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Golang LSym.Locals方法代码示例

本文整理汇总了Golang中rsc/io/tmp/slowgc/liblink.LSym.Locals方法的典型用法代码示例。如果您正苦于以下问题：Golang LSym.Locals方法的具体用法？Golang LSym.Locals怎么用？Golang LSym.Locals使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类rsc/io/tmp/slowgc/liblink.LSym的用法示例。


在下文中一共展示了LSym.Locals方法的4个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Golang代码示例。

示例1: readsym

func readsym(b *bufio.Reader, s *liblink.LSym) {
	if !undef[s] {
		panic("double-def")
	}
	delete(undef, s)
	s.Name = rdstring(b)
	s.Extname = rdstring(b)
	s.Type_ = int16(rdint(b))
	s.Version = int16(rdint(b))
	s.Dupok = uint8(rdint(b))
	s.External = uint8(rdint(b))
	s.Nosplit = uint8(rdint(b))
	s.Reachable = uint8(rdint(b))
	s.Cgoexport = uint8(rdint(b))
	s.Special = uint8(rdint(b))
	s.Stkcheck = uint8(rdint(b))
	s.Hide = uint8(rdint(b))
	s.Leaf = uint8(rdint(b))
	s.Fnptr = uint8(rdint(b))
	s.Seenglobl = uint8(rdint(b))
	s.Onlist = uint8(rdint(b))
	s.Symid = int16(rdint(b))
	s.Dynid = int32(rdint(b))
	s.Sig = int32(rdint(b))
	s.Plt = int32(rdint(b))
	s.Got = int32(rdint(b))
	s.Align = int32(rdint(b))
	s.Elfsym = int32(rdint(b))
	s.Args = int32(rdint(b))
	s.Locals = int32(rdint(b))
	s.Value = rdint(b)
	s.Size = rdint(b)
	hashed[rdsym(b)] = true
	s.Allsym = rdsym(b)
	s.Next = rdsym(b)
	s.Sub = rdsym(b)
	s.Outer = rdsym(b)
	s.Gotype = rdsym(b)
	s.Reachparent = rdsym(b)
	s.Queue = rdsym(b)
	s.File = rdstring(b)
	s.Dynimplib = rdstring(b)
	s.Dynimpvers = rdstring(b)
	s.Text = rdprog(b)
	s.Etext = rdprog(b)
	n := int(rdint(b))
	if n > 0 {
		s.P = make([]byte, n)
		io.ReadFull(b, s.P)
	}
	s.R = make([]liblink.Reloc, int(rdint(b)))
	for i := range s.R {
		r := &s.R[i]
		r.Off = int32(rdint(b))
		r.Siz = uint8(rdint(b))
		r.Done = uint8(rdint(b))
		r.Type_ = int32(rdint(b))
		r.Add = rdint(b)
		r.Xadd = rdint(b)
		r.Sym = rdsym(b)
		r.Xsym = rdsym(b)
	}
}
开发者ID:rsc，项目名称:tmp，代码行数:63，代码来源:main.go

示例2: addstacksplit

func addstacksplit(ctxt *liblink.Link, cursym *liblink.LSym) {
	var p *liblink.Prog
	var q *liblink.Prog
	var p1 *liblink.Prog
	var p2 *liblink.Prog
	var q1 *liblink.Prog
	var o int
	var mov int
	var aoffset int
	var textstksiz int64
	var textarg int64
	var autosize int32

	if ctxt.Symmorestack[0] == nil {
		ctxt.Symmorestack[0] = liblink.Linklookup(ctxt, "runtime.morestack", 0)
		ctxt.Symmorestack[1] = liblink.Linklookup(ctxt, "runtime.morestack_noctxt", 0)
	}

	// TODO(minux): add morestack short-cuts with small fixed frame-size.
	ctxt.Cursym = cursym

	if cursym.Text == nil || cursym.Text.Link == nil {
		return
	}

	p = cursym.Text
	parsetextconst(p.To.Offset, &textstksiz, &textarg)

	cursym.Args = int32(p.To.Offset >> 32)
	cursym.Locals = int32(textstksiz)

