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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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perf tools: Use allocated list for each parsed event
Switch from using static temporary event list into dynamically allocated one. This way we dont need to pass temp list to the parse_events_parse which makes the interface more clear. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1337584373-2741-4-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa
Arnaldo Carvalho de Melo
parent
82ba1f2f61
commit
b847cbdc67
@ -26,8 +26,7 @@ struct event_symbol {
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#ifdef PARSER_DEBUG
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extern int parse_events_debug;
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#endif
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int parse_events_parse(struct list_head *list, struct list_head *list_tmp,
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int *idx);
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int parse_events_parse(struct list_head *list, int *idx);
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#define CHW(x) .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_##x
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#define CSW(x) .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_##x
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@ -358,20 +357,30 @@ const char *__event_name(int type, u64 config)
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return "unknown";
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}
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static int add_event(struct list_head *list, int *idx,
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static int add_event(struct list_head **_list, int *idx,
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struct perf_event_attr *attr, char *name)
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{
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struct perf_evsel *evsel;
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struct list_head *list = *_list;
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if (!list) {
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list = malloc(sizeof(*list));
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if (!list)
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return -ENOMEM;
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INIT_LIST_HEAD(list);
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}
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event_attr_init(attr);
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evsel = perf_evsel__new(attr, (*idx)++);
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if (!evsel)
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if (!evsel) {
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free(list);
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return -ENOMEM;
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list_add_tail(&evsel->node, list);
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}
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evsel->name = strdup(name);
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list_add_tail(&evsel->node, list);
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*_list = list;
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return 0;
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}
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@ -393,7 +402,7 @@ static int parse_aliases(char *str, const char *names[][MAX_ALIASES], int size)
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return -1;
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}
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int parse_events_add_cache(struct list_head *list, int *idx,
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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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{
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struct perf_event_attr attr;
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@ -454,7 +463,7 @@ int parse_events_add_cache(struct list_head *list, int *idx,
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return add_event(list, idx, &attr, name);
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}
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static int add_tracepoint(struct list_head *list, int *idx,
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static int add_tracepoint(struct list_head **list, int *idx,
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char *sys_name, char *evt_name)
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{
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struct perf_event_attr attr;
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@ -491,7 +500,7 @@ static int add_tracepoint(struct list_head *list, int *idx,
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return add_event(list, idx, &attr, name);
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}
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static int add_tracepoint_multi(struct list_head *list, int *idx,
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static int add_tracepoint_multi(struct list_head **list, int *idx,
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char *sys_name, char *evt_name)
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{
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char evt_path[MAXPATHLEN];
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@ -522,7 +531,7 @@ static int add_tracepoint_multi(struct list_head *list, int *idx,
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return ret;
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}
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int parse_events_add_tracepoint(struct list_head *list, int *idx,
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int parse_events_add_tracepoint(struct list_head **list, int *idx,
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char *sys, char *event)
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{
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int ret;
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@ -566,7 +575,7 @@ parse_breakpoint_type(const char *type, struct perf_event_attr *attr)
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return 0;
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}
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int parse_events_add_breakpoint(struct list_head *list, int *idx,
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int parse_events_add_breakpoint(struct list_head **list, int *idx,
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void *ptr, char *type)
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{
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struct perf_event_attr attr;
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@ -645,7 +654,7 @@ static int config_attr(struct perf_event_attr *attr,
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return 0;
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}
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int parse_events_add_numeric(struct list_head *list, int *idx,
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int parse_events_add_numeric(struct list_head **list, int *idx,
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unsigned long type, unsigned long config,
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struct list_head *head_config)
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{
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@ -663,7 +672,7 @@ int parse_events_add_numeric(struct list_head *list, int *idx,
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(char *) __event_name(type, config));
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}
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int parse_events_add_pmu(struct list_head *list, int *idx,
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int parse_events_add_pmu(struct list_head **list, int *idx,
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char *name, struct list_head *head_config)
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{
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struct perf_event_attr attr;
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@ -696,7 +705,7 @@ void parse_events_update_lists(struct list_head *list_event,
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* list, for next event definition.
