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synced 2024-08-21 16:29:59 +00:00
![Ian Rogers](/assets/img/avatar_default.png)
There's no need to read the string ':' or '/' for PE_BP_COLON or
PE_BP_SLASH and doing so causes parse-events.y to leak memory.
The original patch has a committer note about not using these tokens
presumably as yacc spotted they were a memory leak because no
%destructor could be run. Remove the unused token workaround as there
is now no value associated with these tokens.
Fixes: f0617f526c
("perf parse: Allow config terms with breakpoints")
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20230613182629.1500317-1-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
995 lines
18 KiB
Text
995 lines
18 KiB
Text
%define api.pure full
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%parse-param {void *_parse_state}
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%parse-param {void *scanner}
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%lex-param {void* scanner}
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%locations
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%{
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#define YYDEBUG 1
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#include <errno.h>
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#include <fnmatch.h>
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#include <stdio.h>
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#include <linux/compiler.h>
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#include <linux/types.h>
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#include <linux/zalloc.h>
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#include "pmu.h"
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#include "pmus.h"
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#include "evsel.h"
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#include "parse-events.h"
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#include "parse-events-bison.h"
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void parse_events_error(YYLTYPE *loc, void *parse_state, void *scanner, char const *msg);
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#define ABORT_ON(val) \
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do { \
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if (val) \
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YYABORT; \
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} while (0)
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static struct list_head* alloc_list(void)
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{
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struct list_head *list;
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list = malloc(sizeof(*list));
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if (!list)
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return NULL;
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INIT_LIST_HEAD(list);
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return list;
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}
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static void free_list_evsel(struct list_head* list_evsel)
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{
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struct evsel *evsel, *tmp;
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list_for_each_entry_safe(evsel, tmp, list_evsel, core.node) {
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list_del_init(&evsel->core.node);
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evsel__delete(evsel);
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}
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free(list_evsel);
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}
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%}
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%token PE_START_EVENTS PE_START_TERMS
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%token PE_VALUE PE_VALUE_SYM_HW PE_VALUE_SYM_SW PE_TERM
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%token PE_VALUE_SYM_TOOL
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%token PE_EVENT_NAME
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%token PE_RAW PE_NAME
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%token PE_BPF_OBJECT PE_BPF_SOURCE
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%token PE_MODIFIER_EVENT PE_MODIFIER_BP PE_BP_COLON PE_BP_SLASH
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%token PE_LEGACY_CACHE
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%token PE_PREFIX_MEM PE_PREFIX_RAW PE_PREFIX_GROUP
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%token PE_ERROR
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%token PE_KERNEL_PMU_EVENT PE_PMU_EVENT_FAKE
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%token PE_ARRAY_ALL PE_ARRAY_RANGE
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%token PE_DRV_CFG_TERM
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%token PE_TERM_HW
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%type <num> PE_VALUE
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%type <num> PE_VALUE_SYM_HW
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%type <num> PE_VALUE_SYM_SW
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%type <num> PE_VALUE_SYM_TOOL
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%type <num> PE_TERM
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%type <num> value_sym
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%type <str> PE_RAW
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%type <str> PE_NAME
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%type <str> PE_BPF_OBJECT
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%type <str> PE_BPF_SOURCE
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%type <str> PE_LEGACY_CACHE
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%type <str> PE_MODIFIER_EVENT
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%type <str> PE_MODIFIER_BP
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%type <str> PE_EVENT_NAME
