Index: contrib/llvm-project/lld/ELF/Arch/AArch64.cpp
===================================================================
--- contrib/llvm-project/lld/ELF/Arch/AArch64.cpp
+++ contrib/llvm-project/lld/ELF/Arch/AArch64.cpp
@@ -199,6 +199,13 @@
   switch (type) {
   case R_AARCH64_TLSDESC:
     return read64(buf + 8);
+  case R_AARCH64_NONE:
+    return 0;
+  case R_AARCH64_PREL32:
+    return SignExtend64<32>(read32(buf));
+  case R_AARCH64_ABS64:
+  case R_AARCH64_PREL64:
+    return read64(buf);
   default:
     internalLinkerError(getErrorLocation(buf),
                         "cannot read addend for relocation " + toString(type));
Index: contrib/llvm-project/lld/ELF/Arch/PPC.cpp
===================================================================
--- contrib/llvm-project/lld/ELF/Arch/PPC.cpp
+++ contrib/llvm-project/lld/ELF/Arch/PPC.cpp
@@ -27,6 +27,7 @@
   RelExpr getRelExpr(RelType type, const Symbol &s,
                      const uint8_t *loc) const override;
   RelType getDynRel(RelType type) const override;
+  int64_t getImplicitAddend(const uint8_t *buf, RelType type) const override;
   void writeGotHeader(uint8_t *buf) const override;
   void writePltHeader(uint8_t *buf) const override {
     llvm_unreachable("should call writePPC32GlinkSection() instead");
@@ -274,6 +275,20 @@
   return R_PPC_NONE;
 }
 
+int64_t PPC::getImplicitAddend(const uint8_t *buf, RelType type) const {
+  switch (type) {
+  case R_PPC_NONE:
+    return 0;
+  case R_PPC_ADDR32:
+  case R_PPC_REL32:
+    return SignExtend64<32>(read32(buf));
+  default:
+    internalLinkerError(getErrorLocation(buf),
+                        "cannot read addend for relocation " + toString(type));
+    return 0;
+  }
+}
+
 static std::pair<RelType, uint64_t> fromDTPREL(RelType type, uint64_t val) {
   uint64_t dtpBiasedVal = val - 0x8000;
   switch (type) {
Index: contrib/llvm-project/lld/ELF/Arch/PPC64.cpp
===================================================================
--- contrib/llvm-project/lld/ELF/Arch/PPC64.cpp
+++ contrib/llvm-project/lld/ELF/Arch/PPC64.cpp
@@ -369,6 +369,7 @@
   RelExpr getRelExpr(RelType type, const Symbol &s,
                      const uint8_t *loc) const override;
   RelType getDynRel(RelType type) const override;
+  int64_t getImplicitAddend(const uint8_t *buf, RelType type) const override;
   void writePltHeader(uint8_t *buf) const override;
   void writePlt(uint8_t *buf, const Symbol &sym,
                 uint64_t pltEntryAddr) const override;
@@ -1067,6 +1068,22 @@
   return R_PPC64_NONE;
 }
 
+int64_t PPC64::getImplicitAddend(const uint8_t *buf, RelType type) const {
+  switch (type) {
+  case R_PPC64_NONE:
+    return 0;
+  case R_PPC64_REL32:
+    return SignExtend64<32>(read32(buf));
+  case R_PPC64_ADDR64:
+  case R_PPC64_REL64:
+    return read64(buf);
+  default:
+    internalLinkerError(getErrorLocation(buf),
+                        "cannot read addend for relocation " + toString(type));
+    return 0;
+  }
+}
+
 void PPC64::writeGotHeader(uint8_t *buf) const {
   write64(buf, getPPC64TocBase());
 }