diff --git a/bsd-user/main.c b/bsd-user/main.c index d8367bda46..4fd7b6396d 100644 --- a/bsd-user/main.c +++ b/bsd-user/main.c @@ -740,6 +740,7 @@ int main(int argc, char **argv) if (argc <= 1) usage(); + module_call_init(MODULE_INIT_TRACE); qemu_init_cpu_list(); module_call_init(MODULE_INIT_QOM); diff --git a/include/qemu/module.h b/include/qemu/module.h index dc2c9d4c4e..877cca7d7b 100644 --- a/include/qemu/module.h +++ b/include/qemu/module.h @@ -44,6 +44,7 @@ typedef enum { MODULE_INIT_OPTS, MODULE_INIT_QAPI, MODULE_INIT_QOM, + MODULE_INIT_TRACE, MODULE_INIT_MAX } module_init_type; @@ -51,6 +52,7 @@ typedef enum { #define opts_init(function) module_init(function, MODULE_INIT_OPTS) #define qapi_init(function) module_init(function, MODULE_INIT_QAPI) #define type_init(function) module_init(function, MODULE_INIT_QOM) +#define trace_init(function) module_init(function, MODULE_INIT_TRACE) #define block_module_load_one(lib) module_load_one("block-", lib) diff --git a/linux-user/main.c b/linux-user/main.c index 9e4b430d66..0e31dad684 100644 --- a/linux-user/main.c +++ b/linux-user/main.c @@ -4158,6 +4158,7 @@ int main(int argc, char **argv, char **envp) int ret; int execfd; + module_call_init(MODULE_INIT_TRACE); qemu_init_cpu_list(); module_call_init(MODULE_INIT_QOM); diff --git a/qemu-img.c b/qemu-img.c index ceffefeacb..02c07b913d 100644 --- a/qemu-img.c +++ b/qemu-img.c @@ -4165,6 +4165,7 @@ int main(int argc, char **argv) signal(SIGPIPE, SIG_IGN); #endif + module_call_init(MODULE_INIT_TRACE); error_set_progname(argv[0]); qemu_init_exec_dir(argv[0]); diff --git a/qemu-io.c b/qemu-io.c index db129eac5f..23a229f880 100644 --- a/qemu-io.c +++ b/qemu-io.c @@ -467,6 +467,7 @@ int main(int argc, char **argv) signal(SIGPIPE, SIG_IGN); #endif + module_call_init(MODULE_INIT_TRACE); progname = basename(argv[0]); qemu_init_exec_dir(argv[0]); diff --git a/qemu-nbd.c b/qemu-nbd.c index 705b95ec29..cca4a983b7 100644 --- a/qemu-nbd.c +++ b/qemu-nbd.c @@ -533,6 +533,7 @@ int main(int argc, char **argv) sa_sigterm.sa_handler = termsig_handler; sigaction(SIGTERM, &sa_sigterm, NULL); + module_call_init(MODULE_INIT_TRACE); qcrypto_init(&error_fatal); module_call_init(MODULE_INIT_QOM); diff --git a/scripts/tracetool/format/events_c.py b/scripts/tracetool/format/events_c.py index 40ae39568e..88175559de 100644 --- a/scripts/tracetool/format/events_c.py +++ b/scripts/tracetool/format/events_c.py @@ -60,3 +60,9 @@ def generate(events, backend): out(' NULL,', '};', '') + + out('static void trace_register_events(void)', + '{', + ' trace_event_register_group(trace_events);', + '}', + 'trace_init(trace_register_events)') diff --git a/trace/control-internal.h b/trace/control-internal.h index 9abbc96bcb..a9d395a587 100644 --- a/trace/control-internal.h +++ b/trace/control-internal.h @@ -15,7 +15,6 @@ #include "qom/cpu.h" -extern TraceEvent *trace_events[]; extern int trace_events_enabled_count; @@ -83,4 +82,7 @@ static inline bool trace_event_get_vcpu_state_dynamic(CPUState *vcpu, return trace_event_get_vcpu_state_dynamic_by_vcpu_id(vcpu, vcpu_id); } + +void trace_event_register_group(TraceEvent **events); + #endif /* TRACE__CONTROL_INTERNAL_H */ diff --git a/trace/control.c b/trace/control.c index 6b32511d60..a2313273d8 100644 --- a/trace/control.c +++ b/trace/control.c @@ -29,6 +29,13 @@ int trace_events_enabled_count; +typedef struct TraceEventGroup { + TraceEvent **events; +} TraceEventGroup; + +static TraceEventGroup *event_groups; +static size_t nevent_groups; + QemuOptsList qemu_trace_opts = { .name = "trace", .implied_opt_name = "enable", @@ -50,6 +57,14 @@ QemuOptsList qemu_trace_opts = { }; +void trace_event_register_group(TraceEvent **events) +{ + event_groups = g_renew(TraceEventGroup, event_groups, nevent_groups + 1); + event_groups[nevent_groups].events = events; + nevent_groups++; +} + + TraceEvent *trace_event_name(const char *name) { assert(name != NULL); @@ -100,14 +115,20 @@ static bool pattern_glob(const char *pat, const char *ev) void trace_event_iter_init(TraceEventIter *iter, const char *pattern) { iter->event = 0; + iter->group = 0; iter->pattern = pattern; } TraceEvent *trace_event_iter_next(TraceEventIter *iter) { - while (trace_events[iter->event] != NULL) { - TraceEvent *ev = trace_events[iter->event]; + while (iter->group < nevent_groups && + event_groups[iter->group].events[iter->event] != NULL) { + TraceEvent *ev = event_groups[iter->group].events[iter->event]; iter->event++; + if (event_groups[iter->group].events[iter->event] == NULL) { + iter->event = 0; + iter->group++; + } if (!iter->pattern || pattern_glob(iter->pattern, trace_event_get_name(ev))) { diff --git a/trace/control.h b/trace/control.h index cccd2a295e..3f30a0c2b7 100644 --- a/trace/control.h +++ b/trace/control.h @@ -15,6 +15,7 @@ typedef struct TraceEventIter { size_t event; + size_t group; const char *pattern; } TraceEventIter; diff --git a/vl.c b/vl.c index eb3c5ee348..c657acdd3c 100644 --- a/vl.c +++ b/vl.c @@ -3024,6 +3024,8 @@ int main(int argc, char **argv, char **envp) Error *err = NULL; bool list_data_dirs = false; + module_call_init(MODULE_INIT_TRACE); + qemu_init_cpu_list(); qemu_init_cpu_loop(); qemu_mutex_lock_iothread();