[Lldb-commits] [PATCH] D54476: [CMake] Streamline code signing for debugserver

Stefan Gränitz via Phabricator via lldb-commits lldb-commits at lists.llvm.org
Tue Nov 13 11:57:20 PST 2018

sgraenitz added inline comments.

Comment at: tools/debugserver/source/CMakeLists.txt:101
+option(LLDB_NO_DEBUGSERVER "Delete debugserver after building it, and don't try to codesign it" OFF)
+option(LLDB_USE_SYSTEM_DEBUGSERVER "Neither build nor codesign debugserver. Use the system's debugserver instead (Darwin only)." OFF)
JDevlieghere wrote:
> Should we emit and error if these variables are in an inconsistent state, e.g. when both are set? 
Yes, could do that.

Comment at: tools/debugserver/source/CMakeLists.txt:118
+      OUTPUT_VARIABLE xcode_dev_dir)
+    string(STRIP ${xcode_dev_dir} xcode_dev_dir)
JDevlieghere wrote:
> Why did you make this variable name lowercase? Does that have any semantic meaning?
LLVM tends to use lowercase names for local/non-cached variables, e.g. `update_src_props` in:

I didn't find any guidelines on conventions for CMake, but I thought it's a good idea. It's a little surprising to mix in such changes to patches that also have semantic changes. Maybe I should continue to use uppercase names for now and add a subsequent patch (with a proper title) that does the change for the whole file. What do you think?

Comment at: tools/debugserver/source/CMakeLists.txt:128-133
+    # TODO: Following the old behavior, DEBUGSERVER_PATH still points to the
+    # original system binary, even if we copy it over. Keep this?
+    set(DEBUGSERVER_PATH "${lldb_framework_dir}/LLDB.framework/Resources/debugserver" CACHE FILEPATH "" FORCE)
+    # If we haven't built a signed debugserver. If possible, copy the one from
+    # the system to make the built debugger functional on Darwin.
xiaobai wrote:
> I'm pretty sure that if you do not copy debugserver it will still find the one from your `${lldb_framework_dir}` when you run lldb anyway. Do you know why we copy it over?
Yes this is what I mean with "old behaviour" here. `DEBUGSERVER_PATH` still points to the original system binary and gets passed to tests, e.g. in `test/CMakeLists.txt` above.


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