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* Change import go github.com/dexon-foundation/dexonWei-Ning Huang2019-04-091-1/+1
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* core/vm: clear linter warnings (#17057)Guillaume Ballet2018-06-261-0/+1
| | | | | | | | * core/vm: clear linter warnings * core/vm: review input * core/vm.go: revert lint in noop as per request
* params: core, core/vm, miner: 64bit gas instructionsJeffrey Wilcke2017-02-141-130/+23
| | | | | | | | | | | | | | | | | Reworked the EVM gas instructions to use 64bit integers rather than arbitrary size big ints. All gas operations, be it additions, multiplications or divisions, are checked and guarded against 64 bit integer overflows. In additon, most of the protocol paramaters in the params package have been converted to uint64 and are now constants rather than variables. * common/math: added overflow check ops * core: vmenv, env renamed to evm * eth, internal/ethapi, les: unmetered eth_call and cancel methods * core/vm: implemented big.Int pool for evm instructions * core/vm: unexported intPool methods & verification methods * core/vm: added memoryGasCost overflow check and test
* Revert "params: core, core/vm, miner: 64bit gas instructions (#3514)"Jeffrey Wilcke2017-02-131-23/+130
| | | | This reverts commit 8b57c494908637a5c0e74f8f7a13b3218e026757.
* params: core, core/vm, miner: 64bit gas instructions (#3514)Jeffrey Wilcke2017-02-021-130/+23
| | | | | | | | | | | | | | | | Reworked the EVM gas instructions to use 64bit integers rather than arbitrary size big ints. All gas operations, be it additions, multiplications or divisions, are checked and guarded against 64 bit integer overflows. In additon, most of the protocol paramaters in the params package have been converted to uint64 and are now constants rather than variables. * common/math: added overflow check ops * core: vmenv, env renamed to evm * eth, internal/ethapi, les: unmetered eth_call and cancel methods * core/vm: implemented big.Int pool for evm instructions * core/vm: unexported intPool methods & verification methods * core/vm: added memoryGasCost overflow check and test
* core, core/vm: added gas price variance tableJeffrey Wilcke2016-10-151-7/+27
| | | | | | | | | | | | | This implements 1b & 1c of EIP150 by adding a new GasTable which must be returned from the RuleSet config method. This table is used to determine the gas prices for the current epoch. Please note that when the CreateBySuicide gas price is set it is assumed that we're in the new epoch phase. In addition this PR will serve as temporary basis while refactorisation in being done in the EVM64 PR, which will substentially overhaul the gas price code.
* core/vm: Refactor tracing to make Tracer the main interfaceNick Johnson2016-08-221-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | This CL makes several refactors: - Define a Tracer interface, implementing the `CaptureState` method - Add the VM environment as the first argument of `Tracer.CaptureState` - Rename existing functionality `StructLogger` an make it an implementation of `Tracer` - Delete `StructLogCollector` and make `StructLogger` collect the logs directly - Change all callers to use the new `StructLogger` where necessary and extract logs from that. - Deletes the apparently obsolete and likely nonfunctional 'TraceCall' from the eth API. Callers that only wish accumulated logs can use the `StructLogger` implementation straightforwardly. Callers that wish to efficiently capture VM traces and operate on them without excessive copying can now implement the `Tracer` interface to receive VM state at each step and do with it as they wish. This CL also removes the accumulation of logs from the vm.Environment; this was necessary as part of the refactor, but also simplifies it by removing a responsibility that doesn't directly belong to the Environment.
* parmas, crypto, core, core/vm: homestead consensus protocol changesGustav Simonsson2016-02-181-0/+1
| | | | | | | | * 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
* cmd/evm, core/vm, test: refactored VM and coreJeffrey Wilcke2015-10-041-0/+2
| | | | | | | | | | | | | | | | | * 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`.
* core/vm, tests: implemented semi-jit vmJeffrey Wilcke2015-08-071-2/+2
| | | | * changed stack and removed stack ptr. Let go decide on slice reuse.
* all: fix license headers one more timeFelix Lange2015-07-241-1/+1
| | | | I forgot to update one instance of "go-ethereum" in commit 3f047be5a.
* all: update license headers to distiguish GPL/LGPLFelix Lange2015-07-231-4/+4
| | | | | All code outside of cmd/ is licensed as LGPL. The headers now reflect this by calling the whole work "the go-ethereum library".
* all: update license informationFelix Lange2015-07-071-0/+16
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* bool => intobscuren2015-04-031-63/+63
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* fixed stack levelobscuren2015-04-031-3/+4
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* Read most protocol params from common/params.jsonGustav Simonsson2015-04-021-46/+12
| | | | | | | | | * 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
* sha3 stack checkobscuren2015-04-011-1/+1
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* Check stack for BALANCE. Closes #622obscuren2015-04-011-1/+1
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* PUSH gas fixobscuren2015-03-271-4/+4
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* Removed defer/panic. #503obscuren2015-03-271-70/+94
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* moved state and vm to coreobscuren2015-03-231-0/+135