exec.h cleanup

Move softmmu_exec.h include directives from target-*/exec.h to
target-*/op_helper.c. Move also various other stuff only used in
op_helper.c there.

Define global env in dyngen-exec.h.

For i386, move wrappers for segment and FPU helpers from user-exec.c
to op_helper.c. Implement raise_exception_err_env() to handle dynamic
CPUState. Move the function declarations to cpu.h since they can be
used outside of op_helper.c context.

LM32, s390x, UniCore32: remove unused cpu_halted(), regs_to_env() and
env_to_regs().

ARM: make raise_exception() static.

Convert
#include "exec.h"
to
#include "cpu.h"
#include "dyngen-exec.h"
and remove now unused target-*/exec.h.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>

32 files changed, 273 insertions, 620 deletions

diff --git a/dyngen-exec.h b/dyngen-exec.h
index db00fba..cc1e4fb 100644
--- a/dyngen-exec.h
+++ b/dyngen-exec.h
@@ -64,6 +64,8 @@ typedef void * host_reg_t;
 #error unsupported CPU
 #endif
 
+register CPUState *env asm(AREG0);
+
 #define xglue(x, y) x ## y
 #define glue(x, y) xglue(x, y)
 #define stringify(s)	tostring(s)
diff --git a/hw/spapr_hcall.c b/hw/spapr_hcall.c
index 5cd8d8f..f7ead04 100644
--- a/hw/spapr_hcall.c
+++ b/hw/spapr_hcall.c
@@ -1,9 +1,9 @@
 #include "sysemu.h"
 #include "cpu.h"
+#include "dyngen-exec.h"
 #include "qemu-char.h"
 #include "sysemu.h"
 #include "qemu-char.h"
-#include "exec.h"
 #include "helper_regs.h"
 #include "hw/spapr.h"
 
diff --git a/target-alpha/exec.h b/target-alpha/exec.h
deleted file mode 100644
index afb01d3..0000000
--- a/target-alpha/exec.h
+++ /dev/null
@@ -1,39 +0,0 @@
-/*
- *  Alpha emulation cpu run-time definitions for qemu.
- *
- *  Copyright (c) 2007 Jocelyn Mayer
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, see <http://www.gnu.org/licenses/>.
- */
-
-#if !defined (__ALPHA_EXEC_H__)
-#define __ALPHA_EXEC_H__
-
-#include "config.h"
-
-#include "dyngen-exec.h"
-
-#define TARGET_LONG_BITS 64
-
-register struct CPUAlphaState *env asm(AREG0);
-
-#define FP_STATUS (env->fp_status)
-
-#include "cpu.h"
-
-#if !defined(CONFIG_USER_ONLY)
-#include "softmmu_exec.h"
-#endif /* !defined(CONFIG_USER_ONLY) */
-
-#endif /* !defined (__ALPHA_EXEC_H__) */
diff --git a/target-alpha/op_helper.c b/target-alpha/op_helper.c
index 8f39154..c2bb679 100644
--- a/target-alpha/op_helper.c
+++ b/target-alpha/op_helper.c
@@ -17,12 +17,15 @@
  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  */
 
-#include "exec.h"
+#include "cpu.h"
+#include "dyngen-exec.h"
 #include "host-utils.h"
 #include "softfloat.h"
 #include "helper.h"
 #include "qemu-timer.h"
 
+#define FP_STATUS (env->fp_status)
+
 /*****************************************************************************/
 /* Exceptions processing helpers */
 
@@ -1311,6 +1314,8 @@ void QEMU_NORETURN cpu_unassigned_access(CPUState *env1,
     dynamic_excp(EXCP_MCHK, 0);
 }
 
+#include "softmmu_exec.h"
+
 #define MMUSUFFIX _mmu
 #define ALIGNED_ONLY
 
diff --git a/target-arm/exec.h b/target-arm/exec.h
deleted file mode 100644
index 6793288..0000000
--- a/target-arm/exec.h
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
- *  ARM execution defines
- *
- *  Copyright (c) 2003 Fabrice Bellard
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, see <http://www.gnu.org/licenses/>.
- */
-#include "config.h"
-#include "dyngen-exec.h"
-
-register struct CPUARMState *env asm(AREG0);
-
-#include "cpu.h"
-
-#if !defined(CONFIG_USER_ONLY)
-#include "softmmu_exec.h"
-#endif
-
-void raise_exception(int);
diff --git a/target-arm/op_helper.c b/target-arm/op_helper.c
index 4635884..57e4977 100644
--- a/target-arm/op_helper.c
+++ b/target-arm/op_helper.c
@@ -16,17 +16,20 @@
  * You should have received a copy of the GNU Lesser General Public
  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  */
-#include "exec.h"
+#include "cpu.h"
+#include "dyngen-exec.h"
 #include "helper.h"
 
 #define SIGNBIT (uint32_t)0x80000000
 #define SIGNBIT64 ((uint64_t)1 << 63)
 
