]>
Commit | Line | Data |
---|---|---|
2f7ab126 MO |
1 | # SPDX-License-Identifier: GPL-2.0 |
2 | ||
3 | always-$(CONFIG_RUST) += target.json | |
4 | no-clean-files += target.json | |
5 | ||
6 | obj-$(CONFIG_RUST) += core.o compiler_builtins.o | |
7 | always-$(CONFIG_RUST) += exports_core_generated.h | |
8 | ||
9 | # Missing prototypes are expected in the helpers since these are exported | |
10 | # for Rust only, thus there is no header nor prototypes. | |
11 | obj-$(CONFIG_RUST) += helpers.o | |
12 | CFLAGS_REMOVE_helpers.o = -Wmissing-prototypes -Wmissing-declarations | |
13 | ||
14 | always-$(CONFIG_RUST) += libmacros.so | |
15 | no-clean-files += libmacros.so | |
16 | ||
17 | always-$(CONFIG_RUST) += bindings/bindings_generated.rs bindings/bindings_helpers_generated.rs | |
18 | obj-$(CONFIG_RUST) += alloc.o bindings.o kernel.o | |
19 | always-$(CONFIG_RUST) += exports_alloc_generated.h exports_bindings_generated.h \ | |
20 | exports_kernel_generated.h | |
21 | ||
ecaa6ddf GG |
22 | ifdef CONFIG_RUST_BUILD_ASSERT_ALLOW |
23 | obj-$(CONFIG_RUST) += build_error.o | |
24 | else | |
25 | always-$(CONFIG_RUST) += build_error.o | |
26 | endif | |
27 | ||
2f7ab126 MO |
28 | obj-$(CONFIG_RUST) += exports.o |
29 | ||
30 | # Avoids running `$(RUSTC)` for the sysroot when it may not be available. | |
31 | ifdef CONFIG_RUST | |
32 | ||
33 | # `$(rust_flags)` is passed in case the user added `--sysroot`. | |
34 | rustc_sysroot := $(shell $(RUSTC) $(rust_flags) --print sysroot) | |
35 | rustc_host_target := $(shell $(RUSTC) --version --verbose | grep -F 'host: ' | cut -d' ' -f2) | |
36 | RUST_LIB_SRC ?= $(rustc_sysroot)/lib/rustlib/src/rust/library | |
37 | ||
38 | ifeq ($(quiet),silent_) | |
39 | cargo_quiet=-q | |
40 | rust_test_quiet=-q | |
41 | rustdoc_test_quiet=--test-args -q | |
42 | else ifeq ($(quiet),quiet_) | |
43 | rust_test_quiet=-q | |
44 | rustdoc_test_quiet=--test-args -q | |
45 | else | |
46 | cargo_quiet=--verbose | |
47 | endif | |
48 | ||
49 | core-cfgs = \ | |
50 | --cfg no_fp_fmt_parse | |
51 | ||
52 | alloc-cfgs = \ | |
53 | --cfg no_fmt \ | |
54 | --cfg no_global_oom_handling \ | |
55 | --cfg no_macros \ | |
56 | --cfg no_rc \ | |
57 | --cfg no_str \ | |
58 | --cfg no_string \ | |
59 | --cfg no_sync \ | |
60 | --cfg no_thin | |
61 | ||
62 | quiet_cmd_rustdoc = RUSTDOC $(if $(rustdoc_host),H, ) $< | |
63 | cmd_rustdoc = \ | |
64 | OBJTREE=$(abspath $(objtree)) \ | |
65 | $(RUSTDOC) $(if $(rustdoc_host),$(rust_common_flags),$(rust_flags)) \ | |
66 | $(rustc_target_flags) -L$(objtree)/$(obj) \ | |
67 | --output $(objtree)/$(obj)/doc \ | |
68 | --crate-name $(subst rustdoc-,,$@) \ | |
69 | @$(objtree)/include/generated/rustc_cfg $< | |
70 | ||
71 | # The `html_logo_url` and `html_favicon_url` forms of the `doc` attribute | |
72 | # can be used to specify a custom logo. However: | |
73 | # - The given value is used as-is, thus it cannot be relative or a local file | |
