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/* * Copyright (c) 2003, 2021, Oracle and/or its affiliates. */ #ifndef _DTRACE_H #define _DTRACE_H #include <sys/dtrace.h> #include <stdarg.h> #include <stdio.h> #include <gelf.h> #ifdef __cplusplus extern "C" { #endif /* * DTrace Dynamic Tracing Software: Library Interfaces */ #define DTRACE_VERSION 3 /* library ABI interface version */ #define EDT_BASE 1000 /* base value for libdtrace errnos */ enum { EDT_VERSION = EDT_BASE, /* client is requesting unsupported version */ EDT_VERSINVAL, /* version string is invalid or overflows */ EDT_VERSUNDEF, /* requested API version is not defined */ EDT_VERSREDUCED, /* requested API version has been reduced */ EDT_CTF, /* libctf called failed (dt_ctferr has more) */ EDT_COMPILER, /* error in D program compilation */ EDT_NOREG, /* register allocation failure */ EDT_NOTUPREG, /* tuple register allocation failure */ EDT_NOMEM, /* memory allocation failure */ EDT_INT2BIG, /* integer limit exceeded */ EDT_STR2BIG, /* string limit exceeded */ EDT_NOMOD, /* unknown module name */ EDT_NOPROV, /* unknown provider name */ EDT_NOPROBE, /* unknown probe name */ EDT_NOSYM, /* unknown symbol name */ EDT_NOSYMADDR, /* no symbol corresponds to address */ EDT_NOTYPE, /* unknown type name */ EDT_NOVAR, /* unknown variable name */ EDT_NOAGG, /* unknown aggregation name */ EDT_BADSCOPE, /* improper use of type name scoping operator */ EDT_BADSPEC, /* overspecified probe description */ EDT_BADSPCV, /* bad macro variable in probe description */ EDT_BADID, /* invalid probe identifier */ EDT_NOTLOADED, /* module is not currently loaded */ EDT_NOCTF, /* module does not contain any CTF data */ EDT_DATAMODEL, /* module and program data models don't match */ EDT_DIFVERS, /* library has newer DIF version than driver */ EDT_BADAGG, /* unrecognized aggregating action */ EDT_FIO, /* file i/o error */ EDT_DIFINVAL, /* invalid DIF program */ EDT_DIFSIZE, /* invalid DIF size */ EDT_DIFFAULT, /* failed to copyin DIF program */ EDT_BADPROBE, /* bad probe description */ EDT_BADPGLOB, /* bad probe description globbing pattern */ EDT_NOSCOPE, /* declaration scope stack underflow */ EDT_NODECL, /* declaration stack underflow */ EDT_DMISMATCH, /* record list does not match statement */ EDT_DOFFSET, /* record data offset error */ EDT_DALIGN, /* record data alignment error */ EDT_BADOPTNAME, /* invalid dtrace_setopt option name */ EDT_BADOPTVAL, /* invalid dtrace_setopt option value */ EDT_BADOPTCTX, /* invalid dtrace_setopt option context */ EDT_CPPFORK, /* failed to fork preprocessor */ EDT_CPPEXEC, /* failed to exec preprocessor */ EDT_CPPENT, /* preprocessor not found */ EDT_CPPERR, /* unknown preprocessor error */ EDT_SYMOFLOW, /* external symbol table overflow */ EDT_ACTIVE, /* operation illegal when tracing is active */ EDT_DESTRUCTIVE, /* destructive actions not allowed */ EDT_NOANON, /* no anonymous tracing state */ EDT_ISANON, /* can't claim anon state and enable probes */ EDT_ENDTOOBIG, /* END enablings exceed size of prncpl buffer */ EDT_NOCONV, /* failed to load type for printf conversion */ EDT_BADCONV, /* incomplete printf conversion */ EDT_BADERROR, /* invalid library ERROR action */ EDT_ERRABORT, /* abort due to error */ EDT_DROPABORT, /* abort due to drop */ EDT_DIRABORT, /* abort explicitly directed */ EDT_BADRVAL, /* invalid return value from callback */ EDT_BADNORMAL, /* invalid normalization */ EDT_BUFTOOSMALL, /* enabling exceeds size of buffer */ EDT_BADTRUNC, /* invalid truncation */ EDT_BUSY, /* device busy (active kernel debugger) */ EDT_ACCESS, /* insufficient privileges to use DTrace */ EDT_NOENT, /* dtrace device not available */ EDT_BRICKED, /* abort due to systemic unresponsiveness */ EDT_HARDWIRE, /* failed