use remote-utils facilities for baud_rate
[deliverable/binutils-gdb.git] / gdb / m2-exp.y
index 3f8332370487856cf14cf8ee2890e49205b6a3ea..13b93a0f0df5bca2bea99e13444387e1c749293a 100644 (file)
@@ -38,23 +38,20 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
    
 %{
 
-#include <stdio.h>
-#include <string.h>
 #include "defs.h"
-#include "symtab.h"
-#include "gdbtypes.h"
-#include "frame.h"
 #include "expression.h"
 #include "language.h"
 #include "value.h"
 #include "parser-defs.h"
-#include "bfd.h"
-#include "symfile.h"
-#include "objfiles.h"
+#include "m2-lang.h"
+
+/* Remap normal yacc parser interface names (yyparse, yylex, yyerror, etc),
+   as well as gratuitiously global symbol names, so we can have multiple
+   yacc generated parsers in gdb.  Note that these are only the variables
+   produced by yacc.  If other parser generators (bison, byacc, etc) produce
+   additional global names that conflict at link time, then those parser
+   generators need to be fixed instead of adding those names to this list. */
 
-/* These MUST be included in any grammar file!!!! Please choose unique names!
-   Note that this are a combined list of variables that can be produced
-   by any one of bison, byacc, or yacc. */
 #define        yymaxdepth m2_maxdepth
 #define        yyparse m2_parse
 #define        yylex   m2_lex
@@ -70,8 +67,8 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
 #define        yypgo   m2_pgo
 #define        yyact   m2_act
 #define        yyexca  m2_exca
-#define yyerrflag m2_errflag
-#define yynerrs        m2_nerrs
+#define        yyerrflag m2_errflag
+#define        yynerrs m2_nerrs
 #define        yyps    m2_ps
 #define        yypv    m2_pv
 #define        yys     m2_s
@@ -82,27 +79,29 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
 #define        yy_yyv  m2_yyv
 #define        yyval   m2_val
 #define        yylloc  m2_lloc
-#define yyss   m2_yyss         /* byacc */
-#define        yyssp   m2_yysp         /* byacc */
-#define        yyvs    m2_yyvs         /* byacc */
-#define        yyvsp   m2_yyvsp        /* byacc */
+#define        yyreds  m2_reds         /* With YYDEBUG defined */
+#define        yytoks  m2_toks         /* With YYDEBUG defined */
 
-#if 0
-static char *
-make_qualname PARAMS ((char *, char *));
+#ifndef YYDEBUG
+#define        YYDEBUG 0               /* Default to no yydebug support */
 #endif
 
-static int
-parse_number PARAMS ((int));
+int
+yyparse PARAMS ((void));
 
 static int
 yylex PARAMS ((void));
 
-static void
+void
 yyerror PARAMS ((char *));
 
-int
-yyparse PARAMS ((void));
+#if 0
+static char *
+make_qualname PARAMS ((char *, char *));
+#endif
+
+static int
+parse_number PARAMS ((int));
 
 /* The sign of the number being parsed. */
 static int number_sign = 1;
@@ -113,7 +112,6 @@ static int number_sign = 1;
 static struct block *modblock=0;
 #endif
 
-/* #define     YYDEBUG 1 */
 %}
 
 /* Although the yacc "value" of an expression is not used,
@@ -335,9 +333,9 @@ exp     :       exp '['
                           function types */
                         { start_arglist(); }
                 non_empty_arglist ']'  %prec DOT
-                        { write_exp_elt_opcode (BINOP_MULTI_SUBSCRIPT);
+                        { write_exp_elt_opcode (MULTI_SUBSCRIPT);
                          write_exp_elt_longcst ((LONGEST) end_arglist());
-                         write_exp_elt_opcode (BINOP_MULTI_SUBSCRIPT); }
+                         write_exp_elt_opcode (MULTI_SUBSCRIPT); }
         ;
 
 exp    :       exp '('
@@ -561,6 +559,7 @@ fblock      :       block COLONCOLON BLOCKNAME
 /* Useful for assigning to PROCEDURE variables */
 variable:      fblock
                        { write_exp_elt_opcode(OP_VAR_VALUE);
+                         write_exp_elt_block (NULL);
                          write_exp_elt_sym ($1);
                          write_exp_elt_opcode (OP_VAR_VALUE); }
        ;
@@ -582,6 +581,8 @@ variable:   block COLONCOLON NAME
                                   copy_name ($3));
 
