Commit Graph

86 Commits

Author SHA1 Message Date
dm4
3ebcf92b42 cmd/evm: print vm output when debug flag is on (#16326) 2018-04-06 12:43:36 +02:00
Péter Szilágyi
b7e57ca1d0
cmd/evm, core/vm, internal/ethapi: don't disable call gas metering 2018-03-05 14:01:13 +02:00
Felix Lange
a5c0bbb4f4
all: update license information (#16089) 2018-02-14 13:49:11 +01:00
Péter Szilágyi
55599ee95d core, trie: intermediate mempool between trie and database (#15857)
This commit reduces database I/O by not writing every state trie to disk.
2018-02-05 17:40:32 +01:00
Péter Szilágyi
5258785c81
cmd, core, eth/tracers: support fancier js tracing (#15516)
* cmd, core, eth/tracers: support fancier js tracing

* eth, internal/web3ext: rework trace API, concurrency, chain tracing

* eth/tracers: add three more JavaScript tracers

* eth/tracers, vendor: swap ottovm to duktape for tracing

* core, eth, internal: finalize call tracer and needed extras

* eth, tests: prestate tracer, call test suite, rewinding

* vendor: fix windows builds for tracer js engine

* vendor: temporary duktape fix

* eth/tracers: fix up 4byte and evmdis tracer

* vendor: pull in latest duktape with my upstream fixes

* eth: fix some review comments

* eth: rename rewind to reexec to make it more obvious

* core/vm: terminate tracing using defers
2017-12-21 13:56:11 +02:00
Martin Holst Swende
0900aae412 cmd/evm: print stateroot in evm utility (#15341) 2017-10-20 13:22:06 +03:00
cdetrio
673007d7ae core/vm: standard vm traces (#15035) 2017-09-22 10:22:56 +02:00
Martin Holst Swende
8cab3ab435 cmd/evm: adds ability to run individual state test file (#14998)
* cmd/evm: adds ability to run individual state test file

* cmd/evm: Fix statetest runner to be more json friendly

* cmd/evm, tests: minor polishes, dump state on fail
2017-09-05 12:24:26 +03:00
Martin Holst Swende
286ec5df40 cmd/evm, core/vm, internal/ethapi: Show error when exiting (#14985)
* cmd/evm, core/vm, internal/ethapi: Add 'err' to tracer interface CaptureEnd

* cmd/evm: fix nullpointer when there is no error
2017-08-23 14:37:18 +03:00
Martin Holst Swende
3040243042 cmd/evm: add --receiver, support code from stdin (#14873) 2017-08-15 11:31:36 +02:00
Egon Elbre
85454e7678 cmd: fix megacheck warnings (#14912)
* cmd: fix megacheck warnings

* cmd: revert time.Until changes, keep readFloat
2017-08-07 14:34:21 +03:00
Felix Lange
9e5f03b6c4 core/state: access trie through Database interface, track errors (#14589)
With this commit, core/state's access to the underlying key/value database is
mediated through an interface. Database errors are tracked in StateDB and
returned by CommitTo or the new Error method.

