Basic loongarch64 support

Just wire things up to make the project buildable
on LoongArch64.

opensslconf.h is taken form riscv64 folder as is,
and is the same as on some other 64 bit architectures.

Refs: https://github.com/libressl/portable/issues/1123
Signed-off-by: Ivan A. Melnikov <iv@altlinux.org>

4 files changed, 54 insertions, 0 deletions

diff --git a/crypto/CMakeLists.txt b/crypto/CMakeLists.txt
index e642b01..a714059 100644
--- a/crypto/CMakeLists.txt
+++ b/crypto/CMakeLists.txt
@@ -774,6 +774,9 @@ elseif(HOST_ARM)
 elseif(HOST_I386)
         target_include_directories(crypto_obj PRIVATE arch/i386/)
         target_include_directories(crypto_obj PRIVATE bn/arch/i386/)
+elseif(HOST_LOONGARCH64)
+        target_include_directories(crypto_obj PRIVATE arch/loongarch64)
+        target_include_directories(crypto_obj PRIVATE bn/arch/loongarch64)
 elseif(HOST_MIPS64)
         target_include_directories(crypto_obj PRIVATE arch/mips64)
         target_include_directories(crypto_obj PRIVATE bn/arch/mips64)
diff --git a/crypto/Makefile.am b/crypto/Makefile.am
index 438da8b..0952494 100644
--- a/crypto/Makefile.am
+++ b/crypto/Makefile.am
@@ -396,6 +396,13 @@ endif
 noinst_HEADERS += arch/i386/crypto_arch.h
 noinst_HEADERS += bn/arch/i386/bn_arch.h
 
+if HOST_LOONGARCH64
+libcrypto_la_CPPFLAGS += -I$(top_srcdir)/crypto/arch/loongarch64/
+libcrypto_la_CPPFLAGS += -I$(top_srcdir)/crypto/bn/arch/loongarch64/
+endif
+noinst_HEADERS += arch/loongarch64/crypto_arch.h
+noinst_HEADERS += bn/arch/loongarch64/bn_arch.h
+
 # XXX - do we still need this?
 if HOST_MIPS
 libcrypto_la_CPPFLAGS += -I$(top_srcdir)/crypto/bn/arch/mips/
diff --git a/crypto/arch/loongarch64/crypto_arch.h b/crypto/arch/loongarch64/crypto_arch.h
new file mode 100644
index 0000000..a3dd98d
--- /dev/null
+++ b/crypto/arch/loongarch64/crypto_arch.h
@@ -0,0 +1,21 @@
+/*      $OpenBSD: crypto_arch.h,v 1.1 2024/08/11 13:02:39 jsing Exp $ */
+/*
+ * Copyright (c) 2024 Joel Sing <jsing@openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef HEADER_CRYPTO_ARCH_H
+#define HEADER_CRYPTO_ARCH_H
+
+#endif
diff --git a/crypto/bn/arch/loongarch64/bn_arch.h b/crypto/bn/arch/loongarch64/bn_arch.h
new file mode 100644
index 0000000..672ac12
--- /dev/null
+++ b/crypto/bn/arch/loongarch64/bn_arch.h
@@ -0,0 +1,23 @@
+/*      $OpenBSD: bn_arch.h,v 1.7 2023/07/09 10:37:32 jsing Exp $ */
+/*
+ * Copyright (c) 2023 Joel Sing <jsing@openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <openssl/bn.h>
+
+#ifndef HEADER_BN_ARCH_H
+#define HEADER_BN_ARCH_H
+
+#endif