build: move TARGET_GPROF to config-host.mak

TARGET_GPROF is the same for all targets, write it to
config-host.mak instead.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: <20200204161104.21077-1-pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

linux-user/exit.c

@@ -18,7 +18,7 @@
  */
 #include "qemu/osdep.h"
 #include "qemu.h"
-#ifdef TARGET_GPROF
+#ifdef CONFIG_GPROF
 #include <sys/gmon.h>
 #endif
 
@@ -28,7 +28,7 @@ extern void __gcov_dump(void);
 
 void preexit_cleanup(CPUArchState *env, int code)
 {
-#ifdef TARGET_GPROF
+#ifdef CONFIG_GPROF
         _mcleanup();
 #endif
 #ifdef CONFIG_GCOV

linux-user/signal.c

@@ -509,7 +509,7 @@ void signal_init(void)
     act.sa_flags = SA_SIGINFO;
     act.sa_sigaction = host_signal_handler;
     for(i = 1; i <= TARGET_NSIG; i++) {
-#ifdef TARGET_GPROF
+#ifdef CONFIG_GPROF
         if (i == SIGPROF) {
             continue;
         }