Date: Thu, 14 Apr 2011 19:11:40 -0400 From: Rich Felker <dalias@...ifal.cx> To: musl@...ts.openwall.com Subject: Re: Simple testing task - string functions On Thu, Apr 14, 2011 at 07:59:33PM +0200, Luka Marčetić wrote: > Hello again. > Attached is the solution to the task. The program seems to preform > as expected, but may still need double-checking. > The tests therein fail where expected when linked with various old > versions of musl. Note that although the program is designed to > allow tests to fail gracefully as suggested, this does not happen > due to bugs in function implementations in said old versions that > the program depends on. Rich and Chris have confirmed a bug in 0.7.6 > that causes a segfault in the siglongjmp (longjmp to be exact). I'm > still waiting for confirmation of inability of version 0.7.5 to > dispose the same signal to a specified handler properly. Here's an idea for avoiding the sigsetjmp/siglongjmp bug: just use setjmp/longjmp, and use sigaction with SA_NODEFER to install the signal handler. Actually sigaction should always be used to install signal handlers, since signal is under-specified and you can't be sure how it will behave. Rich
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