2 * MicroBlaze gdb server stub
4 * Copyright (c) 2003-2005 Fabrice Bellard
5 * Copyright (c) 2013 SUSE LINUX Products GmbH
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * This library 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 GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
20 #include "qemu/osdep.h"
22 #include "exec/gdbstub.h"
25 * GDB expects SREGs in the following order:
26 * PC, MSR, EAR, ESR, FSR, BTR, EDR, PID, ZPR, TLBX, TLBSX, TLBLO, TLBHI.
28 * PID, ZPR, TLBx, TLBsx, TLBLO, and TLBHI aren't modeled, so we don't
29 * map them to anything and return a value of 0 instead.
46 int mb_cpu_gdb_read_register(CPUState *cs, GByteArray *mem_buf, int n)
48 MicroBlazeCPU *cpu = MICROBLAZE_CPU(cs);
49 CPUClass *cc = CPU_GET_CLASS(cs);
50 CPUMBState *env = &cpu->env;
53 if (n > cc->gdb_num_core_regs) {
65 val = mb_cpu_read_msr(env);
79 case GDB_PVR0 ... GDB_PVR11:
80 /* PVR12 is intentionally skipped */
81 val = cpu->cfg.pvr_regs[n - GDB_PVR0];
93 /* Other SRegs aren't modeled, so report a value of 0 */
97 return gdb_get_reg32(mem_buf, val);
100 int mb_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n)
102 MicroBlazeCPU *cpu = MICROBLAZE_CPU(cs);
103 CPUClass *cc = CPU_GET_CLASS(cs);
104 CPUMBState *env = &cpu->env;
107 if (n > cc->gdb_num_core_regs) {
111 tmp = ldl_p(mem_buf);
121 mb_cpu_write_msr(env, tmp);