mirror of
https://github.com/vacp2p/linea-monorepo.git
synced 2026-01-09 04:08:01 -05:00
3bf08c9f18
* feat(exit): make sure that keccak uses 77 when overflowing and not a panic message * feat(exit): makes PadAssign return a 77 when vector builder overflows * feat(exit): adds a toggle mechanism for the exiting strategy * feat(unsatisfied): adds exiting when encountering an unsatisfied constraint * adds the toggle for the exit when finding unsatisfied constraints * feat(77): uses the 77 exit code to tell when we have too many merkle proofs * fix log for modexp
89 lines
3.6 KiB
Go
89 lines
3.6 KiB
Go
package arithmetization
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import (
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_ "embed"
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"encoding/gob"
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"errors"
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"fmt"
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"io"
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"github.com/consensys/go-corset/pkg/air"
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"github.com/consensys/go-corset/pkg/binfile"
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"github.com/consensys/go-corset/pkg/corset"
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"github.com/consensys/go-corset/pkg/mir"
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"github.com/consensys/go-corset/pkg/trace"
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"github.com/consensys/go-corset/pkg/trace/lt"
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"github.com/consensys/go-corset/pkg/util/collection/typed"
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)
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// Embed the whole constraint system at compile time, so no
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// more need to keep it in sync
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//
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//go:embed zkevm.bin
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var zkevmStr string
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// ReadZkevmBin parses and compiles a "zkevm.bin" file into an air.Schema,
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// whilst applying whatever optimisations are requested. Optimisations can
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// impact the size of the generated schema and, consequently, the size of the
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// expanded trace. For example, certain optimisations eliminate unnecessary
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// columns creates for multiplicative inverses. However, optimisations do not
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// always improve overall performance, as they can increase the complexity of
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// other constraints. The DEFAULT_OPTIMISATION_LEVEL is the recommended level
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// to use in general, whilst others are intended for testing purposes (i.e. to
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// try out new optimisations to see whether they help or hinder, etc).
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//
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// This additionally extracts the metadata map from the zkevm.bin file. This
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// contains information which can be used to cross-check the zkevm.bin file,
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// such as the git commit of the enclosing repository when it was built.
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func ReadZkevmBin(optConfig *mir.OptimisationConfig) (schema *air.Schema, metadata typed.Map, err error) {
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var (
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binf binfile.BinaryFile
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buf []byte = []byte(zkevmStr)
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)
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// TODO: why is only this one needed??
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gob.Register(binfile.Attribute(&corset.SourceMap{}))
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// Parse zkbinary file
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err = binf.UnmarshalBinary(buf)
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// Sanity check for errors
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if err != nil {
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return nil, metadata, fmt.Errorf("could not parse the read bytes of the 'zkevm.bin' file into an hir.Schema: %w", err)
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}
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// Extract schema
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hirSchema := &binf.Schema
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// Attempt to extract metadata from bin file, and sanity check constraints
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// commit information is available.
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if metadata, err = binf.Header.GetMetaData(); metadata.IsEmpty() {
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return nil, metadata, errors.New("missing metatdata from 'zkevm.bin' file")
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}
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// This performs the corset compilation
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return hirSchema.LowerToMir().LowerToAir(*optConfig), metadata, err
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}
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// ReadLtTraces reads a given LT trace file which contains (unexpanded) column
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// data, and additionally extracts the metadata map from the zkevm.bin file. The
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// metadata contains information which can be used to cross-check the zkevm.bin
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// file, such as the git commit of the enclosing repository when it was built.
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func ReadLtTraces(f io.ReadCloser, sch *air.Schema) (rawColumns []trace.RawColumn, metadata typed.Map, err error) {
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var (
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traceFile lt.TraceFile
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ok bool
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)
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defer f.Close()
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// Read the trace file, including any metadata embedded within.
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readBytes, err := io.ReadAll(f)
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if err != nil {
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return nil, metadata, fmt.Errorf("failed reading the file: %w", err)
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} else if err = traceFile.UnmarshalBinary(readBytes); err != nil {
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return nil, metadata, fmt.Errorf("failed parsing the bytes of the raw trace '.lt' file: %w", err)
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}
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// Attempt to extract metadata from trace file, and sanity check the
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// constraints commit information is present.
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if metadata, err = traceFile.Header.GetMetaData(); metadata.IsEmpty() {
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return nil, metadata, errors.New("missing metatdata from '.lt' file")
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} else if metadata, ok = metadata.Map("constraints"); !ok {
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return nil, metadata, errors.New("missing constraints metatdata from '.lt' file")
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}
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// Done
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return traceFile.Columns, metadata, nil
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}
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