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%type <str> PE_KERNEL_PMU_EVENT PE_PMU_EVENT_FAKE
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%type <str> PE_DRV_CFG_TERM
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%type <str> name_or_raw name_or_legacy
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%destructor { free ($$); } <str>
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%type <term> event_term
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%destructor { parse_events_term__delete ($$); } <term>
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%type <list_terms> event_config
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%type <list_terms> opt_event_config
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%type <list_terms> opt_pmu_config
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%destructor { parse_events_terms__delete ($$); } <list_terms>
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%type <list_evsel> event_pmu
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%type <list_evsel> event_legacy_symbol
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%type <list_evsel> event_legacy_cache
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%type <list_evsel> event_legacy_mem
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%type <list_evsel> event_legacy_tracepoint
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%type <list_evsel> event_legacy_numeric
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%type <list_evsel> event_legacy_raw
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%type <list_evsel> event_bpf_file
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%type <list_evsel> event_def
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%type <list_evsel> event_mod
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%type <list_evsel> event_name
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%type <list_evsel> event
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%type <list_evsel> events
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%type <list_evsel> group_def
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%type <list_evsel> group
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%type <list_evsel> groups
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%destructor { free_list_evsel ($$); } <list_evsel>
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%type <tracepoint_name> tracepoint_name
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%destructor { free ($$.sys); free ($$.event); } <tracepoint_name>
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%type <array> array
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%type <array> array_term
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%type <array> array_terms
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%destructor { free ($$.ranges); } <array>
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%type <hardware_term> PE_TERM_HW
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%destructor { free ($$.str); } <hardware_term>
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%union
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{
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char *str;
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u64 num;
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struct list_head *list_evsel;
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struct list_head *list_terms;
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struct parse_events_term *term;
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struct tracepoint_name {
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char *sys;
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char *event;
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} tracepoint_name;
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struct parse_events_array array;
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struct hardware_term {
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char *str;
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u64 num;
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} hardware_term;
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}
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%%
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start:
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PE_START_EVENTS start_events
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PE_START_TERMS start_terms
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start_events: groups
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{
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struct parse_events_state *parse_state = _parse_state;
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/* frees $1 */
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parse_events_update_lists($1, &parse_state->list);
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}
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groups:
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groups ',' group
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{
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struct list_head *list = $1;
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struct list_head *group = $3;
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/* frees $3 */
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parse_events_update_lists(group, list);
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$$ = list;
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}
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groups ',' event
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{
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struct list_head *list = $1;
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struct list_head *event = $3;
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/* frees $3 */
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parse_events_update_lists(event, list);
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$$ = list;
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}
