a010bdbe71
Instead of passing a pointer to memory now just extend the GByteArray to all the read register helpers. They can then safely append their data through the normal way. We don't bother with this abstraction for write registers as we have already ensured the buffer being copied from is the correct size. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Acked-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Damien Hedde <damien.hedde@greensocs.com> Message-Id: <20200316172155.971-15-alex.bennee@linaro.org>
147 lines
4.0 KiB
C
147 lines
4.0 KiB
C
/*
|
|
* SuperH 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"
|
|
|
|
/* Hint: Use "set architecture sh4" in GDB to see fpu registers */
|
|
/* FIXME: We should use XML for this. */
|
|
|
|
int superh_cpu_gdb_read_register(CPUState *cs, GByteArray *mem_buf, int n)
|
|
{
|
|
SuperHCPU *cpu = SUPERH_CPU(cs);
|
|
CPUSH4State *env = &cpu->env;
|
|
|
|
switch (n) {
|
|
case 0 ... 7:
|
|
if ((env->sr & (1u << SR_MD)) && (env->sr & (1u << SR_RB))) {
|
|
return gdb_get_regl(mem_buf, env->gregs[n + 16]);
|
|
} else {
|
|
return gdb_get_regl(mem_buf, env->gregs[n]);
|
|
}
|
|
case 8 ... 15:
|
|
return gdb_get_regl(mem_buf, env->gregs[n]);
|
|
case 16:
|
|
return gdb_get_regl(mem_buf, env->pc);
|
|
case 17:
|
|
return gdb_get_regl(mem_buf, env->pr);
|
|
case 18:
|
|
return gdb_get_regl(mem_buf, env->gbr);
|
|
case 19:
|
|
return gdb_get_regl(mem_buf, env->vbr);
|
|
case 20:
|
|
return gdb_get_regl(mem_buf, env->mach);
|
|
case 21:
|
|
return gdb_get_regl(mem_buf, env->macl);
|
|
case 22:
|
|
return gdb_get_regl(mem_buf, cpu_read_sr(env));
|
|
case 23:
|
|
return gdb_get_regl(mem_buf, env->fpul);
|
|
case 24:
|
|
return gdb_get_regl(mem_buf, env->fpscr);
|
|
case 25 ... 40:
|
|
if (env->fpscr & FPSCR_FR) {
|
|
stfl_p(mem_buf, env->fregs[n - 9]);
|
|
} else {
|
|
stfl_p(mem_buf, env->fregs[n - 25]);
|
|
}
|
|
return 4;
|
|
case 41:
|
|
return gdb_get_regl(mem_buf, env->ssr);
|
|
case 42:
|
|
return gdb_get_regl(mem_buf, env->spc);
|
|
case 43 ... 50:
|
|
return gdb_get_regl(mem_buf, env->gregs[n - 43]);
|
|
case 51 ... 58:
|
|
return gdb_get_regl(mem_buf, env->gregs[n - (51 - 16)]);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int superh_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n)
|
|
{
|
|
SuperHCPU *cpu = SUPERH_CPU(cs);
|
|
CPUSH4State *env = &cpu->env;
|
|
|
|
switch (n) {
|
|
case 0 ... 7:
|
|
if ((env->sr & (1u << SR_MD)) && (env->sr & (1u << SR_RB))) {
|
|
env->gregs[n + 16] = ldl_p(mem_buf);
|
|
} else {
|
|
env->gregs[n] = ldl_p(mem_buf);
|
|
}
|
|
break;
|
|
case 8 ... 15:
|
|
env->gregs[n] = ldl_p(mem_buf);
|
|
break;
|
|
case 16:
|
|
env->pc = ldl_p(mem_buf);
|
|
break;
|
|
case 17:
|
|
env->pr = ldl_p(mem_buf);
|
|
break;
|
|
case 18:
|
|
env->gbr = ldl_p(mem_buf);
|
|
break;
|
|
case 19:
|
|
env->vbr = ldl_p(mem_buf);
|
|
break;
|
|
case 20:
|
|
env->mach = ldl_p(mem_buf);
|
|
break;
|
|
case 21:
|
|
env->macl = ldl_p(mem_buf);
|
|
break;
|
|
case 22:
|
|
cpu_write_sr(env, ldl_p(mem_buf));
|
|
break;
|
|
case 23:
|
|
env->fpul = ldl_p(mem_buf);
|
|
break;
|
|
case 24:
|
|
env->fpscr = ldl_p(mem_buf);
|
|
break;
|
|
case 25 ... 40:
|
|
if (env->fpscr & FPSCR_FR) {
|
|
env->fregs[n - 9] = ldfl_p(mem_buf);
|
|
} else {
|
|
env->fregs[n - 25] = ldfl_p(mem_buf);
|
|
}
|
|
break;
|
|
case 41:
|
|
env->ssr = ldl_p(mem_buf);
|
|
break;
|
|
case 42:
|
|
env->spc = ldl_p(mem_buf);
|
|
break;
|
|
case 43 ... 50:
|
|
env->gregs[n - 43] = ldl_p(mem_buf);
|
|
break;
|
|
case 51 ... 58:
|
|
env->gregs[n - (51 - 16)] = ldl_p(mem_buf);
|
|
break;
|
|
default:
|
|
return 0;
|
|
}
|
|
|
|
return 4;
|
|
}
|