This is the mail archive of the
mailing list for the glibc project.
Re: [PATCH] i386: Add _startup_sbrk and _startup_fatal [BZ #21913]
On Mon, Aug 7, 2017 at 6:11 AM, Zack Weinberg <email@example.com> wrote:
> On Mon, Aug 7, 2017 at 8:38 AM, H.J. Lu <firstname.lastname@example.org> wrote:
>> On Mon, Aug 7, 2017 at 4:47 AM, Zack Weinberg <email@example.com> wrote:
>> To initialize TLS, we need a single syscall, sbrk.
> I presume this is to allocate memory for the TLS block. But why can't
> the TLS block - remember, this is for the main thread, in a statically
> linked binary - be statically allocated data?
I can look into it.
But tunables_strdup also calls sbrk before TLS is initialized. We
still need it even if TLS initialization doesn't.