74 | # (unlike the non-custom case) since the generated docs have subfolders. | |
75 | # - It requires adding it to every crate. | |
76 | # - It requires changing `core` which comes from the sysroot. | |
77 | # | |
78 | # Using `-Zcrate-attr` would solve the last two points, but not the first. | |
79 | # The https://github.com/rust-lang/rfcs/pull/3226 RFC suggests two new | |
80 | # command-like flags to solve the issue. Meanwhile, we use the non-custom case | |
81 | # and then retouch the generated files. | |
82 | rustdoc: rustdoc-core rustdoc-macros rustdoc-compiler_builtins \ | |
83 | rustdoc-alloc rustdoc-kernel | |
84 | $(Q)cp $(srctree)/Documentation/images/logo.svg $(objtree)/$(obj)/doc | |
85 | $(Q)cp $(srctree)/Documentation/images/COPYING-logo $(objtree)/$(obj)/doc | |
86 | $(Q)find $(objtree)/$(obj)/doc -name '*.html' -type f -print0 | xargs -0 sed -Ei \ | |
87 | -e 's:rust-logo\.svg:logo.svg:g' \ | |
88 | -e 's:rust-logo\.png:logo.svg:g' \ | |
89 | -e 's:favicon\.svg:logo.svg:g' \ | |
90 | -e 's:<link rel="alternate icon" type="image/png" href="[./]*favicon-(16x16|32x32)\.png">::g' | |
91 | $(Q)echo '.logo-container > img { object-fit: contain; }' \ | |
92 | >> $(objtree)/$(obj)/doc/rustdoc.css | |
93 | ||
94 | rustdoc-macros: private rustdoc_host = yes | |
95 | rustdoc-macros: private rustc_target_flags = --crate-type proc-macro \ | |
96 | --extern proc_macro | |
97 | rustdoc-macros: $(src)/macros/lib.rs FORCE | |
98 | $(call if_changed,rustdoc) | |
99 | ||
100 | rustdoc-core: private rustc_target_flags = $(core-cfgs) | |
101 | rustdoc-core: $(RUST_LIB_SRC)/core/src/lib.rs FORCE | |
102 | $(call if_changed,rustdoc) | |
103 | ||
104 | rustdoc-compiler_builtins: $(src)/compiler_builtins.rs rustdoc-core FORCE | |
105 | $(call if_changed,rustdoc) | |
106 | ||
107 | # We need to allow `rustdoc::broken_intra_doc_links` because some | |
108 | # `no_global_oom_handling` functions refer to non-`no_global_oom_handling` | |
109 | # functions. Ideally `rustdoc` would have a way to distinguish broken links | |
110 | # due to things that are "configured out" vs. entirely non-existing ones. | |
111 | rustdoc-alloc: private rustc_target_flags = $(alloc-cfgs) \ | |
112 | -Arustdoc::broken_intra_doc_links | |
113 | rustdoc-alloc: $(src)/alloc/lib.rs rustdoc-core rustdoc-compiler_builtins FORCE | |
114 | $(call if_changed,rustdoc) | |
115 | ||
116 | rustdoc-kernel: private rustc_target_flags = --extern alloc \ | |
ecaa6ddf | 117 | --extern build_error --extern macros=$(objtree)/$(obj)/libmacros.so \ |
2f7ab126 MO |
118 | --extern bindings |
119 | rustdoc-kernel: $(src)/kernel/lib.rs rustdoc-core rustdoc-macros \ | |
120 | rustdoc-compiler_builtins rustdoc-alloc $(obj)/libmacros.so \ | |
121 | $(obj)/bindings.o FORCE | |
122 | $(call if_changed,rustdoc) | |
123 | ||
124 | quiet_cmd_rustc_test_library = RUSTC TL $< | |
