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
|
"""absl specific copts.
Flags specified here must not impact ABI. Code compiled with and without these
opts will be linked together, and in some cases headers compiled with and
without these options will be part of the same program.
"""
GCC_FLAGS = [
"-Wall",
"-Wextra",
"-Wcast-qual",
"-Wconversion-null",
"-Wmissing-declarations",
"-Woverlength-strings",
"-Wpointer-arith",
"-Wunused-local-typedefs",
"-Wunused-result",
"-Wvarargs",
"-Wvla", # variable-length array
"-Wwrite-strings",
# Google style does not use unsigned integers, though STL containers
# have unsigned types.
"-Wno-sign-compare",
]
GCC_TEST_FLAGS = [
"-Wno-conversion-null",
"-Wno-missing-declarations",
"-Wno-sign-compare",
"-Wno-unused-function",
"-Wno-unused-parameter",
"-Wno-unused-private-field",
]
# Docs on single flags is preceded by a comment.
# Docs on groups of flags is preceded by ###.
LLVM_FLAGS = [
"-Wall",
"-Wextra",
"-Weverything",
# Abseil does not support C++98
"-Wno-c++98-compat-pedantic",
# Turns off all implicit conversion warnings. Most are re-enabled below.
"-Wno-conversion",
"-Wno-covered-switch-default",
"-Wno-deprecated",
"-Wno-disabled-macro-expansion",
"-Wno-double-promotion",
###
# Turned off as they include valid C++ code.
"-Wno-comma",
"-Wno-extra-semi",
"-Wno-packed",
"-Wno-padded",
###
# Google style does not use unsigned integers, though STL containers
# have unsigned types.
"-Wno-sign-compare",
###
"-Wno-float-conversion",
"-Wno-float-equal",
"-Wno-format-nonliteral",
# Too aggressive: warns on Clang extensions enclosed in Clang-only
# compilation paths.
"-Wno-gcc-compat",
###
# Some internal globals are necessary. Don't do this at home.
"-Wno-global-constructors",
"-Wno-exit-time-destructors",
###
"-Wno-nested-anon-types",
"-Wno-non-modular-include-in-module",
"-Wno-old-style-cast",
# Warns on preferred usage of non-POD types such as string_view
"-Wno-range-loop-analysis",
"-Wno-reserved-id-macro",
"-Wno-shorten-64-to-32",
"-Wno-switch-enum",
"-Wno-thread-safety-negative",
"-Wno-undef",
"-Wno-unknown-warning-option",
"-Wno-unreachable-code",
# Causes warnings on include guards
"-Wno-unused-macros",
"-Wno-weak-vtables",
###
# Implicit conversion warnings turned off by -Wno-conversion
# which are re-enabled below.
"-Wbitfield-enum-conversion",
"-Wbool-conversion",
"-Wconstant-conversion",
"-Wenum-conversion",
"-Wint-conversion",
"-Wliteral-conversion",
"-Wnon-literal-null-conversion",
"-Wnull-conversion",
"-Wobjc-literal-conversion",
"-Wno-sign-conversion",
"-Wstring-conversion",
###
]
LLVM_TEST_FLAGS = [
"-Wno-c99-extensions",
"-Wno-missing-noreturn",
"-Wno-missing-prototypes",
"-Wno-missing-variable-declarations",
"-Wno-null-conversion",
"-Wno-shadow",
"-Wno-shift-sign-overflow",
"-Wno-sign-compare",
"-Wno-unused-function",
"-Wno-unused-member-function",
"-Wno-unused-parameter",
"-Wno-unused-private-field",
"-Wno-unused-template",
"-Wno-used-but-marked-unused",
"-Wno-zero-as-null-pointer-constant",
# gtest depends on this GNU extension being offered.
"-Wno-gnu-zero-variadic-macro-arguments",
]
MSVC_FLAGS = [
"/W3",
"/wd4005", # macro-redefinition
"/wd4068", # unknown pragma
"/wd4180", # qualifier applied to function type has no meaning; ignored
"/wd4244", # conversion from 'type1' to 'type2', possible loss of data
"/wd4267", # conversion from 'size_t' to 'type', possible loss of data
"/wd4800", # forcing value to bool 'true' or 'false' (performance warning)
"/DNOMINMAX", # Don't define min and max macros (windows.h)
"/DWIN32_LEAN_AND_MEAN", # Don't bloat namespace with incompatible winsock versions.
"/D_CRT_SECURE_NO_WARNINGS", # Don't warn about usage of insecure C functions
]
MSVC_TEST_FLAGS = [
"/wd4018", # signed/unsigned mismatch
"/wd4101", # unreferenced local variable
"/wd4503", # decorated name length exceeded, name was truncated
]
# /Wall with msvc includes unhelpful warnings such as C4711, C4710, ...
ABSL_DEFAULT_COPTS = select({
"//absl:windows": MSVC_FLAGS,
"//absl:llvm_compiler": LLVM_FLAGS,
"//conditions:default": GCC_FLAGS,
})
# in absence of modules (--compiler=gcc or -c opt), cc_tests leak their copts
# to their (included header) dependencies and fail to build outside absl
ABSL_TEST_COPTS = ABSL_DEFAULT_COPTS + select({
"//absl:windows": MSVC_TEST_FLAGS,
"//absl:llvm_compiler": LLVM_TEST_FLAGS,
"//conditions:default": GCC_TEST_FLAGS,
})
ABSL_EXCEPTIONS_FLAG = select({
"//absl:windows": ["/U_HAS_EXCEPTIONS", "/D_HAS_EXCEPTIONS=1", "/EHsc"],
"//conditions:default": ["-fexceptions"],
})
ABSL_EXCEPTIONS_FLAG_LINKOPTS = select({
"//conditions:default": [],
})
|
