1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 24*0Sstevel@tonic-gate * Use is subject to license terms. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate #ifndef _DT_PARSER_H 28*0Sstevel@tonic-gate #define _DT_PARSER_H 29*0Sstevel@tonic-gate 30*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 31*0Sstevel@tonic-gate 32*0Sstevel@tonic-gate #include <sys/types.h> 33*0Sstevel@tonic-gate #include <sys/dtrace.h> 34*0Sstevel@tonic-gate 35*0Sstevel@tonic-gate #include <libctf.h> 36*0Sstevel@tonic-gate #include <stdarg.h> 37*0Sstevel@tonic-gate #include <stdio.h> 38*0Sstevel@tonic-gate 39*0Sstevel@tonic-gate #ifdef __cplusplus 40*0Sstevel@tonic-gate extern "C" { 41*0Sstevel@tonic-gate #endif 42*0Sstevel@tonic-gate 43*0Sstevel@tonic-gate #include <dt_errtags.h> 44*0Sstevel@tonic-gate #include <dt_ident.h> 45*0Sstevel@tonic-gate #include <dt_decl.h> 46*0Sstevel@tonic-gate #include <dt_xlator.h> 47*0Sstevel@tonic-gate #include <dt_list.h> 48*0Sstevel@tonic-gate 49*0Sstevel@tonic-gate typedef struct dt_node { 50*0Sstevel@tonic-gate ctf_file_t *dn_ctfp; /* CTF type container for node's type */ 51*0Sstevel@tonic-gate ctf_id_t dn_type; /* CTF type reference for node's type */ 52*0Sstevel@tonic-gate uchar_t dn_kind; /* node kind (DT_NODE_*, defined below) */ 53*0Sstevel@tonic-gate uchar_t dn_flags; /* node flags (DT_NF_*, defined below) */ 54*0Sstevel@tonic-gate ushort_t dn_op; /* operator (DT_TOK_*, defined by lex) */ 55*0Sstevel@tonic-gate int dn_line; /* line number for error messages */ 56*0Sstevel@tonic-gate int dn_reg; /* register allocated by cg */ 57*0Sstevel@tonic-gate dtrace_attribute_t dn_attr; /* node stability attributes */ 58*0Sstevel@tonic-gate 59*0Sstevel@tonic-gate /* 60*0Sstevel@tonic-gate * D compiler nodes, as is the usual style, contain a union of the 61*0Sstevel@tonic-gate * different sub-elements required by the various kinds of nodes. 62*0Sstevel@tonic-gate * These sub-elements are accessed using the macros defined below. 63*0Sstevel@tonic-gate */ 64*0Sstevel@tonic-gate union { 65*0Sstevel@tonic-gate struct { 66*0Sstevel@tonic-gate uintmax_t _value; /* integer value */ 67*0Sstevel@tonic-gate char *_string; /* string value */ 68*0Sstevel@tonic-gate } _const; 69*0Sstevel@tonic-gate 70*0Sstevel@tonic-gate struct { 71*0Sstevel@tonic-gate dt_ident_t *_ident; /* identifier reference */ 72*0Sstevel@tonic-gate struct dt_node *_links[3]; /* child node pointers */ 73*0Sstevel@tonic-gate } _nodes; 74*0Sstevel@tonic-gate 75*0Sstevel@tonic-gate struct { 76*0Sstevel@tonic-gate struct dt_node *_descs; /* list of descriptions */ 77*0Sstevel@tonic-gate struct dt_node *_pred; /* predicate expression */ 78*0Sstevel@tonic-gate struct dt_node *_acts; /* action statement list */ 79*0Sstevel@tonic-gate dt_idhash_t *_locals; /* local variable hash */ 80*0Sstevel@tonic-gate dtrace_attribute_t _attr; /* context attributes */ 81*0Sstevel@tonic-gate } _clause; 82*0Sstevel@tonic-gate 83*0Sstevel@tonic-gate struct { 84*0Sstevel@tonic-gate char *_spec; /* specifier string (if any) */ 85*0Sstevel@tonic-gate dtrace_probedesc_t *_desc; /* final probe description */ 86*0Sstevel@tonic-gate } _pdesc; 