%{
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*
* Copyright 2006 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/*
* Copyright (c) 2013 by Delphix. All rights reserved.
* Copyright (c) 2013, Joyent, Inc. All rights reserved.
*/
#include <dt_impl.h>
#define OP1(op, c) dt_node_op1(op, c)
#define OP2(op, l, r) dt_node_op2(op, l, r)
#define OP3(x, y, z) dt_node_op3(x, y, z)
#define LINK(l, r) dt_node_link(l, r)
#define DUP(s) strdup(s)
%}
%union {
dt_node_t *l_node;
dt_decl_t *l_decl;
char *l_str;
uintmax_t l_int;
int l_tok;
}
%token DT_TOK_COMMA DT_TOK_ELLIPSIS
%token DT_TOK_ASGN DT_TOK_ADD_EQ DT_TOK_SUB_EQ DT_TOK_MUL_EQ
%token DT_TOK_DIV_EQ DT_TOK_MOD_EQ DT_TOK_AND_EQ DT_TOK_XOR_EQ DT_TOK_OR_EQ
%token DT_TOK_LSH_EQ DT_TOK_RSH_EQ DT_TOK_QUESTION DT_TOK_COLON
%token DT_TOK_LOR DT_TOK_LXOR DT_TOK_LAND
%token DT_TOK_BOR DT_TOK_XOR DT_TOK_BAND DT_TOK_EQU DT_TOK_NEQ
%token DT_TOK_LT DT_TOK_LE DT_TOK_GT DT_TOK_GE DT_TOK_LSH DT_TOK_RSH
%token DT_TOK_ADD DT_TOK_SUB DT_TOK_MUL DT_TOK_DIV DT_TOK_MOD
%token DT_TOK_LNEG DT_TOK_BNEG DT_TOK_ADDADD DT_TOK_SUBSUB
%token DT_TOK_PREINC DT_TOK_POSTINC DT_TOK_PREDEC DT_TOK_POSTDEC
%token DT_TOK_IPOS DT_TOK_INEG DT_TOK_DEREF DT_TOK_ADDROF
%token DT_TOK_OFFSETOF DT_TOK_SIZEOF DT_TOK_STRINGOF DT_TOK_XLATE
%token DT_TOK_LPAR DT_TOK_RPAR DT_TOK_LBRAC DT_TOK_RBRAC DT_TOK_PTR DT_TOK_DOT
%token <l_str> DT_TOK_STRING
%token <l_str> DT_TOK_IDENT
%token <l_str> DT_TOK_PSPEC
%token <l_str> DT_TOK_AGG
%token <l_str> DT_TOK_TNAME
%token <l_int> DT_TOK_INT
%token DT_KEY_AUTO
%token DT_KEY_BREAK
%token DT_KEY_CASE
%token DT_KEY_CHAR
%token DT_KEY_CONST
%token DT_KEY_CONTINUE
%token DT_KEY_COUNTER
%token DT_KEY_DEFAULT
%token DT_KEY_DO
%token DT_KEY_DOUBLE
%token DT_KEY_ELSE
%token DT_KEY_ENUM
%token DT_KEY_EXTERN
%token DT_KEY_FLOAT
%token DT_KEY_FOR
%token DT_KEY_GOTO
%token DT_KEY_IF
%token DT_KEY_IMPORT
%token DT_KEY_INLINE
%token DT_KEY_INT
%token DT_KEY_LONG
%token DT_KEY_PROBE
%token DT_KEY_PROVIDER
%token DT_KEY_REGISTER
%token DT_KEY_RESTRICT
%token DT_KEY_RETURN
%token DT_KEY_SELF
%token DT_KEY_SHORT
%token DT_KEY_SIGNED
%token DT_KEY_STATIC
%token DT_KEY_STRING
%token DT_KEY_STRUCT
%token DT_KEY_SWITCH
%token DT_KEY_THIS
%token DT_KEY_TYPEDEF
%token DT_KEY_UNION
%token DT_KEY_UNSIGNED
%token DT_KEY_USERLAND
%token DT_KEY_VOID
%token DT_KEY_VOLATILE
%token DT_KEY_WHILE
%token DT_KEY_XLATOR
%token DT_TOK_EPRED
%token DT_CTX_DEXPR
%token DT_CTX_DPROG
%token DT_CTX_DTYPE
%token DT_TOK_EOF 0
%left DT_TOK_COMMA
%right DT_TOK_ASGN DT_TOK_ADD_EQ DT_TOK_SUB_EQ DT_TOK_MUL_EQ DT_TOK_DIV_EQ
DT_TOK_MOD_EQ DT_TOK_AND_EQ DT_TOK_XOR_EQ DT_TOK_OR_EQ DT_TOK_LSH_EQ
