dbefca236a
Cleanup in the boilerplate that each target must define. Replace cris_env_get_cpu with env_archcpu. The combination CPU(cris_env_get_cpu) should have used ENV_GET_CPU to begin; use env_cpu now. Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
108 lines
3.4 KiB
C
108 lines
3.4 KiB
C
/*
|
|
* qemu user cpu loop
|
|
*
|
|
* Copyright (c) 2003-2008 Fabrice Bellard
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program 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 General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include "qemu/osdep.h"
|
|
#include "qemu.h"
|
|
#include "cpu_loop-common.h"
|
|
|
|
void cpu_loop(CPUCRISState *env)
|
|
{
|
|
CPUState *cs = env_cpu(env);
|
|
int trapnr, ret;
|
|
target_siginfo_t info;
|
|
|
|
while (1) {
|
|
cpu_exec_start(cs);
|
|
trapnr = cpu_exec(cs);
|
|
cpu_exec_end(cs);
|
|
process_queued_cpu_work(cs);
|
|
|
|
switch (trapnr) {
|
|
case 0xaa:
|
|
{
|
|
info.si_signo = TARGET_SIGSEGV;
|
|
info.si_errno = 0;
|
|
/* XXX: check env->error_code */
|
|
info.si_code = TARGET_SEGV_MAPERR;
|
|
info._sifields._sigfault._addr = env->pregs[PR_EDA];
|
|
queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
|
|
}
|
|
break;
|
|
case EXCP_INTERRUPT:
|
|
/* just indicate that signals should be handled asap */
|
|
break;
|
|
case EXCP_BREAK:
|
|
ret = do_syscall(env,
|
|
env->regs[9],
|
|
env->regs[10],
|
|
env->regs[11],
|
|
env->regs[12],
|
|
env->regs[13],
|
|
env->pregs[7],
|
|
env->pregs[11],
|
|
0, 0);
|
|
if (ret == -TARGET_ERESTARTSYS) {
|
|
env->pc -= 2;
|
|
} else if (ret != -TARGET_QEMU_ESIGRETURN) {
|
|
env->regs[10] = ret;
|
|
}
|
|
break;
|
|
case EXCP_DEBUG:
|
|
info.si_signo = TARGET_SIGTRAP;
|
|
info.si_errno = 0;
|
|
info.si_code = TARGET_TRAP_BRKPT;
|
|
queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
|
|
break;
|
|
case EXCP_ATOMIC:
|
|
cpu_exec_step_atomic(cs);
|
|
break;
|
|
default:
|
|
fprintf(stderr, "Unhandled trap: 0x%x\n", trapnr);
|
|
cpu_dump_state(cs, stderr, 0);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
process_pending_signals (env);
|
|
}
|
|
}
|
|
|
|
void target_cpu_copy_regs(CPUArchState *env, struct target_pt_regs *regs)
|
|
{
|
|
CPUState *cpu = env_cpu(env);
|
|
TaskState *ts = cpu->opaque;
|
|
struct image_info *info = ts->info;
|
|
|
|
env->regs[0] = regs->r0;
|
|
env->regs[1] = regs->r1;
|
|
env->regs[2] = regs->r2;
|
|
env->regs[3] = regs->r3;
|
|
env->regs[4] = regs->r4;
|
|
env->regs[5] = regs->r5;
|
|
env->regs[6] = regs->r6;
|
|
env->regs[7] = regs->r7;
|
|
env->regs[8] = regs->r8;
|
|
env->regs[9] = regs->r9;
|
|
env->regs[10] = regs->r10;
|
|
env->regs[11] = regs->r11;
|
|
env->regs[12] = regs->r12;
|
|
env->regs[13] = regs->r13;
|
|
env->regs[14] = info->start_stack;
|
|
env->regs[15] = regs->acr;
|
|
env->pc = regs->erp;
|
|
}
|