diff options
Diffstat (limited to 'cddl/contrib/opensolaris/lib/libdtrace/common/dt_impl.h')
-rw-r--r-- | cddl/contrib/opensolaris/lib/libdtrace/common/dt_impl.h | 691 |
1 files changed, 691 insertions, 0 deletions
diff --git a/cddl/contrib/opensolaris/lib/libdtrace/common/dt_impl.h b/cddl/contrib/opensolaris/lib/libdtrace/common/dt_impl.h new file mode 100644 index 0000000..6bcc5bc --- /dev/null +++ b/cddl/contrib/opensolaris/lib/libdtrace/common/dt_impl.h @@ -0,0 +1,691 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License (the "License"). + * You may not use this file except in compliance with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ + +/* + * Copyright 2008 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#ifndef _DT_IMPL_H +#define _DT_IMPL_H + +#pragma ident "%Z%%M% %I% %E% SMI" + +#include <sys/param.h> +#include <sys/objfs.h> +#if !defined(sun) +#include <sys/bitmap.h> +#include <sys/utsname.h> +#include <sys/ioccom.h> +#include <sys/time.h> +#include <string.h> +#endif +#include <setjmp.h> +#include <libctf.h> +#include <dtrace.h> +#include <gelf.h> + +#ifdef __cplusplus +extern "C" { +#endif + +#include <dt_parser.h> +#include <dt_regset.h> +#include <dt_inttab.h> +#include <dt_strtab.h> +#include <dt_ident.h> +#include <dt_list.h> +#include <dt_decl.h> +#include <dt_as.h> +#include <dt_proc.h> +#include <dt_dof.h> +#include <dt_pcb.h> + +struct dt_module; /* see below */ +struct dt_pfdict; /* see <dt_printf.h> */ +struct dt_arg; /* see below */ +struct dt_provider; /* see <dt_provider.h> */ +struct dt_xlator; /* see <dt_xlator.h> */ + +typedef struct dt_intrinsic { + const char *din_name; /* string name of the intrinsic type */ + ctf_encoding_t din_data; /* integer or floating-point CTF encoding */ + uint_t din_kind; /* CTF type kind to instantiate */ +} dt_intrinsic_t; + +typedef struct dt_typedef { + const char *dty_src; /* string name of typedef source type */ + const char *dty_dst; /* string name of typedef destination type */ +} dt_typedef_t; + +typedef struct dt_intdesc { + const char *did_name; /* string name of the integer type */ + ctf_file_t *did_ctfp; /* CTF container for this type reference */ + ctf_id_t did_type; /* CTF type reference for this type */ + uintmax_t did_limit; /* maximum positive value held by type */ +} dt_intdesc_t; + +typedef struct dt_modops { + uint_t (*do_syminit)(struct dt_module *); + void (*do_symsort)(struct dt_module *); + GElf_Sym *(*do_symname)(struct dt_module *, + const char *, GElf_Sym *, uint_t *); + GElf_Sym *(*do_symaddr)(struct dt_module *, + GElf_Addr, GElf_Sym *, uint_t *); +} dt_modops_t; + +typedef struct dt_arg { + int da_ndx; /* index of this argument */ + int da_mapping; /* mapping of argument indices to arguments */ + ctf_id_t da_type; /* type of argument */ + ctf_file_t *da_ctfp; /* CTF container for type */ + dt_ident_t *da_xlator; /* translator, if any */ + struct dt_arg *da_next; /* next argument */ +} dt_arg_t; + +typedef struct dt_sym { + uint_t ds_symid; /* id of corresponding symbol */ + uint_t ds_next; /* index of next element in hash chain */ +} dt_sym_t; + +typedef struct dt_module { + dt_list_t dm_list; /* list forward/back pointers */ + char dm_name[DTRACE_MODNAMELEN]; /* string name of module */ + char dm_file[MAXPATHLEN]; /* file path of module (if any) */ + struct dt_module *dm_next; /* pointer to next module in hash chain */ + const dt_modops_t *dm_ops; /* pointer to data model's ops vector */ + Elf *dm_elf; /* libelf handle for module object */ + objfs_info_t dm_info; /* object filesystem private info */ + ctf_sect_t dm_symtab; /* symbol table for module */ + ctf_sect_t dm_strtab; /* string table for module */ + ctf_sect_t dm_ctdata; /* CTF data for module */ + ctf_file_t *dm_ctfp; /* CTF container handle */ + uint_t *dm_symbuckets; /* symbol table hash buckets (chain indices) */ + dt_sym_t *dm_symchains; /* symbol table hash chains buffer */ + void *dm_asmap; /* symbol pointers sorted by value */ + uint_t dm_symfree; /* index of next free hash element */ + uint_t dm_nsymbuckets; /* number of elements in bucket array */ + uint_t dm_nsymelems; /* number of elements in hash table */ + uint_t dm_asrsv; /* actual reserved size of dm_asmap */ + uint_t dm_aslen; /* number of entries in dm_asmap */ + uint_t dm_flags; /* module flags (see below) */ + int dm_modid; /* modinfo(1M) module identifier */ + GElf_Addr dm_text_va; /* virtual address of text section */ + GElf_Xword dm_text_size; /* size in bytes of text section */ + GElf_Addr dm_data_va; /* virtual address of data section */ + GElf_Xword dm_data_size; /* size in bytes of data section */ + GElf_Addr dm_bss_va; /* virtual address of BSS */ + GElf_Xword dm_bss_size; /* size in bytes of BSS */ + dt_idhash_t *dm_extern; /* external symbol definitions */ +#if !defined(sun) + caddr_t dm_reloc_offset; /* Symbol relocation offset. */ +#endif +} dt_module_t; + +#define DT_DM_LOADED 0x1 /* module symbol and type data is loaded */ +#define DT_DM_KERNEL 0x2 /* module is associated with a kernel object */ +#define DT_DM_PRIMARY 0x4 /* module is a krtld primary kernel object */ + +typedef struct dt_provmod { + char *dp_name; /* name of provider module */ + struct dt_provmod *dp_next; /* next module */ +} dt_provmod_t; + +typedef struct dt_ahashent { + struct dt_ahashent *dtahe_prev; /* prev on hash chain */ + struct dt_ahashent *dtahe_next; /* next on hash chain */ + struct dt_ahashent *dtahe_prevall; /* prev on list of all */ + struct dt_ahashent *dtahe_nextall; /* next on list of all */ + uint64_t dtahe_hashval; /* hash value */ + size_t dtahe_size; /* size of data */ + dtrace_aggdata_t dtahe_data; /* data */ + void (*dtahe_aggregate)(int64_t *, int64_t *, size_t); /* function */ +} dt_ahashent_t; + +typedef struct dt_ahash { + dt_ahashent_t **dtah_hash; /* hash table */ + dt_ahashent_t *dtah_all; /* list of all elements */ + size_t dtah_size; /* size of hash table */ +} dt_ahash_t; + +typedef struct dt_aggregate { + dtrace_bufdesc_t dtat_buf; /* buf aggregation snapshot */ + int dtat_flags; /* aggregate flags */ + processorid_t dtat_ncpus; /* number of CPUs in aggregate */ + processorid_t *dtat_cpus; /* CPUs in aggregate */ + processorid_t dtat_ncpu; /* size of dtat_cpus array */ + processorid_t dtat_maxcpu; /* maximum number of CPUs */ + dt_ahash_t dtat_hash; /* aggregate hash table */ +} dt_aggregate_t; + +typedef struct dt_print_aggdata { + dtrace_hdl_t *dtpa_dtp; /* pointer to libdtrace handle */ + dtrace_aggvarid_t dtpa_id; /* aggregation variable of interest */ + FILE *dtpa_fp; /* file pointer */ + int dtpa_allunprint; /* print only unprinted aggregations */ +} dt_print_aggdata_t; + +typedef struct dt_dirpath { + dt_list_t dir_list; /* linked-list forward/back pointers */ + char *dir_path; /* directory