DT_TOK_RSH_EQ
%left DT_TOK_QUESTION DT_TOK_COLON
%left DT_TOK_LOR
%left DT_TOK_LXOR
%left DT_TOK_LAND
%left DT_TOK_BOR
%left DT_TOK_XOR
%left DT_TOK_BAND
%left DT_TOK_EQU DT_TOK_NEQ
%left DT_TOK_LT DT_TOK_LE DT_TOK_GT DT_TOK_GE
%left DT_TOK_LSH DT_TOK_RSH
%left DT_TOK_ADD DT_TOK_SUB
%left DT_TOK_MUL DT_TOK_DIV DT_TOK_MOD
%right DT_TOK_LNEG DT_TOK_BNEG DT_TOK_ADDADD DT_TOK_SUBSUB
DT_TOK_IPOS DT_TOK_INEG
%right DT_TOK_DEREF DT_TOK_ADDROF DT_TOK_SIZEOF DT_TOK_STRINGOF DT_TOK_XLATE
%left DT_TOK_LPAR DT_TOK_RPAR DT_TOK_LBRAC DT_TOK_RBRAC DT_TOK_PTR DT_TOK_DOT
%type <l_node> d_expression
%type <l_node> d_program
%type <l_node> d_type
%type <l_node> translation_unit
%type <l_node> external_declaration
%type <l_node> inline_definition
%type <l_node> translator_definition
%type <l_node> translator_member_list
%type <l_node> translator_member
%type <l_node> provider_definition
%type <l_node> provider_probe_list
%type <l_node> provider_probe
%type <l_node> probe_definition
%type <l_node> probe_specifiers
%type <l_node> probe_specifier_list
%type <l_node> probe_specifier
%type <l_node> statement_list
%type <l_node> statement
%type <l_node> declaration
%type <l_node> init_declarator_list
%type <l_node> init_declarator
%type <l_decl> type_specifier
%type <l_decl> type_qualifier
%type <l_decl> struct_or_union_specifier
%type <l_decl> specifier_qualifier_list
%type <l_decl> enum_specifier
%type <l_decl> declarator
%type <l_decl> direct_declarator
%type <l_decl> pointer
%type <l_decl> type_qualifier_list
%type <l_decl> type_name
%type <l_decl> abstract_declarator
%type <l_decl> direct_abstract_declarator
%type <l_node> parameter_type_list
%type <l_node> parameter_list
%type <l_node> parameter_declaration
%type <l_node> array
%type <l_node> array_parameters
%type <l_node> function
%type <l_node> function_parameters
%type <l_node> expression
%type <l_node> assignment_expression
%type <l_node> conditional_expression
%type <l_node> constant_expression
%type <l_node> logical_or_expression
%type <l_node> logical_xor_expression
%type <l_node> logical_and_expression
%type <l_node> inclusive_or_expression
%type <l_node> exclusive_or_expression
%type <l_node> and_expression
%type <l_node> equality_expression
%type <l_node> relational_expression
%type <l_node> shift_expression
%type <l_node> additive_expression
%type <l_node> multiplicative_expression
%type <l_node> cast_expression
%type <l_node> unary_expression
%type <l_node> postfix_expression
%type <l_node> primary_expression
%type <l_node> argument_expression_list
%type <l_tok> assignment_operator
%type <l_tok> unary_operator
%type <l_tok> struct_or_union
