I would echo the comments you already have about the debugger flag. Another thing I have found with XS is that I have had trouble getting perl to run in the debugger (admittedly this is mostly when I am messing with interrupts and with modules linked to dynamic libraries). A trick that I have found usefull is to temporarily insert an infinite loop at the start of my C code:

int temp_val;
temp_val = 100;

/* An infinite loop that usually won't be optimised away */
while(temp_val > 0)
  {
    temp_val--;
    if(temp_val < 50)
        temp_val = 100;
  }

[download]

Then start up the perl script, it will go into the infinite loop. Use

ps aux

to get its process number. Start gdb with

gdb `which perl` <Process Number>

And get out of the infinite loop with

set temp_val=-1000

Now you have a gdb session with all the correct libraries loaded stopped at the start of your routine.

In reply to Re: How can I debug perl-xs code? by hawtin
in thread How can I debug perl-xs code? by pijush

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