X-Git-Url: https://oss.titaniummirror.com/gitweb?p=msp430-binutils.git;a=blobdiff_plain;f=bfd%2Fmach-o-i386.c;fp=bfd%2Fmach-o-i386.c;h=53de64e826c86c4f335986f62234b0709b79fad4;hp=0000000000000000000000000000000000000000;hb=88750007d7869f178f0ba528f41efd3b74c424cf;hpb=6df9443a374e2b81278c61b8afc0a1eef7db280b

diff --git a/bfd/mach-o-i386.c b/bfd/mach-o-i386.c
new file mode 100644
index 0000000..53de64e
--- /dev/null
+++ b/bfd/mach-o-i386.c
@@ -0,0 +1,293 @@
+/* Intel i386 Mach-O support for BFD.
+   Copyright 2009
+   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 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 "mach-o.h"
+#include "bfd.h"
+#include "libbfd.h"
+#include "libiberty.h"
+
+#define bfd_mach_o_object_p bfd_mach_o_i386_object_p
+#define bfd_mach_o_core_p bfd_mach_o_i386_core_p
+#define bfd_mach_o_mkobject bfd_mach_o_i386_mkobject
+
+static const bfd_target *
+bfd_mach_o_i386_object_p (bfd *abfd)
+{
+  return bfd_mach_o_header_p (abfd, 0, BFD_MACH_O_CPU_TYPE_I386);
+}
+
+static const bfd_target *
+bfd_mach_o_i386_core_p (bfd *abfd)
+{
+  return bfd_mach_o_header_p (abfd,
+                              BFD_MACH_O_MH_CORE, BFD_MACH_O_CPU_TYPE_I386);
+}
+
+static bfd_boolean
+bfd_mach_o_i386_mkobject (bfd *abfd)
+{
+  bfd_mach_o_data_struct *mdata;
+
+  if (!bfd_mach_o_mkobject_init (abfd))
+    return FALSE;
+
+  mdata = bfd_mach_o_get_data (abfd);
+  mdata->header.magic = BFD_MACH_O_MH_MAGIC;
+  mdata->header.cputype = BFD_MACH_O_CPU_TYPE_I386;
+  mdata->header.cpusubtype = BFD_MACH_O_CPU_SUBTYPE_X86_ALL;
+  mdata->header.byteorder = BFD_ENDIAN_LITTLE;
+  mdata->header.version = 1;
+
+  return TRUE;
+}
+
+static reloc_howto_type i386_howto_table[]=
+{
+  HOWTO(BFD_RELOC_32, 0, 2, 32, FALSE, 0,
+	complain_overflow_bitfield,
+	NULL, "32",
+	FALSE, 0xffffffff, 0xffffffff, FALSE),
+  HOWTO(BFD_RELOC_16, 0, 1, 16, FALSE, 0,
+	complain_overflow_bitfield,
+	NULL, "16",
+	FALSE, 0xffff, 0xffff, FALSE),
+  HOWTO(BFD_RELOC_8, 0, 0, 8, FALSE, 0,
+	complain_overflow_bitfield,
+	NULL, "8",
+	FALSE, 0xff, 0xff, FALSE),
+  HOWTO(BFD_RELOC_32_PCREL, 0, 2, 32, TRUE, 0,
+	complain_overflow_bitfield,
+	NULL, "DISP32",
+	FALSE, 0xffffffff, 0xffffffff, TRUE),
+  HOWTO(BFD_RELOC_16_PCREL, 0, 1, 16, TRUE, 0,
+	complain_overflow_bitfield,
+	NULL, "DISP16",
+	FALSE, 0xffff, 0xffff, TRUE),
+  HOWTO(BFD_RELOC_MACH_O_SECTDIFF, 0, 2, 32, FALSE, 0,
+	complain_overflow_bitfield,
+	NULL, "SECTDIFF_32",
+	FALSE, 0xffffffff, 0xffffffff, FALSE),
+  HOWTO(BFD_RELOC_MACH_O_PAIR, 0, 2, 32, FALSE, 0,
+	complain_overflow_bitfield,
+	NULL, "PAIR_32",
+	FALSE, 0xffffffff, 0xffffffff, FALSE),
+};
+
+static bfd_boolean
+bfd_mach_o_i386_swap_reloc_in (arelent *res, bfd_mach_o_reloc_info *reloc)
+{
+  if (reloc->r_scattered)
+    {
+      switch (reloc->r_type)
+        {
+        case BFD_MACH_O_GENERIC_RELOC_PAIR:
+          if (reloc->r_length != 2)
+            return FALSE;
+          res->howto = &i386_howto_table[6];
+          res->address = res[-1].address;
+          return TRUE;
+        case BFD_MACH_O_GENERIC_RELOC_SECTDIFF:
+        case BFD_MACH_O_GENERIC_RELOC_LOCAL_SECTDIFF:
+          if (reloc->r_length != 2)
+            return FALSE;
+          res->howto = &i386_howto_table[5];
+          return TRUE;
