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#!/bin/bash
set -eu -o pipefail
wrapper_dir=$(cd "$(dirname "$0")"; pwd)
orig_bin_dir=$(cd "$1"; pwd)
shadow_bin_dir=$(cd "$2"; pwd)
top=$(cd "$3"; pwd)
shadow_top=$(mkdir -p "$4"; cd "$4"; pwd)
shift 4
cd "$orig_bin_dir"
if [ $# = 0 ]; then
# wrap all files
readarray -t to_be_wrapped < <(find ./ ! -type d | sed -e "s#^\./##")
else
# wrap only listed files
to_be_wrapped=("$@")
fi
bin=$(basename "$(pwd)")
for exe in "${to_be_wrapped[@]}"; do
if ! [ -x "$exe" ]; then
continue
fi
mkdir -p "../$bin.orig/$(dirname "$exe")"
mkdir -p "../$bin.wrapper/$(dirname "$exe")"
# Install or update the wrapper
case "$exe" in
"clang") wrapper="shadow-cc.sh" ;;
"clang++") wrapper="shadow-cc.sh" ;;
"llvm-ar") wrapper="shadow-ar.sh" ;;
"strip.sh") wrapper="shadow-strip.sh" ;;
*) wrapper="count-wrapper.sh" ;;
esac
exe_hash=$(git rev-parse HEAD)
ccache="CCACHE_COMPILERCHECK=string:$exe_hash /usr/bin/ccache"
# We copy wrappers to bin.wrapper directory so that we can re-run install
# procedure multiple times without side-effects.
cp "$wrapper_dir/$wrapper" "../$bin.wrapper/$exe"
sed -i \
-e "s%#TOP#%$top%" \
-e "s%#SHADOW_TOP#%$shadow_top%" \
-e "s%#ORIG_TOOL#%$orig_bin_dir/../$bin.orig/$exe%" \
-e "s%#SHADOW_TOOL#%$shadow_bin_dir/$exe%" \
-e "s%#CCACHE#%$ccache%" \
"../$bin.wrapper/$exe"
# Calculate path relative to $exe's directory -- for ln.
ln_rel_path="$bin.wrapper/$exe"
exe_path="$exe"
while true; do
ln_rel_path="../$ln_rel_path"
exe_path=$(dirname "$exe_path")
if [ "$exe_path" = "." ]; then
break
fi
done
# Check if executable was already moved to ../bin.orig
if [ -L "$exe" ] \
&& [ x"$(readlink "$exe")" = x"$ln_rel_path" ]; then
continue
fi
# Move the executable and symlink to the wrapper.
mv "$exe" "../$bin.orig/$exe"
ln -s "$ln_rel_path" "$exe"
done
mkdir -p "${shadow_top}-counts"
echo "benchmark,symbol,size" > $shadow_top.size
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