From 1b8f78fe781773a8cbf9839c1fb026b9399183f9 Mon Sep 17 00:00:00 2001
From: Eyck Jentzsch <eyck@minres.com>
Date: Mon, 27 Nov 2023 10:13:22 +0100
Subject: [PATCH] makes build more configurable by CLI

---
 hello-world/Makefile | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/hello-world/Makefile b/hello-world/Makefile
index de5743d..17feac9 100644
--- a/hello-world/Makefile
+++ b/hello-world/Makefile
@@ -2,18 +2,19 @@
 TARGET  = hello
 C_SRCS  = $(wildcard *.c) 
 HEADERS = $(wildcard *.h)
-CFLAGS += -O2 -g 
+OPT ?= -O2
+CFLAGS += $(OPT) -g 
 
 BOARD=iss
 LINK_TARGET=link
-RISCV_ARCH:=rv32i
-RISCV_ABI:=ilp32
+RISCV_ARCH:=rv32e
+RISCV_ABI:=ilp32e
 LDFLAGS += -g -Wl,--wrap=printf
 
-compiler := $(shell which riscv32-unknown-elf-gcc)
+compiler := $(shell which riscv64-unknown-elf-gcc)
 TOOL_DIR=$(dir $(compiler))
 
-TRIPLET=riscv32-unknown-elf
+TRIPLET=riscv64-unknown-elf
 BSP_BASE = ../bare-metal-bsp
 include $(BSP_BASE)/env/common-gcc.mk