libc: Introduce files from SCC
Taken from http://git.simple-cc.org/scc/ from the following commit:
67508ad14af314cea2229783d3c084f28c41daf0
Permission has been granted from the author to use them under the
license BSD-3-Clause instead of ISC.
Change-Id: I65c0ce3ab60c49d34a57533af12a74bd7bde88e5
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
diff --git a/include/lib/libc/string.h b/include/lib/libc/string.h
new file mode 100644
index 0000000..72ba769
--- /dev/null
+++ b/include/lib/libc/string.h
@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2012-2017 Roberto E. Vargas Caballero
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef _STRING_H
+#define _STRING_H
+
+#include <arch/string.h>
+
+#ifndef NULL
+#define NULL ((void *) 0)
+#endif
+
+extern void *memcpy(void * restrict s1, const void * restrict s2, size_t n);
+extern void *memmove(void *s1, const void *s2, size_t n);
+extern char *strcpy(char * restrict s1, const char * restrict s2);
+extern char *strncpy(char * restrict s1, const char * restrict s2, size_t n);
+extern char *strcat(char * restrict s1, const char * restrict s2);
+extern char *strncat(char * restrict s1, const char * restrict s2, size_t n);
+extern int memcmp(const void *s1, const void *s2, size_t n);
+extern int strcmp(const char *s1, const char *s2);
+extern int strcoll(const char *s1, const char *s2);
+extern int strncmp(const char *s1, const char *s2, size_t n);
+extern size_t strxfrm(char * restrict s1, const char * restrict s2, size_t n);
+extern void *memchr(const void *s, int c, size_t n);
+extern char *strchr(const char *s, int c);
+extern size_t strcspn(const char *s1, const char *s2);
+extern char *strpbrk(const char *s1, const char *s2);
+extern char *strrchr(const char *s, int c);
+extern size_t strspn(const char *s1, const char *s2);
+extern char *strstr(const char *s1, const char *s2);
+extern char *strtok(char * restrict s1, const char * restrict s2);
+extern void *memset(void *s, int c, size_t n);
+extern char *strerror(int errnum);
+extern size_t strlen(const char *s);
+
+#endif