linux/scripts/mod
Matthias Maennich 6992320843 symbol namespaces: revert to previous __ksymtab name scheme
The introduction of Symbol Namespaces changed the naming schema of the
__ksymtab entries from __kysmtab__symbol to __ksymtab_NAMESPACE.symbol.

That caused some breakages in tools that depend on the name layout in
either the binaries(vmlinux,*.ko) or in System.map. E.g. kmod's depmod
would not be able to read System.map without a patch to support symbol
namespaces. A warning reported by depmod for namespaced symbols would
look like

  depmod: WARNING: [...]/uas.ko needs unknown symbol usb_stor_adjust_quirks

In order to address this issue, revert to the original naming scheme and
rather read the __kstrtabns_<symbol> entries and their corresponding
values from __ksymtab_strings to update the namespace values for
symbols. After having read all symbols and handled them in
handle_modversions(), the symbols are created. In a second pass, read
the __kstrtabns_ entries and update the namespaces accordingly.

Fixes: 8651ec01da ("module: add support for symbol namespaces.")
Reported-by: Stefan Wahren <stefan.wahren@i2se.com>
Suggested-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Will Deacon <will@kernel.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Matthias Maennich <maennich@google.com>
Signed-off-by: Jessica Yu <jeyu@kernel.org>
2019-10-18 15:32:52 +02:00
..
.gitignore kbuild: trivial - remove trailing empty lines 2014-06-10 00:04:06 +02:00
Makefile kbuild: move modpost out of 'scripts' target 2018-12-01 23:09:34 +09:00
devicetable-offsets.c platform-drivers-x86 for v5.1-1 2019-03-10 13:16:37 -07:00
empty.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
file2alias.c modpost: add guid_t type definition 2019-09-04 22:55:42 +09:00
mk_elfconfig.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
modpost.c symbol namespaces: revert to previous __ksymtab name scheme 2019-10-18 15:32:52 +02:00
modpost.h symbol namespaces: revert to previous __ksymtab name scheme 2019-10-18 15:32:52 +02:00
sumversion.c kbuild: remove the first line of *.mod files 2019-07-18 02:19:31 +09:00