@@ -767,6 +767,27 @@ int test_mmap_munmap(void)
return ret;
}
+static int test_pipe(void)
+{
+ const char *const msg = "hello, nolibc";
+ int pipefd[2];
+ char buf[32];
+ ssize_t len;
+
+ if (pipe(pipefd) == -1)
+ return 1;
+
+ write(pipefd[1], msg, strlen(msg));
+ close(pipefd[1]);
+ len = read(pipefd[0], buf, sizeof(buf));
+ close(pipefd[0]);
+
+ if (len != strlen(msg))
+ return 1;
+
+ return !!memcmp(buf, msg, len);
+}
+
/* Run syscall tests between IDs <min> and <max>.
* Return 0 on success, non-zero on failure.
@@ -851,6 +872,7 @@ int run_syscall(int min, int max)
CASE_TEST(mmap_munmap_good); EXPECT_SYSZR(1, test_mmap_munmap()); break;
CASE_TEST(open_tty); EXPECT_SYSNE(1, tmp = open("/dev/null", 0), -1); if (tmp != -1) close(tmp); break;
CASE_TEST(open_blah); EXPECT_SYSER(1, tmp = open("/proc/self/blah", 0), -1, ENOENT); if (tmp != -1) close(tmp); break;
+ CASE_TEST(pipe); EXPECT_SYSZR(1, test_pipe()); break;
CASE_TEST(poll_null); EXPECT_SYSZR(1, poll(NULL, 0, 0)); break;
CASE_TEST(poll_stdout); EXPECT_SYSNE(1, ({ struct pollfd fds = { 1, POLLOUT, 0}; poll(&fds, 1, 0); }), -1); break;
CASE_TEST(poll_fault); EXPECT_SYSER(1, poll((void *)1, 1, 0), -1, EFAULT); break;
Add a test case of pipe that sends and receives message in a single process. Suggested-by: Thomas Weißschuh <thomas@t-8ch.de> Suggested-by: Willy Tarreau <w@1wt.eu> Link: https://lore.kernel.org/all/c5de2d13-3752-4e1b-90d9-f58cca99c702@t-8ch.de/ Signed-off-by: Yuan Tan <tanyuan@tinylab.org> --- tools/testing/selftests/nolibc/nolibc-test.c | 22 ++++++++++++++++++++ 1 file changed, 22 insertions(+)