-void raise_exception(int tt)
+#if !defined(CONFIG_USER_ONLY)
+static void raise_exception(int tt)
 {
     env->exception_index = tt;
     cpu_loop_exit(env);
 }
+#endif
 
 uint32_t HELPER(neon_tbl)(uint32_t ireg, uint32_t def,
                           uint32_t rn, uint32_t maxindex)
@@ -52,6 +55,8 @@ uint32_t HELPER(neon_tbl)(uint32_t ireg, uint32_t def,
 
 #if !defined(CONFIG_USER_ONLY)
 
+#include "softmmu_exec.h"
+
 #define MMUSUFFIX _mmu
 
 #define SHIFT 0
diff --git a/target-cris/exec.h b/target-cris/exec.h
deleted file mode 100644
index 3294abe..0000000
--- a/target-cris/exec.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- *  CRIS execution defines
- *
- *  Copyright (c) 2007 AXIS Communications AB
- *  Written by Edgar E. Iglesias
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, see <http://www.gnu.org/licenses/>.
- */
-#include "dyngen-exec.h"
-
-register struct CPUCRISState *env asm(AREG0);
-
-#include "cpu.h"
-
-#if !defined(CONFIG_USER_ONLY)
-#include "softmmu_exec.h"
-#endif
diff --git a/target-cris/op_helper.c b/target-cris/op_helper.c
index b3ddd33..246f08f 100644
--- a/target-cris/op_helper.c
+++ b/target-cris/op_helper.c
@@ -18,7 +18,8 @@
  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  */
 
-#include "exec.h"
+#include "cpu.h"
+#include "dyngen-exec.h"
 #include "mmu.h"
 #include "helper.h"
 #include "host-utils.h"
@@ -35,6 +36,7 @@
 #endif
 
 #if !defined(CONFIG_USER_ONLY)
+#include "softmmu_exec.h"
 
 #define MMUSUFFIX _mmu
 
diff --git a/target-i386/cpu.h b/target-i386/cpu.h
index 9819b5f..dd6c5fa 100644
--- a/target-i386/cpu.h
+++ b/target-i386/cpu.h
@@ -1050,6 +1050,9 @@ void cpu_x86_inject_mce(Monitor *mon, CPUState *cenv, int bank,
 /* op_helper.c */
 void do_interrupt(CPUState *env);
 void do_interrupt_x86_hardirq(CPUState *env, int intno, int is_hw);
+void QEMU_NORETURN raise_exception_env(int exception_index, CPUState *nenv);
+void QEMU_NORETURN raise_exception_err_env(CPUState *nenv, int exception_index,
+                                           int error_code);
 
 void do_smm_enter(CPUState *env1);
 
diff --git a/target-i386/exec.h b/target-i386/exec.h
deleted file mode 100644
index dd9bce4..0000000
--- a/target-i386/exec.h
+++ /dev/null
@@ -1,142 +0,0 @@
-/*
- *  i386 execution defines
- *
- *  Copyright (c) 2003 Fabrice Bellard
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, see <http://www.gnu.org/licenses/>.
- */
-#include "config.h"
-#include "dyngen-exec.h"
-
-/* XXX: factorize this mess */
-#ifdef TARGET_X86_64
-#define TARGET_LONG_BITS 64
-#else
-#define TARGET_LONG_BITS 32
-#endif
-
-#include "cpu-defs.h"
-
-register struct CPUX86State *env asm(AREG0);
-
-#include "qemu-common.h"
-#include "qemu-log.h"
-
-#include "cpu.h"
-
-/* op_helper.c */
-void QEMU_NORETURN raise_exception_err(int exception_index, int error_code);
-void QEMU_NORETURN raise_exception(int exception_index);
-void QEMU_NORETURN raise_exception_env(int exception_index, CPUState *nenv);
-
-/* n must be a constant to be efficient */
-static inline target_long lshift(target_long x, int n)
-{
-    if (n >= 0)
-        return x << n;
-    else
-        return x >> (-n);
-}
-
-#include "helper.h"
-
-#if !defined(CONFIG_USER_ONLY)
-
-#include "softmmu_exec.h"
-
-#endif /* !defined(CONFIG_USER_ONLY) */
-
-#define RC_MASK         0xc00
-#define RC_NEAR		0x000
-#define RC_DOWN		0x400
-#define RC_UP		0x800
-#define RC_CHOP		0xc00
-
-#define MAXTAN 9223372036854775808.0
-
-/* the following deal with x86 long double-precision numbers */
-#define MAXEXPD 0x7fff
-#define EXPBIAS 16383
-#define EXPD(fp)	(fp.l.upper & 0x7fff)
-#define SIGND(fp)	((fp.l.upper) & 0x8000)
-#define MANTD(fp)       (fp.l.lower)
-#define BIASEXPONENT(fp) fp.l.upper = (fp.l.upper & ~(0x7fff)) | EXPBIAS
-
-static inline void fpush(void)
-{
-    env->fpstt = (env->fpstt - 1) & 7;
-    env->fptags[env->fpstt] = 0; /* validate stack entry */
-}
-
-static inline void fpop(void)
-{
-    env->fptags[env->fpstt] = 1; /* invvalidate stack entry */
-    env->fpstt = (env->fpstt + 1) & 7;
-}
-
-static inline floatx80 helper_fldt(target_ulong ptr)
-{
-    CPU_LDoubleU temp;
-
-    temp.l.lower = ldq(ptr);
-    temp.l.upper = lduw(ptr + 8);
-    return temp.d;
-}
-
-static inline void helper_fstt(floatx80 f, target_ulong ptr)
-{
-    CPU_LDoubleU temp;
-
-    temp.d = f;
-    stq(ptr, temp.l.lower);
-    stw(ptr + 8, temp.l.upper);
-}
-
-#define FPUS_IE (1 << 0)
-#define FPUS_DE (1 << 1)
-#define FPUS_ZE (1 << 2)
-#define FPUS_OE (1 << 3)
-#define FPUS_UE (1 << 4)
-#define FPUS_PE (1 << 5)
-#define FPUS_SF (1 << 6)
-#define FPUS_SE (1 << 7)
-#define FPUS_B  (1 << 15)
-
-#define FPUC_EM 0x3f
-
-static inline uint32_t compute_eflags(void)
-{
-    return env->eflags | helper_cc_compute_all(CC_OP) | (DF & DF_MASK);
-}
-
-/* NOTE: CC_OP must be modified manually to CC_OP_EFLAGS */
-static inline void load_eflags(int eflags, int update_mask)
-{
-    CC_SRC = eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C);
-    DF = 1 - (2 * ((eflags >> 10) & 1));
-    env->eflags = (env->eflags & ~update_mask) |
-        (eflags & update_mask) | 0x2;
-}
-
-/* load efer and update the corresponding hflags. XXX: do consistency
-   checks with cpuid bits ? */
-static inline void cpu_load_efer(CPUState *env, uint64_t val)
-{
-    env->efer = val;
-    env->hflags &= ~(HF_LMA_MASK | HF_SVME_MASK);
-    if (env->efer & MSR_EFER_LMA)
-        env->hflags |= HF_LMA_MASK;
-    if (env->efer & MSR_EFER_SVME)
-        env->hflags |= HF_SVME_MASK;
-}
diff --git a/target-i386/helper.c b/target-i386/helper.c
index e9be104..182009a 100644
--- a/target-i386/helper.c
+++ b/target-i386/helper.c
@@ -1027,8 +1027,6 @@ int check_hw_breakpoints(CPUState *env, int force_dr6_update)
 
