Multiple files/programs in `tools/testing/selftests/bpf/prog_tests/` still
heavily use the `CHECK` macro, even when better `ASSERT_` alternatives are
available.
As it was already pointed out by Yonghong Song [1] in the bpf selftests the use
of the ASSERT_* series of macros is preferred over the CHECK macro.
This patchset replaces the usage of `CHECK(` macros to the equivalent `ASSERT_`
family of macros in the following prog_tests:
- bind_perm.c
- bpf_obj_id.c
- bpf_tcp_ca.c
- vmlinux.c
[1] https://lore.kernel.org/lkml/[email protected]
Yuran Pereira (4):
Replaces the usage of CHECK calls for ASSERTs in bpf_tcp_ca
Replaces the usage of CHECK calls for ASSERTs in bind_perm
Replaces the usage of CHECK calls for ASSERTs in bpf_obj_id
selftests/bpf: Replaces the usage of CHECK calls for ASSERTs in
vmlinux
.../selftests/bpf/prog_tests/bind_perm.c | 6 +-
.../selftests/bpf/prog_tests/bpf_obj_id.c | 204 +++++++-----------
.../selftests/bpf/prog_tests/bpf_tcp_ca.c | 48 ++---
.../selftests/bpf/prog_tests/vmlinux.c | 16 +-
4 files changed, 105 insertions(+), 169 deletions(-)
--
2.25.1
bpf_tcp_ca uses the `CHECK` calls even though the use of
ASSERT_ series of macros is preferred in the bpf selftests.
This patch replaces all `CHECK` calls for equivalent `ASSERT_`
macro calls.
Signed-off-by: Yuran Pereira <[email protected]>
---
.../selftests/bpf/prog_tests/bpf_tcp_ca.c | 48 +++++++++----------
1 file changed, 22 insertions(+), 26 deletions(-)
diff --git a/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c b/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c
index 4aabeaa525d4..9f5fb97ac0c5 100644
--- a/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c
+++ b/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c
@@ -20,15 +20,14 @@
static const unsigned int total_bytes = 10 * 1024 * 1024;
static int expected_stg = 0xeB9F;
-static int stop, duration;
+static int stop;
static int settcpca(int fd, const char *tcp_ca)
{
int err;
err = setsockopt(fd, IPPROTO_TCP, TCP_CONGESTION, tcp_ca, strlen(tcp_ca));
- if (CHECK(err == -1, "setsockopt(fd, TCP_CONGESTION)", "errno:%d\n",
- errno))
+ if (!ASSERT_NEQ(err, -1, "setsockopt"))
return -1;
return 0;
@@ -65,8 +64,7 @@ static void *server(void *arg)
bytes += nr_sent;
}
- CHECK(bytes != total_bytes, "send", "%zd != %u nr_sent:%zd errno:%d\n",
- bytes, total_bytes, nr_sent, errno);
+ ASSERT_EQ(bytes, total_bytes, "send");
done:
if (fd >= 0)
@@ -92,10 +90,11 @@ static void do_test(const char *tcp_ca, const struct bpf_map *sk_stg_map)
WRITE_ONCE(stop, 0);
lfd = socket(AF_INET6, SOCK_STREAM, 0);
- if (CHECK(lfd == -1, "socket", "errno:%d\n", errno))
+ if (!ASSERT_NEQ(lfd, -1, "socket"))
return;
+
fd = socket(AF_INET6, SOCK_STREAM, 0);
- if (CHECK(fd == -1, "socket", "errno:%d\n", errno)) {
+ if (!ASSERT_NEQ(fd, -1, "socket")) {
close(lfd);
return;
}
@@ -108,26 +107,27 @@ static void do_test(const char *tcp_ca, const struct bpf_map *sk_stg_map)
sa6.sin6_family = AF_INET6;
sa6.sin6_addr = in6addr_loopback;
err = bind(lfd, (struct sockaddr *)&sa6, addrlen);
- if (CHECK(err == -1, "bind", "errno:%d\n", errno))
+ if (!ASSERT_NEQ(err, -1, "bind"))
