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authorMatthias Maennich <maennich@google.com>2019-10-18 10:31:42 +0100
committerJessica Yu <jeyu@kernel.org>2019-10-18 15:32:52 +0200
commit69923208431e097ce3830647aee98e5bd3e889c8 (patch)
tree74d8d13df73eeb046385a55dfd3f1f6db1febe0f /scripts/nsdeps
parent9ae5bd1847566e079ffb7607394389ac54815f2b (diff)
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: 8651ec01daed ("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>
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