/* * 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 (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. * Copyright (c) 2011, Joyent, Inc. All rights reserved. * Copyright (c) 2011 by Delphix. All rights reserved. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define _POSIX_PTHREAD_SEMANTICS #include #undef _POSIX_PTHREAD_SEMANTICS #include #include #include #include #include #include /* * Stability and versioning definitions. These #defines are used in the tables * of identifiers below to fill in the attribute and version fields associated * with each identifier. The DT_ATTR_* macros are a convenience to permit more * concise declarations of common attributes such as Stable/Stable/Common. The * DT_VERS_* macros declare the encoded integer values of all versions used so * far. DT_VERS_LATEST must correspond to the latest version value among all * versions exported by the D compiler. DT_VERS_STRING must be an ASCII string * that contains DT_VERS_LATEST within it along with any suffixes (e.g. Beta). * You must update DT_VERS_LATEST and DT_VERS_STRING when adding a new version, * and then add the new version to the _dtrace_versions[] array declared below. * Refer to the Solaris Dynamic Tracing Guide Stability and Versioning chapters * respectively for an explanation of these DTrace features and their values. * * NOTE: Although the DTrace versioning scheme supports the labeling and * introduction of incompatible changes (e.g. dropping an interface in a * major release), the libdtrace code does not currently support this. * All versions are assumed to strictly inherit from one another. If * we ever need to provide divergent interfaces, this will need work. */ #define DT_ATTR_STABCMN { DTRACE_STABILITY_STABLE, \ DTRACE_STABILITY_STABLE, DTRACE_CLASS_COMMON } #define DT_ATTR_EVOLCMN { DTRACE_STABILITY_EVOLVING, \ DTRACE_STABILITY_EVOLVING, DTRACE_CLASS_COMMON \ } /* * The version number should be increased for every customer visible release * of Solaris. The major number should be incremented when a fundamental * change has been made that would affect all consumers, and would reflect * sweeping changes to DTrace or the D language. The minor number should be * incremented when a change is introduced that could break scripts that had * previously worked; for example, adding a new built-in variable could break * a script which was already using that identifier. The micro number should * be changed when introducing functionality changes or major bug fixes that * do not affect backward compatibility -- this is merely to make capabilities * easily determined from the version number. Minor bugs do not require any * modification to the version number. */ #define DT_VERS_1_0 DT_VERSION_NUMBER(1, 0, 0) #define DT_VERS_1_1 DT_VERSION_NUMBER(1, 1, 0) #define DT_VERS_1_2 DT_VERSION_NUMBER(1, 2, 0) #define DT_VERS_1_2_1 DT_VERSION_NUMBER(1, 2, 1) #define DT_VERS_1_2_2 DT_VERSION_NUMBER(1, 2, 2) #define DT_VERS_1_3 DT_VERSION_NUMBER(1, 3, 0) #define DT_VERS_1_4 DT_VERSION_NUMBER(1, 4, 0) #define DT_VERS_1_4_1 DT_VERSION_NUMBER(1, 4, 1) #define DT_VERS_1_5 DT_VERSION_NUMBER(1, 5, 0) #define DT_VERS_1_6 DT_VERSION_NUMBER(1, 6, 0) #define DT_VERS_1_6_1 DT_VERSION_NUMBER(1, 6, 1) #define DT_VERS_1_6_2 DT_VERSION_NUMBER(1, 6, 2) #define DT_VERS_1_6_3 DT_VERSION_NUMBER(1, 6, 3) #define DT_VERS_1_7 DT_VERSION_NUMBER(1, 7, 0) #define DT_VERS_1_7_1 DT_VERSION_NUMBER(1, 7, 1) #define DT_VERS_1_8 DT_VERSION_NUMBER(1, 8, 0) #define DT_VERS_1_8_1 DT_VERSION_NUMBER(1, 8, 1) #define DT_VERS_1_9 DT_VERSION_NUMBER(1, 9, 0) #define DT_VERS_LATEST DT_VERS_1_9 #define DT_VERS_STRING "Sun D 1.9" const dt_version_t _dtrace_versions[] = { DT_VERS_1_0, /* D API 1.0.0 (PSARC 2001/466) Solaris 10 FCS */ DT_VERS_1_1, /* D API 1.1.0 Solaris Express 6/05 */ DT_VERS_1_2, /* D API 1.2.0 Solaris 10 Update 1 */ DT_VERS_1_2_1, /* D API 1.2.1 Solaris Express 4/06 */ DT_VERS_1_2_2, /* D API 1.2.2 Solaris Express 6/06 */ DT_VERS_1_3, /* D API 1.3 Solaris Express 10/06 */ DT_VERS_1_4, /* D API 1.4 Solaris Express 2/07 */ DT_VERS_1_4_1, /* D API 1.4.1 Solaris Express 4/07 */ DT_VERS_1_5, /* D API 1.5 Solaris Express 7/07 */ DT_VERS_1_6, /* D API 1.6 */ DT_VERS_1_6_1, /* D API 1.6.1 */ DT_VERS_1_6_2, /* D API 1.6.2 */ DT_VERS_1_6_3, /* D API 1.6.3 */ DT_VERS_1_7, /* D API 1.7 */ DT_VERS_1_7_1, /* D API 1.7.1 */ DT_VERS_1_8, /* D API 1.8 */ DT_VERS_1_8_1, /* D API 1.8.1 */ DT_VERS_1_9, /* D API 1.9 */ 0 }; /* * Table of global identifiers. This is used to populate the global identifier * hash when a new dtrace client open occurs. For more info see dt_ident.h. * The global identifiers that represent functions use the dt_idops_func ops * and specify the private data pointer as a prototype string which is parsed * when the identifier is first encountered. These prototypes look like ANSI * C function prototypes except that the special symbol "@" can be used as a * wildcard to represent a single parameter of any type (i.e. any dt_node_t). * The standard "..." notation can also be used to represent varargs. An empty * parameter list is taken to mean void (that is, no arguments are permitted). * A parameter enclosed in square brackets (e.g. "[int]") denotes an optional * argument. */ static const dt_ident_t _dtrace_globals[] = { { "alloca", DT_IDENT_FUNC, 0, DIF_SUBR_ALLOCA, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_func, "void *(size_t)" }, { "arg0", DT_IDENT_SCALAR, 0, DIF_VAR_ARG0, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "int64_t" }, { "arg1", DT_IDENT_SCALAR, 0, DIF_VAR_ARG1, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "int64_t" }, { "arg2", DT_IDENT_SCALAR, 0, DIF_VAR_ARG2, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "int64_t" }, { "arg3", DT_IDENT_SCALAR, 0, DIF_VAR_ARG3, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "int64_t" }, { "arg4", DT_IDENT_SCALAR, 0, DIF_VAR_ARG4, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "int64_t" }, { "arg5", DT_IDENT_SCALAR, 0, DIF_VAR_ARG5, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "int64_t" }, { "arg6", DT_IDENT_SCALAR, 0, DIF_VAR_ARG6, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "int64_t" }, { "arg7", DT_IDENT_SCALAR, 0, DIF_VAR_ARG7, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "int64_t" }, { "arg8", DT_IDENT_SCALAR, 0, DIF_VAR_ARG8, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "int64_t" }, { "arg9", DT_IDENT_SCALAR, 0, DIF_VAR_ARG9, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "int64_t" }, { "args", DT_IDENT_ARRAY, 