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問我如何 ... ?

1. . /KernelCompilation How do I compile a kernel?

2. . /KernelCrossCompilation How do I cross compile a kernel?

3. . /DisklessImages An Introduction to Diskless Booting.

4. . /HowToApplyAPatch How do I apply a patch?

5. . KernelHackingTools Are there any good IDEs? How do I handle all this code?

6. . /CompileVendorDriver How do I compile a 3rd party device driver ?

7. . /LinuxKernelModuleCompile How can I compile a Linux Kernel Module ?

8. . /LinuxKernelDebug101 Whats the easiest way to debug ?

9. . CareerAdvice How do I get a job as kernel hacker?

10. . UpstreamMerge How do I get my code into the upstream kernel?

Kernelnewbies questions

1. . /VariousKernelTrees What are the various kernel trees for ?

2. . /WhereDoIBegin Where do I begin?

3. . /People on KernelNewBies Who can I find on #kernelnewbies?

4. . /DoINeedToKnowAssembler Do I need to know assembler to hack the kernel?
5. . /DoINeedToKnowHardware Do I need to know a lot about hardware to hack the kernel?

6. . DoesNotWork I built my own kernel, but it does not work. What's the problem?

Kernel hacking

1. . /VariousKernelTrees What are the various kernel trees for ?

2. . /System.map What is the System.map file?

3. . /MajorMinor What major/minor does XXX have ?

4. . /CodingStyle What coding style should I use?

5. . /LikelyUnlikely What means the macros likely() and unlikely() ?

6. . /Preemption What does preemption mean ? Is it available under Linux ?

7. . /LibraryFunctionsInKernel Can I use library functions in the kernel ?

8. . /SyscallTrace How do I intercept system calls ?

9. . /LinkedLists How does the kernel implements linked lists?

10. . /WhyWritingFilesFromKernelIsBad Why reading/writing files from the kernel is bad, and how to do otherwise ?

Linux kernel gotchas

1. . /get current How does get_current() work?
2. . /current How does the current macro helps you access your process-related record?

3. . /ExternAndStaticInlineVariable What's the difference between extern and static inline?

4. . /DoWhile0 Why do a lot of #defines in the kernel use do { ... } while (0)?

5. . /LikelyUnlikely What do the macros likely() and unlikely() mean?

6. . /ContainerOf What is container_of ? How does it work ?

7. . /InitExitMacros What are the init and exit macros ?

8. . /WhereIs bad udelay Now, where is bad_udelay defined?

9. . /asmlinkage What is asmlinkage ?
10. . /down What is that jmp 1b doing out there?

11. . /TestWpBit test_wp_bit magic, or how exception fixups work.

12. . /BUG How does BUG() work?

13. . /StackTrace

    1. Why is there a function on my stack trace that does not get called?
    2. How do I manually get a stack trace?

14. . BootSectorAndKernelImage Why does the kernel no longer directly boot from floppy?

15. . /FastpathAndSlowpath What is the difference between terms: "Fast path" and "Slow path" ?

Hardware Questions

1. . /HyperthreadingDoesNotWork My CPU says it can do hyperthreading. Why do I only see one thread?

   • . CategoryFAQ