A Linux kernel syscall implementation tracker (syscalls.mebeim.net)

Article summary

The article presents a Linux kernel syscall implementation tracker, which provides a database of syscall tables for different architectures and kernel versions. The tracker is powered by Systrack and offers a JSON table of syscall information. The website aims to provide a convenient way to access syscall information, which is often scattered across various sources. The tracker's author plans to add support for more architectures, including RISC-V and s390x.

Main themes

• Linux kernel syscalls
• Syscall tracking
• Architecture support
• Kernel development
• System call implementation

What commenters say

• The Linux man pages do not provide syscall numbers, which can be found in published tables on the internet or in the Linux kernel tree.
• Some syscalls are not properly documented or do not have wrapper functions, making it difficult to find information about them.
• The syscall numbers and implementations can vary across different architectures, making it challenging to develop cross-platform applications.
• The website's reliance on JavaScript may limit its accessibility for users with JavaScript disabled, but the underlying JSON tables are still available.
• The Linux kernel's syscall implementation is complex and has historical quirks, making it difficult to maintain and extend.
• The syscall numbers were renumbered in x86_64 to improve performance by grouping frequently used syscalls together in the same cacheline.
• There is a need for a Windows syscall tracker similar to the one presented for Linux.
• The website's author plans to add support for more architectures, but it requires significant work and effort.