125 | cmd_rustc_test_library = \ | |
126 | OBJTREE=$(abspath $(objtree)) \ | |
127 | $(RUSTC) $(rust_common_flags) \ | |
128 | @$(objtree)/include/generated/rustc_cfg $(rustc_target_flags) \ | |
129 | --crate-type $(if $(rustc_test_library_proc),proc-macro,rlib) \ | |
130 | --out-dir $(objtree)/$(obj)/test --cfg testlib \ | |
131 | --sysroot $(objtree)/$(obj)/test/sysroot \ | |
132 | -L$(objtree)/$(obj)/test \ | |
133 | --crate-name $(subst rusttest-,,$(subst rusttestlib-,,$@)) $< | |
134 | ||
ecaa6ddf GG |
135 | rusttestlib-build_error: $(src)/build_error.rs rusttest-prepare FORCE |
136 | $(call if_changed,rustc_test_library) | |
137 | ||
2f7ab126 MO |
138 | rusttestlib-macros: private rustc_target_flags = --extern proc_macro |
139 | rusttestlib-macros: private rustc_test_library_proc = yes | |
140 | rusttestlib-macros: $(src)/macros/lib.rs rusttest-prepare FORCE | |
141 | $(call if_changed,rustc_test_library) | |
142 | ||
143 | rusttestlib-bindings: $(src)/bindings/lib.rs rusttest-prepare FORCE | |
144 | $(call if_changed,rustc_test_library) | |
145 | ||
146 | quiet_cmd_rustdoc_test = RUSTDOC T $< | |
147 | cmd_rustdoc_test = \ | |
148 | OBJTREE=$(abspath $(objtree)) \ | |
149 | $(RUSTDOC) --test $(rust_common_flags) \ | |
150 | @$(objtree)/include/generated/rustc_cfg \ | |
151 | $(rustc_target_flags) $(rustdoc_test_target_flags) \ | |
152 | --sysroot $(objtree)/$(obj)/test/sysroot $(rustdoc_test_quiet) \ | |
153 | -L$(objtree)/$(obj)/test --output $(objtree)/$(obj)/doc \ | |
154 | --crate-name $(subst rusttest-,,$@) $< | |
155 | ||
156 | # We cannot use `-Zpanic-abort-tests` because some tests are dynamic, | |
157 | # so for the moment we skip `-Cpanic=abort`. | |
158 | quiet_cmd_rustc_test = RUSTC T $< | |
159 | cmd_rustc_test = \ | |
160 | OBJTREE=$(abspath $(objtree)) \ | |
161 | $(RUSTC) --test $(rust_common_flags) \ | |
162 | @$(objtree)/include/generated/rustc_cfg \ | |
163 | $(rustc_target_flags) --out-dir $(objtree)/$(obj)/test \ | |
164 | --sysroot $(objtree)/$(obj)/test/sysroot \ | |
165 | -L$(objtree)/$(obj)/test \ | |
166 | --crate-name $(subst rusttest-,,$@) $<; \ | |
167 | $(objtree)/$(obj)/test/$(subst rusttest-,,$@) $(rust_test_quiet) \ | |
168 | $(rustc_test_run_flags) | |
169 | ||
170 | rusttest: rusttest-macros rusttest-kernel | |
171 | ||
172 | # This prepares a custom sysroot with our custom `alloc` instead of | |
173 | # the standard one. | |
174 | # | |
175 | # This requires several hacks: | |
176 | # - Unlike `core` and `alloc`, `std` depends on more than a dozen crates, | |
177 | # including third-party crates that need to be downloaded, plus custom | |
178 | # `build.rs` steps. Thus hardcoding things here is not maintainable. | |
179 | # - `cargo` knows how to build the standard library, but it is an unstable | |
180 | # feature so far (`-Zbuild-std`). | |
