summaryrefslogtreecommitdiff
path: root/libpthread/sysdeps/mach/hurd/ia32/pt-setup.c
diff options
context:
space:
mode:
Diffstat (limited to 'libpthread/sysdeps/mach/hurd/ia32/pt-setup.c')
-rw-r--r--libpthread/sysdeps/mach/hurd/ia32/pt-setup.c108
1 files changed, 0 insertions, 108 deletions
diff --git a/libpthread/sysdeps/mach/hurd/ia32/pt-setup.c b/libpthread/sysdeps/mach/hurd/ia32/pt-setup.c
deleted file mode 100644
index 5420dc8e..00000000
--- a/libpthread/sysdeps/mach/hurd/ia32/pt-setup.c
+++ /dev/null
@@ -1,108 +0,0 @@
-/* Setup thread stack. Hurd/i386 version.
- Copyright (C) 2000, 2002, 2005, 2007, 2008 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 <stdint.h>
-#include <assert.h>
-#include <mach.h>
-
-#include <pt-internal.h>
-
-/* The stack layout used on the i386 is:
-
- -----------------
- | ARG |
- -----------------
- | START_ROUTINE |
- -----------------
- | 0 |
- -----------------
- | |
- | Fast TSD |
- | |
- -----------------
-
- We need to reserve __hurd_threadvar_max `unsigned long int's' of
- (fast) thread-specific data (TSD) for the Hurd. */
-
-/* Set up the stack for THREAD, such that it appears as if
- START_ROUTINE and ARG were passed to the new thread's entry-point.
- Return the stack pointer for the new thread. */
-static void *
-stack_setup (struct __pthread *thread,
- void *(*start_routine)(void *), void *arg)
-{
- error_t err;
- uintptr_t *bottom, *top;
-
- /* Calculate the top of the new stack. */
- bottom = thread->stackaddr;
- top = (uintptr_t *) ((uintptr_t) bottom + thread->stacksize);
-
- /* Next, make room for the TSDs. */
- top -= __hurd_threadvar_max;
-
- /* Save the self pointer. */
- top[_HURD_THREADVAR_THREAD] = (uintptr_t) thread;
-
- if (start_routine)
- {
- /* And then the call frame. */
- top -= 2;
- top = (uintptr_t *) ((uintptr_t) top & ~0xf);
- top[1] = (uintptr_t) arg; /* Argument to START_ROUTINE. */
- top[0] = (uintptr_t) start_routine;
- *--top = 0; /* Fake return address. */
- }
-
- if (thread->guardsize)
- {
- err = __vm_protect (__mach_task_self (), (vm_address_t) bottom,
- thread->guardsize, 0, 0);
- assert_perror (err);
- }
-
- return top;
-}
-
-int
-__pthread_setup (struct __pthread *thread,
- void (*entry_point)(void *(*)(void *), void *),
- void *(*start_routine)(void *), void *arg)
-{
- error_t err;
- mach_port_t ktid;
-
- thread->mcontext.pc = entry_point;
- thread->mcontext.sp = stack_setup (thread, start_routine, arg);
-
- thread->tcb->self = thread->kernel_thread;
-
- ktid = __mach_thread_self ();
- if (thread->kernel_thread != ktid)
- {
- err = __thread_set_pcsptp (thread->kernel_thread,
- 1, thread->mcontext.pc,
- 1, thread->mcontext.sp,
- 1, thread->tcb);
- assert_perror (err);
- }
- __mach_port_deallocate (__mach_task_self (), ktid);
-
- return 0;
-}