Adding upstream version 6.7.7.upstream/6.7.7

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

2 files changed, 20 insertions, 167 deletions

diff --git a/tools/perf/arch/x86/util/intel-pt.c b/tools/perf/arch/x86/util/intel-pt.c
index 3180779158..fa0c718b9e 100644
--- a/tools/perf/arch/x86/util/intel-pt.c
+++ b/tools/perf/arch/x86/util/intel-pt.c
@@ -60,36 +60,31 @@ struct intel_pt_recording {
 	size_t				priv_size;
 };
 
-static int intel_pt_parse_terms_with_default(struct perf_pmu *pmu,
+static int intel_pt_parse_terms_with_default(const struct perf_pmu *pmu,
 					     const char *str,
 					     u64 *config)
 {
-	struct list_head *terms;
+	struct parse_events_terms terms;
 	struct perf_event_attr attr = { .size = 0, };
 	int err;
 
-	terms = malloc(sizeof(struct list_head));
-	if (!terms)
-		return -ENOMEM;
-
-	INIT_LIST_HEAD(terms);
-
-	err = parse_events_terms(terms, str, /*input=*/ NULL);
+	parse_events_terms__init(&terms);
+	err = parse_events_terms(&terms, str, /*input=*/ NULL);
 	if (err)
 		goto out_free;
 
 	attr.config = *config;
-	err = perf_pmu__config_terms(pmu, &attr, terms, /*zero=*/true, /*err=*/NULL);
+	err = perf_pmu__config_terms(pmu, &attr, &terms, /*zero=*/true, /*err=*/NULL);
 	if (err)
 		goto out_free;
 
 	*config = attr.config;
 out_free:
-	parse_events_terms__delete(terms);
+	parse_events_terms__exit(&terms);
 	return err;
 }
 
-static int intel_pt_parse_terms(struct perf_pmu *pmu, const char *str, u64 *config)
+static int intel_pt_parse_terms(const struct perf_pmu *pmu, const char *str, u64 *config)
 {
 	*config = 0;
 	return intel_pt_parse_terms_with_default(pmu, str, config);
@@ -182,7 +177,7 @@ static int intel_pt_pick_bit(int bits, int target)
 	return pick;
 }
 
-static u64 intel_pt_default_config(struct perf_pmu *intel_pt_pmu)
+static u64 intel_pt_default_config(const struct perf_pmu *intel_pt_pmu)
 {
 	char buf[256];
 	int mtc, mtc_periods = 0, mtc_period;
@@ -261,20 +256,17 @@ static int intel_pt_parse_snapshot_options(struct auxtrace_record *itr,
 	return 0;
 }
 
-struct perf_event_attr *
-intel_pt_pmu_default_config(struct perf_pmu *intel_pt_pmu)
+void intel_pt_pmu_default_config(const struct perf_pmu *intel_pt_pmu,
+				 struct perf_event_attr *attr)
 {
-	struct perf_event_attr *attr;
-
-	attr = zalloc(sizeof(struct perf_event_attr));
-	if (!attr)
-		return NULL;
-
-	attr->config = intel_pt_default_config(intel_pt_pmu);
+	static u64 config;
+	static bool initialized;
 
-	intel_pt_pmu->selectable = true;
-
-	return attr;
+	if (!initialized) {
+		config = intel_pt_default_config(intel_pt_pmu);
+		initialized = true;
+	}
+	attr->config = config;
 }
 
 static const char *intel_pt_find_filter(struct evlist *evlist,
diff --git a/tools/perf/arch/x86/util/pmu.c b/tools/perf/arch/x86/util/pmu.c
index f428cffb03..469555ae9b 100644
--- a/tools/perf/arch/x86/util/pmu.c
+++ b/tools/perf/arch/x86/util/pmu.c
@@ -17,158 +17,19 @@
 #include "../../../util/pmus.h"
 #include "env.h"
 
