Add a basic gn file for V8

Currently, the gn support is incomplete and only works from within a
chromium checkout.

See https://code.google.com/p/chromium/wiki/gn for details

We move the BUILD.gn file to v8 nevertheless to make renaming files
easier, as the chromium CQ already now checks the gn build.

BUG=none
R=brettw@chromium.org, machenbach@chromium.org
LOG=y

Review URL: https://codereview.chromium.org/259233002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@21140 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUILD.gn

+# Copyright 2014 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+# TODO(jochen): These will need to be user-settable to support standalone V8
+# builds.
+v8_compress_startup_data = "off"
+v8_enable_i18n_support = true
+
+# TODO(jochen): Add support for want_seperate_host_toolset.
+# TODO(jochen): Add support for v8_target_arch.
+# TODO(jochen): Add features.gypi and toolchain.gypi support.
+
+
+###############################################################################
+# Configurations
+#
+config("internal_config") {
+  visibility = ":*"  # Only targets in this file can depend on this.
+
+  include_dirs = [ "src" ]
+
+  if (component_mode == "shared_library") {
+    defines = [
+      "BUILDING_V8_SHARED",
+      "V8_SHARED",
+    ]
+  }
+}
+
+###############################################################################
+# Actions
+#
+
+# TODO(jochen): Do actions need visibility settings as well?
+action("generate_trig_table") {
+  script = "tools/generate-trig-table.py"
+
+  outputs = [
+    "$target_gen_dir/trig-table.cc"
+  ]
+
+  args = rebase_path(outputs, root_build_dir)
+}
+
+action("js2c") {
+  script = "tools/js2c.py"
+
+  # The script depends on this other script, this rule causes a rebuild if it
+  # changes.
+  source_prereqs = [ "tools/jsmin.py" ]
+
+  sources = [
+    "src/runtime.js",
+    "src/v8natives.js",
+    "src/array.js",
+    "src/string.js",
+    "src/uri.js",
+    "src/math.js",
+    "src/messages.js",
+    "src/apinatives.js",
+    "src/debug-debugger.js",
+    "src/mirror-debugger.js",
+    "src/liveedit-debugger.js",
+    "src/date.js",
+    "src/json.js",
+    "src/regexp.js",
+    "src/arraybuffer.js",
+    "src/typedarray.js",
+    "src/object-observe.js",
+    "src/macros.py",
+  ]
+
+  outputs = [
+    "$target_gen_dir/libraries.cc"
+  ]
+
+  if (v8_enable_i18n_support) {
+    sources += [ "src/i18n.js" ]
+  }
+
+  args =
+    rebase_path(outputs, root_build_dir) +
+    [ "EXPERIMENTAL", v8_compress_startup_data ] + 
+    rebase_path(sources, root_build_dir)
+}
+
+action("js2c_experimental") {
+  script = "tools/js2c.py"
+
+  # The script depends on this other script, this rule causes a rebuild if it
+  # changes.
+  source_prereqs = [ "tools/jsmin.py" ]
+
+  sources = [
+    "src/macros.py",
+    "src/symbol.js",
+    "src/proxy.js",
+    "src/collection.js",
+    "src/weak_collection.js",
+    "src/promise.js",
+    "src/generator.js",
+    "src/array-iterator.js",
+    "src/harmony-string.js",
+    "src/harmony-array.js",
+    "src/harmony-math.js",
+  ]
+
+  outputs = [
+    "$target_gen_dir/experimental-libraries.cc"
+  ]
+
+  args =
+    rebase_path(outputs, root_build_dir) +
+    [ "CORE", v8_compress_startup_data ] + 
+    rebase_path(sources, root_build_dir)
+}
+
+action("postmortem-metadata") {
+  script = "tools/gen-postmortem-metadata.py"
+
+  sources = [
+    "src/objects.h",
+    "src/objects-inl.h",
+  ]
+
+  outputs = [
+    "$target_gen_dir/debug-support.cc"
+  ]
+
+  args =
+    rebase_path(outputs, root_build_dir) +
+    rebase_path(sources, root_build_dir)
+}
+
+###############################################################################
+# Source Sets (aka static libraries)
+#
+
+source_set("v8_nosnapshot") {
+  visibility = ":*"  # Only targets in this file can depend on this.
