Add support for %hi8, %hi16 and %lo16 being used when relocation are necessary.

	* config/tc-rl78.c (rl78_op): Issue an error message if a 16-bit
	relocation is used on an 8-bit operand or vice versa.
	(tc_gen_reloc): Use the RL78_16U relocation for RL78_CODE.
	(md_apply_fix): Add support for RL78_HI8, RL78_HI16 and RL78_LO16.

diff --git a/gas/ChangeLog b/gas/ChangeLog
index 24a3c1510fc3e8c41a0f87a8ef6dc524c62402e3..38362f5d07a5f6156554cb3a7dabef67265caa86 100644 (file)
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,3 +1,10 @@
+2014-03-26  Nick Clifton  <nickc@redhat.com>
+
+       * config/tc-rl78.c (rl78_op): Issue an error message if a 16-bit
+       relocation is used on an 8-bit operand or vice versa.
+       (tc_gen_reloc): Use the RL78_16U relocation for RL78_CODE.
+       (md_apply_fix): Add support for RL78_HI8, RL78_HI16 and RL78_LO16.
+
 2014-03-25  Nick Clifton  <nickc@redhat.com>
 
        * config/obj-coff-seh.c (obj_coff_seh_code): New function -

diff --git a/gas/config/tc-rl78.c b/gas/config/tc-rl78.c
index 962a0b02a8f93265245832ef54efd6a8a6f5d3f1..ae8f5af8d19b8a3d64502f392e0e4f697ca30562 100644 (file)
--- a/gas/config/tc-rl78.c
+++ b/gas/config/tc-rl78.c
@@ -208,6 +208,16 @@ rl78_op (expressionS exp, int nbytes, int type)
       if (nbytes > 2
          && exp.X_md == BFD_RELOC_RL78_CODE)
        exp.X_md = 0;
+
+      if (nbytes == 1
+         && (exp.X_md == BFD_RELOC_RL78_LO16
+             || exp.X_md == BFD_RELOC_RL78_HI16))
+       as_bad (_("16-bit relocation used in 8-bit operand"));
+
+      if (nbytes == 2
+         && exp.X_md == BFD_RELOC_RL78_HI8)
+       as_bad (_("8-bit relocation used in 16-bit operand"));
+
       rl78_op_fixup (exp, rl78_bytes.n_ops * 8, nbytes * 8, type);
       memset (rl78_bytes.ops + rl78_bytes.n_ops, 0, nbytes);
       rl78_bytes.n_ops += nbytes;
@@ -1197,8 +1207,8 @@ tc_gen_reloc (asection * seg ATTRIBUTE_UNUSED, fixS * fixp)
       break;
 
     case BFD_RELOC_RL78_CODE:
-      SYM0 ();
-      OP (ABS16);
+      reloc[0]->howto = bfd_reloc_type_lookup (stdoutput, BFD_RELOC_RL78_16U);
+      reloc[1] = NULL;
       break;
 
     case BFD_RELOC_RL78_LO16:
@@ -1326,6 +1336,22 @@ md_apply_fix (struct fix * f ATTRIBUTE_UNUSED,
       op[3] = val >> 24;
       break;
 
+    case BFD_RELOC_RL78_HI8:
+      val = val >> 16;
+      op[0] = val;
+      break;
+
+    case BFD_RELOC_RL78_HI16:
+      val = val >> 16;
+      op[0] = val;
+      op[1] = val >> 8;
+      break;
+
+    case BFD_RELOC_RL78_LO16:
+      op[0] = val;
+      op[1] = val >> 8;
+      break;
+
     default:
       as_bad (_("Unknown reloc in md_apply_fix: %s"),
              bfd_get_reloc_code_name (f->fx_r_type));