Thanks, setting a breakpoint at exit allowed me to get a stacktrace which told me that the function called before exit is xerbla_ in the dynamic library liblapack.so. So the LD_PRELOAD trick may work. I can't seem to get it to work with sage yet though.
Is there a similar command to LD_PRELOAD available on OSX. The basic question is suppose you have a dynamic library that has some function f. Suppose you want to change the behaviour of f. Is there a way to write a replacement my_f and make sure that whenever f would be called, my_f is called instead. LD_PRELOAD on linux accomplishes this. Josh On Jun 5, 8:43 am, "Justin C. Walker" <[EMAIL PROTECTED]> wrote: > On Jun 5, 2007, at 01:18 , Joshua Kantor wrote: > > > > > Thanks, I had forgot about that sort of thing and it might work. I'm > > not sure because some of the libraries linked in are static. > > > My python module links against libsuperlu.a which is static which > > links against libblas. Because > > libsuperlu.a is static I'm not sure whether the static or dynamic > > version of libblas is linked against. > > > A followup question. I want to find the exact name of the function > > that calls exit, however I can't figure > > out how to make gdb tell me that because the program doesn't crash it > > exits normally. Anyone know a way > > to find the name of the last function called before a program exits. > > If it exits normally, it should pass through "exit()", I think. A > breakpoint there should tell you what the call stack looks like > (although it may not set up the stack correctly for full symbolic > debugging). > > I didn't fully grok your original question, but does "atexit()" help > there? > > Justin > > -- > Justin C. Walker, Curmudgeon-At-Large > Institute for the Enhancement of the Director's Income > -------- > Experience is what you get > when you don't get what you want. > -------- --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://sage.scipy.org/sage/ and http://modular.math.washington.edu/sage/ -~----------~----~----~----~------~----~------~--~---
