2f2e6e1e2c
Summary: We would like to build a shared library with all fbcode dependencies statically linked within. This resulting .so should not drop any symbols definitions in the building process. To ensure that, we use `link_whole=True` according to https://buck.build/rule/cxx_library.html#link_whole. Since `link_whole` is `False` by default, adding a `link_whole=False` to existing libraries won't change any behavior. Pull Request resolved: https://github.com/facebook/rocksdb/pull/7466 Test Plan: build a .so and test internally. Reviewed By: pdillinger Differential Revision: D24009780 Pulled By: riversand963 fbshipit-source-id: d18804d495da7195ed72a2040e1a5de4fd336519
244 lines
7.6 KiB
Python
244 lines
7.6 KiB
Python
# Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
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from __future__ import absolute_import
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from __future__ import division
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from __future__ import print_function
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from __future__ import unicode_literals
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try:
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from builtins import str
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except ImportError:
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from __builtin__ import str
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from targets_builder import TARGETSBuilder
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import json
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import os
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import fnmatch
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import sys
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from util import ColorString
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# This script generates TARGETS file for Buck.
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# Buck is a build tool specifying dependencies among different build targets.
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# User can pass extra dependencies as a JSON object via command line, and this
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# script can include these dependencies in the generate TARGETS file.
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# Usage:
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# $python3 buckifier/buckify_rocksdb.py
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# (This generates a TARGET file without user-specified dependency for unit
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# tests.)
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# $python3 buckifier/buckify_rocksdb.py \
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# '{"fake": { \
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# "extra_deps": [":test_dep", "//fakes/module:mock1"], \
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# "extra_compiler_flags": ["-DROCKSDB_LITE", "-Os"], \
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# } \
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# }'
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# (Generated TARGETS file has test_dep and mock1 as dependencies for RocksDB
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# unit tests, and will use the extra_compiler_flags to compile the unit test
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# source.)
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# tests to export as libraries for inclusion in other projects
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_EXPORTED_TEST_LIBS = ["env_basic_test"]
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# Parse src.mk files as a Dictionary of
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# VAR_NAME => list of files
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def parse_src_mk(repo_path):
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src_mk = repo_path + "/src.mk"
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src_files = {}
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for line in open(src_mk):
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line = line.strip()
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if len(line) == 0 or line[0] == '#':
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continue
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if '=' in line:
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current_src = line.split('=')[0].strip()
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src_files[current_src] = []
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elif '.c' in line:
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src_path = line.split('\\')[0].strip()
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src_files[current_src].append(src_path)
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return src_files
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# get all .cc / .c files
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def get_cc_files(repo_path):
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cc_files = []
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for root, dirnames, filenames in os.walk(repo_path): # noqa: B007 T25377293 Grandfathered in
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root = root[(len(repo_path) + 1):]
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if "java" in root:
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# Skip java
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continue
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for filename in fnmatch.filter(filenames, '*.cc'):
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cc_files.append(os.path.join(root, filename))
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for filename in fnmatch.filter(filenames, '*.c'):
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cc_files.append(os.path.join(root, filename))
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return cc_files
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# Get parallel tests from Makefile
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def get_parallel_tests(repo_path):
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Makefile = repo_path + "/Makefile"
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s = set({})
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found_parallel_tests = False
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for line in open(Makefile):
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line = line.strip()
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if line.startswith("PARALLEL_TEST ="):
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found_parallel_tests = True
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elif found_parallel_tests:
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if line.endswith("\\"):
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# remove the trailing \
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line = line[:-1]
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line = line.strip()
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s.add(line)
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else:
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# we consumed all the parallel tests
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break
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return s
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# Parse extra dependencies passed by user from command line
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def get_dependencies():
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deps_map = {
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'': {
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'extra_deps': [],
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'extra_compiler_flags': []
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}
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}
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if len(sys.argv) < 2:
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return deps_map
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def encode_dict(data):
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rv = {}
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for k, v in data.items():
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if isinstance(v, dict):
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v = encode_dict(v)
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rv[k] = v
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return rv
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extra_deps = json.loads(sys.argv[1], object_hook=encode_dict)
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for target_alias, deps in extra_deps.items():
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deps_map[target_alias] = deps
