diff options
| author |   Masahiro Yamada <yamada.masahiro@socionext.com> | 2019-10-29 21:38:08 +0900 |
|---|---|---|
| committer | Masahiro Yamada <yamada.masahiro@socionext.com> | 2019-11-11 20:10:01 +0900 |
| commit | bc35d4bda205d85bf8f87bb013a59afb6b87bc89 (patch) | |
| tree | 80d48daefcea848af9cb83c6a520848895ce4c68 | |
| parent | modpost: dump missing namespaces into a single modules.nsdeps file (diff) | |
| download | linux-dev-bc35d4bda205d85bf8f87bb013a59afb6b87bc89.tar.xz linux-dev-bc35d4bda205d85bf8f87bb013a59afb6b87bc89.zip | |
scripts/nsdeps: support nsdeps for external module builds
scripts/nsdeps is written to take care of only in-tree modules.
Perhaps, this is not a bug, but just a design. At least,
Documentation/core-api/symbol-namespaces.rst focuses on in-tree modules.
Having said that, some people already tried nsdeps for external modules.
So, it would be nice to support it.
Reported-by: Steve French <smfrench@gmail.com>
Reported-by: Jessica Yu <jeyu@kernel.org>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Tested-by: Jessica Yu <jeyu@kernel.org>
Acked-by: Jessica Yu <jeyu@kernel.org>
Reviewed-by: Matthias Maennich <maennich@google.com>
Tested-by: Matthias Maennich <maennich@google.com>
| -rw-r--r-- | Documentation/core-api/symbol-namespaces.rst | 3 | ||||
| -rw-r--r-- | Makefile | 3 | ||||
| -rw-r--r-- | scripts/Makefile.modpost | 2 | ||||
| -rw-r--r-- | scripts/nsdeps | 10 |
4 files changed, 14 insertions, 4 deletions
diff --git a/Documentation/core-api/symbol-namespaces.rst b/Documentation/core-api/symbol-namespaces.rst index 982ed7b568ac..9b76337f6756 100644 --- a/Documentation/core-api/symbol-namespaces.rst +++ b/Documentation/core-api/symbol-namespaces.rst @@ -152,3 +152,6 @@ in-tree modules:: - notice the warning of modpost telling about a missing import - run `make nsdeps` to add the import to the correct code location +You can also run nsdeps for external module builds. A typical usage is:: + + $ make -C <path_to_kernel_src> M=$PWD nsdeps @@ -1008,6 +1008,7 @@ endif PHONY += prepare0 export MODORDER := $(extmod-prefix)modules.order +export MODULES_NSDEPS := $(extmod-prefix)modules.nsdeps ifeq ($(KBUILD_EXTMOD),) core-y += kernel/ certs/ mm/ fs/ ipc/ security/ crypto/ block/ @@ -1620,7 +1621,7 @@ _emodinst_post: _emodinst_ $(call cmd,depmod) clean-dirs := $(KBUILD_EXTMOD) -clean: rm-files := $(KBUILD_EXTMOD)/Module.symvers +clean: rm-files := $(KBUILD_EXTMOD)/Module.symvers $(KBUILD_EXTMOD)/modules.nsdeps PHONY += / /: diff --git a/scripts/Makefile.modpost b/scripts/Makefile.modpost index 62e127028b48..69897d5d3a70 100644 --- a/scripts/Makefile.modpost +++ b/scripts/Makefile.modpost @@ -66,7 +66,7 @@ __modpost: else MODPOST += $(subst -i,-n,$(filter -i,$(MAKEFLAGS))) -s -T - \ - $(if $(KBUILD_NSDEPS),-d modules.nsdeps) + $(if $(KBUILD_NSDEPS),-d $(MODULES_NSDEPS)) ifeq ($(KBUILD_EXTMOD),) MODPOST += $(wildcard vmlinux) diff --git a/scripts/nsdeps b/scripts/nsdeps index f802c6f7b860..03a8e7cbe6c7 100644 --- a/scripts/nsdeps +++ b/scripts/nsdeps @@ -21,6 +21,12 @@ if [ "$SPATCH_VERSION_NUM" -lt "$SPATCH_REQ_VERSION_NUM" ] ; then exit 1 fi +if [ "$KBUILD_EXTMOD" ]; then + src_prefix= +else + src_prefix=$srctree/ +fi + generate_deps_for_ns() { $SPATCH --very-quiet --in-place --sp-file \ $srctree/scripts/coccinelle/misc/add_namespace.cocci -D ns=$1 $2 @@ -32,7 +38,7 @@ generate_deps() { local namespaces="$*" local mod_source_files="`cat $mod.mod | sed -n 1p \ | sed -e 's/\.o/\.c/g' \ - | sed "s|[^ ]* *|${srctree}/&|g"`" + | sed "s|[^ ]* *|${src_prefix}&|g"`" for ns in $namespaces; do echo "Adding namespace $ns to module $mod.ko." generate_deps_for_ns $ns "$mod_source_files" @@ -54,4 +60,4 @@ generate_deps() { while read line do generate_deps $line -done < modules.nsdeps +done < $MODULES_NSDEPS |