* config/tc-m68hc11.c: Add S12X and XGATE co-processor support.

	Add option to offset S12 addresses into XGATE memory space.
	Tweak target flags to match other tools. (i.e. -m m68hc11).
	* doc/as.texinfo: Mention new options.
	* doc/c-m68hc11.texi: Document new options.
	* NEWS: Mention new support.

	* archures.c: Add bfd_arch_m9s12x and bfd_arch_m9s12xg.
	* config.bfd: Likewise.
	* cpu-m9s12x.c: New.
	* cpu-m9s12xg.c: New.
	* elf32-m68hc12.c: Add S12X and XGATE co-processor support.
	Add option to offset S12 addresses into XGATE memory space.
	Fix carry bug in IMM16 (IMM8 low/high) relocate.
	* Makefile.am (ALL_MACHINES): Add cpu-m9s12x and cpu-m9s12xg.
	(ALL_MACHINES_CFILES): Likewise.
	* reloc.c: Add S12X relocs.
	* Makefile.in: Regenerate.
	* bfd-in2.h: Regenerate.
	* libbfd.h: Regenerate.

	* gas/m68hc11/insns9s12x.s: New
	* gas/m68hc11/insns9s12x.d: New
	* gas/m68hc11/hexprefix.s: New
	* gas/m68hc11/hexprefix.d: New
	* gas/m68hc11/9s12x-exg-sex-tfr.s: New
	* gas/m68hc11/9s12x-exg-sex-tfr.d: New
	* gas/m68hc11/insns9s12xg.s: New
	* gas/m68hc11/insns9s12xg.d: New
	* gas/m68hc11/9s12x-mov.s: New
	* gas/m68hc11/9s12x-mov.d: New
	* gas/m68hc11/m68hc11.exp: Updated
	* gas/m68hc11/*.d: Brought in line with changed objdump output.
	* gas/all/gas.exp: XFAIL all hc11/12 targets for redef2,3.
	* gas/elf/elf.exp: XFAIL all hc11/12 targets for redef.
	* gas/elf/dwarf2-1.d: Skip for hc11/12 targets.
	* gas/elf/dwarf2-2.d: Likewise.

	* ld-m68hc11/xgate-link.s: New.
	* ld-m68hc11/xgate-link.d: New.
	* ld-m68hc11/xgate-offset.s: New.
	* ld-m68hc11/xgate-offset.d: New.
	* ld-m68hc11/xgate1.s: New.
	* ld-m68hc11/xgate1.d: New.
	* ld-m68hc11/xgate2.s: New.
	* ld-m68hc11/m68hc11.exp: Updated.
	* ld-m68hc11/*.d: Brought in line with changed objdump output.
	* ld-gc/gc.exp: Update CFLAGS for m68hc11.
	* ld-plugin/plugin.exp: Likewise.
	* ld-srec/srec.exp: XFAIL for m68hc11 and m68hc12.

	* configure.in: Add S12X and XGATE co-processor support to m68hc11
	target.
	* disassemble.c: Likewise.
	* configure: Regenerate.
	* m68hc11-dis.c: Make objdump output more consistent, use hex
	instead of decimal and use 0x prefix for hex.
	* m68hc11-opc.c: Add S12X and XGATE opcodes.
	* dis-asm.h (print_insn_m9s12x): Prototype.
	(print_insn_m9s12xg): Prototype.

	* m68hc11.h (R_M68HC12_16B, R_M68HC12_PCREL_9, R_M68HC12_PCREL_10)
	R_M68HC12_HI8XG, R_M68HC12_LO8XG): New relocations.
	(E_M68HC11_XGATE_RAMOFFSET): Define.

	* m68hc11.h: Add XGate definitions.
	(struct m68hc11_opcode): Add xg_mask field.

