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-rw-r--r--scripts/Makefile.lib21
1 files changed, 21 insertions, 0 deletions
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index 2fe73cda0bdd..2b332645e0c2 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -169,6 +169,9 @@ ifeq ($(CONFIG_KCOV),y)
_c_flags += $(if $(patsubst n%,, \
$(KCOV_INSTRUMENT_$(target-stem).o)$(KCOV_INSTRUMENT)$(if $(is-kernel-object),$(CONFIG_KCOV_INSTRUMENT_ALL))), \
$(CFLAGS_KCOV))
+_rust_flags += $(if $(patsubst n%,, \
+ $(KCOV_INSTRUMENT_$(target-stem).o)$(KCOV_INSTRUMENT)$(if $(is-kernel-object),$(CONFIG_KCOV_INSTRUMENT_ALL))), \
+ $(RUSTFLAGS_KCOV))
endif
#
@@ -296,6 +299,19 @@ $(foreach m, $1, \
$(addprefix $(obj)/, $(call suffix-search, $(patsubst $(obj)/%,%,$m), $2, $3))))
endef
+# Remove ".." and "." from a path, without using "realpath"
+# Usage:
+# $(call normalize_path,path/to/../file)
+define normalize_path
+$(strip $(eval elements :=) \
+$(foreach elem,$(subst /, ,$1), \
+ $(if $(filter-out .,$(elem)), \
+ $(if $(filter ..,$(elem)), \
+ $(eval elements := $(wordlist 2,$(words $(elements)),x $(elements))), \
+ $(eval elements := $(elements) $(elem))))) \
+$(subst $(space),/,$(elements)))
+endef
+
# Build commands
# ===========================================================================
# These are shared by some Makefile.* files.
@@ -343,6 +359,11 @@ quiet_cmd_copy = COPY $@
$(obj)/%: $(src)/%_shipped
$(call cmd,copy)
+# Touch a file
+# ===========================================================================
+quiet_cmd_touch = TOUCH $(call normalize_path,$@)
+ cmd_touch = touch $@
+
# Commands useful for building a boot image
# ===========================================================================
#