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group
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event
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group:
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group_def ':' PE_MODIFIER_EVENT
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{
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struct list_head *list = $1;
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int err;
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err = parse_events__modifier_group(list, $3);
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free($3);
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if (err) {
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struct parse_events_state *parse_state = _parse_state;
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struct parse_events_error *error = parse_state->error;
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parse_events_error__handle(error, @3.first_column,
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strdup("Bad modifier"), NULL);
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free_list_evsel(list);
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YYABORT;
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}
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$$ = list;
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}
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group_def
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group_def:
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PE_NAME '{' events '}'
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{
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struct list_head *list = $3;
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/* Takes ownership of $1. */
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parse_events__set_leader($1, list);
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$$ = list;
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}
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'{' events '}'
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{
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struct list_head *list = $2;
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parse_events__set_leader(NULL, list);
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$$ = list;
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}
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events:
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events ',' event
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{
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struct list_head *event = $3;
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struct list_head *list = $1;
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/* frees $3 */
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parse_events_update_lists(event, list);
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$$ = list;
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}
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event
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event: event_mod
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event_mod:
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event_name PE_MODIFIER_EVENT
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{
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struct list_head *list = $1;
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int err;
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/*
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* Apply modifier on all events added by single event definition
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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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err = parse_events__modifier_event(list, $2, false);
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free($2);
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if (err) {
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struct parse_events_state *parse_state = _parse_state;
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struct parse_events_error *error = parse_state->error;
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parse_events_error__handle(error, @2.first_column,
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strdup("Bad modifier"), NULL);
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free_list_evsel(list);
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YYABORT;
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}
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$$ = list;
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}
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event_name
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event_name:
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PE_EVENT_NAME event_def
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{
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int err;
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err = parse_events_name($2, $1);
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free($1);
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if (err) {
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free_list_evsel($2);
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YYABORT;
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}
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$$ = $2;
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}
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event_def
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event_def: event_pmu |
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event_legacy_symbol |
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event_legacy_cache sep_dc |
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event_legacy_mem sep_dc |
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event_legacy_tracepoint sep_dc |
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event_legacy_numeric sep_dc |
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event_legacy_raw sep_dc |
