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"
21 #include "qemu-common.h"
23 #include "user-internals.h"
24 #include "cpu_loop-common.h"
25 #include "signal-common.h"
27 void cpu_loop(CPUSH4State
*env
)
29 CPUState
*cs
= env_cpu(env
);
31 target_siginfo_t info
;
34 bool arch_interrupt
= true;
37 trapnr
= cpu_exec(cs
);
39 process_queued_cpu_work(cs
);
53 if (ret
== -QEMU_ERESTARTSYS
) {
55 } else if (ret
!= -QEMU_ESIGRETURN
) {
60 /* just indicate that signals should be handled asap */
63 info
.si_signo
= TARGET_SIGTRAP
;
65 info
.si_code
= TARGET_TRAP_BRKPT
;
66 queue_signal(env
, info
.si_signo
, QEMU_SI_FAULT
, &info
);
69 cpu_exec_step_atomic(cs
);
70 arch_interrupt
= false;
73 fprintf(stderr
, "Unhandled trap: 0x%x\n", trapnr
);
74 cpu_dump_state(cs
, stderr
, 0);
77 process_pending_signals (env
);
79 /* Most of the traps imply an exception or interrupt, which
80 implies an REI instruction has been executed. Which means
81 that LDST (aka LOK_ADDR) should be cleared. But there are
82 a few exceptions for traps internal to QEMU. */
89 void target_cpu_copy_regs(CPUArchState
*env
, struct target_pt_regs
*regs
)
93 for(i
= 0; i
< 16; i
++) {
94 env
->gregs
[i
] = regs
->regs
[i
];