rename current stable linuxthreads to linuxthreads.old to prepare for import of latest glibc version

1 files changed, 0 insertions, 248 deletions

diff --git a/libpthread/linuxthreads/signals.c b/libpthread/linuxthreads/signals.c
deleted file mode 100644
index df15b884e..000000000
--- a/libpthread/linuxthreads/signals.c
+++ /dev/null
@@ -1,248 +0,0 @@
-/* Linuxthreads - a simple clone()-based implementation of Posix        */
-/* threads for Linux.                                                   */
-/* Copyright (C) 1996 Xavier Leroy (Xavier.Leroy@inria.fr)              */
-/*                                                                      */
-/* This program is free software; you can redistribute it and/or        */
-/* modify it under the terms of the GNU Library General Public License  */
-/* as published by the Free Software Foundation; either version 2       */
-/* of the License, or (at your option) any later version.               */
-/*                                                                      */
-/* This program 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 Library General Public License for more details.                 */
-
-/* Handling of signals */
-
-#include <errno.h>
-#include <signal.h>
-#include <stdio.h>
-#include "pthread.h"
-#include "internals.h"
-#include "spinlock.h"
-#include <ucontext.h>
-#include <bits/sigcontextinfo.h>
-
-/* mods for uClibc: __libc_sigaction is not in any standard headers */
-extern int __libc_sigaction (int sig, const struct sigaction *act, struct sigaction *oact);
-
-int pthread_sigmask(int how, const sigset_t * newmask, sigset_t * oldmask)
-{
-  sigset_t mask;
-
-  if (newmask != NULL) {
-    mask = *newmask;
-    /* Don't allow __pthread_sig_restart to be unmasked.
-       Don't allow __pthread_sig_cancel to be masked. */
-    switch(how) {
-    case SIG_SETMASK:
-      sigaddset(&mask, __pthread_sig_restart);
-      sigdelset(&mask, __pthread_sig_cancel);
-      if (__pthread_sig_debug > 0)
-	sigdelset(&mask, __pthread_sig_debug);
-      break;
-    case SIG_BLOCK:
-      sigdelset(&mask, __pthread_sig_cancel);
-      if (__pthread_sig_debug > 0)
-	sigdelset(&mask, __pthread_sig_debug);
-      break;
-    case SIG_UNBLOCK:
-      sigdelset(&mask, __pthread_sig_restart);
-      break;
-    }
-    newmask = &mask;
-  }
-  if (sigprocmask(how, newmask, oldmask) == -1)
-    return errno;
-  else
-    return 0;
-}
-
-int pthread_kill(pthread_t thread, int signo)
-{
-  pthread_handle handle = thread_handle(thread);
-  int pid;
-
-  __pthread_lock(&handle->h_lock, NULL);
-  if (invalid_handle(handle, thread)) {
-    __pthread_unlock(&handle->h_lock);
-    return ESRCH;
-  }
-  pid = handle->h_descr->p_pid;
-  __pthread_unlock(&handle->h_lock);
-  if (kill(pid, signo) == -1)
-    return errno;
-  else
-    return 0;
-}
-
-/* User-provided signal handlers */
-typedef void (*arch_sighandler_t) __PMT ((int, SIGCONTEXT));
-static union
-{
-  arch_sighandler_t old;
-  void (*rt) (int, struct siginfo *, struct ucontext *);
-} sighandler[NSIG];
-
-/* The wrapper around user-provided signal handlers */
-static void pthread_sighandler(int signo, SIGCONTEXT ctx)
-{
-  pthread_descr self = thread_self();
-  char * in_sighandler;
-  /* If we're in a sigwait operation, just record the signal received
-     and return without calling the user's handler */
-  if (THREAD_GETMEM(self, p_sigwaiting)) {
-    THREAD_SETMEM(self, p_sigwaiting, 0);
-    THREAD_SETMEM(self, p_signal, signo);
-    return;
-  }
-  /* Record that we're in a signal handler and call the user's
-     handler function */
-  in_sighandler = THREAD_GETMEM(self, p_in_sighandler);
-  if (in_sighandler == NULL)
-    THREAD_SETMEM(self, p_in_sighandler, CURRENT_STACK_FRAME);
-  sighandler[signo].old(signo, SIGCONTEXT_EXTRA_ARGS ctx);
-  if (in_sighandler == NULL)
-    THREAD_SETMEM(self, p_in_sighandler, NULL);
-}
-
-/* The same, this time for real-time signals.  */
-static void pthread_sighandler_rt(int signo, struct siginfo *si,
-				  struct ucontext *uc)
-{
-  pthread_descr self = thread_self();
-  char * in_sighandler;
-  /* If we're in a sigwait operation, just record the signal received
