lib/libc: move some functions to libc.c

common/lib/libc.c

@@ -0,0 +1,45 @@
+#include <stddef.h>
+#include <stdint.h>
+#include <lib/libc.h>
+
+size_t strnlen(const char *str, size_t maxlen) {
+    size_t len;
+
+    for (len = 0; len < maxlen && str[len]; len++);
+
+    return len;
+}
+
+void *memchr(const void *ptr, int ch, size_t n) {
+    uint8_t *p = (uint8_t *)ptr;
+
+    for (size_t i = 0; i < n; i++) {
+        if (p[i] == ch) {
+            return (void *)ptr + i;
+        }
+    }
+
+    return NULL;
+}
+
+char *strchr(const char *str, int ch) {
+    for (size_t i = 0; str[i]; i++) {
+        if (str[i] == ch) {
+            return (char *)str + i;
+        }
+    }
+
+    return NULL;
+}
+
+char *strrchr(const char *str, int ch) {
+    char *p = NULL;
+
+    for (size_t i = 0; str[i]; i++) {
+        if (str[i] == ch) {
+            p = (char *)str + i;
+        }
+    }
+
+    return p;
+}

common/lib/libc.s2.c

@@ -112,48 +112,6 @@ size_t strlen(const char *str) {
     return len;
 }
 
-size_t strnlen(const char *str, size_t maxlen) {
-    size_t len;
-
-    for (len = 0; len < maxlen && str[len]; len++);
-
-    return len;
-}
-
-void *memchr(const void *ptr, int ch, size_t n) {
-    uint8_t *p = (uint8_t *)ptr;
-
-    for (size_t i = 0; i < n; i++) {
-        if (p[i] == ch) {
-            return (void *)ptr + i;
-        }
-    }
-
-    return NULL;
-}
-
-char *strchr(const char *str, int ch) {
-    for (size_t i = 0; str[i]; i++) {
-        if (str[i] == ch) {
-            return (char *)str + i;
-        }
-    }
-
-    return NULL;
-}
-
-char *strrchr(const char *str, int ch) {
-    char *p = NULL;
-
-    for (size_t i = 0; str[i]; i++) {
-        if (str[i] == ch) {
-            p = (char *)str + i;
-        }
-    }
-
-    return p;
-}
-
 int inet_pton(const char *src, void *dst) {
     uint8_t array[4];
     const char *current = src;