Support for running OFRAK on arm64 Linux

disassemblers/ofrak_angr/CHANGELOG.md

@@ -6,7 +6,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 ## [Unreleased](https://github.com/redballoonsecurity/ofrak/tree/master)
 
 ### Changed
-- Update to latest angr==9.2.77, which also necessitates Python >= 3.8.
+- Update to latest angr==9.2.93, which also necessitates Python >= 3.8.
 - Refactored AngrDecompilationAnalysis/Analyzer to use generic components in ofrak core. ([#453](https://github.com/redballoonsecurity/ofrak/pull/453))
 - Minor update to OFRAK Community License, add OFRAK Pro License ([#478](https://github.com/redballoonsecurity/ofrak/pull/478))
 

disassemblers/ofrak_capstone/CHANGELOG.md

@@ -3,13 +3,13 @@ All notable changes to `ofrak-capstone` will be documented in this file.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/) and adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [Unreleased 1.1.0rc0](https://github.com/redballoonsecurity/ofrak/tree/master)
+## [Unreleased 1.1.0rc1](https://github.com/redballoonsecurity/ofrak/tree/master)
 
 ### Fixed
 - Capstone tests fixed to use `run_instruction_unpacker_test_case` ([#503](https://github.com/redballoonsecurity/ofrak/pull/503))
 
 ### Changed
-- Update to captione==5.0.0.post1.
+- Update to captione==5.0.3.
 - Minor update to OFRAK Community License, add OFRAK Pro License ([#478](https://github.com/redballoonsecurity/ofrak/pull/478))
 - Updated library to support ofrak 3.3.0rc0. ([#539](https://github.com/redballoonsecurity/ofrak/issues/539))
 

disassemblers/ofrak_capstone/requirements.txt

@@ -1 +1 @@
-capstone==5.0.0.post1
+capstone==5.0.3

disassemblers/ofrak_capstone/setup.py

@@ -31,7 +31,7 @@ def read_requirements(requirements_path):
 
 setuptools.setup(
     name="ofrak_capstone",
-    version="1.0.0",
+    version="1.1.0rc1",
     packages=setuptools.find_packages(exclude=["ofrak_capstone_test", "ofrak_capstone_test.*"]),
     package_data={"ofrak_capstone": ["py.typed"]},
     install_requires=["ofrak>=3.3.0rc0"] + read_requirements("requirements.txt"),

ofrak_core/CHANGELOG.md

@@ -3,7 +3,7 @@ All notable changes to `ofrak` will be documented in this file.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/) and adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [Unreleased: 3.3.0rc2](https://github.com/redballoonsecurity/ofrak/tree/master)
+## [Unreleased: 3.3.0rc3](https://github.com/redballoonsecurity/ofrak/tree/master)
 ### Added
 - Add license check command to prompt users about community or pro licenses. ([#478](https://github.com/redballoonsecurity/ofrak/pull/478))
 - Support `application/vnd.android.package-archive` mime type for APKs, which is returned by newer versions of libmagic ([#470](https://github.com/redballoonsecurity/ofrak/pull/470))
@@ -67,6 +67,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
   - Add `RawMagicPattern` to efficiently run custom magic byte search logic within `MagicIdenfifier`
   - Update registered identifiers to make use of new `MagicIdentifier` for following resource tags: `Apk`, `Bzip2Data`, `CpioFilesystem`, `DeviceTreeBlob`, `Elf`, `Ext2Filesystem`, `Ext3Filesystem`, `Ext4Filesystem`, `GzipData`, `ISO9660Image`, `Jffs2Filesystem`, `LzmaData`, `XzData`, `LzoData`, `OpenWrtTrx`, `Pe`, `RarArchive`, `SevenZFilesystem`, `SquashfsFilesystem`, `TarArchive`, `Ubi`, `Ubifs`, `Uf2File`, `UImage`, `ZipArchive`, `ZlibData`, `ZstdData`
 - Update `Instruction.get_assembly` to by synchronous ([#539](https://github.com/redballoonsecurity/ofrak/issues/539))
+- Update orjson to ~=3.10.12 ([#562](https://github.com/redballoonsecurity/ofrak/pull/562/files))
 