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event_bpf_file
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event_pmu:
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PE_NAME opt_pmu_config
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{
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struct parse_events_state *parse_state = _parse_state;
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struct parse_events_error *error = parse_state->error;
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struct list_head *list = NULL, *orig_terms = NULL, *terms= NULL;
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char *pattern = NULL;
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#define CLEANUP_YYABORT \
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do { \
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parse_events_terms__delete($2); \
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parse_events_terms__delete(orig_terms); \
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free(list); \
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free($1); \
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free(pattern); \
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YYABORT; \
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} while(0)
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if (parse_events_copy_term_list($2, &orig_terms))
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CLEANUP_YYABORT;
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if (error)
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error->idx = @1.first_column;
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list = alloc_list();
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if (!list)
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CLEANUP_YYABORT;
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/* Attempt to add to list assuming $1 is a PMU name. */
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if (parse_events_add_pmu(parse_state, list, $1, $2, /*auto_merge_stats=*/false)) {
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struct perf_pmu *pmu = NULL;
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int ok = 0;
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/* Failure to add, try wildcard expansion of $1 as a PMU name. */
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if (asprintf(&pattern, "%s*", $1) < 0)
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CLEANUP_YYABORT;
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while ((pmu = perf_pmus__scan(pmu)) != NULL) {
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char *name = pmu->name;
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if (parse_events__filter_pmu(parse_state, pmu))
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continue;
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if (!strncmp(name, "uncore_", 7) &&
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strncmp($1, "uncore_", 7))
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name += 7;
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if (!perf_pmu__match(pattern, name, $1) ||
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!perf_pmu__match(pattern, pmu->alias_name, $1)) {
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bool auto_merge_stats = perf_pmu__auto_merge_stats(pmu);
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if (parse_events_copy_term_list(orig_terms, &terms))
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CLEANUP_YYABORT;
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if (!parse_events_add_pmu(parse_state, list, pmu->name, terms,
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auto_merge_stats)) {
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ok++;
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parse_state->wild_card_pmus = true;
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}
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parse_events_terms__delete(terms);
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}
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}
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if (!ok) {
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/* Failure to add, assume $1 is an event name. */
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zfree(&list);
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ok = !parse_events_multi_pmu_add(parse_state, $1, $2, &list);
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$2 = NULL;
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}
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if (!ok)
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CLEANUP_YYABORT;
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}
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parse_events_terms__delete($2);
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parse_events_terms__delete(orig_terms);
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free(pattern);
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free($1);
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$$ = list;
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#undef CLEANUP_YYABORT
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}
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PE_KERNEL_PMU_EVENT sep_dc
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{
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struct list_head *list;
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int err;
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err = parse_events_multi_pmu_add(_parse_state, $1, NULL, &list);
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free($1);
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if (err < 0)
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YYABORT;
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$$ = list;
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}
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PE_NAME sep_dc
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{
