Improve build process and coroutine implementation selection.

common.mk

@@ -924,9 +924,8 @@ strlcpy.$(OBJEXT): {$(VPATH)}strlcpy.c
 strstr.$(OBJEXT): {$(VPATH)}strstr.c
 nt.$(OBJEXT): {$(VPATH)}nt.c
 
-COROUTINE_SRC = $(COROUTINE_H:.h=).$(ASMEXT)
 .coroutine_obj $(COROUTINE_OBJ): \
-	{$(VPATH)}$(COROUTINE_SRC:/ucontext/Context.S=/ucontext/Context.c) \
+	{$(VPATH)}$(COROUTINE_SRC) \
 	$(COROUTINE_H:/Context.h=/.time)
 $(COROUTINE_H:/Context.h=/.time):
 	$(Q) $(MAKEDIRS) $(@D)

configure.ac

@@ -964,7 +964,7 @@ main()
 		AS_IF([test "$target_cpu" = x64], [
 		    ac_cv_func___builtin_setjmp=yes
 		    ac_cv_func_round=no
-		    rb_cv_fiber_coroutine=yes
+		    rb_cv_coroutine=yes
 		])
 		ac_cv_func_tgamma=no
 		rb_cv_negative_time_t=yes
@@ -2251,60 +2251,67 @@ AS_IF([test "${universal_binary-no}" = yes ], [
     AC_DEFINE_UNQUOTED(STACK_GROW_DIRECTION, $dir)
 ])
 
-AC_ARG_ENABLE(fiber-coroutine,
-    AS_HELP_STRING([--disable-fiber-coroutine], [disable native coroutine implementation for fiber]),
-    [rb_cv_fiber_coroutine=$enableval])
-AS_CASE(["$rb_cv_fiber_coroutine"], [yes|''], [
+AC_ARG_WITH(coroutine,
+    AS_HELP_STRING([--with-coroutine=IMPLEMENTATION], [specify the coroutine implementation to use]),
+    [rb_cv_coroutine=$withval])
+AS_CASE([$rb_cv_coroutine], [yes|''], [
     AC_MSG_CHECKING(native coroutine implementation for ${target_cpu}-${target_os})
     AS_CASE(["$target_cpu-$target_os"],
         [x*64-darwin*], [
-            rb_cv_fiber_coroutine=amd64
+            rb_cv_coroutine=amd64
         ],
         [x*64-linux], [
             AS_CASE(["$ac_cv_sizeof_voidp"],
-                [8], [ rb_cv_fiber_coroutine=amd64 ],
-                [4], [ rb_cv_fiber_coroutine=x86 ],
-                [*], [ rb_cv_fiber_coroutine= ]
+                [8], [ rb_cv_coroutine=amd64 ],
+                [4], [ rb_cv_coroutine=x86 ],
+                [*], [ rb_cv_coroutine= ]
             )
         ],
         [*86-linux], [
-            rb_cv_fiber_coroutine=x86
+            rb_cv_coroutine=x86
         ],
         [x64-mingw32], [
-            rb_cv_fiber_coroutine=win64
+            rb_cv_coroutine=win64
         ],
         [*86-mingw32], [
-            rb_cv_fiber_coroutine=win32
+            rb_cv_coroutine=win32
         ],
         [armv7*-linux-*], [
-            rb_cv_fiber_coroutine=ucontext
+            rb_cv_coroutine=ucontext
         ],
         [aarch64-linux], [
-            rb_cv_fiber_coroutine=arm64
+            rb_cv_coroutine=arm64
         ],
         [powerpc64le-linux], [
-            rb_cv_fiber_coroutine=ppc64le
+            rb_cv_coroutine=ppc64le
         ],
         [x86_64-openbsd*], [
-            rb_cv_fiber_coroutine=amd64
+            rb_cv_coroutine=amd64
         ],
         [i386-openbsd*], [
-            rb_cv_fiber_coroutine=x86
+            rb_cv_coroutine=x86
         ],
         [*-openbsd*], [
-            rb_cv_fiber_coroutine=
+            rb_cv_coroutine=copy
         ],
         [*], [
-            rb_cv_fiber_coroutine=ucontext
+            rb_cv_coroutine=ucontext
         ]
     )
-    AC_MSG_RESULT(${rb_cv_fiber_coroutine:-no})
-])
-AS_IF([test "${rb_cv_fiber_coroutine:-no}" != no], [
-    COROUTINE_H=coroutine/$rb_cv_fiber_coroutine/Context.h
-    AC_DEFINE_UNQUOTED(FIBER_USE_COROUTINE, ["$COROUTINE_H"])
-    AC_SUBST(X_FIBER_COROUTINE_H, [$COROUTINE_H])
+    AC_MSG_RESULT(${rb_cv_coroutine})
 ])
+COROUTINE_H=coroutine/$rb_cv_coroutine/Context.h
+AS_CASE([$rb_cv_coroutine],
+    [copy|ucontext], [
+        COROUTINE_SRC=coroutine/$rb_cv_coroutine/Context.c
+    ],
+    [*], [
+        COROUTINE_SRC=coroutine/$rb_cv_coroutine/Context.'$(ASMEXT)'
+    ],
+)
+AC_DEFINE_UNQUOTED(COROUTINE_H, ["$COROUTINE_H"])
+AC_SUBST(X_COROUTINE_H, [$COROUTINE_H])
+AC_SUBST(X_COROUTINE_SRC, [$COROUTINE_SRC])
 