0, DIF_VAR_ARGS, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_args, NULL }, { "avg", DT_IDENT_AGGFUNC, 0, DTRACEAGG_AVG, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_func, "void(@)" }, { "basename", DT_IDENT_FUNC, 0, DIF_SUBR_BASENAME, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_func, "string(const char *)" }, { "bcopy", DT_IDENT_FUNC, 0, DIF_SUBR_BCOPY, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_func, "void(void *, void *, size_t)" }, { "breakpoint", DT_IDENT_ACTFUNC, 0, DT_ACT_BREAKPOINT, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_func, "void()" }, { "caller", DT_IDENT_SCALAR, 0, DIF_VAR_CALLER, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "uintptr_t" }, { "chill", DT_IDENT_ACTFUNC, 0, DT_ACT_CHILL, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_func, "void(int)" }, { "cleanpath", DT_IDENT_FUNC, 0, DIF_SUBR_CLEANPATH, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_func, "string(const char *)" }, { "clear", DT_IDENT_ACTFUNC, 0, DT_ACT_CLEAR, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_func, "void(...)" }, { "commit", DT_IDENT_ACTFUNC, 0, DT_ACT_COMMIT, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_func, "void(int)" }, { "copyin", DT_IDENT_FUNC, 0, DIF_SUBR_COPYIN, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_func, "void *(uintptr_t, size_t)" }, { "copyinstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINSTR, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_func, "string(uintptr_t, [size_t])" }, { "copyinto", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINTO, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_func, "void(uintptr_t, size_t, void *)" }, { "copyout", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUT, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_func, "void(void *, uintptr_t, size_t)" }, { "copyoutstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUTSTR, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_func, "void(char *, uintptr_t, size_t)" }, { "count", DT_IDENT_AGGFUNC, 0, DTRACEAGG_COUNT, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_func, "void()" }, { "curthread", DT_IDENT_SCALAR, 0, DIF_VAR_CURTHREAD, { DTRACE_STABILITY_STABLE, DTRACE_STABILITY_PRIVATE, DTRACE_CLASS_COMMON }, DT_VERS_1_0, &dt_idops_type, "genunix`kthread_t *" }, { "ddi_pathname", DT_IDENT_FUNC, 0, DIF_SUBR_DDI_PATHNAME, DT_ATTR_EVOLCMN, DT_VERS_1_0, &dt_idops_func, "string(void *, int64_t)" }, { "denormalize", DT_IDENT_ACTFUNC, 0, DT_ACT_DENORMALIZE, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_func, "void(...)" }, { "dirname", DT_IDENT_FUNC, 0, DIF_SUBR_DIRNAME, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_func, "string(const char *)" }, { "discard", DT_IDENT_ACTFUNC, 0, DT_ACT_DISCARD, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_func, "void(int)" }, { "epid", DT_IDENT_SCALAR, 0, DIF_VAR_EPID, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "uint_t" }, { "errno", DT_IDENT_SCALAR, 0, DIF_VAR_ERRNO, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "int" }, { "execname", DT_IDENT_SCALAR, 0, DIF_VAR_EXECNAME, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, { "exit", DT_IDENT_ACTFUNC, 0, DT_ACT_EXIT, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_func, "void(int)" }, { "freopen", DT_IDENT_ACTFUNC, 0, DT_ACT_FREOPEN, DT_ATTR_STABCMN, DT_VERS_1_1, &dt_idops_func, "void(@, ...)" }, { "ftruncate", DT_IDENT_ACTFUNC, 0, DT_ACT_FTRUNCATE, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_func, "void()" }, { "func", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN, DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, { "getmajor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMAJOR, DT_ATTR_EVOLCMN, DT_VERS_1_0, &dt_idops_func, "genunix`major_t(genunix`dev_t)" }, { "getminor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMINOR, DT_ATTR_EVOLCMN, DT_VERS_1_0, &dt_idops_func, "genunix`minor_t(genunix`dev_t)" }, { "htonl", DT_IDENT_FUNC, 0, DIF_SUBR_HTONL, DT_ATTR_EVOLCMN, DT_VERS_1_3, &dt_idops_func, "uint32_t(uint32_t)" }, { "htonll", DT_IDENT_FUNC, 0, DIF_SUBR_HTONLL, DT_ATTR_EVOLCMN, DT_VERS_1_3, &dt_idops_func, "uint64_t(uint64_t)" }, { "htons", DT_IDENT_FUNC, 0, DIF_SUBR_HTONS, DT_ATTR_EVOLCMN, DT_VERS_1_3, &dt_idops_func, "uint16_t(uint16_t)" }, { "gid", DT_IDENT_SCALAR, 0, DIF_VAR_GID, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "gid_t" }, { "id", DT_IDENT_SCALAR, 0, DIF_VAR_ID, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "uint_t" }, { "index", DT_IDENT_FUNC, 0, DIF_SUBR_INDEX, DT_ATTR_STABCMN, DT_VERS_1_1, &dt_idops_func, "int(const char *, const char *, [int])" }, { "inet_ntoa", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOA, DT_ATTR_STABCMN, DT_VERS_1_5, &dt_idops_func, "string(ipaddr_t *)" }, { "inet_ntoa6", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOA6, DT_ATTR_STABCMN, DT_VERS_1_5, &dt_idops_func, "string(in6_addr_t *)" }, { "inet_ntop", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOP, DT_ATTR_STABCMN, DT_VERS_1_5, &dt_idops_func, "string(int, void *)" }, { "ipl", DT_IDENT_SCALAR, 0, DIF_VAR_IPL, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "uint_t" }, { "jstack", DT_IDENT_ACTFUNC, 0, DT_ACT_JSTACK, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_func, "stack(...)" }, { "lltostr", DT_IDENT_FUNC, 0, DIF_SUBR_LLTOSTR, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_func, "string(int64_t, [int])" }, { "llquantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_LLQUANTIZE, DT_ATTR_STABCMN, DT_VERS_1_7, &dt_idops_func, "void(@, int32_t, int32_t, int32_t, int32_t, ...)" }, { "lquantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_LQUANTIZE, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_func, "void(@, int32_t, int32_t, ...)" }, { "max", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MAX, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_func, "void(@)" }, { "min", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MIN, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_func, "void(@)" }, { "mod", DT_IDENT_ACTFUNC, 0, DT_ACT_MOD, DT_ATTR_STABCMN, DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, { "msgdsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGDSIZE, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_func, "size_t(mblk_t *)" }, { "msgsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGSIZE, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_func, "size_t(mblk_t *)" }, { "mutex_owned", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNED, DT_ATTR_EVOLCMN, DT_VERS_1_0, &dt_idops_func, "int(genunix`kmutex_t *)" }, { "mutex_owner", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNER, DT_ATTR_EVOLCMN, DT_VERS_1_0, &dt_idops_func, "genunix`kthread_t *(genunix`kmutex_t *)" }, { "mutex_type_adaptive", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_ADAPTIVE, DT_ATTR_EVOLCMN, DT_VERS_1_0, &dt_idops_func, "int(genunix`kmutex_t *)" }, { "mutex_type_spin", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_SPIN, DT_ATTR_EVOLCMN, DT_VERS_1_0, &dt_idops_func, "int(genunix`kmutex_t *)" }, { "ntohl", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHL, DT_ATTR_EVOLCMN, DT_VERS_1_3, &dt_idops_func, "uint32_t(uint32_t)" }, { "ntohll", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHLL, DT_ATTR_EVOLCMN, DT_VERS_1_3, &dt_idops_func, "uint64_t(uint64_t)" }, { "ntohs", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHS, DT_ATTR_EVOLCMN, DT_VERS_1_3, &dt_idops_func, "uint16_t(uint16_t)" }, { "normalize", DT_IDENT_ACTFUNC, 0, DT_ACT_NORMALIZE, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_func, "void(...)" }, { "panic", DT_IDENT_ACTFUNC, 0, DT_ACT_PANIC, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_func, "void()" }, { "pid", DT_IDENT_SCALAR, 0, DIF_VAR_PID, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "pid_t" }, { "ppid", DT_IDENT_SCALAR, 0, DIF_VAR_PPID, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "pid_t" }, { "print", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINT, DT_ATTR_STABCMN, DT_VERS_1_9, &dt_idops_func, "void(@)" }, { "printa", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTA, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_func, "void(@, ...)" }, { "printf", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTF, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_func, "void(@, ...)" }, { "probefunc", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEFUNC, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, { "probemod", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEMOD, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, { "probename", DT_IDENT_SCALAR, 0, DIF_VAR_PROBENAME, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, { "probeprov", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEPROV, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, { "progenyof", DT_IDENT_FUNC, 0, DIF_SUBR_PROGENYOF, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_func, "int(pid_t)" }, { "quantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_QUANTIZE, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_func, "void(@, ...)" }, { "raise", DT_IDENT_ACTFUNC, 0, DT_ACT_RAISE, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_func, "void(int)" }, { "rand", DT_IDENT_FUNC, 0, DIF_SUBR_RAND, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_func, "int()" }, { "rindex", DT_IDENT_FUNC, 0, DIF_SUBR_RINDEX, DT_ATTR_STABCMN, DT_VERS_1_1, &dt_idops_func, "int(const char *, const char *, [int])" }, { "rw_iswriter", DT_IDENT_FUNC, 0, DIF_SUBR_RW_ISWRITER, DT_ATTR_EVOLCMN, DT_VERS_1_0, &dt_idops_func, "int(genunix`krwlock_t *)" }, { "rw_read_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_READ_HELD, DT_ATTR_EVOLCMN, DT_VERS_1_0, &dt_idops_func, "int(genunix`krwlock_t *)" }, { "rw_write_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_WRITE_HELD, DT_ATTR_EVOLCMN, DT_VERS_1_0, &dt_idops_func, "int(genunix`krwlock_t *)" }, { "self", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "void" }, { "setopt", DT_IDENT_ACTFUNC, 0, DT_ACT_SETOPT, DT_ATTR_STABCMN, DT_VERS_1_2, &dt_idops_func, "void(const char *, [const char *])" }, { "speculate", DT_IDENT_ACTFUNC, 0, DT_ACT_SPECULATE, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_func, "void(int)" }, { "speculation", DT_IDENT_FUNC, 0, DIF_SUBR_SPECULATION, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_func, "int()" }, { "stack", DT_IDENT_ACTFUNC, 0, DT_ACT_STACK, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_func, "stack(...)" }, { "stackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_STACKDEPTH, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "uint32_t" }, { "stddev", DT_IDENT_AGGFUNC, 0, DTRACEAGG_STDDEV, DT_ATTR_STABCMN, DT_VERS_1_6, &dt_idops_func, "void(@)" }, { "stop", DT_IDENT_ACTFUNC, 0, DT_ACT_STOP, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_func, "void()" }, { "strchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRCHR, DT_ATTR_STABCMN, DT_VERS_1_1, &dt_idops_func, "string(const char *, char)" }, { "strlen", DT_IDENT_FUNC, 0, DIF_SUBR_STRLEN, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_func, "size_t(const char *)" }, { "strjoin", DT_IDENT_FUNC, 0, DIF_SUBR_STRJOIN, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_func, "string(const char *, const char *)" }, { "strrchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRRCHR, DT_ATTR_STABCMN, DT_VERS_1_1, &dt_idops_func, "string(const char *, char)" }, { "strstr", DT_IDENT_FUNC, 0, DIF_SUBR_STRSTR, DT_ATTR_STABCMN, DT_VERS_1_1, &dt_idops_func, "string(const char *, const char *)" }, { "strtok", DT_IDENT_FUNC, 0, DIF_SUBR_STRTOK, DT_ATTR_STABCMN, DT_VERS_1_1, &dt_idops_func, "string(const char *, const char *)" }, { "substr", DT_IDENT_FUNC, 0, DIF_SUBR_SUBSTR, DT_ATTR_STABCMN, DT_VERS_1_1, &dt_idops_func, "string(const char *, int, [int])" }, { "sum", DT_IDENT_AGGFUNC, 0, DTRACEAGG_SUM, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_func, "void(@)" }, { "sym", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN, DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, { "system", DT_IDENT_ACTFUNC, 0, DT_ACT_SYSTEM, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_func, "void(@, ...)" }, { "this", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "void" }, { "tid", DT_IDENT_SCALAR, 0, DIF_VAR_TID, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "id_t" }, { "timestamp", DT_IDENT_SCALAR, 0, DIF_VAR_TIMESTAMP, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "uint64_t" }, { "tolower", DT_IDENT_FUNC, 0, DIF_SUBR_TOLOWER, DT_ATTR_STABCMN, DT_VERS_1_8, &dt_idops_func, "string(const char *)" }, { "toupper", DT_IDENT_FUNC, 0, DIF_SUBR_TOUPPER, DT_ATTR_STABCMN, DT_VERS_1_8, &dt_idops_func, "string(const char *)" }, { "trace", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACE, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_func, "void(@)" }, { "tracemem", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACEMEM, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_func, "void(@, size_t, ...)" }, { "trunc", DT_IDENT_ACTFUNC, 