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-rw-r--r--linux-user/syscall.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 7b77503f94..acb004f035 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -5453,6 +5453,8 @@ static IOCTLEntry ioctl_entries[] = {
{ TARGET_ ## cmd, cmd, #cmd, access, 0, { __VA_ARGS__ } },
#define IOCTL_SPECIAL(cmd, access, dofn, ...) \
{ TARGET_ ## cmd, cmd, #cmd, access, dofn, { __VA_ARGS__ } },
+#define IOCTL_IGNORE(cmd) \
+ { TARGET_ ## cmd, 0, #cmd },
#include "ioctls.h"
{ 0, 0, },
};
@@ -5484,6 +5486,10 @@ static abi_long do_ioctl(int fd, int cmd, abi_long arg)
#endif
if (ie->do_ioctl) {
return ie->do_ioctl(ie, buf_temp, fd, cmd, arg);
+ } else if (!ie->host_cmd) {
+ /* Some architectures define BSD ioctls in their headers
+ that are not implemented in Linux. */
+ return -TARGET_ENOSYS;
}
switch(arg_type[0]) {