linux-user: Make ipc syscall's third argument an abi_long
For those target ABIs that use the ipc system call (e.g. POWER),
the third argument is used in the shmat path as a pointer. It
therefore must be declared as an abi_long (versus int) so that
the address bits are not lost in truncation. In fact, all arguments
to do_ipc should be declared as abit_long.
In fact, it makes more sense for all of the arguments to be declaried
as abi_long (except call).
Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 39ab4c7..fa8ba8f 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -3130,8 +3130,8 @@
#ifdef TARGET_NR_ipc
/* ??? This only works with linear mappings. */
/* do_ipc() must return target values and target errnos. */
-static abi_long do_ipc(unsigned int call, int first,
- int second, int third,
+static abi_long do_ipc(unsigned int call, abi_long first,
+ abi_long second, abi_long third,
abi_long ptr, abi_long fifth)
{
int version;
@@ -3153,9 +3153,9 @@
/* The semun argument to semctl is passed by value, so dereference the
* ptr argument. */
abi_ulong atptr;
- get_user_ual(atptr, (abi_ulong)ptr);
+ get_user_ual(atptr, ptr);
ret = do_semctl(first, second, third,
- (union target_semun)(abi_ulong) atptr);
+ (union target_semun) atptr);
break;
}
