Add build system scaffolding and libc headers

1 files changed, 45 insertions, 0 deletions

diff --git a/include/sys/wait.h b/include/sys/wait.h
new file mode 100644
index 00000000..bbe8a8fe
--- /dev/null
+++ b/include/sys/wait.h
@@ -0,0 +1,45 @@
+#ifndef __WAIT_H
+#define __WAIT_H
+
+#define WCONTINUED	  0x00000008
+#define WNOHANG		  0x00000001
+#define WUNTRACED	  0x00000002
+#define WCOREDUMP(__s)	  ((__s) & 0x80)
+#define WIFCONTINUED(__s) ((__s) == 0xffff)
+#define WIFEXITED(__s)	  (!WTERMSIG(__s))
+#define WIFSIGNALED(__s)  (((s) & 0xffff) - 1U < 0xffu)
+#define WIFSTOPPED(__s)	  ((short)((((__s) & 0xffff) * 0x10001U) >> 8) > 0x7f00)
+#define WSTOPSIG(__s)	  WEXITSTATUS(__s)
+#define WTERMSIG(__s)	  ((__s) & 0x7f)
+
+#define WEXITED
+#define WNOWAIT
+#define WSTOPPED
+
+typedef __UINT32_TYPE__ id_t;
+typedef __INT64_TYPE__ pid_t;
+typedef __UINT32_TYPE__ uid_t;
+
+union sigval {
+	int sival_int;
+	void *sival_ptr;
+};
+
+typedef struct {
+	int si_signo;
+	int si_code;
+	int si_errno;
+	pid_t si_pid;
+	uid_t si_uid;
+	void *si_addr;
+	int si_status;
+	union sigval si_value;
+} siginfo_t;
+
+typedef enum { P_ALL = 0, P_PID = 1, P_PGID = 2 } idtype_t;
+
+pid_t wait(int *);
+int waitid(idtype_t, id_t, siginfo_t *, int);
+pid_t waitpid(pid_t, int *, int);
+
+#endif