0, DT_ACT_TRUNC, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_func, "void(...)" }, { "uaddr", DT_IDENT_ACTFUNC, 0, DT_ACT_UADDR, DT_ATTR_STABCMN, DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, { "ucaller", DT_IDENT_SCALAR, 0, DIF_VAR_UCALLER, DT_ATTR_STABCMN, DT_VERS_1_2, &dt_idops_type, "uint64_t" }, { "ufunc", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN, DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, { "uid", DT_IDENT_SCALAR, 0, DIF_VAR_UID, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "uid_t" }, { "umod", DT_IDENT_ACTFUNC, 0, DT_ACT_UMOD, DT_ATTR_STABCMN, DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, { "uregs", DT_IDENT_ARRAY, 0, DIF_VAR_UREGS, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_regs, NULL }, { "ustack", DT_IDENT_ACTFUNC, 0, DT_ACT_USTACK, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_func, "stack(...)" }, { "ustackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_USTACKDEPTH, DT_ATTR_STABCMN, DT_VERS_1_2, &dt_idops_type, "uint32_t" }, { "usym", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN, DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, { "vmregs", DT_IDENT_ARRAY, 0, DIF_VAR_VMREGS, DT_ATTR_STABCMN, DT_VERS_1_7, &dt_idops_regs, NULL }, { "vtimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_VTIMESTAMP, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "uint64_t" }, { "walltimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_WALLTIMESTAMP, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "int64_t" }, { "zonename", DT_IDENT_SCALAR, 0, DIF_VAR_ZONENAME, DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, { NULL, 0, 0, 0, { 0, 0, 0 }, 0, NULL, NULL } }; /* * Tables of ILP32 intrinsic integer and floating-point type templates to use * to populate the dynamic "C" CTF type container. */ static const dt_intrinsic_t _dtrace_intrinsics_32[] = { { "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER }, { "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, { "unsigned", { 0, 0, 32 }, CTF_K_INTEGER }, { "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, { "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, { "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, { "long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, { "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, { "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, { "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, { "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, { "signed long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, { "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, { "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, { "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER }, { "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER }, { "unsigned long", { 0, 0, 32 }, CTF_K_INTEGER }, { "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER }, { "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER }, { "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT }, { "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT }, { "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT }, { "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT }, { "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT }, { "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT }, { "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT }, { "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT }, { "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT }, { NULL, { 0, 0, 0 }, 0 } }; /* * Tables of LP64 intrinsic integer and floating-point type templates to use * to populate the dynamic "C" CTF type container. */ static const dt_intrinsic_t _dtrace_intrinsics_64[] = { { "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER }, { "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, { "unsigned", { 0, 0, 32 }, CTF_K_INTEGER }, { "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, { "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, { "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, { "long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, { "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, { "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, { "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, { "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, { "signed long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, { "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, { "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, { "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER }, { "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER }, { "unsigned long", { 0, 0, 64 }, CTF_K_INTEGER }, { "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER }, { "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER }, { "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT }, { "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT }, { "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT }, { "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT }, { "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT }, { "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT }, { "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT }, { "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT }, { "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT }, { NULL, { 0, 0, 0 }, 0 } }; /* * Tables of ILP32 typedefs to use to populate the dynamic "D" CTF container. * These aliases ensure that D definitions can use typical names. */ static const dt_typedef_t _dtrace_typedefs_32[] = { { "char", "int8_t" }, { "short", "int16_t" }, { "int", "int32_t" }, { "long long", "int64_t" }, { "int", "intptr_t" }, { "int", "ssize_t" }, { "unsigned char", "uint8_t" }, { "unsigned short", "uint16_t" }, { "unsigned", "uint32_t" }, { "unsigned long long", "uint64_t" }, { "unsigned char", "uchar_t" }, { "unsigned short", "ushort_t" }, { "unsigned", "uint_t" }, { "unsigned long", "ulong_t" }, { "unsigned long long", "u_longlong_t" }, { "int", "ptrdiff_t" }, { "unsigned", "uintptr_t" }, { "unsigned", "size_t" }, { "long", "id_t" }, { "long", "pid_t" }, { NULL, NULL } }; /* * Tables of LP64 typedefs to use to populate the dynamic "D" CTF container. * These aliases ensure that D definitions can use typical names. */ static const dt_typedef_t _dtrace_typedefs_64[] = { { "char", "int8_t" }, { "short", "int16_t" }, { "int", "int32_t" }, { "long", "int64_t" }, { "long", "intptr_t" }, { "long", "ssize_t" }, { "unsigned char", "uint8_t" }, { "unsigned short", "uint16_t" }, { "unsigned", "uint32_t" }, { "unsigned long", "uint64_t" }, { "unsigned char", "uchar_t" }, { "unsigned short", "ushort_t" }, { "unsigned", "uint_t" }, { "unsigned long", "ulong_t" }, { "unsigned long long", "u_longlong_t" }, { "long", "ptrdiff_t" }, { "unsigned long", "uintptr_t" }, { "unsigned long", "size_t" }, { "int", "id_t" }, { "int", "pid_t" }, { NULL, NULL } }; /* * Tables of ILP32 integer type templates used to populate the dtp->dt_ints[] * cache when a new dtrace client open occurs. Values are set by dtrace_open(). */ static const dt_intdesc_t _dtrace_ints_32[] = { { "int", NULL, CTF_ERR, 0x7fffffffULL }, { "unsigned int", NULL, CTF_ERR, 0xffffffffULL }, { "long", NULL, CTF_ERR, 0x7fffffffULL }, { "unsigned long", NULL, CTF_ERR, 0xffffffffULL }, { "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, { "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL } }; /* * Tables of LP64 integer type templates used to populate the dtp->dt_ints[] * cache when a new dtrace client open occurs. Values are set by dtrace_open(). */ static const dt_intdesc_t _dtrace_ints_64[] = { { "int", NULL, CTF_ERR, 0x7fffffffULL }, { "unsigned int", NULL, CTF_ERR, 0xffffffffULL }, { "long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, { "unsigned long", NULL, CTF_ERR, 0xffffffffffffffffULL }, { "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, { "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL } }; /* * Table of macro variable templates used to populate the macro identifier hash * when a new dtrace client open occurs. Values are set by dtrace_update(). */ static const dt_ident_t _dtrace_macros[] = { { "egid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, { "euid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, { "gid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, { "pid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, { "pgid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, { "ppid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, { "projid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, { "sid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, { "taskid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, { "target", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, { "uid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, { NULL, 0, 0, 0, { 0, 0, 0 }, 0 } }; /* * Hard-wired definition string to be compiled and cached every time a new * DTrace library handle is initialized. This string should only be used to * contain definitions that should be present regardless of DTRACE_O_NOLIBS. */ static const char _dtrace_hardwire[] = "\ inline long NULL = 0; \n\ #pragma D binding \"1.0\" NULL\n\ "; /* * Default DTrace configuration to use when opening libdtrace DTRACE_O_NODEV. * If DTRACE_O_NODEV is not set, we load the configuration from the kernel. * The use of CTF_MODEL_NATIVE is more subtle than it might appear: we are * relying on the fact that when running dtrace(1M), isaexec will invoke the * binary with the same bitness as the kernel, which is what we want by default * when generating our DIF. The user can override the choice using oflags. */ static const dtrace_conf_t _dtrace_conf = { DIF_VERSION, /* dtc_difversion */ DIF_DIR_NREGS, /* dtc_difintregs */ DIF_DTR_NREGS, /* dtc_diftupregs */ CTF_MODEL_NATIVE /* dtc_ctfmodel */ }; const dtrace_attribute_t _dtrace_maxattr = { DTRACE_STABILITY_MAX, DTRACE_STABILITY_MAX, DTRACE_CLASS_MAX }; const dtrace_attribute_t _dtrace_defattr = { DTRACE_STABILITY_STABLE, DTRACE_STABILITY_STABLE, DTRACE_CLASS_COMMON }; const dtrace_attribute_t _dtrace_symattr = { DTRACE_STABILITY_PRIVATE, DTRACE_STABILITY_PRIVATE, DTRACE_CLASS_UNKNOWN }; const dtrace_attribute_t _dtrace_typattr = { DTRACE_STABILITY_PRIVATE, DTRACE_STABILITY_PRIVATE, DTRACE_CLASS_UNKNOWN }; const dtrace_attribute_t _dtrace_prvattr = { DTRACE_STABILITY_PRIVATE, DTRACE_STABILITY_PRIVATE, DTRACE_CLASS_UNKNOWN }; const dtrace_pattr_t _dtrace_prvdesc = { { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, }; const char *_dtrace_defcpp = "/usr/ccs/lib/cpp"; /* default cpp(1) to invoke */ const char *_dtrace_defld = "/usr/ccs/bin/ld"; /* default ld(1) to invoke */ const char *_dtrace_libdir = "/usr/lib/dtrace"; /* default library directory */ const char *_dtrace_provdir = "/dev/dtrace/provider"; /* provider directory */ int _dtrace_strbuckets = 211; /* default number of hash buckets (prime) */ int _dtrace_intbuckets = 256; /* default number of integer buckets (Pof2) */ uint_t _dtrace_strsize = 256; /* default size of string intrinsic type */ uint_t _dtrace_stkindent = 14; /* default whitespace indent for stack/ustack */ uint_t _dtrace_pidbuckets = 64; /* default number of pid hash buckets */ uint_t _dtrace_pidlrulim = 8; /* default number of pid handles to cache */ size_t _dtrace_bufsize = 512; /* default dt_buf_create() size */ int _dtrace_argmax = 32; /* default maximum number of probe arguments */ int _dtrace_debug = 0; /* debug messages enabled (off) */ const char *const _dtrace_version = DT_VERS_STRING; /* API version string */ int _dtrace_rdvers = RD_VERSION; /* rtld_db feature version */ typedef struct dt_fdlist { int *df_fds; /* array of provider driver file descriptors */ uint_t df_ents; /* number of valid elements in df_fds[] */ uint_t df_size; /* size of df_fds[] */ } dt_fdlist_t; #pragma init(_dtrace_init) void _dtrace_init(void) { _dtrace_debug = getenv("DTRACE_DEBUG") != NULL; for (; _dtrace_rdvers > 0; _dtrace_rdvers--) { if (rd_init(_dtrace_rdvers) == RD_OK) break; } } static dtrace_hdl_t * set_open_errno(dtrace_hdl_t *dtp, int *errp, int err) { if (dtp != NULL) dtrace_close(dtp); if (errp != NULL) *errp = err; return (NULL); } static void dt_provmod_open(dt_provmod_t **provmod, dt_fdlist_t *dfp) { dt_provmod_t *prov; char path[PATH_MAX]; struct dirent *dp, *ep; DIR *dirp; int fd; if ((dirp = opendir(_dtrace_provdir)) == NULL) return; /* failed to open directory; just skip it */ ep = alloca(sizeof (struct dirent) + PATH_MAX + 1); bzero(ep, sizeof (struct dirent) + PATH_MAX + 1); while (readdir_r(dirp, ep, &dp) == 0 && dp != NULL) { if (dp->d_name[0] == '.') continue; /* skip "." and ".." */ if (dfp->df_ents == dfp->df_size) { uint_t size = dfp->df_size ? dfp->df_size * 2 : 16; int *fds = realloc(dfp->df_fds, size * sizeof (int)); if (fds == NULL) break; /* skip the rest of this