archive/jdk
1
0
Fork 0
mirror of https://github.com/openjdk/jdk.git synced 2025-08-28 07:14:30 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

8147461: Use byte offsets for vtable start and vtable length offsets

Browse source 
Reviewed-by: cjplummer, coleenp, dnsimon
This commit is contained in:
Mikael Gerdin 2016-01-27 14:50:56 +01:00
parent 1fdb299974
commit 1163c0a2cb
21 changed files with 73 additions and 77 deletions
Download patch file Download diff file Expand all files Collapse all files

6
hotspot/src/share/vm/oops/instanceKlass.hpp
View file

@ -949,10 +949,10 @@ public:
virtual void collect_statistics(KlassSizeStats *sz) const;
#endif
static int vtable_start_offset() { return header_size(); }
static int vtable_length_offset() { return offset_of(InstanceKlass, _vtable_len) / HeapWordSize; }
static ByteSize vtable_start_offset() { return in_ByteSize(header_size() * wordSize); }
static ByteSize vtable_length_offset() { return byte_offset_of(InstanceKlass, _vtable_len); }
intptr_t* start_of_vtable() const { return ((intptr_t*)this) + vtable_start_offset(); }
intptr_t* start_of_vtable() const { return (intptr_t*) ((address)this + in_bytes(vtable_start_offset())); }
intptr_t* start_of_itable() const { return start_of_vtable() + vtable_length(); }
int itable_offset_in_words() const { return start_of_itable() - (intptr_t*)this; }