Vendor import of lld trunk r307894:vendor/lld/lld-trunk-r307894

https://llvm.org/svn/llvm-project/lld/trunk@307894

1 files changed, 18 insertions, 0 deletions

diff --git a/COFF/Chunks.h b/COFF/Chunks.h
index 6e1bf94da1a5..fc3f5d0df4b6 100644
--- a/COFF/Chunks.h
+++ b/COFF/Chunks.h
@@ -151,6 +151,8 @@ public:
                    uint64_t P) const;
   void applyRelARM(uint8_t *Off, uint16_t Type, OutputSection *OS, uint64_t S,
                    uint64_t P) const;
+  void applyRelARM64(uint8_t *Off, uint16_t Type, OutputSection *OS, uint64_t S,
+                     uint64_t P) const;
 
   // Called if the garbage collector decides to not include this chunk
   // in a final output. It's supposed to print out a log message to stdout.
@@ -264,6 +266,12 @@ static const uint8_t ImportThunkARM[] = {
     0xdc, 0xf8, 0x00, 0xf0, // ldr.w pc, [ip]
 };
 
+static const uint8_t ImportThunkARM64[] = {
+    0x10, 0x00, 0x00, 0x90, // adrp x16, #0
+    0x10, 0x02, 0x40, 0xf9, // ldr  x16, [x16]
+    0x00, 0x02, 0x1f, 0xd6, // br   x16
+};
+
 // Windows-specific.
 // A chunk for DLL import jump table entry. In a final output, it's
 // contents will be a JMP instruction to some __imp_ symbol.
@@ -299,6 +307,16 @@ private:
   Defined *ImpSymbol;
 };
 
+class ImportThunkChunkARM64 : public Chunk {
+public:
+  explicit ImportThunkChunkARM64(Defined *S) : ImpSymbol(S) {}
+  size_t getSize() const override { return sizeof(ImportThunkARM64); }
+  void writeTo(uint8_t *Buf) const override;
+
+private:
+  Defined *ImpSymbol;
+};
+
 // Windows-specific.
 // See comments for DefinedLocalImport class.
 class LocalImportChunk : public Chunk {