directory */ dfp->df_fds = fds; dfp->df_size = size; } (void) snprintf(path, sizeof (path), "%s/%s", _dtrace_provdir, dp->d_name); if ((fd = open(path, O_RDONLY)) == -1) continue; /* failed to open driver; just skip it */ if (((prov = malloc(sizeof (dt_provmod_t))) == NULL) || (prov->dp_name = malloc(strlen(dp->d_name) + 1)) == NULL) { free(prov); (void) close(fd); break; } (void) strcpy(prov->dp_name, dp->d_name); prov->dp_next = *provmod; *provmod = prov; dt_dprintf("opened provider %s\n", dp->d_name); dfp->df_fds[dfp->df_ents++] = fd; } (void) closedir(dirp); } static void dt_provmod_destroy(dt_provmod_t **provmod) { dt_provmod_t *next, *current; for (current = *provmod; current != NULL; current = next) { next = current->dp_next; free(current->dp_name); free(current); } *provmod = NULL; } static const char * dt_get_sysinfo(int cmd, char *buf, size_t len) { ssize_t rv = sysinfo(cmd, buf, len); char *p = buf; if (rv < 0 || rv > len) (void) snprintf(buf, len, "%s", "Unknown"); while ((p = strchr(p, '.')) != NULL) *p++ = '_'; return (buf); } static dtrace_hdl_t * dt_vopen(int version, int flags, int *errp, const dtrace_vector_t *vector, void *arg) { dtrace_hdl_t *dtp = NULL; int dtfd = -1, ftfd = -1, fterr = 0; dtrace_prog_t *pgp; dt_module_t *dmp; dt_provmod_t *provmod = NULL; int i, err; struct rlimit rl; const dt_intrinsic_t *dinp; const dt_typedef_t *dtyp; const dt_ident_t *idp; dtrace_typeinfo_t dtt; ctf_funcinfo_t ctc; ctf_arinfo_t ctr; dt_fdlist_t df = { NULL, 0, 0 }; char isadef[32], utsdef[32]; char s1[64], s2[64]; if (version <= 0) return (set_open_errno(dtp, errp, EINVAL)); if (version > DTRACE_VERSION) return (set_open_errno(dtp, errp, EDT_VERSION)); if (version < DTRACE_VERSION) { /* * Currently, increasing the library version number is used to * denote a binary incompatible change. That is, a consumer * of the library cannot run on a version of the library with * a higher DTRACE_VERSION number than the consumer compiled * against. Once the library API has been committed to, * backwards binary compatibility will be required; at that * time, this check should change to return EDT_OVERSION only * if the specified version number is less than the version * number at the time of interface commitment. */ return (set_open_errno(dtp, errp, EDT_OVERSION)); } if (flags & ~DTRACE_O_MASK) return (set_open_errno(dtp, errp, EINVAL)); if ((flags & DTRACE_O_LP64) && (flags & DTRACE_O_ILP32)) return (set_open_errno(dtp, errp, EINVAL)); if (vector == NULL && arg != NULL) return (set_open_errno(dtp, errp, EINVAL)); if (elf_version(EV_CURRENT) == EV_NONE) return (set_open_errno(dtp, errp, EDT_ELFVERSION)); if (vector != NULL || (flags & DTRACE_O_NODEV)) goto alloc; /* do not attempt to open dtrace device */ /* * Before we get going, crank our limit on file descriptors up to the * hard limit. This is to allow for the fact that libproc keeps file * descriptors to objects open for the lifetime of the proc handle; * without raising our hard limit, we would have an acceptably small * bound on the number of processes that we could concurrently * instrument with the pid provider. */ if (getrlimit(RLIMIT_NOFILE, &rl) == 0) { rl.rlim_cur = rl.rlim_max; (void) setrlimit(RLIMIT_NOFILE, &rl); } /* * Get the device path of each of the providers. We hold them open * in the df.df_fds list until we open the DTrace driver itself, * allowing us to see all of the probes provided on this system. Once * we have the DTrace driver open, we can safely close all the providers * now that they have registered with the framework. */ dt_provmod_open(&provmod, &df); dtfd = open("/dev/dtrace/dtrace", O_RDWR); err = errno; /* save errno from opening dtfd */ ftfd = open("/dev/dtrace/provider/fasttrap", O_RDWR); fterr = ftfd == -1 ? errno : 0; /* save errno from open ftfd */ while (df.df_ents-- != 0) (void) close(df.df_fds[df.df_ents]); free(df.df_fds); /* * If we failed to open the dtrace device, fail dtrace_open(). * We convert some kernel errnos to custom libdtrace errnos to * improve the resulting message from the usual strerror(). */ if (dtfd == -1) { dt_provmod_destroy(&provmod); switch (err) { case ENOENT: err = EDT_NOENT; break; case EBUSY: err = EDT_BUSY; break; case EACCES: err = EDT_ACCESS; break; } return (set_open_errno(dtp, errp, err)); } (void) fcntl(dtfd, F_SETFD, FD_CLOEXEC); (void) fcntl(ftfd, F_SETFD, FD_CLOEXEC); alloc: if ((dtp = malloc(sizeof (dtrace_hdl_t))) == NULL) return (set_open_errno(dtp, errp, EDT_NOMEM)); bzero(dtp, sizeof (dtrace_hdl_t)); dtp->dt_oflags = flags; dtp->dt_prcmode = DT_PROC_STOP_PREINIT; dtp->dt_linkmode = DT_LINK_KERNEL; dtp->dt_linktype = DT_LTYP_ELF; dtp->dt_xlatemode = DT_XL_STATIC; dtp->dt_stdcmode = DT_STDC_XA; dtp->dt_version = version; dtp->dt_fd = dtfd; dtp->dt_ftfd = ftfd; dtp->dt_fterr = fterr; dtp->dt_cdefs_fd = -1; dtp->dt_ddefs_fd = -1; dtp->dt_stdout_fd = -1; dtp->dt_modbuckets = _dtrace_strbuckets; dtp->dt_mods = calloc(dtp->dt_modbuckets, sizeof (dt_module_t *)); dtp->dt_provbuckets = _dtrace_strbuckets; dtp->dt_provs = calloc(dtp->dt_provbuckets, sizeof (dt_provider_t *)); dt_proc_hash_create(dtp); dtp->dt_vmax = DT_VERS_LATEST; dtp->dt_cpp_path = strdup(_dtrace_defcpp); dtp->dt_cpp_argv = malloc(sizeof (char *)); dtp->dt_cpp_argc = 1; dtp->dt_cpp_args = 1; dtp->dt_ld_path = strdup(_dtrace_defld); dtp->dt_provmod = provmod; dtp->dt_vector = vector; dtp->dt_varg = arg; dt_dof_init(dtp); (void) uname(&dtp->dt_uts); if (dtp->dt_mods == NULL || dtp->dt_provs == NULL || dtp->dt_procs == NULL || dtp->dt_ld_path == NULL || dtp->dt_cpp_path == NULL || dtp->dt_cpp_argv == NULL) return (set_open_errno(dtp, errp, EDT_NOMEM)); for (i = 0; i < DTRACEOPT_MAX; i++) dtp->dt_options[i] = DTRACEOPT_UNSET; dtp->dt_cpp_argv[0] = (char *)strbasename(dtp->dt_cpp_path); (void) snprintf(isadef, sizeof (isadef), "-D__SUNW_D_%u", (uint_t)(sizeof (void *) * NBBY)); (void) snprintf(utsdef, sizeof (utsdef), "-D__%s_%s", dt_get_sysinfo(SI_SYSNAME, s1, sizeof (s1)), dt_get_sysinfo(SI_RELEASE, s2, sizeof (s2))); if (dt_cpp_add_arg(dtp, "-D__sun") == NULL || dt_cpp_add_arg(dtp, "-D__unix") == NULL || dt_cpp_add_arg(dtp, "-D__SVR4") == NULL || dt_cpp_add_arg(dtp, "-D__SUNW_D=1") == NULL || dt_cpp_add_arg(dtp, isadef) == NULL || dt_cpp_add_arg(dtp, utsdef) == NULL) return (set_open_errno(dtp, errp, EDT_NOMEM)); if (flags & DTRACE_O_NODEV) bcopy(&_dtrace_conf, &dtp->dt_conf, sizeof (_dtrace_conf)); else if (dt_ioctl(dtp, DTRACEIOC_CONF, &dtp->dt_conf) != 0) return (set_open_errno(dtp, errp, errno)); if (flags & DTRACE_O_LP64) dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_LP64; else if (flags & DTRACE_O_ILP32) dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_ILP32; #ifdef __sparc /* * On SPARC systems, __sparc is always defined for * and __sparcv9 is defined if we are doing a 64-bit compile. */ if (dt_cpp_add_arg(dtp, "-D__sparc") == NULL) return (set_open_errno(dtp, errp, EDT_NOMEM)); if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64 && dt_cpp_add_arg(dtp, "-D__sparcv9") == NULL) return (set_open_errno(dtp, errp, EDT_NOMEM)); #endif #ifdef __x86 /* * On x86 systems, __i386 is defined for for 32-bit * compiles and __amd64 is defined for 64-bit compiles. Unlike SPARC, * they are defined exclusive of one another (see PSARC 2004/619). */ if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64) { if (dt_cpp_add_arg(dtp, "-D__amd64") == NULL) return (set_open_errno(dtp, errp, EDT_NOMEM)); } else { if (dt_cpp_add_arg(dtp, "-D__i386") == NULL) return (set_open_errno(dtp, errp, EDT_NOMEM)); } #endif if (dtp->dt_conf.dtc_difversion < DIF_VERSION) return (set_open_errno(dtp, errp, EDT_DIFVERS)); if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32) bcopy(_dtrace_ints_32, dtp->dt_ints, sizeof (_dtrace_ints_32)); else bcopy(_dtrace_ints_64, dtp->dt_ints, sizeof (_dtrace_ints_64)); dtp->dt_macros = dt_idhash_create("macro", NULL, 0, UINT_MAX); dtp->dt_aggs = dt_idhash_create("aggregation", NULL, DTRACE_AGGVARIDNONE + 1, UINT_MAX); dtp->dt_globals = dt_idhash_create("global", _dtrace_globals, DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX); dtp->dt_tls = dt_idhash_create("thread local", NULL, DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX); if (dtp->dt_macros == NULL || dtp->dt_aggs == NULL || dtp->dt_globals == NULL || dtp->dt_tls == NULL) return (set_open_errno(dtp, errp, EDT_NOMEM)); /* * Populate the dt_macros identifier hash table by hand: we can't use * the dt_idhash_populate() mechanism because we're not yet compiling * and dtrace_update() needs to immediately reference these idents. */ for (idp = _dtrace_macros; idp->di_name != NULL; idp++) { if (dt_idhash_insert(dtp->dt_macros, idp->di_name, idp->di_kind, idp->di_flags, idp->di_id, idp->di_attr, idp->di_vers, idp->di_ops ? idp->di_ops : &dt_idops_thaw, idp->di_iarg, 0) == NULL) return (set_open_errno(dtp, errp, EDT_NOMEM)); } /* * Update the module list using /system/object and load the values for * the macro variable definitions according to the current process. */ dtrace_update(dtp); /* * Select the intrinsics and typedefs we want based on the data model. * The intrinsics are under "C". The typedefs are added under "D". */ if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32) { dinp = _dtrace_intrinsics_32; dtyp = _dtrace_typedefs_32; } else { dinp = _dtrace_intrinsics_64; dtyp = _dtrace_typedefs_64; } /* * Create a dynamic CTF container under the "C" scope for intrinsic * types and types defined in ANSI-C header files that are included. */ if ((dmp = dtp->dt_cdefs = dt_module_create(dtp, "C")) == NULL) return (set_open_errno(dtp, errp, EDT_NOMEM)); if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL) return (set_open_errno(dtp, errp, EDT_CTF)); dt_dprintf("created CTF container for %s (%p)\n", dmp->dm_name, (void *)dmp->dm_ctfp); (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel); ctf_setspecific(dmp->dm_ctfp, dmp); dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */ dmp->dm_modid = -1; /* no module ID */ /* * Fill the dynamic "C" CTF container with all of the intrinsic * integer and floating-point types appropriate for this data model. */ for (; dinp->din_name != NULL; dinp++) { if (dinp->din_kind == CTF_K_INTEGER) { err = ctf_add_integer(dmp->dm_ctfp, CTF_ADD_ROOT, dinp->din_name, &dinp->din_data); } else { err = ctf_add_float(dmp->dm_ctfp, CTF_ADD_ROOT, dinp->din_name, &dinp->din_data); } if (err == CTF_ERR) { dt_dprintf("failed to add %s to C container: %s\n", dinp->din_name, ctf_errmsg( ctf_errno(dmp->dm_ctfp))); return (set_open_errno(dtp, errp, EDT_CTF)); } } if (ctf_update(dmp->dm_ctfp) != 0) { dt_dprintf("failed to update C container: %s\n", ctf_errmsg(ctf_errno(dmp->dm_ctfp))); return (set_open_errno(dtp, errp, EDT_CTF)); } /* * Add intrinsic pointer types that are needed to initialize printf * format dictionary types (see table in dt_printf.c). */ (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, ctf_lookup_by_name(dmp->dm_ctfp, "void")); (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, ctf_lookup_by_name(dmp->dm_ctfp, "char")); (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, ctf_lookup_by_name(dmp->dm_ctfp, "int")); if (ctf_update(dmp->dm_ctfp) != 0) { dt_dprintf("failed to update C container: %s\n", ctf_errmsg(ctf_errno(dmp->dm_ctfp))); return (set_open_errno(dtp, errp, EDT_CTF)); } /* * Create a dynamic CTF container under the "D" scope for types that * are defined by the D program itself or on-the-fly by the D compiler. * The "D" CTF container is a child of the "C" CTF container. */ if ((dmp = dtp->dt_ddefs = dt_module_create(dtp, "D")) == NULL) return (set_open_errno(dtp, errp, EDT_NOMEM)); if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL) return (set_open_errno(dtp, errp, EDT_CTF)); dt_dprintf("created CTF container for %s (%p)\n", dmp->dm_name, (void *)dmp->dm_ctfp); (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel); ctf_setspecific(dmp->dm_ctfp, dmp); dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */ dmp->dm_modid = -1; /* no module ID */ if (ctf_import(dmp->dm_ctfp, dtp->dt_cdefs->dm_ctfp) == CTF_ERR) { dt_dprintf("failed to import D parent container: %s\n", ctf_errmsg(ctf_errno(dmp->dm_ctfp))); return (set_open_errno(dtp, errp, EDT_CTF)); } /* * Fill the dynamic "D" CTF container with all of the built-in typedefs * that we need to use for our D variable and function definitions. * This ensures that basic inttypes.h names are always available to us. */ for (; dtyp->dty_src != NULL; dtyp++) { if (ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, dtyp->dty_dst, ctf_lookup_by_name(dmp->dm_ctfp, dtyp->dty_src)) == CTF_ERR) { dt_dprintf("failed to add typedef %s %s to D " "container: %s", dtyp->dty_src, dtyp->dty_dst, ctf_errmsg(ctf_errno(dmp->dm_ctfp))); return (set_open_errno(dtp, errp, EDT_CTF)); } } /* * Insert a CTF ID corresponding to a pointer to a type of kind * CTF_K_FUNCTION we can use in the compiler for function pointers. * CTF treats all function pointers as "int (*)()" so we only need one. */ ctc.ctc_return = ctf_lookup_by_name(dmp->dm_ctfp, "int"); ctc.ctc_argc = 0; ctc.ctc_flags = 0; dtp->dt_type_func = ctf_add_function(dmp->dm_ctfp, CTF_ADD_ROOT, &ctc, NULL); dtp->dt_type_fptr = ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, dtp->dt_type_func); /* * We also insert CTF definitions for the special D intrinsic types * string and into the D container. The string type is added * as a typedef of char[n]. The type is an alias for void. * We compare types to these special CTF ids throughout the compiler. */ ctr.ctr_contents = ctf_lookup_by_name(dmp->dm_ctfp, "char"); ctr.ctr_index = ctf_lookup_by_name(dmp->dm_ctfp, "long"); ctr.ctr_nelems = _dtrace_strsize; dtp->dt_type_str = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, "string", ctf_add_array(dmp->dm_ctfp, CTF_ADD_ROOT, &ctr)); dtp->dt_type_dyn = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, "", ctf_lookup_by_name(dmp->dm_ctfp, "void")); dtp->dt_type_stack = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, "stack", ctf_lookup_by_name(dmp->dm_ctfp, "void")); dtp->dt_type_symaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, "_symaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void")); dtp->dt_type_usymaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, "_usymaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void")); if (dtp->dt_type_func == CTF_ERR || dtp->dt_type_fptr == CTF_ERR || dtp->dt_type_str == CTF_ERR || dtp->dt_type_dyn == CTF_ERR || dtp->dt_type_stack == CTF_ERR || dtp->dt_type_symaddr == CTF_ERR || dtp->dt_type_usymaddr == CTF_ERR) { dt_dprintf("failed to add intrinsic to D container: %s\n", ctf_errmsg(ctf_errno(dmp->dm_ctfp))); return (set_open_errno(dtp, errp, EDT_CTF)); } if (ctf_update(dmp->dm_ctfp) != 0) { dt_dprintf("failed update D container: %s\n", ctf_errmsg(ctf_errno(dmp->dm_ctfp))); return (set_open_errno(dtp, errp, EDT_CTF)); } /* * Initialize the integer description table used to convert integer * constants to the appropriate types. Refer to the comments above * dt_node_int() for a complete description of how this table is used. */ for (i = 0; i < sizeof (dtp->dt_ints) / sizeof (dtp->dt_ints[0]); i++) { if (dtrace_lookup_by_type(dtp, DTRACE_OBJ_EVERY, dtp->dt_ints[i].did_name, &dtt) != 0) { dt_dprintf("failed to lookup integer type %s: %s\n", dtp->dt_ints[i].did_name, dtrace_errmsg(dtp, dtrace_errno(dtp))); return (set_open_errno(dtp, errp, dtp->dt_errno)); } dtp->dt_ints[i].did_ctfp = dtt.dtt_ctfp; dtp->dt_ints[i].did_type = dtt.dtt_type; } /* * Now that we've created the "C" and "D" containers, move them to the * start of the module list so that these types and symbols are found * first (for stability) when iterating through the module list. */ dt_list_delete(&dtp->dt_modlist, dtp->dt_ddefs); dt_list_prepend(&dtp->dt_modlist, dtp->dt_ddefs); dt_list_delete(&dtp->dt_modlist, dtp->dt_cdefs); dt_list_prepend(&dtp->dt_modlist, dtp->dt_cdefs); if (dt_pfdict_create(dtp) == -1) return (set_open_errno(dtp, errp, dtp->dt_errno)); /* * If we are opening libdtrace DTRACE_O_NODEV enable C_ZDEFS by default * because without /dev/dtrace open, we will not be able to load the * names and attributes of any providers or probes from the kernel. */ if (flags & DTRACE_O_NODEV) dtp->dt_cflags |= DTRACE_C_ZDEFS; /* * Load hard-wired inlines into the definition cache by calling the * compiler on the raw definition string defined above. */ if ((pgp = dtrace_program_strcompile(dtp, _dtrace_hardwire, DTRACE_PROBESPEC_NONE, DTRACE_C_EMPTY, 0, NULL)) == NULL) { dt_dprintf("failed to load hard-wired definitions: %s\n", dtrace_errmsg(dtp, dtrace_errno(dtp))); return (set_open_errno(dtp, errp, EDT_HARDWIRE)); } dt_program_destroy(dtp, pgp); /* * Set up the default DTrace library path. Once set, the next call to * dt_compile() will compile all the libraries. We intentionally defer * library processing to improve overhead for clients that don't ever * compile, and to provide better error reporting (because the full * reporting of compiler errors requires dtrace_open() to succeed). */ if (dtrace_setopt(dtp, "libdir", _dtrace_libdir) != 0) return (set_open_errno(dtp, errp, dtp->dt_errno)); return (dtp); } dtrace_hdl_t * dtrace_open(int version, int flags, int *errp) { return (dt_vopen(version, flags, errp, NULL, NULL)); } dtrace_hdl_t * dtrace_vopen(int version, int flags, int *errp, const dtrace_vector_t *vector, void *arg) { return (dt_vopen(version, flags, errp, vector, arg)); } void dtrace_close(dtrace_hdl_t *dtp) { dt_ident_t *idp, *ndp; dt_module_t *dmp; dt_provider_t *pvp; dtrace_prog_t *pgp; dt_xlator_t *dxp; dt_dirpath_t *dirp; int i; if (dtp->dt_procs != NULL) dt_proc_hash_destroy(dtp); while ((pgp = dt_list_next(&dtp->dt_programs)) != NULL) dt_program_destroy(dtp, pgp); while ((dxp = dt_list_next(&dtp->dt_xlators)) != NULL) dt_xlator_destroy(dtp, dxp); dt_free(dtp, dtp->dt_xlatormap); for (idp = dtp->dt_externs; idp != NULL; idp = ndp) { ndp = idp->di_next; dt_ident_destroy(idp); } if (dtp->dt_macros != NULL) dt_idhash_destroy(dtp->dt_macros); if (dtp->dt_aggs != NULL) dt_idhash_destroy(dtp->dt_aggs); if (dtp->dt_globals != NULL) dt_idhash_destroy(dtp->dt_globals); if (dtp->dt_tls != NULL) dt_idhash_destroy(dtp->dt_tls); while ((dmp = dt_list_next(&dtp->dt_modlist)) != NULL) dt_module_destroy(dtp, dmp); while ((pvp = dt_list_next(&dtp->dt_provlist)) != NULL) dt_provider_destroy(dtp, pvp); if (dtp->dt_fd != -1) (void) close(dtp->dt_fd); if (dtp->dt_ftfd != -1) (void) close(dtp->dt_ftfd); if (dtp->dt_cdefs_fd != -1) (void) close(dtp->dt_cdefs_fd); if (dtp->dt_ddefs_fd != -1) (void) close(dtp->dt_ddefs_fd); if (dtp->dt_stdout_fd != -1) (void) close(dtp->dt_stdout_fd); dt_epid_destroy(dtp); dt_aggid_destroy(dtp); dt_format_destroy(dtp); dt_strdata_destroy(dtp); dt_buffered_destroy(dtp); dt_aggregate_destroy(dtp); free(dtp->dt_buf.dtbd_data); dt_pfdict_destroy(dtp); dt_provmod_destroy(&dtp->dt_provmod); dt_dof_fini(dtp); for (i = 1; i < dtp->dt_cpp_argc; i++) free(dtp->dt_cpp_argv[i]); while ((dirp = dt_list_next(&dtp->dt_lib_path)) != NULL) { dt_list_delete(&dtp->dt_lib_path, dirp); free(dirp->dir_path); free(dirp); } free(dtp->dt_cpp_argv); free(dtp->dt_cpp_path); free(dtp->dt_ld_path); free(dtp->dt_mods); free(dtp->dt_provs); free(dtp); } int dtrace_provider_modules(dtrace_hdl_t *dtp, const char **mods, int nmods) { dt_provmod_t *prov; int i = 0; for (prov = dtp->dt_provmod; prov != NULL; prov = prov->dp_next, i++) { if (i < nmods) mods[i] = prov->dp_name; } return (i); } int dtrace_ctlfd(dtrace_hdl_t *dtp) { return (dtp->dt_fd); }