-     and return without calling the user's handler */
-  if (THREAD_GETMEM(self, p_sigwaiting)) {
-    THREAD_SETMEM(self, p_sigwaiting, 0);
-    THREAD_SETMEM(self, p_signal, signo);
-    return;
-  }
-  /* Record that we're in a signal handler and call the user's
-     handler function */
-  in_sighandler = THREAD_GETMEM(self, p_in_sighandler);
-  if (in_sighandler == NULL)
-    THREAD_SETMEM(self, p_in_sighandler, CURRENT_STACK_FRAME);
-  sighandler[signo].rt(signo, si, uc);
-  if (in_sighandler == NULL)
-    THREAD_SETMEM(self, p_in_sighandler, NULL);
-}
-
-/* The wrapper around sigaction.  Install our own signal handler
-   around the signal. */
-int __sigaction(int sig, const struct sigaction * act,
-              struct sigaction * oact)
-{
-  struct sigaction newact;
-  struct sigaction *newactp;
-
-#ifdef DEBUG_PT
-printf(__FUNCTION__": pthreads wrapper!\n");
-#endif
-  if (sig == __pthread_sig_restart ||
-      sig == __pthread_sig_cancel ||
-      (sig == __pthread_sig_debug && __pthread_sig_debug > 0))
-    return EINVAL;
-  if (act)
-    {
-      newact = *act;
-      if (act->sa_handler != SIG_IGN && act->sa_handler != SIG_DFL
-	  && sig > 0 && sig < NSIG)
-	{
-	  if (act->sa_flags & SA_SIGINFO)
-	    newact.sa_handler = (__sighandler_t) pthread_sighandler_rt;
-	  else
-	    newact.sa_handler = (__sighandler_t) pthread_sighandler;
-	}
-      newactp = &newact;
-    }
-  else
-    newactp = NULL;
-  if (__libc_sigaction(sig, newactp, oact) == -1)
-    return -1;
-#ifdef DEBUG_PT
-printf(__FUNCTION__": signahdler installed, __sigaction successful\n");
-#endif
-  if (sig > 0 && sig < NSIG)
-    {
-      if (oact != NULL)
-	oact->sa_handler = (__sighandler_t) sighandler[sig].old;
-      if (act)
-	/* For the assignment is does not matter whether it's a normal
-	   or real-time signal.  */
-	sighandler[sig].old = (arch_sighandler_t) act->sa_handler;
-    }
-  return 0;
-}
-strong_alias(__sigaction, sigaction)
-
-/* A signal handler that does nothing */
-static void pthread_null_sighandler(int sig) { }
-
-/* sigwait -- synchronously wait for a signal */
-int sigwait(const sigset_t * set, int * sig)
-{
-  volatile pthread_descr self = thread_self();
-  sigset_t mask;
-  int s;
-  sigjmp_buf jmpbuf;
-  struct sigaction sa;
-
-  /* Get ready to block all signals except those in set
-     and the cancellation signal.
-     Also check that handlers are installed on all signals in set,
-     and if not, install our dummy handler.  This is conformant to
-     POSIX: "The effect of sigwait() on the signal actions for the
-     signals in set is unspecified." */
-  sigfillset(&mask);
-  sigdelset(&mask, __pthread_sig_cancel);
-  for (s = 1; s <= NSIG; s++) {
-    if (sigismember(set, s) &&
-        s != __pthread_sig_restart &&
-        s != __pthread_sig_cancel &&
-        s != __pthread_sig_debug) {
-      sigdelset(&mask, s);
-      if (sighandler[s].old == NULL ||
-	  sighandler[s].old == (arch_sighandler_t) SIG_DFL ||
-	  sighandler[s].old == (arch_sighandler_t) SIG_IGN) {
-        sa.sa_handler = pthread_null_sighandler;
-        sigemptyset(&sa.sa_mask);
-        sa.sa_flags = 0;
-        sigaction(s, &sa, NULL);
-      }
-    }
-  }
-  /* Test for cancellation */
-  if (sigsetjmp(jmpbuf, 1) == 0) {
-    THREAD_SETMEM(self, p_cancel_jmp, &jmpbuf);
-    if (! (THREAD_GETMEM(self, p_canceled)
-	   && THREAD_GETMEM(self, p_cancelstate) == PTHREAD_CANCEL_ENABLE)) {
-      /* Reset the signal count */
-      THREAD_SETMEM(self, p_signal, 0);
-      /* Say we're in sigwait */
-      THREAD_SETMEM(self, p_sigwaiting, 1);
-      /* Unblock the signals and wait for them */
-      sigsuspend(&mask);
-    }
-  }
-  THREAD_SETMEM(self, p_cancel_jmp, NULL);
-  /* The signals are now reblocked.  Check for cancellation */
-  pthread_testcancel();
-  /* We should have self->p_signal != 0 and equal to the signal received */
-  *sig = THREAD_GETMEM(self, p_signal);
-  return 0;
-}
-
-/* Redefine raise() to send signal to calling thread only,
-   as per POSIX 1003.1c */
-int raise (int sig)
-{
-  int retcode = pthread_kill(pthread_self(), sig);
-  if (retcode == 0)
-    return 0;
-  else {
-    errno = retcode;
-    return -1;
-  }
-}