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[chore]: Bump github.com/gin-contrib/gzip from 1.0.0 to 1.0.1 (#2899)

Browse Source 
Bumps [github.com/gin-contrib/gzip](https://github.com/gin-contrib/gzip) from 1.0.0 to 1.0.1.
- [Release notes](https://github.com/gin-contrib/gzip/releases)
- [Changelog](https://github.com/gin-contrib/gzip/blob/master/.goreleaser.yaml)
- [Commits](https://github.com/gin-contrib/gzip/compare/v1.0.0...v1.0.1)

---
updated-dependencies:
- dependency-name: github.com/gin-contrib/gzip
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
This commit is contained in:
dependabot[bot]
2024-05-06 08:50:47 +00:00
committed by GitHub
parent c98ec6f89d
commit a5f28fe0c9
372 changed files with 130601 additions and 52424 deletions
Download Patch File Download Diff File Expand all files Collapse all files

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# Binaries for programs and plugins
*.exe
*.exe~
*.dll
*.so
*.dylib
# Test binary, built with `go test -c`
*.test
# Output of the go coverage tool, specifically when used with LiteIDE
*.out
# Dependency directories (remove the comment below to include it)
# vendor/
# the result of the go build
output*
output/*
# Files generated by IDEs
.idea/
*.iml
# Vim swap files
*.swp
# Vscode files
.vscode

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# Options for analysis running.
run:
# include `vendor` `third_party` `testdata` `examples` `Godeps` `builtin`
skip-dirs-use-default: true
skip-dirs:
- kitex_gen
skip-files:
- ".*\\.mock\\.go$"
# output configuration options
output:
# Format: colored-line-number|line-number|json|tab|checkstyle|code-climate|junit-xml|github-actions
format: colored-line-number
# All available settings of specific linters.
# Refer to https://golangci-lint.run/usage/linters
linters-settings:
gofumpt:
# Choose whether to use the extra rules.
# Default: false
extra-rules: true
govet:
# Disable analyzers by name.
# Run `go tool vet help` to see all analyzers.
disable:
- stdmethods
linters:
enable:
- gofumpt
- goimports
- gofmt
disable:
- errcheck
- typecheck
- deadcode
- varcheck
- staticcheck
issues:
exclude-use-default: true

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header:
license:
spdx-id: Apache-2.0
copyright-owner: CloudWeGo Authors
paths:
- '**/*.go'
- '**/*.s'
paths-ignore:
- 'native_subr_amd64.go'
- 'native_text_amd64.go'
comment: on-failure

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# Contributor Covenant Code of Conduct
## Our Pledge
We as members, contributors, and leaders pledge to make participation in our
community a harassment-free experience for everyone, regardless of age, body
size, visible or invisible disability, ethnicity, sex characteristics, gender
identity and expression, level of experience, education, socio-economic status,
nationality, personal appearance, race, religion, or sexual identity
and orientation.
We pledge to act and interact in ways that contribute to an open, welcoming,
diverse, inclusive, and healthy community.
## Our Standards
Examples of behavior that contributes to a positive environment for our
community include:
* Demonstrating empathy and kindness toward other people
* Being respectful of differing opinions, viewpoints, and experiences
* Giving and gracefully accepting constructive feedback
* Accepting responsibility and apologizing to those affected by our mistakes,
and learning from the experience
* Focusing on what is best not just for us as individuals, but for the
overall community
Examples of unacceptable behavior include:
* The use of sexualized language or imagery, and sexual attention or
advances of any kind
* Trolling, insulting or derogatory comments, and personal or political attacks
* Public or private harassment
* Publishing others' private information, such as a physical or email
address, without their explicit permission
* Other conduct which could reasonably be considered inappropriate in a
professional setting
## Enforcement Responsibilities
Community leaders are responsible for clarifying and enforcing our standards of
acceptable behavior and will take appropriate and fair corrective action in
response to any behavior that they deem inappropriate, threatening, offensive,
or harmful.
Community leaders have the right and responsibility to remove, edit, or reject
comments, commits, code, wiki edits, issues, and other contributions that are
not aligned to this Code of Conduct, and will communicate reasons for moderation
decisions when appropriate.
## Scope
This Code of Conduct applies within all community spaces, and also applies when
an individual is officially representing the community in public spaces.
Examples of representing our community include using an official e-mail address,
posting via an official social media account, or acting as an appointed
representative at an online or offline event.
## Enforcement
Instances of abusive, harassing, or otherwise unacceptable behavior may be
reported to the community leaders responsible for enforcement at
conduct@cloudwego.io.
All complaints will be reviewed and investigated promptly and fairly.
All community leaders are obligated to respect the privacy and security of the
reporter of any incident.
## Enforcement Guidelines
Community leaders will follow these Community Impact Guidelines in determining
the consequences for any action they deem in violation of this Code of Conduct:
### 1. Correction
**Community Impact**: Use of inappropriate language or other behavior deemed
unprofessional or unwelcome in the community.
**Consequence**: A private, written warning from community leaders, providing
clarity around the nature of the violation and an explanation of why the
behavior was inappropriate. A public apology may be requested.
### 2. Warning
**Community Impact**: A violation through a single incident or series
of actions.
**Consequence**: A warning with consequences for continued behavior. No
interaction with the people involved, including unsolicited interaction with
those enforcing the Code of Conduct, for a specified period of time. This
includes avoiding interactions in community spaces as well as external channels
like social media. Violating these terms may lead to a temporary or
permanent ban.
### 3. Temporary Ban
**Community Impact**: A serious violation of community standards, including
sustained inappropriate behavior.
**Consequence**: A temporary ban from any sort of interaction or public
communication with the community for a specified period of time. No public or
private interaction with the people involved, including unsolicited interaction
with those enforcing the Code of Conduct, is allowed during this period.
Violating these terms may lead to a permanent ban.
### 4. Permanent Ban
**Community Impact**: Demonstrating a pattern of violation of community
standards, including sustained inappropriate behavior, harassment of an
individual, or aggression toward or disparagement of classes of individuals.
**Consequence**: A permanent ban from any sort of public interaction within
the community.
## Attribution
This Code of Conduct is adapted from the [Contributor Covenant][homepage],
version 2.0, available at
https://www.contributor-covenant.org/version/2/0/code_of_conduct.html.
Community Impact Guidelines were inspired by [Mozilla's code of conduct
enforcement ladder](https://github.com/mozilla/diversity).
[homepage]: https://www.contributor-covenant.org
For answers to common questions about this code of conduct, see the FAQ at
https://www.contributor-covenant.org/faq. Translations are available at
https://www.contributor-covenant.org/translations.

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# How to Contribute
## Your First Pull Request
We use github for our codebase. You can start by reading [How To Pull Request](https://docs.github.com/en/github/collaborating-with-issues-and-pull-requests/about-pull-requests).
## Branch Organization
We use [git-flow](https://nvie.com/posts/a-successful-git-branching-model/) as our branch organization, as known as [FDD](https://en.wikipedia.org/wiki/Feature-driven_development)
## Bugs
### 1. How to Find Known Issues
We are using [Github Issues](https://github.com/cloudwego/kitex/issues) for our public bugs. We keep a close eye on this and try to make it clear when we have an internal fix in progress. Before filing a new task, try to make sure your problem doesn’t already exist.
### 2. Reporting New Issues
Providing a reduced test code is a recommended way for reporting issues. Then can placed in:
- Just in issues
- [Golang Playground](https://play.golang.org/)
### 3. Security Bugs
Please do not report the safe disclosure of bugs to public issues. Contact us by [Support Email](mailto:conduct@cloudwego.io)
## How to Get in Touch
- [Email](mailto:conduct@cloudwego.io)
## Submit a Pull Request
Before you submit your Pull Request (PR) consider the following guidelines:
1. Search [GitHub](https://github.com/cloudwego/kitex/pulls) for an open or closed PR that relates to your submission. You don't want to duplicate existing efforts.
2. Be sure that an issue describes the problem you're fixing, or documents the design for the feature you'd like to add. Discussing the design upfront helps to ensure that we're ready to accept your work.
3. [Fork](https://docs.github.com/en/github/getting-started-with-github/fork-a-repo) the cloudwego/kitex repo.
4. In your forked repository, make your changes in a new git branch:
```
git checkout -b my-fix-branch develop
```
5. Create your patch, including appropriate test cases.
6. Follow our [Style Guides](#code-style-guides).
7. Commit your changes using a descriptive commit message that follows [AngularJS Git Commit Message Conventions](https://docs.google.com/document/d/1QrDFcIiPjSLDn3EL15IJygNPiHORgU1_OOAqWjiDU5Y/edit).
Adherence to these conventions is necessary because release notes are automatically generated from these messages.
8. Push your branch to GitHub:
```
git push origin my-fix-branch
```
9. In GitHub, send a pull request to `kitex:develop`
## Contribution Prerequisites
- Our development environment keeps up with [Go Official](https://golang.org/project/).
- You need fully checking with lint tools before submit your pull request. [gofmt](https://golang.org/pkg/cmd/gofmt/) and [golangci-lint](https://github.com/golangci/golangci-lint)
- You are familiar with [Github](https://github.com)
- Maybe you need familiar with [Actions](https://github.com/features/actions)(our default workflow tool).
## Code Style Guides
Also see [Pingcap General advice](https://pingcap.github.io/style-guide/general.html).
Good resources:
- [Effective Go](https://golang.org/doc/effective_go)
- [Go Code Review Comments](https://github.com/golang/go/wiki/CodeReviewComments)
- [Uber Go Style Guide](https://github.com/uber-go/guide/blob/master/style.md)

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Apache License
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Apache License
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TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
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"License" shall mean the terms and conditions for use, reproduction,
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"You" (or "Your") shall mean an individual or Legal Entity
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stating that You changed the files; and
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do not modify the License. You may add Your own attribution
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that such additional attribution notices cannot be construed
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You may add Your own copyright statement to Your modifications and
may provide additional or different license terms and conditions
for use, reproduction, or distribution of Your modifications, or
for any such Derivative Works as a whole, provided Your use,
reproduction, and distribution of the Work otherwise complies with
the conditions stated in this License.
5. Submission of Contributions. Unless You explicitly state otherwise,
any Contribution intentionally submitted for inclusion in the Work
by You to the Licensor shall be under the terms and conditions of
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Notwithstanding the above, nothing herein shall supersede or modify
the terms of any separate license agreement you may have executed
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6. Trademarks. This License does not grant permission to use the trade
names, trademarks, service marks, or product names of the Licensor,
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Contributor provides its Contributions) on an "AS IS" BASIS,
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work stoppage, computer failure or malfunction, or any and all
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on Your own behalf and on Your sole responsibility, not on behalf
of any other Contributor, and only if You agree to indemnify,
defend, and hold each Contributor harmless for any liability
incurred by, or claims asserted against, such Contributor by reason
of your accepting any such warranty or additional liability.
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.PHONY: all clean
CFLAGS := -mavx
CFLAGS += -mavx2
CFLAGS += -mno-bmi
CFLAGS += -mno-red-zone
CFLAGS += -fno-asynchronous-unwind-tables
CFLAGS += -fno-stack-protector
CFLAGS += -fno-exceptions
CFLAGS += -fno-builtin
CFLAGS += -fno-rtti
CFLAGS += -nostdlib
CFLAGS += -O3
NATIVE_ASM := $(wildcard native/*.S)
NATIVE_SRC := $(wildcard native/*.h)
NATIVE_SRC += $(wildcard native/*.c)
all: native_amd64.s
clean:
rm -vf native_text_amd64.go native_subr_amd64.go output/*.s
native_amd64.s: ${NATIVE_SRC} ${NATIVE_ASM} native_amd64.go
mkdir -p output
clang ${CFLAGS} -S -o output/native.s native/native.c
python3 tools/asm2asm/asm2asm.py -r native_amd64.go output/native.s ${NATIVE_ASM}
awk '{gsub(/Text__native_entry__/, "text__native_entry__")}1' native_text_amd64.go > native_text_amd64.go.tmp && mv native_text_amd64.go.tmp native_text_amd64.go
awk '{gsub(/Funcs/, "funcs")}1' native_subr_amd64.go > native_subr_amd64.go.tmp && mv native_subr_amd64.go.tmp native_subr_amd64.go

4
vendor/github.com/cloudwego/base64x/README.md generated vendored Normal file
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# base64x
High performance drop-in replacement of the `encoding/base64` library.

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vendor/github.com/cloudwego/base64x/_typos.toml generated vendored Normal file
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# Typo check: https://github.com/crate-ci/typos
[files]
extend-exclude = ["go.mod", "go.sum", "check_branch_name.sh"]

167
vendor/github.com/cloudwego/base64x/base64x.go generated vendored Normal file
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/*
* Copyright 2024 CloudWeGo Authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package base64x
import (
`encoding/base64`
)
// An Encoding is a radix 64 encoding/decoding scheme, defined by a
// 64-character alphabet. The most common encoding is the "base64"
// encoding defined in RFC 4648 and used in MIME (RFC 2045) and PEM
// (RFC 1421). RFC 4648 also defines an alternate encoding, which is
// the standard encoding with - and _ substituted for + and /.
type Encoding int
const (
_MODE_URL = 1 << 0
_MODE_RAW = 1 << 1
_MODE_AVX2 = 1 << 2
_MODE_JSON = 1 << 3
)
// StdEncoding is the standard base64 encoding, as defined in
// RFC 4648.
const StdEncoding Encoding = 0
// URLEncoding is the alternate base64 encoding defined in RFC 4648.
// It is typically used in URLs and file names.
const URLEncoding Encoding = _MODE_URL
// RawStdEncoding is the standard raw, unpadded base64 encoding,
// as defined in RFC 4648 section 3.2.
//
// This is the same as StdEncoding but omits padding characters.
const RawStdEncoding Encoding = _MODE_RAW
// RawURLEncoding is the unpadded alternate base64 encoding defined in RFC 4648.
// It is typically used in URLs and file names.
//
// This is the same as URLEncoding but omits padding characters.
const RawURLEncoding Encoding = _MODE_RAW | _MODE_URL
// JSONStdEncoding is the StdEncoding and encoded as JSON string as RFC 8259.
const JSONStdEncoding Encoding = _MODE_JSON;
var (
archFlags = 0
)
/** Encoder Functions **/
// Encode encodes src using the specified encoding, writing
// EncodedLen(len(src)) bytes to out.
//
// The encoding pads the output to a multiple of 4 bytes,
// so Encode is not appropriate for use on individual blocks
// of a large data stream.
//
// If out is not large enough to contain the encoded result,
// it will panic.
func (self Encoding) Encode(out []byte, src []byte) {
if len(src) != 0 {
if buf := out[:0:len(out)]; self.EncodedLen(len(src)) <= len(out) {
self.EncodeUnsafe(&buf, src)
} else {
panic("encoder output buffer is too small")
}
}
}
// EncodeUnsafe behaves like Encode, except it does NOT check if
// out is large enough to contain the encoded result.
//
// It will also update the length of out.
func (self Encoding) EncodeUnsafe(out *[]byte, src []byte) {
b64encode(out, &src, int(self) | archFlags)
}
// EncodeToString returns the base64 encoding of src.
func (self Encoding) EncodeToString(src []byte) string {
nbs := len(src)
ret := make([]byte, 0, self.EncodedLen(nbs))
/* encode in native code */
self.EncodeUnsafe(&ret, src)
return mem2str(ret)
}
// EncodedLen returns the length in bytes of the base64 encoding
// of an input buffer of length n.
func (self Encoding) EncodedLen(n int) int {
if (self & _MODE_RAW) == 0 {
return (n + 2) / 3 * 4
} else {
return (n * 8 + 5) / 6
}
}
/** Decoder Functions **/
// Decode decodes src using the encoding enc. It writes at most
// DecodedLen(len(src)) bytes to out and returns the number of bytes
// written. If src contains invalid base64 data, it will return the
// number of bytes successfully written and base64.CorruptInputError.
//
// New line characters (\r and \n) are ignored.
//
// If out is not large enough to contain the encoded result,
// it will panic.
func (self Encoding) Decode(out []byte, src []byte) (int, error) {
if len(src) == 0 {
return 0, nil
} else if buf := out[:0:len(out)]; self.DecodedLen(len(src)) <= len(out) {
return self.DecodeUnsafe(&buf, src)
} else {
panic("decoder output buffer is too small")
}
}
// DecodeUnsafe behaves like Decode, except it does NOT check if
// out is large enough to contain the decoded result.
//
// It will also update the length of out.
func (self Encoding) DecodeUnsafe(out *[]byte, src []byte) (int, error) {
if n := b64decode(out, mem2addr(src), len(src), int(self) | archFlags); n >= 0 {
return n, nil
} else {
return 0, base64.CorruptInputError(-n - 1)
}
}
// DecodeString returns the bytes represented by the base64 string s.
func (self Encoding) DecodeString(s string) ([]byte, error) {
src := str2mem(s)
ret := make([]byte, 0, self.DecodedLen(len(s)))
/* decode into the allocated buffer */
if _, err := self.DecodeUnsafe(&ret, src); err != nil {
return nil, err
} else {
return ret, nil
}
}
// DecodedLen returns the maximum length in bytes of the decoded data
// corresponding to n bytes of base64-encoded data.
func (self Encoding) DecodedLen(n int) int {
if (self & _MODE_RAW) == 0 {
return n / 4 * 3
} else {
return n * 6 / 8
}
}

