How to use addr method of proggen Package

Best Syzkaller code snippet using proggen.addr

data.go

Source:data.go

...94}95func setuint32(ctxt *Link, s *LSym, r int64, v uint32) int64 {96	return setuintxx(ctxt, s, r, uint64(v), 4)97}98func Addaddrplus(ctxt *Link, s *LSym, t *LSym, add int64) int64 {99	if s.Type == 0 {100		s.Type = SDATA101	}102	s.Reachable = true103	i := s.Size104	s.Size += int64(ctxt.Arch.Ptrsize)105	Symgrow(ctxt, s, s.Size)106	r := Addrel(s)107	r.Sym = t108	r.Off = int32(i)109	r.Siz = uint8(ctxt.Arch.Ptrsize)110	r.Type = R_ADDR111	r.Add = add112	return i + int64(r.Siz)113}114func Addpcrelplus(ctxt *Link, s *LSym, t *LSym, add int64) int64 {115	if s.Type == 0 {116		s.Type = SDATA117	}118	s.Reachable = true119	i := s.Size120	s.Size += 4121	Symgrow(ctxt, s, s.Size)122	r := Addrel(s)123	r.Sym = t124	r.Off = int32(i)125	r.Add = add126	r.Type = R_PCREL127	r.Siz = 4128	return i + int64(r.Siz)129}130func Addaddr(ctxt *Link, s *LSym, t *LSym) int64 {131	return Addaddrplus(ctxt, s, t, 0)132}133func setaddrplus(ctxt *Link, s *LSym, off int64, t *LSym, add int64) int64 {134	if s.Type == 0 {135		s.Type = SDATA136	}137	s.Reachable = true138	if off+int64(ctxt.Arch.Ptrsize) > s.Size {139		s.Size = off + int64(ctxt.Arch.Ptrsize)140		Symgrow(ctxt, s, s.Size)141	}142	r := Addrel(s)143	r.Sym = t144	r.Off = int32(off)145	r.Siz = uint8(ctxt.Arch.Ptrsize)146	r.Type = R_ADDR147	r.Add = add148	return off + int64(r.Siz)149}150func setaddr(ctxt *Link, s *LSym, off int64, t *LSym) int64 {151	return setaddrplus(ctxt, s, off, t, 0)152}153func addsize(ctxt *Link, s *LSym, t *LSym) int64 {154	if s.Type == 0 {155		s.Type = SDATA156	}157	s.Reachable = true158	i := s.Size159	s.Size += int64(ctxt.Arch.Ptrsize)160	Symgrow(ctxt, s, s.Size)161	r := Addrel(s)162	r.Sym = t163	r.Off = int32(i)164	r.Siz = uint8(ctxt.Arch.Ptrsize)165	r.Type = R_SIZE166	return i + int64(r.Siz)167}168func addaddrplus4(ctxt *Link, s *LSym, t *LSym, add int64) int64 {169	if s.Type == 0 {170		s.Type = SDATA171	}172	s.Reachable = true173	i := s.Size174	s.Size += 4175	Symgrow(ctxt, s, s.Size)176	r := Addrel(s)177	r.Sym = t178	r.Off = int32(i)179	r.Siz = 4180	r.Type = R_ADDR181	r.Add = add182	return i + int64(r.Siz)183}184/*185 * divide-and-conquer list-link186 * sort of LSym* structures.187 * Used for the data block.188 */189func datcmp(s1 *LSym, s2 *LSym) int {190	if s1.Type != s2.Type {191		return int(s1.Type) - int(s2.Type)192	}193	// For ppc64, we want to interleave the .got and .toc sections194	// from input files.  Both are type SELFGOT, so in that case195	// fall through to the name comparison (conveniently, .got196	// sorts before .toc).197	if s1.Type != SELFGOT && s1.Size != s2.Size {198		if s1.Size < s2.Size {199			return -1200		}201		return +1202	}203	return stringsCompare(s1.Name, s2.Name)204}205func listnextp(s *LSym) **LSym {206	return &s.Next207}208func listsubp(s *LSym) **LSym {209	return &s.Sub210}211func listsort(l *LSym, cmp func(*LSym, *LSym) int, nextp func(*LSym) **LSym) *LSym {212	if l == nil || *nextp(l) == nil {213		return l214	}215	l1 := l216	l2 := l217	for {218		l2 = *nextp(l2)219		if l2 == nil {220			break221		}222		l2 = *nextp(l2)223		if l2 == nil {224			break225		}226		l1 = *nextp(l1)227	}228	l2 = *nextp(l1)229	*nextp(l1) = nil230	l1 = listsort(l, cmp, nextp)231	l2 = listsort(l2, cmp, nextp)232	/* set up lead element */233	if cmp(l1, l2) < 0 {234		l = l1235		l1 = *nextp(l1)236	} else {237		l = l2238		l2 = *nextp(l2)239	}240	le := l241	for {242		if l1 == nil {243			for l2 != nil {244				*nextp(le) = l2245				le = l2246				l2 = *nextp(l2)247			}248			*nextp(le) = nil249			break250		}251		if l2 == nil {252			for l1 != nil {253				*nextp(le) = l1254				le = l1255				l1 = *nextp(l1)256			}257			break258		}259		if cmp(l1, l2) < 0 {260			*nextp(le) = l1261			le = l1262			l1 = *nextp(l1)263		} else {264			*nextp(le) = l2265			le = l2266			l2 = *nextp(l2)267		}268	}269	*nextp(le) = nil270	return l271}272func relocsym(s *LSym) {273	var r *Reloc274	var rs *LSym275	var i16 int16276	var off int32277	var siz int32278	var fl int32279	var o int64280	Ctxt.Cursym = s281	for ri := int32(0); ri < int32(len(s.R)); ri++ {282		r = &s.R[ri]283		r.Done = 1284		off = r.Off285		siz = int32(r.Siz)286		if off < 0 || off+siz > int32(len(s.P)) {287			Diag("%s: invalid relocation %d+%d not in [%d,%d)", s.Name, off, siz, 0, len(s.P))288			continue289		}290		if r.Sym != nil && (r.Sym.Type&(SMASK|SHIDDEN) == 0 || r.Sym.Type&SMASK == SXREF) {291			Diag("%s: not defined", r.Sym.Name)292			continue293		}294		if r.Type >= 256 {295			continue296		}297		if r.Siz == 0 { // informational relocation - no work to do298			continue299		}300		// Solaris needs the ability to reference dynimport symbols.301		if HEADTYPE != Hsolaris && r.Sym != nil && r.Sym.Type == SDYNIMPORT {302			Diag("unhandled relocation for %s (type %d rtype %d)", r.Sym.Name, r.Sym.Type, r.Type)303		}304		if r.Sym != nil && r.Sym.Type != STLSBSS && !r.Sym.Reachable {305			Diag("unreachable sym in relocation: %s %s", s.Name, r.Sym.Name)306		}307		// Android emulates run_time.tlsg as a regular variable.308		if r.Type == R_TLS && goos == "android" {309			r.Type = R_ADDR310		}311		switch r.Type {312		default:313			o = 0314			if Thearch.Archreloc(r, s, &o) < 0 {315				Diag("unknown reloc %d", r.Type)316			}317		case R_TLS:318			if Linkmode == LinkInternal && Iself && Thearch.Thechar == '5' {319				// On ELF ARM, the thread pointer is 8 bytes before320				// the start of the thread-local data block, so add 8321				// to the actual TLS offset (r->sym->value).322				// This 8 seems to be a fundamental constant of323				// ELF on ARM (or maybe Glibc on ARM); it is not324				// related to the fact that our own TLS storage happens325				// to take up 8 bytes.326				o = 8 + r.Sym.Value327				break328			}329			r.Done = 0330			o = 0331			if Thearch.Thechar != '6' {332				o = r.Add333			}334		case R_TLS_LE:335			if Linkmode == LinkExternal && Iself && HEADTYPE != Hopenbsd {336				r.Done = 0337				r.Sym = Ctxt.Tlsg338				r.Xsym = Ctxt.Tlsg339				r.Xadd = r.Add340				o = 0341				if Thearch.Thechar != '6' {342					o = r.Add343				}344				break345			}346			o = int64(Ctxt.Tlsoffset) + r.Add347		case R_TLS_IE:348			if Linkmode == LinkExternal && Iself && HEADTYPE != Hopenbsd {349				r.Done = 0350				r.Sym = Ctxt.Tlsg351				r.Xsym = Ctxt.Tlsg352				r.Xadd = r.Add353				o = 0354				if Thearch.Thechar != '6' {355					o = r.Add356				}357				break358			}359			if Iself || Ctxt.Headtype == Hplan9 {360				o = int64(Ctxt.Tlsoffset) + r.Add361			} else if Ctxt.Headtype == Hwindows {362				o = r.Add363			} else {364				log.Fatalf("unexpected R_TLS_IE relocation for %s", Headstr(Ctxt.Headtype))365			}366		case R_ADDR:367			if Linkmode == LinkExternal && r.Sym.Type != SCONST {368				r.Done = 0369				// set up addend for eventual relocation via outer symbol.370				rs = r.Sym371				r.Xadd = r.Add372				for rs.Outer != nil {373					r.Xadd += Symaddr(rs) - Symaddr(rs.Outer)374					rs = rs.Outer375				}376				if rs.Type != SHOSTOBJ && rs.Type != SDYNIMPORT && rs.Sect == nil {377					Diag("missing section for %s", rs.Name)378				}379				r.Xsym = rs380				o = r.Xadd381				if Iself {382					if Thearch.Thechar == '6' {383						o = 0384					}385				} else if HEADTYPE == Hdarwin {386					if rs.Type != SHOSTOBJ {387						o += Symaddr(rs)388					}389				} else if HEADTYPE == Hwindows {390					// nothing to do391				} else {392					Diag("unhandled pcrel relocation for %s", headstring)393				}394				break395			}396			o = Symaddr(r.Sym) + r.Add397			// On amd64, 4-byte offsets will be sign-extended, so it is impossible to398			// access more than 2GB of static data; fail at link time is better than399			// fail at run_time. See http://golang.org/issue/7980.400			// Instead of special casing only amd64, we treat this as an error on all401			// 64-bit architectures so as to be future-proof.402			if int32(o) < 0 && Thearch.Ptrsize > 4 && siz == 4 {403				Diag("non-pc-relative relocation address is too big: %#x (%#x + %#x)", uint64(o), Symaddr(r.Sym), r.Add)404				Errorexit()405			}406			// r->sym can be null when CALL $(constant) is transformed from absolute PC to relative PC call.407		case R_CALL,408			R_PCREL:409			if Linkmode == LinkExternal && r.Sym != nil && r.Sym.Type != SCONST && r.Sym.Sect != Ctxt.Cursym.Sect {410				r.Done = 0411				// set up addend for eventual relocation via outer symbol.412				rs = r.Sym413				r.Xadd = r.Add414				for rs.Outer != nil {415					r.Xadd += Symaddr(rs) - Symaddr(rs.Outer)416					rs = rs.Outer417				}418				r.Xadd -= int64(r.Siz) // relative to address after the relocated chunk419				if rs.Type != SHOSTOBJ && rs.Type != SDYNIMPORT && rs.Sect == nil {420					Diag("missing section for %s", rs.Name)421				}422				r.Xsym = rs423				o = r.Xadd424				if Iself {425					if Thearch.Thechar == '6' {426						o = 0427					}428				} else if HEADTYPE == Hdarwin {429					if r.Type == R_CALL {430						if rs.Type != SHOSTOBJ {431							o += int64(uint64(Symaddr(rs)) - (rs.Sect.(*Section)).Vaddr)432						}433						o -= int64(r.Off) // relative to section offset, not symbol434					} else {435						o += int64(r.Siz)436					}437				} else if HEADTYPE == Hwindows && Thearch.Thechar == '6' { // only amd64 needs PCREL438					// PE/COFF's PC32 relocation uses the address after the relocated439					// bytes as the base. Compensate by skewing the addend.440					o += int64(r.Siz)441					// GNU ld always add VirtualAddress of the .text section to the442					// relocated address, compensate that.443					o -= int64(s.Sect.(*Section).Vaddr - PEBASE)444				} else {445					Diag("unhandled pcrel relocation for %s", headstring)446				}447				break448			}449			o = 0450			if r.Sym != nil {451				o += Symaddr(r.Sym)452			}453			// NOTE: The (int32) cast on the next line works around a bug in Plan 9's 8c454			// compiler. The expression s->value + r->off + r->siz is int32 + int32 +455			// uchar, and Plan 9 8c incorrectly treats the expression as type uint32456			// instead of int32, causing incorrect values when sign extended for adding457			// to o. The bug only occurs on Plan 9, because this C program is compiled by458			// the standard host compiler (gcc on most other systems).459			o += r.Add - (s.Value + int64(r.Off) + int64(int32(r.Siz)))460		case R_SIZE:461			o = r.Sym.Size + r.Add462		}463		if r.Variant != RV_NONE {464			o = Thearch.Archrelocvariant(r, s, o)465		}466		if false {467			nam := "<nil>"468			if r.Sym != nil {469				nam = r.Sym.Name470			}471			fmt.Printf("relocate %s %#x (%#x+%#x, size %d) => %s %#x +%#x [type %d/%d, %x]\n", s.Name, s.Value+int64(off), s.Value, r.Off, r.Siz, nam, Symaddr(r.Sym), r.Add, r.Type, r.Variant, o)472		}473		switch siz {474		default:475			Ctxt.Cursym = s476			Diag("bad reloc size %#x for %s", uint32(siz), r.Sym.Name)477			fallthrough478			// TODO(rsc): Remove.479		case 1:480			s.P[off] = byte(int8(o))481		case 2:482			if o != int64(int16(o)) {483				Diag("relocation address is too big: %#x", o)484			}485			i16 = int16(o)486			Ctxt.Arch.ByteOrder.PutUint16(s.P[off:], uint16(i16))487		case 4:488			if r.Type == R_PCREL || r.Type == R_CALL {489				if o != int64(int32(o)) {490					Diag("pc-relative relocation address is too big: %#x", o)491				}492			} else {493				if o != int64(int32(o)) && o != int64(uint32(o)) {494					Diag("non-pc-relative relocation address is too big: %#x", uint64(o))495				}496			}497			fl = int32(o)498			Ctxt.Arch.ByteOrder.PutUint32(s.P[off:], uint32(fl))499		case 8:500			Ctxt.Arch.ByteOrder.PutUint64(s.P[off:], uint64(o))501		}502	}503}504func reloc() {505	if Debug['v'] != 0 {506		fmt.Fprintf(&Bso, "%5.2f reloc\n", obj.Cputime())507	}508	Bflush(&Bso)509	for s := Ctxt.Textp; s != nil; s = s.Next {510		relocsym(s)511	}512	for s := datap; s != nil; s = s.Next {513		relocsym(s)514	}515}516func dynrelocsym(s *LSym) {517	if HEADTYPE == Hwindows && Linkmode != LinkExternal {518		rel := Linklookup(Ctxt, ".rel", 0)519		if s == rel {520			return521		}522		var r *Reloc523		var targ *LSym524		for ri := 0; ri < len(s.R); ri++ {525			r = &s.R[ri]526			targ = r.Sym527			if targ == nil {528				continue529			}530			if !targ.Reachable {531				Diag("internal inconsistency: dynamic symbol %s is not reachable.", targ.Name)532			}533			if r.Sym.Plt == -2 && r.Sym.Got != -2 { // make dynimport JMP table for PE object files.534				targ.Plt = int32(rel.Size)535				r.Sym = rel536				r.Add = int64(targ.Plt)537				// jmp *addr538				if Thearch.Thechar == '8' {539					Adduint8(Ctxt, rel, 0xff)540					Adduint8(Ctxt, rel, 0x25)541					Addaddr(Ctxt, rel, targ)542					Adduint8(Ctxt, rel, 0x90)543					Adduint8(Ctxt, rel, 0x90)544				} else {545					Adduint8(Ctxt, rel, 0xff)546					Adduint8(Ctxt, rel, 0x24)547					Adduint8(Ctxt, rel, 0x25)548					addaddrplus4(Ctxt, rel, targ, 0)549					Adduint8(Ctxt, rel, 0x90)550				}551			} else if r.Sym.Plt >= 0 {552				r.Sym = rel553				r.Add = int64(targ.Plt)554			}555		}556		return557	}558	var r *Reloc559	for ri := 0; ri < len(s.R); ri++ {560		r = &s.R[ri]561		if r.Sym != nil && r.Sym.Type == SDYNIMPORT || r.Type >= 256 {562			if r.Sym != nil && !r.Sym.Reachable {563				Diag("internal inconsistency: dynamic symbol %s is not reachable.", r.Sym.Name)564			}565			Thearch.Adddynrel(s, r)566		}567	}568}569func dynreloc() {570	// -d suppresses dynamic loader format, so we may as well not571	// compute these sections or mark their symbols as reachable.572	if Debug['d'] != 0 && HEADTYPE != Hwindows {573		return574	}575	if Debug['v'] != 0 {576		fmt.Fprintf(&Bso, "%5.2f reloc\n", obj.Cputime())577	}578	Bflush(&Bso)579	for s := Ctxt.Textp; s != nil; s = s.Next {580		dynrelocsym(s)581	}582	for s := datap; s != nil; s = s.Next {583		dynrelocsym(s)584	}585	if Iself {586		elfdynhash()587	}588}589func blk(start *LSym, addr int64, size int64) {590	var sym *LSym591	for sym = start; sym != nil; sym = sym.Next {592		if sym.Type&SSUB == 0 && sym.Value >= addr {593			break594		}595	}596	eaddr := addr + size597	var ep []byte598	var p []byte599	for ; sym != nil; sym = sym.Next {600		if sym.Type&SSUB != 0 {601			continue602		}603		if sym.Value >= eaddr {604			break605		}606		Ctxt.Cursym = sym607		if sym.Value < addr {608			Diag("phase error: addr=%#x but sym=%#x type=%d", int64(addr), int64(sym.Value), sym.Type)609			Errorexit()610		}611		for ; addr < sym.Value; addr++ {612			Cput(0)613		}614		p = sym.P615		ep = p[len(sym.P):]616		for -cap(p) < -cap(ep) {617			Cput(uint8(p[0]))618			p = p[1:]619		}620		addr += int64(len(sym.P))621		for ; addr < sym.Value+sym.Size; addr++ {622			Cput(0)623		}624		if addr != sym.Value+sym.Size {625			Diag("phase error: addr=%#x value+size=%#x", int64(addr), int64(sym.Value)+sym.Size)626			Errorexit()627		}628		if sym.Value+sym.Size >= eaddr {629			break630		}631	}632	for ; addr < eaddr; addr++ {633		Cput(0)634	}635	Cflush()636}637func Codeblk(addr int64, size int64) {638	if Debug['a'] != 0 {639		fmt.Fprintf(&Bso, "codeblk [%#x,%#x) at offset %#x\n", addr, addr+size, Cpos())640	}641	blk(Ctxt.Textp, addr, size)642	/* again for printing */643	if Debug['a'] == 0 {644		return645	}646	var sym *LSym647	for sym = Ctxt.Textp; sym != nil; sym = sym.Next {648		if !sym.Reachable {649			continue650		}651		if sym.Value >= addr {652			break653		}654	}655	eaddr := addr + size656	var n int64657	var q []byte658	for ; sym != nil; sym = sym.Next {659		if !sym.Reachable {660			continue661		}662		if sym.Value >= eaddr {663			break664		}665		if addr < sym.Value {666			fmt.Fprintf(&Bso, "%-20s %.8x|", "_", uint64(int64(addr)))667			for ; addr < sym.Value; addr++ {668				fmt.Fprintf(&Bso, " %.2x", 0)669			}670			fmt.Fprintf(&Bso, "\n")671		}672		fmt.Fprintf(&Bso, "%.6x\t%-20s\n", uint64(int64(addr)), sym.Name)673		n = sym.Size674		q = sym.P675		for n >= 16 {676			fmt.Fprintf(&Bso, "%.6x\t%%-20.16I\n", uint64(addr), q)677			addr += 16678			q = q[16:]679			n -= 16680		}681		if n > 0 {682			fmt.Fprintf(&Bso, "%.6x\t%%-20.*I\n", uint64(addr), int(n), q)683		}684		addr += n685	}686	if addr < eaddr {687		fmt.Fprintf(&Bso, "%-20s %.8x|", "_", uint64(int64(addr)))688		for ; addr < eaddr; addr++ {689			fmt.Fprintf(&Bso, " %.2x", 0)690		}691	}692	Bflush(&Bso)693}694func Datblk(addr int64, size int64) {695	if Debug['a'] != 0 {696		fmt.Fprintf(&Bso, "datblk [%#x,%#x) at offset %#x\n", addr, addr+size, Cpos())697	}698	blk(datap, addr, size)699	/* again for printing */700	if Debug['a'] == 0 {701		return702	}703	var sym *LSym704	for sym = datap; sym != nil; sym = sym.Next {705		if sym.Value >= addr {706			break707		}708	}709	eaddr := addr + size710	var ep []byte711	var i int64712	var p []byte713	var r *Reloc714	var rsname string715	var typ string716	for ; sym != nil; sym = sym.Next {717		if sym.Value >= eaddr {718			break719		}720		if addr < sym.Value {721			fmt.Fprintf(&Bso, "\t%.8x| 00 ...\n", uint64(addr))722			addr = sym.Value723		}724		fmt.Fprintf(&Bso, "%s\n\t%.8x|", sym.Name, uint(addr))725		p = sym.P726		ep = p[len(sym.P):]727		for -cap(p) < -cap(ep) {728			if -cap(p) > -cap(sym.P) && int(-cap(p)+cap(sym.P))%16 == 0 {729				fmt.Fprintf(&Bso, "\n\t%.8x|", uint(addr+int64(-cap(p)+cap(sym.P))))730			}731			fmt.Fprintf(&Bso, " %.2x", p[0])732			p = p[1:]733		}734		addr += int64(len(sym.P))735		for ; addr < sym.Value+sym.Size; addr++ {736			fmt.Fprintf(&Bso, " %.2x", 0)737		}738		fmt.Fprintf(&Bso, "\n")739		if Linkmode == LinkExternal {740			for i = 0; i < int64(len(sym.R)); i++ {741				r = &sym.R[i]742				rsname = ""743				if r.Sym != nil {744					rsname = r.Sym.Name745				}746				typ = "?"747				switch r.Type {748				case R_ADDR:749					typ = "addr"750				case R_PCREL:751					typ = "pcrel"752				case R_CALL:753					typ = "call"754				}755				fmt.Fprintf(&Bso, "\treloc %.8x/%d %s %s+%#x [%#x]\n", uint(sym.Value+int64(r.Off)), r.Siz, typ, rsname, int64(r.Add), int64(r.Sym.Value+r.Add))756			}757		}758	}759	if addr < eaddr {760		fmt.Fprintf(&Bso, "\t%.8x| 00 ...