Commit Graph

77 Commits

Author SHA1 Message Date
Jeffrey Wilcke
508fdc3496 core: removal of dead-code
Removal of dead code that appeard as if we had a consensus issue. This
however is not the case as the proper error catching happens in the vm
package instead.
2017-01-17 21:50:08 +01:00
Jeffrey Wilcke
bbc4ea4ae8 core/vm: improved EVM run loop & instruction calling (#3378)
The run loop, which previously contained custom opcode executes have been
removed and has been simplified to a few checks.

Each operation consists of 4 elements: execution function, gas cost function,
stack validation function and memory size function. The execution function
implements the operation's runtime behaviour, the gas cost function implements
the operation gas costs function and greatly depends on the memory and stack,
the stack validation function validates the stack and makes sure that enough
items can be popped off and pushed on and the memory size function calculates
the memory required for the operation and returns it.

This commit also allows the EVM to go unmetered. This is helpful for offline
operations such as contract calls.
2017-01-05 11:52:10 +01:00
Jeffrey Wilcke
3fc7c97827 core, core/vm: implemented a generic environment (#3348)
Environment is now a struct (not an interface). This
reduces a lot of tech-debt throughout the codebase where a virtual
machine environment had to be implemented in order to test or run it.

The new environment is suitable to be used en the json tests, core
consensus and light client.
2016-12-06 02:16:03 +01:00
Jeffrey Wilcke
4dca5d4db7 core/types, params: EIP#155 2016-11-13 14:55:30 +01:00
Jeffrey Wilcke
445feaeef5 core, core/state, trie: EIP158, reprice & skip empty account write
This commit implements EIP158 part 1, 2, 3 & 4

1. If an account is empty it's no longer written to the trie. An empty
  account is defined as (balance=0, nonce=0, storage=0, code=0).
2. Delete an empty account if it's touched
3. An empty account is redefined as either non-existent or empty.
4. Zero value calls and zero value suicides no longer consume the 25k
  reation costs.

params: moved core/config to params

Signed-off-by: Jeffrey Wilcke <jeffrey@ethereum.org>
2016-11-13 10:44:04 +01:00
zsfelfoldi
00787fe781 core: added CheckNonce() to Message interface 2016-07-11 12:35:23 +02:00
Jeffrey Wilcke
1f3596c25a core: transition db now also returns the required gas amount
Exposes some core methods to transition and compute new state
information and adds an additional return value to the transition db
method to fetch required gas for that particular message (excluding gas
refunds from any SSTORE[X] = 0 and SUICIDE.

Fixes #2395
2016-04-01 01:01:10 +02:00
Jeffrey Wilcke
f0cbebb19f core: added basic chain configuration
Added chain configuration options and write out during genesis database
insertion. If no "config" was found, nothing is written to the database.