 static CPUDebugExcpHandler *prev_debug_excp_handler;
 
-void raise_exception_env(int exception_index, CPUState *env);
-
 static void breakpoint_handler(CPUState *env)
 {
     CPUBreakpoint *bp;
diff --git a/target-i386/op_helper.c b/target-i386/op_helper.c
index 315e18b..1380934 100644
--- a/target-i386/op_helper.c
+++ b/target-i386/op_helper.c
@@ -18,12 +18,20 @@
  */
 
 #include <math.h>
-#include "exec.h"
+#include "cpu.h"
+#include "dyngen-exec.h"
 #include "host-utils.h"
 #include "ioport.h"
+#include "qemu-common.h"
+#include "qemu-log.h"
+#include "cpu-defs.h"
+#include "helper.h"
 
-//#define DEBUG_PCALL
+#if !defined(CONFIG_USER_ONLY)
+#include "softmmu_exec.h"
+#endif /* !defined(CONFIG_USER_ONLY) */
 
+//#define DEBUG_PCALL
 
 #ifdef DEBUG_PCALL
 #  define LOG_PCALL(...) qemu_log_mask(CPU_LOG_PCALL, ## __VA_ARGS__)
@@ -34,6 +42,101 @@
 #  define LOG_PCALL_STATE(env) do { } while (0)
 #endif
 
