From cb94a02e7494c001fa8b5a4c5e16693fafd98530 Mon Sep 17 00:00:00 2001 From: Ian Rogers Date: Thu, 23 Sep 2021 00:46:04 -0700 Subject: [PATCH] perf metric: Restructure struct expr_parse_ctx. A later change to parsing the ids out (in expr__find_other) will potentially drop hashmaps and so it is more convenient to move expr_parse_ctx to have a hashmap pointer rather than a struct value. As this pointer must be freed, rather than just going out of scope, add expr__ctx_new and expr__ctx_free to manage expr_parse_ctx memory. Adjust use of struct expr_parse_ctx accordingly. Reviewed-by: Andi Kleen Signed-off-by: Ian Rogers Tested-by: John Garry Acked-by: Jiri Olsa Cc: Alexander Shishkin Cc: Ingo Molnar Cc: Jin Yao Cc: Kajol Jain Cc: Mark Rutland Cc: Namhyung Kim Cc: Paul Clarke Cc: Peter Zijlstra Cc: Sandeep Dasgupta Cc: Stephane Eranian Link: https://lore.kernel.org/r/20210923074616.674826-2-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/tests/expr.c | 81 ++++++++++++++++++----------------- tools/perf/tests/pmu-events.c | 47 ++++++++++++-------- tools/perf/util/expr.c | 39 +++++++++++++---- tools/perf/util/expr.h | 5 ++- tools/perf/util/metricgroup.c | 44 ++++++++++--------- tools/perf/util/stat-shadow.c | 50 +++++++++++++-------- 6 files changed, 159 insertions(+), 107 deletions(-) diff --git a/tools/perf/tests/expr.c b/tools/perf/tests/expr.c index 4d01051951cd..b0a3b5fd0c00 100644 --- a/tools/perf/tests/expr.c +++ b/tools/perf/tests/expr.c @@ -22,67 +22,70 @@ int test__expr(struct test *t __maybe_unused, int subtest __maybe_unused) const char *p; double val; int ret; - struct expr_parse_ctx ctx; + struct expr_parse_ctx *ctx; - expr__ctx_init(&ctx); - expr__add_id_val(&ctx, strdup("FOO"), 1); - expr__add_id_val(&ctx, strdup("BAR"), 2); + ctx = expr__ctx_new(); + TEST_ASSERT_VAL("expr__ctx_new", ctx); + expr__add_id_val(ctx, strdup("FOO"), 1); + expr__add_id_val(ctx, strdup("BAR"), 2); - ret = test(&ctx, "1+1", 2); - ret |= test(&ctx, "FOO+BAR", 3); - ret |= test(&ctx, "(BAR/2)%2", 1); - ret |= test(&ctx, "1 - -4", 5); - ret |= test(&ctx, "(FOO-1)*2 + (BAR/2)%2 - -4", 5); - ret |= test(&ctx, "1-1 | 1", 1); - ret |= test(&ctx, "1-1 & 1", 0); - ret |= test(&ctx, "min(1,2) + 1", 2); - ret |= test(&ctx, "max(1,2) + 1", 3); - ret |= test(&ctx, "1+1 if 3*4 else 0", 2); - ret |= test(&ctx, "1.1 + 2.1", 3.2); - ret |= test(&ctx, ".1 + 2.", 2.1); - ret |= test(&ctx, "d_ratio(1, 2)", 0.5); - ret |= test(&ctx, "d_ratio(2.5, 0)", 0); - ret |= test(&ctx, "1.1 < 2.2", 1); - ret |= test(&ctx, "2.2 > 1.1", 1); - ret |= test(&ctx, "1.1 < 1.1", 0); - ret |= test(&ctx, "2.2 > 2.2", 0); - ret |= test(&ctx, "2.2 < 1.1", 0); - ret |= test(&ctx, "1.1 > 2.2", 0); + ret = test(ctx, "1+1", 2); + ret |= test(ctx, "FOO+BAR", 3); + ret |= test(ctx, "(BAR/2)%2", 1); + ret |= test(ctx, "1 - -4", 5); + ret |= test(ctx, "(FOO-1)*2 + (BAR/2)%2 - -4", 5); + ret |= test(ctx, "1-1 | 1", 1); + ret |= test(ctx, "1-1 & 1", 0); + ret |= test(ctx, "min(1,2) + 1", 