+
+  deps = [
+    ":js2c",
+    ":js2c_experimental",
+    ":generate_trig_table",
+    ":v8_base",
+  ]
+
+  sources = [
+    "$target_gen_dir/libraries.cc",
+    "$target_gen_dir/experimental-libraries.cc",
+    "$target_gen_dir/trig-table.cc",
+    "src/snapshot-empty.cc",
+  ]
+
+  configs += [ ":internal_config" ]
+}
+
+source_set("v8_base") {
+  visibility = ":*"  # Only targets in this file can depend on this.
+
+  sources = [
+    "src/accessors.cc",
+    "src/accessors.h",
+    "src/allocation.cc",
+    "src/allocation.h",
+    "src/allocation-site-scopes.cc",
+    "src/allocation-site-scopes.h",
+    "src/allocation-tracker.cc",
+    "src/allocation-tracker.h",
+    "src/api.cc",
+    "src/api.h",
+    "src/arguments.cc",
+    "src/arguments.h",
+    "src/assembler.cc",
+    "src/assembler.h",
+    "src/assert-scope.h",
+    "src/assert-scope.cc",
+    "src/ast.cc",
+    "src/ast.h",
+    "src/atomicops.h",
+    "src/atomicops_internals_x86_gcc.cc",
+    "src/bignum-dtoa.cc",
+    "src/bignum-dtoa.h",
+    "src/bignum.cc",
+    "src/bignum.h",
+    "src/bootstrapper.cc",
+    "src/bootstrapper.h",
+    "src/builtins.cc",
+    "src/builtins.h",
+    "src/bytecodes-irregexp.h",
+    "src/cached-powers.cc",
+    "src/cached-powers.h",
+    "src/char-predicates-inl.h",
+    "src/char-predicates.h",
+    "src/checks.cc",
+    "src/checks.h",
+    "src/circular-queue-inl.h",
+    "src/circular-queue.h",
+    "src/code-stubs.cc",
+    "src/code-stubs.h",
+    "src/code-stubs-hydrogen.cc",
+    "src/code.h",
+    "src/codegen.cc",
+    "src/codegen.h",
+    "src/compilation-cache.cc",
+    "src/compilation-cache.h",
+    "src/compiler.cc",
+    "src/compiler.h",
+    "src/contexts.cc",
+    "src/contexts.h",
+    "src/conversions-inl.h",
+    "src/conversions.cc",
+    "src/conversions.h",
+    "src/counters.cc",
+    "src/counters.h",
+    "src/cpu-profiler-inl.h",
+    "src/cpu-profiler.cc",
+    "src/cpu-profiler.h",
+    "src/cpu.cc",
+    "src/cpu.h",
+    "src/data-flow.cc",
+    "src/data-flow.h",
+    "src/date.cc",
+    "src/date.h",
+    "src/dateparser-inl.h",
+    "src/dateparser.cc",
+    "src/dateparser.h",
+    "src/debug-agent.cc",
+    "src/debug-agent.h",
+    "src/debug.cc",
+    "src/debug.h",
+    "src/deoptimizer.cc",
+    "src/deoptimizer.h",
+    "src/disasm.h",
+    "src/disassembler.cc",
+    "src/disassembler.h",
+    "src/diy-fp.cc",
+    "src/diy-fp.h",
+    "src/double.h",
+    "src/dtoa.cc",
+    "src/dtoa.h",
+    "src/effects.h",
+    "src/elements-kind.cc",
+    "src/elements-kind.h",
+    "src/elements.cc",
+    "src/elements.h",
+    "src/execution.cc",
+    "src/execution.h",
+    "src/extensions/externalize-string-extension.cc",
+    "src/extensions/externalize-string-extension.h",
+    "src/extensions/free-buffer-extension.cc",
+    "src/extensions/free-buffer-extension.h",
+    "src/extensions/gc-extension.cc",
+    "src/extensions/gc-extension.h",
+    "src/extensions/statistics-extension.cc",
+    "src/extensions/statistics-extension.h",
+    "src/extensions/trigger-failure-extension.cc",
+    "src/extensions/trigger-failure-extension.h",
+    "src/factory.cc",
+    "src/factory.h",
+    "src/fast-dtoa.cc",