goto done;
+
err = getsockname(lfd, (struct sockaddr *)&sa6, &addrlen);
- if (CHECK(err == -1, "getsockname", "errno:%d\n", errno))
+ if (!ASSERT_NEQ(err, -1, "getsockname"))
goto done;
+
err = listen(lfd, 1);
- if (CHECK(err == -1, "listen", "errno:%d\n", errno))
+ if (!ASSERT_NEQ(err, -1, "listen"))
goto done;
if (sk_stg_map) {
err = bpf_map_update_elem(bpf_map__fd(sk_stg_map), &fd,
&expected_stg, BPF_NOEXIST);
- if (CHECK(err, "bpf_map_update_elem(sk_stg_map)",
- "err:%d errno:%d\n", err, errno))
+ if (!ASSERT_OK(err, "bpf_map_update_elem(sk_stg_map)"))
goto done;
}
/* connect to server */
err = connect(fd, (struct sockaddr *)&sa6, addrlen);
- if (CHECK(err == -1, "connect", "errno:%d\n", errno))
+ if (!ASSERT_NEQ(err, -1, "connect"))
goto done;
if (sk_stg_map) {
@@ -135,14 +135,13 @@ static void do_test(const char *tcp_ca, const struct bpf_map *sk_stg_map)
err = bpf_map_lookup_elem(bpf_map__fd(sk_stg_map), &fd,
&tmp_stg);
- if (CHECK(!err || errno != ENOENT,
- "bpf_map_lookup_elem(sk_stg_map)",
- "err:%d errno:%d\n", err, errno))
+ if (!ASSERT_NEQ(err, 0, "bpf_map_lookup_elem(sk_stg_map)") ||
+ !ASSERT_EQ(errno, ENOENT, "bpf_map_lookup_elem(sk_stg_map)"))
goto done;
}
err = pthread_create(&srv_thread, NULL, server, (void *)(long)lfd);
- if (CHECK(err != 0, "pthread_create", "err:%d errno:%d\n", err, errno))
+ if (!ASSERT_OK(err, "pthread_create"))
goto done;
/* recv total_bytes */
@@ -156,13 +155,12 @@ static void do_test(const char *tcp_ca, const struct bpf_map *sk_stg_map)
bytes += nr_recv;
}
- CHECK(bytes != total_bytes, "recv", "%zd != %u nr_recv:%zd errno:%d\n",
- bytes, total_bytes, nr_recv, errno);
+ ASSERT_EQ(bytes, total_bytes, "recv");
WRITE_ONCE(stop, 1);
pthread_join(srv_thread, &thread_ret);
- CHECK(IS_ERR(thread_ret), "pthread_join", "thread_ret:%ld",
- PTR_ERR(thread_ret));
+ ASSERT_OK_PTR(thread_ret, "pthread_join");
+
done:
close(lfd);
close(fd);
@@ -174,7 +172,7 @@ static void test_cubic(void)
struct bpf_link *link;
cubic_skel = bpf_cubic__open_and_load();
- if (CHECK(!cubic_skel, "bpf_cubic__open_and_load", "failed\n"))
+ if (!ASSERT_OK_PTR(cubic_skel, "bpf_cubic__open_and_load"))
return;
link = bpf_map__attach_struct_ops(cubic_skel->maps.cubic);
@@ -197,7 +195,7 @@ static void test_dctcp(void)
struct bpf_link *link;
dctcp_skel = bpf_dctcp__open_and_load();
- if (CHECK(!dctcp_skel, "bpf_dctcp__open_and_load", "failed\n"))
+ if (!ASSERT_OK_PTR(dctcp_skel, "bpf_dctcp__open_and_load"))
return;
link = bpf_map__attach_struct_ops(dctcp_skel->maps.dctcp);
@@ -207,9 +205,7 @@ static void test_dctcp(void)
}
do_test("bpf_dctcp", dctcp_skel->maps.sk_stg_map);
- CHECK(dctcp_skel->bss->stg_result != expected_stg,
- "Unexpected stg_result", "stg_result (%x) != expected_stg (%x)\n",
- dctcp_skel->bss->stg_result, expected_stg);
+ ASSERT_EQ(dctcp_skel->bss->stg_result, expected_stg, "stg_result");
bpf_link__destroy(link);
bpf_dctcp__destroy(dctcp_skel);
--
2.25.1
bind_perm uses the `CHECK` calls even though the use of
ASSERT_ series of macros is preferred in the bpf selftests.
This patch replaces all `CHECK` calls for equivalent `ASSERT_`
macro calls.
