forked from mirror/qemu
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
131 lines
3.1 KiB
C
131 lines
3.1 KiB
C
/*
|
|
* CRIS gdb server stub
|
|
*
|
|
* Copyright (c) 2003-2005 Fabrice Bellard
|
|
* Copyright (c) 2013 SUSE LINUX Products GmbH
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
#include "qemu/osdep.h"
|
|
#include "cpu.h"
|
|
#include "exec/gdbstub.h"
|
|
|
|
int crisv10_cpu_gdb_read_register(CPUState *cs, GByteArray *mem_buf, int n)
|
|
{
|
|
CRISCPU *cpu = CRIS_CPU(cs);
|
|
CPUCRISState *env = &cpu->env;
|
|
|
|
if (n < 15) {
|
|
return gdb_get_reg32(mem_buf, env->regs[n]);
|
|
}
|
|
|
|
if (n == 15) {
|
|
return gdb_get_reg32(mem_buf, env->pc);
|
|
}
|
|
|
|
if (n < 32) {
|
|
switch (n) {
|
|
case 16:
|
|
return gdb_get_reg8(mem_buf, env->pregs[n - 16]);
|
|
case 17:
|
|
return gdb_get_reg8(mem_buf, env->pregs[n - 16]);
|
|
case 20:
|
|
case 21:
|
|
return gdb_get_reg16(mem_buf, env->pregs[n - 16]);
|
|
default:
|
|
if (n >= 23) {
|
|
return gdb_get_reg32(mem_buf, env->pregs[n - 16]);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int cris_cpu_gdb_read_register(CPUState *cs, GByteArray *mem_buf, int n)
|
|
{
|
|
CRISCPU *cpu = CRIS_CPU(cs);
|
|
CPUCRISState *env = &cpu->env;
|
|
uint8_t srs;
|
|
|
|
srs = env->pregs[PR_SRS];
|
|
if (n < 16) {
|
|
return gdb_get_reg32(mem_buf, env->regs[n]);
|
|
}
|
|
|
|
if (n >= 21 && n < 32) {
|
|
return gdb_get_reg32(mem_buf, env->pregs[n - 16]);
|
|
}
|
|
if (n >= 33 && n < 49) {
|
|
return gdb_get_reg32(mem_buf, env->sregs[srs][n - 33]);
|
|
}
|
|
switch (n) {
|
|
case 16:
|
|
return gdb_get_reg8(mem_buf, env->pregs[0]);
|
|
case 17:
|
|
return gdb_get_reg8(mem_buf, env->pregs[1]);
|
|
case 18:
|
|
return gdb_get_reg32(mem_buf, env->pregs[2]);
|
|
case 19:
|
|
return gdb_get_reg8(mem_buf, srs);
|
|
case 20:
|
|
return gdb_get_reg16(mem_buf, env->pregs[4]);
|
|
case 32:
|
|
return gdb_get_reg32(mem_buf, env->pc);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int cris_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n)
|
|
{
|
|
CRISCPU *cpu = CRIS_CPU(cs);
|
|
CPUCRISState *env = &cpu->env;
|
|
uint32_t tmp;
|
|
|
|
if (n > 49) {
|
|
return 0;
|
|
}
|
|
|
|
tmp = ldl_p(mem_buf);
|
|
|
|
if (n < 16) {
|
|
env->regs[n] = tmp;
|
|
}
|
|
|
|
if (n >= 21 && n < 32) {
|
|
env->pregs[n - 16] = tmp;
|
|
}
|
|
|
|
/* FIXME: Should support function regs be writable? */
|
|
switch (n) {
|
|
case 16:
|
|
return 1;
|
|
case 17:
|
|
return 1;
|
|
case 18:
|
|
env->pregs[PR_PID] = tmp;
|
|
break;
|
|
case 19:
|
|
return 1;
|
|
case 20:
|
|
return 2;
|
|
case 32:
|
|
env->pc = tmp;
|
|
break;
|
|
}
|
|
|
|
return 4;
|
|
}
|