87*0Sstevel@tonic-gate 88*0Sstevel@tonic-gate struct { 89*0Sstevel@tonic-gate char *_name; /* string name of member */ 90*0Sstevel@tonic-gate struct dt_node *_expr; /* expression node pointer */ 91*0Sstevel@tonic-gate } _member; 92*0Sstevel@tonic-gate 93*0Sstevel@tonic-gate struct { 94*0Sstevel@tonic-gate dt_xlator_t *_xlator; /* translator reference */ 95*0Sstevel@tonic-gate struct dt_node *_membs; /* list of member nodes */ 96*0Sstevel@tonic-gate } _xlator; 97*0Sstevel@tonic-gate 98*0Sstevel@tonic-gate struct { 99*0Sstevel@tonic-gate char *_name; /* string name of provider */ 100*0Sstevel@tonic-gate struct dt_provider *_pvp; /* provider references */ 101*0Sstevel@tonic-gate struct dt_node *_probes; /* list of probe nodes */ 102*0Sstevel@tonic-gate int _redecl; /* provider redeclared */ 103*0Sstevel@tonic-gate } _provider; 104*0Sstevel@tonic-gate } dn_u; 105*0Sstevel@tonic-gate 106*0Sstevel@tonic-gate struct dt_node *dn_list; /* parse tree list link */ 107*0Sstevel@tonic-gate struct dt_node *dn_link; /* allocation list link */ 108*0Sstevel@tonic-gate } dt_node_t; 109*0Sstevel@tonic-gate 110*0Sstevel@tonic-gate #define dn_value dn_u._const._value /* DT_NODE_INT */ 111*0Sstevel@tonic-gate #define dn_string dn_u._const._string /* STRING, IDENT, TYPE */ 112*0Sstevel@tonic-gate #define dn_ident dn_u._nodes._ident /* VAR,SYM,FUN,AGG,INL,PROBE */ 113*0Sstevel@tonic-gate #define dn_args dn_u._nodes._links[0] /* DT_NODE_VAR, FUNC */ 114*0Sstevel@tonic-gate #define dn_child dn_u._nodes._links[0] /* DT_NODE_OP1 */ 115*0Sstevel@tonic-gate #define dn_left dn_u._nodes._links[0] /* DT_NODE_OP2, OP3 */ 116*0Sstevel@tonic-gate #define dn_right dn_u._nodes._links[1] /* DT_NODE_OP2, OP3 */ 117*0Sstevel@tonic-gate #define dn_expr dn_u._nodes._links[2] /* DT_NODE_OP3, DEXPR */ 118*0Sstevel@tonic-gate #define dn_aggfun dn_u._nodes._links[0] /* DT_NODE_AGG */ 119*0Sstevel@tonic-gate #define dn_aggtup dn_u._nodes._links[1] /* DT_NODE_AGG */ 120*0Sstevel@tonic-gate #define dn_pdescs dn_u._clause._descs /* DT_NODE_CLAUSE */ 121*0Sstevel@tonic-gate #define dn_pred dn_u._clause._pred /* DT_NODE_CLAUSE */ 122*0Sstevel@tonic-gate #define dn_acts dn_u._clause._acts /* DT_NODE_CLAUSE */ 123*0Sstevel@tonic-gate #define dn_locals dn_u._clause._locals /* DT_NODE_CLAUSE */ 124*0Sstevel@tonic-gate #define dn_ctxattr dn_u._clause._attr /* DT_NODE_CLAUSE */ 125*0Sstevel@tonic-gate #define dn_spec dn_u._pdesc._spec /* DT_NODE_PDESC */ 126*0Sstevel@tonic-gate #define dn_desc dn_u._pdesc._desc /* DT_NODE_PDESC */ 127*0Sstevel@tonic-gate #define dn_membname dn_u._member._name /* DT_NODE_MEMBER */ 128*0Sstevel@tonic-gate #define dn_membexpr dn_u._member._expr /* DT_NODE_MEMBER */ 129*0Sstevel@tonic-gate #define dn_xlator dn_u._xlator._xlator /* DT_NODE_XLATOR */ 130*0Sstevel@tonic-gate #define dn_members dn_u._xlator._membs /* DT_NODE_XLATOR */ 131*0Sstevel@tonic-gate #define dn_provname dn_u._provider._name /* DT_NODE_PROVIDER */ 132*0Sstevel@tonic-gate #define dn_provider dn_u._provider._pvp /* DT_NODE_PROVIDER */ 133*0Sstevel@tonic-gate #define dn_provred dn_u._provider._redecl /* DT_NODE_PROVIDER */ 134*0Sstevel@tonic-gate #define