add nim-metrics

.gitmodules

@@ -132,3 +132,8 @@
 	path = vendor/news
 	url = https://github.com/tormund/news
 	branch = master
+[submodule "vendor/nim-metrics"]
+	path = vendor/nim-metrics
+	url = https://github.com/status-im/nim-metrics.git
+	ignore = dirty
+	branch = master

nim.cfg

@@ -15,4 +15,5 @@
 
 --threads:on
 --excessiveStackTrace:on
+-d:metrics # enable metric collection
 

nimbus/nimbus.nim

@@ -127,7 +127,9 @@ proc start(): NimbusObject =
   # periodically log internal statistics
   let statsInterval = 10.seconds
   proc printStats(udata: pointer) {.closure, gcsafe.} =
-    info "stats", nimbusStats
+    {.gcsafe.}:
+      let peers = peerGauge.value.int64
+    info "stats", peers
     addTimer(Moment.fromNow(statsInterval), printStats)
   addTimer(Moment.fromNow(statsInterval), printStats)
 

nimbus/vm/interpreter/opcodes_impl.nim

@@ -596,14 +596,14 @@ proc setupCreate(computation: BaseComputation, memPos, len: int, value: Uint256,
     some(computation.getFork))
 
 template genCreate(callName: untyped, opCode: Op): untyped =
-  op callName, inline = false, value, startPosition, size:
+  op callName, inline = false, val, startPosition, size:
     ## 0xf0, Create a new account with associated code.
     let (memPos, len) = (startPosition.safeInt, size.safeInt)
-    if not computation.canTransfer(memPos, len, value, opCode):
+    if not computation.canTransfer(memPos, len, val, opCode):
       push: 0
       return
 
-    var childComp = setupCreate(computation, memPos, len, value, opCode)
+    var childComp = setupCreate(computation, memPos, len, val, opCode)
     if childComp.isNil: return
 
     continuation(childComp):

vendor/nim-eth

@@ -1 +1 @@
-Subproject commit 1797b7635124875fe0e212d7df5bd1836f22cbaa
+Subproject commit 93637fa0609129d8257adab022a3d7f1857a6516

vendor/nim-metrics

@@ -0,0 +1 @@
+Subproject commit bf5c678fa070c3582093b2b5785abee367c9934a