tree 39ae4fd8d46ddfa53f814e08448095ad40acffb8
parent 1a9df0572f3a7098e269e7644077d4a452123de6
author Ard Biesheuvel <ard.biesheuvel@linaro.org> 1485458685 +0000
committer Ard Biesheuvel <ard.biesheuvel@linaro.org> 1485863259 +0000

efi: libstub: Preserve .debug sections after absolute relocation check

The build commands for the ARM and arm64 EFI stubs strip the .debug
sections and other sections that may legally contain absolute relocations,
in order to inspect the remaining sections for the presence of such
relocations.

This leaves us without debugging symbols in the stub for no good reason,
considering that these sections are omitted from the kernel binary anyway,
and that these relocations are thus only consumed by users of the ELF
binary, such as debuggers.

So move to 'strip' for performing the relocation check, and if it succeeds,
invoke objcopy as before, but leaving the .debug sections in place. Note
that these sections may refer to ksymtab/kcrctab contents, so leave those
in place as well.

Cc: Matt Fleming <matt@codeblueprint.co.uk>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>