diff options
Diffstat (limited to 'gdb/c-exp.y')
| -rw-r--r-- | gdb/c-exp.y | 32 |
1 files changed, 31 insertions, 1 deletions
diff --git a/gdb/c-exp.y b/gdb/c-exp.y index 94d0737073..5cc1e9614e 100644 --- a/gdb/c-exp.y +++ b/gdb/c-exp.y @@ -186,6 +186,7 @@ static struct stoken operator_stoken (const char *); %token <tsval> STRING %token <tsval> CHAR %token <ssym> NAME /* BLOCKNAME defined below to give it higher precedence. */ +%token <ssym> ENTRY %token <ssym> UNKNOWN_CPP_NAME %token <voidval> COMPLETE %token <tsym> TYPENAME @@ -194,6 +195,9 @@ static struct stoken operator_stoken (const char *); %type <ssym> name_not_typename %type <tsym> typename +/* It is UNKNOWN_CPP_NAME or ENTRY, depending on the context. */ +%type <ssym> unknown_cpp_name + /* A NAME_OR_INT is a symbol which is not known in the symbol table, but which would parse as a valid number in the current input radix. E.g. "c" when input_radix==16. Depending on the parse, it will be @@ -392,7 +396,7 @@ exp : exp '(' write_exp_elt_opcode (OP_FUNCALL); } ; -exp : UNKNOWN_CPP_NAME '(' +exp : unknown_cpp_name '(' { /* This could potentially be a an argument defined lookup function (Koenig). */ @@ -415,6 +419,10 @@ exp : UNKNOWN_CPP_NAME '(' } ; +unknown_cpp_name : UNKNOWN_CPP_NAME + | ENTRY + ; + lcurly : '{' { start_arglist (); } ; @@ -756,6 +764,21 @@ block : block COLONCOLON name $$ = SYMBOL_BLOCK_VALUE (tem); } ; +variable: name_not_typename '@' ENTRY + { struct symbol *sym = $1.sym; + + if (sym == NULL || !SYMBOL_IS_ARGUMENT (sym) + || !symbol_read_needs_frame (sym)) + error (_("@entry can be used only for function " + "parameters, not for \"%s\""), + copy_name ($1.stoken)); + + write_exp_elt_opcode (OP_VAR_ENTRY_VALUE); + write_exp_elt_sym (sym); + write_exp_elt_opcode (OP_VAR_ENTRY_VALUE); + } + ; + variable: block COLONCOLON name { struct symbol *sym; sym = lookup_symbol (copy_name ($3), $1, @@ -1317,11 +1340,13 @@ name : NAME { $$ = $1.stoken; } | TYPENAME { $$ = $1.stoken; } | NAME_OR_INT { $$ = $1.stoken; } | UNKNOWN_CPP_NAME { $$ = $1.stoken; } + | ENTRY { $$ = $1.stoken; } | operator { $$ = $1; } ; name_not_typename : NAME | BLOCKNAME + | ENTRY /* These would be useful if name_not_typename was useful, but it is just a fake for "variable", so these cause reduce/reduce conflicts because the parser can't tell whether NAME_OR_INT is a name_not_typename (=variable, @@ -2525,6 +2550,11 @@ yylex (void) current.token = lex_one_token (); if (current.token == NAME) current.token = classify_name (expression_context_block); + if ((current.token == NAME || current.token == UNKNOWN_CPP_NAME) + && yylval.sval.length == strlen ("entry") + && strncmp (yylval.sval.ptr, "entry", strlen ("entry")) == 0) + current.token = ENTRY; + if (parse_language->la_language != language_cplus || (current.token != TYPENAME && current.token != COLONCOLON)) return current.token; |