10
vendor/github.com/cloudwego/base64x/check_branch_name.sh generated vendored Normal file
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#!/usr/bin/env bash
current=$(git status | head -n1 | sed 's/On branch //')
name=${1:-$current}
if [[ ! $name =~ ^(((opt(imize)?|feat(ure)?|(bug|hot)?fix|test|refact(or)?|ci)/.+)|(main|develop)|(release-v[0-9]+\.[0-9]+)|(release/v[0-9]+\.[0-9]+\.[0-9]+(-[a-z0-9.]+(\+[a-z0-9.]+)?)?)|revert-[a-z0-9]+)$ ]]; then
echo "branch name '$name' is invalid"
exit 1
else
echo "branch name '$name' is valid"
fi

33
vendor/github.com/cloudwego/base64x/cpuid.go generated vendored Normal file
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/*
* Copyright 2024 CloudWeGo Authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package base64x
import (
`fmt`
`os`
`github.com/klauspost/cpuid/v2`
)
func hasAVX2() bool {
switch v := os.Getenv("B64X_MODE"); v {
case "" : fallthrough
case "auto" : return cpuid.CPU.Has(cpuid.AVX2)
case "noavx2" : return false
default : panic(fmt.Sprintf("invalid mode: '%s', should be one of 'auto', 'noavx2'", v))
}
}

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/*
* Copyright 2024 CloudWeGo Authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package base64x
import (
`reflect`
`unsafe`
)
func mem2str(v []byte) (s string) {
(*reflect.StringHeader)(unsafe.Pointer(&s)).Len = (*reflect.SliceHeader)(unsafe.Pointer(&v)).Len
(*reflect.StringHeader)(unsafe.Pointer(&s)).Data = (*reflect.SliceHeader)(unsafe.Pointer(&v)).Data
return
}
func str2mem(s string) (v []byte) {
(*reflect.SliceHeader)(unsafe.Pointer(&v)).Cap = (*reflect.StringHeader)(unsafe.Pointer(&s)).Len
(*reflect.SliceHeader)(unsafe.Pointer(&v)).Len = (*reflect.StringHeader)(unsafe.Pointer(&s)).Len
(*reflect.SliceHeader)(unsafe.Pointer(&v)).Data = (*reflect.StringHeader)(unsafe.Pointer(&s)).Data
return
}
func mem2addr(v []byte) unsafe.Pointer {
return *(*unsafe.Pointer)(unsafe.Pointer(&v))
}
// NoEscape hides a pointer from escape analysis. NoEscape is
// the identity function but escape analysis doesn't think the
// output depends on the input. NoEscape is inlined and currently
// compiles down to zero instructions.
// USE CAREFULLY!
//go:nosplit
//goland:noinspection GoVetUnsafePointer
func noEscape(p unsafe.Pointer) unsafe.Pointer {
x := uintptr(p)
return unsafe.Pointer(x ^ 0)
}

58
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/*
* Copyright 2024 CloudWeGo Authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
//go:generate make
package base64x
import (
`unsafe`
`github.com/bytedance/sonic/loader`
)
//go:nosplit
func b64encode(out *[]byte, src *[]byte, mode int) {
__b64encode(noEscape(unsafe.Pointer(out)), noEscape(unsafe.Pointer(src)), mode)
}
//go:nosplit
func b64decode(out *[]byte, src unsafe.Pointer, len int, mode int) (ret int) {
return __b64decode(noEscape(unsafe.Pointer(out)), noEscape(unsafe.Pointer(src)), len, mode)
}
// asm2asm templates
var (
__b64encode func(out unsafe.Pointer, src unsafe.Pointer, mod int)
__b64decode func(out unsafe.Pointer, src unsafe.Pointer, len int, mod int) (ret int)
)
// directly jump PCs
var (
_subr__b64encode uintptr
_subr__b64decode uintptr
)
var stubs = []loader.GoC{
{"_b64encode", &_subr__b64encode, &__b64encode},
{"_b64decode", &_subr__b64decode, &__b64decode},
}
func init() {
if hasAVX2() {
archFlags = _MODE_AVX2
}
loader.WrapGoC(text__native_entry__, funcs, stubs, "base64x", "base64x/native.c")
}

63
vendor/github.com/cloudwego/base64x/native_subr_amd64.go generated vendored Normal file
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// +build !noasm !appengine
// Code generated by asm2asm, DO NOT EDIT.
package base64x
import (
`github.com/bytedance/sonic/loader`
)
const (
_entry__b64decode = 1328
_entry__b64encode = 256
)
const (
_stack__b64decode = 152
_stack__b64encode = 40
)
const (
_size__b64decode = 17616
_size__b64encode = 864
)
var (
_pcsp__b64decode = [][2]uint32{
{1, 0},
{4, 8},
{6, 16},
{8, 24},
{10, 32},
{12, 40},
{13, 48},
{17560, 152},
{17564, 48},
{17565, 40},
{17567, 32},
{17569, 24},
{17571, 16},
{17573, 8},
{17577, 0},
{17608, 152},
}
_pcsp__b64encode = [][2]uint32{
{1, 0},
{4, 8},
{6, 16},
{8, 24},
{10, 32},
{852, 40},
{853, 32},
{855, 24},
{857, 16},
{859, 8},
{864, 0},
}
)
var funcs = []loader.CFunc{
{"__native_entry__", 0, 67, 0, nil},
{"_b64decode", _entry__b64decode, _size__b64decode, _stack__b64decode, _pcsp__b64decode},
{"_b64encode", _entry__b64encode, _size__b64encode, _stack__b64encode, _pcsp__b64encode},
}

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vendor/github.com/cloudwego/iasm/LICENSE-APACHE generated vendored Normal file
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Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
and distribution as defined by Sections 1 through 9 of this document.
"Licensor" shall mean the copyright owner or entity authorized by
the copyright owner that is granting the License.
"Legal Entity" shall mean the union of the acting entity and all
other entities that control, are controlled by, or are under common
control with that entity. For the purposes of this definition,
"control" means (i) the power, direct or indirect, to cause the
direction or management of such entity, whether by contract or
otherwise, or (ii) ownership of fifty percent (50%) or more of the
outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity
exercising permissions granted by this License.
"Source" form shall mean the preferred form for making modifications,
including but not limited to software source code, documentation
source, and configuration files.
"Object" form shall mean any form resulting from mechanical
transformation or translation of a Source form, including but
not limited to compiled object code, generated documentation,
and conversions to other media types.
"Work" shall mean the work of authorship, whether in Source or
Object form, made available under the License, as indicated by a
copyright notice that is included in or attached to the work
(an example is provided in the Appendix below).
"Derivative Works" shall mean any work, whether in Source or Object
form, that is based on (or derived from) the Work and for which the
editorial revisions, annotations, elaborations, or other modifications
represent, as a whole, an original work of authorship. For the purposes
of this License, Derivative Works shall not include works that remain
separable from, or merely link (or bind by name) to the interfaces of,
the Work and Derivative Works thereof.
"Contribution" shall mean any work of authorship, including
the original version of the Work and any modifications or additions
to that Work or Derivative Works thereof, that is intentionally
submitted to Licensor for inclusion in the Work by the copyright owner
or by an individual or Legal Entity authorized to submit on behalf of
the copyright owner. For the purposes of this definition, "submitted"
means any form of electronic, verbal, or written communication sent
to the Licensor or its representatives, including but not limited to
communication on electronic mailing lists, source code control systems,
and issue tracking systems that are managed by, or on behalf of, the
Licensor for the purpose of discussing and improving the Work, but
excluding communication that is conspicuously marked or otherwise
designated in writing by the copyright owner as "Not a Contribution."
"Contributor" shall mean Licensor and any individual or Legal Entity
on behalf of whom a Contribution has been received by Licensor and
subsequently incorporated within the Work.
2. Grant of Copyright License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
copyright license to reproduce, prepare Derivative Works of,
publicly display, publicly perform, sublicense, and distribute the
Work and such Derivative Works in Source or Object form.
3. Grant of Patent License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
(except as stated in this section) patent license to make, have made,
use, offer to sell, sell, import, and otherwise transfer the Work,
where such license applies only to those patent claims licensable
by such Contributor that are necessarily infringed by their
Contribution(s) alone or by combination of their Contribution(s)
with the Work to which such Contribution(s) was submitted. If You
institute patent litigation against any entity (including a
cross-claim or counterclaim in a lawsuit) alleging that the Work
or a Contribution incorporated within the Work constitutes direct
or contributory patent infringement, then any patent licenses
granted to You under this License for that Work shall terminate
as of the date such litigation is filed.
4. Redistribution. You may reproduce and distribute copies of the
Work or Derivative Works thereof in any medium, with or without
modifications, and in Source or Object form, provided that You
meet the following conditions:
(a) You must give any other recipients of the Work or
Derivative Works a copy of this License; and
(b) You must cause any modified files to carry prominent notices
stating that You changed the files; and
(c) You must retain, in the Source form of any Derivative Works
that You distribute, all copyright, patent, trademark, and
attribution notices from the Source form of the Work,
excluding those notices that do not pertain to any part of
the Derivative Works; and
(d) If the Work includes a "NOTICE" text file as part of its
distribution, then any Derivative Works that You distribute must
include a readable copy of the attribution notices contained
within such NOTICE file, excluding those notices that do not
pertain to any part of the Derivative Works, in at least one
of the following places: within a NOTICE text file distributed
as part of the Derivative Works; within the Source form or
documentation, if provided along with the Derivative Works; or,
within a display generated by the Derivative Works, if and
wherever such third-party notices normally appear. The contents
of the NOTICE file are for informational purposes only and
do not modify the License. You may add Your own attribution
notices within Derivative Works that You distribute, alongside
or as an addendum to the NOTICE text from the Work, provided
that such additional attribution notices cannot be construed
as modifying the License.
You may add Your own copyright statement to Your modifications and
may provide additional or different license terms and conditions
for use, reproduction, or distribution of Your modifications, or
for any such Derivative Works as a whole, provided Your use,
reproduction, and distribution of the Work otherwise complies with
the conditions stated in this License.
5. Submission of Contributions. Unless You explicitly state otherwise,
any Contribution intentionally submitted for inclusion in the Work
by You to the Licensor shall be under the terms and conditions of
this License, without any additional terms or conditions.
Notwithstanding the above, nothing herein shall supersede or modify
the terms of any separate license agreement you may have executed
with Licensor regarding such Contributions.
6. Trademarks. This License does not grant permission to use the trade
names, trademarks, service marks, or product names of the Licensor,
except as required for reasonable and customary use in describing the
origin of the Work and reproducing the content of the NOTICE file.
7. Disclaimer of Warranty. Unless required by applicable law or
agreed to in writing, Licensor provides the Work (and each
Contributor provides its Contributions) on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
implied, including, without limitation, any warranties or conditions
of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
PARTICULAR PURPOSE. You are solely responsible for determining the
appropriateness of using or redistributing the Work and assume any
risks associated with Your exercise of permissions under this License.
8. Limitation of Liability. In no event and under no legal theory,
whether in tort (including negligence), contract, or otherwise,
unless required by applicable law (such as deliberate and grossly
negligent acts) or agreed to in writing, shall any Contributor be
liable to You for damages, including any direct, indirect, special,
incidental, or consequential damages of any character arising as a
result of this License or out of the use or inability to use the
Work (including but not limited to damages for loss of goodwill,
work stoppage, computer failure or malfunction, or any and all
other commercial damages or losses), even if such Contributor
has been advised of the possibility of such damages.
9. Accepting Warranty or Additional Liability. While redistributing
the Work or Derivative Works thereof, You may choose to offer,
and charge a fee for, acceptance of support, warranty, indemnity,
or other liability obligations and/or rights consistent with this
License. However, in accepting such obligations, You may act only
on Your own behalf and on Your sole responsibility, not on behalf
of any other Contributor, and only if You agree to indemnify,
defend, and hold each Contributor harmless for any liability
incurred by, or claims asserted against, such Contributor by reason
of your accepting any such warranty or additional liability.
END OF TERMS AND CONDITIONS

261
vendor/github.com/cloudwego/iasm/expr/ast.go generated vendored Normal file
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//
// Copyright 2024 CloudWeGo Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
package expr
import (
`fmt`
)
// Type is tyep expression type.
type Type int
const (
// CONST indicates that the expression is a constant.
CONST Type = iota
// TERM indicates that the expression is a Term reference.
TERM
// EXPR indicates that the expression is a unary or binary expression.
EXPR
)
var typeNames = map[Type]string {
EXPR : "Expr",
TERM : "Term",
CONST : "Const",
}
// String returns the string representation of a Type.
func (self Type) String() string {
if v, ok := typeNames[self]; ok {
return v
} else {
return fmt.Sprintf("expr.Type(%d)", self)
}
}
// Operator represents an operation to perform when Type is EXPR.
type Operator uint8
const (
// ADD performs "Add Expr.Left and Expr.Right".
ADD Operator = iota
// SUB performs "Subtract Expr.Left by Expr.Right".
SUB
// MUL performs "Multiply Expr.Left by Expr.Right".
MUL
// DIV performs "Divide Expr.Left by Expr.Right".
DIV
// MOD performs "Modulo Expr.Left by Expr.Right".
MOD
// AND performs "Bitwise AND Expr.Left and Expr.Right".
AND
// OR performs "Bitwise OR Expr.Left and Expr.Right".
OR
// XOR performs "Bitwise XOR Expr.Left and Expr.Right".
XOR
// SHL performs "Bitwise Shift Expr.Left to the Left by Expr.Right Bits".
SHL
// SHR performs "Bitwise Shift Expr.Left to the Right by Expr.Right Bits".
SHR
// POW performs "Raise Expr.Left to the power of Expr.Right"
POW
// NOT performs "Bitwise Invert Expr.Left".
NOT
// NEG performs "Negate Expr.Left".
NEG
)
var operatorNames = map[Operator]string {
ADD : "Add",
SUB : "Subtract",
MUL : "Multiply",
DIV : "Divide",
MOD : "Modulo",
AND : "And",
OR : "Or",
XOR : "ExclusiveOr",
SHL : "ShiftLeft",
SHR : "ShiftRight",
POW : "Power",
NOT : "Invert",
NEG : "Negate",
}
// String returns the string representation of a Type.
func (self Operator) String() string {
if v, ok := operatorNames[self]; ok {
return v
} else {
return fmt.Sprintf("expr.Operator(%d)", self)
}
}
// Expr represents an expression node.
type Expr struct {
Type Type
Term Term
Op Operator
Left *Expr
Right *Expr
Const int64
}
// Ref creates an expression from a Term.
func Ref(t Term) (p *Expr) {
p = newExpression()
p.Term = t
p.Type = TERM
return
}
// Int creates an expression from an integer.
func Int(v int64) (p *Expr) {
p = newExpression()
p.Type = CONST
p.Const = v
return
}
func (self *Expr) clear() {
if self.Term != nil { self.Term.Free() }
if self.Left != nil { self.Left.Free() }
if self.Right != nil { self.Right.Free() }
}
// Free returns the Expr into pool.
// Any operation performed after Free is undefined behavior.
func (self *Expr) Free() {
self.clear()
freeExpression(self)
}
// Evaluate evaluates the expression into an integer.
// It also implements the Term interface.
func (self *Expr) Evaluate() (int64, error) {
switch self.Type {
case EXPR : return self.eval()
case TERM : return self.Term.Evaluate()
case CONST : return self.Const, nil
default : panic("invalid expression type: " + self.Type.String())
}
}
/** Expression Combinator **/
func combine(a *Expr, op Operator, b *Expr) (r *Expr) {
r = newExpression()
r.Op = op
r.Type = EXPR
r.Left = a
r.Right = b
return
}
func (self *Expr) Add(v *Expr) *Expr { return combine(self, ADD, v) }
func (self *Expr) Sub(v *Expr) *Expr { return combine(self, SUB, v) }
func (self *Expr) Mul(v *Expr) *Expr { return combine(self, MUL, v) }
func (self *Expr) Div(v *Expr) *Expr { return combine(self, DIV, v) }
func (self *Expr) Mod(v *Expr) *Expr { return combine(self, MOD, v) }
func (self *Expr) And(v *Expr) *Expr { return combine(self, AND, v) }
func (self *Expr) Or (v *Expr) *Expr { return combine(self, OR , v) }
func (self *Expr) Xor(v *Expr) *Expr { return combine(self, XOR, v) }
func (self *Expr) Shl(v *Expr) *Expr { return combine(self, SHL, v) }
func (self *Expr) Shr(v *Expr) *Expr { return combine(self, SHR, v) }
func (self *Expr) Pow(v *Expr) *Expr { return combine(self, POW, v) }
func (self *Expr) Not() *Expr { return combine(self, NOT, nil) }
func (self *Expr) Neg() *Expr { return combine(self, NEG, nil) }
/** Expression Evaluator **/
var binaryEvaluators = [256]func(int64, int64) (int64, error) {
ADD: func(a, b int64) (int64, error) { return a + b, nil },
SUB: func(a, b int64) (int64, error) { return a - b, nil },
MUL: func(a, b int64) (int64, error) { return a * b, nil },
DIV: idiv,
MOD: imod,
AND: func(a, b int64) (int64, error) { return a & b, nil },
OR: func(a, b int64) (int64, error) { return a | b, nil },
XOR: func(a, b int64) (int64, error) { return a ^ b, nil },
SHL: func(a, b int64) (int64, error) { return a << b, nil },
SHR: func(a, b int64) (int64, error) { return a >> b, nil },
POW: ipow,
}
func (self *Expr) eval() (int64, error) {
var lhs int64
var rhs int64
var err error
var vfn func(int64, int64) (int64, error)
/* evaluate LHS */
if lhs, err = self.Left.Evaluate(); err != nil {
return 0, err
}
/* check for unary operators */
switch self.Op {
case NOT: return self.unaryNot(lhs)
case NEG: return self.unaryNeg(lhs)
}
/* check for operators */
if vfn = binaryEvaluators[self.Op]; vfn == nil {
panic("invalid operator: " + self.Op.String())
}
/* must be a binary expression */
if self.Right == nil {
panic("operator " + self.Op.String() + " is a binary operator")
}
/* evaluate RHS, and call the operator */
if rhs, err = self.Right.Evaluate(); err != nil {
return 0, err
} else {
return vfn(lhs, rhs)
}
}
func (self *Expr) unaryNot(v int64) (int64, error) {
if self.Right == nil {
return ^v, nil
} else {
panic("operator Invert is an unary operator")
}
}
func (self *Expr) unaryNeg(v int64) (int64, error) {
if self.Right == nil {
return -v, nil
} else {
panic("operator Negate is an unary operator")
}
}

