linuxthreads, linuxthreads_db: Directories removed (preserved in ports repository).

1 files changed, 0 insertions, 1112 deletions

diff --git a/linuxthreads/manager.c b/linuxthreads/manager.c
deleted file mode 100644
index f21a6def6f..0000000000
--- a/linuxthreads/manager.c
+++ /dev/null
@@ -1,1112 +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.                 */
-
-/* The "thread manager" thread: manages creation and termination of threads */
-
-#include <assert.h>
-#include <errno.h>
-#include <sched.h>
-#include <stddef.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <sys/poll.h>		/* for poll */
-#include <sys/mman.h>           /* for mmap */
-#include <sys/param.h>
-#include <sys/time.h>
-#include <sys/wait.h>           /* for waitpid macros */
-#include <locale.h>		/* for __uselocale */
-#include <resolv.h>		/* for __resp */
-
-#include <ldsodefs.h>
-#include "pthread.h"
-#include "internals.h"
-#include "spinlock.h"
-#include "restart.h"
-#include "semaphore.h"
-#include <not-cancel.h>
-
-/* For debugging purposes put the maximum number of threads in a variable.  */
-const int __linuxthreads_pthread_threads_max = PTHREAD_THREADS_MAX;
-
-#ifndef THREAD_SELF
-/* Indicate whether at least one thread has a user-defined stack (if 1),
-   or if all threads have stacks supplied by LinuxThreads (if 0). */
-int __pthread_nonstandard_stacks;
-#endif
-
-/* Number of active entries in __pthread_handles (used by gdb) */
-volatile int __pthread_handles_num = 2;
-
-/* Whether to use debugger additional actions for thread creation
-   (set to 1 by gdb) */
-volatile int __pthread_threads_debug;
-
-/* Globally enabled events.  */
-volatile td_thr_events_t __pthread_threads_events;
-
-/* Pointer to thread descriptor with last event.  */
-volatile pthread_descr __pthread_last_event;
-
-static pthread_descr manager_thread;
-
-/* Mapping from stack segment to thread descriptor. */
-/* Stack segment numbers are also indices into the __pthread_handles array. */
-/* Stack segment number 0 is reserved for the initial thread. */
-
-#if FLOATING_STACKS
-# define thread_segment(seq) NULL
-#else
-static inline pthread_descr thread_segment(int seg)
-{
-# ifdef _STACK_GROWS_UP
-  return (pthread_descr)(THREAD_STACK_START_ADDRESS + (seg - 1) * STACK_SIZE)
-         + 1;
-# else
-  return (pthread_descr)(THREAD_STACK_START_ADDRESS - (seg - 1) * STACK_SIZE)
-         - 1;
-# endif
-}
-#endif
-
-/* Flag set in signal handler to record child termination */
-
-static volatile int terminated_children;
-
-/* Flag set when the initial thread is blocked on pthread_exit waiting
-   for all other threads to terminate */
-
-static int main_thread_exiting;
-
-/* Counter used to generate unique thread identifier.
-   Thread identifier is pthread_threads_counter + segment. */
-
-static pthread_t pthread_threads_counter;
-
-/* Forward declarations */
-
-static int pthread_handle_create(pthread_t *thread, const pthread_attr_t *attr,
-                                 void * (*start_routine)(void *), void *arg,
-                                 sigset_t *mask, int father_pid,
-				 int report_events,
-				 td_thr_events_t *event_maskp);
-static void pthread_handle_free(pthread_t th_id);
-static void pthread_handle_exit(pthread_descr issuing_thread, int exitcode)
-     __attribute__ ((noreturn));
-static void pthread_reap_children(void);
-static void pthread_kill_all_threads(int sig, int main_thread_also);
-static void pthread_for_each_thread(void *arg,
-    void (*fn)(void *, pthread_descr));
-
-/* The server thread managing requests for thread creation and termination */
-
-int
-__attribute__ ((noreturn))
-__pthread_manager(void *arg)
-{
-  pthread_descr self = manager_thread = arg;
-  int reqfd = __pthread_manager_reader;
-  struct pollfd ufd;
-  sigset_t manager_mask;
-  int n;
-  struct pthread_request request;
-
-  /* If we have special thread_self processing, initialize it.  */
-#ifdef INIT_THREAD_SELF
-  INIT_THREAD_SELF(self, 1);
-#endif
-#if !(USE_TLS && HAVE___THREAD)
-  /* Set the error variable.  */
-  self->p_errnop = &self->p_errno;
-  self->p_h_errnop = &self->p_h_errno;
-#endif
-  /* Block all signals except __pthread_sig_cancel and SIGTRAP */
-  sigfillset(&manager_mask);
-  sigdelset(&manager_mask, __pthread_sig_cancel); /* for thread termination */
-  sigdelset(&manager_mask, SIGTRAP);            /* for debugging purposes */
-  if (__pthread_threads_debug && __pthread_sig_debug > 0)
-    sigdelset(&manager_mask, __pthread_sig_debug);
-  sigprocmask(SIG_SETMASK, &manager_mask, NULL);
-  /* Raise our priority to match that of main thread */
-  __pthread_manager_adjust_prio(__pthread_main_thread->p_priority);
-  /* Synchronize debugging of the thread manager */
-  n = TEMP_FAILURE_RETRY(read_not_cancel(reqfd, (char *)&request,
-					 sizeof(request)));
-  ASSERT(n == sizeof(request) && request.req_kind == REQ_DEBUG);
-  ufd.fd = reqfd;
-  ufd.events = POLLIN;
-  /* Enter server loop */
-  while(1) {
-    n = __poll(&ufd, 1, 2000);
-
-    /* Check for termination of the main thread */
