#!/usr/bin/env python
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import os
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import subprocess
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import sys
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from antlr4 import *
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from gnparser.gnLexer import gnLexer
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from gnparser.gnParser import gnParser
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from gnparser.gnListener import gnListener
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from string import Template
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DBG = False
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# Reformat the specified Android.bp file
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def _bpFmt(filename):
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## NOTE: bpfmt does not set error code even when the bp file is illegal.
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print subprocess.check_output(["bpfmt", "-w", filename])
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def _bpList(entries):
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return '[' + ",".join(['"' + x + '"' for x in entries]) + ']'
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# Write an Android.bp in the simpler format used by v8_libplatform and
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# v8_libsampler
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def _writeBP(filename, module_name, sources):
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if not sources:
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raise ValueError('No sources for ' + filename)
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with open(filename, 'w') as out:
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out.write(Template('''
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// GENERATED, do not edit
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// for changes, see genmakefiles.py
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cc_library_static {
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name: "$module_name",
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defaults: ["v8_defaults"],
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srcs: $srcs,
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local_include_dirs: ["src", "include"],
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}
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''').substitute({'module_name': module_name, 'srcs' : _bpList(sorted(sources))}))
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_bpFmt(filename)
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def _writeV8SrcBP(getSourcesFunc):
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sources = getSourcesFunc(None)
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if not sources:
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raise ValueError('Must specify v8_base target properties')
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sources.add('src/setup-isolate-full.cc')
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# sources.add('src/builtins/setup-builtins-internal.cc')
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# sources.add('src/interpreter/setup-interpreter-internal.cc')
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arm_src = list(getSourcesFunc('arm') - sources)
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arm64_src = list(getSourcesFunc('arm64') - sources)
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x86_src = list(getSourcesFunc('x86') - sources)
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x86_64_src = list(getSourcesFunc('x64') - sources)
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mips_src = list(getSourcesFunc('mips') - sources)
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mips64_src = list(getSourcesFunc('mips64') - sources)
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filename = 'Android.v8.bp'
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with open(filename, 'w') as out:
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out.write(Template('''
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// GENERATED, do not edit
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// for changes, see genmakefiles.py
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cc_library_static {
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name: "libv8src",
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defaults: ["v8_defaults"],
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srcs: $srcs,
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arch: {
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arm: {
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srcs: $arm_src,
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},
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arm64: {
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srcs: $arm64_src,
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},
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mips: {
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srcs: $mips_src,
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},
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mips64: {
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srcs: $mips64_src,
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},
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x86: {
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srcs: $x86_src,
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},
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x86_64: {
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srcs: $x86_64_src,
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},
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},
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target: {
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android: {
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cflags: ["-DANDROID_LINK_SHARED_ICU4C"],
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},
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},
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local_include_dirs: ["src"],
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header_libs: ["libicuuc_headers", "libicui18n_headers"],
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generated_headers: ["v8_torque_file"],
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generated_sources: ["v8_torque_file_cc"],
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}
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''').substitute({'srcs': _bpList(sorted(sources)),
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'arm_src': _bpList(sorted(arm_src)),
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'arm64_src': _bpList(sorted(arm64_src)),
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'mips_src': _bpList(sorted(mips_src)),
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'mips64_src': _bpList(sorted(mips64_src)),
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'x86_src': _bpList(sorted(x86_src)),
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'x86_64_src': _bpList(sorted(x86_64_src)),
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}))
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_bpFmt(filename)
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def _writeGeneratedFilesBP(sources):
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if not sources:
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raise ValueError('Must specify j2sc target properties')
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filename = 'Android.v8gen.bp'
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with open(filename, 'w') as out:
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out.write(Template('''
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// GENERATED, do not edit
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// for changes, see genmakefiles.py
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filegroup {
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name: "v8_js_lib_files",
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srcs: $srcs,
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}
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''').substitute({'srcs' : _bpList(sources)})) ## Not sorted intentionally
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_bpFmt(filename)
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def _writeLibBaseBP(sources):
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if not sources:
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raise ValueError('Must specify v8_libbase target properties')
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filename = 'Android.base.bp'
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with open(filename, 'w') as out:
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out.write(Template('''
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// GENERATED, do not edit
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// for changes, see genmakefiles.py
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cc_library_static {
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name: "libv8base",
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defaults: ["v8_defaults"],
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host_supported: true,
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srcs: $srcs,
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local_include_dirs: ["src"],
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target: {
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android: {
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srcs: ["src/base/debug/stack_trace_android.cc"],
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},
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linux: {
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srcs: ["src/base/platform/platform-linux.cc"],
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},
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host: {
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srcs: ["src/base/debug/stack_trace_posix.cc"],
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cflags: ["-UANDROID"],
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},
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darwin: {
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srcs: ["src/base/platform/platform-macos.cc"],
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},
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},
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}
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''').substitute({'srcs' : _bpList(sorted(sources))}))
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_bpFmt(filename)
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def _expr_to_str(expr):
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val = expr.unaryexpr().primaryexpr()
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if val.String():
