Include liburing in static build

src/liburing/lib.h

@@ -0,0 +1,52 @@
+/* SPDX-License-Identifier: MIT */
+#ifndef LIBURING_LIB_H
+#define LIBURING_LIB_H
+
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#if defined(__x86_64__) || defined(__i386__)
+#include "arch/x86/lib.h"
+#elif defined(__aarch64__)
+#include "arch/aarch64/lib.h"
+#elif defined(__riscv) && __riscv_xlen == 64
+#include "arch/riscv64/lib.h"
+#else
+/*
+ * We don't have nolibc support for this arch. Must use libc!
+ */
+#ifdef CONFIG_NOLIBC
+#error "This arch doesn't support building liburing without libc"
+#endif
+/* libc wrappers. */
+#include "arch/generic/lib.h"
+#endif
+
+
+#ifndef offsetof
+#define offsetof(TYPE, FIELD) ((size_t) &((TYPE *)0)->FIELD)
+#endif
+
+#ifndef container_of
+#define container_of(PTR, TYPE, FIELD) ({			\
+	__typeof__(((TYPE *)0)->FIELD) *__FIELD_PTR = (PTR);	\
+	(TYPE *)((char *) __FIELD_PTR - offsetof(TYPE, FIELD));	\
+})
+#endif
+
+#define __maybe_unused		__attribute__((__unused__))
+#define __hot			__attribute__((__hot__))
+#define __cold			__attribute__((__cold__))
+
+#ifdef CONFIG_NOLIBC
+void *__uring_memset(void *s, int c, size_t n);
+void *__uring_malloc(size_t len);
+void __uring_free(void *p);
+
+#define malloc(LEN)		__uring_malloc(LEN)
+#define free(PTR)		__uring_free(PTR)
+#define memset(PTR, C, LEN)	__uring_memset(PTR, C, LEN)
+#endif
+
+#endif /* #ifndef LIBURING_LIB_H */