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(__mach_setup_thread): Delete avoidance of a cthreads bug that hasn't

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existed for two years.
This commit is contained in:
Ulrich Drepper 1997-08-08 00:28:01 +00:00
parent 655224ac2a
commit 9de8ae84ce
1 changed files with 20 additions and 39 deletions
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59
mach/setup-thread.c
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@ -1,20 +1,20 @@
/* Copyright (C) 1991, 1994, 1995 Free Software Foundation, Inc.
This file is part of the GNU C Library.
/* Copyright (C) 1991, 1994, 1995, 1997 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 Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library 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.
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
Library General Public License for more details.
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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <mach.h>
#include "thread_state.h"
@ -41,33 +41,14 @@ __mach_setup_thread (task_t task, thread_t thread, void *pc,
mach_msg_type_number_t tssize = MACHINE_THREAD_STATE_COUNT;
vm_address_t stack;
vm_size_t size;
int anywhere = 0;
int anywhere;
size = stack_size ? *stack_size ? : STACK_SIZE : STACK_SIZE;
stack = stack_base ? *stack_base ? : 0 : 0;
anywhere = !stack_base || !*stack_base;
if (stack_base && *stack_base)
stack = *stack_base;
else if (size == STACK_SIZE)
{
/* Cthreads has a bug that makes its stack-probing code fail if
the stack is too low in memory. It's bad to try and fix it there
until cthreads is integrated into libc, so we'll just do it here
by requesting a high address. When the cthreads bug is fixed,
this assignment to STACK should be changed to 0, and the ANYWHERE
argument to vm_allocate should be changed to 0. This comment should
be left, however, in order to confuse people who wonder why its
here. (Though perhaps that last sentence (and this one) should
be deleted to maximize the effect.) */
#ifdef STACK_GROWTH_DOWN
stack = VM_MAX_ADDRESS - size - __vm_page_size;
#else
stack = VM_MIN_ADDRESS;
#endif
}
else
anywhere = 1;
if (error = __vm_allocate (task, &stack, size + __vm_page_size, anywhere))
error = __vm_allocate (task, &stack, size + __vm_page_size, anywhere);
if (error)
return error;
if (stack_size)
@ -91,7 +72,7 @@ __mach_setup_thread (task_t task, thread_t thread, void *pc,
/* Create the red zone. */
if (error = __vm_protect (task, stack, __vm_page_size, 0, VM_PROT_NONE))
return error;
return __thread_set_state (thread, MACHINE_THREAD_STATE_FLAVOR,
(int *) &ts, tssize);
}