arch/arm/eabi_compat.c: Add eabi_clrX and eabi_memcyX

Clang generated code uses this for zero initialized variables.

Change-Id: I460a0096918141c1cf8826bdf1853a3aa3aecff8
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/69743
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin L Roth <gaumless@gmail.com>

1 files changed, 23 insertions, 0 deletions

diff --git a/src/arch/arm/eabi_compat.c b/src/arch/arm/eabi_compat.c
index 2a110d5ccf..849fc6507f 100644
--- a/src/arch/arm/eabi_compat.c
+++ b/src/arch/arm/eabi_compat.c
@@ -23,6 +23,14 @@ void __aeabi_unwind_cpp_pr1(void)
 {
 }
 
+/* Support the alias for the __aeabi_memcpy which may
+   assume memory alignment.  */
+void __aeabi_memcpy4(void *dest, const void *src, size_t n)
+	__attribute((alias("__aeabi_memcpy")));
+
+void __aeabi_memcpy8(void *dest, const void *src, size_t n)
+	__attribute((alias("__aeabi_memcpy")));
+
 void __aeabi_memcpy(void *dest, const void *src, size_t n);
 void __aeabi_memcpy(void *dest, const void *src, size_t n)
 {
@@ -34,3 +42,18 @@ void __aeabi_memset(void *dest, size_t n, int c)
 {
 	(void)memset(dest, c, n);
 }
+
+/* Support the alias for the __aeabi_memclr which may
+   assume memory alignment.  */
+void __aeabi_memclr4(void *dest, size_t n)
+	__attribute((alias("__aeabi_memclr")));
+
+void __aeabi_memclr8(void *dest, size_t n)
+	__attribute((alias("__aeabi_memclr")));
+
+/* Support the routine __aeabi_memclr.  */
+void __aeabi_memclr(void *dest, size_t n);
+void __aeabi_memclr(void *dest, size_t n)
+{
+	__aeabi_memset(dest, n, 0);
+}