projects / mirror_qemu.git / blame
| Commit | Line | Data |
|---|---|---|
| 66ef252f WL |
1 | /* |
| 2 | * i386 ELF definitions | |
| 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_ELF_H_ | |
| 20 | #define _TARGET_ARCH_ELF_H_ | |
| 21 | ||
| 22 | #define ELF_PLATFORM get_elf_platform() | |
| 23 | ||
| 24 | static const char *get_elf_platform(void) | |
| 25 | { | |
| 26 | static char elf_platform[] = "i386"; | |
| 27 | int family = object_property_get_int(OBJECT(thread_cpu), "family", NULL); | |
| 28 | if (family > 6) { | |
| 29 | family = 6; | |
| 30 | } | |
| 31 | if (family >= 3) { | |
| 32 | elf_platform[1] = '0' + family; | |
| 33 | } | |
| 34 | return elf_platform; | |
| 35 | } | |
| 36 | ||
| 37 | #define ELF_HWCAP get_elf_hwcap() | |
| 38 | ||
| 39 | static uint32_t get_elf_hwcap(void) | |
| 40 | { | |
| 41 | X86CPU *cpu = X86_CPU(thread_cpu); | |
| 42 | ||
| 43 | return cpu->env.features[FEAT_1_EDX]; | |
| 44 | } | |
| 45 | ||
| 46 | #define ELF_START_MMAP 0x80000000 | |
| 47 | ||
| 48 | /* | |
| 49 | * This is used to ensure we don't load something for the wrong architecture. | |
| 50 | */ | |
| 51 | #define elf_check_arch(x) (((x) == EM_386) || ((x) == EM_486)) | |
| 52 | ||
| 53 | /* | |
| 54 | * These are used to set parameters in the core dumps. | |
| 55 | */ | |
| 56 | #define ELF_CLASS ELFCLASS32 | |
| 57 | #define ELF_DATA ELFDATA2LSB | |
| 58 | #define ELF_ARCH EM_386 | |
| 59 | ||
| 60 | static inline void init_thread(struct target_pt_regs *regs, | |
| 61 | struct image_info *infop) | |
| 62 | { | |
| 63 | regs->esp = infop->start_stack; | |
| 64 | regs->eip = infop->entry; | |
| 65 | ||
| 66 | /* | |
| 67 | * SVR4/i386 ABI (pages 3-31, 3-32) says that when the program | |
| 68 | * starts %edx contains a pointer to a function which might be | |
| 69 | * registered using `atexit'. This provides a mean for the | |
| 70 | * dynamic linker to call DT_FINI functions for shared libraries | |
| 71 | * that have been loaded before the code runs. | |
| 72 | * | |
| 73 | * A value of 0 tells we have no such handler. | |
| 74 | */ | |
| 75 | regs->edx = 0; | |
| 76 | } | |
| 77 | ||
| 78 | #define USE_ELF_CORE_DUMP | |
| 79 | #define ELF_EXEC_PAGESIZE 4096 | |
| 80 | ||
| 81 | #endif /* _TARGET_ARCH_ELF_H_ */ |