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177a8ead | 1 | // -*- C++ -*- |
b3104a15 | 2 | // Copyright (C) 2005-2015 Red Hat Inc. |
177a8ead FCE |
3 | // |
4 | // This file is part of systemtap, and is free software. You can | |
5 | // redistribute it and/or modify it under the terms of the GNU General | |
6 | // Public License (GPL); either version 2, or (at your option) any | |
7 | // later version. | |
8 | ||
9 | #ifndef SESSION_H | |
10 | #define SESSION_H | |
11 | ||
9456e4c1 | 12 | #include "config.h" |
52c2652f | 13 | #if ENABLE_NLS |
79bc39ab LB |
14 | #include <libintl.h> |
15 | #include <locale.h> | |
52c2652f | 16 | #endif |
9456e4c1 | 17 | |
aa4d21c0 | 18 | #include <list> |
177a8ead FCE |
19 | #include <string> |
20 | #include <vector> | |
21 | #include <iostream> | |
22 | #include <sstream> | |
23 | #include <map> | |
7e41d3dc | 24 | #include <set> |
985892de | 25 | #include <stdexcept> |
177a8ead | 26 | |
1d3a40b6 | 27 | extern "C" { |
2dce8c42 | 28 | #include <signal.h> |
1d3a40b6 DS |
29 | #include <elfutils/libdw.h> |
30 | } | |
31 | ||
3892d516 | 32 | #include "privilege.h" |
0d98c8da | 33 | #include "util.h" |
47d349b1 | 34 | #include "stringtable.h" |
177a8ead FCE |
35 | |
36 | // forward decls for all referenced systemtap types | |
dec33462 | 37 | class stap_hash; |
b9aa5bb4 | 38 | class match_node; |
177a8ead FCE |
39 | struct stapfile; |
40 | struct vardecl; | |
cfd621bc | 41 | struct token; |
177a8ead | 42 | struct functiondecl; |
b20febf3 FCE |
43 | struct derived_probe; |
44 | struct be_derived_probe_group; | |
a7fbce1f | 45 | struct generic_kprobe_derived_probe_group; |
dd225250 | 46 | struct hwbkpt_derived_probe_group; |
83ea76b1 | 47 | struct perf_derived_probe_group; |
888af770 | 48 | struct uprobe_derived_probe_group; |
935447c8 | 49 | struct utrace_derived_probe_group; |
a96d1db0 | 50 | struct itrace_derived_probe_group; |
935447c8 | 51 | struct task_finder_derived_probe_group; |
b20febf3 | 52 | struct timer_derived_probe_group; |
8d9609f5 | 53 | struct netfilter_derived_probe_group; |
b20febf3 FCE |
54 | struct profile_derived_probe_group; |
55 | struct mark_derived_probe_group; | |
0a6f5a3f | 56 | struct tracepoint_derived_probe_group; |
b20febf3 | 57 | struct hrtimer_derived_probe_group; |
604eef3b | 58 | struct procfs_derived_probe_group; |
f31a77f5 | 59 | struct dynprobe_derived_probe_group; |
177a8ead | 60 | struct embeddedcode; |
be87f53a | 61 | struct stapdfa; |
b9aa5bb4 | 62 | class translator_output; |
177a8ead FCE |
63 | struct unparser; |
64 | struct semantic_error; | |
405b71b8 | 65 | struct module_cache; |
f80d9004 | 66 | struct update_visitor; |
eff14db3 | 67 | struct compile_server_cache; |
177a8ead | 68 | |
177a8ead FCE |
69 | // XXX: a generalized form of this descriptor could be associated with |
70 | // a vardecl instead of out here at the systemtap_session level. | |
71 | struct statistic_decl | |
72 | { | |
73 | statistic_decl() | |
dff50e09 | 74 | : type(none), |
177a8ead | 75 | linear_low(0), linear_high(0), linear_step(0) |
dff50e09 | 76 | {} |
177a8ead | 77 | enum { none, linear, logarithmic } type; |
177a8ead FCE |
78 | int64_t linear_low; |
79 | int64_t linear_high; | |
80 | int64_t linear_step; | |
07c17d67 GH |
