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-rw-r--r--rust/Makefile8
1 files changed, 6 insertions, 2 deletions
diff --git a/rust/Makefile b/rust/Makefile
index 99bc3eea44a6..fa0eea8a9eca 100644
--- a/rust/Makefile
+++ b/rust/Makefile
@@ -60,10 +60,14 @@ endif
core-cfgs = \
--cfg no_fp_fmt_parse
+# `rustc` recognizes `--remap-path-prefix` since 1.26.0, but `rustdoc` only
+# since Rust 1.81.0. Moreover, `rustdoc` ICEs on out-of-tree builds since Rust
+# 1.82.0 (https://github.com/rust-lang/rust/issues/138520). Thus workaround both
+# issues skipping the flag. The former also applies to `RUSTDOC TK`.
quiet_cmd_rustdoc = RUSTDOC $(if $(rustdoc_host),H, ) $<
cmd_rustdoc = \
OBJTREE=$(abspath $(objtree)) \
- $(RUSTDOC) $(filter-out $(skip_flags),$(if $(rustdoc_host),$(rust_common_flags),$(rust_flags))) \
+ $(RUSTDOC) $(filter-out $(skip_flags) --remap-path-prefix=%,$(if $(rustdoc_host),$(rust_common_flags),$(rust_flags))) \
$(rustc_target_flags) -L$(objtree)/$(obj) \
-Zunstable-options --generate-link-to-definition \
--output $(rustdoc_output) \
@@ -199,7 +203,7 @@ quiet_cmd_rustdoc_test_kernel = RUSTDOC TK $<
rm -rf $(objtree)/$(obj)/test/doctests/kernel; \
mkdir -p $(objtree)/$(obj)/test/doctests/kernel; \
OBJTREE=$(abspath $(objtree)) \
- $(RUSTDOC) --test $(rust_flags) \
+ $(RUSTDOC) --test $(filter-out --remap-path-prefix=%,$(rust_flags)) \
-L$(objtree)/$(obj) --extern ffi --extern pin_init \
--extern kernel --extern build_error --extern macros \
--extern bindings --extern uapi \