Initial revision

1 files changed, 440 insertions, 0 deletions

diff --git a/bfd/nlm32-sparc.c b/bfd/nlm32-sparc.c
new file mode 100644
index 0000000000..5963adbc70
--- /dev/null
+++ b/bfd/nlm32-sparc.c
@@ -0,0 +1,440 @@
+/* Support for 32-bit SPARC NLM (NetWare Loadable Module)
+   Copyright (C) 1993 Free Software Foundation, Inc.
+
+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"
+
+#define ARCH_SIZE 32
+
+#include "nlm/sparc32-ext.h"
+#define Nlm_External_Fixed_Header	Nlm32_sparc_External_Fixed_Header
+
+#include "libnlm.h"
+
+static boolean nlm_sparc_read_reloc
+  PARAMS ((bfd *, nlmNAME(symbol_type) *, asection **, arelent *));
+static boolean nlm_sparc_write_reloc
+  PARAMS ((bfd *, asection *, arelent *));
+static boolean nlm_sparc_mangle_relocs
+  PARAMS ((bfd *, asection *, PTR, bfd_vma, bfd_size_type));
+static boolean nlm_sparc_read_import
+  PARAMS ((bfd *, nlmNAME(symbol_type) *));
+static boolean nlm_sparc_write_import
+  PARAMS ((bfd *, asection *, arelent *));
+static boolean nlm_sparc_write_external
+  PARAMS ((bfd *, bfd_size_type, asymbol *, struct reloc_and_sec *));
+
+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
+
+static reloc_howto_type nlm32_sparc_howto_table[] = 
+{
+  HOWTO(R_SPARC_NONE,    0,0, 0,false,0,complain_overflow_dont,    0,"R_SPARC_NONE",    false,0,0x00000000,true),
+  HOWTO(R_SPARC_8,       0,0, 8,false,0,complain_overflow_bitfield,0,"R_SPARC_8",       false,0,0x000000ff,true),
+  HOWTO(R_SPARC_16,      0,1,16,false,0,complain_overflow_bitfield,0,"R_SPARC_16",      false,0,0x0000ffff,true),
+  HOWTO(R_SPARC_32,      0,2,32,false,0,complain_overflow_bitfield,0,"R_SPARC_32",      false,0,0xffffffff,true),
+  HOWTO(R_SPARC_DISP8,   0,0, 8,true, 0,complain_overflow_signed,  0,"R_SPARC_DISP8",   false,0,0x000000ff,true),
+  HOWTO(R_SPARC_DISP16,  0,1,16,true, 0,complain_overflow_signed,  0,"R_SPARC_DISP16",  false,0,0x0000ffff,true),
+  HOWTO(R_SPARC_DISP32,  0,2,32,true, 0,complain_overflow_signed,  0,"R_SPARC_DISP32",  false,0,0x00ffffff,true),
+  HOWTO(R_SPARC_WDISP30, 2,2,30,true, 0,complain_overflow_signed,  0,"R_SPARC_WDISP30", false,0,0x3fffffff,true),
+  HOWTO(R_SPARC_WDISP22, 2,2,22,true, 0,complain_overflow_signed,  0,"R_SPARC_WDISP22", false,0,0x003fffff,true),
+  HOWTO(R_SPARC_HI22,   10,2,22,false,0,complain_overflow_dont,    0,"R_SPARC_HI22",    false,0,0x003fffff,true),
+  HOWTO(R_SPARC_22,      0,2,22,false,0,complain_overflow_bitfield,0,"R_SPARC_22",      false,0,0x003fffff,true),
+  HOWTO(R_SPARC_13,      0,2,13,false,0,complain_overflow_bitfield,0,"R_SPARC_13",      false,0,0x00001fff,true),
+  HOWTO(R_SPARC_LO10,    0,2,10,false,0,complain_overflow_dont,    0,"R_SPARC_LO10",    false,0,0x000003ff,true),
+  HOWTO(R_SPARC_GOT10,   0,2,10,false,0,complain_overflow_bitfield,0,"R_SPARC_GOT10",   false,0,0x000003ff,true),
+  HOWTO(R_SPARC_GOT13,   0,2,13,false,0,complain_overflow_bitfield,0,"R_SPARC_GOT13",   false,0,0x00001fff,true),
+  HOWTO(R_SPARC_GOT22,  10,2,22,false,0,complain_overflow_bitfield,0,"R_SPARC_GOT22",   false,0,0x003fffff,true),
+  HOWTO(R_SPARC_PC10,    0,2,10,false,0,complain_overflow_bitfield,0,"R_SPARC_PC10",    false,0,0x000003ff,true),