81 | bool operator==(statistic_decl const & other) |
82 | { | |
dff50e09 | 83 | return type == other.type |
07c17d67 GH |
84 | && linear_low == other.linear_low |
85 | && linear_high == other.linear_high | |
86 | && linear_step == other.linear_step; | |
87 | } | |
177a8ead FCE |
88 | }; |
89 | ||
fe410f52 SM |
90 | struct macrodecl; // defined in parse.h |
91 | ||
6b7d7185 JL |
92 | struct parse_error: public std::runtime_error |
93 | { | |
94 | const token* tok; | |
95 | bool skip_some; | |
78ab2de3 | 96 | const parse_error *chain; |
9e1a2390 JL |
97 | const std::string errsrc; |
98 | ~parse_error () throw () {} | |
f0454224 JL |
99 | parse_error (const std::string& src, const std::string& msg): |
100 | runtime_error (msg), tok (0), skip_some (true), chain(0), errsrc(src) {} | |
101 | parse_error (const std::string& src, const std::string& msg, const token* t): | |
102 | runtime_error (msg), tok (t), skip_some (true), chain(0), errsrc(src) {} | |
103 | parse_error (const std::string& src, const std::string& msg, bool skip): | |
104 | runtime_error (msg), tok (0), skip_some (skip), chain(0), errsrc(src) {} | |
9e1a2390 JL |
105 | |
106 | std::string errsrc_chain(void) const | |
107 | { | |
108 | return errsrc + (chain ? "|" + chain->errsrc_chain() : ""); | |
109 | } | |
6b7d7185 JL |
110 | }; |
111 | ||
177a8ead FCE |
112 | struct systemtap_session |
113 | { | |
abc15290 JS |
114 | private: |
115 | // disable implicit constructors by not implementing these | |
116 | systemtap_session (const systemtap_session& other); | |
117 | systemtap_session& operator= (const systemtap_session& other); | |
118 | ||
119 | // copy constructor used by ::clone() | |
120 | systemtap_session (const systemtap_session& other, | |
121 | const std::string& arch, | |
122 | const std::string& kern); | |
123 | ||
124 | public: | |
177a8ead | 125 | systemtap_session (); |
b0e5fa85 | 126 | ~systemtap_session (); |
aa4d21c0 | 127 | |
b96901b7 CM |
128 | // To reset the tmp_dir |
129 | void create_tmp_dir(); | |
130 | void remove_tmp_dir(); | |
131 | void reset_tmp_dir(); | |
132 | ||
28f569c2 | 133 | // NB: It is very important for all of the above (and below) fields |
85007c04 | 134 | // to be cleared in the systemtap_session ctor (session.cxx). |
e2012a7a | 135 | void setup_kernel_release (const char* kstr); |
bb153adb | 136 | void insert_loaded_modules (); |
e2012a7a DB |
137 | |
138 | // command line parsing | |
139 | int parse_cmdline (int argc, char * const argv []); | |
45402f2a | 140 | bool parse_cmdline_runtime (const std::string& opt_runtime); |
b58abde1 | 141 | std::string version_string (); |
e2012a7a DB |
142 | void version (); |
143 | void usage (int exitcode); | |
144 | void check_options (int argc, char * const argv []); | |
145 | static const char* morehelp; | |
177a8ead | 146 | |
aa4d21c0 | 147 | // NB: It is very important for all of the above (and below) fields |
85007c04 | 148 | // to be cleared in the systemtap_session ctor (session.cxx). |
aa4d21c0 | 149 | |
177a8ead | 150 | // command line args |
e2012a7a DB |
151 | std::string script_file; // FILE |
152 | std::string cmdline_script; // -e PROGRAM | |
ba48c27a | 153 | std::vector<std::string> additional_scripts; // -E SCRIPT |
e2012a7a | 154 | bool have_script; |
