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; * src/process.c (child_signal_notify): Avoid compiler warning (bug#65919).

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This commit is contained in:
Eli Zaretskii 2023-09-15 09:05:14 +03:00
parent 1442f4043a
commit 160b4c295d
1 changed files with 12 additions and 6 deletions
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18
src/process.c
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@ -7415,10 +7415,14 @@ child_signal_notify (void)
int fd = child_signal_write_fd;
eassert (0 <= fd);
char dummy = 0;
if (emacs_write (fd, &dummy, 1) != 1)
/* This call is commented out. It calls `emacs_perror', which in
turn invokes a localized version of strerror that is not
reentrant and must not be called within a signal handler:
/* We used to error out here, like this:
if (emacs_write (fd, &dummy, 1) != 1)
emacs_perror ("writing to child signal FD");
But this calls `emacs_perror', which in turn invokes a localized
version of strerror, which is not reentrant and must not be
called within a signal handler:
__lll_lock_wait_private () at /lib64/libc.so.6
malloc () at /lib64/libc.so.6
@ -7432,8 +7436,10 @@ child_signal_notify (void)
deliver_process_signal (sig=17, handler=0x6186b0>)
<signal handler called> () at /lib64/libc.so.6
_int_malloc () at /lib64/libc.so.6
in malloc () at /lib64/libc.so.6. */
/* emacs_perror ("writing to child signal FD") */;
in malloc () at /lib64/libc.so.6.
So we no longer check errors of emacs_write here. */
emacs_write (fd, &dummy, 1);
#endif
}