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/*
* HPPA gdb server stub
*
* Copyright (c) 2016 Richard Henderson <rth@twiddle.net>
*
* 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 "gdbstub/helpers.h"
/*
* GDB 15 only supports PA1.0 via the remote protocol, and ignores
* any provided xml. Which means that any attempt to provide more
* data results in "Remote 'g' packet reply is too long".
*/
int hppa_cpu_gdb_read_register(CPUState *cs, GByteArray *mem_buf, int n)
{
CPUHPPAState *env = cpu_env(cs);
uint32_t val;
switch (n) {
case 0:
val = cpu_hppa_get_psw(env);
break;
case 1 ... 31:
val = env->gr[n];
break;
case 32:
val = env->cr[CR_SAR];
break;
case 33:
val = env->iaoq_f;
break;
case 34:
val = env->iasq_f >> 32;
break;
case 35:
val = env->iaoq_b;
break;
case 36:
val = env->iasq_b >> 32;
break;
case 37:
val = env->cr[CR_EIEM];
break;
case 38:
val = env->cr[CR_IIR];
break;
case 39:
val = env->cr[CR_ISR];
break;
case 40:
val = env->cr[CR_IOR];
break;
case 41:
val = env->cr[CR_IPSW];
break;
case 43:
val = env->sr[4] >> 32;
break;
case 44:
val = env->sr[0] >> 32;
break;
case 45:
val = env->sr[1] >> 32;
break;
case 46:
val = env->sr[2] >> 32;
break;
case 47:
val = env->sr[3] >> 32;
break;
case 48:
val = env->sr[5] >> 32;
break;
case 49:
val = env->sr[6] >> 32;
break;
case 50:
val = env->sr[7] >> 32;
break;
case 51:
val = env->cr[CR_RC];
break;
case 52:
val = env->cr[CR_PID1];
break;
case 53:
val = env->cr[CR_PID2];
break;
case 54:
val = env->cr[CR_SCRCCR];
break;
case 55:
val = env->cr[CR_PID3];
break;
case 56:
val = env->cr[CR_PID4];
break;
case 57:
val = env->cr[24];
break;
case 58:
val = env->cr[25];
break;
case 59:
val = env->cr[26];
break;
case 60:
val = env->cr[27];
break;
case 61:
val = env->cr[28];
break;
case 62:
val = env->cr[29];
break;
case 63:
val = env->cr[30];
break;
case 64 ... 127:
val = extract64(env->fr[(n - 64) / 2], (n & 1 ? 0 : 32), 32);
break;
default:
if (n < 128) {
val = 0;
} else {
return 0;
}
break;
}
return gdb_get_reg32(mem_buf, val);
}
int hppa_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n)
{
CPUHPPAState *env = cpu_env(cs);
uint32_t val = ldl_p(mem_buf);
switch (n) {
case 0:
cpu_hppa_put_psw(env, val);
break;
case 1 ... 31:
env->gr[n] = val;
break;
case 32:
env->cr[CR_SAR] = val & (hppa_is_pa20(env) ? 63 : 31);
break;
case 33:
#ifdef CONFIG_USER_ONLY
val |= PRIV_USER;
#endif
env->iaoq_f = val;
break;
case 34:
env->iasq_f = (uint64_t)val << 32;
break;
case 35:
#ifdef CONFIG_USER_ONLY
val |= PRIV_USER;
#endif
env->iaoq_b = val;
break;
case 36:
env->iasq_b = (uint64_t)val << 32;
break;
case 37:
env->cr[CR_EIEM] = val;
break;
case 38:
env->cr[CR_IIR] = val;
break;
case 39:
env->cr[CR_ISR] = val;
break;
case 40:
env->cr[CR_IOR] = val;
break;
case 41:
env->cr[CR_IPSW] = val;
break;
case 43:
env->sr[4] = (uint64_t)val << 32;
break;
case 44:
env->sr[0] = (uint64_t)val << 32;
break;
case 45:
env->sr[1] = (uint64_t)val << 32;
break;
case 46:
env->sr[2] = (uint64_t)val << 32;
break;
case 47:
env->sr[3] = (uint64_t)val << 32;
break;
case 48:
env->sr[5] = (uint64_t)val << 32;
break;
case 49:
env->sr[6] = (uint64_t)val << 32;
break;
case 50:
env->sr[7] = (uint64_t)val << 32;
break;
case 51:
env->cr[CR_RC] = val;
break;
case 52:
env->cr[CR_PID1] = val;
cpu_hppa_change_prot_id(env);
break;
case 53:
env->cr[CR_PID2] = val;
cpu_hppa_change_prot_id(env);
break;
case 54:
env->cr[CR_SCRCCR] = val;
break;
case 55:
env->cr[CR_PID3] = val;
cpu_hppa_change_prot_id(env);
break;
case 56:
env->cr[CR_PID4] = val;
cpu_hppa_change_prot_id(env);
break;
case 57:
env->cr[24] = val;
break;
case 58:
env->cr[25] = val;
break;
case 59:
env->cr[26] = val;
break;
case 60:
env->cr[27] = val;
break;
case 61:
env->cr[28] = val;
break;
case 62:
env->cr[29] = val;
break;
case 63:
env->cr[30] = val;
break;
case 64:
env->fr[0] = deposit64(env->fr[0], 32, 32, val);
cpu_hppa_loaded_fr0(env);
break;
case 65 ... 127:
{
uint64_t *fr = &env->fr[(n - 64) / 2];
*fr = deposit64(*fr, (n & 1 ? 0 : 32), 32, val);
}
break;
default:
if (n >= 128) {
return 0;
}
break;
}
return 4;
}