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freebsd-dev/cddl/contrib/opensolaris/lib/libdtrace/common/dt_parser.h
Rui Paulo 8e648814b0 MFV illumos 
4474 DTrace Userland CTF Support
4475 DTrace userland Keyword
4476 DTrace tests should be better citizens
4479 pid provider types
4480 dof emulation is missing checks

MFC after:	2 weeks
2014-06-26 23:21:11 +00:00

288 lines
11 KiB
C
Raw Blame History

/*
* 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.
*/
/*
* Copyright (c) 2013 by Delphix. All rights reserved.
* Copyright (c) 2013 Joyent, Inc. All rights reserved.
*/
#ifndef _DT_PARSER_H
#define _DT_PARSER_H
#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, boolean_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 */
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