+  HOWTO(R_SPARC_PC22,    0,2,22,false,0,complain_overflow_bitfield,0,"R_SPARC_PC22",    false,0,0x003fffff,true),
+  HOWTO(R_SPARC_WPLT30,  0,0,00,false,0,complain_overflow_dont,    0,"R_SPARC_WPLT30",  false,0,0x00000000,true),
+  HOWTO(R_SPARC_COPY,    0,0,00,false,0,complain_overflow_dont,    0,"R_SPARC_COPY",    false,0,0x00000000,true),
+  HOWTO(R_SPARC_GLOB_DAT,0,0,00,false,0,complain_overflow_dont,    0,"R_SPARC_GLOB_DAT",false,0,0x00000000,true),
+  HOWTO(R_SPARC_JMP_SLOT,0,0,00,false,0,complain_overflow_dont,    0,"R_SPARC_JMP_SLOT",false,0,0x00000000,true),
+  HOWTO(R_SPARC_RELATIVE,0,0,00,false,0,complain_overflow_dont,    0,"R_SPARC_RELATIVE",false,0,0x00000000,true),
+  HOWTO(R_SPARC_UA32,    0,0,00,false,0,complain_overflow_dont,    0,"R_SPARC_UA32",    false,0,0x00000000,true),
+};
+
+/* Read a NetWare sparc reloc.  */
+
+struct nlm32_sparc_reloc_ext {
+  unsigned char offset[4];
+  unsigned char addend[4];
+  unsigned char type[1];
+  unsigned char pad1[3];
+};
+
+static boolean
+nlm_sparc_read_reloc (abfd, sym, secp, rel)
+     bfd *abfd;
+     nlmNAME(symbol_type) *sym;
+     asection **secp;
+     arelent *rel;
+{
+  bfd_vma val, addend;
+  unsigned int index;
+  unsigned int type;
+  struct nlm32_sparc_reloc_ext tmp_reloc;
+  asection *code_sec, *data_sec;
+
+  if (bfd_read (&tmp_reloc, 12, 1, abfd) != 12)
+    return false;
+
+  code_sec = bfd_get_section_by_name (abfd, NLM_CODE_NAME);
+  data_sec = bfd_get_section_by_name (abfd, NLM_INITIALIZED_DATA_NAME);
+
+  *secp = code_sec;
+
+  val = bfd_get_32 (abfd, tmp_reloc.offset);
+  addend = bfd_get_32 (abfd, tmp_reloc.addend);
+  type = bfd_get_8 (abfd, tmp_reloc.type);
+
+  rel->address = val;
+  rel->addend = addend;
+  rel->howto = NULL;
+
+  for (index = 0;
+       index < sizeof(nlm32_sparc_howto_table) / sizeof(reloc_howto_type);
+       index++)
+    if (nlm32_sparc_howto_table[index].type == type) {
+      rel->howto = &nlm32_sparc_howto_table[index];
+      break;
+    }
+
+#ifdef DEBUG
+  fprintf (stderr, "%s:  address = %08lx, addend = %08lx, type = %d, howto = %08lx\n",
+	   __FUNCTION__, rel->address, rel->addend, type, rel->howto);
+#endif
+  return true;
+
+}
+
+/* Write a NetWare sparc reloc.  */
+
+static boolean
+nlm_sparc_write_reloc (abfd, sec, rel)
+     bfd *abfd;
+     asection *sec;
+     arelent *rel;
+{
+  bfd_vma val;
+  struct nlm32_sparc_reloc_ext tmp_reloc;
+  unsigned int index;
+  int type = -1;
+  reloc_howto_type *tmp;
+
+  
+  for (index = 0;
+       index < sizeof (nlm32_sparc_howto_table) / sizeof(reloc_howto_type);
+       index++) {
+    tmp = &nlm32_sparc_howto_table[index];
+
+    if (tmp->rightshift == rel->howto->rightshift
+	&& tmp->size == rel->howto->size
+	&& tmp->bitsize == rel->howto->bitsize
+	&& tmp->pc_relative == rel->howto->pc_relative
+	&& tmp->bitpos == rel->howto->bitpos
+	&& tmp->src_mask == rel->howto->src_mask
+	&& tmp->dst_mask == rel->howto->dst_mask) {
+      type = tmp->type;
+      break;
+    }
+  }
+  if (type == -1)
+    abort();
+
+  /*
+   * Netware wants a list of relocs for each address.
