]>
Commit | Line | Data |
---|---|---|
cd71c089 LV |
1 | /* |
2 | * qemu user cpu loop | |
3 | * | |
4 | * Copyright (c) 2003-2008 Fabrice Bellard | |
5 | * | |
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. | |
10 | * | |
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. | |
15 | * | |
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/>. | |
18 | */ | |
19 | ||
20 | #include "qemu/osdep.h" | |
21 | #include "qemu.h" | |
3b249d26 | 22 | #include "user-internals.h" |
cd71c089 | 23 | #include "cpu_loop-common.h" |
2113aed6 | 24 | #include "signal-common.h" |
cd71c089 | 25 | |
8dd14a9b LV |
26 | void cpu_loop(CPUCRISState *env) |
27 | { | |
dbefca23 | 28 | CPUState *cs = env_cpu(env); |
8dd14a9b | 29 | int trapnr, ret; |
32e32186 | 30 | |
8dd14a9b LV |
31 | while (1) { |
32 | cpu_exec_start(cs); | |
33 | trapnr = cpu_exec(cs); | |
34 | cpu_exec_end(cs); | |
35 | process_queued_cpu_work(cs); | |
36 | ||
37 | switch (trapnr) { | |
8dd14a9b | 38 | case EXCP_INTERRUPT: |
32e32186 RH |
39 | /* just indicate that signals should be handled asap */ |
40 | break; | |
8dd14a9b LV |
41 | case EXCP_BREAK: |
42 | ret = do_syscall(env, | |
43 | env->regs[9], | |
44 | env->regs[10], | |
45 | env->regs[11], | |
46 | env->regs[12], | |
47 | env->regs[13], | |
48 | env->pregs[7], | |
49 | env->pregs[11], | |
50 | 0, 0); | |
af254a27 | 51 | if (ret == -QEMU_ERESTARTSYS) { |
8dd14a9b | 52 | env->pc -= 2; |
57a0c938 | 53 | } else if (ret != -QEMU_ESIGRETURN) { |
8dd14a9b LV |
54 | env->regs[10] = ret; |
55 | } | |
56 | break; | |
57 | case EXCP_DEBUG: | |
32e32186 | 58 | force_sig_fault(TARGET_SIGTRAP, TARGET_TRAP_BRKPT, env->pc); |
8dd14a9b LV |
59 | break; |
60 | case EXCP_ATOMIC: | |
61 | cpu_exec_step_atomic(cs); | |
62 | break; | |
63 | default: | |
84ca4fa9 | 64 | fprintf(stderr, "Unhandled trap: 0x%x\n", trapnr); |
90c84c56 | 65 | cpu_dump_state(cs, stderr, 0); |
8dd14a9b LV |
66 | exit(EXIT_FAILURE); |
67 | } | |
68 | process_pending_signals (env); | |
69 | } | |
70 | } | |
71 | ||
cd71c089 LV |
72 | void target_cpu_copy_regs(CPUArchState *env, struct target_pt_regs *regs) |
73 | { | |
29a0af61 | 74 | CPUState *cpu = env_cpu(env); |
8dd14a9b LV |
75 | TaskState *ts = cpu->opaque; |
76 | struct image_info *info = ts->info; | |
77 | ||
78 | env->regs[0] = regs->r0; | |
79 | env->regs[1] = regs->r1; | |
80 | env->regs[2] = regs->r2; | |
81 | env->regs[3] = regs->r3; | |
82 | env->regs[4] = regs->r4; | |
83 | env->regs[5] = regs->r5; | |
84 | env->regs[6] = regs->r6; | |
85 | env->regs[7] = regs->r7; | |
86 | env->regs[8] = regs->r8; | |
87 | env->regs[9] = regs->r9; | |
88 | env->regs[10] = regs->r10; | |
89 | env->regs[11] = regs->r11; | |
90 | env->regs[12] = regs->r12; | |
91 | env->regs[13] = regs->r13; | |
92 | env->regs[14] = info->start_stack; | |
93 | env->regs[15] = regs->acr; | |
94 | env->pc = regs->erp; | |
cd71c089 | 95 | } |