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1 | /* |
2 | * arm 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_START_MMAP 0x80000000 | |
23 | #define ELF_ET_DYN_LOAD_ADDR 0x500000 | |
24 | ||
25 | #define elf_check_arch(x) ((x) == EM_ARM) | |
26 | ||
27 | #define ELF_CLASS ELFCLASS32 | |
28 | #define ELF_DATA ELFDATA2LSB | |
29 | #define ELF_ARCH EM_ARM | |
30 | ||
31 | #define USE_ELF_CORE_DUMP | |
32 | #define ELF_EXEC_PAGESIZE 4096 | |
33 | ||
6c5d60fa WL |
34 | #define ELF_HWCAP get_elf_hwcap() |
35 | ||
36 | #define GET_FEATURE(feat, hwcap) \ | |
37 | do { if (arm_feature(&cpu->env, feat)) { hwcaps |= hwcap; } } while (0) | |
38 | ||
39 | #define GET_FEATURE_ID(feat, hwcap) \ | |
40 | do { if (cpu_isar_feature(feat, cpu)) { hwcaps |= hwcap; } } while (0) | |
41 | ||
42 | enum { | |
43 | ARM_HWCAP_ARM_SWP = 1 << 0, | |
44 | ARM_HWCAP_ARM_HALF = 1 << 1, | |
45 | ARM_HWCAP_ARM_THUMB = 1 << 2, | |
46 | ARM_HWCAP_ARM_26BIT = 1 << 3, | |
47 | ARM_HWCAP_ARM_FAST_MULT = 1 << 4, | |
48 | ARM_HWCAP_ARM_FPA = 1 << 5, | |
49 | ARM_HWCAP_ARM_VFP = 1 << 6, | |
50 | ARM_HWCAP_ARM_EDSP = 1 << 7, | |
51 | ARM_HWCAP_ARM_JAVA = 1 << 8, | |
52 | ARM_HWCAP_ARM_IWMMXT = 1 << 9, | |
53 | ARM_HWCAP_ARM_CRUNCH = 1 << 10, | |
54 | ARM_HWCAP_ARM_THUMBEE = 1 << 11, | |
55 | ARM_HWCAP_ARM_NEON = 1 << 12, | |
56 | ARM_HWCAP_ARM_VFPv3 = 1 << 13, | |
57 | ARM_HWCAP_ARM_VFPv3D16 = 1 << 14, | |
58 | ARM_HWCAP_ARM_TLS = 1 << 15, | |
59 | ARM_HWCAP_ARM_VFPv4 = 1 << 16, | |
60 | ARM_HWCAP_ARM_IDIVA = 1 << 17, | |
61 | ARM_HWCAP_ARM_IDIVT = 1 << 18, | |
62 | ARM_HWCAP_ARM_VFPD32 = 1 << 19, | |
63 | ARM_HWCAP_ARM_LPAE = 1 << 20, | |
64 | ARM_HWCAP_ARM_EVTSTRM = 1 << 21, | |
65 | }; | |
66 | ||
67 | static uint32_t get_elf_hwcap(void) | |
68 | { | |
69 | ARMCPU *cpu = ARM_CPU(thread_cpu); | |
70 | uint32_t hwcaps = 0; | |
71 | ||
72 | hwcaps |= ARM_HWCAP_ARM_SWP; | |
73 | hwcaps |= ARM_HWCAP_ARM_HALF; | |
74 | hwcaps |= ARM_HWCAP_ARM_THUMB; | |
75 | hwcaps |= ARM_HWCAP_ARM_FAST_MULT; | |
76 | ||
77 | /* probe for the extra features */ | |
78 | /* EDSP is in v5TE and above */ | |
79 | GET_FEATURE(ARM_FEATURE_V5, ARM_HWCAP_ARM_EDSP); | |
80 | GET_FEATURE(ARM_FEATURE_IWMMXT, ARM_HWCAP_ARM_IWMMXT); | |
81 | GET_FEATURE(ARM_FEATURE_THUMB2EE, ARM_HWCAP_ARM_THUMBEE); | |
82 | GET_FEATURE(ARM_FEATURE_NEON, ARM_HWCAP_ARM_NEON); | |
83 | GET_FEATURE(ARM_FEATURE_V6K, ARM_HWCAP_ARM_TLS); | |
84 | GET_FEATURE(ARM_FEATURE_LPAE, ARM_HWCAP_ARM_LPAE); | |
85 | GET_FEATURE_ID(aa32_arm_div, ARM_HWCAP_ARM_IDIVA); | |
86 | GET_FEATURE_ID(aa32_thumb_div, ARM_HWCAP_ARM_IDIVT); | |
87 | GET_FEATURE_ID(aa32_vfp, ARM_HWCAP_ARM_VFP); | |
88 | ||
89 | if (cpu_isar_feature(aa32_fpsp_v3, cpu) || | |
90 | cpu_isar_feature(aa32_fpdp_v3, cpu)) { | |
91 | hwcaps |= ARM_HWCAP_ARM_VFPv3; | |
92 | if (cpu_isar_feature(aa32_simd_r32, cpu)) { | |
93 | hwcaps |= ARM_HWCAP_ARM_VFPD32; | |
94 | } else { | |
95 | hwcaps |= ARM_HWCAP_ARM_VFPv3D16; | |
96 | } | |
97 | } | |
98 | GET_FEATURE_ID(aa32_simdfmac, ARM_HWCAP_ARM_VFPv4); | |
99 | ||
100 | return hwcaps; | |
101 | } | |
102 | ||
103 | #undef GET_FEATURE | |
104 | #undef GET_FEATURE_ID | |
082e6531 WL |
105 | |
106 | #endif /* _TARGET_ARCH_ELF_H_ */ |