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4471 DTrace count() with histogram
4472 DTrace full width distribution histograms
4473 DTrace frequency trails
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--- old/usr/src/lib/libdtrace/common/dt_impl.h
+++ new/usr/src/lib/libdtrace/common/dt_impl.h
1 1 /*
2 2 * CDDL HEADER START
3 3 *
4 4 * The contents of this file are subject to the terms of the
5 5 * Common Development and Distribution License (the "License").
6 6 * You may not use this file except in compliance with the License.
7 7 *
8 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 9 * or http://www.opensolaris.org/os/licensing.
10 10 * See the License for the specific language governing permissions
11 11 * and limitations under the License.
12 12 *
13 13 * When distributing Covered Code, include this CDDL HEADER in each
14 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 15 * If applicable, add the following below this CDDL HEADER, with the
16 16 * fields enclosed by brackets "[]" replaced with your own identifying
17 17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 18 *
19 19 * CDDL HEADER END
20 20 */
21 21
22 22 /*
23 23 * Copyright 2010 Sun Microsystems, Inc. All rights reserved.
24 24 * Use is subject to license terms.
25 25 */
26 26
27 27 /*
28 28 * Copyright (c) 2013, Joyent, Inc. All rights reserved.
29 29 * Copyright (c) 2012 by Delphix. All rights reserved.
30 30 */
31 31
32 32 #ifndef _DT_IMPL_H
33 33 #define _DT_IMPL_H
34 34
35 35 #include <sys/param.h>
36 36 #include <sys/objfs.h>
37 37 #include <setjmp.h>
38 38 #include <libctf.h>
39 39 #include <dtrace.h>
40 40 #include <gelf.h>
41 41 #include <synch.h>
42 42
43 43 #ifdef __cplusplus
44 44 extern "C" {
45 45 #endif
46 46
47 47 #include <dt_parser.h>
48 48 #include <dt_regset.h>
49 49 #include <dt_inttab.h>
50 50 #include <dt_strtab.h>
51 51 #include <dt_ident.h>
52 52 #include <dt_list.h>
53 53 #include <dt_decl.h>
54 54 #include <dt_as.h>
55 55 #include <dt_proc.h>
56 56 #include <dt_dof.h>
57 57 #include <dt_pcb.h>
58 58 #include <dt_pq.h>
59 59
60 60 struct dt_module; /* see below */
61 61 struct dt_pfdict; /* see <dt_printf.h> */
62 62 struct dt_arg; /* see below */
63 63 struct dt_provider; /* see <dt_provider.h> */
64 64 struct dt_xlator; /* see <dt_xlator.h> */
65 65
66 66 typedef struct dt_intrinsic {
67 67 const char *din_name; /* string name of the intrinsic type */
68 68 ctf_encoding_t din_data; /* integer or floating-point CTF encoding */
69 69 uint_t din_kind; /* CTF type kind to instantiate */
70 70 } dt_intrinsic_t;
71 71
72 72 typedef struct dt_typedef {
73 73 const char *dty_src; /* string name of typedef source type */
74 74 const char *dty_dst; /* string name of typedef destination type */
75 75 } dt_typedef_t;
76 76
77 77 typedef struct dt_intdesc {
78 78 const char *did_name; /* string name of the integer type */
79 79 ctf_file_t *did_ctfp; /* CTF container for this type reference */
80 80 ctf_id_t did_type; /* CTF type reference for this type */
81 81 uintmax_t did_limit; /* maximum positive value held by type */
82 82 } dt_intdesc_t;
83 83
84 84 typedef struct dt_modops {
85 85 uint_t (*do_syminit)(struct dt_module *);
86 86 void (*do_symsort)(struct dt_module *);
87 87 GElf_Sym *(*do_symname)(struct dt_module *,
88 88 const char *, GElf_Sym *, uint_t *);
89 89 GElf_Sym *(*do_symaddr)(struct dt_module *,
90 90 GElf_Addr, GElf_Sym *, uint_t *);
91 91 } dt_modops_t;
92 92
93 93 typedef struct dt_arg {
94 94 int da_ndx; /* index of this argument */
95 95 int da_mapping; /* mapping of argument indices to arguments */
96 96 ctf_id_t da_type; /* type of argument */
97 97 ctf_file_t *da_ctfp; /* CTF container for type */
98 98 dt_ident_t *da_xlator; /* translator, if any */
99 99 struct dt_arg *da_next; /* next argument */
100 100 } dt_arg_t;
101 101
102 102 typedef struct dt_sym {
103 103 uint_t ds_symid; /* id of corresponding symbol */
104 104 uint_t ds_next; /* index of next element in hash chain */
105 105 } dt_sym_t;
106 106
107 107 typedef struct dt_module {
108 108 dt_list_t dm_list; /* list forward/back pointers */
109 109 char dm_name[DTRACE_MODNAMELEN]; /* string name of module */
110 110 char dm_file[MAXPATHLEN]; /* file path of module (if any) */
111 111 struct dt_module *dm_next; /* pointer to next module in hash chain */
112 112 const dt_modops_t *dm_ops; /* pointer to data model's ops vector */
113 113 Elf *dm_elf; /* libelf handle for module object */
114 114 objfs_info_t dm_info; /* object filesystem private info */
115 115 ctf_sect_t dm_symtab; /* symbol table for module */
116 116 ctf_sect_t dm_strtab; /* string table for module */
117 117 ctf_sect_t dm_ctdata; /* CTF data for module */