%type <l_str> dtrace_keyword_ident
%%
dtrace_program: d_expression DT_TOK_EOF { return (dt_node_root($1)); }
| d_program DT_TOK_EOF { return (dt_node_root($1)); }
| d_type DT_TOK_EOF { return (dt_node_root($1)); }
;
d_expression: DT_CTX_DEXPR { $$ = NULL; }
| DT_CTX_DEXPR expression { $$ = $2; }
;
d_program: DT_CTX_DPROG { $$ = dt_node_program(NULL); }
| DT_CTX_DPROG translation_unit { $$ = dt_node_program($2); }
;
d_type: DT_CTX_DTYPE { $$ = NULL; }
| DT_CTX_DTYPE type_name { $$ = (dt_node_t *)$2; }
;
translation_unit:
external_declaration
| translation_unit external_declaration { $$ = LINK($1, $2); }
;
external_declaration:
inline_definition
| translator_definition
| provider_definition
| probe_definition
| declaration
;
inline_definition:
DT_KEY_INLINE declaration_specifiers declarator
{ dt_scope_push(NULL, CTF_ERR); } DT_TOK_ASGN
assignment_expression ';' {
/*
* We push a new declaration scope before shifting the
* assignment_expression in order to preserve ds_class
* and ds_ident for use in dt_node_inline(). Once the
* entire inline_definition rule is matched, pop the
* scope and construct the inline using the saved decl.
*/
dt_scope_pop();
$$ = dt_node_inline($6);
}
;
translator_definition:
DT_KEY_XLATOR type_name DT_TOK_LT type_name
DT_TOK_IDENT DT_TOK_GT '{' translator_member_list '}' ';' {
$$ = dt_node_xlator($2, $4, $5, $8);
}
| DT_KEY_XLATOR type_name DT_TOK_LT type_name
DT_TOK_IDENT DT_TOK_GT '{' '}' ';' {
$$ = dt_node_xlator($2, $4, $5, NULL);
}
;
translator_member_list:
translator_member
| translator_member_list translator_member { $$ = LINK($1,$2); }
;
translator_member:
DT_TOK_IDENT DT_TOK_ASGN assignment_expression ';' {
$$ = dt_node_member(NULL, $1, $3);
}
;
provider_definition:
DT_KEY_PROVIDER DT_TOK_IDENT '{' provider_probe_list '}' ';' {
$$ = dt_node_provider($2, $4);
}
| DT_KEY_PROVIDER DT_TOK_IDENT '{' '}' ';' {
$$ = dt_node_provider($2, NULL);
}
;
provider_probe_list:
provider_probe
| provider_probe_list provider_probe { $$ = LINK($1, $2); }
;
provider_probe:
DT_KEY_PROBE DT_TOK_IDENT function DT_TOK_COLON function ';' {
$$ = dt_node_probe($2, 2, $3, $5);
}
| DT_KEY_PROBE DT_TOK_IDENT function ';' {
$$ = dt_node_probe($2, 1, $3, NULL);
}
;
probe_definition:
probe_specifiers {
/*
* If the input stream is a file, do not permit a probe
* specification without / <pred> / or { <act> } after
* it. This can only occur if the next token is EOF or
* an ambiguous predicate was slurped up as a comment.
* We cannot perform this check if input() is a string
* because dtrace(1M) [-fmnP] also use the compiler and
* things like dtrace -n BEGIN have to be accepted.
