Add support for LoongArch64

[fangyaling]

No description provided.

[salesforce-cla]

Thanks for the contribution! Before we can merge this, we need @fangyaling to sign the Salesforce Inc. Contributor License Agreement.

[wadey]

Did you test this on hardware? Can you give us more details? I want to make sure this was actually tested in use, and not that it just compiles. Thanks!

[fangyaling]

@wadey The patch is tested on LS3A5000 and worked with all tests passed.
=== RUN TestNewAllowListFromConfig
--- PASS: TestNewAllowListFromConfig (0.00s)
=== RUN TestAllowList_Allow
--- PASS: TestAllowList_Allow (0.00s)
=== RUN TestLocalAllowList_AllowName
--- PASS: TestLocalAllowList_AllowName (0.00s)
=== RUN TestBits
--- PASS: TestBits (0.00s)
=== RUN TestBitsDupeCounter
--- PASS: TestBitsDupeCounter (0.00s)
=== RUN TestBitsOutOfWindowCounter
--- PASS: TestBitsOutOfWindowCounter (0.00s)
=== RUN TestBitsLostCounter
--- PASS: TestBitsLostCounter (0.00s)
=== RUN Test_NewConnectionManagerTest
--- PASS: Test_NewConnectionManagerTest (0.00s)
=== RUN Test_NewConnectionManagerTest2
--- PASS: Test_NewConnectionManagerTest2 (0.00s)
=== RUN Test_NewConnectionManagerTest_DisconnectInvalid
--- PASS: Test_NewConnectionManagerTest_DisconnectInvalid (0.01s)
=== RUN TestControl_GetHostInfoByVpnIp
--- PASS: TestControl_GetHostInfoByVpnIp (0.00s)
=== RUN TestParsequery
--- PASS: TestParsequery (0.00s)
=== RUN TestNewFirewall
--- PASS: TestNewFirewall (0.00s)
=== RUN TestFirewall_AddRule
--- PASS: TestFirewall_AddRule (0.00s)
=== RUN TestFirewall_Drop
--- PASS: TestFirewall_Drop (0.01s)
=== RUN TestFirewall_Drop2
--- PASS: TestFirewall_Drop2 (0.00s)
=== RUN TestFirewall_Drop3
--- PASS: TestFirewall_Drop3 (0.00s)
=== RUN TestFirewall_DropConntrackReload
--- PASS: TestFirewall_DropConntrackReload (0.00s)
=== RUN Test_parsePort
--- PASS: Test_parsePort (0.00s)
=== RUN TestNewFirewallFromConfig
--- PASS: TestNewFirewallFromConfig (0.00s)
=== RUN TestAddFirewallRulesFromConfig
--- PASS: TestAddFirewallRulesFromConfig (0.00s)
=== RUN TestTCPRTTTracking
--- PASS: TestTCPRTTTracking (0.00s)
=== RUN TestFirewall_convertRule
--- PASS: TestFirewall_convertRule (0.00s)
=== RUN Test_NewHandshakeManagerVpnIp
--- PASS: Test_NewHandshakeManagerVpnIp (0.00s)
=== RUN Test_NewHandshakeManagerTrigger
--- PASS: Test_NewHandshakeManagerTrigger (0.00s)
=== RUN TestOldIPv4Only
--- PASS: TestOldIPv4Only (0.00s)
=== RUN TestNewLhQuery
--- PASS: TestNewLhQuery (0.00s)
=== RUN Test_lhStaticMapping
--- PASS: Test_lhStaticMapping (0.00s)
=== RUN TestLighthouse_Memory
--- PASS: TestLighthouse_Memory (0.00s)
=== RUN TestLighthouse_reload
--- PASS: TestLighthouse_reload (0.00s)
=== RUN Test_ipMaskContains
--- PASS: Test_ipMaskContains (0.00s)
=== RUN Test_newPacket
--- PASS: Test_newPacket (0.00s)
=== RUN TestNewPunchyFromConfig
--- PASS: TestNewPunchyFromConfig (0.00s)
=== RUN TestPunchy_reload
