Don't rely on inferior_ptid in record_full_wait
[deliverable/binutils-gdb.git] / gdb / c-exp.y
index 627ea1f3baeb4f15ebb585961f0ea13857f3b679..3403a857a8396190b039dd2ae595e258f3c96990 100644 (file)
@@ -1,5 +1,5 @@
 /* YACC parser for C expressions, for GDB.
-   Copyright (C) 1986-2019 Free Software Foundation, Inc.
+   Copyright (C) 1986-2020 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -474,14 +474,15 @@ exp       :       OBJC_LBRAC TYPENAME
                        {
                          CORE_ADDR theclass;
 
+                         std::string copy = copy_name ($2.stoken);
                          theclass = lookup_objc_class (pstate->gdbarch (),
-                                                    copy_name ($2.stoken));
+                                                       copy.c_str ());
                          if (theclass == 0)
                            error (_("%s is not an ObjC Class"),
-                                  copy_name ($2.stoken));
+                                  copy.c_str ());
                          write_exp_elt_opcode (pstate, OP_LONG);
                          write_exp_elt_type (pstate,
-                                           parse_type (pstate)->builtin_int);
+                                             parse_type (pstate)->builtin_int);
                          write_exp_elt_longcst (pstate, (LONGEST) theclass);
                          write_exp_elt_opcode (pstate, OP_LONG);
                          start_msglist();
@@ -823,7 +824,6 @@ exp :       SIZEOF '(' type ')'     %prec UNARY
                          write_exp_elt_opcode (pstate, OP_LONG);
                          write_exp_elt_type (pstate, lookup_signed_typename
                                              (pstate->language (),
-                                              pstate->gdbarch (),
                                               "int"));
                          type = check_typedef (type);
 
@@ -959,7 +959,7 @@ block       :       BLOCKNAME
                            $$ = SYMBOL_BLOCK_VALUE ($1.sym.symbol);
                          else
                            error (_("No file or function \"%s\"."),
-                                  copy_name ($1.stoken));
+                                  copy_name ($1.stoken).c_str ());
                        }
        |       FILENAME
                        {
@@ -968,13 +968,15 @@ block     :       BLOCKNAME
        ;
 
 block  :       block COLONCOLON name
-                       { struct symbol *tem
-                           = lookup_symbol (copy_name ($3), $1,
+                       {
+                         std::string copy = copy_name ($3);
+                         struct symbol *tem
+                           = lookup_symbol (copy.c_str (), $1,
                                             VAR_DOMAIN, NULL).symbol;
 
                          if (!tem || SYMBOL_CLASS (tem) != LOC_BLOCK)
                            error (_("No function \"%s\" in specified context."),
-                                  copy_name ($3));
+                                  copy.c_str ());
                          $$ = SYMBOL_BLOCK_VALUE (tem); }
        ;
 
@@ -985,7 +987,7 @@ variable:   name_not_typename ENTRY
                              || !symbol_read_needs_frame (sym))
                            error (_("@entry can be used only for function "
                                     "parameters, not for \"%s\""),
-                                  copy_name ($1.stoken));
+                                  copy_name ($1.stoken).c_str ());
 
                          write_exp_elt_opcode (pstate, OP_VAR_ENTRY_VALUE);
                          write_exp_elt_sym (pstate, sym);
@@ -994,16 +996,17 @@ variable: name_not_typename ENTRY
        ;
 
 variable:      block COLONCOLON name
-                       { struct block_symbol sym
-                           = lookup_symbol (copy_name ($3), $1,
+                       {
+                         std::string copy = copy_name ($3);
+                         struct block_symbol sym
+                           = lookup_symbol (copy.c_str (), $1,
                                             VAR_DOMAIN, NULL);
 
                          if (sym.symbol == 0)
                            error (_("No symbol \"%s\" in specified context."),
-                                  copy_name ($3));
+                                  copy.c_str ());
                          if (symbol_read_needs_frame (sym.symbol))
-
-                           innermost_block.update (sym);
+                           pstate->block_tracker->update (sym);
 