to load hard-wired definitions */ EDT_ELFVERSION, /* libelf is out-of-date w.r.t libdtrace */ EDT_NOBUFFERED, /* attempt to buffer output without handler */ EDT_UNSTABLE, /* description matched unstable set of probes */ EDT_BADSETOPT, /* invalid setopt library action */ EDT_BADSTACKPC, /* invalid stack program counter size */ EDT_BADAGGVAR, /* invalid aggregation variable identifier */ EDT_OVERSION, /* client is requesting deprecated version */ EDT_ENABLING_ERR, /* failed to enable probe */ EDT_EI_NOENT, /* dtrace_ei device not available */ EDT_EI_BUSY, /* dtrace_ei device busy */ EDT_EI_ACCESS, /* insufficient privileges to use dtrace-ei */ EDT_NOPCACHE, /* persistent CTF cache absent */ EDT_UNCLAIMED_PRINTAUX, /* auxiliary print presented for consumption */ EDT_MISSING_PRINTAUX, /* auxiliary print missing */ EDT_TRACEMEM, /* missing or corrupt tracemem() record */ EDT_MTFAIL, /* multi-threading failure */ EDT_MTERRFULL, /* overflow of multi-threading error */ EDT_NOTACTIVE, /* operation illegal when tracing not active */ EDT_TYPE, /* backend type error */ EDT_ANON, /* error in setting up anonymous tracing */ EDT_ANON_CLEAN, /* error in cleaning up anonymous tracing */ EDT_PCAP /* missing or corrupt pcap() record */ }; struct ps_prochandle; typedef struct dtrace_hdl dtrace_hdl_t; typedef struct dtrace_prog dtrace_prog_t; typedef struct dtrace_vector dtrace_vector_t; typedef struct dtrace_aggdata dtrace_aggdata_t; #define DTRACE_O_NODEV 0x01 /* do not open dtrace(4D) device */ #define DTRACE_O_NOSYS 0x02 /* do not load /system/object modules */ #define DTRACE_O_LP64 0x04 /* force D compiler to be LP64 */ #define DTRACE_O_ILP32 0x08 /* force D compiler to be ILP32 */ #define DTRACE_O_MASK 0x0f /* mask of valid flags to dtrace_open */ extern dtrace_hdl_t *dtrace_open(int, int, int *); extern dtrace_hdl_t *dtrace_vopen(int, int, int *, const dtrace_vector_t *, void *); extern int dtrace_go(dtrace_hdl_t *); extern int dtrace_stop(dtrace_hdl_t *); extern void dtrace_sleep(dtrace_hdl_t *); extern void dtrace_close(dtrace_hdl_t *); extern int dtrace_fire_extern(dtrace_hdl_t *, uint64_t, uint64_t, uint64_t); extern int dtrace_errno(dtrace_hdl_t *); extern const char *dtrace_errmsg(dtrace_hdl_t *, int); extern const char *dtrace_faultstr(dtrace_hdl_t *, int); extern const char *dtrace_subrstr(dtrace_hdl_t *, int); extern int dtrace_setopt(dtrace_hdl_t *, const char *, const char *); extern int dtrace_getopt(dtrace_hdl_t *, const char *, dtrace_optval_t *); extern void dtrace_update(dtrace_hdl_t *); extern int dtrace_ctlfd(dtrace_hdl_t *); /* * DTrace Program Interface * * DTrace programs can be created by compiling ASCII text files containing * D programs or by compiling in-memory C strings that specify a D program. * Once created, callers can examine the list of program statements and * enable the probes and actions described by these statements. */ typedef struct dtrace_proginfo { dtrace_attribute_t dpi_descattr; /* minimum probedesc attributes */ dtrace_attribute_t dpi_stmtattr; /* minimum statement attributes */ uint_t dpi_aggregates; /* number of aggregates specified in program */ uint_t dpi_recgens; /* number of record generating probes in prog */ uint_t dpi_matches; /* number of probes matched by program */ uint_t dpi_speculations; /* number of speculations specified in prog */ } dtrace_proginfo_t; #define DTRACE_C_DIFV 0x0001 /* DIF verbose mode: show each compiled DIFO */ #define DTRACE_C_EMPTY 0x0002 /* Permit compilation of empty D source files */ #define DTRACE_C_ZDEFS 0x0004 /* Permit probe defs that match zero probes */ #define DTRACE_C_EATTR 0x0008 /* Error if program attributes less than min */ #define DTRACE_C_CPP 0x0010 /* Preprocess input file with cpp(1) utility */ #define DTRACE_C_KNODEF 0x0020 /* Permit unresolved kernel symbols in DIFO */ #define DTRACE_C_UNODEF 0x0040 /* Permit unresolved user symbols in DIFO */ #define DTRACE_C_PSPEC 0x0080 /* Intepret ambiguous specifiers as probes */ #define DTRACE_C_ETAGS 0x0100 /* Prefix error messages with error tags */ #define DTRACE_C_ARGREF 0x0200 /* Do not require all macro args to be used */ #define DTRACE_C_DEFARG 0x0800 /* Use 0/"" as value for unspecified args */ #define DTRACE_C_NOLIBS 0x1000 /* Do not process D system libraries */ #define DTRACE_C_CTL 0x2000 /* Only process control directives */ #define DTRACE_C_MASK 0x3bff /* mask of all valid flags to dtrace_*compile */ extern dtrace_prog_t *dtrace_program_strcompile(dtrace_hdl_t *, const char *, dtrace_probespec_t, uint_t, int, char *const []); extern dtrace_prog_t *dtrace_program_fcompile(dtrace_hdl_t *, FILE *, uint_t, int, char *const []); extern int dtrace_program_exec(dtrace_hdl_t *, dtrace_prog_t *, dtrace_proginfo_t *); extern void dtrace_program_info(dtrace_hdl_t *, dtrace_prog_t *, dtrace_proginfo_t *); #define DTRACE_D_STRIP 0x01 /* strip non-loadable sections from program */ #define DTRACE_D_PROBES 0x02 /* include provider and probe definitions */ #define DTRACE_D_MASK 0x03 /* mask of valid flags to dtrace_dof_create */ extern int dtrace_program_link(dtrace_hdl_t *, dtrace_prog_t *, uint_t, const char *, int, char *const []); extern int dtrace_program_header(dtrace_hdl_t *, FILE *, const char *); extern void *dtrace_dof_create(dtrace_hdl_t *, dtrace_prog_t *, uint_t); extern void dtrace_dof_destroy(dtrace_hdl_t *, void *); extern int dtrace_start_anon(dtrace_hdl_t *); extern int dtrace_add_anon(dtrace_hdl_t *, dtrace_prog_t *); extern int dtrace_finish_anon(dtrace_hdl_t *); extern int dtrace_clean_anon(dtrace_hdl_t *); typedef struct dtrace_stmtdesc { dtrace_ecbdesc_t *dtsd_ecbdesc; /* ECB description */ dtrace_actdesc_t *dtsd_action; /* action list */ dtrace_actdesc_t *dtsd_action_last; /* last action in action list */ void *dtsd_aggdata; /* aggregation data */ void *dtsd_fmtdata; /* type-specific output data */ void (*dtsd_callback)(); /* callback function for EPID */ void *dtsd_data; /* callback data pointer */ dtrace_attribute_t dtsd_descattr; /* probedesc attributes */ dtrace_attribute_t dtsd_stmtattr; /* statement attributes */ } dtrace_stmtdesc_t; typedef int dtrace_stmt_f(dtrace_hdl_t *, dtrace_prog_t *, dtrace_stmtdesc_t *, void *); extern int dtrace_stmt_iter(dtrace_hdl_t *, dtrace_prog_t *, dtrace_stmt_f *, void *); /* * DTrace Data Consumption Interface */ typedef enum { DTRACEFLOW_ENTRY, DTRACEFLOW_RETURN, DTRACEFLOW_NONE } dtrace_flowkind_t; #define DTRACE_CONSUME_ERROR -1 /* error while processing */ #define DTRACE_CONSUME_THIS 0 /* consume this probe/record */ #define DTRACE_CONSUME_NEXT 1 /* advance to next probe/rec */ #define DTRACE_CONSUME_ABORT 2 /* abort consumption */ typedef struct dtrace_probedata { dtrace_hdl_t *dtpda_handle; /* handle to DTrace library */ dtrace_eprobedesc_t *dtpda_edesc; /* enabled probe description */ dtrace_probedesc_t *dtpda_pdesc; /* probe description */ processorid_t dtpda_cpu; /* CPU for data */ caddr_t dtpda_data; /* pointer to raw data */ dtrace_flowkind_t dtpda_flow; /* flow kind */ const char *dtpda_prefix; /* recommended flow prefix */ int dtpda_indent; /* recommended flow indent */ } dtrace_probedata_t; typedef int dtrace_consume_probe_f(const dtrace_probedata_t *, void *); typedef int dtrace_consume_rec_f(const dtrace_probedata_t *, const dtrace_recdesc_t *, void *); extern int dtrace_consume(dtrace_hdl_t *, FILE *, dtrace_consume_probe_f *, dtrace_consume_rec_f *, void *); #define DTRACE_STATUS_NONE 0 /* no status; not yet time */ #define DTRACE_STATUS_OKAY 