1 /* Architecture-dependent code for the Fujitsu FR-V, for GDB, the GNU Debugger.
2 Copyright 2004 Free Software Foundation, Inc.
4 This file is part of GDB.
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.
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.
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. */
21 /* Enumerate the possible ABIs for FR-V. */
28 /* Register numbers. The order in which these appear define the
29 remote protocol, so take care in changing them. */
31 /* Register numbers 0 -- 63 are always reserved for general-purpose
32 registers. The chip at hand may have less. */
36 struct_return_regnum = 3,
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,
44 /* The PC register. */
47 /* Register numbers 129 on up are always reserved for special-purpose
49 first_spr_regnum = 129,
53 fdpic_loadmap_exec_regnum = 132,
54 fdpic_loadmap_interp_regnum = 133,
72 accg0123_regnum = 158,
73 accg4567_regnum = 159,
80 last_spr_regnum = 165,
82 /* The total number of registers we know exist. */
83 frv_num_regs = last_spr_regnum + 1,
85 /* Pseudo registers */
86 first_pseudo_regnum = frv_num_regs,
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,
93 last_pseudo_regnum = accg7_regnum,
94 frv_num_pseudo_regs = last_pseudo_regnum - first_pseudo_regnum + 1,
97 /* Return the FR-V ABI associated with GDBARCH. */
98 enum frv_abi frv_abi (struct gdbarch *gdbarch);
100 /* Associate a sigcontext address fetcher with GDBARCH. */
101 void frv_set_sigcontext_reg_addr (struct gdbarch *gdbarch,
102 CORE_ADDR (*sigcontext_reg_addr)
103 (struct frame_info *, int, CORE_ADDR *));
105 /* Fetch the interpreter and executable loadmap addresses (for shared
106 library support) for the FDPIC ABI. Return 0 if successful, -1 if
107 not. (E.g, -1 will be returned if the ABI isn't the FDPIC ABI.) */
108 int frv_fdpic_loadmap_addresses (struct gdbarch *gdbarch,
109 CORE_ADDR *interp_addr, CORE_ADDR *exec_addr);
111 /* Given a function entry point, find and return the GOT address for the
112 containing load module. */
113 CORE_ADDR frv_fdpic_find_global_pointer (CORE_ADDR addr);
115 /* Given a function entry point, find and return the canonical descriptor
116 for that function, if one exists. If no canonical descriptor could
117 be found, return 0. */
118 CORE_ADDR frv_fdpic_find_canonical_descriptor (CORE_ADDR entry_point);