riscv
/
glibc
mirror of https://gitee.com/Nocallback/glibc.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity
Browse Source

Update. 

2003-04-21  Ulrich Drepper  <drepper@redhat.com>

	* sysdeps/unix/sysv/linux/sigprocmask.c: Prevent changing mask for
	SIGCANCEL.
	* sysdeps/unix/sysv/linux/alpha/bits/siginfo.h: Define SI_TKILL.
	* sysdeps/unix/sysv/linux/bits/siginfo.h: Define SI_TKILL.
	* sysdeps/unix/sysv/linux/ia64/bits/siginfo.h: Define SI_TKILL.
	* sysdeps/unix/sysv/linux/s390/bits/siginfo.h: Define SI_TKILL.
	* sysdeps/unix/sysv/linux/sparc/bits/siginfo.h: Define SI_TKILL.

	first syscall parameter to const char*.
cvs/fedora-2_3-branch
Ulrich Drepper 23 years ago
parent
a4faf24354
commit
e7608d7789
15 changed files with 102 additions and 57 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Split View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 12
      ChangeLog
  2. 13
      nptl/ChangeLog
  3. 10
      nptl/init.c
  4. 6
      nptl/pthreadP.h
  5. 35
      nptl/sysdeps/pthread/pthread_sigmask.c
  6. 2
      nptl/sysdeps/pthread/sigaction.c
  7. 20
      nptl/sysdeps/pthread/sigprocmask.c
  8. 2
      nptl/sysdeps/unix/sysv/linux/allocrtsig.c
  9. 24
      nptl/sysdeps/unix/sysv/linux/timer_routines.c
  10. 4
      sysdeps/unix/sysv/linux/alpha/bits/siginfo.h
  11. 4
      sysdeps/unix/sysv/linux/bits/siginfo.h
  12. 4
      sysdeps/unix/sysv/linux/ia64/bits/siginfo.h
  13. 4
      sysdeps/unix/sysv/linux/s390/bits/siginfo.h
  14. 15
      sysdeps/unix/sysv/linux/sigprocmask.c
  15. 4
      sysdeps/unix/sysv/linux/sparc/bits/siginfo.h

12
ChangeLog
View File

@ -1,7 +1,17 @@
2003-04-21 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/sigprocmask.c: Prevent changing mask for
SIGCANCEL.
* sysdeps/unix/sysv/linux/alpha/bits/siginfo.h: Define SI_TKILL.
* sysdeps/unix/sysv/linux/bits/siginfo.h: Define SI_TKILL.
* sysdeps/unix/sysv/linux/ia64/bits/siginfo.h: Define SI_TKILL.
* sysdeps/unix/sysv/linux/s390/bits/siginfo.h: Define SI_TKILL.
* sysdeps/unix/sysv/linux/sparc/bits/siginfo.h: Define SI_TKILL.
2003-04-20 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/not-cancel.h (open_not_cancel): Cast
first syscall parameter to cnst char*.
first syscall parameter to const char*.
2003-04-19 Ulrich Drepper <drepper@redhat.com>

13
nptl/ChangeLog
View File

@ -1,3 +1,16 @@
2003-04-21 Ulrich Drepper <drepper@redhat.com>
* init.c (__pthread_initialize_minimal): Don't block SIGTIMER.
* pthreadP.h: Make SIGTIMER and SIGCANCEL the same.
* sysdeps/pthread/pthread_sigmask.c: Remove handling of SIGTIMER.
* sysdeps/pthread/sigaction.c: Likewise.
* sysdeps/pthread/sigprocmask.c: New file.
* sysdeps/unix/sysv/linux/allocrtsig.c (current_rtmin): Define as
__SIGRTMIN+1.
* sysdeps/unix/sysv/linux/timer_routines.c (timer_helper_thread):
Block SIGTIMER. Also handle SI_TKILL events and terminate thread
in this case.
2003-04-19 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/i386/dl-sysdep.h

10
nptl/init.c
View File

@ -223,16 +223,6 @@ __pthread_initialize_minimal_internal (void)
NULL, _NSIG / 8);
/* The kernel supported POSIX timer handling needs a signal to implement
SIGEV_THREAD. We block the signal everywhere but we have to make
sure it is not ignored. The signal is a realtime signal so using
the default handler is fine (this handler is already selected). */
__sigdelset (&sa.sa_mask, SIGCANCEL);
__sigaddset (&sa.sa_mask, SIGTIMER);
(void) INTERNAL_SYSCALL (rt_sigprocmask, err, 4, SIG_BLOCK, &sa.sa_mask,
NULL, _NSIG / 8);
/* Determine the default allowed stack size. This is the size used
in case the user does not specify one. */
struct rlimit limit;

