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
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
|
pub const Env = enum {
/// zig1 features
/// - `-ofmt=c` only
/// - `-OReleaseFast` or `-OReleaseSmall` only
/// - no `@setRuntimeSafety(true)`
bootstrap,
/// zig2 features
core,
/// stage3 features
full,
/// - `zig cc`
/// - `zig c++`
/// - `zig translate-c`
c_source,
/// - `zig ast-check`
/// - `zig changelist`
/// - `zig dump-zir`
ast_gen,
/// - ast_gen
/// - `zig build-* -fno-emit-bin`
sema,
/// - sema
/// - `zig build-* -fincremental -fno-llvm -fno-lld -target aarch64-linux --listen=-`
@"aarch64-linux",
/// - `zig build-* -ofmt=c`
cbe,
/// - sema
/// - `zig build-* -fincremental -fno-llvm -fno-lld -target powerpc(64)(le)-linux --listen=-`
@"powerpc-linux",
/// - sema
/// - `zig build-* -fno-llvm -fno-lld -target riscv64-linux`
@"riscv64-linux",
/// - sema
/// - `zig build-* -fno-llvm -fno-lld -target spirv(32/64)-* --listen=-`
spirv,
/// - sema
/// - `zig build-* -fno-llvm -fno-lld -target wasm32-* --listen=-`
wasm,
/// - sema
/// - `zig build-* -fincremental -fno-llvm -fno-lld -target x86_64-linux --listen=-`
@"x86_64-linux",
pub inline fn supports(comptime dev_env: Env, comptime feature: Feature) bool {
return switch (dev_env) {
.full => true,
.bootstrap => switch (feature) {
.build_exe_command,
.build_obj_command,
.ast_gen,
.sema,
.c_backend,
.c_linker,
=> true,
else => false,
},
.core => switch (feature) {
.build_exe_command,
.build_lib_command,
.build_obj_command,
.test_command,
.run_command,
.ar_command,
.build_command,
.clang_command,
.stdio_listen,
.build_import_lib,
.make_executable,
.make_writable,
.incremental,
.ast_gen,
.sema,
.legalize,
.c_compiler,
.llvm_backend,
.c_backend,
.wasm_backend,
.arm_backend,
.x86_64_backend,
.aarch64_backend,
.x86_backend,
.powerpc_backend,
.riscv64_backend,
.sparc64_backend,
.spirv_backend,
.lld_linker,
.coff_linker,
.elf_linker,
.macho_linker,
.c_linker,
.wasm_linker,
.spirv_linker,
.plan9_linker,
.goff_linker,
.xcoff_linker,
=> true,
.cc_command,
.translate_c_command,
.fmt_command,
.jit_command,
.fetch_command,
.init_command,
.targets_command,
.version_command,
.env_command,
.zen_command,
.help_command,
.ast_check_command,
.detect_cpu_command,
.changelist_command,
.dump_zir_command,
.llvm_ints_command,
.docs_emit,
// Avoid dragging networking into zig2.c because it adds dependencies on some
// linker symbols that are annoying to satisfy while bootstrapping.
