target-arm: final conversion to AREG0 free mode

[qemu.git] / target-microblaze / op_helper.c

diff --git a/target-microblaze/op_helper.c b/target-microblaze/op_helper.c
index c7b2f97d96f1054a159e204a5747fc8c5f5529b5..3b1f07243ebc7a9d4b513ed15e2bff3fc13765aa 100644 (file)
--- a/target-microblaze/op_helper.c
+++ b/target-microblaze/op_helper.c
@@ -2,6 +2,7 @@
  *  Microblaze helper routines.
  *
  *  Copyright (c) 2009 Edgar E. Iglesias <[email protected]>.
+ *  Copyright (c) 2009-2012 PetaLogix Qld Pty Ltd.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
@@ -18,13 +19,16 @@
  */
 
 #include <assert.h>
-#include "exec.h"
+#include "cpu.h"
+#include "dyngen-exec.h"
 #include "helper.h"
 #include "host-utils.h"
 
 #define D(x)
 
 #if !defined(CONFIG_USER_ONLY)
+#include "softmmu_exec.h"
+
 #define MMUSUFFIX _mmu
 #define SHIFT 0
 #include "softmmu_template.h"
@@ -39,31 +43,28 @@
    NULL, it means that the function was called in C code (i.e. not
    from generated code or from helper.c) */
 /* XXX: fix it to restore all registers */
-void tlb_fill (target_ulong addr, int is_write, int mmu_idx, void *retaddr)
+void tlb_fill(CPUMBState *env1, target_ulong addr, int is_write, int mmu_idx,
+              uintptr_t retaddr)
 {
     TranslationBlock *tb;
-    CPUState *saved_env;
-    unsigned long pc;
+    CPUMBState *saved_env;
     int ret;
 
-    /* XXX: hack to restore env in all cases, even if not called from
-       generated code */
     saved_env = env;
-    env = cpu_single_env;
+    env = env1;
 
-    ret = cpu_mb_handle_mmu_fault(env, addr, is_write, mmu_idx, 1);
+    ret = cpu_mb_handle_mmu_fault(env, addr, is_write, mmu_idx);
     if (unlikely(ret)) {
         if (retaddr) {
             /* now we have a real cpu fault */
-            pc = (unsigned long)retaddr;
-            tb = tb_find_pc(pc);
+            tb = tb_find_pc(retaddr);
             if (tb) {
                 /* the PC is inside the translated code. It means that we have
                    a virtual CPU fault */
-                cpu_restore_state(tb, env, pc);
+                cpu_restore_state(tb, env, retaddr);
             }
         }
-        cpu_loop_exit();
+        cpu_loop_exit(env);
     }
     env = saved_env;
 }
@@ -107,7 +108,7 @@ uint32_t helper_get(uint32_t id, uint32_t ctrl)
 void helper_raise_exception(uint32_t index)
 {
     env->exception_index = index;
-    cpu_loop_exit();
+    cpu_loop_exit(env);
 }
 
 void helper_debug(void)
@@ -163,6 +164,11 @@ uint32_t helper_cmpu(uint32_t a, uint32_t b)
     return t;
 }
 
+uint32_t helper_clz(uint32_t t0)
+{
+    return clz32(t0);
+}
+
 uint32_t helper_carry(uint32_t a, uint32_t b, uint32_t cf)
 {
     uint32_t ncf;
@@ -476,6 +482,17 @@ void helper_memalign(uint32_t addr, uint32_t dr, uint32_t wr, uint32_t mask)
     }
 }
 
+void helper_stackprot(uint32_t addr)
+{
+    if (addr < env->slr || addr > env->shr) {
+            qemu_log("Stack protector violation at %x %x %x\n",
+                     addr, env->slr, env->shr);
+            env->sregs[SR_EAR] = addr;
+            env->sregs[SR_ESR] = ESR_EC_STACKPROT;
+            helper_raise_exception(EXCP_HW_EXCP);
+    }
+}
+
 #if !defined(CONFIG_USER_ONLY)
 /* Writes/reads to the MMU's special regs end up here.  */
 uint32_t helper_mmu_read(uint32_t rn)
@@ -488,20 +505,14 @@ void helper_mmu_write(uint32_t rn, uint32_t v)
     mmu_write(env, rn, v);
 }
 
-void do_unassigned_access(target_phys_addr_t addr, int is_write, int is_exec,
-                          int is_asi, int size)
+void cpu_unassigned_access(CPUMBState *env1, target_phys_addr_t addr,
+                           int is_write, int is_exec, int is_asi, int size)
 {
-    CPUState *saved_env;
+    CPUMBState *saved_env;
 
-    if (!cpu_single_env) {
-        /* XXX: ???   */
-        return;
-    }
-
-    /* XXX: hack to restore env in all cases, even if not called from
-       generated code */
     saved_env = env;
-    env = cpu_single_env;
+    env = env1;
+
     qemu_log_mask(CPU_LOG_INT, "Unassigned " TARGET_FMT_plx " wr=%d exe=%d\n",
              addr, is_write, is_exec);
     if (!(env->sregs[SR_MSR] & MSR_EE)) {