6
nptl/pthreadP.h
View File

@ -162,8 +162,10 @@ __do_cancel (void)
#define SIGCANCEL __SIGRTMIN
/* Signal needed for the kernel-supported POSIX timer implementation. */
#define SIGTIMER (__SIGRTMIN + 1)
/* Signal needed for the kernel-supported POSIX timer implementation.
We can reuse the cancellation signal since we can distinguish
cancellation from timer expirations. */
#define SIGTIMER SIGCANCEL
/* Internal prototypes. */

35
nptl/sysdeps/pthread/pthread_sigmask.c
View File

@ -32,36 +32,13 @@ pthread_sigmask (how, newmask, oldmask)
sigset_t local_newmask;
/* The only thing we have to make sure here is that SIGCANCEL is not
blocked and that SIGTIMER is not unblocked. */
if (newmask != NULL)
blocked. */
if (newmask != NULL
&& __builtin_expect (__sigismember (newmask, SIGCANCEL), 0))
{
if (__builtin_expect (__sigismember (newmask, SIGCANCEL), 0))
{
local_newmask = *newmask;
__sigdelset (&local_newmask, SIGCANCEL);
newmask = &local_newmask;
}
if (__builtin_expect (__sigismember (newmask, SIGTIMER), 0))
{
if (how == SIG_UNBLOCK)
{
if (newmask != &local_newmask)
local_newmask = *newmask;
__sigdelset (&local_newmask, SIGTIMER);
newmask = &local_newmask;
}
}
else
{
if (how == SIG_SETMASK)
{
if (newmask != &local_newmask)
local_newmask = *newmask;
__sigaddset (&local_newmask, SIGTIMER);
newmask = &local_newmask;
}
}
local_newmask = *newmask;
__sigdelset (&local_newmask, SIGCANCEL);
newmask = &local_newmask;
}
#ifdef INTERNAL_SYSCALL

2
nptl/sysdeps/pthread/sigaction.c
View File

@ -36,7 +36,7 @@ __sigaction (sig, act, oact)
const struct sigaction *act;
struct sigaction *oact;
{
if (sig == SIGCANCEL || sig == SIGTIMER)
if (sig == SIGCANCEL)
{
__set_errno (EINVAL);
return -1;

20
nptl/sysdeps/pthread/sigprocmask.c
View File

@ -0,0 +1,20 @@
/* Copyright (C) 1997,1998,1999,2000,2001,2003 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <nptl/pthreadP.h>
#include <sysdeps/unix/sysv/linux/sigprocmask.c>

2
nptl/sysdeps/unix/sysv/linux/allocrtsig.c
View File

@ -20,7 +20,7 @@
#include <signal.h>
static int current_rtmin = __SIGRTMIN + 2;
static int current_rtmin = __SIGRTMIN + 1;
static int current_rtmax = __SIGRTMAX;

24
nptl/sysdeps/unix/sysv/linux/timer_routines.c
View File

@ -49,6 +49,11 @@ timer_helper_thread (void *arg)
sigset_t ss;
sigemptyset (&ss);
sigaddset (&ss, SIGTIMER);
/* SIGTIMER is the same signal as SIGCANCEL and it is therefore
unblocked so far. Block it for this thread, we handle
cancellation explicitly. */
INTERNAL_SYSCALL_DECL (err);
INTERNAL_SYSCALL (rt_sigprocmask, err, 4, SIG_BLOCK, &ss, NULL, _NSIG / 8);
/* Endless loop of waiting for signals. The loop is only ended when
the thread is canceled. */
@ -56,14 +61,19 @@ timer_helper_thread (void *arg)
{
siginfo_t si;
if (sigwaitinfo (&ss, &si) > 0 && si.si_code == SI_TIMER)
if (sigwaitinfo (&ss, &si) > 0)
{
struct timer *tk = (struct timer *) si.si_ptr;
/* That the signal we are waiting for. */
pthread_t th;
(void) pthread_create (&th, &tk->attr, timer_sigev_thread, tk);
if (si.si_code == SI_TIMER)
{
struct timer *tk = (struct timer *) si.si_ptr;
/* That the signal we are waiting for. */
pthread_t th;
(void) pthread_create (&th, &tk->attr, timer_sigev_thread, tk);
}
else if (si.si_code == SI_TKILL)
/* The thread is canceled. */
pthread_exit (NULL);
}
}
}