-    if (getppid() == 1) {
-      pthread_kill_all_threads(SIGKILL, 0);
-      _exit(0);
-    }
-    /* Check for dead children */
-    if (terminated_children) {
-      terminated_children = 0;
-      pthread_reap_children();
-    }
-    /* Read and execute request */
-    if (n == 1 && (ufd.revents & POLLIN)) {
-      n = TEMP_FAILURE_RETRY(read_not_cancel(reqfd, (char *)&request,
-					     sizeof(request)));
-#ifdef DEBUG
-      if (n < 0) {
-	char d[64];
-	write(STDERR_FILENO, d, snprintf(d, sizeof(d), "*** read err %m\n"));
-      } else if (n != sizeof(request)) {
-	write(STDERR_FILENO, "*** short read in manager\n", 26);
-      }
-#endif
-
-      switch(request.req_kind) {
-      case REQ_CREATE:
-        request.req_thread->p_retcode =
-          pthread_handle_create((pthread_t *) &request.req_thread->p_retval,
-                                request.req_args.create.attr,
-                                request.req_args.create.fn,
-                                request.req_args.create.arg,
-                                &request.req_args.create.mask,
-                                request.req_thread->p_pid,
-				request.req_thread->p_report_events,
-				&request.req_thread->p_eventbuf.eventmask);
-        restart(request.req_thread);
-        break;
-      case REQ_FREE:
-	pthread_handle_free(request.req_args.free.thread_id);
-        break;
-      case REQ_PROCESS_EXIT:
-        pthread_handle_exit(request.req_thread,
-                            request.req_args.exit.code);
-	/* NOTREACHED */
-        break;
-      case REQ_MAIN_THREAD_EXIT:
-        main_thread_exiting = 1;
-	/* Reap children in case all other threads died and the signal handler
-	   went off before we set main_thread_exiting to 1, and therefore did
-	   not do REQ_KICK. */
-	pthread_reap_children();
-
-        if (__pthread_main_thread->p_nextlive == __pthread_main_thread) {
-          restart(__pthread_main_thread);
-	  /* The main thread will now call exit() which will trigger an
-	     __on_exit handler, which in turn will send REQ_PROCESS_EXIT
-	     to the thread manager. In case you are wondering how the
-	     manager terminates from its loop here. */
-	}
-        break;
-      case REQ_POST:
-        __new_sem_post(request.req_args.post);
-        break;
-      case REQ_DEBUG:
-	/* Make gdb aware of new thread and gdb will restart the
-	   new thread when it is ready to handle the new thread. */
-	if (__pthread_threads_debug && __pthread_sig_debug > 0)
-	  raise(__pthread_sig_debug);
-        break;
-      case REQ_KICK:
-	/* This is just a prod to get the manager to reap some
-	   threads right away, avoiding a potential delay at shutdown. */
-	break;
-      case REQ_FOR_EACH_THREAD:
-	pthread_for_each_thread(request.req_args.for_each.arg,
-	                        request.req_args.for_each.fn);
-	restart(request.req_thread);
-	break;
-      }
-    }
-  }
-}
-
-int __pthread_manager_event(void *arg)
-{
-  pthread_descr self = arg;
-  /* If we have special thread_self processing, initialize it.  */
-#ifdef INIT_THREAD_SELF
-  INIT_THREAD_SELF(self, 1);
-#endif
-
-  /* Get the lock the manager will free once all is correctly set up.  */
-  __pthread_lock (THREAD_GETMEM(self, p_lock), NULL);
-  /* Free it immediately.  */
-  __pthread_unlock (THREAD_GETMEM(self, p_lock));
-
-  return __pthread_manager(arg);
-}
-
-/* Process creation */
-
-static int
-__attribute__ ((noreturn))
-pthread_start_thread(void *arg)
-{
-  pthread_descr self = (pthread_descr) arg;
-  struct pthread_request request;
-  void * outcome;
-#if HP_TIMING_AVAIL
-  hp_timing_t tmpclock;
-#endif
-  /* Initialize special thread_self processing, if any.  */
-#ifdef INIT_THREAD_SELF
-  INIT_THREAD_SELF(self, self->p_nr);
-#endif
-#if HP_TIMING_AVAIL
-  HP_TIMING_NOW (tmpclock);
-  THREAD_SETMEM (self, p_cpuclock_offset, tmpclock);
-#endif
-  /* Make sure our pid field is initialized, just in case we get there
-     before our father has initialized it. */
-  THREAD_SETMEM(self, p_pid, __getpid());
-  /* Initial signal mask is that of the creating thread. (Otherwise,
-     we'd just inherit the mask of the thread manager.) */
-  sigprocmask(SIG_SETMASK, &self->p_start_args.mask, NULL);
-  /* Set the scheduling policy and priority for the new thread, if needed */
-  if (THREAD_GETMEM(self, p_start_args.schedpolicy) >= 0)
-    /* Explicit scheduling attributes were provided: apply them */
-    __sched_setscheduler(THREAD_GETMEM(self, p_pid),
-			 THREAD_GETMEM(self, p_start_args.schedpolicy),
-                         &self->p_start_args.schedparam);
-  else if (manager_thread->p_priority > 0)
-    /* Default scheduling required, but thread manager runs in realtime
-       scheduling: switch new thread to SCHED_OTHER policy */
-    {
-      struct sched_param default_params;
-      default_params.sched_priority = 0;
-      __sched_setscheduler(THREAD_GETMEM(self, p_pid),
-                           SCHED_OTHER, &default_params);
-    }
-#if !(USE_TLS && HAVE___THREAD)
-  /* Initialize thread-locale current locale to point to the global one.
