4 * Copyright (c) 2003-2008 Fabrice Bellard
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, see <http://www.gnu.org/licenses/>.
20 #include "qemu/osdep.h"
22 #include "cpu_loop-common.h"
24 void cpu_loop(CPUSH4State *env)
26 CPUState *cs = CPU(sh_env_get_cpu(env));
28 target_siginfo_t info;
31 bool arch_interrupt = true;
34 trapnr = cpu_exec(cs);
36 process_queued_cpu_work(cs);
50 if (ret == -TARGET_ERESTARTSYS) {
52 } else if (ret != -TARGET_QEMU_ESIGRETURN) {
57 /* just indicate that signals should be handled asap */
60 info.si_signo = TARGET_SIGTRAP;
62 info.si_code = TARGET_TRAP_BRKPT;
63 queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
67 info.si_signo = TARGET_SIGSEGV;
69 info.si_code = TARGET_SEGV_MAPERR;
70 info._sifields._sigfault._addr = env->tea;
71 queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
74 cpu_exec_step_atomic(cs);
75 arch_interrupt = false;
78 fprintf(stderr, "Unhandled trap: 0x%x\n", trapnr);
79 cpu_dump_state(cs, stderr, fprintf, 0);
82 process_pending_signals (env);
84 /* Most of the traps imply an exception or interrupt, which
85 implies an REI instruction has been executed. Which means
86 that LDST (aka LOK_ADDR) should be cleared. But there are
87 a few exceptions for traps internal to QEMU. */
94 void target_cpu_copy_regs(CPUArchState *env, struct target_pt_regs *regs)
98 for(i = 0; i < 16; i++) {
99 env->gregs[i] = regs->regs[i];