Squashed 'third_party/protobuf/' content from commit e35e248
Change-Id: I6cbe123d09fe50fdcad0e51466665daeee7433c7
git-subtree-dir: third_party/protobuf
git-subtree-split: e35e24800fb8d694bdeea5fd63dc7d1b14d68723
diff --git a/protoc-artifacts/build-protoc.sh b/protoc-artifacts/build-protoc.sh
new file mode 100755
index 0000000..2f67c50
--- /dev/null
+++ b/protoc-artifacts/build-protoc.sh
@@ -0,0 +1,225 @@
+#!/bin/bash
+
+# Builds protoc executable into target/protoc.exe
+# To be run from Maven.
+# Usage: build-protoc.sh <OS> <ARCH>
+# <OS> and <ARCH> are ${os.detected.name} and ${os.detected.arch} from os-maven-plugin
+OS=$1
+ARCH=$2
+
+if [[ $# < 2 ]]; then
+ echo "No arguments provided. This script is intended to be run from Maven."
+ exit 1
+fi
+
+# Under Cygwin, bash doesn't have these in PATH when called from Maven which
+# runs in Windows version of Java.
+export PATH="/bin:/usr/bin:$PATH"
+
+############################################################################
+# Helper functions
+############################################################################
+E_PARAM_ERR=98
+E_ASSERT_FAILED=99
+
+# Usage:
+fail()
+{
+ echo "ERROR: $1"
+ echo
+ exit $E_ASSERT_FAILED
+}
+
+# Usage: assertEq VAL1 VAL2 $LINENO
+assertEq ()
+{
+ lineno=$3
+ if [ -z "$lineno" ]; then
+ echo "lineno not given"
+ exit $E_PARAM_ERR
+ fi
+
+ if [[ "$1" != "$2" ]]; then
+ echo "Assertion failed: \"$1\" == \"$2\""
+ echo "File \"$0\", line $lineno" # Give name of file and line number.
+ exit $E_ASSERT_FAILED
+ fi
+}
+
+# Checks the artifact is for the expected architecture
+# Usage: checkArch <path-to-protoc>
+checkArch ()
+{
+ echo
+ echo "Checking file format ..."
+ if [[ "$OS" == windows || "$OS" == linux ]]; then
+ format="$(objdump -f "$1" | grep -o "file format .*$" | grep -o "[^ ]*$")"
+ echo Format=$format
+ if [[ "$OS" == linux ]]; then
+ if [[ "$ARCH" == x86_32 ]]; then
+ assertEq $format "elf32-i386" $LINENO
+ elif [[ "$ARCH" == x86_64 ]]; then
+ assertEq $format "elf64-x86-64" $LINENO
+ else
+ fail "Unsupported arch: $ARCH"
+ fi
+ else
+ # $OS == windows
+ if [[ "$ARCH" == x86_32 ]]; then
+ assertEq $format "pei-i386" $LINENO
+ elif [[ "$ARCH" == x86_64 ]]; then
+ assertEq $format "pei-x86-64" $LINENO
+ else
+ fail "Unsupported arch: $ARCH"
+ fi
+ fi
+ elif [[ "$OS" == osx ]]; then
+ format="$(file -b "$1" | grep -o "[^ ]*$")"
+ echo Format=$format
+ if [[ "$ARCH" == x86_32 ]]; then
+ assertEq $format "i386" $LINENO
+ elif [[ "$ARCH" == x86_64 ]]; then
+ assertEq $format "x86_64" $LINENO
+ else
+ fail "Unsupported arch: $ARCH"
+ fi
+ else
+ fail "Unsupported system: $OS"
+ fi
+ echo
+}
+
+# Checks the dependencies of the artifact. Artifacts should only depend on
+# system libraries.
+# Usage: checkDependencies <path-to-protoc>
+checkDependencies ()
+{
+ if [[ "$OS" == windows ]]; then
+ dump_cmd='objdump -x '"$1"' | fgrep "DLL Name"'
+ white_list="KERNEL32\.dll\|msvcrt\.dll"
+ elif [[ "$OS" == linux ]]; then
+ dump_cmd='ldd '"$1"
+ if [[ "$ARCH" == x86_32 ]]; then
+ white_list="linux-gate\.so\.1\|libpthread\.so\.0\|libm\.so\.6\|libc\.so\.6\|ld-linux\.so\.2"
+ elif [[ "$ARCH" == x86_64 ]]; then
+ white_list="linux-vdso\.so\.1\|libpthread\.so\.0\|libm\.so\.6\|libc\.so\.6\|ld-linux-x86-64\.so\.2"
+ fi
+ elif [[ "$OS" == osx ]]; then
+ dump_cmd='otool -L '"$1"' | fgrep dylib'
+ white_list="libz\.1\.dylib\|libstdc++\.6\.dylib\|libSystem\.B\.dylib"
+ fi
+ if [[ -z "$white_list" || -z "$dump_cmd" ]]; then
+ fail "Unsupported platform $OS-$ARCH."
+ fi
+ echo "Checking for expected dependencies ..."
