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Create an instance of Target after reading all input files. NFC.

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This change itself doesn't mean anything, but it helps D59780 because
in patch, we don't know whether we need to create a CET-aware PLT or
not until we read all input files.

llvm-svn: 357194
This commit is contained in:
Rui Ueyama
2019-03-28 17:38:53 +00:00
parent 8521ba37d7
commit f28825bc06
5 changed files with 26 additions and 19 deletions
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25
lld/ELF/Writer.cpp
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@@ -214,17 +214,24 @@ void elf::addReservedSymbols() {
// the .got section.
// We do not allow _GLOBAL_OFFSET_TABLE_ to be defined by input objects as the
// correctness of some relocations depends on its value.
StringRef GotTableSymName =
StringRef GotSymName =
(Config->EMachine == EM_PPC64) ? ".TOC." : "_GLOBAL_OFFSET_TABLE_";
if (Symbol *S = Symtab->find(GotTableSymName)) {
if (S->isDefined())
if (Symbol *S = Symtab->find(GotSymName)) {
if (S->isDefined()) {
error(toString(S->File) + " cannot redefine linker defined symbol '" +
GotTableSymName + "'");
else
ElfSym::GlobalOffsetTable = Symtab->addDefined(
GotTableSymName, STV_HIDDEN, STT_NOTYPE, Target->GotBaseSymOff,
/*Size=*/0, STB_GLOBAL, Out::ElfHeader,
/*File=*/nullptr);
GotSymName + "'");
return;
}
uint64_t GotOff = 0;
if (Config->EMachine == EM_PPC || Config->EMachine == EM_PPC64)
GotOff = 0x8000;
ElfSym::GlobalOffsetTable =
Symtab->addDefined(GotSymName, STV_HIDDEN, STT_NOTYPE, GotOff,
/*Size=*/0, STB_GLOBAL, Out::ElfHeader,
/*File=*/nullptr);
}
// __ehdr_start is the location of ELF file headers. Note that we define