\n", uint(addr))761	}762	fmt.Fprintf(&Bso, "\t%.8x|\n", uint(eaddr))763}764func strnput(s string, n int) {765	for ; n > 0 && s != ""; s = s[1:] {766		Cput(uint8(s[0]))767		n--768	}769	for n > 0 {770		Cput(0)771		n--772	}773}774var addstrdata_name string775func addstrdata1(arg string) {776	if strings.HasPrefix(arg, "VALUE:") {777		addstrdata(addstrdata_name, arg[6:])778	} else {779		addstrdata_name = arg780	}781}782func addstrdata(name string, value string) {783	p := fmt.Sprintf("%s.str", name)784	sp := Linklookup(Ctxt, p, 0)785	Addstring(sp, value)786	sp.Type = SRODATA787	s := Linklookup(Ctxt, name, 0)788	s.Size = 0789	s.Dupok = 1790	reachable := s.Reachable791	Addaddr(Ctxt, s, sp)792	adduintxx(Ctxt, s, uint64(len(value)), Thearch.Ptrsize)793	// addstring, addaddr, etc., mark the symbols as reachable.794	// In this case that is not necessarily true, so stick to what795	// we know before entering this function.796	s.Reachable = reachable797	sp.Reachable = reachable798}799func Addstring(s *LSym, str string) int64 {800	if s.Type == 0 {801		s.Type = SNOPTRDATA802	}803	s.Reachable = true804	r := int32(s.Size)805	n := len(str) + 1806	if s.Name == ".shstrtab" {807		elfsetstring(str, int(r))808	}809	Symgrow(Ctxt, s, int64(r)+int64(n))810	copy(s.P[r:], str)811	s.P[int(r)+len(str)] = 0812	s.Size += int64(n)813	return int64(r)814}815func dosymtype() {816	for s := Ctxt.Allsym; s != nil; s = s.Allsym {817		if len(s.P) > 0 {818			if s.Type == SBSS {819				s.Type = SDATA820			}821			if s.Type == SNOPTRBSS {822				s.Type = SNOPTRDATA823			}824		}825	}826}827func symalign(s *LSym) int32 {828	if s.Align != 0 {829		return s.Align830	}831	align := int32(Thearch.Maxalign)832	for int64(align) > s.Size && align > 1 {833		align >>= 1834	}835	if align < s.Align {836		align = s.Align837	}838	return align839}840func aligndatsize(datsize int64, s *LSym) int64 {841	return Rnd(datsize, int64(symalign(s)))842}843// maxalign returns the maximum required alignment for844// the list of symbols s; the list stops when s->type exceeds type.845func maxalign(s *LSym, type_ int) int32 {846	var align int32847	max := int32(0)848	for ; s != nil && int(s.Type) <= type_; s = s.Next {849		align = symalign(s)850		if max < align {851			max = align852		}853	}854	return max855}856// Helper object for building GC type programs.857type ProgGen struct {858	s        *LSym859	datasize int32860	data     [256 / obj.PointersPerByte]uint8861	pos      int64862}863func proggeninit(g *ProgGen, s *LSym) {864	g.s = s865	g.datasize = 0866	g.pos = 0867	g.data = [256 / obj.PointersPerByte]uint8{}868}869func proggenemit(g *ProgGen, v uint8) {870	Adduint8(Ctxt, g.s, v)871}872// Writes insData block from g->data.873func proggendataflush(g *ProgGen) {874	if g.datasize == 0 {875		return876	}877	proggenemit(g, obj.InsData)878	proggenemit(g, uint8(g.datasize))879	s := (g.datasize + obj.PointersPerByte - 1) / obj.PointersPerByte880	for i := int32(0); i < s; i++ {881		proggenemit(g, g.data[i])882	}883	g.datasize = 0884	g.data = [256 / obj.PointersPerByte]uint8{}885}886func proggendata(g *ProgGen, d uint8) {887	g.data[g.datasize/obj.PointersPerByte] |= d << uint((g.datasize%obj.PointersPerByte)*obj.BitsPerPointer)888	g.datasize++889	if g.datasize == 255 {890		proggendataflush(g)891	}892}893// Skip v bytes due to alignment, etc.894func proggenskip(g *ProgGen, off int64, v int64) {895	for i := off; i < off+v; i++ {896		if (i % int64(Thearch.Ptrsize)) == 0 {897			proggendata(g, obj.BitsScalar)898		}899	}900}901// Emit insArray instruction.902func proggenarray(g *ProgGen, length int64) {903	var i int32904	proggendataflush(g)905	proggenemit(g, obj.InsArray)906	for i = 0; i < int32(Thearch.Ptrsize); i, length = i+1, length>>8 {907		proggenemit(g, uint8(length))908	}909}910func proggenarrayend(g *ProgGen) {911	proggendataflush(g)912	proggenemit(g, obj.InsArrayEnd)913}914func proggenfini(g *ProgGen, size int64) {915	proggenskip(g, g.pos, size-g.pos)916	proggendataflush(g)917	proggenemit(g, obj.InsEnd)918}919// This function generates GC pointer info for global variables.920func proggenaddsym(g *ProgGen, s *LSym) {921	if s.Size == 0 {922		return923	}924	// Skip alignment hole from the previous symbol.925	proggenskip(g, g.pos, s.Value-g.pos)926	g.pos += s.Value - g.pos927	// The test for names beginning with . here is meant928	// to keep .dynamic and .dynsym from turning up as929	// conservative symbols. They should be marked SELFSECT930	// and not SDATA, but sometimes that doesn't happen.931	// Leave debugging the SDATA issue for the Go rewrite.932	if s.Gotype == nil && s.Size >= int64(Thearch.Ptrsize) && s.Name[0] != '.' {933		// conservative scan934		Diag("missing Go type information for global symbol: %s size %d", s.Name, int(s.Size))935		if (s.Size%int64(Thearch.Ptrsize) != 0) || (g.pos%int64(Thearch.Ptrsize) != 0) {936			Diag("proggenaddsym: unaligned conservative symbol %s: size=%d pos=%d", s.Name, s.Size, g.pos)937		}938		size := (s.Size + int64(Thearch.Ptrsize) - 1) / int64(Thearch.Ptrsize) * int64(Thearch.Ptrsize)939		if size < int64(32*Thearch.Ptrsize) {940			// Emit small symbols as data.941			for i := int64(0); i < size/int64(Thearch.Ptrsize); i++ {942				proggendata(g, obj.BitsPointer)943			}944		} else {945			// Emit large symbols as array.946			proggenarray(g, size/int64(Thearch.Ptrsize))947			proggendata(g, obj.BitsPointer)948			proggenarrayend(g)949		}950		g.pos = s.Value + size951	} else if s.Gotype == nil || decodetype_noptr(s.Gotype) != 0 || s.Size < int64(Thearch.Ptrsize) || s.Name[0] == '.' {952		// no scan953		if s.Size < int64(32*Thearch.Ptrsize) {954			// Emit small symbols as data.955			// This case also handles unaligned and tiny symbols, so tread carefully.956			for i := s.Value; i < s.Value+s.Size; i++ {957				if (i % int64(Thearch.Ptrsize)) == 0 {958					proggendata(g, obj.BitsScalar)959				}960			}961		} else {962			// Emit large symbols as array.963			if (s.Size%int64(Thearch.Ptrsize) != 0) || (g.pos%int64(Thearch.Ptrsize) != 0) {964				Diag("proggenaddsym: unaligned noscan symbol %s: size=%d pos=%d", s.Name, s.Size, g.pos)965			}966			proggenarray(g, s.Size/int64(Thearch.Ptrsize))967			proggendata(g, obj.BitsScalar)968			proggenarrayend(g)969		}970		g.pos = s.Value + s.Size971	} else if decodetype_usegcprog(s.Gotype) != 0 {972		// gc program, copy directly973		proggendataflush(g)974		