include: move os_*() to os-foo.h

For consistency with other os_ functions that do not have POSIX
implementation, declare an inline function for the stub in os-win32.h.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20220323155743.1585078-27-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

include/qemu-common.h

@@ -24,10 +24,6 @@
 int qemu_main(int argc, char **argv, char **envp);
 #endif
 
-/* OS specific functions */
-void os_setup_early_signal_handling(void);
-int os_parse_cmd_args(int index, const char *optarg);
-
 void page_size_init(void);
 
 #endif

include/sysemu/os-posix.h

@@ -42,7 +42,9 @@
 extern "C" {
 #endif
 
+int os_parse_cmd_args(int index, const char *optarg);
 void os_set_line_buffering(void);
+void os_setup_early_signal_handling(void);
 void os_set_proc_name(const char *s);
 void os_setup_signal_handling(void);
 void os_daemonize(void);

include/sysemu/os-win32.h

@@ -62,8 +62,10 @@ struct tm *localtime_r(const time_t *timep, struct tm *result);
 static inline void os_setup_signal_handling(void) {}
 static inline void os_daemonize(void) {}
 static inline void os_setup_post(void) {}
-void os_set_line_buffering(void);
 static inline void os_set_proc_name(const char *dummy) {}
+static inline int os_parse_cmd_args(int index, const char *optarg) { return -1; }
+void os_set_line_buffering(void);
+void os_setup_early_signal_handling(void);
 
 int getpagesize(void);
 

os-win32.c

@@ -61,12 +61,3 @@ void os_set_line_buffering(void)
     setbuf(stdout, NULL);
     setbuf(stderr, NULL);
 }
-
-/*
- * Parse OS specific command line options.
- * return 0 if option handled, -1 otherwise
- */
-int os_parse_cmd_args(int index, const char *optarg)
-{
-    return -1;
-}