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07-16-2009 06:09 PM
07-16-2009 06:09 PM
a question about system call pstat() in kernel
In kernel, where is the system call function pstat() get information to return to application layer?
1 REPLY 1
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07-16-2009 11:09 PM
07-16-2009 11:09 PM
Re: a question about system call pstat() in kernel
it uses the user level 2nd parameter which is a pointer to a user space buffer of current process.
in the kernel, pstat() get a pointer to a kernel space address which points to a structure containing all the 4 parameters.
the 2nd param is the user space buffer address
passed by user space.
in the kernel, pstat() get a pointer to a kernel space address which points to a structure containing all the 4 parameters.
the 2nd param is the user space buffer address
passed by user space.
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