2); + ret |= test(ctx, "max(1,2) + 1", 3); + ret |= test(ctx, "1+1 if 3*4 else 0", 2); + ret |= test(ctx, "1.1 + 2.1", 3.2); + ret |= test(ctx, ".1 + 2.", 2.1); + ret |= test(ctx, "d_ratio(1, 2)", 0.5); + ret |= test(ctx, "d_ratio(2.5, 0)", 0); + ret |= test(ctx, "1.1 < 2.2", 1); + ret |= test(ctx, "2.2 > 1.1", 1); + ret |= test(ctx, "1.1 < 1.1", 0); + ret |= test(ctx, "2.2 > 2.2", 0); + ret |= test(ctx, "2.2 < 1.1", 0); + ret |= test(ctx, "1.1 > 2.2", 0); - if (ret) + if (ret) { + expr__ctx_free(ctx); return ret; + } p = "FOO/0"; - ret = expr__parse(&val, &ctx, p, 1); + ret = expr__parse(&val, ctx, p, 1); TEST_ASSERT_VAL("division by zero", ret == -1); p = "BAR/"; - ret = expr__parse(&val, &ctx, p, 1); + ret = expr__parse(&val, ctx, p, 1); TEST_ASSERT_VAL("missing operand", ret == -1); - expr__ctx_clear(&ctx); + expr__ctx_clear(ctx); TEST_ASSERT_VAL("find other", expr__find_other("FOO + BAR + BAZ + BOZO", "FOO", - &ctx, 1) == 0); - TEST_ASSERT_VAL("find other", hashmap__size(&ctx.ids) == 3); - TEST_ASSERT_VAL("find other", hashmap__find(&ctx.ids, "BAR", + ctx, 1) == 0); + TEST_ASSERT_VAL("find other", hashmap__size(ctx->ids) == 3); + TEST_ASSERT_VAL("find other", hashmap__find(ctx->ids, "BAR", (void **)&val_ptr)); - TEST_ASSERT_VAL("find other", hashmap__find(&ctx.ids, "BAZ", + TEST_ASSERT_VAL("find other", hashmap__find(ctx->ids, "BAZ", (void **)&val_ptr)); - TEST_ASSERT_VAL("find other", hashmap__find(&ctx.ids, "BOZO", + TEST_ASSERT_VAL("find other", hashmap__find(ctx->ids, "BOZO", (void **)&val_ptr)); - expr__ctx_clear(&ctx); + expr__ctx_clear(ctx); TEST_ASSERT_VAL("find other", expr__find_other("EVENT1\\,param\\=?@ + EVENT2\\,param\\=?@", - NULL, &ctx, 3) == 0); - TEST_ASSERT_VAL("find other", hashmap__size(&ctx.ids) == 2); - TEST_ASSERT_VAL("find other", hashmap__find(&ctx.ids, "EVENT1,param=3/", + NULL, ctx, 3) == 0); + TEST_ASSERT_VAL("find other", hashmap__size(ctx->ids) == 2); + TEST_ASSERT_VAL("find other", hashmap__find(ctx->ids, "EVENT1,param=3/", (void **)&val_ptr)); - TEST_ASSERT_VAL("find other", hashmap__find(&ctx.ids, "EVENT2,param=3/", + TEST_ASSERT_VAL("find other", hashmap__find(ctx->ids, "EVENT2,param=3/", (void **)&val_ptr)); - expr__ctx_clear(&ctx); + expr__ctx_free(ctx); return 0; } diff --git a/tools/perf/tests/pmu-events.c b/tools/perf/tests/pmu-events.c index f14266a4c513..91076ab0514b 100644 --- a/tools/perf/tests/pmu-events.c +++ b/tools/perf/tests/pmu-events.c @@ -836,7 +836,7 @@ static int resolve_metric_simple(struct expr_parse_ctx *pctx, do { all = true; - hashmap__for_each_entry_safe((&pctx->ids), cur, cur_tmp, bkt) { + hashmap__for_each_entry_safe(pctx->ids, cur, cur_tmp, bkt) { struct metric_ref *ref; struct pmu_event *pe; @@ -890,9 +890,14 @@ static int test_parsing(void) struct pmu_event *pe; int i, j, k; int ret = 0; - struct expr_parse_ctx ctx; + struct expr_parse_ctx *ctx; double result; + ctx = expr__ctx_new(); + if (!ctx) { + pr_debug("expr__ctx_new failed"); + return TEST_FAIL; + } i = 0; for (;;) { map = &pmu_events_map[i++]; @@ -910,15 +915,15 @@ static int test_parsing(void) break; if (!pe->metric_expr) continue; - expr__ctx_init(&ctx); - if (expr__find_other(pe->metric_expr, NULL, &ctx, 0) + expr__ctx_clear(ctx); + if (expr__find_other(pe->metric_expr, NULL, ctx, 0) < 0) { expr_failure("Parse other failed", map, pe); ret++; continue; } - if (resolve_metric_simple(&ctx, &compound_list, map, + if (resolve_metric_simple(ctx, &compound_list, map, pe->metric_name)) { expr_failure("Could not resolve metrics", map, pe); ret++; @@ -931,27 +936,27 @@ static int test_parsing(void) * make them unique. */ k = 1; - hashmap__for_each_entry((&ctx.ids), cur, bkt) - expr__add_id_val(&ctx, strdup(cur->key), k++); + hashmap__for_each_entry(ctx->ids, cur, bkt) + expr__add_id_val(ctx, strdup(cur->key), k++); - hashmap__for_each_entry((&ctx.ids), cur, bkt) { + hashmap__for_each_entry(ctx->ids, cur, bkt) { if (check_parse_cpu(cur->key, map == cpus_map, pe)) ret++; } list_for_each_entry_safe(metric, tmp, &compound_list, list) { - expr__add_ref(&ctx, &metric->metric_ref); + expr__add_ref(ctx, &metric->metric_ref); free(metric); } - if (expr__parse(&result, &ctx, pe->metric_expr, 0)) { + if (expr__parse(&result, ctx, pe->metric_expr, 0)) { expr_failure("Parse failed", map, pe); ret++; } - expr__ctx_clear(&ctx); } } + expr__ctx_free(ctx); /* TODO: fail when not ok */ exit: return ret == 0 ? TEST_OK : TEST_SKIP; @@ -971,7 +976,7 @@ static struct test_metric metrics[] = { static int metric_parse_fake(const char *str) { - struct expr_parse_ctx ctx; + struct expr_parse_ctx *ctx; struct hashmap_entry *cur; double result; int ret = -1; @@ -980,8 +985,12 @@ static int metric_parse_fake(const char *str) pr_debug("parsing '%s'\n", str); - expr__ctx_init(&ctx); - if (expr__find_other(str, NULL, &ctx, 0) < 0) { + ctx = expr__ctx_new(); + if (!ctx) { + pr_debug("expr__ctx_new failed"); + return TEST_FAIL; + } + if (expr__find_other(str, NULL, ctx, 0) < 0) { pr_err("expr__find_other failed\n"); return -1; } @@ -992,23 +1001,23 @@ static int metric_parse_fake(const char *str) * make them unique. */ i = 1; - hashmap__for_each_entry((&ctx.ids), cur, bkt) - expr__add_id_val(&ctx, strdup(cur->key), i++); + hashmap__for_each_entry(ctx->ids, cur, bkt) + expr__add_id_val(ctx, strdup(cur->key), i++); - hashmap__for_each_entry((&ctx.ids), cur, bkt) { + hashmap__for_each_entry(ctx->ids, cur, bkt) { if (check_parse_fake(cur->key)) { pr_err("check_parse_fake failed\n"); goto out; } } - if (expr__parse(&result, &ctx, str, 0)) + if (expr__parse(&result, ctx, str, 0)) pr_err("expr__parse failed\n"); else ret = 0; out: - expr__ctx_clear(&ctx); + expr__ctx_free(ctx); return ret; } diff --git a/tools/perf/util/expr.c b/tools/perf/util/expr.c index a850fd0be3ee..7b1c06772a49 100644 --- a/tools/perf/util/expr.c +++ b/tools/perf/util/expr.c @@ -73,7 +73,7 @@ int expr__add_id(struct expr_parse_ctx *ctx, const char *id) data_ptr->parent = ctx->parent; data_ptr->kind = EXPR_ID_DATA__PARENT; - ret = hashmap__set(&ctx->ids, id, data_ptr, + ret = hashmap__set(ctx->ids, id, data_ptr, (const void **)&old_key, (void **)&old_data); if (ret) free(data_ptr); @@ -95,7 +95,7 @@ int expr__add_id_val(struct expr_parse_ctx *ctx, const char *id, double val) data_ptr->val = val; data_ptr->kind = EXPR_ID_DATA__VALUE; - ret = hashmap__set(&ctx->ids, id, data_ptr, + ret = hashmap__set(ctx->ids, id, data_ptr, (const void **)&old_key, (void **)&old_data); if (ret) free(data_ptr); @@ -140,7 +140,7 @@ int expr__add_ref(struct expr_parse_ctx *ctx, struct metric_ref *ref) data_ptr->ref.metric_expr = ref->metric_expr; data_ptr->kind = EXPR_ID_DATA__REF; - ret = hashmap__set(&ctx->ids, name, data_ptr, + ret = hashmap__set(ctx->ids, name, data_ptr, (const void **)&old_key, (void **)&old_data); if (ret) free(data_ptr); @@ -156,7 +156,7 @@ int expr__add_ref(struct expr_parse_ctx *ctx, struct metric_ref *ref) int expr__get_id(struct expr_parse_ctx *ctx, const char *id, struct expr_id_data **data) { - return hashmap__find(&ctx->ids, id, (void **)data) ? 0 : -1; + return hashmap__find(ctx->ids, id, (void **)data) ? 0 : -1; } int expr__resolve_id(struct expr_parse_ctx *ctx, const char *id, @@ -205,15 +205,23 @@ void expr__del_id(struct expr_parse_ctx *ctx, const char *id) struct expr_id_data *old_val = NULL; char *old_key = NULL; - hashmap__delete(&ctx->ids, id, + hashmap__delete(ctx->ids, id, (const void **)&old_key, (void **)&old_val); free(old_key); free(old_val); } -void expr__ctx_init(struct expr_parse_ctx *ctx) +struct expr_parse_ctx *expr__ctx_new(void) { - hashmap__init(&ctx->ids, key_hash, key_equal, NULL); + struct expr_parse_ctx *ctx; + + ctx = malloc(sizeof(struct expr_parse_ctx)); + if (!ctx) + return NULL; + + ctx->ids = hashmap__new(key_hash, key_equal, NULL); + ctx->parent = NULL; + return ctx; } void expr__ctx_clear(struct expr_parse_ctx *ctx) @@ -221,11 +229,24 @@ void expr__ctx_clear(struct expr_parse_ctx *ctx) struct hashmap_entry *cur; size_t bkt; - hashmap__for_each_entry((&ctx->ids), cur, bkt) { + hashmap__for_each_entry(ctx->ids, cur, bkt) { free((char *)cur->key); free(cur->value); } - hashmap__clear(&ctx->ids); + hashmap__clear(ctx->ids); +} + +void expr__ctx_free(struct expr_parse_ctx *ctx) +{ + struct hashmap_entry *cur; + size_t bkt; + + hashmap__for_each_entry(ctx->ids, cur, bkt) { + free((char *)cur->key); + free(cur->value); + } + hashmap__free(ctx->ids); + free(ctx); } static int diff --git a/tools/perf/util/expr.h b/tools/perf/util/expr.h index 85df3e4771e4..5fa394f10418 100644 --- a/tools/perf/util/expr.h +++ b/tools/perf/util/expr.h @@ -19,7 +19,7 @@ struct expr_id { }; struct expr_parse_ctx { - struct hashmap ids; + struct hashmap *ids; struct expr_id *parent; }; @@ -30,8 +30,9 @@ struct expr_scanner_ctx { int runtime; }; -void expr__ctx_init(struct expr_parse_ctx *ctx); +struct expr_parse_ctx *expr__ctx_new(void); void expr__ctx_clear(struct expr_parse_ctx *ctx); +void expr__ctx_free(struct