 AS_IF([test x"$enable_pthread" = xyes], [
     for pthread_lib in thr pthread pthreads c c_r root; do
@@ -4009,6 +4016,7 @@ config_summary "vendor path"         "$vendordir"
 config_summary "target OS"           "$target_os"
 config_summary "compiler"            "$CC"
 config_summary "with pthread"        "$enable_pthread"
+config_summary "with coroutine"      "$rb_cv_coroutine"
 config_summary "enable shared libs"  "$ENABLE_SHARED"
 config_summary "dynamic library ext" "$DLEXT"
 config_summary "CFLAGS"              "$cflags"

cont.c

@@ -15,12 +15,7 @@
 #include "eval_intern.h"
 #include "mjit.h"
 
-#ifdef FIBER_USE_COROUTINE
-#include FIBER_USE_COROUTINE
-#else
-// Stack copying implementation, should work everywhere:
-#include "coroutine/copy/Context.h"
-#endif
+#include COROUTINE_H
 
 #ifndef _WIN32
 #include <unistd.h>

template/Makefile.in

@@ -152,8 +152,9 @@ XRUBY_RUBYLIBDIR = @XRUBY_RUBYLIBDIR@
 XRUBY_RUBYHDRDIR = @XRUBY_RUBYHDRDIR@
 BOOTSTRAPRUBY = @BOOTSTRAPRUBY@
 
-COROUTINE_H = @X_FIBER_COROUTINE_H@
+COROUTINE_H = @X_COROUTINE_H@
 COROUTINE_OBJ = $(COROUTINE_H:.h=.@OBJEXT@)
+COROUTINE_SRC = @X_COROUTINE_SRC@
 
 #### End of system configuration section. ####
 

win32/Makefile.sub

@@ -290,19 +290,18 @@ MISSING = $(MISSING) acosh.obj cbrt.obj erf.obj nan.obj tgamma.obj
 MISSING = $(MISSING) explicit_bzero.obj
 !endif
 DLNOBJ = dln.obj
+
 !if "$(ARCH)" == "x64"
-COROUTINE_OBJ = coroutine/Win64/Context.obj
+COROUTINE_OBJ = coroutine/win64/Context.obj
+COROUTINE_SRC = $(COROUTINE_OBJ:.obj=.asm)
 !elseif "$(ARCH)" == "i386"
-COROUTINE_OBJ = coroutine/Win32/Context.obj
+COROUTINE_OBJ = coroutine/win32/Context.obj
+COROUTINE_SRC = $(COROUTINE_OBJ:.obj=.asm)
 !else
-COROUTINE_OBJ =
+COROUTINE_OBJ = coroutine/copy/Context.obj
+COROUTINE_SRC = $(COROUTINE_OBJ:.obj=.c)
 !endif
-!if "$(COROUTINE_OBJ)" == ""
-# get rid of empty value not to leave VPATH only in dependencies
-COROUTINE_H = coroutine/Win32/Context.h
-!else
 COROUTINE_H = $(COROUTINE_OBJ:.obj=.h)
-!endif
 
 ARFLAGS = -machine:$(MACHINE) -out:
 LD = $(CC)
@@ -871,9 +870,7 @@ $(CONFIG_H): $(MKFILES) $(srcdir)/win32/Makefile.sub $(win_srcdir)/Makefile.sub
 !if "$(MACHINE)" == "x86" || "$(ARCH)" == "x64"
 #define STACK_GROW_DIRECTION -1
 !endif
-!if "$(COROUTINE_OBJ)" != ""
-#define FIBER_USE_COROUTINE "$(COROUTINE_H)"
-!endif
+#define COROUTINE_H "$(COROUTINE_H)"
 #define DEFAULT_KCODE KCODE_NONE
 #define LOAD_RELATIVE 1
 #define DLEXT ".so"
@@ -1235,12 +1232,15 @@ $(ruby_pc): $(RBCONFIG)
 		-output=$@ -mode=$(INSTALL_DATA_MODE) -config=rbconfig.rb \
 		$(srcdir)/template/ruby.pc.in
 
-{$(srcdir)/coroutine/Win32}.asm{coroutine/Win32}.obj:
+{$(srcdir)/coroutine/win32}.asm{coroutine/win32}.obj:
 	$(ECHO) assembling $(<:\=/)
 	$(Q) $(AS) $(ASFLAGS) $(XCFLAGS) $(CPPFLAGS) $(COUTFLAG)$@ -c $(<:\=/)
-{$(srcdir)/coroutine/Win64}.asm{coroutine/Win64}.obj:
+{$(srcdir)/coroutine/win64}.asm{coroutine/win64}.obj:
 	$(ECHO) assembling $(<:\=/)
 	$(Q) $(AS) $(ASFLAGS) $(XCFLAGS) $(CPPFLAGS) $(COUTFLAG)$@ -c $(<:\=/)
+{$(srcdir)/coroutine/copy}.c{coroutine/copy}.obj:
+	$(ECHO) compiling $(<:\=/)
+	$(Q) $(CC) $(CFLAGS) $(XCFLAGS) $(CPPFLAGS) $(COUTFLAG)$@ -c $(CSRCFLAG)$(<:\=/)
 
 {$(srcdir)/enc/trans}.c.obj:
 	$(ECHO) compiling $(<:\=/)