dn_probes dn_u._provider._probes /* DT_NODE_PROVIDER */ 135*0Sstevel@tonic-gate 136*0Sstevel@tonic-gate #define DT_NODE_FREE 0 /* unused node (waiting to be freed) */ 137*0Sstevel@tonic-gate #define DT_NODE_INT 1 /* integer value */ 138*0Sstevel@tonic-gate #define DT_NODE_STRING 2 /* string value */ 139*0Sstevel@tonic-gate #define DT_NODE_IDENT 3 /* identifier */ 140*0Sstevel@tonic-gate #define DT_NODE_VAR 4 /* variable reference */ 141*0Sstevel@tonic-gate #define DT_NODE_SYM 5 /* symbol reference */ 142*0Sstevel@tonic-gate #define DT_NODE_TYPE 6 /* type reference or formal parameter */ 143*0Sstevel@tonic-gate #define DT_NODE_FUNC 7 /* function call */ 144*0Sstevel@tonic-gate #define DT_NODE_OP1 8 /* unary operator */ 145*0Sstevel@tonic-gate #define DT_NODE_OP2 9 /* binary operator */ 146*0Sstevel@tonic-gate #define DT_NODE_OP3 10 /* ternary operator */ 147*0Sstevel@tonic-gate #define DT_NODE_DEXPR 11 /* D expression action */ 148*0Sstevel@tonic-gate #define DT_NODE_DFUNC 12 /* D function action */ 149*0Sstevel@tonic-gate #define DT_NODE_AGG 13 /* aggregation */ 150*0Sstevel@tonic-gate #define DT_NODE_PDESC 14 /* probe description */ 151*0Sstevel@tonic-gate #define DT_NODE_CLAUSE 15 /* clause definition */ 152*0Sstevel@tonic-gate #define DT_NODE_INLINE 16 /* inline definition */ 153*0Sstevel@tonic-gate #define DT_NODE_MEMBER 17 /* member definition */ 154*0Sstevel@tonic-gate #define DT_NODE_XLATOR 18 /* translator definition */ 155*0Sstevel@tonic-gate #define DT_NODE_PROBE 19 /* probe definition */ 156*0Sstevel@tonic-gate #define DT_NODE_PROVIDER 20 /* provider definition */ 157*0Sstevel@tonic-gate #define DT_NODE_PROG 21 /* program translation unit */ 158*0Sstevel@tonic-gate 159*0Sstevel@tonic-gate #define DT_NF_SIGNED 0x01 /* data is a signed quantity (else unsigned) */ 160*0Sstevel@tonic-gate #define DT_NF_COOKED 0x02 /* data is a known type (else still cooking) */ 161*0Sstevel@tonic-gate #define DT_NF_REF 0x04 /* pass by reference (array, struct, union) */ 162*0Sstevel@tonic-gate #define DT_NF_LVALUE 0x08 /* node is an l-value according to ANSI-C */ 163*0Sstevel@tonic-gate #define DT_NF_WRITABLE 0x10 /* node is writable (can be modified) */ 164*0Sstevel@tonic-gate #define DT_NF_BITFIELD 0x20 /* node is an integer bitfield */ 165*0Sstevel@tonic-gate #define DT_NF_USERLAND 0x40 /* data is a userland address */ 166*0Sstevel@tonic-gate 167*0Sstevel@tonic-gate #define DT_TYPE_NAMELEN 128 /* reasonable size for ctf_type_name() */ 168*0Sstevel@tonic-gate 169*0Sstevel@tonic-gate extern int dt_node_is_integer(const dt_node_t *); 170*0Sstevel@tonic-gate extern int dt_node_is_float(const dt_node_t *); 171*0Sstevel@tonic-gate extern int dt_node_is_scalar(const dt_node_t *); 172*0Sstevel@tonic-gate extern int dt_node_is_arith(const dt_node_t *); 173*0Sstevel@tonic-gate extern int dt_node_is_vfptr(const dt_node_t *); 174*0Sstevel@tonic-gate extern int dt_node_is_dynamic(const dt_node_t *); 175*0Sstevel@tonic-gate extern int dt_node_is_string(const dt_node_t *); 176*0Sstevel@tonic-gate extern int dt_node_is_strcompat(const dt_node_t *); 177*0Sstevel@tonic-gate extern int dt_node_is_pointer(const dt_node_t *); 178*0Sstevel@tonic-gate extern int dt_node_is_void(const dt_node_t *); 179*0Sstevel@tonic-gate extern int dt_node_is_ptrcompat(const dt_node_t *, const dt_node_t *, 180*0Sstevel@tonic-gate ctf_file_t **, ctf_id_t *); 181*0Sstevel@tonic-gate extern int dt_node_is_argcompat(const dt_node_t *, const dt_node_t *); 182*0Sstevel@tonic-gate extern int dt_node_is_posconst(const dt_node_t *); 183*0Sstevel@tonic-gate extern int dt_node_is_actfunc(const dt_node_t *); 184*0Sstevel@tonic-gate 185*0Sstevel@tonic-gate extern dt_node_t *dt_node_int(uintmax_t); 186*0Sstevel@tonic-gate extern dt_node_t *dt_node_string(char *); 187*0Sstevel@tonic-gate extern dt_node_t *dt_node_ident(char *); 188*0Sstevel@tonic-gate extern dt_node_t *dt_node_type(dt_decl_t *); 189*0Sstevel@tonic-gate extern dt_node_t *dt_node_vatype(void); 190*0Sstevel@tonic-gate extern dt_node_t *dt_node_decl(void); 191*0Sstevel@tonic-gate extern dt_node_t *dt_node_func(dt_node_t *, dt_node_t *); 192*0Sstevel@tonic-gate extern dt_node_t *dt_node_offsetof(dt_decl_t *, char *); 193*0Sstevel@tonic-gate extern dt_node_t *dt_node_op1(int, dt_node_t *); 194*0Sstevel@tonic-gate extern dt_node_t *dt_node_op2(int, dt_node_t *, dt_node_t *); 195*0Sstevel@tonic-gate extern dt_node_t *dt_node_op3(dt_node_t *, dt_node_t *, dt_node_t *); 196*0Sstevel@tonic-gate extern dt_node_t *dt_node_statement(dt_node_t *); 197*0Sstevel@tonic-gate extern dt_node_t *dt_node_pdesc_by_name(char *); 198*0Sstevel@tonic-gate extern dt_node_t *dt_node_pdesc_by_id(uintmax_t); 199*0Sstevel@tonic-gate extern dt_node_t *dt_node_clause(dt_node_t *, dt_node_t *, dt_node_t *); 200*0Sstevel@tonic-gate extern dt_node_t *dt_node_inline(dt_node_t *); 201*0Sstevel@tonic-gate extern dt_node_t *dt_node_member(dt_decl_t *, char *, dt_node_t *); 202*0Sstevel@tonic-gate extern dt_node_t *dt_node_xlator(dt_decl_t *, dt_decl_t *, char *, dt_node_t *); 203*0Sstevel@tonic-gate extern dt_node_t *dt_node_probe(char *, dt_node_t *, dt_node_t *); 204*0Sstevel@tonic-gate extern dt_node_t *dt_node_provider(char *, dt_node_t *); 205*0Sstevel@tonic-gate extern dt_node_t *dt_node_program(dt_node_t *); 206*0Sstevel@tonic-gate 207*0Sstevel@tonic-gate extern dt_node_t *dt_node_link(dt_node_t *, dt_node_t *); 208*0Sstevel@tonic-gate extern dt_node_t *dt_node_cook(dt_node_t *, uint_t); 209*0Sstevel@tonic-gate 210*0Sstevel@tonic-gate extern dt_node_t *dt_node_xalloc(dtrace_hdl_t *, int); 211*0Sstevel@tonic-gate extern void dt_node_free(dt_node_t *); 212*0Sstevel@tonic-gate 213*0Sstevel@tonic-gate extern dtrace_attribute_t dt_node_list_cook(dt_node_t **, uint_t); 214*0Sstevel@tonic-gate extern void dt_node_list_free(dt_node_t **); 215*0Sstevel@tonic-gate extern void dt_node_link_free(dt_node_t **); 216*0Sstevel@tonic-gate 217*0Sstevel@tonic-gate extern void dt_node_attr_assign(dt_node_t *, dtrace_attribute_t); 218*0Sstevel@tonic-gate extern void dt_node_type_assign(dt_node_t *, ctf_file_t *, ctf_id_t); 219*0Sstevel@tonic-gate extern void dt_node_type_propagate(const dt_node_t *, dt_node_t *); 220*0Sstevel@tonic-gate extern const char *dt_node_type_name(const dt_node_t *, char *, size_t); 221*0Sstevel@tonic-gate