X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=bfd%2Fmach-o-x86-64.c;h=9a6b58bc271f6139ab12c95acc9e4a36aafd79bc;hb=4636b7db71d4ca8ccf999a837e932ee1d009ad42;hp=2248d976a74e5e3da4d409454ebd48c76b05c6cb;hpb=46d1c23bceb2b8923af0d00a7f536a88524d6a74;p=deliverable%2Fbinutils-gdb.git

diff --git a/bfd/mach-o-x86-64.c b/bfd/mach-o-x86-64.c
index 2248d976a7..9a6b58bc27 100644
--- a/bfd/mach-o-x86-64.c
+++ b/bfd/mach-o-x86-64.c
@@ -1,6 +1,5 @@
 /* Intel x86-64 Mach-O support for BFD.
-   Copyright 2010
-   Free Software Foundation, Inc.
+   Copyright (C) 2010-2020 Free Software Foundation, Inc.
 
    This file is part of BFD, the Binary File Descriptor library.
 
@@ -20,27 +19,27 @@
    MA 02110-1301, USA.  */
 
 #include "sysdep.h"
-#include "mach-o.h"
 #include "bfd.h"
 #include "libbfd.h"
 #include "libiberty.h"
+#include "mach-o.h"
 #include "mach-o/x86-64.h"
 
 #define bfd_mach_o_object_p bfd_mach_o_x86_64_object_p
 #define bfd_mach_o_core_p bfd_mach_o_x86_64_core_p
 #define bfd_mach_o_mkobject bfd_mach_o_x86_64_mkobject
 
-static const bfd_target *
+static bfd_cleanup
 bfd_mach_o_x86_64_object_p (bfd *abfd)
 {
-  return bfd_mach_o_header_p (abfd, 0, BFD_MACH_O_CPU_TYPE_X86_64);
+  return bfd_mach_o_header_p (abfd, 0, 0, BFD_MACH_O_CPU_TYPE_X86_64);
 }
 
-static const bfd_target *
+static bfd_cleanup
 bfd_mach_o_x86_64_core_p (bfd *abfd)
 {
-  return bfd_mach_o_header_p (abfd,
-                              BFD_MACH_O_MH_CORE, BFD_MACH_O_CPU_TYPE_X86_64);
+  return bfd_mach_o_header_p (abfd, 0,
+			      BFD_MACH_O_MH_CORE, BFD_MACH_O_CPU_TYPE_X86_64);
 }
 
 static bfd_boolean
@@ -54,7 +53,8 @@ bfd_mach_o_x86_64_mkobject (bfd *abfd)
   mdata = bfd_mach_o_get_data (abfd);
   mdata->header.magic = BFD_MACH_O_MH_MAGIC_64;
   mdata->header.cputype = BFD_MACH_O_CPU_TYPE_X86_64;
-  mdata->header.cpusubtype = BFD_MACH_O_CPU_SUBTYPE_X86_ALL;
+  mdata->header.cpusubtype =
+    BFD_MACH_O_CPU_SUBTYPE_X86_ALL | BFD_MACH_O_CPU_SUBTYPE_LIB64;
   mdata->header.byteorder = BFD_ENDIAN_LITTLE;
   mdata->header.version = 2;
 
@@ -101,11 +101,11 @@ static reloc_howto_type x86_64_howto_table[]=
 	NULL, "GOT_LOAD",
 	FALSE, 0xffffffff, 0xffffffff, TRUE),
   /* 8 */
-  HOWTO(BFD_RELOC_MACH_O_X86_64_SUBTRACTOR32, 0, 2, 32, FALSE, 0,
+  HOWTO(BFD_RELOC_MACH_O_SUBTRACTOR32, 0, 2, 32, FALSE, 0,
 	complain_overflow_bitfield,
 	NULL, "SUBTRACTOR32",
 	FALSE, 0xffffffff, 0xffffffff, FALSE),
-  HOWTO(BFD_RELOC_MACH_O_X86_64_SUBTRACTOR64, 0, 4, 64, FALSE, 0,
+  HOWTO(BFD_RELOC_MACH_O_SUBTRACTOR64, 0, 4, 64, FALSE, 0,
 	complain_overflow_bitfield,
 	NULL, "SUBTRACTOR64",
 	FALSE, MINUS_ONE, MINUS_ONE, FALSE),
@@ -117,99 +117,120 @@ static reloc_howto_type x86_64_howto_table[]=
 	complain_overflow_bitfield,
 	NULL, "BRANCH8",
 	FALSE, 0xff, 0xff, TRUE),
+  /* 12 */
+  HOWTO(BFD_RELOC_MACH_O_X86_64_TLV, 0, 2, 32, TRUE, 0,
+	complain_overflow_bitfield,
+	NULL, "TLV",
+	FALSE, 0xffffffff, 0xffffffff, TRUE),
 };
 