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struct list_head *list;
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int err;
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err = parse_events_multi_pmu_add(_parse_state, $1, NULL, &list);
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free($1);
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if (err < 0)
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YYABORT;
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$$ = list;
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}
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PE_KERNEL_PMU_EVENT opt_pmu_config
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{
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struct list_head *list;
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int err;
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/* frees $2 */
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err = parse_events_multi_pmu_add(_parse_state, $1, $2, &list);
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free($1);
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if (err < 0)
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YYABORT;
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$$ = list;
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}
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PE_PMU_EVENT_FAKE sep_dc
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{
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struct list_head *list;
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int err;
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list = alloc_list();
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if (!list)
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YYABORT;
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err = parse_events_add_pmu(_parse_state, list, $1, /*head_config=*/NULL,
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/*auto_merge_stats=*/false);
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free($1);
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if (err < 0) {
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free(list);
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YYABORT;
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}
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$$ = list;
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}
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PE_PMU_EVENT_FAKE opt_pmu_config
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{
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struct list_head *list;
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int err;
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list = alloc_list();
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if (!list)
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YYABORT;
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err = parse_events_add_pmu(_parse_state, list, $1, $2, /*auto_merge_stats=*/false);
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free($1);
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parse_events_terms__delete($2);
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if (err < 0) {
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free(list);
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YYABORT;
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}
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$$ = list;
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}
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value_sym:
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PE_VALUE_SYM_HW
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PE_VALUE_SYM_SW
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event_legacy_symbol:
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value_sym '/' event_config '/'
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{
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struct list_head *list;
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int type = $1 >> 16;
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int config = $1 & 255;
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int err;
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bool wildcard = (type == PERF_TYPE_HARDWARE || type == PERF_TYPE_HW_CACHE);
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list = alloc_list();
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ABORT_ON(!list);
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err = parse_events_add_numeric(_parse_state, list, type, config, $3, wildcard);
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parse_events_terms__delete($3);
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if (err) {
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free_list_evsel(list);
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YYABORT;
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}
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$$ = list;
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}
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value_sym sep_slash_slash_dc
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{
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struct list_head *list;
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int type = $1 >> 16;
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int config = $1 & 255;
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bool wildcard = (type == PERF_TYPE_HARDWARE || type == PERF_TYPE_HW_CACHE);
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list = alloc_list();
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ABORT_ON(!list);
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ABORT_ON(parse_events_add_numeric(_parse_state, list, type, config,
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/*head_config=*/NULL, wildcard));
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$$ = list;
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}
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PE_VALUE_SYM_TOOL sep_slash_slash_dc
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{