+/* n must be a constant to be efficient */
+static inline target_long lshift(target_long x, int n)
+{
+    if (n >= 0) {
+        return x << n;
+    } else {
+        return x >> (-n);
+    }
+}
+
+#define RC_MASK         0xc00
+#define RC_NEAR         0x000
+#define RC_DOWN         0x400
+#define RC_UP           0x800
+#define RC_CHOP         0xc00
+
+#define MAXTAN 9223372036854775808.0
+
+/* the following deal with x86 long double-precision numbers */
+#define MAXEXPD 0x7fff
+#define EXPBIAS 16383
+#define EXPD(fp)        (fp.l.upper & 0x7fff)
+#define SIGND(fp)       ((fp.l.upper) & 0x8000)
+#define MANTD(fp)       (fp.l.lower)
+#define BIASEXPONENT(fp) fp.l.upper = (fp.l.upper & ~(0x7fff)) | EXPBIAS
+
+static inline void fpush(void)
+{
+    env->fpstt = (env->fpstt - 1) & 7;
+    env->fptags[env->fpstt] = 0; /* validate stack entry */
+}
+
+static inline void fpop(void)
+{
+    env->fptags[env->fpstt] = 1; /* invvalidate stack entry */
+    env->fpstt = (env->fpstt + 1) & 7;
+}
+
+static inline floatx80 helper_fldt(target_ulong ptr)
+{
+    CPU_LDoubleU temp;
+
+    temp.l.lower = ldq(ptr);
+    temp.l.upper = lduw(ptr + 8);
+    return temp.d;
+}
+
+static inline void helper_fstt(floatx80 f, target_ulong ptr)
+{
+    CPU_LDoubleU temp;
+
+    temp.d = f;
+    stq(ptr, temp.l.lower);
+    stw(ptr + 8, temp.l.upper);
+}
+
+#define FPUS_IE (1 << 0)
+#define FPUS_DE (1 << 1)
+#define FPUS_ZE (1 << 2)
+#define FPUS_OE (1 << 3)
+#define FPUS_UE (1 << 4)
+#define FPUS_PE (1 << 5)
+#define FPUS_SF (1 << 6)
+#define FPUS_SE (1 << 7)
+#define FPUS_B  (1 << 15)
+
+#define FPUC_EM 0x3f
+
+static inline uint32_t compute_eflags(void)
+{
+    return env->eflags | helper_cc_compute_all(CC_OP) | (DF & DF_MASK);
+}
+
+/* NOTE: CC_OP must be modified manually to CC_OP_EFLAGS */
+static inline void load_eflags(int eflags, int update_mask)
+{
+    CC_SRC = eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C);
+    DF = 1 - (2 * ((eflags >> 10) & 1));
+    env->eflags = (env->eflags & ~update_mask) |
+        (eflags & update_mask) | 0x2;
+}
+
+/* load efer and update the corresponding hflags. XXX: do consistency
+   checks with cpuid bits ? */
+static inline void cpu_load_efer(CPUState *env, uint64_t val)
+{
+    env->efer = val;
+    env->hflags &= ~(HF_LMA_MASK | HF_SVME_MASK);
+    if (env->efer & MSR_EFER_LMA) {
+        env->hflags |= HF_LMA_MASK;
+    }
+    if (env->efer & MSR_EFER_SVME) {
+        env->hflags |= HF_SVME_MASK;
+    }
+}
 
 #if 0
 #define raise_exception_err(a, b)\
@@ -43,6 +146,9 @@ do {\
 } while (0)
 #endif
 
+static void QEMU_NORETURN raise_exception_err(int exception_index,
+                                              int error_code);
+
 static const uint8_t parity_table[256] = {
     CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
     0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
@@ -1381,12 +1487,20 @@ static void QEMU_NORETURN raise_interrupt(int intno, int is_int, int error_code,
 
 /* shortcuts to generate exceptions */
 
-void raise_exception_err(int exception_index, int error_code)
+static void QEMU_NORETURN raise_exception_err(int exception_index,
+                                              int error_code)
+{
+    raise_interrupt(exception_index, 0, error_code, 0);
+}
+
+void raise_exception_err_env(CPUState *nenv, int exception_index,
+                             int error_code)
 {
+    env = nenv;
     raise_interrupt(exception_index, 0, error_code, 0);
 }
 
-void raise_exception(int exception_index)
+static void QEMU_NORETURN raise_exception(int exception_index)
 {
     raise_interrupt(exception_index, 0, 0, 0);
 }
@@ -4426,6 +4540,49 @@ void helper_frstor(target_ulong ptr, int data32)
     }
 }
 
+
+#if defined(CONFIG_USER_ONLY)
+void cpu_x86_load_seg(CPUX86State *s, int seg_reg, int selector)
+{
+    CPUX86State *saved_env;
+
+    saved_env = env;
+    env = s;
+    if (!(env->cr[0] & CR0_PE_MASK) || (env->eflags & VM_MASK)) {
+        selector &= 0xffff;
+        cpu_x86_load_seg_cache(env, seg_reg, selector,
+                               (selector << 4), 0xffff, 0);
+    } else {
+        helper_load_seg(seg_reg, selector);
+    }
+    env = saved_env;
+}
+
+void cpu_x86_fsave(CPUX86State *s, target_ulong ptr, int data32)
+{
+    CPUX86State *saved_env;
+
+    saved_env = env;
+    env = s;
+
+    helper_fsave(ptr, data32);
+
+    env = saved_env;
+}
+
+void cpu_x86_frstor(CPUX86State *s, target_ulong ptr, int data32)
+{
+    CPUX86State *saved_env;
+
+    saved_env = env;
+    env = s;
+
+    helper_frstor(ptr, data32);
+
+    env = saved_env;
+}
+#endif
+
 void helper_fxsave(target_ulong ptr, int data64)
 {
     int fpus, fptag, i, nb_xmm_regs;
diff --git a/target-lm32/exec.h b/target-lm32/exec.h
deleted file mode 100644
index 2a227b2..0000000
--- a/target-lm32/exec.h
+++ /dev/null
@@ -1,38 +0,0 @@
-/*
- *  LatticeMico32 execution defines.
- *
- *  Copyright (c) 2010 Michael Walle <michael@walle.cc>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, see <http://www.gnu.org/licenses/>.
- */
-
-#include "dyngen-exec.h"
-
-register struct CPULM32State *env asm(AREG0);
-
-#include "cpu.h"
-
-static inline int cpu_halted(CPUState *env)
-{
-    if (!env->halted) {
-        return 0;
-    }
-
-    /* IRQ execeptions wakes us up.  */
-    if (cpu_has_work(env)) {
-        env->halted = 0;
-        return 0;
-    }
-    return EXCP_HALTED;
-}
diff --git a/target-lm32/op_helper.c b/target-lm32/op_helper.c
index a34cecd..32b9a03 100644
--- a/target-lm32/op_helper.c
+++ b/target-lm32/op_helper.c
@@ -1,5 +1,6 @@
 #include <assert.h>
-#include "exec.h"
+#include "cpu.h"
+#include "dyngen-exec.h"
 #include "helper.h"
 #include "host-utils.h"
 
