Hello,
dear list, allow me another stupid question: I want to go into MacRuby's guts,
and throw gdb at it.
Attempting to look at issue #753, I did the naive thing:
% gdb macruby
(gdb) break dispatcher.cpp:1343
The answer here was:
"No symbol table is loaded. Use the "file" command.
Make breakpoint pending on future shared library load? (y or [n]) y
Breakpoint 1 (dispatcher.cpp:1343) pending."
Question 1:
Do I need to build MacRuby differently to get a symbol file? Or is it just
hidden away somewhere?
When I continue:
(gdb) run test_webrick.rb
After a while, what I get is:
[2010-07-09 19:42:21] ERROR Errno::EINTR: Interrupted system call - select(2)
failed
/Library/Frameworks/MacRuby.framework/Versions/0.7/usr/lib/ruby/1.9.2/webrick/server.rb:83:in
`block'
Which is way off from the error I would expect.
If I do not try to set a breakpoint, I get the expected console output
("Assertion failed: ((b->flags & flags) == flags), function
rb_vm_prepare_block, file dispatcher.cpp, line 1343."), and a SIGABRT. The
backtrace looks, well, not really nice.
Question 2: Am I even approaching this right? Or do I need to take special
precautions?
Thanks a lot
Alex
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