[LTP] [PATCH 3/3] tst_fd.c: replace syscall() with tst_syscall_base()

[Gang Yan]

From: Gang Yan <yangang@kylinos.cn>

If some feature is not supported by some arch, like _NR__memfd_secret,
it will become -1. And the syscall can continue with '-1' and the output
would be:

'''
accept03.c:47: TFAIL: accept() on memfd secret expected ENOTSOCK: EBADF (9)
tst_fd.c:307: TBROK: close(38) failed: EBADF(9)
'''

This patch use tst_syscall to give a more specific fail reason:

'''
tst_fd.c:262: TCONF: Skipping memfd secret: ENOSYS(38)
'''

Signed-off-by: Gang Yan <yangang@kylinos.cn>
---
 lib/tst_fd.c | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/lib/tst_fd.c b/lib/tst_fd.c
index 6538a098c..1d90505b2 100644
--- a/lib/tst_fd.c
+++ b/lib/tst_fd.c
@@ -139,14 +139,14 @@ static void open_timerfd(struct tst_fd *fd)
 
 static void open_pidfd(struct tst_fd *fd)
 {
-	fd->fd = syscall(__NR_pidfd_open, getpid(), 0);
+	fd->fd = tst_syscall_base(__NR_pidfd_open, getpid(), 0);
 	if (fd->fd < 0)
 		tst_res(TCONF | TERRNO, "pidfd_open()");
 }
 
 static void open_fanotify(struct tst_fd *fd)
 {
-	fd->fd = syscall(__NR_fanotify_init, FAN_CLASS_NOTIF, O_RDONLY);
+	fd->fd = tst_syscall_base(__NR_fanotify_init, FAN_CLASS_NOTIF, O_RDONLY);
 	if (fd->fd < 0) {
 		tst_res(TCONF | TERRNO,
 			"Skipping %s", tst_fd_desc(fd));
@@ -164,7 +164,7 @@ static void open_inotify(struct tst_fd *fd)
 
 static void open_userfaultfd(struct tst_fd *fd)
 {
-	fd->fd = syscall(__NR_userfaultfd, 0);
+	fd->fd = tst_syscall_base(__NR_userfaultfd, 0);
 
 	if (fd->fd < 0) {
 		tst_res(TCONF | TERRNO,
@@ -183,7 +183,7 @@ static void open_perf_event(struct tst_fd *fd)
 		.exclude_hv = 1,
 	};
 
-	fd->fd = syscall(__NR_perf_event_open, &pe_attr, 0, -1, -1, 0);
+	fd->fd = tst_syscall_base(__NR_perf_event_open, &pe_attr, 0, -1, -1, 0);
 	if (fd->fd < 0) {
 		tst_res(TCONF | TERRNO,
 			"Skipping %s", tst_fd_desc(fd));
@@ -194,7 +194,7 @@ static void open_io_uring(struct tst_fd *fd)
 {
 	struct io_uring_params uring_params = {};
 
-	fd->fd = syscall(__NR_io_uring_setup, 1, &uring_params);
+	fd->fd = tst_syscall_base(__NR_io_uring_setup, 1, &uring_params);
 	if (fd->fd < 0) {
 		tst_res(TCONF | TERRNO,
 			"Skipping %s", tst_fd_desc(fd));
@@ -210,7 +210,7 @@ static void open_bpf_map(struct tst_fd *fd)
 		.max_entries = 1,
 	};
 
-	fd->fd = syscall(__NR_bpf, BPF_MAP_CREATE, &array_attr, sizeof(array_attr));
+	fd->fd = tst_syscall_base(__NR_bpf, BPF_MAP_CREATE, &array_attr, sizeof(array_attr));
 	if (fd->fd < 0) {
 		tst_res(TCONF | TERRNO,
 			"Skipping %s", tst_fd_desc(fd));
@@ -219,7 +219,7 @@ static void open_bpf_map(struct tst_fd *fd)
 
 static void open_fsopen(struct tst_fd *fd)
 {
-	fd->fd = syscall(__NR_fsopen, "ext2", 0);
+	fd->fd = tst_syscall_base(__NR_fsopen, "ext2", 0);
 	if (fd->fd < 0) {
 		tst_res(TCONF | TERRNO,
 			"Skipping %s", tst_fd_desc(fd));
@@ -228,7 +228,7 @@ static void open_fsopen(struct tst_fd *fd)
 
 static void open_fspick(struct tst_fd *fd)
 {
-	fd->fd = syscall(__NR_fspick, AT_FDCWD, "/", 0);
+	fd->fd = tst_syscall_base(__NR_fspick, AT_FDCWD, "/", 0);
 	if (fd->fd < 0) {
 		tst_res(TCONF | TERRNO,
 			"Skipping %s", tst_fd_desc(fd));
@@ -237,7 +237,7 @@ static void open_fspick(struct tst_fd *fd)
 
 static void open_open_tree(struct tst_fd *fd)
 {
-	fd->fd = syscall(__NR_open_tree, AT_FDCWD, "/", 0);
+	fd->fd = tst_syscall_base(__NR_open_tree, AT_FDCWD, "/", 0);
 	if (fd->fd < 0) {
 		tst_res(TCONF | TERRNO,
 			"Skipping %s", tst_fd_desc(fd));
@@ -246,7 +246,7 @@ static void open_open_tree(struct tst_fd *fd)
 
 static void open_memfd(struct tst_fd *fd)
 {
-	fd->fd = syscall(__NR_memfd_create, "ltp_memfd", 0);
+	fd->fd = tst_syscall_base(__NR_memfd_create, "ltp_memfd", 0);
 	if (fd->fd < 0) {
 		tst_res(TCONF | TERRNO,
 			"Skipping %s", tst_fd_desc(fd));
@@ -255,7 +255,7 @@ static void open_memfd(struct tst_fd *fd)
 
 static void open_memfd_secret(struct tst_fd *fd)
 {
-	fd->fd = syscall(__NR_memfd_secret, 0);
+	fd->fd = tst_syscall_base(__NR_memfd_secret, 0);
 	if (fd->fd < 0) {
 		tst_res(TCONF | TERRNO,
 			"Skipping %s", tst_fd_desc(fd));
-- 
2.43.0