ArmPkg/CompilerIntrinsicsLib: replace memcpy and memset with C code

[mirror_edk2.git] / ArmPkg / Library / CompilerIntrinsicsLib / memset.c

diff --git a/ArmPkg/Library/CompilerIntrinsicsLib/memset.c b/ArmPkg/Library/CompilerIntrinsicsLib/memset.c
new file mode 100644 (file)
index 0000000..3d417d7
--- /dev/null
+++ b/ArmPkg/Library/CompilerIntrinsicsLib/memset.c
@@ -0,0 +1,56 @@
+//------------------------------------------------------------------------------
+//
+// Copyright (c) 2016, Linaro Ltd. All rights reserved.<BR>
+//
+// This program and the accompanying materials are licensed and made
+// available under the terms and conditions of the BSD License which
+// accompanies this distribution.  The full text of the license may be
+// found at http://opensource.org/licenses/bsd-license.php
+//
+// THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+// WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR
+// IMPLIED.
+//
+//------------------------------------------------------------------------------
+
+typedef __SIZE_TYPE__ size_t;
+
+static __attribute__((__used__))
+void *__memset(void *s, int c, size_t n)
+{
+  unsigned char *d = s;
+
+  while (n--)
+    *d++ = c;
+
+  return s;
+}
+
+__attribute__((__alias__("__memset")))
+void *memset(void *dest, int c, size_t n);
+
+#ifdef __arm__
+
+void __aeabi_memset(void *dest, size_t n, int c)
+{
+  __memset(dest, c, n);
+}
+
+__attribute__((__alias__("__aeabi_memset")))
+void __aeabi_memset4(void *dest, size_t n, int c);
+
+__attribute__((__alias__("__aeabi_memset")))
+void __aeabi_memset8(void *dest, size_t n, int c);
+
+void __aeabi_memclr(void *dest, size_t n)
+{
+  __memset(dest, 0, n);
+}
+
+__attribute__((__alias__("__aeabi_memclr")))
+void __aeabi_memclr4(void *dest, size_t n);
+
+__attribute__((__alias__("__aeabi_memclr")))
+void __aeabi_memclr8(void *dest, size_t n);
+
+#endif