1 /* Target-dependent code for FreeBSD/sparc64.
3 Copyright 2003 Free Software Foundation, Inc.
5 This file is part of GDB.
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 2 of the License, or
10 (at your option) any later version.
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.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA. */
28 #include "gdb_string.h"
30 #include "sparc64-tdep.h"
32 /* From <machine/reg.h>. */
34 /* Offset of registers in `struct reg'. */
35 int sparc64fbsd_r_global_offset = (0 * 8);
36 int sparc64fbsd_r_out_offset = (8 * 8);
37 int sparc64fbsd_r_fprs_offset = (16 * 8);
38 int sparc64fbsd_r_tnpc_offset = (24 * 8);
39 int sparc64fbsd_r_tpc_offset = (25 * 8);
40 int sparc64fbsd_r_tstate_offset = (26 * 8);
41 int sparc64fbsd_r_y_offset = (28 * 8);
43 /* Size of `struct reg' and `struct fpreg'. */
44 int sparc64fbsd_sizeof_struct_reg = 256;
45 int sparc64fbsd_sizeof_struct_fpreg = 272;
48 sparc64fbsd_supply_reg (const char *regs, int regnum)
53 if (regnum == SPARC64_PC_REGNUM || regnum == -1)
54 supply_register (SPARC64_PC_REGNUM, regs + sparc64fbsd_r_tpc_offset);
56 if (regnum == SPARC64_NPC_REGNUM || regnum == -1)
57 supply_register (SPARC64_NPC_REGNUM, regs + sparc64fbsd_r_tnpc_offset);
59 if (regnum == SPARC64_STATE_REGNUM || regnum == -1)
60 supply_register (SPARC64_STATE_REGNUM, regs + sparc64fbsd_r_tstate_offset);
62 if (regnum == SPARC64_FPRS_REGNUM || regnum == -1)
63 supply_register (SPARC64_FPRS_REGNUM, regs + sparc64fbsd_r_fprs_offset);
65 if (regnum == SPARC64_Y_REGNUM || regnum == -1)
66 supply_register (SPARC64_Y_REGNUM, regs + sparc64fbsd_r_y_offset);
68 if ((regnum >= SPARC_G0_REGNUM && regnum <= SPARC_G7_REGNUM) || regnum == -1)
70 if (regnum == SPARC_G0_REGNUM || regnum == -1)
71 supply_register (SPARC_G0_REGNUM, NULL); /* %g0 is always zero. */
72 for (i = SPARC_G1_REGNUM; i <= SPARC_G7_REGNUM; i++)
74 if (regnum == i || regnum == -1)
75 supply_register (i, (regs + sparc64fbsd_r_global_offset
76 + ((i - SPARC_G0_REGNUM) * 8)));
80 if ((regnum >= SPARC_O0_REGNUM && regnum <= SPARC_O7_REGNUM) || regnum == -1)
82 for (i = SPARC_O0_REGNUM; i <= SPARC_O7_REGNUM; i++)
84 if (regnum == i || regnum == -1)
85 supply_register (i, (regs + sparc64fbsd_r_out_offset
86 + ((i - SPARC_O0_REGNUM) * 8)));
90 /* Inputs and Locals are stored onto the stack by by the kernel. */
91 if ((regnum >= SPARC_L0_REGNUM && regnum <= SPARC_I7_REGNUM) || regnum == -1)
95 regcache_cooked_read_unsigned (current_regcache, SPARC_SP_REGNUM, &sp);
96 sparc64_supply_rwindow (sp, regnum);
101 sparc64fbsd_fill_reg (char *regs, int regnum)
106 if (regnum == SPARC64_PC_REGNUM || regnum == -1)
107 regcache_collect (SPARC64_PC_REGNUM, regs + sparc64fbsd_r_tpc_offset);
109 if (regnum == SPARC64_NPC_REGNUM || regnum == -1)
110 regcache_collect (SPARC64_NPC_REGNUM, regs + sparc64fbsd_r_tnpc_offset);
112 if (regnum == SPARC64_FPRS_REGNUM || regnum == -1)
113 regcache_collect (SPARC64_FPRS_REGNUM, regs + sparc64fbsd_r_fprs_offset);