Motivation for this change: We can remove the light client's duplicated copy of
core/state. The light client now supports node iteration, so tracing and storage
enumeration can work with the light client (not implemented in this commit).
2017-06-27 15:57:06 +02:00
Martin Holst Swende
9a44e1035e cmd/evm, core/vm: add --nomemory, --nostack to evm (#14617) 2017-06-21 14:52:31 +02:00
Martin Holst Swende
80f7c6c299 cmd/evm: add --prestate, --sender, --json flags for fuzzing (#14476) 2017-06-07 17:09:08 +02:00
Jeffrey Wilcke
3ee75bec9f cmd/evm: added mem/cpu profiling 2017-05-23 10:17:55 +02:00
Péter Szilágyi
09777952ee core, consensus: pluggable consensus engines (#3817)
This commit adds pluggable consensus engines to go-ethereum. In short, it
introduces a generic consensus interface, and refactors the entire codebase to
use this interface.
2017-04-05 00:16:29 +02:00
Péter Szilágyi
82e7c1d124 Merge pull request #3728 from obscuren/format-trace
core/evm, core/vm: improved evm trace output
2017-03-02 13:01:01 +02:00
Valentin Wüstholz
c52ab932e6 cmd/disasm, cmd/evm: integrate disasm tool into evm tool. (#3729) 2017-03-01 13:34:50 +01:00
Jeffrey Wilcke
f30733c806
cmd/evm: removed -sysstat and moved content to -debug flag
Added the ability to directly compile and run ethereum assembly using
the evm utility: `evm run <file>`. This is equivalant to `evm compile
<file> | evm run`.
2017-03-01 11:52:57 +01:00
Jeffrey Wilcke
bf4155846c
core/evm, core/vm: improved evm trace output
* Improved the standard evm tracer output and renamed it to WriteTrace
which now takes an io.Writer to write the logs to.
* Added WriteLogs which writes logs to the given writer in a readable
format.
* evm utility now also prints logs generated during the execution.
2017-03-01 11:20:25 +01:00
Jeffrey Wilcke
230cf2ec91 cmd/evm, core/asm: add EVM assembler (#3686)
The evm compile command implements a simple assembly language that compiles to
EVM bytecode.
2017-03-01 01:11:24 +01:00
Felix Lange
d0eba23af3 all: disable log message colors outside of geth
Also tweak behaviour so colors are only enabled when stderr is a terminal.
2017-02-27 15:33:12 +01:00
Felix Lange
5c8fe28b72 common: move big integer math to common/math (#3699)
* common: remove CurrencyToString

Move denomination values to params instead.

* common: delete dead code

* common: move big integer operations to common/math

This commit consolidates all big integer operations into common/math and
adds tests and documentation.

There should be no change in semantics for BigPow, BigMin, BigMax, S256,
U256, Exp and their behaviour is now locked in by tests.

The BigD, BytesToBig and Bytes2Big functions don't provide additional
value, all uses are replaced by new(big.Int).SetBytes().

BigToBytes is now called PaddedBigBytes, its minimum output size
parameter is now specified as the number of bytes instead of bits. The
single use of this function is in the EVM's MSTORE instruction.

Big and String2Big are replaced by ParseBig, which is slightly stricter.
It previously accepted leading zeros for hexadecimal inputs but treated
decimal inputs as octal if a leading zero digit was present.

ParseUint64 is used in places where String2Big was used to decode a
uint64.

The new functions MustParseBig and MustParseUint64 are now used in many
places where parsing errors were previously ignored.

* common: delete unused big integer variables

* accounts/abi: replace uses of BytesToBig with use of encoding/binary

* common: remove BytesToBig

* common: remove Bytes2Big

* common: remove BigTrue

* cmd/utils: add BigFlag and use it for error-checked integer flags

While here, remove environment variable processing for DirectoryFlag
because we don't use it.

* core: add missing error checks in genesis block parser

* common: remove String2Big

* cmd/evm: use utils.BigFlag

* common/math: check for 256 bit overflow in ParseBig

This is supposed to prevent silent overflow/truncation of values in the
genesis block JSON. Without this check, a genesis block that set a
balance larger than 256 bits would lead to weird behaviour in the VM.

* cmd/utils: fixup import
2017-02-26 22:21:51 +01:00
Péter Szilágyi
d4fd06c3dc
all: blidly swap out glog to our log15, logs need rework 2017-02-23 12:16:44 +02:00
Jeffrey Wilcke
024d41d0c2 core, core/state, core/vm: remove exported account getters (#3618)
Removed exported statedb object accessors, reducing the chance for nasty
bugs to creep in. It's also ugly and unnecessary to have these methods.
2017-02-22 23:29:59 +01:00
Jeffrey Wilcke
c12f4df910 params: core, core/vm, miner: 64bit gas instructions
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
2017-02-13 21:44:25 +01:00
Jeffrey Wilcke
57f4e90257 Revert "params: core, core/vm, miner: 64bit gas instructions (#3514)"
This reverts commit 8b57c49490.
2017-02-13 15:15:12 +01:00
Jeffrey Wilcke
8b57c49490 params: core, core/vm, miner: 64bit gas instructions (#3514)
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
2017-02-02 15:25:42 +01:00
Martin Holst Swende
935d891e9d cmd/evm: added debug flag (back) (#3554)
* evm: added debug flag (back)