*/
if (yypcb->pcb_fileptr != NULL) {
dnerror($1, D_SYNTAX, "expected predicate and/"
"or actions following probe description\n");
}
$$ = dt_node_clause($1, NULL, NULL);
}
| probe_specifiers '{' statement_list '}' {
$$ = dt_node_clause($1, NULL, $3);
}
| probe_specifiers DT_TOK_DIV expression DT_TOK_EPRED {
dnerror($3, D_SYNTAX, "expected actions { } following "
"probe description and predicate\n");
}
| probe_specifiers DT_TOK_DIV expression DT_TOK_EPRED
'{' statement_list '}' {
$$ = dt_node_clause($1, $3, $6);
}
;
probe_specifiers:
probe_specifier_list { yybegin(YYS_EXPR); $$ = $1; }
;
probe_specifier_list:
probe_specifier
| probe_specifier_list DT_TOK_COMMA probe_specifier {
$$ = LINK($1, $3);
}
;
probe_specifier:
DT_TOK_PSPEC { $$ = dt_node_pdesc_by_name($1); }
| DT_TOK_INT { $$ = dt_node_pdesc_by_id($1); }
;
statement_list: statement { $$ = $1; }
| statement_list ';' statement { $$ = LINK($1, $3); }
;
statement: /* empty */ { $$ = NULL; }
| expression { $$ = dt_node_statement($1); }
;
argument_expression_list:
assignment_expression
| argument_expression_list DT_TOK_COMMA assignment_expression {
$$ = LINK($1, $3);
}
;
primary_expression:
DT_TOK_IDENT { $$ = dt_node_ident($1); }
| DT_TOK_AGG { $$ = dt_node_ident($1); }
| DT_TOK_INT { $$ = dt_node_int($1); }
| DT_TOK_STRING { $$ = dt_node_string($1); }
| DT_KEY_SELF { $$ = dt_node_ident(DUP("self")); }
| DT_KEY_THIS { $$ = dt_node_ident(DUP("this")); }
| DT_TOK_LPAR expression DT_TOK_RPAR { $$ = $2; }
;
postfix_expression:
primary_expression
| postfix_expression
DT_TOK_LBRAC argument_expression_list DT_TOK_RBRAC {
$$ = OP2(DT_TOK_LBRAC, $1, $3);
}
| postfix_expression DT_TOK_LPAR DT_TOK_RPAR {
$$ = dt_node_func($1, NULL);
}
| postfix_expression
DT_TOK_LPAR argument_expression_list DT_TOK_RPAR {
$$ = dt_node_func($1, $3);
}
| postfix_expression DT_TOK_DOT DT_TOK_IDENT {
$$ = OP2(DT_TOK_DOT, $1, dt_node_ident($3));
}
| postfix_expression DT_TOK_DOT DT_TOK_TNAME {
$$ = OP2(DT_TOK_DOT, $1, dt_node_ident($3));
}
| postfix_expression DT_TOK_DOT dtrace_keyword_ident {
$$ = OP2(DT_TOK_DOT, $1, dt_node_ident($3));
}
| postfix_expression DT_TOK_PTR DT_TOK_IDENT {
$$ = OP2(DT_TOK_PTR, $1, dt_node_ident($3));
}
| postfix_expression DT_TOK_PTR DT_TOK_TNAME {
$$ = OP2(DT_TOK_PTR, $1, dt_node_ident($3));
}
| postfix_expression DT_TOK_PTR dtrace_keyword_ident {
$$ = OP2(DT_TOK_PTR, $1, dt_node_ident($3));
}
| postfix_expression DT_TOK_ADDADD {
$$ = OP1(DT_TOK_POSTINC, $1);
}
| postfix_expression DT_TOK_SUBSUB {
$$ = OP1(DT_TOK_POSTDEC, $1);
}
| DT_TOK_OFFSETOF DT_TOK_LPAR type_name DT_TOK_COMMA
DT_TOK_IDENT DT_TOK_RPAR {
$$ = dt_node_offsetof($3, $5);
}
| DT_TOK_OFFSETOF DT_TOK_LPAR type_name DT_TOK_COMMA
