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-rw-r--r--tools/perf/tests/Build4
-rw-r--r--tools/perf/tests/bpf-script-example.c44
-rw-r--r--tools/perf/tests/builtin-test.c76
-rw-r--r--tools/perf/tests/code-reading.c76
-rw-r--r--tools/perf/tests/dwarf-unwind.c4
-rw-r--r--tools/perf/tests/evsel-tp-sched.c10
-rw-r--r--tools/perf/tests/hists_filter.c55
-rw-r--r--tools/perf/tests/make4
-rw-r--r--tools/perf/tests/mmap-basic.c3
-rw-r--r--tools/perf/tests/openat-syscall-all-cpus.c13
-rw-r--r--tools/perf/tests/openat-syscall-tp-fields.c5
-rw-r--r--tools/perf/tests/openat-syscall.c13
-rw-r--r--tools/perf/tests/parse-events.c49
-rw-r--r--tools/perf/tests/perf-time-to-tsc.c162
-rw-r--r--tools/perf/tests/rdpmc.c177
-rw-r--r--tools/perf/tests/tests.h10
-rw-r--r--tools/perf/tests/topology.c115
-rw-r--r--tools/perf/tests/vmlinux-kallsyms.c4
18 files changed, 376 insertions, 448 deletions
diff --git a/tools/perf/tests/Build b/tools/perf/tests/Build
index c1518bdd0f1b..50de2253cff6 100644
--- a/tools/perf/tests/Build
+++ b/tools/perf/tests/Build
@@ -8,7 +8,6 @@ perf-y += openat-syscall-all-cpus.o
perf-y += openat-syscall-tp-fields.o
perf-y += mmap-basic.o
perf-y += perf-record.o
-perf-y += rdpmc.o
perf-y += evsel-roundtrip-name.o
perf-y += evsel-tp-sched.o
perf-y += fdarray.o
@@ -33,8 +32,7 @@ perf-y += parse-no-sample-id-all.o
perf-y += kmod-path.o
perf-y += thread-map.o
perf-y += llvm.o
-
-perf-$(CONFIG_X86) += perf-time-to-tsc.o
+perf-y += topology.o
ifeq ($(ARCH),$(filter $(ARCH),x86 arm arm64))
perf-$(CONFIG_DWARF_UNWIND) += dwarf-unwind.o
diff --git a/tools/perf/tests/bpf-script-example.c b/tools/perf/tests/bpf-script-example.c
new file mode 100644
index 000000000000..410a70b93b93
--- /dev/null
+++ b/tools/perf/tests/bpf-script-example.c
@@ -0,0 +1,44 @@
+#ifndef LINUX_VERSION_CODE
+# error Need LINUX_VERSION_CODE
+# error Example: for 4.2 kernel, put 'clang-opt="-DLINUX_VERSION_CODE=0x40200" into llvm section of ~/.perfconfig'
+#endif
+#define BPF_ANY 0
+#define BPF_MAP_TYPE_ARRAY 2
+#define BPF_FUNC_map_lookup_elem 1
+#define BPF_FUNC_map_update_elem 2
+
+static void *(*bpf_map_lookup_elem)(void *map, void *key) =
+ (void *) BPF_FUNC_map_lookup_elem;
+static void *(*bpf_map_update_elem)(void *map, void *key, void *value, int flags) =
+ (void *) BPF_FUNC_map_update_elem;
+
+struct bpf_map_def {
+ unsigned int type;
+ unsigned int key_size;
+ unsigned int value_size;
+ unsigned int max_entries;
+};
+
+#define SEC(NAME) __attribute__((section(NAME), used))
+struct bpf_map_def SEC("maps") flip_table = {
+ .type = BPF_MAP_TYPE_ARRAY,
+ .key_size = sizeof(int),
+ .value_size = sizeof(int),
+ .max_entries = 1,
+};
+
+SEC("func=sys_epoll_pwait")
+int bpf_func__sys_epoll_pwait(void *ctx)
+{
+ int ind =0;
+ int *flag = bpf_map_lookup_elem(&flip_table, &ind);
+ int new_flag;
+ if (!flag)
+ return 0;
+ /* flip flag and store back */
+ new_flag = !*flag;
+ bpf_map_update_elem(&flip_table, &ind, &new_flag, BPF_ANY);
+ return new_flag;
+}
+char _license[] SEC("license") = "GPL";
+int _version SEC("version") = LINUX_VERSION_CODE;
diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c
index 136cd934be66..66f72d3d6677 100644
--- a/tools/perf/tests/builtin-test.c
+++ b/tools/perf/tests/builtin-test.c
@@ -14,10 +14,13 @@
#include "parse-options.h"
#include "symbol.h"
-static struct test {
- const char *desc;
- int (*func)(void);
-} tests[] = {
+struct test __weak arch_tests[] = {
+ {
+ .func = NULL,
+ },
+};
+
+static struct test generic_tests[] = {
{
.desc = "vmlinux symtab matches kallsyms",
.func = test__vmlinux_matches_kallsyms,
@@ -38,12 +41,6 @@ static struct test {
.desc = "parse events tests",
.func = test__parse_events,
},
-#if defined(__x86_64__) || defined(__i386__)
- {
- .desc = "x86 rdpmc test",
- .func = test__rdpmc,
- },
-#endif
{
.desc = "Validate PERF_RECORD_* events & perf_sample fields",
.func = test__PERF_RECORD,
@@ -104,12 +101,6 @@ static struct test {
.desc = "Test software clock events have valid period values",
.func = test__sw_clock_freq,
},
-#if defined(__x86_64__) || defined(__i386__)
- {
- .desc = "Test converting perf time to TSC",
- .func = test__perf_time_to_tsc,
- },
-#endif
{
.desc = "Test object code reading",
.func = test__code_reading,
@@ -126,14 +117,6 @@ static struct test {
.desc = "Test parsing with no sample_id_all bit set",
.func = test__parse_no_sample_id_all,
},
-#if defined(__x86_64__) || defined(__i386__) || defined(__arm__) || defined(__aarch64__)