-     With __thread support, the variable's initializer takes care of this.  */
-  __uselocale (LC_GLOBAL_LOCALE);
-#else
-  /* Initialize __resp.  */
-  __resp = &self->p_res;
-#endif
-  /* Make gdb aware of new thread */
-  if (__pthread_threads_debug && __pthread_sig_debug > 0) {
-    request.req_thread = self;
-    request.req_kind = REQ_DEBUG;
-    TEMP_FAILURE_RETRY(write_not_cancel(__pthread_manager_request,
-					(char *) &request, sizeof(request)));
-    suspend(self);
-  }
-  /* Run the thread code */
-  outcome = self->p_start_args.start_routine(THREAD_GETMEM(self,
-							   p_start_args.arg));
-  /* Exit with the given return value */
-  __pthread_do_exit(outcome, CURRENT_STACK_FRAME);
-}
-
-static int
-__attribute__ ((noreturn))
-pthread_start_thread_event(void *arg)
-{
-  pthread_descr self = (pthread_descr) arg;
-
-#ifdef INIT_THREAD_SELF
-  INIT_THREAD_SELF(self, self->p_nr);
-#endif
-  /* Make sure our pid field is initialized, just in case we get there
-     before our father has initialized it. */
-  THREAD_SETMEM(self, p_pid, __getpid());
-  /* Get the lock the manager will free once all is correctly set up.  */
-  __pthread_lock (THREAD_GETMEM(self, p_lock), NULL);
-  /* Free it immediately.  */
-  __pthread_unlock (THREAD_GETMEM(self, p_lock));
-
-  /* Continue with the real function.  */
-  pthread_start_thread (arg);
-}
-
-#if defined USE_TLS && !FLOATING_STACKS
-# error "TLS can only work with floating stacks"
-#endif
-
-static int pthread_allocate_stack(const pthread_attr_t *attr,
-                                  pthread_descr default_new_thread,
-                                  int pagesize,
-                                  char ** out_new_thread,
-                                  char ** out_new_thread_bottom,
-                                  char ** out_guardaddr,
-                                  size_t * out_guardsize,
-                                  size_t * out_stacksize)
-{
-  pthread_descr new_thread;
-  char * new_thread_bottom;
-  char * guardaddr;
-  size_t stacksize, guardsize;
-
-#ifdef USE_TLS
-  /* TLS cannot work with fixed thread descriptor addresses.  */
-  assert (default_new_thread == NULL);
-#endif
-
-  if (attr != NULL && attr->__stackaddr_set)
-    {
-#ifdef _STACK_GROWS_UP
-      /* The user provided a stack. */
-# ifdef USE_TLS
-      /* This value is not needed.  */
-      new_thread = (pthread_descr) attr->__stackaddr;
-      new_thread_bottom = (char *) new_thread;
-# else
-      new_thread = (pthread_descr) attr->__stackaddr;
-      new_thread_bottom = (char *) (new_thread + 1);
-# endif
-      guardaddr = attr->__stackaddr + attr->__stacksize;
-      guardsize = 0;
-#else
-      /* The user provided a stack.  For now we interpret the supplied
-	 address as 1 + the highest addr. in the stack segment.  If a
-	 separate register stack is needed, we place it at the low end
-	 of the segment, relying on the associated stacksize to
-	 determine the low end of the segment.  This differs from many
-	 (but not all) other pthreads implementations.  The intent is
-	 that on machines with a single stack growing toward higher
-	 addresses, stackaddr would be the lowest address in the stack
-	 segment, so that it is consistently close to the initial sp
-	 value. */
-# ifdef USE_TLS
-      new_thread = (pthread_descr) attr->__stackaddr;
-# else
-      new_thread =
-        (pthread_descr) ((long)(attr->__stackaddr) & -sizeof(void *)) - 1;
-# endif
-      new_thread_bottom = (char *) attr->__stackaddr - attr->__stacksize;
-      guardaddr = new_thread_bottom;
-      guardsize = 0;
-#endif
-#ifndef THREAD_SELF
-      __pthread_nonstandard_stacks = 1;
-#endif
-#ifndef USE_TLS
-      /* Clear the thread data structure.  */
-      memset (new_thread, '\0', sizeof (*new_thread));
-#endif
-      stacksize = attr->__stacksize;
-    }
-  else
-    {
-#ifdef NEED_SEPARATE_REGISTER_STACK
-      const size_t granularity = 2 * pagesize;
-      /* Try to make stacksize/2 a multiple of pagesize */
-#else
-      const size_t granularity = pagesize;
-#endif
-      void *map_addr;
-
-      /* Allocate space for stack and thread descriptor at default address */
-#if FLOATING_STACKS
-      if (attr != NULL)
-	{
-	  guardsize = page_roundup (attr->__guardsize, granularity);
-	  stacksize = __pthread_max_stacksize - guardsize;
-	  stacksize = MIN (stacksize,
-			   page_roundup (attr->__stacksize, granularity));
-	}
-      else