177a8ead | 155 | std::vector<std::string> include_path; |
2fad97fd | 156 | int include_arg_start; |
08fce398 | 157 | std::vector<std::string> c_macros; |
177a8ead | 158 | std::vector<std::string> args; |
633e5ca7 | 159 | std::vector<std::string> kbuildflags; // -B var=val |
bb25d08f | 160 | std::vector<std::string> globalopts; // -G var=val |
633e5ca7 | 161 | std::vector<std::string> modinfos; // --modinfo tag=value |
8dfad013 | 162 | |
e2012a7a | 163 | std::string release; |
177a8ead | 164 | std::string kernel_release; |
197a4d62 | 165 | std::string kernel_base_release; |
7471ea1f | 166 | std::string kernel_build_tree; |
d4393459 | 167 | std::string kernel_source_tree; |
ac4f2837 | 168 | std::vector<std::string> kernel_extra_cflags; |
45a63356 | 169 | std::map<interned_string,interned_string> kernel_config; |
47d349b1 FCE |
170 | std::set<interned_string> kernel_exports; |
171 | std::set<interned_string> kernel_functions; | |
8dfad013 JS |
172 | int parse_kernel_config (); |
173 | int parse_kernel_exports (); | |
2a639817 | 174 | int parse_kernel_functions (); |
8dfad013 | 175 | |
05fb3e0c WF |
176 | std::string sysroot; |
177 | std::map<std::string,std::string> sysenv; | |
178 | bool update_release_sysroot; | |
e2012a7a | 179 | std::string machine; |
44ce8ed5 | 180 | std::string architecture; |
50f2545f | 181 | bool native_build; |
177a8ead | 182 | std::string runtime_path; |
2fad97fd | 183 | bool runtime_specified; |
1b78aef5 | 184 | std::string data_path; |
177a8ead | 185 | std::string module_name; |
4441e344 | 186 | const std::string module_filename() const; |
de0db58a | 187 | std::string stapconf_name; |
177a8ead | 188 | std::string output_file; |
701c41be | 189 | std::string size_option; |
177a8ead | 190 | std::string cmd; |
48cd804a | 191 | std::string cmd_file(); |
db135493 | 192 | std::string compatible; // use (strverscmp(s.compatible.c_str(), "N.M") >= 0) |
177a8ead FCE |
193 | int target_pid; |
194 | int last_pass; | |
e0b4e89d | 195 | unsigned perpass_verbose[5]; |
b0ee93c4 | 196 | unsigned verbose; |
a9e8f7e0 | 197 | bool timing; |
e2012a7a | 198 | bool save_module; |
50f92d4e | 199 | bool save_uprobes; |
5c854d7c | 200 | bool modname_given; |
177a8ead FCE |
201 | bool keep_tmpdir; |
202 | bool guru_mode; | |
203 | bool bulk_mode; | |
cbfbbf69 | 204 | bool unoptimized; |
a9e8f7e0 | 205 | bool suppress_warnings; |
57a56e00 | 206 | bool panic_warnings; |
177a8ead | 207 | int buffer_size; |
c3a3c0c9 | 208 | bool tapset_compile_coverage; |
6274464e | 209 | bool need_uprobes; |
08badca8 | 210 | bool need_unwind; |
8af41ec2 | 211 | bool need_symbols; |
ee533a58 | 212 | bool need_lines; |
474d17ad | 213 | std::string uprobes_path; |
7d26ee02 | 214 | std::string uprobes_hash; |
2fa2a091 | 215 | bool load_only; // flight recorder mode |
42e38653 | 216 | privilege_t privilege; |
73f52eb4 | 217 | bool privilege_set; |
a07a2c28 | 218 | bool systemtap_v_check; |
305fac7d | 219 | bool tmpdir_opt_set; |
6120441d | 220 | bool monitor; |
09ddc83c | 221 | int monitor_interval; |
bba368c5 JL |
222 | |
223 | enum | |
224 | { dump_none, // no dumping requested | |
225 | dump_probe_types, // dump standard tapset probes | |
226 | dump_probe_aliases, // dump tapset probe aliases | |
