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-rw-r--r--deps/chromium-zlib/CMakeLists.txt101
1 files changed, 101 insertions, 0 deletions
diff --git a/deps/chromium-zlib/CMakeLists.txt b/deps/chromium-zlib/CMakeLists.txt
new file mode 100644
index 000000000..bbb35d4e6
--- /dev/null
+++ b/deps/chromium-zlib/CMakeLists.txt
@@ -0,0 +1,101 @@
+# CMake build script for the bundled Chromium zlib implementation. So far, it
+# is only supported for x86_64 processors with CLMUL, SSE3, SSE4.2.
+#
+# TODO: The Chromium build file (in deps/chromium-zlib/zlib/BUILD.gn) supports
+# more platforms (like ARM with NEON), more can be enabled as needed.
+
+CMAKE_MINIMUM_REQUIRED(VERSION 3.11)
+
+include(FetchContent)
+include(FindGit)
+
+# Ensure that the git binary is present to download the sources.
+find_package(Git)
+IF(NOT Git_FOUND)
+ message(FATAL_ERROR "git is required to download the Chromium zlib sources")
+ENDIF()
+
+FetchContent_Populate(chromium_zlib_src
+ GIT_REPOSITORY https://chromium.googlesource.com/chromium/src/third_party/zlib.git
+ GIT_TAG 2c183c9f93a328bfb3121284da13cf89a0f7e64a
+ QUIET
+)
+
+# The Chromium build globally disables some warnings.
+disable_warnings(implicit-fallthrough)
+disable_warnings(unused-function)
+disable_warnings(unused-parameter)
+disable_warnings(sign-compare)
+disable_warnings(declaration-after-statement)
+disable_warnings(missing-declarations)
+
+# -O3 is also set by the Chromium configuration and has been deemed safe enough
+# for them.
+SET(CMAKE_C_FLAGS_RELWITHDEBINFO "-O3 -g -DNDEBUG")
+SET(CMAKE_C_FLAGS_RELEASE "-O3 -DNDEBUG")
+
+# Common definitions.
+add_definitions(
+ -DSTDC
+ -DNO_GZIP
+ -DZLIB_IMPLEMENTATION
+)
+list(APPEND SRC_ZLIB
+ "${chromium_zlib_src_SOURCE_DIR}/adler32.c"
+ "${chromium_zlib_src_SOURCE_DIR}/chromeconf.h"
+ "${chromium_zlib_src_SOURCE_DIR}/compress.c"
+ "${chromium_zlib_src_SOURCE_DIR}/contrib/optimizations/insert_string.h"
+ "${chromium_zlib_src_SOURCE_DIR}/cpu_features.c"
+ "${chromium_zlib_src_SOURCE_DIR}/cpu_features.h"
+ "${chromium_zlib_src_SOURCE_DIR}/crc32.c"
+ "${chromium_zlib_src_SOURCE_DIR}/crc32.h"
+ "${chromium_zlib_src_SOURCE_DIR}/deflate.c"
+ "${chromium_zlib_src_SOURCE_DIR}/deflate.h"
+ "${chromium_zlib_src_SOURCE_DIR}/gzclose.c"
+ "${chromium_zlib_src_SOURCE_DIR}/gzguts.h"
+ "${chromium_zlib_src_SOURCE_DIR}/gzlib.c"
+ "${chromium_zlib_src_SOURCE_DIR}/gzread.c"
+ "${chromium_zlib_src_SOURCE_DIR}/gzwrite.c"
+ "${chromium_zlib_src_SOURCE_DIR}/infback.c"
+ "${chromium_zlib_src_SOURCE_DIR}/inffast.c"
+ "${chromium_zlib_src_SOURCE_DIR}/inffast.h"
+ "${chromium_zlib_src_SOURCE_DIR}/inffixed.h"
+ "${chromium_zlib_src_SOURCE_DIR}/inflate.h"
+ "${chromium_zlib_src_SOURCE_DIR}/inftrees.c"
+ "${chromium_zlib_src_SOURCE_DIR}/inftrees.h"
+ "${chromium_zlib_src_SOURCE_DIR}/trees.c"
+ "${chromium_zlib_src_SOURCE_DIR}/trees.h"
+ "${chromium_zlib_src_SOURCE_DIR}/uncompr.c"
+ "${chromium_zlib_src_SOURCE_DIR}/zconf.h"
+ "${chromium_zlib_src_SOURCE_DIR}/zlib.h"
+ "${chromium_zlib_src_SOURCE_DIR}/zutil.c"
+ "${chromium_zlib_src_SOURCE_DIR}/zutil.h"
+)
+
+# x86_64-specific optimizations
+string(APPEND CMAKE_C_FLAGS " -mssse3 -msse4.2 -mpclmul")
+add_definitions(
+ -DCHROMIUM_ZLIB_NO_CHROMECONF
+ -DX86_NOT_WINDOWS
+ -DADLER32_SIMD_SSSE3
+ -DCRC32_SIMD_SSE42_PCLMUL
+ -DDEFLATE_FILL_WINDOW_SSE2
+ -DINFLATE_CHUNK_READ_64LE
+ -DINFLATE_CHUNK_SIMD_SSE2
+)
+list(APPEND SRC_ZLIB
+ "${chromium_zlib_src_SOURCE_DIR}/adler32_simd.c"
+ "${chromium_zlib_src_SOURCE_DIR}/adler32_simd.h"
+ "${chromium_zlib_src_SOURCE_DIR}/contrib/optimizations/chunkcopy.h"
+ "${chromium_zlib_src_SOURCE_DIR}/contrib/optimizations/inffast_chunk.c"
+ "${chromium_zlib_src_SOURCE_DIR}/contrib/optimizations/inffast_chunk.h"
+ "${chromium_zlib_src_SOURCE_DIR}/contrib/optimizations/inflate.c"
+ "${chromium_zlib_src_SOURCE_DIR}/crc32_simd.c"
+ "${chromium_zlib_src_SOURCE_DIR}/crc32_simd.h"
+ "${chromium_zlib_src_SOURCE_DIR}/crc_folding.c"
+ "${chromium_zlib_src_SOURCE_DIR}/fill_window_sse.c"
+)
+
+list(SORT SRC_ZLIB)
+include_directories("${chromium_zlib_src_SOURCE_DIR}")
+add_library(chromium_zlib OBJECT ${SRC_ZLIB})