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378ef0f5d9
Remove the LIBTRACEEVENT_DYNAMIC and LIBTRACEFS_DYNAMIC make command line variables. If libtraceevent isn't installed or NO_LIBTRACEEVENT=1 is passed to the build, don't compile in libtraceevent and libtracefs support. This also disables CONFIG_TRACE that controls "perf trace". CONFIG_LIBTRACEEVENT is used to control enablement in Build/Makefiles, HAVE_LIBTRACEEVENT is used in C code. Without HAVE_LIBTRACEEVENT tracepoints are disabled and as such the commands kmem, kwork, lock, sched and timechart are removed. The majority of commands continue to work including "perf test". Committer notes: Fixed up a tools/perf/util/Build reject and added: #include <traceevent/event-parse.h> to tools/perf/util/scripting-engines/trace-event-perl.c. Committer testing: $ rpm -qi libtraceevent-devel Name : libtraceevent-devel Version : 1.5.3 Release : 2.fc36 Architecture: x86_64 Install Date: Mon 25 Jul 2022 03:20:19 PM -03 Group : Unspecified Size : 27728 License : LGPLv2+ and GPLv2+ Signature : RSA/SHA256, Fri 15 Apr 2022 02:11:58 PM -03, Key ID 999f7cbf38ab71f4 Source RPM : libtraceevent-1.5.3-2.fc36.src.rpm Build Date : Fri 15 Apr 2022 10:57:01 AM -03 Build Host : buildvm-x86-05.iad2.fedoraproject.org Packager : Fedora Project Vendor : Fedora Project URL : https://git.kernel.org/pub/scm/libs/libtrace/libtraceevent.git/ Bug URL : https://bugz.fedoraproject.org/libtraceevent Summary : Development headers of libtraceevent Description : Development headers of libtraceevent-libs $ Default build: $ ldd ~/bin/perf | grep tracee libtraceevent.so.1 => /lib64/libtraceevent.so.1 (0x00007f1dcaf8f000) $ # perf trace -e sched:* --max-events 10 0.000 migration/0/17 sched:sched_migrate_task(comm: "", pid: 1603763 (perf), prio: 120, dest_cpu: 1) 0.005 migration/0/17 sched:sched_wake_idle_without_ipi(cpu: 1) 0.011 migration/0/17 sched:sched_switch(prev_comm: "", prev_pid: 17 (migration/0), prev_state: 1, next_comm: "", next_prio: 120) 1.173 :0/0 sched:sched_wakeup(comm: "", pid: 3138 (gnome-terminal-), prio: 120) 1.180 :0/0 sched:sched_switch(prev_comm: "", prev_prio: 120, next_comm: "", next_pid: 3138 (gnome-terminal-), next_prio: 120) 0.156 migration/1/21 sched:sched_migrate_task(comm: "", pid: 1603763 (perf), prio: 120, orig_cpu: 1, dest_cpu: 2) 0.160 migration/1/21 sched:sched_wake_idle_without_ipi(cpu: 2) 0.166 migration/1/21 sched:sched_switch(prev_comm: "", prev_pid: 21 (migration/1), prev_state: 1, next_comm: "", next_prio: 120) 1.183 :0/0 sched:sched_wakeup(comm: "", pid: 1602985 (kworker/u16:0-f), prio: 120, target_cpu: 1) 1.186 :0/0 sched:sched_switch(prev_comm: "", prev_prio: 120, next_comm: "", next_pid: 1602985 (kworker/u16:0-f), next_prio: 120) # Had to tweak tools/perf/util/setup.py to make sure the python binding shared object links with libtraceevent if -DHAVE_LIBTRACEEVENT is present in CFLAGS. Building with NO_LIBTRACEEVENT=1 uncovered some more build failures: - Make building of data-convert-bt.c to CONFIG_LIBTRACEEVENT=y - perf-$(CONFIG_LIBTRACEEVENT) += scripts/ - bpf_kwork.o needs also to be dependent on CONFIG_LIBTRACEEVENT=y - The python binding needed some fixups and util/trace-event.c can't be built and linked with the python binding shared object, so remove it in tools/perf/util/setup.py and exclude it from the list of dependencies in the python/perf.so Makefile.perf target. Building without libtraceevent-devel installed uncovered more build failures: - The python binding tools/perf/util/python.c was assuming that traceevent/parse-events.h was always available, which was the case when we defaulted to using the in-kernel tools/lib/traceevent/ files, now we need to enclose it under ifdef HAVE_LIBTRACEEVENT, just like the other parts of it that deal with tracepoints. - We have to ifdef the rules in the Build files with CONFIG_LIBTRACEEVENT=y to build builtin-trace.c and tools/perf/trace/beauty/ as we only ifdef setting CONFIG_TRACE=y when setting NO_LIBTRACEEVENT=1 in the make command line, not when we don't detect libtraceevent-devel installed in the system. Simplification here to avoid these two ways of disabling builtin-trace.c and not having CONFIG_TRACE=y when libtraceevent-devel isn't installed is the clean way. From Athira: <quote> tools/perf/arch/powerpc/util/Build -perf-y += kvm-stat.o +perf-$(CONFIG_LIBTRACEEVENT) += kvm-stat.o </quote> Then, ditto for arm64 and s390, detected by container cross build tests. - s/390 uses test__checkevent_tracepoint() that is now only available if HAVE_LIBTRACEEVENT is defined, enclose the callsite with ifder HAVE_LIBTRACEEVENT. Also from Athira: <quote> With this change, I could successfully compile in these environment: - Without libtraceevent-devel installed - With libtraceevent-devel installed - With “make NO_LIBTRACEEVENT=1” </quote> Then, finally rename CONFIG_TRACEEVENT to CONFIG_LIBTRACEEVENT for consistency with other libraries detected in tools/perf/. Signed-off-by: Ian Rogers <irogers@google.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Tested-by: Athira Rajeev <atrajeev@linux.vnet.ibm.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Nick Desaulniers <ndesaulniers@google.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: bpf@vger.kernel.org Link: http://lore.kernel.org/lkml/20221205225940.3079667-3-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
255 lines
8.0 KiB
C
255 lines
8.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __PERF_PARSE_EVENTS_H
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#define __PERF_PARSE_EVENTS_H
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/*
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* Parse symbolic events/counts passed in as options:
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*/
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#include <linux/list.h>
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#include <stdbool.h>
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#include <linux/types.h>
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#include <linux/perf_event.h>
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#include <string.h>
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struct evsel;
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struct evlist;
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struct parse_events_error;
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struct option;
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struct perf_pmu;
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bool is_event_supported(u8 type, u64 config);
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const char *event_type(int type);
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int parse_events_option(const struct option *opt, const char *str, int unset);
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int parse_events_option_new_evlist(const struct option *opt, const char *str, int unset);
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__attribute__((nonnull(1, 2, 3)))
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int __parse_events(struct evlist *evlist, const char *str, struct parse_events_error *error,
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struct perf_pmu *fake_pmu);
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__attribute__((nonnull))
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static inline int parse_events(struct evlist *evlist, const char *str,
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struct parse_events_error *err)
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{
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return __parse_events(evlist, str, err, NULL);
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}
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int parse_event(struct evlist *evlist, const char *str);
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int parse_events_terms(struct list_head *terms, const char *str);
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int parse_filter(const struct option *opt, const char *str, int unset);
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int exclude_perf(const struct option *opt, const char *arg, int unset);
