From 3531763af72712ba96bd810728c338ebf7250194 Mon Sep 17 00:00:00 2001
From: Joel Sing <joel@sing.id.au>
Date: Mon, 19 Jan 2026 23:51:03 +1100
Subject: Enable SHA assembly for elf-aarch64

---
 configure.ac                   |  2 ++
 crypto/CMakeLists.txt          | 12 ++++++++++++
 crypto/Makefile.am             |  3 +++
 crypto/Makefile.am.elf-aarch64 | 15 +++++++++++++++
 4 files changed, 32 insertions(+)
 create mode 100644 crypto/Makefile.am.elf-aarch64

diff --git a/configure.ac b/configure.ac
index 8d347b0..eb2b9ce 100644
--- a/configure.ac
+++ b/configure.ac
@@ -115,6 +115,8 @@ AC_ARG_ENABLE([asm], AS_HELP_STRING([--disable-asm], [Disable assembly]))
 AM_CONDITIONAL([OPENSSL_NO_ASM], [test "x$enable_asm" = "xno"])
 
 # Conditionally enable assembly by default
+AM_CONDITIONAL([HOST_ASM_ELF_AARCH64],
+    [test "x$HOST_ABI" = "xelf" -a "$host_cpu" = "aarch64" -a "x$enable_asm" != "xno"])
 AM_CONDITIONAL([HOST_ASM_ELF_MIPS],
     [test "x$HOST_ABI" = "xelf" -a "$host_cpu" = "mips" -a "x$enable_asm" != "xno"])
 AM_CONDITIONAL([HOST_ASM_ELF_MIPS64],
diff --git a/crypto/CMakeLists.txt b/crypto/CMakeLists.txt
index 2723d4c..d566182 100644
--- a/crypto/CMakeLists.txt
+++ b/crypto/CMakeLists.txt
@@ -15,6 +15,18 @@
 
 add_definitions(-DLIBRESSL_CRYPTO_INTERNAL)
 
+if(HOST_ASM_ELF_AARCH64)
+	set(CRYPTO_SRC ${CRYPTO_SRC} sha/sha1_aarch64.c sha/sha256_aarch64.c sha/sha512_aarch64.c)
+
+	set(
+		ASM_AARCH64_ELF_SRC
+		sha/sha1_aarch64_ce.S
+		sha/sha256_aarch64_ce.S
+		sha/sha256_aarch64_ce.S
+	)
+	set(CRYPTO_SRC ${CRYPTO_SRC} ${ASM_AARCH64_ELF_SRC})
+endif()
+
 if(HOST_ASM_ELF_X86_64)
 	set(CRYPTO_SRC ${CRYPTO_SRC} aes/aes_amd64.c)
 	set(CRYPTO_SRC ${CRYPTO_SRC} bn/arch/amd64/bn_arch.c)
diff --git a/crypto/Makefile.am b/crypto/Makefile.am
index 1acf0f4..b03347a 100644
--- a/crypto/Makefile.am
+++ b/crypto/Makefile.am
@@ -205,6 +205,7 @@ include Makefile.am.arc4random
 libcrypto_la_SOURCES =
 EXTRA_libcrypto_la_SOURCES =
 
+include Makefile.am.elf-aarch64
 include Makefile.am.elf-mips
 include Makefile.am.elf-mips64
 include Makefile.am.elf-x86_64
@@ -212,6 +213,7 @@ include Makefile.am.macosx-x86_64
 include Makefile.am.masm-x86_64
 include Makefile.am.mingw64-x86_64
 
+if !HOST_ASM_ELF_AARCH64
 if !HOST_ASM_ELF_MIPS
 if !HOST_ASM_ELF_MIPS64
 if !HOST_ASM_ELF_X86_64
@@ -225,6 +227,7 @@ endif
 endif
 endif
 endif
+endif
 
 if HOST_AARCH64
 if HOST_DARWIN
diff --git a/crypto/Makefile.am.elf-aarch64 b/crypto/Makefile.am.elf-aarch64
new file mode 100644
index 0000000..650e6c6
--- /dev/null
+++ b/crypto/Makefile.am.elf-aarch64
@@ -0,0 +1,15 @@
+ASM_AARCH64_ELF = sha/sha1_aarch64_ce.S
+ASM_AARCH64_ELF += sha/sha256_aarch64_ce.S
+ASM_AARCH64_ELF += sha/sha512_aarch64_ce.S
+
+EXTRA_DIST += $(ASM_AARCH64_ELF)
+
+if HOST_ASM_ELF_AARCH64
+libcrypto_la_SOURCES += sha/sha1_aarch64.c
+libcrypto_la_SOURCES += sha/sha256_aarch64.c
+libcrypto_la_SOURCES += sha/sha512_aarch64.c
+
+libcrypto_la_CPPFLAGS += -DLIBRESSL_USE_SHA_ASSEMBLY
+
+libcrypto_la_SOURCES += $(ASM_AARCH64_ELF)
+endif
-- 
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