然后在菜单中找到以下选项并启用它们:Kernel hacking -> Dynamic debug -> Enable dynamic printk() support Kernel hacking -> Debug filesystem -> Debug Filesystem挂载调试文件系统: 在内核启动后,你需要挂载调试文件系统(debugfs)以便访问动态调试控制文件。 bash m
Subsequently, we refer to the control file as: <debugfs>/dynamic_debug/control. For example, if you want to enable printing from source file 'svcsock.c', line 1603 you simply do: 1:nullarbor:~ # echo'file svcsock.c line 1603 +p'> 2:<debugfs>/dynamic_debug/control If you make a ...
Could somebody explain to newbie like me how to enable the dev_dbg messages as defined in device.h? I understand that the DEBUG variable must be set, but enabling various options in "Kernel hacking" of menuconfig was not successful so far. If I manually define DEBUG in device.h, then I...
printk and dmesg options ---> [*] Enable dynamic printk() support 在[*] Enable dynamic printk() support 上点击h,可以看到帮助信息。 我们以pr_debug为例分析, 1:#defineDEFINE_DYNAMIC_DEBUG_METADATA(name, fmt) \ 2:staticstruct_ddebug __aligned(8) \ 3:__attribute__((section("__verbose"...
Hello, I'm modifying the xilinxfb.c driver to work with a custom tft lcd controller pcore and I need to see the debug messages when the target board is booting. I do not know how to enable output of dev_dbg() though. Any help would be appreciated.<
在[*] Enable dynamic printk() support 上点击h,可以看到帮助信息。 我们以pr_debug为例分析, 1: #define DEFINE_DYNAMIC_DEBUG_METADATA(name, fmt) \ 1. 2: static struct _ddebug __aligned(8) \ 1. 3: __attribute__((section("__verbose"))) name = { \ ...
bootargs = "sched_enable_hmp=1 sched_enable_power_aware=1 snd_soc_wcd_mbhc.dyndbg=\"file wcd-mbhc-v2.c +p\" snd_soc_tfa98xx.dyndbg=\"file tfa98xx.c +p; file tfa_dsp.c +p\""; }; 1. 2. 3. 以snd_soc_tfa98xx.dyndbg=\"file tfa98xx.c +p; file tfa_dsp.c +p\" ...
在[*] Enable dynamic printk() support 上点击h,可以看到帮助信息。 我们以pr_debug为例分析, 1:#defineDEFINE_DYNAMIC_DEBUG_METADATA(name, fmt) \ 2:staticstruct_ddebug __aligned(8) \ 3:__attribute__((section("__verbose"))) name = { \ ...