modpost: refactor namespace_from_kstrtabns() to not hard-code section name
authorMasahiro Yamada <yamada.masahiro@socionext.com>
Thu, 14 Nov 2019 17:42:22 +0000 (02:42 +0900)
committerMasahiro Yamada <yamada.masahiro@socionext.com>
Sat, 23 Nov 2019 03:44:24 +0000 (12:44 +0900)
commite84f9fbbece1585f45a03ccc11eeabe121cadc1b
tree8fcbd511a90a6bf6b986b1fc101c151c86353923
parentafa0459daa7b08c7b2c879705b69d39b734a11d0
modpost: refactor namespace_from_kstrtabns() to not hard-code section name

Currently, namespace_from_kstrtabns() relies on the fact that
namespace strings are recorded in the __ksymtab_strings section.
Actually, it is coded in include/linux/export.h, but modpost does
not need to hard-code the section name.

Elf_Sym::st_shndx holds the index of the relevant section. Using it is
a more portable way to get the namespace string.

Make namespace_from_kstrtabns() simply call sym_get_data(), and delete
the info->ksymtab_strings .

While I was here, I added more 'const' qualifiers to pointers.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
scripts/mod/modpost.c
scripts/mod/modpost.h