pathname */ +} dt_dirpath_t; + +typedef struct dt_lib_depend { + dt_list_t dtld_deplist; /* linked-list forward/back pointers */ + char *dtld_library; /* library name */ + char *dtld_libpath; /* library pathname */ + uint_t dtld_finish; /* completion time in tsort for lib */ + uint_t dtld_start; /* starting time in tsort for lib */ + uint_t dtld_loaded; /* boolean: is this library loaded */ + dt_list_t dtld_dependencies; /* linked-list of lib dependencies */ + dt_list_t dtld_dependents; /* linked-list of lib dependents */ +} dt_lib_depend_t; + +typedef uint32_t dt_version_t; /* encoded version (see below) */ + +struct dtrace_hdl { + const dtrace_vector_t *dt_vector; /* library vector, if vectored open */ + void *dt_varg; /* vector argument, if vectored open */ + dtrace_conf_t dt_conf; /* DTrace driver configuration profile */ + char dt_errmsg[BUFSIZ]; /* buffer for formatted syntax error msgs */ + const char *dt_errtag; /* tag used with last call to dt_set_errmsg() */ + dt_pcb_t *dt_pcb; /* pointer to current parsing control block */ + ulong_t dt_gen; /* compiler generation number */ + dt_list_t dt_programs; /* linked list of dtrace_prog_t's */ + dt_list_t dt_xlators; /* linked list of dt_xlator_t's */ + struct dt_xlator **dt_xlatormap; /* dt_xlator_t's indexed by dx_id */ + id_t dt_xlatorid; /* next dt_xlator_t id to assign */ + dt_ident_t *dt_externs; /* linked list of external symbol identifiers */ + dt_idhash_t *dt_macros; /* hash table of macro variable identifiers */ + dt_idhash_t *dt_aggs; /* hash table of aggregation identifiers */ + dt_idhash_t *dt_globals; /* hash table of global identifiers */ + dt_idhash_t *dt_tls; /* hash table of thread-local identifiers */ + dt_list_t dt_modlist; /* linked list of dt_module_t's */ + dt_module_t **dt_mods; /* hash table of dt_module_t's */ + uint_t dt_modbuckets; /* number of module hash buckets */ + uint_t dt_nmods; /* number of modules in hash and list */ + dt_provmod_t *dt_provmod; /* linked list of provider modules */ + dt_module_t *dt_exec; /* pointer to executable module */ + dt_module_t *dt_rtld; /* pointer to run-time linker module */ + dt_module_t *dt_cdefs; /* pointer to C dynamic type module */ + dt_module_t *dt_ddefs; /* pointer to D dynamic type module */ + dt_list_t dt_provlist; /* linked list of dt_provider_t's */ + struct dt_provider **dt_provs; /* hash table of dt_provider_t's */ + uint_t dt_provbuckets; /* number of provider hash buckets */ + uint_t dt_nprovs; /* number of providers in hash and list */ + dt_proc_hash_t *dt_procs; /* hash table of grabbed process handles */ + dt_intdesc_t dt_ints[6]; /* cached integer type descriptions */ + ctf_id_t dt_type_func; /* cached CTF identifier for function type */ + ctf_id_t dt_type_fptr; /* cached CTF identifier for function pointer */ + ctf_id_t dt_type_str; /* cached CTF identifier for string type */ + ctf_id_t dt_type_dyn; /* cached CTF identifier for <DYN> type */ + ctf_id_t dt_type_stack; /* cached CTF identifier for stack type */ + ctf_id_t dt_type_symaddr; /* cached CTF identifier for _symaddr type */ + ctf_id_t dt_type_usymaddr; /* cached CTF ident. for _usymaddr type */ + size_t dt_maxprobe; /* max enabled probe ID */ + dtrace_eprobedesc_t **dt_edesc; /* enabled probe descriptions */ + dtrace_probedesc_t **dt_pdesc; /* probe descriptions for enabled prbs */ + size_t dt_maxagg; /* max aggregation ID */ + dtrace_aggdesc_t **dt_aggdesc; /* aggregation descriptions */ + int dt_maxformat; /* max format ID */ + void **dt_formats; /* pointer to format array */ + dt_aggregate_t dt_aggregate; /* aggregate */ + dtrace_bufdesc_t dt_buf; /* staging buffer */ + struct dt_pfdict *dt_pfdict; /* dictionary of printf conversions */ + dt_version_t dt_vmax; /* optional ceiling on program API binding */ + dtrace_attribute_t dt_amin; /* optional floor on program attributes */ + char *dt_cpp_path; /* pathname of cpp(1) to invoke if needed */ + char **dt_cpp_argv; /* argument vector for exec'ing cpp(1) */ + int dt_cpp_argc; /* count of initialized cpp(1) arguments */ + int dt_cpp_args; /* size of dt_cpp_argv[] array */ + char *dt_ld_path; /* pathname of ld(1) to invoke if needed */ + dt_list_t dt_lib_path; /* linked-list forming library search path */ + uint_t dt_lazyload; /* boolean: set via -xlazyload */ + uint_t dt_droptags; /* boolean: set via -xdroptags */ + uint_t dt_active; /* boolean: set once tracing is active */ + uint_t dt_stopped; /* boolean: set once tracing is stopped */ + processorid_t dt_beganon; /* CPU that executed BEGIN probe (if any) */ + processorid_t dt_endedon; /* CPU that executed END probe (if any) */ + uint_t dt_oflags; /* dtrace open-time options (see dtrace.h) */ + uint_t dt_cflags; /* dtrace compile-time options (see dtrace.h) */ + uint_t dt_dflags; /* dtrace link-time options (see dtrace.h) */ + uint_t dt_prcmode; /* dtrace process create mode (see dt_proc.h) */ + uint_t dt_linkmode; /* dtrace symbol linking mode (see below) */ + uint_t dt_linktype; /* dtrace link output file type (see below) */ + uint_t dt_xlatemode; /* dtrace translator linking mode (see below) */ + uint_t dt_stdcmode; /* dtrace stdc compatibility mode (see below) */ + uint_t dt_treedump; /* dtrace tree debug bitmap (see below) */ + uint64_t dt_options[DTRACEOPT_MAX]; /* dtrace run-time options */ + int dt_version; /* library version requested by client */ + int dt_ctferr; /* error resulting from last CTF failure */ + int dt_errno; /* error resulting from last failed operation */ +#if !defined(sun) + const char *dt_errfile; + int dt_errline; +#endif + int dt_fd; /* file descriptor for dtrace pseudo-device */ + int dt_ftfd; /* file descriptor for fasttrap pseudo-device */ + int dt_fterr; /* saved errno from failed open of dt_ftfd */ + int dt_cdefs_fd; /* file descriptor for C CTF debugging cache */ + int dt_ddefs_fd; /* file descriptor for D CTF debugging cache */ +#if defined(sun) + int dt_stdout_fd; /* file descriptor for saved stdout */ +#else + FILE *dt_freopen_fp; /* file pointer for freopened stdout */ +#endif + dtrace_handle_err_f *dt_errhdlr; /* error handler, if any */ + void *dt_errarg; /* error handler argument */ + dtrace_prog_t *dt_errprog; /* error handler program, if any */ + dtrace_handle_drop_f *dt_drophdlr; /* drop handler, if any */ + void *dt_droparg; /* drop handler argument */ + dtrace_handle_proc_f *dt_prochdlr; /* proc handler, if any */ + void *dt_procarg; /* proc handler argument */ + dtrace_handle_setopt_f *dt_setopthdlr; /* setopt handler, if any */ + void *dt_setoptarg; /* setopt handler argument */ + dtrace_status_t dt_status[2]; /* status cache */ + int dt_statusgen; /* current status generation */ + hrtime_t dt_laststatus; /* last status */ + hrtime_t dt_lastswitch; /* last switch of buffer data */ + hrtime_t dt_lastagg; /* last snapshot