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Why Valve Is Working On LLDB Debugger For Linux

Valve

Published on 10 July 2013 05:28 PM EDT
Written by Michael Larabel in Valve
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Recently I wrote about RAD Game Tools looking for Linux developers with experience working on debuggers. In particular, RAD has been eyeing LLVM's LLDB debugger. Mike Sartain of Valve Software has now written about why LLDB currently comes up short on Linux.

Mike Sartain, one of the original Valve Linux developers who I know from my time at Valve, decided to write to clear up misconceptions about why Valve/RAD Game Tools is interested in working on LLDB.

Long story short, the Linux support has traditionally been quite poor, and lots of progress has been made in recent months, but much more work is needed. Sartain says that it will still be a lot of work to do before LLDB is capable of debugging Left 4 Dead or Team Fortress 2. LLDB right now on Linux can't even do a 32-bit debug of a simple printf statement.

With LLDB right now, 32-bit Linux debugging is problematic, DWARF4 symbols don't work, several test cases fail (~33 of 262), a tendency to hang, and there's no remote debugging support, among other shortcomings.

More details can be found in Mike's new blog post.

On a slightly unrelated note, good news is that I'm back to talking with Valve about addressing some Steam Linux issues to allow for automated benchmarking so hopefully that will be resolved soon and be fully supported by the Phoronix Test Suite.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
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