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Re: [PATCH] aarch64: Check PIC instead of SHARED in start.S
On 03/10/17 13:00, H.J. Lu wrote:
> On 10/3/17, Szabolcs Nagy <szabolcs.nagy@arm.com> wrote:
>> ok, this works (for binaries < 4G), but i assumed the symbols
>> can come from external module (in case of non-static linking)
>> and thus crt1.o will need GOT entries anyway, but now i see
>> that all of __libc_csu_init, __libc_csu_fini and main will
>> be in the same module as crt1.o
>>
>> i can update start.S, but i wonder if there might be code
>> where main is not in the executable for some reason, but
>> comes from a shared lib.
>>
>
> That won't happen with static PIE :-).
>
yes but now crt1.o is used for both static and non-static
linking and if i change start.S it will observably change
abi for the non-static case (i think it probably does not
matter in practice, but somebody might think otherwise).