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inetd: suppress aliasing warning

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function                                             old     new   delta
sigprocmask2                                           -       8      +8
wait_for_child_or_signal                             213     218      +5
dowait                                               424     429      +5
block_CHLD_HUP_ALRM                                   62      59      -3
sigprocmask_SIG_SETMASK                               16       -     -16
------------------------------------------------------------------------------
(add/remove: 1/1 grow/shrink: 2/1 up/down: 18/-19)             Total: -1 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2018-12-08 15:35:24 +01:00
parent 136fe9bede
commit b437df1157
5 changed files with 7 additions and 7 deletions
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4
include/libbb.h
View File

@ -544,8 +544,8 @@ void sig_unblock(int sig) FAST_FUNC;
int sigaction_set(int sig, const struct sigaction *act) FAST_FUNC;
/* SIG_BLOCK/SIG_UNBLOCK all signals: */
int sigprocmask_allsigs(int how) FAST_FUNC;
/* SIG_SETMASK set, and return old set in the same set: */
int sigprocmask_SIG_SETMASK(sigset_t *set) FAST_FUNC;
/* Return old set in the same set: */
int sigprocmask2(int how, sigset_t *set) FAST_FUNC;
/* Standard handler which just records signo */
extern smallint bb_got_signal;
void record_signo(int signo); /* not FAST_FUNC! */

4
libbb/signals.c
View File

@ -31,14 +31,14 @@ int FAST_FUNC sigprocmask_allsigs(int how)
return sigprocmask(how, &set, NULL);
}
int FAST_FUNC sigprocmask_SIG_SETMASK(sigset_t *set)
int FAST_FUNC sigprocmask2(int how, sigset_t *set)
{
// Grr... gcc 8.1.1:
// "passing argument 3 to restrict-qualified parameter aliases with argument 2"
// dance around that...
sigset_t *oset FIX_ALIASING;
oset = set;
return sigprocmask(SIG_SETMASK, set, oset);
return sigprocmask(how, set, oset);
}
void FAST_FUNC bb_signals(int sigs, void (*f)(int))

2
networking/inetd.c
View File

@ -488,7 +488,7 @@ static void block_CHLD_HUP_ALRM(sigset_t *m)
sigaddset(m, SIGCHLD);
sigaddset(m, SIGHUP);
sigaddset(m, SIGALRM);
sigprocmask(SIG_BLOCK, m, m); /* old sigmask is stored in m */
sigprocmask2(SIG_BLOCK, m); /* old sigmask is stored in m */
}
static void restore_sigmask(sigset_t *m)

2
shell/ash.c
View File

@ -4217,7 +4217,7 @@ wait_block_or_sig(int *status)
/* Children exist, but none are ready. Sleep until interesting signal */
#if 1
sigfillset(&mask);
sigprocmask_SIG_SETMASK(&mask); /* mask is updated */
sigprocmask2(SIG_SETMASK, &mask); /* mask is updated */
while (!got_sigchld && !pending_sig)
sigsuspend(&mask);
sigprocmask(SIG_SETMASK, &mask, NULL);

2
shell/hush.c
View File

@ -11442,7 +11442,7 @@ static int wait_for_child_or_signal(struct pipe *waitfor_pipe, pid_t waitfor_pid
* and get stuck in sigsuspend...
*/
sigfillset(&oldset); /* block all signals, remember old set */
sigprocmask_SIG_SETMASK(&oldset);
sigprocmask2(SIG_SETMASK, &oldset);
if (!sigisemptyset(&G.pending_set)) {
/* Crap! we raced with some signal! */