gcprog := decodetype_gcprog(s.Gotype)975		size := decodetype_size(s.Gotype)976		if (size%int64(Thearch.Ptrsize) != 0) || (g.pos%int64(Thearch.Ptrsize) != 0) {977			Diag("proggenaddsym: unaligned gcprog symbol %s: size=%d pos=%d", s.Name, s.Size, g.pos)978		}979		for i := int64(0); i < int64(len(gcprog.P)-1); i++ {980			proggenemit(g, uint8(gcprog.P[i]))981		}982		g.pos = s.Value + size983	} else {984		// gc mask, it's small so emit as data985		mask := decodetype_gcmask(s.Gotype)986		size := decodetype_size(s.Gotype)987		if (size%int64(Thearch.Ptrsize) != 0) || (g.pos%int64(Thearch.Ptrsize) != 0) {988			Diag("proggenaddsym: unaligned gcmask symbol %s: size=%d pos=%d", s.Name, s.Size, g.pos)989		}990		for i := int64(0); i < size; i += int64(Thearch.Ptrsize) {991			proggendata(g, uint8((mask[i/int64(Thearch.Ptrsize)/2]>>uint64((i/int64(Thearch.Ptrsize)%2)*4+2))&obj.BitsMask))992		}993		g.pos = s.Value + size994	}995}996func growdatsize(datsizep *int64, s *LSym) {997	datsize := *datsizep998	if s.Size < 0 {999		Diag("negative size (datsize = %d, s->size = %d)", datsize, s.Size)1000	}1001	if datsize+s.Size < datsize {1002		Diag("symbol too large (datsize = %d, s->size = %d)", datsize, s.Size)1003	}1004	*datsizep = datsize + s.Size1005}1006func dodata() {1007	if Debug['v'] != 0 {1008		fmt.Fprintf(&Bso, "%5.2f dodata\n", obj.Cputime())1009	}1010	Bflush(&Bso)1011	var last *LSym1012	datap = nil1013	for s := Ctxt.Allsym; s != nil; s = s.Allsym {1014		if !s.Reachable || s.Special != 0 {1015			continue1016		}1017		if STEXT < s.Type && s.Type < SXREF {1018			if s.Onlist != 0 {1019				log.Fatalf("symbol %s listed multiple times", s.Name)1020			}1021			s.Onlist = 11022			if last == nil {1023				datap = s1024			} else {1025				last.Next = s1026			}1027			s.Next = nil1028			last = s1029		}1030	}1031	for s := datap; s != nil; s = s.Next {1032		if int64(len(s.P)) > s.Size {1033			Diag("%s: initialize bounds (%d < %d)", s.Name, int64(s.Size), len(s.P))1034		}1035	}1036	/*1037	 * now that we have the datap list, but before we start1038	 * to assign addresses, record all the necessary1039	 * dynamic relocations.  these will grow the relocation1040	 * symbol, which is itself data.1041	 *1042	 * on darwin, we need the symbol table numbers for dynreloc.1043	 */1044	if HEADTYPE == Hdarwin {1045		machosymorder()1046	}1047	dynreloc()1048	/* some symbols may no longer belong in datap (Mach-O) */1049	var l **LSym1050	var s *LSym1051	for l = &datap; ; {1052		s = *l1053		if s == nil {1054			break1055		}1056		if s.Type <= STEXT || SXREF <= s.Type {1057			*l = s.Next1058		} else {1059			l = &s.Next1060		}1061	}1062	*l = nil1063	datap = listsort(datap, datcmp, listnextp)1064	/*1065	 * allocate sections.  list is sorted by type,1066	 * so we can just walk it for each piece we want to emit.1067	 * segdata is processed before segtext, because we need1068	 * to see all symbols in the .data and .bss sections in order1069	 * to generate garbage collection information.1070	 */1071	/* begin segdata */1072	/* skip symbols belonging to segtext */1073	s = datap1074	for ; s != nil && s.Type < SELFSECT; s = s.Next {1075	}1076	/* writable ELF sections */1077	datsize := int64(0)1078	var sect *Section1079	for ; s != nil && s.Type < SELFGOT; s = s.Next {1080		sect = addsection(&Segdata, s.Name, 06)1081		sect.Align = symalign(s)1082		datsize = Rnd(datsize, int64(sect.Align))1083		sect.Vaddr = uint64(datsize)1084		s.Sect = sect1085		s.Type = SDATA1086		s.Value = int64(uint64(datsize) - sect.Vaddr)1087		growdatsize(&datsize, s)1088		sect.Length = uint64(datsize) - sect.Vaddr1089	}1090	/* .got (and .toc on ppc64) */1091	if s.Type == SELFGOT {1092		sect := addsection(&Segdata, ".got", 06)1093		sect.Align = maxalign(s, SELFGOT)1094		datsize = Rnd(datsize, int64(sect.Align))1095		sect.Vaddr = uint64(datsize)1096		var toc *LSym1097		for ; s != nil && s.Type == SELFGOT; s = s.Next {1098			datsize = aligndatsize(datsize, s)1099			s.Sect = sect1100			s.Type = SDATA1101			s.Value = int64(uint64(datsize) - sect.Vaddr)1102			// Resolve .TOC. symbol for this object file (ppc64)1103			toc = Linkrlookup(Ctxt, ".TOC.", int(s.Version))1104			if toc != nil {1105				toc.Sect = sect1106				toc.Outer = s1107				toc.Sub = s.Sub1108				s.Sub = toc1109				toc.Value = 0x80001110			}1111			growdatsize(&datsize, s)1112		}1113		sect.Length = uint64(datsize) - sect.Vaddr1114	}1115	/* pointer-free data */1116	sect = addsection(&Segdata, ".noptrdata", 06)1117	sect.Align = maxalign(s, SINITARR-1)1118	datsize = Rnd(datsize, int64(sect.Align))1119	sect.Vaddr = uint64(datsize)1120	Linklookup(Ctxt, "run_time.noptrdata", 0).Sect = sect1121	Linklookup(Ctxt, "run_time.enoptrdata", 0).Sect = sect1122	for ; s != nil && s.Type < SINITARR; s = s.Next {1123		datsize = aligndatsize(datsize, s)1124		s.Sect = sect1125		s.Type = SDATA1126		s.Value = int64(uint64(datsize) - sect.Vaddr)1127		growdatsize(&datsize, s)1128	}1129	sect.Length = uint64(datsize) - sect.Vaddr1130	/* shared library initializer */1131	if Flag_shared != 0 {1132		sect := addsection(&Segdata, ".init_array", 06)1133		sect.Align = maxalign(s, SINITARR)1134		datsize = Rnd(datsize, int64(sect.Align))1135		sect.Vaddr = uint64(datsize)1136		for ; s != nil && s.Type == SINITARR; s = s.Next {1137			datsize = aligndatsize(datsize, s)1138			s.Sect = sect1139			s.Value = int64(uint64(datsize) - sect.Vaddr)1140			growdatsize(&datsize, s)1141		}1142		sect.Length = uint64(datsize) - sect.Vaddr1143	}1144	/* data */1145	sect = addsection(&Segdata, ".data", 06)1146	sect.Align = maxalign(s, SBSS-1)1147	datsize = Rnd(datsize, int64(sect.Align))1148	sect.Vaddr = uint64(datsize)1149	Linklookup(Ctxt, "run_time.data", 0).Sect = sect1150	Linklookup(Ctxt, "run_time.edata", 0).Sect = sect1151	gcdata := Linklookup(Ctxt, "run_time.gcdata", 0)1152	var gen ProgGen1153	proggeninit(&gen, gcdata)1154	for ; s != nil && s.Type < SBSS; s = s.Next {1155		if s.Type == SINITARR {1156			Ctxt.Cursym = s1157			Diag("unexpected symbol type %d", s.Type)1158		}1159		s.Sect = sect1160		s.Type = SDATA1161		datsize = aligndatsize(datsize, s)1162		s.Value = int64(uint64(datsize) - sect.Vaddr)1163		proggenaddsym(&gen, s) // gc1164		growdatsize(&datsize, s)1165	}1166	sect.Length = uint64(datsize) - sect.Vaddr1167	proggenfini(&gen, int64(sect.Length)) // gc1168	/* bss */1169	sect = addsection(&Segdata, ".bss", 06)1170	sect.Align = maxalign(s, SNOPTRBSS-1)1171	datsize = Rnd(datsize, int64(sect.Align))1172	sect.Vaddr = uint64(datsize)1173	Linklookup(Ctxt, "run_time.bss", 0).Sect = sect1174	Linklookup(Ctxt, "run_time.ebss", 0).Sect = sect1175	gcbss := Linklookup(Ctxt, "run_time.gcbss", 0)1176	proggeninit(&gen, gcbss)1177	for ; s != nil && s.Type < SNOPTRBSS; s = s.Next {1178		s.Sect = sect1179		datsize = aligndatsize(datsize, s)1180		s.Value = int64(uint64(datsize) - sect.Vaddr)1181		proggenaddsym(&gen, s) // gc1182		growdatsize(&datsize, s)1183	}1184	sect.Length = uint64(datsize) - sect.Vaddr1185	proggenfini(&gen, int64(sect.Length)) // gc1186	/* pointer-free bss */1187	sect = addsection(&Segdata, ".noptrbss", 06)1188	sect.Align = maxalign(s, SNOPTRBSS)1189	datsize = Rnd(datsize, int64(sect.Align))1190	sect.Vaddr = uint64(datsize)1191	Linklookup(Ctxt, "run_time.noptrbss", 0).Sect = sect1192	Linklookup(Ctxt, "run_time.enoptrbss", 0).Sect = sect1193	for ; s != nil && s.Type == SNOPTRBSS; s = s.Next {1194		datsize = aligndatsize(datsize, s)1195		s.Sect = sect1196		s.Value = int64(uint64(datsize) - sect.Vaddr)1197		growdatsize(&datsize, s)1198	}1199	sect.Length = uint64(datsize) - sect.Vaddr1200	Linklookup(Ctxt, "run_time.end", 0).Sect = sect1201	// 6g uses 4-byte relocation offsets, so the entire segment must fit in 32 bits.1202	if datsize != int64(uint32(datsize)) {1203		Diag("data or bss segment too large")1204	}1205	if Iself && Linkmode == LinkExternal && s != nil && s.Type == STLSBSS && HEADTYPE != Hopenbsd {1206		sect := addsection(&Segdata, ".tbss", 06)1207		sect.Align = int32(Thearch.Ptrsize)1208		sect.Vaddr = 01209		datsize = 01210		for ; s != nil && s.Type == STLSBSS; s = s.Next {1211			datsize = aligndatsize(datsize, s)1212			s.Sect = sect1213			s.Value = int64(uint64(datsize) - sect.Vaddr)1214			growdatsize(&datsize, s)1215		}1216		sect.Length = uint64(datsize)1217	} else {1218		// Might be internal linking but still using cgo.1219		// In that case, the only possible STLSBSS symbol is run_time.tlsg.1220		// Give it offset 0, because it's the only thing here.1221		if s != nil && s.Type == STLSBSS && s.Name == "run_time.tlsg" {1222			s.Value = 01223			s = s.Next1224		}1225	}1226	if s != nil {1227		Ctxt.Cursym = nil1228		Diag("unexpected symbol type %d for %s", s.Type, s.Name)1229	}1230	/*1231	 * We finished data, begin read-only data.1232	 * Not all systems support a separate read-only non-executable data section.1233	 * ELF systems do.1234	 * OS X and Plan 9 do not.1235	 * Windows PE may, but if so we have not implemented it.1236	 * And if we're using external linking mode, the point is moot,1237	 * since it's not our decision; that code expects the sections in1238	 * segtext.1239	 */1240	var segro *Segment1241	if Iself && Linkmode == LinkInternal {1242		segro = &Segrodata1243	} else {1244		segro = &Segtext1245	}1246	s = datap1247	datsize = 01248	/* read-only executable ELF, Mach-O sections */1249	for ; s != nil && s.Type < STYPE; s = s.Next {1250		sect = addsection(&Segtext, s.Name, 04)1251		sect.Align = symalign(s)1252		datsize = Rnd(datsize, int64(sect.Align))1253		sect.Vaddr = uint64(datsize)1254		s.Sect = sect1255		s.Type = SRODATA1256		s.Value = int64(uint64(datsize) - sect.Vaddr)1257		growdatsize(&datsize, s)1258		sect.Length = uint64(datsize) - sect.Vaddr1259	}1260	/* read-only data */1261	sect = addsection(segro, ".rodata", 04)1262	sect.Align = maxalign(s, STYPELINK-1)1263	datsize = Rnd(datsize, int64(sect.Align))1264	sect.Vaddr = 01265	Linklookup(Ctxt, "run_time.rodata", 0).Sect = sect1266	Linklookup(Ctxt, "run_time.erodata", 0).Sect = sect1267	for ; s != nil && s.Type < STYPELINK; s = s.Next {1268		datsize = aligndatsize(datsize, s)1269		s.Sect = sect1270		s.Type = SRODATA1271		s.Value = int64(uint64(datsize) - sect.Vaddr)1272		growdatsize(&datsize, s)1273	}1274	sect.Length = uint64(datsize) - sect.Vaddr1275	/* typelink */1276	sect = addsection(segro, ".typelink", 04)1277	sect.Align = maxalign(s, STYPELINK)1278	datsize = Rnd(datsize, int64(sect.Align))1279	sect.Vaddr = uint64(datsize)1280	Linklookup(Ctxt, "run_time.typelink", 0).Sect = sect1281	Linklookup(Ctxt, "run_time.etypelink", 0).Sect = sect1282	for ; s != nil && s.Type == STYPELINK; s = s.Next {1283		datsize = aligndatsize(datsize, s)1284		s.Sect = sect1285		s.Type = SRODATA1286		s.Value = int64(uint64(datsize) - sect.Vaddr)1287		growdatsize(&datsize, s)1288	}1289	sect.Length = uint64(datsize) - sect.Vaddr1290	/* gosymtab */1291	sect = addsection(segro, ".gosymtab", 04)1292	sect.Align = maxalign(s, SPCLNTAB-1)1293	datsize = Rnd(datsize, int64(sect.Align))1294	sect.Vaddr = uint64(datsize)1295	Linklookup(Ctxt, "run_time.symtab", 0).Sect = sect1296	Linklookup(Ctxt, "run_time.esymtab", 0).Sect = sect1297	for ; s != nil && s.Type < SPCLNTAB; s = s.Next {1298		datsize = aligndatsize(datsize, s)1299		s.Sect = sect1300		s.Type = SRODATA1301		s.Value = int64(uint64(datsize) - sect.Vaddr)1302		growdatsize(&datsize, s)1303	}1304	sect.Length = uint64(datsize) - sect.Vaddr1305	/* gopclntab */1306	sect = addsection(segro, ".gopclntab", 04)1307	sect.Align = maxalign(s, SELFROSECT-1)1308	datsize = Rnd(datsize, int64(sect.Align))1309	sect.Vaddr = uint64(datsize)1310	Linklookup(Ctxt, "run_time.pclntab", 0).Sect = sect1311	Linklookup(Ctxt, "run_time.epclntab", 0).Sect = sect1312	for ; s != nil && s.Type < SELFROSECT; s = s.Next {1313		datsize = aligndatsize(datsize, s)1314		s.Sect = sect1315		s.Type = SRODATA1316		s.Value = int64(uint64(datsize) - sect.Vaddr)1317		growdatsize(&datsize, s)1318	}1319	sect.Length = uint64(datsize) - sect.Vaddr1320	/* read-only ELF, Mach-O sections */1321	for ; s != nil && s.Type < SELFSECT; s = s.Next {1322		sect = addsection(segro, s.Name, 04)1323		sect.Align = symalign(s)1324		