Le 07/02/2018 à 10:49, address@hidden a écrit :
Hi,
This series failed build test on s390x host. Please find the details
below.
...
CC aarch64_be-linux-user/linux-user/syscall.o
In file included from
/var/tmp/patchew-tester-tmp-ewjgn083/src/linux-user/qemu.h:16:0,
from
/var/tmp/patchew-tester-tmp-ewjgn083/src/linux-user/syscall.c:118:
/var/tmp/patchew-tester-tmp-ewjgn083/src/linux-user/syscall.c: In
function ‘do_sendrecvmsg_locked’:
/var/tmp/patchew-tester-tmp-ewjgn083/src/linux-user/syscall_defs.h:308:61:
error: ‘tgt_len’ may be used uninitialized in this function
[-Werror=maybe-uninitialized]
#define TARGET_CMSG_LEN(len) (sizeof(struct target_cmsghdr) + (len))
^
/var/tmp/patchew-tester-tmp-ewjgn083/src/linux-user/syscall.c:1797:13:
note: ‘tgt_len’ was declared here
int tgt_len, tgt_space;
^~~~~~~
it seems gcc disagrees with Coverity...
I think this should fixed like:
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 74378947f0..d7fbe334eb 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -1824,8 +1824,10 @@ static inline abi_long
host_to_target_cmsg(struct
target_msghdr *target_msgh,
tgt_len = sizeof(struct target_timeval);
break;
default:
+ tgt_len = len;
break;