Signed-off-by: Yuran Pereira <[email protected]>
---
tools/testing/selftests/bpf/prog_tests/bind_perm.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/tools/testing/selftests/bpf/prog_tests/bind_perm.c b/tools/testing/selftests/bpf/prog_tests/bind_perm.c
index a1766a298bb7..f7cd129cb82b 100644
--- a/tools/testing/selftests/bpf/prog_tests/bind_perm.c
+++ b/tools/testing/selftests/bpf/prog_tests/bind_perm.c
@@ -9,8 +9,6 @@
#include "cap_helpers.h"
#include "bind_perm.skel.h"
-static int duration;
-
static int create_netns(void)
{
if (!ASSERT_OK(unshare(CLONE_NEWNET), "create netns"))
@@ -27,7 +25,7 @@ void try_bind(int family, int port, int expected_errno)
int fd = -1;
fd = socket(family, SOCK_STREAM, 0);
- if (CHECK(fd < 0, "fd", "errno %d", errno))
+ if (!ASSERT_GE(fd, 0, "socket"))
goto close_socket;
if (family == AF_INET) {
@@ -60,7 +58,7 @@ void test_bind_perm(void)
return;
cgroup_fd = test__join_cgroup("/bind_perm");
- if (CHECK(cgroup_fd < 0, "cg-join", "errno %d", errno))
+ if (!ASSERT_GE(cgroup_fd, 0, "test__join_cgroup"))
return;
skel = bind_perm__open_and_load();
--
2.25.1
bpf_obj_id uses the `CHECK` calls even though the use of
ASSERT_ series of macros is preferred in the bpf selftests.
This patch replaces all `CHECK` calls for equivalent `ASSERT_`
macro calls.
Signed-off-by: Yuran Pereira <[email protected]>
---
.../selftests/bpf/prog_tests/bpf_obj_id.c | 204 +++++++-----------
1 file changed, 73 insertions(+), 131 deletions(-)
diff --git a/tools/testing/selftests/bpf/prog_tests/bpf_obj_id.c b/tools/testing/selftests/bpf/prog_tests/bpf_obj_id.c
index 675b90b15280..986fb8429b22 100644
--- a/tools/testing/selftests/bpf/prog_tests/bpf_obj_id.c
+++ b/tools/testing/selftests/bpf/prog_tests/bpf_obj_id.c
@@ -25,7 +25,7 @@ void serial_test_bpf_obj_id(void)
*/
__u32 map_ids[nr_iters + 1];
char jited_insns[128], xlated_insns[128], zeros[128], tp_name[128];
- __u32 i, next_id, info_len, nr_id_found, duration = 0;
+ __u32 i, next_id, info_len, nr_id_found;
struct timespec real_time_ts, boot_time_ts;
int err = 0;
__u64 array_value;
@@ -33,16 +33,16 @@ void serial_test_bpf_obj_id(void)
time_t now, load_time;
err = bpf_prog_get_fd_by_id(0);
- CHECK(err >= 0 || errno != ENOENT,
- "get-fd-by-notexist-prog-id", "err %d errno %d\n", err, errno);
+ ASSERT_LT(err, 0, "bpf_prog_get_fd_by_id");
+ ASSERT_EQ(errno, ENOENT, "bpf_prog_get_fd_by_id");
err = bpf_map_get_fd_by_id(0);
- CHECK(err >= 0 || errno != ENOENT,
- "get-fd-by-notexist-map-id", "err %d errno %d\n", err, errno);
+ ASSERT_LT(err, 0, "bpf_map_get_fd_by_id");
+ ASSERT_EQ(errno, ENOENT, "bpf_map_get_fd_by_id");
err = bpf_link_get_fd_by_id(0);
- CHECK(err >= 0 || errno != ENOENT,
- "get-fd-by-notexist-link-id", "err %d errno %d\n", err, errno);
+ ASSERT_LT(err, 0, "bpf_map_get_fd_by_id");
+ ASSERT_EQ(errno, ENOENT, "bpf_map_get_fd_by_id");
/* Check bpf_map_get_info_by_fd() */
bzero(zeros, sizeof(zeros));
@@ -53,25 +53,26 @@ void serial_test_bpf_obj_id(void)
/* test_obj_id.o is a dumb prog. It should never fail
* to load.
