data []byte     // raw memory for the function
}

// funcData returns the ith funcData in t.functab.
func (t *LineTable) funcData(i uint32) funcData {
	data := t.funcdata[t.funcTab().funcOff(int(i)):]
	return funcData{t: t, data: data}
}

// IsZero reports whether f is the zero value.
func (f funcData) IsZero() bool {
	return f.t == nil && f.data == nil
}

			}
		}

		// Write funcdata refs as offsets from go:func.* and go:funcrel.*.
		funcdata = funcData(ldr, s, fi, inlSyms[s], funcdata)
		// Missing funcdata will be ^0. See runtime/symtab.go:funcdata.
		off = int64(startLocations[i] + funcSize + numPCData(ldr, s, fi)*4)
		for j := range funcdata {
			dataoff := off + int64(4*j)
			fdsym := funcdata[j]

// assembly code without an explicit specification).
// This value is generated by the compiler, assembler, or linker.
const ArgsSizeUnknown = -0x80000000

// IDs for PCDATA and FUNCDATA tables in Go binaries.
//
// These must agree with ../../../runtime/funcdata.h.
const (
	PCDATA_UnsafePoint   = 0
	PCDATA_StackMapIndex = 1
	PCDATA_InlTreeIndex  = 2
	PCDATA_ArgLiveIndex  = 3

	FUNCDATA_ArgsPointerMaps    = 0

	switch goarch.ArchFamily {
	case goarch.ARM64:
		minsize = sys.StackAlign
	default:
		minsize = sys.MinFrameSize
	}
	if size > minsize {
		stackid := pcdata
		stkmap := (*stackmap)(funcdata(f, abi.FUNCDATA_LocalsPointerMaps))
		if stkmap == nil || stkmap.n <= 0 {
			print("runtime: frame ", funcname(f), " untyped locals ", hex(frame.varp-size), "+", hex(size), "\n")
			throw("missing stackmap")
		}

// return the number of aux symbols s have.
func nAuxSym(s *LSym) int {
	n := 0
	if s.Gotype != nil {
		n++
	}
	if fn := s.Func(); fn != nil {
		// FuncInfo is an aux symbol, each Funcdata is an aux symbol
		n += 1 + len(fn.Pcln.Funcdata)
		if fn.dwarfInfoSym != nil && fn.dwarfInfoSym.Size != 0 {
			n++
		}
		if fn.dwarfLocSym != nil && fn.dwarfLocSym.Size != 0 {
			n++
		}

	p.append(prog, "", true)
}

// asmFuncData assembles a FUNCDATA pseudo-op.
// FUNCDATA $1, funcdata<>+4(SB)
func (p *Parser) asmFuncData(operands [][]lex.Token) {
	if len(operands) != 2 {
		p.errorf("expect two operands for FUNCDATA")
		return
	}

	// Operand 0 must be an immediate constant.
	valueAddr := p.address(operands[0])
	if !p.validImmediate("FUNCDATA", &valueAddr) {
		return
	}

// Copyright 2022 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

#include "textflag.h"
#include "funcdata.h"

#define	REGCTXT	R29

// The frames of each of the two functions below contain two locals, at offsets
// that are known to the runtime.
//
// The first local is a bool called retValid with a whole pointer-word reserved

//
// Do not remove or change the type signature.
// See go.dev/issue/67401.
//
//go:linkname newInlineUnwinder
func newInlineUnwinder(f funcInfo, pc uintptr) (inlineUnwinder, inlineFrame) {
	inldata := funcdata(f, abi.FUNCDATA_InlTree)
	if inldata == nil {
		return inlineUnwinder{f: f}, inlineFrame{pc: pc, index: -1}
	}
	inlTree := (*[1 << 20]inlinedCall)(inldata)
	u := inlineUnwinder{f: f, inlTree: inlTree}

// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

#include "go_asm.h"
#include "textflag.h"
#include "funcdata.h"

// bool armcas(int32 *val, int32 old, int32 new)
// Atomically:
//	if(*val == old){
//		*val = new;
//		return 1;
//	}else
//		return 0;
//
// To implement ·cas in sys_$GOOS_arm.s

}

// funcdata returns a pointer to the ith funcdata for f.
// funcdata should be kept in sync with cmd/link:writeFuncs.
func funcdata(f funcInfo, i uint8) unsafe.Pointer {
	if i < 0 || i >= f.nfuncdata {
		return nil
	}
	base := f.datap.gofunc // load gofunc address early so that we calculate during cache misses