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

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>

vendor/github.com/cloudwego/iasm/x86_64/program.go

@@ -0,0 +1,584 @@
+//
+// 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
+}