linux-user: fix to handle variably sized SIOCGSTAMP with new kernels

The SIOCGSTAMP symbol was previously defined in the
asm-generic/sockios.h header file. QEMU sees that header
indirectly via sys/socket.h

In linux kernel commit 0768e17073dc527ccd18ed5f96ce85f9985e9115
the asm-generic/sockios.h header no longer defines SIOCGSTAMP.
Instead it provides only SIOCGSTAMP_OLD, which only uses a
32-bit time_t on 32-bit architectures.

The linux/sockios.h header then defines SIOCGSTAMP using
either SIOCGSTAMP_OLD or SIOCGSTAMP_NEW as appropriate. If
SIOCGSTAMP_NEW is used, then the tv_sec field is 64-bit even
on 32-bit architectures

To cope with this we must now convert the old and new type from
the target to the host one.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Message-Id: <20190718130641.15294-1-laurent@vivier.eu>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

1 files changed, 28 insertions, 2 deletions

diff --git a/linux-user/syscall_defs.h b/linux-user/syscall_defs.h
index fffa89f..0662270 100644
--- a/linux-user/syscall_defs.h
+++ b/linux-user/syscall_defs.h
@@ -209,16 +209,34 @@ struct target_linger {
     abi_int l_linger;       /* How long to linger for       */
 };
 
+#if defined(TARGET_SPARC64) && !defined(TARGET_ABI32)
+struct target_timeval {
+    abi_long tv_sec;
+    abi_int tv_usec;
+};
+#define target__kernel_sock_timeval target_timeval
+#else
 struct target_timeval {
     abi_long tv_sec;
     abi_long tv_usec;
 };
 
+struct target__kernel_sock_timeval {
+    abi_llong tv_sec;
+    abi_llong tv_usec;
+};
+#endif
+
 struct target_timespec {
     abi_long tv_sec;
     abi_long tv_nsec;
 };
 
+struct target__kernel_timespec {
+    abi_llong tv_sec;
+    abi_llong tv_nsec;
+};
+
 struct target_timezone {
     abi_int tz_minuteswest;
     abi_int tz_dsttime;
@@ -749,8 +767,16 @@ struct target_pollfd {
 #define TARGET_SIOCGPGRP       0x8904
 #endif
 
-#define TARGET_SIOCGSTAMP      0x8906          /* Get stamp (timeval) */
-#define TARGET_SIOCGSTAMPNS    0x8907          /* Get stamp (timespec) */
+#if defined(TARGET_SH4)
+#define TARGET_SIOCGSTAMP_OLD   TARGET_IOR('s', 100, struct target_timeval)
+#define TARGET_SIOCGSTAMPNS_OLD TARGET_IOR('s', 101, struct target_timespec)
+#else
+#define TARGET_SIOCGSTAMP_OLD   0x8906
+#define TARGET_SIOCGSTAMPNS_OLD 0x8907
+#endif
+
+#define TARGET_SIOCGSTAMP_NEW   TARGET_IOR(0x89, 0x06, abi_llong[2])
+#define TARGET_SIOCGSTAMPNS_NEW TARGET_IOR(0x89, 0x07, abi_llong[2])
 
 /* Networking ioctls */
 #define TARGET_SIOCADDRT       0x890B          /* add routing table entry */