1 /* status okay */ #define DTRACE_STATUS_EXITED 2 /* exit() was called; tracing stopped */ #define DTRACE_STATUS_FILLED 3 /* fill buffer filled; tracing stoped */ #define DTRACE_STATUS_STOPPED 4 /* tracing already stopped */ extern int dtrace_status(dtrace_hdl_t *); /* * DTrace returns the results of a single tracemem() invocation in either one or * two consecutive DTRACEACT_TRACEMEM records. The first contains the buffer * itself; the second, if present, contains the value of a dynamic size * specified by the user. The records may be differentiated by their arguments, * which take the following possible values: */ #define DTRACE_TRACEMEM_STATIC 1 /* buffer; no dynamic size */ #define DTRACE_TRACEMEM_DYNAMIC 2 /* buffer; dynamic size follows */ #define DTRACE_TRACEMEM_SIZE 3 /* dynamic size (unsigned) */ #define DTRACE_TRACEMEM_SSIZE 4 /* dynamic size (signed) */ /* * DTrace Formatted Output Interfaces * * To format output associated with a given dtrace_stmtdesc, the caller can * invoke one of the following functions, passing the opaque dtsd_fmtdata and a * list of record descriptions. These functions return either -1 to indicate * an error, or a positive integer indicating the number of records consumed. * For anonymous enablings, the consumer can use the dtrd_format member of * the record description to obtain a format description. The dtfd_string * member of the format description may be passed to dtrace_print{fa}_create() * to create the opaque format data. */ extern void *dtrace_printf_create(dtrace_hdl_t *, const char *); extern void *dtrace_printa_create(dtrace_hdl_t *, const char *); extern size_t dtrace_printf_format(dtrace_hdl_t *, void *, char *, size_t); extern void *dtrace_format_lookup(dtrace_hdl_t *, int); extern int dtrace_fprintf(dtrace_hdl_t *, FILE *, void *, const dtrace_probedata_t *, const dtrace_recdesc_t *, uint_t, const void *, size_t); extern int dtrace_fprinta(dtrace_hdl_t *, FILE *, void *, const dtrace_probedata_t *, const dtrace_recdesc_t *, uint_t, const void *, size_t); extern int dtrace_system(dtrace_hdl_t *, FILE *, void *, const dtrace_probedata_t *, const dtrace_recdesc_t *, uint_t, const void *, size_t); extern int dtrace_freopen(dtrace_hdl_t *, FILE *, void *, const dtrace_probedata_t *, const dtrace_recdesc_t *, uint_t, const void *, size_t); /* * DTrace Work Interface */ typedef enum { DTRACE_WORKSTATUS_ERROR = -1, DTRACE_WORKSTATUS_OKAY, DTRACE_WORKSTATUS_DONE } dtrace_workstatus_t; extern dtrace_workstatus_t dtrace_work(dtrace_hdl_t *, FILE *, dtrace_consume_probe_f *, dtrace_consume_rec_f *, void *); /* * DTrace Handler Interface */ #define DTRACE_HANDLE_ABORT -1 /* abort current operation */ #define DTRACE_HANDLE_OK 0 /* handled okay; continue */ typedef struct dtrace_errdata { dtrace_hdl_t *dteda_handle; /* handle to DTrace library */ dtrace_eprobedesc_t *dteda_edesc; /* enabled probe inducing err */ dtrace_probedesc_t *dteda_pdesc; /* probe inducing error */ processorid_t dteda_cpu; /* CPU of error */ int dteda_action; /* action inducing error */ int dteda_offset; /* offset in DIFO of error */ int dteda_fault; /* specific fault */ uint64_t dteda_addr; /* address of fault, if any */ const char *dteda_msg; /* preconstructed message */ } dtrace_errdata_t; typedef int dtrace_handle_err_f(const dtrace_errdata_t *, void *); extern int dtrace_handle_err(dtrace_hdl_t *, dtrace_handle_err_f *, void *); typedef enum { DTRACEDROP_PRINCIPAL, /* drop to principal buffer */ DTRACEDROP_AGGREGATION, /* drop to aggregation buffer */ DTRACEDROP_DYNAMIC, /* dynamic drop */ DTRACEDROP_DYNRINSE, /* dyn drop due to rinsing */ DTRACEDROP_DYNDIRTY, /* dyn drop due to dirty */ DTRACEDROP_SPEC, /* speculative drop */ DTRACEDROP_SPECBUSY, /* spec drop due to