Handle R_X86_64_32 like R_X86_64_64 for ILP32.

bfd/

2011-01-14  H.J. Lu  <hongjiu.lu@intel.com>

	* elf64-x86-64.c (elf_x86_64_link_hash_table): Add pointer_r_type.
	(elf_x86_64_link_hash_table_create): Set pointer_r_type.
	(elf_x86_64_check_relocs): Handle R_X86_64_32 like R_X86_64_64
	for ILP32.  Remove ABI_64_P PIC check for R_X86_64_8,
	R_X86_64_16, R_X86_64_32 and R_X86_64_32S.
	(elf_x86_64_relocate_section):  Handle R_X86_64_32 like R_X86_64_64
	for ILP32.

ld/testsuite/

2011-01-14  H.J. Lu  <hongjiu.lu@intel.com>

	* ld-x86-64/ilp32-5.d: New.
	* ld-x86-64/ilp32-5.s: Likewise.

	* ld-x86-64/x86-64.exp: Run ilp32-5.

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index f14a7cb..37c49a3 100644 (file)
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,13 @@
+2011-01-14  H.J. Lu  <hongjiu.lu@intel.com>
+
+       * elf64-x86-64.c (elf_x86_64_link_hash_table): Add pointer_r_type.
+       (elf_x86_64_link_hash_table_create): Set pointer_r_type.
+       (elf_x86_64_check_relocs): Handle R_X86_64_32 like R_X86_64_64
+       for ILP32.  Remove ABI_64_P PIC check for R_X86_64_8,
+       R_X86_64_16, R_X86_64_32 and R_X86_64_32S.
+       (elf_x86_64_relocate_section):  Handle R_X86_64_32 like R_X86_64_64
+       for ILP32.
+
 2011-01-14  Alan Modra  <amodra@gmail.com>
 
        * bfd.c (bfd_perror): Flush stdout before and stderr after printing

diff --git a/bfd/elf64-x86-64.c b/bfd/elf64-x86-64.c
index 6066330..579f59c 100644 (file)
--- a/bfd/elf64-x86-64.c
+++ b/bfd/elf64-x86-64.c
@@ -495,6 +495,7 @@ struct elf_x86_64_link_hash_table
 
   bfd_vma (*r_info) (bfd_vma, bfd_vma);
   bfd_vma (*r_sym) (bfd_vma);
+  unsigned int pointer_r_type;
   const char *dynamic_interpreter;
   int dynamic_interpreter_size;
 
@@ -658,6 +659,7 @@ elf_x86_64_link_hash_table_create (bfd *abfd)
     {
       ret->r_info = elf64_r_info;
       ret->r_sym = elf64_r_sym;
+      ret->pointer_r_type = R_X86_64_64;
       ret->dynamic_interpreter = ELF64_DYNAMIC_INTERPRETER;
       ret->dynamic_interpreter_size = sizeof ELF64_DYNAMIC_INTERPRETER;
     }
@@ -665,6 +667,7 @@ elf_x86_64_link_hash_table_create (bfd *abfd)
     {
       ret->r_info = elf32_r_info;
       ret->r_sym = elf32_r_sym;
+      ret->pointer_r_type = R_X86_64_32;
       ret->dynamic_interpreter = ELF32_DYNAMIC_INTERPRETER;
       ret->dynamic_interpreter_size = sizeof ELF32_DYNAMIC_INTERPRETER;
     }
@@ -1232,6 +1235,9 @@ elf_x86_64_check_relocs (bfd *abfd, struct bfd_link_info *info,
                  bfd_set_error (bfd_error_bad_value);
                  return FALSE;
 
+               case R_X86_64_32:
+                 if (ABI_64_P (abfd))
+                   goto not_pointer;
                case R_X86_64_64:
                  h->non_got_ref = 1;
                  h->pointer_equality_needed = 1;
@@ -1249,9 +1255,9 @@ elf_x86_64_check_relocs (bfd *abfd, struct bfd_link_info *info,
                  break;
 
                case R_X86_64_32S:
-               case R_X86_64_32:
                case R_X86_64_PC32:
                case R_X86_64_PC64:
+not_pointer:
                  h->non_got_ref = 1;
                  if (r_type != R_X86_64_PC32
                      && r_type != R_X86_64_PC64)
@@ -1448,16 +1454,17 @@ elf_x86_64_check_relocs (bfd *abfd, struct bfd_link_info *info,
            }
          goto create_got;
 