diff --git a/target-m68k/exec.h b/target-m68k/exec.h
deleted file mode 100644
index 93e7912..0000000
--- a/target-m68k/exec.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- *  m68k execution defines
- *
- *  Copyright (c) 2005-2006 CodeSourcery
- *  Written by Paul Brook
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, see <http://www.gnu.org/licenses/>.
- */
-#include "dyngen-exec.h"
-
-register struct CPUM68KState *env asm(AREG0);
-
-#include "cpu.h"
-
-#if !defined(CONFIG_USER_ONLY)
-#include "softmmu_exec.h"
-#endif
diff --git a/target-m68k/op_helper.c b/target-m68k/op_helper.c
index 237fc4c..764b6a0 100644
--- a/target-m68k/op_helper.c
+++ b/target-m68k/op_helper.c
@@ -16,7 +16,8 @@
  * You should have received a copy of the GNU Lesser General Public
  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  */
-#include "exec.h"
+#include "cpu.h"
+#include "dyngen-exec.h"
 #include "helpers.h"
 
 #if defined(CONFIG_USER_ONLY)
@@ -34,6 +35,8 @@ void do_interrupt_m68k_hardirq(CPUState *env1)
 
 extern int semihosting_enabled;
 
+#include "softmmu_exec.h"
+
 #define MMUSUFFIX _mmu
 
 #define SHIFT 0
diff --git a/target-microblaze/exec.h b/target-microblaze/exec.h
deleted file mode 100644
index 71b4d39..0000000
--- a/target-microblaze/exec.h
+++ /dev/null
@@ -1,27 +0,0 @@
-/*
- *  Microblaze execution defines
- *
- *  Copyright (c) 2009 Edgar E. Iglesias
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, see <http://www.gnu.org/licenses/>.
- */
-#include "dyngen-exec.h"
-
-register struct CPUMBState *env asm(AREG0);
-
-#include "cpu.h"
-
-#if !defined(CONFIG_USER_ONLY)
-#include "softmmu_exec.h"
-#endif
diff --git a/target-microblaze/op_helper.c b/target-microblaze/op_helper.c
index 664ffe59..189c59c 100644
--- a/target-microblaze/op_helper.c
+++ b/target-microblaze/op_helper.c
@@ -18,13 +18,16 @@
  */
 
 #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"
diff --git a/target-mips/cpu.h b/target-mips/cpu.h
index 33be296..030f499 100644
--- a/target-mips/cpu.h
+++ b/target-mips/cpu.h
@@ -1,6 +1,8 @@
 #if !defined (__MIPS_CPU_H__)
 #define __MIPS_CPU_H__
 
