motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-03 07:43:54 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

linux-user: emulate msgsnd(), msgrcv() and semtimedop()

Browse source 
When we have updated kernel headers to 5.2-rc1 we have introduced
new syscall numbers that can be not supported by older kernels
and fail with ENOSYS while the guest emulation succeeded before
because the syscalls were emulated with ipc().

This patch fixes the problem by using ipc() if the new syscall
returns ENOSYS.

Fixes: 86e636951d ("linux-user: fix __NR_semtimedop undeclared error")
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Message-Id: <20190529084804.25950-1-laurent@vivier.eu>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
This commit is contained in:
Laurent Vivier 2019-05-29 10:48:04 +02:00
parent f3a8bdc1d5
commit 524fa3408e
2 changed files with 31 additions and 31 deletions
Download patch file Download diff file Expand all files Collapse all files

1
linux-user/syscall_defs.h
View file

@ -32,6 +32,7 @@
#define TARGET_SYS_RECVMMSG 19 /* recvmmsg() */
#define TARGET_SYS_SENDMMSG 20 /* sendmmsg() */
#define IPCOP_CALL(VERSION, OP) ((VERSION) << 16 | (OP))
#define IPCOP_semop 1
#define IPCOP_semget 2
#define IPCOP_semctl 3