Vendor PatchELF

.gitmodules

@@ -10,3 +10,6 @@
 [submodule "dependencies/zenity/src"]
 	path = dependencies/zenity/src
 	url = https://gitea.thebrokenrail.com/TheBrokenRail/zenity.git
+[submodule "launcher/dependencies/patchelf/src"]
+	path = launcher/dependencies/patchelf/src
+	url = https://github.com/NixOS/patchelf.git

cmake/toolchain/base-toolchain.cmake

@@ -1,8 +1,31 @@
 # Setup Toolchain
 macro(setup_toolchain target)
-    # Use ARM Cross-Compiler
-    set(CMAKE_C_COMPILER "${target}-gcc")
-    set(CMAKE_CXX_COMPILER "${target}-g++")
+    # Target Variants
+    set(target_variants "${target}")
+    macro(add_target_variant value)
+        string(REPLACE "-linux" "-${value}-linux" target_variant "${target}")
+        list(APPEND target_variants "${target_variant}")
+    endmacro()
+    add_target_variant(unknown)
+    add_target_variant(none)
+    add_target_variant(pc)
+    # Find Compiler
+    macro(find_compiler output name)
+        set(possible_names "")
+        foreach(possible_target IN LISTS target_variants)
+            list(APPEND possible_names "${possible_target}-${name}")
+        endforeach()
+        find_program(
+            "${output}"
+            NAMES ${possible_names}
+            NO_CACHE
+        )
+        if("${${output}}" STREQUAL "${output}-NOTFOUND")
+            message(FATAL_ERROR "Unable To Find ${name}")
+        endif()
+    endmacro()
+    find_compiler(CMAKE_C_COMPILER "gcc")
+    find_compiler(CMAKE_CXX_COMPILER "g++")
     # Extra
     set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
     # Custom Search Paths

example-mods/expanded-creative/expanded-creative.cpp

@@ -2,7 +2,6 @@
 
 #include <libreborn/libreborn.h>
 #include <symbols/minecraft.h>
-#include <mods/init/init.h>
 #include <mods/misc/misc.h>
 
 // The Actual Mod
@@ -633,11 +632,7 @@ static void Inventory_setupDefault_FillingContainer_addItem_call_injection(unsig
 }
 
 // Init
-HOOK(init_creative, void, ()) {
-    ensure_init_creative();
-    (*real_init_creative)();
-
+__attribute__((constructor)) static void init_expanded_creative() {
     INFO("Loading Expanded Creative Mod");
-
     misc_run_on_creative_inventory_setup(Inventory_setupDefault_FillingContainer_addItem_call_injection);
 }

launcher/CMakeLists.txt

@@ -1,5 +1,8 @@
 project(launcher)
 
+# Dependencies
+add_subdirectory(dependencies)
+
 # Launcher
 add_executable(launcher src/bootstrap.c src/patchelf.c src/crash-report.c)
 if(MCPI_SERVER_MODE)

launcher/dependencies/CMakeLists.txt

@@ -0,0 +1,4 @@
+project(launcher-dependencies)
+
+# PatchELF
+add_subdirectory(patchelf)

launcher/dependencies/patchelf/CMakeLists.txt

@@ -0,0 +1,14 @@
+project(patchelf)
+
+# Silence Warnings
+add_compile_options(-w)
+
+## PatchELF
+
+# Build
+add_executable(patchelf src/src/patchelf.cc)
+target_compile_definitions(patchelf PRIVATE -D_FILE_OFFSET_BITS=64)
+set_target_properties(patchelf PROPERTIES CXX_STANDARD 17)
+
+# Install
+install(TARGETS patchelf DESTINATION "${MCPI_BIN_DIR}")

launcher/dependencies/patchelf/src

@@ -0,0 +1 @@
+Subproject commit 734daa3d0f79cf1a0c81f927d846ace5d6a2c8e1

launcher/src/patchelf.c

@@ -72,8 +72,9 @@ static void duplicate_mcpi_executable(const char *original_path, char *new_path)
             "--remove-needed", "libbcm_host.so", \
             "--remove-needed", "libX11.so.6", \
             "--remove-needed", "libEGL.so", \
-            "--replace-needed", "libGLESv2.so", "libGLESv1_CM.so.1", \
-            "--replace-needed", "libSDL-1.2.so.0", "libmedia-layer-core.so", \
+            "--remove-needed", "libGLESv2.so", \
+            "--remove-needed", "libSDL-1.2.so.0", \
+            "--add-needed", "libmedia-layer-core.so", \
             new_path, \
             NULL \
         }; \

media-layer/core/gles/CMakeLists.txt

@@ -1,19 +1,19 @@
 project(media-layer-gles)
 
 # Build
-if(NOT MCPI_HEADLESS_MODE)
-    if(MCPI_USE_GLES1_COMPATIBILITY_LAYER)
-        # GLESv1_CM Compatibility Layer
-        set(GLES_SRC src/compatibility-layer/state.c src/compatibility-layer/passthrough.c src/compatibility-layer/matrix.c src/compatibility-layer/draw.c src/compatibility-layer/buffer.cpp)
-    else()
-        # Passthrough To glfwGetProcAddress()
-        set(GLES_SRC src/passthrough.c)
-    endif()
-    add_library(GLESv1_CM SHARED ${GLES_SRC})
-    target_link_libraries(GLESv1_CM PRIVATE glfw PUBLIC reborn-util PRIVATE dl PRIVATE m)
-else()
+if(MCPI_HEADLESS_MODE)
     # Stubs For Headless Mode
-    add_library(GLESv1_CM SHARED src/stubs.c)
+    set(GLES_SRC src/stubs.c)
+elseif(MCPI_USE_GLES1_COMPATIBILITY_LAYER)
+    # GLESv1_CM Compatibility Layer
+    set(GLES_SRC src/compatibility-layer/state.c src/compatibility-layer/passthrough.c src/compatibility-layer/matrix.c src/compatibility-layer/draw.c src/compatibility-layer/buffer.cpp)
+else()
+    # Passthrough To glfwGetProcAddress()
+    set(GLES_SRC src/passthrough.c)
+endif()
+add_library(GLESv1_CM SHARED ${GLES_SRC})
+if(NOT MCPI_HEADLESS_MODE)
+    target_link_libraries(GLESv1_CM PRIVATE glfw PUBLIC reborn-util PRIVATE dl PRIVATE m)
 endif()
 
 # Common

media-layer/proxy/CMakeLists.txt

@@ -19,6 +19,4 @@ elseif(BUILD_ARM_COMPONENTS)
     # Install
     install(TARGETS media-layer-core DESTINATION "${MCPI_LIB_DIR}")
     install(TARGETS media-layer-core EXPORT sdk DESTINATION "${MCPI_SDK_LIB_DIR}")
-    # Symlink GLESv1_CM To Media Layer Proxy Server
-    install_symlink("libmedia-layer-core.so" "${MCPI_LIB_DIR}/libGLESv1_CM.so.1")
 endif()