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| author | Oliver Smith-Denny <osde@linux.microsoft.com> | 2024-08-05 10:25:07 -0700 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2024-09-12 19:36:59 +0000 |
| commit | 8f74b95a21cf106fa4eb4932e22b404c57297ba2 (patch) | |
| tree | 378f21f82997945b07d8149d79f12cf059342aa8 /MdePkg/Library/CompilerIntrinsicsLib/memcpy.c | |
| parent | 734e71f428a4fdac5d82ae9c093911053356f6ff (diff) | |
| download | edk2-8f74b95a21cf106fa4eb4932e22b404c57297ba2.tar.gz edk2-8f74b95a21cf106fa4eb4932e22b404c57297ba2.tar.bz2 edk2-8f74b95a21cf106fa4eb4932e22b404c57297ba2.zip | |
MdePkg: Move CompilerIntrinsicsLib from ArmPkg
As per the emailed RFC in
https://edk2.groups.io/g/devel/topic/rfc_move/107675828,
this patch moves CompilerIntrinsicsLib from ArmPkg to
MdePkg as this library provides compiler intrinsics, which
are industry standard.
This aligns with the goal of integrating ArmPkg into existing
packages: https://bugzilla.tianocore.org/show_bug.cgi?id=4121.
The newly placed CompilerIntrinsicsLib is added to MdeLibs.dsc.inc
as every DSC that builds ARM/AARCH64 needs this library added. The
old location is removed from every DSC in edk2 in this commit also
to not break bisectability with minimal hoop jumping.
Continuous-integration-options: PatchCheck.ignore-multi-package
Signed-off-by: Oliver Smith-Denny <osde@linux.microsoft.com>
Diffstat (limited to 'MdePkg/Library/CompilerIntrinsicsLib/memcpy.c')
| -rw-r--r-- | MdePkg/Library/CompilerIntrinsicsLib/memcpy.c | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/MdePkg/Library/CompilerIntrinsicsLib/memcpy.c b/MdePkg/Library/CompilerIntrinsicsLib/memcpy.c new file mode 100644 index 0000000000..415146f7f2 --- /dev/null +++ b/MdePkg/Library/CompilerIntrinsicsLib/memcpy.c @@ -0,0 +1,67 @@ +// ------------------------------------------------------------------------------
+//
+// Copyright (c) 2016, Linaro Ltd. All rights reserved.<BR>
+// Copyright (c) 2021, Arm Limited. All rights reserved.<BR>
+//
+// SPDX-License-Identifier: BSD-2-Clause-Patent
+//
+// ------------------------------------------------------------------------------
+
+typedef __SIZE_TYPE__ size_t;
+
+static void
+__memcpy (
+ void *dest,
+ const void *src,
+ size_t n
+ )
+{
+ unsigned char *d;
+ unsigned char const *s;
+
+ d = dest;
+ s = src;
+
+ while (n-- != 0) {
+ *d++ = *s++;
+ }
+}
+
+void *
+memcpy (
+ void *dest,
+ const void *src,
+ size_t n
+ )
+{
+ __memcpy (dest, src, n);
+ return dest;
+}
+
+#ifdef __arm__
+
+__attribute__ ((__alias__ ("__memcpy")))
+void
+__aeabi_memcpy (
+ void *dest,
+ const void *src,
+ size_t n
+ );
+
+__attribute__ ((__alias__ ("__memcpy")))
+void
+__aeabi_memcpy4 (
+ void *dest,
+ const void *src,
+ size_t n
+ );
+
+__attribute__ ((__alias__ ("__memcpy")))
+void
+__aeabi_memcpy8 (
+ void *dest,
+ const void *src,
+ size_t n
+ );
+
+#endif
|