	/*
	 * find leaf subroutines
	 * strip NOPs
	 * expand RET
	 * expand BECOME pseudo
	 */
	if ctxt.Debugvlog != 0 {

		fmt.Fprintf(ctxt.Bso, "%5.2f noops\n", liblink.Cputime())
	}
	liblink.Bflush(ctxt.Bso)

	q = nil
	for p = cursym.Text; p != nil; p = p.Link {
		switch p.As {
		/* too hard, just leave alone */
		case ATEXT:
			q = p

			p.Mark |= LABEL | LEAF | SYNC
			if p.Link != nil {
				p.Link.Mark |= LABEL
			}

		case ANOR:
			q = p
			if p.To.Type_ == D_REG {
				if p.To.Reg == REGZERO {
					p.Mark |= LABEL | SYNC
				}
			}

		case ALWAR,
			ASTWCCC,
			AECIWX,
			AECOWX,
			AEIEIO,
			AICBI,
			AISYNC,
			ATLBIE,
			ATLBIEL,
			ASLBIA,
			ASLBIE,
			ASLBMFEE,
			ASLBMFEV,
			ASLBMTE,
			ADCBF,
			ADCBI,
			ADCBST,
			ADCBT,
			ADCBTST,
			ADCBZ,
			ASYNC,
			ATLBSYNC,
			APTESYNC,
			ATW,
			AWORD,
			ARFI,
			ARFCI,
			ARFID,
			AHRFID:
			q = p
			p.Mark |= LABEL | SYNC
			continue

		case AMOVW,
			AMOVWZ,
			AMOVD:
			q = p
//.........这里部分代码省略.........
开发者ID:rsc，项目名称:tmp，代码行数:101，代码来源:obj9.go

示例3: addstacksplit

func addstacksplit(ctxt *liblink.Link, cursym *liblink.LSym) {
	var p *liblink.Prog
	var pl *liblink.Prog
	var p1 *liblink.Prog
	var p2 *liblink.Prog
	var q *liblink.Prog
	var q1 *liblink.Prog
	var q2 *liblink.Prog
	var o int
	var autosize int32
	var autoffset int32

	autosize = 0

	if ctxt.Symmorestack[0] == nil {
		ctxt.Symmorestack[0] = liblink.Linklookup(ctxt, "runtime.morestack", 0)
		ctxt.Symmorestack[1] = liblink.Linklookup(ctxt, "runtime.morestack_noctxt", 0)
	}

	q = nil

	ctxt.Cursym = cursym

	if cursym.Text == nil || cursym.Text.Link == nil {
		return
	}

	softfloat(ctxt, cursym)

	p = cursym.Text
	autoffset = int32(p.To.Offset)
	if autoffset < 0 {
		autoffset = 0
	}
	cursym.Locals = autoffset
	cursym.Args = p.To.Offset2

	if ctxt.Debugzerostack != 0 {
		if autoffset != 0 && !(p.Reg&liblink.NOSPLIT != 0) {
			// MOVW $4(R13), R1
			p = liblink.Appendp(ctxt, p)

			p.As = AMOVW
			p.From.Type_ = D_CONST
			p.From.Reg = 13
			p.From.Offset = 4
			p.To.Type_ = D_REG
			p.To.Reg = 1

			// MOVW $n(R13), R2
			p = liblink.Appendp(ctxt, p)

			p.As = AMOVW
			p.From.Type_ = D_CONST
			p.From.Reg = 13
			p.From.Offset = 4 + int64(autoffset)
			p.To.Type_ = D_REG
			p.To.Reg = 2

			// MOVW $0, R3
			p = liblink.Appendp(ctxt, p)

			p.As = AMOVW
			p.From.Type_ = D_CONST
			p.From.Offset = 0
			p.To.Type_ = D_REG
			p.To.Reg = 3

			// L:
			//	MOVW.nil R3, 0(R1) +4
			//	CMP R1, R2
			//	BNE L
			pl = liblink.Appendp(ctxt, p)
			p = pl

			p.As = AMOVW
			p.From.Type_ = D_REG
			p.From.Reg = 3
			p.To.Type_ = D_OREG
			p.To.Reg = 1
			p.To.Offset = 4
			p.Scond |= C_PBIT

			p = liblink.Appendp(ctxt, p)
			p.As = ACMP
			p.From.Type_ = D_REG
			p.From.Reg = 1
			p.Reg = 2

			p = liblink.Appendp(ctxt, p)
			p.As = ABNE
			p.To.Type_ = D_BRANCH
			p.Pcond = pl
		}
	}

