1 /*
2  *  i386 thread support
3  *
4  *  Copyright (c) 2013 Stacey D. Son
5  *
6  *  This program is free software; you can redistribute it and/or modify
7  *  it under the terms of the GNU General Public License as published by
8  *  the Free Software Foundation; either version 2 of the License, or
9  *  (at your option) any later version.
10  *
11  *  This program is distributed in the hope that it will be useful,
12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  *  GNU General Public License for more details.
15  *
16  *  You should have received a copy of the GNU General Public License
17  *  along with this program; if not, see <http://www.gnu.org/licenses/>.
18  */
19 #ifndef _TARGET_ARCH_THREAD_H_
20 #define _TARGET_ARCH_THREAD_H_
21 
22 /* Compare to vm_machdep.c cpu_set_upcall_kse() */
23 static inline void target_thread_set_upcall(CPUX86State *regs, abi_ulong entry,
24     abi_ulong arg, abi_ulong stack_base, abi_ulong stack_size)
25 {
26     /* XXX */
27 }
28 
29 static inline void target_thread_init(struct target_pt_regs *regs,
30         struct image_info *infop)
31 {
32     regs->esp = infop->start_stack;
33     regs->eip = infop->entry;
34 
35     /*
36      * SVR4/i386 ABI (pages 3-31, 3-32) says that when the program starts %edx
37      * contains a pointer to a function which might be registered using
38      * `atexit'.  This provides a mean for the dynamic linker to call DT_FINI
39      * functions for shared libraries that have been loaded before the code
40      * runs.
41      *
42      * A value of 0 tells we have no such handler.
43      */
44     regs->edx = 0;
45 }
46 
47 #endif /* !_TARGET_ARCH_THREAD_H_ */
48