*/
- if (CHECK_FAIL(err))
+ if (!ASSERT_OK(err, "bpf_prog_test_load"))
continue;
/* Insert a magic value to the map */
map_fds[i] = bpf_find_map(__func__, objs[i], "test_map_id");
- if (CHECK_FAIL(map_fds[i] < 0))
+ if (!ASSERT_GE(map_fds[i], 0, "bpf_find_map"))
goto done;
+
err = bpf_map_update_elem(map_fds[i], &array_key,
&array_magic_value, 0);
- if (CHECK_FAIL(err))
+ if (!ASSERT_OK(err, "bpf_map_update_elem"))
goto done;
- prog = bpf_object__find_program_by_name(objs[i],
- "test_obj_id");
- if (CHECK_FAIL(!prog))
+ prog = bpf_object__find_program_by_name(objs[i], "test_obj_id");
+ if (!ASSERT_OK_PTR(prog, "bpf_object__find_program_by_name"))
goto done;
+
links[i] = bpf_program__attach(prog);
err = libbpf_get_error(links[i]);
- if (CHECK(err, "prog_attach", "prog #%d, err %d\n", i, err)) {
+ if (!ASSERT_OK(err, "bpf_program__attach")) {
links[i] = NULL;
goto done;
}
@@ -81,24 +82,14 @@ void serial_test_bpf_obj_id(void)
bzero(&map_infos[i], info_len);
err = bpf_map_get_info_by_fd(map_fds[i], &map_infos[i],
&info_len);
- if (CHECK(err ||
- map_infos[i].type != BPF_MAP_TYPE_ARRAY ||
- map_infos[i].key_size != sizeof(__u32) ||
- map_infos[i].value_size != sizeof(__u64) ||
- map_infos[i].max_entries != 1 ||
- map_infos[i].map_flags != 0 ||
- info_len != sizeof(struct bpf_map_info) ||
- strcmp((char *)map_infos[i].name, expected_map_name),
- "get-map-info(fd)",
- "err %d errno %d type %d(%d) info_len %u(%zu) key_size %u value_size %u max_entries %u map_flags %X name %s(%s)\n",
- err, errno,
- map_infos[i].type, BPF_MAP_TYPE_ARRAY,
- info_len, sizeof(struct bpf_map_info),
- map_infos[i].key_size,
- map_infos[i].value_size,
- map_infos[i].max_entries,
- map_infos[i].map_flags,
- map_infos[i].name, expected_map_name))
+ if (!ASSERT_OK(err, "bpf_map_get_info_by_fd") ||
+ !ASSERT_EQ(map_infos[i].type, BPF_MAP_TYPE_ARRAY, "map_type") ||
+ !ASSERT_EQ(map_infos[i].key_size, sizeof(__u32), "key_size") ||
+ !ASSERT_EQ(map_infos[i].value_size, sizeof(__u64), "value_size") ||
+ !ASSERT_EQ(map_infos[i].max_entries, 1, "max_entries") ||
+ !ASSERT_EQ(map_infos[i].map_flags, 0, "map_flags") ||
+ !ASSERT_EQ(info_len, sizeof(struct bpf_map_info), "map_info_len") ||
+ !ASSERT_STREQ((char *)map_infos[i].name, expected_map_name, "map_name"))
goto done;
/* Check getting prog info */
@@ -112,48 +103,34 @@ void serial_test_bpf_obj_id(void)
prog_infos[i].xlated_prog_len = sizeof(xlated_insns);
prog_infos[i].map_ids = ptr_to_u64(map_ids + i);
prog_infos[i].nr_map_ids = 2;
+
err = clock_gettime(CLOCK_REALTIME, &real_time_ts);
- if (CHECK_FAIL(err))
+ if (!ASSERT_OK(err, "clock_gettime"))
goto done;
+
err = clock_gettime(CLOCK_BOOTTIME, &boot_time_ts);
- if (CHECK_FAIL(err))
+ if (!ASSERT_OK(err, "clock_gettime"))
goto done;
+
err = bpf_prog_get_info_by_fd(prog_fds[i], &prog_infos[i],
&info_len);
load_time = (real_time_ts.tv_sec - boot_time_ts.tv_sec)
+ (prog_infos[i].load_time / nsec_per_sec);