.network_listen,
.win32_resource,
=> false,
},
.c_source => switch (feature) {
.clang_command,
.cc_command,
.translate_c_command,
.c_compiler,
=> true,
else => false,
},
.ast_gen => switch (feature) {
.ast_check_command,
.changelist_command,
.dump_zir_command,
.make_executable,
.make_writable,
.incremental,
.ast_gen,
=> true,
else => false,
},
.sema => switch (feature) {
.build_exe_command,
.build_lib_command,
.build_obj_command,
.test_command,
.run_command,
.sema,
=> true,
else => Env.ast_gen.supports(feature),
},
.@"aarch64-linux" => switch (feature) {
.build_command,
.stdio_listen,
.incremental,
.aarch64_backend,
.elf_linker,
=> true,
else => Env.sema.supports(feature),
},
.cbe => switch (feature) {
.legalize,
.c_backend,
.c_linker,
=> true,
else => Env.sema.supports(feature),
},
.@"powerpc-linux" => switch (feature) {
.build_command,
.stdio_listen,
.incremental,
.x86_64_backend,
.elf_linker,
=> true,
else => Env.sema.supports(feature),
},
.@"riscv64-linux" => switch (feature) {
.riscv64_backend,
.elf_linker,
=> true,
else => Env.sema.supports(feature),
},
.spirv => switch (feature) {
.spirv_backend,
.spirv_linker,
=> true,
else => Env.sema.supports(feature),
},
.wasm => switch (feature) {
.stdio_listen,
.incremental,
.wasm_backend,
.wasm_linker,
=> true,
else => Env.sema.supports(feature),
},
.@"x86_64-linux" => switch (feature) {
.build_command,
.stdio_listen,
.incremental,
.legalize,
.x86_64_backend,
.elf_linker,
=> true,
else => Env.sema.supports(feature),
},
};
}
pub inline fn supportsAny(comptime dev_env: Env, comptime features: []const Feature) bool {
inline for (features) |feature| if (dev_env.supports(feature)) return true;
return false;
}
pub inline fn supportsAll(comptime dev_env: Env, comptime features: []const Feature) bool {
inline for (features) |feature| if (!dev_env.supports(feature)) return false;
return true;
}
};
pub const Feature = enum {
build_exe_command,
build_lib_command,
build_obj_command,
test_command,
run_command,
ar_command,
build_command,
clang_command,
cc_command,
translate_c_command,
fmt_command,
jit_command,
fetch_command,
init_command,
targets_command,
version_command,
env_command,
zen_command,
help_command,
ast_check_command,
detect_cpu_command,
changelist_command,
dump_zir_command,
llvm_ints_command,
docs_emit,
stdio_listen,
network_listen,
build_import_lib,
win32_resource,
make_executable,
make_writable,
incremental,
ast_gen,
sema,
legalize,
c_compiler,
llvm_backend,
c_backend,
wasm_backend,
arm_backend,
x86_64_backend,
aarch64_backend,
x86_backend,
powerpc_backend,
riscv64_backend,
sparc64_backend,
spirv_backend,
lld_linker,
coff_linker,
elf_linker,
macho_linker,
c_linker,
wasm_linker,
spirv_linker,
plan9_linker,
goff_linker,
xcoff_linker,
};
/// Makes the code following the call to this function unreachable if `feature` is disabled.
pub fn check(comptime feature: Feature) if (env.supports(feature)) void else noreturn {
if (env.supports(feature)) return;
@panic("development environment " ++ @tagName(env) ++ " does not support feature " ++ @tagName(feature));
}
/// Makes the code following the call to this function unreachable if all of `features` are disabled.
pub fn checkAny(comptime features: []const Feature) if (env.supportsAny(features)) void else noreturn {
if (env.supportsAny(features)) return;
comptime var feature_tags: []const u8 = "";
inline for (features[0 .. features.len - 1]) |feature| feature_tags = feature_tags ++ @tagName(feature) ++ ", ";
feature_tags = feature_tags ++ "or " ++ @tagName(features[features.len - 1]);
@panic("development environment " ++ @tagName(env) ++ " does not support feature " ++ feature_tags);
}
/// Makes the code following the call to this function unreachable if any of `features` are disabled.
pub fn checkAll(comptime features: []const Feature) if (env.supportsAll(features)) void else noreturn {
if (env.supportsAll(features)) return;
inline for (features) |feature| if (!env.supports(feature))
@panic("development environment " ++ @tagName(env) ++ " does not support feature " ++ @tagName(feature));
}
const build_options = @import("build_options");
pub const env: Env = if (@hasDecl(build_options, "dev"))
@field(Env, @tagName(build_options.dev))
else if (@hasDecl(build_options, "only_c") and build_options.only_c)
.bootstrap
else if (@hasDecl(build_options, "only_core_functionality") and build_options.only_core_functionality)
.core
else
.full;
|
