aboutsummaryrefslogtreecommitdiffhomepage
path: root/gn/BUILDCONFIG.gn
blob: 057bea1faf2e18102239dc61b841d154ebd922bb (plain)
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
202
203
# Copyright 2016 Google Inc.
#
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

is_skia_standalone = true

# It's best to keep the names and defaults of is_foo flags consistent with Chrome.

declare_args() {
  is_official_build = false
  is_component_build = false
  ndk = ""
  if (target_cpu == "x86" || target_cpu == "mipsel" || target_cpu == "arm") {
    ndk_api = 18
  } else {
    ndk_api = 21
  }
  sanitize = ""

  ar = "ar"
  cc = "cc"
  cxx = "c++"

  msvc = 2015
  clang_win = ""
}
declare_args() {
  is_debug = !is_official_build

  if (msvc == 2015) {
    windk = "C:/Program Files (x86)/Microsoft Visual Studio 14.0"
  } else {
    windk = "C:/Program Files (x86)/Microsoft Visual Studio/2017/Professional"
  }
}

assert(!(is_debug && is_official_build))

if (target_cpu == "wasm") {
  target_os = "wasm"
}

# Platform detection
if (target_os == "") {
  target_os = host_os
  if (ndk != "") {
    target_os = "android"
  }
}
if (current_os == "") {
  current_os = target_os
}

is_android = current_os == "android"
is_fuchsia = current_os == "fuchsia"
is_ios = current_os == "ios" || current_os == "tvos"
is_tvos = current_os == "tvos"
is_linux = current_os == "linux"
is_mac = current_os == "mac"
is_win = current_os == "win"

if (target_cpu == "") {
  target_cpu = host_cpu
  if (is_android || is_ios) {
    target_cpu = "arm64"
  }
}
if (target_cpu == "x86_64") {
  target_cpu = "x64"
}
if (current_cpu == "") {
  current_cpu = target_cpu
}

is_clang = is_android || is_ios || is_mac ||
           (cc == "clang" && cxx == "clang++") || clang_win != ""
if (!is_clang && !is_win) {
  is_clang = exec_script("gn/is_clang.py",
                         [
                           cc,
                           cxx,
                         ],
                         "value")
}

if (is_android) {
  ndk_host = ""
  ndk_target = ""
  ndk_platform = ""
  ndk_stdlib = ""
  ndk_gccdir = ""
  ndk_gdbserver = ""

  if (host_os == "linux") {
    ndk_host = "linux-x86_64"
  } else if (host_os == "mac") {
    ndk_host = "darwin-x86_64"
  } else if (host_os == "win") {
    ndk_host = "windows-x86_64"
  }

  if (target_cpu == "arm64") {
    ndk_target = "aarch64-linux-android"
    ndk_platform = "android-${ndk_api}/arch-arm64"
    ndk_stdlib = "arm64-v8a"
    ndk_gccdir = ndk_target
    ndk_gdbserver = "prebuilt/android-arm64/gdbserver/gdbserver"
  } else if (target_cpu == "arm") {
    ndk_target = "arm-linux-androideabi"
    ndk_platform = "android-${ndk_api}/arch-arm"
    ndk_stdlib = "armeabi-v7a"
    ndk_gccdir = ndk_target
    ndk_gdbserver = "prebuilt/android-arm/gdbserver/gdbserver"
  } else if (target_cpu == "mips64el") {
    ndk_target = "mips64el-linux-android"
    ndk_platform = "android-${ndk_api}/arch-mips64"
    ndk_stdlib = "mips64"
    ndk_gccdir = ndk_target
    ndk_gdbserver = "prebuilt/android-mips64/gdbserver/gdbserver"
  } else if (target_cpu == "mipsel") {
    ndk_target = "mipsel-linux-android"
    ndk_platform = "android-${ndk_api}/arch-mips"
    ndk_stdlib = "mips"
    ndk_gccdir = ndk_target
    ndk_gdbserver = "prebuilt/android-mips/gdbserver/gdbserver"
  } else if (target_cpu == "x64") {
    ndk_target = "x86_64-linux-android"
    ndk_platform = "android-${ndk_api}/arch-x86_64"
    ndk_stdlib = "x86_64"
    ndk_gccdir = ndk_stdlib
    ndk_gdbserver = "prebuilt/android-x86_64/gdbserver/gdbserver"
  } else if (target_cpu == "x86") {
    ndk_target = "i686-linux-android"
    ndk_platform = "android-${ndk_api}/arch-x86"
    ndk_stdlib = "x86"
    ndk_gccdir = ndk_stdlib
    ndk_gdbserver = "prebuilt/android-x86/gdbserver/gdbserver"
  }
}

# A component is either a static or a shared library.
template("component") {
  _component_mode = "static_library"
  if (is_component_build) {
    _component_mode = "shared_library"
  }

  target(_component_mode, target_name) {
    forward_variables_from(invoker, "*")
  }
}

# Default configs
default_configs = [
  "//gn:default",
  "//gn:no_exceptions",
  "//gn:no_rtti",
  "//gn:warnings",
  "//gn:warnings_except_public_headers",
]
if (!is_debug) {
  default_configs += [ "//gn:release" ]
}
if (!is_official_build) {
  default_configs += [ "//gn:debug_symbols" ]
}
default_configs += [ "//gn:extra_flags" ]

set_defaults("executable") {
  configs = [ "//gn:executable" ] + default_configs
}

set_defaults("source_set") {
  configs = default_configs
}

set_defaults("static_library") {
  configs = default_configs
}

set_defaults("shared_library") {
  configs = default_configs
}

set_defaults("component") {
  configs = default_configs
  if (!is_component_build) {
    complete_static_lib = true
  }
}

if (is_win) {
  # Windows tool chain
  set_default_toolchain("//gn/toolchain:msvc")
  default_toolchain_name = "msvc"
  host_toolchain = "msvc"
} else {
  # GCC-like toolchains, including Clang.
  set_default_toolchain("//gn/toolchain:gcc_like")
  default_toolchain_name = "gcc_like"
  host_toolchain = "gcc_like_host"
}