5ba302fdea
Allows instrumentation of Minix components using LLVM passes from
"llvm-apps" repository
In addition, the change does the following:
1. Move releasetools/generate_gold_plugin.sh to minix/llvm
2. Move external/bsd/llvm/passes to minix/llvm/passes
3. libLTO.so, LLVMgold.so and WeakAliasModuleOverride.so files
now get installed in minix/llvm/bin
159 lines
3.5 KiB
Bash
Executable File
159 lines
3.5 KiB
Bash
Executable File
#!/bin/bash
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############################
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#
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# Author: Koustubha Bhat
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# Date : 3-April-2014
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# VU University, Amsterdam.
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#
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############################
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set -o errexit
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MYPWD=`pwd`
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MINIX_ROOT=
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MINIX_LLVM_DIR=
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LLVMPASS=
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LLVMARGS=
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LLVMPASS_PATHS=
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OPTFLAGS=" "
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TARGET_MODULES=
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MINIX_MODS=
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# Set default values for essential variables
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: ${GENERATE_MAP="no"}
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: ${C="hello"}
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function usage()
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{
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echo "C=<target Minix module(s)> $0 [<LLVM-pass name> ...]"
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echo
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echo "Examples:"
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echo "C=pm,vfs ./$0 dummy"
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echo "C=drivers ./$0 dummy"
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echo
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echo "Additional arguments to the passes may be passed through \${LLVM_PASS_ARGS}."
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echo
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}
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function check_current_dir()
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{
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#Make sure we are running from the root dir of the Minix sources
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if [ -d ./minix ] && [ -d ./drivers ] && [ -d ./servers ] ; then
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MINIX_ROOT="${MYPWD}"
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elif [ -d ../../minix ] && [ -d ../../drivers ] && [ -d ../../servers ]; then
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MINIX_ROOT="${MYPWD}/../.."
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else
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echo "Please run the script from either of the following locations:"
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echo "> Root of the Minix sources."
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echo " OR"
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echo "> minix/llvm directory of the Minix sources."
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exit 1
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fi
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MINIX_LLVM_DIR="${MINIX_ROOT}/minix/llvm"
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}
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function check_args()
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{
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local llvmpass=
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local llvmpass_path=
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local exit_flag=0
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if [ $# -ge 1 ]; then
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if [ "$1" == "--help" ] || [ "$1" == "-h" ]; then
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usage
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exit 1
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fi
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for p in "$@" ;
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do
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llvmpass=$p
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# Default value for llvmargs not specified deliberately
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if [ -f "${INSTALL_DIR}/${llvmpass}.so" ]; then
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llvmpass_path="${INSTALL_DIR}/${llvmpass}.so"
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elif [ -f "${MINIX_LLVM_BIN_DIR}/${llvmpass}.so" ]; then
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llvmpass_path="${MINIX_LLVM_BIN_DIR}/${llvmpass}.so"
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else
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echo "The LLVM pass file ${llvmpass}.so doesn't exit."
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exit_flag=1
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fi
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LLVMPASS_PATHS+=" -load=${llvmpass_path} -${llvmpass}"
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done
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if [ ${exit_flag} == 1 ]; then
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echo "Searched in:"
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echo " ${INSTALL_DIR}"
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echo " and"
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echo " ${MINIX_LLVM_BIN_DIR}."
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exit 1
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fi
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LLVMARGS=" ${LLVM_PASS_ARGS}"
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fi
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}
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#Make sure we are running from the root dir of the Minix sources
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check_current_dir
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# set up the bridge to llvm-apps repository and initialize
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. ${MINIX_LLVM_DIR}/minix.inc
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. ${ROOT}/apps/scripts/include/configure.llvm.inc
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# Arguments check
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check_args "$@"
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if [ "$C" == "" ]; then
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C="hello"
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fi
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if [ "${GENERATE_MAP}" != "" ] && [[ ${GENERATE_MAP} =~ [yY][eE][sS] ]]; then
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generate_modules_map
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fi
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# If we are really instrumenting with some pass...
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if [ "${LLVMPASS_PATHS}" != "" ]; then
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OPTFLAGS=" -disable-opt ${LLVMPASS_PATHS} ${LLVMARGS}"
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fi
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TARGET_MODULES=`echo $C | sed -e "s/,/ /g"`
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for m in ${TARGET_MODULES}
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do
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for p in `get_modules_path $m`
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do
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MINIX_MODS="${MINIX_MODS} $p"
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done
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done
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# Show info
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echo "Build.llvm: Executing with following parameters..."
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echo "LLVM pass : ${LLVMPASS}"
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echo "LLVM pass arguments : ${LLVMARGS}"
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echo "Target Minix modules : ${MINIX_MODS}"
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echo "OPTFLAGS value : ${OPTFLAGS}"
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echo
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cd ${MINIX_ROOT}
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for m in ${MINIX_MODS}
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do
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echo "Instrumenting $m ..."
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n=`get_module_name $m`
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if [ "" == "$n" ]; then
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echo "Error: Couldn't fetch the module name for $m"
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continue
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fi
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clean_module $n $m
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OPTFLAGS=`echo ${OPTFLAGS} | sed -e "s/\ /\\\ /g"`
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OPTFLAGS_PLACEHOLDER="OPTFLAGS.$n=${OPTFLAGS}"
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(env "`echo ${OPTFLAGS_PLACEHOLDER}`" MKBITCODE=yes SLOPPY_FLIST=yes \
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${TOOLDIR}/nbmake-${ARCH} -C $m all install && echo "INFO: $m successfully instrumented." ) || echo "ERROR: Failed instrumenting $m"
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echo
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done
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cd ${MYPWD}
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