227 | dump_functions, // dump tapset functions | |
228 | dump_matched_probes, // dump matching probes (-l) | |
229 | dump_matched_probes_vars // dump matching probes and their variables (-L) | |
230 | } dump_mode; | |
231 | ||
232 | // Pattern to match against in listing mode (-l/-L) | |
233 | std::string dump_matched_pattern; | |
234 | ||
ea60076d | 235 | int download_dbinfo; |
7baf48e9 | 236 | bool suppress_handler_errors; |
152fa051 | 237 | bool suppress_time_limits; |
a8c9365c | 238 | bool color_errors; |
11a046b7 DS |
239 | bool interactive_mode; |
240 | bool pass_1a_complete; | |
d5d3a90b | 241 | |
6d3599fc | 242 | enum { color_never, color_auto, color_always } color_mode; |
8c1cf686 | 243 | enum { prologue_searching_never, prologue_searching_auto, prologue_searching_always } prologue_searching_mode; |
6d3599fc | 244 | |
4441e344 | 245 | enum { kernel_runtime, dyninst_runtime } runtime_mode; |
ac3af990 | 246 | bool runtime_usermode_p() const { return runtime_mode == dyninst_runtime; } |
4441e344 | 247 | |
2dce8c42 | 248 | // NB: It is very important for all of the above (and below) fields |
85007c04 | 249 | // to be cleared in the systemtap_session ctor (session.cxx). |
2dce8c42 DB |
250 | |
251 | // Client/server | |
48e74294 | 252 | #if HAVE_NSS |
44edbcd6 | 253 | static bool NSPR_Initialized; // only once for all sessions |
3d9dfde6 | 254 | void NSPR_init (); |
48e74294 | 255 | #endif |
e2012a7a | 256 | bool client_options; |
372c6458 | 257 | std::string client_options_disallowed_for_unprivileged; |
2dce8c42 DB |
258 | std::vector<std::string> server_status_strings; |
259 | std::vector<std::string> specified_servers; | |
c77af0d0 | 260 | std::string server_trust_spec; |
2fad97fd | 261 | std::vector<std::string> server_args; |
920be590 | 262 | std::string winning_server; |
eff14db3 | 263 | compile_server_cache* server_cache; |
cd1418c7 | 264 | std::vector<std::string> mok_fingerprints; |
4e78c716 DB |
265 | std::string auto_privilege_level_msg; |
266 | std::vector<std::string> auto_server_msgs; | |
b3367f63 DS |
267 | |
268 | bool modules_must_be_signed(); | |
269 | void get_mok_info(); | |
ce286ff0 | 270 | |
44edbcd6 JS |
271 | // NB: It is very important for all of the above (and below) fields |
272 | // to be cleared in the systemtap_session ctor (session.cxx). | |
273 | ||
274 | // Mechanism for retrying compilation with a compile server should it fail due | |
275 | // to lack of resources on the local host. | |
276 | // Once it has been decided not to try the server (e.g. syntax error), | |
277 | // that decision cannot be changed. | |
278 | int try_server_status; | |
279 | bool use_server_on_error; | |
280 | ||
3e1ec884 | 281 | enum { try_server_unset, dont_try_server, do_try_server }; |
44edbcd6 JS |
282 | void init_try_server (); |
283 | void set_try_server (int t = do_try_server); | |
284 | bool try_server () const { return try_server_status == do_try_server; } | |
285 | ||
286 | // NB: It is very important for all of the above (and below) fields | |
287 | // to be cleared in the systemtap_session ctor (session.cxx). | |
288 | ||
daa75206 JS |
289 | // Remote execution |
290 | std::vector<std::string> remote_uris; | |
756cfd49 | 291 | bool use_remote_prefix; |
ebff2ed0 JS |
