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/*
* Oracle Linux DTrace.
* Copyright (c) 2005, 2025, Oracle and/or its affiliates. All rights reserved.
* Licensed under the Universal Permissive License v 1.0 as shown at
* http://oss.oracle.com/licenses/upl.
*/
#ifndef _DT_PCB_H
#define _DT_PCB_H
#include <dtrace.h>
#include <setjmp.h>
#include <stdio.h>
#ifdef __cplusplus
extern "C" {
#endif
#include <dt_parser.h>
#include <dt_regset.h>
#include <dt_decl.h>
#include <dt_as.h>
typedef struct dt_pcb {
dtrace_hdl_t *pcb_hdl; /* pointer to library handle */
struct dt_pcb *pcb_prev; /* pointer to previous pcb in stack */
FILE *pcb_fileptr; /* pointer to input file (or NULL) */
char *pcb_filetag; /* optional file name string (or NULL) */
const char *pcb_string; /* pointer to input string (or NULL) */
int pcb_sargc; /* number of script arguments (if any) */
char *const *pcb_sargv; /* script argument strings (if any) */
ushort_t *pcb_sflagv; /* script argument flags (DT_IDFLG_* bits) */
dt_scope_t pcb_dstack; /* declaration processing stack */
dt_node_t *pcb_list; /* list of allocated parse tree nodes */
dt_node_t *pcb_hold; /* parse tree nodes on hold until end of defn */
dt_node_t *pcb_root; /* root of current parse tree */
dt_idstack_t pcb_globals; /* stack of global identifier hash tables */
dt_idhash_t *pcb_locals; /* current hash table of local identifiers */
dt_idhash_t *pcb_idents; /* current hash table of ambiguous idents */
dt_idhash_t *pcb_pragmas; /* current hash table of pending pragmas */
dt_regset_t *pcb_regs; /* register set for code generation */
uint32_t pcb_bufoff; /* output buffer offset (for DFUNCs) */
dt_irlist_t pcb_ir; /* list of unrelocated IR instructions */
uint_t pcb_exitlbl; /* label for exit of program */
uint_t pcb_fastlbl; /* label for fast exit of program */
uint_t pcb_asvidx; /* assembler vartab index (see dt_as.c) */
ulong_t **pcb_asxrefs; /* assembler imported xlators (see dt_as.c) */
uint_t pcb_asxreflen; /* assembler xlator map length (see dt_as.c) */
const dtrace_probedesc_t *pcb_pdesc; /* probedesc for current context */
struct dt_probe *pcb_parent_probe; /* parent of PCB probe */
struct dt_probe *pcb_probe; /* probe associated with current context */
dtrace_probeinfo_t pcb_pinfo; /* info associated with current context */
dtrace_datadesc_t *pcb_ddesc; /* data record description */
int pcb_maxrecs; /* alloc'd number of data record descriptions */
dtrace_attribute_t pcb_amin; /* stability minimum for compilation */
dtrace_difo_t *pcb_difo; /* intermediate DIF object made by assembler */
dtrace_prog_t *pcb_prog; /* intermediate program made by compiler */
dtrace_stmtdesc_t *pcb_stmt; /* intermediate stmt made by compiler */
dtrace_ecbdesc_t *pcb_ecbdesc; /* intermediate ecbdesc made by cmplr */
jmp_buf pcb_jmpbuf; /* setjmp(3C) buffer for error return */
const char *pcb_region; /* optional region name for yyerror() suffix */
dtrace_probespec_t pcb_pspec; /* probe description evaluation context */
uint_t pcb_cflags; /* optional compilation flags (see dtrace.h) */
uint_t pcb_idepth; /* preprocessor #include nesting depth */
yystate_t pcb_yystate; /* lex/yacc parsing state (see yybegin()) */
int pcb_context; /* yyparse() rules context (DT_CTX_* value) */
int pcb_token; /* token to be returned by yylex() (if != 0) */
int pcb_cstate; /* state to be restored by lexer at state end */
int pcb_braces; /* number of open curly braces in lexer */
int pcb_brackets; /* number of open square brackets in lexer */
int pcb_parens; /* number of open parentheses in lexer */
int pcb_sou_type; /* lexer in struct/union type name */
int pcb_sou_deref; /* lexer in struct/union dereference */
int pcb_enum_decl; /* lexer in enum declaration: 2 for inside { }. */
int pcb_xlator_input; /* in translator input type */
int pcb_array_dimens; /* in array dimensions */
int pcb_alloca_taints; /* number of alloca taint changes */
} dt_pcb_t;
extern void dt_pcb_push(dtrace_hdl_t *, dt_pcb_t *);
extern void dt_pcb_pop(dtrace_hdl_t *, int);
#ifdef __cplusplus
}
#endif
#endif /* _DT_PCB_H */
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