181 | # - `cargo` only considers the use case of building the standard library | |
182 | # to use it in a given package. Thus we need to create a dummy package | |
183 | # and pick the generated libraries from there. | |
184 | # - Since we only keep a subset of upstream `alloc` in-tree, we need | |
185 | # to recreate it on the fly by putting our sources on top. | |
186 | # - The usual ways of modifying the dependency graph in `cargo` do not seem | |
187 | # to apply for the `-Zbuild-std` steps, thus we have to mislead it | |
188 | # by modifying the sources in the sysroot. | |
189 | # - To avoid messing with the user's Rust installation, we create a clone | |
190 | # of the sysroot. However, `cargo` ignores `RUSTFLAGS` in the `-Zbuild-std` | |
191 | # steps, thus we use a wrapper binary passed via `RUSTC` to pass the flag. | |
192 | # | |
193 | # In the future, we hope to avoid the whole ordeal by either: | |
194 | # - Making the `test` crate not depend on `std` (either improving upstream | |
195 | # or having our own custom crate). | |
196 | # - Making the tests run in kernel space (requires the previous point). | |
197 | # - Making `std` and friends be more like a "normal" crate, so that | |
198 | # `-Zbuild-std` and related hacks are not needed. | |
199 | quiet_cmd_rustsysroot = RUSTSYSROOT | |
200 | cmd_rustsysroot = \ | |
201 | rm -rf $(objtree)/$(obj)/test; \ | |
202 | mkdir -p $(objtree)/$(obj)/test; \ | |
203 | cp -a $(rustc_sysroot) $(objtree)/$(obj)/test/sysroot; \ | |
204 | cp -r $(srctree)/$(src)/alloc/* \ | |
205 | $(objtree)/$(obj)/test/sysroot/lib/rustlib/src/rust/library/alloc/src; \ | |
206 | echo '\#!/bin/sh' > $(objtree)/$(obj)/test/rustc_sysroot; \ | |
207 | echo "$(RUSTC) --sysroot=$(abspath $(objtree)/$(obj)/test/sysroot) \"\$$@\"" \ | |
208 | >> $(objtree)/$(obj)/test/rustc_sysroot; \ | |
209 | chmod u+x $(objtree)/$(obj)/test/rustc_sysroot; \ | |
210 | $(CARGO) -q new $(objtree)/$(obj)/test/dummy; \ | |
211 | RUSTC=$(objtree)/$(obj)/test/rustc_sysroot $(CARGO) $(cargo_quiet) \ | |
212 | test -Zbuild-std --target $(rustc_host_target) \ | |
213 | --manifest-path $(objtree)/$(obj)/test/dummy/Cargo.toml; \ | |
214 | rm $(objtree)/$(obj)/test/sysroot/lib/rustlib/$(rustc_host_target)/lib/*; \ | |
215 | cp $(objtree)/$(obj)/test/dummy/target/$(rustc_host_target)/debug/deps/* \ | |
216 | $(objtree)/$(obj)/test/sysroot/lib/rustlib/$(rustc_host_target)/lib | |
217 | ||
218 | rusttest-prepare: FORCE | |
219 | $(call if_changed,rustsysroot) | |
220 | ||
221 | rusttest-macros: private rustc_target_flags = --extern proc_macro | |
222 | rusttest-macros: private rustdoc_test_target_flags = --crate-type proc-macro | |
223 | rusttest-macros: $(src)/macros/lib.rs rusttest-prepare FORCE | |
224 | $(call if_changed,rustc_test) | |
225 | $(call if_changed,rustdoc_test) | |
226 | ||
227 | rusttest-kernel: private rustc_target_flags = --extern alloc \ | |
