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change EXTRA_CFLAGS to Kbuild ccflags-y #67

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Merged
liulog merged 2 commits into from
Jan 19, 2026
Merged

change EXTRA_CFLAGS to Kbuild ccflags-y #67

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4b27e6e
change EXTRA_CFLAGS to Kbuild ccflags-y
liulog Jan 16, 2026
3437861
Fix Makefile syntax for LOONGARCH64 flags
liulog Jan 17, 2026
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19 changes: 9 additions & 10 deletions driver/Makefile
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Original file line number Diff line number Diff line change
@@ -1,38 +1,37 @@
obj-m += hvisor.o
obj-m += ivc.o
EXTRA_CFLAGS += "
ccflags-y += -I$(src)/../include
ccflags-y += -Wno-unused-variable
ccflags-y += -Wno-unused-function
ccflags-y += -fno-stack-protector

ifeq ($(ARCH), arm64)
COMPILE := aarch64-none-linux-gnu-
OBJDUMP := aarch64-none-linux-gnu-objdump
else ifeq ($(ARCH), riscv)
COMPILE := riscv64-unknown-linux-gnu-
OBJDUMP := riscv64-unknown-linux-gnu-objdump
COMPILE := riscv64-linux-gnu-
OBJDUMP := riscv64-linux-gnu-objdump
else ifeq ($(ARCH), loongarch)
COMPILE := loongarch64-unknown-linux-gnu-
OBJDUMP := loongarch64-unknown-linux-gnu-objdump
EXTRA_CFLAGS += -DLOONGARCH64
ccflags-y += -DLOONGARCH64
else ifeq ($(ARCH), x86_64)
COMPILE := x86_64-linux-gnu-
OBJDUMP := x86_64-linux-gnu-objdump
else
COMPILE :=
endif

EXTRA_CFLAGS += -I$(PWD)/include -Wno-unused-variable -Wno-unused-function -fno-stack-protector

ivc-y := ivc_driver.o

.SECONDARY: \
$(obj)/hivc_template.dtb.S \
$(obj)/hivc_template.dtb

EXTRA_CFLAGS += "

.PHONY: all clean

all:
make ARCH=$(ARCH) CROSS_COMPILE=$(COMPILE) -C $(KDIR) M=$(shell pwd) EXTRA_CFLAGS=$(EXTRA_CFLAGS) modules
make ARCH=$(ARCH) CROSS_COMPILE=$(COMPILE) -C $(KDIR) M=$(shell pwd) modules

clean:
make -C $(KDIR) M=$(shell pwd) clean
make -C $(KDIR) M=$(shell pwd) clean
4 changes: 2 additions & 2 deletions driver/hvisor.c
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Original file line number Diff line number Diff line change
Expand Up @@ -321,7 +321,7 @@ static irqreturn_t virtio_irq_handler(int irq, void *dev_id) {
static int __init hvisor_init(void) {
int err;
struct device_node *node = NULL;
u32 *irq;
// u32 *irq;
err = misc_register(&hvisor_misc_dev);
if (err) {
pr_err("hvisor_misc_register failed!!!\n");
Expand Down Expand Up @@ -352,7 +352,7 @@ static int __init hvisor_init(void) {
of_node_put(node);
#else
// we don't use device tree in x86_64, so we have to get IRQ using hypercall
irq = kmalloc(sizeof(u32), GFP_KERNEL);
u32 *irq = kmalloc(sizeof(u32), GFP_KERNEL);
err = hvisor_call(HVISOR_HC_GET_VIRTIO_IRQ, __pa(irq), 0);
virtio_irq = *irq;
err = request_irq(virtio_irq, virtio_irq_handler, IRQF_SHARED,
Expand Down