No attempt is made to emulate it on the host.
Signed-off-by: Andreas Schwab <sch...@suse.de>
---
linux-user/syscall.c | 39 +++++++++++++++++++++++++++++++++++++++
1 file changed, 39 insertions(+)
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 07fb8de921..ff89016adc 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -1033,6 +1033,12 @@ safe_syscall5(int, mq_timedsend, int, mqdes, const char
*, msg_ptr,
safe_syscall5(int, mq_timedreceive, int, mqdes, char *, msg_ptr,
size_t, len, unsigned *, prio, const struct timespec *, timeout)
#endif
+#if defined(TARGET_NR_copy_file_range) && defined(__NR_copy_file_range)
+safe_syscall6(ssize_t, copy_file_range, int, infd, loff_t *, pinoff,
+ int, outfd, loff_t *, poutoff, size_t, length,
+ unsigned int, flags)
+#endif
+
/* We do ioctl like this rather than via safe_syscall3 to preserve the
* "third argument might be integer or pointer or not present" behaviour of
* the libc function.
@@ -12578,6 +12584,39 @@ abi_long do_syscall(void *cpu_env, int num, abi_long
arg1,
ret = get_errno(kcmp(arg1, arg2, arg3, arg4, arg5));
break;
#endif
+#if defined(TARGET_NR_copy_file_range) && defined(__NR_copy_file_range)
+ case TARGET_NR_copy_file_range:
+ {
+ loff_t inoff, outoff;
+ loff_t *pinoff = NULL, *poutoff = NULL;
+
+ if (arg2) {
+ if (get_user_u64(inoff, arg2)) {
+ goto efault;
+ }
+ pinoff = &inoff;
+ }
+ if (arg4) {
+ if (get_user_u64(outoff, arg4)) {
+ goto efault;
+ }
+ poutoff = &outoff;
+ }
+ ret = get_errno (safe_copy_file_range (arg1, pinoff, arg3, poutoff,
+ arg5, arg6));
+ if (arg2) {
+ if (put_user_u64(inoff, arg2)) {
+ goto efault;
+ }
+ }
+ if (arg4) {
+ if (put_user_u64(outoff, arg4)) {
+ goto efault;
+ }
+ }
+ }
+ break;
+#endif
default:
unimplemented:
--
2.16.1
--
Andreas Schwab, SUSE Labs, sch...@suse.de
GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE 1748 E4D4 88E3 0EEA B9D7
"And now for something completely different."
