Makefile

# Build runtime_bridge.so -- the LD_PRELOAD library.
#
# The bridge is a shared object with C-linkage exports. It is designed to be
# preloaded into an IL2CPP-hosted process; on startup it locates GameAssembly.so
# in /proc/self/maps, dlopens it with RTLD_NOLOAD, and resolves the il2cpp_*
# runtime exports via dlsym.
#
# Usage from a target host:
#     LD_PRELOAD=./runtime_bridge.so ./target_binary
#
# The default target module name is "GameAssembly.so" (standard Unity Linux
# output). Override via the BRIDGE_TARGET_MODULE env var if the process uses
# a different name.

CXX      ?= g++
CXXFLAGS ?= -std=c++17 -O2 -Wall -Wextra -fPIC -fvisibility=hidden
LDFLAGS  ?= -shared -ldl -lpthread

TARGET   := runtime_bridge.so
SRC      := src/runtime_bridge.cpp
INC      := -Iinclude

.PHONY: all clean

all: $(TARGET)

$(TARGET): $(SRC) include/runtime_bridge_api.h
	$(CXX) $(CXXFLAGS) $(INC) $(SRC) -o $@ $(LDFLAGS)

clean:
	rm -f $(TARGET)