+    "src/fast-dtoa.h",
+    "src/feedback-slots.h",
+    "src/fixed-dtoa.cc",
+    "src/fixed-dtoa.h",
+    "src/flag-definitions.h",
+    "src/flags.cc",
+    "src/flags.h",
+    "src/frames-inl.h",
+    "src/frames.cc",
+    "src/frames.h",
+    "src/full-codegen.cc",
+    "src/full-codegen.h",
+    "src/func-name-inferrer.cc",
+    "src/func-name-inferrer.h",
+    "src/gdb-jit.cc",
+    "src/gdb-jit.h",
+    "src/global-handles.cc",
+    "src/global-handles.h",
+    "src/globals.h",
+    "src/handles-inl.h",
+    "src/handles.cc",
+    "src/handles.h",
+    "src/hashmap.h",
+    "src/heap-inl.h",
+    "src/heap-profiler.cc",
+    "src/heap-profiler.h",
+    "src/heap-snapshot-generator-inl.h",
+    "src/heap-snapshot-generator.cc",
+    "src/heap-snapshot-generator.h",
+    "src/heap.cc",
+    "src/heap.h",
+    "src/hydrogen-alias-analysis.h",
+    "src/hydrogen-bce.cc",
+    "src/hydrogen-bce.h",
+    "src/hydrogen-bch.cc",
+    "src/hydrogen-bch.h",
+    "src/hydrogen-canonicalize.cc",
+    "src/hydrogen-canonicalize.h",
+    "src/hydrogen-check-elimination.cc",
+    "src/hydrogen-check-elimination.h",
+    "src/hydrogen-dce.cc",
+    "src/hydrogen-dce.h",
+    "src/hydrogen-dehoist.cc",
+    "src/hydrogen-dehoist.h",
+    "src/hydrogen-environment-liveness.cc",
+    "src/hydrogen-environment-liveness.h",
+    "src/hydrogen-escape-analysis.cc",
+    "src/hydrogen-escape-analysis.h",
+    "src/hydrogen-flow-engine.h",
+    "src/hydrogen-instructions.cc",
+    "src/hydrogen-instructions.h",
+    "src/hydrogen.cc",
+    "src/hydrogen.h",
+    "src/hydrogen-gvn.cc",
+    "src/hydrogen-gvn.h",
+    "src/hydrogen-infer-representation.cc",
+    "src/hydrogen-infer-representation.h",
+    "src/hydrogen-infer-types.cc",
+    "src/hydrogen-infer-types.h",
+    "src/hydrogen-load-elimination.cc",
+    "src/hydrogen-load-elimination.h",
+    "src/hydrogen-mark-deoptimize.cc",
+    "src/hydrogen-mark-deoptimize.h",
+    "src/hydrogen-mark-unreachable.cc",
+    "src/hydrogen-mark-unreachable.h",
+    "src/hydrogen-osr.cc",
+    "src/hydrogen-osr.h",
+    "src/hydrogen-range-analysis.cc",
+    "src/hydrogen-range-analysis.h",
+    "src/hydrogen-redundant-phi.cc",
+    "src/hydrogen-redundant-phi.h",
+    "src/hydrogen-removable-simulates.cc",
+    "src/hydrogen-removable-simulates.h",
+    "src/hydrogen-representation-changes.cc",
+    "src/hydrogen-representation-changes.h",
+    "src/hydrogen-sce.cc",
+    "src/hydrogen-sce.h",
+    "src/hydrogen-store-elimination.cc",
+    "src/hydrogen-store-elimination.h",
+    "src/hydrogen-uint32-analysis.cc",
+    "src/hydrogen-uint32-analysis.h",
+    "src/i18n.cc",
+    "src/i18n.h",
+    "src/icu_util.cc",
+    "src/icu_util.h",
+    "src/ic-inl.h",
+    "src/ic.cc",
+    "src/ic.h",
+    "src/incremental-marking.cc",
+    "src/incremental-marking.h",
+    "src/interface.cc",
+    "src/interface.h",
+    "src/interpreter-irregexp.cc",
+    "src/interpreter-irregexp.h",
+    "src/isolate.cc",
+    "src/isolate.h",
+    "src/json-parser.h",
+    "src/json-stringifier.h",
+    "src/jsregexp-inl.h",
+    "src/jsregexp.cc",
+    "src/jsregexp.h",
+    "src/lazy-instance.h",
+    # TODO(jochen): move libplatform/ files to their own target.
