Re: linux-next: add utrace tree

2010-01-24 Thread tytso
On Sat, Jan 23, 2010 at 09:04:56PM -0800, Linus Torvalds wrote: The killer app for this will be the ability to delete thousands of lines of code from GDB, strace, and all the various other tools that have to painfully work around the major interface gotchas of ptrace(), while at the same

Re: linux-next: add utrace tree

2010-01-24 Thread tytso
On Sun, Jan 24, 2010 at 08:42:13PM -0500, Kyle Moffett wrote: Personally I don't give a flying about SystemTap; I'm interested in things like the ability to stack gdb with strace, the RFC gdb-stub posted a week ago, etc. None of those abilities would be out-of-tree modules at all, and

Re: linux-next: add utrace tree

2010-01-23 Thread tytso
On Sat, Jan 23, 2010 at 06:47:29AM -0500, Frank Ch. Eigler wrote: What utrace does is that it provides an opaque set of APIs for unspecified and out of tree _kernel_ modules (such as systemtap). It doesnt support any 'application' per se. It basically removes the kernel's freedom at