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Re: [PATCH 0/3] aarch64: Update ld.so for vector abi
On 02/08/18 14:17, Carlos O'Donell wrote:
On 08/02/2018 06:44 AM, Szabolcs Nagy wrote:
ok (ld audit is another reason to avoid plt for vector functions..)
If you avoid the PLT with no way to add back a call through the PLT
this completely breaks developer tooling that uses the PLT, like
LD_AUDIT, latrace, and custom tooling. Be aware that there are large
customers in various industry verticals that use LD_AUDIT extensively.
ld_audit cannot possibly work correctly (because variadic
functions with large arguments are broken, it can cause
runtime crashes) so it is a 'best effort hack' that sometimes
happens to work.
so i'm sad that users depend on it.. possibly because of
false advertisement somewhere that this is a reliable mechanism.