of aggregation data */ + char *dt_sprintf_buf; /* buffer for dtrace_sprintf() */ + int dt_sprintf_buflen; /* length of dtrace_sprintf() buffer */ + const char *dt_filetag; /* default filetag for dt_set_errmsg() */ + char *dt_buffered_buf; /* buffer for buffered output */ + size_t dt_buffered_offs; /* current offset into buffered buffer */ + size_t dt_buffered_size; /* size of buffered buffer */ + dtrace_handle_buffered_f *dt_bufhdlr; /* buffered handler, if any */ + void *dt_bufarg; /* buffered handler argument */ + dt_dof_t dt_dof; /* DOF generation buffers (see dt_dof.c) */ + struct utsname dt_uts; /* uname(2) information for system */ + dt_list_t dt_lib_dep; /* scratch linked-list of lib dependencies */ + dt_list_t dt_lib_dep_sorted; /* dependency sorted library list */ +}; + +/* + * Values for the user arg of the ECB. + */ +#define DT_ECB_DEFAULT 0 +#define DT_ECB_ERROR 1 + +/* + * Values for the dt_linkmode property, which is used by the assembler when + * processing external symbol references. User can set using -xlink=<mode>. + */ +#define DT_LINK_KERNEL 0 /* kernel syms static, user syms dynamic */ +#define DT_LINK_PRIMARY 1 /* primary kernel syms static, others dynamic */ +#define DT_LINK_DYNAMIC 2 /* all symbols dynamic */ +#define DT_LINK_STATIC 3 /* all symbols static */ + +/* + * Values for the dt_linktype property, which is used by dtrace_program_link() + * to determine the type of output file that is desired by the client. + */ +#define DT_LTYP_ELF 0 /* produce ELF containing DOF */ +#define DT_LTYP_DOF 1 /* produce stand-alone DOF */ + +/* + * Values for the dt_xlatemode property, which is used to determine whether + * references to dynamic translators are permitted. Set using -xlate=<mode>. + */ +#define DT_XL_STATIC 0 /* require xlators to be statically defined */ +#define DT_XL_DYNAMIC 1 /* produce references to dynamic translators */ + +/* + * Values for the dt_stdcmode property, which is used by the compiler when + * running cpp to determine the presence and setting of the __STDC__ macro. + */ +#define DT_STDC_XA 0 /* ISO C + K&R C compat w/o ISO: __STDC__=0 */ +#define DT_STDC_XC 1 /* Strict ISO C: __STDC__=1 */ +#define DT_STDC_XS 2 /* K&R C: __STDC__ not defined */ +#define DT_STDC_XT 3 /* ISO C + K&R C compat with ISO: __STDC__=0 */ + +/* + * Macro to test whether a given pass bit is set in the dt_treedump bit-vector. + * If the bit for pass 'p' is set, the D compiler displays the parse tree for + * the program by printing it to stderr at the end of compiler pass 'p'. + */ +#define DT_TREEDUMP_PASS(dtp, p) ((dtp)->dt_treedump & (1 << ((p) - 1))) + +/* + * Macros for accessing the cached CTF container and type ID for the common + * types "int", "string", and <DYN>, which we need to use frequently in the D + * compiler. The DT_INT_* macro relies upon "int" being at index 0 in the + * _dtrace_ints_* tables in dt_open.c; the others are also set up there. + */ +#define DT_INT_CTFP(dtp) ((dtp)->dt_ints[0].did_ctfp) +#define DT_INT_TYPE(dtp) ((dtp)->dt_ints[0].did_type) + +#define DT_FUNC_CTFP(dtp) ((dtp)->dt_ddefs->dm_ctfp) +#define DT_FUNC_TYPE(dtp) ((dtp)->dt_type_func) + +#define DT_FPTR_CTFP(dtp) ((dtp)->dt_ddefs->dm_ctfp) +#define DT_FPTR_TYPE(dtp) ((dtp)->dt_type_fptr) + +#define DT_STR_CTFP(dtp) ((dtp)->dt_ddefs->dm_ctfp) +#define DT_STR_TYPE(dtp) ((dtp)->dt_type_str) + +#define