Configurations are written on a per genesis base. This means
that any chain (which is identified by it's genesis hash) can have their
own chain settings.
2016-04-01 01:01:10 +02:00
Jeffrey Wilcke
14013372ae core: Added EVM configuration options
The EVM is now initialised with an additional configured object that
allows you to turn on debugging options.
2016-03-23 23:02:42 +01:00
Péter Szilágyi
f30b809f00 Merge pull request #2215 from bas-vk/estimategas
core: improved check for contract creation
2016-03-01 10:59:12 +02:00
Jeffrey Wilcke
b6d88a0e9f core, core/vm, crypto: fixes for homestead
* Removed some strange code that didn't apply state reverting properly
* Refactored code setting from vm & state transition to the executioner
* Updated tests
2016-02-18 10:11:48 +01:00
Gustav Simonsson
371871d685 parmas, crypto, core, core/vm: homestead consensus protocol changes
* change gas cost for contract creating txs
* invalidate signature with s value greater than secp256k1 N / 2
* OOG contract creation if not enough gas to store code
* new difficulty adjustment algorithm
* new DELEGATECALL op code
2016-02-18 10:08:11 +01:00
Bas van Kervel
0ff2adb21b core: improved check for contract creation 2016-02-16 10:52:46 +01:00
Felix Lange
de8d5aaa92 core, core/state: move gas tracking out of core/state
The amount of gas available for tx execution was tracked in the
StateObject representing the coinbase account. This commit makes the gas
counter a separate type in package core, which avoids unintended
consequences of intertwining the counter with state logic.
2015-10-17 10:24:34 +02:00
Jeffrey Wilcke
361082ec4b cmd/evm, core/vm, test: refactored VM and core
* Moved `vm.Transfer` to `core` package and changed execution to call
`env.Transfer` instead of `core.Transfer` directly.
* core/vm: byte code VM moved to jump table instead of switch
* Moved `vm.Transfer` to `core` package and changed execution to call
  `env.Transfer` instead of `core.Transfer` directly.
* Byte code VM now shares the same code as the JITVM
* Renamed Context to Contract
* Changed initialiser of state transition & unexported methods
* Removed the Execution object and refactor `Call`, `CallCode` &
  `Create` in to their own functions instead of being methods.
* Removed the hard dep on the state for the VM. The VM now
  depends on a Database interface returned by the environment. In the
  process the core now depends less on the statedb by usage of the env
* Moved `Log` from package `core/state` to package `core/vm`.
2015-10-04 01:13:54 +02:00
Felix Lange
00b45acb9e core: improve block gas tracking 2015-09-01 23:11:03 +02:00
Felix Lange
bfbcfbe4a9 all: fix license headers one more time
I forgot to update one instance of "go-ethereum" in commit 3f047be5a.
2015-07-23 18:35:11 +02:00
Felix Lange
3f047be5aa all: update license headers to distiguish GPL/LGPL
All code outside of cmd/ is licensed as LGPL. The headers
now reflect this by calling the whole work "the go-ethereum library".
2015-07-22 18:51:45 +02:00
Felix Lange
ea54283b30 all: update license information 2015-07-07 14:12:44 +02:00
Jeffrey Wilcke
e6bb9c1cad core, miner: removed vm errors from consensus err checking
Removed VM errors from the consensus errors. They now used for output
only.
2015-07-06 12:43:05 +02:00
Gustav Simonsson
0f04af5916 Fix core error forwarding, unify OOG VM err 2015-07-04 09:27:42 +02:00
Jeffrey Wilcke
529fb7a7d7 core, xeth: core.AddressFromMessage removed => crypto.CreateAddress 2015-07-02 11:19:10 +02:00
Felix Lange
fccc7d71eb core: remove superfluous big.Int allocations
With blocks now being immutable, use big.Int values from
accessor functions instead of copying their results.
2015-06-29 18:51:48 +02:00
Felix Lange
992dc74efd core: avoid duplicate calls to Transaction.Data 2015-06-29 18:51:48 +02:00
Felix Lange
0b22ad99c1 core: optimize IntrinsicGas 2015-06-29 18:51:48 +02:00
Felix Lange
1d42888d30 core/types: make blocks immutable 2015-06-29 18:51:47 +02:00
obscuren
07c3de3f75 core, miner, xeth: renamed gas methods
* BuyGas => SubGas
* RefundGas => AddGas
* SetGasPool => SetGasLimit
2015-06-21 17:09:19 +02:00
obscuren
5721fcf668 core/state, core/vm: cleanup refunds 2015-06-17 10:20:33 +02:00
obscuren
10af69b57c core, core/vm: moved logger and added gas cost to struct logging 2015-06-10 19:56:40 +02:00
obscuren
38c61f6f25 core, core/vm: added structure logging
This also reduces the time required spend in the VM
2015-06-10 12:23:49 +02:00
Gustav Simonsson
147a699c65 Add missing err checks on From() (skip RPC for now) 2015-06-01 22:12:03 +02:00
Gustav Simonsson
32276e8b01 Update StateTests and nil create return on failed code deposit 2015-05-15 18:49:31 +02:00
obscuren
6184781b49 Improved transaction pool
The transaction pool will now some easily be able to pre determine the
validity of a transaction by checking the following:

* Account existst
* gas limit higher than the instrinsic gas
* enough funds to pay upfront costs
* nonce check
2015-04-08 20:47:32 +02:00
obscuren
1889727144 Moved logging to logger.Core 2015-04-04 13:24:01 +02:00
Gustav Simonsson
c26c8d3a44 Read most protocol params from common/params.json
* Add params package with exported variables generated from
  github.com/ethereum/common/blob/master/params.json
* Use params package variables in applicable places
* Add check for minimum gas limit in validation of block's gas limit
* Remove common/params.json from go-ethereum to avoid
  outdated version of it
2015-04-02 06:22:32 +02:00
obscuren
0a554a1f27 Blocktest fixed, Execution fixed
* Added new CreateAccount method which properly overwrites previous
  accounts (excluding balance)
* Fixed block tests (100% success)
2015-04-01 10:53:32 +02:00
obscuren
ff9d66e096 Cleaned up changes 2015-03-24 15:23:16 +01:00
obscuren
23bccbbc58 Modified according to poc 9 changes
* Refund of value
2015-03-24 15:15:17 +01:00
obscuren
576df064e5 Updated for PV59
* Value XFER are refunded back to the sender if the execution fails
2015-03-24 11:49:30 +01:00
obscuren
0330077d76 moved state and vm to core 2015-03-23 16:59:09 +01:00
obscuren
0a1eeca41e conversions. -compilable- 2015-03-18 13:00:01 +01:00
obscuren
0fa7859b94 Fixed VM & Tests w/ conversion 2015-03-17 13:24:25 +01:00
Felix Lange
17c5ba2b6b core: actually convert transaction pool 2015-03-17 12:16:21 +01:00
Felix Lange
ee7202fa00 Merge remote-tracking branch 'ethereum/conversion' into conversion 2015-03-17 12:01:40 +01:00
Felix Lange
27f7aa0163 core: adapt Message for new Transaction.From signature 2015-03-17 12:00:29 +01:00
obscuren
515d9432fc converted vm 2015-03-17 11:19:23 +01:00
obscuren
94505146a2 updated vm env 2015-03-16 23:17:28 +01:00
obscuren
b523441361 Moved ethutil => common 2015-03-16 11:27:38 +01:00
obscuren
03403399fc Return proper error 2015-03-13 17:47:11 +01:00
obscuren
310ca62285 Removed some of that gas pre pay magic 2015-03-12 22:29:10 +01:00