ecaa6ddf | 228 | --extern build_error --extern macros --extern bindings |
2f7ab126 | 229 | rusttest-kernel: $(src)/kernel/lib.rs rusttest-prepare \ |
ecaa6ddf | 230 | rusttestlib-build_error rusttestlib-macros rusttestlib-bindings FORCE |
2f7ab126 MO |
231 | $(call if_changed,rustc_test) |
232 | $(call if_changed,rustc_test_library) | |
233 | ||
234 | filechk_rust_target = $(objtree)/scripts/generate_rust_target < $< | |
235 | ||
236 | $(obj)/target.json: $(objtree)/include/config/auto.conf FORCE | |
237 | $(call filechk,rust_target) | |
238 | ||
239 | ifdef CONFIG_CC_IS_CLANG | |
240 | bindgen_c_flags = $(c_flags) | |
241 | else | |
242 | # bindgen relies on libclang to parse C. Ideally, bindgen would support a GCC | |
243 | # plugin backend and/or the Clang driver would be perfectly compatible with GCC. | |
244 | # | |
245 | # For the moment, here we are tweaking the flags on the fly. This is a hack, | |
246 | # and some kernel configurations may not work (e.g. `GCC_PLUGIN_RANDSTRUCT` | |
247 | # if we end up using one of those structs). | |
248 | bindgen_skip_c_flags := -mno-fp-ret-in-387 -mpreferred-stack-boundary=% \ | |
249 | -mskip-rax-setup -mgeneral-regs-only -msign-return-address=% \ | |
250 | -mindirect-branch=thunk-extern -mindirect-branch-register \ | |
251 | -mfunction-return=thunk-extern -mrecord-mcount -mabi=lp64 \ | |
252 | -mindirect-branch-cs-prefix -mstack-protector-guard% -mtraceback=no \ | |
253 | -mno-pointers-to-nested-functions -mno-string \ | |
254 | -mno-strict-align -mstrict-align \ | |
255 | -fconserve-stack -falign-jumps=% -falign-loops=% \ | |
256 | -femit-struct-debug-baseonly -fno-ipa-cp-clone -fno-ipa-sra \ | |
257 | -fno-partial-inlining -fplugin-arg-arm_ssp_per_task_plugin-% \ | |
258 | -fno-reorder-blocks -fno-allow-store-data-races -fasan-shadow-offset=% \ | |
259 | -fzero-call-used-regs=% -fno-stack-clash-protection \ | |
260 | -fno-inline-functions-called-once \ | |
261 | --param=% --param asan-% | |
262 | ||
263 | # Derived from `scripts/Makefile.clang`. | |
264 | BINDGEN_TARGET_x86 := x86_64-linux-gnu | |
265 | BINDGEN_TARGET := $(BINDGEN_TARGET_$(SRCARCH)) | |
266 | ||
267 | # All warnings are inhibited since GCC builds are very experimental, | |
268 | # many GCC warnings are not supported by Clang, they may only appear in | |
269 | # some configurations, with new GCC versions, etc. | |
270 | bindgen_extra_c_flags = -w --target=$(BINDGEN_TARGET) | |
271 | ||
272 | bindgen_c_flags = $(filter-out $(bindgen_skip_c_flags), $(c_flags)) \ | |
273 | $(bindgen_extra_c_flags) | |
274 | endif | |
275 | ||
276 | ifdef CONFIG_LTO | |
277 | bindgen_c_flags_lto = $(filter-out $(CC_FLAGS_LTO), $(bindgen_c_flags)) | |
278 | else | |
279 | bindgen_c_flags_lto = $(bindgen_c_flags) | |
280 | endif | |
281 | ||
282 | bindgen_c_flags_final = $(bindgen_c_flags_lto) -D__BINDGEN__ | |
283 | ||
284 | quiet_cmd_bindgen = BINDGEN $@ | |