-#ifdef HAVE_DWARF_UNWIND_SUPPORT
- {
- .desc = "Test dwarf unwind",
- .func = test__dwarf_unwind,
- },
-#endif
-#endif
{
.desc = "Test filtering hist entries",
.func = test__hists_filter,
@@ -179,11 +162,20 @@ static struct test {
.func = test__llvm,
},
{
+ .desc = "Test topology in session",
+ .func = test_session_topology,
+ },
+ {
.func = NULL,
},
};
-static bool perf_test__matches(int curr, int argc, const char *argv[])
+static struct test *tests[] = {
+ generic_tests,
+ arch_tests,
+};
+
+static bool perf_test__matches(struct test *test, int curr, int argc, const char *argv[])
{
int i;
@@ -200,7 +192,7 @@ static bool perf_test__matches(int curr, int argc, const char *argv[])
continue;
}
- if (strstr(tests[curr].desc, argv[i]))
+ if (strstr(test->desc, argv[i]))
return true;
}
@@ -237,27 +229,31 @@ static int run_test(struct test *test)
return err;
}
+#define for_each_test(j, t) \
+ for (j = 0; j < ARRAY_SIZE(tests); j++) \
+ for (t = &tests[j][0]; t->func; t++)
+
static int __cmd_test(int argc, const char *argv[], struct intlist *skiplist)
{
+ struct test *t;
+ unsigned int j;
int i = 0;
int width = 0;
- while (tests[i].func) {
- int len = strlen(tests[i].desc);
+ for_each_test(j, t) {
+ int len = strlen(t->desc);
if (width < len)
width = len;
- ++i;
}
- i = 0;
- while (tests[i].func) {
+ for_each_test(j, t) {
int curr = i++, err;
- if (!perf_test__matches(curr, argc, argv))
+ if (!perf_test__matches(t, curr, argc, argv))
continue;
- pr_info("%2d: %-*s:", i, width, tests[curr].desc);
+ pr_info("%2d: %-*s:", i, width, t->desc);
if (intlist__find(skiplist, i)) {
color_fprintf(stderr, PERF_COLOR_YELLOW, " Skip (user override)\n");
@@ -265,8 +261,8 @@ static int __cmd_test(int argc, const char *argv[], struct intlist *skiplist)
}
pr_debug("\n--- start ---\n");
- err = run_test(&tests[curr]);
- pr_debug("---- end ----\n%s:", tests[curr].desc);
+ err = run_test(t);
+ pr_debug("---- end ----\n%s:", t->desc);
switch (err) {
case TEST_OK:
@@ -287,15 +283,15 @@ static int __cmd_test(int argc, const char *argv[], struct intlist *skiplist)
static int perf_test__list(int argc, const char **argv)
{
+ unsigned int j;
+ struct test *t;
int i = 0;
- while (tests[i].func) {
- int curr = i++;
-
- if (argc > 1 && !strstr(tests[curr].desc, argv[1]))
+ for_each_test(j, t) {
+ if (argc > 1 && !strstr(t->desc, argv[1]))
continue;
- pr_info("%2d: %s\n", i, tests[curr].desc);
+ pr_info("%2d: %s\n", ++i, t->desc);
}
return 0;
diff --git a/tools/perf/tests/code-reading.c b/tools/perf/tests/code-reading.c
index 39c784a100a9..49b1959dda41 100644
--- a/tools/perf/tests/code-reading.c
+++ b/tools/perf/tests/code-reading.c
@@ -33,20 +33,20 @@ static unsigned int hex(char c)
return c - 'A' + 10;
}
-static void read_objdump_line(const char *line, size_t line_len, void **buf,
- size_t *len)
+static size_t read_objdump_line(const char *line, size_t line_len, void *buf,
+ size_t len)
{
const char *p;
- size_t i;
+ size_t i, j = 0;
/* Skip to a colon */
p = strchr(line, ':');
if (!p)
- return;
+ return 0;
i = p + 1 - line;
/* Read bytes */
- while (*len) {
+ while (j < len) {
char c1, c2;
/* Skip spaces */
@@ -65,20 +65,26 @@ static void read_objdump_line(const char *line, size_t line_len, void **buf,
if (i < line_len && line[i] && !isspace(line[i]))
break;
/* Store byte */
- *(unsigned char *)*buf = (hex(c1) << 4) | hex(c2);
- *buf += 1;
- *len -= 1;
+ *(unsigned char *)buf = (hex(c1) << 4) | hex(c2);
+ buf += 1;
+ j++;
}
+ /* return number of successfully read bytes */
+ return j;
}
-static int read_objdump_output(FILE *f, void **buf, size_t *len)
+static int read_objdump_output(FILE *f, void *buf, size_t *len, u64 start_addr)
{
char *line = NULL;
- size_t line_len;
+ size_t line_len, off_last = 0;
ssize_t ret;
int err = 0;
+ u64 addr, last_addr = start_addr;
+
+ while (off_last < *len) {
+ size_t off, read_bytes, written_bytes;
+ unsigned char tmp[BUFSZ];
- while (1) {
ret = getline(&line, &line_len, f);
if (feof(f))
break;
@@ -87,9 +93,33 @@ static int read_objdump_output(FILE *f, void **buf, size_t *len)
err = -1;
break;
}
- read_objdump_line(line, ret, buf, len);
+
+ /* read objdump data into temporary buffer */
+ read_bytes = read_objdump_line(line, ret, tmp, sizeof(tmp));
+ if (!read_bytes)
+ continue;
+
+ if (sscanf(line, "%"PRIx64, &addr) != 1)
+ continue;
+ if (addr < last_addr) {
+ pr_debug("addr going backwards, read beyond section?\n");
+ break;
+ }
+ last_addr = addr;
+
+ /* copy it from temporary buffer to 'buf' according