-	{
-	  guardsize = granularity;
-	  stacksize = __pthread_max_stacksize - guardsize;
-	}
-
-      map_addr = mmap(NULL, stacksize + guardsize,
-		      PROT_READ | PROT_WRITE | PROT_EXEC,
-		      MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
-      if (map_addr == MAP_FAILED)
-        /* No more memory available.  */
-        return -1;
-
-# ifdef NEED_SEPARATE_REGISTER_STACK
-      guardaddr = map_addr + stacksize / 2;
-      if (guardsize > 0)
-	mprotect (guardaddr, guardsize, PROT_NONE);
-
-      new_thread_bottom = (char *) map_addr;
-#  ifdef USE_TLS
-      new_thread = ((pthread_descr) (new_thread_bottom + stacksize
-				     + guardsize));
-#  else
-      new_thread = ((pthread_descr) (new_thread_bottom + stacksize
-				     + guardsize)) - 1;
-#  endif
-# elif _STACK_GROWS_DOWN
-      guardaddr = map_addr;
-      if (guardsize > 0)
-	mprotect (guardaddr, guardsize, PROT_NONE);
-
-      new_thread_bottom = (char *) map_addr + guardsize;
-#  ifdef USE_TLS
-      new_thread = ((pthread_descr) (new_thread_bottom + stacksize));
-#  else
-      new_thread = ((pthread_descr) (new_thread_bottom + stacksize)) - 1;
-#  endif
-# elif _STACK_GROWS_UP
-      guardaddr = map_addr + stacksize;
-      if (guardsize > 0)
-	mprotect (guardaddr, guardsize, PROT_NONE);
-
-      new_thread = (pthread_descr) map_addr;
-#  ifdef USE_TLS
-      new_thread_bottom = (char *) new_thread;
-#  else
-      new_thread_bottom = (char *) (new_thread + 1);
-#  endif
-# else
-#  error You must define a stack direction
-# endif /* Stack direction */
-#else /* !FLOATING_STACKS */
-      void *res_addr;
-
-      if (attr != NULL)
-	{
-	  guardsize = page_roundup (attr->__guardsize, granularity);
-	  stacksize = STACK_SIZE - guardsize;
-	  stacksize = MIN (stacksize,
-			   page_roundup (attr->__stacksize, granularity));
-	}
-      else
-	{
-	  guardsize = granularity;
-	  stacksize = STACK_SIZE - granularity;
-	}
-
-# ifdef NEED_SEPARATE_REGISTER_STACK
-      new_thread = default_new_thread;
-      new_thread_bottom = (char *) (new_thread + 1) - stacksize - guardsize;
-      /* Includes guard area, unlike the normal case.  Use the bottom
-       end of the segment as backing store for the register stack.
-       Needed on IA64.  In this case, we also map the entire stack at
-       once.  According to David Mosberger, that's cheaper.  It also
-       avoids the risk of intermittent failures due to other mappings
-       in the same region.  The cost is that we might be able to map
-       slightly fewer stacks.  */
-
-      /* First the main stack: */
-      map_addr = (caddr_t)((char *)(new_thread + 1) - stacksize / 2);
-      res_addr = mmap(map_addr, stacksize / 2,
-		      PROT_READ | PROT_WRITE | PROT_EXEC,
-		      MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
-      if (res_addr != map_addr)
-	{
-	  /* Bad luck, this segment is already mapped. */
-	  if (res_addr != MAP_FAILED)
-	    munmap(res_addr, stacksize / 2);
-	  return -1;
-	}
-      /* Then the register stack:	*/
-      map_addr = (caddr_t)new_thread_bottom;
-      res_addr = mmap(map_addr, stacksize/2,
-		      PROT_READ | PROT_WRITE | PROT_EXEC,
-		      MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
-      if (res_addr != map_addr)
-	{
-	  if (res_addr != MAP_FAILED)
-	    munmap(res_addr, stacksize / 2);
-	  munmap((caddr_t)((char *)(new_thread + 1) - stacksize/2),
-		 stacksize/2);
-	  return -1;
-	}
-
-      guardaddr = new_thread_bottom + stacksize/2;
-      /* We leave the guard area in the middle unmapped.	*/
-# else  /* !NEED_SEPARATE_REGISTER_STACK */
-#  ifdef _STACK_GROWS_DOWN
-      new_thread = default_new_thread;
-      new_thread_bottom = (char *) (new_thread + 1) - stacksize;
-      map_addr = new_thread_bottom - guardsize;
-      res_addr = mmap(map_addr, stacksize + guardsize,
-		      PROT_READ | PROT_WRITE | PROT_EXEC,
-		      MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
-      if (res_addr != map_addr)
-	{
-	  /* Bad luck, this segment is already mapped. */
-	  if (res_addr != MAP_FAILED)
-	    munmap (res_addr, stacksize + guardsize);
-	  return -1;
-	}
-
-      /* We manage to get a stack.  Protect the guard area pages if
-	 necessary.  */
-      guardaddr = map_addr;
-      if (guardsize > 0)
-	mprotect (guardaddr, guardsize, PROT_NONE);
-#  else
-      /* The thread description goes at the bottom of this area, and
-       * the stack starts directly above it.
