tree 3c66d858c05e55a24bc624db84767aa6f7aa09dd
parent 785d74ec3bbf26ac7f6e92e6e96a259aec0f107a
author Xiao Yang <yangx.jy@cn.fujitsu.com> 1584527656 +0800
committer Masahiro Yamada <masahiroy@kernel.org> 1584549865 +0900

modpost: Get proper section index by get_secindex() instead of st_shndx

(uint16_t) st_shndx is limited to 65535(i.e. SHN_XINDEX) so sym_get_data() gets
wrong section index by st_shndx if requested symbol contains extended section
index that is more than 65535.  In this case, we need to get proper section index
by .symtab_shndx section.

Module.symvers generated by building kernel with "-ffunction-sections -fdata-sections"
shows the issue.

Fixes: 56067812d5b0 ("kbuild: modversions: add infrastructure for emitting relative CRCs")
Fixes: e84f9fbbece1 ("modpost: refactor namespace_from_kstrtabns() to not hard-code section name")
Signed-off-by: Xiao Yang <yangx.jy@cn.fujitsu.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>