+ * to address on current objdump line */
+ off = addr - start_addr;
+ if (off >= *len)
+ break;
+ written_bytes = MIN(read_bytes, *len - off);
+ memcpy(buf + off, tmp, written_bytes);
+ off_last = off + written_bytes;
}
+ /* len returns number of bytes that could not be read */
+ *len -= off_last;
+
free(line);
return err;
@@ -103,7 +133,7 @@ static int read_via_objdump(const char *filename, u64 addr, void *buf,
FILE *f;
int ret;
- fmt = "%s -d --start-address=0x%"PRIx64" --stop-address=0x%"PRIx64" %s";
+ fmt = "%s -z -d --start-address=0x%"PRIx64" --stop-address=0x%"PRIx64" %s";
ret = snprintf(cmd, sizeof(cmd), fmt, "objdump", addr, addr + len,
filename);
if (ret <= 0 || (size_t)ret >= sizeof(cmd))
@@ -120,7 +150,7 @@ static int read_via_objdump(const char *filename, u64 addr, void *buf,
return -1;
}
- ret = read_objdump_output(f, &buf, &len);
+ ret = read_objdump_output(f, buf, &len, addr);
if (len) {
pr_debug("objdump read too few bytes\n");
if (!ret)
@@ -132,6 +162,18 @@ static int read_via_objdump(const char *filename, u64 addr, void *buf,
return ret;
}
+static void dump_buf(unsigned char *buf, size_t len)
+{
+ size_t i;
+
+ for (i = 0; i < len; i++) {
+ pr_debug("0x%02x ", buf[i]);
+ if (i % 16 == 15)
+ pr_debug("\n");
+ }
+ pr_debug("\n");
+}
+
static int read_object_code(u64 addr, size_t len, u8 cpumode,
struct thread *thread, struct state *state)
{
@@ -234,6 +276,10 @@ static int read_object_code(u64 addr, size_t len, u8 cpumode,
/* The results should be identical */
if (memcmp(buf1, buf2, len)) {
pr_debug("Bytes read differ from those read by objdump\n");
+ pr_debug("buf1 (dso):\n");
+ dump_buf(buf1, len);
+ pr_debug("buf2 (objdump):\n");
+ dump_buf(buf2, len);
return -1;
}
pr_debug("Bytes read match those read by objdump\n");
@@ -427,7 +473,7 @@ static int do_test_code_reading(bool try_kcore)
symbol_conf.kallsyms_name = "/proc/kallsyms";
/* Load kernel map */
- map = machine->vmlinux_maps[MAP__FUNCTION];
+ map = machine__kernel_map(machine);
ret = map__load(map, NULL);
if (ret < 0) {
pr_debug("map__load failed\n");
diff --git a/tools/perf/tests/dwarf-unwind.c b/tools/perf/tests/dwarf-unwind.c
index 40b36c462427..07221793a3ac 100644
--- a/tools/perf/tests/dwarf-unwind.c
+++ b/tools/perf/tests/dwarf-unwind.c
@@ -11,6 +11,10 @@
#include "thread.h"
#include "callchain.h"
+#if defined (__x86_64__) || defined (__i386__)
+#include "arch-tests.h"
+#endif
+
/* For bsearch. We try to unwind functions in shared object. */
#include <stdlib.h>
diff --git a/tools/perf/tests/evsel-tp-sched.c b/tools/perf/tests/evsel-tp-sched.c
index 52162425c969..790e413d9a1f 100644
--- a/tools/perf/tests/evsel-tp-sched.c
+++ b/tools/perf/tests/evsel-tp-sched.c
@@ -1,3 +1,4 @@
+#include <linux/err.h>
#include <traceevent/event-parse.h>
#include "evsel.h"
#include "tests.h"
@@ -36,8 +37,8 @@ int test__perf_evsel__tp_sched_test(void)
struct perf_evsel *evsel = perf_evsel__newtp("sched", "sched_switch");
int ret = 0;
- if (evsel == NULL) {
- pr_debug("perf_evsel__new\n");
+ if (IS_ERR(evsel)) {
+ pr_debug("perf_evsel__newtp failed with %ld\n", PTR_ERR(evsel));
return -1;
}
@@ -66,6 +67,11 @@ int test__perf_evsel__tp_sched_test(void)
evsel = perf_evsel__newtp("sched", "sched_wakeup");
+ if (IS_ERR(evsel)) {
+ pr_debug("perf_evsel__newtp failed with %ld\n", PTR_ERR(evsel));
+ return -1;
+ }
+
if (perf_evsel__test_field(evsel, "comm", 16, true))
ret = -1;
diff --git a/tools/perf/tests/hists_filter.c b/tools/perf/tests/hists_filter.c
index ce48775e6ada..818acf875dd0 100644
--- a/tools/perf/tests/hists_filter.c
+++ b/tools/perf/tests/hists_filter.c
@@ -16,30 +16,31 @@ struct sample {
struct thread *thread;
struct map *map;
struct symbol *sym;
+ int socket;
};
/* For the numbers, see hists_common.c */
static struct sample fake_samples[] = {
/* perf [kernel] schedule() */
- { .pid = FAKE_PID_PERF1, .ip = FAKE_IP_KERNEL_SCHEDULE, },
+ { .pid = FAKE_PID_PERF1, .ip = FAKE_IP_KERNEL_SCHEDULE, .socket = 0 },
/* perf [perf] main() */
- { .pid = FAKE_PID_PERF1, .ip = FAKE_IP_PERF_MAIN, },
+ { .pid = FAKE_PID_PERF1, .ip = FAKE_IP_PERF_MAIN, .socket = 0 },
/* perf [libc] malloc() */
- { .pid = FAKE_PID_PERF1, .ip = FAKE_IP_LIBC_MALLOC, },
+ { .pid = FAKE_PID_PERF1, .ip = FAKE_IP_LIBC_MALLOC, .socket = 0 },
/* perf [perf] main() */
- { .pid = FAKE_PID_PERF2, .ip = FAKE_IP_PERF_MAIN, }, /* will be merged */
+ { .pid = FAKE_PID_PERF2, .ip = FAKE_IP_PERF_MAIN, .socket = 0 }, /* will be merged */
/* perf [perf] cmd_record() */
