1 /* Architecture-dependent code for the Fujitsu FR-V, for GDB, the GNU Debugger. 2 Copyright (C) 2004-2017 Free Software Foundation, Inc. 3 4 This file is part of GDB. 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 3 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 /* Enumerate the possible ABIs for FR-V. */ 20 enum frv_abi 21 { 22 FRV_ABI_EABI, 23 FRV_ABI_FDPIC 24 }; 25 26 /* Register numbers. The order in which these appear define the 27 remote protocol, so take care in changing them. */ 28 enum { 29 /* Register numbers 0 -- 63 are always reserved for general-purpose 30 registers. The chip at hand may have less. */ 31 first_gpr_regnum = 0, 32 sp_regnum = 1, 33 fp_regnum = 2, 34 struct_return_regnum = 3, 35 last_gpr_regnum = 63, 36 37 /* Register numbers 64 -- 127 are always reserved for floating-point 38 registers. The chip at hand may have less. */ 39 first_fpr_regnum = 64, 40 last_fpr_regnum = 127, 41 42 /* The PC register. */ 43 pc_regnum = 128, 44 45 /* Register numbers 129 on up are always reserved for special-purpose 46 registers. */ 47 first_spr_regnum = 129, 48 psr_regnum = 129, 49 ccr_regnum = 130, 50 cccr_regnum = 131, 51 fdpic_loadmap_exec_regnum = 132, 52 fdpic_loadmap_interp_regnum = 133, 53 tbr_regnum = 135, 54 brr_regnum = 136, 55 dbar0_regnum = 137, 56 dbar1_regnum = 138, 57 dbar2_regnum = 139, 58 dbar3_regnum = 140, 59 scr0_regnum = 141, 60 scr1_regnum = 142, 61 scr2_regnum = 143, 62 scr3_regnum = 144, 63 lr_regnum = 145, 64 lcr_regnum = 146, 65 iacc0h_regnum = 147, 66 iacc0l_regnum = 148, 67 fsr0_regnum = 149, 68 acc0_regnum = 150, 69 acc7_regnum = 157, 70 accg0123_regnum = 158, 71 accg4567_regnum = 159, 72 msr0_regnum = 160, 73 msr1_regnum = 161, 74 gner0_regnum = 162, 75 gner1_regnum = 163, 76 fner0_regnum = 164, 77 fner1_regnum = 165, 78 last_spr_regnum = 165, 79 80 /* The total number of registers we know exist. */ 81 frv_num_regs = last_spr_regnum + 1, 82 83 /* Pseudo registers */ 84 first_pseudo_regnum = frv_num_regs, 85 86 /* iacc0 - the 64-bit concatenation of iacc0h and iacc0l. */ 87 iacc0_regnum = first_pseudo_regnum + 0, 88 accg0_regnum = first_pseudo_regnum + 1, 89 accg7_regnum = accg0_regnum + 7, 90 91 last_pseudo_regnum = accg7_regnum, 92 frv_num_pseudo_regs = last_pseudo_regnum - first_pseudo_regnum + 1, 93 }; 94 95 /* Return the FR-V ABI associated with GDBARCH. */ 96 enum frv_abi frv_abi (struct gdbarch *gdbarch); 97 98 /* Fetch the interpreter and executable loadmap addresses (for shared 99 library support) for the FDPIC ABI. Return 0 if successful, -1 if 100 not. (E.g, -1 will be returned if the ABI isn't the FDPIC ABI.) */ 101 int frv_fdpic_loadmap_addresses (struct gdbarch *gdbarch, 102 CORE_ADDR *interp_addr, CORE_ADDR *exec_addr); 103 104 /* Given a function entry point, find and return the GOT address for the 105 containing load module. */ 106 CORE_ADDR frv_fdpic_find_global_pointer (CORE_ADDR addr); 107 108 /* Given a function entry point, find and return the canonical descriptor 109 for that function, if one exists. If no canonical descriptor could 110 be found, return 0. */ 111 CORE_ADDR frv_fdpic_find_canonical_descriptor (CORE_ADDR entry_point); 112 113 114 /* Given an objfile, return the address of its link map. This value is 115 needed for TLS support. */ 116 CORE_ADDR frv_fetch_objfile_link_map (struct objfile *objfile); 117 118 struct target_so_ops; 119 extern struct target_so_ops frv_so_ops; 120 121