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vendor/github.com/cloudwego/iasm/expr/errors.go generated vendored Normal file
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//
// Copyright 2024 CloudWeGo Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
package expr
import (
`fmt`
)
// SyntaxError represents a syntax error in the expression.
type SyntaxError struct {
Pos int
Reason string
}
func newSyntaxError(pos int, reason string) *SyntaxError {
return &SyntaxError {
Pos : pos,
Reason : reason,
}
}
func (self *SyntaxError) Error() string {
return fmt.Sprintf("Syntax error at position %d: %s", self.Pos, self.Reason)
}
// RuntimeError is an error which would occure at run time.
type RuntimeError struct {
Reason string
}
func newRuntimeError(reason string) *RuntimeError {
return &RuntimeError {
Reason: reason,
}
}
func (self *RuntimeError) Error() string {
return "Runtime error: " + self.Reason
}

67
vendor/github.com/cloudwego/iasm/expr/ops.go generated vendored Normal file
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//
// Copyright 2024 CloudWeGo Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
package expr
import (
`fmt`
)
func idiv(v int64, d int64) (int64, error) {
if d != 0 {
return v / d, nil
} else {
return 0, newRuntimeError("division by zero")
}
}
func imod(v int64, d int64) (int64, error) {
if d != 0 {
return v % d, nil
} else {
return 0, newRuntimeError("division by zero")
}
}
func ipow(v int64, e int64) (int64, error) {
mul := v
ret := int64(1)
/* value must be 0 or positive */
if v < 0 {
return 0, newRuntimeError(fmt.Sprintf("negative base value: %d", v))
}
/* exponent must be non-negative */
if e < 0 {
return 0, newRuntimeError(fmt.Sprintf("negative exponent: %d", e))
}
/* fast power first round */
if (e & 1) != 0 {
ret *= mul
}
/* fast power remaining rounds */
for e >>= 1; e != 0; e >>= 1 {
if mul *= mul; (e & 1) != 0 {
ret *= mul
}
}
/* all done */
return ret, nil
}

329
vendor/github.com/cloudwego/iasm/expr/parser.go generated vendored Normal file
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//
// Copyright 2024 CloudWeGo Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
package expr
import (
`strconv`
`unicode`
`unsafe`
)
type _TokenKind uint8
const (
_T_end _TokenKind = iota + 1
_T_int
_T_punc
_T_name
)
const (
_OP2 = 0x80
_POW = _OP2 | '*'
_SHL = _OP2 | '<'
_SHR = _OP2 | '>'
)
type _Slice struct {
p unsafe.Pointer
n int
c int
}
type _Token struct {
pos int
ptr *rune
u64 uint64
tag _TokenKind
}
func (self _Token) str() (v string) {
return string(self.rbuf())
}
func (self _Token) rbuf() (v []rune) {
(*_Slice)(unsafe.Pointer(&v)).c = int(self.u64)
(*_Slice)(unsafe.Pointer(&v)).n = int(self.u64)
(*_Slice)(unsafe.Pointer(&v)).p = unsafe.Pointer(self.ptr)
return
}
func tokenEnd(p int) _Token {
return _Token {
pos: p,
tag: _T_end,
}
}
func tokenInt(p int, v uint64) _Token {
return _Token {
pos: p,
u64: v,
tag: _T_int,
}
}
func tokenPunc(p int, v rune) _Token {
return _Token {
pos: p,
tag: _T_punc,
u64: uint64(v),
}
}
func tokenName(p int, v []rune) _Token {
return _Token {
pos: p,
ptr: &v[0],
tag: _T_name,
u64: uint64(len(v)),
}
}
// Repository represents a repository of Term's.
type Repository interface {
Get(name string) (Term, error)
}
// Parser parses an expression string to it's AST representation.
type Parser struct {
pos int
src []rune
}
var binaryOps = [...]func(*Expr, *Expr) *Expr {
'+' : (*Expr).Add,
'-' : (*Expr).Sub,
'*' : (*Expr).Mul,
'/' : (*Expr).Div,
'%' : (*Expr).Mod,
'&' : (*Expr).And,
'^' : (*Expr).Xor,
'|' : (*Expr).Or,
_SHL : (*Expr).Shl,
_SHR : (*Expr).Shr,
_POW : (*Expr).Pow,
}
var precedence = [...]map[int]bool {
{_SHL: true, _SHR: true},
{'|' : true},
{'^' : true},
{'&' : true},
{'+' : true, '-': true},
{'*' : true, '/': true, '%': true},
{_POW: true},
}
func (self *Parser) ch() rune {
return self.src[self.pos]
}
func (self *Parser) eof() bool {
return self.pos >= len(self.src)
}
func (self *Parser) rch() (v rune) {
v, self.pos = self.src[self.pos], self.pos + 1
return
}
func (self *Parser) hex(ss []rune) bool {
if len(ss) == 1 && ss[0] == '0' {
return unicode.ToLower(self.ch()) == 'x'
} else if len(ss) <= 1 || unicode.ToLower(ss[1]) != 'x' {
return unicode.IsDigit(self.ch())
} else {
return ishexdigit(self.ch())
}
}
func (self *Parser) int(p int, ss []rune) (_Token, error) {
var err error
var val uint64
/* find all the digits */
for !self.eof() && self.hex(ss) {
ss = append(ss, self.rch())
}
/* parse the value */
if val, err = strconv.ParseUint(string(ss), 0, 64); err != nil {
return _Token{}, err
} else {
return tokenInt(p, val), nil
}
}
func (self *Parser) name(p int, ss []rune) _Token {
for !self.eof() && isident(self.ch()) { ss = append(ss, self.rch()) }
return tokenName(p, ss)
}
func (self *Parser) read(p int, ch rune) (_Token, error) {
if isdigit(ch) {
return self.int(p, []rune { ch })
} else if isident0(ch) {
return self.name(p, []rune { ch }), nil
} else if isop2ch(ch) && !self.eof() && self.ch() == ch {
return tokenPunc(p, _OP2 | self.rch()), nil
} else if isop1ch(ch) {
return tokenPunc(p, ch), nil
} else {
return _Token{}, newSyntaxError(self.pos, "invalid character " + strconv.QuoteRuneToASCII(ch))
}
}
func (self *Parser) next() (_Token, error) {
for {
var p int
var c rune
/* check for EOF */
if self.eof() {
return tokenEnd(self.pos), nil
}
/* read the next char */
p = self.pos
c = self.rch()
/* parse the token if not a space */
if !unicode.IsSpace(c) {
return self.read(p, c)
}
}
}
func (self *Parser) grab(tk _Token, repo Repository) (*Expr, error) {
if repo == nil {
return nil, newSyntaxError(tk.pos, "unresolved symbol: " + tk.str())
} else if term, err := repo.Get(tk.str()); err != nil {
return nil, err
} else {
return Ref(term), nil
}
}
func (self *Parser) nest(nest int, repo Repository) (*Expr, error) {
var err error
var ret *Expr
var ntk _Token
/* evaluate the nested expression */
if ret, err = self.expr(0, nest + 1, repo); err != nil {
return nil, err
}
/* must follows with a ')' */
if ntk, err = self.next(); err != nil {
return nil, err
} else if ntk.tag != _T_punc || ntk.u64 != ')' {
return nil, newSyntaxError(ntk.pos, "')' expected")
} else {
return ret, nil
}
}
func (self *Parser) unit(nest int, repo Repository) (*Expr, error) {
if tk, err := self.next(); err != nil {
return nil, err
} else if tk.tag == _T_int {
return Int(int64(tk.u64)), nil
} else if tk.tag == _T_name {
return self.grab(tk, repo)
} else if tk.tag == _T_punc && tk.u64 == '(' {
return self.nest(nest, repo)
} else if tk.tag == _T_punc && tk.u64 == '+' {
return self.unit(nest, repo)
} else if tk.tag == _T_punc && tk.u64 == '-' {
return neg2(self.unit(nest, repo))
} else if tk.tag == _T_punc && tk.u64 == '~' {
return not2(self.unit(nest, repo))
} else {
return nil, newSyntaxError(tk.pos, "integer, unary operator or nested expression expected")
}
}
func (self *Parser) term(prec int, nest int, repo Repository) (*Expr, error) {
var err error
var val *Expr
/* parse the LHS operand */
if val, err = self.expr(prec + 1, nest, repo); err != nil {
return nil, err
}
/* parse all the operators of the same precedence */
for {
var op int
var rv *Expr
var tk _Token
/* peek the next token */
pp := self.pos
tk, err = self.next()
/* check for errors */
if err != nil {
return nil, err
}
/* encountered EOF */
if tk.tag == _T_end {
return val, nil
}
/* must be an operator */
if tk.tag != _T_punc {
return nil, newSyntaxError(tk.pos, "operators expected")
}
/* check for the operator precedence */
if op = int(tk.u64); !precedence[prec][op] {
self.pos = pp
return val, nil
}
/* evaluate the RHS operand, and combine the value */
if rv, err = self.expr(prec + 1, nest, repo); err != nil {
return nil, err
} else {
val = binaryOps[op](val, rv)
}
}
}
func (self *Parser) expr(prec int, nest int, repo Repository) (*Expr, error) {
if prec >= len(precedence) {
return self.unit(nest, repo)
} else {
return self.term(prec, nest, repo)
}
}
// Parse parses the expression, and returns it's AST tree.
func (self *Parser) Parse(repo Repository) (*Expr, error) {
return self.expr(0, 0, repo)
}
// SetSource resets the expression parser and sets the expression source.
func (self *Parser) SetSource(src string) *Parser {
self.pos = 0
self.src = []rune(src)
return self
}

42
vendor/github.com/cloudwego/iasm/expr/pools.go generated vendored Normal file
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//
// Copyright 2024 CloudWeGo Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
package expr
import (
`sync`
)
var (
expressionPool sync.Pool
)
func newExpression() *Expr {
if v := expressionPool.Get(); v == nil {
return new(Expr)
} else {
return resetExpression(v.(*Expr))
}
}
func freeExpression(p *Expr) {
expressionPool.Put(p)
}
func resetExpression(p *Expr) *Expr {
*p = Expr{}
return p
}

23
vendor/github.com/cloudwego/iasm/expr/term.go generated vendored Normal file
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//
// Copyright 2024 CloudWeGo Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
package expr
// Term represents a value that can Evaluate() into an integer.
type Term interface {
Free()
Evaluate() (int64, error)
}

77
vendor/github.com/cloudwego/iasm/expr/utils.go generated vendored Normal file
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//
// Copyright 2024 CloudWeGo Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
package expr
var op1ch = [...]bool {
'+': true,
'-': true,
'*': true,
'/': true,
'%': true,
'&': true,
'|': true,
'^': true,
'~': true,
'(': true,
')': true,
}
var op2ch = [...]bool {
'*': true,
'<': true,
'>': true,
}
func neg2(v *Expr, err error) (*Expr, error) {
if err != nil {
return nil, err
} else {
return v.Neg(), nil
}
}
func not2(v *Expr, err error) (*Expr, error) {
if err != nil {
return nil, err
} else {
return v.Not(), nil
}
}
func isop1ch(ch rune) bool {
return ch >= 0 && int(ch) < len(op1ch) && op1ch[ch]
}
func isop2ch(ch rune) bool {
return ch >= 0 && int(ch) < len(op2ch) && op2ch[ch]
}
func isdigit(ch rune) bool {
return ch >= '0' && ch <= '9'
}
func isident(ch rune) bool {
return isdigit(ch) || isident0(ch)
}
func isident0(ch rune) bool {
return (ch == '_') || (ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z')
}
func ishexdigit(ch rune) bool {
return isdigit(ch) || (ch >= 'a' && ch <= 'f') || (ch >= 'A' && ch <= 'F')
}

