linux-user: Drop unicore32 code

We dropped the unicore32-linux-user target in commit 5e2b40f7271cf9
in 2016. Nobody has made any attempt to fix the issues that
caused us to drop it, so remove the associated code.
(The system emulation parts of unicore32 remain.)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20180308144733.25615-2-peter.maydell@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

1 files changed, 1 insertions, 98 deletions

diff --git a/linux-user/main.c b/linux-user/main.c
index 7bc9bc7..b5d5e9c 100644
--- a/linux-user/main.c
+++ b/linux-user/main.c
@@ -884,95 +884,6 @@ void cpu_loop(CPUARMState *env)
 
 #endif
 
-#ifdef TARGET_UNICORE32
-
-void cpu_loop(CPUUniCore32State *env)
-{
-    CPUState *cs = CPU(uc32_env_get_cpu(env));
-    int trapnr;
-    unsigned int n, insn;
-    target_siginfo_t info;
-
-    for (;;) {
-        cpu_exec_start(cs);
-        trapnr = cpu_exec(cs);
-        cpu_exec_end(cs);
-        process_queued_cpu_work(cs);
-
-        switch (trapnr) {
-        case UC32_EXCP_PRIV:
-            {
-                /* system call */
-                get_user_u32(insn, env->regs[31] - 4);
-                n = insn & 0xffffff;
-
-                if (n >= UC32_SYSCALL_BASE) {
-                    /* linux syscall */
-                    n -= UC32_SYSCALL_BASE;
-                    if (n == UC32_SYSCALL_NR_set_tls) {
-                            cpu_set_tls(env, env->regs[0]);
-                            env->regs[0] = 0;
-                    } else {
-                        abi_long ret = do_syscall(env,
-                                                  n,
-                                                  env->regs[0],
-                                                  env->regs[1],
-                                                  env->regs[2],
-                                                  env->regs[3],
-                                                  env->regs[4],
-                                                  env->regs[5],
-                                                  0, 0);
-                        if (ret == -TARGET_ERESTARTSYS) {
-                            env->regs[31] -= 4;
-                        } else if (ret != -TARGET_QEMU_ESIGRETURN) {
-                            env->regs[0] = ret;
-                        }
-                    }
-                } else {
-                    goto error;
-                }
-            }
-            break;
-        case UC32_EXCP_DTRAP:
-        case UC32_EXCP_ITRAP:
-            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->cp0.c4_faultaddr;
-            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_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:
-            goto error;
-        }
-        process_pending_signals(env);
-    }
-
-error:
-    EXCP_DUMP(env, "qemu: unhandled CPU exception 0x%x - aborting\n", trapnr);
-    abort();
-}
-#endif
-
 #ifdef TARGET_SPARC
 #define SPARC64_STACK_BIAS 2047
 
@@ -4737,14 +4648,6 @@ int main(int argc, char **argv, char **envp)
         }
 #endif
     }
-#elif defined(TARGET_UNICORE32)
-    {
-        int i;
-        cpu_asr_write(env, regs->uregs[32], 0xffffffff);
-        for (i = 0; i < 32; i++) {
-            env->regs[i] = regs->uregs[i];
-        }
-    }
 #elif defined(TARGET_SPARC)
     {
         int i;
@@ -4974,7 +4877,7 @@ int main(int argc, char **argv, char **envp)
 #error unsupported target CPU
 #endif
 
-#if defined(TARGET_ARM) || defined(TARGET_M68K) || defined(TARGET_UNICORE32)
+#if defined(TARGET_ARM) || defined(TARGET_M68K)
     ts->stack_base = info->start_stack;
     ts->heap_base = info->brk;
     /* This will be filled in on the first SYS_HEAPINFO call.  */