func adddynsym(ctxt *ld.Link, s *ld.LSym) {
if s.Dynid >= 0 {
return
}
if ld.Iself {
s.Dynid = int32(ld.Nelfsym)
ld.Nelfsym++
d := ld.Linklookup(ctxt, ".dynsym", 0)
name := s.Extname
ld.Adduint32(ctxt, d, uint32(ld.Addstring(ld.Linklookup(ctxt, ".dynstr", 0), name)))
/* type */
t := ld.STB_GLOBAL << 4
if s.Cgoexport != 0 && s.Type&ld.SMASK == ld.STEXT {
t |= ld.STT_FUNC
} else {
t |= ld.STT_OBJECT
}
ld.Adduint8(ctxt, d, uint8(t))
/* reserved */
ld.Adduint8(ctxt, d, 0)
/* section where symbol is defined */
if s.Type == ld.SDYNIMPORT {
ld.Adduint16(ctxt, d, ld.SHN_UNDEF)
} else {
ld.Adduint16(ctxt, d, 1)
}
/* value */
if s.Type == ld.SDYNIMPORT {
ld.Adduint64(ctxt, d, 0)
} else {
ld.Addaddr(ctxt, d, s)
}
/* size of object */
ld.Adduint64(ctxt, d, uint64(s.Size))
if s.Cgoexport&ld.CgoExportDynamic == 0 && s.Dynimplib != "" && needlib(s.Dynimplib) != 0 {
ld.Elfwritedynent(ld.Linklookup(ctxt, ".dynamic", 0), ld.DT_NEEDED, uint64(ld.Addstring(ld.Linklookup(ctxt, ".dynstr", 0), s.Dynimplib)))
}
} else if ld.HEADTYPE == ld.Hdarwin {
ld.Diag("adddynsym: missed symbol %s (%s)", s.Name, s.Extname)
} else if ld.HEADTYPE == ld.Hwindows {
} else // already taken care of
{
ld.Diag("adddynsym: unsupported binary format")
}
}
func adddynsym(ctxt *ld.Link, s *ld.LSym) {
if s.Dynid >= 0 {
return
}
if ld.Iself {
s.Dynid = int32(ld.Nelfsym)
ld.Nelfsym++
d := ld.Linklookup(ctxt, ".dynsym", 0)
/* name */
name := s.Extname
ld.Adduint32(ctxt, d, uint32(ld.Addstring(ld.Linklookup(ctxt, ".dynstr", 0), name)))
/* value */
if s.Type == ld.SDYNIMPORT {
ld.Adduint32(ctxt, d, 0)
} else {
ld.Addaddr(ctxt, d, s)
}
/* size */
ld.Adduint32(ctxt, d, 0)
/* type */
t := ld.STB_GLOBAL << 4
if s.Cgoexport != 0 && s.Type&ld.SMASK == ld.STEXT {
t |= ld.STT_FUNC
} else {
t |= ld.STT_OBJECT
}
ld.Adduint8(ctxt, d, uint8(t))
ld.Adduint8(ctxt, d, 0)
/* shndx */
if s.Type == ld.SDYNIMPORT {
ld.Adduint16(ctxt, d, ld.SHN_UNDEF)
} else {
ld.Adduint16(ctxt, d, 1)
}
} else if ld.HEADTYPE == ld.Hdarwin {
ld.Diag("adddynsym: missed symbol %s (%s)", s.Name, s.Extname)
} else if ld.HEADTYPE == ld.Hwindows {
} else // already taken care of
{
ld.Diag("adddynsym: unsupported binary format")
}
}
func adddynsym(ctxt *ld.Link, s *ld.LSym) {
if s.Dynid >= 0 {
return
}
if ld.Iself {
s.Dynid = int32(ld.Nelfsym)
ld.Nelfsym++
d := ld.Linklookup(ctxt, ".dynsym", 0)
/* name */
name := s.Extname
ld.Adduint32(ctxt, d, uint32(ld.Addstring(ld.Linklookup(ctxt, ".dynstr", 0), name)))
/* value */
if s.Type == ld.SDYNIMPORT {
ld.Adduint32(ctxt, d, 0)
} else {
ld.Addaddr(ctxt, d, s)
