[13/37] include/exec: Split out mmap-lock.h

Commit Message

Richard Henderson March 13, 2025, 3:44 a.m. UTC

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

Signed-off-by: Richard Henderson <[e-mail]>
---
 accel/tcg/internal-target.h    |  1 +
 include/exec/mmap-lock.h       | 33 +++++++++++++++++++++++++++++++++
 include/exec/page-protection.h | 22 ----------------------
 accel/tcg/cpu-exec.c           |  1 +
 accel/tcg/tb-maint.c           |  1 +
 accel/tcg/translate-all.c      |  1 +
 linux-user/arm/cpu_loop.c      |  1 +
 linux-user/elfload.c           |  1 +
 linux-user/flatload.c          |  1 +
 linux-user/mmap.c              |  1 +
 linux-user/syscall.c           |  1 +
 target/arm/helper.c            |  1 +
 12 files changed, 43 insertions(+), 22 deletions(-)
 create mode 100644 include/exec/mmap-lock.h

Patch

diff --git a/accel/tcg/internal-target.h b/accel/tcg/internal-target.h
index 2cdf11c905..c88f007ffb 100644
--- a/accel/tcg/internal-target.h
+++ b/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
diff --git a/include/exec/mmap-lock.h b/include/exec/mmap-lock.h
new file mode 100644
index 0000000000..eb02dd409c
--- /dev/null
+++ b/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+
+ */
+#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 */
diff --git a/include/exec/page-protection.h b/include/exec/page-protection.h
index 3e0a8a0333..c43231af8b 100644
--- a/include/exec/page-protection.h
+++ b/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
diff --git a/accel/tcg/cpu-exec.c b/accel/tcg/cpu-exec.c
index ef3d967e3a..372b876604 100644
--- a/accel/tcg/cpu-exec.c
+++ b/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"
diff --git a/accel/tcg/tb-maint.c b/accel/tcg/tb-maint.c
index 3f1bebf6ab..d5899ad047 100644
--- a/accel/tcg/tb-maint.c
+++ b/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"
diff --git a/accel/tcg/translate-all.c b/accel/tcg/translate-all.c
index 82bc16bd53..16e5043597 100644
--- a/accel/tcg/translate-all.c
+++ b/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"
diff --git a/linux-user/arm/cpu_loop.c b/linux-user/arm/cpu_loop.c
index 10d8561f9b..cb6e17e50c 100644
--- a/linux-user/arm/cpu_loop.c
+++ b/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"
 
diff --git a/linux-user/elfload.c b/linux-user/elfload.c
index 8799e4ea27..f54054dce3 100644
--- a/linux-user/elfload.c
+++ b/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"
diff --git a/linux-user/flatload.c b/linux-user/flatload.c
index d5cb1830dd..4beb3ed1b9 100644
--- a/linux-user/flatload.c
+++ b/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"
diff --git a/linux-user/mmap.c b/linux-user/mmap.c
index d1f36e6f16..f88a80c31e 100644
--- a/linux-user/mmap.c
+++ b/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"
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index b32de763f7..4928f0b080 100644
--- a/linux-user/syscall.c
+++ b/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>
diff --git a/target/arm/helper.c b/target/arm/helper.c
index f0ead22937..8316beead3 100644
--- a/target/arm/helper.c
+++ b/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"