diff options
author | Masahiro Yamada <yamada.masahiro@socionext.com> | 2019-10-29 13:38:07 +0100 |
---|---|---|
committer | Masahiro Yamada <yamada.masahiro@socionext.com> | 2019-11-11 12:10:01 +0100 |
commit | bbc55bded4aaf47d6f2bd9389fc8d3a3821d18c0 (patch) | |
tree | 4530ad6400d9e0798059644098cf66bbb15da074 /scripts/nsdeps | |
parent | modpost: free ns_deps_buf.p after writing ns_deps files (diff) | |
download | linux-bbc55bded4aaf47d6f2bd9389fc8d3a3821d18c0.tar.xz linux-bbc55bded4aaf47d6f2bd9389fc8d3a3821d18c0.zip |
modpost: dump missing namespaces into a single modules.nsdeps file
The modpost, with the -d option given, generates per-module .ns_deps
files.
Kbuild generates per-module .mod files to carry module information.
This is convenient because Make handles multiple jobs in parallel
when the -j option is given.
On the other hand, the modpost always runs as a single thread.
I do not see a strong reason to produce separate .ns_deps files.
This commit changes the modpost to generate just one file,
modules.nsdeps, each line of which has the following format:
<module_name>: <list of missing namespaces>
Please note it contains *missing* namespaces instead of required ones.
So, modules.nsdeps is empty if the namespace dependency is all good.
This will work more efficiently because spatch will no longer process
already imported namespaces. I removed the '(if needed)' from the
nsdeps log since spatch is invoked only when needed.
This also solves the stale .ns_deps problem reported by Jessica Yu:
https://lkml.org/lkml/2019/10/28/467
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>
Diffstat (limited to 'scripts/nsdeps')
-rw-r--r-- | scripts/nsdeps | 21 |
1 files changed, 10 insertions, 11 deletions
diff --git a/scripts/nsdeps b/scripts/nsdeps index 04cea0921673..f802c6f7b860 100644 --- a/scripts/nsdeps +++ b/scripts/nsdeps @@ -27,15 +27,14 @@ generate_deps_for_ns() { } generate_deps() { - local mod_name=`basename $@ .ko` - local mod_file=`echo $@ | sed -e 's/\.ko/\.mod/'` - local ns_deps_file=`echo $@ | sed -e 's/\.ko/\.ns_deps/'` - if [ ! -f "$ns_deps_file" ]; then return; fi - local mod_source_files="`cat $mod_file | sed -n 1p \ + local mod=${1%.ko:} + shift + local namespaces="$*" + local mod_source_files="`cat $mod.mod | sed -n 1p \ | sed -e 's/\.o/\.c/g' \ | sed "s|[^ ]* *|${srctree}/&|g"`" - for ns in `cat $ns_deps_file`; do - echo "Adding namespace $ns to module $mod_name (if needed)." + for ns in $namespaces; do + echo "Adding namespace $ns to module $mod.ko." generate_deps_for_ns $ns "$mod_source_files" # sort the imports for source_file in $mod_source_files; do @@ -52,7 +51,7 @@ generate_deps() { done } -for f in `cat $objtree/modules.order`; do - generate_deps $f -done - +while read line +do + generate_deps $line +done < modules.nsdeps |