1 /* Architecture-dependent code for the Fujitsu FR-V, for GDB, the GNU Debugger. 2 Copyright 2004 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 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, write to the Free Software 18 Foundation, Inc., 59 Temple Place - Suite 330, 19 Boston, MA 02111-1307, USA. */ 20 21 /* Enumerate the possible ABIs for FR-V. */ 22 enum frv_abi 23 { 24 FRV_ABI_EABI, 25 FRV_ABI_FDPIC 26 }; 27 28 /* Register numbers. The order in which these appear define the 29 remote protocol, so take care in changing them. */ 30 enum { 31 /* Register numbers 0 -- 63 are always reserved for general-purpose 32 registers. The chip at hand may have less. */ 33 first_gpr_regnum = 0, 34 sp_regnum = 1, 35 fp_regnum = 2, 36 struct_return_regnum = 3, 37 last_gpr_regnum = 63, 38 39 /* Register numbers 64 -- 127 are always reserved for floating-point 40 registers. The chip at hand may have less. */ 41 first_fpr_regnum = 64, 42 last_fpr_regnum = 127, 43 44 /* The PC register. */ 45 pc_regnum = 128, 46 47 /* Register numbers 129 on up are always reserved for special-purpose 48 registers. */ 49 first_spr_regnum = 129, 50 psr_regnum = 129, 51 ccr_regnum = 130, 52 cccr_regnum = 131, 53 fdpic_loadmap_exec_regnum = 132, 54 fdpic_loadmap_interp_regnum = 133, 55 tbr_regnum = 135, 56 brr_regnum = 136, 57 dbar0_regnum = 137, 58 dbar1_regnum = 138, 59 dbar2_regnum = 139, 60 dbar3_regnum = 140, 61 scr0_regnum = 141, 62 scr1_regnum = 142, 63 scr2_regnum = 143, 64 scr3_regnum = 144, 65 lr_regnum = 145, 66 lcr_regnum = 146, 67 iacc0h_regnum = 147, 68 iacc0l_regnum = 148, 69 fsr0_regnum = 149, 70 acc0_regnum = 150, 71 acc7_regnum = 157, 72 accg0123_regnum = 158, 73 accg4567_regnum = 159, 74 msr0_regnum = 160, 75 msr1_regnum = 161, 76 gner0_regnum = 162, 77 gner1_regnum = 163, 78 fner0_regnum = 164, 79 fner1_regnum = 165, 80 last_spr_regnum = 165, 81 82 /* The total number of registers we know exist. */ 83 frv_num_regs = last_spr_regnum + 1, 84 85 /* Pseudo registers */ 86 first_pseudo_regnum = frv_num_regs, 87 88 /* iacc0 - the 64-bit concatenation of iacc0h and iacc0l. */ 89 iacc0_regnum = first_pseudo_regnum + 0, 90 accg0_regnum = first_pseudo_regnum + 1, 91 accg7_regnum = accg0_regnum + 7, 92 93 last_pseudo_regnum = accg7_regnum, 94 frv_num_pseudo_regs = last_pseudo_regnum - first_pseudo_regnum + 1, 95 }; 96 97 /* Return the FR-V ABI associated with GDBARCH. */ 98 enum frv_abi frv_abi (struct gdbarch *gdbarch); 99 100 /* Fetch the interpreter and executable loadmap addresses (for shared 101 library support) for the FDPIC ABI. Return 0 if successful, -1 if 102 not. (E.g, -1 will be returned if the ABI isn't the FDPIC ABI.) */ 103 int frv_fdpic_loadmap_addresses (struct gdbarch *gdbarch, 104 CORE_ADDR *interp_addr, CORE_ADDR *exec_addr); 105 106 /* Given a function entry point, find and return the GOT address for the 107 containing load module. */ 108 CORE_ADDR frv_fdpic_find_global_pointer (CORE_ADDR addr); 109 110 /* Given a function entry point, find and return the canonical descriptor 111 for that function, if one exists. If no canonical descriptor could 112 be found, return 0. */ 113 CORE_ADDR frv_fdpic_find_canonical_descriptor (CORE_ADDR entry_point); 114