118 118 ctf_file_t *dm_ctfp; /* CTF container handle */
119 119 uint_t *dm_symbuckets; /* symbol table hash buckets (chain indices) */
120 120 dt_sym_t *dm_symchains; /* symbol table hash chains buffer */
121 121 void *dm_asmap; /* symbol pointers sorted by value */
122 122 uint_t dm_symfree; /* index of next free hash element */
123 123 uint_t dm_nsymbuckets; /* number of elements in bucket array */
124 124 uint_t dm_nsymelems; /* number of elements in hash table */
125 125 uint_t dm_asrsv; /* actual reserved size of dm_asmap */
126 126 uint_t dm_aslen; /* number of entries in dm_asmap */
127 127 uint_t dm_flags; /* module flags (see below) */
128 128 int dm_modid; /* modinfo(1M) module identifier */
129 129 GElf_Addr dm_text_va; /* virtual address of text section */
130 130 GElf_Xword dm_text_size; /* size in bytes of text section */
131 131 GElf_Addr dm_data_va; /* virtual address of data section */
132 132 GElf_Xword dm_data_size; /* size in bytes of data section */
133 133 GElf_Addr dm_bss_va; /* virtual address of BSS */
134 134 GElf_Xword dm_bss_size; /* size in bytes of BSS */
135 135 dt_idhash_t *dm_extern; /* external symbol definitions */
136 136 pid_t dm_pid; /* pid for this module */
137 137 uint_t dm_nctflibs; /* number of ctf children libraries */
138 138 ctf_file_t **dm_libctfp; /* process library ctf pointers */
139 139 char **dm_libctfn; /* names of process ctf containers */
140 140 } dt_module_t;
141 141
142 142 #define DT_DM_LOADED 0x1 /* module symbol and type data is loaded */
143 143 #define DT_DM_KERNEL 0x2 /* module is associated with a kernel object */
144 144 #define DT_DM_PRIMARY 0x4 /* module is a krtld primary kernel object */
145 145
146 146 typedef struct dt_provmod {
147 147 char *dp_name; /* name of provider module */
148 148 struct dt_provmod *dp_next; /* next module */
149 149 } dt_provmod_t;
150 150
151 151 typedef struct dt_ahashent {
152 152 struct dt_ahashent *dtahe_prev; /* prev on hash chain */
153 153 struct dt_ahashent *dtahe_next; /* next on hash chain */
154 154 struct dt_ahashent *dtahe_prevall; /* prev on list of all */
155 155 struct dt_ahashent *dtahe_nextall; /* next on list of all */
156 156 uint64_t dtahe_hashval; /* hash value */
157 157 size_t dtahe_size; /* size of data */
158 158 dtrace_aggdata_t dtahe_data; /* data */
159 159 void (*dtahe_aggregate)(int64_t *, int64_t *, size_t); /* function */
160 160 } dt_ahashent_t;
161 161
162 162 typedef struct dt_ahash {
163 163 dt_ahashent_t **dtah_hash; /* hash table */
164 164 dt_ahashent_t *dtah_all; /* list of all elements */
165 165 size_t dtah_size; /* size of hash table */
166 166 } dt_ahash_t;
167 167
168 168 typedef struct dt_aggregate {
169 169 dtrace_bufdesc_t dtat_buf; /* buf aggregation snapshot */
170 170 int dtat_flags; /* aggregate flags */
171 171 processorid_t dtat_ncpus; /* number of CPUs in aggregate */
172 172 processorid_t *dtat_cpus; /* CPUs in aggregate */
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173 173 processorid_t dtat_ncpu; /* size of dtat_cpus array */
174 174 processorid_t dtat_maxcpu; /* maximum number of CPUs */
175 175 dt_ahash_t dtat_hash; /* aggregate hash table */
176 176 } dt_aggregate_t;
177 177
178 178 typedef struct dt_print_aggdata {
179 179 dtrace_hdl_t *dtpa_dtp; /* pointer to libdtrace handle */
180 180 dtrace_aggvarid_t dtpa_id; /* aggregation variable of interest */
181 181 FILE *dtpa_fp; /* file pointer */
182 182 int dtpa_allunprint; /* print only unprinted aggregations */
183 + int dtpa_agghist; /* print aggregation as histogram */
184 + int dtpa_agghisthdr; /* aggregation histogram hdr printed */
185 + int dtpa_aggpack; /* pack quantized aggregations */
183 186 } dt_print_aggdata_t;
184 187
185 188 typedef struct dt_dirpath {
186 189 dt_list_t dir_list; /* linked-list forward/back pointers */
187 190 char *dir_path; /* directory pathname */
188 191 } dt_dirpath_t;
189 192
190 193 typedef struct dt_lib_depend {
191 194 dt_list_t dtld_deplist; /* linked-list forward/back pointers */
192 195 char *dtld_library; /* library name */
193 196 char *dtld_libpath; /* library pathname */
194 197 uint_t dtld_finish; /* completion time in tsort for lib */
195 198 uint_t dtld_start; /* starting time in tsort for lib */
196 199 uint_t dtld_loaded; /* boolean: is this library loaded */
197 200 dt_list_t dtld_dependencies; /* linked-list of lib dependencies */
198 201 dt_list_t dtld_dependents; /* linked-list of lib dependents */
199 202 } dt_lib_depend_t;
200 203
201 204 typedef uint32_t dt_version_t; /* encoded version (see below) */
202 205
203 206 struct dtrace_hdl {
204 207 const dtrace_vector_t *dt_vector; /* library vector, if vectored open */
205 208 void *dt_varg; /* vector argument, if vectored open */