285 | cmd_bindgen = \ | |
286 | $(BINDGEN) $< $(bindgen_target_flags) \ | |
287 | --use-core --with-derive-default --ctypes-prefix core::ffi --no-layout-tests \ | |
288 | --no-debug '.*' \ | |
289 | --size_t-is-usize -o $@ -- $(bindgen_c_flags_final) -DMODULE \ | |
290 | $(bindgen_target_cflags) $(bindgen_target_extra) | |
291 | ||
292 | $(obj)/bindings/bindings_generated.rs: private bindgen_target_flags = \ | |
293 | $(shell grep -v '^\#\|^$$' $(srctree)/$(src)/bindgen_parameters) | |
294 | $(obj)/bindings/bindings_generated.rs: $(src)/bindings/bindings_helper.h \ | |
295 | $(src)/bindgen_parameters FORCE | |
296 | $(call if_changed_dep,bindgen) | |
297 | ||
298 | # See `CFLAGS_REMOVE_helpers.o` above. In addition, Clang on C does not warn | |
299 | # with `-Wmissing-declarations` (unlike GCC), so it is not strictly needed here | |
300 | # given it is `libclang`; but for consistency, future Clang changes and/or | |
301 | # a potential future GCC backend for `bindgen`, we disable it too. | |
302 | $(obj)/bindings/bindings_helpers_generated.rs: private bindgen_target_flags = \ | |
303 | --blacklist-type '.*' --whitelist-var '' \ | |
304 | --whitelist-function 'rust_helper_.*' | |
305 | $(obj)/bindings/bindings_helpers_generated.rs: private bindgen_target_cflags = \ | |
306 | -I$(objtree)/$(obj) -Wno-missing-prototypes -Wno-missing-declarations | |
307 | $(obj)/bindings/bindings_helpers_generated.rs: private bindgen_target_extra = ; \ | |
308 | sed -Ei 's/pub fn rust_helper_([a-zA-Z0-9_]*)/#[link_name="rust_helper_\1"]\n pub fn \1/g' $@ | |
309 | $(obj)/bindings/bindings_helpers_generated.rs: $(src)/helpers.c FORCE | |
310 | $(call if_changed_dep,bindgen) | |
311 | ||
312 | quiet_cmd_exports = EXPORTS $@ | |
313 | cmd_exports = \ | |
314 | $(NM) -p --defined-only $< \ | |
315 | | grep -E ' (T|R|D) ' | cut -d ' ' -f 3 \ | |
316 | | xargs -Isymbol \ | |
317 | echo 'EXPORT_SYMBOL_RUST_GPL(symbol);' > $@ | |
318 | ||
319 | $(obj)/exports_core_generated.h: $(obj)/core.o FORCE | |
320 | $(call if_changed,exports) | |
321 | ||
322 | $(obj)/exports_alloc_generated.h: $(obj)/alloc.o FORCE | |
323 | $(call if_changed,exports) | |
324 | ||
325 | $(obj)/exports_bindings_generated.h: $(obj)/bindings.o FORCE | |
326 | $(call if_changed,exports) | |
327 | ||
328 | $(obj)/exports_kernel_generated.h: $(obj)/kernel.o FORCE | |
329 | $(call if_changed,exports) | |
330 | ||
331 | quiet_cmd_rustc_procmacro = $(RUSTC_OR_CLIPPY_QUIET) P $@ | |
332 | cmd_rustc_procmacro = \ | |
333 | $(RUSTC_OR_CLIPPY) $(rust_common_flags) \ | |
334 | --emit=dep-info,link --extern proc_macro \ | |
335 | --crate-type proc-macro --out-dir $(objtree)/$(obj) \ | |
336 | --crate-name $(patsubst lib%.so,%,$(notdir $@)) $<; \ | |
337 | mv $(objtree)/$(obj)/$(patsubst lib%.so,%,$(notdir $@)).d $(depfile); \ | |
338 | sed -i '/^\#/d' $(depfile) | |
339 | ||
