clang-tsx-relro

#!/bin/bash

root=`dirname $(readlink -f $0)`
buildpath=$root/build
srcpath=$root/src
mode=$TSXCFI_MODE
libcpath=$buildpath/libc/musl_"$mode"_relro/lib

if [ -s $TSXCFI_MODE ]; then echo "Please source switch.sh in the root folder of the project, and switch in one of the 3 mode"; exit 1; fi; 
if [ -z $"@" ]; then exit 1; fi;

args="$@";

command="$buildpath/llvm/llvm-build/bin/clang $args -fno-optimize-sibling-calls -nostdlib -nodefaultlibs -Qunused-arguments -mllvm -tsx-cfi=$mode"

fblib="hlefb" # in native mode it's never called from the code
if [ $mode == "rtm" ]; then
    command+=" -Wl,--dynamic-linker=$root/build/ld/glibc_build_rtm/elf/ld-linux-x86-64.so.2" 
    fblib="rtmfb-relro"
elif [ $mode == "hle" ]; then
    command+=" -Wl,--dynamic-linker=$root/build/ld/glibc_build_hle/elf/ld-linux-x86-64.so.2" 
    fblib="hlefb-relro"
fi

if [ -z $TSXCFI_LIBC ]; then
    command+=" -L$libcpath/"
fi

if  [[ $command == *"-shared"* ]]; then
    command+=" -Wl,-Bsymbolic  -Wl,--whole-archive,$buildpath/libtsxcfifb/lib$fblib.a  -Wl,--no-whole-archive"
else
    command+=" -L$buildpath/libtsxcfifb -l$fblib -lc -Wl,$libcpath/crt1.o"
fi;

command+=" -nostartfiles -lgcc -Wl,-z,relro,-z,now -mllvm -tsx-cfi-static"

# Finally running clang..
eval "$command";
# If it's native we don't need to binpatch any file
if [ $mode == "native" ]; then
    exit
fi;

if  [[ $args != *"-c "* ]]; then
    name=a.out
    MAGIC=`getopt -o o:c -- "$@" 2>/dev/null`
    eval set -- "$MAGIC"

    while true ; do
	    case "$1" in
	        -o)
		        shift;
		        name=$1
		        break
		        ;;
	        -c)
		        exit $ret
		        ;;
	        *)
		        break
		        ;;
	    esac
    done
    python $srcpath/bin_patcher.py $name
fi