Warner Losh | a8fe6d5 | 2021-08-03 22:04:20 -0600 | [diff] [blame] | 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 | */ |
Markus Armbruster | 9c09280 | 2022-05-06 15:49:09 +0200 | [diff] [blame] | 19 | |
| 20 | #ifndef TARGET_ARCH_THREAD_H |
| 21 | #define TARGET_ARCH_THREAD_H |
Warner Losh | a8fe6d5 | 2021-08-03 22:04:20 -0600 | [diff] [blame] | 22 | |
| 23 | /* Compare to vm_machdep.c cpu_set_upcall_kse() */ |
| 24 | static 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 | |
| 30 | static 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 Armbruster | 9c09280 | 2022-05-06 15:49:09 +0200 | [diff] [blame] | 48 | #endif /* TARGET_ARCH_THREAD_H */ |