+   * Format is:
+   *	long	offset
+   *	long	addend
+   *	char	type
+   * That should be it.
+   */
+
+  /* The value we write out is the offset into the appropriate
+     segment.  This offset is the section vma, adjusted by the vma of
+     the lowest section in that segment, plus the address of the
+     relocation.  */
+#if 0
+  val = bfd_get_section_vma (abfd, (*rel->sym_ptr_ptr)->section) + rel->address;
+#else
+  val = bfd_get_section_vma (abfd, sec) + rel->address;
+#endif
+
+#ifdef DEBUG
+  fprintf (stderr, "%s:  val = %08lx, addend = %08lx, type = %d\n",
+	   __FUNCTION__, val, rel->addend, rel->howto->type);
+#endif
+  bfd_put_32 (abfd, val, tmp_reloc.offset);
+  bfd_put_32 (abfd, rel->addend, tmp_reloc.addend);
+  bfd_put_8 (abfd, (short)(rel->howto->type), tmp_reloc.type);
+
+  if (bfd_write (&tmp_reloc, 12, 1, abfd) != 12)
+    return false;
+
+  return true;
+}
+
+/* Mangle relocs for SPARC NetWare.  We can just use the standard
+   SPARC relocs.  */
+
+static boolean
+nlm_sparc_mangle_relocs (abfd, sec, data, offset, count)
+     bfd *abfd;
+     asection *sec;
+     PTR data;
+     bfd_vma offset;
+     bfd_size_type count;
+{
+  return true;
+}
+
+/* Read a NetWare sparc import record */
+static boolean
+nlm_sparc_read_import (abfd, sym)
+     bfd *abfd;
+     nlmNAME(symbol_type) *sym;
+{
+  struct nlm_relent *nlm_relocs;	/* relocation records for symbol */
+  bfd_size_type rcount;			/* number of relocs */
+  bfd_byte temp[NLM_TARGET_LONG_SIZE];	/* temporary 32-bit value */
+  unsigned char symlength;		/* length of symbol name */
+  char *name;
+  
+  /*
+   * First, read in the number of relocation
+   * entries for this symbol
+   */
+  if (bfd_read ((PTR) temp, 4, 1, abfd) != 4)
+    return false;
+  
+  rcount = bfd_get_32 (abfd, temp);
+  
+  /*
+   * Next, read in the length of the symbol
+   */
+  
+  if (bfd_read ((PTR) &symlength, sizeof (symlength), 1, abfd)
+      != sizeof (symlength))
+    return false;
+  sym -> symbol.the_bfd = abfd;
+  name = bfd_alloc (abfd, symlength + 1);
+  if (name == NULL)
+    return false;
+  
+  /*
+   * Then read in the symbol
+   */
+  
+  if (bfd_read (name, symlength, 1, abfd) != symlength)
+    return false;
+  name[symlength] = '\0';
+  sym -> symbol.name = name;
+  sym -> symbol.flags = 0;
+  sym -> symbol.value = 0;
+  sym -> symbol.section = bfd_und_section_ptr;
+  
+  /*
+   * Next, start reading in the relocs.