DT_DYN_CTFP(dtp) ((dtp)->dt_ddefs->dm_ctfp) +#define DT_DYN_TYPE(dtp) ((dtp)->dt_type_dyn) + +#define DT_STACK_CTFP(dtp) ((dtp)->dt_ddefs->dm_ctfp) +#define DT_STACK_TYPE(dtp) ((dtp)->dt_type_stack) + +#define DT_SYMADDR_CTFP(dtp) ((dtp)->dt_ddefs->dm_ctfp) +#define DT_SYMADDR_TYPE(dtp) ((dtp)->dt_type_symaddr) + +#define DT_USYMADDR_CTFP(dtp) ((dtp)->dt_ddefs->dm_ctfp) +#define DT_USYMADDR_TYPE(dtp) ((dtp)->dt_type_usymaddr) + +/* + * Actions and subroutines are both DT_NODE_FUNC nodes; to avoid confusing + * an action for a subroutine (or vice versa), we assure that the DT_ACT_* + * constants and the DIF_SUBR_* constants occupy non-overlapping ranges by + * starting the DT_ACT_* constants at DIF_SUBR_MAX + 1. + */ +#define DT_ACT_BASE DIF_SUBR_MAX + 1 +#define DT_ACT(n) (DT_ACT_BASE + (n)) + +#define DT_ACT_PRINTF DT_ACT(0) /* printf() action */ +#define DT_ACT_TRACE DT_ACT(1) /* trace() action */ +#define DT_ACT_TRACEMEM DT_ACT(2) /* tracemem() action */ +#define DT_ACT_STACK DT_ACT(3) /* stack() action */ +#define DT_ACT_STOP DT_ACT(4) /* stop() action */ +#define DT_ACT_BREAKPOINT DT_ACT(5) /* breakpoint() action */ +#define DT_ACT_PANIC DT_ACT(6) /* panic() action */ +#define DT_ACT_SPECULATE DT_ACT(7) /* speculate() action */ +#define DT_ACT_COMMIT DT_ACT(8) /* commit() action */ +#define DT_ACT_DISCARD DT_ACT(9) /* discard() action */ +#define DT_ACT_CHILL DT_ACT(10) /* chill() action */ +#define DT_ACT_EXIT DT_ACT(11) /* exit() action */ +#define DT_ACT_USTACK DT_ACT(12) /* ustack() action */ +#define DT_ACT_PRINTA DT_ACT(13) /* printa() action */ +#define DT_ACT_RAISE DT_ACT(14) /* raise() action */ +#define DT_ACT_CLEAR DT_ACT(15) /* clear() action */ +#define DT_ACT_NORMALIZE DT_ACT(16) /* normalize() action */ +#define DT_ACT_DENORMALIZE DT_ACT(17) /* denormalize() action */ +#define DT_ACT_TRUNC DT_ACT(18) /* trunc() action */ +#define DT_ACT_SYSTEM DT_ACT(19) /* system() action */ +#define DT_ACT_JSTACK DT_ACT(20) /* jstack() action */ +#define DT_ACT_FTRUNCATE DT_ACT(21) /* ftruncate() action */ +#define DT_ACT_FREOPEN DT_ACT(22) /* freopen() action */ +#define DT_ACT_SYM DT_ACT(23) /* sym()/func() actions */ +#define DT_ACT_MOD DT_ACT(24) /* mod() action */ +#define DT_ACT_USYM DT_ACT(25) /* usym()/ufunc() actions */ +#define DT_ACT_UMOD DT_ACT(26) /* umod() action */ +#define DT_ACT_UADDR DT_ACT(27) /* uaddr() action */ +#define DT_ACT_SETOPT DT_ACT(28) /* setopt() action */ +#define DT_ACT_PRINTM DT_ACT(29) /* printm() action */ +#define DT_ACT_PRINTT DT_ACT(30) /* printt() action */ + +/* + * Sentinel to tell freopen() to restore the saved stdout. This must not + * be ever valid for opening for write access via freopen(3C), which of + * course, "." never is. + */ +#define DT_FREOPEN_RESTORE "." + +#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 */ +}; + +/* + * Interfaces for parsing and comparing DTrace attribute tuples, which describe + * stability and architectural binding information. The dtrace_attribute_t + * structure and associated constant definitions are found in <sys/dtrace.h>. + */ +extern dtrace_attribute_t dt_attr_min(dtrace_attribute_t, dtrace_attribute_t); +extern dtrace_attribute_t dt_attr_max(dtrace_attribute_t, dtrace_attribute_t); +extern char *dt_attr_str(dtrace_attribute_t, char *, size_t); +extern int dt_attr_cmp(dtrace_attribute_t, dtrace_attribute_t); + +/* + * Interfaces for parsing and handling DTrace