292 | typedef std::map<std::pair<std::string, std::string>, systemtap_session*> session_map_t; |
293 | session_map_t subsessions; | |
294 | systemtap_session* clone(const std::string& arch, const std::string& release); | |
daa75206 | 295 | |
28f569c2 | 296 | // NB: It is very important for all of the above (and below) fields |
85007c04 | 297 | // to be cleared in the systemtap_session ctor (session.cxx). |
28f569c2 | 298 | |
1b78aef5 | 299 | // Cache data |
d105f664 JS |
300 | bool use_cache; // control all caching |
301 | bool use_script_cache; // control caching of pass-3/4 output | |
302 | bool poison_cache; // consider the cache to be write-only | |
303 | std::string cache_path; // usually ~/.systemtap/cache | |
304 | std::string hash_path; // path to the cached script module | |
305 | std::string stapconf_path; // path to the cached stapconf | |
dec33462 | 306 | stap_hash *base_hash; // hash common to all caching |
1b78aef5 | 307 | |
3bd0d4df RA |
308 | // Skip bad $ vars |
309 | bool skip_badvars; | |
310 | ||
28f569c2 | 311 | // NB: It is very important for all of the above (and below) fields |
85007c04 | 312 | // to be cleared in the systemtap_session ctor (session.cxx). |
28f569c2 | 313 | |
177a8ead FCE |
314 | // temporary directory for module builds etc. |
315 | // hazardous - it is "rm -rf"'d at exit | |
316 | std::string tmpdir; | |
317 | std::string translated_source; // C source code | |
318 | ||
319 | match_node* pattern_root; | |
320 | void register_library_aliases(); | |
321 | ||
f7a557ae | 322 | // data for various preprocessor library macros |
fe410f52 | 323 | std::map<std::string, macrodecl*> library_macros; |
f7a557ae | 324 | |
177a8ead | 325 | // parse trees for the various script files |
ba48c27a | 326 | std::vector<stapfile*> user_files; |
177a8ead FCE |
327 | std::vector<stapfile*> library_files; |
328 | ||
f80d9004 JS |
329 | // filters to run over all code before symbol resolution |
330 | // e.g. @cast expansion | |
331 | std::vector<update_visitor*> code_filters; | |
332 | ||
177a8ead FCE |
333 | // resolved globals/functions/probes for the run as a whole |
334 | std::vector<stapfile*> files; | |
335 | std::vector<vardecl*> globals; | |
f76427a2 | 336 | std::map<std::string,functiondecl*> functions; |
3689db05 | 337 | // probe counter name -> probe associated with counter |
aa2c662f | 338 | std::vector<std::pair<std::string,std::string> > perf_counters; |
b20febf3 | 339 | std::vector<derived_probe*> probes; // see also *_probes groups below |
177a8ead | 340 | std::vector<embeddedcode*> embeds; |
47d349b1 | 341 | std::map<interned_string, statistic_decl> stat_decls; |
c3a3c0c9 WC |
342 | // track things that are removed |
343 | std::vector<vardecl*> unused_globals; | |
344 | std::vector<derived_probe*> unused_probes; // see also *_probes groups below | |
345 | std::vector<functiondecl*> unused_functions; | |
177a8ead | 346 | |
60cf5fae SM |
347 | // resolved/compiled regular expressions for the run |
348 | std::map<std::string, stapdfa*> dfas; | |
349 | unsigned dfa_counter; // used to give unique names | |
350 | unsigned dfa_maxstate; // used for subexpression-tracking data structure | |
351 | unsigned dfa_maxtag; // ditto | |
26c2e4c2 | 352 | bool need_tagged_dfa; // triggered by /* pragma:tagged_dfa */ |
