virtualx-engine/core/SCsub
Rémi Verschelde c2a669a9f0 SCons: Review uses of CCFLAGS, CXXFLAGS and CPPFLAGS
Many contributors (me included) did not fully understand what CCFLAGS,
CXXFLAGS and CPPFLAGS refer to exactly, and were thus not using them
in the way they are intended to be.

As per the SCons manual: https://www.scons.org/doc/HTML/scons-user/apa.html

- CCFLAGS: General options that are passed to the C and C++ compilers.
- CFLAGS: General options that are passed to the C compiler (C only;
  not C++).
- CXXFLAGS: General options that are passed to the C++ compiler. By
  default, this includes the value of $CCFLAGS, so that setting
  $CCFLAGS affects both C and C++ compilation.
- CPPFLAGS: User-specified C preprocessor options. These will be
  included in any command that uses the C preprocessor, including not
  just compilation of C and C++ source files [...], but also [...]
  Fortran [...] and [...] assembly language source file[s].

TL;DR: Compiler options go to CCFLAGS, unless they must be restricted
to either C (CFLAGS) or C++ (CXXFLAGS). Preprocessor defines go to
CPPFLAGS.
2019-04-24 16:57:58 +02:00

171 lines
5.6 KiB
Python

#!/usr/bin/env python
Import('env')
import core_builders
import make_binders
from platform_methods import run_in_subprocess
env.core_sources = []
# Generate AES256 script encryption key
import os
txt = "0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0"
if ("SCRIPT_AES256_ENCRYPTION_KEY" in os.environ):
e = os.environ["SCRIPT_AES256_ENCRYPTION_KEY"]
txt = ""
ec_valid = True
if (len(e) != 64):
ec_valid = False
else:
for i in range(len(e) >> 1):
if (i > 0):
txt += ","
txts = "0x" + e[i * 2:i * 2 + 2]
try:
int(txts, 16)
except:
ec_valid = False
txt += txts
if (not ec_valid):
txt = "0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0"
print("Invalid AES256 encryption key, not 64 bits hex: " + e)
# NOTE: It is safe to generate this file here, since this is still executed serially
with open("script_encryption_key.gen.cpp", "w") as f:
f.write("#include \"core/project_settings.h\"\nuint8_t script_encryption_key[32]={" + txt + "};\n")
# Add required thirdparty code.
env_thirdparty = env.Clone()
env_thirdparty.disable_warnings()
# Misc thirdparty code: header paths are hardcoded, we don't need to append
# to the include path (saves a few chars on the compiler invocation for touchy MSVC...)
thirdparty_misc_dir = "#thirdparty/misc/"
thirdparty_misc_sources = [
# C sources
"base64.c",
"fastlz.c",
"sha256.c",
"smaz.c",
# C++ sources
"aes256.cpp",
"hq2x.cpp",
"md5.cpp",
"pcg.cpp",
"triangulator.cpp",
]
thirdparty_misc_sources = [thirdparty_misc_dir + file for file in thirdparty_misc_sources]
env_thirdparty.add_source_files(env.core_sources, thirdparty_misc_sources)
# Zlib library, can be unbundled
if env['builtin_zlib']:
thirdparty_zlib_dir = "#thirdparty/zlib/"
thirdparty_zlib_sources = [
"adler32.c",
"compress.c",
"crc32.c",
"deflate.c",
"infback.c",
"inffast.c",
"inflate.c",
"inftrees.c",
"trees.c",
"uncompr.c",
"zutil.c",
]
thirdparty_zlib_sources = [thirdparty_zlib_dir + file for file in thirdparty_zlib_sources]
env_thirdparty.Append(CPPPATH=[thirdparty_zlib_dir])
# Needs to be available in main env too
env.Append(CPPPATH=[thirdparty_zlib_dir])
env_thirdparty.add_source_files(env.core_sources, thirdparty_zlib_sources)
# Minizip library, could be unbundled in theory
# However, our version has some custom modifications, so it won't compile with the system one
thirdparty_minizip_dir = "#thirdparty/minizip/"
thirdparty_minizip_sources = [
"ioapi.c",
"unzip.c",
"zip.c",
]
thirdparty_minizip_sources = [thirdparty_minizip_dir + file for file in thirdparty_minizip_sources]
env_thirdparty.add_source_files(env.core_sources, thirdparty_minizip_sources)
# Zstd library, can be unbundled in theory
# though we currently use some private symbols
# https://github.com/godotengine/godot/issues/17374
if env['builtin_zstd']:
thirdparty_zstd_dir = "#thirdparty/zstd/"
thirdparty_zstd_sources = [
"common/debug.c",
"common/entropy_common.c",
"common/error_private.c",
"common/fse_decompress.c",
"common/pool.c",
"common/threading.c",
"common/xxhash.c",
"common/zstd_common.c",
"compress/fse_compress.c",
"compress/hist.c",
"compress/huf_compress.c",
"compress/zstd_compress.c",
"compress/zstd_double_fast.c",
"compress/zstd_fast.c",
"compress/zstd_lazy.c",
"compress/zstd_ldm.c",
"compress/zstd_opt.c",
"compress/zstdmt_compress.c",
"decompress/huf_decompress.c",
"decompress/zstd_ddict.c",
"decompress/zstd_decompress_block.c",
"decompress/zstd_decompress.c",
]
thirdparty_zstd_sources = [thirdparty_zstd_dir + file for file in thirdparty_zstd_sources]
env_thirdparty.Append(CPPPATH=[thirdparty_zstd_dir, thirdparty_zstd_dir + "common"])
env_thirdparty.Append(CPPFLAGS="-DZSTD_STATIC_LINKING_ONLY")
env.Append(CPPPATH=thirdparty_zstd_dir)
# Also needed in main env includes will trigger warnings
env.Append(CPPFLAGS="-DZSTD_STATIC_LINKING_ONLY")
env_thirdparty.add_source_files(env.core_sources, thirdparty_zstd_sources)
# Godot's own sources
env.add_source_files(env.core_sources, "*.cpp")
# Certificates
env.Depends("#core/io/certs_compressed.gen.h", ["#thirdparty/certs/ca-certificates.crt", env.Value(env['builtin_certs']), env.Value(env['system_certs_path'])])
env.CommandNoCache("#core/io/certs_compressed.gen.h", "#thirdparty/certs/ca-certificates.crt", run_in_subprocess(core_builders.make_certs_header))
# Make binders
env.CommandNoCache(['method_bind.gen.inc', 'method_bind_ext.gen.inc'], 'make_binders.py', run_in_subprocess(make_binders.run))
# Authors
env.Depends('#core/authors.gen.h', "../AUTHORS.md")
env.CommandNoCache('#core/authors.gen.h', "../AUTHORS.md", run_in_subprocess(core_builders.make_authors_header))
# Donors
env.Depends('#core/donors.gen.h', "../DONORS.md")
env.CommandNoCache('#core/donors.gen.h', "../DONORS.md", run_in_subprocess(core_builders.make_donors_header))
# License
env.Depends('#core/license.gen.h', ["../COPYRIGHT.txt", "../LICENSE.txt"])
env.CommandNoCache('#core/license.gen.h', ["../COPYRIGHT.txt", "../LICENSE.txt"], run_in_subprocess(core_builders.make_license_header))
# Chain load SCsubs
SConscript('os/SCsub')
SConscript('math/SCsub')
SConscript('io/SCsub')
SConscript('bind/SCsub')
# Build it all as a library
lib = env.add_library("core", env.core_sources)
env.Prepend(LIBS=[lib])