Add new linux worker and dwarf5 based cross-project builder

[dyung]

Summary

This commit adds a slow linux worker that runs a DWARF5 compatible configuration so we can run a few additional tests in the cross-project-tests suite that our other worker cannot (it is running an older version of GDB).

The build job configuration is a clone of the existing cross-project-tests-sie-ubuntu builder, with a slight adjustment to the number of parallel test threads due to it being a much older and more resource constrained machine.

[gkistanova]

LGTM

[dyung]

Committed in https://reviews.llvm.org/rZORG568b360e92541c5b2bb61b1adc04083823fae99f

buildbot/osuosl/master/config/builders.py

'factory': UnifiedTreeBuilder.getCmakeWithNinjaBuildFactory(
                         "-DLLDB_ENABLE_PYTHON=TRUE",
                         "-DLLVM_CCACHE_BUILD=ON",
                         "-DLLVM_INCLUDE_EXAMPLES=OFF",
                         "-DLLVM_ENABLE_ASSERTIONS=ON",
                         "-DLLVM_LIT_ARGS=--verbose -j100",
                         "-DLLVM_TARGETS_TO_BUILD=X86",
                         "-DLLVM_USE_LINKER=gold"])},
 
+    {'name': "cross-project-tests-sie-ubuntu-dwarf5",
+    'tags'  : ["clang", "llvm", "lldb", "cross-project-tests"],
+    'workernames': ["sie-slow-linux-worker"],
+    'builddir': "cross-project-tests-sie-ubuntu-dwarf5",
+    'factory': UnifiedTreeBuilder.getCmakeWithNinjaBuildFactory(
+                    depends_on_projects=['llvm','clang','lldb','cross-project-tests'],
+                    checks = ['check-cross-project'],
+                    extra_configure_args=[
+                        "-DCMAKE_C_COMPILER=gcc",
+                        "-DCMAKE_CXX_COMPILER=g++",
+                        "-DCMAKE_BUILD_TYPE=Release",
+                        "-DCLANG_ENABLE_ARCMT=OFF",
+                        "-DLLDB_ENABLE_PYTHON=TRUE",
+                        "-DLLVM_CCACHE_BUILD=ON",
+                        "-DLLVM_INCLUDE_EXAMPLES=OFF",
+                        "-DLLVM_ENABLE_ASSERTIONS=ON",
+                        "-DLLVM_LIT_ARGS=--verbose -j24",
+                        "-DLLVM_TARGETS_TO_BUILD=X86",
+                        "-DLLVM_USE_LINKER=gold"])},
+
 # Polly builders.
 
     {'name' : "polly-arm-linux",
     'tags'  : ["polly"],
     'workernames' : ["hexagon-build-02", "hexagon-build-03"],
     'builddir': "polly-arm-linux",
     'factory' : PollyBuilder.getPollyBuildFactory(
                     clean=True,

buildbot/osuosl/master/config/workers.py

return [
                       notify_on_missing='[e-mail]'),
 
         # Ubuntu x86_64
         create_worker("thinlto-x86-64-bot1", properties={'jobs': 64}, max_builds=1),
         create_worker("thinlto-x86-64-bot2", properties={'jobs': 64}, max_builds=1),
 
         # Ubuntu 20.04 on AWS, x86_64 PS4 target
         create_worker("sie-linux-worker", properties={'jobs': 40}, max_builds=1),
+        # Ubuntu 22.04 on 2012 Mac Mini
+        create_worker("sie-slow-linux-worker", properties={'jobs': 8}, max_builds=1),
 
         # Windows Server 2019 on AWS, x86_64 PS4 target
         create_worker("sie-win-worker", properties={'jobs': 64}, max_builds=1),
 
         # XCore target, Ubuntu 20.04 x64 host
         create_worker("xcore-ubuntu20-x64", properties={'jobs': 4}, max_builds=1),
 
         # ARC Worker, CentOS 7.9 x86_64 Intel Xeon Platinum 8000 @ 3.6GHz, 32GB RAM