251
vendor/github.com/cloudwego/iasm/x86_64/arch.go generated vendored Normal file
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//
// Copyright 2024 CloudWeGo Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
package x86_64
import (
`fmt`
)
// ISA represents an extension to x86-64 instruction set.
type ISA uint64
const (
ISA_CPUID ISA = 1 << iota
ISA_RDTSC
ISA_RDTSCP
ISA_CMOV
ISA_MOVBE
ISA_POPCNT
ISA_LZCNT
ISA_TBM
ISA_BMI
ISA_BMI2
ISA_ADX
ISA_MMX
ISA_MMX_PLUS
ISA_FEMMS
ISA_3DNOW
ISA_3DNOW_PLUS
ISA_SSE
ISA_SSE2
ISA_SSE3
ISA_SSSE3
ISA_SSE4A
ISA_SSE4_1
ISA_SSE4_2
ISA_FMA3
ISA_FMA4
ISA_XOP
ISA_F16C
ISA_AVX
ISA_AVX2
ISA_AVX512F
ISA_AVX512BW
ISA_AVX512DQ
ISA_AVX512VL
ISA_AVX512PF
ISA_AVX512ER
ISA_AVX512CD
ISA_AVX512VBMI
ISA_AVX512IFMA
ISA_AVX512VPOPCNTDQ
ISA_AVX512_4VNNIW
ISA_AVX512_4FMAPS
ISA_PREFETCH
ISA_PREFETCHW
ISA_PREFETCHWT1
ISA_CLFLUSH
ISA_CLFLUSHOPT
ISA_CLWB
ISA_CLZERO
ISA_RDRAND
ISA_RDSEED
ISA_PCLMULQDQ
ISA_AES
ISA_SHA
ISA_MONITOR
ISA_MONITORX
ISA_ALL = ^ISA(0)
)
var _ISA_NAMES = map[ISA]string {
ISA_CPUID : "CPUID",
ISA_RDTSC : "RDTSC",
ISA_RDTSCP : "RDTSCP",
ISA_CMOV : "CMOV",
ISA_MOVBE : "MOVBE",
ISA_POPCNT : "POPCNT",
ISA_LZCNT : "LZCNT",
ISA_TBM : "TBM",
ISA_BMI : "BMI",
ISA_BMI2 : "BMI2",
ISA_ADX : "ADX",
ISA_MMX : "MMX",
ISA_MMX_PLUS : "MMX+",
ISA_FEMMS : "FEMMS",
ISA_3DNOW : "3dnow!",
ISA_3DNOW_PLUS : "3dnow!+",
ISA_SSE : "SSE",
ISA_SSE2 : "SSE2",
ISA_SSE3 : "SSE3",
ISA_SSSE3 : "SSSE3",
ISA_SSE4A : "SSE4A",
ISA_SSE4_1 : "SSE4.1",
ISA_SSE4_2 : "SSE4.2",
ISA_FMA3 : "FMA3",
ISA_FMA4 : "FMA4",
ISA_XOP : "XOP",
ISA_F16C : "F16C",
ISA_AVX : "AVX",
ISA_AVX2 : "AVX2",
ISA_AVX512F : "AVX512F",
ISA_AVX512BW : "AVX512BW",
ISA_AVX512DQ : "AVX512DQ",
ISA_AVX512VL : "AVX512VL",
ISA_AVX512PF : "AVX512PF",
ISA_AVX512ER : "AVX512ER",
ISA_AVX512CD : "AVX512CD",
ISA_AVX512VBMI : "AVX512VBMI",
ISA_AVX512IFMA : "AVX512IFMA",
ISA_AVX512VPOPCNTDQ : "AVX512VPOPCNTDQ",
ISA_AVX512_4VNNIW : "AVX512_4VNNIW",
ISA_AVX512_4FMAPS : "AVX512_4FMAPS",
ISA_PREFETCH : "PREFETCH",
ISA_PREFETCHW : "PREFETCHW",
ISA_PREFETCHWT1 : "PREFETCHWT1",
ISA_CLFLUSH : "CLFLUSH",
ISA_CLFLUSHOPT : "CLFLUSHOPT",
ISA_CLWB : "CLWB",
ISA_CLZERO : "CLZERO",
ISA_RDRAND : "RDRAND",
ISA_RDSEED : "RDSEED",
ISA_PCLMULQDQ : "PCLMULQDQ",
ISA_AES : "AES",
ISA_SHA : "SHA",
ISA_MONITOR : "MONITOR",
ISA_MONITORX : "MONITORX",
}
var _ISA_MAPPING = map[string]ISA {
"CPUID" : ISA_CPUID,
"RDTSC" : ISA_RDTSC,
"RDTSCP" : ISA_RDTSCP,
"CMOV" : ISA_CMOV,
"MOVBE" : ISA_MOVBE,
"POPCNT" : ISA_POPCNT,
"LZCNT" : ISA_LZCNT,
"TBM" : ISA_TBM,
"BMI" : ISA_BMI,
"BMI2" : ISA_BMI2,
"ADX" : ISA_ADX,
"MMX" : ISA_MMX,
"MMX+" : ISA_MMX_PLUS,
"FEMMS" : ISA_FEMMS,
"3dnow!" : ISA_3DNOW,
"3dnow!+" : ISA_3DNOW_PLUS,
"SSE" : ISA_SSE,
"SSE2" : ISA_SSE2,
"SSE3" : ISA_SSE3,
"SSSE3" : ISA_SSSE3,
"SSE4A" : ISA_SSE4A,
"SSE4.1" : ISA_SSE4_1,
"SSE4.2" : ISA_SSE4_2,
"FMA3" : ISA_FMA3,
"FMA4" : ISA_FMA4,
"XOP" : ISA_XOP,
"F16C" : ISA_F16C,
"AVX" : ISA_AVX,
"AVX2" : ISA_AVX2,
"AVX512F" : ISA_AVX512F,
"AVX512BW" : ISA_AVX512BW,
"AVX512DQ" : ISA_AVX512DQ,
"AVX512VL" : ISA_AVX512VL,
"AVX512PF" : ISA_AVX512PF,
"AVX512ER" : ISA_AVX512ER,
"AVX512CD" : ISA_AVX512CD,
"AVX512VBMI" : ISA_AVX512VBMI,
"AVX512IFMA" : ISA_AVX512IFMA,
"AVX512VPOPCNTDQ" : ISA_AVX512VPOPCNTDQ,
"AVX512_4VNNIW" : ISA_AVX512_4VNNIW,
"AVX512_4FMAPS" : ISA_AVX512_4FMAPS,
"PREFETCH" : ISA_PREFETCH,
"PREFETCHW" : ISA_PREFETCHW,
"PREFETCHWT1" : ISA_PREFETCHWT1,
"CLFLUSH" : ISA_CLFLUSH,
"CLFLUSHOPT" : ISA_CLFLUSHOPT,
"CLWB" : ISA_CLWB,
"CLZERO" : ISA_CLZERO,
"RDRAND" : ISA_RDRAND,
"RDSEED" : ISA_RDSEED,
"PCLMULQDQ" : ISA_PCLMULQDQ,
"AES" : ISA_AES,
"SHA" : ISA_SHA,
"MONITOR" : ISA_MONITOR,
"MONITORX" : ISA_MONITORX,
}
func (self ISA) String() string {
if v, ok := _ISA_NAMES[self]; ok {
return v
} else {
return fmt.Sprintf("(invalid: %#x)", uint64(self))
}
}
// ParseISA parses name into ISA, it will panic if the name is invalid.
func ParseISA(name string) ISA {
if v, ok := _ISA_MAPPING[name]; ok {
return v
} else {
panic("invalid ISA name: " + name)
}
}
// Arch represents the x86_64 architecture.
type Arch struct {
isa ISA
}
// DefaultArch is the default architecture with all ISA enabled.
var DefaultArch = CreateArch()
// CreateArch creates a new Arch with all ISA enabled.
func CreateArch() *Arch {
return new(Arch).EnableISA(ISA_ALL)
}
// HasISA checks if a particular ISA was enabled.
func (self *Arch) HasISA(isa ISA) bool {
return (self.isa & isa) != 0
}
// EnableISA enables a particular ISA.
func (self *Arch) EnableISA(isa ISA) *Arch {
self.isa |= isa
return self
}
// DisableISA disables a particular ISA.
func (self *Arch) DisableISA(isa ISA) *Arch {
self.isa &^= isa
return self
}
// CreateProgram creates a new empty program.
func (self *Arch) CreateProgram() *Program {
return newProgram(self)
}

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//
// Copyright 2024 CloudWeGo Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//

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//
// Copyright 2024 CloudWeGo Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
package x86_64
func alias_INT3(p *Program, vv ...interface{}) *Instruction {
if len(vv) == 0 {
return p.INT(3)
} else {
panic("instruction INT3 takes no operands")
}
}
func alias_VCMPEQPS(p *Program, vv ...interface{}) *Instruction {
if len(vv) >= 3 {
return p.VCMPPS(0x00, vv[0], vv[1], vv[2], vv[3:]...)
} else {
panic("instruction VCMPEQPS takes 3 or 4 operands")
}
}
func alias_VCMPTRUEPS(p *Program, vv ...interface{}) *Instruction {
if len(vv) >= 3 {
return p.VCMPPS(0x0f, vv[0], vv[1], vv[2], vv[3:]...)
} else {
panic("instruction VCMPTRUEPS takes 3 or 4 operands")
}
}
var _InstructionAliases = map[string]_InstructionEncoder {
"int3" : alias_INT3,
"retq" : Instructions["ret"],
"movabsq" : Instructions["movq"],
"vcmpeqps" : alias_VCMPEQPS,
"vcmptrueps" : alias_VCMPTRUEPS,
}

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//
// Copyright 2024 CloudWeGo Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
package x86_64
import (
`reflect`
`unsafe`
)
type _GoType struct {
size uintptr
pdata uintptr
hash uint32
flags uint8
align uint8
falign uint8
kflags uint8
traits unsafe.Pointer
gcdata *byte
str int32
ptrx int32
}
const (
_KindMask = (1 << 5) - 1
)
func (self *_GoType) kind() reflect.Kind {
return reflect.Kind(self.kflags & _KindMask)
}
type _GoSlice struct {
ptr unsafe.Pointer
len int
cap int
}
type _GoEface struct {
vt *_GoType
ptr unsafe.Pointer
}
func (self *_GoEface) kind() reflect.Kind {
if self.vt != nil {
return self.vt.kind()
} else {
return reflect.Invalid
}
}
func (self *_GoEface) toInt64() int64 {
if self.vt.size == 8 {
return *(*int64)(self.ptr)
} else if self.vt.size == 4 {
return int64(*(*int32)(self.ptr))
} else if self.vt.size == 2 {
return int64(*(*int16)(self.ptr))
} else {
return int64(*(*int8)(self.ptr))
}
}
func efaceOf(v interface{}) _GoEface {
return *(*_GoEface)(unsafe.Pointer(&v))
}