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*/
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list_splice_tail(list_event, list_all);
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INIT_LIST_HEAD(list_event);
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free(list_event);
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}
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int parse_events_modifier(struct list_head *list, char *str)
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@ -774,7 +783,7 @@ int parse_events(struct perf_evlist *evlist, const char *str, int unset __used)
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#ifdef PARSER_DEBUG
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parse_events_debug = 1;
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#endif
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ret = parse_events_parse(&list, &list_tmp, &idx);
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ret = parse_events_parse(&list, &idx);
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parse_events__flush_buffer(buffer);
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parse_events__delete_buffer(buffer);
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@ -68,25 +68,21 @@ int parse_events__term_num(struct parse_events__term **_term,
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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 parse_events__free_terms(struct list_head *terms);
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int parse_events_modifier(struct list_head *list __used, char *str __used);
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int parse_events_add_tracepoint(struct list_head *list, int *idx,
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int parse_events_modifier(struct list_head *list, char *str);
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int parse_events_add_tracepoint(struct list_head **list, int *idx,
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char *sys, char *event);
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int parse_events_add_raw(struct perf_evlist *evlist, unsigned long config,
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unsigned long config1, unsigned long config2,
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char *mod);
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int parse_events_add_numeric(struct list_head *list, int *idx,
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int parse_events_add_numeric(struct list_head **list, int *idx,
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unsigned long type, unsigned long config,
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struct list_head *head_config);
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int parse_events_add_cache(struct list_head *list, int *idx,
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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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int parse_events_add_breakpoint(struct list_head *list, int *idx,
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int parse_events_add_breakpoint(struct list_head **list, int *idx,
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void *ptr, char *type);
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int parse_events_add_pmu(struct list_head *list, int *idx,
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int parse_events_add_pmu(struct list_head **list, int *idx,
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char *pmu , struct list_head *head_config);
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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_error(struct list_head *list_all,
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struct list_head *list_event,
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int *idx, char const *msg);
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int parse_events__test(void);
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@ -1,7 +1,6 @@
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%name-prefix "parse_events_"
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%parse-param {struct list_head *list_all}
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%parse-param {struct list_head *list_event}
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%parse-param {int *idx}
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%{
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@ -41,6 +40,14 @@ do { \
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%type <str> PE_MODIFIER_BP
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%type <head> event_config
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%type <term> event_term
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%type <head> event_pmu
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%type <head> event_legacy_symbol
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%type <head> event_legacy_cache
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%type <head> event_legacy_mem
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%type <head> event_legacy_tracepoint
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%type <head> event_legacy_numeric
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%type <head> event_legacy_raw
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%type <head> event_def
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%union
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{
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@ -62,13 +69,13 @@ event_def PE_MODIFIER_EVENT
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* (there could be more events added for multiple tracepoint
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* definitions via '*?'.
