This is big time overkill, but I wasn’t sure where the problem I was tracking down was:
“lldb all:linux all:gdb-remote all” Ted -- Qualcomm Innovation Center, Inc. The Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux Foundation Collaborative Project From: Demi Obenour [mailto:demioben...@gmail.com] Sent: Friday, July 21, 2017 8:54 PM To: Ted Woodward <ted.woodw...@codeaurora.org>; lldb-dev@lists.llvm.org Subject: Re: [lldb-dev] Trying to use socketpair for lldb-server fails Sadly, that gives me nothing in the log file. Also, ConnectionFileDescriptor::Connect already seems to handle this case. Running strace on all child processes gives a “Operation not permitted” error from setsid(). That seems like the culprit, which is strange. Would you mind providing the value you used for LLDB_SERVER_LOG_CHANNELS? Demi On Fri, Jul 21, 2017 at 2:55 PM Ted Woodward <ted.woodw...@codeaurora.org <mailto:ted.woodw...@codeaurora.org> > wrote: The first thing I'd do is use the lldb logging mechanism. lldb-server closes its own stdout and stderr, because nobody is interested in output from the server, just from the target. Except when you're debugging the server, so there is an easy way to turn on logging. Set the following environment variables: LLDB_DEBUGSERVER_LOG_FILE - this contains the path to the file the logs will be written to LLDB_SERVER_LOG_CHANNELS - this contains the channels and categories to turn logging on for. The format is "channel category:channel category...". If you want more than 1 category for a channel, I think "channel cat1 cat2..." works. This is not spelled out very clearly, unfortunately. Quickly glancing at the code, it looks like you need to implement a socketpair connection, and handling of the fd:// connection URL, starting in ConnectionFileDescriptor::Connect. The log for this would be "lldb connection". Ted -- Qualcomm Innovation Center, Inc. The Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux Foundation Collaborative Project > -----Original Message----- > From: lldb-dev [mailto:lldb-dev-boun...@lists.llvm.org > <mailto:lldb-dev-boun...@lists.llvm.org> ] On Behalf Of Demi > Obenour via lldb-dev > Sent: Wednesday, July 19, 2017 7:44 PM > To: lldb-dev@lists.llvm.org <mailto:lldb-dev@lists.llvm.org> > Subject: [lldb-dev] Trying to use socketpair for lldb-server fails > > To avoid a local privilage escalation, I am trying to patch LLDB not to use a TCP > socket for local communication. > > The attached patch failed. Would anyone be able to provide suggestions for > how to debug the problem? > > Sincerely, > > Demi
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