- { .pid = FAKE_PID_PERF2, .ip = FAKE_IP_PERF_CMD_RECORD, },
+ { .pid = FAKE_PID_PERF2, .ip = FAKE_IP_PERF_CMD_RECORD, .socket = 1 },
/* perf [kernel] page_fault() */
- { .pid = FAKE_PID_PERF2, .ip = FAKE_IP_KERNEL_PAGE_FAULT, },
+ { .pid = FAKE_PID_PERF2, .ip = FAKE_IP_KERNEL_PAGE_FAULT, .socket = 1 },
/* bash [bash] main() */
- { .pid = FAKE_PID_BASH, .ip = FAKE_IP_BASH_MAIN, },
+ { .pid = FAKE_PID_BASH, .ip = FAKE_IP_BASH_MAIN, .socket = 2 },
/* bash [bash] xmalloc() */
- { .pid = FAKE_PID_BASH, .ip = FAKE_IP_BASH_XMALLOC, },
+ { .pid = FAKE_PID_BASH, .ip = FAKE_IP_BASH_XMALLOC, .socket = 2 },
/* bash [libc] malloc() */
- { .pid = FAKE_PID_BASH, .ip = FAKE_IP_LIBC_MALLOC, },
+ { .pid = FAKE_PID_BASH, .ip = FAKE_IP_LIBC_MALLOC, .socket = 3 },
/* bash [kernel] page_fault() */
- { .pid = FAKE_PID_BASH, .ip = FAKE_IP_KERNEL_PAGE_FAULT, },
+ { .pid = FAKE_PID_BASH, .ip = FAKE_IP_KERNEL_PAGE_FAULT, .socket = 3 },
};
static int add_hist_entries(struct perf_evlist *evlist,
@@ -83,6 +84,7 @@ static int add_hist_entries(struct perf_evlist *evlist,
&sample) < 0)
goto out;
+ al.socket = fake_samples[i].socket;
if (hist_entry_iter__add(&iter, &al,
PERF_MAX_STACK_DEPTH, NULL) < 0) {
addr_location__put(&al);
@@ -253,6 +255,39 @@ int test__hists_filter(void)
TEST_ASSERT_VAL("Unmatched total period for symbol filter",
hists->stats.total_non_filtered_period == 300);
+ /* remove symbol filter first */
+ hists->symbol_filter_str = NULL;
+ hists__filter_by_symbol(hists);
+
+ /* now applying socket filters */
+ hists->socket_filter = 2;
+ hists__filter_by_socket(hists);
+
+ if (verbose > 2) {
+ pr_info("Histogram for socket filters\n");
+ print_hists_out(hists);
+ }
+
+ /* normal stats should be invariant */
+ TEST_ASSERT_VAL("Invalid nr samples",
+ hists->stats.nr_events[PERF_RECORD_SAMPLE] == 10);
+ TEST_ASSERT_VAL("Invalid nr hist entries",
+ hists->nr_entries == 9);
+ TEST_ASSERT_VAL("Invalid total period",
+ hists->stats.total_period == 1000);
+
+ /* but filter stats are changed */
+ TEST_ASSERT_VAL("Unmatched nr samples for socket filter",
+ hists->stats.nr_non_filtered_samples == 2);
+ TEST_ASSERT_VAL("Unmatched nr hist entries for socket filter",
+ hists->nr_non_filtered_entries == 2);
+ TEST_ASSERT_VAL("Unmatched total period for socket filter",
+ hists->stats.total_non_filtered_period == 200);
+
+ /* remove socket filter first */
+ hists->socket_filter = -1;
+ hists__filter_by_socket(hists);
+
/* now applying all filters at once. */
hists->thread_filter = fake_samples[1].thread;
hists->dso_filter = fake_samples[1].map->dso;
diff --git a/tools/perf/tests/make b/tools/perf/tests/make
index ba31c4bd441d..2cbd0c6901e3 100644
--- a/tools/perf/tests/make
+++ b/tools/perf/tests/make
@@ -44,6 +44,7 @@ make_no_libnuma := NO_LIBNUMA=1
make_no_libaudit := NO_LIBAUDIT=1
make_no_libbionic := NO_LIBBIONIC=1
make_no_auxtrace := NO_AUXTRACE=1
+make_no_libbpf := NO_LIBBPF=1
make_tags := tags
make_cscope := cscope
make_help := help
@@ -66,7 +67,7 @@ make_static := LDFLAGS=-static
make_minimal := NO_LIBPERL=1 NO_LIBPYTHON=1 NO_NEWT=1 NO_GTK2=1
make_minimal += NO_DEMANGLE=1 NO_LIBELF=1 NO_LIBUNWIND=1 NO_BACKTRACE=1
make_minimal += NO_LIBNUMA=1 NO_LIBAUDIT=1 NO_LIBBIONIC=1
-make_minimal += NO_LIBDW_DWARF_UNWIND=1 NO_AUXTRACE=1
+make_minimal += NO_LIBDW_DWARF_UNWIND=1 NO_AUXTRACE=1 NO_LIBBPF=1
# $(run) contains all available tests
run := make_pure
@@ -94,6 +95,7 @@ run += make_no_libnuma
run += make_no_libaudit
run += make_no_libbionic
run += make_no_auxtrace
+run += make_no_libbpf
run += make_help
run += make_doc
run += make_perf_o
diff --git a/tools/perf/tests/mmap-basic.c b/tools/perf/tests/mmap-basic.c
index 666b67a4df9d..4495493c9431 100644
--- a/tools/perf/tests/mmap-basic.c
+++ b/tools/perf/tests/mmap-basic.c
@@ -3,6 +3,7 @@
#include "thread_map.h"
#include "cpumap.h"
#include "tests.h"
+#include <linux/err.h>
/*
* This test will generate random numbers of calls to some getpid syscalls,
@@ -65,7 +66,7 @@ int test__basic_mmap(void)
snprintf(name, sizeof(name), "sys_enter_%s", syscall_names[i]);
evsels[i] = perf_evsel__newtp("syscalls", name);
- if (evsels[i] == NULL) {
+ if (IS_ERR(evsels[i])) {
pr_debug("perf_evsel__new\n");
goto out_delete_evlist;
}
diff --git a/tools/perf/tests/openat-syscall-all-cpus.c b/tools/perf/tests/openat-syscall-all-cpus.c
index a572f87e9c8d..2006485a2859 100644
--- a/tools/perf/tests/openat-syscall-all-cpus.c
+++ b/tools/perf/tests/openat-syscall-all-cpus.c
@@ -1,3 +1,5 @@