 static bfd_boolean
-bfd_mach_o_x86_64_swap_reloc_in (arelent *res, bfd_mach_o_reloc_info *reloc)
+bfd_mach_o_x86_64_canonicalize_one_reloc (bfd *       abfd,
+					  struct mach_o_reloc_info_external * raw,
+					  arelent *   res,
+					  asymbol **  syms,
+					  arelent *   res_base ATTRIBUTE_UNUSED)
 {
+  bfd_mach_o_reloc_info reloc;
+
+  if (!bfd_mach_o_pre_canonicalize_one_reloc (abfd, raw, &reloc, res, syms))
+    return FALSE;
+
   /* On x86-64, scattered relocs are not used.  */
-  if (reloc->r_scattered)
+  if (reloc.r_scattered)
     return FALSE;
 
-  switch (reloc->r_type)
+  switch (reloc.r_type)
     {
     case BFD_MACH_O_X86_64_RELOC_UNSIGNED:
-      if (reloc->r_pcrel)
-        return FALSE;
-      switch (reloc->r_length)
-        {
-        case 2:
-          res->howto = &x86_64_howto_table[1];
-          return TRUE;
-        case 3:
-          res->howto = &x86_64_howto_table[0];
-          return TRUE;
-        default:
-          return FALSE;
-        }
+      if (reloc.r_pcrel)
+	return FALSE;
+      switch (reloc.r_length)
+	{
+	case 2:
+	  res->howto = &x86_64_howto_table[1];
+	  return TRUE;
+	case 3:
+	  res->howto = &x86_64_howto_table[0];
+	  return TRUE;
+	default:
+	  return FALSE;
+	}
     case BFD_MACH_O_X86_64_RELOC_SIGNED:
-      if (reloc->r_length == 2 && reloc->r_pcrel)
-        {
-          res->howto = &x86_64_howto_table[2];
-          return TRUE;
-        }
+      if (reloc.r_length == 2 && reloc.r_pcrel)
+	{
+	  res->howto = &x86_64_howto_table[2];
+	  return TRUE;
+	}
       break;
     case BFD_MACH_O_X86_64_RELOC_BRANCH:
-      if (!reloc->r_pcrel)
-        return FALSE;
-      switch (reloc->r_length)
-        {
-        case 2:
-          res->howto = &x86_64_howto_table[6];
-          return TRUE;
-        default:
-          return FALSE;
-        }
+      if (!reloc.r_pcrel)
+	return FALSE;
+      switch (reloc.r_length)
+	{
+	case 2:
+	  res->howto = &x86_64_howto_table[6];
+	  return TRUE;
+	default:
+	  return FALSE;
+	}
       break;
     case BFD_MACH_O_X86_64_RELOC_GOT_LOAD:
-      if (reloc->r_length == 2 && reloc->r_pcrel && reloc->r_extern)
-        {
-          res->howto = &x86_64_howto_table[7];
-          return TRUE;
-        }
+      if (reloc.r_length == 2 && reloc.r_pcrel && reloc.r_extern)
+	{
+	  res->howto = &x86_64_howto_table[7];
+	  return TRUE;
+	}
       break;
     case BFD_MACH_O_X86_64_RELOC_GOT:
-      if (reloc->r_length == 2 && reloc->r_pcrel && reloc->r_extern)
-        {
-          res->howto = &x86_64_howto_table[10];
-          return TRUE;
-        }
+      if (reloc.r_length == 2 && reloc.r_pcrel && reloc.r_extern)
+	{
+	  res->howto = &x86_64_howto_table[10];
+	  return TRUE;
+	}
       break;
     case BFD_MACH_O_X86_64_RELOC_SUBTRACTOR:
-      if (reloc->r_pcrel)
-        return FALSE;
-      switch (reloc->r_length)
-        {
-        case 2:
-          res->howto = &x86_64_howto_table[8];
-          return TRUE;
-        case 3:
-          res->howto = &x86_64_howto_table[9];
-          return TRUE;
-        default:
-          return FALSE;
-        }
+      if (reloc.r_pcrel)
+	return FALSE;
+      switch (reloc.r_length)
+	{
+	case 2:
+	  res->howto = &x86_64_howto_table[8];
+	  return TRUE;
+	case 3:
+	  res->howto = &x86_64_howto_table[9];
+	  return TRUE;
+	default:
+	  return FALSE;
+	}
       break;
     case BFD_MACH_O_X86_64_RELOC_SIGNED_1:
-      if (reloc->r_length == 2 && reloc->r_pcrel)
-        {
-          res->howto = &x86_64_howto_table[3];
-          return TRUE;
-        }
