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Diffstat (limited to 'lib/libdtrace/common/dt_parser.h')
| -rw-r--r-- | lib/libdtrace/common/dt_parser.h | 285 |
1 files changed, 285 insertions, 0 deletions
diff --git a/lib/libdtrace/common/dt_parser.h b/lib/libdtrace/common/dt_parser.h new file mode 100644 index 000000000000..6064efb2e65a --- /dev/null +++ b/lib/libdtrace/common/dt_parser.h @@ -0,0 +1,285 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License (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 2007 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#ifndef _DT_PARSER_H +#define _DT_PARSER_H + +#pragma ident "%Z%%M% %I% %E% SMI" + +#include <sys/types.h> +#include <sys/dtrace.h> + +#include <libctf.h> +#include <stdarg.h> +#include <stdio.h> + +#ifdef __cplusplus +extern "C" { +#endif + +#include <dt_errtags.h> +#include <dt_ident.h> +#include <dt_decl.h> +#include <dt_xlator.h> +#include <dt_list.h> + +typedef struct dt_node { + ctf_file_t *dn_ctfp; /* CTF type container for node's type */ + ctf_id_t dn_type; /* CTF type reference for node's type */ + uchar_t dn_kind; /* node kind (DT_NODE_*, defined below) */ + uchar_t dn_flags; /* node flags (DT_NF_*, defined below) */ + ushort_t dn_op; /* operator (DT_TOK_*, defined by lex) */ + int dn_line; /* line number for error messages */ + int dn_reg; /* register allocated by cg */ + dtrace_attribute_t dn_attr; /* node stability attributes */ + + /* + * D compiler nodes, as is the usual style, contain a union of the + * different sub-elements required by the various kinds of nodes. + * These sub-elements are accessed using the macros defined below. + */ + union { + struct { + uintmax_t _value; /* integer value */ + char *_string; /* string value */ + } _const; + + struct { + dt_ident_t *_ident; /* identifier reference */ + struct dt_node *_links[3]; /* child node pointers */ + } _nodes; + + struct { + struct dt_node *_descs; /* list of descriptions */ + struct dt_node *_pred; /* predicate expression */ + struct dt_node *_acts; /* action statement list */ + dt_idhash_t *_locals; /* local variable hash */ + dtrace_attribute_t _attr; /* context attributes */ + } _clause; + + struct { + char *_spec; /* specifier string (if any) */ + dtrace_probedesc_t *_desc; /* final probe description */ + } _pdesc; + + struct { + char *_name; /* string name of member */ + struct dt_node *_expr; /* expression node pointer */ + dt_xlator_t *_xlator; /* translator reference */ + uint_t _id; /* member identifier */ + } _member; + + struct { + dt_xlator_t *_xlator; /* translator reference */ + struct dt_node *_xmemb; /* individual xlator member */ + struct dt_node *_membs; /* list of member nodes */ + } _xlator; + + struct { + char *_name; /* string name of provider */ + struct dt_provider *_pvp; /* provider references */ + struct dt_node *_probes; /* list of probe nodes */ + int _redecl; /* provider redeclared */ + } _provider; + } dn_u; + + struct dt_node *dn_list; /* parse tree list link */ + struct dt_node *dn_link; /* allocation list link */ +} dt_node_t; + +#define dn_value dn_u._const._value /* DT_NODE_INT */ +#define dn_string dn_u._const._string /* STRING, IDENT, TYPE */ +#define dn_ident dn_u._nodes._ident /* VAR,SYM,FUN,AGG,INL,PROBE */ +#define dn_args dn_u._nodes._links[0] /* DT_NODE_VAR, FUNC */ +#define dn_child dn_u._nodes._links[0] /* DT_NODE_OP1 */ +#define dn_left dn_u._nodes._links[0] /* DT_NODE_OP2, OP3 */ +#define dn_right dn_u._nodes._links[1] /* DT_NODE_OP2, OP3 */ +#define dn_expr dn_u._nodes._links[2] /* DT_NODE_OP3, DEXPR */ +#define dn_aggfun dn_u._nodes._links[0] /* DT_NODE_AGG */ +#define dn_aggtup dn_u._nodes._links[1] /* DT_NODE_AGG */ +#define dn_pdescs dn_u._clause._descs /* DT_NODE_CLAUSE */ +#define dn_pred dn_u._clause._pred /* DT_NODE_CLAUSE */ +#define dn_acts dn_u._clause._acts /* DT_NODE_CLAUSE */ +#define dn_locals dn_u._clause._locals /* DT_NODE_CLAUSE */ +#define dn_ctxattr dn_u._clause._attr /* DT_NODE_CLAUSE */ +#define dn_spec dn_u._pdesc._spec /* DT_NODE_PDESC */ +#define dn_desc dn_u._pdesc._desc /* DT_NODE_PDESC */ +#define dn_membname dn_u._member._name /* DT_NODE_MEMBER */ +#define dn_membexpr dn_u._member._expr /* DT_NODE_MEMBER */ +#define dn_membxlator dn_u._member._xlator /* DT_NODE_MEMBER */ +#define dn_membid dn_u._member._id /* DT_NODE_MEMBER */ +#define dn_xlator dn_u._xlator._xlator /* DT_NODE_XLATOR */ +#define dn_xmember dn_u._xlator._xmemb /* DT_NODE_XLATOR */ +#define dn_members dn_u._xlator._membs /* DT_NODE_XLATOR */ +#define dn_provname dn_u._provider._name /* DT_NODE_PROVIDER */ +#define dn_provider dn_u._provider._pvp /* DT_NODE_PROVIDER */ +#define dn_provred dn_u._provider._redecl /* DT_NODE_PROVIDER */ +#define dn_probes dn_u._provider._probes /* DT_NODE_PROVIDER */ + +#define DT_NODE_FREE 0 /* unused node (waiting to be freed) */ +#define DT_NODE_INT 1 /* integer value */ +#define DT_NODE_STRING 2 /* string value */ +#define DT_NODE_IDENT 3 /* identifier */ +#define DT_NODE_VAR 4 /* variable reference */ +#define DT_NODE_SYM 5 /* symbol reference */ +#define DT_NODE_TYPE 6 /* type reference or formal parameter */ +#define DT_NODE_FUNC 7 /* function call */ +#define DT_NODE_OP1 8 /* unary operator */ +#define DT_NODE_OP2 9 /* binary operator */ +#define DT_NODE_OP3 10 /* ternary operator */ +#define DT_NODE_DEXPR 11 /* D expression action */ +#define DT_NODE_DFUNC 12 /* D function action */ +#define DT_NODE_AGG 13 /* aggregation */ +#define DT_NODE_PDESC 14 /* probe description */ +#define DT_NODE_CLAUSE 15 /* clause definition */ +#define DT_NODE_INLINE 16 /* inline definition */ +#define DT_NODE_MEMBER 17 /* member definition */ +#define DT_NODE_XLATOR 18 /* translator definition */ +#define DT_NODE_PROBE 19 /* probe definition */ +#define DT_NODE_PROVIDER 20 /* provider definition */ +#define DT_NODE_PROG 21 /* program translation unit */ + +#define DT_NF_SIGNED 0x01 /* data is a signed quantity (else unsigned) */ +#define DT_NF_COOKED 0x02 /* data is a known type (else still cooking) */ +#define DT_NF_REF 0x04 /* pass by reference (array, struct, union) */ +#define DT_NF_LVALUE 0x08 /* node is an l-value according to ANSI-C */ +#define DT_NF_WRITABLE 0x10 /* node is writable (can be modified) */ +#define DT_NF_BITFIELD 0x20 /* node is an integer bitfield */ +#define DT_NF_USERLAND 0x40 /* data is a userland address */ + +#define DT_TYPE_NAMELEN 128 /* reasonable size for ctf_type_name() */ + +extern int dt_node_is_integer(const dt_node_t *); +extern int dt_node_is_float(const dt_node_t *); +extern int dt_node_is_scalar(const dt_node_t *); +extern int dt_node_is_arith(const dt_node_t *); +extern int dt_node_is_vfptr(const dt_node_t *); +extern int dt_node_is_dynamic(const dt_node_t *); +extern int dt_node_is_stack(const dt_node_t *); +extern int dt_node_is_symaddr(const dt_node_t *); +extern int dt_node_is_usymaddr(const dt_node_t *); +extern int dt_node_is_string(const dt_node_t *); +extern int dt_node_is_strcompat(const dt_node_t *); +extern int dt_node_is_pointer(const dt_node_t *); +extern int dt_node_is_void(const dt_node_t *); +extern int dt_node_is_ptrcompat(const dt_node_t *, const dt_node_t *, + ctf_file_t **, ctf_id_t *); +extern int dt_node_is_argcompat(const dt_node_t *, const dt_node_t *); +extern int dt_node_is_posconst(const dt_node_t *); +extern int dt_node_is_actfunc(const dt_node_t *); + +extern dt_node_t *dt_node_int(uintmax_t); +extern dt_node_t *dt_node_string(char *); +extern