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enum perf_pmu_event_symbol_type {
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PMU_EVENT_SYMBOL_ERR, /* not a PMU EVENT */
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PMU_EVENT_SYMBOL, /* normal style PMU event */
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PMU_EVENT_SYMBOL_PREFIX, /* prefix of pre-suf style event */
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PMU_EVENT_SYMBOL_SUFFIX, /* suffix of pre-suf style event */
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PMU_EVENT_SYMBOL_SUFFIX2, /* suffix of pre-suf2 style event */
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};
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enum {
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PARSE_EVENTS__TERM_TYPE_NUM,
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PARSE_EVENTS__TERM_TYPE_STR,
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};
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enum {
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PARSE_EVENTS__TERM_TYPE_USER,
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PARSE_EVENTS__TERM_TYPE_CONFIG,
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PARSE_EVENTS__TERM_TYPE_CONFIG1,
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PARSE_EVENTS__TERM_TYPE_CONFIG2,
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PARSE_EVENTS__TERM_TYPE_NAME,
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PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD,
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PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ,
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PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE,
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PARSE_EVENTS__TERM_TYPE_TIME,
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PARSE_EVENTS__TERM_TYPE_CALLGRAPH,
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PARSE_EVENTS__TERM_TYPE_STACKSIZE,
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PARSE_EVENTS__TERM_TYPE_NOINHERIT,
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PARSE_EVENTS__TERM_TYPE_INHERIT,
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PARSE_EVENTS__TERM_TYPE_MAX_STACK,
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PARSE_EVENTS__TERM_TYPE_MAX_EVENTS,
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PARSE_EVENTS__TERM_TYPE_NOOVERWRITE,
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PARSE_EVENTS__TERM_TYPE_OVERWRITE,
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PARSE_EVENTS__TERM_TYPE_DRV_CFG,
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PARSE_EVENTS__TERM_TYPE_PERCORE,
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PARSE_EVENTS__TERM_TYPE_AUX_OUTPUT,
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PARSE_EVENTS__TERM_TYPE_AUX_SAMPLE_SIZE,
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PARSE_EVENTS__TERM_TYPE_METRIC_ID,
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__PARSE_EVENTS__TERM_TYPE_NR,
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};
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struct parse_events_array {
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size_t nr_ranges;
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struct {
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unsigned int start;
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size_t length;
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} *ranges;
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};
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struct parse_events_term {
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char *config;
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struct parse_events_array array;
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union {
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char *str;
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u64 num;
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} val;
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int type_val;
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int type_term;
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struct list_head list;
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bool used;
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bool no_value;
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/* error string indexes for within parsed string */
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int err_term;
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int err_val;
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/* Coming from implicit alias */
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bool weak;
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};
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struct parse_events_error {
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int num_errors; /* number of errors encountered */
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int idx; /* index in the parsed string */
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char *str; /* string to display at the index */
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char *help; /* optional help string */
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int first_idx;/* as above, but for the first encountered error */
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char *first_str;
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char *first_help;
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};
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struct parse_events_state {
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struct list_head list;
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int idx;
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int nr_groups;
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struct parse_events_error *error;
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struct evlist *evlist;
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struct list_head *terms;
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int stoken;
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struct perf_pmu *fake_pmu;
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char *hybrid_pmu_name;
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};
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void parse_events__shrink_config_terms(void);
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int parse_events__is_hardcoded_term(struct parse_events_term *term);
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int parse_events_term__num(struct parse_events_term **term,
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int type_term, char *config, u64 num,
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bool novalue,
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void *loc_term, void *loc_val);
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int parse_events_term__str(struct parse_events_term **term,
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int type_term, char *config, char *str,
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void *loc_term, void *loc_val);
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int parse_events_term__sym_hw(struct parse_events_term **term,
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char *config, unsigned idx);
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int parse_events_term__clone(struct parse_events_term **new,
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struct parse_events_term *term);
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void parse_events_term__delete(struct parse_events_term *term);
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void parse_events_terms__delete(struct list_head *terms);
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void parse_events_terms__purge(struct list_head *terms);
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void parse_events__clear_array(struct parse_events_array *a);
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int parse_events__modifier_event(struct list_head *list, char *str, bool add);