                          write_exp_elt_opcode (pstate, OP_VAR_VALUE);
                          write_exp_elt_block (pstate, sym.block);
@@ -1050,22 +1053,23 @@ qualified_name: TYPENAME COLONCOLON name
                        }
        |       TYPENAME COLONCOLON name COLONCOLON name
                        {
-                         char *copy = copy_name ($3);
+                         std::string copy = copy_name ($3);
                          error (_("No type \"%s\" within class "
                                   "or namespace \"%s\"."),
-                                copy, TYPE_SAFE_NAME ($1.type));
+                                copy.c_str (), TYPE_SAFE_NAME ($1.type));
                        }
        ;
 
 variable:      qualified_name
        |       COLONCOLON name_not_typename
                        {
-                         char *name = copy_name ($2.stoken);
+                         std::string name = copy_name ($2.stoken);
                          struct symbol *sym;
                          struct bound_minimal_symbol msymbol;
 
                          sym
-                           = lookup_symbol (name, (const struct block *) NULL,
+                           = lookup_symbol (name.c_str (),
+                                            (const struct block *) NULL,
                                             VAR_DOMAIN, NULL).symbol;
                          if (sym)
                            {
@@ -1076,13 +1080,14 @@ variable:       qualified_name
                              break;
                            }
 
-                         msymbol = lookup_bound_minimal_symbol (name);
+                         msymbol = lookup_bound_minimal_symbol (name.c_str ());
                          if (msymbol.minsym != NULL)
                            write_exp_msymbol (pstate, msymbol);
                          else if (!have_full_symbols () && !have_partial_symbols ())
                            error (_("No symbol table is loaded.  Use the \"file\" command."));
                          else
-                           error (_("No symbol \"%s\" in current context."), name);
+                           error (_("No symbol \"%s\" in current context."),
+                                  name.c_str ());
                        }
        ;
 
@@ -1092,7 +1097,7 @@ variable: name_not_typename
                          if (sym.symbol)
                            {
                              if (symbol_read_needs_frame (sym.symbol))
-                               innermost_block.update (sym);
+                               pstate->block_tracker->update (sym);
 
                              /* If we found a function, see if it's
                                 an ifunc resolver that has the same
@@ -1116,7 +1121,7 @@ variable: name_not_typename
                              /* C++: it hangs off of `this'.  Must
                                 not inadvertently convert from a method call
                                 to data ref.  */
-                             innermost_block.update (sym);
+                             pstate->block_tracker->update (sym);
                              write_exp_elt_opcode (pstate, OP_THIS);
                              write_exp_elt_opcode (pstate, OP_THIS);
                              write_exp_elt_opcode (pstate, STRUCTOP_PTR);
@@ -1125,17 +1130,17 @@ variable:       name_not_typename
                            }
                          else
                            {
-                             char *arg = copy_name ($1.stoken);
+                             std::string arg = copy_name ($1.stoken);
 
                              bound_minimal_symbol msymbol
-                               = lookup_bound_minimal_symbol (arg);
+                               = lookup_bound_minimal_symbol (arg.c_str ());
                              if (msymbol.minsym == NULL)
                                {
                                  if (!have_full_symbols () && !have_partial_symbols ())
                                    error (_("No symbol table is loaded.  Use the \"file\" command."));
                                  else
                                    error (_("No symbol \"%s\" in current context."),
-                                          copy_name ($1.stoken));
+                                          arg.c_str ());
                                }
 
                              /* This minsym might be an alias for
@@ -1166,7 +1171,8 @@ variable: name_not_typename
 
 space_identifier : '@' NAME
                {
-                 cpstate->type_stack.insert (pstate, copy_name ($2.stoken));
+                 cpstate->type_stack.insert (pstate,
+                                             copy_name ($2.stoken).c_str ());
                }
        ;
 