-struct pmu_alias {
-	char *name;
-	char *alias;
-	struct list_head list;
-};
-
-static LIST_HEAD(pmu_alias_name_list);
-static bool cached_list;
-
-struct perf_event_attr *perf_pmu__get_default_config(struct perf_pmu *pmu __maybe_unused)
+void perf_pmu__arch_init(struct perf_pmu *pmu __maybe_unused)
 {
 #ifdef HAVE_AUXTRACE_SUPPORT
 	if (!strcmp(pmu->name, INTEL_PT_PMU_NAME)) {
 		pmu->auxtrace = true;
-		return intel_pt_pmu_default_config(pmu);
+		pmu->selectable = true;
+		pmu->perf_event_attr_init_default = intel_pt_pmu_default_config;
 	}
 	if (!strcmp(pmu->name, INTEL_BTS_PMU_NAME)) {
 		pmu->auxtrace = true;
 		pmu->selectable = true;
 	}
 #endif
-	return NULL;
-}
-
-static void pmu_alias__delete(struct pmu_alias *pmu_alias)
-{
-	if (!pmu_alias)
-		return;
-
-	zfree(&pmu_alias->name);
-	zfree(&pmu_alias->alias);
-	free(pmu_alias);
-}
-
-static struct pmu_alias *pmu_alias__new(char *name, char *alias)
-{
-	struct pmu_alias *pmu_alias = zalloc(sizeof(*pmu_alias));
-
-	if (pmu_alias) {
-		pmu_alias->name = strdup(name);
-		if (!pmu_alias->name)
-			goto out_delete;
-
-		pmu_alias->alias = strdup(alias);
-		if (!pmu_alias->alias)
-			goto out_delete;
-	}
-	return pmu_alias;
-
-out_delete:
-	pmu_alias__delete(pmu_alias);
-	return NULL;
-}
-
-static int setup_pmu_alias_list(void)
-{
-	int fd, dirfd;
-	DIR *dir;
-	struct dirent *dent;
-	struct pmu_alias *pmu_alias;
-	char buf[MAX_PMU_NAME_LEN];
-	FILE *file;
-	int ret = -ENOMEM;
-
-	dirfd = perf_pmu__event_source_devices_fd();
-	if (dirfd < 0)
-		return -1;
-
-	dir = fdopendir(dirfd);
-	if (!dir)
-		return -errno;
-
-	while ((dent = readdir(dir))) {
-		if (!strcmp(dent->d_name, ".") ||
-		    !strcmp(dent->d_name, ".."))
-			continue;
-
-		fd = perf_pmu__pathname_fd(dirfd, dent->d_name, "alias", O_RDONLY);
-		if (fd < 0)
-			continue;
-
-		file = fdopen(fd, "r");
-		if (!file)
-			continue;
-
-		if (!fgets(buf, sizeof(buf), file)) {
-			fclose(file);
-			continue;
-		}
-
-		fclose(file);
-
-		/* Remove the last '\n' */
-		buf[strlen(buf) - 1] = 0;
-
-		pmu_alias = pmu_alias__new(dent->d_name, buf);
-		if (!pmu_alias)
-			goto close_dir;
-
-		list_add_tail(&pmu_alias->list, &pmu_alias_name_list);
-	}
-
-	ret = 0;
-
-close_dir:
-	closedir(dir);
-	return ret;
-}
-
-static const char *__pmu_find_real_name(const char *name)
-{
-	struct pmu_alias *pmu_alias;
-
-	list_for_each_entry(pmu_alias, &pmu_alias_name_list, list) {
-		if (!strcmp(name, pmu_alias->alias))
-			return pmu_alias->name;
-	}
-
-	return name;
-}
-
-const char *pmu_find_real_name(const char *name)
-{
-	if (cached_list)
-		return __pmu_find_real_name(name);
-
-	setup_pmu_alias_list();
-	cached_list = true;
-
-	return __pmu_find_real_name(name);
-}
-
-static const char *__pmu_find_alias_name(const char *name)
-{
-	struct pmu_alias *pmu_alias;
-
-	list_for_each_entry(pmu_alias, &pmu_alias_name_list, list) {
-		if (!strcmp(name, pmu_alias->name))
-			return pmu_alias->alias;
-	}
-	return NULL;
-}
-
-const char *pmu_find_alias_name(const char *name)
-{
-	if (cached_list)
-		return __pmu_find_alias_name(name);
-
-	setup_pmu_alias_list();
-	cached_list = true;
-
-	return __pmu_find_alias_name(name);
 }
 
 int perf_pmus__num_mem_pmus(void)