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/*
* LM32 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 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 "qemu-common.h"
#include "cpu.h"
#include "exec/gdbstub.h"
#include "hw/lm32/lm32_pic.h"
int lm32_cpu_gdb_read_register(CPUState *cs, uint8_t *mem_buf, int n)
{
LM32CPU *cpu = LM32_CPU(cs);
CPULM32State *env = &cpu->env;
if (n < 32) {
return gdb_get_reg32(mem_buf, env->regs[n]);
} else {
switch (n) {
case 32:
return gdb_get_reg32(mem_buf, env->pc);
/* FIXME: put in right exception ID */
case 33:
return gdb_get_reg32(mem_buf, 0);
case 34:
return gdb_get_reg32(mem_buf, env->eba);
case 35:
return gdb_get_reg32(mem_buf, env->deba);
case 36:
return gdb_get_reg32(mem_buf, env->ie);
case 37:
return gdb_get_reg32(mem_buf, lm32_pic_get_im(env->pic_state));
case 38:
return gdb_get_reg32(mem_buf, lm32_pic_get_ip(env->pic_state));
}
}
return 0;
}
int lm32_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n)
{
LM32CPU *cpu = LM32_CPU(cs);
CPUClass *cc = CPU_GET_CLASS(cs);
CPULM32State *env = &cpu->env;
uint32_t tmp;
if (n > cc->gdb_num_core_regs) {
return 0;
}
tmp = ldl_p(mem_buf);
if (n < 32) {
env->regs[n] = tmp;
} else {
switch (n) {
case 32:
env->pc = tmp;
break;
case 34:
env->eba = tmp;
break;
case 35:
env->deba = tmp;
break;
case 36:
env->ie = tmp;
break;
case 37:
lm32_pic_set_im(env->pic_state, tmp);
break;
case 38:
lm32_pic_set_ip(env->pic_state, tmp);
break;
}
}
return 4;
}
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