[Lldb-commits] [lldb] r339178 - [lldb-mi] Re-implement target-select command

[Tim Northover via lldb-commits]

Hi,

I think this is causing the lldb-cmake test to hang on Green Dragon.
The build revision numbers don't exactly match up for reasons I don't
quite understand, but when I locally run check-lldb this is the test
that spins for ages, and reverting this change doesn't move the
timeout elsewhere.

I think the root of the issue is that macOS's debugserver has a very
different command-line interface from lldb-server, it bails and that
causes the pipe read to hang. But there seem to be other issues when I
try to run it manually too:

tim at timn ~/llvm/llvm-project/lldb $
/opt/local/Library/Frameworks/Python.framework/Versions/3.6/Resources/Python.app/Contents/MacOS/Python
/Users/tim/llvm/llvm-project/lldb/lit/tools/lldb-mi/target/inputs/target-select-so-path.py
/Users/tim/llvm/build.lldb/bin/debugserver
/Users/tim/llvm/build.lldb/bin/lldb-mi --synchronous
/Users/tim/llvm/build.lldb/tools/lldb/lit/tools/lldb-mi/target/Output/target-select-so-path.test.tmp
/Users/tim/llvm/llvm-project/lldb/lit/tools/lldb-mi/target/target-select-so-path.test
FileCheck: Unknown command line argument '--synchronous'.  Try:
'FileCheck -help'
FileCheck: Did you mean '-version'?
FileCheck: Not enough positional command line arguments specified!
Must specify at least 1 positional argument: See: FileCheck -help
debugserver: unrecognized option `--pipe'
debugserver-@(#)PROGRAM:LLDB  PROJECT:lldb-360.99.0
 for x86_64.
error: failed to launch process
/Users/tim/llvm/build.lldb/bin/debugserver: No such file or directory
(localhost:0)
Exiting.

(It doesn't exit, it hangs).

Could you take a look?

Cheers.

Tim.