60cf5fae | 353 | |
b20febf3 FCE |
354 | // Every probe in these groups must also appear in the |
355 | // session.probes vector. | |
356 | be_derived_probe_group* be_derived_probes; | |
a7fbce1f | 357 | generic_kprobe_derived_probe_group* generic_kprobe_derived_probes; |
dd225250 | 358 | hwbkpt_derived_probe_group* hwbkpt_derived_probes; |
83ea76b1 | 359 | perf_derived_probe_group* perf_derived_probes; |
888af770 | 360 | uprobe_derived_probe_group* uprobe_derived_probes; |
935447c8 | 361 | utrace_derived_probe_group* utrace_derived_probes; |
a96d1db0 | 362 | itrace_derived_probe_group* itrace_derived_probes; |
935447c8 | 363 | task_finder_derived_probe_group* task_finder_derived_probes; |
b20febf3 | 364 | timer_derived_probe_group* timer_derived_probes; |
8d9609f5 | 365 | netfilter_derived_probe_group* netfilter_derived_probes; |
b20febf3 FCE |
366 | profile_derived_probe_group* profile_derived_probes; |
367 | mark_derived_probe_group* mark_derived_probes; | |
0a6f5a3f | 368 | tracepoint_derived_probe_group* tracepoint_derived_probes; |
b20febf3 | 369 | hrtimer_derived_probe_group* hrtimer_derived_probes; |
604eef3b | 370 | procfs_derived_probe_group* procfs_derived_probes; |
f31a77f5 | 371 | dynprobe_derived_probe_group* dynprobe_derived_probes; |
28f569c2 | 372 | |
f9355a6c | 373 | // NB: It is very important for all of the above (and below) fields |
85007c04 | 374 | // to be cleared in the systemtap_session ctor (session.cxx). |
177a8ead FCE |
375 | |
376 | // unparser data | |
377 | translator_output* op; | |
a4b9c3b3 | 378 | std::vector<translator_output*> auxiliary_outputs; |
177a8ead FCE |
379 | unparser* up; |
380 | ||
84048984 FCE |
381 | // some symbol addresses |
382 | // XXX: these belong elsewhere; perhaps the dwflpp instance | |
383 | Dwarf_Addr sym_kprobes_text_start; | |
384 | Dwarf_Addr sym_kprobes_text_end; | |
385 | Dwarf_Addr sym_stext; | |
1d3a40b6 | 386 | |
a8368458 | 387 | // List of libdwfl module names to extract symbol/unwind data for. |
1a0dbc5a | 388 | std::set<std::string> unwindsym_modules; |
ef06c938 | 389 | bool unwindsym_ldd; |
cbf5ebe1 | 390 | struct module_cache* module_cache; |
ecd129af | 391 | std::vector<std::string> build_ids; |
a8368458 | 392 | |
3d0a328d JS |
393 | // Secret benchmarking options |
394 | unsigned long benchmark_sdt_loops; | |
395 | unsigned long benchmark_sdt_threads; | |
396 | ||
28f569c2 | 397 | // NB: It is very important for all of the above (and below) fields |
85007c04 | 398 | // to be cleared in the systemtap_session ctor (session.cxx). |
28f569c2 | 399 | |
ab54fa85 | 400 | std::set<std::string> seen_warnings; |
1c1f304d | 401 | int suppressed_warnings; |
9e1a2390 JL |
402 | std::map<std::string, int> seen_errors; // NB: can change to a set if threshold is 1 |
403 | int suppressed_errors; | |
7ac01ea0 JL |
404 | int warningerr_count; // see comment in systemtap_session::print_error |
405 | ||
406 | // Returns number of critical errors (not counting those part of warnings) | |
407 | unsigned num_errors () | |
408 | { | |
409 | return (seen_errors.size() // all the errors we've encountered | |
410 | - warningerr_count // except those considered warningerrs | |