340 | # Procedural macros can only be used with the `rustc` that compiled it. | |
341 | # Therefore, to get `libmacros.so` automatically recompiled when the compiler | |
342 | # version changes, we add `core.o` as a dependency (even if it is not needed). | |
343 | $(obj)/libmacros.so: $(src)/macros/lib.rs $(obj)/core.o FORCE | |
344 | $(call if_changed_dep,rustc_procmacro) | |
345 | ||
346 | quiet_cmd_rustc_library = $(if $(skip_clippy),RUSTC,$(RUSTC_OR_CLIPPY_QUIET)) L $@ | |
347 | cmd_rustc_library = \ | |
348 | OBJTREE=$(abspath $(objtree)) \ | |
349 | $(if $(skip_clippy),$(RUSTC),$(RUSTC_OR_CLIPPY)) \ | |
350 | $(filter-out $(skip_flags),$(rust_flags) $(rustc_target_flags)) \ | |
351 | --emit=dep-info,obj,metadata --crate-type rlib \ | |
352 | --out-dir $(objtree)/$(obj) -L$(objtree)/$(obj) \ | |
353 | --crate-name $(patsubst %.o,%,$(notdir $@)) $<; \ | |
354 | mv $(objtree)/$(obj)/$(patsubst %.o,%,$(notdir $@)).d $(depfile); \ | |
355 | sed -i '/^\#/d' $(depfile) \ | |
356 | $(if $(rustc_objcopy),;$(OBJCOPY) $(rustc_objcopy) $@) | |
357 | ||
358 | rust-analyzer: | |
359 | $(Q)$(srctree)/scripts/generate_rust_analyzer.py $(srctree) $(objtree) \ | |
360 | $(RUST_LIB_SRC) > $(objtree)/rust-project.json | |
361 | ||
362 | $(obj)/core.o: private skip_clippy = 1 | |
363 | $(obj)/core.o: private skip_flags = -Dunreachable_pub | |
364 | $(obj)/core.o: private rustc_target_flags = $(core-cfgs) | |
365 | $(obj)/core.o: $(RUST_LIB_SRC)/core/src/lib.rs $(obj)/target.json FORCE | |
366 | $(call if_changed_dep,rustc_library) | |
367 | ||
368 | $(obj)/compiler_builtins.o: private rustc_objcopy = -w -W '__*' | |
369 | $(obj)/compiler_builtins.o: $(src)/compiler_builtins.rs $(obj)/core.o FORCE | |
370 | $(call if_changed_dep,rustc_library) | |
371 | ||
372 | $(obj)/alloc.o: private skip_clippy = 1 | |
373 | $(obj)/alloc.o: private skip_flags = -Dunreachable_pub | |
374 | $(obj)/alloc.o: private rustc_target_flags = $(alloc-cfgs) | |
375 | $(obj)/alloc.o: $(src)/alloc/lib.rs $(obj)/compiler_builtins.o FORCE | |
376 | $(call if_changed_dep,rustc_library) | |
377 | ||
ecaa6ddf GG |
378 | $(obj)/build_error.o: $(src)/build_error.rs $(obj)/compiler_builtins.o FORCE |
379 | $(call if_changed_dep,rustc_library) | |
380 | ||
2f7ab126 MO |
381 | $(obj)/bindings.o: $(src)/bindings/lib.rs \ |
382 | $(obj)/compiler_builtins.o \ | |
383 | $(obj)/bindings/bindings_generated.rs \ | |
384 | $(obj)/bindings/bindings_helpers_generated.rs FORCE | |
385 | $(call if_changed_dep,rustc_library) | |
386 | ||
387 | $(obj)/kernel.o: private rustc_target_flags = --extern alloc \ | |
ecaa6ddf GG |
388 | --extern build_error --extern macros --extern bindings |
389 | $(obj)/kernel.o: $(src)/kernel/lib.rs $(obj)/alloc.o $(obj)/build_error.o \ | |
2f7ab126 MO |
390 | $(obj)/libmacros.so $(obj)/bindings.o FORCE |
391 | $(call if_changed_dep,rustc_library) | |
392 | ||
393 | endif # CONFIG_RUST |