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-rw-r--r--rust/Makefile43
1 files changed, 10 insertions, 33 deletions
diff --git a/rust/Makefile b/rust/Makefile
index 0856fd6bc610..3678e79317f1 100644
--- a/rust/Makefile
+++ b/rust/Makefile
@@ -15,8 +15,8 @@ always-$(CONFIG_RUST) += libmacros.so
no-clean-files += libmacros.so
always-$(CONFIG_RUST) += bindings/bindings_generated.rs bindings/bindings_helpers_generated.rs
-obj-$(CONFIG_RUST) += alloc.o bindings.o kernel.o
-always-$(CONFIG_RUST) += exports_alloc_generated.h exports_helpers_generated.h \
+obj-$(CONFIG_RUST) += bindings.o kernel.o
+always-$(CONFIG_RUST) += exports_helpers_generated.h \
exports_bindings_generated.h exports_kernel_generated.h
always-$(CONFIG_RUST) += uapi/uapi_generated.rs
@@ -53,11 +53,6 @@ endif
core-cfgs = \
--cfg no_fp_fmt_parse
-alloc-cfgs = \
- --cfg no_global_oom_handling \
- --cfg no_rc \
- --cfg no_sync
-
quiet_cmd_rustdoc = RUSTDOC $(if $(rustdoc_host),H, ) $<
cmd_rustdoc = \
OBJTREE=$(abspath $(objtree)) \
@@ -81,7 +76,7 @@ quiet_cmd_rustdoc = RUSTDOC $(if $(rustdoc_host),H, ) $<
# command-like flags to solve the issue. Meanwhile, we use the non-custom case
# and then retouch the generated files.
rustdoc: rustdoc-core rustdoc-macros rustdoc-compiler_builtins \
- rustdoc-alloc rustdoc-kernel
+ rustdoc-kernel
$(Q)cp $(srctree)/Documentation/images/logo.svg $(rustdoc_output)/static.files/
$(Q)cp $(srctree)/Documentation/images/COPYING-logo $(rustdoc_output)/static.files/
$(Q)find $(rustdoc_output) -name '*.html' -type f -print0 | xargs -0 sed -Ei \
@@ -108,20 +103,11 @@ rustdoc-core: $(RUST_LIB_SRC)/core/src/lib.rs FORCE
rustdoc-compiler_builtins: $(src)/compiler_builtins.rs rustdoc-core FORCE
+$(call if_changed,rustdoc)
-# We need to allow `rustdoc::broken_intra_doc_links` because some
-# `no_global_oom_handling` functions refer to non-`no_global_oom_handling`
-# functions. Ideally `rustdoc` would have a way to distinguish broken links
-# due to things that are "configured out" vs. entirely non-existing ones.
-rustdoc-alloc: private rustc_target_flags = $(alloc-cfgs) \
- -Arustdoc::broken_intra_doc_links
-rustdoc-alloc: $(RUST_LIB_SRC)/alloc/src/lib.rs rustdoc-core rustdoc-compiler_builtins FORCE
- +$(call if_changed,rustdoc)
-
-rustdoc-kernel: private rustc_target_flags = --extern alloc \
+rustdoc-kernel: private rustc_target_flags = \
--extern build_error --extern macros=$(objtree)/$(obj)/libmacros.so \
--extern bindings --extern uapi
rustdoc-kernel: $(src)/kernel/lib.rs rustdoc-core rustdoc-macros \
- rustdoc-compiler_builtins rustdoc-alloc $(obj)/libmacros.so \
+ rustdoc-compiler_builtins $(obj)/libmacros.so \
$(obj)/bindings.o FORCE
+$(call if_changed,rustdoc)
@@ -165,7 +151,7 @@ quiet_cmd_rustdoc_test_kernel = RUSTDOC TK $<
mkdir -p $(objtree)/$(obj)/test/doctests/kernel; \
OBJTREE=$(abspath $(objtree)) \
$(RUSTDOC) --test $(rust_flags) \
- -L$(objtree)/$(obj) --extern alloc --extern kernel \
+ -L$(objtree)/$(obj) --extern kernel \
--extern build_error --extern macros \
--extern bindings --extern uapi \
--no-run --crate-name kernel -Zunstable-options \
@@ -201,7 +187,7 @@ rusttest-macros: $(src)/macros/lib.rs FORCE
+$(call if_changed,rustc_test)
+$(call if_changed,rustdoc_test)
-rusttest-kernel: private rustc_target_flags = --extern alloc \
+rusttest-kernel: private rustc_target_flags = \
--extern build_error --extern macros --extern bindings --extern uapi
rusttest-kernel: $(src)/kernel/lib.rs \
rusttestlib-build_error rusttestlib-macros rusttestlib-bindings \
@@ -314,9 +300,6 @@ quiet_cmd_exports = EXPORTS $@
$(obj)/exports_core_generated.h: $(obj)/core.o FORCE
$(call if_changed,exports)
-$(obj)/exports_alloc_generated.h: $(obj)/alloc.o FORCE
- $(call if_changed,exports)
-
# Even though Rust kernel modules should never use the bindings directly,
# symbols from the `bindings` crate and the C helpers need to be exported
# because Rust generics and inlined functions may not get their code generated
@@ -363,7 +346,7 @@ quiet_cmd_rustc_library = $(if $(skip_clippy),RUSTC,$(RUSTC_OR_CLIPPY_QUIET)) L
rust-analyzer:
$(Q)$(srctree)/scripts/generate_rust_analyzer.py \
- --cfgs='core=$(core-cfgs)' --cfgs='alloc=$(alloc-cfgs)' \
+ --cfgs='core=$(core-cfgs)' \
$(realpath $(srctree)) $(realpath $(objtree)) \
$(rustc_sysroot) $(RUST_LIB_SRC) $(KBUILD_EXTMOD) > \
$(if $(KBUILD_EXTMOD),$(extmod_prefix),$(objtree))/rust-project.json
@@ -401,12 +384,6 @@ $(obj)/compiler_builtins.o: private rustc_objcopy = -w -W '__*'
$(obj)/compiler_builtins.o: $(src)/compiler_builtins.rs $(obj)/core.o FORCE
+$(call if_changed_rule,rustc_library)
-$(obj)/alloc.o: private skip_clippy = 1
-$(obj)/alloc.o: private skip_flags = -Wunreachable_pub
-$(obj)/alloc.o: private rustc_target_flags = $(alloc-cfgs)
-$(obj)/alloc.o: $(RUST_LIB_SRC)/alloc/src/lib.rs $(obj)/compiler_builtins.o FORCE
- +$(call if_changed_rule,rustc_library)
-
$(obj)/build_error.o: $(src)/build_error.rs $(obj)/compiler_builtins.o FORCE
+$(call if_changed_rule,rustc_library)
@@ -421,9 +398,9 @@ $(obj)/uapi.o: $(src)/uapi/lib.rs \
$(obj)/uapi/uapi_generated.rs FORCE
+$(call if_changed_rule,rustc_library)
-$(obj)/kernel.o: private rustc_target_flags = --extern alloc \
+$(obj)/kernel.o: private rustc_target_flags = \
--extern build_error --extern macros --extern bindings --extern uapi
-$(obj)/kernel.o: $(src)/kernel/lib.rs $(obj)/alloc.o $(obj)/build_error.o \
+$(obj)/kernel.o: $(src)/kernel/lib.rs $(obj)/build_error.o \
$(obj)/libmacros.so $(obj)/bindings.o $(obj)/uapi.o FORCE
+$(call if_changed_rule,rustc_library)