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[Qemu-devel] [PATCH v4 05/11] linux-user: Fix msgrcv() and msgsnd() sysc
From: |
Aleksandar Markovic |
Subject: |
[Qemu-devel] [PATCH v4 05/11] linux-user: Fix msgrcv() and msgsnd() syscalls support |
Date: |
Wed, 14 Sep 2016 17:22:03 +0200 |
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>
---
linux-user/syscall.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 7f8ae41..bdc12ae 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -750,6 +750,9 @@ 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)
--
2.9.3
- [Qemu-devel] [PATCH v4 00/11] linux user: Fix assorted Qemu user mode issues, Aleksandar Markovic, 2016/09/14
- [Qemu-devel] [PATCH v4 01/11] linux-user: Add support for adjtimex() syscall, Aleksandar Markovic, 2016/09/14
- [Qemu-devel] [PATCH v4 02/11] linux-user: Add support for clock_adjtime() syscall, Aleksandar Markovic, 2016/09/14
- [Qemu-devel] [PATCH v4 03/11] linux-user: Add support for sysfs() syscall, Aleksandar Markovic, 2016/09/14
- [Qemu-devel] [PATCH v4 04/11] linux-user: Add support for ustat() syscall, Aleksandar Markovic, 2016/09/14
- [Qemu-devel] [PATCH v4 05/11] linux-user: Fix msgrcv() and msgsnd() syscalls support,
Aleksandar Markovic <=
- [Qemu-devel] [PATCH v4 06/11] linux-user: Fix socketcall() syscall support, Aleksandar Markovic, 2016/09/14
- [Qemu-devel] [PATCH v4 07/11] linux-user: Fix syslog() syscall support, Aleksandar Markovic, 2016/09/14
- [Qemu-devel] [PATCH v4 08/11] linux-user: Remove tabs and trailing spaces from linux-user/main.c, Aleksandar Markovic, 2016/09/14
- [Qemu-devel] [PATCH v4 09/11] linux-user: Improve braces-related formatting in linux-user/main.c, Aleksandar Markovic, 2016/09/14
- [Qemu-devel] [PATCH v4 10/11] linux-user: Improve usage of spaces in linux-user/main.c, Aleksandar Markovic, 2016/09/14
- [Qemu-devel] [PATCH v4 11/11] linux-user: Remove a duplicate item from strace.list, Aleksandar Markovic, 2016/09/14
- Re: [Qemu-devel] [PATCH v4 00/11] linux user: Fix assorted Qemu user mode issues, Peter Maydell, 2016/09/14