X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=bfd%2Felf32-arm.c;h=2d53304e4e3593e5f4798865e421145557a8f34c;hb=e1ec24c6f31afae5a5175abecdcd9fd4d7893c4b;hp=cd40eefbf5c52e3d108ca01b5e0666fab066fb65;hpb=022f83127a7d608506b67ae5b7ce7960c446895d;p=deliverable%2Fbinutils-gdb.git

diff --git a/bfd/elf32-arm.c b/bfd/elf32-arm.c
index cd40eefbf5..2d53304e4e 100644
--- a/bfd/elf32-arm.c
+++ b/bfd/elf32-arm.c
@@ -7178,6 +7178,40 @@ elf32_arm_final_link_relocate (reloc_howto_type *           howto,
         return bfd_reloc_ok;
       }
 
+    case R_ARM_THM_PC8:
+      /* PR 10073:  This reloc is not generated by the GNU toolchain,
+	 but it is supported for compatibility with third party libraries
+	 generated by other compilers, specifically the ARM/IAR.  */
+      {
+	bfd_vma insn;
+	bfd_signed_vma relocation;
+
+	insn = bfd_get_16 (input_bfd, hit_data);
+
+        if (globals->use_rel)
+	  addend = (insn & 0x00ff) << 2;
+
+	relocation = value + addend;
+	relocation -= (input_section->output_section->vma
+		       + input_section->output_offset
+		       + rel->r_offset);
+
+        value = abs (relocation);
+
+	/* We do not check for overflow of this reloc.  Although strictly
+	   speaking this is incorrect, it appears to be necessary in order
+	   to work with IAR generated relocs.  Since GCC and GAS do not
+	   generate R_ARM_THM_PC8 relocs, the lack of a check should not be
+	   a problem for them.  */
+	value &= 0x3fc;
+
+	insn = (insn & 0xff00) | (value >> 2);
+
+	bfd_put_16 (input_bfd, insn, hit_data);
+
+        return bfd_reloc_ok;
+      }
+
     case R_ARM_THM_PC12:
       /* Corresponds to: ldr.w reg, [pc, #offset].  */
       {