DT_TOK_TNAME DT_TOK_RPAR {
$$ = dt_node_offsetof($3, $5);
}
| DT_TOK_OFFSETOF DT_TOK_LPAR type_name DT_TOK_COMMA
dtrace_keyword_ident DT_TOK_RPAR {
$$ = dt_node_offsetof($3, $5);
}
| DT_TOK_XLATE DT_TOK_LT type_name DT_TOK_GT
DT_TOK_LPAR expression DT_TOK_RPAR {
$$ = OP2(DT_TOK_XLATE, dt_node_type($3), $6);
}
;
unary_expression:
postfix_expression
| DT_TOK_ADDADD unary_expression { $$ = OP1(DT_TOK_PREINC, $2); }
| DT_TOK_SUBSUB unary_expression { $$ = OP1(DT_TOK_PREDEC, $2); }
| unary_operator cast_expression { $$ = OP1($1, $2); }
| DT_TOK_SIZEOF unary_expression { $$ = OP1(DT_TOK_SIZEOF, $2); }
| DT_TOK_SIZEOF DT_TOK_LPAR type_name DT_TOK_RPAR {
$$ = OP1(DT_TOK_SIZEOF, dt_node_type($3));
}
| DT_TOK_STRINGOF unary_expression {
$$ = OP1(DT_TOK_STRINGOF, $2);
}
;
unary_operator: DT_TOK_BAND { $$ = DT_TOK_ADDROF; }
| DT_TOK_MUL { $$ = DT_TOK_DEREF; }
| DT_TOK_ADD { $$ = DT_TOK_IPOS; }
| DT_TOK_SUB { $$ = DT_TOK_INEG; }
| DT_TOK_BNEG { $$ = DT_TOK_BNEG; }
| DT_TOK_LNEG { $$ = DT_TOK_LNEG; }
;
cast_expression:
unary_expression
| DT_TOK_LPAR type_name DT_TOK_RPAR cast_expression {
$$ = OP2(DT_TOK_LPAR, dt_node_type($2), $4);
}
;
multiplicative_expression:
cast_expression
| multiplicative_expression DT_TOK_MUL cast_expression {
$$ = OP2(DT_TOK_MUL, $1, $3);
}
| multiplicative_expression DT_TOK_DIV cast_expression {
$$ = OP2(DT_TOK_DIV, $1, $3);
}
| multiplicative_expression DT_TOK_MOD cast_expression {
$$ = OP2(DT_TOK_MOD, $1, $3);
}
;
additive_expression:
multiplicative_expression
| additive_expression DT_TOK_ADD multiplicative_expression {
$$ = OP2(DT_TOK_ADD, $1, $3);
}
| additive_expression DT_TOK_SUB multiplicative_expression {
$$ = OP2(DT_TOK_SUB, $1, $3);
}
;
shift_expression:
additive_expression
| shift_expression DT_TOK_LSH additive_expression {
$$ = OP2(DT_TOK_LSH, $1, $3);
}
| shift_expression DT_TOK_RSH additive_expression {
$$ = OP2(DT_TOK_RSH, $1, $3);
}
;
relational_expression:
shift_expression
| relational_expression DT_TOK_LT shift_expression {
$$ = OP2(DT_TOK_LT, $1, $3);
}
| relational_expression DT_TOK_GT shift_expression {
$$ = OP2(DT_TOK_GT, $1, $3);
}
| relational_expression DT_TOK_LE shift_expression {
$$ = OP2(DT_TOK_LE, $1, $3);
}
| relational_expression DT_TOK_GE shift_expression {
$$ = OP2(DT_TOK_GE, $1, $3);
}
;
equality_expression:
relational_expression
| equality_expression DT_TOK_EQU relational_expression {
$$ = OP2(DT_TOK_EQU, $1, $3);
}
| equality_expression DT_TOK_NEQ relational_expression {
$$ = OP2(DT_TOK_NEQ, $1, $3);
}
;
and_expression:
equality_expression
| and_expression DT_TOK_BAND equality_expression {
$$ = OP2(DT_TOK_BAND, $1, $3);
}
;
exclusive_or_expression:
and_expression
