还有一个问题：在尝试构建多文件模块时,您不能拥有与模块同名的C文件.将mymod.c重命名为mymod-core.c
然后,以下应该工作：
obj-m := mymod.o
mymod-objs := mymod-core.o mymod_test_interfaces.gen.o
$(obj)/mymod_test_interfaces.gen.c: $(src)/mymod_test.h $(src)/generate_testapi.py
$(src)/generate_testapi.py < $(src)/mymod_test.h > $@
我实际上测试了以下内容：
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
index 4387ccb79e64..47fdc3a73c75 100644
--- a/drivers/misc/Makefile
+++ b/drivers/misc/Makefile
@@ -71,3 +71,8 @@ OBJCOPYFLAGS_lkdtm_rodata_objcopy.o := \
--rename-section .text=.rodata
$(obj)/lkdtm_rodata_objcopy.o: $(obj)/lkdtm_rodata.o
$(call if_changed,objcopy)
+
+obj-m := mymod.o
+mymod-objs := mymod-core.o mymod_test_interfaces.gen.o
+$(obj)/mymod_test_interfaces.gen.c:
+ echo "int variable;" > $@
diff --git a/drivers/misc/mymod-core.c b/drivers/misc/mymod-core.c
new file mode 100644
index 000000000000..b39aa4b9ae8d
--- /dev/null
+++ b/drivers/misc/mymod-core.c
@@ -0,0 +1,19 @@
+#include
+#include
+
+extern int mymod_variable;
+
+static int mymod_probe(struct platform_device *pdev)
+{
+ mymod_variable = 2;
+
+ return 0;
+}
+
+static struct platform_driver mymod_driver = {
+ .driver = {
+ .name = "mymod",+ },+ .probe = mymod_probe,+};
+module_platform_driver(mymod_driver);
它恰当地导致：
$make
CHK include/config/kernel.release
CHK include/generated/uapi/linux/version.h
CHK include/generated/utsrelease.h
CHK include/generated/bounds.h
CHK include/generated/timeconst.h
CHK include/generated/asm-offsets.h
CALL scripts/checksyscalls.sh
CHK include/generated/compile.h
CC [M] drivers/misc/mymod-core.o
echo "int variable;" > drivers/misc/mymod_test_interfaces.gen.c
CC [M] drivers/misc/mymod_test_interfaces.gen.o
LD [M] drivers/misc/mymod.o
LD arch/x86/boot/compressed/vmlinux
ZOFFSET arch/x86/boot/zoffset.h
AS arch/x86/boot/header.o
LD arch/x86/boot/setup.elf
OBJCOPY arch/x86/boot/setup.bin
OBJCOPY arch/x86/boot/vmlinux.bin
BUILD arch/x86/boot/bzImage