+      if (reloc.r_length == 2 && reloc.r_pcrel)
+	{
+	  res->howto = &x86_64_howto_table[3];
+	  return TRUE;
+	}
       break;
     case BFD_MACH_O_X86_64_RELOC_SIGNED_2:
-      if (reloc->r_length == 2 && reloc->r_pcrel)
-        {
-          res->howto = &x86_64_howto_table[4];
-          return TRUE;
-        }
+      if (reloc.r_length == 2 && reloc.r_pcrel)
+	{
+	  res->howto = &x86_64_howto_table[4];
+	  return TRUE;
+	}
       break;
     case BFD_MACH_O_X86_64_RELOC_SIGNED_4:
-      if (reloc->r_length == 2 && reloc->r_pcrel)
-        {
-          res->howto = &x86_64_howto_table[5];
-          return TRUE;
-        }
+      if (reloc.r_length == 2 && reloc.r_pcrel)
+	{
+	  res->howto = &x86_64_howto_table[5];
+	  return TRUE;
+	}
+      break;
+    case BFD_MACH_O_X86_64_RELOC_TLV:
+      if (reloc.r_length == 2 && reloc.r_pcrel && reloc.r_extern)
+	{
+	  res->howto = &x86_64_howto_table[12];
+	  return TRUE;
+	}
       break;
     default:
       return FALSE;
@@ -224,33 +245,74 @@ bfd_mach_o_x86_64_swap_reloc_out (arelent *rel, bfd_mach_o_reloc_info *rinfo)
   rinfo->r_scattered = 0;
   switch (rel->howto->type)
     {
+    case BFD_RELOC_32:
+      rinfo->r_type = BFD_MACH_O_X86_64_RELOC_UNSIGNED;
+      rinfo->r_pcrel = 0;
+      rinfo->r_length = 2;
+      break;
     case BFD_RELOC_64:
       rinfo->r_type = BFD_MACH_O_X86_64_RELOC_UNSIGNED;
       rinfo->r_pcrel = 0;
       rinfo->r_length = 3;
       break;
     case BFD_RELOC_32_PCREL:
+      rinfo->r_type = BFD_MACH_O_X86_64_RELOC_SIGNED;
+      rinfo->r_pcrel = 1;
+      rinfo->r_length = 2;
+      break;
+    case BFD_RELOC_MACH_O_X86_64_PCREL32_1:
+      rinfo->r_type = BFD_MACH_O_X86_64_RELOC_SIGNED_1;
+      rinfo->r_pcrel = 1;
+      rinfo->r_length = 2;
+      break;
+    case BFD_RELOC_MACH_O_X86_64_PCREL32_2:
+      rinfo->r_type = BFD_MACH_O_X86_64_RELOC_SIGNED_2;
+      rinfo->r_pcrel = 1;
+      rinfo->r_length = 2;
+      break;
+    case BFD_RELOC_MACH_O_X86_64_PCREL32_4:
+      rinfo->r_type = BFD_MACH_O_X86_64_RELOC_SIGNED_4;
+      rinfo->r_pcrel = 1;
+      rinfo->r_length = 2;
+      break;
+    case BFD_RELOC_MACH_O_X86_64_BRANCH32:
       rinfo->r_type = BFD_MACH_O_X86_64_RELOC_BRANCH;
       rinfo->r_pcrel = 1;
       rinfo->r_length = 2;
       break;
-    case BFD_RELOC_MACH_O_X86_64_SUBTRACTOR64:
+    case BFD_RELOC_MACH_O_SUBTRACTOR32:
+      rinfo->r_type = BFD_MACH_O_X86_64_RELOC_SUBTRACTOR;
+      rinfo->r_pcrel = 0;
+      rinfo->r_length = 2;
+      break;
+    case BFD_RELOC_MACH_O_SUBTRACTOR64:
       rinfo->r_type = BFD_MACH_O_X86_64_RELOC_SUBTRACTOR;
       rinfo->r_pcrel = 0;
       rinfo->r_length = 3;
       break;
+    case BFD_RELOC_MACH_O_X86_64_GOT:
+      rinfo->r_type = BFD_MACH_O_X86_64_RELOC_GOT;
+      rinfo->r_pcrel = 1;
+      rinfo->r_length = 2;
+      break;
     case BFD_RELOC_MACH_O_X86_64_GOT_LOAD:
       rinfo->r_type = BFD_MACH_O_X86_64_RELOC_GOT_LOAD;
       rinfo->r_pcrel = 1;
       rinfo->r_length = 2;
       break;
+    case BFD_RELOC_MACH_O_X86_64_TLV:
+      rinfo->r_type = BFD_MACH_O_X86_64_RELOC_TLV;
+      rinfo->r_pcrel = 1;
+      rinfo->r_length = 2;
+      break;
     default:
       return FALSE;
     }
   if ((*rel->sym_ptr_ptr)->flags & BSF_SECTION_SYM)
     {
       rinfo->r_extern = 0;
-      rinfo->r_value = (*rel->sym_ptr_ptr)->section->target_index;
+      rinfo->r_value =
+	(*rel->sym_ptr_ptr)->section->output_section->target_index;
     }
   else
     {
@@ -262,7 +324,7 @@ bfd_mach_o_x86_64_swap_reloc_out (arelent *rel, bfd_mach_o_reloc_info *rinfo)
 