+#include <api/fs/fs.h>
+#include <linux/err.h>
#include "evsel.h"
#include "tests.h"
#include "thread_map.h"
@@ -14,6 +16,7 @@ int test__openat_syscall_event_on_all_cpus(void)
cpu_set_t cpu_set;
struct thread_map *threads = thread_map__new(-1, getpid(), UINT_MAX);
char sbuf[STRERR_BUFSIZE];
+ char errbuf[BUFSIZ];
if (threads == NULL) {
pr_debug("thread_map__new\n");
@@ -29,13 +32,9 @@ int test__openat_syscall_event_on_all_cpus(void)
CPU_ZERO(&cpu_set);
evsel = perf_evsel__newtp("syscalls", "sys_enter_openat");
- if (evsel == NULL) {
- if (tracefs_configured())
- pr_debug("is tracefs mounted on /sys/kernel/tracing?\n");
- else if (debugfs_configured())
- pr_debug("is debugfs mounted on /sys/kernel/debug?\n");
- else
- pr_debug("Neither tracefs or debugfs is enabled in this kernel\n");
+ if (IS_ERR(evsel)) {
+ tracing_path__strerror_open_tp(errno, errbuf, sizeof(errbuf), "syscalls", "sys_enter_openat");
+ pr_debug("%s\n", errbuf);
goto out_thread_map_delete;
}
diff --git a/tools/perf/tests/openat-syscall-tp-fields.c b/tools/perf/tests/openat-syscall-tp-fields.c
index 01a19626c846..5e811cd8f1c3 100644
--- a/tools/perf/tests/openat-syscall-tp-fields.c
+++ b/tools/perf/tests/openat-syscall-tp-fields.c
@@ -1,3 +1,4 @@
+#include <linux/err.h>
#include "perf.h"
#include "evlist.h"
#include "evsel.h"
@@ -30,7 +31,7 @@ int test__syscall_openat_tp_fields(void)
}
evsel = perf_evsel__newtp("syscalls", "sys_enter_openat");
- if (evsel == NULL) {
+ if (IS_ERR(evsel)) {
pr_debug("%s: perf_evsel__newtp\n", __func__);
goto out_delete_evlist;
}
@@ -88,7 +89,7 @@ int test__syscall_openat_tp_fields(void)
err = perf_evsel__parse_sample(evsel, event, &sample);
if (err) {
- pr_err("Can't parse sample, err = %d\n", err);
+ pr_debug("Can't parse sample, err = %d\n", err);
goto out_delete_evlist;
}
diff --git a/tools/perf/tests/openat-syscall.c b/tools/perf/tests/openat-syscall.c
index c9a37bc6b33a..033b54797b8a 100644
--- a/tools/perf/tests/openat-syscall.c
+++ b/tools/perf/tests/openat-syscall.c
@@ -1,3 +1,5 @@
+#include <api/fs/tracing_path.h>
+#include <linux/err.h>
#include "thread_map.h"
#include "evsel.h"
#include "debug.h"
@@ -10,6 +12,7 @@ int test__openat_syscall_event(void)
unsigned int nr_openat_calls = 111, i;
struct thread_map *threads = thread_map__new(-1, getpid(), UINT_MAX);
char sbuf[STRERR_BUFSIZE];
+ char errbuf[BUFSIZ];
if (threads == NULL) {
pr_debug("thread_map__new\n");
@@ -17,13 +20,9 @@ int test__openat_syscall_event(void)
}
evsel = perf_evsel__newtp("syscalls", "sys_enter_openat");
- if (evsel == NULL) {
- if (tracefs_configured())
- pr_debug("is tracefs mounted on /sys/kernel/tracing?\n");
- else if (debugfs_configured())
- pr_debug("is debugfs mounted on /sys/kernel/debug?\n");
- else
- pr_debug("Neither tracefs or debugfs is enabled in this kernel\n");
+ if (IS_ERR(evsel)) {
+ tracing_path__strerror_open_tp(errno, errbuf, sizeof(errbuf), "syscalls", "sys_enter_openat");
+ pr_debug("%s\n", errbuf);
goto out_thread_map_delete;
}
diff --git a/tools/perf/tests/parse-events.c b/tools/perf/tests/parse-events.c
index 9b6b2b6324a1..636d7b42d844 100644
--- a/tools/perf/tests/parse-events.c
+++ b/tools/perf/tests/parse-events.c
@@ -3,11 +3,11 @@
#include "evsel.h"
#include "evlist.h"
#include <api/fs/fs.h>
-#include <api/fs/tracefs.h>
-#include <api/fs/debugfs.h>
#include "tests.h"
#include "debug.h"
+#include "util.h"
#include <linux/hw_breakpoint.h>
+#include <api/fs/fs.h>
#define PERF_TP_SAMPLE_TYPE (PERF_SAMPLE_RAW | PERF_SAMPLE_TIME | \
PERF_SAMPLE_CPU | PERF_SAMPLE_PERIOD)
@@ -1260,25 +1260,24 @@ test__checkevent_breakpoint_len_rw_modifier(struct perf_evlist *evlist)
return test__checkevent_breakpoint_rw(evlist);
}
+static int test__checkevent_precise_max_modifier(struct perf_evlist *evlist)
+{
+ struct perf_evsel *evsel = perf_evlist__first(evlist);
+
+ TEST_ASSERT_VAL("wrong number of entries", 2 == evlist->nr_entries);
+ TEST_ASSERT_VAL("wrong type", PERF_TYPE_SOFTWARE == evsel->attr.type);
+ TEST_ASSERT_VAL("wrong config",
+ PERF_COUNT_SW_TASK_CLOCK == evsel->attr.config);
+ return 0;
+}
+
static int count_tracepoints(void)
{
- char events_path[PATH_MAX];
struct dirent *events_ent;
- const char *mountpoint;
DIR *events_dir;
int cnt = 0;
- mountpoint = tracefs_find_mountpoint();
- if (mountpoint) {
- scnprintf(events_path, PATH_MAX, "%s/events",
- mountpoint);
- } else {
- mountpoint = debugfs_find_mountpoint();
- scnprintf(events_path, PATH_MAX, "%s/tracing/events",
- mountpoint);
- }
-
