1 /* GNU/Linux/aarch64 specific target description, for the remote server 2 for GDB. 3 Copyright (C) 2017-2024 Free Software Foundation, Inc. 4 5 This file is part of GDB. 6 7 This program is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 3 of the License, or 10 (at your option) any later version. 11 12 This program is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 GNU General Public License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with this program. If not, see <http://www.gnu.org/licenses/>. */ 19 20 21 #include "linux-aarch64-tdesc.h" 22 23 #include "tdesc.h" 24 #include "arch/aarch64.h" 25 #include "linux-aarch32-low.h" 26 #include <inttypes.h> 27 #include <unordered_map> 28 29 /* All possible aarch64 target descriptors. */ 30 static std::unordered_map<aarch64_features, target_desc *> tdesc_aarch64_map; 31 32 static std::vector<const char *> expedited_registers; 33 34 /* Create the aarch64 target description. */ 35 36 const target_desc * 37 aarch64_linux_read_description (const aarch64_features &features) 38 { 39 if (features.vq > AARCH64_MAX_SVE_VQ) 40 error (_("VQ is %" PRIu64 ", maximum supported value is %d"), features.vq, 41 AARCH64_MAX_SVE_VQ); 42 43 if (features.svq > AARCH64_MAX_SVE_VQ) 44 error (_("Streaming svq is %" PRIu8 ", maximum supported value is %d"), 45 features.svq, 46 AARCH64_MAX_SVE_VQ); 47 48 struct target_desc *tdesc = tdesc_aarch64_map[features]; 49 50 if (tdesc == NULL) 51 { 52 tdesc = aarch64_create_target_description (features); 53 expedited_registers.clear (); 54 55 /* Configure the expedited registers. By default we include x29, sp and 56 pc. */ 57 expedited_registers.push_back ("x29"); 58 expedited_registers.push_back ("sp"); 59 expedited_registers.push_back ("pc"); 60 61 if (features.vq > 0) 62 expedited_registers.push_back ("vg"); 63 if (features.svq > 0) 64 expedited_registers.push_back ("svg"); 65 66 expedited_registers.push_back (nullptr); 67 68 init_target_desc (tdesc, (const char **) expedited_registers.data ()); 69 70 tdesc_aarch64_map[features] = tdesc; 71 } 72 73 return tdesc; 74 } 75