cmake: enable SHA assembly on ELF AArch64

Autotools already enables the AArch64 SHA assembly for ELF targets,
while CMake does not enable the corresponding assembly path.

Bring CMake in line with Autotools:

- Enable HOST_ASM_ELF_AARCH64 for ELF AArch64
- Use the existing SHA-1 and SHA-256 assembly sources
- Replace the duplicate SHA-256 entry with the missing SHA-512 source
- Define LIBRESSL_USE_SHA_ASSEMBLY

2 files changed, 5 insertions, 2 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 98a0299..b65b4a2 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -466,7 +466,9 @@ endif()
 
 if(ENABLE_ASM)
         if(CMAKE_C_COMPILER_ABI STREQUAL "ELF")
-                if(HOST_X86_64)
+                if(HOST_AARCH64)
+                        set(HOST_ASM_ELF_AARCH64 true)
+                elseif(HOST_X86_64)
                         set(HOST_ASM_ELF_X86_64 true)
                 elseif(SOLARIS AND HOST_I386)
                         set(HOST_ASM_ELF_X86_64 true)
diff --git a/crypto/CMakeLists.txt b/crypto/CMakeLists.txt
index d566182..491b9b4 100644
--- a/crypto/CMakeLists.txt
+++ b/crypto/CMakeLists.txt
@@ -22,8 +22,9 @@ if(HOST_ASM_ELF_AARCH64)
                 ASM_AARCH64_ELF_SRC
                 sha/sha1_aarch64_ce.S
                 sha/sha256_aarch64_ce.S
-                sha/sha256_aarch64_ce.S
+                sha/sha512_aarch64_ce.S
         )
+        add_definitions(-DLIBRESSL_USE_SHA_ASSEMBLY)
         set(CRYPTO_SRC ${CRYPTO_SRC} ${ASM_AARCH64_ELF_SRC})
 endif()