- if (CHECK(err ||
- prog_infos[i].type != BPF_PROG_TYPE_RAW_TRACEPOINT ||
- info_len != sizeof(struct bpf_prog_info) ||
- (env.jit_enabled && !prog_infos[i].jited_prog_len) ||
- (env.jit_enabled &&
- !memcmp(jited_insns, zeros, sizeof(zeros))) ||
- !prog_infos[i].xlated_prog_len ||
- !memcmp(xlated_insns, zeros, sizeof(zeros)) ||
- load_time < now - 60 || load_time > now + 60 ||
- prog_infos[i].created_by_uid != my_uid ||
- prog_infos[i].nr_map_ids != 1 ||
- *(int *)(long)prog_infos[i].map_ids != map_infos[i].id ||
- strcmp((char *)prog_infos[i].name, expected_prog_name),
- "get-prog-info(fd)",
- "err %d errno %d i %d type %d(%d) info_len %u(%zu) "
- "jit_enabled %d jited_prog_len %u xlated_prog_len %u "
- "jited_prog %d xlated_prog %d load_time %lu(%lu) "
- "uid %u(%u) nr_map_ids %u(%u) map_id %u(%u) "
- "name %s(%s)\n",
- err, errno, i,
- prog_infos[i].type, BPF_PROG_TYPE_SOCKET_FILTER,
- info_len, sizeof(struct bpf_prog_info),
- env.jit_enabled,
- prog_infos[i].jited_prog_len,
- prog_infos[i].xlated_prog_len,
- !!memcmp(jited_insns, zeros, sizeof(zeros)),
- !!memcmp(xlated_insns, zeros, sizeof(zeros)),
- load_time, now,
- prog_infos[i].created_by_uid, my_uid,
- prog_infos[i].nr_map_ids, 1,
- *(int *)(long)prog_infos[i].map_ids, map_infos[i].id,
- prog_infos[i].name, expected_prog_name))
+
+ if (!ASSERT_OK(err, "bpf_prog_get_info_by_fd") ||
+ !ASSERT_EQ(prog_infos[i].type, BPF_PROG_TYPE_RAW_TRACEPOINT, "prog_type") ||
+ !ASSERT_EQ(info_len, sizeof(struct bpf_prog_info), "prog_info_len") ||
+ !ASSERT_FALSE((env.jit_enabled && !prog_infos[i].jited_prog_len), "jited_prog_len") ||
+ !ASSERT_FALSE((env.jit_enabled && !memcmp(jited_insns, zeros, sizeof(zeros))),
+ "jited_insns") ||
+ !ASSERT_NEQ(prog_infos[i].xlated_prog_len, 0, "xlated_prog_len") ||
+ !ASSERT_NEQ(memcmp(xlated_insns, zeros, sizeof(zeros)), 0, "xlated_insns") ||
+ !ASSERT_GE(load_time, (now - 60), "load_time") ||
+ !ASSERT_LE(load_time, (now + 60), "load_time") ||
+ !ASSERT_EQ(prog_infos[i].created_by_uid, my_uid, "created_by_uid") ||
+ !ASSERT_EQ(prog_infos[i].nr_map_ids, 1, "nr_map_ids") ||
+ !ASSERT_EQ(*(int *)(long)prog_infos[i].map_ids, map_infos[i].id, "map_ids") ||
+ !ASSERT_STREQ((char *)prog_infos[i].name, expected_prog_name, "prog_name"))
goto done;
/* Check getting link info */
@@ -163,25 +140,12 @@ void serial_test_bpf_obj_id(void)
link_infos[i].raw_tracepoint.tp_name_len = sizeof(tp_name);
err = bpf_link_get_info_by_fd(bpf_link__fd(links[i]),
&link_infos[i], &info_len);
- if (CHECK(err ||
- link_infos[i].type != BPF_LINK_TYPE_RAW_TRACEPOINT ||
- link_infos[i].prog_id != prog_infos[i].id ||
- link_infos[i].raw_tracepoint.tp_name != ptr_to_u64(&tp_name) ||
- strcmp(u64_to_ptr(link_infos[i].raw_tracepoint.tp_name),
- "sys_enter") ||
- info_len != sizeof(struct bpf_link_info),
- "get-link-info(fd)",
- "err %d errno %d info_len %u(%zu) type %d(%d) id %d "
- "prog_id %d (%d) tp_name %s(%s)\n",
- err, errno,
