arm: Add aligned-memory aliases to eabi_compat

These are sometimes used by LLVM's code-generator, when it can guarantee that
the memory buffer being passed is aligned on a (4- or 8-byte) boundary. They
can safely be aliased to the unaligned versions.

Signed-off-by: Sam Edwards <CFSworks@gmail.com>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>

diff --git a/arch/arm/lib/eabi_compat.c b/arch/arm/lib/eabi_compat.c
index e4190c0..e6cafcc 100644 (file)
--- a/arch/arm/lib/eabi_compat.c
+++ b/arch/arm/lib/eabi_compat.c
@@ -33,12 +33,24 @@ void __aeabi_memcpy(void *dest, const void *src, size_t n)
        (void) memcpy(dest, src, n);
 }
 
+void __aeabi_memcpy4(void *dest, const void *src, size_t n) __alias(__aeabi_memcpy);
+
+void __aeabi_memcpy8(void *dest, const void *src, size_t n) __alias(__aeabi_memcpy);
+
 void __aeabi_memset(void *dest, size_t n, int c)
 {
        (void) memset(dest, c, n);
 }
 
+void __aeabi_memset4(void *dest, size_t n, int c) __alias(__aeabi_memset);
+
+void __aeabi_memset8(void *dest, size_t n, int c) __alias(__aeabi_memset);
+
 void __aeabi_memclr(void *dest, size_t n)
 {
        (void) memset(dest, 0, n);
 }
+
+void __aeabi_memclr4(void *dest, size_t n) __alias(__aeabi_memclr);
+
+void __aeabi_memclr8(void *dest, size_t n) __alias(__aeabi_memclr);