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| author | Masahiro Yamada <masahiroy@kernel.org> | 2022-04-07 00:30:20 +0900 |
|---|---|---|
| committer | Masahiro Yamada <masahiroy@kernel.org> | 2022-05-08 03:16:59 +0900 |
| commit | 9413e7640564fe70b24ea1a9ff3fb92c5bb52fcb (patch) | |
| tree | efb106529373b6c24577df146c8e3afc90fe0e8e /scripts/gen_autoksyms.sh | |
| parent | b3591e061919c837c14680c1ceff8f009ed0afb4 (diff) | |
| download | linux-9413e7640564fe70b24ea1a9ff3fb92c5bb52fcb.tar.bz2 | |
kbuild: split the second line of *.mod into *.usyms
The *.mod files have two lines; the first line lists the member objects
of the module, and the second line, if CONFIG_TRIM_UNUSED_KSYMS=y, lists
the undefined symbols.
Currently, we generate *.mod after constructing composite modules,
otherwise, we cannot compute the second line. No prerequisite is
required to print the first line.
They are orthogonal. Splitting them into separate commands will ease
further cleanups.
This commit splits the list of undefined symbols out to *.usyms files.
Previously, the list of undefined symbols ended up with a very long
line, but now it has one symbol per line.
Use sed like we did before commit 7d32358be8ac ("kbuild: avoid split
lines in .mod files").
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
Diffstat (limited to 'scripts/gen_autoksyms.sh')
| -rwxr-xr-x | scripts/gen_autoksyms.sh | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/scripts/gen_autoksyms.sh b/scripts/gen_autoksyms.sh index 120225c541c5..faacf7062122 100755 --- a/scripts/gen_autoksyms.sh +++ b/scripts/gen_autoksyms.sh @@ -2,13 +2,10 @@ # SPDX-License-Identifier: GPL-2.0-only # Create an autoksyms.h header file from the list of all module's needed symbols -# as recorded on the second line of *.mod files and the user-provided symbol -# whitelist. +# as recorded in *.usyms files and the user-provided symbol whitelist. set -e -output_file="$1" - # Use "make V=1" to debug this script. case "$KBUILD_VERBOSE" in *1*) @@ -16,6 +13,15 @@ case "$KBUILD_VERBOSE" in ;; esac +read_modorder= + +if [ "$1" = --modorder ]; then + shift + read_modorder=1 +fi + +output_file="$1" + needed_symbols= # Special case for modversions (see modpost.c) @@ -41,10 +47,8 @@ cat > "$output_file" << EOT EOT -[ -f modules.order ] && modlist=modules.order || modlist=/dev/null - { - sed 's/ko$/mod/' $modlist | xargs -n1 sed -n -e '2p' + [ -n "${read_modorder}" ] && sed 's/ko$/usyms/' modules.order | xargs cat echo "$needed_symbols" [ -n "$ksym_wl" ] && cat "$ksym_wl" } | sed -e 's/ /\n/g' | sed -n -e '/^$/!p' | |