search for: ulwps

I would like to know how to get access to errno when using pid provider to probe calls to libc functions like fopen(). The built-in errno appears to be only for system calls. What I''d like to be able to do is investigate where in an application I''m encountering EMFILE and what the stack looks like at the time. This message posted from opensolaris.org

...--------------------------------------------------------------------------- So we''re using pcb_gsdesc, but it doesn''t appear that this is exposed to userland via libproc (unless I''ve missed something.) I''ve coded something similar to mdb''s "::walk ulwps" that suits my purpose, but I''d rather be able to determine the ulwp_t for the current thread than walk that list. (I''m trying to match %pc against the thread-local scratch space, so I have a way of searching that list.) (I haven''t come up to speed on understanding...