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#!/usr/bin/env bash
# This script is an experiment on how to build LLVM in Jenkins.
# The steps here are based on the scripts currently in:
# https://git.linaro.org/toolchain/llvm/linaro-scripts.git
set -e
set -o pipefail
# Syntax
SYN_BUILD="--build={ninja|make} (def. make)"
SYN_BUILDTYPE="--buildtype={Release|Debug} (def. Release)"
SYN_ASSERTS="--asserts={True|False} (def. True)"
SYN_SRCDIR="--srcdir=path/to/source"
SYN_BUILDDIR="--builddir=path/to/build"
SYN_INSTDIR="--instdir=path/to/install"
SYN_BUILDJOBS="--buildjobs=N (def. CPUS)"
SYN_LINKJOBS="--linkjobs=N (def. RAM+1)"
SYNTAX="$0 $SYN_BUILD $SYN_ASSERTS $SYN_RELEASETYPE $SYN_SRCDIR $SYN_BUILDDIR $SYN_INSTDIR $SYN_LINKJOBS $SYN_BUILDJOBS"
# Environment Variables and default values
GEN="Unix Makefiles"
BUILD="make"
BUILDTYPE="Release"
ASSERTS="True"
CPUS=$(nproc --all)
SRCDIR=""
BUILDDIR=""
INSTDIR=""
BUILDJOBS=$CPUS
LINKJOBS=$(free -g | awk '/Mem/ {print $2}')
# We don't want more link jobs than CPUs, even if there's plenty of RAM
if [ "$LINKJOBS" -ge "$CPUS" ]; then
LINKJOBS=$CPUS
# We may use between 500MB and 1GB per link job, though
else
LINKJOBS=$((LINKJOBS+1))
fi
# Command line parsing
while [ "$#" -gt 0 ]; do
ARG=$(echo "$1" | cut -d "=" -f 1)
VAL=$(echo "$1" | cut -d "=" -f 2)
case "$ARG" in
--build)
if [ "$VAL" = "ninja" ]; then
GEN="Ninja"
BUILD="ninja"
elif [ "$VAL" != "make" ]; then
echo "ERROR: $1"
echo "Syntax: $SYN_BUILD"
exit 1
fi
shift ;;
--buildtype)
if [ "$VAL" = "Debug" ]; then
BUILDTYPE="$VAL"
elif [ "$VAL" != "Release" ]; then
echo "ERROR: $1"
echo "Syntax: $SYN_BUILDTYPE"
exit 1
fi
shift ;;
--asserts)
if [ "$VAL" = "False" ]; then
ASSERTS="$VAL"
elif [ "$VAL" != "True" ]; then
echo "ERROR: $1"
echo "Syntax: $SYN_ASSERTS"
exit 1
fi
shift ;;
--srcdir)
if [ -d "$VAL" ]; then
SRCDIR="$VAL"
else
echo "ERROR: Source dir '$VAL' doesn't exist"
echo "Syntax: $SYN_SRCDIR"
exit 1
fi
shift ;;
--builddir)
if [ ! -d "$VAL" ] && ! mkdir -p "$VAL"; then
echo "ERROR: Build dir '$VAL' doesn't exist and can't be created"
echo "Syntax: $SYN_BUILDDIR"
exit 1
fi
BUILDDIR="$VAL"
shift ;;
--instdir)
if [ ! -d "$VAL" ] && ! mkdir -p "$VAL"; then
echo "ERROR: Install dir '$VAL' doesn't exist and can't be created"
echo "Syntax: $SYN_INSTDIR"
exit 1
fi
INSTDIR="$VAL"
shift ;;
--buildjobs)
if [ "$VAL" -gt 0 ]; then
BUILDJOBS="$VAL"
else
echo "ERROR: Build jobs '$VAL' not valid"