+//#define DEBUG_OP
+
 #define TARGET_HAS_ICE 1
 
 #define ELF_MACHINE	EM_MIPS
diff --git a/target-mips/exec.h b/target-mips/exec.h
deleted file mode 100644
index e787e9a..0000000
--- a/target-mips/exec.h
+++ /dev/null
@@ -1,60 +0,0 @@
-#if !defined(__QEMU_MIPS_EXEC_H__)
-#define __QEMU_MIPS_EXEC_H__
-
-//#define DEBUG_OP
-
-#include "config.h"
-#include "mips-defs.h"
-#include "dyngen-exec.h"
-#include "cpu-defs.h"
-
-register struct CPUMIPSState *env asm(AREG0);
-
-#include "cpu.h"
-
-#if !defined(CONFIG_USER_ONLY)
-#include "softmmu_exec.h"
-#endif /* !defined(CONFIG_USER_ONLY) */
-
-static inline void compute_hflags(CPUState *env)
-{
-    env->hflags &= ~(MIPS_HFLAG_COP1X | MIPS_HFLAG_64 | MIPS_HFLAG_CP0 |
-                     MIPS_HFLAG_F64 | MIPS_HFLAG_FPU | MIPS_HFLAG_KSU |
-                     MIPS_HFLAG_UX);
-    if (!(env->CP0_Status & (1 << CP0St_EXL)) &&
-        !(env->CP0_Status & (1 << CP0St_ERL)) &&
-        !(env->hflags & MIPS_HFLAG_DM)) {
-        env->hflags |= (env->CP0_Status >> CP0St_KSU) & MIPS_HFLAG_KSU;
-    }
-#if defined(TARGET_MIPS64)
-    if (((env->hflags & MIPS_HFLAG_KSU) != MIPS_HFLAG_UM) ||
-        (env->CP0_Status & (1 << CP0St_PX)) ||
-        (env->CP0_Status & (1 << CP0St_UX)))
-        env->hflags |= MIPS_HFLAG_64;
-    if (env->CP0_Status & (1 << CP0St_UX))
-        env->hflags |= MIPS_HFLAG_UX;
-#endif
-    if ((env->CP0_Status & (1 << CP0St_CU0)) ||
-        !(env->hflags & MIPS_HFLAG_KSU))
-        env->hflags |= MIPS_HFLAG_CP0;
-    if (env->CP0_Status & (1 << CP0St_CU1))
-        env->hflags |= MIPS_HFLAG_FPU;
-    if (env->CP0_Status & (1 << CP0St_FR))
-        env->hflags |= MIPS_HFLAG_F64;
-    if (env->insn_flags & ISA_MIPS32R2) {
-        if (env->active_fpu.fcr0 & (1 << FCR0_F64))
-            env->hflags |= MIPS_HFLAG_COP1X;
-    } else if (env->insn_flags & ISA_MIPS32) {
-        if (env->hflags & MIPS_HFLAG_64)
-            env->hflags |= MIPS_HFLAG_COP1X;
-    } else if (env->insn_flags & ISA_MIPS4) {
-        /* All supported MIPS IV CPUs use the XX (CU3) to enable
-           and disable the MIPS IV extensions to the MIPS III ISA.
-           Some other MIPS IV CPUs ignore the bit, so the check here
-           would be too restrictive for them.  */
-        if (env->CP0_Status & (1 << CP0St_CU3))
-            env->hflags |= MIPS_HFLAG_COP1X;
-    }
-}
-
-#endif /* !defined(__QEMU_MIPS_EXEC_H__) */
diff --git a/target-mips/op_helper.c b/target-mips/op_helper.c
index 01315ef..185ae40 100644
--- a/target-mips/op_helper.c
+++ b/target-mips/op_helper.c
@@ -17,16 +17,70 @@
  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  */
 #include <stdlib.h>
-#include "exec.h"
+#include "cpu.h"
+#include "dyngen-exec.h"
 
 #include "host-utils.h"
 
 #include "helper.h"
 
+#if !defined(CONFIG_USER_ONLY)
+#include "softmmu_exec.h"
+#endif /* !defined(CONFIG_USER_ONLY) */
+
 #ifndef CONFIG_USER_ONLY
 static inline void cpu_mips_tlb_flush (CPUState *env, int flush_global);
 #endif
 
+static inline void compute_hflags(CPUState *env)
+{
+    env->hflags &= ~(MIPS_HFLAG_COP1X | MIPS_HFLAG_64 | MIPS_HFLAG_CP0 |
+                     MIPS_HFLAG_F64 | MIPS_HFLAG_FPU | MIPS_HFLAG_KSU |
+                     MIPS_HFLAG_UX);
+    if (!(env->CP0_Status & (1 << CP0St_EXL)) &&
+        !(env->CP0_Status & (1 << CP0St_ERL)) &&
+        !(env->hflags & MIPS_HFLAG_DM)) {
+        env->hflags |= (env->CP0_Status >> CP0St_KSU) & MIPS_HFLAG_KSU;
+    }
+#if defined(TARGET_MIPS64)
+    if (((env->hflags & MIPS_HFLAG_KSU) != MIPS_HFLAG_UM) ||
+        (env->CP0_Status & (1 << CP0St_PX)) ||
+        (env->CP0_Status & (1 << CP0St_UX))) {
+        env->hflags |= MIPS_HFLAG_64;
+    }
+    if (env->CP0_Status & (1 << CP0St_UX)) {
+        env->hflags |= MIPS_HFLAG_UX;
+    }
+#endif
+    if ((env->CP0_Status & (1 << CP0St_CU0)) ||
+        !(env->hflags & MIPS_HFLAG_KSU)) {
+        env->hflags |= MIPS_HFLAG_CP0;
+    }
+    if (env->CP0_Status & (1 << CP0St_CU1)) {
+        env->hflags |= MIPS_HFLAG_FPU;
+    }
+    if (env->CP0_Status & (1 << CP0St_FR)) {
+        env->hflags |= MIPS_HFLAG_F64;
+    }
+    if (env->insn_flags & ISA_MIPS32R2) {
+        if (env->active_fpu.fcr0 & (1 << FCR0_F64)) {
+            env->hflags |= MIPS_HFLAG_COP1X;
+        }
+    } else if (env->insn_flags & ISA_MIPS32) {
+        if (env->hflags & MIPS_HFLAG_64) {
+            env->hflags |= MIPS_HFLAG_COP1X;
+        }
+    } else if (env->insn_flags & ISA_MIPS4) {
+        /* All supported MIPS IV CPUs use the XX (CU3) to enable
+           and disable the MIPS IV extensions to the MIPS III ISA.
+           Some other MIPS IV CPUs ignore the bit, so the check here
+           would be too restrictive for them.  */
+        if (env->CP0_Status & (1 << CP0St_CU3)) {
+            env->hflags |= MIPS_HFLAG_COP1X;
+        }
+    }
+}
+
 /*****************************************************************************/
 /* Exceptions processing helpers */
 
