ulib setjmp() and longjmp()

ulib/jump/jump.h

@@ -0,0 +1,23 @@
+#ifndef ULIB_JUMP_JUMP_H_
+#define ULIB_JUMP_JUMP_H_
+
+#include <stdint.h>
+#include <stddef.h>
+
+/* typedef struct { */
+/*   uint64_t rip; */
+/*   uint64_t rsp; */
+/*   uint64_t rbp; */
+/*   uint64_t rbx; */
+/*   uint64_t r12; */
+/*   uint64_t r13; */
+/*   uint64_t r14; */
+/*   uint64_t r15; */
+/* } JumpEnv; */
+
+typedef uint64_t jmp_buf[8];
+
+int setjmp(jmp_buf env);
+void longjmp(jmp_buf env, int status);
+
+#endif // ULIB_JUMP_JUMP_H_