1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
|
import os
import sys
import common_compiler_flags
import my_spawn
from SCons.Tool import mingw, msvc
from SCons.Variables import BoolVariable
def silence_msvc(env):
import os
import re
import tempfile
# Ensure we have a location to write captured output to, in case of false positives.
capture_path = os.path.join(os.path.dirname(__file__), "..", "msvc_capture.log")
with open(capture_path, "wt", encoding="utf-8"):
pass
old_spawn = env["SPAWN"]
re_redirect_stream = re.compile(r"^[12]?>")
re_cl_capture = re.compile(r"^.+\.(c|cc|cpp|cxx|c[+]{2})$", re.IGNORECASE)
re_link_capture = re.compile(r'\s{3}\S.+\s(?:"[^"]+.lib"|\S+.lib)\s.+\s(?:"[^"]+.exp"|\S+.exp)')
def spawn_capture(sh, escape, cmd, args, env):
# We only care about cl/link, process everything else as normal.
if args[0] not in ["cl", "link"]:
return old_spawn(sh, escape, cmd, args, env)
# Process as normal if the user is manually rerouting output.
for arg in args:
if re_redirect_stream.match(arg):
return old_spawn(sh, escape, cmd, args, env)
tmp_stdout, tmp_stdout_name = tempfile.mkstemp()
os.close(tmp_stdout)
args.append(f">{tmp_stdout_name}")
ret = old_spawn(sh, escape, cmd, args, env)
try:
with open(tmp_stdout_name, "r", encoding=sys.stdout.encoding, errors="replace") as tmp_stdout:
lines = tmp_stdout.read().splitlines()
os.remove(tmp_stdout_name)
except OSError:
pass
# Early process no lines (OSError)
if not lines:
return ret
is_cl = args[0] == "cl"
content = ""
caught = False
for line in lines:
# These conditions are far from all-encompassing, but are specialized
# for what can be reasonably expected to show up in the repository.
if not caught and (is_cl and re_cl_capture.match(line)) or (not is_cl and re_link_capture.match(line)):
caught = True
try:
with open(capture_path, "a", encoding=sys.stdout.encoding) as log:
log.write(line + "\n")
except OSError:
print(f'WARNING: Failed to log captured line: "{line}".')
continue
content += line + "\n"
# Content remaining assumed to be an error/warning.
if content:
sys.stderr.write(content)
return ret
env["SPAWN"] = spawn_capture
def options(opts):
mingw = os.getenv("MINGW_PREFIX", "")
opts.Add(BoolVariable("use_mingw", "Use the MinGW compiler instead of MSVC - only effective on Windows", False))
opts.Add(BoolVariable("use_static_cpp", "Link MinGW/MSVC C++ runtime libraries statically", True))
opts.Add(BoolVariable("silence_msvc", "Silence MSVC's cl/link stdout bloat, redirecting errors to stderr.", True))
opts.Add(BoolVariable("use_llvm", "Use the LLVM compiler (MVSC or MinGW depending on the use_mingw flag)", False))
opts.Add("mingw_prefix", "MinGW prefix", mingw)
def exists(env):
return True
def generate(env):
if not env["use_mingw"] and msvc.exists(env):
if env["arch"] == "x86_64":
env["TARGET_ARCH"] = "amd64"
elif env["arch"] == "arm64":
env["TARGET_ARCH"] = "arm64"
elif env["arch"] == "arm32":
env["TARGET_ARCH"] = "arm"
elif env["arch"] == "x86_32":
env["TARGET_ARCH"] = "x86"
env["MSVC_SETUP_RUN"] = False # Need to set this to re-run the tool
env["MSVS_VERSION"] = None
env["MSVC_VERSION"] = None
env["is_msvc"] = True
# MSVC, linker, and archiver.
msvc.generate(env)
env.Tool("msvc")
env.Tool("mslib")
env.Tool("mslink")
env.Append(CPPDEFINES=["TYPED_METHOD_BIND", "NOMINMAX"])
env.Append(CCFLAGS=["/utf-8"])
env.Append(LINKFLAGS=["/WX"])
if env["use_llvm"]:
env["CC"] = "clang-cl"
env["CXX"] = "clang-cl"
if env["use_static_cpp"]:
env.Append(CCFLAGS=["/MT"])
else:
env.Append(CCFLAGS=["/MD"])
if env["silence_msvc"] and not env.GetOption("clean"):
silence_msvc(env)
elif (sys.platform == "win32" or sys.platform == "msys") and not env["mingw_prefix"]:
env["use_mingw"] = True
mingw.generate(env)
# Don't want lib prefixes
env["IMPLIBPREFIX"] = ""
env["SHLIBPREFIX"] = ""
# Want dll suffix
env["SHLIBSUFFIX"] = ".dll"
env.Append(CCFLAGS=["-Wwrite-strings"])
env.Append(LINKFLAGS=["-Wl,--no-undefined"])
if env["use_static_cpp"]:
env.Append(
LINKFLAGS=[
"-static",
"-static-libgcc",
"-static-libstdc++",
]
)
# Long line hack. Use custom spawn, quick AR append (to avoid files with the same names to override each other).
my_spawn.configure(env)
else:
env["use_mingw"] = True
# Cross-compilation using MinGW
prefix = ""
if env["mingw_prefix"]:
prefix = env["mingw_prefix"] + "/bin/"
if env["arch"] == "x86_64":
prefix += "x86_64"
elif env["arch"] == "arm64":
prefix += "aarch64"
elif env["arch"] == "arm32":
prefix += "armv7"
elif env["arch"] == "x86_32":
prefix += "i686"
if env["use_llvm"]:
env["CXX"] = prefix + "-w64-mingw32-clang++"
env["CC"] = prefix + "-w64-mingw32-clang"
env["AR"] = prefix + "-w64-mingw32-llvm-ar"
env["RANLIB"] = prefix + "-w64-mingw32-ranlib"
env["LINK"] = prefix + "-w64-mingw32-clang"
else:
env["CXX"] = prefix + "-w64-mingw32-g++"
env["CC"] = prefix + "-w64-mingw32-gcc"
env["AR"] = prefix + "-w64-mingw32-gcc-ar"
env["RANLIB"] = prefix + "-w64-mingw32-ranlib"
env["LINK"] = prefix + "-w64-mingw32-g++"
# Want dll suffix
env["SHLIBSUFFIX"] = ".dll"
env.Append(CCFLAGS=["-Wwrite-strings"])
env.Append(LINKFLAGS=["-Wl,--no-undefined"])
if env["use_static_cpp"]:
env.Append(
LINKFLAGS=[
"-static",
"-static-libgcc",
"-static-libstdc++",
]
)
if env["use_llvm"]:
env.Append(LINKFLAGS=["-lstdc++"])
if sys.platform == "win32" or sys.platform == "msys":
my_spawn.configure(env)
env.Append(CPPDEFINES=["WINDOWS_ENABLED"])
common_compiler_flags.generate(env)
|