extern size_t dt_node_type_size(const dt_node_t *); 222*0Sstevel@tonic-gate 223*0Sstevel@tonic-gate extern dt_ident_t *dt_node_resolve(const dt_node_t *, uint_t); 224*0Sstevel@tonic-gate extern size_t dt_node_sizeof(const dt_node_t *); 225*0Sstevel@tonic-gate extern void dt_node_promote(dt_node_t *, dt_node_t *, dt_node_t *); 226*0Sstevel@tonic-gate 227*0Sstevel@tonic-gate extern void dt_node_diftype(const dt_node_t *, dtrace_diftype_t *); 228*0Sstevel@tonic-gate extern void dt_node_printr(dt_node_t *, FILE *, int); 229*0Sstevel@tonic-gate extern const char *dt_node_name(const dt_node_t *, char *, size_t); 230*0Sstevel@tonic-gate extern int dt_node_root(dt_node_t *); 231*0Sstevel@tonic-gate 232*0Sstevel@tonic-gate struct dtrace_typeinfo; /* see <dtrace.h> */ 233*0Sstevel@tonic-gate struct dt_pcb; /* see <dt_impl.h> */ 234*0Sstevel@tonic-gate 235*0Sstevel@tonic-gate #define IS_CHAR(e) \ 236*0Sstevel@tonic-gate (((e).cte_format & (CTF_INT_CHAR | CTF_INT_SIGNED)) == \ 237*0Sstevel@tonic-gate (CTF_INT_CHAR | CTF_INT_SIGNED) && (e).cte_bits == NBBY) 238*0Sstevel@tonic-gate 239*0Sstevel@tonic-gate #define IS_VOID(e) \ 240*0Sstevel@tonic-gate ((e).cte_offset == 0 && (e).cte_bits == 0) 241*0Sstevel@tonic-gate 242*0Sstevel@tonic-gate extern int dt_type_lookup(const char *, struct dtrace_typeinfo *); 243*0Sstevel@tonic-gate extern int dt_type_pointer(struct dtrace_typeinfo *); 244*0Sstevel@tonic-gate extern const char *dt_type_name(ctf_file_t *, ctf_id_t, char *, size_t); 245*0Sstevel@tonic-gate 246*0Sstevel@tonic-gate typedef enum { 247*0Sstevel@tonic-gate YYS_CLAUSE, /* lex/yacc state for finding program clauses */ 248*0Sstevel@tonic-gate YYS_DEFINE, /* lex/yacc state for parsing persistent definitions */ 249*0Sstevel@tonic-gate YYS_EXPR, /* lex/yacc state for parsing D expressions */ 250*0Sstevel@tonic-gate YYS_DONE /* lex/yacc state for indicating parse tree is done */ 251*0Sstevel@tonic-gate } yystate_t; 252*0Sstevel@tonic-gate 253*0Sstevel@tonic-gate extern void dnerror(const dt_node_t *, dt_errtag_t, const char *, ...); 254*0Sstevel@tonic-gate extern void dnwarn(const dt_node_t *, dt_errtag_t, const char *, ...); 255*0Sstevel@tonic-gate 256*0Sstevel@tonic-gate extern void xyerror(dt_errtag_t, const char *, ...); 257*0Sstevel@tonic-gate extern void xywarn(dt_errtag_t, const char *, ...); 258*0Sstevel@tonic-gate extern void xyvwarn(dt_errtag_t, const char *, va_list); 259*0Sstevel@tonic-gate 260*0Sstevel@tonic-gate extern void yyerror(const char *, ...); 261*0Sstevel@tonic-gate extern void yywarn(const char *, ...); 262*0Sstevel@tonic-gate extern void yyvwarn(const char *, va_list); 263*0Sstevel@tonic-gate 264*0Sstevel@tonic-gate extern void yylabel(const char *); 265*0Sstevel@tonic-gate extern void yybegin(yystate_t); 266*0Sstevel@tonic-gate extern void yyinit(struct dt_pcb *); 267*0Sstevel@tonic-gate 268*0Sstevel@tonic-gate extern int yyparse(void); 269*0Sstevel@tonic-gate extern int yyinput(void); 270*0Sstevel@tonic-gate 271*0Sstevel@tonic-gate #ifdef __cplusplus 272*0Sstevel@tonic-gate } 273*0Sstevel@tonic-gate #endif 274*0Sstevel@tonic-gate 275*0Sstevel@tonic-gate #endif /* _DT_PARSER_H */ 276