Date: Wed, 17 Oct 2012 00:09:22 +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> [2012-10-16 23:47:52 +0200]: > > There's at least one thing (maybe more) missing for go support with > > musl : gcc 'split-stack' support (see http://blog.nella.org/?p=849 and > > http://gcc.gnu.org/wiki/SplitStacks). > > why does go need support from libc? it has its own runtime and libraries on raw syscalls > 4) Compile musl with '-fsplit-stack' and add no_split_stack attribute > to appropriate functions (at least all functions called before > pthread_self_init because %gs or %fs register is unusable before this > call). > what does a no_split_stack function do when it runs out of stack? most functions in musl may be run before pthread_self_init (it runs on demand when a pthread function is used) what's the use of split stack if some functions may not work with it?
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