linux-user: Split mmap prototypes into user-mmap.h

Split out the mmap prototypes into a new header user-mmap.h
which we only include where required.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210908154405.15417-6-peter.maydell@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

linux-user/elfload.c

@@ -7,6 +7,7 @@
 
 #include "qemu.h"
 #include "loader.h"
+#include "user-mmap.h"
 #include "disas/disas.h"
 #include "qemu/bitops.h"
 #include "qemu/path.h"

linux-user/flatload.c

@@ -37,6 +37,7 @@
 
 #include "qemu.h"
 #include "loader.h"
+#include "user-mmap.h"
 #include "flat.h"
 #include "target_flat.h"
 

linux-user/i386/cpu_loop.c

@@ -22,6 +22,7 @@
 #include "qemu.h"
 #include "cpu_loop-common.h"
 #include "signal-common.h"
+#include "user-mmap.h"
 
 /***********************************************************/
 /* CPUX86 core interface */

linux-user/main.c

@@ -51,6 +51,7 @@
 #include "fd-trans.h"
 #include "signal-common.h"
 #include "loader.h"
+#include "user-mmap.h"
 
 #ifndef AT_FLAGS_PRESERVE_ARGV0
 #define AT_FLAGS_PRESERVE_ARGV0_BIT 0

linux-user/mmap.c

@@ -20,6 +20,7 @@
 #include "trace.h"
 #include "exec/log.h"
 #include "qemu.h"
+#include "user-mmap.h"
 
 static pthread_mutex_t mmap_mutex = PTHREAD_MUTEX_INITIALIZER;
 static __thread int mmap_lock_count;

linux-user/qemu.h

@@ -389,20 +389,6 @@ void sparc64_set_context(CPUSPARCState *env);
 void sparc64_get_context(CPUSPARCState *env);
 #endif
 
-/* mmap.c */
-int target_mprotect(abi_ulong start, abi_ulong len, int prot);
-abi_long target_mmap(abi_ulong start, abi_ulong len, int prot,
-                     int flags, int fd, abi_ulong offset);
-int target_munmap(abi_ulong start, abi_ulong len);
-abi_long target_mremap(abi_ulong old_addr, abi_ulong old_size,
-                       abi_ulong new_size, unsigned long flags,
-                       abi_ulong new_addr);
-extern unsigned long last_brk;
-extern abi_ulong mmap_next_start;
-abi_ulong mmap_find_vma(abi_ulong, abi_ulong, abi_ulong);
-void mmap_fork_start(void);
-void mmap_fork_end(int child);
-
 /* user access */
 
 #define VERIFY_READ  PAGE_READ

linux-user/syscall.c

@@ -130,6 +130,7 @@
 #include "strace.h"
 #include "signal-common.h"
 #include "loader.h"
+#include "user-mmap.h"
 #include "qemu/guest-random.h"
 #include "qemu/selfmap.h"
 #include "user/syscall-trace.h"

linux-user/user-mmap.h

@@ -0,0 +1,34 @@
+/*
+ * user-mmap.h: prototypes for linux-user guest binary loader
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program 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 General Public License
+ *  along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef LINUX_USER_USER_MMAP_H
+#define LINUX_USER_USER_MMAP_H
+
+int target_mprotect(abi_ulong start, abi_ulong len, int prot);
+abi_long target_mmap(abi_ulong start, abi_ulong len, int prot,
+                     int flags, int fd, abi_ulong offset);
+int target_munmap(abi_ulong start, abi_ulong len);
+abi_long target_mremap(abi_ulong old_addr, abi_ulong old_size,
+                       abi_ulong new_size, unsigned long flags,
+                       abi_ulong new_addr);
+extern unsigned long last_brk;
+extern abi_ulong mmap_next_start;
+abi_ulong mmap_find_vma(abi_ulong, abi_ulong, abi_ulong);
+void mmap_fork_start(void);
+void mmap_fork_end(int child);
+
+#endif /* LINUX_USER_USER_MMAP_H */