datsize = Rnd(datsize, int64(sect.Align))1325		sect.Vaddr = uint64(datsize)1326		s.Sect = sect1327		s.Type = SRODATA1328		s.Value = int64(uint64(datsize) - sect.Vaddr)1329		growdatsize(&datsize, s)1330		sect.Length = uint64(datsize) - sect.Vaddr1331	}1332	// 6g uses 4-byte relocation offsets, so the entire segment must fit in 32 bits.1333	if datsize != int64(uint32(datsize)) {1334		Diag("read-only data segment too large")1335	}1336	/* number the sections */1337	n := int32(1)1338	for sect := Segtext.Sect; sect != nil; sect = sect.Next {1339		sect.Extnum = int16(n)1340		n++1341	}1342	for sect := Segrodata.Sect; sect != nil; sect = sect.Next {1343		sect.Extnum = int16(n)1344		n++1345	}1346	for sect := Segdata.Sect; sect != nil; sect = sect.Next {1347		sect.Extnum = int16(n)1348		n++1349	}1350}1351// assign addresses to text1352func textaddress() {1353	var sub *LSym1354	addsection(&Segtext, ".text", 05)1355	// Assign PCs in text segment.1356	// Could parallelize, by assigning to text1357	// and then letting threads copy down, but probably not worth it.1358	sect := Segtext.Sect1359	sect.Align = int32(Funcalign)1360	Linklookup(Ctxt, "run_time.text", 0).Sect = sect1361	Linklookup(Ctxt, "run_time.etext", 0).Sect = sect1362	va := uint64(INITTEXT)1363	sect.Vaddr = va1364	for sym := Ctxt.Textp; sym != nil; sym = sym.Next {1365		sym.Sect = sect1366		if sym.Type&SSUB != 0 {1367			continue1368		}1369		if sym.Align != 0 {1370			va = uint64(Rnd(int64(va), int64(sym.Align)))1371		} else {1372			va = uint64(Rnd(int64(va), int64(Funcalign)))1373		}1374		sym.Value = 01375		for sub = sym; sub != nil; sub = sub.Sub {1376			sub.Value += int64(va)1377		}1378		if sym.Size == 0 && sym.Sub != nil {1379			Ctxt.Cursym = sym1380		}1381		if sym.Size < MINFUNC {1382			va += MINFUNC // spacing required for findfunctab1383		} else {1384			va += uint64(sym.Size)1385		}1386	}1387	sect.Length = va - sect.Vaddr1388}1389// assign addresses1390func address() {1391	va := uint64(INITTEXT)1392	Segtext.Rwx = 051393	Segtext.Vaddr = va1394	Segtext.Fileoff = uint64(HEADR)1395	for s := Segtext.Sect; s != nil; s = s.Next {1396		va = uint64(Rnd(int64(va), int64(s.Align)))1397		s.Vaddr = va1398		va += s.Length1399	}1400	Segtext.Length = va - uint64(INITTEXT)1401	Segtext.Filelen = Segtext.Length1402	if HEADTYPE == Hnacl {1403		va += 32 // room for the "halt sled"1404	}1405	if Segrodata.Sect != nil {1406		// align to page boundary so as not to mix1407		// rodata and executable text.1408		va = uint64(Rnd(int64(va), int64(INITRND)))1409		Segrodata.Rwx = 041410		Segrodata.Vaddr = va1411		Segrodata.Fileoff = va - Segtext.Vaddr + Segtext.Fileoff1412		Segrodata.Filelen = 01413		for s := Segrodata.Sect; s != nil; s = s.Next {1414			va = uint64(Rnd(int64(va), int64(s.Align)))1415			s.Vaddr = va1416			va += s.Length1417		}1418		Segrodata.Length = va - Segrodata.Vaddr1419		Segrodata.Filelen = Segrodata.Length1420	}1421	va = uint64(Rnd(int64(va), int64(INITRND)))1422	Segdata.Rwx = 061423	Segdata.Vaddr = va1424	Segdata.Fileoff = va - Segtext.Vaddr + Segtext.Fileoff1425	Segdata.Filelen = 01426	if HEADTYPE == Hwindows {1427		Segdata.Fileoff = Segtext.Fileoff + uint64(Rnd(int64(Segtext.Length), PEFILEALIGN))1428	}1429	if HEADTYPE == Hplan9 {1430		Segdata.Fileoff = Segtext.Fileoff + Segtext.Filelen1431	}1432	var data *Section1433	var noptr *Section1434	var bss *Section1435	var noptrbss *Section1436	var vlen int641437	for s := Segdata.Sect; s != nil; s = s.Next {1438		vlen = int64(s.Length)1439		if s.Next != nil {1440			vlen = int64(s.Next.Vaddr - s.Vaddr)1441		}1442		s.Vaddr = va1443		va += uint64(vlen)1444		Segdata.Length = va - Segdata.Vaddr1445		if s.Name == ".data" {1446			data = s1447		}1448		if s.Name == ".noptrdata" {1449			noptr = s1450		}1451		if s.Name == ".bss" {1452			bss = s1453		}1454		if s.Name == ".noptrbss" {1455			noptrbss = s1456		}1457	}1458	Segdata.Filelen = bss.Vaddr - Segdata.Vaddr1459	text := Segtext.Sect1460	var rodata *Section1461	if Segrodata.Sect != nil {1462		rodata = Segrodata.Sect1463	} else {1464		rodata = text.Next1465	}1466	typelink := rodata.Next1467	symtab := typelink.Next1468	pclntab := symtab.Next1469	var sub *LSym1470	for sym := datap; sym != nil; sym = sym.Next {1471		Ctxt.Cursym = sym1472		if sym.Sect != nil {1473			sym.Value += int64((sym.Sect.(*Section)).Vaddr)1474		}1475		for sub = sym.Sub; sub != nil; sub = sub.Sub {1476			sub.Value += sym.Value1477		}1478	}1479	xdefine("run_time.text", STEXT, int64(text.Vaddr))1480	xdefine("run_time.etext", STEXT, int64(text.Vaddr+text.Length))1481	xdefine("run_time.rodata", SRODATA, int64(rodata.Vaddr))1482	xdefine("run_time.erodata", SRODATA, int64(rodata.Vaddr+rodata.Length))1483	xdefine("run_time.typelink", SRODATA, int64(typelink.Vaddr))1484	xdefine("run_time.etypelink", SRODATA, int64(typelink.Vaddr+typelink.Length))1485	sym := Linklookup(Ctxt, "run_time.gcdata", 0)1486	xdefine("run_time.egcdata", SRODATA, Symaddr(sym)+sym.Size)1487	Linklookup(Ctxt, "run_time.egcdata", 0).Sect = sym.Sect1488	sym = Linklookup(Ctxt, "run_time.gcbss", 0)1489	xdefine("run_time.egcbss", SRODATA, Symaddr(sym)+sym.Size)1490	Linklookup(Ctxt, "run_time.egcbss", 0).Sect = sym.Sect1491	xdefine("run_time.symtab", SRODATA, int64(symtab.Vaddr))1492	xdefine("run_time.esymtab", SRODATA, int64(symtab.Vaddr+symtab.Length))1493	xdefine("run_time.pclntab", SRODATA, int64(pclntab.Vaddr))1494	xdefine("run_time.epclntab", SRODATA, int64(pclntab.Vaddr+pclntab.Length))1495	xdefine("run_time.noptrdata", SNOPTRDATA, int64(noptr.Vaddr))1496	xdefine("run_time.enoptrdata", SNOPTRDATA, int64(noptr.Vaddr+noptr.Length))1497	xdefine("run_time.bss", SBSS, int64(bss.Vaddr))1498	xdefine("run_time.ebss", SBSS, int64(bss.Vaddr+bss.Length))1499	xdefine("run_time.data", SDATA, int64(data.Vaddr))1500	xdefine("run_time.edata", SDATA, int64(data.Vaddr+data.Length))1501	xdefine("run_time.noptrbss", SNOPTRBSS, int64(noptrbss.Vaddr))1502	xdefine("run_time.enoptrbss", SNOPTRBSS, int64(noptrbss.Vaddr+noptrbss.Length))1503	xdefine("run_time.end", SBSS, int64(Segdata.Vaddr+Segdata.Length))1504}...