- info_len, sizeof(struct bpf_link_info),
- link_infos[i].type, BPF_LINK_TYPE_RAW_TRACEPOINT,
- link_infos[i].id,
- link_infos[i].prog_id, prog_infos[i].id,
- (const char *)u64_to_ptr(link_infos[i].raw_tracepoint.tp_name),
- "sys_enter"))
+ if (!ASSERT_OK(err, "bpf_link_get_info_by_fd") ||
+ !ASSERT_EQ(link_infos[i].type, BPF_LINK_TYPE_RAW_TRACEPOINT, "link_type") ||
+ !ASSERT_EQ(link_infos[i].prog_id, prog_infos[i].id, "prog_id") ||
+ !ASSERT_EQ(link_infos[i].raw_tracepoint.tp_name, ptr_to_u64(&tp_name), "&tp_name") ||
+ !ASSERT_STREQ(u64_to_ptr(link_infos[i].raw_tracepoint.tp_name), "sys_enter", "tp_name"))
goto done;
-
}
/* Check bpf_prog_get_next_id() */
@@ -190,7 +154,7 @@ void serial_test_bpf_obj_id(void)
while (!bpf_prog_get_next_id(next_id, &next_id)) {
struct bpf_prog_info prog_info = {};
__u32 saved_map_id;
- int prog_fd;
+ int prog_fd, cmp_res;
info_len = sizeof(prog_info);
@@ -198,9 +162,7 @@ void serial_test_bpf_obj_id(void)
if (prog_fd < 0 && errno == ENOENT)
/* The bpf_prog is in the dead row */
continue;
- if (CHECK(prog_fd < 0, "get-prog-fd(next_id)",
- "prog_fd %d next_id %d errno %d\n",
- prog_fd, next_id, errno))
+ if (!ASSERT_GE(prog_fd, 0, "bpf_prog_get_fd_by_id"))
break;
for (i = 0; i < nr_iters; i++)
@@ -218,9 +180,8 @@ void serial_test_bpf_obj_id(void)
*/
prog_info.nr_map_ids = 1;
err = bpf_prog_get_info_by_fd(prog_fd, &prog_info, &info_len);
- if (CHECK(!err || errno != EFAULT,
- "get-prog-fd-bad-nr-map-ids", "err %d errno %d(%d)",
- err, errno, EFAULT))
+ if (!ASSERT_ERR(err, "bpf_prog_get_info_by_fd") ||
+ !ASSERT_EQ(errno, EFAULT, "bpf_prog_get_info_by_fd"))
break;
bzero(&prog_info, sizeof(prog_info));
info_len = sizeof(prog_info);
@@ -231,27 +192,22 @@ void serial_test_bpf_obj_id(void)
err = bpf_prog_get_info_by_fd(prog_fd, &prog_info, &info_len);
prog_infos[i].jited_prog_insns = 0;
prog_infos[i].xlated_prog_insns = 0;
- CHECK(err || info_len != sizeof(struct bpf_prog_info) ||
- memcmp(&prog_info, &prog_infos[i], info_len) ||
- *(int *)(long)prog_info.map_ids != saved_map_id,
- "get-prog-info(next_id->fd)",
- "err %d errno %d info_len %u(%zu) memcmp %d map_id %u(%u)\n",
- err, errno, info_len, sizeof(struct bpf_prog_info),
- memcmp(&prog_info, &prog_infos[i], info_len),
- *(int *)(long)prog_info.map_ids, saved_map_id);
+ cmp_res = memcmp(&prog_info, &prog_infos[i], info_len);
+
+ ASSERT_OK(err, "bpf_prog_get_info_by_fd");
+ ASSERT_EQ(info_len, sizeof(struct bpf_prog_info), "prog_info_len");
+ ASSERT_OK(cmp_res, "memcmp");
+ ASSERT_EQ(*(int *)(long)prog_info.map_ids, saved_map_id, "map_id");
close(prog_fd);
}
- CHECK(nr_id_found != nr_iters,
- "check total prog id found by get_next_id",
- "nr_id_found %u(%u)\n",
- nr_id_found, nr_iters);
+ ASSERT_EQ(nr_id_found, nr_iters, "prog_nr_id_found");
/* Check bpf_map_get_next_id() */
nr_id_found = 0;
next_id = 0;
while (!bpf_map_get_next_id(next_id, &next_id)) {
struct bpf_map_info map_info = {};