busy */ DTRACEDROP_SPECUNAVAIL, /* spec drop due to unavail */ DTRACEDROP_STKSTROVERFLOW, /* stack string tab overflow */ DTRACEDROP_DBLERROR /* error in ERROR probe */ } dtrace_dropkind_t; typedef struct dtrace_dropdata { dtrace_hdl_t *dtdda_handle; /* handle to DTrace library */ processorid_t dtdda_cpu; /* CPU, if any */ dtrace_dropkind_t dtdda_kind; /* kind of drop */ uint64_t dtdda_drops; /* number of drops */ uint64_t dtdda_total; /* total drops */ const char *dtdda_msg; /* preconstructed message */ } dtrace_dropdata_t; typedef int dtrace_handle_drop_f(const dtrace_dropdata_t *, void *); extern int dtrace_handle_drop(dtrace_hdl_t *, dtrace_handle_drop_f *, void *); typedef void dtrace_handle_proc_f(struct ps_prochandle *, const char *, void *); extern int dtrace_handle_proc(dtrace_hdl_t *, dtrace_handle_proc_f *, void *); #define DTRACE_BUFDATA_AGGKEY 0x0001 /* aggregation key */ #define DTRACE_BUFDATA_AGGVAL 0x0002 /* aggregation value */ #define DTRACE_BUFDATA_AGGFORMAT 0x0004 /* aggregation format data */ #define DTRACE_BUFDATA_AGGLAST 0x0008 /* last for this key/val */ typedef struct dtrace_bufdata { dtrace_hdl_t *dtbda_handle; /* handle to DTrace library */ const char *dtbda_buffered; /* buffered output */ dtrace_probedata_t *dtbda_probe; /* probe data */ const dtrace_recdesc_t *dtbda_recdesc; /* record description */ const dtrace_aggdata_t *dtbda_aggdata; /* aggregation data, if agg. */ uint32_t dtbda_flags; /* flags; see above */ } dtrace_bufdata_t; typedef int dtrace_handle_buffered_f(const dtrace_bufdata_t *, void *); extern int dtrace_handle_buffered(dtrace_hdl_t *, dtrace_handle_buffered_f *, void *); typedef struct dtrace_setoptdata { dtrace_hdl_t *dtsda_handle; /* handle to DTrace library */ const dtrace_probedata_t *dtsda_probe; /* probe data */ const char *dtsda_option; /* option that was set */ dtrace_optval_t dtsda_oldval; /* old value */ dtrace_optval_t dtsda_newval; /* new value */ } dtrace_setoptdata_t; typedef int dtrace_handle_setopt_f(const dtrace_setoptdata_t *, void *); extern int dtrace_handle_setopt(dtrace_hdl_t *, dtrace_handle_setopt_f *, void *); /* * DTrace Aggregate Interface */ #define DTRACE_A_PERCPU 0x0001 #define DTRACE_A_KEEPDELTA 0x0002 #define DTRACE_A_ANONYMOUS 0x0004 #define DTRACE_AGGWALK_ERROR -1 /* error while processing */ #define DTRACE_AGGWALK_NEXT 0 /* proceed to next element */ #define DTRACE_AGGWALK_ABORT 1 /* abort aggregation walk */ #define DTRACE_AGGWALK_CLEAR 2 /* clear this element */ #define DTRACE_AGGWALK_NORMALIZE 3 /* normalize this element */ #define DTRACE_AGGWALK_DENORMALIZE 4 /* denormalize this element */ #define DTRACE_AGGWALK_REMOVE 5 /* remove this element */ struct dtrace_aggdata { dtrace_hdl_t *dtada_handle; /* handle to DTrace library */ dtrace_aggdesc_t *dtada_desc; /* aggregation description */ dtrace_eprobedesc_t *dtada_edesc; /* enabled probe description */ dtrace_probedesc_t *dtada_pdesc; /* probe description */ caddr_t dtada_data; /* pointer to raw data */ uint64_t dtada_normal; /* the normal -- 1 for denorm */ size_t dtada_size; /* total size of the data */ caddr_t dtada_delta; /* delta data, if available */ caddr_t *dtada_percpu; /* per CPU data, if avail */ caddr_t *dtada_percpu_delta; /* per CPU delta, if avail */ }; typedef int dtrace_aggregate_f(const dtrace_aggdata_t *, void *); typedef int dtrace_aggregate_walk_f(dtrace_hdl_t *, dtrace_aggregate_f *, void *); typedef int dtrace_aggregate_walk_joined_f(const dtrace_aggdata_t **, const int, void *); extern void dtrace_aggregate_clear(dtrace_hdl_t *); extern int dtrace_aggregate_snap(dtrace_hdl_t *); extern int dtrace_aggregate_print(dtrace_hdl_t *, FILE *, dtrace_aggregate_walk_f *); extern int dtrace_aggregate_walk(dtrace_hdl_t *, dtrace_aggregate_f *, void *); extern int dtrace_aggregate_walk_joined(dtrace_hdl_t *, dtrace_aggvarid_t *, int, dtrace_aggregate_walk_joined_f *, void *); extern int dtrace_aggregate_walk_sorted(dtrace_hdl_t *, dtrace_aggregate_f *, void *); extern int dtrace_aggregate_walk_keysorted(dtrace_hdl_t *, dtrace_aggregate_f *, void *); extern int dtrace_aggregate_walk_valsorted(dtrace_hdl_t *, dtrace_aggregate_f *, void *); extern int dtrace_aggregate_walk_keyvarsorted(dtrace_hdl_t *, dtrace_aggregate_f *, void *); extern int dtrace_aggregate_walk_valvarsorted(dtrace_hdl_t *, dtrace_aggregate_f *, void *); extern int dtrace_aggregate_walk_keyrevsorted(dtrace_hdl_t *, dtrace_aggregate_f *, void *); extern int dtrace_aggregate_walk_valrevsorted(dtrace_hdl_t *, dtrace_aggregate_f *, void *); extern int dtrace_aggregate_walk_keyvarrevsorted(dtrace_hdl_t *, dtrace_aggregate_f *, void *); extern int dtrace_aggregate_walk_valvarrevsorted(dtrace_hdl_t *, dtrace_aggregate_f *, void *); #define DTRACE_AGD_PRINTED 0x1 /* aggregation printed in program */ /* * DTrace Process Control Interface * * Library clients who wish to have libdtrace create or grab processes for * monitoring of their symbol table changes may use these interfaces to * request that libdtrace obtain control of the process using libproc. */ #define DTRACE_PGRAB_RDONLY 0x1 extern struct ps_prochandle *dtrace_proc_create(dtrace_hdl_t *, const char *, char *const *); extern struct ps_prochandle *dtrace_proc_grab(dtrace_hdl_t *, pid_t, int); extern void dtrace_proc_release(dtrace_hdl_t *, struct ps_prochandle *); extern void dtrace_proc_continue(dtrace_hdl_t *, struct ps_prochandle *); /* * DTrace Object, Symbol, and Type Interfaces * * Library clients can use libdtrace to perform symbol and C type information * lookups by symbol name, symbol address, or C type name, or to lookup meta- * information cached for each of the program objects in use by DTrace. The * resulting struct contain pointers to arbitrary-length strings, including * object, symbol, and type names, that are persistent until the next call to * dtrace_update(). Once dtrace_update() is called, any cached values must * be flushed and not used subsequently by the client program. */ #define DTRACE_OBJ_EXEC ((const char *)0L) /* primary executable file */ #define DTRACE_OBJ_RTLD ((const char *)1L) /* run-time link-editor */ #define DTRACE_OBJ_CDEFS ((const char *)2L) /* C include definitions */ #define DTRACE_OBJ_DDEFS ((const char *)3L) /* D program definitions */ #define DTRACE_OBJ_EVERY ((const char *)-1L) /* all known objects */ #define DTRACE_OBJ_KMODS ((const char *)-2L) /* all kernel objects */ #define DTRACE_OBJ_UMODS ((const char *)-3L) /* all user objects */ typedef struct dtrace_objinfo { const char *dto_name; /* object file scope name */ const char *dto_file; /* object file path (if any) */ int dto_id; /* object file id (if any) */ uint_t dto_flags; /* object flags (see below) */ GElf_Addr dto_text_va; /* address of text section */ GElf_Xword dto_text_size; /* size of text section */ GElf_Addr dto_data_va; /* address of data section */ GElf_Xword dto_data_size; /* size of data section */ GElf_Addr dto_bss_va; /* address of BSS */ GElf_Xword dto_bss_size; /* size of BSS */ } dtrace_objinfo_t; #define DTRACE_OBJ_F_KERNEL 0x1 /* object is a kernel module */ #define DTRACE_OBJ_F_PRIMARY 0x2 /* object is a primary module */ typedef int dtrace_obj_f(dtrace_hdl_t *, const dtrace_objinfo_t *, void *); extern int dtrace_object_iter(dtrace_hdl_t *, dtrace_obj_f *, void *); extern int dtrace_object_info(dtrace_hdl_t *, const char *, dtrace_objinfo_t *); typedef struct dtrace_syminfo { const char *dts_object; /* object name */ const char *dts_name; /* symbol name */ ulong_t