diff --git a/target-ppc/exec.h b/target-ppc/exec.h
deleted file mode 100644
index f4453e4..0000000
--- a/target-ppc/exec.h
+++ /dev/null
@@ -1,34 +0,0 @@
-/*
- *  PowerPC emulation definitions for qemu.
- *
- *  Copyright (c) 2003-2007 Jocelyn Mayer
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, see <http://www.gnu.org/licenses/>.
- */
-#if !defined (__PPC_H__)
-#define __PPC_H__
-
-#include "config.h"
-
-#include "dyngen-exec.h"
-
-#include "cpu.h"
-
-register struct CPUPPCState *env asm(AREG0);
-
-#if !defined(CONFIG_USER_ONLY)
-#include "softmmu_exec.h"
-#endif /* !defined(CONFIG_USER_ONLY) */
-
-#endif /* !defined (__PPC_H__) */
diff --git a/target-ppc/op_helper.c b/target-ppc/op_helper.c
index dde7595..6e100d9 100644
--- a/target-ppc/op_helper.c
+++ b/target-ppc/op_helper.c
@@ -17,12 +17,17 @@
  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  */
 #include <string.h>
-#include "exec.h"
+#include "cpu.h"
+#include "dyngen-exec.h"
 #include "host-utils.h"
 #include "helper.h"
 
 #include "helper_regs.h"
 
+#if !defined(CONFIG_USER_ONLY)
+#include "softmmu_exec.h"
+#endif /* !defined(CONFIG_USER_ONLY) */
+
 //#define DEBUG_OP
 //#define DEBUG_EXCEPTIONS
 //#define DEBUG_SOFTWARE_TLB
diff --git a/target-s390x/exec.h b/target-s390x/exec.h
deleted file mode 100644
index fb73f31..0000000
--- a/target-s390x/exec.h
+++ /dev/null
@@ -1,37 +0,0 @@
-/*
- *  S/390 execution defines
- *
- *  Copyright (c) 2009 Ulrich Hecht
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, see <http://www.gnu.org/licenses/>.
- */
-
-#include "dyngen-exec.h"
-
-register struct CPUS390XState *env asm(AREG0);
-
-#include "config.h"
-#include "cpu.h"
-
-#if !defined(CONFIG_USER_ONLY)
-#include "softmmu_exec.h"
-#endif /* !defined(CONFIG_USER_ONLY) */
-
-static inline void regs_to_env(void)
-{
-}
-
-static inline void env_to_regs(void)
-{
-}
diff --git a/target-s390x/op_helper.c b/target-s390x/op_helper.c
index cd33f99..25a1e81 100644
--- a/target-s390x/op_helper.c
+++ b/target-s390x/op_helper.c
@@ -18,7 +18,8 @@
  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  */
 
-#include "exec.h"
+#include "cpu.h"
+#include "dyngen-exec.h"
 #include "host-utils.h"
 #include "helpers.h"
 #include <string.h>
@@ -31,6 +32,7 @@
 /*****************************************************************************/
 /* Softmmu support */
 #if !defined (CONFIG_USER_ONLY)
+#include "softmmu_exec.h"
 
 #define MMUSUFFIX _mmu
 
diff --git a/target-sh4/exec.h b/target-sh4/exec.h
deleted file mode 100644
index 4a6ae58..0000000
--- a/target-sh4/exec.h
+++ /dev/null
@@ -1,33 +0,0 @@
-/*
- *  SH4 emulation
- *
- *  Copyright (c) 2005 Samuel Tardieu
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, see <http://www.gnu.org/licenses/>.
- */
-#ifndef _EXEC_SH4_H
-#define _EXEC_SH4_H
-
-#include "config.h"
-#include "dyngen-exec.h"
-
-register struct CPUSH4State *env asm(AREG0);
-
-#include "cpu.h"
-
-#ifndef CONFIG_USER_ONLY
-#include "softmmu_exec.h"
-#endif
-
-#endif				/* _EXEC_SH4_H */
diff --git a/target-sh4/op_helper.c b/target-sh4/op_helper.c
index a932225..568bf0d 100644
--- a/target-sh4/op_helper.c
+++ b/target-sh4/op_helper.c
@@ -18,7 +18,8 @@
  */
 #include <assert.h>
 #include <stdlib.h>
-#include "exec.h"
+#include "cpu.h"
+#include "dyngen-exec.h"
 #include "helper.h"
 
 static void cpu_restore_state_from_retaddr(void *retaddr)
@@ -38,6 +39,7 @@ static void cpu_restore_state_from_retaddr(void *retaddr)
 }
 
 #ifndef CONFIG_USER_ONLY
+#include "softmmu_exec.h"
 
