mirror of
https://github.com/revng/revng
synced 2026-06-21 14:07:57 +00:00
Alessandro Di Federico
83ea2caacd
This commit removes all the ELF-specific code from the `CodeGenerator` class by creating a new class, `BinaryFile` which contains all the information about the program that might be needed in an image format independent way. However, `BinaryFile` has some fields which are specific to ELF, we might want to address this when additional file formats are supported. A key benefit of isolating this code is that we can anticipate the parsing of the input file, so that we have its architecture available earlier than when `CodeGenerator` is instantiated, therefore we can drop the `--architecture` parameter.
125 lines
2.4 KiB
Bash
Executable File
125 lines
2.4 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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set -e
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while [[ $# > 0 ]]
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do
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key="$1"
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case $key in
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-O0)
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OPTIMIZE="0"
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shift
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;;
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-O1)
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OPTIMIZE="1"
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shift # past argument
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;;
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-O2)
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OPTIMIZE="2"
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shift # past argument
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;;
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-s)
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SKIP="1"
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shift # past argument
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;;
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--)
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shift
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break
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;;
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*)
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# unknown option
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if [ -z "$INPUT" ]; then
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INPUT="$key"
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else
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break;
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fi
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shift
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;;
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esac
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done
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# Output file names
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LL="$INPUT.ll"
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REVAMB_LOG="$LL.log"
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LL_OPT="$INPUT.opt.ll"
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CSV="$LL.li.csv"
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OBJ="$LL.o"
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# Required programs
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export PATH="$SCRIPT_PATH:$PATH"
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CC="${CC:-cc}"
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LLC="llc"
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OPT="opt"
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REVAMB="revamb"
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TOOPT="li-csv-to-ld-options"
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SUPPORTC="$SCRIPT_PATH/../share/revamb/support.c"
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if [ '!' -e "$SUPPORTC" ]; then
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SUPPORTC="$SCRIPT_PATH/support.c"
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if [ '!' -e "$SUPPORTC" ]; then
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echo "Can't find support.c"
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exit 1
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fi
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fi
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# Read endianess and architecture bytes
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ARCHID=$(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(17)
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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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010028)
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ARCH=arm;
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;;
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020200)
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ARCH=mips;
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;;
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01003e)
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ARCH=x86_64;
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;;
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*)
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echo "Unknown architecture: $ARCHID"
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exit 1
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;;
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esac
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if [ "$SKIP" -eq 0 ]; then
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"$REVAMB" -g ll --debug jtcount,osrjts --use-sections "$INPUT" "$LL" "$@" |& tee "$REVAMB_LOG"
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fi
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OUTPUT="$INPUT.translated"
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if [ "$OPTIMIZE" -eq 0 ]; then
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"$LLC" -O0 -filetype=obj "$LL" -o "$OBJ"
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elif [ "$OPTIMIZE" -eq 1 ]; then
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"$LLC" -O2 -filetype=obj "$LL" -o "$OBJ" -regalloc=fast
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elif [ "$OPTIMIZE" -eq 2 ]; then
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"$OPT" -O2 -S -o "$LL_OPT" "$LL"
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LL="$LL_OPT"
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"$LLC" -O2 -filetype=obj "$LL" -o "$OBJ" -regalloc=fast
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fi
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"$CC" $("$TOOPT" "$CSV") \
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"$OBJ" \
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"$SUPPORTC" \
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-DTARGET_"$ARCH" \
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-lz -lm -lrt -Wno-pointer-to-int-cast -Wno-int-to-pointer-cast -g \
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-o "$OUTPUT" \
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-fno-pie
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