1 /* Functions specific to running gdb native on HPPA running Linux.
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. */
24 #include "gdb_string.h"
26 #include <sys/procfs.h>
28 #include <asm/offsets.h>
30 #include "hppa-tdep.h"
32 /* Prototypes for supply_gregset etc. */
35 /* These must match the order of the register names.
37 Some sort of lookup table is needed because the offsets associated
38 with the registers are all over the board. */
40 static const int u_offsets[] =
42 /* general registers */
111 /* Floating point regs. */
122 PT_FR10, PT_FR10 + 4,
123 PT_FR11, PT_FR11 + 4,
124 PT_FR12, PT_FR12 + 4,
125 PT_FR13, PT_FR13 + 4,
126 PT_FR14, PT_FR14 + 4,
127 PT_FR15, PT_FR15 + 4,
128 PT_FR16, PT_FR16 + 4,
129 PT_FR17, PT_FR17 + 4,
130 PT_FR18, PT_FR18 + 4,
131 PT_FR19, PT_FR19 + 4,
132 PT_FR20, PT_FR20 + 4,
133 PT_FR21, PT_FR21 + 4,
134 PT_FR22, PT_FR22 + 4,
135 PT_FR23, PT_FR23 + 4,
136 PT_FR24, PT_FR24 + 4,
137 PT_FR25, PT_FR25 + 4,
138 PT_FR26, PT_FR26 + 4,
139 PT_FR27, PT_FR27 + 4,
140 PT_FR28, PT_FR28 + 4,
141 PT_FR29, PT_FR29 + 4,
142 PT_FR30, PT_FR30 + 4,
143 PT_FR31, PT_FR31 + 4,
147 register_addr (int regno, CORE_ADDR blockend)
151 if ((unsigned) regno >= NUM_REGS)
152 error ("Invalid register number %d.", regno);
154 if (u_offsets[regno] == -1)
158 addr = (CORE_ADDR) u_offsets[regno];
165 * Registers saved in a coredump:
170 * sar, iir, isr, ior, ipsw
175 #define GR_REGNUM(_n) (HPPA_R0_REGNUM+_n)
176 #define TR_REGNUM(_n) (HPPA_TR0_REGNUM+_n)
177 static const int greg_map[] =
179 GR_REGNUM(0), GR_REGNUM(1), GR_REGNUM(2), GR_REGNUM(3),
180 GR_REGNUM(4), GR_REGNUM(5), GR_REGNUM(6), GR_REGNUM(7),
181 GR_REGNUM(8), GR_REGNUM(9), GR_REGNUM(10), GR_REGNUM(11),
182 GR_REGNUM(12), GR_REGNUM(13), GR_REGNUM(14), GR_REGNUM(15),
183 GR_REGNUM(16), GR_REGNUM(17), GR_REGNUM(18), GR_REGNUM(19),
184 GR_REGNUM(20), GR_REGNUM(21), GR_REGNUM(22), GR_REGNUM(23),
185 GR_REGNUM(24), GR_REGNUM(25), GR_REGNUM(26), GR_REGNUM(27),
186 GR_REGNUM(28), GR_REGNUM(29), GR_REGNUM(30), GR_REGNUM(31),
188 HPPA_SR4_REGNUM+1, HPPA_SR4_REGNUM+2, HPPA_SR4_REGNUM+3, HPPA_SR4_REGNUM+4,
189 HPPA_SR4_REGNUM, HPPA_SR4_REGNUM+5, HPPA_SR4_REGNUM+6, HPPA_SR4_REGNUM+7,
191 HPPA_PCOQ_HEAD_REGNUM, HPPA_PCOQ_TAIL_REGNUM,
192 HPPA_PCSQ_HEAD_REGNUM, HPPA_PCSQ_TAIL_REGNUM,
194 HPPA_SAR_REGNUM, HPPA_IIR_REGNUM, HPPA_ISR_REGNUM, HPPA_IOR_REGNUM,
195 HPPA_IPSW_REGNUM, HPPA_RCR_REGNUM,
197 TR_REGNUM(0), TR_REGNUM(1), TR_REGNUM(2), TR_REGNUM(3),
198 TR_REGNUM(4), TR_REGNUM(5), TR_REGNUM(6), TR_REGNUM(7),
200 HPPA_PID0_REGNUM, HPPA_PID1_REGNUM, HPPA_PID2_REGNUM, HPPA_PID3_REGNUM,
201 HPPA_CCR_REGNUM, HPPA_EIEM_REGNUM,
205 supply_gregset (gdb_gregset_t *gregsetp)
208 greg_t *regp = (elf_greg_t *) gregsetp;
210 for (i = 0; i < sizeof (greg_map) / sizeof (greg_map[0]); i++, regp++)
212 int regno = greg_map[i];
213 int size = register_size (current_gdbarch, regno);
214 /* When running a 64 bit kernel, a greg_t may be larger than the
215 actual register, so just pick off the LS bits of big-endian word. */
216 supply_register (regno, ((char *) (regp + 1)) - size);
221 fill_gregset (gdb_gregset_t *gregsetp, int regno)
224 greg_t *regp = (greg_t *) gregsetp;
226 memset (gregsetp, 0, sizeof (*gregsetp));
227 for (i = 0; i < sizeof (greg_map) / sizeof (greg_map[0]); i++, regp++)
229 int regi = greg_map[i];
231 if (regno == -1 || regi == regno)
233 int rawsize = register_size (current_gdbarch, regi);
234 regcache_collect (regi, ((char *) (regp + 1)) - rawsize);
239 /* Given a pointer to a floating point register set in /proc format
240 (fpregset_t *), unpack the register contents and supply them as gdb's
241 idea of the current floating point register values. */
244 supply_fpregset (gdb_fpregset_t *fpregsetp)
249 for (regi = 0; regi <= 31; regi++)
251 from = (char *) &((*fpregsetp)[regi]);
252 supply_register (2*regi + HPPA_FP0_REGNUM, from);
253 supply_register (2*regi + HPPA_FP0_REGNUM + 1, from + 4);
257 /* Given a pointer to a floating point register set in /proc format
258 (fpregset_t *), update the register specified by REGNO from gdb's idea
259 of the current floating point register set. If REGNO is -1, update
263 fill_fpregset (gdb_fpregset_t *fpregsetp, int regno)
267 for (i = 0; i < NUM_REGS; i++)
269 if (regno == -1 || regno == i)
271 /* Gross. fpregset_t is double, registers[x] has single
273 char *to = (char *) &((*fpregsetp)[(i - HPPA_FP0_REGNUM) / 2]);
274 if ((i - HPPA_FP0_REGNUM) & 1)
276 regcache_collect (i, to);