version strings. Version binding + * is a feature of the D compiler that is handled completely independently of + * the DTrace kernel infrastructure, so the definitions are here in libdtrace. + * Version strings are compiled into an encoded uint32_t which can be compared + * using C comparison operators. Version definitions are found in dt_open.c. + */ +#define DT_VERSION_STRMAX 16 /* enough for "255.4095.4095\0" */ +#define DT_VERSION_MAJMAX 0xFF /* maximum major version number */ +#define DT_VERSION_MINMAX 0xFFF /* maximum minor version number */ +#define DT_VERSION_MICMAX 0xFFF /* maximum micro version number */ + +#define DT_VERSION_NUMBER(M, m, u) \ + ((((M) & 0xFF) << 24) | (((m) & 0xFFF) << 12) | ((u) & 0xFFF)) + +#define DT_VERSION_MAJOR(v) (((v) & 0xFF000000) >> 24) +#define DT_VERSION_MINOR(v) (((v) & 0x00FFF000) >> 12) +#define DT_VERSION_MICRO(v) ((v) & 0x00000FFF) + +extern char *dt_version_num2str(dt_version_t, char *, size_t); +extern int dt_version_str2num(const char *, dt_version_t *); +extern int dt_version_defined(dt_version_t); + +/* + * Miscellaneous internal libdtrace interfaces. The definitions below are for + * libdtrace routines that do not yet merit their own separate header file. + */ +extern char *dt_cpp_add_arg(dtrace_hdl_t *, const char *); +extern char *dt_cpp_pop_arg(dtrace_hdl_t *); + +#if defined(sun) +extern int dt_set_errno(dtrace_hdl_t *, int); +#else +int _dt_set_errno(dtrace_hdl_t *, int, const char *, int); +void dt_get_errloc(dtrace_hdl_t *, const char **, int *); +#define dt_set_errno(_a,_b) _dt_set_errno(_a,_b,__FILE__,__LINE__) +#endif +extern void dt_set_errmsg(dtrace_hdl_t *, const char *, const char *, + const char *, int, const char *, va_list); + +#if defined(sun) +extern int dt_ioctl(dtrace_hdl_t *, int, void *); +#else +extern int dt_ioctl(dtrace_hdl_t *, u_long, void *); +#endif +extern int dt_status(dtrace_hdl_t *, processorid_t); +extern long dt_sysconf(dtrace_hdl_t *, int); +extern ssize_t dt_write(dtrace_hdl_t *, int, const void *, size_t); +extern int dt_printf(dtrace_hdl_t *, FILE *, const char *, ...); + +extern void *dt_zalloc(dtrace_hdl_t *, size_t); +extern void *dt_alloc(dtrace_hdl_t *, size_t); +extern void dt_free(dtrace_hdl_t *, void *); +extern void dt_difo_free(dtrace_hdl_t *, dtrace_difo_t *); + +extern int dt_gmatch(const char *, const char *); +extern char *dt_basename(char *); + +extern ulong_t dt_popc(ulong_t); +extern ulong_t dt_popcb(const ulong_t *, ulong_t); + +extern int dt_buffered_enable(dtrace_hdl_t *); +extern int dt_buffered_flush(dtrace_hdl_t *, dtrace_probedata_t *, + const dtrace_recdesc_t *, const dtrace_aggdata_t *, uint32_t flags); +extern void dt_buffered_disable(dtrace_hdl_t *); +extern void dt_buffered_destroy(dtrace_hdl_t *); + +extern int dt_rw_read_held(pthread_rwlock_t *); +extern int dt_rw_write_held(pthread_rwlock_t *); +extern int dt_mutex_held(pthread_mutex_t *); + +extern uint64_t dt_stddev(uint64_t *, uint64_t); + +#define DT_RW_READ_HELD(x) dt_rw_read_held(x) +#define DT_RW_WRITE_HELD(x) dt_rw_write_held(x) +#define DT_RW_LOCK_HELD(x) (DT_RW_READ_HELD(x) || DT_RW_WRITE_HELD(x)) +#define DT_MUTEX_HELD(x) dt_mutex_held(x) + +extern int dt_options_load(dtrace_hdl_t *); + +extern void dt_dprintf(const char *, ...); + +extern void dt_setcontext(dtrace_hdl_t *, dtrace_probedesc_t *); +extern void dt_endcontext(dtrace_hdl_t *); + +extern