[PIC] Emit @plt for calls

Author: claziss

gcc/config/arc64/arc64.c

@@ -874,6 +874,7 @@ get_arc64_condition_code (rtx comparison)
      '?': Short instruction suffix.
      'L': Lower 32bit of immediate or symbol.
      'h': Higher 32bit of an immediate or symbol.
+     'C': Constant address, switches on/off @plt.
 */
 
 static void
@@ -959,6 +960,20 @@ arc64_print_operand (FILE *file, rtx x, int code)
       fputs (arc_condition_codes[get_arc64_condition_code (x)], file);
       break;
 
+    case 'C':
+      if (GET_CODE (x) != SYMBOL_REF
+	  && GET_CODE (x) != LABEL_REF)
+	{
+	  output_operand_lossage ("invalid operand for %%C code");
+	  return;
+	}
+      output_addr_const (asm_out_file, x);
+      if (flag_pic
+	  && GET_CODE (x) == SYMBOL_REF
+	  && !SYMBOL_REF_LOCAL_P (x))
+	fputs ("@plt", file);
+      break;
+
     case 0:
       if (x == NULL)
 	{

gcc/config/arc64/arc64.md

@@ -461,7 +461,7 @@ udivl, unknown, xor, xorl"
   "@
    jl_s\\t[%0]
    jl\\t[%0]
-   bl\\t%c0"
+   bl\\t%C0"
   [(set_attr "type" "jl,jl,bl")
    (set_attr "predicable" "no,yes,yes")
    (set_attr "length" "2,4,4")])
@@ -490,7 +490,7 @@ udivl, unknown, xor, xorl"
   "@
    jl_s\\t[%1]
    jl\\t[%1]
-   bl\\t%c1"
+   bl\\t%C1"
   [(set_attr "type" "jl,jl,bl")
    (set_attr "predicable" "no,yes,yes")
    (set_attr "length" "2,4,4")])
@@ -527,7 +527,7 @@ udivl, unknown, xor, xorl"
   "SIBLING_CALL_P (insn)"
   "@
    j\\t[%0]
-   b\\t%c0"
+   b\\t%C0"
   [(set_attr "type" "jump,branch")
    (set_attr "predicable" "yes,yes")
    (set_attr "iscompact" "maybe,no")]
@@ -541,7 +541,7 @@ udivl, unknown, xor, xorl"
   "SIBLING_CALL_P (insn)"
   "@
    j\\t[%1]
-   b\\t%c1"
+   b\\t%C1"
   [(set_attr "type" "jump,branch")
    (set_attr "predicable" "yes,yes")
    (set_attr "iscompact" "maybe,no")]