- events_dir = opendir(events_path);
+ events_dir = opendir(tracing_events_path);
TEST_ASSERT_VAL("Can't open events dir", events_dir);
@@ -1295,7 +1294,7 @@ static int count_tracepoints(void)
continue;
scnprintf(sys_path, PATH_MAX, "%s/%s",
- events_path, events_ent->d_name);
+ tracing_events_path, events_ent->d_name);
sys_dir = opendir(sys_path);
TEST_ASSERT_VAL("Can't open sys dir", sys_dir);
@@ -1575,6 +1574,11 @@ static struct evlist_test test__events[] = {
.check = test__checkevent_exclude_idle_modifier_1,
.id = 46,
},
+ {
+ .name = "task-clock:P,cycles",
+ .check = test__checkevent_precise_max_modifier,
+ .id = 47,
+ },
};
static struct evlist_test test__events_pmu[] = {
@@ -1750,6 +1754,17 @@ static int test_pmu_events(void)
return ret;
}
+static void debug_warn(const char *warn, va_list params)
+{
+ char msg[1024];
+
+ if (!verbose)
+ return;
+
+ vsnprintf(msg, sizeof(msg), warn, params);
+ fprintf(stderr, " Warning: %s\n", msg);
+}
+
int test__parse_events(void)
{
int ret1, ret2 = 0;
@@ -1761,6 +1776,8 @@ do { \
ret2 = ret1; \
} while (0)
+ set_warning_routine(debug_warn);
+
TEST_EVENTS(test__events);
if (test_pmu())
diff --git a/tools/perf/tests/perf-time-to-tsc.c b/tools/perf/tests/perf-time-to-tsc.c
deleted file mode 100644
index 5f49484f1abc..000000000000
--- a/tools/perf/tests/perf-time-to-tsc.c
+++ /dev/null
@@ -1,162 +0,0 @@
-#include <stdio.h>
-#include <unistd.h>
-#include <linux/types.h>
-#include <sys/prctl.h>
-
-#include "parse-events.h"
-#include "evlist.h"
-#include "evsel.h"
-#include "thread_map.h"
-#include "cpumap.h"
-#include "tsc.h"
-#include "tests.h"
-
-#define CHECK__(x) { \
- while ((x) < 0) { \
- pr_debug(#x " failed!\n"); \
- goto out_err; \
- } \
-}
-
-#define CHECK_NOT_NULL__(x) { \
- while ((x) == NULL) { \
- pr_debug(#x " failed!\n"); \
- goto out_err; \
- } \
-}
-
-/**
- * test__perf_time_to_tsc - test converting perf time to TSC.
- *
- * This function implements a test that checks that the conversion of perf time
- * to and from TSC is consistent with the order of events. If the test passes
- * %0 is returned, otherwise %-1 is returned. If TSC conversion is not
- * supported then then the test passes but " (not supported)" is printed.
- */
-int test__perf_time_to_tsc(void)
-{
- struct record_opts opts = {
- .mmap_pages = UINT_MAX,
- .user_freq = UINT_MAX,
- .user_interval = ULLONG_MAX,
- .freq = 4000,
- .target = {
- .uses_mmap = true,
- },
- .sample_time = true,
- };
- struct thread_map *threads = NULL;
- struct cpu_map *cpus = NULL;
- struct perf_evlist *evlist = NULL;
- struct perf_evsel *evsel = NULL;
- int err = -1, ret, i;
- const char *comm1, *comm2;
- struct perf_tsc_conversion tc;
- struct perf_event_mmap_page *pc;
- union perf_event *event;
- u64 test_tsc, comm1_tsc, comm2_tsc;
- u64 test_time, comm1_time = 0, comm2_time = 0;
-
- threads = thread_map__new(-1, getpid(), UINT_MAX);
- CHECK_NOT_NULL__(threads);
-
- cpus = cpu_map__new(NULL);
- CHECK_NOT_NULL__(cpus);
-
- evlist = perf_evlist__new();
- CHECK_NOT_NULL__(evlist);
-
- perf_evlist__set_maps(evlist, cpus, threads);
-
- CHECK__(parse_events(evlist, "cycles:u", NULL));
-
- perf_evlist__config(evlist, &opts);
-
- evsel = perf_evlist__first(evlist);
-
- evsel->attr.comm = 1;
- evsel->attr.disabled = 1;
- evsel->attr.enable_on_exec = 0;
-
- CHECK__(perf_evlist__open(evlist));
-
- CHECK__(perf_evlist__mmap(evlist, UINT_MAX, false));
-
- pc = evlist->mmap[0].base;
- ret = perf_read_tsc_conversion(pc, &tc);
- if (ret) {
- if (ret == -EOPNOTSUPP) {
- fprintf(stderr, " (not supported)");
- return 0;
- }
- goto out_err;
- }
-
- perf_evlist__enable(evlist);
-
- comm1 = "Test COMM 1";
- CHECK__(prctl(PR_SET_NAME, (unsigned long)comm1, 0, 0, 0));
-
- test_tsc = rdtsc();
-
- comm2 = "Test COMM 2";
- CHECK__(prctl(PR_SET_NAME, (unsigned long)comm2, 0, 0, 0));
-
- perf_evlist__disable(evlist);
-
- for (i = 0; i < evlist->nr_mmaps; i++) {
- while ((event = perf_evlist__mmap_read(evlist, i)) != NULL) {
- struct perf_sample sample;
-
- if (event->header.type != PERF_RECORD_COMM ||
- (pid_t)event->comm.pid != getpid() ||
- (pid_t)event->comm.tid != getpid())
- goto next_event;
-
- if (strcmp(event->comm.comm, comm1) == 0) {
- CHECK__(perf_evsel__parse_sample(evsel, event,
- &sample));
- comm1_time = sample.time;
- }
- if (strcmp(event->comm.comm, comm2) == 0) {
- CHECK__(perf_evsel__parse_sample(evsel, event,
- &sample));
- comm2_time = sample.time;
- }
-next_event:
- perf_evlist__mmap_consume(evlist, i);
