mirror of
https://github.com/xemu-project/xemu.git
synced 2024-12-11 05:23:58 +00:00
d20711bd6d
We used to make a distinction between 'float64'/'float32' types and the 'uint64_t'/'uint32_t' types, requiring special conversion operations to go between them. We've now dropped this distinction as unnecessary, and the 'float*' types remain primarily for documentation purposes when used in places like the function prototypes of TCG helper functions. This means that there's no need for a special gdb_get_float32() function to write a float32 value to the GDB protocol buffer; we can just use gdb_get_reg32(). Similarly, for reading a value out of the GDB buffer into a float32 we can use ldl_p() and need not use ldfl_p(). Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20210208113428.7181-2-peter.maydell@linaro.org> Message-Id: <20210211122750.22645-11-alex.bennee@linaro.org>
145 lines
4.0 KiB
C
145 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) {
|
|
return gdb_get_reg32(mem_buf, env->fregs[n - 9]);
|
|
}
|
|
return gdb_get_reg32(mem_buf, env->fregs[n - 25]);
|
|
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] = ldl_p(mem_buf);
|
|
} else {
|
|
env->fregs[n - 25] = ldl_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;
|
|
}
|