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8167184: [s390] Extend relocations for pc-relative instructions

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Reviewed-by: kvn
This commit is contained in:
Goetz Lindenmaier 2016-10-05 15:20:35 +02:00
parent da8430daf1
commit a5eb94ccef
5 changed files with 61 additions and 5 deletions
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8
hotspot/src/share/vm/code/codeBlob.hpp
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@ -30,6 +30,7 @@
#include "compiler/oopMap.hpp"
#include "runtime/frame.hpp"
#include "runtime/handles.hpp"
#include "utilities/macros.hpp"
// CodeBlob Types
// Used in the CodeCache to assign CodeBlobs to different CodeHeaps
@ -95,6 +96,7 @@ protected:
bool _caller_must_gc_arguments;
CodeStrings _strings;
const char* _name;
S390_ONLY(int _ctable_offset;)
CodeBlob(const char* name, CompilerType type, const CodeBlobLayout& layout, int frame_complete_offset, int frame_size, ImmutableOopMapSet* oop_maps, bool caller_must_gc_arguments);
CodeBlob(const char* name, CompilerType type, const CodeBlobLayout& layout, CodeBuffer* cb, int frame_complete_offset, int frame_size, OopMapSet* oop_maps, bool caller_must_gc_arguments);
@ -140,6 +142,12 @@ public:
address code_end() const { return _code_end; }
address data_end() const { return _data_end; }
// This field holds the beginning of the const section in the old code buffer.
// It is needed to fix relocations of pc-relative loads when resizing the
// the constant pool or moving it.
S390_ONLY(address ctable_begin() const { return header_begin() + _ctable_offset; })
void set_ctable_begin(address ctable) { S390_ONLY(_ctable_offset = ctable - header_begin();) }
// Sizes
int size() const { return _size; }
int header_size() const { return _header_size; }