-       */
-      new_thread = (pthread_descr)((unsigned long)default_new_thread &~ (STACK_SIZE - 1));
-      map_addr = mmap(new_thread, stacksize + guardsize,
-		      PROT_READ | PROT_WRITE | PROT_EXEC,
-		      MAP_FIXED | MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
-      if (map_addr == MAP_FAILED)
-	  return -1;
-
-      new_thread_bottom = map_addr + sizeof(*new_thread);
-      guardaddr = map_addr + stacksize;
-      if (guardsize > 0)
-	  mprotect (guardaddr, guardsize, PROT_NONE);
-
-#  endif /* stack direction */
-# endif  /* !NEED_SEPARATE_REGISTER_STACK */
-#endif   /* !FLOATING_STACKS */
-    }
-  *out_new_thread = (char *) new_thread;
-  *out_new_thread_bottom = new_thread_bottom;
-  *out_guardaddr = guardaddr;
-  *out_guardsize = guardsize;
-#ifdef NEED_SEPARATE_REGISTER_STACK
-  *out_stacksize = stacksize / 2;
-#else
-  *out_stacksize = stacksize;
-#endif
-  return 0;
-}
-
-static int pthread_handle_create(pthread_t *thread, const pthread_attr_t *attr,
-				 void * (*start_routine)(void *), void *arg,
-				 sigset_t * mask, int father_pid,
-				 int report_events,
-				 td_thr_events_t *event_maskp)
-{
-  size_t sseg;
-  int pid;
-  pthread_descr new_thread;
-  char *stack_addr;
-  char * new_thread_bottom;
-  pthread_t new_thread_id;
-  char *guardaddr = NULL;
-  size_t guardsize = 0, stksize = 0;
-  int pagesize = __getpagesize();
-  int saved_errno = 0;
-
-#ifdef USE_TLS
-  new_thread = _dl_allocate_tls (NULL);
-  if (new_thread == NULL)
-    return EAGAIN;
-# if TLS_DTV_AT_TP
-  /* pthread_descr is below TP.  */
-  new_thread = (pthread_descr) ((char *) new_thread - TLS_PRE_TCB_SIZE);
-# endif
-#else
-  /* Prevent warnings.  */
-  new_thread = NULL;
-#endif
-
-  /* First check whether we have to change the policy and if yes, whether
-     we can  do this.  Normally this should be done by examining the
-     return value of the __sched_setscheduler call in pthread_start_thread
-     but this is hard to implement.  FIXME  */
-  if (attr != NULL && attr->__schedpolicy != SCHED_OTHER && geteuid () != 0)
-    return EPERM;
-  /* Find a free segment for the thread, and allocate a stack if needed */
-  for (sseg = 2; ; sseg++)
-    {
-      if (sseg >= PTHREAD_THREADS_MAX)
-	{
-#ifdef USE_TLS
-# if TLS_DTV_AT_TP
-	  new_thread = (pthread_descr) ((char *) new_thread + TLS_PRE_TCB_SIZE);
-# endif
-	  _dl_deallocate_tls (new_thread, true);
-#endif
-	  return EAGAIN;
-	}
-      if (__pthread_handles[sseg].h_descr != NULL)
-	continue;
-      if (pthread_allocate_stack(attr, thread_segment(sseg),
-				 pagesize, &stack_addr, &new_thread_bottom,
-                                 &guardaddr, &guardsize, &stksize) == 0)
-	{
-#ifdef USE_TLS
-	  new_thread->p_stackaddr = stack_addr;
-#else
-	  new_thread = (pthread_descr) stack_addr;
-#endif
-	  break;
-	}
-    }
-  __pthread_handles_num++;
-  /* Allocate new thread identifier */
-  pthread_threads_counter += PTHREAD_THREADS_MAX;
-  new_thread_id = sseg + pthread_threads_counter;
-  /* Initialize the thread descriptor.  Elements which have to be
-     initialized to zero already have this value.  */
-#if !defined USE_TLS || !TLS_DTV_AT_TP
-  new_thread->p_header.data.tcb = new_thread;
-  new_thread->p_header.data.self = new_thread;
-#endif
-#if TLS_MULTIPLE_THREADS_IN_TCB || !defined USE_TLS || !TLS_DTV_AT_TP
-  new_thread->p_multiple_threads = 1;
-#endif
-  new_thread->p_tid = new_thread_id;
-  new_thread->p_lock = &(__pthread_handles[sseg].h_lock);
-  new_thread->p_cancelstate = PTHREAD_CANCEL_ENABLE;
-  new_thread->p_canceltype = PTHREAD_CANCEL_DEFERRED;
-#if !(USE_TLS && HAVE___THREAD)
-  new_thread->p_errnop = &new_thread->p_errno;
-  new_thread->p_h_errnop = &new_thread->p_h_errno;
-  new_thread->p_resp = &new_thread->p_res;
-#endif
-  new_thread->p_guardaddr = guardaddr;
-  new_thread->p_guardsize = guardsize;
-  new_thread->p_nr = sseg;
-  new_thread->p_inheritsched = attr ? attr->__inheritsched : 0;
-  new_thread->p_alloca_cutoff = stksize / 4 > __MAX_ALLOCA_CUTOFF
-				 ? __MAX_ALLOCA_CUTOFF : stksize / 4;
-  /* Initialize the thread handle */
-  __pthread_init_lock(&__pthread_handles[sseg].h_lock);
-  __pthread_handles[sseg].h_descr = new_thread;
-  __pthread_handles[sseg].h_bottom = new_thread_bottom;
-  /* Determine scheduling parameters for the thread */
-  new_thread->p_start_args.schedpolicy = -1;
-  if (attr != NULL) {
-    new_thread->p_detached = attr->__detachstate;
-    new_thread->p_userstack = attr->__stackaddr_set;
-
-    switch(attr->__inheritsched) {
-    case PTHREAD_EXPLICIT_SCHED:
-      new_thread->p_start_args.schedpolicy = attr->__schedpolicy;
-      memcpy (&new_thread->p_start_args.schedparam, &attr->__schedparam,
-	      sizeof (struct sched_param));
-      break;
