Add C toolchain

program/CMakeLists.txt

@@ -0,0 +1,8 @@
+cmake_minimum_required(VERSION 3.10)
+
+project(riscv-program C)
+
+set(CMAKE_C_FLAGS "-Os -g -Wall -ffunction-sections")
+set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -nostartfiles -fno-exceptions -Xlinker)
+
+add_executable(${PROJECT_NAME} src/main.c)

program/src/main.c

@@ -0,0 +1,3 @@
+int main() {
+	return 0;
+}