From 1f0a78edf3cd2c24236ac512acf420eb9ed86ab3 Mon Sep 17 00:00:00 2001
From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com>
Date: Thu, 4 Jul 2024 00:29:33 +0100
Subject: [PATCH] cmake: Build `minisketch` static library

---
 CMakeLists.txt         |  1 +
 cmake/minisketch.cmake | 91 ++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 92 insertions(+)
 create mode 100644 cmake/minisketch.cmake

diff --git a/CMakeLists.txt b/CMakeLists.txt
index c9e026fa6dc..513bdeda4ff 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -211,6 +211,7 @@ set(CMAKE_SKIP_BUILD_RPATH TRUE)
 set(CMAKE_SKIP_INSTALL_RPATH TRUE)
 include(cmake/crc32c.cmake)
 include(cmake/leveldb.cmake)
+include(cmake/minisketch.cmake)
 add_subdirectory(src)
 
 message("\n")
diff --git a/cmake/minisketch.cmake b/cmake/minisketch.cmake
new file mode 100644
index 00000000000..bb93c804672
--- /dev/null
+++ b/cmake/minisketch.cmake
@@ -0,0 +1,91 @@
+# Copyright (c) 2023-present The Bitcoin Core developers
+# Distributed under the MIT software license, see the accompanying
+# file COPYING or https://opensource.org/license/mit/.
+
+# Check for clmul instructions support.
+if(MSVC)
+  set(CLMUL_CXXFLAGS)
+else()
+  set(CLMUL_CXXFLAGS -mpclmul)
+endif()
+check_cxx_source_compiles_with_flags("${CLMUL_CXXFLAGS}" "
+  #include <immintrin.h>
+  #include <cstdint>
+
+  int main()
+  {
+    __m128i a = _mm_cvtsi64_si128((uint64_t)7);
+    __m128i b = _mm_clmulepi64_si128(a, a, 37);
+    __m128i c = _mm_srli_epi64(b, 41);
+    __m128i d = _mm_xor_si128(b, c);
+    uint64_t e = _mm_cvtsi128_si64(d);
+    return e == 0;
+  }
+  " HAVE_CLMUL
+)
+
+add_library(minisketch_common INTERFACE)
+target_compile_definitions(minisketch_common INTERFACE
+  DISABLE_DEFAULT_FIELDS
+  ENABLE_FIELD_32
+)
+if(MSVC)
+  target_compile_options(minisketch_common INTERFACE
+    /wd4060
+    /wd4065
+    /wd4146
+    /wd4244
+    /wd4267
+  )
+endif()
+
+if(HAVE_CLMUL)
+  add_library(minisketch_clmul OBJECT EXCLUDE_FROM_ALL
+    ${PROJECT_SOURCE_DIR}/src/minisketch/src/fields/clmul_1byte.cpp
+    ${PROJECT_SOURCE_DIR}/src/minisketch/src/fields/clmul_2bytes.cpp
+    ${PROJECT_SOURCE_DIR}/src/minisketch/src/fields/clmul_3bytes.cpp
+    ${PROJECT_SOURCE_DIR}/src/minisketch/src/fields/clmul_4bytes.cpp
+    ${PROJECT_SOURCE_DIR}/src/minisketch/src/fields/clmul_5bytes.cpp
+    ${PROJECT_SOURCE_DIR}/src/minisketch/src/fields/clmul_6bytes.cpp
+    ${PROJECT_SOURCE_DIR}/src/minisketch/src/fields/clmul_7bytes.cpp
+    ${PROJECT_SOURCE_DIR}/src/minisketch/src/fields/clmul_8bytes.cpp
+  )
+  target_compile_definitions(minisketch_clmul PUBLIC HAVE_CLMUL)
+  target_compile_options(minisketch_clmul PRIVATE ${CLMUL_CXXFLAGS})
+  target_link_libraries(minisketch_clmul
+    PRIVATE
+      core_interface
+      minisketch_common
+  )
+  set_target_properties(minisketch_clmul PROPERTIES
+    EXPORT_COMPILE_COMMANDS OFF
+  )
+endif()
+
+add_library(minisketch STATIC EXCLUDE_FROM_ALL
+  ${PROJECT_SOURCE_DIR}/src/minisketch/src/minisketch.cpp
+  ${PROJECT_SOURCE_DIR}/src/minisketch/src/fields/generic_1byte.cpp
+  ${PROJECT_SOURCE_DIR}/src/minisketch/src/fields/generic_2bytes.cpp
+  ${PROJECT_SOURCE_DIR}/src/minisketch/src/fields/generic_3bytes.cpp
+  ${PROJECT_SOURCE_DIR}/src/minisketch/src/fields/generic_4bytes.cpp
+  ${PROJECT_SOURCE_DIR}/src/minisketch/src/fields/generic_5bytes.cpp
+  ${PROJECT_SOURCE_DIR}/src/minisketch/src/fields/generic_6bytes.cpp
+  ${PROJECT_SOURCE_DIR}/src/minisketch/src/fields/generic_7bytes.cpp
+  ${PROJECT_SOURCE_DIR}/src/minisketch/src/fields/generic_8bytes.cpp
+)
+
+target_include_directories(minisketch
+  PUBLIC
+    $<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/src/minisketch/include>
+)
+
+target_link_libraries(minisketch
+  PRIVATE
+    core_interface
+    minisketch_common
+    $<TARGET_NAME_IF_EXISTS:minisketch_clmul>
+)
+
+set_target_properties(minisketch PROPERTIES
+  EXPORT_COMPILE_COMMANDS OFF
+)