/* Generic static probe support for GDB. Copyright (C) 2012-2017 Free Software Foundation, Inc. This file is part of GDB. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ #include "defs.h" #include "probe.h" #include "command.h" #include "cli/cli-cmds.h" #include "cli/cli-utils.h" #include "objfiles.h" #include "symtab.h" #include "progspace.h" #include "filenames.h" #include "linespec.h" #include "gdb_regex.h" #include "frame.h" #include "arch-utils.h" #include "value.h" #include "ax.h" #include "ax-gdb.h" #include "location.h" #include <ctype.h> #include <algorithm> #include "common/gdb_optional.h" /* A helper for parse_probes that decodes a probe specification in SEARCH_PSPACE. It appends matching SALs to RESULT. */ static void parse_probes_in_pspace (const struct probe_ops *probe_ops, struct program_space *search_pspace, const char *objfile_namestr, const char *provider, const char *name, std::vector<symtab_and_line> *result) { struct objfile *objfile; ALL_PSPACE_OBJFILES (search_pspace, objfile) { if (!objfile->sf || !objfile->sf->sym_probe_fns) continue; if (objfile_namestr && FILENAME_CMP (objfile_name (objfile), objfile_namestr) != 0 && FILENAME_CMP (lbasename (objfile_name (objfile)), objfile_namestr) != 0) continue; const std::vector<probe *> &probes = objfile->sf->sym_probe_fns->sym_get_probes (objfile); for (probe *p : probes) { if (probe_ops != &probe_ops_any && p->pops != probe_ops) continue; if (provider && strcmp (p->provider, provider) != 0) continue; if (strcmp (p->name, name) != 0) continue; symtab_and_line sal; sal.pc = get_probe_address (p, objfile); sal.explicit_pc = 1; sal.section = find_pc_overlay (sal.pc); sal.pspace = search_pspace; sal.probe = p; sal.objfile = objfile; result->push_back (std::move (sal)); } } } /* See definition in probe.h. */ std::vector<symtab_and_line> parse_probes (const struct event_location *location, struct program_space *search_pspace, struct linespec_result *canonical) { char *arg_end, *arg; char *objfile_namestr = NULL, *provider = NULL, *name, *p; const struct probe_ops *probe_ops; const char *arg_start, *cs; gdb_assert (event_location_type (location) == PROBE_LOCATION); arg_start = get_probe_location (location); cs = arg_start; probe_ops = probe_linespec_to_ops (&cs); if (probe_ops == NULL) error (_("'%s' is not a probe linespec"), arg_start); arg = (char *) cs; arg = skip_spaces (arg); if (!*arg) error (_("argument to `%s' missing"), arg_start); arg_end = skip_to_space (arg); /* We make a copy here so we can write over parts with impunity. */ std::string copy (arg, arg_end - arg); arg = ©[0]; /* Extract each word from the argument, separated by ":"s. */ p = strchr (arg, ':'); if (p == NULL) { /* This is `-p name'. */ name = arg; } else { char *hold = p + 1; *p = '\0'; p = strchr (hold, ':'); if (p == NULL) { /* This is `-p provider:name'. */ provider = arg; name = hold; } else { /* This is `-p objfile:provider:name'. */ *p = '\0'; objfile_namestr = arg; provider = hold; name = p + 1; } } if (*name == '\0') error (_("no probe name specified")); if (provider && *provider == '\0') error (_("invalid provider name")); if (objfile_namestr && *objfile_namestr == '\0') error (_("invalid objfile name")); std::vector<symtab_and_line> result; if (search_pspace != NULL) { parse_probes_in_pspace (probe_ops, search_pspace, objfile_namestr, provider, name, &result); } else { struct program_space *pspace; ALL_PSPACES (pspace) parse_probes_in_pspace (probe_ops, pspace, objfile_namestr, provider, name, &result); } if (result.empty ()) { throw_error (NOT_FOUND_ERROR, _("No probe matching objfile=`%s', provider=`%s', name=`%s'"), objfile_namestr ? objfile_namestr : _("<any>"), provider ? provider : _("<any>"), name); } if (canonical) { std::string canon (arg_start, arg_end - arg_start); canonical->special_display = 1; canonical->pre_expanded = 1; canonical->location = new_probe_location (canon.c_str ()); } return result; } /* See definition in probe.h. */ std::vector<probe *> find_probes_in_objfile (struct objfile *objfile, const char *provider, const char *name) { std::vector<probe *> result; if (!objfile->sf || !objfile->sf->sym_probe_fns) return result; const std::vector<probe *> &probes = objfile->sf->sym_probe_fns->sym_get_probes (objfile); for (probe *p : probes) { if (strcmp (p->provider, provider) != 0) continue; if (strcmp (p->name, name) != 0) continue; result.push_back (p); } return result; } /* See definition in probe.h. */ struct bound_probe find_probe_by_pc (CORE_ADDR pc) { struct objfile *objfile; struct bound_probe result; result.objfile = NULL; result.probe = NULL; ALL_OBJFILES (objfile) { if (!objfile->sf || !objfile->sf->sym_probe_fns || objfile->sect_index_text == -1) continue; /* If this proves too inefficient, we can replace with a hash. */ const std::vector<probe *> &probes = objfile->sf->sym_probe_fns->sym_get_probes (objfile); for (probe *p : probes) if (get_probe_address (p, objfile) == pc) { result.objfile = objfile; result.probe = p; return result; } } return result; } /* Make a vector of probes matching OBJNAME, PROVIDER, and PROBE_NAME. If POPS is not NULL, only probes of this certain probe_ops will match. Each argument is a regexp, or NULL, which matches anything. */ static std::vector<bound_probe> collect_probes (const std::string &objname, const std::string &provider, const std::string &probe_name, const struct probe_ops *pops) { struct objfile *objfile; std::vector<bound_probe> result; gdb::optional<compiled_regex> obj_pat, prov_pat, probe_pat; if (!provider.empty ()) prov_pat.emplace (provider.c_str (), REG_NOSUB, _("Invalid provider regexp")); if (!probe_name.empty ()) probe_pat.emplace (probe_name.c_str (), REG_NOSUB, _("Invalid probe regexp")); if (!objname.empty ()) obj_pat.emplace (objname.c_str (), REG_NOSUB, _("Invalid object file regexp")); ALL_OBJFILES (objfile) { if (! objfile->sf || ! objfile->sf->sym_probe_fns) continue; if (obj_pat) { if (obj_pat->exec (objfile_name (objfile), 0, NULL, 0) != 0) continue; } const std::vector<probe *> &probes = objfile->sf->sym_probe_fns->sym_get_probes (objfile); for (probe *p : probes) { if (pops != NULL && p->pops != pops) continue; if (prov_pat && prov_pat->exec (p->provider, 0, NULL, 0) != 0) continue; if (probe_pat && probe_pat->exec (p->name, 0, NULL, 0) != 0) continue; result.emplace_back (p, objfile); } } return result; } /* A qsort comparison function for bound_probe_s objects. */ static bool compare_probes (const bound_probe &a, const bound_probe &b) { int v; v = strcmp (a.probe->provider, b.probe->provider); if (v != 0) return v < 0; v = strcmp (a.probe->name, b.probe->name); if (v != 0) return v < 0; if (a.probe->address != b.probe->address) return a.probe->address < b.probe->address; return strcmp (objfile_name (a.objfile), objfile_name (b.objfile)) < 0; } /* Helper function that generate entries in the ui_out table being crafted by `info_probes_for_ops'. */ static void gen_ui_out_table_header_info (const std::vector<bound_probe> &probes, const struct probe_ops *p) { /* `headings' refers to the names of the columns when printing `info probes'. */ VEC (info_probe_column_s) *headings = NULL; struct cleanup *c; info_probe_column_s *column; size_t headings_size; int ix; gdb_assert (p != NULL); if (p->gen_info_probes_table_header == NULL && p->gen_info_probes_table_values == NULL) return; gdb_assert (p->gen_info_probes_table_header != NULL && p->gen_info_probes_table_values != NULL); c = make_cleanup (VEC_cleanup (info_probe_column_s), &headings); p->gen_info_probes_table_header (&headings); headings_size = VEC_length (info_probe_column_s, headings); for (ix = 0; VEC_iterate (info_probe_column_s, headings, ix, column); ++ix) { size_t size_max = strlen (column->print_name); for (const bound_probe &probe : probes) { /* `probe_fields' refers to the values of each new field that this probe will display. */ VEC (const_char_ptr) *probe_fields = NULL; struct cleanup *c2; const char *val; int kx; if (probe.probe->pops != p) continue; c2 = make_cleanup (VEC_cleanup (const_char_ptr), &probe_fields); p->gen_info_probes_table_values (probe.probe, &probe_fields); gdb_assert (VEC_length (const_char_ptr, probe_fields) == headings_size); for (kx = 0; VEC_iterate (const_char_ptr, probe_fields, kx, val); ++kx) { /* It is valid to have a NULL value here, which means that the backend does not have something to write and this particular field should be skipped. */ if (val == NULL) continue; size_max = std::max (strlen (val), size_max); } do_cleanups (c2); } current_uiout->table_header (size_max, ui_left, column->field_name, column->print_name); } do_cleanups (c); } /* Helper function to print not-applicable strings for all the extra columns defined in a probe_ops. */ static void print_ui_out_not_applicables (const struct probe_ops *pops) { struct cleanup *c; VEC (info_probe_column_s) *headings = NULL; info_probe_column_s *column; int ix; if (pops->gen_info_probes_table_header == NULL) return; c = make_cleanup (VEC_cleanup (info_probe_column_s), &headings); pops->gen_info_probes_table_header (&headings); for (ix = 0; VEC_iterate (info_probe_column_s, headings, ix, column); ++ix) current_uiout->field_string (column->field_name, _("n/a")); do_cleanups (c); } /* Helper function to print extra information about a probe and an objfile represented by PROBE. */ static void print_ui_out_info (struct probe *probe) { int ix; int j = 0; /* `values' refers to the actual values of each new field in the output of `info probe'. `headings' refers to the names of each new field. */ VEC (const_char_ptr) *values = NULL; VEC (info_probe_column_s) *headings = NULL; info_probe_column_s *column; struct cleanup *c; gdb_assert (probe != NULL); gdb_assert (probe->pops != NULL); if (probe->pops->gen_info_probes_table_header == NULL && probe->pops->gen_info_probes_table_values == NULL) return; gdb_assert (probe->pops->gen_info_probes_table_header != NULL && probe->pops->gen_info_probes_table_values != NULL); c = make_cleanup (VEC_cleanup (info_probe_column_s), &headings); make_cleanup (VEC_cleanup (const_char_ptr), &values); probe->pops->gen_info_probes_table_header (&headings); probe->pops->gen_info_probes_table_values (probe, &values); gdb_assert (VEC_length (info_probe_column_s, headings) == VEC_length (const_char_ptr, values)); for (ix = 0; VEC_iterate (info_probe_column_s, headings, ix, column); ++ix) { const char *val = VEC_index (const_char_ptr, values, j++); if (val == NULL) current_uiout->field_skip (column->field_name); else current_uiout->field_string (column->field_name, val); } do_cleanups (c); } /* Helper function that returns the number of extra fields which POPS will need. */ static int get_number_extra_fields (const struct probe_ops *pops) { VEC (info_probe_column_s) *headings = NULL; struct cleanup *c; int n; if (pops->gen_info_probes_table_header == NULL) return 0; c = make_cleanup (VEC_cleanup (info_probe_column_s), &headings); pops->gen_info_probes_table_header (&headings); n = VEC_length (info_probe_column_s, headings); do_cleanups (c); return n; } /* Helper function that returns 1 if there is a probe in PROBES featuring the given POPS. It returns 0 otherwise. */ static int exists_probe_with_pops (const std::vector<bound_probe> &probes, const struct probe_ops *pops) { struct bound_probe *probe; int ix; for (const bound_probe &probe : probes) if (probe.probe->pops == pops) return 1; return 0; } /* Helper function that parses a probe linespec of the form [PROVIDER [PROBE [OBJNAME]]] from the provided string STR. */ static void parse_probe_linespec (const char *str, std::string *provider, std::string *probe_name, std::string *objname) { *probe_name = *objname = ""; *provider = extract_arg (&str); if (!provider->empty ()) { *probe_name = extract_arg (&str); if (!probe_name->empty ()) *objname = extract_arg (&str); } } /* See comment in probe.h. */ void info_probes_for_ops (const char *arg, int from_tty, const struct probe_ops *pops) { std::string provider, probe_name, objname; int any_found; int ui_out_extra_fields = 0; size_t size_addr; size_t size_name = strlen ("Name"); size_t size_objname = strlen ("Object"); size_t size_provider = strlen ("Provider"); size_t size_type = strlen ("Type"); struct gdbarch *gdbarch = get_current_arch (); parse_probe_linespec (arg, &provider, &probe_name, &objname); std::vector<bound_probe> probes = collect_probes (objname, provider, probe_name, pops); if (pops == NULL) { /* If the probe_ops is NULL, it means the user has requested a "simple" `info probes', i.e., she wants to print all information about all probes. For that, we have to identify how many extra fields we will need to add in the ui_out table. To do that, we iterate over all probe_ops, querying each one about its extra fields, and incrementing `ui_out_extra_fields' to reflect that number. But note that we ignore the probe_ops for which no probes are defined with the given search criteria. */ for (const probe_ops *po : all_probe_ops) if (exists_probe_with_pops (probes, po)) ui_out_extra_fields += get_number_extra_fields (po); } else ui_out_extra_fields = get_number_extra_fields (pops); { ui_out_emit_table table_emitter (current_uiout, 5 + ui_out_extra_fields, probes.size (), "StaticProbes"); std::sort (probes.begin (), probes.end (), compare_probes); /* What's the size of an address in our architecture? */ size_addr = gdbarch_addr_bit (gdbarch) == 64 ? 18 : 10; /* Determining the maximum size of each field (`type', `provider', `name' and `objname'). */ for (const bound_probe &probe : probes) { const char *probe_type = probe.probe->pops->type_name (probe.probe); size_type = std::max (strlen (probe_type), size_type); size_name = std::max (strlen (probe.probe->name), size_name); size_provider = std::max (strlen (probe.probe->provider), size_provider); size_objname = std::max (strlen (objfile_name (probe.objfile)), size_objname); } current_uiout->table_header (size_type, ui_left, "type", _("Type")); current_uiout->table_header (size_provider, ui_left, "provider", _("Provider")); current_uiout->table_header (size_name, ui_left, "name", _("Name")); current_uiout->table_header (size_addr, ui_left, "addr", _("Where")); if (pops == NULL) { /* We have to generate the table header for each new probe type that we will print. Note that this excludes probe types not having any defined probe with the search criteria. */ for (const probe_ops *po : all_probe_ops) if (exists_probe_with_pops (probes, po)) gen_ui_out_table_header_info (probes, po); } else gen_ui_out_table_header_info (probes, pops); current_uiout->table_header (size_objname, ui_left, "object", _("Object")); current_uiout->table_body (); for (const bound_probe &probe : probes) { const char *probe_type = probe.probe->pops->type_name (probe.probe); ui_out_emit_tuple tuple_emitter (current_uiout, "probe"); current_uiout->field_string ("type",probe_type); current_uiout->field_string ("provider", probe.probe->provider); current_uiout->field_string ("name", probe.probe->name); current_uiout->field_core_addr ("addr", probe.probe->arch, get_probe_address (probe.probe, probe.objfile)); if (pops == NULL) { for (const probe_ops *po : all_probe_ops) if (probe.probe->pops == po) print_ui_out_info (probe.probe); else if (exists_probe_with_pops (probes, po)) print_ui_out_not_applicables (po); } else print_ui_out_info (probe.probe); current_uiout->field_string ("object", objfile_name (probe.objfile)); current_uiout->text ("\n"); } any_found = !probes.empty (); } if (!any_found) current_uiout->message (_("No probes matched.\n")); } /* Implementation of the `info probes' command. */ static void info_probes_command (const char *arg, int from_tty) { info_probes_for_ops (arg, from_tty, NULL); } /* Implementation of the `enable probes' command. */ static void enable_probes_command (const char *arg, int from_tty) { std::string provider, probe_name, objname; parse_probe_linespec ((const char *) arg, &provider, &probe_name, &objname); std::vector<bound_probe> probes = collect_probes (objname, provider, probe_name, NULL); if (probes.empty ()) { current_uiout->message (_("No probes matched.\n")); return; } /* Enable the selected probes, provided their backends support the notion of enabling a probe. */ for (const bound_probe &probe: probes) { const struct probe_ops *pops = probe.probe->pops; if (pops->enable_probe != NULL) { pops->enable_probe (probe.probe); current_uiout->message (_("Probe %s:%s enabled.