diff options
Diffstat (limited to 'lib/libdtrace/common/dt_open.c')
| -rw-r--r-- | lib/libdtrace/common/dt_open.c | 1643 |
1 files changed, 1643 insertions, 0 deletions
diff --git a/lib/libdtrace/common/dt_open.c b/lib/libdtrace/common/dt_open.c new file mode 100644 index 000000000000..ec7dec090533 --- /dev/null +++ b/lib/libdtrace/common/dt_open.c @@ -0,0 +1,1643 @@ +/* + * 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. + */ + +#pragma ident "%Z%%M% %I% %E% SMI" + +#include <sys/types.h> +#if defined(sun) +#include <sys/modctl.h> +#include <sys/systeminfo.h> +#endif +#include <sys/resource.h> + +#include <libelf.h> +#include <strings.h> +#if defined(sun) +#include <alloca.h> +#endif +#include <limits.h> +#include <unistd.h> +#include <stdlib.h> +#include <stdio.h> +#include <fcntl.h> +#include <errno.h> +#include <assert.h> + +#define _POSIX_PTHREAD_SEMANTICS +#include <dirent.h> +#undef _POSIX_PTHREAD_SEMANTICS + +#include <dt_impl.h> +#include <dt_program.h> +#include <dt_module.h> +#include <dt_printf.h> +#include <dt_string.h> +#include <dt_provider.h> +#if !defined(sun) +#include <sys/sysctl.h> +#include <string.h> +#endif +#if defined(__i386__) +#include <ieeefp.h> +#endif + +/* + * 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_LATEST DT_VERS_1_6_1 +#define DT_VERS_STRING "Sun D 1.6.1" + +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 */ + 0 +}; + +/* + * Global variables that are formatted on FreeBSD based on the kernel file name. + */ +#if !defined(sun) +static char curthread_str[MAXPATHLEN]; +static char intmtx_str[MAXPATHLEN]; +static char threadmtx_str[MAXPATHLEN]; +static char rwlock_str[MAXPATHLEN]; +static char sxlock_str[MAXPATHLEN]; +#endif + +/* + * 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, +#if defined(sun) + &dt_idops_type, "genunix`kthread_t *" }, +#else + &dt_idops_type, curthread_str }, +#endif +{ "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" }, +{ "execargs", DT_IDENT_SCALAR, 0, DIF_VAR_EXECARGS, + DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, +{ "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, +#if defined(sun) + DT_VERS_1_5, &dt_idops_func, "string(ipaddr_t *)" }, +#else + DT_VERS_1_5, &dt_idops_func, "string(in_addr_t *)" }, +#endif +{ "inet_ntoa6", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOA6, DT_ATTR_STABCMN, +#if defined(sun) + DT_VERS_1_5, &dt_idops_func, "string(in6_addr_t *)" }, +#else + DT_VERS_1_5, &dt_idops_func, "string(struct in6_addr *)" }, +#endif +{ "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" }, +#if defined(sun) +{ "jstack", DT_IDENT_ACTFUNC, 0, DT_ACT_JSTACK, DT_ATTR_STABCMN, DT_VERS_1_0, + &dt_idops_func, "stack(...)" }, +#endif +{ "lltostr", DT_IDENT_FUNC, 0, DIF_SUBR_LLTOSTR, DT_ATTR_STABCMN, DT_VERS_1_0, + &dt_idops_func, "string(int64_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(@)" }, +{ "memref", DT_IDENT_FUNC, 0, DIF_SUBR_MEMREF, DT_ATTR_STABCMN, DT_VERS_1_1, + &dt_idops_func, "uintptr_t *(void *, size_t)" }, +{ "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 *)" }, +#if defined(sun) +{ "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 *)" }, +#else +{ "mutex_owned", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNED, + DT_ATTR_EVOLCMN, DT_VERS_1_0, + &dt_idops_func, intmtx_str }, +{ "mutex_owner", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNER, + DT_ATTR_EVOLCMN, DT_VERS_1_0, + &dt_idops_func, threadmtx_str }, +{ "mutex_type_adaptive", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_ADAPTIVE, + DT_ATTR_EVOLCMN, DT_VERS_1_0, + &dt_idops_func, intmtx_str }, +{ "mutex_type_spin", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_SPIN, + DT_ATTR_EVOLCMN, DT_VERS_1_0, + &dt_idops_func, intmtx_str }, +#endif +{ "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" }, +{ "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(@, ...)" }, +{ "printm", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTM, DT_ATTR_STABCMN, DT_VERS_1_0, + &dt_idops_func, "void(size_t, uintptr_t *)" }, +{ "printt", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTT, DT_ATTR_STABCMN, DT_VERS_1_0, + &dt_idops_func, "void(size_t, uintptr_t *)" }, +{ "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])" }, +#if defined(sun) +{ "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 *)" }, +#else +{ "rw_iswriter", DT_IDENT_FUNC, 0, DIF_SUBR_RW_ISWRITER, + DT_ATTR_EVOLCMN, DT_VERS_1_0, + &dt_idops_func, rwlock_str }, +{ "rw_read_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_READ_HELD, + DT_ATTR_EVOLCMN, DT_VERS_1_0, + &dt_idops_func, rwlock_str }, +{ "rw_write_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_WRITE_HELD, + DT_ATTR_EVOLCMN, DT_VERS_1_0, + &dt_idops_func, rwlock_str }, +#endif +{ "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(@)" }, +#if !defined(sun) +{ "sx_isexclusive", DT_IDENT_FUNC, 0, DIF_SUBR_SX_ISEXCLUSIVE, + DT_ATTR_EVOLCMN, DT_VERS_1_0, + &dt_idops_func, sxlock_str }, +{ "sx_shared_held", DT_IDENT_FUNC, 0, DIF_SUBR_SX_SHARED_HELD, + DT_ATTR_EVOLCMN, DT_VERS_1_0, + &dt_idops_func, sxlock_str }, +{ "sx_exclusive_held", DT_IDENT_FUNC, 0, DIF_SUBR_SX_EXCLUSIVE_HELD, + DT_ATTR_EVOLCMN, DT_VERS_1_0, + &dt_idops_func, sxlock_str }, +#endif +{ "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" }, +{ "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(...)" }, +{ "typeref", DT_IDENT_FUNC, 0, DIF_SUBR_TYPEREF, DT_ATTR_STABCMN, DT_VERS_1_1, + &dt_idops_func, "uintptr_t *(void *, size_t, string, size_t)" }, +#if defined(sun) +{ "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)" }, +#endif +{ "uid", DT_IDENT_SCALAR, 0, DIF_VAR_UID, DT_ATTR_STABCMN, DT_VERS_1_0, + &dt_idops_type, "uid_t" }, +#if defined(sun) +{ "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)" }, +#endif +{ "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" }, +#if defined(sun) +{ "zonename", DT_IDENT_SCALAR, 0, DIF_VAR_ZONENAME, + DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, +#endif +{ 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 <sys/types.h> 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 <sys/types.h> 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 }, +}; + +#if defined(sun) +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 */ +#else +const char *_dtrace_defcpp = "cpp"; /* default cpp(1) to invoke */ +const char *_dtrace_defld = "ld"; /* default ld(1) to invoke */ +#endif + +const char *_dtrace_libdir = "/usr/lib/dtrace"; /* default library directory */ +#if defined(sun) +const char *_dtrace_provdir = "/dev/dtrace/provider"; /* provider directory */ +#else +const char *_dtrace_provdir = "/dev/dtrace"; /* provider directory */ +#endif + +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 */ +#if defined(sun) +int _dtrace_rdvers = RD_VERSION; /* rtld_db feature version */ +#endif + +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; + +#if defined(sun) +#pragma init(_dtrace_init) +#else +void _dtrace_init(void) __attribute__ ((constructor)); +#endif +void +_dtrace_init(void) +{ + _dtrace_debug = getenv("DTRACE_DEBUG") != NULL; + +#if defined(sun) + for (; _dtrace_rdvers > 0; _dtrace_rdvers--) { + if (rd_init(_dtrace_rdvers) == RD_OK) + break; + } +#endif +#if defined(__i386__) + /* make long doubles 64 bits -sson */ + (void) fpsetprec(FP_PE); +#endif +} + +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]; + int fd; +#if defined(sun) + struct dirent *dp, *ep; + DIR *dirp; + + 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); +#else + char *p; + char *p1; + char *p_providers = NULL; + int error; + size_t len = 0; + + /* + * Loop to allocate/reallocate memory for the string of provider + * names and retry: + */ + while(1) { + /* + * The first time around, get the string length. The next time, + * hopefully we've allocated enough memory. + */ + error = sysctlbyname("debug.dtrace.providers",p_providers,&len,NULL,0); + if (len == 0) + /* No providers? That's strange. Where's dtrace? */ + break; + else if (error == 0 && p_providers == NULL) { + /* + * Allocate the initial memory which should be enough + * unless another provider loads before we have + * time to go back and get the string. + */ + if ((p_providers = malloc(len)) == NULL) + /* How do we report errors here? */ + return; + } else if (error == -1 && errno == ENOMEM) { + /* + * The current buffer isn't large enough, so + * reallocate it. We normally won't need to do this + * because providers aren't being loaded all the time. + */ + if ((p = realloc(p_providers,len)) == NULL) + /* How do we report errors here? */ + return; + p_providers = p; + } else + break; + } + + /* Check if we got a string of provider names: */ + if (error == 0 && len > 0 && p_providers != NULL) { + p = p_providers; + + /* + * Parse the string containing the space separated + * provider names. + */ + while ((p1 = strsep(&p," ")) != NULL) { + 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; + + dfp->df_fds = fds; + dfp->df_size = size; + } + + (void) snprintf(path, sizeof (path), "/dev/dtrace/%s", p1); + + 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(p1) + 1)) == NULL) { + free(prov); + (void) close(fd); + break; + } + + (void) strcpy(prov->dp_name, p1); + prov->dp_next = *provmod; + *provmod = prov; + + dt_dprintf("opened provider %s\n", p1); + dfp->df_fds[dfp->df_ents++] = fd; + } + } + if (p_providers != NULL) + free(p_providers); +#endif +} + +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; +} + +#if defined(sun) +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); +} +#endif + +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 */ + +#if defined(sun) + ftfd = open("/dev/dtrace/provider/fasttrap", O_RDWR); +#else + ftfd = open("/dev/dtrace/fasttrap", O_RDWR); +#endif + 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; +#if defined(sun) + dtp->dt_stdout_fd = -1; +#else + dtp->dt_freopen_fp = NULL; +#endif + 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); + +#if defined(sun) + (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)); +#endif + + 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 <sys/isa_defs.h> + * 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 + +#if defined(sun) +#ifdef __x86 + /* + * On x86 systems, __i386 is defined for <sys/isa_defs.h> 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 +#else +#if defined(__amd64__) || defined(__i386__) + if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64) { + if (dt_cpp_add_arg(dtp, "-m64") == NULL) + return (set_open_errno(dtp, errp, EDT_NOMEM)); + } else { + if (dt_cpp_add_arg(dtp, "-m32") == NULL) + return (set_open_errno(dtp, errp, EDT_NOMEM)); + } +#endif +#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)); + + /* + * On FreeBSD the kernel module name can't be hard-coded. The + * 'kern.bootfile' sysctl value tells us exactly which file is being + * used as the kernel. + */ +#if !defined(sun) + { + char bootfile[MAXPATHLEN]; + char *p; + int i; + size_t len = sizeof(bootfile); + + /* This call shouldn't fail, but use a default just in case. */ + if (sysctlbyname("kern.bootfile", bootfile, &len, NULL, 0) != 0) + strlcpy(bootfile, "kernel", sizeof(bootfile)); + + if ((p = strrchr(bootfile, '/')) != NULL) + p++; + else + p = bootfile; + + /* + * Format the global variables based on the kernel module name. + */ + snprintf(curthread_str, sizeof(curthread_str), "%s`struct thread *",p); + snprintf(intmtx_str, sizeof(intmtx_str), "int(%s`struct mtx *)",p); + snprintf(threadmtx_str, sizeof(threadmtx_str), "struct thread *(%s`struct mtx *)",p); + snprintf(rwlock_str, sizeof(rwlock_str), "int(%s`struct rwlock *)",p); + snprintf(sxlock_str, sizeof(sxlock_str), "int(%s`struct sxlock *)",p); + } +#endif + + 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 <DYN> into the D container. The string type is added + * as a typedef of char[n]. The <DYN> 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, + "<DYN>", 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 defined(sun) + if (dtp->dt_stdout_fd != -1) + (void) close(dtp->dt_stdout_fd); +#else + if (dtp->dt_freopen_fp != NULL) + (void) fclose(dtp->dt_freopen_fp); +#endif + + dt_epid_destroy(dtp); + dt_aggid_destroy(dtp); + dt_format_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); +} |