4
sysdeps/unix/sysv/linux/alpha/bits/siginfo.h
View File

@ -122,8 +122,10 @@ typedef struct siginfo
signals. */
enum
{
SI_ASYNCNL = -6, /* Sent by asynch name lookup completion. */
SI_ASYNCNL = -60, /* Sent by asynch name lookup completion. */
# define SI_ASYNCNL SI_ASYNCNL
SI_TKILL = -6, /* Sent by tkill. */
# define SI_TKILL SI_TKILL
SI_SIGIO, /* Sent by queued SIGIO. */
# define SI_SIGIO SI_SIGIO
SI_ASYNCIO, /* Sent by AIO completion. */

4
sysdeps/unix/sysv/linux/bits/siginfo.h
View File

@ -128,8 +128,10 @@ typedef struct siginfo
signals. */
enum
{
SI_ASYNCNL = -6, /* Sent by asynch name lookup completion. */
SI_ASYNCNL = -60, /* Sent by asynch name lookup completion. */
# define SI_ASYNCNL SI_ASYNCNL
SI_TKILL = -6, /* Sent by tkill. */
# define SI_TKILL SI_TKILL
SI_SIGIO, /* Sent by queued SIGIO. */
# define SI_SIGIO SI_SIGIO
SI_ASYNCIO, /* Sent by AIO completion. */

4
sysdeps/unix/sysv/linux/ia64/bits/siginfo.h
View File

@ -131,8 +131,10 @@ typedef struct siginfo
signals. */
enum
{
SI_ASYNCNL = -6, /* Sent by asynch name lookup completion. */
SI_ASYNCNL = -60, /* Sent by asynch name lookup completion. */
# define SI_ASYNCNL SI_ASYNCNL
SI_TKILL = -6, /* Sent by tkill. */
# define SI_TKILL SI_TKILL
SI_SIGIO, /* Sent by queued SIGIO. */
# define SI_SIGIO SI_SIGIO
SI_ASYNCIO, /* Sent by AIO completion. */

4
sysdeps/unix/sysv/linux/s390/bits/siginfo.h
View File

@ -130,8 +130,10 @@ typedef struct siginfo
signals. */
enum
{
SI_ASYNCNL = -6, /* Sent by asynch name lookup completion. */
SI_ASYNCNL = -60, /* Sent by asynch name lookup completion. */
# define SI_ASYNCNL SI_ASYNCNL
SI_TKILL = -6, /* Sent by tkill. */
# define SI_TKILL SI_TKILL
SI_SIGIO, /* Sent by queued SIGIO. */
# define SI_SIGIO SI_SIGIO
SI_ASYNCIO, /* Sent by AIO completion. */

15
sysdeps/unix/sysv/linux/sigprocmask.c
View File

@ -1,4 +1,4 @@
/* Copyright (C) 1997, 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
/* Copyright (C) 1997,1998,1999,2000,2001,2003 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@ -44,6 +44,19 @@ __sigprocmask (how, set, oset)
const sigset_t *set;
sigset_t *oset;
{
#ifdef SIGCANCEL
sigset_t local_newmask;
/* The only thing we have to make sure here is that SIGCANCEL is not
blocked. */
if (set != NULL && __builtin_expect (__sigismember (set, SIGCANCEL), 0))
{
local_newmask = *set;
__sigdelset (&local_newmask, SIGCANCEL);
set = &local_newmask;
}
#endif
#if __ASSUME_REALTIME_SIGNALS > 0
return INLINE_SYSCALL (rt_sigprocmask, 4, how, CHECK_SIGSET_NULL_OK (set),
CHECK_SIGSET_NULL_OK (oset), _NSIG / 8);

4
sysdeps/unix/sysv/linux/sparc/bits/siginfo.h
View File

@ -130,8 +130,10 @@ typedef struct siginfo
signals. */
enum
{
SI_ASYNCNL = -6, /* Sent by asynch name lookup completion. */
SI_ASYNCNL = -60, /* Sent by asynch name lookup completion. */
# define SI_ASYNCNL SI_ASYNCNL
SI_TKILL = -6, /* Sent by tkill. */
# define SI_TKILL SI_TKILL
SI_SIGIO, /* Sent by queued SIGIO. */
# define SI_SIGIO SI_SIGIO
SI_ASYNCIO, /* Sent by AIO completion. */

Write Preview
Loading…
Cancel
Save