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//
// Copyright 2024 CloudWeGo Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
package x86_64
import (
`encoding/binary`
`math`
)
/** Operand Encoding Helpers **/
func imml(v interface{}) byte {
return byte(toImmAny(v) & 0x0f)
}
func relv(v interface{}) int64 {
switch r := v.(type) {
case *Label : return 0
case RelativeOffset : return int64(r)
default : panic("invalid relative offset")
}
}
func addr(v interface{}) interface{} {
switch a := v.(*MemoryOperand).Addr; a.Type {
case Memory : return a.Memory
case Offset : return a.Offset
case Reference : return a.Reference
default : panic("invalid memory operand type")
}
}
func bcode(v interface{}) byte {
if m, ok := v.(*MemoryOperand); !ok {
panic("v is not a memory operand")
} else if m.Broadcast == 0 {
return 0
} else {
return 1
}
}
func vcode(v interface{}) byte {
switch r := v.(type) {
case XMMRegister : return byte(r)
case YMMRegister : return byte(r)
case ZMMRegister : return byte(r)
case MaskedRegister : return vcode(r.Reg)
default : panic("v is not a vector register")
}
}
func kcode(v interface{}) byte {
switch r := v.(type) {
case KRegister : return byte(r)
case XMMRegister : return 0
case YMMRegister : return 0
case ZMMRegister : return 0
case RegisterMask : return byte(r.K)
case MaskedRegister : return byte(r.Mask.K)
case *MemoryOperand : return toKcodeMem(r)
default : panic("v is not a maskable operand")
}
}
func zcode(v interface{}) byte {
switch r := v.(type) {
case KRegister : return 0
case XMMRegister : return 0
case YMMRegister : return 0
case ZMMRegister : return 0
case RegisterMask : return toZcodeRegM(r)
case MaskedRegister : return toZcodeRegM(r.Mask)
case *MemoryOperand : return toZcodeMem(r)
default : panic("v is not a maskable operand")
}
}
func lcode(v interface{}) byte {
switch r := v.(type) {
case Register8 : return byte(r & 0x07)
case Register16 : return byte(r & 0x07)
case Register32 : return byte(r & 0x07)
case Register64 : return byte(r & 0x07)
case KRegister : return byte(r & 0x07)
case MMRegister : return byte(r & 0x07)
case XMMRegister : return byte(r & 0x07)
case YMMRegister : return byte(r & 0x07)
case ZMMRegister : return byte(r & 0x07)
case MaskedRegister : return lcode(r.Reg)
default : panic("v is not a register")
}
}
func hcode(v interface{}) byte {
switch r := v.(type) {
case Register8 : return byte(r >> 3) & 1
case Register16 : return byte(r >> 3) & 1
case Register32 : return byte(r >> 3) & 1
case Register64 : return byte(r >> 3) & 1
case KRegister : return byte(r >> 3) & 1
case MMRegister : return byte(r >> 3) & 1
case XMMRegister : return byte(r >> 3) & 1
case YMMRegister : return byte(r >> 3) & 1
case ZMMRegister : return byte(r >> 3) & 1
case MaskedRegister : return hcode(r.Reg)
default : panic("v is not a register")
}
}
func ecode(v interface{}) byte {
switch r := v.(type) {
case Register8 : return byte(r >> 4) & 1
case Register16 : return byte(r >> 4) & 1
case Register32 : return byte(r >> 4) & 1
case Register64 : return byte(r >> 4) & 1
case KRegister : return byte(r >> 4) & 1
case MMRegister : return byte(r >> 4) & 1
case XMMRegister : return byte(r >> 4) & 1
case YMMRegister : return byte(r >> 4) & 1
case ZMMRegister : return byte(r >> 4) & 1
case MaskedRegister : return ecode(r.Reg)
default : panic("v is not a register")
}
}
func hlcode(v interface{}) byte {
switch r := v.(type) {
case Register8 : return toHLcodeReg8(r)
case Register16 : return byte(r & 0x0f)
case Register32 : return byte(r & 0x0f)
case Register64 : return byte(r & 0x0f)
case KRegister : return byte(r & 0x0f)
case MMRegister : return byte(r & 0x0f)
case XMMRegister : return byte(r & 0x0f)
case YMMRegister : return byte(r & 0x0f)
case ZMMRegister : return byte(r & 0x0f)
case MaskedRegister : return hlcode(r.Reg)
default : panic("v is not a register")
}
}
func ehcode(v interface{}) byte {
switch r := v.(type) {
case Register8 : return byte(r >> 3) & 0x03
case Register16 : return byte(r >> 3) & 0x03
case Register32 : return byte(r >> 3) & 0x03
case Register64 : return byte(r >> 3) & 0x03
case KRegister : return byte(r >> 3) & 0x03
case MMRegister : return byte(r >> 3) & 0x03
case XMMRegister : return byte(r >> 3) & 0x03
case YMMRegister : return byte(r >> 3) & 0x03
case ZMMRegister : return byte(r >> 3) & 0x03
case MaskedRegister : return ehcode(r.Reg)
default : panic("v is not a register")
}
}
func toImmAny(v interface{}) int64 {
if x, ok := asInt64(v); ok {
return x
} else {
panic("value is not an integer")
}
}
func toHcodeOpt(v interface{}) byte {
if v == nil {
return 0
} else {
return hcode(v)
}
}
func toEcodeVMM(v interface{}, x byte) byte {
switch r := v.(type) {
case XMMRegister : return ecode(r)
case YMMRegister : return ecode(r)
case ZMMRegister : return ecode(r)
default : return x
}
}
func toKcodeMem(v *MemoryOperand) byte {
if !v.Masked {
return 0
} else {
return byte(v.Mask.K)
}
}
func toZcodeMem(v *MemoryOperand) byte {
if !v.Masked || v.Mask.Z {
return 0
} else {
return 1
}
}
func toZcodeRegM(v RegisterMask) byte {
if v.Z {
return 1
} else {
return 0
}
}
func toHLcodeReg8(v Register8) byte {
switch v {
case AH: fallthrough
case BH: fallthrough
case CH: fallthrough
case DH: panic("ah/bh/ch/dh registers never use 4-bit encoding")
default: return byte(v & 0x0f)
}
}
/** Instruction Encoding Helpers **/
const (
_N_inst = 16
)
const (
_F_rel1 = 1 << iota
_F_rel4
)
type _Encoding struct {
len int
flags int
bytes [_N_inst]byte
encoder func(m *_Encoding, v []interface{})
}
// buf ensures len + n <= len(bytes).
func (self *_Encoding) buf(n int) []byte {
if i := self.len; i + n > _N_inst {
panic("instruction too long")
} else {
return self.bytes[i:]
}
}
// emit encodes a single byte.
func (self *_Encoding) emit(v byte) {
self.buf(1)[0] = v
self.len++
}
// imm1 encodes a single byte immediate value.
func (self *_Encoding) imm1(v int64) {
self.emit(byte(v))
}
// imm2 encodes a two-byte immediate value in little-endian.
func (self *_Encoding) imm2(v int64) {
binary.LittleEndian.PutUint16(self.buf(2), uint16(v))
self.len += 2
}
// imm4 encodes a 4-byte immediate value in little-endian.
func (self *_Encoding) imm4(v int64) {
binary.LittleEndian.PutUint32(self.buf(4), uint32(v))
self.len += 4
}
// imm8 encodes an 8-byte immediate value in little-endian.
func (self *_Encoding) imm8(v int64) {
binary.LittleEndian.PutUint64(self.buf(8), uint64(v))
self.len += 8
}
// vex2 encodes a 2-byte or 3-byte VEX prefix.
//
// 2-byte VEX prefix:
// Requires: VEX.W = 0, VEX.mmmmm = 0b00001 and VEX.B = VEX.X = 0
// +----------------+
// Byte 0: | Bits 0-7: 0xc5 |
// +----------------+
//
// +-----------+----------------+----------+--------------+
// Byte 1: | Bit 7: ~R | Bits 3-6 ~vvvv | Bit 2: L | Bits 0-1: pp |
// +-----------+----------------+----------+--------------+
//
// 3-byte VEX prefix:
// +----------------+
// Byte 0: | Bits 0-7: 0xc4 |
// +----------------+
//
// +-----------+-----------+-----------+-------------------+
// Byte 1: | Bit 7: ~R | Bit 6: ~X | Bit 5: ~B | Bits 0-4: 0b00001 |
// +-----------+-----------+-----------+-------------------+
//
// +----------+-----------------+----------+--------------+
// Byte 2: | Bit 7: 0 | Bits 3-6: ~vvvv | Bit 2: L | Bits 0-1: pp |
// +----------+-----------------+----------+--------------+
//
func (self *_Encoding) vex2(lpp byte, r byte, rm interface{}, vvvv byte) {
var b byte
var x byte
/* VEX.R must be a single-bit mask */
if r > 1 {
panic("VEX.R must be a 1-bit mask")
}
/* VEX.Lpp must be a 3-bit mask */
if lpp &^ 0b111 != 0 {
panic("VEX.Lpp must be a 3-bit mask")
}
/* VEX.vvvv must be a 4-bit mask */
if vvvv &^ 0b1111 != 0 {
panic("VEX.vvvv must be a 4-bit mask")
}
/* encode the RM bits if any */
if rm != nil {
switch v := rm.(type) {
case *Label : break
case Register : b = hcode(v)
case MemoryAddress : b, x = toHcodeOpt(v.Base), toHcodeOpt(v.Index)
case RelativeOffset : break
default : panic("rm is expected to be a register or a memory address")
}
}
/* if VEX.B and VEX.X are zeroes, 2-byte VEX prefix can be used */
if x == 0 && b == 0 {
self.emit(0xc5)
self.emit(0xf8 ^ (r << 7) ^ (vvvv << 3) ^ lpp)
} else {
self.emit(0xc4)
self.emit(0xe1 ^ (r << 7) ^ (x << 6) ^ (b << 5))
self.emit(0x78 ^ (vvvv << 3) ^ lpp)
}
}
// vex3 encodes a 3-byte VEX or XOP prefix.
//
// 3-byte VEX/XOP prefix
// +-----------------------------------+
// Byte 0: | Bits 0-7: 0xc4 (VEX) / 0x8f (XOP) |
// +-----------------------------------+
//
// +-----------+-----------+-----------+-----------------+
// Byte 1: | Bit 7: ~R | Bit 6: ~X | Bit 5: ~B | Bits 0-4: mmmmm |
// +-----------+-----------+-----------+-----------------+
//
// +----------+-----------------+----------+--------------+
// Byte 2: | Bit 7: W | Bits 3-6: ~vvvv | Bit 2: L | Bits 0-1: pp |
// +----------+-----------------+----------+--------------+
//
func (self *_Encoding) vex3(esc byte, mmmmm byte, wlpp byte, r byte, rm interface{}, vvvv byte) {
var b byte
var x byte
/* VEX.R must be a single-bit mask */
if r > 1 {
panic("VEX.R must be a 1-bit mask")
}
/* VEX.vvvv must be a 4-bit mask */
if vvvv &^ 0b1111 != 0 {
panic("VEX.vvvv must be a 4-bit mask")
}
/* escape must be a 3-byte VEX (0xc4) or XOP (0x8f) prefix */
if esc != 0xc4 && esc != 0x8f {
panic("escape must be a 3-byte VEX (0xc4) or XOP (0x8f) prefix")
}
/* VEX.W____Lpp is expected to have no bits set except 0, 1, 2 and 7 */
if wlpp &^ 0b10000111 != 0 {
panic("VEX.W____Lpp is expected to have no bits set except 0, 1, 2 and 7")
}
/* VEX.m-mmmm is expected to be a 5-bit mask */
if mmmmm &^ 0b11111 != 0 {
panic("VEX.m-mmmm is expected to be a 5-bit mask")
}
/* encode the RM bits */
switch v := rm.(type) {
case *Label : break
case MemoryAddress : b, x = toHcodeOpt(v.Base), toHcodeOpt(v.Index)
case RelativeOffset : break
default : panic("rm is expected to be a register or a memory address")
}
/* encode the 3-byte VEX or XOP prefix */
self.emit(esc)
self.emit(0xe0 ^ (r << 7) ^ (x << 6) ^ (b << 5) ^ mmmmm)
self.emit(0x78 ^ (vvvv << 3) ^ wlpp)
}
// evex encodes a 4-byte EVEX prefix.
func (self *_Encoding) evex(mm byte, w1pp byte, ll byte, rr byte, rm interface{}, vvvvv byte, aaa byte, zz byte, bb byte) {
var b byte
var x byte
/* EVEX.b must be a single-bit mask */
if bb > 1 {
panic("EVEX.b must be a 1-bit mask")
}
/* EVEX.z must be a single-bit mask */
if zz > 1 {
panic("EVEX.z must be a 1-bit mask")
}
/* EVEX.mm must be a 2-bit mask */
if mm &^ 0b11 != 0 {
panic("EVEX.mm must be a 2-bit mask")
}
/* EVEX.L'L must be a 2-bit mask */
if ll &^ 0b11 != 0 {
panic("EVEX.L'L must be a 2-bit mask")
}
/* EVEX.R'R must be a 2-bit mask */
if rr &^ 0b11 != 0 {
panic("EVEX.R'R must be a 2-bit mask")
}
/* EVEX.aaa must be a 3-bit mask */
if aaa &^ 0b111 != 0 {
panic("EVEX.aaa must be a 3-bit mask")
}
/* EVEX.v'vvvv must be a 5-bit mask */
if vvvvv &^ 0b11111 != 0 {
panic("EVEX.v'vvvv must be a 5-bit mask")
}
/* EVEX.W____1pp is expected to have no bits set except 0, 1, 2, and 7 */
if w1pp &^ 0b10000011 != 0b100 {
panic("EVEX.W____1pp is expected to have no bits set except 0, 1, 2, and 7")
}
/* extract bits from EVEX.R'R and EVEX.v'vvvv */
r1, r0 := rr >> 1, rr & 1
v1, v0 := vvvvv >> 4, vvvvv & 0b1111
/* encode the RM bits if any */
if rm != nil {
switch m := rm.(type) {
case *Label : break
case Register : b, x = hcode(m), ecode(m)
case MemoryAddress : b, x, v1 = toHcodeOpt(m.Base), toHcodeOpt(m.Index), toEcodeVMM(m.Index, v1)
case RelativeOffset : break
default : panic("rm is expected to be a register or a memory address")
}
}
/* EVEX prefix bytes */
p0 := (r0 << 7) | (x << 6) | (b << 5) | (r1 << 4) | mm
p1 := (v0 << 3) | w1pp
p2 := (zz << 7) | (ll << 5) | (b << 4) | (v1 << 3) | aaa
/* p0: invert RXBR' (bits 4-7)
* p1: invert vvvv (bits 3-6)
* p2: invert V' (bit 3) */
self.emit(0x62)
self.emit(p0 ^ 0xf0)
self.emit(p1 ^ 0x78)
self.emit(p2 ^ 0x08)
}
// rexm encodes a mandatory REX prefix.
func (self *_Encoding) rexm(w byte, r byte, rm interface{}) {
var b byte
var x byte
/* REX.R must be 0 or 1 */
if r != 0 && r != 1 {
panic("REX.R must be 0 or 1")
}
/* REX.W must be 0 or 1 */
if w != 0 && w != 1 {
panic("REX.W must be 0 or 1")
}
/* encode the RM bits */
switch v := rm.(type) {
case *Label : break
case MemoryAddress : b, x = toHcodeOpt(v.Base), toHcodeOpt(v.Index)
case RelativeOffset : break
default : panic("rm is expected to be a register or a memory address")
}
/* encode the REX prefix */
self.emit(0x40 | (w << 3) | (r << 2) | (x << 1) | b)
}
// rexo encodes an optional REX prefix.
func (self *_Encoding) rexo(r byte, rm interface{}, force bool) {
var b byte
var x byte
/* REX.R must be 0 or 1 */
if r != 0 && r != 1 {
panic("REX.R must be 0 or 1")
}
/* encode the RM bits */
switch v := rm.(type) {
case *Label : break
case Register : b = hcode(v)
case MemoryAddress : b, x = toHcodeOpt(v.Base), toHcodeOpt(v.Index)
case RelativeOffset : break
default : panic("rm is expected to be a register or a memory address")
}
/* if REX.R, REX.X, and REX.B are all zeroes, REX prefix can be omitted */
if force || r != 0 || x != 0 || b != 0 {
self.emit(0x40 | (r << 2) | (x << 1) | b)
}
}
// mrsd encodes ModR/M, SIB and Displacement.
//
// ModR/M byte
// +----------------+---------------+---------------+
// | Bits 6-7: Mode | Bits 3-5: Reg | Bits 0-2: R/M |
// +----------------+---------------+---------------+
//
// SIB byte
// +-----------------+-----------------+----------------+
// | Bits 6-7: Scale | Bits 3-5: Index | Bits 0-2: Base |
// +-----------------+-----------------+----------------+
//
func (self *_Encoding) mrsd(reg byte, rm interface{}, disp8v int32) {
var ok bool
var mm MemoryAddress
var ro RelativeOffset
/* ModRM encodes the lower 3-bit of the register */
if reg > 7 {
panic("invalid register bits")
}
/* check the displacement scale */
switch disp8v {
case 1: break
case 2: break
case 4: break
case 8: break
case 16: break
case 32: break
case 64: break
default: panic("invalid displacement size")
}
/* special case: unresolved labels, assuming a zero offset */
if _, ok = rm.(*Label); ok {
self.emit(0x05 | (reg << 3))
self.imm4(0)
return
}
/* special case: RIP-relative offset
* ModRM.Mode == 0 and ModeRM.R/M == 5 indicates (rip + disp32) addressing */
if ro, ok = rm.(RelativeOffset); ok {
self.emit(0x05 | (reg << 3))
self.imm4(int64(ro))
return
}
/* must be a generic memory address */
if mm, ok = rm.(MemoryAddress); !ok {
panic("rm must be a memory address")
}
/* absolute addressing, encoded as disp(%rbp,%rsp,1) */
if mm.Base == nil && mm.Index == nil {
self.emit(0x04 | (reg << 3))
self.emit(0x25)
self.imm4(int64(mm.Displacement))
return
}
/* no SIB byte */
if mm.Index == nil && lcode(mm.Base) != 0b100 {
cc := lcode(mm.Base)
dv := mm.Displacement
/* ModRM.Mode == 0 (no displacement) */
if dv == 0 && mm.Base != RBP && mm.Base != R13 {
if cc == 0b101 {
panic("rbp/r13 is not encodable as a base register (interpreted as disp32 address)")
} else {
self.emit((reg << 3) | cc)
return
}
}
/* ModRM.Mode == 1 (8-bit displacement) */
if dq := dv / disp8v; dq >= math.MinInt8 && dq <= math.MaxInt8 && dv % disp8v == 0 {
self.emit(0x40 | (reg << 3) | cc)
self.imm1(int64(dq))
return
}
/* ModRM.Mode == 2 (32-bit displacement) */
self.emit(0x80 | (reg << 3) | cc)
self.imm4(int64(mm.Displacement))
return
}
/* all encodings below use ModRM.R/M = 4 (0b100) to indicate the presence of SIB */
if mm.Index == RSP {
panic("rsp is not encodable as an index register (interpreted as no index)")
}
/* index = 4 (0b100) denotes no-index encoding */
var scale byte
var index byte = 0x04
/* encode the scale byte */
if mm.Scale != 0 {
switch mm.Scale {
case 1 : scale = 0
case 2 : scale = 1
case 4 : scale = 2
case 8 : scale = 3
default : panic("invalid scale value")
}
}
/* encode the index byte */
if mm.Index != nil {
index = lcode(mm.Index)
}
/* SIB.Base = 5 (0b101) and ModRM.Mode = 0 indicates no-base encoding with disp32 */
if mm.Base == nil {
self.emit((reg << 3) | 0b100)
self.emit((scale << 6) | (index << 3) | 0b101)
self.imm4(int64(mm.Displacement))
return
}
/* base L-code & displacement value */
cc := lcode(mm.Base)
dv := mm.Displacement
/* ModRM.Mode == 0 (no displacement) */
if dv == 0 && cc != 0b101 {
self.emit((reg << 3) | 0b100)
self.emit((scale << 6) | (index << 3) | cc)
return
}
/* ModRM.Mode == 1 (8-bit displacement) */
if dq := dv / disp8v; dq >= math.MinInt8 && dq <= math.MaxInt8 && dv % disp8v == 0 {
self.emit(0x44 | (reg << 3))
self.emit((scale << 6) | (index << 3) | cc)
self.imm1(int64(dq))
return
}
/* ModRM.Mode == 2 (32-bit displacement) */
self.emit(0x84 | (reg << 3))
self.emit((scale << 6) | (index << 3) | cc)
self.imm4(int64(mm.Displacement))
}
// encode invokes the encoder to encode this instruction.
func (self *_Encoding) encode(v []interface{}) int {
self.len = 0
self.encoder(self, v)
return self.len
}

