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Re: [PATCH] powerpc: Update AT_HWCAP2 bits
On 21/11/17 11:25, Florian Weimer wrote:
> On 11/21/2017 12:21 PM, Andreas Schwab wrote:
>> On Nov 21 2017, "Tulio Magno Quites Machado Filho" <tuliom@linux.vnet.ibm.com> wrote:
>>
>>> This patch is changing an internal structure.
>>> Could you elaborate why you think this is a problem?
>>
>> _rtld_global_ro is part of the ld.so interface.
>
> Are you suggesting that we cannot change GLIBC_PRIVATE ABIs on a release branch?
anything that changes internal abi between the
modules of the libc should not be observable
externally in principle, but it can break things
during libc update or static linked binaries that
expect a particular abi from dlopened libc modules.
i'd prefer if internal abi was not changed on
release branches (including not breaking malloc
interposition or sanitizers etc that hook into
internals as much as possible).