206 209 dtrace_conf_t dt_conf; /* DTrace driver configuration profile */
207 210 char dt_errmsg[BUFSIZ]; /* buffer for formatted syntax error msgs */
208 211 const char *dt_errtag; /* tag used with last call to dt_set_errmsg() */
209 212 dt_pcb_t *dt_pcb; /* pointer to current parsing control block */
210 213 ulong_t dt_gen; /* compiler generation number */
211 214 dt_list_t dt_programs; /* linked list of dtrace_prog_t's */
212 215 dt_list_t dt_xlators; /* linked list of dt_xlator_t's */
213 216 struct dt_xlator **dt_xlatormap; /* dt_xlator_t's indexed by dx_id */
214 217 id_t dt_xlatorid; /* next dt_xlator_t id to assign */
215 218 dt_ident_t *dt_externs; /* linked list of external symbol identifiers */
216 219 dt_idhash_t *dt_macros; /* hash table of macro variable identifiers */
217 220 dt_idhash_t *dt_aggs; /* hash table of aggregation identifiers */
218 221 dt_idhash_t *dt_globals; /* hash table of global identifiers */
219 222 dt_idhash_t *dt_tls; /* hash table of thread-local identifiers */
220 223 dt_list_t dt_modlist; /* linked list of dt_module_t's */
221 224 dt_module_t **dt_mods; /* hash table of dt_module_t's */
222 225 uint_t dt_modbuckets; /* number of module hash buckets */
223 226 uint_t dt_nmods; /* number of modules in hash and list */
224 227 dt_provmod_t *dt_provmod; /* linked list of provider modules */
225 228 dt_module_t *dt_exec; /* pointer to executable module */
226 229 dt_module_t *dt_rtld; /* pointer to run-time linker module */
227 230 dt_module_t *dt_cdefs; /* pointer to C dynamic type module */
228 231 dt_module_t *dt_ddefs; /* pointer to D dynamic type module */
229 232 dt_list_t dt_provlist; /* linked list of dt_provider_t's */
230 233 struct dt_provider **dt_provs; /* hash table of dt_provider_t's */
231 234 uint_t dt_provbuckets; /* number of provider hash buckets */
232 235 uint_t dt_nprovs; /* number of providers in hash and list */
233 236 dt_proc_hash_t *dt_procs; /* hash table of grabbed process handles */
234 237 char **dt_proc_env; /* additional environment variables */
235 238 dt_intdesc_t dt_ints[6]; /* cached integer type descriptions */
236 239 ctf_id_t dt_type_func; /* cached CTF identifier for function type */
237 240 ctf_id_t dt_type_fptr; /* cached CTF identifier for function pointer */
238 241 ctf_id_t dt_type_str; /* cached CTF identifier for string type */
239 242 ctf_id_t dt_type_dyn; /* cached CTF identifier for <DYN> type */
240 243 ctf_id_t dt_type_stack; /* cached CTF identifier for stack type */
241 244 ctf_id_t dt_type_symaddr; /* cached CTF identifier for _symaddr type */
242 245 ctf_id_t dt_type_usymaddr; /* cached CTF ident. for _usymaddr type */
243 246 size_t dt_maxprobe; /* max enabled probe ID */
244 247 dtrace_eprobedesc_t **dt_edesc; /* enabled probe descriptions */
245 248 dtrace_probedesc_t **dt_pdesc; /* probe descriptions for enabled prbs */
246 249 size_t dt_maxagg; /* max aggregation ID */
247 250 dtrace_aggdesc_t **dt_aggdesc; /* aggregation descriptions */
248 251 int dt_maxformat; /* max format ID */
249 252 void **dt_formats; /* pointer to format array */
250 253 int dt_maxstrdata; /* max strdata ID */
251 254 char **dt_strdata; /* pointer to strdata array */
252 255 dt_aggregate_t dt_aggregate; /* aggregate */
253 256 dt_pq_t *dt_bufq; /* CPU-specific data queue */
254 257 struct dt_pfdict *dt_pfdict; /* dictionary of printf conversions */
255 258 dt_version_t dt_vmax; /* optional ceiling on program API binding */
256 259 dtrace_attribute_t dt_amin; /* optional floor on program attributes */
257 260 char *dt_cpp_path; /* pathname of cpp(1) to invoke if needed */
258 261 char **dt_cpp_argv; /* argument vector for exec'ing cpp(1) */
259 262 int dt_cpp_argc; /* count of initialized cpp(1) arguments */
260 263 int dt_cpp_args; /* size of dt_cpp_argv[] array */
261 264 char *dt_ld_path; /* pathname of ld(1) to invoke if needed */
262 265 dt_list_t dt_lib_path; /* linked-list forming library search path */
263 266 uint_t dt_lazyload; /* boolean: set via -xlazyload */
264 267 uint_t dt_droptags; /* boolean: set via -xdroptags */
265 268 uint_t dt_active; /* boolean: set once tracing is active */
266 269 uint_t dt_stopped; /* boolean: set once tracing is stopped */
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267 270 processorid_t dt_beganon; /* CPU that executed BEGIN probe (if any) */
268 271 processorid_t dt_endedon; /* CPU that executed END probe (if any) */
269 272 uint_t dt_oflags; /* dtrace open-time options (see dtrace.h) */
270 273 uint_t dt_cflags; /* dtrace compile-time options (see dtrace.h) */
271 274 uint_t dt_dflags; /* dtrace link-time options (see dtrace.h) */
272 275 uint_t dt_prcmode; /* dtrace process create mode (see dt_proc.h) */