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//
// Copyright 2024 CloudWeGo Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
package x86_64
import (
"errors"
"fmt"
"math"
"reflect"
"strconv"
"strings"
"sync/atomic"
)
// RelativeOffset represents an RIP-relative offset.
type RelativeOffset int32
// String implements the fmt.Stringer interface.
func (self RelativeOffset) String() string {
if self == 0 {
return "(%rip)"
} else {
return fmt.Sprintf("%d(%%rip)", self)
}
}
// RoundingControl represents a floating-point rounding option.
type RoundingControl uint8
const (
// RN_SAE represents "Round Nearest", which is the default rounding option.
RN_SAE RoundingControl = iota
// RD_SAE represents "Round Down".
RD_SAE
// RU_SAE represents "Round Up".
RU_SAE
// RZ_SAE represents "Round towards Zero".
RZ_SAE
)
var _RC_NAMES = map[RoundingControl]string{
RN_SAE: "rn-sae",
RD_SAE: "rd-sae",
RU_SAE: "ru-sae",
RZ_SAE: "rz-sae",
}
func (self RoundingControl) String() string {
if v, ok := _RC_NAMES[self]; ok {
return v
} else {
panic("invalid RoundingControl value")
}
}
// ExceptionControl represents the "Suppress All Exceptions" flag.
type ExceptionControl uint8
const (
// SAE represents the flag "Suppress All Exceptions" for floating point operations.
SAE ExceptionControl = iota
)
func (ExceptionControl) String() string {
return "sae"
}
// AddressType indicates which kind of value that an Addressable object contains.
type AddressType uint
const (
// None indicates the Addressable does not contain any addressable value.
None AddressType = iota
// Memory indicates the Addressable contains a memory address.
Memory
// Offset indicates the Addressable contains an RIP-relative offset.
Offset
// Reference indicates the Addressable contains a label reference.
Reference
)
// Disposable is a type of object that can be Free'd manually.
type Disposable interface {
Free()
}
// Label represents a location within the program.
type Label struct {
refs int64
Name string
Dest *Instruction
}
func (self *Label) offset(p uintptr, n int) RelativeOffset {
if self.Dest == nil {
panic("unresolved label: " + self.Name)
} else {
return RelativeOffset(self.Dest.pc - p - uintptr(n))
}
}
// Free decreases the reference count of a Label, if the
// refcount drops to 0, the Label will be recycled.
func (self *Label) Free() {
if atomic.AddInt64(&self.refs, -1) == 0 {
//freeLabel(self)
}
}
// String implements the fmt.Stringer interface.
func (self *Label) String() string {
if self.Dest == nil {
return fmt.Sprintf("%s(%%rip)", self.Name)
} else {
return fmt.Sprintf("%s(%%rip)@%#x", self.Name, self.Dest.pc)
}
}
// Retain increases the reference count of a Label.
func (self *Label) Retain() *Label {
atomic.AddInt64(&self.refs, 1)
return self
}
// Evaluate implements the interface expr.Term.
func (self *Label) Evaluate() (int64, error) {
if self.Dest != nil {
return int64(self.Dest.pc), nil
} else {
return 0, errors.New("unresolved label: " + self.Name)
}
}
// Addressable is a union to represent an addressable operand.
type Addressable struct {
Type AddressType
Memory MemoryAddress
Offset RelativeOffset
Reference *Label
}
// String implements the fmt.Stringer interface.
func (self *Addressable) String() string {
switch self.Type {
case None:
return "(not addressable)"
case Memory:
return self.Memory.String()
case Offset:
return self.Offset.String()
case Reference:
return self.Reference.String()
default:
return "(invalid addressable)"
}
}
// MemoryOperand represents a memory operand for an instruction.
type MemoryOperand struct {
refs int64
Size int
Addr Addressable
Mask RegisterMask
Masked bool
Broadcast uint8
}
const (
_Sizes = 0b10000000100010111 // bit-mask for valid sizes (0, 1, 2, 4, 8, 16)
)
func (self *MemoryOperand) isVMX(evex bool) bool {
return self.Addr.Type == Memory && self.Addr.Memory.isVMX(evex)
}
func (self *MemoryOperand) isVMY(evex bool) bool {
return self.Addr.Type == Memory && self.Addr.Memory.isVMY(evex)
}
func (self *MemoryOperand) isVMZ() bool {
return self.Addr.Type == Memory && self.Addr.Memory.isVMZ()
}
func (self *MemoryOperand) isMem() bool {
if (_Sizes & (1 << self.Broadcast)) == 0 {
return false
} else if self.Addr.Type == Memory {
return self.Addr.Memory.isMem()
} else if self.Addr.Type == Offset {
return true
} else if self.Addr.Type == Reference {
return true
} else {
return false
}
}
func (self *MemoryOperand) isSize(n int) bool {
return self.Size == 0 || self.Size == n
}
func (self *MemoryOperand) isBroadcast(n int, b uint8) bool {
return self.Size == n && self.Broadcast == b
}
func (self *MemoryOperand) formatMask() string {
if !self.Masked {
return ""
} else {
return self.Mask.String()
}
}
func (self *MemoryOperand) formatBroadcast() string {
if self.Broadcast == 0 {
return ""
} else {
return fmt.Sprintf("{1to%d}", self.Broadcast)
}
}
func (self *MemoryOperand) ensureAddrValid() {
switch self.Addr.Type {
case None:
break
case Memory:
self.Addr.Memory.EnsureValid()
case Offset:
break
case Reference:
break
default:
panic("invalid address type")
}
}
func (self *MemoryOperand) ensureSizeValid() {
if (_Sizes & (1 << self.Size)) == 0 {
panic("invalid memory operand size")
}
}
func (self *MemoryOperand) ensureBroadcastValid() {
if (_Sizes & (1 << self.Broadcast)) == 0 {
panic("invalid memory operand broadcast")
}
}
// Free decreases the reference count of a MemoryOperand, if the
// refcount drops to 0, the Label will be recycled.
func (self *MemoryOperand) Free() {
if atomic.AddInt64(&self.refs, -1) == 0 {
//freeMemoryOperand(self)
}
}
// String implements the fmt.Stringer interface.
func (self *MemoryOperand) String() string {
return self.Addr.String() + self.formatMask() + self.formatBroadcast()
}
// Retain increases the reference count of a MemoryOperand.
func (self *MemoryOperand) Retain() *MemoryOperand {
atomic.AddInt64(&self.refs, 1)
return self
}
// EnsureValid checks if the memory operand is valid, if not, it panics.
func (self *MemoryOperand) EnsureValid() {
self.ensureAddrValid()
self.ensureSizeValid()
self.ensureBroadcastValid()
}
// MemoryAddress represents a memory address.
type MemoryAddress struct {
Base Register
Index Register
Scale uint8
Displacement int32
}
const (
_Scales = 0b100010111 // bit-mask for valid scales (0, 1, 2, 4, 8)
)
func (self *MemoryAddress) isVMX(evex bool) bool {
return self.isMemBase() && (self.Index == nil || isXMM(self.Index) || (evex && isEVEXXMM(self.Index)))
}
func (self *MemoryAddress) isVMY(evex bool) bool {
return self.isMemBase() && (self.Index == nil || isYMM(self.Index) || (evex && isEVEXYMM(self.Index)))
}
func (self *MemoryAddress) isVMZ() bool {
return self.isMemBase() && (self.Index == nil || isZMM(self.Index))
}
func (self *MemoryAddress) isMem() bool {
return self.isMemBase() && (self.Index == nil || isReg64(self.Index))
}
func (self *MemoryAddress) isMemBase() bool {
return (self.Base == nil || isReg64(self.Base)) && // `Base` must be 64-bit if present
(self.Scale == 0) == (self.Index == nil) && // `Scale` and `Index` depends on each other
(_Scales&(1<<self.Scale)) != 0 // `Scale` can only be 0, 1, 2, 4 or 8
}
// String implements the fmt.Stringer interface.
func (self *MemoryAddress) String() string {
var dp int
var sb strings.Builder
/* the displacement part */
if dp = int(self.Displacement); dp != 0 {
sb.WriteString(strconv.Itoa(dp))
}
/* the base register */
if sb.WriteByte('('); self.Base != nil {
sb.WriteByte('%')
sb.WriteString(self.Base.String())
}
/* index is optional */
if self.Index != nil {
sb.WriteString(",%")
sb.WriteString(self.Index.String())
/* scale is also optional */
if self.Scale >= 2 {
sb.WriteByte(',')
sb.WriteString(strconv.Itoa(int(self.Scale)))
}
}
/* close the bracket */
sb.WriteByte(')')
return sb.String()
}
// EnsureValid checks if the memory address is valid, if not, it panics.
func (self *MemoryAddress) EnsureValid() {
if !self.isMemBase() || (self.Index != nil && !isIndexable(self.Index)) {
panic("not a valid memory address")
}
}
// Ref constructs a memory reference to a label.
func Ref(ref *Label) (v *MemoryOperand) {
v = CreateMemoryOperand()
v.Addr.Type = Reference
v.Addr.Reference = ref
return
}
// Abs construct a simple memory address that represents absolute addressing.
func Abs(disp int32) *MemoryOperand {
return Sib(nil, nil, 0, disp)
}
// Ptr constructs a simple memory operand with base and displacement.
func Ptr(base Register, disp int32) *MemoryOperand {
return Sib(base, nil, 0, disp)
}
// Sib constructs a simple memory operand that represents a complete memory address.
func Sib(base Register, index Register, scale uint8, disp int32) (v *MemoryOperand) {
v = CreateMemoryOperand()
v.Addr.Type = Memory
v.Addr.Memory.Base = base
v.Addr.Memory.Index = index
v.Addr.Memory.Scale = scale
v.Addr.Memory.Displacement = disp
v.EnsureValid()
return
}
/** Operand Matching Helpers **/
const _IntMask = (1 << reflect.Int) |
(1 << reflect.Int8) |
(1 << reflect.Int16) |
(1 << reflect.Int32) |
(1 << reflect.Int64) |
(1 << reflect.Uint) |
(1 << reflect.Uint8) |
(1 << reflect.Uint16) |
(1 << reflect.Uint32) |
(1 << reflect.Uint64) |
(1 << reflect.Uintptr)
func isInt(k reflect.Kind) bool {
return (_IntMask & (1 << k)) != 0
}
func asInt64(v interface{}) (int64, bool) {
if isSpecial(v) {
return 0, false
} else if x := efaceOf(v); isInt(x.kind()) {
return x.toInt64(), true
} else {
return 0, false
}
}
func inRange(v interface{}, low int64, high int64) bool {
x, ok := asInt64(v)
return ok && x >= low && x <= high
}
func isSpecial(v interface{}) bool {
switch v.(type) {
case Register8:
return true
case Register16:
return true
case Register32:
return true
case Register64:
return true
case KRegister:
return true
case MMRegister:
return true
case XMMRegister:
return true
case YMMRegister:
return true
case ZMMRegister:
return true
case RelativeOffset:
return true
case RoundingControl:
return true
case ExceptionControl:
return true
default:
return false
}
}
func isIndexable(v interface{}) bool {
return isZMM(v) || isReg64(v) || isEVEXXMM(v) || isEVEXYMM(v)
}
func isImm4(v interface{}) bool { return inRange(v, 0, 15) }
func isImm8(v interface{}) bool { return inRange(v, math.MinInt8, math.MaxUint8) }
func isImm16(v interface{}) bool { return inRange(v, math.MinInt16, math.MaxUint16) }
func isImm32(v interface{}) bool { return inRange(v, math.MinInt32, math.MaxUint32) }
func isImm64(v interface{}) bool { _, r := asInt64(v); return r }
func isConst1(v interface{}) bool { x, r := asInt64(v); return r && x == 1 }
func isConst3(v interface{}) bool { x, r := asInt64(v); return r && x == 3 }
func isRel8(v interface{}) bool {
x, r := v.(RelativeOffset)
return r && x >= math.MinInt8 && x <= math.MaxInt8
}
func isRel32(v interface{}) bool { _, r := v.(RelativeOffset); return r }
func isLabel(v interface{}) bool { _, r := v.(*Label); return r }
func isReg8(v interface{}) bool { _, r := v.(Register8); return r }
func isReg8REX(v interface{}) bool {
x, r := v.(Register8)
return r && (x&0x80) == 0 && x >= SPL
}
func isReg16(v interface{}) bool { _, r := v.(Register16); return r }
func isReg32(v interface{}) bool { _, r := v.(Register32); return r }
func isReg64(v interface{}) bool { _, r := v.(Register64); return r }
func isMM(v interface{}) bool { _, r := v.(MMRegister); return r }
func isXMM(v interface{}) bool { x, r := v.(XMMRegister); return r && x <= XMM15 }
func isEVEXXMM(v interface{}) bool { _, r := v.(XMMRegister); return r }
func isXMMk(v interface{}) bool {
x, r := v.(MaskedRegister)
return isXMM(v) || (r && isXMM(x.Reg) && !x.Mask.Z)
}
func isXMMkz(v interface{}) bool {
x, r := v.(MaskedRegister)
return isXMM(v) || (r && isXMM(x.Reg))
}
func isYMM(v interface{}) bool { x, r := v.(YMMRegister); return r && x <= YMM15 }
func isEVEXYMM(v interface{}) bool { _, r := v.(YMMRegister); return r }
func isYMMk(v interface{}) bool {
x, r := v.(MaskedRegister)
return isYMM(v) || (r && isYMM(x.Reg) && !x.Mask.Z)
}
func isYMMkz(v interface{}) bool {
x, r := v.(MaskedRegister)
return isYMM(v) || (r && isYMM(x.Reg))
}
func isZMM(v interface{}) bool { _, r := v.(ZMMRegister); return r }
func isZMMk(v interface{}) bool {
x, r := v.(MaskedRegister)
return isZMM(v) || (r && isZMM(x.Reg) && !x.Mask.Z)
}
func isZMMkz(v interface{}) bool {
x, r := v.(MaskedRegister)
return isZMM(v) || (r && isZMM(x.Reg))
}
func isK(v interface{}) bool { _, r := v.(KRegister); return r }
func isKk(v interface{}) bool {
x, r := v.(MaskedRegister)
return isK(v) || (r && isK(x.Reg) && !x.Mask.Z)
}
func isM(v interface{}) bool {
x, r := v.(*MemoryOperand)
return r && x.isMem() && x.Broadcast == 0 && !x.Masked
}
func isMk(v interface{}) bool {
x, r := v.(*MemoryOperand)
return r && x.isMem() && x.Broadcast == 0 && !(x.Masked && x.Mask.Z)
}
func isMkz(v interface{}) bool {
x, r := v.(*MemoryOperand)
return r && x.isMem() && x.Broadcast == 0
}
func isM8(v interface{}) bool {
x, r := v.(*MemoryOperand)
return r && isM(v) && x.isSize(1)
}
func isM16(v interface{}) bool {
x, r := v.(*MemoryOperand)
return r && isM(v) && x.isSize(2)
}
func isM16kz(v interface{}) bool {
x, r := v.(*MemoryOperand)
return r && isMkz(v) && x.isSize(2)
}
func isM32(v interface{}) bool {
x, r := v.(*MemoryOperand)
return r && isM(v) && x.isSize(4)
}
func isM32k(v interface{}) bool {
x, r := v.(*MemoryOperand)
return r && isMk(v) && x.isSize(4)
}
func isM32kz(v interface{}) bool {
x, r := v.(*MemoryOperand)
return r && isMkz(v) && x.isSize(4)
}
func isM64(v interface{}) bool {
x, r := v.(*MemoryOperand)
return r && isM(v) && x.isSize(8)
}
func isM64k(v interface{}) bool {
x, r := v.(*MemoryOperand)
return r && isMk(v) && x.isSize(8)
}
func isM64kz(v interface{}) bool {
x, r := v.(*MemoryOperand)
return r && isMkz(v) && x.isSize(8)
}
func isM128(v interface{}) bool {
x, r := v.(*MemoryOperand)
return r && isM(v) && x.isSize(16)
}
func isM128kz(v interface{}) bool {
x, r := v.(*MemoryOperand)
return r && isMkz(v) && x.isSize(16)
}
func isM256(v interface{}) bool {
x, r := v.(*MemoryOperand)
return r && isM(v) && x.isSize(32)
}
func isM256kz(v interface{}) bool {
x, r := v.(*MemoryOperand)
return r && isMkz(v) && x.isSize(32)
}
func isM512(v interface{}) bool {
x, r := v.(*MemoryOperand)
return r && isM(v) && x.isSize(64)
}
func isM512kz(v interface{}) bool {
x, r := v.(*MemoryOperand)
return r && isMkz(v) && x.isSize(64)
}
func isM64M32bcst(v interface{}) bool {
x, r := v.(*MemoryOperand)
return isM64(v) || (r && x.isBroadcast(4, 2))
}
func isM128M32bcst(v interface{}) bool {
x, r := v.(*MemoryOperand)
return isM128(v) || (r && x.isBroadcast(4, 4))
}
func isM256M32bcst(v interface{}) bool {
x, r := v.(*MemoryOperand)
return isM256(v) || (r && x.isBroadcast(4, 8))
}
func isM512M32bcst(v interface{}) bool {
x, r := v.(*MemoryOperand)
return isM512(v) || (r && x.isBroadcast(4, 16))
}
func isM128M64bcst(v interface{}) bool {
x, r := v.(*MemoryOperand)
return isM128(v) || (r && x.isBroadcast(8, 2))
}
func isM256M64bcst(v interface{}) bool {
x, r := v.(*MemoryOperand)
return isM256(v) || (r && x.isBroadcast(8, 4))
}
func isM512M64bcst(v interface{}) bool {
x, r := v.(*MemoryOperand)
return isM512(v) || (r && x.isBroadcast(8, 8))
}
func isVMX(v interface{}) bool {
x, r := v.(*MemoryOperand)
return r && x.isVMX(false) && !x.Masked
}
func isEVEXVMX(v interface{}) bool {
x, r := v.(*MemoryOperand)
return r && x.isVMX(true) && !x.Masked
}
func isVMXk(v interface{}) bool { x, r := v.(*MemoryOperand); return r && x.isVMX(true) }
func isVMY(v interface{}) bool {
x, r := v.(*MemoryOperand)
return r && x.isVMY(false) && !x.Masked
}
func isEVEXVMY(v interface{}) bool {
x, r := v.(*MemoryOperand)
return r && x.isVMY(true) && !x.Masked
}
func isVMYk(v interface{}) bool { x, r := v.(*MemoryOperand); return r && x.isVMY(true) }
func isVMZ(v interface{}) bool {
x, r := v.(*MemoryOperand)
return r && x.isVMZ() && !x.Masked
}
func isVMZk(v interface{}) bool { x, r := v.(*MemoryOperand); return r && x.isVMZ() }
func isSAE(v interface{}) bool { _, r := v.(ExceptionControl); return r }
func isER(v interface{}) bool { _, r := v.(RoundingControl); return r }
func isImmExt(v interface{}, ext int, min int64, max int64) bool {
if x, ok := asInt64(v); !ok {
return false
} else if m := int64(1) << (8 * ext); x < m && x >= m+min {
return true
} else {
return x <= max && x >= min
}
}
func isImm8Ext(v interface{}, ext int) bool {
return isImmExt(v, ext, math.MinInt8, math.MaxInt8)
}
func isImm32Ext(v interface{}, ext int) bool {
return isImmExt(v, ext, math.MinInt32, math.MaxInt32)
}

