我刚开始从事内核模块编程，我很难让 makefile 正确编译 c 文件。我正在使用 Manjaro 5.4
当我make在与代码和此 Makefile 相同的目录中执行时：
obj-m += hello1.o
PATH = /usr/lib/modules/$(shell uname -r)/build
all:
$(MAKE) -C $(PATH) M=$(PWD) modules
clean:
$(MAKE) -C $(PATH) M=$(PWD) clean
我得到的输出
make -C /usr/lib/modules/5.4.67-1-MANJARO/build M=/home/aidan/Documents/kernelProgramming/hw2 modules
make: make: No such file or directory
make: *** [Makefile:7: all] Error 127
我检查了我是否安装了所有正确的标头
pacman -Qs "^linux"
local/cpupower 5.7-1 (linux-tools)
Linux kernel tool to examine and tune power saving related features of your processor
local/efibootmgr 17-2
Linux user-space application to modify the EFI Boot Manager
local/flatpak 1.8.1-1
Linux application sandboxing and distribution framework (formerly xdg-app)
local/iptables 1:1.8.5-2
Linux kernel packet control tool (using legacy interface)
local/keyutils 1.6.3-1
Linux Key Management Utilities
local/kmod 27-2
Linux kernel module management tools and library
local/ladspa 1.15-2
Linux Audio Developer's Simple Plugin API (LADSPA)
local/lib32-keyutils 1.6.3-1
Linux Key Management Utilities (32-bit)
local/liburing 0.7-2
Linux-native io_uring I/O access library
local/linux-api-headers 5.8-1
Kernel headers sanitized for use in userspace
local/linux-firmware 20200923.r1716.afbfb5f-1
Firmware files for Linux (Manjaro Overlay Package)
local/linux-lts-headers 1:5.4-3
Header files and scripts for building modules for the latest LTS kernel (metapackage)
local/linux54 5.4.67-1
The Linux54 kernel and modules
local/linux54-headers 5.4.67-1
Header files and scripts for building modules for Linux54 kernel
local/lirc 1:0.10.1-6
Linux Infrared Remote Control utilities
local/man-pages 5.08-1
Linux man pages
local/python-distro 1.5.0-1
Linux OS platform information API
local/tlp 1.3.1-2
Linux Advanced Power Management
路径/usr/lib/modules/5.4.67-1-MANJARO/build如下所示：
$ ls
arch crypto include kernel mm samples sound virt
block drivers init lib Module.symvers scripts tools
certs fs Kconfig Makefile net security usr
我很困惑，我无法找出它给我这个错误的原因。