Dynamic Debugging in the Linux Kernel: A Powerful Tool for Runtime Debugging
Introduction Previously, we discussed Linux Kernel Debugging: The Powerful printk (Part 2) Linux Kernel Debugging: The Powerful printk (Part 3) In those articles, we introduced pr_debug and dev_dbg. Below is the definition of dev_dbg: #if defined(CONFIG_DYNAMIC_DEBUG) || \ (defined(CONFIG_DYNAMIC_DEBUG_CORE) && defined(DYNAMIC_DEBUG_MODULE)) #define dev_dbg(dev, fmt, …) \ dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__) #elif defined(DEBUG) #define dev_dbg(dev, fmt, …) … Read more