 ### Deprecated
 - `Resource.flush_to_disk` deprecated in favor of `Resource.flush_data_to_disk`. ([#373](https://github.com/redballoonsecurity/ofrak/pull/373), [#567](https://github.com/redballoonsecurity/ofrak/pull/568))
@@ -77,7 +78,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 ### Security
 - Update aiohttp to 3.10.11 ([#522](https://github.com/redballoonsecurity/ofrak/pull/522))
 - Update pycryptogrpahy to version 43.0.3. ([#525](https://github.com/redballoonsecurity/ofrak/pull/525))
-- Bump `lief` dependency to 0.15.1 to address [vulnerability](https://github.com/redballoonsecurity/ofrak/security/dependabot/31) in lower versions ([#502](https://github.com/redballoonsecurity/ofrak/pull/502))
+- Bump `lief` dependency to 0.16.1 to address [vulnerability](https://github.com/redballoonsecurity/ofrak/security/dependabot/31) in lower versions ([#502](https://github.com/redballoonsecurity/ofrak/pull/502), [#562](https://github.com/redballoonsecurity/ofrak/pull/562/files))
 
 ## [3.2.0](https://github.com/redballoonsecurity/ofrak/compare/ofrak-v3.1.0...ofrak-v3.2.0)
 ### Added

ofrak_core/pytest_ofrak/elf/assets/Makefile

@@ -1,4 +1,3 @@
-
 CC=gcc
 
 default: program

ofrak_core/pytest_ofrak/elf/fixtures.py

@@ -1,133 +1,12 @@
 import os
 
-# import subprocess
-
 import pytest
 
 
-# MAKEFILE_CONTENTS = """
-# CC=gcc
-
-# default: program
-
-# program.o: program.c $(HEADERS)
-# 	$(CC) -c program.c -fno-asynchronous-unwind-tables -o program.o
-
-# program: program.o
-# 	$(CC) program.o -o program
-
-# program_no_reloc: program.o
-# 	$(CC) program.o -no-pie -o program_no_reloc
-
-# program_relocated: program_relocated.o
-# 	$(CC) program_relocated.o -o program_relocated
-
-# large_elf.o: large_elf.c $(HEADERS)
-# 	$(CC) -c large_elf.c -o large_elf.o
-
-# large_elf: large_elf.o
-# 	$(CC) large_elf.o -no-pie -o large_elf
-# """
-
-# C_SOURCE_CONTENTS = """
-# #include <stdio.h>
-
-# int foo();
-# int bar();
-
-# int main() {
-#    printf("Hello, World!\\n");
-#    return foo();
-# }
-
-# int foo() {
-#     return 12;
-# }
-
-# int bar() {
-#     return 24;
-# }
-
-
-# """
-
-# LARGE_SOURCE_CONTENTS_HEADER = """
-# int foo();
-# int bar();
-
-# int main() {
-#    return bar();
-# }
-
-# """
-
-# LARGE_SOURCE_CONTENTS_FOOTER = """
-
-# int foo() {
-#     return 12;
-# }
-
-# int bar() {
-#     return 24;
-# }
-
-
-# """
-
-# PATCH_CONTENTS = """
-# int noop0();
-
-# int baz()
-# {
-#     noop0();
-#     return 36;
-# }
-# """
-
-
-# def create_noops():
-#     noops = []
-
-#     i = 0
-
-#     for i in range(8000):
-#         instruction = f"int noop{i}(){{}}"
-#         noops.append(instruction)
-
-#     return noops
-
-
 @pytest.fixture(scope="session")
 def elf_test_directory():
     return os.path.join(os.path.dirname(__file__), "assets")
 
