usr/src/lib/libdtrace/common/dt_pcb.h

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*
  23  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 #ifndef _DT_PCB_H
  28 #define _DT_PCB_H
  29
  30 #pragma ident   "%Z%%M% %I%     %E% SMI"
  31
  32 #include <dtrace.h>
  33 #include <setjmp.h>
  34 #include <stdio.h>
  35
  36 #ifdef  __cplusplus
  37 extern "C" {
  38 #endif
  39
  40 #include <dt_parser.h>
  41 #include <dt_regset.h>
  42 #include <dt_inttab.h>
  43 #include <dt_strtab.h>
  44 #include <dt_decl.h>
  45 #include <dt_as.h>
  46
  47 typedef struct dt_pcb {
  48         dtrace_hdl_t *pcb_hdl;  /* pointer to library handle */
  49         struct dt_pcb *pcb_prev; /* pointer to previous pcb in stack */
  50         FILE *pcb_fileptr;      /* pointer to input file (or NULL) */
  51         char *pcb_filetag;      /* optional file name string (or NULL) */
  52         const char *pcb_string; /* pointer to input string (or NULL) */
  53         const char *pcb_strptr; /* pointer to input position */
  54         size_t pcb_strlen;      /* length of pcb_string */
  55         int pcb_sargc;          /* number of script arguments (if any) */
  56         char *const *pcb_sargv; /* script argument strings (if any) */
  57         ushort_t *pcb_sflagv;   /* script argument flags (DT_IDFLG_* bits) */
  58         dt_scope_t pcb_dstack;  /* declaration processing stack */
  59         dt_node_t *pcb_list;    /* list of allocated parse tree nodes */
  60         dt_node_t *pcb_hold;    /* parse tree nodes on hold until end of defn */
  61         dt_node_t *pcb_root;    /* root of current parse tree */
  62         dt_idstack_t pcb_globals; /* stack of global identifier hash tables */
  63         dt_idhash_t *pcb_locals; /* current hash table of local identifiers */
  64         dt_idhash_t *pcb_idents; /* current hash table of ambiguous idents */
  65         dt_idhash_t *pcb_pragmas; /* current hash table of pending pragmas */
  66         dt_inttab_t *pcb_inttab; /* integer table for constant references */
  67         dt_strtab_t *pcb_strtab; /* string table for string references */
  68         dt_regset_t *pcb_regs;  /* register set for code generation */
  69         dt_irlist_t pcb_ir;     /* list of unrelocated IR instructions */
  70         uint_t pcb_asvidx;      /* assembler vartab index (see dt_as.c) */
  71         ulong_t **pcb_asxrefs;  /* assembler imported xlators (see dt_as.c) */
  72         uint_t pcb_asxreflen;   /* assembler xlator map length (see dt_as.c) */
  73         const dtrace_probedesc_t *pcb_pdesc; /* probedesc for current context */
  74         struct dt_probe *pcb_probe; /* probe associated with current context */
  75         dtrace_probeinfo_t pcb_pinfo; /* info associated with current context */
  76         dtrace_attribute_t pcb_amin; /* stability minimum for compilation */
  77         dt_node_t *pcb_dret;    /* node containing return type for assembler */
  78         dtrace_difo_t *pcb_difo; /* intermediate DIF object made by assembler */
  79         dtrace_prog_t *pcb_prog; /* intermediate program made by compiler */
  80         dtrace_stmtdesc_t *pcb_stmt; /* intermediate stmt made by compiler */
  81         dtrace_ecbdesc_t *pcb_ecbdesc; /* intermediate ecbdesc made by cmplr */
  82         jmp_buf pcb_jmpbuf;     /* setjmp(3C) buffer for error return */
  83         const char *pcb_region; /* optional region name for yyerror() suffix */
  84         dtrace_probespec_t pcb_pspec; /* probe description evaluation context */
  85         uint_t pcb_cflags;      /* optional compilation flags (see dtrace.h) */
  86         uint_t pcb_idepth;      /* preprocessor #include nesting depth */
  87         yystate_t pcb_yystate;  /* lex/yacc parsing state (see yybegin()) */
  88         int pcb_context;        /* yyparse() rules context (DT_CTX_* value) */
  89         int pcb_token;          /* token to be returned by yylex() (if != 0) */
  90         int pcb_cstate;         /* state to be restored by lexer at state end */
  91         int pcb_braces;         /* number of open curly braces in lexer */
  92         int pcb_brackets;       /* number of open square brackets in lexer */
  93         int pcb_parens;         /* number of open parentheses in lexer */
  94 } dt_pcb_t;
  95
  96 extern void dt_pcb_push(dtrace_hdl_t *, dt_pcb_t *);
  97 extern void dt_pcb_pop(dtrace_hdl_t *, int);
  98
  99 #ifdef  __cplusplus
 100 }
 101 #endif
 102
 103 #endif  /* _DT_PCB_H */