+ eval $dump_cmd | grep -i "$white_list" || fail "doesn't show any expected dependencies"
+ echo "Checking for unexpected dependencies ..."
+ eval $dump_cmd | grep -i -v "$white_list"
+ ret=$?
+ if [[ $ret == 0 ]]; then
+ fail "found unexpected dependencies (listed above)."
+ elif [[ $ret != 1 ]]; then
+ fail "Error when checking dependencies."
+ fi # grep returns 1 when "not found", which is what we expect
+ echo "Dependencies look good."
+ echo
+}
+############################################################################
+
+echo "Building protoc, OS=$OS ARCH=$ARCH"
+
+# Nested double quotes are unintuitive, but it works.
+cd "$(dirname "$0")"
+
+WORKING_DIR=$(pwd)
+CONFIGURE_ARGS="--disable-shared"
+
+MAKE_TARGET="protoc"
+if [[ "$OS" == windows ]]; then
+ MAKE_TARGET="${MAKE_TARGET}.exe"
+fi
+
+# Override the default value set in configure.ac that has '-g' which produces
+# huge binary.
+CXXFLAGS="-DNDEBUG"
+LDFLAGS=""
+
+if [[ "$(uname)" == CYGWIN* ]]; then
+ assertEq "$OS" windows $LINENO
+ # Use mingw32 compilers because executables produced by Cygwin compiler
+ # always have dependency on Cygwin DLL.
+ if [[ "$ARCH" == x86_64 ]]; then
+ CONFIGURE_ARGS="$CONFIGURE_ARGS --host=x86_64-w64-mingw32"
+ elif [[ "$ARCH" == x86_32 ]]; then
+ CONFIGURE_ARGS="$CONFIGURE_ARGS --host=i686-pc-mingw32"
+ else
+ fail "Unsupported arch by CYGWIN: $ARCH"
+ fi
+elif [[ "$(uname)" == MINGW32* ]]; then
+ assertEq "$OS" windows $LINENO
+ assertEq "$ARCH" x86_32 $LINENO
+elif [[ "$(uname)" == MINGW64* ]]; then
+ assertEq "$OS" windows $LINENO
+ assertEq "$ARCH" x86_64 $LINENO
+elif [[ "$(uname)" == Linux* ]]; then
+ if [[ "$OS" == linux ]]; then
+ if [[ "$ARCH" == x86_64 ]]; then
+ CXXFLAGS="$CXXFLAGS -m64"
+ elif [[ "$ARCH" == x86_32 ]]; then
+ CXXFLAGS="$CXXFLAGS -m32"
+ else
+ fail "Unsupported arch: $ARCH"
+ fi
+ elif [[ "$OS" == windows ]]; then
+ # Cross-compilation for Windows
+ # TODO(zhangkun83) MinGW 64 always adds dependency on libwinpthread-1.dll,
+ # which is undesirable for repository deployment.
+ CONFIGURE_ARGS="$CONFIGURE_ARGS"
+ if [[ "$ARCH" == x86_64 ]]; then
+ CONFIGURE_ARGS="$CONFIGURE_ARGS --host=x86_64-w64-mingw32"
+ elif [[ "$ARCH" == x86_32 ]]; then
+ CONFIGURE_ARGS="$CONFIGURE_ARGS --host=i686-w64-mingw32"
+ else
+ fail "Unsupported arch: $ARCH"
+ fi
+ else
+ fail "Cannot build $OS on $(uname)"
+ fi
+elif [[ "$(uname)" == Darwin* ]]; then
+ assertEq "$OS" osx $LINENO
+ # Make the binary compatible with OSX 10.7 and later
+ CXXFLAGS="$CXXFLAGS -mmacosx-version-min=10.7"
+ if [[ "$ARCH" == x86_64 ]]; then
+ CXXFLAGS="$CXXFLAGS -m64"
+ elif [[ "$ARCH" == x86_32 ]]; then
+ CXXFLAGS="$CXXFLAGS -m32"
+ else
+ fail "Unsupported arch: $ARCH"
+ fi
+else
+ fail "Unsupported system: $(uname)"
+fi
+
+# Statically link libgcc and libstdc++.
+# -s to produce stripped binary.
+# And they don't work under Mac.
+if [[ "$OS" != osx ]]; then
+ LDFLAGS="$LDFLAGS -static-libgcc -static-libstdc++ -s"
+fi
+
+export CXXFLAGS LDFLAGS
+
+TARGET_FILE=target/protoc.exe
+
+cd "$WORKING_DIR"/.. && ./configure $CONFIGURE_ARGS &&
+ cd src && make clean && make google/protobuf/stubs/pbconfig.h $MAKE_TARGET &&
+ cd "$WORKING_DIR" && mkdir -p target &&
+ (cp ../src/protoc $TARGET_FILE || cp ../src/protoc.exe $TARGET_FILE) ||
+ exit 1
+
+if [[ "$OS" == osx ]]; then
+ # Since Mac linker doesn't accept "-s", we need to run strip
+ strip $TARGET_FILE || exit 1
+fi
+
+checkArch $TARGET_FILE && checkDependencies $TARGET_FILE