dt_node_t *dt_node_ident(char *); +extern dt_node_t *dt_node_type(dt_decl_t *); +extern dt_node_t *dt_node_vatype(void); +extern dt_node_t *dt_node_decl(void); +extern dt_node_t *dt_node_func(dt_node_t *, dt_node_t *); +extern dt_node_t *dt_node_offsetof(dt_decl_t *, char *); +extern dt_node_t *dt_node_op1(int, dt_node_t *); +extern dt_node_t *dt_node_op2(int, dt_node_t *, dt_node_t *); +extern dt_node_t *dt_node_op3(dt_node_t *, dt_node_t *, dt_node_t *); +extern dt_node_t *dt_node_statement(dt_node_t *); +extern dt_node_t *dt_node_pdesc_by_name(char *); +extern dt_node_t *dt_node_pdesc_by_id(uintmax_t); +extern dt_node_t *dt_node_clause(dt_node_t *, dt_node_t *, dt_node_t *); +extern dt_node_t *dt_node_inline(dt_node_t *); +extern dt_node_t *dt_node_member(dt_decl_t *, char *, dt_node_t *); +extern dt_node_t *dt_node_xlator(dt_decl_t *, dt_decl_t *, char *, dt_node_t *); +extern dt_node_t *dt_node_probe(char *, int, dt_node_t *, dt_node_t *); +extern dt_node_t *dt_node_provider(char *, dt_node_t *); +extern dt_node_t *dt_node_program(dt_node_t *); + +extern dt_node_t *dt_node_link(dt_node_t *, dt_node_t *); +extern dt_node_t *dt_node_cook(dt_node_t *, uint_t); + +extern dt_node_t *dt_node_xalloc(dtrace_hdl_t *, int); +extern void dt_node_free(dt_node_t *); + +extern dtrace_attribute_t dt_node_list_cook(dt_node_t **, uint_t); +extern void dt_node_list_free(dt_node_t **); +extern void dt_node_link_free(dt_node_t **); + +extern void dt_node_attr_assign(dt_node_t *, dtrace_attribute_t); +extern void dt_node_type_assign(dt_node_t *, ctf_file_t *, ctf_id_t); +extern void dt_node_type_propagate(const dt_node_t *, dt_node_t *); +extern const char *dt_node_type_name(const dt_node_t *, char *, size_t); +extern size_t dt_node_type_size(const dt_node_t *); + +extern dt_ident_t *dt_node_resolve(const dt_node_t *, uint_t); +extern size_t dt_node_sizeof(const dt_node_t *); +extern void dt_node_promote(dt_node_t *, dt_node_t *, dt_node_t *); + +extern void dt_node_diftype(dtrace_hdl_t *, + const dt_node_t *, dtrace_diftype_t *); +extern void dt_node_printr(dt_node_t *, FILE *, int); +extern const char *dt_node_name(const dt_node_t *, char *, size_t); +extern int dt_node_root(dt_node_t *); + +struct dtrace_typeinfo; /* see <dtrace.h> */ +struct dt_pcb; /* see <dt_impl.h> */ + +#define IS_CHAR(e) \ + (((e).cte_format & (CTF_INT_CHAR | CTF_INT_SIGNED)) == \ + (CTF_INT_CHAR | CTF_INT_SIGNED) && (e).cte_bits == NBBY) + +#define IS_VOID(e) \ + ((e).cte_offset == 0 && (e).cte_bits == 0) + +extern int dt_type_lookup(const char *, struct dtrace_typeinfo *); +extern int dt_type_pointer(struct dtrace_typeinfo *); +extern const char *dt_type_name(ctf_file_t *, ctf_id_t, char *, size_t); + +typedef enum { + YYS_CLAUSE, /* lex/yacc state for finding program clauses */ + YYS_DEFINE, /* lex/yacc state for parsing persistent definitions */ + YYS_EXPR, /* lex/yacc state for parsing D expressions */ + YYS_DONE, /* lex/yacc state for indicating parse tree is done */ + YYS_CONTROL /* lex/yacc state for parsing control lines */ +} yystate_t; + +extern void dnerror(const dt_node_t *, dt_errtag_t, const char *, ...); +extern void dnwarn(const dt_node_t *, dt_errtag_t, const char *, ...); + +extern void xyerror(dt_errtag_t, const char *, ...); +extern void xywarn(dt_errtag_t, const char *, ...); +extern void xyvwarn(dt_errtag_t, const char *, va_list); + +extern void yyerror(const char *, ...); +extern void yywarn(const char *, ...); +extern void yyvwarn(const char *, va_list); + +extern void yylabel(const char *); +extern void yybegin(yystate_t); +extern void yyinit(struct dt_pcb *); + +extern int yyparse(void); +extern int yyinput(void); + +#ifdef __cplusplus +} +#endif + +#endif /* _DT_PARSER_H */ |