@@ -1294,123 +1300,95 @@ typebase
                        { $$ = $1.type; }
        |       INT_KEYWORD
                        { $$ = lookup_signed_typename (pstate->language (),
-                                                      pstate->gdbarch (),
                                                       "int"); }
        |       LONG
                        { $$ = lookup_signed_typename (pstate->language (),
-                                                      pstate->gdbarch (),
                                                       "long"); }
        |       SHORT
                        { $$ = lookup_signed_typename (pstate->language (),
-                                                      pstate->gdbarch (),
                                                       "short"); }
        |       LONG INT_KEYWORD
                        { $$ = lookup_signed_typename (pstate->language (),
-                                                      pstate->gdbarch (),
                                                       "long"); }
        |       LONG SIGNED_KEYWORD INT_KEYWORD
                        { $$ = lookup_signed_typename (pstate->language (),
-                                                      pstate->gdbarch (),
                                                       "long"); }
        |       LONG SIGNED_KEYWORD
                        { $$ = lookup_signed_typename (pstate->language (),
-                                                      pstate->gdbarch (),
                                                       "long"); }
        |       SIGNED_KEYWORD LONG INT_KEYWORD
                        { $$ = lookup_signed_typename (pstate->language (),
-                                                      pstate->gdbarch (),
                                                       "long"); }
        |       UNSIGNED LONG INT_KEYWORD
                        { $$ = lookup_unsigned_typename (pstate->language (),
-                                                        pstate->gdbarch (),
                                                         "long"); }
        |       LONG UNSIGNED INT_KEYWORD
                        { $$ = lookup_unsigned_typename (pstate->language (),
-                                                        pstate->gdbarch (),
                                                         "long"); }
        |       LONG UNSIGNED
                        { $$ = lookup_unsigned_typename (pstate->language (),
-                                                        pstate->gdbarch (),
                                                         "long"); }
        |       LONG LONG
                        { $$ = lookup_signed_typename (pstate->language (),
-                                                      pstate->gdbarch (),
                                                       "long long"); }
        |       LONG LONG INT_KEYWORD
                        { $$ = lookup_signed_typename (pstate->language (),
-                                                      pstate->gdbarch (),
                                                       "long long"); }
        |       LONG LONG SIGNED_KEYWORD INT_KEYWORD
                        { $$ = lookup_signed_typename (pstate->language (),
-                                                      pstate->gdbarch (),
                                                       "long long"); }
        |       LONG LONG SIGNED_KEYWORD
                        { $$ = lookup_signed_typename (pstate->language (),
-                                                      pstate->gdbarch (),
                                                       "long long"); }
        |       SIGNED_KEYWORD LONG LONG
                        { $$ = lookup_signed_typename (pstate->language (),
-                                                      pstate->gdbarch (),
                                                       "long long"); }
        |       SIGNED_KEYWORD LONG LONG INT_KEYWORD
                        { $$ = lookup_signed_typename (pstate->language (),
-                                                      pstate->gdbarch (),
                                                       "long long"); }
        |       UNSIGNED LONG LONG
                        { $$ = lookup_unsigned_typename (pstate->language (),
-                                                        pstate->gdbarch (),
                                                         "long long"); }
        |       UNSIGNED LONG LONG INT_KEYWORD
                        { $$ = lookup_unsigned_typename (pstate->language (),
-                                                        pstate->gdbarch (),
                                                         "long long"); }
        |       LONG LONG UNSIGNED
                        { $$ = lookup_unsigned_typename (pstate->language (),
-                                                        pstate->gdbarch (),
                                                         "long long"); }
        |       LONG LONG UNSIGNED INT_KEYWORD
                        { $$ = lookup_unsigned_typename (pstate->language (),
-                                                        pstate->gdbarch (),
                                                         "long long"); }
        |       SHORT INT_KEYWORD
                        { $$ = lookup_signed_typename (pstate->language (),
-                                                      pstate->gdbarch (),
                                                       "short"); }
        |       SHORT SIGNED_KEYWORD INT_KEYWORD
                        { $$ = lookup_signed_typename (pstate->language (),
-                                                      pstate->gdbarch (),
                                                       "short"); }
        |       SHORT SIGNED_KEYWORD
                        { $$ = lookup_signed_typename (pstate->language (),
-                                                      pstate->gdbarch (),