+    "src/libplatform/default-platform.cc",
+    "src/libplatform/default-platform.h",
+    "src/libplatform/task-queue.cc",
+    "src/libplatform/task-queue.h",
+    "src/libplatform/worker-thread.cc",
+    "src/libplatform/worker-thread.h",
+    "src/list-inl.h",
+    "src/list.h",
+    "src/lithium-allocator-inl.h",
+    "src/lithium-allocator.cc",
+    "src/lithium-allocator.h",
+    "src/lithium-codegen.cc",
+    "src/lithium-codegen.h",
+    "src/lithium.cc",
+    "src/lithium.h",
+    "src/liveedit.cc",
+    "src/liveedit.h",
+    "src/log-inl.h",
+    "src/log-utils.cc",
+    "src/log-utils.h",
+    "src/log.cc",
+    "src/log.h",
+    "src/macro-assembler.h",
+    "src/mark-compact.cc",
+    "src/mark-compact.h",
+    "src/messages.cc",
+    "src/messages.h",
+    "src/msan.h",
+    "src/natives.h",
+    "src/objects-debug.cc",
+    "src/objects-inl.h",
+    "src/objects-printer.cc",
+    "src/objects-visiting.cc",
+    "src/objects-visiting.h",
+    "src/objects.cc",
+    "src/objects.h",
+    "src/once.cc",
+    "src/once.h",
+    "src/optimizing-compiler-thread.h",
+    "src/optimizing-compiler-thread.cc",
+    "src/parser.cc",
+    "src/parser.h",
+    "src/platform/elapsed-timer.h",
+    "src/platform/time.cc",
+    "src/platform/time.h",
+    "src/platform.h",
+    "src/platform/condition-variable.cc",
+    "src/platform/condition-variable.h",
+    "src/platform/mutex.cc",
+    "src/platform/mutex.h",
+    "src/platform/semaphore.cc",
+    "src/platform/semaphore.h",
+    "src/platform/socket.cc",
+    "src/platform/socket.h",
+    "src/preparse-data-format.h",
+    "src/preparse-data.cc",
+    "src/preparse-data.h",
+    "src/preparser.cc",
+    "src/preparser.h",
+    "src/prettyprinter.cc",
+    "src/prettyprinter.h",
+    "src/profile-generator-inl.h",
+    "src/profile-generator.cc",
+    "src/profile-generator.h",
+    "src/property-details.h",
+    "src/property.cc",
+    "src/property.h",
+    "src/regexp-macro-assembler-irregexp-inl.h",
+    "src/regexp-macro-assembler-irregexp.cc",
+    "src/regexp-macro-assembler-irregexp.h",
+    "src/regexp-macro-assembler-tracer.cc",
+    "src/regexp-macro-assembler-tracer.h",
+    "src/regexp-macro-assembler.cc",
+    "src/regexp-macro-assembler.h",
+    "src/regexp-stack.cc",
+    "src/regexp-stack.h",
+    "src/rewriter.cc",
+    "src/rewriter.h",
+    "src/runtime-profiler.cc",
+    "src/runtime-profiler.h",
+    "src/runtime.cc",
+    "src/runtime.h",
+    "src/safepoint-table.cc",
+    "src/safepoint-table.h",
+    "src/sampler.cc",
+    "src/sampler.h",
+    "src/scanner-character-streams.cc",
+    "src/scanner-character-streams.h",
+    "src/scanner.cc",
+    "src/scanner.h",
+    "src/scopeinfo.cc",
+    "src/scopeinfo.h",
+    "src/scopes.cc",
+    "src/scopes.h",
+    "src/serialize.cc",
+    "src/serialize.h",
+    "src/small-pointer-list.h",
+    "src/smart-pointers.h",
+    "src/snapshot-common.cc",
+    "src/snapshot.h",
+    "src/spaces-inl.h",
+    "src/spaces.cc",
+    "src/spaces.h",
+    "src/store-buffer-inl.h",
+    "src/store-buffer.cc",
+    "src/store-buffer.h",