}
/* size */
ld.Adduint32(ctxt, d, 0)
/* type */
t := ld.STB_GLOBAL << 4
if (s.Cgoexport&ld.CgoExportDynamic != 0) && s.Type&ld.SMASK == ld.STEXT {
t |= ld.STT_FUNC
} else {
t |= ld.STT_OBJECT
}
ld.Adduint8(ctxt, d, uint8(t))
ld.Adduint8(ctxt, d, 0)
/* shndx */
if s.Type == ld.SDYNIMPORT {
ld.Adduint16(ctxt, d, ld.SHN_UNDEF)
} else {
ld.Adduint16(ctxt, d, 1)
}
} else {
ld.Diag("adddynsym: unsupported binary format")
}
}
func adddynsym(ctxt *ld.Link, s *ld.LSym) {
if s.Dynid >= 0 {
return
}
if ld.Iself {
s.Dynid = int32(ld.Nelfsym)
ld.Nelfsym++
d := ld.Linklookup(ctxt, ".dynsym", 0)
name := s.Extname
ld.Adduint32(ctxt, d, uint32(ld.Addstring(ld.Linklookup(ctxt, ".dynstr", 0), name)))
/* type */
t := ld.STB_GLOBAL << 4
if s.Cgoexport != 0 && s.Type&ld.SMASK == ld.STEXT {
t |= ld.STT_FUNC
} else {
t |= ld.STT_OBJECT
}
ld.Adduint8(ctxt, d, uint8(t))
/* reserved */
ld.Adduint8(ctxt, d, 0)
/* section where symbol is defined */
if s.Type == ld.SDYNIMPORT {
ld.Adduint16(ctxt, d, ld.SHN_UNDEF)
} else {
ld.Adduint16(ctxt, d, 1)
}
/* value */
if s.Type == ld.SDYNIMPORT {
ld.Adduint64(ctxt, d, 0)
} else {
ld.Addaddr(ctxt, d, s)
}
/* size of object */
ld.Adduint64(ctxt, d, uint64(s.Size))
} else {
ld.Diag("adddynsym: unsupported binary format")
}
}
func gentext() {
if !ld.DynlinkingGo() {
return
}
addmoduledata := ld.Linklookup(ld.Ctxt, "runtime.addmoduledata", 0)
if addmoduledata.Type == ld.STEXT {
// we're linking a module containing the runtime -> no need for
// an init function
return
}
addmoduledata.Reachable = true
initfunc := ld.Linklookup(ld.Ctxt, "go.link.addmoduledata", 0)
initfunc.Type = ld.STEXT
initfunc.Local = true
initfunc.Reachable = true
o := func(op ...uint8) {
for _, op1 := range op {
ld.Adduint8(ld.Ctxt, initfunc, op1)
}
}
// 0000000000000000 <local.dso_init>:
// 0: 48 8d 3d 00 00 00 00 lea 0x0(%rip),%rdi # 7 <local.dso_init+0x7>
// 3: R_X86_64_PC32 runtime.firstmoduledata-0x4
o(0x48, 0x8d, 0x3d)
ld.Addpcrelplus(ld.Ctxt, initfunc, ld.Linklookup(ld.Ctxt, "runtime.firstmoduledata", 0), 0)
// 7: e8 00 00 00 00 callq c <local.dso_init+0xc>
// 8: R_X86_64_PLT32 runtime.addmoduledata-0x4
o(0xe8)
Addcall(ld.Ctxt, initfunc, addmoduledata)
// c: c3 retq
o(0xc3)
if ld.Ctxt.Etextp != nil {
ld.Ctxt.Etextp.Next = initfunc
} else {
ld.Ctxt.Textp = initfunc
}
ld.Ctxt.Etextp = initfunc
initarray_entry := ld.Linklookup(ld.Ctxt, "go.link.addmoduledatainit", 0)
initarray_entry.Reachable = true
initarray_entry.Local = true
initarray_entry.Type = ld.SINITARR
ld.Addaddr(ld.Ctxt, initarray_entry, initfunc)
}