概述

內核模塊是Linux提供的一種機制，允許在內核運行時動態加載進內核中，具有兩個特點：

內核模塊本身不編譯入內核映像，有效控制縮減內核鏡像的大小

內核模塊一旦被加載，就和內核中的其他部分完全一樣

內核模塊的作用：

• 設備驅動是以獨立的modules的形式存在的，設計的驅動需要包含在Module內部。Module編譯完成后，會生成ko文件，可安裝可卸載。

ldd:顯示應用程序（二進制程序）所依賴的庫文件

ldd /bin/ls

xilinx 開發版顯示：

root@xilinx-zcu104-2021_1:~# ldd /bin/lslinux-vdso.so.1 (0x0000ffffb2c8b000)libcap.so.2 => /lib/libcap.so.2 (0x0000ffffb2bf6000)libc.so.6 => /lib/libc.so.6 (0x0000ffffb2a87000)/lib/ld-linux-aarch64.so.1 (0x0000ffffb2c5a000)

Unbutu顯示：

jing@jing:/$ ldd /bin/lslinux-vdso.so.1 (0x00007ffdbd070000)libselinux.so.1 => /lib/x86_64-linux-gnu/libselinux.so.1 (0x00007fb403bb0000)libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007fb4037bf000)libpcre.so.3 => /lib/x86_64-linux-gnu/libpcre.so.3 (0x00007fb40354d000)libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007fb403349000)/lib64/ld-linux-x86-64.so.2 (0x00007fb403ffa000)libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007fb40312a000)

lsmod:顯示當前被內核加載的模塊

xilinx開發板顯示：

root@xilinx-zcu104-2021_1:~# lsmod Module Size Used by dmaproxy 16384 0 mali 270336 0 zocl 155648 0 uio_pdrv_genirq 16384 0

modinfo:查看內核模塊的信息，包括開發人員信息，依賴信息

root@xilinx-zcu104-2021_1:~# modinfo dmaproxy filename: /lib/modules/5.10.0-xilinx-v2021.1/extra/dmaproxy/dmaproxy.ko license: GPL v2 description: Xilinx's zynqmp-dma Client Driver author: Jeegar Patel <jeegar.patel@xilinx.com> depends: name: dmaproxy vermagic: 5.10.0-xilinx-v2021.1 SMP mod_unload aarch64

