Add option -mfence-as-lock-add=[no|yes].

[deliverable/binutils-gdb.git] / gas / config / tc-moxie.c

diff --git a/gas/config/tc-moxie.c b/gas/config/tc-moxie.c
index 2fffc6594c8c8831125cbdf67b6ee29ad0c9a9d1..ae17bb338246abd2559ef3b4b936c826b027e7db 100644 (file)
--- a/gas/config/tc-moxie.c
+++ b/gas/config/tc-moxie.c
@@ -1,6 +1,5 @@
 /* tc-moxie.c -- Assemble code for moxie
-   Copyright 2009
-   Free Software Foundation, Inc.
+   Copyright (C) 2009-2016 Free Software Foundation, Inc.
 
    This file is part of GAS, the GNU Assembler.
 
@@ -43,7 +42,10 @@ const pseudo_typeS md_pseudo_table[] =
 const char FLT_CHARS[] = "rRsSfFdDxXpP";
 const char EXP_CHARS[] = "eE";
 
-static int md_chars_to_number (char *val, int n);
+static valueT md_chars_to_number (char * buf, int n);
+
+/* Byte order.  */
+extern int target_big_endian;
 
 void
 md_operand (expressionS *op __attribute__((unused)))
@@ -72,6 +74,8 @@ md_begin (void)
   for (count = 0, opcode = moxie_form3_opc_info; count++ < 10; opcode++)
     hash_insert (opcode_hash_control, opcode->name, (char *) opcode);
 
+  target_big_endian = TARGET_BYTES_BIG_ENDIAN;
+
   bfd_set_arch_mach (stdoutput, TARGET_ARCH, 0);
 }
 
@@ -203,7 +207,7 @@ md_assemble (char *str)
        op_end++;
        op_end = parse_exp_save_ilp (op_end, &arg);
        fix_new_exp (frag_now,
-                    ((p+1) - frag_now->fr_literal),
+                    ((p + (target_big_endian ? 1 : 0)) - frag_now->fr_literal),
                     1,
                     &arg,
                     0,
@@ -400,7 +404,7 @@ md_assemble (char *str)
        iword += (a << 4);
       }
       break;
-    case MOXIE_F1_ABi4:
+    case MOXIE_F1_ABi2:
       iword = opcode->opcode << 8;
       while (ISSPACE (*op_end))
        op_end++;
@@ -422,13 +426,13 @@ md_assemble (char *str)
        op_end++;
 
        op_end = parse_exp_save_ilp (op_end, &arg);
-       offset = frag_more (4);
+       offset = frag_more (2);
        fix_new_exp (frag_now,
                     (offset - frag_now->fr_literal),
-                    4,
+                    2,
                     &arg,
                     0,
-                    BFD_RELOC_32);
+                    BFD_RELOC_16);
 
        if (*op_end != '(')
          {
@@ -454,7 +458,7 @@ md_assemble (char *str)
        iword += (a << 4) + b;
       }
       break;
-    case MOXIE_F1_AiB4:
+    case MOXIE_F1_AiB2:
       iword = opcode->opcode << 8;
       while (ISSPACE (*op_end))
        op_end++;
@@ -464,13 +468,13 @@ md_assemble (char *str)
        int a, b;
 
        op_end = parse_exp_save_ilp (op_end, &arg);
-       offset = frag_more (4);
+       offset = frag_more (2);
        fix_new_exp (frag_now,
                     (offset - frag_now->fr_literal),
-                    4,
+                    2,
                     &arg,
                     0,
-                    BFD_RELOC_32);
+                    BFD_RELOC_16);
 
        if (*op_end != '(')
          {
@@ -589,32 +593,54 @@ md_atof (int type, char *litP, int *sizeP)
 
   return NULL;
 }
-\f
-const char *md_shortopts = "";
+
+enum options
+{
+  OPTION_EB = OPTION_MD_BASE,
+  OPTION_EL,
+};
 
 struct option md_longopts[] =
 {
-  {NULL, no_argument, NULL, 0}
+  { "EB",          no_argument, NULL, OPTION_EB},
+  { "EL",          no_argument, NULL, OPTION_EL},
+  { NULL,          no_argument, NULL, 0}
 };
+
 size_t md_longopts_size = sizeof (md_longopts);
+\f
+const char *md_shortopts = "";
 