                          write_exp_elt_opcode (OP_VAR_VALUE);
+                         /* block_found is set by lookup_symbol.  */
+                         write_exp_elt_block (block_found);
                          write_exp_elt_sym (sym);
                          write_exp_elt_opcode (OP_VAR_VALUE); }
        ;
@@ -605,7 +606,10 @@ variable:  NAME
                                case LOC_LOCAL:
                                case LOC_REF_ARG:
                                case LOC_REGPARM:
+                               case LOC_REGPARM_ADDR:
                                case LOC_LOCAL_ARG:
+                               case LOC_BASEREG:
+                               case LOC_BASEREG_ARG:
                                  if (innermost_block == 0 ||
                                      contained_in (block_found,
                                                    innermost_block))
@@ -619,11 +623,16 @@ variable: NAME
                                case LOC_LABEL: /* maybe should go above? */
                                case LOC_BLOCK:
                                case LOC_CONST_BYTES:
+                               case LOC_OPTIMIZED_OUT:
                                  /* These are listed so gcc -Wall will reveal
                                     un-handled cases.  */
                                  break;
                                }
                              write_exp_elt_opcode (OP_VAR_VALUE);
+                             /* We want to use the selected frame, not
+                                another more inner frame which happens to
+                                be in the same block.  */
+                             write_exp_elt_block (NULL);
                              write_exp_elt_sym (sym);
                              write_exp_elt_opcode (OP_VAR_VALUE);
                            }
@@ -638,7 +647,7 @@ variable:   NAME
                                {
                                  write_exp_elt_opcode (OP_LONG);
                                  write_exp_elt_type (builtin_type_int);
-                                 write_exp_elt_longcst ((LONGEST) msymbol -> address);
+                                 write_exp_elt_longcst ((LONGEST) SYMBOL_VALUE_ADDRESS (msymbol));
                                  write_exp_elt_opcode (OP_LONG);
                                  write_exp_elt_opcode (UNOP_MEMVAL);
                                  if (msymbol -> type == mst_data ||
@@ -855,7 +864,7 @@ yylex ()
 
   /* See if it is a special token of length 2 */
   for( i = 0 ; i < sizeof tokentab2 / sizeof tokentab2[0] ; i++)
-     if(!strncmp(tokentab2[i].name, tokstart, 2))
+     if(STREQN(tokentab2[i].name, tokstart, 2))
      {
        lexptr += 2;
        return tokentab2[i].token;
@@ -1050,14 +1059,14 @@ yylex ()
   if (*tokstart == '$') {
     for (c = 0; c < NUM_REGS; c++)
       if (namelen - 1 == strlen (reg_names[c])
-         && !strncmp (tokstart + 1, reg_names[c], namelen - 1))
+         && STREQN (tokstart + 1, reg_names[c], namelen - 1))
        {
          yylval.lval = c;
          return REGNAME;
        }
     for (c = 0; c < num_std_regs; c++)
      if (namelen - 1 == strlen (std_regs[c].name)
-        && !strncmp (tokstart + 1, std_regs[c].name, namelen - 1))
+        && STREQN (tokstart + 1, std_regs[c].name, namelen - 1))
        {
         yylval.lval = std_regs[c].regnum;
         return REGNAME;
@@ -1067,7 +1076,7 @@ yylex ()
 
   /*  Lookup special keywords */
   for(i = 0 ; i < sizeof(keytab) / sizeof(keytab[0]) ; i++)
-     if(namelen == strlen(keytab[i].keyw) && !strncmp(tokstart,keytab[i].keyw,namelen))
+     if(namelen == strlen(keytab[i].keyw) && STREQN(tokstart,keytab[i].keyw,namelen))
           return keytab[i].token;
 
   yylval.sval.ptr = tokstart;
@@ -1111,10 +1120,14 @@ yylex ()
        case LOC_ARG:
        case LOC_REF_ARG:
        case LOC_REGPARM:
+       case LOC_REGPARM_ADDR:
        case LOC_LOCAL:
        case LOC_LOCAL_ARG:
+       case LOC_BASEREG:
+       case LOC_BASEREG_ARG:
        case LOC_CONST:
        case LOC_CONST_BYTES:
+       case LOC_OPTIMIZED_OUT:
          return NAME;
 
        case LOC_TYPEDEF:
@@ -1133,12 +1146,12 @@ yylex ()
     else
     {
        /* Built-in BOOLEAN type.  This is sort of a hack. */
-       if(!strncmp(tokstart,"TRUE",4))
+       if(STREQN(tokstart,"TRUE",4))
        {
          yylval.ulval = 1;
          return M2_TRUE;
        }
-       else if(!strncmp(tokstart,"FALSE",5))
+       else if(STREQN(tokstart,"FALSE",5))
        {
          yylval.ulval = 0;
          return M2_FALSE;
@@ -1164,7 +1177,7 @@ make_qualname(mod,ident)
 }
 #endif  /* 0 */
 