+    "src/string-search.cc",
+    "src/string-search.h",
+    "src/string-stream.cc",
+    "src/string-stream.h",
+    "src/strtod.cc",
+    "src/strtod.h",
+    "src/stub-cache.cc",
+    "src/stub-cache.h",
+    "src/sweeper-thread.h",
+    "src/sweeper-thread.cc",
+    "src/token.cc",
+    "src/token.h",
+    "src/transitions-inl.h",
+    "src/transitions.cc",
+    "src/transitions.h",
+    "src/type-info.cc",
+    "src/type-info.h",
+    "src/types-inl.h",
+    "src/types.cc",
+    "src/types.h",
+    "src/typing.cc",
+    "src/typing.h",
+    "src/unbound-queue-inl.h",
+    "src/unbound-queue.h",
+    "src/unicode-inl.h",
+    "src/unicode.cc",
+    "src/unicode.h",
+    "src/unique.h",
+    "src/uri.h",
+    "src/utils-inl.h",
+    "src/utils.cc",
+    "src/utils.h",
+    "src/utils/random-number-generator.cc",
+    "src/utils/random-number-generator.h",
+    "src/v8-counters.cc",
+    "src/v8-counters.h",
+    "src/v8.cc",
+    "src/v8.h",
+    "src/v8checks.h",
+    "src/v8globals.h",
+    "src/v8memory.h",
+    "src/v8threads.cc",
+    "src/v8threads.h",
+    "src/variables.cc",
+    "src/variables.h",
+    "src/version.cc",
+    "src/version.h",
+    "src/vm-state-inl.h",
+    "src/vm-state.h",
+    "src/zone-inl.h",
+    "src/zone.cc",
+    "src/zone.h",
+  ]
+
+  if (cpu_arch == "x86") {
+    # TODO(brettw) the GYP file has
+    #   or v8_target_arch=="mac" or OS=="mac"
+    # which I don't understand.
+    sources += [
+      "src/ia32/assembler-ia32-inl.h",
+      "src/ia32/assembler-ia32.cc",
+      "src/ia32/assembler-ia32.h",
+      "src/ia32/builtins-ia32.cc",
+      "src/ia32/code-stubs-ia32.cc",
+      "src/ia32/code-stubs-ia32.h",
+      "src/ia32/codegen-ia32.cc",
+      "src/ia32/codegen-ia32.h",
+      "src/ia32/cpu-ia32.cc",
+      "src/ia32/debug-ia32.cc",
+      "src/ia32/deoptimizer-ia32.cc",
+      "src/ia32/disasm-ia32.cc",
+      "src/ia32/frames-ia32.cc",
+      "src/ia32/frames-ia32.h",
+      "src/ia32/full-codegen-ia32.cc",
+      "src/ia32/ic-ia32.cc",
+      "src/ia32/lithium-codegen-ia32.cc",
+      "src/ia32/lithium-codegen-ia32.h",
+      "src/ia32/lithium-gap-resolver-ia32.cc",
+      "src/ia32/lithium-gap-resolver-ia32.h",
+      "src/ia32/lithium-ia32.cc",
+      "src/ia32/lithium-ia32.h",
+      "src/ia32/macro-assembler-ia32.cc",
+      "src/ia32/macro-assembler-ia32.h",
+      "src/ia32/regexp-macro-assembler-ia32.cc",
+      "src/ia32/regexp-macro-assembler-ia32.h",
+      "src/ia32/stub-cache-ia32.cc",
+    ]
+  } else if (cpu_arch == "x64") {
+    sources += [
+      "src/x64/assembler-x64-inl.h",
+      "src/x64/assembler-x64.cc",
+      "src/x64/assembler-x64.h",
+      "src/x64/builtins-x64.cc",
+      "src/x64/code-stubs-x64.cc",
+      "src/x64/code-stubs-x64.h",
+      "src/x64/codegen-x64.cc",
+      "src/x64/codegen-x64.h",
+      "src/x64/cpu-x64.cc",
+      "src/x64/debug-x64.cc",
+      "src/x64/deoptimizer-x64.cc",
+      "src/x64/disasm-x64.cc",
+      "src/x64/frames-x64.cc",
+      "src/x64/frames-x64.h",
+      "src/x64/full-codegen-x64.cc",
+      "src/x64/ic-x64.cc",
