# risc-v-gsp-rm-debugger injected-service SDK: builds a position-independent RV64 blob.
#
# The service ELF is linked at address 0 and loaded by the injector at a
# runtime address; all code is PC-relative (medany + PIC, no globals), so no
# dynamic relocations are required.  Verify with: llvm-readelf-18 -r build/*.elf

CC  := clang
LLD ?= $(shell command -v ld.lld 2>/dev/null || echo /usr/lib/llvm-18/bin/ld.lld)
BUILD := build
TARGET := $(BUILD)/injected_demo.elf

CFLAGS := --target=riscv64-unknown-elf -march=rv64imac -mabi=lp64 \
          -mcmodel=medany -mno-relax -fPIC -ffreestanding -nostdlib \
          -fno-builtin -fno-stack-protector -fno-asynchronous-unwind-tables \
          -O2 -Wall -Wextra -I.

.PHONY: all clean relocs

all: $(TARGET)

$(TARGET): injected_demo.c greeneye_service.h
	@mkdir -p $(BUILD)
	$(CC) $(CFLAGS) -c injected_demo.c -o $(BUILD)/injected_demo.o
	$(LLD) -m elf64lriscv --no-relax -e ge_demo_service_dispatch \
	    -o $@ $(BUILD)/injected_demo.o
	@echo "built $@"

relocs: $(TARGET)
	@llvm-readelf-18 -r $(TARGET) 2>/dev/null || readelf -r $(TARGET)

clean:
	rm -rf $(BUILD)