lib/glibc
1
0
Fork 0
mirror of https://sourceware.org/git/glibc.git synced 2025-07-29 11:41:21 +03:00
Code Activity

pselect.c: Pass a pointer to SYSCALL_CANCEL [BZ #26606]

Browse Source 
commit a92f4e6299
Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date:   Mon Jul 6 13:27:12 2020 -0300

    linux: Add time64 pselect support

changed pselect.c to

     r = SYSCALL_CANCEL (pselect6_time64, nfds, readfds, writefds, exceptfds,
			  timeout,
			  ((__syscall_ulong_t[]){ (uintptr_t) sigmask,
						  __NSIG_BYTES }));

which doesn't work with x32's ARGIFY and data passed to syscall isn't
initialized with sigmask and __NSIG_BYTES.  Change to

     __syscall_ulong_t data[2] =
	{
	  (uintptr_t) sigmask, __NSIG_BYTES
	};
      r = SYSCALL_CANCEL (pselect6_time64, nfds, readfds, writefds, exceptfds,
			  timeout, data);

fixes [BZ #26606].
This commit is contained in:
H.J. Lu
2020-09-11 19:36:12 -07:00
parent b8d3e8fbaa
commit 4b564f347f
1 changed files with 6 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
sysdeps/unix/sysv/linux/pselect.c
View File

@ -44,10 +44,13 @@ __pselect64 (int nfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds,
int r; int r;
if (supports_time64 ()) if (supports_time64 ())
{ {
/* NB: This is required by ARGIFY used in x32 internal_syscallN. */
__syscall_ulong_t data[2] =
{
(uintptr_t) sigmask, __NSIG_BYTES
};
r = SYSCALL_CANCEL (pselect6_time64, nfds, readfds, writefds, exceptfds, r = SYSCALL_CANCEL (pselect6_time64, nfds, readfds, writefds, exceptfds,
timeout, timeout, data);
((__syscall_ulong_t[]){ (uintptr_t) sigmask,
__NSIG_BYTES }));
if (r == 0 || errno != ENOSYS) if (r == 0 || errno != ENOSYS)
return r; return r;