273 276 uint_t dt_linkmode; /* dtrace symbol linking mode (see below) */
274 277 uint_t dt_linktype; /* dtrace link output file type (see below) */
275 278 uint_t dt_xlatemode; /* dtrace translator linking mode (see below) */
276 279 uint_t dt_stdcmode; /* dtrace stdc compatibility mode (see below) */
280 + uint_t dt_encoding; /* dtrace output encoding (see below) */
277 281 uint_t dt_treedump; /* dtrace tree debug bitmap (see below) */
278 282 uint64_t dt_options[DTRACEOPT_MAX]; /* dtrace run-time options */
279 283 int dt_version; /* library version requested by client */
280 284 int dt_ctferr; /* error resulting from last CTF failure */
281 285 int dt_errno; /* error resulting from last failed operation */
282 286 int dt_fd; /* file descriptor for dtrace pseudo-device */
283 287 int dt_ftfd; /* file descriptor for fasttrap pseudo-device */
284 288 int dt_fterr; /* saved errno from failed open of dt_ftfd */
285 289 int dt_cdefs_fd; /* file descriptor for C CTF debugging cache */
286 290 int dt_ddefs_fd; /* file descriptor for D CTF debugging cache */
287 291 int dt_stdout_fd; /* file descriptor for saved stdout */
288 292 dtrace_handle_err_f *dt_errhdlr; /* error handler, if any */
289 293 void *dt_errarg; /* error handler argument */
290 294 dtrace_prog_t *dt_errprog; /* error handler program, if any */
291 295 dtrace_handle_drop_f *dt_drophdlr; /* drop handler, if any */
292 296 void *dt_droparg; /* drop handler argument */
293 297 dtrace_handle_proc_f *dt_prochdlr; /* proc handler, if any */
294 298 void *dt_procarg; /* proc handler argument */
295 299 dtrace_handle_setopt_f *dt_setopthdlr; /* setopt handler, if any */
296 300 void *dt_setoptarg; /* setopt handler argument */
297 301 dtrace_status_t dt_status[2]; /* status cache */
298 302 int dt_statusgen; /* current status generation */
299 303 hrtime_t dt_laststatus; /* last status */
300 304 hrtime_t dt_lastswitch; /* last switch of buffer data */
301 305 hrtime_t dt_lastagg; /* last snapshot of aggregation data */
302 306 char *dt_sprintf_buf; /* buffer for dtrace_sprintf() */
303 307 int dt_sprintf_buflen; /* length of dtrace_sprintf() buffer */
304 308 const char *dt_filetag; /* default filetag for dt_set_errmsg() */
305 309 char *dt_buffered_buf; /* buffer for buffered output */
306 310 size_t dt_buffered_offs; /* current offset into buffered buffer */
307 311 size_t dt_buffered_size; /* size of buffered buffer */
308 312 dtrace_handle_buffered_f *dt_bufhdlr; /* buffered handler, if any */
309 313 void *dt_bufarg; /* buffered handler argument */
310 314 dt_dof_t dt_dof; /* DOF generation buffers (see dt_dof.c) */
311 315 struct utsname dt_uts; /* uname(2) information for system */
312 316 dt_list_t dt_lib_dep; /* scratch linked-list of lib dependencies */
313 317 dt_list_t dt_lib_dep_sorted; /* dependency sorted library list */
314 318 dtrace_flowkind_t dt_flow; /* flow kind */
315 319 const char *dt_prefix; /* recommended flow prefix */
316 320 int dt_indent; /* recommended flow indent */
317 321 dtrace_epid_t dt_last_epid; /* most recently consumed EPID */
318 322 uint64_t dt_last_timestamp; /* most recently consumed timestamp */
319 323 };
320 324
321 325 /*
322 326 * Values for the user arg of the ECB.
323 327 */
324 328 #define DT_ECB_DEFAULT 0
325 329 #define DT_ECB_ERROR 1
326 330
327 331 /*
328 332 * Values for the dt_linkmode property, which is used by the assembler when
329 333 * processing external symbol references. User can set using -xlink=<mode>.
330 334 */
331 335 #define DT_LINK_KERNEL 0 /* kernel syms static, user syms dynamic */
332 336 #define DT_LINK_PRIMARY 1 /* primary kernel syms static, others dynamic */
333 337 #define DT_LINK_DYNAMIC 2 /* all symbols dynamic */
334 338 #define DT_LINK_STATIC 3 /* all symbols static */
335 339
336 340 /*
337 341 * Values for the dt_linktype property, which is used by dtrace_program_link()
338 342 * to determine the type of output file that is desired by the client.
339 343 */
340 344 #define DT_LTYP_ELF 0 /* produce ELF containing DOF */
341 345 #define DT_LTYP_DOF 1 /* produce stand-alone DOF */
342 346
343 347 /*
344 348 * Values for the dt_xlatemode property, which is used to determine whether
345 349 * references to dynamic translators are permitted. Set using -xlate=<mode>.
346 350 */
347 351 #define DT_XL_STATIC 0 /* require xlators to be statically defined */
348 352 #define DT_XL_DYNAMIC 1 /* produce references to dynamic translators */
349 353
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350 354 /*
351 355 * Values for the dt_stdcmode property, which is used by the compiler when
352 356 * running cpp to determine the presence and setting of the __STDC__ macro.
