */
+   HAS_LINENO | HAS_DEBUG |
+   HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT),
+
+  (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
+  0,				/* leading underscore */
+  '/',				/* ar_pad_char */
+  15,				/* ar_max_namelen */
+
+  2,				/* minimum alignment power */
+  bfd_getb64, bfd_getb_signed_64, bfd_putb64,
+     bfd_getb32, bfd_getb_signed_32, bfd_putb32,
+     bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */
+  bfd_getb64, bfd_getb_signed_64, bfd_putb64,
+     bfd_getb32, bfd_getb_signed_32, bfd_putb32,
+     bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */
+
+/* Note that we allow an object file to be treated as a core file as well. */
+    {_bfd_dummy_target, coff_object_p, /* bfd_check_format */
+       bfd_generic_archive_p, coff_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},
+
+  JUMP_TABLE(coff),
+  COFF_SWAP_TABLE,
+};
+
diff --git a/bfd/coffcode.h b/bfd/coffcode.h
index 10cf9ff..66e5ce5 100644
--- a/bfd/coffcode.h
+++ b/bfd/coffcode.h
@@ -2266,16 +2266,23 @@ SUBSUBSECTION
 */
 
 #ifndef CALC_ADDEND
-#define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) 	\
-	    if (ptr && bfd_asymbol_bfd(ptr) == abfd	\
-		&& !bfd_is_com_section(ptr->section)	\
-		&& !(ptr->flags & BSF_OLD_COMMON))	\
-	    {						\
-		cache_ptr->addend = -(ptr->section->vma + ptr->value);	\
-	    }						\
-	    else {					\
-		cache_ptr->addend = 0;			\
-	    }
+#define CALC_ADDEND(abfd, ptr, reloc, cache_ptr)                \
+  {                                                             \
+    coff_symbol_type *coffsym = (coff_symbol_type *) NULL;      \
+    if (ptr && bfd_asymbol_bfd (ptr) != abfd)                   \
+      coffsym = (obj_symbols (abfd)                             \
+                 + (cache_ptr->sym_ptr_ptr - symbols));         \
+    else if (ptr)                                               \
+      coffsym = coff_symbol_from (abfd, ptr);                   \
+    if (coffsym != (coff_symbol_type *) NULL                    \
+        && coffsym->native->u.syment.n_scnum == 0)              \
+      cache_ptr->addend = 0;                                    \
+    else if (ptr && bfd_asymbol_bfd (ptr) == abfd               \
+             && ptr->section != (asection *) NULL)              \
+      cache_ptr->addend = - (ptr->section->vma + ptr->value);   \
+    else                                                        \
+      cache_ptr->addend = 0;                                    \
+  }
 #endif
 
 static boolean