-    case PTHREAD_INHERIT_SCHED:
-      new_thread->p_start_args.schedpolicy = __sched_getscheduler(father_pid);
-      __sched_getparam(father_pid, &new_thread->p_start_args.schedparam);
-      break;
-    }
-    new_thread->p_priority =
-      new_thread->p_start_args.schedparam.sched_priority;
-  }
-  /* Finish setting up arguments to pthread_start_thread */
-  new_thread->p_start_args.start_routine = start_routine;
-  new_thread->p_start_args.arg = arg;
-  new_thread->p_start_args.mask = *mask;
-  /* Make the new thread ID available already now.  If any of the later
-     functions fail we return an error value and the caller must not use
-     the stored thread ID.  */
-  *thread = new_thread_id;
-  /* Raise priority of thread manager if needed */
-  __pthread_manager_adjust_prio(new_thread->p_priority);
-  /* Do the cloning.  We have to use two different functions depending
-     on whether we are debugging or not.  */
-  pid = 0;	/* Note that the thread never can have PID zero.  */
-  if (report_events)
-    {
-      /* See whether the TD_CREATE event bit is set in any of the
-         masks.  */
-      int idx = __td_eventword (TD_CREATE);
-      uint32_t mask = __td_eventmask (TD_CREATE);
-
-      if ((mask & (__pthread_threads_events.event_bits[idx]
-		   | event_maskp->event_bits[idx])) != 0)
-	{
-	  /* Lock the mutex the child will use now so that it will stop.  */
-	  __pthread_lock(new_thread->p_lock, NULL);
-
-	  /* We have to report this event.  */
-#ifdef NEED_SEPARATE_REGISTER_STACK
-	  /* Perhaps this version should be used on all platforms. But
-	   this requires that __clone2 be uniformly supported
-	   everywhere.
-
-	   And there is some argument for changing the __clone2
-	   interface to pass sp and bsp instead, making it more IA64
-	   specific, but allowing stacks to grow outward from each
-	   other, to get less paging and fewer mmaps.  */
-	  pid = __clone2(pthread_start_thread_event,
-  		 (void **)new_thread_bottom,
-			 (char *)stack_addr - new_thread_bottom,
-			 CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGHAND |
-			 __pthread_sig_cancel, new_thread);
-#elif _STACK_GROWS_UP
-	  pid = __clone(pthread_start_thread_event, (void *) new_thread_bottom,
-			CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGHAND |
-			__pthread_sig_cancel, new_thread);
-#else
-	  pid = __clone(pthread_start_thread_event, stack_addr,
-			CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGHAND |
-			__pthread_sig_cancel, new_thread);
-#endif
-	  saved_errno = errno;
-	  if (pid != -1)
-	    {
-	      /* Now fill in the information about the new thread in
-		 the newly created thread's data structure.  We cannot let
-		 the new thread do this since we don't know whether it was
-		 already scheduled when we send the event.  */
-	      new_thread->p_eventbuf.eventdata = new_thread;
-	      new_thread->p_eventbuf.eventnum = TD_CREATE;
-	      __pthread_last_event = new_thread;
-
-	      /* We have to set the PID here since the callback function
-		 in the debug library will need it and we cannot guarantee
-		 the child got scheduled before the debugger.  */
-	      new_thread->p_pid = pid;
-
-	      /* Now call the function which signals the event.  */
-	      __linuxthreads_create_event ();
-
-	      /* Now restart the thread.  */
-	      __pthread_unlock(new_thread->p_lock);
-	    }
-	}
-    }
-  if (pid == 0)
-    {
-#ifdef NEED_SEPARATE_REGISTER_STACK
-      pid = __clone2(pthread_start_thread,
-		     (void **)new_thread_bottom,
-                     (char *)stack_addr - new_thread_bottom,
-		     CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGHAND |
-		     __pthread_sig_cancel, new_thread);
-#elif _STACK_GROWS_UP
-      pid = __clone(pthread_start_thread, (void *) new_thread_bottom,
-		    CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGHAND |
-		    __pthread_sig_cancel, new_thread);
-#else
-      pid = __clone(pthread_start_thread, stack_addr,
-		    CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGHAND |
-		    __pthread_sig_cancel, new_thread);
-#endif /* !NEED_SEPARATE_REGISTER_STACK */
-      saved_errno = errno;
-    }
-  /* Check if cloning succeeded */
-  if (pid == -1) {
-    /* Free the stack if we allocated it */
-    if (attr == NULL || !attr->__stackaddr_set)
-      {
-#ifdef NEED_SEPARATE_REGISTER_STACK
-	size_t stacksize = ((char *)(new_thread->p_guardaddr)
-			    - new_thread_bottom);
-	munmap((caddr_t)new_thread_bottom,
-	       2 * stacksize + new_thread->p_guardsize);
-#elif _STACK_GROWS_UP
-# ifdef USE_TLS
-	size_t stacksize = guardaddr - stack_addr;
-	munmap(stack_addr, stacksize + guardsize);
-# else
-	size_t stacksize = guardaddr - (char *)new_thread;
-	munmap(new_thread, stacksize + guardsize);