115 if (regnum == SPARC64_Y_REGNUM || regnum == -1)
116 regcache_collect (SPARC64_Y_REGNUM, regs + sparc64fbsd_r_y_offset);
118 if ((regnum >= SPARC_G0_REGNUM && regnum <= SPARC_G7_REGNUM) || regnum == -1)
120 /* %g0 is always zero. */
121 for (i = SPARC_G1_REGNUM; i <= SPARC_G7_REGNUM; i++)
123 if (regnum == i || regnum == -1)
124 regcache_collect (i, (regs + sparc64fbsd_r_global_offset
125 + ((i - SPARC_G0_REGNUM) * 8)));
129 if ((regnum >= SPARC_O0_REGNUM && regnum <= SPARC_O7_REGNUM) || regnum == -1)
131 for (i = SPARC_O0_REGNUM; i <= SPARC_O7_REGNUM; i++)
133 if (regnum == i || regnum == -1)
134 regcache_collect (i, (regs + sparc64fbsd_r_out_offset
135 + ((i - SPARC_O0_REGNUM) * 8)));
139 /* Responsibility for the stack regs is pushed off onto the caller. */
143 sparc64fbsd_supply_fpreg (const char *fpregs, int regnum)
147 for (i = 0; i < 32; i++)
149 if (regnum == (SPARC_F0_REGNUM + i) || regnum == -1)
150 supply_register (SPARC_F0_REGNUM + i, fpregs + (i * 4));
153 for (i = 0; i < 16; i++)
155 if (regnum == (SPARC64_F32_REGNUM + i) || regnum == -1)
156 supply_register (SPARC64_F32_REGNUM + i, fpregs + (32 * 4) + (i * 8));
159 if (regnum == SPARC64_FSR_REGNUM || regnum == -1)
160 supply_register (SPARC64_FSR_REGNUM, fpregs + (32 * 4) + (16 * 8));
164 sparc64fbsd_fill_fpreg (char *fpregs, int regnum)
168 for (i = 0; i < 32; i++)
170 if (regnum == (SPARC_F0_REGNUM + i) || regnum == -1)
171 regcache_collect (SPARC_F0_REGNUM + i, fpregs + (i * 4));
174 for (i = 0; i < 16; i++)
176 if (regnum == (SPARC64_F32_REGNUM + i) || regnum == -1)
177 regcache_collect (SPARC64_F32_REGNUM + i, fpregs + (32 * 4) + (i * 8));
180 if (regnum == SPARC64_FSR_REGNUM || regnum == -1)
181 regcache_collect (SPARC64_FSR_REGNUM, fpregs + (32 * 4) + (16 * 8));
186 fetch_core_registers (char *core_reg_sect, unsigned core_reg_size, int which,
191 case 0: /* Integer registers */
192 if (core_reg_size != sparc64fbsd_sizeof_struct_reg)
193 warning ("Wrong size register set in core file.");
195 sparc64fbsd_supply_reg (core_reg_sect, -1);
198 case 2: /* Floating pointer registers */
199 if (core_reg_size != sparc64fbsd_sizeof_struct_fpreg)
200 warning ("Wrong size FP register set in core file.");
202 sparc64fbsd_supply_fpreg (core_reg_sect, -1);
206 /* Don't know what kind of register request this is; just ignore it. */
211 static struct core_fns sparc64fbsd_core_fns =
213 bfd_target_elf_flavour, /* core_flavour */
214 default_check_format, /* check_format */
215 default_core_sniffer, /* core_sniffer */
216 fetch_core_registers, /* core_read_registers */
222 sparc64fbsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
227 /* Provide a prototype to silence -Wmissing-prototypes. */
228 void _initialize_sparc64fbsd_tdep (void);
231 _initialize_sparc64fbsd_tdep (void)
233 gdbarch_register_osabi (bfd_arch_sparc, bfd_mach_sparc_v9,
234 GDB_OSABI_FREEBSD_ELF, sparc64fbsd_init_abi);
236 add_core_fns (&sparc64fbsd_core_fns);