[riscv] Port 3904233: Remove unused RelocInfo::Mode::RUNTIME_ENTRY

Port commit 3f998527

Change-Id: Ic82f9d08fbc6c6df524e0361141c9a5d22e8924e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3905856
Auto-Submit: Yahan Lu <yahan@iscas.ac.cn>
Reviewed-by: ji qiu <qiuji@iscas.ac.cn>
Commit-Queue: ji qiu <qiuji@iscas.ac.cn>
Cr-Commit-Position: refs/heads/main@{#83352}

src/codegen/riscv/assembler-riscv-inl.h

@@ -65,8 +65,7 @@ void RelocInfo::apply(intptr_t delta) {
 }
 
 Address RelocInfo::target_address() {
-  DCHECK(IsCodeTargetMode(rmode_) || IsRuntimeEntry(rmode_) ||
-         IsWasmCall(rmode_));
+  DCHECK(IsCodeTargetMode(rmode_) || IsWasmCall(rmode_));
   return Assembler::target_address_at(pc_, constant_pool_);
 }
 
@@ -247,19 +246,6 @@ Handle<Code> Assembler::relative_code_target_object_handle_at(
 
 Builtin RelocInfo::target_builtin_at(Assembler* origin) { UNREACHABLE(); }
 
-Address RelocInfo::target_runtime_entry(Assembler* origin) {
-  DCHECK(IsRuntimeEntry(rmode_));
-  return target_address();
-}
-
-void RelocInfo::set_target_runtime_entry(Address target,
-                                         WriteBarrierMode write_barrier_mode,
-                                         ICacheFlushMode icache_flush_mode) {
-  DCHECK(IsRuntimeEntry(rmode_));
-  if (target_address() != target)
-    set_target_address(target, write_barrier_mode, icache_flush_mode);
-}
-
 Address RelocInfo::target_off_heap_target() {
   DCHECK(IsOffHeapTarget(rmode_));
   return Assembler::target_address_at(pc_, constant_pool_);
@@ -267,9 +253,8 @@ Address RelocInfo::target_off_heap_target() {
 
 void RelocInfo::WipeOut() {
   DCHECK(IsFullEmbeddedObject(rmode_) || IsCodeTarget(rmode_) ||
-         IsRuntimeEntry(rmode_) || IsExternalReference(rmode_) ||
-         IsInternalReference(rmode_) || IsInternalReferenceEncoded(rmode_) ||
-         IsOffHeapTarget(rmode_));
+         IsExternalReference(rmode_) || IsInternalReference(rmode_) ||
+         IsInternalReferenceEncoded(rmode_) || IsOffHeapTarget(rmode_));
   if (IsInternalReference(rmode_)) {
     Memory<Address>(pc_) = kNullAddress;
   } else if (IsInternalReferenceEncoded(rmode_)) {

src/codegen/riscv/assembler-riscv.cc

@@ -132,8 +132,10 @@ Register ToRegister(int num) {
 
 const int RelocInfo::kApplyMask =
     RelocInfo::ModeMask(RelocInfo::INTERNAL_REFERENCE) |
+    RelocInfo::ModeMask(RelocInfo::NEAR_BUILTIN_ENTRY) |
     RelocInfo::ModeMask(RelocInfo::INTERNAL_REFERENCE_ENCODED) |
-    RelocInfo::ModeMask(RelocInfo::RELATIVE_CODE_TARGET);
+    RelocInfo::ModeMask(RelocInfo::RELATIVE_CODE_TARGET) |
+    RelocInfo::ModeMask(RelocInfo::CODE_TARGET);
 
 bool RelocInfo::IsCodedSpecially() {
   // The deserializer needs to know whether a pointer is specially coded.  Being

src/codegen/riscv/macro-assembler-riscv.cc

@@ -4392,7 +4392,7 @@ void TurboAssembler::CallBuiltin(Builtin builtin) {
       break;
     }
     case BuiltinCallJumpMode::kPCRelative:
-      Call(BuiltinEntry(builtin), RelocInfo::RUNTIME_ENTRY);
+      Call(BuiltinEntry(builtin), RelocInfo::NEAR_BUILTIN_ENTRY);
       break;
     case BuiltinCallJumpMode::kIndirect: {
       LoadEntryFromBuiltin(builtin, t6);
@@ -4426,7 +4426,7 @@ void TurboAssembler::TailCallBuiltin(Builtin builtin) {
       break;
     }
     case BuiltinCallJumpMode::kPCRelative:
-      Jump(BuiltinEntry(builtin), RelocInfo::RUNTIME_ENTRY);
+      Jump(BuiltinEntry(builtin), RelocInfo::NEAR_BUILTIN_ENTRY);
       break;
     case BuiltinCallJumpMode::kIndirect: {
       LoadEntryFromBuiltin(builtin, t6);