                                                       "short"); }
        |       UNSIGNED SHORT INT_KEYWORD
                        { $$ = lookup_unsigned_typename (pstate->language (),
-                                                        pstate->gdbarch (),
                                                         "short"); }
        |       SHORT UNSIGNED
                        { $$ = lookup_unsigned_typename (pstate->language (),
-                                                        pstate->gdbarch (),
                                                         "short"); }
        |       SHORT UNSIGNED INT_KEYWORD
                        { $$ = lookup_unsigned_typename (pstate->language (),
-                                                        pstate->gdbarch (),
                                                         "short"); }
        |       DOUBLE_KEYWORD
                        { $$ = lookup_typename (pstate->language (),
-                                               pstate->gdbarch (),
                                                "double",
                                                NULL,
                                                0); }
        |       LONG DOUBLE_KEYWORD
                        { $$ = lookup_typename (pstate->language (),
-                                               pstate->gdbarch (),
                                                "long double",
                                                NULL,
                                                0); }
        |       STRUCT name
                        { $$
-                           = lookup_struct (copy_name ($2),
+                           = lookup_struct (copy_name ($2).c_str (),
                                             pstate->expression_context_block);
                        }
        |       STRUCT COMPLETE
@@ -1427,7 +1405,8 @@ typebase
                        }
        |       CLASS name
                        { $$ = lookup_struct
-                           (copy_name ($2), pstate->expression_context_block);
+                           (copy_name ($2).c_str (),
+                            pstate->expression_context_block);
                        }
        |       CLASS COMPLETE
                        {
@@ -1443,7 +1422,7 @@ typebase
                        }
        |       UNION name
                        { $$
-                           = lookup_union (copy_name ($2),
+                           = lookup_union (copy_name ($2).c_str (),
                                            pstate->expression_context_block);
                        }
        |       UNION COMPLETE
@@ -1459,7 +1438,7 @@ typebase
                          $$ = NULL;
                        }
        |       ENUM name
-                       { $$ = lookup_enum (copy_name ($2),
+                       { $$ = lookup_enum (copy_name ($2).c_str (),
                                            pstate->expression_context_block);
                        }
        |       ENUM COMPLETE
@@ -1475,26 +1454,22 @@ typebase
                        }
        |       UNSIGNED type_name
                        { $$ = lookup_unsigned_typename (pstate->language (),
-                                                        pstate->gdbarch (),
                                                         TYPE_NAME($2.type)); }
        |       UNSIGNED
                        { $$ = lookup_unsigned_typename (pstate->language (),
-                                                        pstate->gdbarch (),
                                                         "int"); }
        |       SIGNED_KEYWORD type_name
                        { $$ = lookup_signed_typename (pstate->language (),
-                                                      pstate->gdbarch (),
                                                       TYPE_NAME($2.type)); }
        |       SIGNED_KEYWORD
                        { $$ = lookup_signed_typename (pstate->language (),
-                                                      pstate->gdbarch (),
                                                       "int"); }
                 /* It appears that this rule for templates is never
                    reduced; template recognition happens by lookahead
                    in the token processing code in yylex. */
        |       TEMPLATE name '<' type '>'
                        { $$ = lookup_template_type
-                           (copy_name($2), $4,
+                           (copy_name($2).c_str (), $4,
                             pstate->expression_context_block);
                        }
        | const_or_volatile_or_space_identifier_noopt typebase
@@ -1509,7 +1484,6 @@ type_name:        TYPENAME
                  $$.stoken.ptr = "int";
                  $$.stoken.length = 3;
                  $$.type = lookup_signed_typename (pstate->language (),
-                                                   pstate->gdbarch (),
                                                    "int");
                }
        |       LONG
@@ -1517,7 +1491,6 @@ type_name:        TYPENAME
                  $$.stoken.ptr = "long";
                  $$.stoken.length = 4;
                  $$.type = lookup_signed_typename (pstate->language (),
-                                                   pstate->gdbarch (),
                                                    "long");
                }
        |       SHORT
@@ -1525,7 +1498,6 @@ type_name:        TYPENAME
                  $$.stoken.ptr = "short";
                  $$.stoken.length = 5;
                  $$.type = lookup_signed_typename (pstate->language (),
-                                                   pstate->gdbarch (),
                                                    "short");
                }
        ;
@@ -2482,15 +2454,14 @@ static const struct token ident_tokens[] =
 static void
 scan_macro_expansion (char *expansion)
 {
-  char *copy;
+  const char *copy;
 
