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d2912cb1 | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
87c1a3fb G |
2 | /* |
3 | * linux/arch/unicore32/include/asm/elf.h | |
4 | * | |
5 | * Code specific to PKUnity SoC and UniCore ISA | |
6 | * | |
7 | * Copyright (C) 2001-2010 GUAN Xue-tao | |
87c1a3fb G |
8 | */ |
9 | ||
10 | #ifndef __UNICORE_ELF_H__ | |
11 | #define __UNICORE_ELF_H__ | |
12 | ||
13 | #include <asm/hwcap.h> | |
14 | ||
15 | /* | |
16 | * ELF register definitions.. | |
17 | */ | |
18 | #include <asm/ptrace.h> | |
03f7e6ad | 19 | #include <linux/elf-em.h> |
87c1a3fb G |
20 | |
21 | typedef unsigned long elf_greg_t; | |
22 | typedef unsigned long elf_freg_t[3]; | |
23 | ||
24 | #define ELF_NGREG (sizeof(struct pt_regs) / sizeof(elf_greg_t)) | |
25 | typedef elf_greg_t elf_gregset_t[ELF_NGREG]; | |
26 | ||
27 | typedef struct fp_state elf_fpregset_t; | |
28 | ||
87c1a3fb G |
29 | #define R_UNICORE_NONE 0 |
30 | #define R_UNICORE_PC24 1 | |
31 | #define R_UNICORE_ABS32 2 | |
32 | #define R_UNICORE_CALL 28 | |
33 | #define R_UNICORE_JUMP24 29 | |
34 | ||
35 | /* | |
36 | * These are used to set parameters in the core dumps. | |
37 | */ | |
38 | #define ELF_CLASS ELFCLASS32 | |
39 | #define ELF_DATA ELFDATA2LSB | |
40 | #define ELF_ARCH EM_UNICORE | |
41 | ||
42 | /* | |
43 | * This yields a string that ld.so will use to load implementation | |
44 | * specific libraries for optimization. This is more specific in | |
45 | * intent than poking at uname or /proc/cpuinfo. | |
46 | * | |
47 | */ | |
48 | #define ELF_PLATFORM_SIZE 8 | |
49 | #define ELF_PLATFORM (elf_platform) | |
50 | ||
51 | extern char elf_platform[]; | |
52 | ||
53 | struct elf32_hdr; | |
54 | ||
55 | /* | |
56 | * This is used to ensure we don't load something for the wrong architecture. | |
57 | */ | |
58 | extern int elf_check_arch(const struct elf32_hdr *); | |
59 | #define elf_check_arch elf_check_arch | |
60 | ||
61 | struct task_struct; | |
62 | int dump_task_regs(struct task_struct *t, elf_gregset_t *elfregs); | |
63 | #define ELF_CORE_COPY_TASK_REGS dump_task_regs | |
64 | ||
65 | #define ELF_EXEC_PAGESIZE 4096 | |
66 | ||
67 | /* This is the location that an ET_DYN program is loaded if exec'ed. Typical | |
68 | use of this is to invoke "./ld.so someprog" to test out a new version of | |
69 | the loader. We need to make sure that it is out of the way of the program | |
70 | that it will "exec", and that there is sufficient room for the brk. */ | |
71 | ||
72 | #define ELF_ET_DYN_BASE (2 * TASK_SIZE / 3) | |
73 | ||
74 | /* When the program starts, a1 contains a pointer to a function to be | |
75 | registered with atexit, as per the SVR4 ABI. A value of 0 means we | |
76 | have no such handler. */ | |
77 | #define ELF_PLAT_INIT(_r, load_addr) {(_r)->UCreg_00 = 0; } | |
78 | ||
79 | extern void elf_set_personality(const struct elf32_hdr *); | |
80 | #define SET_PERSONALITY(ex) elf_set_personality(&(ex)) | |
81 | ||
82 | struct mm_struct; | |
83 | extern unsigned long arch_randomize_brk(struct mm_struct *mm); | |
84 | #define arch_randomize_brk arch_randomize_brk | |
85 | ||
86 | extern int vectors_user_mapping(void); | |
87 | #define arch_setup_additional_pages(bprm, uses_interp) vectors_user_mapping() | |
88 | #define ARCH_HAS_SETUP_ADDITIONAL_PAGES | |
89 | ||
90 | #endif |