1 files changed, 58 insertions, 2 deletions

diff --git a/bfd/elf32-m68hc1x.c b/bfd/elf32-m68hc1x.c
index f5762a481a..70bf09e3d3 100644
--- a/bfd/elf32-m68hc1x.c
+++ b/bfd/elf32-m68hc1x.c
@@ -949,6 +949,7 @@ elf32_m68hc11_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED,
       bfd_vma insn_page;
       bfd_boolean is_far = FALSE;
       struct elf_link_hash_entry *h;
+      bfd_vma val;
 
       r_symndx = ELF32_R_SYM (rel->r_info);
       r_type = ELF32_R_TYPE (rel->r_info);
@@ -1029,6 +1030,50 @@ elf32_m68hc11_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED,
       phys_page = m68hc11_phys_page (pinfo, relocation + rel->r_addend);
       switch (r_type)
         {
+        case R_M68HC12_LO8XG:
+          /* This relocation is specific to XGATE IMM16 calls and will precede
+	     a HI8. tc-m68hc11 only generates them in pairs.
+	     Leave the relocation to the HI8XG step.  */
+          r = bfd_reloc_ok;
+          r_type = R_M68HC11_NONE;
+          break;
+
+        case R_M68HC12_HI8XG:
+          /* This relocation is specific to XGATE IMM16 calls and must follow
+             a LO8XG. Does not actually check that it was a LO8XG.
+	     Adjusts high and low bytes.  */
+          relocation = phys_addr;
+          if ((elf_elfheader (input_bfd)->e_flags & E_M68HC11_XGATE_RAMOFFSET)
+	      && (relocation >= 0x2000))
+	    relocation += 0xc000; /* HARDCODED RAM offset for XGATE.  */
+
+          /* Fetch 16 bit value including low byte in previous insn.  */
+          val = (bfd_get_8 (input_bfd, (bfd_byte*) contents + rel->r_offset) << 8)
+	    | bfd_get_8 (input_bfd, (bfd_byte*) contents + rel->r_offset - 2);
+
+          /* Add on value to preserve carry, then write zero to high byte.  */
+          relocation += val;
+
+          /* Write out top byte.  */
+          bfd_put_8 (input_bfd, (relocation >> 8) & 0xff,
+		     (bfd_byte*) contents + rel->r_offset);
+
+          /* Write out low byte to previous instruction.  */
+          bfd_put_8 (input_bfd, relocation & 0xff,
+		     (bfd_byte*) contents + rel->r_offset - 2);
+
+          /* Mark as relocation completed.  */
+          r = bfd_reloc_ok;
+          r_type = R_M68HC11_NONE;
+          break;
+
+        /* The HI8 and LO8 relocs are generated by %hi(expr) %lo(expr)
+           assembler directives. %hi does not support carry.  */
+        case R_M68HC11_HI8:
+        case R_M68HC11_LO8:
+          relocation = phys_addr;
+          break;
+
         case R_M68HC11_24:
           /* Reloc used by 68HC12 call instruction.  */
           bfd_put_16 (input_bfd, phys_addr,
@@ -1123,10 +1168,18 @@ elf32_m68hc11_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED,
             relocation = phys_addr;
           break;
         }
+
       if (r_type != R_M68HC11_NONE)
-        r = _bfd_final_link_relocate (howto, input_bfd, input_section,
+        {
+          if ((r_type == R_M68HC12_PCREL_9) || (r_type == R_M68HC12_PCREL_10))
+            r = _bfd_final_link_relocate (howto, input_bfd, input_section,
                                       contents, rel->r_offset,
-                                      relocation, rel->r_addend);
+                                      relocation - 2, rel->r_addend);
+          else
+            r = _bfd_final_link_relocate (howto, input_bfd, input_section,
+                                          contents, rel->r_offset,
+                                          relocation, rel->r_addend);
+        }
 
       if (r != bfd_reloc_ok)
 	{
@@ -1317,6 +1370,9 @@ _bfd_m68hc11_elf_print_private_bfd_data (bfd *abfd, void *ptr)
   else
     fprintf (file, _(" [memory=flat]"));
 
+  if (elf_elfheader (abfd)->e_flags & E_M68HC11_XGATE_RAMOFFSET)
+    fprintf (file, _(" [XGATE RAM offsetting]"));
+
   fputc ('\n', file);
 
   return TRUE;