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//
// Copyright 2024 CloudWeGo Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
package x86_64
// CreateLabel creates a new Label, it may allocate a new one or grab one from a pool.
func CreateLabel(name string) *Label {
p := new(Label)
/* initialize the label */
p.refs = 1
p.Name = name
return p
}
func newProgram(arch *Arch) *Program {
p := new(Program)
/* initialize the program */
p.arch = arch
return p
}
func newInstruction(name string, argc int, argv Operands) *Instruction {
p := new(Instruction)
/* initialize the instruction */
p.name = name
p.argc = argc
p.argv = argv
return p
}
// CreateMemoryOperand creates a new MemoryOperand, it may allocate a new one or grab one from a pool.
func CreateMemoryOperand() *MemoryOperand {
p := new(MemoryOperand)
/* initialize the memory operand */
p.refs = 1
return p
}

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//
// Copyright 2024 CloudWeGo Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
package x86_64
import (
"fmt"
"math"
"math/bits"
"github.com/cloudwego/iasm/expr"
)
type (
_PseudoType int
_InstructionEncoder func(*Program, ...interface{}) *Instruction
)
const (
_PseudoNop _PseudoType = iota + 1
_PseudoByte
_PseudoWord
_PseudoLong
_PseudoQuad
_PseudoData
_PseudoAlign
)
func (self _PseudoType) String() string {
switch self {
case _PseudoNop:
return ".nop"
case _PseudoByte:
return ".byte"
case _PseudoWord:
return ".word"
case _PseudoLong:
return ".long"
case _PseudoQuad:
return ".quad"
case _PseudoData:
return ".data"
case _PseudoAlign:
return ".align"
default:
panic("unreachable")
}
}
type _Pseudo struct {
kind _PseudoType
data []byte
uint uint64
expr *expr.Expr
}
func (self *_Pseudo) free() {
if self.expr != nil {
self.expr.Free()
}
}
func (self *_Pseudo) encode(m *[]byte, pc uintptr) int {
switch self.kind {
case _PseudoNop:
return 0
case _PseudoByte:
self.encodeByte(m)
return 1
case _PseudoWord:
self.encodeWord(m)
return 2
case _PseudoLong:
self.encodeLong(m)
return 4
case _PseudoQuad:
self.encodeQuad(m)
return 8
case _PseudoData:
self.encodeData(m)
return len(self.data)
case _PseudoAlign:
self.encodeAlign(m, pc)
return self.alignSize(pc)
default:
panic("invalid pseudo instruction")
}
}
func (self *_Pseudo) evalExpr(low int64, high int64) int64 {
if v, err := self.expr.Evaluate(); err != nil {
panic(err)
} else if v < low || v > high {
panic(fmt.Sprintf("expression out of range [%d, %d]: %d", low, high, v))
} else {
return v
}
}
func (self *_Pseudo) alignSize(pc uintptr) int {
if !ispow2(self.uint) {
panic(fmt.Sprintf("aligment should be a power of 2, not %d", self.uint))
} else {
return align(int(pc), bits.TrailingZeros64(self.uint)) - int(pc)
}
}
func (self *_Pseudo) encodeData(m *[]byte) {
if m != nil {
*m = append(*m, self.data...)
}
}
func (self *_Pseudo) encodeByte(m *[]byte) {
if m != nil {
append8(m, byte(self.evalExpr(math.MinInt8, math.MaxUint8)))
}
}
func (self *_Pseudo) encodeWord(m *[]byte) {
if m != nil {
append16(m, uint16(self.evalExpr(math.MinInt16, math.MaxUint16)))
}
}
func (self *_Pseudo) encodeLong(m *[]byte) {
if m != nil {
append32(m, uint32(self.evalExpr(math.MinInt32, math.MaxUint32)))
}
}
func (self *_Pseudo) encodeQuad(m *[]byte) {
if m != nil {
if v, err := self.expr.Evaluate(); err != nil {
panic(err)
} else {
append64(m, uint64(v))
}
}
}
func (self *_Pseudo) encodeAlign(m *[]byte, pc uintptr) {
if m != nil {
if self.expr == nil {
expandmm(m, self.alignSize(pc), 0)
} else {
expandmm(m, self.alignSize(pc), byte(self.evalExpr(math.MinInt8, math.MaxUint8)))
}
}
}
// Operands represents a sequence of operand required by an instruction.
type Operands [_N_args]interface{}
// InstructionDomain represents the domain of an instruction.
type InstructionDomain uint8
const (
DomainGeneric InstructionDomain = iota
DomainMMXSSE
DomainAVX
DomainFMA
DomainCrypto
DomainMask
DomainAMDSpecific
DomainMisc
DomainPseudo
)
type (
_BranchType uint8
)
const (
_B_none _BranchType = iota
_B_conditional
_B_unconditional
)
// Instruction represents an unencoded instruction.
type Instruction struct {
next *Instruction
pc uintptr
nb int
len int
argc int
name string
argv Operands
forms [_N_forms]_Encoding
pseudo _Pseudo
branch _BranchType
domain InstructionDomain
prefix []byte
}
func (self *Instruction) add(flags int, encoder func(m *_Encoding, v []interface{})) {
self.forms[self.len].flags = flags
self.forms[self.len].encoder = encoder
self.len++
}
func (self *Instruction) free() {
self.clear()
self.pseudo.free()
//freeInstruction(self)
}
func (self *Instruction) clear() {
for i := 0; i < self.argc; i++ {
if v, ok := self.argv[i].(Disposable); ok {
v.Free()
}
}
}
func (self *Instruction) check(e *_Encoding) bool {
if (e.flags & _F_rel1) != 0 {
return isRel8(self.argv[0])
} else if (e.flags & _F_rel4) != 0 {
return isRel32(self.argv[0]) || isLabel(self.argv[0])
} else {
return true
}
}
func (self *Instruction) encode(m *[]byte) int {
n := math.MaxInt64
p := (*_Encoding)(nil)
/* encode prefixes if any */
if self.nb = len(self.prefix); m != nil {
*m = append(*m, self.prefix...)
}
/* check for pseudo-instructions */
if self.pseudo.kind != 0 {
self.nb += self.pseudo.encode(m, self.pc)
return self.nb
}
/* find the shortest encoding */
for i := 0; i < self.len; i++ {
if e := &self.forms[i]; self.check(e) {
if v := e.encode(self.argv[:self.argc]); v < n {
n = v
p = e
}
}
}
/* add to buffer if needed */
if m != nil {
*m = append(*m, p.bytes[:n]...)
}
/* update the instruction length */
self.nb += n
return self.nb
}
/** Instruction Prefixes **/
const (
_P_cs = 0x2e
_P_ds = 0x3e
_P_es = 0x26
_P_fs = 0x64
_P_gs = 0x65
_P_ss = 0x36
_P_lock = 0xf0
)
// CS overrides the memory operation of this instruction to CS.
func (self *Instruction) CS() *Instruction {
self.prefix = append(self.prefix, _P_cs)
return self
}
// DS overrides the memory operation of this instruction to DS,
// this is the default section for most instructions if not specified.
func (self *Instruction) DS() *Instruction {
self.prefix = append(self.prefix, _P_ds)
return self
}
// ES overrides the memory operation of this instruction to ES.
func (self *Instruction) ES() *Instruction {
self.prefix = append(self.prefix, _P_es)
return self
}
// FS overrides the memory operation of this instruction to FS.
func (self *Instruction) FS() *Instruction {
self.prefix = append(self.prefix, _P_fs)
return self
}
// GS overrides the memory operation of this instruction to GS.
func (self *Instruction) GS() *Instruction {
self.prefix = append(self.prefix, _P_gs)
return self
}
// SS overrides the memory operation of this instruction to SS.
func (self *Instruction) SS() *Instruction {
self.prefix = append(self.prefix, _P_ss)
return self
}
// LOCK causes the processor's LOCK# signal to be asserted during execution of
// the accompanying instruction (turns the instruction into an atomic instruction).
// In a multiprocessor environment, the LOCK# signal insures that the processor
// has exclusive use of any shared memory while the signal is asserted.
func (self *Instruction) LOCK() *Instruction {
self.prefix = append(self.prefix, _P_lock)
return self
}
/** Basic Instruction Properties **/
// Name returns the instruction name.
func (self *Instruction) Name() string {
return self.name
}
// Domain returns the domain of this instruction.
func (self *Instruction) Domain() InstructionDomain {
return self.domain
}
// Operands returns the operands of this instruction.
func (self *Instruction) Operands() []interface{} {
return self.argv[:self.argc]
}
// Program represents a sequence of instructions.
type Program struct {
arch *Arch
head *Instruction
tail *Instruction
}
const (
_N_near = 2 // near-branch (-128 ~ +127) takes 2 bytes to encode
_N_far_cond = 6 // conditional far-branch takes 6 bytes to encode
_N_far_uncond = 5 // unconditional far-branch takes 5 bytes to encode
)
func (self *Program) clear() {
for p, q := self.head, self.head; p != nil; p = q {
q = p.next
p.free()
}
}
func (self *Program) alloc(name string, argc int, argv Operands) *Instruction {
p := self.tail
q := newInstruction(name, argc, argv)
/* attach to tail if any */
if p != nil {
p.next = q
} else {
self.head = q
}
/* set the new tail */
self.tail = q
return q
}
func (self *Program) pseudo(kind _PseudoType) (p *Instruction) {
p = self.alloc(kind.String(), 0, Operands{})
p.domain = DomainPseudo
p.pseudo.kind = kind
return
}
func (self *Program) require(isa ISA) {
if !self.arch.HasISA(isa) {
panic("ISA '" + isa.String() + "' was not enabled")
}
}
func (self *Program) branchSize(p *Instruction) int {
switch p.branch {
case _B_none:
panic("p is not a branch")
case _B_conditional:
return _N_far_cond
case _B_unconditional:
return _N_far_uncond
default:
panic("invalid instruction")
}
}
/** Pseudo-Instructions **/
// Byte is a pseudo-instruction to add raw byte to the assembled code.
func (self *Program) Byte(v *expr.Expr) (p *Instruction) {
p = self.pseudo(_PseudoByte)
p.pseudo.expr = v
return
}
// Word is a pseudo-instruction to add raw uint16 as little-endian to the assembled code.
func (self *Program) Word(v *expr.Expr) (p *Instruction) {
p = self.pseudo(_PseudoWord)
p.pseudo.expr = v
return
}
// Long is a pseudo-instruction to add raw uint32 as little-endian to the assembled code.
func (self *Program) Long(v *expr.Expr) (p *Instruction) {
p = self.pseudo(_PseudoLong)
p.pseudo.expr = v
return
}
// Quad is a pseudo-instruction to add raw uint64 as little-endian to the assembled code.
func (self *Program) Quad(v *expr.Expr) (p *Instruction) {
p = self.pseudo(_PseudoQuad)
p.pseudo.expr = v
return
}
// Data is a pseudo-instruction to add raw bytes to the assembled code.
func (self *Program) Data(v []byte) (p *Instruction) {
p = self.pseudo(_PseudoData)
p.pseudo.data = v
return
}
// Align is a pseudo-instruction to ensure the PC is aligned to a certain value.
func (self *Program) Align(align uint64, padding *expr.Expr) (p *Instruction) {
p = self.pseudo(_PseudoAlign)
p.pseudo.uint = align
p.pseudo.expr = padding
return
}
/** Program Assembler **/
// Free returns the Program object into pool.
// Any operation performed after Free is undefined behavior.
//
// NOTE: This also frees all the instructions, labels, memory
//
// operands and expressions associated with this program.
func (self *Program) Free() {
self.clear()
//freeProgram(self)
}
// Link pins a label at the current position.
func (self *Program) Link(p *Label) {
if p.Dest != nil {
panic("lable was alreay linked")
} else {
p.Dest = self.pseudo(_PseudoNop)
}
}
// Assemble assembles and links the entire program into machine code.
func (self *Program) Assemble(pc uintptr) (ret []byte) {
orig := pc
next := true
offs := uintptr(0)
/* Pass 0: PC-precompute, assume all labeled branches are far-branches. */
for p := self.head; p != nil; p = p.next {
if p.pc = pc; !isLabel(p.argv[0]) || p.branch == _B_none {
pc += uintptr(p.encode(nil))
} else {
pc += uintptr(self.branchSize(p))
}
}
/* allocate space for the machine code */
nb := int(pc - orig)
ret = make([]byte, 0, nb)
/* Pass 1: adjust all the jumps */
for next {
next = false
offs = uintptr(0)
/* scan all the branches */
for p := self.head; p != nil; p = p.next {
var ok bool
var lb *Label
/* re-calculate the alignment here */
if nb = p.nb; p.pseudo.kind == _PseudoAlign {
p.pc -= offs
offs += uintptr(nb - p.encode(nil))
continue
}
/* adjust the program counter */
p.pc -= offs
lb, ok = p.argv[0].(*Label)
/* only care about labeled far-branches */
if !ok || p.nb == _N_near || p.branch == _B_none {
continue
}
/* calculate the jump offset */
size := self.branchSize(p)
diff := lb.offset(p.pc, size)
/* too far to be a near jump */
if diff > 127 || diff < -128 {
p.nb = size
continue
}
/* a far jump becomes a near jump, calculate
* the PC adjustment value and assemble again */
next = true
p.nb = _N_near
offs += uintptr(size - _N_near)
}
}
/* Pass 3: link all the cross-references */
for p := self.head; p != nil; p = p.next {
for i := 0; i < p.argc; i++ {
var ok bool
var lb *Label
var op *MemoryOperand
/* resolve labels */
if lb, ok = p.argv[i].(*Label); ok {
p.argv[i] = lb.offset(p.pc, p.nb)
continue
}
/* check for memory operands */
if op, ok = p.argv[i].(*MemoryOperand); !ok {
continue
}
/* check for label references */
if op.Addr.Type != Reference {
continue
}
/* replace the label with the real offset */
op.Addr.Type = Offset
op.Addr.Offset = op.Addr.Reference.offset(p.pc, p.nb)
}
}
/* Pass 4: actually encode all the instructions */
for p := self.head; p != nil; p = p.next {
p.encode(&ret)
}
/* all done */
return ret
}
// AssembleAndFree is like Assemble, but it frees the Program after assembling.
func (self *Program) AssembleAndFree(pc uintptr) (ret []byte) {
ret = self.Assemble(pc)
self.Free()
return
}