| exclusive_or_expression DT_TOK_XOR and_expression {
$$ = OP2(DT_TOK_XOR, $1, $3);
}
;
inclusive_or_expression:
exclusive_or_expression
| inclusive_or_expression DT_TOK_BOR exclusive_or_expression {
$$ = OP2(DT_TOK_BOR, $1, $3);
}
;
logical_and_expression:
inclusive_or_expression
| logical_and_expression DT_TOK_LAND inclusive_or_expression {
$$ = OP2(DT_TOK_LAND, $1, $3);
}
;
logical_xor_expression:
logical_and_expression
| logical_xor_expression DT_TOK_LXOR logical_and_expression {
$$ = OP2(DT_TOK_LXOR, $1, $3);
}
;
logical_or_expression:
logical_xor_expression
| logical_or_expression DT_TOK_LOR logical_xor_expression {
$$ = OP2(DT_TOK_LOR, $1, $3);
}
;
constant_expression: conditional_expression
;
conditional_expression:
logical_or_expression
| logical_or_expression DT_TOK_QUESTION expression DT_TOK_COLON
conditional_expression { $$ = OP3($1, $3, $5); }
;
assignment_expression:
conditional_expression
| unary_expression assignment_operator assignment_expression {
$$ = OP2($2, $1, $3);
}
;
assignment_operator:
DT_TOK_ASGN { $$ = DT_TOK_ASGN; }
| DT_TOK_MUL_EQ { $$ = DT_TOK_MUL_EQ; }
| DT_TOK_DIV_EQ { $$ = DT_TOK_DIV_EQ; }
| DT_TOK_MOD_EQ { $$ = DT_TOK_MOD_EQ; }
| DT_TOK_ADD_EQ { $$ = DT_TOK_ADD_EQ; }
| DT_TOK_SUB_EQ { $$ = DT_TOK_SUB_EQ; }
| DT_TOK_LSH_EQ { $$ = DT_TOK_LSH_EQ; }
| DT_TOK_RSH_EQ { $$ = DT_TOK_RSH_EQ; }
| DT_TOK_AND_EQ { $$ = DT_TOK_AND_EQ; }
| DT_TOK_XOR_EQ { $$ = DT_TOK_XOR_EQ; }
| DT_TOK_OR_EQ { $$ = DT_TOK_OR_EQ; }
;
expression: assignment_expression
| expression DT_TOK_COMMA assignment_expression {
$$ = OP2(DT_TOK_COMMA, $1, $3);
}
;
declaration: declaration_specifiers ';' {
$$ = dt_node_decl();
dt_decl_free(dt_decl_pop());
yybegin(YYS_CLAUSE);
}
| declaration_specifiers init_declarator_list ';' {
$$ = $2;
dt_decl_free(dt_decl_pop());
yybegin(YYS_CLAUSE);
}
;
declaration_specifiers:
d_storage_class_specifier
| d_storage_class_specifier declaration_specifiers
| type_specifier
| type_specifier declaration_specifiers
| type_qualifier
| type_qualifier declaration_specifiers
;
parameter_declaration_specifiers:
storage_class_specifier
| storage_class_specifier declaration_specifiers
| type_specifier
| type_specifier declaration_specifiers
| type_qualifier
| type_qualifier declaration_specifiers
;
storage_class_specifier:
DT_KEY_AUTO { dt_decl_class(DT_DC_AUTO); }
| DT_KEY_REGISTER { dt_decl_class(DT_DC_REGISTER); }
| DT_KEY_STATIC { dt_decl_class(DT_DC_STATIC); }
| DT_KEY_EXTERN { dt_decl_class(DT_DC_EXTERN); }
| DT_KEY_TYPEDEF { dt_decl_class(DT_DC_TYPEDEF); }
;
d_storage_class_specifier:
storage_class_specifier
| DT_KEY_SELF { dt_decl_class(DT_DC_SELF); }
| DT_KEY_THIS { dt_decl_class(DT_DC_THIS); }
;
