Makefile: remove unused variables and targets

scripts/isa/riscv.mk

@@ -1,4 +1,3 @@
-CROSS_COMPILE := riscv64-linux-gnu-
 AM_CFLAGS        += -static -fno-pic -march=rv64g -mcmodel=medany  -mstrict-align
 AM_ASFLAGS       += -static -fno-pic -march=rv32g_zicsr -mcmodel=medany -O0
 AM_LDFLAGS       += -melf64lriscv -O2

scripts/platform/nemu.mk

@@ -10,21 +10,14 @@ AM_SRCS := am/src/platform/nemu/trm.c \
 AM_PUBLIC_CFLAGS := -fdata-sections -ffunction-sections
 AM_PUBLIC_LDFLAGS := --defsym=_pmem_start=0x80000000 --defsym=_entry_offset=0x0 \
                      --gc-sections --entry=_start
-AM_CFLAGS += $(AM_PUBLIC_CFLAGS)
+AM_CFLAGS += $(AM_PUBLIC_CFLAGS) -DMAINARGS=\"$(mainargs)\"
 AM_LDFLAGS += -T$(AM_HOME)/scripts/linker.ld $(AM_PUBLIC_LDFLAGS)
+AM_INCPATH += $(AM_HOME)/am/src/platform/nemu/include
 
 AM_INTERFACE_CFLAGS += $(AM_PUBLIC_CFLAGS)
 AM_INTERFACE_LDFLAGS += -T$(LIB_INSTALLDIR)/ldscripts/linker.ld $(AM_PUBLIC_LDFLAGS)
-
-AM_CFLAGS += -DMAINARGS=\"$(mainargs)\"
-AM_INCPATH += $(AM_HOME)/am/src/platform/nemu/include
 .PHONY: $(AM_HOME)/am/src/platform/nemu/trm.c
 
-image: $(IMAGE).elf
-	@$(OBJDUMP) -d $(IMAGE).elf > $(IMAGE).txt
-	@echo + OBJCOPY "->" $(IMAGE_REL).bin
-	@$(OBJCOPY) -S --set-section-flags .bss=alloc,contents -O binary $(IMAGE).elf $(IMAGE).bin
-
 NEMUFLAGS += -b 
 #-l $(shell dirname $(IMAGE).elf)/nemu-log.txt 
 

scripts/riscv32-nemu.mk

@@ -1,7 +1,7 @@
 include $(AM_HOME)/scripts/isa/riscv.mk
 include $(AM_HOME)/scripts/platform/nemu.mk
-AM_CFLAGS  += -DISA_H=\"riscv/riscv.h\" -march=rv32im_zicsr -mabi=ilp32  # overwrite
-AM_LDFLAGS += -melf32lriscv                   # overwrite
+AM_CFLAGS  += -DISA_H=\"riscv/riscv.h\" -march=rv32im_zicsr -mabi=ilp32
+AM_LDFLAGS += -melf32lriscv
 
 AM_SRCS += am/src/riscv/nemu/start.S \
            am/src/riscv/nemu/cte.c \