353 357 */
354 358 #define DT_STDC_XA 0 /* ISO C + K&R C compat w/o ISO: __STDC__=0 */
355 359 #define DT_STDC_XC 1 /* Strict ISO C: __STDC__=1 */
356 360 #define DT_STDC_XS 2 /* K&R C: __STDC__ not defined */
357 361 #define DT_STDC_XT 3 /* ISO C + K&R C compat with ISO: __STDC__=0 */
358 362
359 363 /*
364 + * Values for the dt_encoding property, which is used to force a particular
365 + * character encoding (overriding default behavior and/or automatic detection).
366 + */
367 +#define DT_ENCODING_UNSET 0
368 +#define DT_ENCODING_ASCII 1
369 +#define DT_ENCODING_UTF8 2
370 +
371 +/*
360 372 * Macro to test whether a given pass bit is set in the dt_treedump bit-vector.
361 373 * If the bit for pass 'p' is set, the D compiler displays the parse tree for
362 374 * the program by printing it to stderr at the end of compiler pass 'p'.
363 375 */
364 376 #define DT_TREEDUMP_PASS(dtp, p) ((dtp)->dt_treedump & (1 << ((p) - 1)))
365 377
366 378 /*
367 379 * Macros for accessing the cached CTF container and type ID for the common
368 380 * types "int", "string", and <DYN>, which we need to use frequently in the D
369 381 * compiler. The DT_INT_* macro relies upon "int" being at index 0 in the
370 382 * _dtrace_ints_* tables in dt_open.c; the others are also set up there.
371 383 */
372 384 #define DT_INT_CTFP(dtp) ((dtp)->dt_ints[0].did_ctfp)
373 385 #define DT_INT_TYPE(dtp) ((dtp)->dt_ints[0].did_type)
374 386
375 387 #define DT_FUNC_CTFP(dtp) ((dtp)->dt_ddefs->dm_ctfp)
376 388 #define DT_FUNC_TYPE(dtp) ((dtp)->dt_type_func)
377 389
378 390 #define DT_FPTR_CTFP(dtp) ((dtp)->dt_ddefs->dm_ctfp)
379 391 #define DT_FPTR_TYPE(dtp) ((dtp)->dt_type_fptr)
380 392
381 393 #define DT_STR_CTFP(dtp) ((dtp)->dt_ddefs->dm_ctfp)
382 394 #define DT_STR_TYPE(dtp) ((dtp)->dt_type_str)
383 395
384 396 #define DT_DYN_CTFP(dtp) ((dtp)->dt_ddefs->dm_ctfp)
385 397 #define DT_DYN_TYPE(dtp) ((dtp)->dt_type_dyn)
386 398
387 399 #define DT_STACK_CTFP(dtp) ((dtp)->dt_ddefs->dm_ctfp)
388 400 #define DT_STACK_TYPE(dtp) ((dtp)->dt_type_stack)
389 401
390 402 #define DT_SYMADDR_CTFP(dtp) ((dtp)->dt_ddefs->dm_ctfp)
391 403 #define DT_SYMADDR_TYPE(dtp) ((dtp)->dt_type_symaddr)
392 404
393 405 #define DT_USYMADDR_CTFP(dtp) ((dtp)->dt_ddefs->dm_ctfp)
394 406 #define DT_USYMADDR_TYPE(dtp) ((dtp)->dt_type_usymaddr)
395 407
396 408 /*
397 409 * Actions and subroutines are both DT_NODE_FUNC nodes; to avoid confusing
398 410 * an action for a subroutine (or vice versa), we assure that the DT_ACT_*
399 411 * constants and the DIF_SUBR_* constants occupy non-overlapping ranges by
400 412 * starting the DT_ACT_* constants at DIF_SUBR_MAX + 1.
401 413 */
402 414 #define DT_ACT_BASE DIF_SUBR_MAX + 1
403 415 #define DT_ACT(n) (DT_ACT_BASE + (n))
404 416
405 417 #define DT_ACT_PRINTF DT_ACT(0) /* printf() action */
406 418 #define DT_ACT_TRACE DT_ACT(1) /* trace() action */
407 419 #define DT_ACT_TRACEMEM DT_ACT(2) /* tracemem() action */
408 420 #define DT_ACT_STACK DT_ACT(3) /* stack() action */
409 421 #define DT_ACT_STOP DT_ACT(4) /* stop() action */
410 422 #define DT_ACT_BREAKPOINT DT_ACT(5) /* breakpoint() action */
411 423 #define DT_ACT_PANIC DT_ACT(6) /* panic() action */
412 424 #define DT_ACT_SPECULATE DT_ACT(7) /* speculate() action */
413 425 #define DT_ACT_COMMIT DT_ACT(8) /* commit() action */
414 426 #define DT_ACT_DISCARD DT_ACT(9) /* discard() action */
415 427 #define DT_ACT_CHILL DT_ACT(10) /* chill() action */
416 428 #define DT_ACT_EXIT DT_ACT(11) /* exit() action */
417 429 #define DT_ACT_USTACK DT_ACT(12) /* ustack() action */
418 430 #define DT_ACT_PRINTA DT_ACT(13) /* printa() action */
419 431 #define DT_ACT_RAISE DT_ACT(14) /* raise() action */
420 432 #define DT_ACT_CLEAR DT_ACT(15) /* clear() action */
421 433 #define DT_ACT_NORMALIZE DT_ACT(16) /* normalize() action */
422 434 #define DT_ACT_DENORMALIZE DT_ACT(17) /* denormalize() action */
423 435 #define DT_ACT_TRUNC DT_ACT(18) /* trunc() action */
424 436 #define DT_ACT_SYSTEM DT_ACT(19) /* system() action */
425 437 #define DT_ACT_JSTACK DT_ACT(20) /* jstack() action */
426 438 #define DT_ACT_FTRUNCATE DT_ACT(21) /* ftruncate() action */
427 439 #define DT_ACT_FREOPEN DT_ACT(22) /* freopen() action */
428 440 #define DT_ACT_SYM DT_ACT(23) /* sym()/func() actions */
429 441 #define DT_ACT_MOD DT_ACT(24) /* mod() action */
430 442 #define DT_ACT_USYM DT_ACT(25) /* usym()/ufunc() actions */
431 443 #define DT_ACT_UMOD DT_ACT(26) /* umod() action */
432 444 #define DT_ACT_UADDR DT_ACT(27) /* uaddr() action */
433 445 #define DT_ACT_SETOPT DT_ACT(28) /* setopt() action */
434 446 #define DT_ACT_PRINT DT_ACT(29) /* print() action */
435 447
436 448 /*
437 449 * Sentinel to tell freopen() to restore the saved stdout. This must not
438 450 * be ever valid for opening for write access via freopen(3C), which of
439 451 * course, "." never is.