-static void
+void
 yyerror(msg)
      char *msg;        /* unused */
 {
@@ -1174,104 +1187,4 @@ yyerror(msg)
    else
      error("Invalid syntax in expression");
 }
-\f
-/* Table of operators and their precedences for printing expressions.  */
-
-const static struct op_print m2_op_print_tab[] = {
-    {"+",   BINOP_ADD, PREC_ADD, 0},
-    {"+",   UNOP_PLUS, PREC_PREFIX, 0},
-    {"-",   BINOP_SUB, PREC_ADD, 0},
-    {"-",   UNOP_NEG, PREC_PREFIX, 0},
-    {"*",   BINOP_MUL, PREC_MUL, 0},
-    {"/",   BINOP_DIV, PREC_MUL, 0},
-    {"DIV", BINOP_INTDIV, PREC_MUL, 0},
-    {"MOD", BINOP_REM, PREC_MUL, 0},
-    {":=",  BINOP_ASSIGN, PREC_ASSIGN, 1},
-    {"OR",  BINOP_LOGICAL_OR, PREC_LOGICAL_OR, 0},
-    {"AND", BINOP_LOGICAL_AND, PREC_LOGICAL_AND, 0},
-    {"NOT", UNOP_LOGICAL_NOT, PREC_PREFIX, 0},
-    {"=",   BINOP_EQUAL, PREC_EQUAL, 0},
-    {"<>",  BINOP_NOTEQUAL, PREC_EQUAL, 0},
-    {"<=",  BINOP_LEQ, PREC_ORDER, 0},
-    {">=",  BINOP_GEQ, PREC_ORDER, 0},
-    {">",   BINOP_GTR, PREC_ORDER, 0},
-    {"<",   BINOP_LESS, PREC_ORDER, 0},
-    {"^",   UNOP_IND, PREC_PREFIX, 0},
-    {"@",   BINOP_REPEAT, PREC_REPEAT, 0},
-    {NULL,  0, 0, 0}
-};
-\f
-/* The built-in types of Modula-2.  */
-
-struct type *builtin_type_m2_char;
-struct type *builtin_type_m2_int;
-struct type *builtin_type_m2_card;
-struct type *builtin_type_m2_real;
-struct type *builtin_type_m2_bool;
-
-struct type ** const (m2_builtin_types[]) = 
-{
-  &builtin_type_m2_char,
-  &builtin_type_m2_int,
-  &builtin_type_m2_card,
-  &builtin_type_m2_real,
-  &builtin_type_m2_bool,
-  0
-};
-
-const struct language_defn m2_language_defn = {
-  "modula-2",
-  language_m2,
-  m2_builtin_types,
-  range_check_on,
-  type_check_on,
-  m2_parse,                    /* parser */
-  m2_error,                    /* parser error function */
-  &builtin_type_m2_int,                /* longest signed   integral type */
-  &builtin_type_m2_card,               /* longest unsigned integral type */
-  &builtin_type_m2_real,               /* longest floating point type */
-  "0%XH", "0%", "XH",          /* Hex   format string, prefix, suffix */
-  "%oB",  "%",  "oB",          /* Octal format string, prefix, suffix */
-  m2_op_print_tab,             /* expression operators for printing */
-  LANG_MAGIC
-};
 
-/* Initialization for Modula-2 */
-
-void
-_initialize_m2_exp ()
-{
-  /* Modula-2 "pervasive" types.  NOTE:  these can be redefined!!! */
-  builtin_type_m2_int =
-    init_type (TYPE_CODE_INT, TARGET_INT_BIT / TARGET_CHAR_BIT,
-              0,
-              "INTEGER", (struct objfile *) NULL);
-  builtin_type_m2_card =
-    init_type (TYPE_CODE_INT, TARGET_INT_BIT / TARGET_CHAR_BIT,
-              TYPE_FLAG_UNSIGNED,
-              "CARDINAL", (struct objfile *) NULL);
-  builtin_type_m2_real =
-    init_type (TYPE_CODE_FLT, TARGET_FLOAT_BIT / TARGET_CHAR_BIT,
-              0,
-              "REAL", (struct objfile *) NULL);
-  builtin_type_m2_char =
-    init_type (TYPE_CODE_CHAR, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
-              TYPE_FLAG_UNSIGNED,
-              "CHAR", (struct objfile *) NULL);
-  builtin_type_m2_bool =
-    init_type (TYPE_CODE_BOOL, TARGET_INT_BIT / TARGET_CHAR_BIT,
-              TYPE_FLAG_UNSIGNED,
-              "BOOLEAN", (struct objfile *) NULL);
-
-  TYPE_NFIELDS(builtin_type_m2_bool) = 2;
-  TYPE_FIELDS(builtin_type_m2_bool) = 
-     (struct field *) malloc (sizeof (struct field) * 2);
-  TYPE_FIELD_BITPOS(builtin_type_m2_bool,0) = 0;
-  TYPE_FIELD_NAME(builtin_type_m2_bool,0) = (char *)malloc(6);
-  strcpy(TYPE_FIELD_NAME(builtin_type_m2_bool,0),"FALSE");
-  TYPE_FIELD_BITPOS(builtin_type_m2_bool,1) = 1;
-  TYPE_FIELD_NAME(builtin_type_m2_bool,1) = (char *)malloc(5);
-  strcpy(TYPE_FIELD_NAME(builtin_type_m2_bool,1),"TRUE");
-
-  add_language (&m2_language_defn);
-}
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