From: Jan Janssen <medhefgo@web.de>
Date: Tue, 6 Sep 2022 08:13:50 +0000 (+0200)
Subject: boot: Add mempcpy
X-Git-Tag: v252-rc1~232^2~7
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=aa23f91ed677e4e3f89687c94b74b1afc600324c;p=thirdparty%2Fsystemd.git

boot: Add mempcpy
---

diff --git a/src/boot/efi/efi-string.h b/src/boot/efi/efi-string.h
index c25349c0e1e..57899c978bf 100644
--- a/src/boot/efi/efi-string.h
+++ b/src/boot/efi/efi-string.h
@@ -112,6 +112,13 @@ bool parse_number16(const char16_t *s, uint64_t *ret_u, const char16_t **ret_tai
 #  define memcmp __builtin_memcmp
 #  define memcpy __builtin_memcpy
 #  define memset __builtin_memset
+
+static inline void *mempcpy(void * restrict dest, const void * restrict src, size_t n) {
+        if (!dest || !src || n == 0)
+                return dest;
+        memcpy(dest, src, n);
+        return (uint8_t *) dest + n;
+}
 #endif
 
 /* The actual implementations of builtins with efi_ prefix so we can unit test them. */