diff options
Diffstat (limited to 'libpthread/sysdeps/mach/pt-stack-alloc.c')
-rw-r--r-- | libpthread/sysdeps/mach/pt-stack-alloc.c | 74 |
1 files changed, 0 insertions, 74 deletions
diff --git a/libpthread/sysdeps/mach/pt-stack-alloc.c b/libpthread/sysdeps/mach/pt-stack-alloc.c deleted file mode 100644 index 0956fc7d..00000000 --- a/libpthread/sysdeps/mach/pt-stack-alloc.c +++ /dev/null @@ -1,74 +0,0 @@ -/* Allocate a new stack. Mach version. - Copyright (C) 2000,02 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 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., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include <errno.h> - -#include <mach.h> -#include <mach/machine/vm_param.h> - -#include <pt-internal.h> - -#define __pthread_stacksize __pthread_default_attr.stacksize - -/* The next address to use for stack allocation. */ -static vm_address_t next_stack_base = VM_MIN_ADDRESS; - - -/* Allocate a new stack of size STACKSIZE. If successful, store the - address of the newly allocated stack in *STACKADDR and return 0. - Otherwise return an error code (EINVAL for an invalid stack size, - EAGAIN if the system lacked the necessary resources to allocate a - new stack). */ -int -__pthread_stack_alloc (void **stackaddr, size_t stacksize) -{ - vm_offset_t base; - int i = 0; - - if (stacksize != __pthread_stacksize) - return EINVAL; - - get_stack: - i ++; - for (base = next_stack_base; - base < VM_MAX_ADDRESS - && __vm_allocate (__mach_task_self (), &base, - __pthread_stacksize, FALSE) != KERN_SUCCESS; - base += __pthread_stacksize) - ; - - if (base >= VM_MAX_ADDRESS) - { - if (i == 1) - { - next_stack_base = VM_MIN_ADDRESS; - goto get_stack; - } - else - return EAGAIN; - } - - if (base >= VM_MAX_ADDRESS) - return EAGAIN; - - next_stack_base = base + __pthread_stacksize; - - (*stackaddr) = (void *) base; - return 0; -} |