void dt_pragma(dt_node_t *); +extern int dt_reduce(dtrace_hdl_t *, dt_version_t); +extern void dt_cg(dt_pcb_t *, dt_node_t *); +extern dtrace_difo_t *dt_as(dt_pcb_t *); +extern void dt_dis(const dtrace_difo_t *, FILE *); + +extern int dt_aggregate_go(dtrace_hdl_t *); +extern int dt_aggregate_init(dtrace_hdl_t *); +extern void dt_aggregate_destroy(dtrace_hdl_t *); + +extern int dt_epid_lookup(dtrace_hdl_t *, dtrace_epid_t, + dtrace_eprobedesc_t **, dtrace_probedesc_t **); +extern void dt_epid_destroy(dtrace_hdl_t *); +extern int dt_aggid_lookup(dtrace_hdl_t *, dtrace_aggid_t, dtrace_aggdesc_t **); +extern void dt_aggid_destroy(dtrace_hdl_t *); + +extern void *dt_format_lookup(dtrace_hdl_t *, int); +extern void dt_format_destroy(dtrace_hdl_t *); + +extern int dt_print_quantize(dtrace_hdl_t *, FILE *, + const void *, size_t, uint64_t); +extern int dt_print_lquantize(dtrace_hdl_t *, FILE *, + const void *, size_t, uint64_t); +extern int dt_print_agg(const dtrace_aggdata_t *, void *); + +extern int dt_handle(dtrace_hdl_t *, dtrace_probedata_t *); +extern int dt_handle_liberr(dtrace_hdl_t *, + const dtrace_probedata_t *, const char *); +extern int dt_handle_cpudrop(dtrace_hdl_t *, processorid_t, + dtrace_dropkind_t, uint64_t); +extern int dt_handle_status(dtrace_hdl_t *, + dtrace_status_t *, dtrace_status_t *); +extern int dt_handle_setopt(dtrace_hdl_t *, dtrace_setoptdata_t *); + +extern int dt_lib_depend_add(dtrace_hdl_t *, dt_list_t *, const char *); +extern dt_lib_depend_t *dt_lib_depend_lookup(dt_list_t *, const char *); + +extern dt_pcb_t *yypcb; /* pointer to current parser control block */ +extern char yyintprefix; /* int token prefix for macros (+/-) */ +extern char yyintsuffix[4]; /* int token suffix ([uUlL]*) */ +extern int yyintdecimal; /* int token is decimal (1) or octal/hex (0) */ +extern char yytext[]; /* lex input buffer */ +extern int yylineno; /* lex line number */ +extern int yydebug; /* lex debugging */ +extern dt_node_t *yypragma; /* lex token list for control lines */ + +extern const dtrace_attribute_t _dtrace_maxattr; /* maximum attributes */ +extern const dtrace_attribute_t _dtrace_defattr; /* default attributes */ +extern const dtrace_attribute_t _dtrace_symattr; /* symbol ref attributes */ +extern const dtrace_attribute_t _dtrace_typattr; /* type ref attributes */ +extern const dtrace_attribute_t _dtrace_prvattr; /* provider attributes */ +extern const dtrace_pattr_t _dtrace_prvdesc; /* provider attribute bundle */ + +extern const dt_version_t _dtrace_versions[]; /* array of valid versions */ +extern const char *const _dtrace_version; /* current version string */ + +extern int _dtrace_strbuckets; /* number of hash buckets for strings */ +extern int _dtrace_intbuckets; /* number of hash buckets for ints */ +extern uint_t _dtrace_stkindent; /* default indent for stack/ustack */ +extern uint_t _dtrace_pidbuckets; /* number of hash buckets for pids */ +extern uint_t _dtrace_pidlrulim; /* number of proc handles to cache */ +extern int _dtrace_debug; /* debugging messages enabled */ +extern size_t _dtrace_bufsize; /* default dt_buf_create() size */ +extern int _dtrace_argmax; /* default maximum probe arguments */ + +extern const char *_dtrace_libdir; /* default library directory */ +extern const char *_dtrace_moddir; /* default kernel module directory */ + +#ifdef __cplusplus +} +#endif + +#endif /* _DT_IMPL_H */ |