expr_parse_ctx *ctx); void expr__del_id(struct expr_parse_ctx *ctx, const char *id); int expr__add_id(struct expr_parse_ctx *ctx, const char *id); int expr__add_id_val(struct expr_parse_ctx *ctx, const char *id, double val); diff --git a/tools/perf/util/metricgroup.c b/tools/perf/util/metricgroup.c index 29b747ac31c1..b7924a2f1f45 100644 --- a/tools/perf/util/metricgroup.c +++ b/tools/perf/util/metricgroup.c @@ -118,7 +118,7 @@ struct metric_ref_node { struct metric { struct list_head nd; - struct expr_parse_ctx pctx; + struct expr_parse_ctx *pctx; const char *metric_name; const char *metric_expr; const char *metric_unit; @@ -198,7 +198,7 @@ static struct evsel *find_evsel_group(struct evlist *perf_evlist, struct evsel *ev, *current_leader = NULL; struct expr_id_data *val_ptr; int i = 0, matched_events = 0, events_to_match; - const int idnum = (int)hashmap__size(&pctx->ids); + const int idnum = (int)hashmap__size(pctx->ids); /* * duration_time is always grouped separately, when events are grouped @@ -206,7 +206,7 @@ static struct evsel *find_evsel_group(struct evlist *perf_evlist, * add it to metric_events at the end. */ if (!has_constraint && - hashmap__find(&pctx->ids, "duration_time", (void **)&val_ptr)) + hashmap__find(pctx->ids, "duration_time", (void **)&val_ptr)) events_to_match = idnum - 1; else events_to_match = idnum; @@ -242,7 +242,7 @@ static struct evsel *find_evsel_group(struct evlist *perf_evlist, if (contains_event(metric_events, matched_events, ev->name)) continue; /* Does this event belong to the parse context? */ - if (hashmap__find(&pctx->ids, ev->name, (void **)&val_ptr)) + if (hashmap__find(pctx->ids, ev->name, (void **)&val_ptr)) metric_events[matched_events++] = ev; if (matched_events == events_to_match) @@ -322,12 +322,12 @@ static int metricgroup__setup_events(struct list_head *groups, struct metric_ref *metric_refs = NULL; metric_events = calloc(sizeof(void *), - hashmap__size(&m->pctx.ids) + 1); + hashmap__size(m->pctx->ids) + 1); if (!metric_events) { ret = -ENOMEM; break; } - evsel = find_evsel_group(perf_evlist, &m->pctx, + evsel = find_evsel_group(perf_evlist, m->pctx, metric_no_merge, m->has_constraint, metric_events, evlist_used); @@ -693,7 +693,7 @@ static void metricgroup__add_metric_weak_group(struct strbuf *events, size_t bkt; bool no_group = true, has_duration = false; - hashmap__for_each_entry((&ctx->ids), cur, bkt) { + hashmap__for_each_entry(ctx->ids, cur, bkt) { pr_debug("found event %s\n", (const char *)cur->key); /* * Duration time maps to a software event and can make @@ -724,7 +724,7 @@ static void metricgroup__add_metric_non_group(struct strbuf *events, size_t bkt; bool first = true; - hashmap__for_each_entry((&ctx->ids), cur, bkt) { + hashmap__for_each_entry(ctx->ids, cur, bkt) { if (!first) strbuf_addf(events, ","); strbuf_addf(events, "%s", (const char *)cur->key); @@ -799,7 +799,11 @@ static int __add_metric(struct list_head *metric_list, if (!m) return -ENOMEM; - expr__ctx_init(&m->pctx); + m->pctx = expr__ctx_new(); + if (!m->pctx) { + free(m); + return -ENOMEM; + } m->metric_name = pe->metric_name; m->metric_expr = pe->metric_expr; m->metric_unit = pe->unit; @@ -847,15 +851,15 @@ static int __add_metric(struct list_head *metric_list, /* Force all found IDs in metric to have us as parent ID. */ WARN_ON_ONCE(!parent); - m->pctx.parent = parent; + m->pctx->parent = parent; /* * For both the parent and referenced metrics, we parse * all the metric's IDs and add it to the parent context. */ - if (expr__find_other(pe->metric_expr, NULL, &m->pctx, runtime) < 0) { + if (expr__find_other(pe->metric_expr, NULL, m->pctx, runtime) < 0) { if (m->metric_refs_cnt == 0) { - expr__ctx_clear(&m->pctx); + expr__ctx_free(m->pctx); free(m); *mp = NULL; } @@ -878,8 +882,8 @@ static int __add_metric(struct list_head *metric_list, list_for_each_prev(pos, metric_list) { struct metric *old = list_entry(pos, struct metric, nd); - if (hashmap__size(&m->pctx.ids) <= - hashmap__size(&old->pctx.ids)) + if (hashmap__size(m->pctx->ids) <= + hashmap__size(old->pctx->ids)) break; } list_add(&m->nd, pos); @@ -927,7 +931,7 @@ static int recursion_check(struct metric *m, const char *id, struct expr_id **pa * if we already processed 'id', if we did, it's recursion * and we fail. */ - ret = expr__get_id(&m->pctx, id, &data); + ret = expr__get_id(m->pctx, id, &data); if (ret) return ret; @@ -982,7 +986,7 @@ static int __resolve_metric(struct metric *m, */ do { all = true; - hashmap__for_each_entry((&m->pctx.ids), cur, bkt) { + hashmap__for_each_entry(m->pctx->ids, cur, bkt) { struct expr_id *parent; struct pmu_event *pe; @@ -996,7 +1000,7 @@ static int __resolve_metric(struct metric *m, all = false; /* The metric key itself needs to go out.. */ - expr__del_id(&m->pctx, cur->key); + expr__del_id(m->pctx, cur->key); /* ... and it gets resolved to the parent context. */ ret = add_metric(metric_list, pe, metric_no_group, &m, parent, ids); @@ -1144,10 +1148,10 @@ static int metricgroup__add_metric(const char *metric, bool metric_no_group, if (m->has_constraint) { metricgroup__add_metric_non_group(events, - &m->pctx); + m->pctx); } else { metricgroup__add_metric_weak_group(events, - &m->pctx); + m->pctx); } } @@ -1210,7 +1214,7 @@ static void metricgroup__free_metrics(struct list_head *metric_list) list_for_each_entry_safe (m, tmp, metric_list, nd) { metric__free_refs(m); - expr__ctx_clear(&m->pctx); + expr__ctx_free(m->pctx); list_del_init(&m->nd); free(m); } diff --git a/tools/perf/util/stat-shadow.c b/tools/perf/util/stat-shadow.c index 34a7f5c1fff7..c9fa07e49e72 100644 --- a/tools/perf/util/stat-shadow.c +++ b/tools/perf/util/stat-shadow.c @@ -1,8 +1,10 @@ // SPDX-License-Identifier: GPL-2.0 +#include #include #include "evsel.h" #include "stat.h" #include "color.h" +#include "debug.h" #include "pmu.h" #include "rblist.h" #include "evlist.h" @@ -370,12 +372,16 @@ void perf_stat__collect_metric_expr(struct evlist *evsel_list) { struct