Date: Wed, 17 Oct 2012 12:37:33 +0200 From: Szabolcs Nagy <nsz@...t70.net> To: musl@...ts.openwall.com Subject: Re: TLS (thread-local storage) support * boris brezillon <b.brezillon.musl@...il.com> [2012-10-17 01:16:43 +0200]: > > most functions in musl may be run before pthread_self_init > > (it runs on demand when a pthread function is used) > This can be done during dynamic linking process (by checking the split > stack note). i meant that you would need to annotate almost all musl functions as no_split_stack because normally thread pointer is not initialized (but dalias commented that this might change) the dynamic loader can only do the initialization for dynamically linked executables so it's easier to just not compile musl with -fsplit-stack musl can easily give guarantees about its maximum stack usage assuming there is a bound to function call overhead and alignment overhead of auto variables etc (but dalias already gave better explanation)
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