+        default:
+          return FALSE;
+        }
+    }
+  else
+    {
+      switch (reloc->r_type)
+        {
+        case BFD_MACH_O_GENERIC_RELOC_VANILLA:
+          switch ((reloc->r_length << 1) | reloc->r_pcrel)
+            {
+            case 0: /* len = 0, pcrel = 0  */
+              res->howto = &i386_howto_table[2];
+              return TRUE;
+            case 2: /* len = 1, pcrel = 0  */
+              res->howto = &i386_howto_table[1];
+              return TRUE;
+            case 3: /* len = 1, pcrel = 1  */
+              res->howto = &i386_howto_table[4];
+              return TRUE;
+            case 4: /* len = 2, pcrel = 0  */
+              res->howto = &i386_howto_table[0];
+              return TRUE;
+            case 5: /* len = 2, pcrel = 1  */
+              res->howto = &i386_howto_table[3];
+              return TRUE;
+            default:
+              return FALSE;
+            }
+          break;
+        default:
+          return FALSE;
+        }
+    }
+}
+
+static bfd_boolean
+bfd_mach_o_i386_swap_reloc_out (arelent *rel, bfd_mach_o_reloc_info *rinfo)
+{
+  rinfo->r_address = rel->address;
+  switch (rel->howto->type)
+    {
+    case BFD_RELOC_32:
+    case BFD_RELOC_32_PCREL:
+    case BFD_RELOC_16:
+    case BFD_RELOC_16_PCREL:
+    case BFD_RELOC_8:
+      rinfo->r_scattered = 0;
+      rinfo->r_type = BFD_MACH_O_GENERIC_RELOC_VANILLA;
+      rinfo->r_pcrel = rel->howto->pc_relative;
+      rinfo->r_length = rel->howto->size; /* Correct in practice.  */
+      if ((*rel->sym_ptr_ptr)->flags & BSF_SECTION_SYM)
+        {
+          rinfo->r_extern = 0;
+          rinfo->r_value = (*rel->sym_ptr_ptr)->section->target_index;
+        }
+      else
+        {
+          rinfo->r_extern = 1;
+          rinfo->r_value = (*rel->sym_ptr_ptr)->udata.i;
+        }
+      break;
+    case BFD_RELOC_MACH_O_SECTDIFF:
+      rinfo->r_scattered = 1;
+      rinfo->r_type = BFD_MACH_O_GENERIC_RELOC_SECTDIFF;
+      rinfo->r_pcrel = 0;
+      rinfo->r_length = 2;
+      rinfo->r_extern = 0;
+      rinfo->r_value = (*rel->sym_ptr_ptr)->value 
+        + (*rel->sym_ptr_ptr)->section->vma;
+      break;
+    case BFD_RELOC_MACH_O_PAIR:
+      rinfo->r_address = 0;
+      rinfo->r_scattered = 1;
+      rinfo->r_type = BFD_MACH_O_GENERIC_RELOC_PAIR;
+      rinfo->r_pcrel = 0;
+      rinfo->r_length = 2;
+      rinfo->r_extern = 0;
+      rinfo->r_value = (*rel->sym_ptr_ptr)->value 
+        + (*rel->sym_ptr_ptr)->section->vma;
+      break;
+    default:
+      return FALSE;
+    }
+  return TRUE;
+}
+
+static reloc_howto_type *
+bfd_mach_o_i386_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
+                                       bfd_reloc_code_real_type code)
+{
+  unsigned int i;
+
+  for (i = 0; i < sizeof (i386_howto_table) / sizeof (*i386_howto_table); i++)
+    if (code == i386_howto_table[i].type)
+      return &i386_howto_table[i];
+  return NULL;
+}
+
+static reloc_howto_type *
+bfd_mach_o_i386_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
+                                       const char *name ATTRIBUTE_UNUSED)
+{
+  return NULL;
+}
+
+static bfd_boolean
+bfd_mach_o_i386_print_thread (bfd *abfd, bfd_mach_o_thread_flavour *thread,
