Martin HS holiman

Current status and problems

Currently, tests are checked in to the tests repo, which contains several things:

Manually crafted tests, like bcForkBlockTestCopier.json in the src/BlockchaintestsFiller/ directory. The 'filler' directories contain various tests that are 'to be filled'.
Generalized state tests. These are also unfilled, and contain basically prestate, and the expect-section for various 'indexes'. Indexes are used to generalize the test. Example test 'Bazonk':

Run this test with gas 2000001, then 400000, on Constantinople and Homestead.

Writing an EVM-debugger for Geth

This document provides some ideas on how someone fairly easily could build the basic blocks for a debugger using geth.

Integration

The tracer interface defines four methods that a 'tracer' needs to implement:

Signatures included

Not listing calls made fewer than 5 times

1177020 0xa9059cbb-64 47.53% (47.53% aggregate)
107508 0xef343588-576 4.34% (51.88% aggregate)
66946 0x23b872dd-96 2.70% (54.58% aggregate)
46585 0x095ea7b3-64 1.88% (56.46% aggregate)
39975 0x70a08231-32 1.61% (58.07% aggregate)
34695 0x2295115b-256 1.40% (59.48% aggregate)

The values above, but translated into a table

Name                                         Gascost         Time (ns)       MGas/S    Gasprice for 10MGas/S  Gas/Ideal percent
-----------------------------------------  ---------  ----------------  -----------  -----------------------  -------------------
PrecompiledEcrecover/                           3000  171600              17.4825                   1716      174.8 %
PrecompiledSha256/128                            108     675             160                           6.75   1600.0 %
PrecompiledRipeMD/128                           1080    2336             462.329                      23.36   4623.3 %
PrecompiledIdentity/128                           27      18.8          1436.17                        0.188  14361.7 %
PrecompiledModExp/eip_example1                  2611  140894              18.5317                   1408.94   185.3 %

	trace
	```
	#cat /tmp/evmlab/artefacts/ropsten_mini-combined_trace.log
	[*] pc 0 op PUSH1( 96) gas 0x23ccaa depth 0 stack []
	[*] pc 2 op SLOAD( 84) gas 0x23cca7 depth 0 stack ['0x3']
	[*] pc 3 op CALLER( 51) gas 0x23cbdf depth 0 stack ['0x0']
	[*] pc 4 op ADDRESS( 48) gas 0x23cbdd depth 0 stack ['0x0', '0xa94f5374fce5edbc8e2a8697c15331677e6ebf0b']
	[*] pc 5 op EQ( 20) gas 0x23cbdb depth 0 stack ['0x0', '0xa94f5374fce5edbc8e2a8697c15331677e6ebf0b', '0xe12d6474ac4964b9f23812bf3375c1fe637ad3b6']
	[*] pc 6 op PUSH1( 96) gas 0x23cbd8 depth 0 stack ['0x0', '0x0']
	[*] pc 8 op JUMPI( 87) gas 0x23cbd5 depth 0 stack ['0x0', '0x0', '0x1d']

	#!/bin/bash
	# Linux version
	# Use this script to pipe in/out of the clipboard
	#
	# Usage: someapp \| clipboard # Pipe someapp's output into clipboard
	# clipboard \| someapp # Pipe clipboard's content into someapp
	#

	if command -v xclip 1>/dev/null; then
	if [[ -p /dev/stdin ]] ; then

	PREIMAGES map[]
	{
	"root": "d7f8974fb5ac78d9ac099b9ad5018bedc2ce0a72dad1827a1709da30580f0544",
	"accounts": {
	"000d836201318ec6899a67540690382780743280": {
	"balance": "200000000000000000000",
	"nonce": 0,
	"root": "56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
	"codeHash": "c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470",
	"code": "",