dts_id; /* symbol id */ } dtrace_syminfo_t; extern int dtrace_lookup_by_name(dtrace_hdl_t *, const char *, const char *, GElf_Sym *, dtrace_syminfo_t *); extern int dtrace_lookup_by_addr(dtrace_hdl_t *, GElf_Addr addr, GElf_Sym *, dtrace_syminfo_t *); /* * Currently match CTF type kinds. They don't need to, but if they're * changed, we need a converter from CTF type kinds to these. */ #define DTRACE_TYPE_K_UNKNOWN 0 #define DTRACE_TYPE_K_INTEGER 1 #define DTRACE_TYPE_K_FLOAT 2 #define DTRACE_TYPE_K_POINTER 3 #define DTRACE_TYPE_K_ARRAY 4 #define DTRACE_TYPE_K_FUNCTION 5 #define DTRACE_TYPE_K_STRUCT 6 #define DTRACE_TYPE_K_UNION 7 #define DTRACE_TYPE_K_ENUM 8 #define DTRACE_TYPE_K_FORWARD 9 #define DTRACE_TYPE_K_TYPEDEF 10 #define DTRACE_TYPE_K_VOLATILE 11 #define DTRACE_TYPE_K_CONST 12 #define DTRACE_TYPE_K_RESTRICT 13 #define DTRACE_TYPE_K_MAX 31 typedef struct dtrace_typeinfo { const char *dtt_object; /* object containing type */ ctf_file_t *dtt_ctfp; /* CTF container handle */ ctf_id_t dtt_type; /* CTF type identifier */ } dtrace_typeinfo_t; #define DTRACE_TYPE_INT_SIGNED 0x01 /* int is signed (otherwise unsigned) */ #define DTRACE_TYPE_INT_CHAR 0x02 /* character display format */ #define DTRACE_TYPE_INT_BOOL 0x04 /* boolean display format */ #define DTRACE_TYPE_INT_VARARGS 0x08 /* varargs display format */ #define DTRACE_TYPE_FP_SINGLE 1 /* IEEE 32-bit float encoding */ #define DTRACE_TYPE_FP_DOUBLE 2 /* IEEE 64-bit float encoding */ #define DTRACE_TYPE_FP_CPLX 3 /* Complex encoding */ #define DTRACE_TYPE_FP_DCPLX 4 /* Double complex encoding */ #define DTRACE_TYPE_FP_LDCPLX 5 /* Long double complex encoding */ #define DTRACE_TYPE_FP_LDOUBLE 6 /* Long double encoding */ #define DTRACE_TYPE_FP_INTRVL 7 /* Interval (2x32-bit) encoding */ #define DTRACE_TYPE_FP_DINTRVL 8 /* Double interval (2x64-bit) */ /* encoding */ #define DTRACE_TYPE_FP_LDINTRVL 9 /* Long double interval (2x128-bit) */ /* encoding */ #define DTRACE_TYPE_FP_IMAGRY 10 /* Imaginary (32-bit) encoding */ #define DTRACE_TYPE_FP_DIMAGRY 11 /* Long imaginary (64-bit) encoding */ #define DTRACE_TYPE_FP_LDIMAGRY 12 /* Long double imaginary (128-bit) */ /* encoding */ #define DTRACE_TYPE_FP_MAX 12 /* Maximum possible DTRACE_TYPE_FP_* */ /* value */ typedef struct dtrace_type_encoding { uint_t dte_format; /* data format (... flags) */ uint_t dte_offset; /* offset of value in bits */ uint_t dte_bits; /* size of storage in bits */ } dtrace_type_encoding_t; typedef struct dtrace_type_arinfo { dtrace_typeinfo_t dta_contents; dtrace_typeinfo_t dta_index; uint_t dta_nelems; } dtrace_type_arinfo_t; typedef struct dtrace_type_membinfo { dtrace_typeinfo_t dtm_type; /* type of struct or union member */ ulong_t dtm_offset; /* offset of member in bits */ } dtrace_type_membinfo_t; extern int dtrace_lookup_by_type(dtrace_hdl_t *, const char *, const char *, dtrace_typeinfo_t *); extern int dtrace_symbol_type(dtrace_hdl_t *, const GElf_Sym *, const dtrace_syminfo_t *, dtrace_typeinfo_t *); extern int dtrace_type_strcompile(dtrace_hdl_t *, const char *, dtrace_typeinfo_t *); extern int dtrace_type_fcompile(dtrace_hdl_t *, FILE *, dtrace_typeinfo_t *); extern int dtrace_type_array_info(dtrace_hdl_t *, const dtrace_typeinfo_t *, dtrace_type_arinfo_t *); extern int dtrace_type_cmp(dtrace_hdl_t *, const dtrace_typeinfo_t *, const dtrace_typeinfo_t *); extern int dtrace_type_compat(dtrace_hdl_t *, const dtrace_typeinfo_t *, const dtrace_typeinfo_t *); extern int dtrace_type_name(dtrace_hdl_t *, const dtrace_typeinfo_t *, char *, size_t); extern int dtrace_type_enum_name(dtrace_hdl_t *, const dtrace_typeinfo_t *, int, char *, size_t); extern dtrace_typeinfo_t *dtrace_type_resolve(dtrace_hdl_t *, const dtrace_typeinfo_t *); extern ssize_t