COFF: ARM: Fix relocations to thumb code.
Windows ARM is the thumb ARM environment, and pointers to thumb code
needs to have its LSB set. When we apply relocations, we need to
adjust the LSB if it points to an executable section.
llvm-svn: 243560
diff --git a/lld/COFF/Chunks.cpp b/lld/COFF/Chunks.cpp
index a68e258..4e41f2f 100644
--- a/lld/COFF/Chunks.cpp
+++ b/lld/COFF/Chunks.cpp
@@ -105,6 +105,9 @@
void SectionChunk::applyRelARM(uint8_t *Off, uint16_t Type, Defined *Sym,
uint64_t P) {
uint64_t S = Sym->getRVA();
+ // Pointer to thumb code must have the LSB set.
+ if (Sym->isExecutable())
+ S |= 1;
switch (Type) {
case IMAGE_REL_ARM_ADDR32: add32(Off, S + Config->ImageBase); break;
case IMAGE_REL_ARM_ADDR32NB: add32(Off, S); break;