+      "src/x64/lithium-codegen-x64.cc",
+      "src/x64/lithium-codegen-x64.h",
+      "src/x64/lithium-gap-resolver-x64.cc",
+      "src/x64/lithium-gap-resolver-x64.h",
+      "src/x64/lithium-x64.cc",
+      "src/x64/lithium-x64.h",
+      "src/x64/macro-assembler-x64.cc",
+      "src/x64/macro-assembler-x64.h",
+      "src/x64/regexp-macro-assembler-x64.cc",
+      "src/x64/regexp-macro-assembler-x64.h",
+      "src/x64/stub-cache-x64.cc",
+    ]
+  } else if (cpu_arch == "arm") {
+    sources += [
+      "src/arm/assembler-arm-inl.h",
+      "src/arm/assembler-arm.cc",
+      "src/arm/assembler-arm.h",
+      "src/arm/builtins-arm.cc",
+      "src/arm/code-stubs-arm.cc",
+      "src/arm/code-stubs-arm.h",
+      "src/arm/codegen-arm.cc",
+      "src/arm/codegen-arm.h",
+      "src/arm/constants-arm.h",
+      "src/arm/constants-arm.cc",
+      "src/arm/cpu-arm.cc",
+      "src/arm/debug-arm.cc",
+      "src/arm/deoptimizer-arm.cc",
+      "src/arm/disasm-arm.cc",
+      "src/arm/frames-arm.cc",
+      "src/arm/frames-arm.h",
+      "src/arm/full-codegen-arm.cc",
+      "src/arm/ic-arm.cc",
+      "src/arm/lithium-arm.cc",
+      "src/arm/lithium-arm.h",
+      "src/arm/lithium-codegen-arm.cc",
+      "src/arm/lithium-codegen-arm.h",
+      "src/arm/lithium-gap-resolver-arm.cc",
+      "src/arm/lithium-gap-resolver-arm.h",
+      "src/arm/macro-assembler-arm.cc",
+      "src/arm/macro-assembler-arm.h",
+      "src/arm/regexp-macro-assembler-arm.cc",
+      "src/arm/regexp-macro-assembler-arm.h",
+      "src/arm/simulator-arm.cc",
+      "src/arm/stub-cache-arm.cc",
+    ]
+  } else if (cpu_arch == "arm64") {
+    sources += [
+      "src/arm64/assembler-arm64.cc",
+      "src/arm64/assembler-arm64.h",
+      "src/arm64/assembler-arm64-inl.h",
+      "src/arm64/builtins-arm64.cc",
+      "src/arm64/codegen-arm64.cc",
+      "src/arm64/codegen-arm64.h",
+      "src/arm64/code-stubs-arm64.cc",
+      "src/arm64/code-stubs-arm64.h",
+      "src/arm64/constants-arm64.h",
+      "src/arm64/cpu-arm64.cc",
+      "src/arm64/cpu-arm64.h",
+      "src/arm64/debug-arm64.cc",
+      "src/arm64/decoder-arm64.cc",
+      "src/arm64/decoder-arm64.h",
+      "src/arm64/decoder-arm64-inl.h",
+      "src/arm64/deoptimizer-arm64.cc",
+      "src/arm64/disasm-arm64.cc",
+      "src/arm64/disasm-arm64.h",
+      "src/arm64/frames-arm64.cc",
+      "src/arm64/frames-arm64.h",
+      "src/arm64/full-codegen-arm64.cc",
+      "src/arm64/ic-arm64.cc",
+      "src/arm64/instructions-arm64.cc",
+      "src/arm64/instructions-arm64.h",
+      "src/arm64/instrument-arm64.cc",
+      "src/arm64/instrument-arm64.h",
+      "src/arm64/lithium-arm64.cc",
+      "src/arm64/lithium-arm64.h",
+      "src/arm64/lithium-codegen-arm64.cc",
+      "src/arm64/lithium-codegen-arm64.h",
+      "src/arm64/lithium-gap-resolver-arm64.cc",
+      "src/arm64/lithium-gap-resolver-arm64.h",
+      "src/arm64/macro-assembler-arm64.cc",
+      "src/arm64/macro-assembler-arm64.h",
+      "src/arm64/macro-assembler-arm64-inl.h",
+      "src/arm64/regexp-macro-assembler-arm64.cc",
+      "src/arm64/regexp-macro-assembler-arm64.h",