411 | + (panic_warnings ? seen_warnings.size() : 0)); // plus warnings if -W given | |
412 | } | |
cfd621bc | 413 | |
5f429a70 JS |
414 | std::set<std::string> rpms_checked; // enlisted by filename+rpm_type |
415 | std::set<std::string> rpms_to_install; // resulting rpms | |
2ed04863 | 416 | |
80d74c6b | 417 | translator_output* op_create_auxiliary(bool trailer_p = false); |
a4b9c3b3 | 418 | |
b3104a15 FCE |
419 | int target_namespaces_pid; |
420 | ||
cfd621bc FCE |
421 | const token* last_token; |
422 | void print_token (std::ostream& o, const token* tok); | |
177a8ead | 423 | void print_error (const semantic_error& e); |
9e1a2390 | 424 | std::string build_error_msg (const semantic_error& e); |
1b1b4ceb | 425 | void print_error_source (std::ostream&, std::string&, const token* tok); |
48f6d208 | 426 | void print_error_details (std::ostream&, std::string&, const semantic_error&); |
6b7d7185 | 427 | void print_error (const parse_error &pe, |
9e1a2390 | 428 | const token* tok, |
7ac01ea0 JL |
429 | const std::string &input_name, |
430 | bool is_warningerr = false); | |
9e1a2390 JL |
431 | std::string build_error_msg (const parse_error &pe, |
432 | const token* tok, | |
433 | const std::string &input_name); | |
cfd621bc | 434 | void print_warning (const std::string& w, const token* tok = 0); |
aa4d21c0 | 435 | void printscript(std::ostream& o); |
678b7381 | 436 | void report_suppression(); |
b20febf3 | 437 | |
28f569c2 | 438 | // NB: It is very important for all of the above (and below) fields |
85007c04 | 439 | // to be cleared in the systemtap_session ctor (session.cxx). |
85007c04 | 440 | |
eada930e JL |
441 | std::string colorize(const std::string& str, const std::string& type); |
442 | std::string colorize(const token* tok); | |
443 | std::string parse_stap_color(const std::string& type); | |
4e78c716 DB |
444 | |
445 | // Some automatic options settings require explanation. | |
446 | void enable_auto_server (const std::string &message); | |
447 | void explain_auto_options(); | |
ba48c27a AJ |
448 | |
449 | bool is_user_file (const std::string& name); | |
1ee0d3ba | 450 | bool is_primary_probe (derived_probe *dp); |
2aca52e2 | 451 | |
11a046b7 DS |
452 | void clear_script_data(); |
453 | ||
b3104a15 FCE |
454 | // NB: It is very important for all of the above (and below) fields |
455 | // to be cleared in the systemtap_session ctor (session.cxx). | |
d4d892e1 | 456 | }; |
177a8ead | 457 | |
e2d0f787 JS |
458 | struct exit_exception: public std::runtime_error |
459 | { | |
460 | int rc; | |
461 | exit_exception (int rc): | |
462 | runtime_error (_F("early exit requested, rc=%d", rc)), rc(rc) {} | |
463 | }; | |
464 | ||
465 | ||
49abf162 | 466 | // global counter of SIGINT/SIGTERM's received |
85007c04 DB |
467 | extern int pending_interrupts; |
468 | ||
985892de CM |
469 | // Interrupt exception subclass for catching |
470 | // interrupts (i.e. ctrl-c). | |
471 | struct interrupt_exception: public std::runtime_error | |
472 | { | |
473 | interrupt_exception (): | |
474 | runtime_error (_("interrupt received")){} | |
475 | }; | |
476 | ||
e19ebcf7 CM |
477 | void assert_no_interrupts(); |
478 | ||
177a8ead | 479 | #endif // SESSION_H |
73267b89 JS |
480 | |
481 | /* vim: set sw=2 ts=8 cino=>4,n-2,{2,^-2,t0,(0,u0,w1,M1 : */ |