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vendor/github.com/cloudwego/iasm/x86_64/registers.go generated vendored Normal file
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@ -0,0 +1,693 @@
//
// Copyright 2024 CloudWeGo Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
package x86_64
import (
`fmt`
)
// Register represents a hardware register.
type Register interface {
fmt.Stringer
implRegister()
}
type (
Register8 byte
Register16 byte
Register32 byte
Register64 byte
)
type (
KRegister byte
MMRegister byte
XMMRegister byte
YMMRegister byte
ZMMRegister byte
)
// RegisterMask is a KRegister used to mask another register.
type RegisterMask struct {
Z bool
K KRegister
}
// String implements the fmt.Stringer interface.
func (self RegisterMask) String() string {
if !self.Z {
return fmt.Sprintf("{%%%s}", self.K)
} else {
return fmt.Sprintf("{%%%s}{z}", self.K)
}
}
// MaskedRegister is a Register masked by a RegisterMask.
type MaskedRegister struct {
Reg Register
Mask RegisterMask
}
// String implements the fmt.Stringer interface.
func (self MaskedRegister) String() string {
return self.Reg.String() + self.Mask.String()
}
const (
AL Register8 = iota
CL
DL
BL
SPL
BPL
SIL
DIL
R8b
R9b
R10b
R11b
R12b
R13b
R14b
R15b
)
const (
AH = SPL | 0x80
CH = BPL | 0x80
DH = SIL | 0x80
BH = DIL | 0x80
)
const (
AX Register16 = iota
CX
DX
BX
SP
BP
SI
DI
R8w
R9w
R10w
R11w
R12w
R13w
R14w
R15w
)
const (
EAX Register32 = iota
ECX
EDX
EBX
ESP
EBP
ESI
EDI
R8d
R9d
R10d
R11d
R12d
R13d
R14d
R15d
)
const (
RAX Register64 = iota
RCX
RDX
RBX
RSP
RBP
RSI
RDI
R8
R9
R10
R11
R12
R13
R14
R15
)
const (
K0 KRegister = iota
K1
K2
K3
K4
K5
K6
K7
)
const (
MM0 MMRegister = iota
MM1
MM2
MM3
MM4
MM5
MM6
MM7
)
const (
XMM0 XMMRegister = iota
XMM1
XMM2
XMM3
XMM4
XMM5
XMM6
XMM7
XMM8
XMM9
XMM10
XMM11
XMM12
XMM13
XMM14
XMM15
XMM16
XMM17
XMM18
XMM19
XMM20
XMM21
XMM22
XMM23
XMM24
XMM25
XMM26
XMM27
XMM28
XMM29
XMM30
XMM31
)
const (
YMM0 YMMRegister = iota
YMM1
YMM2
YMM3
YMM4
YMM5
YMM6
YMM7
YMM8
YMM9
YMM10
YMM11
YMM12
YMM13
YMM14
YMM15
YMM16
YMM17
YMM18
YMM19
YMM20
YMM21
YMM22
YMM23
YMM24
YMM25
YMM26
YMM27
YMM28
YMM29
YMM30
YMM31
)
const (
ZMM0 ZMMRegister = iota
ZMM1
ZMM2
ZMM3
ZMM4
ZMM5
ZMM6
ZMM7
ZMM8
ZMM9
ZMM10
ZMM11
ZMM12
ZMM13
ZMM14
ZMM15
ZMM16
ZMM17
ZMM18
ZMM19
ZMM20
ZMM21
ZMM22
ZMM23
ZMM24
ZMM25
ZMM26
ZMM27
ZMM28
ZMM29
ZMM30
ZMM31
)
func (self Register8) implRegister() {}
func (self Register16) implRegister() {}
func (self Register32) implRegister() {}
func (self Register64) implRegister() {}
func (self KRegister) implRegister() {}
func (self MMRegister) implRegister() {}
func (self XMMRegister) implRegister() {}
func (self YMMRegister) implRegister() {}
func (self ZMMRegister) implRegister() {}
func (self Register8) String() string { if int(self) >= len(r8names) { return "???" } else { return r8names[self] } }
func (self Register16) String() string { if int(self) >= len(r16names) { return "???" } else { return r16names[self] } }
func (self Register32) String() string { if int(self) >= len(r32names) { return "???" } else { return r32names[self] } }
func (self Register64) String() string { if int(self) >= len(r64names) { return "???" } else { return r64names[self] } }
func (self KRegister) String() string { if int(self) >= len(knames) { return "???" } else { return knames[self] } }
func (self MMRegister) String() string { if int(self) >= len(mmnames) { return "???" } else { return mmnames[self] } }
func (self XMMRegister) String() string { if int(self) >= len(xmmnames) { return "???" } else { return xmmnames[self] } }
func (self YMMRegister) String() string { if int(self) >= len(ymmnames) { return "???" } else { return ymmnames[self] } }
func (self ZMMRegister) String() string { if int(self) >= len(zmmnames) { return "???" } else { return zmmnames[self] } }
// Registers maps register name into Register instances.
var Registers = map[string]Register {
"al" : AL,
"cl" : CL,
"dl" : DL,
"bl" : BL,
"spl" : SPL,
"bpl" : BPL,
"sil" : SIL,
"dil" : DIL,
"r8b" : R8b,
"r9b" : R9b,
"r10b" : R10b,
"r11b" : R11b,
"r12b" : R12b,
"r13b" : R13b,
"r14b" : R14b,
"r15b" : R15b,
"ah" : AH,
"ch" : CH,
"dh" : DH,
"bh" : BH,
"ax" : AX,
"cx" : CX,
"dx" : DX,
"bx" : BX,
"sp" : SP,
"bp" : BP,
"si" : SI,
"di" : DI,
"r8w" : R8w,
"r9w" : R9w,
"r10w" : R10w,
"r11w" : R11w,
"r12w" : R12w,
"r13w" : R13w,
"r14w" : R14w,
"r15w" : R15w,
"eax" : EAX,
"ecx" : ECX,
"edx" : EDX,
"ebx" : EBX,
"esp" : ESP,
"ebp" : EBP,
"esi" : ESI,
"edi" : EDI,
"r8d" : R8d,
"r9d" : R9d,
"r10d" : R10d,
"r11d" : R11d,
"r12d" : R12d,
"r13d" : R13d,
"r14d" : R14d,
"r15d" : R15d,
"rax" : RAX,
"rcx" : RCX,
"rdx" : RDX,
"rbx" : RBX,
"rsp" : RSP,
"rbp" : RBP,
"rsi" : RSI,
"rdi" : RDI,
"r8" : R8,
"r9" : R9,
"r10" : R10,
"r11" : R11,
"r12" : R12,
"r13" : R13,
"r14" : R14,
"r15" : R15,
"k0" : K0,
"k1" : K1,
"k2" : K2,
"k3" : K3,
"k4" : K4,
"k5" : K5,
"k6" : K6,
"k7" : K7,
"mm0" : MM0,
"mm1" : MM1,
"mm2" : MM2,
"mm3" : MM3,
"mm4" : MM4,
"mm5" : MM5,
"mm6" : MM6,
"mm7" : MM7,
"xmm0" : XMM0,
"xmm1" : XMM1,
"xmm2" : XMM2,
"xmm3" : XMM3,
"xmm4" : XMM4,
"xmm5" : XMM5,
"xmm6" : XMM6,
"xmm7" : XMM7,
"xmm8" : XMM8,
"xmm9" : XMM9,
"xmm10" : XMM10,
"xmm11" : XMM11,
"xmm12" : XMM12,
"xmm13" : XMM13,
"xmm14" : XMM14,
"xmm15" : XMM15,
"xmm16" : XMM16,
"xmm17" : XMM17,
"xmm18" : XMM18,
"xmm19" : XMM19,
"xmm20" : XMM20,
"xmm21" : XMM21,
"xmm22" : XMM22,
"xmm23" : XMM23,
"xmm24" : XMM24,
"xmm25" : XMM25,
"xmm26" : XMM26,
"xmm27" : XMM27,
"xmm28" : XMM28,
"xmm29" : XMM29,
"xmm30" : XMM30,
"xmm31" : XMM31,
"ymm0" : YMM0,
"ymm1" : YMM1,
"ymm2" : YMM2,
"ymm3" : YMM3,
"ymm4" : YMM4,
"ymm5" : YMM5,
"ymm6" : YMM6,
"ymm7" : YMM7,
"ymm8" : YMM8,
"ymm9" : YMM9,
"ymm10" : YMM10,
"ymm11" : YMM11,
"ymm12" : YMM12,
"ymm13" : YMM13,
"ymm14" : YMM14,
"ymm15" : YMM15,
"ymm16" : YMM16,
"ymm17" : YMM17,
"ymm18" : YMM18,
"ymm19" : YMM19,
"ymm20" : YMM20,
"ymm21" : YMM21,
"ymm22" : YMM22,
"ymm23" : YMM23,
"ymm24" : YMM24,
"ymm25" : YMM25,
"ymm26" : YMM26,
"ymm27" : YMM27,
"ymm28" : YMM28,
"ymm29" : YMM29,
"ymm30" : YMM30,
"ymm31" : YMM31,
"zmm0" : ZMM0,
"zmm1" : ZMM1,
"zmm2" : ZMM2,
"zmm3" : ZMM3,
"zmm4" : ZMM4,
"zmm5" : ZMM5,
"zmm6" : ZMM6,
"zmm7" : ZMM7,
"zmm8" : ZMM8,
"zmm9" : ZMM9,
"zmm10" : ZMM10,
"zmm11" : ZMM11,
"zmm12" : ZMM12,
"zmm13" : ZMM13,
"zmm14" : ZMM14,
"zmm15" : ZMM15,
"zmm16" : ZMM16,
"zmm17" : ZMM17,
"zmm18" : ZMM18,
"zmm19" : ZMM19,
"zmm20" : ZMM20,
"zmm21" : ZMM21,
"zmm22" : ZMM22,
"zmm23" : ZMM23,
"zmm24" : ZMM24,
"zmm25" : ZMM25,
"zmm26" : ZMM26,
"zmm27" : ZMM27,
"zmm28" : ZMM28,
"zmm29" : ZMM29,
"zmm30" : ZMM30,
"zmm31" : ZMM31,
}
/** Register Name Tables **/
var r8names = [...]string {
AL : "al",
CL : "cl",
DL : "dl",
BL : "bl",
SPL : "spl",
BPL : "bpl",
SIL : "sil",
DIL : "dil",
R8b : "r8b",
R9b : "r9b",
R10b : "r10b",
R11b : "r11b",
R12b : "r12b",
R13b : "r13b",
R14b : "r14b",
R15b : "r15b",
AH : "ah",
CH : "ch",
DH : "dh",
BH : "bh",
}
var r16names = [...]string {
AX : "ax",
CX : "cx",
DX : "dx",
BX : "bx",
SP : "sp",
BP : "bp",
SI : "si",
DI : "di",
R8w : "r8w",
R9w : "r9w",
R10w : "r10w",
R11w : "r11w",
R12w : "r12w",
R13w : "r13w",
R14w : "r14w",
R15w : "r15w",
}
var r32names = [...]string {
EAX : "eax",
ECX : "ecx",
EDX : "edx",
EBX : "ebx",
ESP : "esp",
EBP : "ebp",
ESI : "esi",
EDI : "edi",
R8d : "r8d",
R9d : "r9d",
R10d : "r10d",
R11d : "r11d",
R12d : "r12d",
R13d : "r13d",
R14d : "r14d",
R15d : "r15d",
}
var r64names = [...]string {
RAX : "rax",
RCX : "rcx",
RDX : "rdx",
RBX : "rbx",
RSP : "rsp",
RBP : "rbp",
RSI : "rsi",
RDI : "rdi",
R8 : "r8",
R9 : "r9",
R10 : "r10",
R11 : "r11",
R12 : "r12",
R13 : "r13",
R14 : "r14",
R15 : "r15",
}
var knames = [...]string {
K0: "k0",
K1: "k1",
K2: "k2",
K3: "k3",
K4: "k4",
K5: "k5",
K6: "k6",
K7: "k7",
}
var mmnames = [...]string {
MM0: "mm0",
MM1: "mm1",
MM2: "mm2",
MM3: "mm3",
MM4: "mm4",
MM5: "mm5",
MM6: "mm6",
MM7: "mm7",
}
var xmmnames = [...]string {
XMM0 : "xmm0",
XMM1 : "xmm1",
XMM2 : "xmm2",
XMM3 : "xmm3",
XMM4 : "xmm4",
XMM5 : "xmm5",
XMM6 : "xmm6",
XMM7 : "xmm7",
XMM8 : "xmm8",
XMM9 : "xmm9",
XMM10 : "xmm10",
XMM11 : "xmm11",
XMM12 : "xmm12",
XMM13 : "xmm13",
XMM14 : "xmm14",
XMM15 : "xmm15",
XMM16 : "xmm16",
XMM17 : "xmm17",
XMM18 : "xmm18",
XMM19 : "xmm19",
XMM20 : "xmm20",
XMM21 : "xmm21",
XMM22 : "xmm22",
XMM23 : "xmm23",
XMM24 : "xmm24",
XMM25 : "xmm25",
XMM26 : "xmm26",
XMM27 : "xmm27",
XMM28 : "xmm28",
XMM29 : "xmm29",
XMM30 : "xmm30",
XMM31 : "xmm31",
}
var ymmnames = [...]string {
YMM0 : "ymm0",
YMM1 : "ymm1",
YMM2 : "ymm2",
YMM3 : "ymm3",
YMM4 : "ymm4",
YMM5 : "ymm5",
YMM6 : "ymm6",
YMM7 : "ymm7",
YMM8 : "ymm8",
YMM9 : "ymm9",
YMM10 : "ymm10",
YMM11 : "ymm11",
YMM12 : "ymm12",
YMM13 : "ymm13",
YMM14 : "ymm14",
YMM15 : "ymm15",
YMM16 : "ymm16",
YMM17 : "ymm17",
YMM18 : "ymm18",
YMM19 : "ymm19",
YMM20 : "ymm20",
YMM21 : "ymm21",
YMM22 : "ymm22",
YMM23 : "ymm23",
YMM24 : "ymm24",
YMM25 : "ymm25",
YMM26 : "ymm26",
YMM27 : "ymm27",
YMM28 : "ymm28",
YMM29 : "ymm29",
YMM30 : "ymm30",
YMM31 : "ymm31",
}
var zmmnames = [...]string {
ZMM0 : "zmm0",
ZMM1 : "zmm1",
ZMM2 : "zmm2",
ZMM3 : "zmm3",
ZMM4 : "zmm4",
ZMM5 : "zmm5",
ZMM6 : "zmm6",
ZMM7 : "zmm7",
ZMM8 : "zmm8",
ZMM9 : "zmm9",
ZMM10 : "zmm10",
ZMM11 : "zmm11",
ZMM12 : "zmm12",
ZMM13 : "zmm13",
ZMM14 : "zmm14",
ZMM15 : "zmm15",
ZMM16 : "zmm16",
ZMM17 : "zmm17",
ZMM18 : "zmm18",
ZMM19 : "zmm19",
ZMM20 : "zmm20",
ZMM21 : "zmm21",
ZMM22 : "zmm22",
ZMM23 : "zmm23",
ZMM24 : "zmm24",
ZMM25 : "zmm25",
ZMM26 : "zmm26",
ZMM27 : "zmm27",
ZMM28 : "zmm28",
ZMM29 : "zmm29",
ZMM30 : "zmm30",
ZMM31 : "zmm31",
}

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@ -0,0 +1,147 @@
//
// Copyright 2024 CloudWeGo Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
package x86_64
import (
`encoding/binary`
`errors`
`reflect`
`strconv`
`unicode/utf8`
`unsafe`
)
const (
_CC_digit = 1 << iota
_CC_ident
_CC_ident0
_CC_number
)
func ispow2(v uint64) bool {
return (v & (v - 1)) == 0
}
func isdigit(cc rune) bool {
return '0' <= cc && cc <= '9'
}
func isalpha(cc rune) bool {
return (cc >= 'a' && cc <= 'z') || (cc >= 'A' && cc <= 'Z')
}
func isident(cc rune) bool {
return cc == '_' || isalpha(cc) || isdigit(cc)
}
func isident0(cc rune) bool {
return cc == '_' || isalpha(cc)
}
func isnumber(cc rune) bool {
return (cc == 'b' || cc == 'B') ||
(cc == 'o' || cc == 'O') ||
(cc == 'x' || cc == 'X') ||
(cc >= '0' && cc <= '9') ||
(cc >= 'a' && cc <= 'f') ||
(cc >= 'A' && cc <= 'F')
}
func align(v int, n int) int {
return (((v - 1) >> n) + 1) << n
}
func append8(m *[]byte, v byte) {
*m = append(*m, v)
}
func append16(m *[]byte, v uint16) {
p := len(*m)
*m = append(*m, 0, 0)
binary.LittleEndian.PutUint16((*m)[p:], v)
}
func append32(m *[]byte, v uint32) {
p := len(*m)
*m = append(*m, 0, 0, 0, 0)
binary.LittleEndian.PutUint32((*m)[p:], v)
}
func append64(m *[]byte, v uint64) {
p := len(*m)
*m = append(*m, 0, 0, 0, 0, 0, 0, 0, 0)
binary.LittleEndian.PutUint64((*m)[p:], v)
}
func expandmm(m *[]byte, n int, v byte) {
sl := (*_GoSlice)(unsafe.Pointer(m))
nb := sl.len + n
/* grow as needed */
if nb > cap(*m) {
*m = growslice(byteType, *m, nb)
}
/* fill the new area */
memset(unsafe.Pointer(uintptr(sl.ptr) + uintptr(sl.len)), v, uintptr(n))
sl.len = nb
}
func memset(p unsafe.Pointer, c byte, n uintptr) {
if c != 0 {
memsetv(p, c, n)
} else {
memclrNoHeapPointers(p, n)
}
}
func memsetv(p unsafe.Pointer, c byte, n uintptr) {
for i := uintptr(0); i < n; i++ {
*(*byte)(unsafe.Pointer(uintptr(p) + i)) = c
}
}
func literal64(v string) (uint64, error) {
var nb int
var ch rune
var ex error
var mm [12]byte
/* unquote the runes */
for v != "" {
if ch, _, v, ex = strconv.UnquoteChar(v, '\''); ex != nil {
return 0, ex
} else if nb += utf8.EncodeRune(mm[nb:], ch); nb > 8 {
return 0, errors.New("multi-char constant too large")
}
}
/* convert to uint64 */
return *(*uint64)(unsafe.Pointer(&mm)), nil
}
var (
byteWrap = reflect.TypeOf(byte(0))
byteType = (*_GoType)(efaceOf(byteWrap).ptr)
)
//go:linkname growslice runtime.growslice
func growslice(_ *_GoType, _ []byte, _ int) []byte
//go:noescape
//go:linkname memclrNoHeapPointers runtime.memclrNoHeapPointers
func memclrNoHeapPointers(_ unsafe.Pointer, _ uintptr)