	/*
	 * find leaf subroutines
	 * strip NOPs
	 * expand RET
//.........这里部分代码省略.........
开发者ID:rsc，项目名称:tmp，代码行数:101，代码来源:obj5.go

示例4: addstacksplit

func addstacksplit(ctxt *liblink.Link, cursym *liblink.LSym) {
	var p *liblink.Prog
	var q *liblink.Prog
	var p1 *liblink.Prog
	var p2 *liblink.Prog
	var autoffset int32
	var deltasp int32
	var a int

	if ctxt.Symmorestack[0] == nil {
		ctxt.Symmorestack[0] = liblink.Linklookup(ctxt, "runtime.morestack", 0)
		ctxt.Symmorestack[1] = liblink.Linklookup(ctxt, "runtime.morestack_noctxt", 0)
	}

	if ctxt.Headtype == liblink.Hplan9 && ctxt.Plan9privates == nil {
		ctxt.Plan9privates = liblink.Linklookup(ctxt, "_privates", 0)
	}

	ctxt.Cursym = cursym

	if cursym.Text == nil || cursym.Text.Link == nil {
		return
	}

	p = cursym.Text
	autoffset = int32(p.To.Offset)
	if autoffset < 0 {
		autoffset = 0
	}

	cursym.Locals = autoffset
	cursym.Args = p.To.Offset2

	q = nil

	if !(p.From.Scale&liblink.NOSPLIT != 0) || (p.From.Scale&liblink.WRAPPER != 0) {
		p = liblink.Appendp(ctxt, p)
		p = load_g_cx(ctxt, p) // load g into CX
	}

	if !(cursym.Text.From.Scale&liblink.NOSPLIT != 0) {
		p = stacksplit(ctxt, p, autoffset, bool2int(!(cursym.Text.From.Scale&liblink.NEEDCTXT != 0)), &q) // emit split check
	}

	if autoffset != 0 {

		p = liblink.Appendp(ctxt, p)
		p.As = AADJSP
		p.From.Type_ = D_CONST
		p.From.Offset = int64(autoffset)
		p.Spadj = autoffset
	} else {

		// zero-byte stack adjustment.
		// Insert a fake non-zero adjustment so that stkcheck can
		// recognize the end of the stack-splitting prolog.
		p = liblink.Appendp(ctxt, p)

		p.As = ANOP
		p.Spadj = int32(-ctxt.Arch.Ptrsize)
		p = liblink.Appendp(ctxt, p)
		p.As = ANOP
		p.Spadj = int32(ctxt.Arch.Ptrsize)
	}

	if q != nil {
		q.Pcond = p
	}
	deltasp = autoffset

	if cursym.Text.From.Scale&liblink.WRAPPER != 0 {
		// if(g->panic != nil && g->panic->argp == FP) g->panic->argp = bottom-of-frame
		//
		//	MOVL g_panic(CX), BX
		//	TESTL BX, BX
		//	JEQ end
		//	LEAL (autoffset+4)(SP), DI
		//	CMPL panic_argp(BX), DI
		//	JNE end
		//	MOVL SP, panic_argp(BX)
		// end:
		//	NOP
		//
		// The NOP is needed to give the jumps somewhere to land.
		// It is a liblink NOP, not an x86 NOP: it encodes to 0 instruction bytes.

		p = liblink.Appendp(ctxt, p)

		p.As = AMOVL
		p.From.Type_ = D_INDIR + D_CX
		p.From.Offset = 4 * int64(ctxt.Arch.Ptrsize) // G.panic
		p.To.Type_ = D_BX

		p = liblink.Appendp(ctxt, p)
		p.As = ATESTL
		p.From.Type_ = D_BX
		p.To.Type_ = D_BX

		p = liblink.Appendp(ctxt, p)
		p.As = AJEQ
//.........这里部分代码省略.........
开发者ID:rsc，项目名称:tmp，代码行数:101，代码来源:obj8.go


注：本文中的rsc/io/tmp/slowgc/liblink.LSym.Locals方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。