-/* We have no target specific options yet, so these next
-   two functions are empty.  */
 int
 md_parse_option (int c ATTRIBUTE_UNUSED, char *arg ATTRIBUTE_UNUSED)
 {
-  return 0;
+  switch (c)
+    {
+    case OPTION_EB:
+      target_big_endian = 1;
+      break;
+    case OPTION_EL:
+      target_big_endian = 0;
+      break;
+    default:
+      return 0;
+    }
+
+  return 1;
 }
 
 void
 md_show_usage (FILE *stream ATTRIBUTE_UNUSED)
 {
+  fprintf (stream, _("\
+  -EB                     assemble for a big endian system (default)\n\
+  -EL                     assemble for a little endian system\n"));
 }
 
 /* Apply a fixup to the object file.  */
 
 void
-md_apply_fix (fixS *fixP ATTRIBUTE_UNUSED, 
+md_apply_fix (fixS *fixP ATTRIBUTE_UNUSED,
              valueT * valP ATTRIBUTE_UNUSED, segT seg ATTRIBUTE_UNUSED)
 {
   char *buf = fixP->fx_where + fixP->fx_frag->fr_literal;
@@ -626,15 +652,35 @@ md_apply_fix (fixS *fixP ATTRIBUTE_UNUSED,
   switch (fixP->fx_r_type)
     {
     case BFD_RELOC_32:
-      *buf++ = val >> 24;
-      *buf++ = val >> 16;
-      *buf++ = val >> 8;
-      *buf++ = val >> 0;
+      if (target_big_endian)
+       {
+         buf[0] = val >> 24;
+         buf[1] = val >> 16;
+         buf[2] = val >> 8;
+         buf[3] = val >> 0;
+       }
+      else
+       {
+         buf[3] = val >> 24;
+         buf[2] = val >> 16;
+         buf[1] = val >> 8;
+         buf[0] = val >> 0;
+       }
+      buf += 4;
       break;
 
     case BFD_RELOC_16:
-      *buf++ = val >> 8;
-      *buf++ = val >> 0;
+      if (target_big_endian)
+       {
+         buf[0] = val >> 8;
+         buf[1] = val >> 0;
+       }
+      else
+       {
+         buf[1] = val >> 8;
+         buf[0] = val >> 0;
+       }
+      buf += 2;
       break;
 
     case BFD_RELOC_8:
@@ -665,28 +711,43 @@ md_apply_fix (fixS *fixP ATTRIBUTE_UNUSED,
     fixP->fx_done = 1;
 }
 
-/* Put number into target byte order (big endian).  */
+/* Put number into target byte order.  */
 
 void
-md_number_to_chars (char *ptr, valueT use, int nbytes)
+md_number_to_chars (char * ptr, valueT use, int nbytes)
 {
-  number_to_chars_bigendian (ptr, use, nbytes);
+  if (target_big_endian)
+    number_to_chars_bigendian (ptr, use, nbytes);
+  else
+    number_to_chars_littleendian (ptr, use, nbytes);
 }
 
 /* Convert from target byte order to host byte order.  */
 
-static int
-md_chars_to_number (char *val, int n)
+static valueT
+md_chars_to_number (char * buf, int n)
 {
-  int retval = 0;
+  valueT result = 0;
+  unsigned char * where = (unsigned char *) buf;
 
-  while (n--)
+  if (target_big_endian)
+    {
+      while (n--)
+       {
+         result <<= 8;
+         result |= (*where++ & 255);
+       }
+    }
+  else
     {
-      retval <<= 8;
-      retval |= (*val++ & 255);
+      while (n--)
+       {
+         result <<= 8;
+         result |= (where[n] & 255);
+       }
     }
 
-  return retval;
+  return result;
 }
 
 /* Generate a machine-dependent relocation.  */
@@ -774,7 +835,8 @@ md_pcrel_from (fixS *fixP)
     case BFD_RELOC_32:
       return addr + 4;
     case BFD_RELOC_MOXIE_10_PCREL:
-      return addr;
+      /* Offset is from the end of the instruction.  */
+      return addr + 2;
     default:
       abort ();
       return addr;