Resources

• In "Access the Linux kernel using the /proc filesystem" (developerWorks, March 2006), learn how to develop kernel code that uses the /proc file system for user-space/kernel communication.
  
  
• Read "Sysenter Based System Call Mechanism in Linux 2.6" from Manugarg to get a detailed look at the system call gate between the user-space application and the kernel. This paper focuses on the transition mechanisms provided in the 2.6 kernel.
  
  
• This paper details the assembly language linkages between the user-space and the kernel.
  
  
• The GNU C Library (glibc) is the standard library for GNU C. You'll find the glibc for Linux and also for numerous other operating systems. The GNU C Library follows numerous standards, including the ISO C 99, POSIX, and UNIX98. You can find more information about it at the GNU Project.
  
  
• The Linux syscalls man page gives a complete list of system calls available in Linux.
  
  
• Wikipedia provides an interesting perspective on system calls, including history and typical implementations.
  
  
• While a bit dated, a Kernel application program interface (API) is provided that documents many of the kernel functions available for general (in-kernel) use. This includes the user-space memory-management functions as well as many others.
  
  
• In the developerWorks Linux zone, find more resources for Linux developers.
  
  
• Stay current with developerWorks technical events and Webcasts.

• Order the SEK for Linux, a two-DVD set containing the latest IBM trial software for Linux from DB2®, Lotus®, Rational®, Tivoli®, and WebSphere®.
  
  
• With IBM trial software, available for download directly from developerWorks, build your next development project on Linux.
  
  

• Check out developerWorks blogs and get involved in the developerWorks community.
  
  

About the author

		M. Tim Jones is an embedded software architect and the author of GNU/Linux Application Programming, AI Application Programming, and BSD Sockets Programming from a Multilanguage Perspective. His engineering background ranges from the development of kernels for geosynchronous spacecraft to embedded systems architecture and networking protocols development. Tim is a Consultant Engineer for Emulex Corp. in Longmont, Colorado.

原文链接: http://www-128.ibm.com/developerworks/linux/library/l-system-calls/?ca=dgr-lnxw09LinuxSCI