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int parse_events__modifier_group(struct list_head *list, char *event_mod);
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int parse_events_name(struct list_head *list, const char *name);
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int parse_events_add_tracepoint(struct list_head *list, int *idx,
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const char *sys, const char *event,
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struct parse_events_error *error,
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struct list_head *head_config);
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int parse_events_load_bpf(struct parse_events_state *parse_state,
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struct list_head *list,
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char *bpf_file_name,
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bool source,
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struct list_head *head_config);
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/* Provide this function for perf test */
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struct bpf_object;
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int parse_events_load_bpf_obj(struct parse_events_state *parse_state,
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struct list_head *list,
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struct bpf_object *obj,
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struct list_head *head_config);
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int parse_events_add_numeric(struct parse_events_state *parse_state,
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struct list_head *list,
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u32 type, u64 config,
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struct list_head *head_config);
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int parse_events_add_tool(struct parse_events_state *parse_state,
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struct list_head *list,
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int tool_event);
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int parse_events_add_cache(struct list_head *list, int *idx,
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char *type, char *op_result1, char *op_result2,
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struct parse_events_error *error,
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struct list_head *head_config,
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struct parse_events_state *parse_state);
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int parse_events_add_breakpoint(struct list_head *list, int *idx,
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u64 addr, char *type, u64 len);
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int parse_events_add_pmu(struct parse_events_state *parse_state,
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struct list_head *list, char *name,
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struct list_head *head_config,
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bool auto_merge_stats,
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bool use_alias);
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struct evsel *parse_events__add_event(int idx, struct perf_event_attr *attr,
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const char *name, const char *metric_id,
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struct perf_pmu *pmu);
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int parse_events_multi_pmu_add(struct parse_events_state *parse_state,
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char *str,
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struct list_head *head_config,
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struct list_head **listp);
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int parse_events_copy_term_list(struct list_head *old,
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struct list_head **new);
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enum perf_pmu_event_symbol_type
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perf_pmu__parse_check(const char *name);
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void parse_events__set_leader(char *name, struct list_head *list,
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struct parse_events_state *parse_state);
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void parse_events_update_lists(struct list_head *list_event,
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struct list_head *list_all);
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void parse_events_evlist_error(struct parse_events_state *parse_state,
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int idx, const char *str);
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struct event_symbol {
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const char *symbol;
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const char *alias;
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};
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extern struct event_symbol event_symbols_hw[];
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extern struct event_symbol event_symbols_sw[];
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char *parse_events_formats_error_string(char *additional_terms);
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void parse_events_error__init(struct parse_events_error *err);
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void parse_events_error__exit(struct parse_events_error *err);
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void parse_events_error__handle(struct parse_events_error *err, int idx,
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char *str, char *help);
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void parse_events_error__print(struct parse_events_error *err,
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const char *event);
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#ifdef HAVE_LIBELF_SUPPORT
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/*
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* If the probe point starts with '%',
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* or starts with "sdt_" and has a ':' but no '=',
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* then it should be a SDT/cached probe point.
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*/
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static inline bool is_sdt_event(char *str)
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{
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return (str[0] == '%' ||
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(!strncmp(str, "sdt_", 4) &&
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!!strchr(str, ':') && !strchr(str, '=')));
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}
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#else
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static inline bool is_sdt_event(char *str __maybe_unused)
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{
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return false;
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}
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#endif /* HAVE_LIBELF_SUPPORT */
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int perf_pmu__test_parse_init(void);
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struct evsel *parse_events__add_event_hybrid(struct list_head *list, int *idx,
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struct perf_event_attr *attr,
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const char *name,
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const char *metric_id,
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struct perf_pmu *pmu,
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struct list_head *config_terms);
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#endif /* __PERF_PARSE_EVENTS_H */
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