Reset input section pointers to null on each linker invocation.

Previously, if you invoke lld's `main` more than once in the same process,
the second invocation could fail or produce a wrong result due to a stale
pointer values of the previous run.

Differential Revision: https://reviews.llvm.org/D52506

llvm-svn: 343009

1 files changed, 3 insertions, 3 deletions

diff --git a/lld/ELF/OutputSections.cpp b/lld/ELF/OutputSections.cpp
index 8253b18b486..0e8e406b91d 100644
--- a/lld/ELF/OutputSections.cpp
+++ b/lld/ELF/OutputSections.cpp
@@ -270,13 +270,13 @@ static void finalizeShtGroup(OutputSection *OS,
 
   // sh_link field for SHT_GROUP sections should contain the section index of
   // the symbol table.
-  OS->Link = InX::SymTab->getParent()->SectionIndex;
+  OS->Link = In.SymTab->getParent()->SectionIndex;
 
   // sh_info then contain index of an entry in symbol table section which
   // provides signature of the section group.
   ObjFile<ELFT> *Obj = Section->getFile<ELFT>();
   ArrayRef<Symbol *> Symbols = Obj->getSymbols();
-  OS->Info = InX::SymTab->getSymbolIndex(Symbols[Section->Info]);
+  OS->Info = In.SymTab->getSymbolIndex(Symbols[Section->Info]);
 }
 
 template <class ELFT> void OutputSection::finalize() {
@@ -308,7 +308,7 @@ template <class ELFT> void OutputSection::finalize() {
   if (isa<SyntheticSection>(First))
     return;
 
-  Link = InX::SymTab->getParent()->SectionIndex;
+  Link = In.SymTab->getParent()->SectionIndex;
   // sh_info for SHT_REL[A] sections should contain the section header index of
   // the section to which the relocation applies.
   InputSectionBase *S = First->getRelocatedSection();