C++ (Cpp) CodeBlob::as_nmethod_or_null示例

void NativeMovConstReg32::set_data(intptr_t x) {
  set_long_at(sethi_offset, set_data32_sethi(  long_at(sethi_offset), x));
  set_long_at(add_offset,   set_data32_simm13( long_at(add_offset),   x));

  // also store the value into an oop_Relocation cell, if any
  CodeBlob* cb = CodeCache::find_blob(instruction_address());
  nmethod*  nm = cb ? cb->as_nmethod_or_null() : NULL;
  if (nm != NULL) {
    RelocIterator iter(nm, instruction_address(), next_instruction_address());
    oop* oop_addr = NULL;
    Metadata** metadata_addr = NULL;
    while (iter.next()) {
      if (iter.type() == relocInfo::oop_type) {
        oop_Relocation *r = iter.oop_reloc();
        if (oop_addr == NULL) {
          oop_addr = r->oop_addr();
          *oop_addr = cast_to_oop(x);
        } else {
          assert(oop_addr == r->oop_addr(), "must be only one set-oop here");
        }
      }
      if (iter.type() == relocInfo::metadata_type) {
        metadata_Relocation *r = iter.metadata_reloc();
        if (metadata_addr == NULL) {
          metadata_addr = r->metadata_addr();
          *metadata_addr = (Metadata*)x;
        } else {
          assert(metadata_addr == r->metadata_addr(), "must be only one set-metadata here");
        }
      }
    }
  }
}

示例#2

显示文件

文件： debug.cpp 项目： wei-tang/JVM

extern "C" void disnm(intptr_t p) {
  Command c("disnm");
  CodeBlob* cb = CodeCache::find_blob((address) p);
  nmethod* nm = cb->as_nmethod_or_null();
  if (nm) {
    nm->print();
    Disassembler::decode(nm);
  } else {
    cb->print();
    Disassembler::decode(cb);
  }
}