-    # makefile_path = os.path.join(tmpdir, "Makefile")
-    # c_source_path = os.path.join(tmpdir, "program.c")
-    # large_source_path = os.path.join(tmpdir, "large_elf.c")
-
-    # patch_dir = os.path.join(tmpdir, "source_dir")
-    # if not os.path.exists(patch_dir):
-    #     os.mkdir(patch_dir)
-    # patch_path = os.path.join(patch_dir, "patch.c")
-
-    # noops = create_noops()
-
-    # LARGE_SOURCE_CONTENTS = LARGE_SOURCE_CONTENTS_HEADER
-    # for noop in noops:
-    #     LARGE_SOURCE_CONTENTS += noop
-    # LARGE_SOURCE_CONTENTS += LARGE_SOURCE_CONTENTS_FOOTER
-
-    # with open(makefile_path, "w") as f:
-    #     f.write(MAKEFILE_CONTENTS)
-    # with open(c_source_path, "w") as f:
-    #     f.write(C_SOURCE_CONTENTS)
-    # with open(large_source_path, "w") as f:
-    #     f.write(LARGE_SOURCE_CONTENTS)
-    # with open(patch_path, "w") as f:
-    #     f.write(PATCH_CONTENTS)
-
-    # return tmpdir
-
 
 @pytest.fixture(scope="session")
 def elf_object_file(elf_test_directory):

ofrak_core/requirements.txt

@@ -10,8 +10,8 @@ importlib-metadata>=4.13
 intervaltree==3.1.0
 keystone-engine==0.9.2
 jefferson==0.4.5;python_version>="3.8"
-lief==0.15.1
-orjson~=3.9.15
+lief==0.16.1
+orjson~=3.10.12
 pefile==2023.2.7
 pycdlib==1.12.0
 python-magic;platform_system!="Windows"

ofrak_core/setup.py

@@ -69,7 +69,7 @@ def read_requirements(requirements_path):
 
 setuptools.setup(
     name="ofrak",
-    version="3.3.0rc2",
+    version="3.3.0rc3",
     description="A binary analysis and modification platform",
     packages=setuptools.find_packages(exclude=["test_ofrak", "test_ofrak.*"]),
     package_data={
@@ -78,7 +78,7 @@ def read_requirements(requirements_path):
     install_requires=[
         "ofrak_io>=1.0,==1.*",
         "ofrak_type>=2.2.0rc0,==2.*",
-        "ofrak_patch_maker>=4.0.2rc0,==4.*",
+        "ofrak_patch_maker>=4.1.0rc0,==4.*",
     ]
     + read_requirements("requirements.txt"),
     extras_require={

ofrak_patch_maker/CHANGELOG.md

@@ -3,10 +3,10 @@ All notable changes to `ofrak-patch-maker` will be documented in this file.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/) and adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [Unreleased](https://github.com/redballoonsecurity/ofrak/tree/master)
+## [Unreleased: 4.1.0rc0](https://github.com/redballoonsecurity/ofrak/tree/master)
 ### Added
 - GNU 32-bit x86 toolchain. ([#405](https://github.com/redballoonsecurity/ofrak/pull/405))
-- SPARC BCC tolchain. ([#462](https://github.com/redballoonsecurity/ofrak/pull/462))
+- SPARC BCC toolchain (x86_64 platforms only) ([#462](https://github.com/redballoonsecurity/ofrak/pull/462), [#405](https://github.com/redballoonsecurity/ofrak/pull/405))
 
 ### Removed
 - Switch from binutils version of linker, bin_parser, assembler for X86_64 to default Debian versions. ([#405](https://github.com/redballoonsecurity/ofrak/pull/405))
@@ -18,7 +18,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 ### Changed
 - Removed `SUBALIGN(0)` for `.bss` sections
 - Minor update to OFRAK Community License, add OFRAK Pro License ([#478](https://github.com/redballoonsecurity/ofrak/pull/478))
-- Install toolchains from source or tarball instead of relying on the Debian package manager ([#502](https://github.com/redballoonsecurity/ofrak/pull/502), [#541](https://github.com/redballoonsecurity/ofrak/pull/541))
+- Install toolchains (x86_64, aarch64 platforms) from source or tarball instead of relying on the Debian package manager ([#405](https://github.com/redballoonsecurity/ofrak/pull/405), [#502](https://github.com/redballoonsecurity/ofrak/pull/502), [#541](https://github.com/redballoonsecurity/ofrak/pull/541), [#562](https://github.com/redballoonsecurity/ofrak/pull/562/files))
 - Deprecate reserving `.bss` space at the FEM linking step with `create_unsafe_bss_segment` method and `unsafe_bss_segment` argument. ([#505](https://github.com/redballoonsecurity/ofrak/pull/505))
 - Determine the correct allocation behavior of sections from ELF flags rather than section names. ([#505](https://github.com/redballoonsecurity/ofrak/pull/505))
 

