blob: cee2148d946dbebcdcf3aeb6412c3d512a8e7a39 [file] [log] [blame]
Warner Losha8fe6d52021-08-03 22:04:20 -06001/*
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 */
Markus Armbruster9c092802022-05-06 15:49:09 +020019
20#ifndef TARGET_ARCH_THREAD_H
21#define TARGET_ARCH_THREAD_H
Warner Losha8fe6d52021-08-03 22:04:20 -060022
23/* Compare to vm_machdep.c cpu_set_upcall_kse() */
24static inline void target_thread_set_upcall(CPUX86State *regs, abi_ulong entry,
25 abi_ulong arg, abi_ulong stack_base, abi_ulong stack_size)
26{
27 /* XXX */
28}
29
30static inline void target_thread_init(struct target_pt_regs *regs,
31 struct image_info *infop)
32{
33 regs->esp = infop->start_stack;
34 regs->eip = infop->entry;
35
36 /*
37 * SVR4/i386 ABI (pages 3-31, 3-32) says that when the program starts %edx
38 * contains a pointer to a function which might be registered using
39 * `atexit'. This provides a mean for the dynamic linker to call DT_FINI
40 * functions for shared libraries that have been loaded before the code
41 * runs.
42 *
43 * A value of 0 tells we have no such handler.
44 */
45 regs->edx = 0;
46}
47
Markus Armbruster9c092802022-05-06 15:49:09 +020048#endif /* TARGET_ARCH_THREAD_H */