Messages in this thread | | | From | Florian Weimer <> | Subject | Re: [PATCH v7 22/27] binfmt_elf: Extract .note.gnu.property from an ELF file | Date | Tue, 18 Jun 2019 18:05:24 +0200 |
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* Yu-cheng Yu:
>> I assumed that it would also parse the main executable and make >> adjustments based on that. > > Yes, Linux also looks at the main executable's header, but not its > NT_GNU_PROPERTY_TYPE_0 if there is a loader. > >> >> ld.so can certainly provide whatever the kernel needs. We need to tweak >> the existing loader anyway. >> >> No valid statically-linked binaries exist today, so this is not a >> consideration at this point. > > So from kernel, we look at only PT_GNU_PROPERTY?
If you don't parse notes/segments in the executable for CET, then yes. We can put PT_GNU_PROPERTY into the loader.
Thanks, Florian
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