- int map_fd;
+ int map_fd, cmp_res;
info_len = sizeof(map_info);
@@ -259,9 +215,7 @@ void serial_test_bpf_obj_id(void)
if (map_fd < 0 && errno == ENOENT)
/* The bpf_map is in the dead row */
continue;
- if (CHECK(map_fd < 0, "get-map-fd(next_id)",
- "map_fd %d next_id %u errno %d\n",
- map_fd, next_id, errno))
+ if (!ASSERT_GE(map_fd, 0, "bpf_map_get_fd_by_id"))
break;
for (i = 0; i < nr_iters; i++)
@@ -274,25 +228,19 @@ void serial_test_bpf_obj_id(void)
nr_id_found++;
err = bpf_map_lookup_elem(map_fd, &array_key, &array_value);
- if (CHECK_FAIL(err))
+ if (!ASSERT_OK(err, "bpf_map_lookup_elem"))
goto done;
err = bpf_map_get_info_by_fd(map_fd, &map_info, &info_len);
- CHECK(err || info_len != sizeof(struct bpf_map_info) ||
- memcmp(&map_info, &map_infos[i], info_len) ||
- array_value != array_magic_value,
- "check get-map-info(next_id->fd)",
- "err %d errno %d info_len %u(%zu) memcmp %d array_value %llu(%llu)\n",
- err, errno, info_len, sizeof(struct bpf_map_info),
- memcmp(&map_info, &map_infos[i], info_len),
- array_value, array_magic_value);
+ cmp_res = memcmp(&map_info, &map_infos[i], info_len);
+ ASSERT_OK(err, "bpf_map_get_info_by_fd");
+ ASSERT_EQ(info_len, sizeof(struct bpf_map_info), "info_len");
+ ASSERT_OK(cmp_res, "memcmp");
+ ASSERT_EQ(array_value, array_magic_value, "array_value");
close(map_fd);
}
- CHECK(nr_id_found != nr_iters,
- "check total map id found by get_next_id",
- "nr_id_found %u(%u)\n",
- nr_id_found, nr_iters);
+ ASSERT_EQ(nr_id_found, nr_iters, "map_nr_id_found");
/* Check bpf_link_get_next_id() */
nr_id_found = 0;
@@ -308,9 +256,7 @@ void serial_test_bpf_obj_id(void)
if (link_fd < 0 && errno == ENOENT)
/* The bpf_link is in the dead row */
continue;
- if (CHECK(link_fd < 0, "get-link-fd(next_id)",
- "link_fd %d next_id %u errno %d\n",
- link_fd, next_id, errno))
+ if (!ASSERT_GE(link_fd, 0, "bpf_link_get_fd_by_id"))
break;
for (i = 0; i < nr_iters; i++)
@@ -325,17 +271,13 @@ void serial_test_bpf_obj_id(void)
err = bpf_link_get_info_by_fd(link_fd, &link_info, &info_len);
cmp_res = memcmp(&link_info, &link_infos[i],
offsetof(struct bpf_link_info, raw_tracepoint));
- CHECK(err || info_len != sizeof(link_info) || cmp_res,
- "check get-link-info(next_id->fd)",
- "err %d errno %d info_len %u(%zu) memcmp %d\n",
- err, errno, info_len, sizeof(struct bpf_link_info),
- cmp_res);
+ ASSERT_OK(err, "bpf_link_get_info_by_fd");
+ ASSERT_EQ(info_len, sizeof(link_info), "info_len");
+ ASSERT_OK(cmp_res, "memcmp");
close(link_fd);
}
- CHECK(nr_id_found != nr_iters,
- "check total link id found by get_next_id",
- "nr_id_found %u(%u)\n", nr_id_found, nr_iters);
+ ASSERT_EQ(nr_id_found, nr_iters, "link_nr_id_found");
done:
for (i = 0; i < nr_iters; i++) {
--
2.25.1
vmlinux.c uses the `CHECK` calls even though the use of ASSERT_ series
of macros is preferred in the bpf selftests.
This patch replaces all `CHECK` calls for equivalent `ASSERT_`
macro calls.
