Date: Thu, 8 Oct 2015 12:48:25 -0400 From: Rich Felker <dalias@...c.org> To: musl@...ts.openwall.com Subject: Re: musl bug or not, real or not? (Was: Update: pthread_getattr_np() vs explicit runtime) loader On Wed, Oct 07, 2015 at 10:43:39AM +0300, Timo Teras wrote: > On Wed, 7 Oct 2015 09:27:54 +0200 > u-uy74@...ey.se wrote: > > > > I think you really need to find a way to use what debugging tools > > > you have to figure out what's going on and where the actual source > > > of the crash is. > > > > Pretty remarkably, neither my usual gdb nor Debian's current gdb were > > able to make sence of the crashes. Probably the thread states became > > messed up too badly. > > > > Fortunately I do not think any longer that musl is the culprit, nor do > > I actually need gcj, otherwise have a workaround. Will not pursue this > > issue further. > > > > Thanks for your feedback, sorry for the noise. > > gcj uses boehm-gc. Alpine has patches for gcc boehm-gc. We are also > patching gcc's gcj. You can see our full patch set at: > http://git.alpinelinux.org/cgit/aports/tree/main/gcc > > Some of these may or may not fix the issue you have at had. Not sure > how your gcc/gcj is built. Thank you very much for finding the cause of this. Do you know if these patches have been submitted upstream to gcc and/or boehm? Obviously assuming by default that __environ is the start of .data and only doing a proper search on glibc is broken basically everywhere but glibc. The dl_iterate_phdr stuff should probably use a configure check; I think one already exists in gcc but the boehm-gc dir might need its own. Rich
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