- }
- }
-
- if (!comm1_time || !comm2_time)
- goto out_err;
-
- test_time = tsc_to_perf_time(test_tsc, &tc);
- comm1_tsc = perf_time_to_tsc(comm1_time, &tc);
- comm2_tsc = perf_time_to_tsc(comm2_time, &tc);
-
- pr_debug("1st event perf time %"PRIu64" tsc %"PRIu64"\n",
- comm1_time, comm1_tsc);
- pr_debug("rdtsc time %"PRIu64" tsc %"PRIu64"\n",
- test_time, test_tsc);
- pr_debug("2nd event perf time %"PRIu64" tsc %"PRIu64"\n",
- comm2_time, comm2_tsc);
-
- if (test_time <= comm1_time ||
- test_time >= comm2_time)
- goto out_err;
-
- if (test_tsc <= comm1_tsc ||
- test_tsc >= comm2_tsc)
- goto out_err;
-
- err = 0;
-
-out_err:
- if (evlist) {
- perf_evlist__disable(evlist);
- perf_evlist__delete(evlist);
- }
-
- return err;
-}
diff --git a/tools/perf/tests/rdpmc.c b/tools/perf/tests/rdpmc.c
deleted file mode 100644
index d31f2c4d9f64..000000000000
--- a/tools/perf/tests/rdpmc.c
+++ /dev/null
@@ -1,177 +0,0 @@
-#include <unistd.h>
-#include <stdlib.h>
-#include <signal.h>
-#include <sys/mman.h>
-#include <linux/types.h>
-#include "perf.h"
-#include "debug.h"
-#include "tests.h"
-#include "cloexec.h"
-
-#if defined(__x86_64__) || defined(__i386__)
-
-static u64 rdpmc(unsigned int counter)
-{
- unsigned int low, high;
-
- asm volatile("rdpmc" : "=a" (low), "=d" (high) : "c" (counter));
-
- return low | ((u64)high) << 32;
-}
-
-static u64 rdtsc(void)
-{
- unsigned int low, high;
-
- asm volatile("rdtsc" : "=a" (low), "=d" (high));
-
- return low | ((u64)high) << 32;
-}
-
-static u64 mmap_read_self(void *addr)
-{
- struct perf_event_mmap_page *pc = addr;
- u32 seq, idx, time_mult = 0, time_shift = 0;
- u64 count, cyc = 0, time_offset = 0, enabled, running, delta;
-
- do {
- seq = pc->lock;
- barrier();
-
- enabled = pc->time_enabled;
- running = pc->time_running;
-
- if (enabled != running) {
- cyc = rdtsc();
- time_mult = pc->time_mult;
- time_shift = pc->time_shift;
- time_offset = pc->time_offset;
- }
-
- idx = pc->index;
- count = pc->offset;
- if (idx)
- count += rdpmc(idx - 1);
-
- barrier();
- } while (pc->lock != seq);
-
- if (enabled != running) {
- u64 quot, rem;
-
- quot = (cyc >> time_shift);
- rem = cyc & ((1 << time_shift) - 1);
- delta = time_offset + quot * time_mult +
- ((rem * time_mult) >> time_shift);
-
- enabled += delta;
- if (idx)
- running += delta;
-
- quot = count / running;
- rem = count % running;
- count = quot * enabled + (rem * enabled) / running;
- }
-
- return count;
-}
-
-/*
- * If the RDPMC instruction faults then signal this back to the test parent task:
- */
-static void segfault_handler(int sig __maybe_unused,
- siginfo_t *info __maybe_unused,
- void *uc __maybe_unused)
-{
- exit(-1);
-}
-
-static int __test__rdpmc(void)
-{
- volatile int tmp = 0;
- u64 i, loops = 1000;
- int n;
- int fd;
- void *addr;
- struct perf_event_attr attr = {
- .type = PERF_TYPE_HARDWARE,
- .config = PERF_COUNT_HW_INSTRUCTIONS,
- .exclude_kernel = 1,
- };
- u64 delta_sum = 0;
- struct sigaction sa;
- char sbuf[STRERR_BUFSIZE];
-
- sigfillset(&sa.sa_mask);
- sa.sa_sigaction = segfault_handler;
- sigaction(SIGSEGV, &sa, NULL);
-
- fd = sys_perf_event_open(&attr, 0, -1, -1,
- perf_event_open_cloexec_flag());
- if (fd < 0) {
- pr_err("Error: sys_perf_event_open() syscall returned "
- "with %d (%s)\n", fd,
- strerror_r(errno, sbuf, sizeof(sbuf)));
- return -1;
- }
-
- addr = mmap(NULL, page_size, PROT_READ, MAP_SHARED, fd, 0);
- if (addr == (void *)(-1)) {
- pr_err("Error: mmap() syscall returned with (%s)\n",
- strerror_r(errno, sbuf, sizeof(sbuf)));
- goto out_close;
- }
-
- for (n = 0; n < 6; n++) {
- u64 stamp, now, delta;
-
- stamp = mmap_read_self(addr);
-
- for (i = 0; i < loops; i++)
- tmp++;
-
- now = mmap_read_self(addr);
- loops *= 10;
-
- delta = now - stamp;
- pr_debug("%14d: %14Lu\n", n, (long long)delta);
-
- delta_sum += delta;
- }
-
- munmap(addr, page_size);
- pr_debug(" ");
-out_close:
- close(fd);
-
- if (!delta_sum)
- return -1;
-
- return 0;
-}
-
-int test__rdpmc(void)
-{
- int status = 0;
- int wret = 0;
- int ret;
- int pid;
-
- pid = fork();
- if (pid < 0)
- return -1;
-
- if (!pid) {
- ret = __test__rdpmc();
-
- exit(ret);
- }
-
- wret = waitpid(pid, &status, 0);
- if (wret < 0 || status)
- return -1;
-
- return 0;
-}
-
-#endif
diff --git a/tools/perf/tests/tests.h b/tools/perf/tests/tests.h
index bf113a247987..c80486969f83 100644
--- a/tools/perf/tests/tests.h
+++ b/tools/perf/tests/tests.h
@@ -24,13 +24,17 @@ enum {
TEST_SKIP = -2,
};
+struct test {
+ const char *desc;
