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linux-user: fix undefined shift in copy_to_user_fdset 

If TARGET_ABI_BITS is bigger than 32 we shift by more than the size of int.

Signed-off-by: Andreas Schwab <schwab@suse.de>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
This commit is contained in:
Andreas Schwab 2013-04-09 01:02:34 +00:00 committed by Riku Voipio
parent c7128c9fd5
commit 9ab709be59
1 changed files with 1 additions and 1 deletions
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2
linux-user/syscall.c
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@ -914,7 +914,7 @@ static inline abi_long copy_to_user_fdset(abi_ulong target_fds_addr,
for (i = 0; i < nw; i++) {
v = 0;
for (j = 0; j < TARGET_ABI_BITS; j++) {
v |= ((FD_ISSET(k, fds) != 0) << j);
v |= ((abi_ulong)(FD_ISSET(k, fds) != 0) << j);
k++;
}
__put_user(v, &target_fds[i]);