On Jan 16 16:44, Corinna Vinschen wrote: > On Jan 16 15:23, Marco Atzeri wrote: > > Attached patch that allows tracking of original caller, > > for the 4 memory allocation calls. > > Thanks for the patch, but it won't work nicely either this way. The > problem is that, in theory, the code has to differ between internal and > external callers. Internal callers (that is, Cygwin functions itself) > don't hop into the function via _sigfe/_sigbe. Thus the output for > internal callers of malloc/free is now wrong with your patch. > > The solution for this problem would be a test which checks if the return > address is the _sigbe function and if so, returns *(_my_tls.stackptr-1), > otherwise __builtin_return_address(0). However, the symbol _sigbe is > not exported since, so far, it was only used inside _sigfe. This needs > a bit of tweaking. I'll have a look.
I applied a patch to print the right caller address. I created a new macro caller_return_address() for reuse, should we have a desire to print the caller address in other parts of the code. I'm going to create a snapshot with this change. Please give it a try. Thanks, Corinna -- Corinna Vinschen Please, send mails regarding Cygwin to Cygwin Maintainer cygwin AT cygwin DOT com Red Hat
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