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-rw-r--r--rust/Makefile16
1 files changed, 3 insertions, 13 deletions
diff --git a/rust/Makefile b/rust/Makefile
index 86a125c4243c..eb585ef0e286 100644
--- a/rust/Makefile
+++ b/rust/Makefile
@@ -61,15 +61,9 @@ core-cfgs = \
--cfg no_fp_fmt_parse
alloc-cfgs = \
- --cfg no_borrow \
- --cfg no_fmt \
--cfg no_global_oom_handling \
- --cfg no_macros \
--cfg no_rc \
- --cfg no_str \
- --cfg no_string \
- --cfg no_sync \
- --cfg no_thin
+ --cfg no_sync
quiet_cmd_rustdoc = RUSTDOC $(if $(rustdoc_host),H, ) $<
cmd_rustdoc = \
@@ -123,7 +117,7 @@ rustdoc-compiler_builtins: $(src)/compiler_builtins.rs rustdoc-core FORCE
# 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: $(src)/alloc/lib.rs rustdoc-core rustdoc-compiler_builtins FORCE
+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 \
@@ -218,8 +212,6 @@ rusttest: rusttest-macros rusttest-kernel
# - `cargo` only considers the use case of building the standard library
# to use it in a given package. Thus we need to create a dummy package
# and pick the generated libraries from there.
-# - Since we only keep a subset of upstream `alloc` in-tree, we need
-# to recreate it on the fly by putting our sources on top.
# - The usual ways of modifying the dependency graph in `cargo` do not seem
# to apply for the `-Zbuild-std` steps, thus we have to mislead it
# by modifying the sources in the sysroot.
@@ -238,8 +230,6 @@ quiet_cmd_rustsysroot = RUSTSYSROOT
rm -rf $(objtree)/$(obj)/test; \
mkdir -p $(objtree)/$(obj)/test; \
cp -a $(rustc_sysroot) $(objtree)/$(obj)/test/sysroot; \
- cp -r $(srctree)/$(src)/alloc/* \
- $(objtree)/$(obj)/test/sysroot/lib/rustlib/src/rust/library/alloc/src; \
echo '\#!/bin/sh' > $(objtree)/$(obj)/test/rustc_sysroot; \
echo "$(RUSTC) --sysroot=$(abspath $(objtree)/$(obj)/test/sysroot) \"\$$@\"" \
>> $(objtree)/$(obj)/test/rustc_sysroot; \
@@ -447,7 +437,7 @@ $(obj)/compiler_builtins.o: $(src)/compiler_builtins.rs $(obj)/core.o FORCE
$(obj)/alloc.o: private skip_clippy = 1
$(obj)/alloc.o: private skip_flags = -Dunreachable_pub
$(obj)/alloc.o: private rustc_target_flags = $(alloc-cfgs)
-$(obj)/alloc.o: $(src)/alloc/lib.rs $(obj)/compiler_builtins.o FORCE
+$(obj)/alloc.o: $(RUST_LIB_SRC)/alloc/src/lib.rs $(obj)/compiler_builtins.o FORCE
+$(call if_changed_dep,rustc_library)
$(obj)/build_error.o: $(src)/build_error.rs $(obj)/compiler_builtins.o FORCE