   /* We'd better not be trying to push the stack twice.  */
   gdb_assert (! cpstate->macro_original_text);
 
   /* Copy to the obstack, and then free the intermediate
      expansion.  */
-  copy = (char *) obstack_copy0 (&cpstate->expansion_obstack, expansion,
-                                strlen (expansion));
+  copy = obstack_strdup (&cpstate->expansion_obstack, expansion);
   xfree (expansion);
 
   /* Save the old lexptr value, so we can return to it when we're done
@@ -2552,7 +2523,6 @@ lex_one_token (struct parser_state *par_state, bool *is_quoted_name)
   unsigned int i;
   const char *tokstart;
   bool saw_structop = last_was_structop;
-  char *copy;
 
   last_was_structop = false;
   *is_quoted_name = false;
@@ -2880,9 +2850,9 @@ lex_one_token (struct parser_state *par_state, bool *is_quoted_name)
   yylval.sval.length = namelen;
 
   /* Catch specific keywords.  */
-  copy = copy_name (yylval.sval);
+  std::string copy = copy_name (yylval.sval);
   for (i = 0; i < sizeof ident_tokens / sizeof ident_tokens[0]; i++)
-    if (strcmp (copy, ident_tokens[i].oper) == 0)
+    if (copy == ident_tokens[i].oper)
       {
        if ((ident_tokens[i].flags & FLAG_CXX) != 0
            && par_state->language ()->la_language != language_cplus)
@@ -2892,7 +2862,7 @@ lex_one_token (struct parser_state *par_state, bool *is_quoted_name)
          {
            struct field_of_this_result is_a_field_of_this;
 
-           if (lookup_symbol (copy,
+           if (lookup_symbol (copy.c_str (),
                               pstate->expression_context_block,
                               VAR_DOMAIN,
                               (par_state->language ()->la_language
@@ -2954,16 +2924,15 @@ classify_name (struct parser_state *par_state, const struct block *block,
               bool is_quoted_name, bool is_after_structop)
 {
   struct block_symbol bsym;
-  char *copy;
   struct field_of_this_result is_a_field_of_this;
 
-  copy = copy_name (yylval.sval);
+  std::string copy = copy_name (yylval.sval);
 
   /* Initialize this in case we *don't* use it in this call; that way
      we can refer to it unconditionally below.  */
   memset (&is_a_field_of_this, 0, sizeof (is_a_field_of_this));
 
-  bsym = lookup_symbol (copy, block, VAR_DOMAIN,
+  bsym = lookup_symbol (copy.c_str (), block, VAR_DOMAIN,
                        par_state->language ()->la_name_of_this
                        ? &is_a_field_of_this : NULL);
 
@@ -2986,7 +2955,7 @@ classify_name (struct parser_state *par_state, const struct block *block,
        {
          struct field_of_this_result inner_is_a_field_of_this;
 
-         bsym = lookup_symbol (copy, block, STRUCT_DOMAIN,
+         bsym = lookup_symbol (copy.c_str (), block, STRUCT_DOMAIN,
                                &inner_is_a_field_of_this);
          if (bsym.symbol != NULL)
            {
@@ -3006,7 +2975,7 @@ classify_name (struct parser_state *par_state, const struct block *block,
          /* See if it's a file name. */
          struct symtab *symtab;
 
-         symtab = lookup_symtab (copy);
+         symtab = lookup_symtab (copy.c_str ());
          if (symtab)
            {
              yylval.bval = BLOCKVECTOR_BLOCK (SYMTAB_BLOCKVECTOR (symtab),
@@ -3025,13 +2994,14 @@ classify_name (struct parser_state *par_state, const struct block *block,
   /* See if it's an ObjC classname.  */
   if (par_state->language ()->la_language == language_objc && !bsym.symbol)
     {
-      CORE_ADDR Class = lookup_objc_class (par_state->gdbarch (), copy);
+      CORE_ADDR Class = lookup_objc_class (par_state->gdbarch (),
+                                          copy.c_str ());
       if (Class)
        {
          struct symbol *sym;
 
          yylval.theclass.theclass = Class;
-         sym = lookup_struct_typedef (copy,
+         sym = lookup_struct_typedef (copy.c_str (),
                                       par_state->expression_context_block, 1);
          if (sym)
            yylval.theclass.type = SYMBOL_TYPE (sym);
@@ -3047,7 +3017,7 @@ classify_name (struct parser_state *par_state, const struct block *block,
          || (copy[0] >= 'A' && copy[0] < 'A' + input_radix - 10)))
     {
       YYSTYPE newlval; /* Its value is ignored.  */
-      int hextype = parse_number (par_state, copy, yylval.sval.length,
+      int hextype = parse_number (par_state, copy.c_str (), yylval.sval.length,
                                  0, &newlval);
 