ofrak_patch_maker/Dockerstub

@@ -1,34 +1,53 @@
 ARG TARGETARCH
 
+RUN mkdir -p /opt/rbs/toolchain
+
+COPY ${PACKAGE_PATH}/ofrak_patch_maker/config/docker/${TARGETARCH}_platform_toolchain.conf /etc/ofrak/toolchain.conf
+
 # LLVM
-RUN mkdir -p /opt/rbs/toolchain && \
+RUN if [ "$TARGETARCH" = "amd64" ]; then \
     cd /tmp && \
     wget https://github.com/llvm/llvm-project/releases/download/llvmorg-12.0.1/clang+llvm-12.0.1-x86_64-linux-gnu-ubuntu-16.04.tar.xz --show-progress --progress=bar:force:noscroll && \
     tar xf clang+llvm-12.0.1-x86_64-linux-gnu-ubuntu-16.04.tar.xz -C /opt/rbs/toolchain && \
     rm -rf clang+llvm-12.0.1-x86_64-linux-gnu-ubuntu-16.04.tar.xz && \
-    mv /opt/rbs/toolchain/clang+llvm-12.0.1-x86_64-linux-gnu-ubuntu- /opt/rbs/toolchain/llvm_12.0.1
+    mv /opt/rbs/toolchain/clang+llvm-12.0.1-x86_64-linux-gnu-ubuntu- /opt/rbs/toolchain/llvm_12.0.1; \
+elif [ "$TARGETARCH" = "arm64" ]; then \
+    apt-get update && apt-get install -y libtinfo5 && \
+    cd /tmp/ && \
+    wget https://github.com/llvm/llvm-project/releases/download/llvmorg-12.0.1/clang+llvm-12.0.1-aarch64-linux-gnu.tar.xz --show-progress --progress=bar:force:noscroll && \
+    tar xf clang+llvm-12.0.1-aarch64-linux-gnu.tar.xz -C /opt/rbs/toolchain && \
+    rm -rf clang+llvm-12.0.1-aarch64-linux-gnu.tar.xz && \
+    mv /opt/rbs/toolchain/clang+llvm-12.0.1-aarch64-linux-gnu /opt/rbs/toolchain/llvm_12.0.1; \
+fi;
 
 # ARM GNU NONE EABI
-RUN cd /tmp && \
+RUN if [ "$TARGETARCH" = "amd64" ]; then \
+    cd /tmp && \
     wget https://developer.arm.com/-/media/Files/downloads/gnu-rm/10-2020q4/gcc-arm-none-eabi-10-2020-q4-major-x86_64-linux.tar.bz2 --show-progress --progress=bar:force:noscroll && \
     tar xf gcc-arm-none-eabi-10-2020-q4-major-x86_64-linux.tar.bz2 -C /opt/rbs/toolchain && \
-    rm -rf gcc-arm-none-eabi-10-2020-q4-major-x86_64-linux.tar.bz2
+    rm -rf gcc-arm-none-eabi-10-2020-q4-major-x86_64-linux.tar.bz2; \
+elif [ "$TARGETARCH" = "arm64" ]; then \
+    cd /tmp && \
+    wget https://developer.arm.com/-/media/Files/downloads/gnu-rm/10-2020q4/gcc-arm-none-eabi-10-2020-q4-major-aarch64-linux.tar.bz2 --show-progress --progress=bar:force:noscroll && \
+    tar xf gcc-arm-none-eabi-10-2020-q4-major-aarch64-linux.tar.bz2 -C /opt/rbs/toolchain && \
+    rm -rf gcc-arm-none-eabi-10-2020-q4-major-aarch64-linux.tar.bz2; \
+fi;
 
