226 lines
6.5 KiB
Bash
226 lines
6.5 KiB
Bash
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#!/bin/bash
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# Builds protoc executable into target/protoc.exe
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# To be run from Maven.
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# Usage: build-protoc.sh <OS> <ARCH>
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# <OS> and <ARCH> are ${os.detected.name} and ${os.detected.arch} from os-maven-plugin
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OS=$1
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ARCH=$2
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if [[ $# < 2 ]]; then
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echo "No arguments provided. This script is intended to be run from Maven."
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exit 1
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fi
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# Under Cygwin, bash doesn't have these in PATH when called from Maven which
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# runs in Windows version of Java.
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export PATH="/bin:/usr/bin:$PATH"
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############################################################################
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# Helper functions
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############################################################################
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E_PARAM_ERR=98
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E_ASSERT_FAILED=99
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# Usage:
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fail()
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{
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echo "ERROR: $1"
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echo
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exit $E_ASSERT_FAILED
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}
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# Usage: assertEq VAL1 VAL2 $LINENO
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assertEq ()
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{
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lineno=$3
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if [ -z "$lineno" ]; then
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echo "lineno not given"
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exit $E_PARAM_ERR
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fi
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if [[ "$1" != "$2" ]]; then
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echo "Assertion failed: \"$1\" == \"$2\""
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echo "File \"$0\", line $lineno" # Give name of file and line number.
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exit $E_ASSERT_FAILED
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fi
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}
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# Checks the artifact is for the expected architecture
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# Usage: checkArch <path-to-protoc>
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checkArch ()
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{
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echo
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echo "Checking file format ..."
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if [[ "$OS" == windows || "$OS" == linux ]]; then
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format="$(objdump -f "$1" | grep -o "file format .*$" | grep -o "[^ ]*$")"
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echo Format=$format
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if [[ "$OS" == linux ]]; then
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if [[ "$ARCH" == x86_32 ]]; then
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assertEq $format "elf32-i386" $LINENO
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elif [[ "$ARCH" == x86_64 ]]; then
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assertEq $format "elf64-x86-64" $LINENO
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else
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fail "Unsupported arch: $ARCH"
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fi
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else
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# $OS == windows
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if [[ "$ARCH" == x86_32 ]]; then
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assertEq $format "pei-i386" $LINENO
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elif [[ "$ARCH" == x86_64 ]]; then
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assertEq $format "pei-x86-64" $LINENO
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else
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fail "Unsupported arch: $ARCH"
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fi
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fi
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elif [[ "$OS" == osx ]]; then
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format="$(file -b "$1" | grep -o "[^ ]*$")"
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echo Format=$format
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if [[ "$ARCH" == x86_32 ]]; then
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assertEq $format "i386" $LINENO
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elif [[ "$ARCH" == x86_64 ]]; then
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assertEq $format "x86_64" $LINENO
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else
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fail "Unsupported arch: $ARCH"
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fi
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else
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fail "Unsupported system: $OS"
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fi
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echo
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}
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# Checks the dependencies of the artifact. Artifacts should only depend on
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# system libraries.
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# Usage: checkDependencies <path-to-protoc>
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checkDependencies ()
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{
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if [[ "$OS" == windows ]]; then
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dump_cmd='objdump -x '"$1"' | fgrep "DLL Name"'
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white_list="KERNEL32\.dll\|msvcrt\.dll"
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elif [[ "$OS" == linux ]]; then
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dump_cmd='ldd '"$1"
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if [[ "$ARCH" == x86_32 ]]; then
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white_list="linux-gate\.so\.1\|libpthread\.so\.0\|libm\.so\.6\|libc\.so\.6\|ld-linux\.so\.2"
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elif [[ "$ARCH" == x86_64 ]]; then
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white_list="linux-vdso\.so\.1\|libpthread\.so\.0\|libm\.so\.6\|libc\.so\.6\|ld-linux-x86-64\.so\.2"
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fi
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elif [[ "$OS" == osx ]]; then
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dump_cmd='otool -L '"$1"' | fgrep dylib'
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white_list="libz\.1\.dylib\|libstdc++\.6\.dylib\|libSystem\.B\.dylib"
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fi
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if [[ -z "$white_list" || -z "$dump_cmd" ]]; then
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fail "Unsupported platform $OS-$ARCH."
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fi
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echo "Checking for expected dependencies ..."
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eval $dump_cmd | grep -i "$white_list" || fail "doesn't show any expected dependencies"
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echo "Checking for unexpected dependencies ..."
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eval $dump_cmd | grep -i -v "$white_list"
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ret=$?