Signed-off-by: Yuran Pereira <[email protected]>
---
tools/testing/selftests/bpf/prog_tests/vmlinux.c | 16 ++++++++--------
1 file changed, 8 insertions(+), 8 deletions(-)
diff --git a/tools/testing/selftests/bpf/prog_tests/vmlinux.c b/tools/testing/selftests/bpf/prog_tests/vmlinux.c
index 72310cfc6474..6fb2217d940b 100644
--- a/tools/testing/selftests/bpf/prog_tests/vmlinux.c
+++ b/tools/testing/selftests/bpf/prog_tests/vmlinux.c
@@ -16,27 +16,27 @@ static void nsleep()
void test_vmlinux(void)
{
- int duration = 0, err;
+ int err;
struct test_vmlinux* skel;
struct test_vmlinux__bss *bss;
skel = test_vmlinux__open_and_load();
- if (CHECK(!skel, "skel_open", "failed to open skeleton\n"))
+ if (!ASSERT_OK_PTR(skel, "test_vmlinux__open_and_load"))
return;
bss = skel->bss;
err = test_vmlinux__attach(skel);
- if (CHECK(err, "skel_attach", "skeleton attach failed: %d\n", err))
+ if (!ASSERT_OK(err, "test_vmlinux__attach"))
goto cleanup;
/* trigger everything */
nsleep();
- CHECK(!bss->tp_called, "tp", "not called\n");
- CHECK(!bss->raw_tp_called, "raw_tp", "not called\n");
- CHECK(!bss->tp_btf_called, "tp_btf", "not called\n");
- CHECK(!bss->kprobe_called, "kprobe", "not called\n");
- CHECK(!bss->fentry_called, "fentry", "not called\n");
+ ASSERT_TRUE(bss->tp_called, "tp");
+ ASSERT_TRUE(bss->raw_tp_called, "raw_tp");
+ ASSERT_TRUE(bss->tp_btf_called, "tp_btf");
+ ASSERT_TRUE(bss->kprobe_called, "kprobe");
+ ASSERT_TRUE(bss->fentry_called, "fentry");
cleanup:
test_vmlinux__destroy(skel);
--
2.25.1
On Wed, Nov 15, 2023 at 10:14 PM Yuran Pereira
<[email protected]> wrote:
>
> Multiple files/programs in `tools/testing/selftests/bpf/prog_tests/` still
> heavily use the `CHECK` macro, even when better `ASSERT_` alternatives are
> available.
>
> As it was already pointed out by Yonghong Song [1] in the bpf selftests the use
> of the ASSERT_* series of macros is preferred over the CHECK macro.
>
> This patchset replaces the usage of `CHECK(` macros to the equivalent `ASSERT_`
> family of macros in the following prog_tests:
> - bind_perm.c
> - bpf_obj_id.c
> - bpf_tcp_ca.c
> - vmlinux.c
>
> [1] https://lore.kernel.org/lkml/[email protected]
>
> Yuran Pereira (4):
> Replaces the usage of CHECK calls for ASSERTs in bpf_tcp_ca
> Replaces the usage of CHECK calls for ASSERTs in bind_perm
> Replaces the usage of CHECK calls for ASSERTs in bpf_obj_id
> selftests/bpf: Replaces the usage of CHECK calls for ASSERTs in
> vmlinux
>
> .../selftests/bpf/prog_tests/bind_perm.c | 6 +-
> .../selftests/bpf/prog_tests/bpf_obj_id.c | 204 +++++++-----------
> .../selftests/bpf/prog_tests/bpf_tcp_ca.c | 48 ++---
> .../selftests/bpf/prog_tests/vmlinux.c | 16 +-
> 4 files changed, 105 insertions(+), 169 deletions(-)
>
> --
> 2.25.1
>
It seems like you introduced a few failures in selftests, please take
a look at [0] and fix them, thanks!
[0] https://github.com/kernel-patches/bpf/actions/runs/6885976657/job/18731029901
Hello Andrii,
On Fri, Nov 17, 2023 at 12:18:40PM -0500, Andrii Nakryiko wrote:
>
> It seems like you introduced a few failures in selftests, please take
> a look at [0] and fix them, thanks!
>
Thank you for letting me know. I will see what's wrong
and submit a v2 ASAP.
Thanks,
Yuran Pereira