type_specifier: DT_KEY_VOID { $$ = dt_decl_spec(CTF_K_INTEGER, DUP("void")); }
| DT_KEY_CHAR { $$ = dt_decl_spec(CTF_K_INTEGER, DUP("char")); }
| DT_KEY_SHORT { $$ = dt_decl_attr(DT_DA_SHORT); }
| DT_KEY_INT { $$ = dt_decl_spec(CTF_K_INTEGER, DUP("int")); }
| DT_KEY_LONG { $$ = dt_decl_attr(DT_DA_LONG); }
| DT_KEY_FLOAT { $$ = dt_decl_spec(CTF_K_FLOAT, DUP("float")); }
| DT_KEY_DOUBLE { $$ = dt_decl_spec(CTF_K_FLOAT, DUP("double")); }
| DT_KEY_SIGNED { $$ = dt_decl_attr(DT_DA_SIGNED); }
| DT_KEY_UNSIGNED { $$ = dt_decl_attr(DT_DA_UNSIGNED); }
| DT_KEY_USERLAND { $$ = dt_decl_attr(DT_DA_USER); }
| DT_KEY_STRING {
$$ = dt_decl_spec(CTF_K_TYPEDEF, DUP("string"));
}
| DT_TOK_TNAME { $$ = dt_decl_spec(CTF_K_TYPEDEF, $1); }
| struct_or_union_specifier
| enum_specifier
;
type_qualifier: DT_KEY_CONST { $$ = dt_decl_attr(DT_DA_CONST); }
| DT_KEY_RESTRICT { $$ = dt_decl_attr(DT_DA_RESTRICT); }
| DT_KEY_VOLATILE { $$ = dt_decl_attr(DT_DA_VOLATILE); }
;
struct_or_union_specifier:
struct_or_union_definition struct_declaration_list '}' {
$$ = dt_scope_pop();
}
| struct_or_union DT_TOK_IDENT { $$ = dt_decl_spec($1, $2); }
| struct_or_union DT_TOK_TNAME { $$ = dt_decl_spec($1, $2); }
;
struct_or_union_definition:
struct_or_union '{' { dt_decl_sou($1, NULL); }
| struct_or_union DT_TOK_IDENT '{' { dt_decl_sou($1, $2); }
| struct_or_union DT_TOK_TNAME '{' { dt_decl_sou($1, $2); }
;
struct_or_union:
DT_KEY_STRUCT { $$ = CTF_K_STRUCT; }
| DT_KEY_UNION { $$ = CTF_K_UNION; }
;
struct_declaration_list:
struct_declaration
| struct_declaration_list struct_declaration
;
init_declarator_list:
init_declarator
| init_declarator_list DT_TOK_COMMA init_declarator {
$$ = LINK($1, $3);
}
;
init_declarator:
declarator {
$$ = dt_node_decl();
dt_decl_reset();
}
;
struct_declaration:
specifier_qualifier_list struct_declarator_list ';' {
dt_decl_free(dt_decl_pop());
}
;
specifier_qualifier_list:
type_specifier
| type_specifier specifier_qualifier_list { $$ = $2; }
| type_qualifier
| type_qualifier specifier_qualifier_list { $$ = $2; }
;
struct_declarator_list:
struct_declarator
| struct_declarator_list DT_TOK_COMMA struct_declarator
;
struct_declarator:
declarator { dt_decl_member(NULL); }
| DT_TOK_COLON constant_expression { dt_decl_member($2); }
| declarator DT_TOK_COLON constant_expression {
dt_decl_member($3);
}
;
enum_specifier:
enum_definition enumerator_list '}' { $$ = dt_scope_pop(); }
| DT_KEY_ENUM DT_TOK_IDENT { $$ = dt_decl_spec(CTF_K_ENUM, $2); }
| DT_KEY_ENUM DT_TOK_TNAME { $$ = dt_decl_spec(CTF_K_ENUM, $2); }
;
enum_definition:
DT_KEY_ENUM '{' { dt_decl_enum(NULL); }
| DT_KEY_ENUM DT_TOK_IDENT '{' { dt_decl_enum($2); }
| DT_KEY_ENUM DT_TOK_TNAME '{' { dt_decl_enum($2); }