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struct list_head *list;
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list = alloc_list();
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ABORT_ON(!list);
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ABORT_ON(parse_events_add_tool(_parse_state, list, $1));
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$$ = list;
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}
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event_legacy_cache:
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PE_LEGACY_CACHE opt_event_config
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{
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struct parse_events_state *parse_state = _parse_state;
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struct list_head *list;
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int err;
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list = alloc_list();
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ABORT_ON(!list);
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err = parse_events_add_cache(list, &parse_state->idx, $1, parse_state, $2);
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parse_events_terms__delete($2);
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free($1);
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if (err) {
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free_list_evsel(list);
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YYABORT;
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}
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$$ = list;
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}
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event_legacy_mem:
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PE_PREFIX_MEM PE_VALUE PE_BP_SLASH PE_VALUE PE_BP_COLON PE_MODIFIER_BP opt_event_config
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{
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struct list_head *list;
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int err;
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list = alloc_list();
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ABORT_ON(!list);
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err = parse_events_add_breakpoint(_parse_state, list,
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$2, $6, $4, $7);
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parse_events_terms__delete($7);
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free($6);
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if (err) {
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free(list);
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YYABORT;
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}
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$$ = list;
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}
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PE_PREFIX_MEM PE_VALUE PE_BP_SLASH PE_VALUE opt_event_config
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{
|
|
struct list_head *list;
|
|
int err;
|
|
|
|
list = alloc_list();
|
|
ABORT_ON(!list);
|
|
err = parse_events_add_breakpoint(_parse_state, list,
|
|
$2, NULL, $4, $5);
|
|
parse_events_terms__delete($5);
|
|
if (err) {
|
|
free(list);
|
|
YYABORT;
|
|
}
|
|
$$ = list;
|
|
}
|
|
|
|
|
PE_PREFIX_MEM PE_VALUE PE_BP_COLON PE_MODIFIER_BP opt_event_config
|
|
{
|
|
struct list_head *list;
|
|
int err;
|
|
|
|
list = alloc_list();
|
|
ABORT_ON(!list);
|
|
err = parse_events_add_breakpoint(_parse_state, list,
|
|
$2, $4, 0, $5);
|
|
parse_events_terms__delete($5);
|
|
free($4);
|
|
if (err) {
|
|
free(list);
|
|
YYABORT;
|
|
}
|
|
$$ = list;
|
|
}
|
|
|
|
|
PE_PREFIX_MEM PE_VALUE opt_event_config
|
|
{
|
|
struct list_head *list;
|
|
int err;
|
|
|
|
list = alloc_list();
|
|
ABORT_ON(!list);
|
|
err = parse_events_add_breakpoint(_parse_state, list,
|
|
$2, NULL, 0, $3);
|
|
parse_events_terms__delete($3);
|
|
if (err) {
|
|
free(list);
|
|
YYABORT;
|
|
}
|
|
$$ = list;
|
|
}
|
|
|
|
event_legacy_tracepoint:
|
|
tracepoint_name opt_event_config
|
|
{
|
|
struct parse_events_state *parse_state = _parse_state;
|
|
struct parse_events_error *error = parse_state->error;
|
|
struct list_head *list;
|
|
int err;
|
|
|
|
list = alloc_list();
|
|
ABORT_ON(!list);
|
|
if (error)
|
|
error->idx = @1.first_column;
|
|
|
|
err = parse_events_add_tracepoint(list, &parse_state->idx, $1.sys, $1.event,
|
|
error, $2);
|
|
|
|
parse_events_terms__delete($2);
|
|
free($1.sys);
|
|
free($1.event);
|
|
if (err) {
|
|
free(list);
|
|
YYABORT;
|
|
}
|
|
$$ = list;
|
|
}
|
|
|
|
tracepoint_name:
|
|
PE_NAME ':' PE_NAME
|
|
{
|
|
struct tracepoint_name tracepoint = {$1, $3};
|
|
|
|
$$ = tracepoint;
|
|
}
|
|
|
|
event_legacy_numeric:
|
|
PE_VALUE ':' PE_VALUE opt_event_config
|
|
{
|
|
struct list_head *list;
|
|
int err;
|
|
|
|
list = alloc_list();
|
|
ABORT_ON(!list);
|
|
err = parse_events_add_numeric(_parse_state, list, (u32)$1, $3, $4,
|
|
/*wildcard=*/false);
|
|
parse_events_terms__delete($4);
|
|
if (err) {
|
|
free(list);
|
|
YYABORT;
|
|
}
|
|
$$ = list;
|
|
}
|
|
|
|
event_legacy_raw:
|
|
PE_RAW opt_event_config
|
|
{
|
|
struct list_head *list;
|
|
int err;
|
|
u64 num;
|
|
|
|
list = alloc_list();
|
|
ABORT_ON(!list);
|
|
errno = 0;
|
|
num = strtoull($1 + 1, NULL, 16);
|
|
ABORT_ON(errno);
|
|
free($1);
|
|
err = parse_events_add_numeric(_parse_state, list, PERF_TYPE_RAW, num, $2,
|
|
/*wildcard=*/false);
|
|
parse_events_terms__delete($2);
|
|
if (err) {
|
|
free(list);
|
|
YYABORT;
|
|
}
|
|
$$ = list;
|
|
}
|
|
|
|
event_bpf_file:
|
|
PE_BPF_OBJECT opt_event_config
|
|
{
|
|
struct parse_events_state *parse_state = _parse_state;
|
|
struct list_head *list;
|
|
int err;
|
|
|
|
list = alloc_list();
|
|
ABORT_ON(!list);
|
|
err = parse_events_load_bpf(parse_state, list, $1, false, $2);
|
|
parse_events_terms__delete($2);
|
|
free($1);
|
|
if (err) {
|
|
free(list);
|
|
YYABORT;
|
|
}
|
|
$$ = list;
|
|
}
|
|
|
|
|
PE_BPF_SOURCE opt_event_config
|
|
{
|
|
struct list_head *list;
|
|
int err;
|
|
|
|
list = alloc_list();
|
|
ABORT_ON(!list);
|
|