 static reloc_howto_type *
 bfd_mach_o_x86_64_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
-                                         bfd_reloc_code_real_type code)
+					 bfd_reloc_code_real_type code)
 {
   unsigned int i;
 
@@ -276,21 +338,52 @@ bfd_mach_o_x86_64_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
 
 static reloc_howto_type *
 bfd_mach_o_x86_64_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
-                                         const char *name ATTRIBUTE_UNUSED)
+					 const char *name ATTRIBUTE_UNUSED)
 {
   return NULL;
 }
 
-#define bfd_mach_o_swap_reloc_in bfd_mach_o_x86_64_swap_reloc_in
+static bfd_boolean
+bfd_mach_o_section_type_valid_for_x86_64 (unsigned long val)
+{
+  if (val == BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS
+      || val == BFD_MACH_O_S_LAZY_SYMBOL_POINTERS
+      || val == BFD_MACH_O_S_SYMBOL_STUBS)
+    return FALSE;
+  return TRUE;
+}
+
+/* We want to bump the alignment of some sections.  */
+static const mach_o_section_name_xlat text_section_names_xlat[] =
+  {
+    {	".eh_frame",				"__eh_frame",
+	SEC_READONLY | SEC_DATA | SEC_LOAD,	BFD_MACH_O_S_COALESCED,
+	BFD_MACH_O_S_ATTR_LIVE_SUPPORT
+	| BFD_MACH_O_S_ATTR_STRIP_STATIC_SYMS
+	| BFD_MACH_O_S_ATTR_NO_TOC,		3},
+    { NULL, NULL, 0, 0, 0, 0}
+  };
+
+const mach_o_segment_name_xlat mach_o_x86_64_segsec_names_xlat[] =
+  {
+    { "__TEXT", text_section_names_xlat },
+    { NULL, NULL }
+  };
+
+#define bfd_mach_o_canonicalize_one_reloc bfd_mach_o_x86_64_canonicalize_one_reloc
 #define bfd_mach_o_swap_reloc_out bfd_mach_o_x86_64_swap_reloc_out
 
 #define bfd_mach_o_bfd_reloc_type_lookup bfd_mach_o_x86_64_bfd_reloc_type_lookup
 #define bfd_mach_o_bfd_reloc_name_lookup bfd_mach_o_x86_64_bfd_reloc_name_lookup
 #define bfd_mach_o_print_thread NULL
+#define bfd_mach_o_tgt_seg_table mach_o_x86_64_segsec_names_xlat
+#define bfd_mach_o_section_type_valid_for_tgt bfd_mach_o_section_type_valid_for_x86_64
 
-#define TARGET_NAME 		mach_o_x86_64_vec
-#define TARGET_STRING 		"mach-o-x86-64"
+#define TARGET_NAME		x86_64_mach_o_vec
+#define TARGET_STRING		"mach-o-x86-64"
 #define TARGET_ARCHITECTURE	bfd_arch_i386
-#define TARGET_BIG_ENDIAN 	0
-#define TARGET_ARCHIVE 		0
+#define TARGET_PAGESIZE		4096
+#define TARGET_BIG_ENDIAN	0
+#define TARGET_ARCHIVE		0
+#define TARGET_PRIORITY		0
 #include "mach-o-target.c"