Add macos support

C/lib/nl_io.h

@@ -6,11 +6,15 @@
    inotify
  */
 
+#include <termios.h>
 #include <time.h>
 
 #ifdef __LINUX_NOLIBC__
+#ifndef MAP_FAILED
+#define MAP_FAILED ((void *)-1)
+#endif
 #include "nl_syscall.h"
-/* Basic I/O */
+// Basic I/O
 static inline ssize_t nl_write(int fd, const void *buf, size_t n) {
   return (ssize_t)__sc3(SYS_write, fd, (long)buf, (long)n);
 }
@@ -28,7 +32,20 @@ static inline int nl_ioctl(int fd, unsigned long req, void *arg) {
   return (int)__sc3(SYS_ioctl, fd, (long)req, (long)arg);
 }
 
-/* mmap / munmap */
+// fprintf / stderr
+#define stderr 2
+#define fprintf(fd, fmt, ...)                                                  \
+  do {                                                                         \
+    char _fb[1024];                                                            \
+    int _fn = nl_snprintf(_fb, sizeof(_fb), fmt, ##__VA_ARGS__);               \
+    if (_fn > 0) {                                                             \
+      size_t _nw =                                                             \
+          (_fn < (int)sizeof(_fb) - 1) ? (size_t)_fn : sizeof(_fb) - 1;        \
+      nl_write((int)(long)(fd), _fb, _nw);                                     \
+    }                                                                          \
+  } while (0)
+
+// mmap / munmap
 static inline void *nl_mmap(void *addr, size_t len, int prot, int flags, int fd,
                             long off) {
   return (void *)__sc6(SYS_mmap, (long)addr, (long)len, prot, flags, fd, off);
@@ -37,7 +54,7 @@ static inline int nl_munmap(void *addr, size_t len) {
   return (int)__sc2(SYS_munmap, (long)addr, (long)len);
 }
 
-/* select */
+// select
 struct nl_timeval {
   long tv_sec;
   long tv_usec;
@@ -55,7 +72,7 @@ static inline int nl_select(int nfds, nl_fd_set *r, nl_fd_set *w, nl_fd_set *e,
   return (int)__sc6(SYS_select, nfds, (long)r, (long)w, (long)e, (long)tv, 0);
 }
 
-/* clock / sleep */
+// clock / sleep
 static inline int nl_clock_gettime(clockid_t id, struct timespec *ts) {
   return (int)__sc2(SYS_clock_gettime, id, (long)ts);
 }
@@ -78,7 +95,7 @@ static inline void nl_exit(int code) {
   __builtin_unreachable();
 }
 
-/* inotify */
+// inotify
 static inline int nl_inotify_init1(int flags) {
   return (int)__sc1(SYS_inotify_init1, flags);
 }
@@ -87,12 +104,16 @@ static inline int nl_inotify_add_watch(int fd, const char *path,
   return (int)__sc3(SYS_inotify_add_watch, fd, (long)path, mask);
 }
 
-/* termios via ioctl */
+// termios via ioctl
 #include <termios.h>
 #define NL_TCGETS 0x5401
 #define NL_TCSETS 0x5402
 #define NL_TCSETSF 0x5404
 
+#define TCSANOW 0
+#define TCSADRAIN 1
+#define TCSAFLUSH 2
+
 static inline int nl_tcgetattr(int fd, struct termios *t) {
   return nl_ioctl(fd, NL_TCGETS, t);
 }
@@ -101,7 +122,7 @@ static inline int nl_tcsetattr(int fd, int action, const struct termios *t) {
   return nl_ioctl(fd, req, (void *)t);
 }
 
-/* Macro redirects */
+// Macro redirects
 #define write(fd, buf, n) nl_write(fd, buf, n)
 #define read(fd, buf, n) nl_read(fd, buf, n)
 #define _open2(p, f) nl_open(p, f, 0)

C/lib/nl_printf.c

@@ -1,5 +1,4 @@
-#include "nl_printf.h"
-// #include "nolibc.h"
+#include "nolibc.h"
 #include <stdarg.h>
 #include <stddef.h>
 
@@ -163,3 +162,7 @@ int nl_snprintf(char *buf, size_t size, const char *fmt, ...) {
   va_end(ap);
   return r;
 }
+
+void nl_eprint(const char *msg) {
+    nl_write(2, msg, nl_strlen(msg));
+}

C/lib/nl_printf.h

@@ -1,17 +1,13 @@
 #ifndef NL_PRINTF_H
 #define NL_PRINTF_H
 
-#include "nl_io.h"
 #include "nl_string.h"
 #include <stdarg.h>
 #include <stddef.h>
 
 int nl_vsnprintf(char *buf, size_t size, const char *fmt, va_list ap);
 int nl_snprintf(char *buf, size_t size, const char *fmt, ...);
-
-static inline void nl_eprint(const char *msg) {
-  nl_write(2, msg, nl_strlen(msg));
-}
+void nl_eprint(const char *msg);
 
 static inline int nl_fmt_fps(char *buf, size_t sz, double fps) {
   int whole = (int)fps;
@@ -25,15 +21,4 @@ static inline int nl_fmt_fps(char *buf, size_t sz, double fps) {
 
 #define snprintf nl_snprintf
 
-#define stderr 2
-#define fprintf(fd, fmt, ...)                                                  \
-  do {                                                                         \
-    char _fb[1024];                                                            \
-    int _fn = nl_snprintf(_fb, sizeof(_fb), fmt, ##__VA_ARGS__);               \
-    if (_fn > 0) {                                                             \
-      size_t _nwrite =                                                         \
-          (_fn < (int)sizeof(_fb) - 1) ? (size_t)_fn : sizeof(_fb) - 1;        \
-      nl_write((int)(long)(fd), _fb, _nwrite);                                 \
-    }                                                                          \
-  } while (0)
 #endif