| 1 | /* Architecture-dependent code for the Fujitsu FR-V, for GDB, the GNU Debugger. |
| 2 | Copyright (C) 2004-2016 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 | |