include/exec: Split out mmap-lock.h

Split out mmap_lock, et al from page-protection.h
to a new header.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

accel/tcg/cpu-exec.c

@@ -27,6 +27,7 @@
 #include "disas/disas.h"
 #include "exec/cpu-common.h"
 #include "exec/page-protection.h"
+#include "exec/mmap-lock.h"
 #include "exec/translation-block.h"
 #include "tcg/tcg.h"
 #include "qemu/atomic.h"

accel/tcg/internal-target.h

@@ -13,6 +13,7 @@
 #include "exec/translation-block.h"
 #include "tb-internal.h"
 #include "tcg-target-mo.h"
+#include "exec/mmap-lock.h"
 
 /*
  * Access to the various translations structures need to be serialised

accel/tcg/tb-maint.c

@@ -24,6 +24,7 @@
 #include "exec/log.h"
 #include "exec/exec-all.h"
 #include "exec/page-protection.h"
+#include "exec/mmap-lock.h"
 #include "exec/tb-flush.h"
 #include "tb-internal.h"
 #include "system/tcg.h"

accel/tcg/translate-all.c

@@ -45,6 +45,7 @@
 
 #include "exec/cputlb.h"
 #include "exec/page-protection.h"
+#include "exec/mmap-lock.h"
 #include "tb-internal.h"
 #include "exec/translator.h"
 #include "exec/tb-flush.h"

bsd-user/bsd-mem.h

@@ -56,6 +56,7 @@
 #include <fcntl.h>
 
 #include "qemu-bsd.h"
+#include "exec/mmap-lock.h"
 #include "exec/page-protection.h"
 #include "user/page-protection.h"
 

bsd-user/mmap.c

@@ -17,6 +17,7 @@
  *  along with this program; if not, see <http://www.gnu.org/licenses/>.
  */
 #include "qemu/osdep.h"
+#include "exec/mmap-lock.h"
 #include "exec/page-protection.h"
 #include "user/page-protection.h"
 

include/exec/mmap-lock.h

@@ -0,0 +1,33 @@
+/*
+ * QEMU user-only mmap lock, with stubs for system mode
+ *
+ *  Copyright (c) 2003 Fabrice Bellard
+ *
+ * SPDX-License-Identifier: LGPL-2.1-or-later
+ */
+#ifndef EXEC_MMAP_LOCK_H
+#define EXEC_MMAP_LOCK_H
+
+#ifdef CONFIG_USER_ONLY
+
+void TSA_NO_TSA mmap_lock(void);
+void TSA_NO_TSA mmap_unlock(void);
+bool have_mmap_lock(void);
+
+static inline void mmap_unlock_guard(void *unused)
+{
+    mmap_unlock();
+}
+
+#define WITH_MMAP_LOCK_GUARD() \
+    for (int _mmap_lock_iter __attribute__((cleanup(mmap_unlock_guard))) \
+         = (mmap_lock(), 0); _mmap_lock_iter == 0; _mmap_lock_iter = 1)
+
+#else
+
+static inline void mmap_lock(void) {}
+static inline void mmap_unlock(void) {}
+#define WITH_MMAP_LOCK_GUARD()
+
+#endif /* CONFIG_USER_ONLY */
+#endif /* EXEC_MMAP_LOCK_H */

include/exec/page-protection.h

@@ -38,26 +38,4 @@
  */
 #define PAGE_PASSTHROUGH 0x0800
 
-#ifdef CONFIG_USER_ONLY
-
-void TSA_NO_TSA mmap_lock(void);
-void TSA_NO_TSA mmap_unlock(void);
-bool have_mmap_lock(void);
-
-static inline void mmap_unlock_guard(void *unused)
-{
-    mmap_unlock();
-}
-
-#define WITH_MMAP_LOCK_GUARD() \
-    for (int _mmap_lock_iter __attribute__((cleanup(mmap_unlock_guard))) \
-         = (mmap_lock(), 0); _mmap_lock_iter == 0; _mmap_lock_iter = 1)
-#else
-
-static inline void mmap_lock(void) {}
-static inline void mmap_unlock(void) {}
-#define WITH_MMAP_LOCK_GUARD()
-
-#endif /* !CONFIG_USER_ONLY */
-
 #endif

linux-user/arm/cpu_loop.c

@@ -25,6 +25,7 @@
 #include "signal-common.h"
 #include "semihosting/common-semi.h"
 #include "exec/page-protection.h"
+#include "exec/mmap-lock.h"
 #include "user/page-protection.h"
 #include "target/arm/syndrome.h"
 

linux-user/elfload.c

@@ -10,6 +10,7 @@
 #include "user/tswap-target.h"
 #include "user/page-protection.h"
 #include "exec/page-protection.h"
+#include "exec/mmap-lock.h"
 #include "exec/translation-block.h"
 #include "user/guest-base.h"
 #include "user-internals.h"

linux-user/flatload.c

@@ -35,6 +35,7 @@
 
 #include "qemu.h"
 #include "exec/page-protection.h"
+#include "exec/mmap-lock.h"
 #include "user-internals.h"
 #include "loader.h"
 #include "user-mmap.h"

linux-user/mmap.c

@@ -21,6 +21,7 @@
 #include "trace.h"
 #include "exec/log.h"
 #include "exec/page-protection.h"
+#include "exec/mmap-lock.h"
 #include "exec/tb-flush.h"
 #include "exec/translation-block.h"
 #include "qemu.h"

linux-user/syscall.c

@@ -26,6 +26,7 @@
 #include "tcg/startup.h"
 #include "target_mman.h"
 #include "exec/page-protection.h"
+#include "exec/mmap-lock.h"
 #include "exec/tb-flush.h"
 #include "exec/translation-block.h"
 #include <elf.h>

target/arm/helper.c

@@ -14,6 +14,7 @@
 #include "cpu-features.h"
 #include "exec/helper-proto.h"
 #include "exec/page-protection.h"
+#include "exec/mmap-lock.h"
 #include "qemu/main-loop.h"
 #include "qemu/timer.h"
 #include "qemu/bitops.h"