Added support for ctoff() reloc prefix.

diff --git a/gas/ChangeLog b/gas/ChangeLog
index ee2372b..852303a 100644 (file)
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,3 +1,17 @@
+Wed Sep 17 16:54:20 1997  Nick Clifton  <nickc@cygnus.com>
+
+       * config/tc-v850.c (v850_reloc_prefix): Recoded to use CHECK_ ()
+       macro. 
+       (handle_tdaoff, handle_zdaoff, handle_sdaoff): New functions.
+start-sanitize-v850e   
+       * config/tc-v850.c Add new sections: call_table_data and
+       call_table_text.
+       (v850_reloc_prefix): Add support for ctoff() relocation prefix. 
+       (handle_ctoff): New Function.
+
+       * doc/c-v850.texi (V850 Opcodes): Document call table relocations.
+end-sanitize-v850e
+
 Tue Sep 16 14:18:22 1997  Nick Clifton  <nickc@cygnus.com>
 
        * config/tc-v850.c (v850_reloc_prefix): Add support for a 16 bit

diff --git a/gas/config/tc-v850.c b/gas/config/tc-v850.c
index 333a809..bd80de7 100644 (file)
--- a/gas/config/tc-v850.c
+++ b/gas/config/tc-v850.c
@@ -83,6 +83,10 @@ static segT tbss_section = NULL;
 static segT zbss_section = NULL;
 static segT rosdata_section = NULL;
 static segT rozdata_section = NULL;
+/* start-sanitize-v850e */
+static segT call_table_data_section = NULL;
+static segT call_table_text_section = NULL;
+/* end-sanitize-v850e */
 
 
 /* local functions */
@@ -166,6 +170,24 @@ v850_rozdata (int ignore)
   demand_empty_rest_of_line ();
 }
 
+/* start-sanitize-v850e */
+void
+v850_call_table_data (int ignore)
+{
+  subseg_set (call_table_data_section, (subsegT) get_absolute_expression ());
+  
+  demand_empty_rest_of_line ();
+}
+
+void
+v850_call_table_text (int ignore)
+{
+  subseg_set (call_table_text_section, (subsegT) get_absolute_expression ());
+  
+  demand_empty_rest_of_line ();
+}
+/* end-sanitize-v850e */
+
 static void
 v850_section (int arg)
 {
@@ -244,10 +266,12 @@ const pseudo_typeS md_pseudo_table[] =
   {"word",    cons,         4},
   {"v850",    set_machine,  0},
 /* start-sanitize-v850e */
-  {"v850e",   set_machine,  bfd_mach_v850e},
+  {"call_table_data", v850_call_table_data, 0},
+  {"call_table_text", v850_call_table_text, 0},
+  {"v850e",           set_machine,          bfd_mach_v850e},
 /* end-sanitize-v850e */
 /* start-sanitize-v850eq */
-  {"v850eq",  set_machine,  bfd_mach_v850eq},
+  {"v850eq",          set_machine,          bfd_mach_v850eq},
 /* end-sanitize-v850eq */
   { NULL,     NULL,         0}
 };
@@ -509,7 +533,7 @@ system_register_name (expressionP, accept_numbers)
  */
 static boolean
 cc_name (expressionP)
-     expressionS *expressionP;
+     expressionS * expressionP;
 {
   int    reg_number;
   char * name;
@@ -791,7 +815,7 @@ size_t md_longopts_size = sizeof md_longopts;
 
 void
 md_show_usage (stream)
-  FILE *stream;
+  FILE * stream;
 {
   fprintf (stream, "V850 options:\n");
   fprintf (stream, "\t-wsigned_overflow    Warn if signed immediate values overflow\n");
@@ -1003,8 +1027,78 @@ md_begin ()
                         
