1 files changed, 63 insertions, 0 deletions
diff --git a/tests/tcg/cris/bare/sys.c b/tests/tcg/cris/bare/sys.c
new file mode 100644
index 0000000000..1644eecc33
--- /dev/null
+++ b/tests/tcg/cris/bare/sys.c
@@ -0,0 +1,63 @@
+/*
+ * Helper functions for CRIS system tests
+ *
+ * There is no libc and only a limited set of headers.
+ */
+
+#include <stddef.h>
+
+void exit(int status)
+{
+    register unsigned int callno asm ("r9") = 1; /* NR_exit */
+
+    asm volatile ("break 13\n"
+                  : /* no outputs */
+                  : "r" (callno)
+                  : "memory");
+    while (1) {
+        /* do nothing */
+    };
+}
+
+size_t write(int fd, const void *buf, size_t count)
+{
+    register unsigned int callno asm ("r9") = 4; /* NR_write */
+    register unsigned int r10 asm ("r10") = fd;
+    register const void *r11 asm ("r11") = buf;
+    register size_t r12 asm ("r12") = count;
+    register unsigned int r asm ("r10");
+
+    asm volatile ("break 13\n"
+                  : "=r" (r)
+                  : "r" (callno), "0" (r10), "r" (r11), "r" (r12)
+                  : "memory");
+
+    return r;
+}
+
+static inline int mystrlen(char *s)
+{
+    int i = 0;
+    while (s[i]) {
+        i++;
+    }
+    return i;
+}
+
+
+void pass(void)
+{
+    char s[] = "passed.\n";
+    write(1, s, sizeof(s) - 1);
+    exit(0);
+}
+
+void _fail(char *reason)
+{
+    char s[] = "\nfailed: ";
+    int len = mystrlen(reason);
+    write(1, s, sizeof(s) - 1);
+    write(1, reason, len);
+    write(1, "\n", 1);
+    exit(1);
+}