+   */
+  
+  nlm_relocs = ((struct nlm_relent *)
+		bfd_alloc (abfd, rcount * sizeof (struct nlm_relent)));
+  if (!nlm_relocs)
+    return false;
+  sym -> relocs = nlm_relocs;
+  sym -> rcnt = 0;
+  while (sym -> rcnt < rcount)
+    {
+      asection *section;
+      
+      if (nlm_sparc_read_reloc (abfd, sym, &section,
+			      &nlm_relocs -> reloc)
+	  == false)
+	return false;
+      nlm_relocs -> section = section;
+      nlm_relocs++;
+      sym -> rcnt++;
+    }
+  return true;
+}
+
+static boolean
+nlm_sparc_write_import (abfd, sec, rel)
+     bfd *abfd;
+     asection *sec;
+     arelent *rel;
+{
+  char temp[4];
+  asection *code, *data, *bss, *symsec;
+  bfd_vma base;
+
+  code = bfd_get_section_by_name (abfd, NLM_CODE_NAME);
+  data = bfd_get_section_by_name (abfd, NLM_INITIALIZED_DATA_NAME);
+  bss = bfd_get_section_by_name (abfd, NLM_UNINITIALIZED_DATA_NAME);
+  symsec = (*rel->sym_ptr_ptr)->section;
+
+  if (symsec == code) {
+    base = 0;
+  } else if (symsec == data) {
+    base = bfd_section_size (abfd, code);
+  } else if (symsec == bss) {
+    base = bfd_section_size (abfd, code) + bfd_section_size (abfd, data);
+  } else
+    base = 0;
+
+#ifdef DEBUG
+  fprintf (stderr, "%s:  <%x, 1>\n\t",
+	   __FUNCTION__, base + (*rel->sym_ptr_ptr)->value);
+#endif
+  bfd_put_32 (abfd, base + (*rel->sym_ptr_ptr)->value, temp);
+  if (bfd_write ((PTR)temp, 4, 1, abfd) != 4)
+    return false;
+  bfd_put_32 (abfd, 1, temp);
+  if (bfd_write ((PTR)temp, 4, 1, abfd) != 4)
+    return false;
+  if (nlm_sparc_write_reloc (abfd, sec, rel) == false)
+    return false;
+  return true;
+}
+
+/* Write out an external reference.  */
+
+static boolean
+nlm_sparc_write_external (abfd, count, sym, relocs)
+     bfd *abfd;
+     bfd_size_type count;
+     asymbol *sym;
+     struct reloc_and_sec *relocs;
+{
+  unsigned int i;
+  bfd_byte len;
+  unsigned char temp[NLM_TARGET_LONG_SIZE];
+
+  bfd_put_32 (abfd, count, temp);
+  if (bfd_write (temp, sizeof(temp), 1, abfd) != sizeof (temp))
+    return false;
+
+  len = strlen (sym->name);
+  if ((bfd_write (&len, sizeof (bfd_byte), 1, abfd) != sizeof(bfd_byte))
+      || bfd_write (sym->name, len, 1, abfd) != len)
+    return false;
+
+  for (i = 0; i < count; i++)
+    {
+      if (nlm_sparc_write_reloc (abfd, relocs[i].sec,
+				 relocs[i].rel) == false)
+	return false;
+    }
+
+  return true;
+}
+
+static boolean
+nlm_sparc_write_export (abfd, sym, value)
+     bfd *abfd;
+     asymbol *sym;
+     bfd_vma value;
+{
+  bfd_byte len;
+  bfd_byte temp[4];
+
+#ifdef DEBUG
+  fprintf (stderr, "%s: <%x, %d, %s>\n",
+	   __FUNCTION__, value, strlen (sym->name), sym->name);
+#endif
+  bfd_put_32 (abfd, value, temp);
+  len = strlen (sym->name);
+
+  if (bfd_write (temp, 4, 1, abfd) != 4
+      || bfd_write (&len, 1, 1, abfd) != 1
+      || bfd_write (sym->name, len, 1, abfd) != len)
+    return false;
+
+  return true;
+}
+
+#undef nlm_swap_fixed_header_in
+#undef nlm_swap_fixed_header_out
+
+#include "nlmswap.h"
+
+static const struct nlm_backend_data nlm32_sparc_backend =
+{
+  "NetWare SPARC Module   \032",
+  sizeof (Nlm32_sparc_External_Fixed_Header),
+  0,	/* optional_prefix_size */
+  bfd_arch_sparc,
+  0,
+  false,
+  0,	/* backend_object_p */
+  0,	/* write_prefix_func */
+  nlm_sparc_read_reloc,
+  nlm_sparc_mangle_relocs,
+  nlm_sparc_read_import,
+  nlm_sparc_write_import,
+  0,	/* set_public_section */
+  0,	/* get_public_offset */
+  nlm_swap_fixed_header_in,
+  nlm_swap_fixed_header_out,
+  nlm_sparc_write_external,
+  nlm_sparc_write_export
+};
+
+#define TARGET_BIG_NAME		"nlm32-sparc"
+#define TARGET_BIG_SYM		nlmNAME(sparc_vec)
+#define TARGET_BACKEND_DATA		&nlm32_sparc_backend
+
+#include "nlm-target.h"