x86-64 syscall ABI conventions

To start with the FPC port for x86-64, I've objdumped an empty C prg on an x86-64, and read the abi document on x86-64.org, but don't understand the move rcx,r10 before each syscall. Why is this done? What is exactly saved? If it is a save, where is it restored from r10? E.g. 00402094

md(8) panic

Hi, I am trying to access some ancient 5 1/4 floppies, with 256 byte sectors. Leaving aside the interesting hardware problems, the filesystem on these disks is (surprisingly enough) not supported on -CURRENT. While attempting to write one, I ran: # mdconfig -a -t malloc -S 256 -s 20 Thinking

Re: IPC nsswitch implementation

On Fri, 5 Mar 2004, Michael Bushkov wrote: Some time ago there was a discussion concerning in-process vs. IPC nsswitch implementation. We agreed that we should develop an example of IPC implementation and ask for a discussion. We are glad to present you sample implementation of the IPC