echo "Syntax: $SYN_BUILDJOBS"
exit 1
fi
shift ;;
--linkjobs)
if [ "$VAL" -gt 0 ]; then
LINKJOBS="$VAL"
else
echo "ERROR: Link jobs '$VAL' not valid"
echo "Syntax: $SYN_LINKJOBS"
exit 1
fi
shift ;;
*)
echo "ERROR: Invalid argument '$1'"
echo "Syntax: $SYNTAX"
exit 1
;;
esac
done
# Validate options
if [ "$GEN" = "" ] || [ "$BUILD" = "" ]; then
echo "ERROR: Missing Generator / Builder"
echo "$SYNTAX"
exit 1
fi
if [ "$BUILDTYPE" = "" ] || [ "$ASSERTS" = "" ]; then
echo "ERROR: Missing build type / asserts option"
echo "$SYNTAX"
exit 1
fi
if [ "$BUILDDIR" = "" ] && [ "$SRCDIR" != "" ]; then
BUILDDIR="$SRCDIR/../build"
if [ ! -d "BUILDDIR" ] && ! mkdir -p "$BUILDDIR"; then
echo "ERROR: Forced build dir '$BUILDDIR' can't be created"
echo "Syntax: $SYN_BUILDDIR"
exit 1
fi
fi
if [ "$INSTDIR" = "" ] && [ "$BUILDDIR" != "" ]; then
INSTDIR="$BUILDDIR/../install"
if [ ! -d "INSTDIR" ] && ! mkdir -p "$INSTDIR"; then
echo "ERROR: Forced install dir '$INSTDIR' can't be created"
echo "Syntax: $SYN_INSTDIR"
exit 1
fi
fi
if [ "$SRCDIR" = "" ] || [ "$BUILDDIR" = "" ] || [ "$INSTDIR" = "" ]; then
echo "ERROR: Missing source / build / install directories"
echo "$SYNTAX"
exit 1
fi
if [ "$LINKJOBS" = "" ] || [ "$BUILDJOBS" = "" ]; then
echo "ERROR: Missing number of build / link jobs"
echo "$SYNTAX"
exit 1
fi
# Dump
echo "GEN = $GEN"
echo "BUILD = $BUILD"
echo "BUILDTYPE = $BUILDTYPE"
echo "ASSERTS = $ASSERTS"
echo "SRCDIR = $SRCDIR"
echo "BUILDDIR = $BUILDDIR"
echo "INSTDIR = $INSTDIR"
echo "BUILDJOBS = $BUILDJOBS"
echo "LINKJOBS = $LINKJOBS"
# Logs
LOGBASE="$SRCDIR/../tcwg-llvm"
LOGEXT="txt"
# Checkout
git clone http://llvm.org/git/llvm.git "$SRCDIR" |& tee "$LOGBASE-clone.$LOGEXT"
git clone http://llvm.org/git/clang.git "$SRCDIR/tools/clang" |& tee -a "$LOGBASE-clone.$LOGEXT"
# CMake
OPTIONS="-DLLVM_BUILD_TESTS=True "
OPTIONS+="-DCMAKE_BUILD_TYPE='$BUILDTYPE' "
OPTIONS+="-DLLVM_ENABLE_ASSERTIONS='$ASSERTS' "
OPTIONS+="-DLLVM_PARALLEL_COMPILE_JOBS='$BUILDJOBS' "
OPTIONS+="-DLLVM_PARALLEL_LINK_JOBS='$LINKJOBS' "
cd "$BUILDDIR" && cmake -G "$GEN" "$SRCDIR" "$OPTIONS" -DLLVM_LIT_ARGS="-sv -j$CPUS" |& tee "$LOGBASE-cmake.$LOGEXT"
# Build + check
cd "$BUILDDIR" && $BUILD "-j$CPUS" |& tee "$LOGBASE-build.$LOGEXT"
cd "$BUILDDIR" && $BUILD "-j$CPUS" check-all |& tee "$LOGBASE-check.$LOGEXT"
cd "$BUILDDIR" && $BUILD "-j$CPUS" DESTDIR="$INSTDIR" install |& tee "$LOGBASE-install.$LOGEXT"
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