440 452 */
441 453 #define DT_FREOPEN_RESTORE "."
442 454
443 455 #define EDT_BASE 1000 /* base value for libdtrace errnos */
444 456
445 457 enum {
446 458 EDT_VERSION = EDT_BASE, /* client is requesting unsupported version */
447 459 EDT_VERSINVAL, /* version string is invalid or overflows */
448 460 EDT_VERSUNDEF, /* requested API version is not defined */
449 461 EDT_VERSREDUCED, /* requested API version has been reduced */
450 462 EDT_CTF, /* libctf called failed (dt_ctferr has more) */
451 463 EDT_COMPILER, /* error in D program compilation */
452 464 EDT_NOTUPREG, /* tuple register allocation failure */
453 465 EDT_NOMEM, /* memory allocation failure */
454 466 EDT_INT2BIG, /* integer limit exceeded */
455 467 EDT_STR2BIG, /* string limit exceeded */
456 468 EDT_NOMOD, /* unknown module name */
457 469 EDT_NOPROV, /* unknown provider name */
458 470 EDT_NOPROBE, /* unknown probe name */
459 471 EDT_NOSYM, /* unknown symbol name */
460 472 EDT_NOSYMADDR, /* no symbol corresponds to address */
461 473 EDT_NOTYPE, /* unknown type name */
462 474 EDT_NOVAR, /* unknown variable name */
463 475 EDT_NOAGG, /* unknown aggregation name */
464 476 EDT_BADSCOPE, /* improper use of type name scoping operator */
465 477 EDT_BADSPEC, /* overspecified probe description */
466 478 EDT_BADSPCV, /* bad macro variable in probe description */
467 479 EDT_BADID, /* invalid probe identifier */
468 480 EDT_NOTLOADED, /* module is not currently loaded */
469 481 EDT_NOCTF, /* module does not contain any CTF data */
470 482 EDT_DATAMODEL, /* module and program data models don't match */
471 483 EDT_DIFVERS, /* library has newer DIF version than driver */
472 484 EDT_BADAGG, /* unrecognized aggregating action */
473 485 EDT_FIO, /* file i/o error */
474 486 EDT_DIFINVAL, /* invalid DIF program */
475 487 EDT_DIFSIZE, /* invalid DIF size */
476 488 EDT_DIFFAULT, /* failed to copyin DIF program */
477 489 EDT_BADPROBE, /* bad probe description */
478 490 EDT_BADPGLOB, /* bad probe description globbing pattern */
479 491 EDT_NOSCOPE, /* declaration scope stack underflow */
480 492 EDT_NODECL, /* declaration stack underflow */
481 493 EDT_DMISMATCH, /* record list does not match statement */
482 494 EDT_DOFFSET, /* record data offset error */
483 495 EDT_DALIGN, /* record data alignment error */
484 496 EDT_BADOPTNAME, /* invalid dtrace_setopt option name */
485 497 EDT_BADOPTVAL, /* invalid dtrace_setopt option value */
486 498 EDT_BADOPTCTX, /* invalid dtrace_setopt option context */
487 499 EDT_CPPFORK, /* failed to fork preprocessor */
488 500 EDT_CPPEXEC, /* failed to exec preprocessor */
489 501 EDT_CPPENT, /* preprocessor not found */
490 502 EDT_CPPERR, /* unknown preprocessor error */
491 503 EDT_SYMOFLOW, /* external symbol table overflow */
492 504 EDT_ACTIVE, /* operation illegal when tracing is active */
493 505 EDT_DESTRUCTIVE, /* destructive actions not allowed */
494 506 EDT_NOANON, /* no anonymous tracing state */
495 507 EDT_ISANON, /* can't claim anon state and enable probes */
496 508 EDT_ENDTOOBIG, /* END enablings exceed size of prncpl buffer */
497 509 EDT_NOCONV, /* failed to load type for printf conversion */
498 510 EDT_BADCONV, /* incomplete printf conversion */
499 511 EDT_BADERROR, /* invalid library ERROR action */
500 512 EDT_ERRABORT, /* abort due to error */
501 513 EDT_DROPABORT, /* abort due to drop */
502 514 EDT_DIRABORT, /* abort explicitly directed */
503 515 EDT_BADRVAL, /* invalid return value from callback */
504 516 EDT_BADNORMAL, /* invalid normalization */
505 517 EDT_BUFTOOSMALL, /* enabling exceeds size of buffer */
506 518 EDT_BADTRUNC, /* invalid truncation */
507 519 EDT_BUSY, /* device busy (active kernel debugger) */
508 520 EDT_ACCESS, /* insufficient privileges to use DTrace */
509 521 EDT_NOENT, /* dtrace device not available */
510 522 EDT_BRICKED, /* abort due to systemic unresponsiveness */
511 523 EDT_HARDWIRE, /* failed to load hard-wired definitions */
512 524 EDT_ELFVERSION, /* libelf is out-of-date w.r.t libdtrace */
513 525 EDT_NOBUFFERED, /* attempt to buffer output without handler */
514 526 EDT_UNSTABLE, /* description matched unstable set of probes */
515 527 EDT_BADSETOPT, /* invalid setopt library action */
516 528 EDT_BADSTACKPC, /* invalid stack program counter size */
517 529 EDT_BADAGGVAR, /* invalid aggregation variable identifier */
518 530 EDT_OVERSION, /* client is requesting deprecated version */
519 531 EDT_ENABLING_ERR, /* failed to enable probe */
520 532 EDT_NOPROBES, /* no probes sites for declared provider */
521 533 EDT_CANTLOAD /* failed to load a module */
522 534 };
523 535
524 536 /*
525 537 * Interfaces for parsing and comparing DTrace attribute tuples, which describe
526 538 * stability and architectural binding information. The dtrace_attribute_t
527 539 * structure and associated constant definitions are found in <sys/dtrace.h>.