;
enumerator_list:
enumerator
| enumerator_list DT_TOK_COMMA enumerator
;
enumerator: DT_TOK_IDENT { dt_decl_enumerator($1, NULL); }
| DT_TOK_IDENT DT_TOK_ASGN expression {
dt_decl_enumerator($1, $3);
}
;
declarator: direct_declarator
| pointer direct_declarator
;
direct_declarator:
DT_TOK_IDENT { $$ = dt_decl_ident($1); }
| lparen declarator DT_TOK_RPAR { $$ = $2; }
| direct_declarator array { dt_decl_array($2); }
| direct_declarator function { dt_decl_func($1, $2); }
;
lparen: DT_TOK_LPAR { dt_decl_top()->dd_attr |= DT_DA_PAREN; }
;
pointer: DT_TOK_MUL { $$ = dt_decl_ptr(); }
| DT_TOK_MUL type_qualifier_list { $$ = dt_decl_ptr(); }
| DT_TOK_MUL pointer { $$ = dt_decl_ptr(); }
| DT_TOK_MUL type_qualifier_list pointer { $$ = dt_decl_ptr(); }
;
type_qualifier_list:
type_qualifier
| type_qualifier_list type_qualifier { $$ = $2; }
;
parameter_type_list:
parameter_list
| DT_TOK_ELLIPSIS { $$ = dt_node_vatype(); }
| parameter_list DT_TOK_COMMA DT_TOK_ELLIPSIS {
$$ = LINK($1, dt_node_vatype());
}
;
parameter_list: parameter_declaration
| parameter_list DT_TOK_COMMA parameter_declaration {
$$ = LINK($1, $3);
}
;
parameter_declaration:
parameter_declaration_specifiers {
$$ = dt_node_type(NULL);
}
| parameter_declaration_specifiers declarator {
$$ = dt_node_type(NULL);
}
| parameter_declaration_specifiers abstract_declarator {
$$ = dt_node_type(NULL);
}
;
type_name: specifier_qualifier_list {
$$ = dt_decl_pop();
}
| specifier_qualifier_list abstract_declarator {
$$ = dt_decl_pop();
}
;
abstract_declarator:
pointer
| direct_abstract_declarator
| pointer direct_abstract_declarator
;
direct_abstract_declarator:
lparen abstract_declarator DT_TOK_RPAR { $$ = $2; }
| direct_abstract_declarator array { dt_decl_array($2); }
| array { dt_decl_array($1); $$ = NULL; }
| direct_abstract_declarator function { dt_decl_func($1, $2); }
| function { dt_decl_func(NULL, $1); }
;
array: DT_TOK_LBRAC { dt_scope_push(NULL, CTF_ERR); }
array_parameters DT_TOK_RBRAC {
dt_scope_pop();
$$ = $3;
}
;
array_parameters:
/* empty */ { $$ = NULL; }
| constant_expression { $$ = $1; }
| parameter_type_list { $$ = $1; }
;
function: DT_TOK_LPAR { dt_scope_push(NULL, CTF_ERR); }
function_parameters DT_TOK_RPAR {
dt_scope_pop();
$$ = $3;
}
;
function_parameters:
/* empty */ { $$ = NULL; }
| parameter_type_list { $$ = $1; }
;
dtrace_keyword_ident:
DT_KEY_PROBE { $$ = DUP("probe"); }
| DT_KEY_PROVIDER { $$ = DUP("provider"); }
| DT_KEY_SELF { $$ = DUP("self"); }
| DT_KEY_STRING { $$ = DUP("string"); }
| DT_TOK_STRINGOF { $$ = DUP("stringof"); }
| DT_KEY_USERLAND { $$ = DUP("userland"); }
| DT_TOK_XLATE { $$ = DUP("xlate"); }
| DT_KEY_XLATOR { $$ = DUP("translator"); }
;
%%