![]() LKML (the Linux kernel mailing list), Stack Overflow to ask questions about the kernel and kernel developmentĪnd also read this thread on Unix & Linux, which explains how to locate the implementation of an existing syscall.LXR to browse and search the kernel source.LWN (news about Linux, including many technical articles about the kernel by one of the authors of LDD) The instructions at the new address save your user programs state, figure out what system call you want, call the function in the kernel that implements that.Here are a few useful resources for Linux kernel hackers: ( More details here.) So you now need to look in arch/x86/include rather than include/asm-i386. Interrupts transfer control to the operating system kernel, so software simply needs. Furthermore the i386 and x86_64 architectures were merged into a unified x86 in 2.6.24. A typical way to implement this is to use a software interrupt or trap. If you need the whole source, get a compressed archive from the linux-source-2.6 binary package.Īnother thing is that the directory structure has changed a little over time architecture-dependent headers moved from include/asm-$ARCH to arch/$ARCH/include/asm. Ubuntu ships kernel headers for that purpose in the linux-headers-* packages (which you would normally install via the dependency from the linux-headers-generic metapackage). ![]() If you're only compiling external modules, the headers, which are what you see on your system, are enough. The authors are describing a system with a copy of the kernel source in /usr/src/linux-2.x. Your first difficulty is that you don't have the kernel source installed, only kernel headers. ![]()
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