SERVER-23556 Disable mmapv1 on non-x86 platforms

SConstruct

@@ -1457,12 +1457,10 @@ if env.TargetOSIs('posix'):
 
 mmapv1 = False
 if get_option('mmapv1') == 'auto':
-    # MMapV1 only supports little-endian architectures, and will fail to run on big-endian
-    # so disable MMapV1 on big-endian architectures
-    if endian == 'big':
-        mmapv1 = False
-    else:
-        mmapv1 = True
+    # The mmapv1 storage engine is only supported on x86
+    # targets. Unless explicitly requested, disable it on all other
+    # platforms.
+    mmapv1 = (env['TARGET_ARCH'] in ['i386', 'x86_64'])
 elif get_option('mmapv1') == 'on':
     mmapv1 = True
 

etc/evergreen.yml

@@ -4386,7 +4386,7 @@ buildvariants:
     tooltags: -gccgoflags "$(pkg-config --libs --cflags libssl libsasl2)" -tags 'sasl ssl'
     compile_flags: --ssl MONGO_DISTMOD=rhel71 --release -j$(grep -c processor /proc/cpuinfo) CCFLAGS="-mcpu=power8 -mtune=power8 -mcmodel=medium" CC=/opt/mongodbtoolchain/v2/bin/gcc CXX=/opt/mongodbtoolchain/v2/bin/g++
     num_jobs_available: 20
-    test_flags: --continueOnFailure
+    test_flags: --continueOnFailure --excludeWithAnyTags=requires_mmapv1
     has_packages: true
     packager_script: packager-enterprise.py
     packager_arch: ppc64le
@@ -4399,104 +4399,104 @@ buildvariants:
   - name: compile
     distros:
     - rhel71-power8-build
-  - name: aggregation
+  # - name: aggregation
   - name: aggregation_WT
   - name: aggregation_WT_ese
   - name: aggregation_auth
   - name: aggregation_read_concern_majority_passthrough_WT
-  - name: audit
+  # - name: audit
   - name: audit_WT
-  - name: auth
+  # - name: auth
   - name: auth_WT
-  - name: auth_audit
+  # - name: auth_audit
   - name: auth_audit_WT
-  - name: bulk_gle_passthrough
+  # - name: bulk_gle_passthrough
   - name: bulk_gle_passthrough_WT
-  - name: concurrency
+  # - name: concurrency
   - name: concurrency_WT
-  - name: concurrency_replication
+  # - name: concurrency_replication
   - name: concurrency_replication_WT
-  - name: concurrency_sharded
+  # - name: concurrency_sharded
   - name: concurrency_sharded_WT
-  - name: concurrency_simultaneous
+  # - name: concurrency_simultaneous
   - name: concurrency_simultaneous_WT
-  - name: dbtest
+  # - name: dbtest
   - name: dbtest_WT
-  - name: disk
-  - name: dur_jscore_passthrough
-  - name: durability
+  # - name: disk
+  # - name: dur_jscore_passthrough
+  # - name: durability
   - name: ese_WT
   - name: failpoints
   - name: failpoints_auth
-  - name: gle_auth
+  # - name: gle_auth
   - name: gle_auth_WT
-  - name: gle_auth_basics_passthrough
+  # - name: gle_auth_basics_passthrough
   - name: gle_auth_basics_passthrough_WT
-  - name: gle_auth_basics_passthrough_write_cmd
+  # - name: gle_auth_basics_passthrough_write_cmd
   - name: gle_auth_basics_passthrough_write_cmd_WT
-  - name: gle_auth_write_cmd
+  # - name: gle_auth_write_cmd
   - name: gle_auth_write_cmd_WT
   - name: httpinterface
   - name: integration_tests_replset
   - name: integration_tests_standalone
-  - name: jsCore
+  # - name: jsCore
   - name: jsCore_WT
   - name: jsCore_WT_ese
-  - name: jsCore_auth
-  - name: jsCore_compatibility
+  # - name: jsCore_auth
+  # - name: jsCore_compatibility
   - name: jsCore_compatibility_WT
-  - name: jsCore_minimum_batch_size_WT
-  - name: jsCore_op_query
+  # - name: jsCore_minimum_batch_size_WT
+  # - name: jsCore_op_query
   - name: jsCore_op_query_WT
-  - name: jsCore_small_oplog
+  # - name: jsCore_small_oplog
   - name: jsCore_small_oplog_WT
-  - name: jsCore_small_oplog_rs
+  # - name: jsCore_small_oplog_rs
   - name: jsCore_small_oplog_rs_WT
-  - name: mmap
+  # - name: mmap
   - name: mongosTest
-  - name: noPassthrough
-  - name: noPassthroughWithMongod
+  # - name: noPassthrough
+  # - name: noPassthroughWithMongod
   - name: noPassthroughWithMongod_WT
   - name: noPassthrough_WT
-  - name: parallel
+  # - name: parallel
   - name: parallel_WT
-  - name: parallel_compatibility
+  # - name: parallel_compatibility
   - name: parallel_compatibility_WT
   - name: read_concern_majority_passthrough_WT
-  - name: replicasets
+  # - name: replicasets
   - name: replicasets_WT
   - name: replicasets_WT_ese
   - name: replicasets_auth
   - name: replicasets_legacy
-  - name: replication
+  # - name: replication
   - name: replication_WT
   - name: replication_auth
   - name: sasl
-  - name: sharded_collections_jscore_passthrough
+  # - name: sharded_collections_jscore_passthrough
   - name: sharded_collections_jscore_passthrough_WT
-  - name: sharding
+  # - name: sharding
   - name: sharding_WT
   - name: sharding_WT_ese
   - name: sharding_auth
   - name: sharding_auth_audit_WT
   - name: sharding_csrs_continuous_config_stepdown_WT
-  - name: sharding_gle_auth_basics_passthrough
+  # - name: sharding_gle_auth_basics_passthrough
   - name: sharding_gle_auth_basics_passthrough_WT
-  - name: sharding_gle_auth_basics_passthrough_write_cmd
+  # - name: sharding_gle_auth_basics_passthrough_write_cmd
   - name: sharding_gle_auth_basics_passthrough_write_cmd_WT
-  - name: sharding_jscore_passthrough
+  # - name: sharding_jscore_passthrough
   - name: sharding_jscore_passthrough_WT
   - name: sharding_jscore_passthrough_wire_ops_WT
   - name: sharding_op_query_WT
-  - name: slow1
+  # - name: slow1
   - name: slow1_WT
-  - name: serial_run
+  # - name: serial_run
   - name: serial_run_WT
-  - name: snmp
+  # - name: snmp
   - name: snmp_WT
   - name: ssl
   - name: sslSpecial
-  - name: tool
+  # - name: tool
   - name: tool_WT
   - name: unittests
   - name: push