-# endif
-#else
-# ifdef USE_TLS
-	size_t stacksize = stack_addr - new_thread_bottom;
-# else
-	size_t stacksize = (char *)(new_thread+1) - new_thread_bottom;
-# endif
-	munmap(new_thread_bottom - guardsize, guardsize + stacksize);
-#endif
-      }
-#ifdef USE_TLS
-# if TLS_DTV_AT_TP
-    new_thread = (pthread_descr) ((char *) new_thread + TLS_PRE_TCB_SIZE);
-# endif
-    _dl_deallocate_tls (new_thread, true);
-#endif
-    __pthread_handles[sseg].h_descr = NULL;
-    __pthread_handles[sseg].h_bottom = NULL;
-    __pthread_handles_num--;
-    return saved_errno;
-  }
-  /* Insert new thread in doubly linked list of active threads */
-  new_thread->p_prevlive = __pthread_main_thread;
-  new_thread->p_nextlive = __pthread_main_thread->p_nextlive;
-  __pthread_main_thread->p_nextlive->p_prevlive = new_thread;
-  __pthread_main_thread->p_nextlive = new_thread;
-  /* Set pid field of the new thread, in case we get there before the
-     child starts. */
-  new_thread->p_pid = pid;
-  return 0;
-}
-
-
-/* Try to free the resources of a thread when requested by pthread_join
-   or pthread_detach on a terminated thread. */
-
-static void pthread_free(pthread_descr th)
-{
-  pthread_handle handle;
-  pthread_readlock_info *iter, *next;
-
-  ASSERT(th->p_exited);
-  /* Make the handle invalid */
-  handle =  thread_handle(th->p_tid);
-  __pthread_lock(&handle->h_lock, NULL);
-  handle->h_descr = NULL;
-  handle->h_bottom = (char *)(-1L);
-  __pthread_unlock(&handle->h_lock);
-#ifdef FREE_THREAD
-  FREE_THREAD(th, th->p_nr);
-#endif
-  /* One fewer threads in __pthread_handles */
-  __pthread_handles_num--;
-
-  /* Destroy read lock list, and list of free read lock structures.
-     If the former is not empty, it means the thread exited while
-     holding read locks! */
-
-  for (iter = th->p_readlock_list; iter != NULL; iter = next)
-    {
-      next = iter->pr_next;
-      free(iter);
-    }
-
-  for (iter = th->p_readlock_free; iter != NULL; iter = next)
-    {
-      next = iter->pr_next;
-      free(iter);
-    }
-
-  /* If initial thread, nothing to free */
-  if (!th->p_userstack)
-    {
-      size_t guardsize = th->p_guardsize;
-      /* Free the stack and thread descriptor area */
-      char *guardaddr = th->p_guardaddr;
-#ifdef _STACK_GROWS_UP
-# ifdef USE_TLS
-      size_t stacksize = guardaddr - th->p_stackaddr;
-# else
-      size_t stacksize = guardaddr - (char *)th;
-# endif
-      guardaddr = (char *)th;
-#else
-      /* Guardaddr is always set, even if guardsize is 0.  This allows
-	 us to compute everything else.  */
-# ifdef USE_TLS
-      size_t stacksize = th->p_stackaddr - guardaddr - guardsize;
-# else
-      size_t stacksize = (char *)(th+1) - guardaddr - guardsize;
-# endif
-# ifdef NEED_SEPARATE_REGISTER_STACK
-      /* Take account of the register stack, which is below guardaddr.  */
-      guardaddr -= stacksize;
-      stacksize *= 2;
-# endif
-#endif
-      /* Unmap the stack.  */
-      munmap(guardaddr, stacksize + guardsize);
-
-    }
-
-#ifdef USE_TLS
-# if TLS_DTV_AT_TP
-  th = (pthread_descr) ((char *) th + TLS_PRE_TCB_SIZE);
-# endif
-  _dl_deallocate_tls (th, true);
-#endif
-}
-
-/* Handle threads that have exited */
-
-static void pthread_exited(pid_t pid)
-{
-  pthread_descr th;
-  int detached;
-  /* Find thread with that pid */
-  for (th = __pthread_main_thread->p_nextlive;
-       th != __pthread_main_thread;
-       th = th->p_nextlive) {
-    if (th->p_pid == pid) {
-      /* Remove thread from list of active threads */
-      th->p_nextlive->p_prevlive = th->p_prevlive;
-      th->p_prevlive->p_nextlive = th->p_nextlive;
-      /* Mark thread as exited, and if detached, free its resources */
-      __pthread_lock(th->p_lock, NULL);
-      th->p_exited = 1;
-      /* If we have to signal this event do it now.  */
-      if (th->p_report_events)
-	{
-	  /* See whether TD_REAP is in any of the mask.  */
-	  int idx = __td_eventword (TD_REAP);
-	  uint32_t mask = __td_eventmask (TD_REAP);
-
-	  if ((mask & (__pthread_threads_events.event_bits[idx]
-		       | th->p_eventbuf.eventmask.event_bits[idx])) != 0)
-	    {
-	      /* Yep, we have to signal the reapage.  */
-	      th->p_eventbuf.eventnum = TD_REAP;
-	      th->p_eventbuf.eventdata = th;
-	      __pthread_last_event = th;
-
-	      /* Now call the function to signal the event.  */
-	      __linuxthreads_reap_event();
-	    }
-	}
-      detached = th->p_detached;
-      __pthread_unlock(th->p_lock);
-      if (detached)
-	pthread_free(th);
-      break;
-    }
-  }
-  /* If all threads have exited and the main thread is pending on a
-     pthread_exit, wake up the main thread and terminate ourselves. */
-  if (main_thread_exiting &&
-      __pthread_main_thread->p_nextlive == __pthread_main_thread) {
