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kbuild: exclude .rodata.(cst|str)* when building ranges

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The .rodata.(cst|str)* sections are often resized during the final
linking and since these sections do not cover actual symbols there is
no need to include them in the modules.builtin.ranges data.

When these sections were included in processing and resizing occurred,
modules were reported with ranges that extended beyond their true end,
causing subsequent symbols (in address order) to be associated with
the wrong module.

Fixes: 5f5e7344322f ("kbuild: generate offset range data for builtin modules")
Cc: stable@vger.kernel.org
Signed-off-by: Kris Van Hees <kris.van.hees@oracle.com>
Reviewed-by: Jack Vogel <jack.vogel@oracle.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
This commit is contained in:
Kris Van Hees 2025-03-07 11:53:28 -05:00 committed by Masahiro Yamada
parent eb47ee0181
commit 87bb368d06
1 changed files with 5 additions and 0 deletions
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5
scripts/generate_builtin_ranges.awk
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@ -282,6 +282,11 @@ ARGIND == 2 && !anchor && NF == 2 && $1 ~ /^0x/ && $2 !~ /^0x/ {
# section.
#
ARGIND == 2 && sect && NF == 4 && /^ [^ \*]/ && !($1 in sect_addend) {
# There are a few sections with constant data (without symbols) that
# can get resized during linking, so it is best to ignore them.
if ($1 ~ /^\.rodata\.(cst|str)[0-9]/)
next;
if (!($1 in sect_base)) {
sect_base[$1] = base;