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if [[ $ret == 0 ]]; then
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fail "found unexpected dependencies (listed above)."
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elif [[ $ret != 1 ]]; then
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fail "Error when checking dependencies."
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fi # grep returns 1 when "not found", which is what we expect
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echo "Dependencies look good."
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echo
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}
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############################################################################
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echo "Building protoc, OS=$OS ARCH=$ARCH"
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# Nested double quotes are unintuitive, but it works.
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cd "$(dirname "$0")"
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WORKING_DIR=$(pwd)
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CONFIGURE_ARGS="--disable-shared"
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MAKE_TARGET="protoc"
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if [[ "$OS" == windows ]]; then
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MAKE_TARGET="${MAKE_TARGET}.exe"
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fi
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# Override the default value set in configure.ac that has '-g' which produces
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# huge binary.
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CXXFLAGS="-DNDEBUG"
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LDFLAGS=""
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if [[ "$(uname)" == CYGWIN* ]]; then
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assertEq "$OS" windows $LINENO
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# Use mingw32 compilers because executables produced by Cygwin compiler
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# always have dependency on Cygwin DLL.
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if [[ "$ARCH" == x86_64 ]]; then
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CONFIGURE_ARGS="$CONFIGURE_ARGS --host=x86_64-w64-mingw32"
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elif [[ "$ARCH" == x86_32 ]]; then
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CONFIGURE_ARGS="$CONFIGURE_ARGS --host=i686-pc-mingw32"
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else
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fail "Unsupported arch by CYGWIN: $ARCH"
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fi
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elif [[ "$(uname)" == MINGW32* ]]; then
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assertEq "$OS" windows $LINENO
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assertEq "$ARCH" x86_32 $LINENO
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elif [[ "$(uname)" == MINGW64* ]]; then
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assertEq "$OS" windows $LINENO
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assertEq "$ARCH" x86_64 $LINENO
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elif [[ "$(uname)" == Linux* ]]; then
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if [[ "$OS" == linux ]]; then
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if [[ "$ARCH" == x86_64 ]]; then
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CXXFLAGS="$CXXFLAGS -m64"
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elif [[ "$ARCH" == x86_32 ]]; then
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CXXFLAGS="$CXXFLAGS -m32"
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else
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fail "Unsupported arch: $ARCH"
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fi
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elif [[ "$OS" == windows ]]; then
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# Cross-compilation for Windows
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# TODO(zhangkun83) MinGW 64 always adds dependency on libwinpthread-1.dll,
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# which is undesirable for repository deployment.
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CONFIGURE_ARGS="$CONFIGURE_ARGS"
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if [[ "$ARCH" == x86_64 ]]; then
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CONFIGURE_ARGS="$CONFIGURE_ARGS --host=x86_64-w64-mingw32"
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elif [[ "$ARCH" == x86_32 ]]; then
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CONFIGURE_ARGS="$CONFIGURE_ARGS --host=i686-w64-mingw32"
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else
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fail "Unsupported arch: $ARCH"
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fi
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else
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fail "Cannot build $OS on $(uname)"
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fi
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elif [[ "$(uname)" == Darwin* ]]; then
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assertEq "$OS" osx $LINENO
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# Make the binary compatible with OSX 10.7 and later
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CXXFLAGS="$CXXFLAGS -mmacosx-version-min=10.7"
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if [[ "$ARCH" == x86_64 ]]; then
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CXXFLAGS="$CXXFLAGS -m64"
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elif [[ "$ARCH" == x86_32 ]]; then
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CXXFLAGS="$CXXFLAGS -m32"
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else
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fail "Unsupported arch: $ARCH"
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fi
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else
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fail "Unsupported system: $(uname)"
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fi
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# Statically link libgcc and libstdc++.
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# -s to produce stripped binary.
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# And they don't work under Mac.
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if [[ "$OS" != osx ]]; then
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LDFLAGS="$LDFLAGS -static-libgcc -static-libstdc++ -s"
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fi
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export CXXFLAGS LDFLAGS
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TARGET_FILE=target/protoc.exe
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cd "$WORKING_DIR"/.. && ./configure $CONFIGURE_ARGS &&
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cd src && make clean && make $MAKE_TARGET &&
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cd "$WORKING_DIR" && mkdir -p target &&
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(cp ../src/protoc $TARGET_FILE || cp ../src/protoc.exe $TARGET_FILE) ||
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exit 1
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if [[ "$OS" == osx ]]; then
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# Since Mac linker doesn't accept "-s", we need to run strip
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strip $TARGET_FILE || exit 1
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fi
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checkArch $TARGET_FILE && checkDependencies $TARGET_FILE
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