 #define MMUSUFFIX _mmu
 
diff --git a/target-sparc/exec.h b/target-sparc/exec.h
deleted file mode 100644
index 2395b00..0000000
--- a/target-sparc/exec.h
+++ /dev/null
@@ -1,15 +0,0 @@
-#ifndef EXEC_SPARC_H
-#define EXEC_SPARC_H 1
-#include "config.h"
-#include "dyngen-exec.h"
-
-register struct CPUSPARCState *env asm(AREG0);
-
-#include "cpu.h"
-#include "exec-all.h"
-
-#if !defined(CONFIG_USER_ONLY)
-#include "softmmu_exec.h"
-#endif /* !defined(CONFIG_USER_ONLY) */
-
-#endif
diff --git a/target-sparc/op_helper.c b/target-sparc/op_helper.c
index 8962e38..c1c4d4b 100644
--- a/target-sparc/op_helper.c
+++ b/target-sparc/op_helper.c
@@ -1,8 +1,13 @@
-#include "exec.h"
+#include "cpu.h"
+#include "dyngen-exec.h"
 #include "host-utils.h"
 #include "helper.h"
 #include "sysemu.h"
 
+#if !defined(CONFIG_USER_ONLY)
+#include "softmmu_exec.h"
+#endif
+
 //#define DEBUG_MMU
 //#define DEBUG_MXCC
 //#define DEBUG_UNALIGNED
diff --git a/target-unicore32/exec.h b/target-unicore32/exec.h
deleted file mode 100644
index 7912105..0000000
--- a/target-unicore32/exec.h
+++ /dev/null
@@ -1,43 +0,0 @@
-/*
- *  UniCore32 execution defines
- *
- * Copyright (C) 2010-2011 GUAN Xue-tao
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-#ifndef __UC32_EXEC_H__
-#define __UC32_EXEC_H__
-
-#include "config.h"
-#include "dyngen-exec.h"
-
-register struct CPUState_UniCore32 *env asm(AREG0);
-
-#include "cpu.h"
-
-static inline void env_to_regs(void)
-{
-}
-
-static inline void regs_to_env(void)
-{
-}
-
-static inline int cpu_halted(CPUState *env)
-{
-    if (!env->halted) {
-        return 0;
-    }
-    /* An interrupt wakes the CPU even if the I and R ASR bits are
-       set.  We use EXITTB to silently wake CPU without causing an
-       actual interrupt.  */
-    if (cpu_has_work(env)) {
-        env->halted = 0;
-        return 0;
-    }
-    return EXCP_HALTED;
-}
-
-#endif /* __UC32_EXEC_H__ */
diff --git a/target-unicore32/op_helper.c b/target-unicore32/op_helper.c
index 541e6f0..6cf5255 100644
--- a/target-unicore32/op_helper.c
+++ b/target-unicore32/op_helper.c
@@ -7,7 +7,8 @@
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
  */
-#include "exec.h"
+#include "cpu.h"
+#include "dyngen-exec.h"
 #include "helper.h"
 
 #define SIGNBIT (uint32_t)0x80000000
diff --git a/user-exec.c b/user-exec.c
index 02c2f8b..14c0f25 100644
--- a/user-exec.c
+++ b/user-exec.c
@@ -17,7 +17,8 @@
  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  */
 #include "config.h"
-#include "exec.h"
+#include "cpu.h"
+#include "dyngen-exec.h"
 #include "disas.h"
 #include "tcg.h"
 
@@ -40,7 +41,7 @@
 static void exception_action(CPUState *env1)
 {
 #if defined(TARGET_I386)
-    raise_exception_err(env1->exception_index, env1->error_code);
+    raise_exception_err_env(env1, env1->exception_index, env1->error_code);
 #else
     cpu_loop_exit(env1);
 #endif
@@ -628,47 +629,3 @@ int cpu_signal_handler(int host_signum, void *pinfo,
 #error host CPU specific signal handler needed
 
 #endif
-
-#if defined(TARGET_I386)
-
-void cpu_x86_load_seg(CPUX86State *s, int seg_reg, int selector)
-{
-    CPUX86State *saved_env;
-
-    saved_env = env;
-    env = s;
-    if (!(env->cr[0] & CR0_PE_MASK) || (env->eflags & VM_MASK)) {
-        selector &= 0xffff;
-        cpu_x86_load_seg_cache(env, seg_reg, selector,
-                               (selector << 4), 0xffff, 0);
-    } else {
-        helper_load_seg(seg_reg, selector);
-    }
-    env = saved_env;
-}
-
-void cpu_x86_fsave(CPUX86State *s, target_ulong ptr, int data32)
-{
-    CPUX86State *saved_env;
-
-    saved_env = env;
-    env = s;
-
-    helper_fsave(ptr, data32);
-
-    env = saved_env;
-}
-
-void cpu_x86_frstor(CPUX86State *s, target_ulong ptr, int data32)
-{
-    CPUX86State *saved_env;
-
-    saved_env = env;
-    env = s;
-
-    helper_frstor(ptr, data32);
-
-    env = saved_env;
-}
-
-#endif /* TARGET_I386 */