   rozdata_section = subseg_new (".rozdata", 0);
   bfd_set_section_flags (stdoutput, rozdata_section, applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY));
+
+/* start-sanitize-v850e */
+  call_table_data_section = subseg_new (".call_table_data", 0);
+  bfd_set_section_flags (stdoutput, call_table_data_section, applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_DATA | SEC_HAS_CONTENTS));
+  
+  call_table_text_section = subseg_new (".call_table_text", 0);
+  bfd_set_section_flags (stdoutput, call_table_text_section, applicable & (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE));
+/* end-sanitize-v850e */
+}
+
+
+/* start-sanitize-v850e */
+static bfd_reloc_code_real_type
+handle_ctoff (const struct v850_operand * operand)
+{
+  if (operand == NULL)
+    return BFD_RELOC_V850_CALLT_16_16_OFFSET;
+
+  assert (operand->bits == 6);
+  assert (operand->shift == 0);
+      
+  return BFD_RELOC_V850_CALLT_6_7_OFFSET;
+}
+/* end-sanitize-v850e */
+
+static bfd_reloc_code_real_type
+handle_sdaoff (const struct v850_operand * operand)
+{
+  if (operand == NULL)                             return BFD_RELOC_V850_SDA_16_16_OFFSET;
+  if (operand->bits == 15 && operand->shift == 17) return BFD_RELOC_V850_SDA_15_16_OFFSET;
+  /* start-sanitize-v850e */
+  if (operand->bits == -1)                         return BFD_RELOC_V850_SDA_16_16_SPLIT_OFFSET;
+  /* end-sanitize-v850e */
+  
+  assert (operand->bits == 16);
+  assert (operand->shift == 16);
+  
+  return BFD_RELOC_V850_SDA_16_16_OFFSET;
+}
+
+static bfd_reloc_code_real_type
+handle_zdaoff (const struct v850_operand * operand)
+{
+  if (operand == NULL)                             return BFD_RELOC_V850_ZDA_16_16_OFFSET;
+  if (operand->bits == 15 && operand->shift == 17) return BFD_RELOC_V850_ZDA_15_16_OFFSET;
+  /* start-sanitize-v850e */
+  if (operand->bits == -1)                         return BFD_RELOC_V850_ZDA_16_16_SPLIT_OFFSET;
+  /* end-sanitize-v850e */
+  
+  assert (operand->bits == 16);
+  assert (operand->shift == 16);
+  
+  return BFD_RELOC_V850_ZDA_16_16_OFFSET;
 }
 
+static bfd_reloc_code_real_type
+handle_tdaoff (const struct v850_operand * operand)
+{
+  if (operand == NULL)                               return BFD_RELOC_V850_TDA_7_7_OFFSET;  /* data item, not an instruction.  */
+  if (operand->bits == 6 && operand->shift == 1)     return BFD_RELOC_V850_TDA_6_8_OFFSET;  /* sld.w/sst.w, operand: D8_6  */
+  /* start-sanitize-v850e */
+  if (operand->bits == 4 && operand->insert != NULL) return BFD_RELOC_V850_TDA_4_5_OFFSET;  /* sld.hu, operand: D5-4 */
+  if (operand->bits == 4 && operand->insert == NULL) return BFD_RELOC_V850_TDA_4_4_OFFSET;  /* sld.bu, operand: D4   */
+  /* end-sanitize-v850e */
+  if (operand->bits == 16 && operand->shift == 16)   return BFD_RELOC_V850_TDA_16_16_OFFSET; /* set1 & chums, operands: D16 */
+  
+  assert (operand->bits == 7);
+  
+  return  operand->insert != NULL
+    ? BFD_RELOC_V850_TDA_7_8_OFFSET     /* sld.h/sst.h, operand: D8_7 */
+    : BFD_RELOC_V850_TDA_7_7_OFFSET;    /* sld.b/sst.b, opreand: D7   */
+}
 
 /* Warning: The code in this function relies upon the definitions
    in the v850_operands[] array (defined in opcodes/v850-opc.c)
@@ -1022,83 +1116,28 @@ v850_reloc_prefix (const struct v850_operand * operand)
       ++ input_line_pointer;
       paren_skipped = true;
     }
-  
-  if (strncmp (input_line_pointer, "hi0(", 4) == 0)
-    {
-      input_line_pointer += 3;
-      return BFD_RELOC_HI16;
-    }
-  if (strncmp (input_line_pointer, "hi(", 3) == 0)
-    {
-      input_line_pointer += 2;
-      return BFD_RELOC_HI16_S;
-    }
-  if (strncmp (input_line_pointer, "lo(", 3) == 0)
-    {
-      input_line_pointer += 2;
-      return BFD_RELOC_LO16;
-    }
-/* start-sanitize-v850e */
-  if (strncmp (input_line_pointer, "hilo(", 5) == 0)
-    {
-      input_line_pointer += 4;
-      return BFD_RELOC_32;
-    }
-/* end-sanitize-v850e */
 
