//
// Usage:
//
//	go tool addr2line binary
//
// Addr2line reads hexadecimal addresses, one per line and with optional 0x prefix,
// from standard input. For each input address, addr2line prints two output lines,
// first the name of the function containing the address and second the file:line
// of the source code corresponding to that address.
//
// This tool is intended for use only by pprof; its interface may change or

||    conditional OR     p || q  is  "if p then true else q"
!     NOT                !p      is  "not p"
</pre>


<h3 id="Address_operators">Address operators</h3>

<p>
For an operand <code>x</code> of type <code>T</code>, the address operation
<code>&amp;x</code> generates a pointer of type <code>*T</code> to <code>x</code>.
The operand must be <i>addressable</i>,

||    conditional OR     p || q  is  "if p then true else q"
!     NOT                !p      is  "not p"
</pre>


<h3 id="Address_operators">Address operators</h3>

<p>
For an operand <code>x</code> of type <code>T</code>, the address operation
<code>&amp;x</code> generates a pointer of type <code>*T</code> to <code>x</code>.
The operand must be <i>addressable</i>,

</p>

<p>
Addressing modes:
</p>

<ul>

<li>
<code>(DI)(BX*2)</code>: The location at address <code>DI</code> plus <code>BX*2</code>.
</li>

<li>
<code>64(DI)(BX*2)</code>: The location at address <code>DI</code> plus <code>BX*2</code> plus 64.
These modes accept only 1, 2, 4, and 8 as scale factors.
</li>

</ul>

<p>

			fmt.Fprintf(w, "ref %s %s\n", name, abi)
		}
	}
}

func (p *Parser) start(operand []lex.Token) {
	p.input = operand
	p.inputPos = 0
}

// address parses the operand into a link address structure.
func (p *Parser) address(operand []lex.Token) obj.Addr {
	p.start(operand)
	addr := obj.Addr{}
	p.operand(&addr)
	return addr
}

// parseScale converts a decimal string into a valid scale factor.

pkg syscall (freebsd-riscv64), type ICMPv6Filter struct, Filt [8]uint32 #53466
pkg syscall (freebsd-riscv64), type IPMreqn struct #53466
pkg syscall (freebsd-riscv64), type IPMreqn struct, Address [4]uint8 #53466
pkg syscall (freebsd-riscv64), type IPMreqn struct, Ifindex int32 #53466
pkg syscall (freebsd-riscv64), type IPMreqn struct, Multiaddr [4]uint8 #53466

	MOVL (AX)(Y0*1), AX             // ERROR "invalid instruction"
	// VSIB/VM is invalid without vector index.
	// TODO(quasilyte): improve error message (#21860).
	// "invalid VSIB address (missing vector index)"
	VPGATHERQQ Y2, (BP), Y1         // ERROR "invalid instruction"
	// AVX2GATHER mask/index/dest #UD cases.
	VPGATHERQQ Y2, (BP)(X2*2), Y2   // ERROR "mask, index, and destination registers should be distinct"

	if err != nil {
		p.errorf("bad size for DATA argument: %q", szop)
	}
	op = op[:n-2]
	nameAddr := p.address(op)
	if !p.validSymbol("DATA", &nameAddr, true) {
		return
	}
	name := symbolName(&nameAddr)

	// Operand 1 is an immediate constant or address.
	valueAddr := p.address(operands[1])
	switch valueAddr.Type {
	case obj.TYPE_CONST, obj.TYPE_FCONST, obj.TYPE_SCONST, obj.TYPE_ADDR:
		// OK

pkg net/http/cookiejar, type PublicSuffixList interface, String() string
pkg net/http/httptest, const DefaultRemoteAddr = "1.2.3.4"
pkg net/mail, func ParseAddress(string) (*Address, error)
pkg net/mail, func ParseAddressList(string) ([]*Address, error)
pkg net/rpc, const DefaultDebugPath = "/debug/rpc"
pkg net/rpc, const DefaultRPCPath = "/_goRPC_"
pkg net/smtp, method (*Client) Hello(string) error

		case "UXTH":
			if a.Type == obj.TYPE_MEM {
				return errors.New("invalid shift for the register offset addressing mode")
			}
			a.Reg = arm64.REG_UXTH + Rnum
		case "UXTW":
			// effective address of memory is a base register value and an offset register value.
			if a.Type == obj.TYPE_MEM {
				a.Index = arm64.REG_UXTW + Rnum
			} else {
				a.Reg = arm64.REG_UXTW + Rnum
			}
		case "UXTX":