tcg: Invert the inclusion of helper.h

Rather than include helper.h with N values of GEN_HELPER, include a
secondary file that sets up the macros to include helper.h.  This
minimizes the files that must be rebuilt when changing the macros
for file N.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>

target-mips/dsp_helper.c

@@ -18,7 +18,7 @@
  */
 
 #include "cpu.h"
-#include "helper.h"
+#include "exec/helper-proto.h"
 #include "qemu/bitops.h"
 
 /* As the byte ordering doesn't matter, i.e. all columns are treated

target-mips/helper.h

@@ -1,5 +1,3 @@
-#include "exec/def-helper.h"
-
 DEF_HELPER_3(raise_exception_err, noreturn, env, i32, int)
 DEF_HELPER_2(raise_exception, noreturn, env, i32)
 
@@ -691,7 +689,3 @@ DEF_HELPER_FLAGS_3(dmthlip, 0, void, tl, tl, env)
 #endif
 DEF_HELPER_FLAGS_3(wrdsp, 0, void, tl, tl, env)
 DEF_HELPER_FLAGS_2(rddsp, 0, tl, tl, env)
-
-
-
-#include "exec/def-helper.h"

target-mips/lmi_helper.c

@@ -18,7 +18,7 @@
  */
 
 #include "cpu.h"
-#include "helper.h"
+#include "exec/helper-proto.h"
 
 /* If the byte ordering doesn't matter, i.e. all columns are treated
    identically, then this union can be used directly.  If byte ordering

target-mips/op_helper.c

@@ -20,7 +20,7 @@
 #include "cpu.h"
 #include "qemu/host-utils.h"
 
-#include "helper.h"
+#include "exec/helper-proto.h"
 
 #if !defined(CONFIG_USER_ONLY)
 #include "exec/softmmu_exec.h"

target-mips/translate.c

@@ -25,9 +25,8 @@
 #include "disas/disas.h"
 #include "tcg-op.h"
 
-#include "helper.h"
-#define GEN_HELPER 1
-#include "helper.h"
+#include "exec/helper-proto.h"
+#include "exec/helper-gen.h"
 
 #define MIPS_DEBUG_DISAS 0
 //#define MIPS_DEBUG_SIGN_EXTENSIONS