--- PASS: TestPunchy_reload (0.00s)
=== RUN TestRemoteList_Rebuild
--- PASS: TestRemoteList_Rebuild (0.00s)
=== RUN TestNewSystemTimerWheel
--- PASS: TestNewSystemTimerWheel (0.00s)
=== RUN TestSystemTimerWheel_findWheel
--- PASS: TestSystemTimerWheel_findWheel (0.00s)
=== RUN TestSystemTimerWheel_Add
--- PASS: TestSystemTimerWheel_Add (0.00s)
=== RUN TestSystemTimerWheel_Purge
--- PASS: TestSystemTimerWheel_Purge (0.00s)
=== RUN TestNewTimerWheel
--- PASS: TestNewTimerWheel (0.00s)
=== RUN TestTimerWheel_findWheel
--- PASS: TestTimerWheel_findWheel (0.00s)
=== RUN TestTimerWheel_Add
--- PASS: TestTimerWheel_Add (0.00s)
=== RUN TestTimerWheel_Purge
--- PASS: TestTimerWheel_Purge (0.00s)
PASS
ok github.com/slackhq/nebula 0.050s
=== RUN TestMarshalingNebulaCertificate
--- PASS: TestMarshalingNebulaCertificate (0.00s)
=== RUN TestNebulaCertificate_Sign
--- PASS: TestNebulaCertificate_Sign (0.00s)
=== RUN TestNebulaCertificate_Expired
--- PASS: TestNebulaCertificate_Expired (0.00s)
=== RUN TestNebulaCertificate_MarshalJSON
--- PASS: TestNebulaCertificate_MarshalJSON (0.00s)
=== RUN TestNebulaCertificate_Verify
--- PASS: TestNebulaCertificate_Verify (0.00s)
=== RUN TestNebulaCertificate_Verify_IPs
--- PASS: TestNebulaCertificate_Verify_IPs (0.00s)
=== RUN TestNebulaCertificate_Verify_Subnets
--- PASS: TestNebulaCertificate_Verify_Subnets (0.00s)
=== RUN TestNebulaCertificate_VerifyPrivateKey
--- PASS: TestNebulaCertificate_VerifyPrivateKey (0.00s)
=== RUN TestNewCAPoolFromBytes
--- PASS: TestNewCAPoolFromBytes (0.00s)
=== RUN TestUnmrshalCertPEM
--- PASS: TestUnmrshalCertPEM (0.00s)
=== RUN TestUnmarshalEd25519PrivateKey
--- PASS: TestUnmarshalEd25519PrivateKey (0.00s)
=== RUN TestUnmarshalX25519PrivateKey
--- PASS: TestUnmarshalX25519PrivateKey (0.00s)
=== RUN TestUnmarshalEd25519PublicKey
--- PASS: TestUnmarshalEd25519PublicKey (0.00s)
=== RUN TestUnmarshalX25519PublicKey
--- PASS: TestUnmarshalX25519PublicKey (0.00s)
=== RUN TestMarshalingNebulaCertificateConsistency
--- PASS: TestMarshalingNebulaCertificateConsistency (0.00s)
=== RUN TestNebulaCertificate_Copy
--- PASS: TestNebulaCertificate_Copy (0.00s)
=== RUN TestUnmarshalNebulaCertificate
--- PASS: TestUnmarshalNebulaCertificate (0.00s)
PASS
ok github.com/slackhq/nebula/cert 0.036s
=== RUN TestCIDRTree_Contains
--- PASS: TestCIDRTree_Contains (0.00s)
=== RUN TestCIDRTree_MostSpecificContains
--- PASS: TestCIDRTree_MostSpecificContains (0.00s)
=== RUN TestCIDRTree_Match
--- PASS: TestCIDRTree_Match (0.00s)
=== RUN TestCIDR6Tree_MostSpecificContains
--- PASS: TestCIDR6Tree_MostSpecificContains (0.00s)
=== RUN TestCIDR6Tree_MostSpecificContainsIpV6
--- PASS: TestCIDR6Tree_MostSpecificContainsIpV6 (0.00s)
PASS
ok github.com/slackhq/nebula/cidr 0.009s
=== RUN Test_caSummary
--- PASS: Test_caSummary (0.00s)
=== RUN Test_caHelp
--- PASS: Test_caHelp (0.00s)
=== RUN Test_ca
--- PASS: Test_ca (0.01s)
=== RUN Test_keygenSummary