* cmd/evm: gofmt
2017-01-22 22:14:09 +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
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
Felix Lange
87670a7ac1 all: remove weird files 2016-10-30 11:02:34 +01:00
Nick Johnson
00665a0b72 cmd/evm: Allow stdin and files as sources of bytecode (#3172)
* cmd/evm: Allow stdin and files as sources of bytecode

* cmd/evm: Print and exit instead of panicing

* cmd/evm: fix compile and vet errors
2016-10-29 12:07:38 +03:00
Jeffrey Wilcke
64af2aafda core, core/vm: added gas price variance table
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.
2016-10-14 18:09:17 +02:00
Felix Lange
1f1ea18b54 core/state: implement reverts by journaling all changes
This commit replaces the deep-copy based state revert mechanism with a
linear complexity journal. This commit also hides several internal
StateDB methods to limit the number of ways in which calling code can
use the journal incorrectly.

As usual consultation and bug fixes to the initial implementation were
provided by @karalabe, @obscuren and @Arachnid. Thank you!
2016-10-06 15:32:16 +02:00
Péter Szilágyi
cb84e3f029 cmd, core, internal, light, tests: avoid hashing the code in the VM 2016-10-01 16:01:58 +03:00
Felix Lange
6b727c0440 cmd/evm, cmd/geth, cmd/utils: move version handling to cmd/utils 2016-09-05 13:24:11 +02:00
Nick Johnson
781915f183 core/vm: Refactor tracing to make Tracer the main interface
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.
2016-08-22 09:26:15 +01:00
Péter Szilágyi
6362a9d610 Revert "test, cmd/evm, core, core/vm: illegal code hash implementation"
This reverts commit 7a5b571c67.
2016-06-29 11:44:51 +03:00
Jeffrey Wilcke
7a5b571c67 test, cmd/evm, core, core/vm: illegal code hash implementation
This implements a generic approach to enabling soft forks by allowing
anyone to put in hashes of contracts that should not be interacted from.
This will help "The DAO" in their endevour to stop any whithdrawals from
any DAO contract by convincing the mining community to accept their code
hash.
2016-06-22 11:38:25 +03:00
Jeffrey Wilcke
e5165aeb27 cmd/evm: added --create flag indicating the exec code is to be created
This fixes an issue if you wanted to test out code deployment rather
than running a piece of code with an argument. This solves it by adding
a --create flag that indicates the Create function should be used rather
than the Call function.

This also adds a statedb.commit call so that the proper state can be
dumped when requested using the --dump flag.
2016-06-14 17:11:33 +02:00
Péter Szilágyi
90e07b19ab cmd: fix CLI package deprecation warnings 2016-06-10 11:23:00 +03:00
Bas van Kervel
861add3d72 cmd/geth: codegansta/cli package renamed to urfave/cli 2016-06-09 15:37:13 +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
Jeffrey Wilcke
342ae7ce7d core, core/vm, tests: changed the initialisation behaviour of the EVM
The EVM was previously initialised and created for every CALL, CALLCODE,
DELEGATECALL and CREATE. This PR changes this behaviour so that the same
EVM can be used through the session and beyond as long as the
Environment sticks around.
2016-03-23 00:04:00 +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
Gustav Simonsson
1b1f293082 core/state, core, miner: handle missing root error from state.New 2015-10-16 02:22:06 +02:00
Gustav Simonsson
e1616f77c7 core, core/vm, cmd/evm: remove redundant balance check 2015-10-06 12:42:34 +02:00