dtrace_type_size(dtrace_hdl_t *, const dtrace_typeinfo_t *); extern ssize_t dtrace_type_align(dtrace_hdl_t *, const dtrace_typeinfo_t *); extern int dtrace_type_kind(dtrace_hdl_t *, const dtrace_typeinfo_t *); extern dtrace_typeinfo_t *dtrace_type_reference(dtrace_hdl_t *, const dtrace_typeinfo_t *); extern dtrace_typeinfo_t *dtrace_type_pointer(dtrace_hdl_t *, const dtrace_typeinfo_t *); extern int dtrace_type_encoding(dtrace_hdl_t *, const dtrace_typeinfo_t *, dtrace_type_encoding_t *); extern int dtrace_type_member_info(dtrace_hdl_t *, const dtrace_typeinfo_t *, const char *, dtrace_type_membinfo_t *); typedef int dtrace_type_visit_f(dtrace_hdl_t *, const dtrace_typeinfo_t *, const char *, ulong_t, int, void *); extern int dtrace_type_visit(dtrace_hdl_t *, const dtrace_typeinfo_t *, dtrace_type_visit_f *, void *); typedef int dtrace_type_member_iter_f(dtrace_hdl_t *, const char *, const dtrace_typeinfo_t *, ulong_t, void *); extern int dtrace_type_member_iter(dtrace_hdl_t *, const dtrace_typeinfo_t *, dtrace_type_member_iter_f *, void *); /* * DTrace Probe Interface * * Library clients can use these functions to iterate over the set of available * probe definitions and inquire as to their attributes. The probe iteration * interfaces report probes that are declared as well as those from dtrace(4D). */ typedef struct dtrace_probeinfo { dtrace_attribute_t dtp_attr; /* name attributes */ dtrace_attribute_t dtp_arga; /* arg attributes */ const dtrace_typeinfo_t *dtp_argv; /* arg types */ int dtp_argc; /* arg count */ } dtrace_probeinfo_t; typedef int dtrace_probe_f(dtrace_hdl_t *, const dtrace_probedesc_t *, void *); extern int dtrace_probe_iter(dtrace_hdl_t *, const dtrace_probedesc_t *pdp, dtrace_probe_f *, void *); extern int dtrace_probe_info(dtrace_hdl_t *, const dtrace_probedesc_t *, dtrace_probeinfo_t *); /* * DTrace Vector Interface * * The DTrace library normally speaks directly to dtrace(4D). However, * this communication may be vectored elsewhere. Consumers who wish to * perform a vectored open must fill in the vector, and use the dtrace_vopen() * entry point to obtain a library handle. */ struct dtrace_vector { int (*dtv_ioctl)(void *, int, void *); int (*dtv_lookup_by_addr)(void *, GElf_Addr, GElf_Sym *, dtrace_syminfo_t *); int (*dtv_status)(void *, processorid_t); long (*dtv_sysconf)(void *, int); }; /* * DTrace Utility Functions * * Library clients can use these functions to convert addresses strings, to * convert between string and integer probe descriptions and the * dtrace_probedesc_t representation, and to perform similar conversions on * stability attributes. */ extern int dtrace_addr2str(dtrace_hdl_t *, uint64_t, char *, int); extern int dtrace_uaddr2str(dtrace_hdl_t *, pid_t, uint64_t, char *, int); extern int dtrace_xstr2desc(dtrace_hdl_t *, dtrace_probespec_t, const char *, int, char *const [], dtrace_probedesc_t *); extern int dtrace_str2desc(dtrace_hdl_t *, dtrace_probespec_t, const char *, dtrace_probedesc_t *); extern int dtrace_id2desc(dtrace_hdl_t *, dtrace_id_t, dtrace_probedesc_t *); #define DTRACE_DESC2STR_MAX 1024 /* min buf size for dtrace_desc2str() */ extern char *dtrace_desc2str(const dtrace_probedesc_t *, char *, size_t); #define DTRACE_ATTR2STR_MAX 64 /* min buf size for dtrace_attr2str() */ extern char *dtrace_attr2str(dtrace_attribute_t, char *, size_t); extern int dtrace_str2attr(const char *, dtrace_attribute_t *); extern const char *dtrace_stability_name(dtrace_stability_t); extern const char *dtrace_class_name(dtrace_class_t); extern int dtrace_provider_modules(dtrace_hdl_t *, const char **, int); extern const char *const _dtrace_version; extern int _dtrace_debug; extern FILE *_dtrace_debugfile; #ifdef __cplusplus } #endif #endif /* _DTRACE_H */