--- PASS: Test_keygenSummary (0.00s)
=== RUN Test_keygenHelp
--- PASS: Test_keygenHelp (0.00s)
=== RUN Test_keygen
--- PASS: Test_keygen (0.01s)
=== RUN Test_help
--- PASS: Test_help (0.00s)
=== RUN Test_handleError
--- PASS: Test_handleError (0.00s)
=== RUN Test_printSummary
--- PASS: Test_printSummary (0.00s)
=== RUN Test_printHelp
--- PASS: Test_printHelp (0.00s)
=== RUN Test_printCert
--- PASS: Test_printCert (0.00s)
=== RUN Test_signSummary
--- PASS: Test_signSummary (0.00s)
=== RUN Test_signHelp
--- PASS: Test_signHelp (0.00s)
=== RUN Test_signCert
--- PASS: Test_signCert (0.01s)
=== RUN Test_verifySummary
--- PASS: Test_verifySummary (0.00s)
=== RUN Test_verifyHelp
--- PASS: Test_verifyHelp (0.00s)
=== RUN Test_verify
--- PASS: Test_verify (0.00s)
PASS
ok github.com/slackhq/nebula/cmd/nebula-cert 0.044s
=== RUN TestConfig_Load
--- PASS: TestConfig_Load (0.00s)
=== RUN TestConfig_Get
--- PASS: TestConfig_Get (0.00s)
=== RUN TestConfig_GetStringSlice
--- PASS: TestConfig_GetStringSlice (0.00s)
=== RUN TestConfig_GetBool
--- PASS: TestConfig_GetBool (0.00s)
=== RUN TestConfig_HasChanged
--- PASS: TestConfig_HasChanged (0.00s)
=== RUN TestConfig_ReloadConfig
--- PASS: TestConfig_ReloadConfig (0.00s)
PASS
ok github.com/slackhq/nebula/config 0.018s
=== RUN TestEncode
--- PASS: TestEncode (0.00s)
=== RUN TestParse
--- PASS: TestParse (0.00s)
=== RUN TestTypeName
--- PASS: TestTypeName (0.00s)
=== RUN TestSubTypeName
--- PASS: TestSubTypeName (0.00s)
=== RUN TestTypeMap
--- PASS: TestTypeMap (0.00s)
=== RUN TestHeader_String
--- PASS: TestHeader_String (0.00s)
=== RUN TestHeader_MarshalJSON
--- PASS: TestHeader_MarshalJSON (0.00s)
PASS
ok github.com/slackhq/nebula/header 0.013s
=== RUN TestVpnIp_String
--- PASS: TestVpnIp_String (0.00s)
PASS
ok github.com/slackhq/nebula/iputil 0.009s
=== RUN Test_parseRoutes
--- PASS: Test_parseRoutes (0.00s)
=== RUN Test_parseUnsafeRoutes
--- PASS: Test_parseUnsafeRoutes (0.00s)
=== RUN Test_makeRouteTree
--- PASS: Test_makeRouteTree (0.00s)
=== RUN TestTunAdvMSS
=== RUN TestTunAdvMSS/default
=== RUN TestTunAdvMSS/default-min
=== RUN TestTunAdvMSS/default-low
=== RUN TestTunAdvMSS/route
=== RUN TestTunAdvMSS/route-min
=== RUN TestTunAdvMSS/route-high
--- PASS: TestTunAdvMSS (0.00s)
--- PASS: TestTunAdvMSS/default (0.00s)
--- PASS: TestTunAdvMSS/default-min (0.00s)
--- PASS: TestTunAdvMSS/default-low (0.00s)
--- PASS: TestTunAdvMSS/route (0.00s)
--- PASS: TestTunAdvMSS/route-min (0.00s)
--- PASS: TestTunAdvMSS/route-high (0.00s)
PASS
ok github.com/slackhq/nebula/overlay 0.012s
=== RUN TestContextualError_Log
--- PASS: TestContextualError_Log (0.00s)
PASS
ok github.com/slackhq/nebula/util 0.012s

LoongArch ref：
1）https://www.loongson.cn/EN/product/show?id=6
2）https://loongson.github.io/LoongArch-Documentation/LoongArch-Vol1-EN.html

[fangyaling]

@wadey Can you check the upper info enough or not? Thanks!