+       case R_X86_64_32:
+         if (!ABI_64_P (abfd))
+           goto pointer;
        case R_X86_64_8:
        case R_X86_64_16:
-       case R_X86_64_32:
        case R_X86_64_32S:
          /* Let's help debug shared library creation.  These relocs
             cannot be used in shared libs.  Don't error out for
             sections we don't care about, such as debug sections or
             non-constant sections.  */
          if (info->shared
-             && ABI_64_P (abfd)
              && (sec->flags & SEC_ALLOC) != 0
              && (sec->flags & SEC_READONLY) != 0)
            {
@@ -1478,6 +1485,7 @@ elf_x86_64_check_relocs (bfd *abfd, struct bfd_link_info *info,
        case R_X86_64_PC32:
        case R_X86_64_PC64:
        case R_X86_64_64:
+pointer:
          if (h != NULL && info->executable)
            {
              /* If this reloc is in a read-only section, we might
@@ -2830,6 +2838,9 @@ elf_x86_64_relocate_section (bfd *output_bfd,
                abort ();
              goto do_relocation;
 
+           case R_X86_64_32:
+             if (ABI_64_P (output_bfd))
+               goto do_relocation;
            case R_X86_64_64: 
              if (rel->r_addend != 0)
                {
@@ -2894,7 +2905,6 @@ elf_x86_64_relocate_section (bfd *output_bfd,
                  continue;
                }
 
-           case R_X86_64_32:
            case R_X86_64_PC32:
            case R_X86_64_PC64:
            case R_X86_64_PLT32:
@@ -3307,7 +3317,7 @@ elf_x86_64_relocate_section (bfd *output_bfd,
              else
                {
                  /* This symbol is local, or marked to become local.  */
-                 if (r_type == R_X86_64_64)
+                 if (r_type == htab->pointer_r_type)
                    {
                      relocate = TRUE;
                      outrel.r_info = htab->r_info (0, R_X86_64_RELATIVE);

diff --git a/ld/testsuite/ChangeLog b/ld/testsuite/ChangeLog
index 02c0c34..897e3db 100644 (file)
--- a/ld/testsuite/ChangeLog
+++ b/ld/testsuite/ChangeLog
@@ -1,3 +1,10 @@
+2011-01-14  H.J. Lu  <hongjiu.lu@intel.com>
+
+       * ld-x86-64/ilp32-5.d: New.
+       * ld-x86-64/ilp32-5.s: Likewise.
+
+       * ld-x86-64/x86-64.exp: Run ilp32-5.
+
 2011-01-13  H.J. Lu  <hongjiu.lu@intel.com>
 
        * ld-x86-64/ilp32-4.d: New.

diff --git a/ld/testsuite/ld-x86-64/ilp32-5.d b/ld/testsuite/ld-x86-64/ilp32-5.d
new file mode 100644 (file)
index 0000000..8f5025e
--- /dev/null
+++ b/ld/testsuite/ld-x86-64/ilp32-5.d
@@ -0,0 +1,8 @@
+#as: --n32
+#ld: -m elf32_x86_64 -shared
+#readelf: -r --wide
+
+#...
+[0-9a-f]+ +[0-9a-f]+ +R_X86_64_RELATIVE +[0-9a-f]+
+[0-9a-f]+ +[0-9a-f]+ +R_X86_64_PC32 +[0-9a-f]+ +foo - 4
+[0-9a-f]+ +[0-9a-f]+ +R_X86_64_32 +[0-9a-f]+ +foo \+ 0

diff --git a/ld/testsuite/ld-x86-64/ilp32-5.s b/ld/testsuite/ld-x86-64/ilp32-5.s
new file mode 100644 (file)
index 0000000..0d97807
--- /dev/null
+++ b/ld/testsuite/ld-x86-64/ilp32-5.s
@@ -0,0 +1,8 @@
+       .globl bar
+bar:
+       mov foo(%rip), %rax
+
+       .data
+xxx:
+       .long foo
+       .long xxx

diff --git a/ld/testsuite/ld-x86-64/x86-64.exp b/ld/testsuite/ld-x86-64/x86-64.exp
index 3aec797..e69ade6 100644 (file)
--- a/ld/testsuite/ld-x86-64/x86-64.exp
+++ b/ld/testsuite/ld-x86-64/x86-64.exp
@@ -176,6 +176,7 @@ run_dump_test "ilp32-1"
 run_dump_test "ilp32-2"
 run_dump_test "ilp32-3"
 run_dump_test "ilp32-4"
+run_dump_test "ilp32-5"
 run_dump_test "ia32-1"
 run_dump_test "ia32-2"
 run_dump_test "ia32-3"