8dd14a9b79
No code change, only move code from main.c to cris/cpu_loop.c. Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20180411185651.21351-12-laurent@vivier.eu>
116 lines
3.6 KiB
C
116 lines
3.6 KiB
C
/*
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* qemu user cpu loop
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*
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* Copyright (c) 2003-2008 Fabrice Bellard
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include "qemu/osdep.h"
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#include "qemu.h"
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#include "cpu_loop-common.h"
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void cpu_loop(CPUCRISState *env)
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{
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CPUState *cs = CPU(cris_env_get_cpu(env));
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int trapnr, ret;
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target_siginfo_t info;
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while (1) {
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cpu_exec_start(cs);
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trapnr = cpu_exec(cs);
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cpu_exec_end(cs);
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process_queued_cpu_work(cs);
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switch (trapnr) {
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case 0xaa:
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{
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info.si_signo = TARGET_SIGSEGV;
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info.si_errno = 0;
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/* XXX: check env->error_code */
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info.si_code = TARGET_SEGV_MAPERR;
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info._sifields._sigfault._addr = env->pregs[PR_EDA];
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queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
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}
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break;
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case EXCP_INTERRUPT:
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/* just indicate that signals should be handled asap */
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break;
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case EXCP_BREAK:
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ret = do_syscall(env,
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env->regs[9],
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env->regs[10],
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env->regs[11],
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env->regs[12],
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env->regs[13],
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env->pregs[7],
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env->pregs[11],
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0, 0);
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if (ret == -TARGET_ERESTARTSYS) {
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env->pc -= 2;
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} else if (ret != -TARGET_QEMU_ESIGRETURN) {
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env->regs[10] = ret;
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}
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break;
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case EXCP_DEBUG:
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{
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int sig;
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sig = gdb_handlesig(cs, TARGET_SIGTRAP);
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if (sig)
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{
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info.si_signo = sig;
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info.si_errno = 0;
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info.si_code = TARGET_TRAP_BRKPT;
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queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
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}
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}
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break;
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case EXCP_ATOMIC:
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cpu_exec_step_atomic(cs);
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break;
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default:
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printf ("Unhandled trap: 0x%x\n", trapnr);
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cpu_dump_state(cs, stderr, fprintf, 0);
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exit(EXIT_FAILURE);
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}
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process_pending_signals (env);
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}
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}
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void target_cpu_copy_regs(CPUArchState *env, struct target_pt_regs *regs)
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{
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CPUState *cpu = ENV_GET_CPU(env);
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TaskState *ts = cpu->opaque;
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struct image_info *info = ts->info;
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env->regs[0] = regs->r0;
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env->regs[1] = regs->r1;
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env->regs[2] = regs->r2;
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env->regs[3] = regs->r3;
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env->regs[4] = regs->r4;
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env->regs[5] = regs->r5;
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env->regs[6] = regs->r6;
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env->regs[7] = regs->r7;
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env->regs[8] = regs->r8;
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env->regs[9] = regs->r9;
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env->regs[10] = regs->r10;
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env->regs[11] = regs->r11;
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env->regs[12] = regs->r12;
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env->regs[13] = regs->r13;
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env->regs[14] = info->start_stack;
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env->regs[15] = regs->acr;
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env->pc = regs->erp;
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}
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