https://llvm.org/bugs/show_bug.cgi?id=25086
Bug ID: 25086
Summary: lldb should use unix socket for communication with
server on linux
Product: lldb
Version: 3.7
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: All Bugs
Assignee: lldb-dev@lists.llvm.org
Reporter: v...@mixedrealities.no
CC: llvm-b...@lists.llvm.org
Classification: Unclassified
As documented on the webpage, lldb on linux uses lldb-server even for local
debugging. It connects to this stub via loopback device. I believe it should
connect over a UNIX socket instead. (On Windows, named pipes are the
corresponding alternative.)
Explanation: For debugging a network protocol I have introduced packet loss on
the loopback device with the following command:
tc qdisc add dev lo root netem loss random 15
This introduces 15% packet loss and causes lldb to work EXTREMELY slowly
because its communication with the server stub is severely disrupted. It takes
ages to start debugging even a simple "hello world" program.
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