Date: Mon, 29 Jan 2018 09:38:00 -0600 From: William Pitcock <nenolod@...eferenced.org> To: musl@...ts.openwall.com Subject: Re: getcontext, setcontext, makecontext and swapcontext Hi, On Sun, Jan 28, 2018 at 6:24 AM, Tmp File <tmpfile@...l.com> wrote: > Hello all. > > I'm compiling many software in a musl box and (by far) the biggest wall I hit regards the functions getcontext, setcontext, makecontext and swapcontext. I understand they are deprecated, but they are used in many programs and it's usually really troublesome/tricky to modify the upstream source code to accomodate for them being unavailable on musl. > > David du Colombier from plan9port mentioned a simple coroutine library called libstak that should help. > I see 2 possible approaches: > (i) musl imports libstak > (ii} users somehow compile libstak and make it available for programs that need the *context functions > > In case you aren't interested in (i) could somebody help us get (ii) to work? > Then musl distros like Alpine could have libstak as some kind of "compatibility" layer. > Of course (i) might be a better solution, if you aren't so concerned about getcontext, setcontext, makecontext and swapcontext "deprecation status". Unfortunately, libtask does not actually contain/provide getcontext() or setcontext(). It only provides makecontext() and swapcontext(). Implementing a library that has these functions is on my todo list. William
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