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 */ 104