+ int (*func)(void);
+};
+
/* Tests */
int test__vmlinux_matches_kallsyms(void);
int test__openat_syscall_event(void);
int test__openat_syscall_event_on_all_cpus(void);
int test__basic_mmap(void);
int test__PERF_RECORD(void);
-int test__rdpmc(void);
int test__perf_evsel__roundtrip_name_test(void);
int test__perf_evsel__tp_sched_test(void);
int test__syscall_openat_tp_fields(void);
@@ -46,7 +50,6 @@ int test__bp_signal(void);
int test__bp_signal_overflow(void);
int test__task_exit(void);
int test__sw_clock_freq(void);
-int test__perf_time_to_tsc(void);
int test__code_reading(void);
int test__sample_parsing(void);
int test__keep_tracking(void);
@@ -63,8 +66,9 @@ int test__fdarray__add(void);
int test__kmod_path__parse(void);
int test__thread_map(void);
int test__llvm(void);
+int test_session_topology(void);
-#if defined(__x86_64__) || defined(__i386__) || defined(__arm__) || defined(__aarch64__)
+#if defined(__arm__) || defined(__aarch64__)
#ifdef HAVE_DWARF_UNWIND_SUPPORT
struct thread;
struct perf_sample;
diff --git a/tools/perf/tests/topology.c b/tools/perf/tests/topology.c
new file mode 100644
index 000000000000..f5bb096c3bd9
--- /dev/null
+++ b/tools/perf/tests/topology.c
@@ -0,0 +1,115 @@
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include "tests.h"
+#include "util.h"
+#include "session.h"
+#include "evlist.h"
+#include "debug.h"
+
+#define TEMPL "/tmp/perf-test-XXXXXX"
+#define DATA_SIZE 10
+
+static int get_temp(char *path)
+{
+ int fd;
+
+ strcpy(path, TEMPL);
+
+ fd = mkstemp(path);
+ if (fd < 0) {
+ perror("mkstemp failed");
+ return -1;
+ }
+
+ close(fd);
+ return 0;
+}
+
+static int session_write_header(char *path)
+{
+ struct perf_session *session;
+ struct perf_data_file file = {
+ .path = path,
+ .mode = PERF_DATA_MODE_WRITE,
+ };
+
+ session = perf_session__new(&file, false, NULL);
+ TEST_ASSERT_VAL("can't get session", session);
+
+ session->evlist = perf_evlist__new_default();
+ TEST_ASSERT_VAL("can't get evlist", session->evlist);
+
+ perf_header__set_feat(&session->header, HEADER_CPU_TOPOLOGY);
+ perf_header__set_feat(&session->header, HEADER_NRCPUS);
+
+ session->header.data_size += DATA_SIZE;
+
+ TEST_ASSERT_VAL("failed to write header",
+ !perf_session__write_header(session, session->evlist, file.fd, true));
+
+ perf_session__delete(session);
+
+ return 0;
+}
+
+static int check_cpu_topology(char *path, struct cpu_map *map)
+{
+ struct perf_session *session;
+ struct perf_data_file file = {
+ .path = path,
+ .mode = PERF_DATA_MODE_READ,
+ };
+ int i;
+
+ session = perf_session__new(&file, false, NULL);
+ TEST_ASSERT_VAL("can't get session", session);
+
+ for (i = 0; i < session->header.env.nr_cpus_online; i++) {
+ pr_debug("CPU %d, core %d, socket %d\n", i,
+ session->header.env.cpu[i].core_id,
+ session->header.env.cpu[i].socket_id);
+ }
+
+ for (i = 0; i < map->nr; i++) {
+ TEST_ASSERT_VAL("Core ID doesn't match",
+ (session->header.env.cpu[map->map[i]].core_id == (cpu_map__get_core(map, i, NULL) & 0xffff)));
+
+ TEST_ASSERT_VAL("Socket ID doesn't match",
+ (session->header.env.cpu[map->map[i]].socket_id == cpu_map__get_socket(map, i, NULL)));
+ }
+
+ perf_session__delete(session);
+
+ return 0;
+}
+
+int test_session_topology(void)
+{
+ char path[PATH_MAX];
+ struct cpu_map *map;
+ int ret = -1;
+
+ TEST_ASSERT_VAL("can't get templ file", !get_temp(path));
+
+ pr_debug("templ file: %s\n", path);
+
+ if (session_write_header(path))
+ goto free_path;
+
+ map = cpu_map__new(NULL);
+ if (map == NULL) {
+ pr_debug("failed to get system cpumap\n");
+ goto free_path;
+ }
+
+ if (check_cpu_topology(path, map))
+ goto free_map;
+ ret = 0;
+
+free_map:
+ cpu_map__put(map);
+free_path:
+ unlink(path);
+ return ret;
+}
diff --git a/tools/perf/tests/vmlinux-kallsyms.c b/tools/perf/tests/vmlinux-kallsyms.c
index b34c5fc829ae..d677e018e504 100644
--- a/tools/perf/tests/vmlinux-kallsyms.c
+++ b/tools/perf/tests/vmlinux-kallsyms.c
@@ -68,7 +68,7 @@ int test__vmlinux_matches_kallsyms(void)
* to see if the running kernel was relocated by checking if it has the
* same value in the vmlinux file we load.
*/
- kallsyms_map = machine__kernel_map(&kallsyms, type);
+ kallsyms_map = machine__kernel_map(&kallsyms);
/*
* Step 5:
@@ -80,7 +80,7 @@ int test__vmlinux_matches_kallsyms(void)
goto out;
}
- vmlinux_map = machine__kernel_map(&vmlinux, type);
+ vmlinux_map = machine__kernel_map(&vmlinux);
/*
* Step 6:
generated by cgit v1.2.3 (git 2.39.0) at 2025-01-12 22:41:28 +0300