+      "src/arm64/simulator-arm64.cc",
+      "src/arm64/simulator-arm64.h",
+      "src/arm64/stub-cache-arm64.cc",
+      "src/arm64/utils-arm64.cc",
+      "src/arm64/utils-arm64.h",
+    ]
+  } else if (cpu_arch == "mipsel") {
+    sources += [
+      "src/mips/assembler-mips.cc",
+      "src/mips/assembler-mips.h",
+      "src/mips/assembler-mips-inl.h",
+      "src/mips/builtins-mips.cc",
+      "src/mips/codegen-mips.cc",
+      "src/mips/codegen-mips.h",
+      "src/mips/code-stubs-mips.cc",
+      "src/mips/code-stubs-mips.h",
+      "src/mips/constants-mips.cc",
+      "src/mips/constants-mips.h",
+      "src/mips/cpu-mips.cc",
+      "src/mips/debug-mips.cc",
+      "src/mips/deoptimizer-mips.cc",
+      "src/mips/disasm-mips.cc",
+      "src/mips/frames-mips.cc",
+      "src/mips/frames-mips.h",
+      "src/mips/full-codegen-mips.cc",
+      "src/mips/ic-mips.cc",
+      "src/mips/lithium-codegen-mips.cc",
+      "src/mips/lithium-codegen-mips.h",
+      "src/mips/lithium-gap-resolver-mips.cc",
+      "src/mips/lithium-gap-resolver-mips.h",
+      "src/mips/lithium-mips.cc",
+      "src/mips/lithium-mips.h",
+      "src/mips/macro-assembler-mips.cc",
+      "src/mips/macro-assembler-mips.h",
+      "src/mips/regexp-macro-assembler-mips.cc",
+      "src/mips/regexp-macro-assembler-mips.h",
+      "src/mips/simulator-mips.cc",
+      "src/mips/stub-cache-mips.cc",
+    ]
+  }
+
+  configs += [ ":internal_config" ]
+
+  defines = []
+  deps = []
+
+  if (is_posix) {
+    sources += [
+      "src/platform-posix.cc"
+    ]
+  }
+
+  if (is_linux) {
+    sources += [
+      "src/platform-linux.cc"
+    ]
+
+    # TODO(brettw)
+    # 'conditions': [
+    #  ['v8_compress_startup_data=="bz2"', {
+    #    'libraries': [
+    #      '-lbz2',
+    #    ]
+    #   }],
+    # ],
+
+    libs = [ "rt" ]
+  } else if (is_android) {
+    # TODO(brettw) OS=="android" condition from tools/gyp/v8.gyp
+  } else if (is_mac) {
+    sources += [ "src/platform-macos,cc" ]
+  } else if (is_win) {
+    sources += [
+      "src/platform-win32.cc",
+      "src/win32-math.cc",
+      "src/win32-math.h",
+    ]
+
+    defines += [ "_CRT_RAND_S" ]  # for rand_s()
+
+    libs = [ "winmm.lib", "ws2_32.lib" ]
+  }
+
+
+  if (v8_enable_i18n_support) {
+    deps += [ "//third_party/icu" ]
+    if (is_win) {
+      deps += [ "//third_party/icu:icudata" ]
+    }
+  } else {
+    sources -= [
+      "src/i18n.cc",
+      "src/i18n.h",
+    ]
+  }
+
+  # TODO(brettw) other conditions from v8.gyp
+  # TODO(brettw) icu_use_data_file_flag
+}
+
+###############################################################################
+# Executables
+#
+
+# TODO(jochen): Remove this as soon as toolchain.gypi is integrated.
+if (build_cpu_arch != cpu_arch) {
+
+executable("mksnapshot") {
+  sources = [
+  ]
+}
+
+} else {
+
+executable("mksnapshot") {
+  sources = [
+    "src/mksnapshot.cc",
+  ]
+
+  configs += [ ":internal_config" ]
+
+  deps = [
+    ":v8_base",
+    ":v8_nosnapshot",
+  ]
+
+  if (v8_compress_startup_data == "bz2") {
+    libs = [ "bz2" ]
+  }
+}
+
+}