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[Qemu-devel] [PULL v2 04/22] linux-user: Fix msgrcv() and msgsnd() sysca
From: |
riku . voipio |
Subject: |
[Qemu-devel] [PULL v2 04/22] linux-user: Fix msgrcv() and msgsnd() syscalls support |
Date: |
Tue, 18 Oct 2016 16:21:32 +0300 |
From: Aleksandar Markovic <address@hidden>
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 <address@hidden>
Reviewed-by: Laurent Vivier <address@hidden>
Signed-off-by: Riku Voipio <address@hidden>
---
linux-user/syscall.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index e031ecf..032cb76 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -790,6 +790,9 @@ 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)
--
2.1.4
- [Qemu-devel] [PULL v2 00/22] linux-user changes, riku . voipio, 2016/10/18
- [Qemu-devel] [PULL v2 03/22] linux-user: Fix mq_open() syscall support, riku . voipio, 2016/10/18
- [Qemu-devel] [PULL v2 04/22] linux-user: Fix msgrcv() and msgsnd() syscalls support,
riku . voipio <=
- [Qemu-devel] [PULL v2 02/22] linux-user: Add support for ustat() syscall, riku . voipio, 2016/10/18
- [Qemu-devel] [PULL v2 01/22] linux-user: Add support for adjtimex() syscall, riku . voipio, 2016/10/18
- [Qemu-devel] [PULL v2 07/22] linux-user: Remove a duplicate item from strace.list, riku . voipio, 2016/10/18
- [Qemu-devel] [PULL v2 05/22] linux-user: Fix socketcall() syscall support, riku . voipio, 2016/10/18
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- [Qemu-devel] [PULL v2 12/22] linux-user: use libc wrapper instead of direct mremap syscall, riku . voipio, 2016/10/18
- [Qemu-devel] [PULL v2 13/22] linux-user: Fix definition of target_sigevent for 32-bit guests, riku . voipio, 2016/10/18
- [Qemu-devel] [PULL v2 09/22] linux-user: add kcmp() syscall, riku . voipio, 2016/10/18
- [Qemu-devel] [PULL v2 16/22] linux-user: Update mips_syscall_args[] array in main.c, riku . voipio, 2016/10/18