+                              void *vfile, char *buf)
+{
+  FILE *file = (FILE *)vfile;
+
+  switch (thread->flavour)
+    {
+    case BFD_MACH_O_x86_THREAD_STATE:
+      if (thread->size < (8 + 16 * 4))
+        return FALSE;
+      fprintf (file, "   x86_THREAD_STATE:\n");
+      fprintf (file, "    flavor: 0x%08lx  count: 0x%08lx\n",
+               (unsigned long)bfd_get_32 (abfd, buf + 0),
+               (unsigned long)bfd_get_32 (abfd, buf + 4));
+      fprintf (file, "     eax: %08lx  ebx: %08lx  ecx: %08lx  edx: %08lx\n",
+               (unsigned long)bfd_get_32 (abfd, buf + 8),
+               (unsigned long)bfd_get_32 (abfd, buf + 12),
+               (unsigned long)bfd_get_32 (abfd, buf + 16),
+               (unsigned long)bfd_get_32 (abfd, buf + 20));
+      fprintf (file, "     edi: %08lx  esi: %08lx  ebp: %08lx  esp: %08lx\n",
+               (unsigned long)bfd_get_32 (abfd, buf + 24),
+               (unsigned long)bfd_get_32 (abfd, buf + 28),
+               (unsigned long)bfd_get_32 (abfd, buf + 32),
+               (unsigned long)bfd_get_32 (abfd, buf + 36));
+      fprintf (file, "      ss: %08lx  flg: %08lx  eip: %08lx   cs: %08lx\n",
+               (unsigned long)bfd_get_32 (abfd, buf + 40),
+               (unsigned long)bfd_get_32 (abfd, buf + 44),
+               (unsigned long)bfd_get_32 (abfd, buf + 48),
+               (unsigned long)bfd_get_32 (abfd, buf + 52));
+      fprintf (file, "      ds: %08lx   es: %08lx   fs: %08lx   gs: %08lx\n",
+               (unsigned long)bfd_get_32 (abfd, buf + 56),
+               (unsigned long)bfd_get_32 (abfd, buf + 60),
+               (unsigned long)bfd_get_32 (abfd, buf + 64),
+               (unsigned long)bfd_get_32 (abfd, buf + 68));
+      return TRUE;
+    case BFD_MACH_O_x86_FLOAT_STATE:
+      if (thread->size < 8)
+        return FALSE;
+      fprintf (file, "   x86_FLOAT_STATE:\n");
+      fprintf (file, "    flavor: 0x%08lx  count: 0x%08lx\n",
+               (unsigned long)bfd_get_32 (abfd, buf + 0),
+               (unsigned long)bfd_get_32 (abfd, buf + 4));
+      return TRUE;
+    case BFD_MACH_O_x86_EXCEPTION_STATE:
+      if (thread->size < 8 + 3 * 4)
+        return FALSE;
+      fprintf (file, "   x86_EXCEPTION_STATE:\n");
+      fprintf (file, "    flavor: 0x%08lx  count: 0x%08lx\n",
+               (unsigned long)bfd_get_32 (abfd, buf + 0),
+               (unsigned long)bfd_get_32 (abfd, buf + 4));
+      fprintf (file, "    trapno: %08lx  err: %08lx  faultaddr: %08lx\n",
+               (unsigned long)bfd_get_32 (abfd, buf + 8),
+               (unsigned long)bfd_get_32 (abfd, buf + 12),
+               (unsigned long)bfd_get_32 (abfd, buf + 16));
+      return TRUE;
+    default:
+      break;
+    }
+  return FALSE;
+}
+
+#define bfd_mach_o_swap_reloc_in bfd_mach_o_i386_swap_reloc_in
+#define bfd_mach_o_swap_reloc_out bfd_mach_o_i386_swap_reloc_out
+#define bfd_mach_o_print_thread bfd_mach_o_i386_print_thread
+
+#define bfd_mach_o_bfd_reloc_type_lookup bfd_mach_o_i386_bfd_reloc_type_lookup 
+#define bfd_mach_o_bfd_reloc_name_lookup bfd_mach_o_i386_bfd_reloc_name_lookup
+
+#define TARGET_NAME 		mach_o_i386_vec
+#define TARGET_STRING 		"mach-o-i386"
+#define TARGET_BIG_ENDIAN 	0
+#define TARGET_ARCHIVE 		0
+#include "mach-o-target.c"