c/simple: add create-thread test

tests/c/meson.build

@@ -3,6 +3,7 @@ inc_dir = include_directories('include')
 asm_tests = {
   'simple': {
     'hello': {},
+    'create-thread': { 'link_args': ['-lpthread'] },
   },
 }
 
@@ -18,6 +19,10 @@ foreach suite, tests : asm_tests
       exe_args += { 'c_args': opts['c_args'] }
     endif
 
+    if 'link_args' in opts
+      exe_args += { 'link_args': opts['link_args'] }
+    endif
+
     test_args = {
       'timeout': 30,
       'suite': [suite],

tests/c/simple/create-thread.c

@@ -0,0 +1,35 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <pthread.h>
+
+typedef struct {
+    uint32_t x;
+} args_t;
+
+void *thread_entry(void *arg) {
+    args_t *args = (args_t *) arg;
+    args->x = 0xdeadbeef;
+    return NULL;
+}
+
+int main(int argc, char *argv[]) {
+    pthread_t th;
+    args_t args = { 0 };
+    int err;
+
+    err = pthread_create(&th, NULL, thread_entry, (void *) &args);
+    if (err != 0) {
+        fprintf(stderr, "error: pthread_create %s\n", strerror(err));
+        exit(EXIT_FAILURE);
+    }
+
+    err = pthread_join(th, NULL);
+    if (err != 0) {
+        fprintf(stderr, "error: pthread_join %s\n", strerror(err));
+        exit(EXIT_FAILURE);
+    }
+
+    return args.x == 0xdeadbeef ? EXIT_SUCCESS : EXIT_FAILURE;
+}