evsel *counter, *leader, **metric_events, *oc; bool found; - struct expr_parse_ctx ctx; + struct expr_parse_ctx *ctx; struct hashmap_entry *cur; size_t bkt; int i; - expr__ctx_init(&ctx); + ctx = expr__ctx_new(); + if (!ctx) { + pr_debug("expr__ctx_new failed"); + return; + } evlist__for_each_entry(evsel_list, counter) { bool invalid = false; @@ -383,25 +389,25 @@ void perf_stat__collect_metric_expr(struct evlist *evsel_list) if (!counter->metric_expr) continue; - expr__ctx_clear(&ctx); + expr__ctx_clear(ctx); metric_events = counter->metric_events; if (!metric_events) { if (expr__find_other(counter->metric_expr, counter->name, - &ctx, 1) < 0) + ctx, 1) < 0) continue; metric_events = calloc(sizeof(struct evsel *), - hashmap__size(&ctx.ids) + 1); + hashmap__size(ctx->ids) + 1); if (!metric_events) { - expr__ctx_clear(&ctx); + expr__ctx_free(ctx); return; } counter->metric_events = metric_events; } i = 0; - hashmap__for_each_entry((&ctx.ids), cur, bkt) { + hashmap__for_each_entry(ctx->ids, cur, bkt) { const char *metric_name = (const char *)cur->key; found = false; @@ -453,7 +459,7 @@ void perf_stat__collect_metric_expr(struct evlist *evsel_list) counter->metric_expr = NULL; } } - expr__ctx_clear(&ctx); + expr__ctx_free(ctx); } static double runtime_stat_avg(struct runtime_stat *st, @@ -818,7 +824,6 @@ static int prepare_metric(struct evsel **metric_events, char *n, *pn; int i, j, ret; - expr__ctx_init(pctx); for (i = 0; metric_events[i]; i++) { struct saved_value *v; struct stats *stats; @@ -880,17 +885,22 @@ static void generic_metric(struct perf_stat_config *config, struct runtime_stat *st) { print_metric_t print_metric = out->print_metric; - struct expr_parse_ctx pctx; + struct expr_parse_ctx *pctx; double ratio, scale; int i; void *ctxp = out->ctx; - i = prepare_metric(metric_events, metric_refs, &pctx, cpu, st); - if (i < 0) + pctx = expr__ctx_new(); + if (!pctx) return; + i = prepare_metric(metric_events, metric_refs, pctx, cpu, st); + if (i < 0) { + expr__ctx_free(pctx); + return; + } if (!metric_events[i]) { - if (expr__parse(&ratio, &pctx, metric_expr, runtime) == 0) { + if (expr__parse(&ratio, pctx, metric_expr, runtime) == 0) { char *unit; char metric_bf[64]; @@ -926,22 +936,26 @@ static void generic_metric(struct perf_stat_config *config, (metric_name ? metric_name : name) : "", 0); } - expr__ctx_clear(&pctx); + expr__ctx_free(pctx); } double test_generic_metric(struct metric_expr *mexp, int cpu, struct runtime_stat *st) { - struct expr_parse_ctx pctx; + struct expr_parse_ctx *pctx; double ratio = 0.0; - if (prepare_metric(mexp->metric_events, mexp->metric_refs, &pctx, cpu, st) < 0) + pctx = expr__ctx_new(); + if (!pctx) + return NAN; + + if (prepare_metric(mexp->metric_events, mexp->metric_refs, pctx, cpu, st) < 0) goto out; - if (expr__parse(&ratio, &pctx, mexp->metric_expr, 1)) + if (expr__parse(&ratio, pctx, mexp->metric_expr, 1)) ratio = 0.0; out: - expr__ctx_clear(&pctx); + expr__ctx_free(pctx); return ratio; }