From 3ce34dfb42e02225f2688ef8ad4b9664a4c98e46 Mon Sep 17 00:00:00 2001 From: vibisreenivasan Date: Sat, 16 May 2009 18:32:41 +0530 Subject: linux-user: add tee, splice and vmsplice Add support for tee, splice and vmsplice. Originally from: vibi sreenivasan Riku: squashed patches together, added a test to configure and removed compliler warning by picking up correct type for splice param Signed-off-by: vibisreenivasan Signed-off-by: Riku Voipio --- linux-user/syscall.c | 40 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) (limited to 'linux-user/syscall.c') diff --git a/linux-user/syscall.c b/linux-user/syscall.c index 36eb9f5..fdf74e1 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -6865,6 +6865,46 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1, break; #endif +#ifdef CONFIG_SPLICE +#ifdef TARGET_NR_tee + case TARGET_NR_tee: + { + ret = get_errno(tee(arg1,arg2,arg3,arg4)); + } + break; +#endif +#ifdef TARGET_NR_splice + case TARGET_NR_splice: + { + loff_t loff_in, loff_out; + loff_t *ploff_in = NULL, *ploff_out = NULL; + if(arg2) { + get_user_u64(loff_in, arg2); + ploff_in = &loff_in; + } + if(arg4) { + get_user_u64(loff_out, arg2); + ploff_out = &loff_out; + } + ret = get_errno(splice(arg1, ploff_in, arg3, ploff_out, arg5, arg6)); + } + break; +#endif +#ifdef TARGET_NR_vmsplice + case TARGET_NR_vmsplice: + { + int count = arg3; + struct iovec *vec; + + vec = alloca(count * sizeof(struct iovec)); + if (lock_iovec(VERIFY_READ, vec, arg2, count, 1) < 0) + goto efault; + ret = get_errno(vmsplice(arg1, vec, count, arg4)); + unlock_iovec(vec, arg2, count, 0); + } + break; +#endif +#endif /* CONFIG_SPLICE */ default: unimplemented: gemu_log("qemu: Unsupported syscall: %d\n", num); -- cgit v1.1