From da39db63e4468e39bb56d04d191866c5276aa7fa Mon Sep 17 00:00:00 2001 From: Aleksandar Markovic Date: Thu, 22 Sep 2016 18:56:56 +0200 Subject: [PATCH] linux-user: Fix msgrcv() and msgsnd() syscalls support If syscalls msgrcv() and msgsnd() fail, they return E2BIG, EACCES, EAGAIN, EFAULT, EIDRM, EINTR, EINVAL, ENOMEM, or ENOMSG. By examining negative scenarios of these syscalls for Mips, it was established that ENOMSG does not have the same value accross all platforms, but it is nevertheless not included for conversion in the correspondant conversion table defined in linux-user/syscall.c. This is certainly a bug, since it leads to the incorrect emulation of msgrcv() and msgsnd() for scenarios involving ENOMSG. This patch fixes this by extending the conversion table to include ENOMSG. Also, LTP test msgrcv04 will be fixed for some platforms. Signed-off-by: Aleksandar Markovic Reviewed-by: Laurent Vivier Signed-off-by: Riku Voipio --- linux-user/syscall.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/linux-user/syscall.c b/linux-user/syscall.c index 99be4f2f3e..36ca921a7e 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -789,6 +789,9 @@ static uint16_t host_to_target_errno_table[ERRNO_TABLE_SIZE] = { #ifdef ENOTRECOVERABLE [ENOTRECOVERABLE] = TARGET_ENOTRECOVERABLE, #endif +#ifdef ENOMSG + [ENOMSG] = TARGET_ENOMSG, +#endif }; static inline int host_to_target_errno(int err)