-  if (strncmp (input_line_pointer, "sdaoff(", 7) == 0)
-    {
-      input_line_pointer += 6;
-      
-      if (operand == NULL)                             return BFD_RELOC_V850_SDA_16_16_OFFSET;
-      if (operand->bits == 15 && operand->shift == 17) return BFD_RELOC_V850_SDA_15_16_OFFSET;
-      /* start-sanitize-v850e */
-      if (operand->bits == -1)                         return BFD_RELOC_V850_SDA_16_16_SPLIT_OFFSET;
-      /* end-sanitize-v850e */
-      
-      assert (operand->bits == 16);
-      assert (operand->shift == 16);
-      
-      return BFD_RELOC_V850_SDA_16_16_OFFSET;
-    }
-      
-  if (strncmp (input_line_pointer, "zdaoff(", 7) == 0)
-    {
-      input_line_pointer += 6;
-      
-      if (operand == NULL)                             return BFD_RELOC_V850_ZDA_16_16_OFFSET;
-      if (operand->bits == 15 && operand->shift == 17) return BFD_RELOC_V850_ZDA_15_16_OFFSET;
-      /* start-sanitize-v850e */
-      if (operand->bits == -1)                         return BFD_RELOC_V850_ZDA_16_16_SPLIT_OFFSET;
-      /* end-sanitize-v850e */
-      
-      assert (operand->bits == 16);
-      assert (operand->shift == 16);
-      
-      return BFD_RELOC_V850_ZDA_16_16_OFFSET;
+#define CHECK_(name, reloc)                                            \
+  if (strncmp (input_line_pointer, name##"(", strlen (name) + 1) == 0) \
+    {                                                                  \
+      input_line_pointer += strlen (name);                             \
+      return reloc;                                                    \
     }
   
-  if (strncmp (input_line_pointer, "tdaoff(", 7) == 0)
-    {
-      input_line_pointer += 6;
-      
-      if (operand == NULL)                               return BFD_RELOC_V850_TDA_7_7_OFFSET;  
-      if (operand->bits == 6 && operand->shift == 1)     return BFD_RELOC_V850_TDA_6_8_OFFSET;  /* sld.w/sst.w, operand: D8_6  */
-      /* start-sanitize-v850e */
-      if (operand->bits == 4 && operand->insert != NULL) return BFD_RELOC_V850_TDA_4_5_OFFSET;  /* sld.hu, operand: D5-4 */
-      if (operand->bits == 4 && operand->insert == NULL) return BFD_RELOC_V850_TDA_4_4_OFFSET;  /* sld.bu, operand: D4   */
-      /* end-sanitize-v850e */
-      if (operand->bits == 16 && operand->shift == 16)   return BFD_RELOC_V850_TDA_16_16_OFFSET; /* set1 & chums, operands: D16 */
-      
-      assert (operand->bits == 7);
-      
-      return  operand->insert != NULL
-       ? BFD_RELOC_V850_TDA_7_8_OFFSET     /* sld.h/sst.h, operand: D8_7 */
-       : BFD_RELOC_V850_TDA_7_7_OFFSET;    /* sld.b/sst.b, opreand: D7   */
-    }
+  CHECK_ ("hi0",    BFD_RELOC_HI16);
+  CHECK_ ("hi",     BFD_RELOC_HI16_S);
+  CHECK_ ("lo",     BFD_RELOC_LO16);
+  CHECK_ ("sdaoff", handle_sdaoff (operand));
+  CHECK_ ("zdaoff", handle_zdaoff (operand));
+  CHECK_ ("tdaoff", handle_tdaoff (operand));
 
+/* start-sanitize-v850e */
+  CHECK_ ("hilo", BFD_RELOC_32);
+  CHECK_ ("ctoff",  handle_ctoff (operand));
+/* end-sanitize-v850e */
+  
+  /* Restore skipped parenthesis.  */
   if (paren_skipped)
-    /* Restore skipped character.  */
     -- input_line_pointer;
   
   return BFD_RELOC_UNUSED;

diff --git a/gas/doc/c-v850.texi b/gas/doc/c-v850.texi
index b17fc36..06919ff 100644 (file)
--- a/gas/doc/c-v850.texi
+++ b/gas/doc/c-v850.texi
@@ -358,10 +358,25 @@ that the label is somewhere within the first 32K of memory.  (Strictly
 speaking it also possible to access the last 32K of memory as well, as
 the offsets are signed).
 
+@c start-santize-v850e
+@cindex @code{ctoff} pseudo-op, V850
+@item ctoff()
+Computes the offset of the named variable from the start of the Call
+Table Area (whoes address is helg in system register 20, the CTBP
+register) and stores the result a 6 or 16 bit unsigned value in the
+immediate field of then given instruction or piece of data.  For
+example:
+
+     @samp{callt ctoff(table_func1)}
+
+will put the call the function whoes address is held in the call table
+at the location labeled 'table_func1'.
+@c end-santize-v850e
+
 @end table
 
 
-For information on the V850 or Thumb instruction sets, see @cite{V850
+For information on the V850 instruction set, see @cite{V850
 Family 32-/16-Bit single-Chip Microcontroller Architecture Manual} from NEC.
 Ltd.