Messages in this thread | ![/](/images/icornerl.gif) | | Subject | Re: system calls | From | Robert Love <> | Date | Sat, 29 Jan 2005 12:47:38 -0500 |
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On Sat, 2005-01-29 at 10:53 -0300, Rodrigo Ramos wrote:
> I would like to know how many groups of system calls are there at Linux > 2.4 and 2.6? Where can I find these informations in the Kernel?
I don't know what you mean by groups (a nonempty set G with binary operation * s.t. G is associativity, there exists e in G s.t. e*a=a*e=a, and there exists i in G s.t. i*b=b*i=e?).
System calls are implemented per-architecture. You can see the list at the bottom of arch/i386/kernel/entry.S. There is about 290.
System calls are prefixed by "sys_". Thus, read(2) is implemented in the kernel as sys_read(). It, for example, can be found in fs/read_write.c.
Hope this helps.
Robert Love
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