       if (hextype == INT)
@@ -3065,7 +3035,7 @@ classify_name (struct parser_state *par_state, const struct block *block,
   if (bsym.symbol == NULL
       && par_state->language ()->la_language == language_cplus
       && is_a_field_of_this.type == NULL
-      && lookup_minimal_symbol (copy, NULL, NULL).minsym == NULL)
+      && lookup_minimal_symbol (copy.c_str (), NULL, NULL).minsym == NULL)
     return UNKNOWN_CPP_NAME;
 
   return NAME;
@@ -3080,7 +3050,6 @@ classify_inner_name (struct parser_state *par_state,
                     const struct block *block, struct type *context)
 {
   struct type *type;
-  char *copy;
 
   if (context == NULL)
     return classify_name (par_state, block, false, false);
@@ -3089,16 +3058,18 @@ classify_inner_name (struct parser_state *par_state,
   if (!type_aggregate_p (type))
     return ERROR;
 
-  copy = copy_name (yylval.ssym.stoken);
+  std::string copy = copy_name (yylval.ssym.stoken);
   /* N.B. We assume the symbol can only be in VAR_DOMAIN.  */
-  yylval.ssym.sym = cp_lookup_nested_symbol (type, copy, block, VAR_DOMAIN);
+  yylval.ssym.sym = cp_lookup_nested_symbol (type, copy.c_str (), block,
+                                            VAR_DOMAIN);
 
   /* If no symbol was found, search for a matching base class named
      COPY.  This will allow users to enter qualified names of class members
      relative to the `this' pointer.  */
   if (yylval.ssym.sym.symbol == NULL)
     {
-      struct type *base_type = cp_find_type_baseclass_by_name (type, copy);
+      struct type *base_type = cp_find_type_baseclass_by_name (type,
+                                                              copy.c_str ());
 
       if (base_type != NULL)
        {
@@ -3117,7 +3088,8 @@ classify_inner_name (struct parser_state *par_state,
         named COPY when we really wanted a base class of the same name.
         Double-check this case by looking for a base class.  */
       {
-       struct type *base_type = cp_find_type_baseclass_by_name (type, copy);
+       struct type *base_type
+         = cp_find_type_baseclass_by_name (type, copy.c_str ());
 
        if (base_type != NULL)
          {
@@ -3283,9 +3255,9 @@ yylex (void)
   if (checkpoint > 0)
     {
       current.value.sval.ptr
-       = (const char *) obstack_copy0 (&cpstate->expansion_obstack,
-                                       current.value.sval.ptr,
-                                       current.value.sval.length);
+       = obstack_strndup (&cpstate->expansion_obstack,
+                          current.value.sval.ptr,
+                          current.value.sval.length);
 
       token_fifo[0] = current;
       if (checkpoint > 1)
@@ -3369,13 +3341,13 @@ c_print_token (FILE *file, int type, YYSTYPE value)
 
     case NSSTRING:
     case DOLLAR_VARIABLE:
-      parser_fprintf (file, "sval<%s>", copy_name (value.sval));
+      parser_fprintf (file, "sval<%s>", copy_name (value.sval).c_str ());
       break;
 
     case TYPENAME:
       parser_fprintf (file, "tsym<type=%s, name=%s>",
                      TYPE_SAFE_NAME (value.tsym.type),
-                     copy_name (value.tsym.stoken));
+                     copy_name (value.tsym.stoken).c_str ());
       break;
 
     case NAME:
@@ -3383,9 +3355,9 @@ c_print_token (FILE *file, int type, YYSTYPE value)
     case NAME_OR_INT:
     case BLOCKNAME:
       parser_fprintf (file, "ssym<name=%s, sym=%s, field_of_this=%d>",
-                      copy_name (value.ssym.stoken),
+                      copy_name (value.ssym.stoken).c_str (),
                       (value.ssym.sym.symbol == NULL
-                       ? "(null)" : SYMBOL_PRINT_NAME (value.ssym.sym.symbol)),
+                       ? "(null)" : value.ssym.sym.symbol->print_name ()),
                       value.ssym.is_a_field_of_this);
       break;
 
This page took 0.03414 seconds and 4 git commands to generate.