528 540 */
529 541 extern dtrace_attribute_t dt_attr_min(dtrace_attribute_t, dtrace_attribute_t);
530 542 extern dtrace_attribute_t dt_attr_max(dtrace_attribute_t, dtrace_attribute_t);
531 543 extern char *dt_attr_str(dtrace_attribute_t, char *, size_t);
532 544 extern int dt_attr_cmp(dtrace_attribute_t, dtrace_attribute_t);
533 545
534 546 /*
535 547 * Interfaces for parsing and handling DTrace version strings. Version binding
536 548 * is a feature of the D compiler that is handled completely independently of
537 549 * the DTrace kernel infrastructure, so the definitions are here in libdtrace.
538 550 * Version strings are compiled into an encoded uint32_t which can be compared
539 551 * using C comparison operators. Version definitions are found in dt_open.c.
540 552 */
541 553 #define DT_VERSION_STRMAX 16 /* enough for "255.4095.4095\0" */
542 554 #define DT_VERSION_MAJMAX 0xFF /* maximum major version number */
543 555 #define DT_VERSION_MINMAX 0xFFF /* maximum minor version number */
544 556 #define DT_VERSION_MICMAX 0xFFF /* maximum micro version number */
545 557
546 558 #define DT_VERSION_NUMBER(M, m, u) \
547 559 ((((M) & 0xFF) << 24) | (((m) & 0xFFF) << 12) | ((u) & 0xFFF))
548 560
549 561 #define DT_VERSION_MAJOR(v) (((v) & 0xFF000000) >> 24)
550 562 #define DT_VERSION_MINOR(v) (((v) & 0x00FFF000) >> 12)
551 563 #define DT_VERSION_MICRO(v) ((v) & 0x00000FFF)
552 564
553 565 extern char *dt_version_num2str(dt_version_t, char *, size_t);
554 566 extern int dt_version_str2num(const char *, dt_version_t *);
555 567 extern int dt_version_defined(dt_version_t);
556 568
557 569 /*
558 570 * Miscellaneous internal libdtrace interfaces. The definitions below are for
559 571 * libdtrace routines that do not yet merit their own separate header file.
560 572 */
561 573 extern char *dt_cpp_add_arg(dtrace_hdl_t *, const char *);
562 574 extern char *dt_cpp_pop_arg(dtrace_hdl_t *);
563 575
564 576 extern int dt_set_errno(dtrace_hdl_t *, int);
565 577 extern void dt_set_errmsg(dtrace_hdl_t *, const char *, const char *,
566 578 const char *, int, const char *, va_list);
567 579
568 580 extern int dt_ioctl(dtrace_hdl_t *, int, void *);
569 581 extern int dt_status(dtrace_hdl_t *, processorid_t);
570 582 extern long dt_sysconf(dtrace_hdl_t *, int);
571 583 extern ssize_t dt_write(dtrace_hdl_t *, int, const void *, size_t);
572 584 extern int dt_printf(dtrace_hdl_t *, FILE *, const char *, ...);
573 585
574 586 extern void *dt_zalloc(dtrace_hdl_t *, size_t);
575 587 extern void *dt_alloc(dtrace_hdl_t *, size_t);
576 588 extern void dt_free(dtrace_hdl_t *, void *);
577 589 extern void dt_difo_free(dtrace_hdl_t *, dtrace_difo_t *);
578 590
579 591 extern int dt_gmatch(const char *, const char *);
580 592 extern char *dt_basename(char *);
581 593
582 594 extern ulong_t dt_popc(ulong_t);
583 595 extern ulong_t dt_popcb(const ulong_t *, ulong_t);
584 596
585 597 extern int dt_buffered_enable(dtrace_hdl_t *);
586 598 extern int dt_buffered_flush(dtrace_hdl_t *, dtrace_probedata_t *,
587 599 const dtrace_recdesc_t *, const dtrace_aggdata_t *, uint32_t flags);
588 600 extern void dt_buffered_disable(dtrace_hdl_t *);
589 601 extern void dt_buffered_destroy(dtrace_hdl_t *);
590 602
591 603 extern uint64_t dt_stddev(uint64_t *, uint64_t);
592 604
593 605 extern int dt_options_load(dtrace_hdl_t *);
594 606
595 607 extern void dt_dprintf(const char *, ...);
596 608
597 609 extern void dt_setcontext(dtrace_hdl_t *, dtrace_probedesc_t *);
598 610 extern void dt_endcontext(dtrace_hdl_t *);
599 611
600 612 extern void dt_pragma(dt_node_t *);
601 613 extern int dt_reduce(dtrace_hdl_t *, dt_version_t);
602 614 extern void dt_cg(dt_pcb_t *, dt_node_t *);
603 615 extern dtrace_difo_t *dt_as(dt_pcb_t *);
604 616 extern void dt_dis(const dtrace_difo_t *, FILE *);
605 617
606 618 extern int dt_aggregate_go(dtrace_hdl_t *);
