forks/go-ethereum
1
0
Fork 1
mirror of https://github.com/ethereum/go-ethereum.git synced 2026-07-16 09:50:45 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

core: using math.MaxUint64 instead of 0xffffffffffffffff #29022 #29024 (#1243)

Browse source
This commit is contained in:
Daniel Liu 2025-07-26 17:43:36 +08:00 committed by GitHub
parent 5561c27308
commit 42d3549e2c
No known key found for this signature in database
GPG key ID: B5690EEEBB952194
1 changed files with 5 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
core/vm/instructions.go
View file

@ -17,6 +17,8 @@
package vm package vm
import ( import (
"math"
"github.com/XinFinOrg/XDPoSChain/common" "github.com/XinFinOrg/XDPoSChain/common"
"github.com/XinFinOrg/XDPoSChain/core/types" "github.com/XinFinOrg/XDPoSChain/core/types"
"github.com/XinFinOrg/XDPoSChain/crypto" "github.com/XinFinOrg/XDPoSChain/crypto"
@ -304,7 +306,7 @@ func opCallDataCopy(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext
) )
dataOffset64, overflow := dataOffset.Uint64WithOverflow() dataOffset64, overflow := dataOffset.Uint64WithOverflow()
if overflow { if overflow {
dataOffset64 = 0xffffffffffffffff dataOffset64 = math.MaxUint64
} }
// These values are checked for overflow during gas cost calculation // These values are checked for overflow during gas cost calculation
memOffset64 := memOffset.Uint64() memOffset64 := memOffset.Uint64()
@ -362,7 +364,7 @@ func opCodeCopy(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([
) )
uint64CodeOffset, overflow := codeOffset.Uint64WithOverflow() uint64CodeOffset, overflow := codeOffset.Uint64WithOverflow()
if overflow { if overflow {
uint64CodeOffset = 0xffffffffffffffff uint64CodeOffset = math.MaxUint64
} }
codeCopy := getData(scope.Contract.Code, uint64CodeOffset, length.Uint64()) codeCopy := getData(scope.Contract.Code, uint64CodeOffset, length.Uint64())
scope.Memory.Set(memOffset.Uint64(), length.Uint64(), codeCopy) scope.Memory.Set(memOffset.Uint64(), length.Uint64(), codeCopy)
@ -380,7 +382,7 @@ func opExtCodeCopy(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext)
) )
uint64CodeOffset, overflow := codeOffset.Uint64WithOverflow() uint64CodeOffset, overflow := codeOffset.Uint64WithOverflow()
if overflow { if overflow {
uint64CodeOffset = 0xffffffffffffffff uint64CodeOffset = math.MaxUint64
} }
addr := common.Address(a.Bytes20()) addr := common.Address(a.Bytes20())
codeCopy := getData(interpreter.evm.StateDB.GetCode(addr), uint64CodeOffset, length.Uint64()) codeCopy := getData(interpreter.evm.StateDB.GetCode(addr), uint64CodeOffset, length.Uint64())