* elf32-arm.c (elf32_arm_final_link_relocate): Add support for

	R_ARM_MOVW_BREL_NC, R_ARM_MOVW_BREL, R_ARM_MOVT_BREL,
	R_ARM_THM_MOVW_BREL_NC, R_ARM_THM_MOVW_BREL and
	R_ARM_THM_MOVT_BREL relocations.

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index db2662f..961e65e 100644 (file)
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,5 +1,12 @@
 2006-10-17  Mark Shinwell  <shinwell@codesourcery.com>
 
+       * elf32-arm.c (elf32_arm_final_link_relocate): Add support for
+       R_ARM_MOVW_BREL_NC, R_ARM_MOVW_BREL, R_ARM_MOVT_BREL,
+       R_ARM_THM_MOVW_BREL_NC, R_ARM_THM_MOVW_BREL and
+       R_ARM_THM_MOVT_BREL relocations.
+
+2006-10-17  Mark Shinwell  <shinwell@codesourcery.com>
+
         * elf32-arm.c (elf32_arm_howto_table_1): Change offset for
         R_THM_CALL to 25 and remove FIXME comment.
         (using_thumb2): New function.

diff --git a/bfd/elf32-arm.c b/bfd/elf32-arm.c
index c2e51c1..f9f668f 100644 (file)
--- a/bfd/elf32-arm.c
+++ b/bfd/elf32-arm.c
@@ -4832,6 +4832,13 @@ elf32_arm_final_link_relocate (reloc_howto_type *           howto,
     case R_ARM_MOVT_ABS:
     case R_ARM_MOVW_PREL_NC:
     case R_ARM_MOVT_PREL:
+    /* Until we properly support segment-base-relative addressing then
+       we assume the segment base to be zero, as for the group relocations.
+       Thus R_ARM_MOVW_BREL_NC has the same semantics as R_ARM_MOVW_ABS_NC
+       and R_ARM_MOVT_BREL has the same semantics as R_ARM_MOVT_ABS.  */
+    case R_ARM_MOVW_BREL_NC:
+    case R_ARM_MOVW_BREL:
+    case R_ARM_MOVT_BREL:
       {
        bfd_vma insn = bfd_get_32 (input_bfd, hit_data);
 
@@ -4840,15 +4847,21 @@ elf32_arm_final_link_relocate (reloc_howto_type *           howto,
            addend = ((insn >> 4) & 0xf000) | (insn & 0xfff);
            signed_addend = (addend ^ 0x10000) - 0x10000;
          }
+
        value += signed_addend;
-       if (sym_flags == STT_ARM_TFUNC)
-         value |= 1;
 
        if (r_type == R_ARM_MOVW_PREL_NC || r_type == R_ARM_MOVT_PREL)
          value -= (input_section->output_section->vma
                    + input_section->output_offset + rel->r_offset);
 
-       if (r_type == R_ARM_MOVT_ABS || r_type == R_ARM_MOVT_PREL)
+       if (r_type == R_ARM_MOVW_BREL && value >= 0x10000)
+          return bfd_reloc_overflow;
+
+       if (sym_flags == STT_ARM_TFUNC)
+         value |= 1;
+
+       if (r_type == R_ARM_MOVT_ABS || r_type == R_ARM_MOVT_PREL
+            || r_type == R_ARM_MOVT_BREL)
          value >>= 16;
 
        insn &= 0xfff0f000;
@@ -4862,6 +4875,14 @@ elf32_arm_final_link_relocate (reloc_howto_type *           howto,
     case R_ARM_THM_MOVT_ABS:
     case R_ARM_THM_MOVW_PREL_NC:
     case R_ARM_THM_MOVT_PREL:
+    /* Until we properly support segment-base-relative addressing then
+       we assume the segment base to be zero, as for the above relocations.
+       Thus R_ARM_THM_MOVW_BREL_NC has the same semantics as
+       R_ARM_THM_MOVW_ABS_NC and R_ARM_THM_MOVT_BREL has the same semantics
+       as R_ARM_THM_MOVT_ABS.  */
+    case R_ARM_THM_MOVW_BREL_NC:
+    case R_ARM_THM_MOVW_BREL:
+    case R_ARM_THM_MOVT_BREL:
       {
        bfd_vma insn;
        
@@ -4876,15 +4897,21 @@ elf32_arm_final_link_relocate (reloc_howto_type *           howto,
                   | (insn         & 0x00ff);
            signed_addend = (addend ^ 0x10000) - 0x10000;
          }
+
        value += signed_addend;
-       if (sym_flags == STT_ARM_TFUNC)
-         value |= 1;
 
        if (r_type == R_ARM_THM_MOVW_PREL_NC || r_type == R_ARM_THM_MOVT_PREL)
          value -= (input_section->output_section->vma
                    + input_section->output_offset + rel->r_offset);
 
-       if (r_type == R_ARM_THM_MOVT_ABS || r_type == R_ARM_THM_MOVT_PREL)
+       if (r_type == R_ARM_THM_MOVW_BREL && value >= 0x10000)
+          return bfd_reloc_overflow;
+
+       if (sym_flags == STT_ARM_TFUNC)
+         value |= 1;
+
+       if (r_type == R_ARM_THM_MOVT_ABS || r_type == R_ARM_THM_MOVT_PREL
+            || r_type == R_ARM_THM_MOVT_BREL)
          value >>= 16;
 
        insn &= 0xfbf08f00;