\n"), probe.probe->provider, probe.probe->name); } else current_uiout->message (_("Probe %s:%s cannot be enabled.\n"), probe.probe->provider, probe.probe->name); } } /* Implementation of the `disable probes' command. */ static void disable_probes_command (const char *arg, int from_tty) { std::string provider, probe_name, objname; parse_probe_linespec ((const char *) arg, &provider, &probe_name, &objname); std::vector<bound_probe> probes = collect_probes (objname, provider, probe_name, NULL /* pops */); if (probes.empty ()) { current_uiout->message (_("No probes matched.\n")); return; } /* Disable the selected probes, provided their backends support the notion of enabling a probe. */ for (const bound_probe &probe : probes) { const struct probe_ops *pops = probe.probe->pops; if (pops->disable_probe != NULL) { pops->disable_probe (probe.probe); current_uiout->message (_("Probe %s:%s disabled.\n"), probe.probe->provider, probe.probe->name); } else current_uiout->message (_("Probe %s:%s cannot be disabled.\n"), probe.probe->provider, probe.probe->name); } } /* See comments in probe.h. */ CORE_ADDR get_probe_address (struct probe *probe, struct objfile *objfile) { return probe->pops->get_probe_address (probe, objfile); } /* See comments in probe.h. */ unsigned get_probe_argument_count (struct probe *probe, struct frame_info *frame) { return probe->pops->get_probe_argument_count (probe, frame); } /* See comments in probe.h. */ int can_evaluate_probe_arguments (struct probe *probe) { return probe->pops->can_evaluate_probe_arguments (probe); } /* See comments in probe.h. */ struct value * evaluate_probe_argument (struct probe *probe, unsigned n, struct frame_info *frame) { return probe->pops->evaluate_probe_argument (probe, n, frame); } /* See comments in probe.h. */ struct value * probe_safe_evaluate_at_pc (struct frame_info *frame, unsigned n) { struct bound_probe probe; unsigned n_args; probe = find_probe_by_pc (get_frame_pc (frame)); if (!probe.probe) return NULL; n_args = get_probe_argument_count (probe.probe, frame); if (n >= n_args) return NULL; return evaluate_probe_argument (probe.probe, n, frame); } /* See comment in probe.h. */ const struct probe_ops * probe_linespec_to_ops (const char **linespecp) { for (const probe_ops *ops : all_probe_ops) if (ops->is_linespec (linespecp)) return ops; return NULL; } /* See comment in probe.h. */ int probe_is_linespec_by_keyword (const char **linespecp, const char *const *keywords) { const char *s = *linespecp; const char *const *csp; for (csp = keywords; *csp; csp++) { const char *keyword = *csp; size_t len = strlen (keyword); if (strncmp (s, keyword, len) == 0 && isspace (s[len])) { *linespecp += len + 1; return 1; } } return 0; } /* Implementation of `is_linespec' method for `struct probe_ops'. */ static int probe_any_is_linespec (const char **linespecp) { static const char *const keywords[] = { "-p", "-probe", NULL }; return probe_is_linespec_by_keyword (linespecp, keywords); } /* Dummy method used for `probe_ops_any'. */ static void probe_any_get_probes (std::vector<probe *> *probesp, struct objfile *objfile) { /* No probes can be provided by this dummy backend. */ } /* Operations associated with a generic probe. */ const struct probe_ops probe_ops_any = { probe_any_is_linespec, probe_any_get_probes, }; /* See comments in probe.h. */ struct cmd_list_element ** info_probes_cmdlist_get (void) { static struct cmd_list_element *info_probes_cmdlist; if (info_probes_cmdlist == NULL) add_prefix_cmd ("probes", class_info, info_probes_command, _("\ Show available static probes.\n\ Usage: info probes [all|TYPE [ARGS]]\n\ TYPE specifies the type of the probe, and can be one of the following:\n\ - stap\n\ If you specify TYPE, there may be additional arguments needed by the\n\ subcommand.