feat: nearly complete POSIX.1-2008 compliant terminal interface implementation

[lunaix-os.git] / lunaix-os / includes / lunaix / compiler.h

diff --git a/lunaix-os/includes/lunaix/compiler.h b/lunaix-os/includes/lunaix/compiler.h
index 314afd95e297948b6d3596f341ed6f770c32c819..137d288c5619029b86f66e5fae7b6828ba926ffe 100644 (file)
--- a/lunaix-os/includes/lunaix/compiler.h
+++ b/lunaix-os/includes/lunaix/compiler.h
@@ -7,8 +7,21 @@
 #define weak_alias(name) __attribute__((weak, alias(name)))
 #define weak __attribute__((weak))
 #define noret __attribute__((noreturn))
+#define optimize(opt) __attribute__((optimize(opt)))
+
+#define prefetch_rd(ptr, ll) __builtin_prefetch((ptr), 0, ll)
+#define prefetch_wr(ptr, ll) __builtin_prefetch((ptr), 1, ll)
 
 #define stringify(v) #v
 #define stringify__(v) stringify(v)
 
+inline static void noret
+spin()
+{
+    volatile int __infloop = 1;
+    while (__infloop)
+        ;
+    __builtin_unreachable();
+}
+
 #endif /* __LUNAIX_COMPILER_H */