4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
22 * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
23 * Use is subject to license terms.
26 #pragma ident "%Z%%M% %I% %E% SMI"
36 { EDT_VERSION, "Client requested version newer than library" },
37 { EDT_VERSINVAL, "Version is not properly formatted or is too large" },
38 { EDT_VERSUNDEF, "Requested version is not supported by compiler" },
39 { EDT_VERSREDUCED, "Requested version conflicts with earlier setting" },
40 { EDT_CTF, "Unexpected libctf error" },
41 { EDT_COMPILER, "Error in D program compilation" },
42 { EDT_NOREG, "Insufficient registers to generate code" },
43 { EDT_NOTUPREG, "Insufficient tuple registers to generate code" },
44 { EDT_NOMEM, "Memory allocation failure" },
45 { EDT_INT2BIG, "Integer constant table limit exceeded" },
46 { EDT_STR2BIG, "String constant table limit exceeded" },
47 { EDT_NOMOD, "Unknown module name" },
48 { EDT_NOPROV, "Unknown provider name" },
49 { EDT_NOPROBE, "No probe matches description" },
50 { EDT_NOSYM, "Unknown symbol name" },
51 { EDT_NOSYMADDR, "No symbol corresponds to address" },
52 { EDT_NOTYPE, "Unknown type name" },
53 { EDT_NOVAR, "Unknown variable name" },
54 { EDT_NOAGG, "Unknown aggregation name" },
55 { EDT_BADSCOPE, "Improper use of scoping operator in type name" },
56 { EDT_BADSPEC, "Overspecified probe description" },
57 { EDT_BADSPCV, "Undefined macro variable in probe description" },
58 { EDT_BADID, "Unknown probe identifier" },
59 { EDT_NOTLOADED, "Module is no longer loaded" },
60 { EDT_NOCTF, "Module does not contain any CTF data" },
61 { EDT_DATAMODEL, "Module and program data models do not match" },
62 { EDT_DIFVERS, "Library uses newer DIF version than kernel" },
63 { EDT_BADAGG, "Unknown aggregating action" },
64 { EDT_FIO, "Error occurred while reading from input stream" },
65 { EDT_DIFINVAL, "DIF program content is invalid" },
66 { EDT_DIFSIZE, "DIF program exceeds maximum program size" },
67 { EDT_DIFFAULT, "DIF program contains invalid pointer" },
68 { EDT_BADPROBE, "Invalid probe specification" },
69 { EDT_BADPGLOB, "Probe description has too many globbing characters" },
70 { EDT_NOSCOPE, "Declaration scope stack underflow" },
71 { EDT_NODECL, "Declaration stack underflow" },
72 { EDT_DMISMATCH, "Data record list does not match statement" },
73 { EDT_DOFFSET, "Data record offset exceeds buffer boundary" },
74 { EDT_DALIGN, "Data record has inappropriate alignment" },
75 { EDT_BADOPTNAME, "Invalid option name" },
76 { EDT_BADOPTVAL, "Invalid value for specified option" },
77 { EDT_BADOPTCTX, "Option cannot be used from within a D program" },
78 { EDT_CPPFORK, "Failed to fork preprocessor" },
79 { EDT_CPPEXEC, "Failed to exec preprocessor" },
80 { EDT_CPPENT, "Preprocessor not found" },
81 { EDT_CPPERR, "Preprocessor failed to process input program" },
82 { EDT_SYMOFLOW, "Symbol table identifier space exhausted" },
83 { EDT_ACTIVE, "Operation illegal when tracing is active" },
84 { EDT_DESTRUCTIVE, "Destructive actions not allowed" },
85 { EDT_NOANON, "No anonymous tracing state" },
86 { EDT_ISANON, "Can't claim anonymous state and enable probes" },
87 { EDT_ENDTOOBIG, "END enablings exceed size of principal buffer" },
88 { EDT_NOCONV, "Failed to load type for printf conversion" },
89 { EDT_BADCONV, "Incomplete printf conversion" },
90 { EDT_BADERROR, "Invalid library ERROR action" },
91 { EDT_ERRABORT, "Abort due to error" },
92 { EDT_DROPABORT, "Abort due to drop" },
93 { EDT_DIRABORT, "Abort explicitly directed" },
94 { EDT_BADRVAL, "Invalid return value from callback" },
