From 679a5a46af4f4b3a350570d28b7240d703de4234 Mon Sep 17 00:00:00 2001
From: secnotes <1321993383@qq.com>
Date: Thu, 9 Oct 2025 07:45:37 -0400
Subject: [PATCH] Add support for the cross-compilation tool aarch64-linux-gnu
 in Linux

---
 CMakeLists.txt             |  4 ++--
 Linux/arm64.toochain.cmake | 12 ++++++++++++
 Linux/debugger.h           |  1 +
 README.md                  |  8 ++++++++
 4 files changed, 23 insertions(+), 2 deletions(-)
 create mode 100644 Linux/arm64.toochain.cmake

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3c7c33b..648684a 100755
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -28,10 +28,10 @@ elseif(NOT DEFINED ${ARCHITECTURE})
   endif()
 endif()
 
-add_subdirectory(third_party)
-
 project("tinyinst")
 
+add_subdirectory(third_party)
+
 include_directories(${CMAKE_CURRENT_BINARY_DIR}/third_party/obj/wkit/include)
 
 if(${ARCHITECTURE} MATCHES arm64)
diff --git a/Linux/arm64.toochain.cmake b/Linux/arm64.toochain.cmake
new file mode 100644
index 0000000..d81cd98
--- /dev/null
+++ b/Linux/arm64.toochain.cmake
@@ -0,0 +1,12 @@
+set(CMAKE_C_COMPILER aarch64-linux-gnu-gcc)
+set(CMAKE_CXX_COMPILER aarch64-linux-gnu-g++)
+
+set(ARCHITECTURE arm64)
+add_definitions(-DARM64)
+
+# search for programs in the build host directories.
+SET(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
+# Only look for libraries, headers and packages in the sysroot, don't look on the build machine.
+SET(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
+SET(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
+SET(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)
\ No newline at end of file
diff --git a/Linux/debugger.h b/Linux/debugger.h
index 6216c81..0521976 100644
--- a/Linux/debugger.h
+++ b/Linux/debugger.h
@@ -81,6 +81,7 @@ struct LoadedModule {
 bool operator< (LoadedModule const& lhs, LoadedModule const& rhs);
 
 #ifdef ARM64
+#include <asm/ptrace.h>
 typedef user_pt_regs arch_reg_struct;
 #else
 typedef user_regs_struct arch_reg_struct;
diff --git a/README.md b/README.md
index 478df8f..70236bb 100755
--- a/README.md
+++ b/README.md
@@ -87,6 +87,14 @@ cmake -DCMAKE_TOOLCHAIN_FILE=</path/to/android/ndk>build/cmake/android.toolchain
 cmake --build . --config Release
 ```
 
+#### Cross-compiling for Linux
+```
+mkdir build
+cd build
+cmake -DCMAKE_TOOLCHAIN_FILE=../Linux/arm64.toochain.cmake ..
+cmake --build . --config Release
+```
+
 Note #1: 64-bit build will also run against 32-bit targets on Windows and Linux operating systems
 
 Note #2: Encountering problems creating a 32-bit build on 64-bit Windows due to the environment not being properly set up and libraries missing? Open the generated .sln file in Visual Studio and build from there instead of running cmake --build. Also note that 64-bit build is going to work on 32-bit targets, so creating a 32-bit build might not be necessary.