err = parse_events_load_bpf(_parse_state, list, $1, true, $2);
|
|
parse_events_terms__delete($2);
|
|
if (err) {
|
|
free(list);
|
|
YYABORT;
|
|
}
|
|
$$ = list;
|
|
}
|
|
|
|
opt_event_config:
|
|
'/' event_config '/'
|
|
{
|
|
$$ = $2;
|
|
}
|
|
|
|
|
'/' '/'
|
|
{
|
|
$$ = NULL;
|
|
}
|
|
|
|
|
{
|
|
$$ = NULL;
|
|
}
|
|
|
|
opt_pmu_config:
|
|
'/' event_config '/'
|
|
{
|
|
$$ = $2;
|
|
}
|
|
|
|
|
'/' '/'
|
|
{
|
|
$$ = NULL;
|
|
}
|
|
|
|
start_terms: event_config
|
|
{
|
|
struct parse_events_state *parse_state = _parse_state;
|
|
if (parse_state->terms) {
|
|
parse_events_terms__delete ($1);
|
|
YYABORT;
|
|
}
|
|
parse_state->terms = $1;
|
|
}
|
|
|
|
event_config:
|
|
event_config ',' event_term
|
|
{
|
|
struct list_head *head = $1;
|
|
struct parse_events_term *term = $3;
|
|
|
|
if (!head) {
|
|
parse_events_term__delete(term);
|
|
YYABORT;
|
|
}
|
|
list_add_tail(&term->list, head);
|
|
$$ = $1;
|
|
}
|
|
|
|
|
event_term
|
|
{
|
|
struct list_head *head = malloc(sizeof(*head));
|
|
struct parse_events_term *term = $1;
|
|
|
|
ABORT_ON(!head);
|
|
INIT_LIST_HEAD(head);
|
|
list_add_tail(&term->list, head);
|
|
$$ = head;
|
|
}
|
|
|
|
name_or_raw: PE_RAW | PE_NAME | PE_LEGACY_CACHE
|
|
|
|
name_or_legacy: PE_NAME | PE_LEGACY_CACHE
|
|
|
|
event_term:
|
|
PE_RAW
|
|
{
|
|
struct parse_events_term *term;
|
|
|
|
if (parse_events_term__str(&term, PARSE_EVENTS__TERM_TYPE_RAW,
|
|
strdup("raw"), $1, &@1, &@1)) {
|
|
free($1);
|
|
YYABORT;
|
|
}
|
|
$$ = term;
|
|
}
|
|
|
|
|
name_or_raw '=' name_or_legacy
|
|
{
|
|
struct parse_events_term *term;
|
|
|
|
if (parse_events_term__str(&term, PARSE_EVENTS__TERM_TYPE_USER,
|
|
$1, $3, &@1, &@3)) {
|
|
free($1);
|
|
free($3);
|
|
YYABORT;
|
|
}
|
|
$$ = term;
|
|
}
|
|
|
|
|
name_or_raw '=' PE_VALUE
|
|
{
|
|
struct parse_events_term *term;
|
|
|
|
if (parse_events_term__num(&term, PARSE_EVENTS__TERM_TYPE_USER,
|
|
$1, $3, false, &@1, &@3)) {
|
|
free($1);
|
|
YYABORT;
|
|
}
|
|
$$ = term;
|
|
}
|
|
|
|
|
name_or_raw '=' PE_TERM_HW
|
|
{
|
|
struct parse_events_term *term;
|
|
|
|
if (parse_events_term__str(&term, PARSE_EVENTS__TERM_TYPE_USER,
|
|
$1, $3.str, &@1, &@3)) {
|
|
free($1);
|
|
free($3.str);
|
|
YYABORT;
|
|
}
|
|
$$ = term;
|
|
}
|
|
|
|
|
PE_LEGACY_CACHE
|
|
{
|
|
struct parse_events_term *term;
|
|
|
|
if (parse_events_term__num(&term, PARSE_EVENTS__TERM_TYPE_LEGACY_CACHE,
|
|
$1, 1, true, &@1, NULL)) {
|
|
free($1);
|
|
YYABORT;
|
|
}
|
|
$$ = term;
|
|
}
|
|
|
|
|
PE_NAME
|
|
{
|
|
struct parse_events_term *term;
|
|
|
|
if (parse_events_term__num(&term, PARSE_EVENTS__TERM_TYPE_USER,
|
|
$1, 1, true, &@1, NULL)) {
|
|
free($1);
|
|
YYABORT;
|
|
}
|
|
$$ = term;
|
|
}
|
|
|
|
|
PE_TERM_HW
|
|
{
|
|
struct parse_events_term *term;
|
|
|
|
if (parse_events_term__num(&term, PARSE_EVENTS__TERM_TYPE_HARDWARE,
|
|
$1.str, $1.num & 255, false, &@1, NULL)) {
|
|
free($1.str);
|
|
YYABORT;
|
|
}
|
|
$$ = term;
|
|
}
|
|
|
|
|
PE_TERM '=' name_or_legacy
|
|
{
|
|
struct parse_events_term *term;
|
|
|
|
if (parse_events_term__str(&term, (int)$1, NULL, $3, &@1, &@3)) {
|
|
free($3);
|
|
YYABORT;
|
|
}
|
|
$$ = term;
|
|
}
|
|
|
|
|
PE_TERM '=' PE_TERM_HW
|
|
{
|
|
struct parse_events_term *term;
|
|
|
|
if (parse_events_term__str(&term, (int)$1, NULL, $3.str, &@1, &@3)) {
|
|
free($3.str);
|
|
YYABORT;
|
|
}
|
|
$$ = term;
|
|
}
|
|
|
|
|
PE_TERM '=' PE_TERM
|
|
{
|
|
struct parse_events_term *term;
|
|
|
|
ABORT_ON(parse_events_term__term(&term, (int)$1, (int)$3, &@1, &@3));
|
|
$$ = term;
|
|
}
|
|
|
|
|
PE_TERM '=' PE_VALUE
|
|
{
|
|
struct parse_events_term *term;
|
|
|
|
ABORT_ON(parse_events_term__num(&term, (int)$1, NULL, $3, false, &@1, &@3));
|
|
$$ = term;
|
|
}
|
|
|
|
|
PE_TERM
|
|
{
|
|
struct parse_events_term *term;
|
|
|
|
ABORT_ON(parse_events_term__num(&term, (int)$1, NULL, 1, true, &@1, NULL));
|
|
$$ = term;
|
|
}
|
|
|
|
|
name_or_raw array '=' name_or_legacy
|
|
{
|
|
struct parse_events_term *term;
|
|
|
|
if (parse_events_term__str(&term, PARSE_EVENTS__TERM_TYPE_USER,
|
|
$1, $4, &@1, &@4)) {
|
|
free($1);
|
|
free($4);
|
|
free($2.ranges);
|
|
YYABORT;
|
|
}
|
|
term->array = $2;
|
|
$$ = term;
|
|
}
|
|
|
|
|
name_or_raw array '=' PE_VALUE
|
|
{
|
|
struct parse_events_term *term;
|
|
|
|
if (parse_events_term__num(&term, PARSE_EVENTS__TERM_TYPE_USER,
|
|
$1, $4, false, &@1, &@4)) {
|
|
free($1);
|
|
free($2.ranges);
|
|
YYABORT;
|
|
}
|
|
term->array = $2;
|
|
$$ = term;
|
|
}
|
|
|
|
|
PE_DRV_CFG_TERM
|
|
{
|
|
struct parse_events_term *term;
|
|
char *config = strdup($1);
|
|
|
|
ABORT_ON(!config);
|
|
if (parse_events_term__str(&term, PARSE_EVENTS__TERM_TYPE_DRV_CFG,
|
|
config, $1, &@1, NULL)) {
|
|
free($1);
|
|
free(config);
|
|
YYABORT;
|
|
}
|
|
$$ = term;
|
|
}
|
|
|
|
array:
|
|
'[' array_terms ']'
|
|
{
|
|
$$ = $2;
|
|
}
|
|
|
|
|
PE_ARRAY_ALL
|
|
{
|
|
$$.nr_ranges = 0;
|
|
$$.ranges = NULL;
|
|
}
|
|
|
|
array_terms:
|
|
array_terms ',' array_term
|
|
{
|
|
struct parse_events_array new_array;
|
|
|
|
new_array.nr_ranges = $1.nr_ranges + $3.nr_ranges;
|
|
new_array.ranges = realloc($1.ranges,
|
|
sizeof(new_array.ranges[0]) *
|
|
new_array.nr_ranges);
|
|
ABORT_ON(!new_array.ranges);
|
|
memcpy(&new_array.ranges[$1.nr_ranges], $3.ranges,
|
|
$3.nr_ranges * sizeof(new_array.ranges[0]));
|
|
free($3.ranges);
|
|
$$ = new_array;
|
|
}
|
|
|
|
|
array_term
|
|
|
|
array_term:
|
|
PE_VALUE
|
|
{
|
|
struct parse_events_array array;
|
|
|
|
array.nr_ranges = 1;
|
|
array.ranges = malloc(sizeof(array.ranges[0]));
|
|
ABORT_ON(!array.ranges);
|
|
array.ranges[0].start = $1;
|
|
array.ranges[0].length = 1;
|
|
$$ = array;
|
|
}
|
|
|
|
|
PE_VALUE PE_ARRAY_RANGE PE_VALUE
|
|
{
|
|
struct parse_events_array array;
|
|
|
|
ABORT_ON($3 < $1);
|
|
array.nr_ranges = 1;
|
|
array.ranges = malloc(sizeof(array.ranges[0]));
|
|
ABORT_ON(!array.ranges);
|
|
array.ranges[0].start = $1;
|
|
array.ranges[0].length = $3 - $1 + 1;
|
|
$$ = array;
|
|
}
|
|
|
|
sep_dc: ':' |
|
|
|
|
sep_slash_slash_dc: '/' '/' | ':' |
|
|
|
|
%%
|
|
|
|
void parse_events_error(YYLTYPE *loc, void *parse_state,
|
|
void *scanner __maybe_unused,
|
|
char const *msg __maybe_unused)
|
|
{
|
|
parse_events_evlist_error(parse_state, loc->last_column, "parser error");
|
|
}
|