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return deps_map
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# Prepare TARGETS file for buck
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def generate_targets(repo_path, deps_map):
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print(ColorString.info("Generating TARGETS"))
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# parsed src.mk file
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src_mk = parse_src_mk(repo_path)
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# get all .cc files
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cc_files = get_cc_files(repo_path)
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# get parallel tests from Makefile
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parallel_tests = get_parallel_tests(repo_path)
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if src_mk is None or cc_files is None or parallel_tests is None:
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return False
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TARGETS = TARGETSBuilder("%s/TARGETS" % repo_path)
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# rocksdb_lib
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TARGETS.add_library(
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"rocksdb_lib",
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src_mk["LIB_SOURCES"] +
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src_mk["TOOL_LIB_SOURCES"])
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# rocksdb_whole_archive_lib
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TARGETS.add_library(
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"rocksdb_whole_archive_lib",
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src_mk["LIB_SOURCES"] +
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src_mk["TOOL_LIB_SOURCES"],
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deps=None,
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headers=None,
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extra_external_deps="",
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link_whole=True)
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# rocksdb_test_lib
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TARGETS.add_library(
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"rocksdb_test_lib",
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src_mk.get("MOCK_LIB_SOURCES", []) +
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src_mk.get("TEST_LIB_SOURCES", []) +
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src_mk.get("EXP_LIB_SOURCES", []) +
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src_mk.get("ANALYZER_LIB_SOURCES", []),
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[":rocksdb_lib"],
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extra_external_deps=""" + [
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("googletest", None, "gtest"),
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]""")
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# rocksdb_tools_lib
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TARGETS.add_library(
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"rocksdb_tools_lib",
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src_mk.get("BENCH_LIB_SOURCES", []) +
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src_mk.get("ANALYZER_LIB_SOURCES", []) +
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["test_util/testutil.cc"],
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[":rocksdb_lib"])
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# rocksdb_stress_lib
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TARGETS.add_rocksdb_library(
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"rocksdb_stress_lib",
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src_mk.get("ANALYZER_LIB_SOURCES", [])
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+ src_mk.get('STRESS_LIB_SOURCES', [])
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+ ["test_util/testutil.cc"])
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print("Extra dependencies:\n{0}".format(json.dumps(deps_map)))
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# Dictionary test executable name -> relative source file path
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test_source_map = {}
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print(src_mk)
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# c_test.c is added through TARGETS.add_c_test(). If there
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# are more than one .c test file, we need to extend
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# TARGETS.add_c_test() to include other C tests too.
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for test_src in src_mk.get("TEST_MAIN_SOURCES_C", []):
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if test_src != 'db/c_test.c':
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print("Don't know how to deal with " + test_src)
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return False
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TARGETS.add_c_test()
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for test_src in src_mk.get("TEST_MAIN_SOURCES", []):
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test = test_src.split('.c')[0].strip().split('/')[-1].strip()
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test_source_map[test] = test_src
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print("" + test + " " + test_src)
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for target_alias, deps in deps_map.items():
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for test, test_src in sorted(test_source_map.items()):
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if len(test) == 0:
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print(ColorString.warning("Failed to get test name for %s" % test_src))
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continue
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test_target_name = \
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test if not target_alias else test + "_" + target_alias
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TARGETS.register_test(
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test_target_name,
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test_src,
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test in parallel_tests,
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json.dumps(deps['extra_deps']),
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json.dumps(deps['extra_compiler_flags']))
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if test in _EXPORTED_TEST_LIBS:
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test_library = "%s_lib" % test_target_name
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TARGETS.add_library(test_library, [test_src], [":rocksdb_test_lib"])
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TARGETS.flush_tests()
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print(ColorString.info("Generated TARGETS Summary:"))
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print(ColorString.info("- %d libs" % TARGETS.total_lib))
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print(ColorString.info("- %d binarys" % TARGETS.total_bin))
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print(ColorString.info("- %d tests" % TARGETS.total_test))
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return True
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def get_rocksdb_path():
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# rocksdb = {script_dir}/..
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script_dir = os.path.dirname(sys.argv[0])
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script_dir = os.path.abspath(script_dir)
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rocksdb_path = os.path.abspath(
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os.path.join(script_dir, "../"))
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return rocksdb_path
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def exit_with_error(msg):
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print(ColorString.error(msg))
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sys.exit(1)
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def main():
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deps_map = get_dependencies()
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# Generate TARGETS file for buck
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ok = generate_targets(get_rocksdb_path(), deps_map)
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if not ok:
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exit_with_error("Failed to generate TARGETS files")
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if __name__ == "__main__":
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main()
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