linux-user: move cris cpu loop to cris directory

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>

1 files changed, 89 insertions, 0 deletions

diff --git a/linux-user/cris/cpu_loop.c b/linux-user/cris/cpu_loop.c
index b7700a5561..1c5eca9f83 100644
--- a/linux-user/cris/cpu_loop.c
+++ b/linux-user/cris/cpu_loop.c
@@ -21,6 +21,95 @@
 #include "qemu.h"
 #include "cpu_loop-common.h"
 
+void cpu_loop(CPUCRISState *env)
+{
+    CPUState *cs = CPU(cris_env_get_cpu(env));
+    int trapnr, ret;
+    target_siginfo_t info;
+    
+    while (1) {
+        cpu_exec_start(cs);
+        trapnr = cpu_exec(cs);
+        cpu_exec_end(cs);
+        process_queued_cpu_work(cs);
+
+        switch (trapnr) {
+        case 0xaa:
+            {
+                info.si_signo = TARGET_SIGSEGV;
+                info.si_errno = 0;
+                /* XXX: check env->error_code */
+                info.si_code = TARGET_SEGV_MAPERR;
+                info._sifields._sigfault._addr = env->pregs[PR_EDA];
+                queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
+            }
+            break;
+        case EXCP_INTERRUPT:
+          /* just indicate that signals should be handled asap */
+          break;
+        case EXCP_BREAK:
+            ret = do_syscall(env, 
+                             env->regs[9], 
+                             env->regs[10], 
+                             env->regs[11], 
+                             env->regs[12], 
+                             env->regs[13], 
+                             env->pregs[7], 
+                             env->pregs[11],
+                             0, 0);
+            if (ret == -TARGET_ERESTARTSYS) {
+                env->pc -= 2;
+            } else if (ret != -TARGET_QEMU_ESIGRETURN) {
+                env->regs[10] = ret;
+            }
+            break;
+        case EXCP_DEBUG:
+            {
+                int sig;
+
+                sig = gdb_handlesig(cs, TARGET_SIGTRAP);
+                if (sig)
+                  {
+                    info.si_signo = sig;
+                    info.si_errno = 0;
+                    info.si_code = TARGET_TRAP_BRKPT;
+                    queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
+                  }
+            }
+            break;
+        case EXCP_ATOMIC:
+            cpu_exec_step_atomic(cs);
+            break;
+        default:
+            printf ("Unhandled trap: 0x%x\n", trapnr);
+            cpu_dump_state(cs, stderr, fprintf, 0);
+            exit(EXIT_FAILURE);
+        }
+        process_pending_signals (env);
+    }
+}
+
 void target_cpu_copy_regs(CPUArchState *env, struct target_pt_regs *regs)
 {
+    CPUState *cpu = ENV_GET_CPU(env);
+    TaskState *ts = cpu->opaque;
+    struct image_info *info = ts->info;
+
+    env->regs[0] = regs->r0;
+    env->regs[1] = regs->r1;
+    env->regs[2] = regs->r2;
+    env->regs[3] = regs->r3;
+    env->regs[4] = regs->r4;
+    env->regs[5] = regs->r5;
+    env->regs[6] = regs->r6;
+    env->regs[7] = regs->r7;
+    env->regs[8] = regs->r8;
+    env->regs[9] = regs->r9;
+    env->regs[10] = regs->r10;
+    env->regs[11] = regs->r11;
+    env->regs[12] = regs->r12;
+    env->regs[13] = regs->r13;
+    env->regs[14] = info->start_stack;
+    env->regs[15] = regs->acr;
+    env->pc = regs->erp;
 }