-    restart(__pthread_main_thread);
-    /* Same logic as REQ_MAIN_THREAD_EXIT. */
-  }
-}
-
-static void pthread_reap_children(void)
-{
-  pid_t pid;
-  int status;
-
-  while ((pid = waitpid_not_cancel(-1, &status, WNOHANG | __WCLONE)) > 0) {
-    pthread_exited(pid);
-    if (WIFSIGNALED(status)) {
-      /* If a thread died due to a signal, send the same signal to
-         all other threads, including the main thread. */
-      pthread_kill_all_threads(WTERMSIG(status), 1);
-      _exit(0);
-    }
-  }
-}
-
-/* Try to free the resources of a thread when requested by pthread_join
-   or pthread_detach on a terminated thread. */
-
-static void pthread_handle_free(pthread_t th_id)
-{
-  pthread_handle handle = thread_handle(th_id);
-  pthread_descr th;
-
-  __pthread_lock(&handle->h_lock, NULL);
-  if (nonexisting_handle(handle, th_id)) {
-    /* pthread_reap_children has deallocated the thread already,
-       nothing needs to be done */
-    __pthread_unlock(&handle->h_lock);
-    return;
-  }
-  th = handle->h_descr;
-  if (th->p_exited) {
-    __pthread_unlock(&handle->h_lock);
-    pthread_free(th);
-  } else {
-    /* The Unix process of the thread is still running.
-       Mark the thread as detached so that the thread manager will
-       deallocate its resources when the Unix process exits. */
-    th->p_detached = 1;
-    __pthread_unlock(&handle->h_lock);
-  }
-}
-
-/* Send a signal to all running threads */
-
-static void pthread_kill_all_threads(int sig, int main_thread_also)
-{
-  pthread_descr th;
-  for (th = __pthread_main_thread->p_nextlive;
-       th != __pthread_main_thread;
-       th = th->p_nextlive) {
-    kill(th->p_pid, sig);
-  }
-  if (main_thread_also) {
-    kill(__pthread_main_thread->p_pid, sig);
-  }
-}
-
-static void pthread_for_each_thread(void *arg,
-    void (*fn)(void *, pthread_descr))
-{
-  pthread_descr th;
-
-  for (th = __pthread_main_thread->p_nextlive;
-       th != __pthread_main_thread;
-       th = th->p_nextlive) {
-    fn(arg, th);
-  }
-
-  fn(arg, __pthread_main_thread);
-}
-
-/* Process-wide exit() */
-
-static void pthread_handle_exit(pthread_descr issuing_thread, int exitcode)
-{
-  pthread_descr th;
-  __pthread_exit_requested = 1;
-  __pthread_exit_code = exitcode;
-  /* A forced asynchronous cancellation follows.  Make sure we won't
-     get stuck later in the main thread with a system lock being held
-     by one of the cancelled threads.  Ideally one would use the same
-     code as in pthread_atfork(), but we can't distinguish system and
-     user handlers there.  */
-  __flockfilelist();
-  /* Send the CANCEL signal to all running threads, including the main
-     thread, but excluding the thread from which the exit request originated
-     (that thread must complete the exit, e.g. calling atexit functions
-     and flushing stdio buffers). */
-  for (th = issuing_thread->p_nextlive;
-       th != issuing_thread;
-       th = th->p_nextlive) {
-    kill(th->p_pid, __pthread_sig_cancel);
-  }
-  /* Now, wait for all these threads, so that they don't become zombies
-     and their times are properly added to the thread manager's times. */
-  for (th = issuing_thread->p_nextlive;
-       th != issuing_thread;
-       th = th->p_nextlive) {
-    waitpid(th->p_pid, NULL, __WCLONE);
-  }
-  __fresetlockfiles();
-  restart(issuing_thread);
-  _exit(0);
-}
-
-/* Handler for __pthread_sig_cancel in thread manager thread */
-
-void __pthread_manager_sighandler(int sig)
-{
-  int kick_manager = terminated_children == 0 && main_thread_exiting;
-  terminated_children = 1;
-
-  /* If the main thread is terminating, kick the thread manager loop
-     each time some threads terminate. This eliminates a two second
-     shutdown delay caused by the thread manager sleeping in the
-     call to __poll(). Instead, the thread manager is kicked into
-     action, reaps the outstanding threads and resumes the main thread
-     so that it can complete the shutdown. */
-
-  if (kick_manager) {
-    struct pthread_request request;
-    request.req_thread = 0;
-    request.req_kind = REQ_KICK;
-    TEMP_FAILURE_RETRY(write_not_cancel(__pthread_manager_request,
-					(char *) &request, sizeof(request)));
-  }
-}
-
-/* Adjust priority of thread manager so that it always run at a priority
-   higher than all threads */
-
-void __pthread_manager_adjust_prio(int thread_prio)
-{
-  struct sched_param param;
-
-  if (thread_prio <= manager_thread->p_priority) return;
-  param.sched_priority =
-    thread_prio < __sched_get_priority_max(SCHED_FIFO)
-    ? thread_prio + 1 : thread_prio;
-  __sched_setscheduler(manager_thread->p_pid, SCHED_FIFO, &param);
-  manager_thread->p_priority = thread_prio;
-}