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authorAngelos Mouzakitis <a.mouzakitis@virtualopensystems.com>2023-10-10 14:33:42 +0000
committerAngelos Mouzakitis <a.mouzakitis@virtualopensystems.com>2023-10-10 14:33:42 +0000
commitaf1a266670d040d2f4083ff309d732d648afba2a (patch)
tree2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/skiboot/libc/string/memcpy.c
parente02cda008591317b1625707ff8e115a4841aa889 (diff)
Add submodule dependency filesHEADmaster
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'roms/skiboot/libc/string/memcpy.c')
-rw-r--r--roms/skiboot/libc/string/memcpy.c36
1 files changed, 36 insertions, 0 deletions
diff --git a/roms/skiboot/libc/string/memcpy.c b/roms/skiboot/libc/string/memcpy.c
new file mode 100644
index 000000000..26f953d2e
--- /dev/null
+++ b/roms/skiboot/libc/string/memcpy.c
@@ -0,0 +1,36 @@
+/******************************************************************************
+ * Copyright (c) 2004, 2008 IBM Corporation
+ * All rights reserved.
+ * This program and the accompanying materials
+ * are made available under the terms of the BSD License
+ * which accompanies this distribution, and is available at
+ * http://www.opensource.org/licenses/bsd-license.php
+ *
+ * Contributors:
+ * IBM Corporation - initial implementation
+ *****************************************************************************/
+
+#include <stddef.h>
+#include <ccan/short_types/short_types.h>
+
+void *memcpy(void *dest, const void *src, size_t n);
+void *memcpy(void *dest, const void *src, size_t n)
+{
+ void *ret = dest;
+
+ while (n >= 8) {
+ *(uint64_t *)dest = *(uint64_t *)src;
+ dest += 8;
+ src += 8;
+ n -= 8;
+ }
+
+ while (n > 0) {
+ *(uint8_t *)dest = *(uint8_t *)src;
+ dest += 1;
+ src += 1;
+ n -= 1;
+ }
+
+ return ret;
+}