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1d506c26 | 1 | /* Copyright (C) 2017-2024 Free Software Foundation, Inc. |
da434ccb AH |
2 | |
3 | This file is part of GDB. | |
4 | ||
5 | This program is free software; you can redistribute it and/or modify | |
6 | it under the terms of the GNU General Public License as published by | |
7 | the Free Software Foundation; either version 3 of the License, or | |
8 | (at your option) any later version. | |
9 | ||
10 | This program is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | GNU General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU General Public License | |
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
17 | ||
da434ccb | 18 | #include "aarch64.h" |
49bdb7ee | 19 | #include <stdlib.h> |
da434ccb | 20 | |
49bdb7ee AH |
21 | #include "../features/aarch64-core.c" |
22 | #include "../features/aarch64-fpu.c" | |
95228a0d | 23 | #include "../features/aarch64-sve.c" |
6dc0ebde | 24 | #include "../features/aarch64-pauth.c" |
c1bd443b | 25 | #include "../features/aarch64-mte.c" |
ca65640f | 26 | #include "../features/aarch64-sme.c" |
42019af6 | 27 | #include "../features/aarch64-sme2.c" |
414d5848 | 28 | #include "../features/aarch64-tls.c" |
da434ccb | 29 | |
95228a0d | 30 | /* See arch/aarch64.h. */ |
da434ccb AH |
31 | |
32 | target_desc * | |
0ee6b1c5 | 33 | aarch64_create_target_description (const aarch64_features &features) |
da434ccb | 34 | { |
bbb826f5 | 35 | target_desc_up tdesc = allocate_target_description (); |
49bdb7ee AH |
36 | |
37 | #ifndef IN_PROCESS_AGENT | |
bbb826f5 | 38 | set_tdesc_architecture (tdesc.get (), "aarch64"); |
49bdb7ee AH |
39 | #endif |
40 | ||
41 | long regnum = 0; | |
da434ccb | 42 | |
bbb826f5 | 43 | regnum = create_feature_aarch64_core (tdesc.get (), regnum); |
95228a0d | 44 | |
0ee6b1c5 | 45 | if (features.vq == 0) |
bbb826f5 | 46 | regnum = create_feature_aarch64_fpu (tdesc.get (), regnum); |
95228a0d | 47 | else |
0ee6b1c5 | 48 | regnum = create_feature_aarch64_sve (tdesc.get (), regnum, features.vq); |
49bdb7ee | 49 | |
0ee6b1c5 | 50 | if (features.pauth) |
bbb826f5 | 51 | regnum = create_feature_aarch64_pauth (tdesc.get (), regnum); |
6dc0ebde | 52 | |
c1bd443b | 53 | /* Memory tagging extension registers. */ |
0ee6b1c5 | 54 | if (features.mte) |
c1bd443b LM |
55 | regnum = create_feature_aarch64_mte (tdesc.get (), regnum); |
56 | ||
ba60b963 LM |
57 | /* TLS registers. */ |
58 | if (features.tls > 0) | |
59 | regnum = create_feature_aarch64_tls (tdesc.get (), regnum, features.tls); | |
414d5848 | 60 | |
ca65640f LM |
61 | if (features.svq) |
62 | regnum = create_feature_aarch64_sme (tdesc.get (), regnum, | |
63 | sve_vl_from_vq (features.svq)); | |
64 | ||
42019af6 LM |
65 | if (features.sme2) |
66 | regnum = create_feature_aarch64_sme2 (tdesc.get (), regnum); | |
67 | ||
bbb826f5 | 68 | return tdesc.release (); |
49bdb7ee | 69 | } |
d88cb738 LM |
70 | |
71 | /* See arch/aarch64.h. */ | |
72 | ||
73 | CORE_ADDR | |
74 | aarch64_remove_top_bits (CORE_ADDR pointer, CORE_ADDR mask) | |
75 | { | |
76 | /* The VA range select bit is 55. This bit tells us if we have a | |
77 | kernel-space address or a user-space address. */ | |
78 | bool kernel_address = (pointer & VA_RANGE_SELECT_BIT_MASK) != 0; | |
79 | ||
80 | /* Remove the top non-address bits. */ | |
81 | pointer &= ~mask; | |
82 | ||
83 | /* Sign-extend if we have a kernel-space address. */ | |
84 | if (kernel_address) | |
85 | pointer |= mask; | |
86 | ||
87 | return pointer; | |
88 | } | |
89 | ||
90 | /* See arch/aarch64.h. */ | |
91 | ||
92 | CORE_ADDR | |
93 | aarch64_mask_from_pac_registers (const CORE_ADDR cmask, const CORE_ADDR dmask) | |
94 | { | |
95 | /* If the masks differ, default to using the one with the most coverage. */ | |
96 | if (dmask != cmask) | |
97 | return dmask > cmask ? dmask : cmask; | |
98 | ||
99 | return cmask; | |
100 | } |