How to Print to Console (Terminal) inside a system call

how can i print something (for debugging purpose) to console inside a linux system call?

Or is there any not very dif开发者_StackOverflow社区fucult way of debugging kernel code?

thanks

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The accepted way of printing inside the kernel is via printk().

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You should also check the different modifiers to printk (such as KERNEL_DEBUG) which will control where/how the messages are printed, including whether they are printed to all active terminals or just the system buffer