Merge tag 'perf-core-for-mingo-2' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core

Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo:

New features:

  - Add API to set values of map entries in a BPF object, be it
    individual map slots or ranges (Wang Nan)

  - Introduce support for the 'bpf-output' event (Wang Nan)

  - Add glue to read perf events in a BPF program (Wang Nan)

User visible changes:

  - Don't stop PMU parsing on alias parse error, allowing the
    addition of new sysfs PMU files without breaking old tools (Andi Kleen)

  - Implement '%' operation in libtraceevent (Daniel Bristot de Oliveira)

  - Allow specifying events via -e in 'perf mem record', also listing what events
    can be specified via 'perf mem record -e list' (Jiri Olsa)

  - Improve support to 'data_src', 'weight' and 'addr' fields in
    'perf script' (Jiri Olsa)

Infrastructure changes:

  - Export cacheline routines (Jiri Olsa)

  - Remove strbuf_{remove,splice}(), dead code (Arnaldo Carvalho de Melo)

Fixes:

  - Sort key fixes: Alignment for srcline, file, trace; fix
    segfault for dynamic, trace events related sort keys (Namyung Kim)

Build fixes:

  - Remove duplicate typedef config_term_func_t definition,
    fixing the build on older systems (Arnaldo Carvalho de Melo)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>

1 files changed, 51 insertions, 0 deletions

diff --git a/tools/perf/util/mem-events.c b/tools/perf/util/mem-events.c
new file mode 100644
index 0000000..b1507c0
--- /dev/null
+++ b/tools/perf/util/mem-events.c
@@ -0,0 +1,51 @@
+#include <stddef.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include "mem-events.h"
+#include "debug.h"
+
+#define E(t, n) { .tag = t, .name = n }
+
+struct perf_mem_event perf_mem_events[PERF_MEM_EVENTS__MAX] = {
+	E("ldlat-loads",	"cpu/mem-loads,ldlat=30/P"),
+	E("ldlat-stores",	"cpu/mem-stores/P"),
+};
+
+#undef E
+
+int perf_mem_events__parse(const char *str)
+{
+	char *tok, *saveptr = NULL;
+	bool found = false;
+	char *buf;
+	int j;
+
+	/* We need buffer that we know we can write to. */
+	buf = malloc(strlen(str) + 1);
+	if (!buf)
+		return -ENOMEM;
+
+	strcpy(buf, str);
+
+	tok = strtok_r((char *)buf, ",", &saveptr);
+
+	while (tok) {
+		for (j = 0; j < PERF_MEM_EVENTS__MAX; j++) {
+			struct perf_mem_event *e = &perf_mem_events[j];
+
+			if (strstr(e->tag, tok))
+				e->record = found = true;
+		}
+
+		tok = strtok_r(NULL, ",", &saveptr);
+	}
+
+	free(buf);
+
+	if (found)
+		return 0;
+
+	pr_err("failed: event '%s' not found, use '-e list' to get list of available events\n", str);
+	return -1;
+}