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| author | peter <peter@FreeBSD.org> | 2003-04-30 18:06:14 +0000 |
|---|---|---|
| committer | peter <peter@FreeBSD.org> | 2003-04-30 18:06:14 +0000 |
| commit | 6ca367c8548fc5fb3638be2d6eb64d1412737525 (patch) | |
| tree | a00b68c2a7317461b858b7e5a03e15cee7d0aa56 /lib/libc/amd64/net | |
| parent | 09adcd8b3eb9c21fbc4881b6dcc76de2ac5e2e86 (diff) | |
| download | FreeBSD-src-6ca367c8548fc5fb3638be2d6eb64d1412737525.zip FreeBSD-src-6ca367c8548fc5fb3638be2d6eb64d1412737525.tar.gz | |
Update for AMD64-style syscalls. Repocopied from i386/SYS.h.
Note that the syscall instruction clobbers %rcx, which is inconvenient
because it is the fourth syscall argument, so we use %r10 (another scratch
register) for the 4th syscall arg instead (I picked %r10 to be the same as
NetBSD). int 0x80 is still possible though, and it uses %rcx as usual.
Note that the syscall style syscall does *NOT* preserve all the registers,
unlike int 0x80. We do not preserve the scratch registers except for
%rdi and %rsi. int 0x80 does preserve everything but the return values.
Diffstat (limited to 'lib/libc/amd64/net')
0 files changed, 0 insertions, 0 deletions
