mirror of
https://github.com/revng/revng
synced 2026-06-21 14:07:57 +00:00
Alessandro Di Federico
cc02713f6d
This commit dismisses the `argparse` library (the only non-runtime C component of rev.ng) in favor of LLVM's CommandLine library, which offers several benefits. Among others, now command line arguments can be easily specified as a global variable, decentralizing their management and avoiding the long list of arguments in the constructor of singleton objects such as `CodeGenerator`.
177 lines
3.6 KiB
Bash
Executable File
177 lines
3.6 KiB
Bash
Executable File
#!/bin/bash
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#
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# This file is distributed under the MIT License. See LICENSE.md for details.
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#
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SCRIPT_PATH="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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INPUT=""
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OPTIMIZE=0
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SKIP=0
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ISOLATE=0
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SUPPORT_CONFIG=normal
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EXTRA_OPTIONS=""
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BASE=""
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set -e
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set -o pipefail
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while [[ $# > 0 ]]
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do
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key="$1"
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case $key in
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-O0)
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OPTIMIZE="0"
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shift
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;;
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-O1)
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OPTIMIZE="1"
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shift # past argument
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;;
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-O2)
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OPTIMIZE="2"
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shift # past argument
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;;
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-trace)
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SUPPORT_CONFIG="trace"
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shift # past argument
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;;
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-s)
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SKIP="1"
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shift # past argument
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;;
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-i)
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ISOLATE="1"
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shift # past argument
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;;
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--base)
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shift # past argument
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BASE="--base $1"
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shift
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;;
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--)
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shift
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break
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;;
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*)
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# unknown option
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if [ -z "$INPUT" ]; then
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INPUT="$key"
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else
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break;
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fi
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shift
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;;
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esac
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done
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# Output file name
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LL="$INPUT"
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LIBSCSV="$LL.ll.need.csv"
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# Required programs
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export PATH="$SCRIPT_PATH:$PATH"
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CC="${CC:-cc}"
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LINK="llvm-link"
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LLC="llc"
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OPT="opt"
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REVAMB="revamb"
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REVAMBDUMP="revamb-dump"
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TOOPT="csv-to-ld-options"
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# Read endianess and architecture bytes
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ARCHID=$(python -c '
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from binascii import hexlify
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import sys
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file = open(sys.argv[1], "rb")
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file.seek(5)
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result = hexlify(file.read(1))
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file.seek(18)
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result += hexlify(file.read(2))
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file.close()
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print(result.decode("utf-8"))' "$INPUT")
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case "$ARCHID" in
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012800)
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ARCH=arm;
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;;
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020008)
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ARCH=mips;
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;;
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013e00)
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ARCH=x86_64;
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;;
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010300)
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ARCH=i386;
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;;
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020016)
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ARCH=s390x;
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;;
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*)
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echo "Unknown architecture: $ARCHID"
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exit 1
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;;
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esac
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SUPPORT_NAME="support-$ARCH-$SUPPORT_CONFIG.ll"
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SUPPORT_PATH="$SCRIPT_PATH/../share/revamb/$SUPPORT_NAME"
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if [ '!' -e "$SUPPORT_PATH" ]; then
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SUPPORT_PATH="$SCRIPT_PATH/$SUPPORT_NAME"
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if [ '!' -e "$SUPPORT_PATH" ]; then
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echo "Can't find $SUPPORT_NAME"
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exit 1
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fi
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fi
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if [ "$ISOLATE" -eq 1 ]; then
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EXTRA_OPTIONS="$EXTRA_OPTIONS --functions-boundaries"
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fi
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if [ "$SKIP" -eq 0 ]; then
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REVAMB_LOG="$LL.log"
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CSV="$LL.ll.li.csv"
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"$REVAMB" -g ll --debug-log jtcount --debug-log osrjts --use-debug-symbols $BASE $EXTRA_OPTIONS "$INPUT" "$LL.ll" "$@" |& tee "$REVAMB_LOG"
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fi
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if [ "$ISOLATE" -eq 1 ]; then
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LL_ISOLATED="$LL.isolated"
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"$REVAMBDUMP" -i "$LL_ISOLATED.ll" "$LL.ll"
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LL="$LL_ISOLATED"
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fi
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LL_LINKED="$LL.linked"
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"$LINK" "$LL.ll" "$SUPPORT_PATH" -o "$LL_LINKED.ll" -S
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LL="$LL_LINKED"
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OUTPUT="$INPUT.translated"
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if [ "$OPTIMIZE" -eq 0 ]; then
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"$LLC" -O0 -filetype=obj "$LL.ll" -o "$OBJ"
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elif [ "$OPTIMIZE" -eq 1 ]; then
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"$LLC" -O2 -filetype=obj "$LL.ll" -o "$OBJ" -regalloc=fast -disable-machine-licm
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elif [ "$OPTIMIZE" -eq 2 ]; then
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LL_OPT="$LL.opt"
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"$OPT" -O2 -S "$LL.ll" -o "$LL_OPT.ll"
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"$LLC" -O2 -filetype=obj "$LL_OPT.ll" -o "$OBJ" -regalloc=fast -disable-machine-licm
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LL="$LL_OPT"
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fi
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if "$CC" -no-pie |& grep 'unrecognized command line option'; then
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DISABLE_PIE="-fno-pie"
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else
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DISABLE_PIE="-fno-pie -no-pie"
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fi
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OBJ="$LL.o"
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"$CC" \
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"$OBJ" \
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-lz -lm -lrt $("$TOOPT" "$CSV" "$LIBSCSV") -L ./ \
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-o "$OUTPUT" \
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$DISABLE_PIE
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UNPATCHED_OUTPUT="$OUTPUT.tmp"
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mv "$OUTPUT" "$UNPATCHED_OUTPUT"
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merge-dynamic.py $BASE "$UNPATCHED_OUTPUT" "$INPUT" "$OUTPUT"
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rm "$UNPATCHED_OUTPUT"
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