95 { EDT_BADNORMAL, "Invalid normalization" },
96 { EDT_BUFTOOSMALL, "Enabling exceeds size of buffer" },
97 { EDT_BADTRUNC, "Invalid truncation" },
98 { EDT_BUSY, "DTrace cannot be used when kernel debugger is active" },
99 { EDT_ACCESS, "DTrace requires additional privileges" },
100 { EDT_NOENT, "DTrace device not available on system" },
101 { EDT_BRICKED, "Abort due to systemic unresponsiveness" },
102 { EDT_HARDWIRE, "Failed to load language definitions" },
103 { EDT_ELFVERSION, "libelf is out-of-date with respect to libdtrace" },
104 { EDT_NOBUFFERED, "Attempt to buffer output without handler" },
105 { EDT_UNSTABLE, "Description matched an unstable set of probes" },
106 { EDT_BADSETOPT, "Invalid setopt() library action" },
107 { EDT_BADSTACKPC, "Invalid stack program counter size" },
108 { EDT_BADAGGVAR, "Invalid aggregation variable identifier" },
109 { EDT_OVERSION, "Client requested deprecated version of library" }
112 static const int _dt_nerr = sizeof (_dt_errlist) / sizeof (_dt_errlist[0]);
115 dtrace_errmsg(dtrace_hdl_t *dtp, int error)
120 if (error == EDT_COMPILER && dtp != NULL && dtp->dt_errmsg[0] != '\0')
121 str = dtp->dt_errmsg;
122 else if (error == EDT_CTF && dtp != NULL && dtp->dt_ctferr != 0)
123 str = ctf_errmsg(dtp->dt_ctferr);
124 else if (error >= EDT_BASE && (error - EDT_BASE) < _dt_nerr) {
125 for (i = 0; i < _dt_nerr; i++) {
126 if (_dt_errlist[i].err == error)
127 return (_dt_errlist[i].msg);
131 str = strerror(error);
133 return (str ? str : "Unknown error");
137 dtrace_errno(dtrace_hdl_t *dtp)
139 return (dtp->dt_errno);
144 dt_set_errno(dtrace_hdl_t *dtp, int err)
151 _dt_set_errno(dtrace_hdl_t *dtp, int err, const char *errfile, int errline)
154 dtp->dt_errfile = errfile;
155 dtp->dt_errline = errline;
159 void dt_get_errloc(dtrace_hdl_t *dtp, const char **p_errfile, int *p_errline)
161 *p_errfile = dtp->dt_errfile;
162 *p_errline = dtp->dt_errline;
167 dt_set_errmsg(dtrace_hdl_t *dtp, const char *errtag, const char *region,
168 const char *filename, int lineno, const char *format, va_list ap)
174 n = sizeof (dtp->dt_errmsg);
176 if (errtag != NULL && (yypcb->pcb_cflags & DTRACE_C_ETAGS))
177 (void) snprintf(s, n, "[%s] ", errtag);
181 len = strlen(dtp->dt_errmsg);
182 s = dtp->dt_errmsg + len;
183 n = sizeof (dtp->dt_errmsg) - len;
185 if (filename == NULL)
186 filename = dtp->dt_filetag;
188 if (filename != NULL)
189 (void) snprintf(s, n, "\"%s\", line %d: ", filename, lineno);
190 else if (lineno != 0)
191 (void) snprintf(s, n, "line %d: ", lineno);
192 else if (region != NULL)
193 (void) snprintf(s, n, "in %s: ", region);
195 len = strlen(dtp->dt_errmsg);
196 s = dtp->dt_errmsg + len;
197 n = sizeof (dtp->dt_errmsg) - len;
198 (void) vsnprintf(s, n, format, ap);
200 if ((p = strrchr(dtp->dt_errmsg, '\n')) != NULL)
201 *p = '\0'; /* remove trailing \n from message buffer */
203 dtp->dt_errtag = errtag;
208 dtrace_faultstr(dtrace_hdl_t *dtp, int fault)
212 static const struct {
216 { DTRACEFLT_BADADDR, "invalid address" },
217 { DTRACEFLT_BADALIGN, "invalid alignment" },
218 { DTRACEFLT_ILLOP, "illegal operation" },
219 { DTRACEFLT_DIVZERO, "divide-by-zero" },
220 { DTRACEFLT_NOSCRATCH, "out of scratch space" },
221 { DTRACEFLT_KPRIV, "invalid kernel access" },
222 { DTRACEFLT_UPRIV, "invalid user access" },
223 { DTRACEFLT_TUPOFLOW, "tuple stack overflow" },
224 { DTRACEFLT_BADSTACK, "bad stack" },
225 { DTRACEFLT_LIBRARY, "library-level fault" },
229 for (i = 0; faults[i].str != NULL; i++) {
230 if (faults[i].code == fault)
231 return (faults[i].str);
234 return ("unknown fault");