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return val.String().getText()[1:-1] ## Strip quotation marks around string
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elif val.Identifier():
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return val.Identifier().getText()
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else:
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if DBG: print 'WARN: unhandled primary expression'
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return None
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class V8GnListener(gnListener):
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def __init__(self, target, arch, only_cc_files):
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super(gnListener, self).__init__()
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self._match = False
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self._depth = 0
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self._target = target
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self._arch = arch
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self._sources = []
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self._fixed_conditions = {
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'use_jumbo_build' : True,
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'use_jumbo_build==true' : True,
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'is_win' : False,
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'is_linux' : False,
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'v8_postmortem_support' : False,
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'v8_enable_i18n_support': True,
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'!v8_enable_i18n_support': False,
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'current_os!="aix"' : True,
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'is_posix||is_fuchsia' : True,
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'v8_current_cpu=="arm"' : arch == 'arm',
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'v8_current_cpu=="arm64"' : arch == 'arm64',
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'v8_current_cpu=="x86"' : arch == 'x86',
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'v8_current_cpu=="x64"' : arch == 'x64',
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'v8_current_cpu=="mips"||v8_current_cpu=="mipsel"' : arch == 'mips',
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'v8_current_cpu=="mips64"||v8_current_cpu=="mips64el"' : arch == 'mips64',
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'v8_current_cpu=="ppc"||v8_current_cpu=="ppc64"' : False,
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'v8_current_cpu=="s390"||v8_current_cpu=="s390x"' : False,
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}
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self._only_cc_files = only_cc_files
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def _match_call_target(self, ctx):
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call_type = ctx.Identifier().getText()
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if not call_type in ['v8_source_set', 'v8_component', 'action']: return False
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call_name = _expr_to_str(ctx.exprlist().expr(0))
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return call_name == self._target
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def enterCall(self, ctx):
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if self._depth == 1 and self._match_call_target(ctx):
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self._match = True
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self._conditions = [] ## [(value, condition), ...]
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if DBG: print 'Found call', str(ctx.Identifier()), ctx.exprlist().getText()
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def exitCall(self, ctx):
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if self._match and self._match_call_target(ctx):
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self._match = False
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self._conditions = []
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if DBG: print 'Left call'
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def _extract_sources(self, ctx):
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op = ctx.AssignOp().getText()
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if not ctx.expr().unaryexpr().primaryexpr().exprlist():
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## sources += check_header_includes_sources
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return
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srcs = map(_expr_to_str, ctx.expr().unaryexpr().primaryexpr().exprlist().expr())
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if self._only_cc_files:
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srcs = [x for x in srcs if x.endswith('.cc')]
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if DBG: print '_extract_sources: ', len(srcs), "condition:", self._conditions
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if op == '=':
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if self._sources:
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print "WARN: override sources"
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self._sources = srcs
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elif op == '+=':
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self._sources.extend(srcs)
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def _compute_condition(self, ctx):
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condition = ctx.expr().getText()
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if DBG: print '_extract_condition', condition
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if condition in self._fixed_conditions:
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result = self._fixed_conditions[condition]
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else:
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print 'WARN: unknown condition, assume False', condition
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self._fixed_conditions[condition] = False
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result = False
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if DBG: print 'Add condition:', condition
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self._conditions.append((result, condition))
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def enterCondition(self, ctx):
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if not self._match: return
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self._compute_condition(ctx)
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def enterElsec(self, ctx):
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if not self._match: return
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c = self._conditions[-1]
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self._conditions[-1] = (not c[0], c[1])
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if DBG: print 'Negate condition:', self._conditions[-1]
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def exitCondition(self, ctx):
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if not self._match: return
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if DBG: print 'Remove conditions: ', self._conditions[-1]
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del self._conditions[-1]
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def _flatten_conditions(self):
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if DBG: print '_flatten_conditions: ', self._conditions
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for condition, _ in self._conditions:
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if not condition:
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return False
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return True
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def enterAssignment(self, ctx):
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if not self._match: return
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if ctx.lvalue().Identifier().getText() == "sources":
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if self._flatten_conditions():
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self._extract_sources(ctx)
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def enterStatement(self, ctx):
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self._depth += 1
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def exitStatement(self, ctx):
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self._depth -= 1
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def get_sources(self):
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seen = set()
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result = []
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## Deduplicate list while maintaining ordering. needed for js2c files
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for s in self._sources:
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if not s in seen:
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result.append(s)
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seen.add(s)
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return result
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def parseSources(tree, target, arch = None, only_cc_files = True):
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listener = V8GnListener(target, arch, only_cc_files)
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ParseTreeWalker().walk(listener, tree)
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return listener.get_sources()
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def GenerateMakefiles():
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f = FileStream(os.path.join(os.getcwd(), './BUILD.gn'))
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lexer = gnLexer(f)
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stream = CommonTokenStream(lexer)
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parser = gnParser(stream)
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tree = parser.r()
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_writeBP('Android.platform.bp', 'libv8platform', parseSources(tree, "v8_libplatform"))
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_writeBP('Android.sampler.bp', 'libv8sampler', parseSources(tree, "v8_libsampler"))
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_writeV8SrcBP(lambda arch: set(parseSources(tree, "v8_base", arch) + parseSources(tree, "v8_initializers", arch)))
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_writeGeneratedFilesBP(parseSources(tree, "js2c", None, False))
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_writeLibBaseBP(parseSources(tree, "v8_libbase"))
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if __name__ == '__main__':
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GenerateMakefiles()
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