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20#include "qemu/osdep.h"
21#include "qemu.h"
22#include "cpu_loop-common.h"
23
24void cpu_loop(CPUCRISState *env)
25{
26 CPUState *cs = CPU(cris_env_get_cpu(env));
27 int trapnr, ret;
28 target_siginfo_t info;
29
30 while (1) {
31 cpu_exec_start(cs);
32 trapnr = cpu_exec(cs);
33 cpu_exec_end(cs);
34 process_queued_cpu_work(cs);
35
36 switch (trapnr) {
37 case 0xaa:
38 {
39 info.si_signo = TARGET_SIGSEGV;
40 info.si_errno = 0;
41
42 info.si_code = TARGET_SEGV_MAPERR;
43 info._sifields._sigfault._addr = env->pregs[PR_EDA];
44 queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
45 }
46 break;
47 case EXCP_INTERRUPT:
48
49 break;
50 case EXCP_BREAK:
51 ret = do_syscall(env,
52 env->regs[9],
53 env->regs[10],
54 env->regs[11],
55 env->regs[12],
56 env->regs[13],
57 env->pregs[7],
58 env->pregs[11],
59 0, 0);
60 if (ret == -TARGET_ERESTARTSYS) {
61 env->pc -= 2;
62 } else if (ret != -TARGET_QEMU_ESIGRETURN) {
63 env->regs[10] = ret;
64 }
65 break;
66 case EXCP_DEBUG:
67 {
68 int sig;
69
70 sig = gdb_handlesig(cs, TARGET_SIGTRAP);
71 if (sig)
72 {
73 info.si_signo = sig;
74 info.si_errno = 0;
75 info.si_code = TARGET_TRAP_BRKPT;
76 queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
77 }
78 }
79 break;
80 case EXCP_ATOMIC:
81 cpu_exec_step_atomic(cs);
82 break;
83 default:
84 fprintf(stderr, "Unhandled trap: 0x%x\n", trapnr);
85 cpu_dump_state(cs, stderr, fprintf, 0);
86 exit(EXIT_FAILURE);
87 }
88 process_pending_signals (env);
89 }
90}
91
92void target_cpu_copy_regs(CPUArchState *env, struct target_pt_regs *regs)
93{
94 CPUState *cpu = ENV_GET_CPU(env);
95 TaskState *ts = cpu->opaque;
96 struct image_info *info = ts->info;
97
98 env->regs[0] = regs->r0;
99 env->regs[1] = regs->r1;
100 env->regs[2] = regs->r2;
101 env->regs[3] = regs->r3;
102 env->regs[4] = regs->r4;
103 env->regs[5] = regs->r5;
104 env->regs[6] = regs->r6;
105 env->regs[7] = regs->r7;
106 env->regs[8] = regs->r8;
107 env->regs[9] = regs->r9;
108 env->regs[10] = regs->r10;
109 env->regs[11] = regs->r11;
110 env->regs[12] = regs->r12;
111 env->regs[13] = regs->r13;
112 env->regs[14] = info->start_stack;
113 env->regs[15] = regs->acr;
114 env->pc = regs->erp;
115}
116