[zorg] Set up a buildslave to build the experimental RISCV target

[asb]

Summary

This adds a new buildslave for the staging buildmaster. This configuration will build the RISC-V backend, which isn't built by default due to its status as an experimental target.

This patch is based heavily on @dylanmckay's patches to add the AVR builder.

[gkistanova]

LGTM

[dylanmckay]

FYI @asb, I could never get email notifications working from the staging buildmaster.

I can't tell whether this patch is for the master buildslave or the staging one, so this might not be relevant.

[asb]

It looks like it's not working for me either. http://lab.llvm.org:8014/builders/llvm-riscv-linux/builds/115 was green, http://lab.llvm.org:8014/builders/llvm-riscv-linux/builds/116 was red, and I received no email. From what I can see, buildbot issues don't seem to be tracked on bugzilla currently?

buildbot/osuosl/master/config/builders.py

return [
                         enable_shared=True,
                         extra_cmake_args=[
                           "-G", "Unix Makefiles",
                           "-DCMAKE_BUILD_TYPE:STRING=Release",
                           # We need to compile the X86 backend due to a few generic CodeGen tests.
                           "-DLLVM_TARGETS_TO_BUILD:STRING=AVR;X86",
                           "-DLLVM_EXPERIMENTAL_TARGETS_TO_BUILD:STRING=AVR",
                           "-DBUILD_SHARED_LIBS=ON",
+                        ])},
+        {'name': "llvm-riscv-linux",
+         'slavenames':["riscv-build-01"],
+         'builddir':"llvm-riscv-linux",
+         'factory': LLVMBuilder.getLLVMCMakeBuildFactory(
+                        timeout=40, config_name='Release',
+                        enable_shared=True,
+                        extra_cmake_args=[
+                          "-G", "Ninja",
+                          "-DCMAKE_BUILD_TYPE:STRING=Release",
+                          # We need to compile the X86 backend due to a few generic CodeGen tests.
+                          "-DLLVM_TARGETS_TO_BUILD:STRING=RISCV;X86",
+                          "-DLLVM_EXPERIMENTAL_TARGETS_TO_BUILD:STRING=RISCV",
+                          "-DBUILD_SHARED_LIBS=ON",
+                          "-DCMAKE_C_COMPILER='clang'",
+                          "-DCMAKE_CXX_COMPILER='clang++'",
+                          "-DLLVM_ENABLE_LLD=True",
                         ])}
         ]
 
 # Clang fast builders.
 def _get_clang_fast_builders():
     return [
         {'name': "clang-x86_64-debian-fast",
          'slavenames':["gribozavr4"],

buildbot/osuosl/master/config/slaves.py

return [
 
         # Ubuntu x86-64, Intel(R) Xeon(R) CPU E5-2680 0 @ 2.70GHz
         create_slave("hexagon-build-03", properties={'jobs': 16, 'loadaverage':32},
             max_builds=1),
 
         # Ubuntu x86-64
         create_slave("avr-build-01", properties={'jobs': 10}, max_builds=1),
 
+        # Arch Linux x86-64
+        create_slave("riscv-build-01", properties={'jobs': 8}, max_builds=1),
+
         # Cavium Octeon II V0.8, MIPS64r2 big endian, Debian Jessie
         create_slave("mipsswbrd002", properties={'jobs' : 6}, max_builds=1),
 
         # Cavium Octeon II V0.2, MIPS64r2 big endian, Debian Jessie
         create_slave("mips-kl-m001", properties={'jobs' : 10}, max_builds=1),
 
         # Cavium Octeon II V0.2, MIPS64r2 big endian, Debian Jessie
         create_slave("mips-kl-m002", properties={'jobs' : 10}, max_builds=1),

buildbot/osuosl/master/config/status.py

return [
             sendToInterestedUsers= False,
             extraRecipients = ["[e-mail]"],
             subject="Build %(builder)s Failure",
             mode = "failing",
             builders = ["lldb-amd64-ninja-netbsd7",
                         "lldb-amd64-ninja-netbsd8"],
             addLogs=False,
             num_lines = 15),
+        InformativeMailNotifier(
+            fromaddr = "[e-mail]",
+            sendToInterestedUsers = False,
+            extraRecipients = ["[e-mail]"],
+            subject="Build %(builder)s Failure",
+            mode = "failing",
+            builders = ["llvm-riscv-linux"],
+            addLogs=False,
+            num_lines = 15),
         ]