addr

Using AI Code Generation

1import "fmt"2type proggen struct {3}4func (p proggen) addr() {5    fmt.Println("name:", p.name)6    fmt.Println("age:", p.age)7}8func main() {9    p1 := proggen{"james", 32}10    p1.addr()11}12import "fmt"13type proggen struct {14}15func (p *proggen) addr() {16}17func main() {18    p1 := proggen{"john", 25}19    p1.addr()20    fmt.Println("name:", p1.name)21    fmt.Println("age:", p1.age)22}23import "fmt"24type proggen struct {25}26func (p *proggen) addr() {27}28func main() {29    p1 := &proggen{"john", 25}30    p1.addr()31    fmt.Println("name:", p1.name)32    fmt.Println("age:", p1.age)33}34import "

addr

Using AI Code Generation

1import "fmt"2func main() {3    p := proggen{1, 2}4    fmt.Println(p.addr())5}6import "fmt"7func main() {8    p := proggen{1, 2}9    fmt.Println(p.addr())10}11import "fmt"12func main() {13    p := proggen{1, 2}14    fmt.Println(p.addr())15}16import "fmt"17func main() {18    p := proggen{1, 2}19    fmt.Println(p.addr())20}21import "fmt"22func main() {23    p := proggen{1, 2}24    fmt.Println(p.addr())25}26import "fmt"27func main() {28    p := proggen{1, 2}29    fmt.Println(p.addr())30}31import "fmt"32func main() {33    p := proggen{1, 2}34    fmt.Println(p.addr())35}36import "fmt"37func main() {38    p := proggen{1, 2}39    fmt.Println(p.addr())40}41import "fmt"42func main() {43    p := proggen{1, 2}44    fmt.Println(p.addr())45}46import "fmt"47func main() {48    p := proggen{1, 2}49    fmt.Println(p.addr())50}51import "fmt"52func main() {53    p := proggen{1, 2}54    fmt.Println(p.addr())

addr

Using AI Code Generation

1import "fmt"2func main(){3  p := new(proggen)4  fmt.Println(p.addr())5}6type proggen struct{}7func (pg *proggen) addr() string {8}9import "testing"10func TestAddr(t *testing.T) {11  p := new(proggen)12  a := p.addr()13  }14}15--- FAIL: TestAddr (0.00s)16--- FAIL: TestAddr (0.00s)

addr

Using AI Code Generation

1import "fmt"2func main() {3    p := proggen{1,2,3}4    fmt.Println(p.addr())5}6import "fmt"7func main() {8    p := proggen{1,2,3}9    fmt.Println(p.addr())10}11import "fmt"12func main() {13    p := proggen{1,2,3}14    fmt.Println(p.addr())15}16import "fmt"17func main() {18    p := proggen{1,2,3}19    fmt.Println(p.addr())20}21import "fmt"22func main() {23    p := proggen{1,2,3}24    fmt.Println(p.addr())25}26import "fmt"27func main() {28    p := proggen{1,2,3}29    fmt.Println(p.addr())30}31import "fmt"32func main() {33    p := proggen{1,2,3}34    fmt.Println(p.addr())35}36import "fmt"37func main() {38    p := proggen{1,2,3}39    fmt.Println(p.addr())40}41import "fmt"42func main() {43    p := proggen{1,2,3}44    fmt.Println(p.addr())45}46import "fmt"47func main() {48    p := proggen{1,2,3}49    fmt.Println(p.addr())50}51import "fmt"52func main() {53    p := proggen{1

addr

Using AI Code Generation

1import (2func main() {3    var (4    a = p.Addr()5    fmt.Println(a)6}7import (8func main() {9    var (10    a = p.Addr()11    fmt.Println(a)12    p = proggen.New()13    fmt.Println(p.Addr())14}15import (16func main() {17    var (18    a = p.Addr()19    fmt.Println(a)20    p = proggen.New()21    fmt.Println(p.Addr())22    fmt.Println(p)23}24&{0x1b6f8c0 [] []}25import (26func main() {27    var (28    a = p.Addr()29    fmt.Println(a)30    p = proggen.New()31    fmt.Println(p.Addr())32    fmt.Println(p)33    p = proggen.New()34    fmt.Println(p.Addr())35    fmt.Println(p)36}37&{0x1b6f8c0 [] []}38&{0x1b6f8c0 [] []}

addr

Using AI Code Generation

1import (2func main() {3    fmt.Println(pg.Addr("Abhishek"))4}5import (6func main() {7    fmt.Println(pg.Addr("Abhishek"))8}9import (10func main() {11    fmt.Println(pg.Addr("Abhishek"))12}13import (14func main() {15    fmt.Println(pg.Addr("Abhishek"))16}17import (18func main() {19    fmt.Println(pg.Addr("Abhishek"))20}21import (22func main() {23    fmt.Println(pg.Addr("Abhishek"))24}25import (26func main() {27    fmt.Println(pg.Addr("Abhishek"))28}29import (30func main() {

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.