mirror of
https://github.com/ceph/ceph
synced 2025-02-11 12:59:04 +00:00
3ce1e4a5c6
winpthreads is a library that emulates the pthreads API using Windows primitives. It's also used by the mingw/gcc libstdc++ for std::thread. The issue is that winpthreads isn't well maintained. There have been numerous bugs that haven't been addressed in years. Specifically, we've been hitting deadlocks because of the winpthreads rw lock implementation. This change will allow building Ceph for Windows using mingw/llvm, which uses libc++ and doesn't rely on winpthreads. Signed-off-by: Lucian Petrut <lpetrut@cloudbasesolutions.com>
134 lines
4.9 KiB
Bash
134 lines
4.9 KiB
Bash
#!/usr/bin/env bash
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# MINGW Settings:
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# Due to inconsistencies between distributions, mingw versions, binaries,
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# and directories must be determined (or defined) prior to building.
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# This script expects the following variables:
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# * OS - currently ubuntu, rhel, or suse. In the future we may attempt to
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# detect the platform.
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# * MINGW_CMAKE_FILE - if set, a cmake toolchain file will be created
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# * MINGW_POSIX_FLAGS - if set, Mingw Posix compatibility mode will be
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# enabled by defining the according flags.
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# * USE_MINGW_LLVM - allows using the mingw llvm toolchain
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# * MINGW_LLVM_DIR - allows specifying the mingw-llvm toolchain location.
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# If unset, we'll use the default path from build.deps.
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SCRIPT_DIR="$(dirname "$BASH_SOURCE")"
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SCRIPT_DIR="$(realpath "$SCRIPT_DIR")"
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if [[ -n $USE_MINGW_LLVM ]]; then
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MINGW_LLVM_DIR=${MINGW_LLVM_DIR:-"$SCRIPT_DIR/build.deps/mingw-llvm"}
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fi
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# -Common mingw settings-
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MINGW_PREFIX="x86_64-w64-mingw32-"
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MINGW_BASE="x86_64-w64-mingw32"
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MINGW_CPP="${MINGW_BASE}-c++"
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MINGW_DLLTOOL="${MINGW_BASE}-dlltool"
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MINGW_WINDRES="${MINGW_BASE}-windres"
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MINGW_STRIP="${MINGW_BASE}-strip"
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MINGW_OBJCOPY="${MINGW_BASE}-objcopy"
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if [[ -n $USE_MINGW_LLVM ]]; then
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# This package isn't currently provided by Linux distributions, we're
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# fetching it from Github.
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export PATH="$MINGW_LLVM_DIR/bin:$PATH"
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mingwPosix=""
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mingwVersion="$(${MINGW_CPP}${mingwPosix} -dumpversion)"
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mingwX64IncludeDir="$MINGW_LLVM_DIR/x86_64-w64-mingw32/include"
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mingwX64BinDir="$MINGW_LLVM_DIR/x86_64-w64-mingw32/bin"
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mingwX64LibDir="$MINGW_LLVM_DIR/x86_64-w64-mingw32/lib"
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mingwTargetLibDir="$mingwX64BinDir"
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mingwLibpthreadDir="$mingwX64BinDir"
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PTW32Include="$mingwX64IncludeDir"
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PTW32Lib="$mingwX64LibDir"
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MINGW_CC="${MINGW_BASE}-clang${mingwPosix}"
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MINGW_CXX="${MINGW_BASE}-clang++${mingwPosix}"
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MINGW_FIND_ROOT_PATH="$MINGW_LLVM_DIR/x86_64-w64-mingw32"
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else
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# -Distribution specific mingw settings-
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case "$OS" in
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ubuntu)
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mingwPosix="-posix"
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mingwLibDir="/usr/lib/gcc"
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mingwVersion="$(${MINGW_CPP}${mingwPosix} -dumpversion)"
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mingwTargetLibDir="${mingwLibDir}/${MINGW_BASE}/${mingwVersion}"
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mingwLibpthreadDir="/usr/${MINGW_BASE}/lib"
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PTW32Include=/usr/share/mingw-w64/include
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PTW32Lib=/usr/x86_64-w64-mingw32/lib
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;;
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rhel)
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mingwPosix=""
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mingwLibDir="/usr/lib64/gcc"
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mingwVersion="$(${MINGW_CPP}${mingwPosix} -dumpversion)"
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mingwTargetLibDir="/usr/${MINGW_BASE}/sys-root/mingw/bin"
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mingwLibpthreadDir="$mingwTargetLibDir"
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PTW32Include=/usr/x86_64-w64-mingw32/sys-root/mingw/include
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PTW32Lib=/usr/x86_64-w64-mingw32/sys-root/mingw/lib
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;;
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suse)
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mingwPosix=""
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mingwLibDir="/usr/lib64/gcc"
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mingwVersion="$(${MINGW_CPP}${mingwPosix} -dumpversion)"
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mingwTargetLibDir="/usr/${MINGW_BASE}/sys-root/mingw/bin"
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mingwLibpthreadDir="$mingwTargetLibDir"
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PTW32Include=/usr/x86_64-w64-mingw32/sys-root/mingw/include
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PTW32Lib=/usr/x86_64-w64-mingw32/sys-root/mingw/lib
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;;
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*)
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echo "$ID is unknown, automatic mingw configuration is not possible."
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exit 1
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;;
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esac
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MINGW_CC="${MINGW_BASE}-gcc${mingwPosix}"
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MINGW_CXX="${MINGW_BASE}-g++${mingwPosix}"
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# -Common mingw settings, dependent upon distribution specific settings-
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MINGW_FIND_ROOT_LIB_PATH="${mingwLibDir}/${MINGW_BASE}/${mingwVersion}"
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MINGW_FIND_ROOT_PATH="/usr/${MINGW_BASE} ${MINGW_FIND_ROOT_LIB_PATH}"
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fi
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# End MINGW configuration
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if [[ -n $MINGW_CMAKE_FILE ]]; then
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cat > $MINGW_CMAKE_FILE <<EOL
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set(CMAKE_SYSTEM_NAME Windows)
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set(CMAKE_SYSTEM_PROCESSOR x86_64)
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# We'll need to use posix threads in order to use
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# C++11 features, such as std::thread.
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set(CMAKE_C_COMPILER ${MINGW_CC})
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set(CMAKE_CXX_COMPILER ${MINGW_CXX})
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set(CMAKE_RC_COMPILER ${MINGW_WINDRES})
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set(CMAKE_FIND_ROOT_PATH ${MINGW_FIND_ROOT_PATH})
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set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
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# TODO: consider switching this to "ONLY". The issue with
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# that is that all our libs should then be under
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# CMAKE_FIND_ROOT_PATH and CMAKE_PREFIX_PATH would be ignored.
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set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY BOTH)
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set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE BOTH)
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EOL
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if [[ -n $MINGW_POSIX_FLAGS ]]; then
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cat >> $MINGW_CMAKE_FILE <<EOL
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# Some functions (e.g. localtime_r) will not be available unless we set
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# the following flag.
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add_definitions(-D_POSIX=1)
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add_definitions(-D_POSIX_C_SOURCE=1)
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add_definitions(-D_POSIX_=1)
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add_definitions(-D_POSIX_THREADS=1)
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EOL
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fi
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if [[ -n $USE_MINGW_LLVM ]]; then
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cat >> $MINGW_CMAKE_FILE <<EOL
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add_definitions(-I$mingwX64IncludeDir)
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add_definitions(-march=native)
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add_definitions(-Wno-unknown-attributes)
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EOL
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fi
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fi
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