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*/
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ABORT_ON(parse_events_modifier(list_event, $2));
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parse_events_update_lists(list_event, list_all);
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ABORT_ON(parse_events_modifier($1, $2));
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parse_events_update_lists($1, list_all);
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}
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event_def
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{
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parse_events_update_lists(list_event, list_all);
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parse_events_update_lists($1, list_all);
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}
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event_def: event_pmu |
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@ -82,71 +89,102 @@ event_def: event_pmu |
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event_pmu:
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PE_NAME '/' event_config '/'
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{
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ABORT_ON(parse_events_add_pmu(list_event, idx, $1, $3));
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struct list_head *list = NULL;
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ABORT_ON(parse_events_add_pmu(&list, idx, $1, $3));
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parse_events__free_terms($3);
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$$ = list;
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}
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event_legacy_symbol:
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PE_VALUE_SYM '/' event_config '/'
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{
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struct list_head *list = NULL;
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int type = $1 >> 16;
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int config = $1 & 255;
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ABORT_ON(parse_events_add_numeric(list_event, idx, type, config, $3));
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ABORT_ON(parse_events_add_numeric(&list, idx, type, config, $3));
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parse_events__free_terms($3);
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$$ = list;
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}
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PE_VALUE_SYM sep_slash_dc
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{
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struct list_head *list = NULL;
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int type = $1 >> 16;
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int config = $1 & 255;
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ABORT_ON(parse_events_add_numeric(list_event, idx, type, config, NULL));
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ABORT_ON(parse_events_add_numeric(&list, idx, type, config, NULL));
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$$ = list;
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}
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event_legacy_cache:
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PE_NAME_CACHE_TYPE '-' PE_NAME_CACHE_OP_RESULT '-' PE_NAME_CACHE_OP_RESULT
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{
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ABORT_ON(parse_events_add_cache(list_event, idx, $1, $3, $5));
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struct list_head *list = NULL;
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ABORT_ON(parse_events_add_cache(&list, idx, $1, $3, $5));
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$$ = list;
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}
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PE_NAME_CACHE_TYPE '-' PE_NAME_CACHE_OP_RESULT
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{
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ABORT_ON(parse_events_add_cache(list_event, idx, $1, $3, NULL));
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struct list_head *list = NULL;
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ABORT_ON(parse_events_add_cache(&list, idx, $1, $3, NULL));
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$$ = list;
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}
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PE_NAME_CACHE_TYPE
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{
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ABORT_ON(parse_events_add_cache(list_event, idx, $1, NULL, NULL));
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struct list_head *list = NULL;
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ABORT_ON(parse_events_add_cache(&list, idx, $1, NULL, NULL));
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$$ = list;
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}
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event_legacy_mem:
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PE_PREFIX_MEM PE_VALUE ':' PE_MODIFIER_BP sep_dc
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{
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ABORT_ON(parse_events_add_breakpoint(list_event, idx, (void *) $2, $4));
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struct list_head *list = NULL;
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ABORT_ON(parse_events_add_breakpoint(&list, idx, (void *) $2, $4));
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$$ = list;
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}
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PE_PREFIX_MEM PE_VALUE sep_dc
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{
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ABORT_ON(parse_events_add_breakpoint(list_event, idx, (void *) $2, NULL));
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struct list_head *list = NULL;
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ABORT_ON(parse_events_add_breakpoint(&list, idx, (void *) $2, NULL));
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$$ = list;
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}
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event_legacy_tracepoint:
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PE_NAME ':' PE_NAME
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{
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ABORT_ON(parse_events_add_tracepoint(list_event, idx, $1, $3));
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struct list_head *list = NULL;
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ABORT_ON(parse_events_add_tracepoint(&list, idx, $1, $3));
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$$ = list;
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}
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event_legacy_numeric:
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PE_VALUE ':' PE_VALUE
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{
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ABORT_ON(parse_events_add_numeric(list_event, idx, $1, $3, NULL));
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struct list_head *list = NULL;
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ABORT_ON(parse_events_add_numeric(&list, idx, $1, $3, NULL));
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$$ = list;
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}
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event_legacy_raw:
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PE_RAW
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{
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ABORT_ON(parse_events_add_numeric(list_event, idx, PERF_TYPE_RAW, $1, NULL));
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struct list_head *list = NULL;
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ABORT_ON(parse_events_add_numeric(&list, idx, PERF_TYPE_RAW, $1, NULL));
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$$ = list;
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}
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event_config:
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@ -222,7 +260,6 @@ sep_slash_dc: '/' | ':' |
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%%
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void parse_events_error(struct list_head *list_all __used,
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struct list_head *list_event __used,
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int *idx __used,
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char const *msg __used)
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{
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