modprobe：向內核增加或者刪除指定模塊，默認是增加模塊，-r刪除模塊

insmod:向內核加載模塊

必須完整給出模塊文件路徑，可以通過modinfo獲取

rmmod:在內核中刪除模塊

附：

Ubuntu顯示：

jing@jing:/$ lsmod Module Size Used by uas 28672 0 usb_storage 77824 1 uas btrfs 1241088 0 xor 24576 1 btrfs zstd_compress 163840 1 btrfs raid6_pq 114688 1 btrfs ufs 81920 0 qnx4 16384 0 hfsplus 110592 0 hfs 61440 0 minix 40960 0 ntfs 106496 0 msdos 20480 0 jfs 192512 0 xfs 1282048 0 cpuid 16384 0 xt_conntrack 16384 1 xt_MASQUERADE 20480 1 nf_conntrack_netlink 45056 0 nfnetlink 16384 2 nf_conntrack_netlink xfrm_user 36864 1 xfrm_algo 16384 1 xfrm_user xt_addrtype 16384 2 iptable_filter 16384 1 iptable_nat 16384 1 nf_nat 40960 2 iptable_nat,xt_MASQUERADE nf_conntrack 139264 4 xt_conntrack,nf_nat,nf_conntrack_netlink,xt_MASQUERADE nf_defrag_ipv6 24576 1 nf_conntrack nf_defrag_ipv4 16384 1 nf_conntrack libcrc32c 16384 4 nf_conntrack,nf_nat,btrfs,xfs bpfilter 24576 0 br_netfilter 28672 0 bridge 176128 1 br_netfilter stp 16384 1 bridge llc 16384 2 bridge,stp aufs 258048 0 overlay 114688 0 intel_rapl_msr 20480 0 nvidia_uvm 987136 2 binfmt_misc 24576 1 nvidia_drm 53248 7 nls_iso8859_1 16384 1 nvidia_modeset 1228800 12 nvidia_drm intel_rapl_common 24576 1 intel_rapl_msr mei_hdcp 24576 0 snd_hda_codec_hdmi 61440 2 snd_sof_pci 20480 0 snd_sof_intel_hda_common 65536 1 snd_sof_pci snd_soc_hdac_hda 24576 1 snd_sof_intel_hda_common snd_sof_intel_hda 20480 1 snd_sof_intel_hda_common snd_sof_intel_byt 20480 1 snd_sof_pci snd_sof_intel_ipc 20480 1 snd_sof_intel_byt snd_sof 98304 4 snd_sof_pci,snd_sof_intel_hda_common,snd_sof_intel_byt,snd_sof_intel_ipc snd_hda_codec_realtek 131072 1 snd_sof_xtensa_dsp 16384 1 snd_sof_pci snd_hda_ext_core 28672 3 snd_sof_intel_hda_common,snd_soc_hdac_hda,snd_sof_intel_hda snd_hda_codec_generic 81920 1 snd_hda_codec_realtek snd_soc_acpi_intel_match 32768 2 snd_sof_pci,snd_sof_intel_hda_common snd_soc_acpi 16384 2 snd_sof_pci,snd_soc_acpi_intel_match ledtrig_audio 16384 3 snd_hda_codec_generic,snd_hda_codec_realtek,snd_sof snd_soc_core 245760 3 snd_sof,snd_sof_intel_hda_common,snd_soc_hdac_hda snd_compress 24576 1 snd_soc_core ac97_bus 16384 1 snd_soc_core snd_pcm_dmaengine 16384 1 snd_soc_core snd_hda_intel 49152 4 x86_pkg_temp_thermal 20480 0 snd_intel_dspcfg 28672 3 snd_hda_intel,snd_sof_pci,snd_sof_intel_hda_common intel_powerclamp 20480 0 snd_hda_codec 135168 5 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec_realtek,snd_soc_hdac_hda coretemp 20480 0 snd_hda_core 90112 9 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_ext_core,snd_hda_codec,snd_hda_codec_realtek,snd_sof_intel_hda_common,snd_soc_hdac_hda,snd_sof_intel_hda nvidia 34168832 762 nvidia_uvm,nvidia_modeset snd_hwdep 20480 1 snd_hda_codec snd_pcm 102400 8 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_sof,snd_sof_intel_hda_common,snd_soc_core,snd_hda_core,snd_pcm_dmaengine mt7601u 110592 0 kvm 659456 0 i915 1982464 4 mac80211 856064 1 mt7601u snd_seq_midi 20480 0 snd_seq_midi_event 16384 1 snd_seq_midi crct10dif_pclmul 16384 1 snd_rawmidi 36864 1 snd_seq_midi crc32_pclmul 16384 0 ghash_clmulni_intel 16384 0 cfg80211 712704 2 mt7601u,mac80211 aesni_intel 372736 0 snd_seq 69632 2 snd_seq_midi,snd_seq_midi_event drm_kms_helper 188416 2 nvidia_drm,i915 crypto_simd 16384 1 aesni_intel cryptd 24576 2 crypto_simd,ghash_clmulni_intel libarc4 16384 1 mac80211 glue_helper 16384 1 aesni_intel snd_seq_device 16384 3 snd_seq,snd_seq_midi,snd_rawmidi joydev 28672 0 input_leds 16384 0 intel_cstate 20480 0 ucsi_ccg 20480 0 snd_timer 36864 2 snd_seq,snd_pcm drm 491520 12 drm_kms_helper,nvidia_drm,i915 typec_ucsi 40960 1 ucsi_ccg eeepc_wmi 16384 0 asus_wmi 32768 1 eeepc_wmi typec 45056 1 typec_ucsi sparse_keymap 16384 1 asus_wmi intel_lpss_pci 20480 0 i2c_algo_bit 16384 1 i915 intel_wmi_thunderbolt 20480 0 fb_sys_fops 16384 1 drm_kms_helper snd 86016 21 snd_hda_codec_generic,snd_seq,snd_seq_device,snd_hda_codec_hdmi,snd_hwdep,snd_hda_intel,snd_hda_codec,snd_hda_codec_realtek,snd_timer,snd_compress,snd_soc_core,snd_pcm,snd_rawmidi intel_lpss 16384 1 intel_lpss_pci syscopyarea 16384 1 drm_kms_helper wmi_bmof 16384 0 mei_me 40960 1 sysfillrect 16384 1 drm_kms_helper idma64 20480 0 sysimgblt 16384 1 drm_kms_helper mei 102400 3 mei_hdcp,mei_me soundcore 16384 1 snd mxm_wmi 16384 0 virt_dma 20480 1 idma64 acpi_tad 16384 0 mac_hid 16384 0 acpi_pad 184320 0 sch_fq_codel 20480 6 parport_pc 40960 0 ppdev 24576 0 lp 20480 0 parport 53248 3 parport_pc,lp,ppdev ip_tables 32768 2 iptable_filter,iptable_nat x_tables 45056 5 xt_conntrack,iptable_filter,xt_addrtype,ip_tables,xt_MASQUERADE autofs4 45056 2 hid_generic 16384 0 usbhid 53248 0 hid 126976 2 usbhid,hid_generic nvme 49152 2 r8169 90112 0 nvme_core 106496 4 nvme ahci 40960 0 realtek 24576 1 i2c_nvidia_gpu 16384 0 libahci 32768 1 ahci wmi 32768 4 intel_wmi_thunderbolt,asus_wmi,wmi_bmof,mxm_wmi video 49152 2 asus_wmi,i915

總結

以上是生活随笔為你收集整理的学习记录-Linux内核模块查看命令的全部內容，希望文章能夠幫你解決所遇到的問題。

如果覺得生活随笔網站內容還不錯，歡迎將生活随笔推薦給好友。