\n\ If you do not specify any argument, or specify `all', then the command\n\ will show information about all types of probes."), &info_probes_cmdlist, "info probes ", 0/*allow-unknown*/, &infolist); return &info_probes_cmdlist; } /* This is called to compute the value of one of the $_probe_arg* convenience variables. */ static struct value * compute_probe_arg (struct gdbarch *arch, struct internalvar *ivar, void *data) { struct frame_info *frame = get_selected_frame (_("No frame selected")); CORE_ADDR pc = get_frame_pc (frame); int sel = (int) (uintptr_t) data; struct bound_probe pc_probe; const struct sym_probe_fns *pc_probe_fns; unsigned n_args; /* SEL == -1 means "_probe_argc". */ gdb_assert (sel >= -1); pc_probe = find_probe_by_pc (pc); if (pc_probe.probe == NULL) error (_("No probe at PC %s"), core_addr_to_string (pc)); n_args = get_probe_argument_count (pc_probe.probe, frame); if (sel == -1) return value_from_longest (builtin_type (arch)->builtin_int, n_args); if (sel >= n_args) error (_("Invalid probe argument %d -- probe has %u arguments available"), sel, n_args); return evaluate_probe_argument (pc_probe.probe, sel, frame); } /* This is called to compile one of the $_probe_arg* convenience variables into an agent expression. */ static void compile_probe_arg (struct internalvar *ivar, struct agent_expr *expr, struct axs_value *value, void *data) { CORE_ADDR pc = expr->scope; int sel = (int) (uintptr_t) data; struct bound_probe pc_probe; const struct sym_probe_fns *pc_probe_fns; int n_args; struct frame_info *frame = get_selected_frame (NULL); /* SEL == -1 means "_probe_argc". */ gdb_assert (sel >= -1); pc_probe = find_probe_by_pc (pc); if (pc_probe.probe == NULL) error (_("No probe at PC %s"), core_addr_to_string (pc)); n_args = get_probe_argument_count (pc_probe.probe, frame); if (sel == -1) { value->kind = axs_rvalue; value->type = builtin_type (expr->gdbarch)->builtin_int; ax_const_l (expr, n_args); return; } gdb_assert (sel >= 0); if (sel >= n_args) error (_("Invalid probe argument %d -- probe has %d arguments available"), sel, n_args); pc_probe.probe->pops->compile_to_ax (pc_probe.probe, expr, value, sel); } static const struct internalvar_funcs probe_funcs = { compute_probe_arg, compile_probe_arg, NULL }; std::vector<const probe_ops *> all_probe_ops; void _initialize_probe (void) { all_probe_ops.push_back (&probe_ops_any); create_internalvar_type_lazy ("_probe_argc", &probe_funcs, (void *) (uintptr_t) -1); create_internalvar_type_lazy ("_probe_arg0", &probe_funcs, (void *) (uintptr_t) 0); create_internalvar_type_lazy ("_probe_arg1", &probe_funcs, (void *) (uintptr_t) 1); create_internalvar_type_lazy ("_probe_arg2", &probe_funcs, (void *) (uintptr_t) 2); create_internalvar_type_lazy ("_probe_arg3", &probe_funcs, (void *) (uintptr_t) 3); create_internalvar_type_lazy ("_probe_arg4", &probe_funcs, (void *) (uintptr_t) 4); create_internalvar_type_lazy ("_probe_arg5", &probe_funcs, (void *) (uintptr_t) 5); create_internalvar_type_lazy ("_probe_arg6", &probe_funcs, (void *) (uintptr_t) 6); create_internalvar_type_lazy ("_probe_arg7", &probe_funcs, (void *) (uintptr_t) 7); create_internalvar_type_lazy ("_probe_arg8", &probe_funcs, (void *) (uintptr_t) 8); create_internalvar_type_lazy ("_probe_arg9", &probe_funcs, (void *) (uintptr_t) 9); create_internalvar_type_lazy ("_probe_arg10", &probe_funcs, (void *) (uintptr_t) 10); create_internalvar_type_lazy ("_probe_arg11", &probe_funcs, (void *) (uintptr_t) 11); add_cmd ("all", class_info, info_probes_command, _("\ Show information about all type of probes."), info_probes_cmdlist_get ()); add_cmd ("probes", class_breakpoint, enable_probes_command, _("\ Enable probes.\n\ Usage: enable probes [PROVIDER [NAME [OBJECT]]]\n\ Each argument is a regular expression, used to select probes.\n\ PROVIDER matches probe provider names.\n\ NAME matches the probe names.\n\ OBJECT matches the executable or shared library name.\n\ If you do not specify any argument then the command will enable\n\ all defined probes."), &enablelist); add_cmd ("probes", class_breakpoint, disable_probes_command, _("\ Disable probes.\n\ Usage: disable probes [PROVIDER [NAME [OBJECT]]]\n\ Each argument is a regular expression, used to select probes.\n\ PROVIDER matches probe provider names.\n\ NAME matches the probe names.\n\ OBJECT matches the executable or shared library name.\n\ If you do not specify any argument then the command will disable\n\ all defined probes."), &disablelist); }