Use same blob format for internal and external snapshots.

Makefile

 # Copyright 2012 the V8 project authors. All rights reserved.
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 #       notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
 #       copyright notice, this list of conditions and the following
 #       disclaimer in the documentation and/or other materials provided
@@ skipping 21 matching lines @@
 OUTDIR ?= out
 TESTJOBS ?=
 GYPFLAGS ?=
 TESTFLAGS ?=
 ANDROID_NDK_ROOT ?=
 ANDROID_NDK_HOST_ARCH ?=
 ANDROID_TOOLCHAIN ?=
 ANDROID_V8 ?= /data/local/tmp/v8
 NACL_SDK_ROOT ?=
 
+GYPFLAGS += -Dv8_use_external_startup_data=1

[vogelheim1, 2014/12/09 13:26:50]

This looks like a rather surprising difference between Makefile and gyp or GN.
Not sure that's a good idea....

[Yang, 2014/12/09 14:40:37]

Thanks for catching this. I added this line for testing only. I changed this now
so that we can use snapshot=external as make option.

+
 # Special build flags. Use them like this: "make library=shared"
 
 # library=shared || component=shared_library
 ifeq ($(library), shared)
   GYPFLAGS += -Dcomponent=shared_library
 endif
 ifdef component
   GYPFLAGS += -Dcomponent=$(component)
 endif
 # console=readline
@@ skipping 427 matching lines @@
 # We need to manually set the stack limit here, to work around bugs in
 # gmake-3.81 and global-5.7.1 on recent 64-bit Linux systems.
 GPATH GRTAGS GSYMS GTAGS: gtags.files $(shell cat gtags.files 2> /dev/null)
         @bash -c 'ulimit -s 10240 && GTAGSFORCECPP=yes gtags -i -q -f $<'
 
 gtags.clean:
         rm -f gtags.files GPATH GRTAGS GSYMS GTAGS
 
 dependencies builddeps:
         $(error Use 'gclient sync' instead)