607 619 extern int dt_aggregate_init(dtrace_hdl_t *);
608 620 extern void dt_aggregate_destroy(dtrace_hdl_t *);
609 621
610 622 extern int dt_epid_lookup(dtrace_hdl_t *, dtrace_epid_t,
611 623 dtrace_eprobedesc_t **, dtrace_probedesc_t **);
612 624 extern void dt_epid_destroy(dtrace_hdl_t *);
613 625 extern int dt_aggid_lookup(dtrace_hdl_t *, dtrace_aggid_t, dtrace_aggdesc_t **);
614 626 extern void dt_aggid_destroy(dtrace_hdl_t *);
615 627
616 628 extern void *dt_format_lookup(dtrace_hdl_t *, int);
617 629 extern void dt_format_destroy(dtrace_hdl_t *);
618 630
619 631 extern const char *dt_strdata_lookup(dtrace_hdl_t *, int);
620 632 extern void dt_strdata_destroy(dtrace_hdl_t *);
621 633
622 634 extern int dt_print_quantize(dtrace_hdl_t *, FILE *,
623 635 const void *, size_t, uint64_t);
624 636 extern int dt_print_lquantize(dtrace_hdl_t *, FILE *,
625 637 const void *, size_t, uint64_t);
626 638 extern int dt_print_llquantize(dtrace_hdl_t *, FILE *,
627 639 const void *, size_t, uint64_t);
628 640 extern int dt_print_agg(const dtrace_aggdata_t *, void *);
629 641
630 642 extern int dt_handle(dtrace_hdl_t *, dtrace_probedata_t *);
631 643 extern int dt_handle_liberr(dtrace_hdl_t *,
632 644 const dtrace_probedata_t *, const char *);
633 645 extern int dt_handle_cpudrop(dtrace_hdl_t *, processorid_t,
634 646 dtrace_dropkind_t, uint64_t);
635 647 extern int dt_handle_status(dtrace_hdl_t *,
636 648 dtrace_status_t *, dtrace_status_t *);
637 649 extern int dt_handle_setopt(dtrace_hdl_t *, dtrace_setoptdata_t *);
638 650
639 651 extern int dt_lib_depend_add(dtrace_hdl_t *, dt_list_t *, const char *);
640 652 extern dt_lib_depend_t *dt_lib_depend_lookup(dt_list_t *, const char *);
641 653
642 654 extern dt_pcb_t *yypcb; /* pointer to current parser control block */
643 655 extern char yyintprefix; /* int token prefix for macros (+/-) */
644 656 extern char yyintsuffix[4]; /* int token suffix ([uUlL]*) */
645 657 extern int yyintdecimal; /* int token is decimal (1) or octal/hex (0) */
646 658 extern char yytext[]; /* lex input buffer */
647 659 extern int yylineno; /* lex line number */
648 660 extern int yydebug; /* lex debugging */
649 661 extern dt_node_t *yypragma; /* lex token list for control lines */
650 662
651 663 extern const dtrace_attribute_t _dtrace_maxattr; /* maximum attributes */
652 664 extern const dtrace_attribute_t _dtrace_defattr; /* default attributes */
653 665 extern const dtrace_attribute_t _dtrace_symattr; /* symbol ref attributes */
654 666 extern const dtrace_attribute_t _dtrace_typattr; /* type ref attributes */
655 667 extern const dtrace_attribute_t _dtrace_prvattr; /* provider attributes */
656 668 extern const dtrace_pattr_t _dtrace_prvdesc; /* provider attribute bundle */
657 669
658 670 extern const dt_version_t _dtrace_versions[]; /* array of valid versions */
659 671 extern const char *const _dtrace_version; /* current version string */
660 672
661 673 extern int _dtrace_strbuckets; /* number of hash buckets for strings */
662 674 extern int _dtrace_intbuckets; /* number of hash buckets for ints */
663 675 extern uint_t _dtrace_stkindent; /* default indent for stack/ustack */
664 676 extern uint_t _dtrace_pidbuckets; /* number of hash buckets for pids */
665 677 extern uint_t _dtrace_pidlrulim; /* number of proc handles to cache */
666 678 extern int _dtrace_debug; /* debugging messages enabled */
667 679 extern size_t _dtrace_bufsize; /* default dt_buf_create() size */
668 680 extern int _dtrace_argmax; /* default maximum probe arguments */
669 681
670 682 extern const char *_dtrace_libdir; /* default library directory */
671 683 extern const char *_dtrace_moddir; /* default kernel module directory */
672 684
673 685 #ifdef __cplusplus
674 686 }
675 687 #endif
676 688
677 689 #endif /* _DT_IMPL_H */
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