 # LINUX GNU + BINUTILS
-RUN cd /tmp && \
+RUN if [ "$TARGETARCH" = "amd64" ]; then \
+    cd /tmp && \
     wget https://download.01.org/0day-ci/cross-package/gcc-10.3.0-nolibc/x86_64-gcc-10.3.0-nolibc_x86_64-linux.tar.xz --show-progress --progress=bar:force:noscroll && \
     tar xf x86_64-gcc-10.3.0-nolibc_x86_64-linux.tar.xz -C /opt/rbs/toolchain && \
-    rm -rf x86_64-gcc-10.3.0-nolibc_x86_64-linux.tar.xz
-
-#X64-64 toolchain for arm64 Docker images
-RUN if [ "$TARGETARCH" = "arm64" ]; then \
-    apt-get update && apt-get install -y gcc-10-x86-64-linux-gnu; \
+    rm -rf x86_64-gcc-10.3.0-nolibc_x86_64-linux.tar.xz; \
+elif [ "$TARGETARCH" = "arm64" ]; then \
+    cd /tmp && \
+    wget https://www.kernel.org/pub/tools/crosstool/files/bin/arm64/10.3.0/arm64-gcc-10.3.0-nolibc-x86_64-linux.tar.xz --show-progress --progress=bar:force:noscroll && \
+    tar xvf arm64-gcc-10.3.0-nolibc-x86_64-linux.tar.xz -C /opt/rbs/toolchain && \
+    rm -rf arm64-gcc-10.3.0-nolibc-x86_64-linux.tar.xz; \
 fi;
 
 #M68k GNU 10 Linux
-#Only exists for x86
-RUN if [ "$TARGETARCH" = "amd64" ]; then \
-    cd /tmp && \
+RUN cd /tmp && \
     apt-get update && apt-get install -y gcc g++ gperf bison flex texinfo help2man make libncurses5-dev python3-dev autoconf automake libtool libtool-bin gawk wget bzip2 xz-utils unzip patch libstdc++6 rsync && \
     git clone https://github.com/crosstool-ng/crosstool-ng.git && \
     cd crosstool-ng/ && \
@@ -82,8 +101,7 @@ RUN if [ "$TARGETARCH" = "amd64" ]; then \
       >> .config && \
     ./ct-ng build CT_JOBS=`nproc` \
       | sed 's/.*\r//g' && \
-    cd /tmp && rm -rf crosstool-ng; \
-fi;
+    cd /tmp && rm -rf crosstool-ng
 
 #M68k VBCC
 RUN cd /tmp && \
@@ -100,7 +118,7 @@ RUN cd /tmp && \
     CPU=m68k SYNTAX=mot make && \
     cp ./vasmm68k_mot /opt/rbs/toolchain/vbcc_0_9/bin/ && \
     cp ./vobjdump /opt/rbs/toolchain/vbcc_0_9/bin/ && \
-    cd /tmp &&\
+    cd /tmp && \
     rm -rf vasm* vbcc*
 
 #AARCH64 GNU 10 Linux
@@ -109,6 +127,11 @@ RUN if [ "$TARGETARCH" = "amd64" ]; then \
     wget https://armkeil.blob.core.windows.net/developer/Files/downloads/gnu-a/10.3-2021.07/binrel/gcc-arm-10.3-2021.07-x86_64-aarch64-none-linux-gnu.tar.xz --show-progress --progress=bar:force:noscroll && \
     tar xf gcc-arm-10.3-2021.07-x86_64-aarch64-none-linux-gnu.tar.xz -C /opt/rbs/toolchain && \
     rm -rf gcc-arm-10.3-2021.07-x86_64-aarch64-none-linux-gnu.tar.xz; \
+elif [ "$TARGETARCH" = "arm64" ]; then \
+    cd /tmp && \
+    wget https://developer.arm.com/-/media/Files/downloads/gnu-a/10.3-2021.07/binrel/gcc-arm-10.3-2021.07-aarch64-aarch64-none-elf.tar.xz --show-progress --progress=bar:force:noscroll && \
+    tar xf gcc-arm-10.3-2021.07-aarch64-aarch64-none-elf.tar.xz -C /opt/rbs/toolchain && \
+    rm -rf gcc-arm-10.3-2021.07-aarch64-aarch64-none-elf.tar.xz; \
 fi;
 
