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 #include <dtrace.h> 31 #include <setjmp.h> 32 #include <stdio.h> 33 34 #ifdef __cplusplus 35 extern "C" { 36 #endif 37 38 #include <dt_parser.h> 39 #include <dt_regset.h> 40 #include <dt_inttab.h> 41 #include <dt_strtab.h> 42 #include <dt_decl.h> 43 #include <dt_as.h> 44 45 typedef struct dt_pcb { 46 dtrace_hdl_t *pcb_hdl; /* pointer to library handle */ 47 struct dt_pcb *pcb_prev; /* pointer to previous pcb in stack */ 48 FILE *pcb_fileptr; /* pointer to input file (or NULL) */ 49 char *pcb_filetag; /* optional file name string (or NULL) */ 50 const char *pcb_string; /* pointer to input string (or NULL) */ 51 const char *pcb_strptr; /* pointer to input position */ 52 size_t pcb_strlen; /* length of pcb_string */ 53 int pcb_sargc; /* number of script arguments (if any) */ 54 char *const *pcb_sargv; /* script argument strings (if any) */ 55 ushort_t *pcb_sflagv; /* script argument flags (DT_IDFLG_* bits) */ 56 dt_scope_t pcb_dstack; /* declaration processing stack */ 57 dt_node_t *pcb_list; /* list of allocated parse tree nodes */ 58 dt_node_t *pcb_hold; /* parse tree nodes on hold until end of defn */ 59 dt_node_t *pcb_root; /* root of current parse tree */ 60 dt_idstack_t pcb_globals; /* stack of global identifier hash tables */ 61 dt_idhash_t *pcb_locals; /* current hash table of local identifiers */ 62 dt_idhash_t *pcb_idents; /* current hash table of ambiguous idents */ 63 dt_idhash_t *pcb_pragmas; /* current hash table of pending pragmas */ 64 dt_inttab_t *pcb_inttab; /* integer table for constant references */ 65 dt_strtab_t *pcb_strtab; /* string table for string references */ 66 dt_regset_t *pcb_regs; /* register set for code generation */ 67 dt_irlist_t pcb_ir; /* list of unrelocated IR instructions */ 68 uint_t pcb_asvidx; /* assembler vartab index (see dt_as.c) */ 69 ulong_t **pcb_asxrefs; /* assembler imported xlators (see dt_as.c) */ 70 uint_t pcb_asxreflen; /* assembler xlator map length (see dt_as.c) */ 71 const dtrace_probedesc_t *pcb_pdesc; /* probedesc for current context */ 72 struct dt_probe *pcb_probe; /* probe associated with current context */ 73 dtrace_probeinfo_t pcb_pinfo; /* info associated with current context */ 74 dtrace_attribute_t pcb_amin; /* stability minimum for compilation */ 75 dt_node_t *pcb_dret; /* node containing return type for assembler */ 76 dtrace_difo_t *pcb_difo; /* intermediate DIF object made by assembler */ 77 dtrace_prog_t *pcb_prog; /* intermediate program made by compiler */ 78 dtrace_stmtdesc_t *pcb_stmt; /* intermediate stmt made by compiler */ 79 dtrace_ecbdesc_t *pcb_ecbdesc; /* intermediate ecbdesc made by cmplr */ 80 jmp_buf pcb_jmpbuf; /* setjmp(3C) buffer for error return */ 81 const char *pcb_region; /* optional region name for yyerror() suffix */ 82 dtrace_probespec_t pcb_pspec; /* probe description evaluation context */ 83 uint_t pcb_cflags; /* optional compilation flags (see dtrace.h) */ 84 uint_t pcb_idepth; /* preprocessor #include nesting depth */ 85 yystate_t pcb_yystate; /* lex/yacc parsing state (see yybegin()) */ 86 int pcb_context; /* yyparse() rules context (DT_CTX_* value) */ 87 int pcb_token; /* token to be returned by yylex() (if != 0) */ 88 int pcb_cstate; /* state to be restored by lexer at state end */ 89 int pcb_braces; /* number of open curly braces in lexer */ 90 int pcb_brackets; /* number of open square brackets in lexer */ 91 int pcb_parens; /* number of open parentheses in lexer */ 92 } dt_pcb_t; 93 94 extern void dt_pcb_push(dtrace_hdl_t *, dt_pcb_t *); 95 extern void dt_pcb_pop(dtrace_hdl_t *, int); 96 97 #ifdef __cplusplus 98 } 99 #endif 100 101 #endif /* _DT_PCB_H */ 102