 #AVR GCC
@@ -117,6 +140,11 @@ RUN if [ "$TARGETARCH" = "amd64" ]; then \
     wget https://ww1.microchip.com/downloads/aemDocuments/documents/OTH/ProductDocuments/SoftwareLibraries/Firmware/avr8-gnu-toolchain-3.6.2.1778-linux.any.x86_64.tar.gz --show-progress --progress=bar:force:noscroll && \
     tar xzf avr8-gnu-toolchain-3.6.2.1778-linux.any.x86_64.tar.gz -C /opt/rbs/toolchain && \
     rm -rf avr8-gnu-toolchain-3.6.2.1778-linux.any.x86_64.tar.gz; \
+elif [ "$TARGETARCH" = "arm64" ]; then \
+    cd /tmp && \
+    wget http://downloads.arduino.cc/tools/avr-gcc-7.3.0-atmel3.6.1-arduino7-aarch64-pc-linux-gnu.tar.bz2 --show-progress --progress=bar:force:noscroll && \
+    tar xf avr-gcc-7.3.0-atmel3.6.1-arduino7-aarch64-pc-linux-gnu.tar.bz2 -C /opt/rbs/toolchain && \
+    rm -rf avr-gcc-7.3.0-atmel3.6.1-arduino7-aarch64-pc-linux-gnu.tar.bz2; \
 fi;
 
 #PPC GNU 10 Linux
@@ -125,6 +153,11 @@ RUN if [ "$TARGETARCH" = "amd64" ]; then \
     wget https://download.01.org/0day-ci/cross-package/gcc-10.3.0-nolibc/x86_64-gcc-10.3.0-nolibc_powerpc-linux.tar.xz --show-progress --progress=bar:force:noscroll && \
     tar xf x86_64-gcc-10.3.0-nolibc_powerpc-linux.tar.xz -C /opt/rbs/toolchain && \
     rm -rf x86_64-gcc-10.3.0-nolibc_powerpc-linux.tar.xz; \
+elif [ "$TARGETARCH" = "arm64" ]; then \
+    cd /tmp && \
+    wget https://www.kernel.org/pub/tools/crosstool/files/bin/arm64/10.3.0/arm64-gcc-10.3.0-nolibc-powerpc-linux.tar.xz --show-progress --progress=bar:force:noscroll && \
+    tar xf arm64-gcc-10.3.0-nolibc-powerpc-linux.tar.xz -C /opt/rbs/toolchain && \
+    rm -rf arm64-gcc-10.3.0-nolibc-powerpc-linux.tar.xz; \
 fi;
 
 #BCC (GCC) SPARC v8

ofrak_patch_maker/ofrak_patch_maker/toolchain.conf → ofrak_patch_maker/ofrak_patch_maker/config/docker/amd64_platform_toolchain.conf

@@ -26,15 +26,13 @@ LINKER = /opt/rbs/toolchain/m68k-unknown-linux-gnu/bin/m68k-unknown-linux-gnu-ld
 BIN_PARSER = /opt/rbs/toolchain/m68k-unknown-linux-gnu/bin/m68k-unknown-linux-gnu-objdump
 
 [GNU_X86_64_LINUX_EABI_10_3_0]
-# Expecting the user host is 64-bit GNU/Linux, we're replacing the system compiler
 PREPROCESSOR = /opt/rbs/toolchain/gcc-10.3.0-nolibc/x86_64-linux/bin/x86_64-linux-gcc
 COMPILER = /opt/rbs/toolchain/gcc-10.3.0-nolibc/x86_64-linux/bin/x86_64-linux-gcc
 LINKER = /opt/rbs/toolchain/gcc-10.3.0-nolibc/x86_64-linux/bin/x86_64-linux-ld
 BIN_PARSER = /opt/rbs/toolchain/gcc-10.3.0-nolibc/x86_64-linux/bin/x86_64-linux-objdump
 LIB = /opt/rbs/toolchain/gcc-10.3.0-nolibc/x86_64-linux/lib
 
 [GNU_X86_32_LINUX_EABI_10_3_0]
-# Expecting the user host is 64-bit GNU/Linux, we're replacing the system compiler
 PREPROCESSOR = /opt/rbs/toolchain/gcc-10.3.0-nolibc/x86_64-linux/bin/x86_64-linux-gcc
 COMPILER = /opt/rbs/toolchain/gcc-10.3.0-nolibc/x86_64-linux/bin/x86_64-linux-gcc
 LINKER = /opt/rbs/toolchain/gcc-10.3.0-nolibc/x86_64-linux/bin/x86_64-linux-ld