1.1 --- a/src/share/vm/runtime/virtualspace.hpp Mon Mar 23 10:42:20 2009 -0400
1.2 +++ b/src/share/vm/runtime/virtualspace.hpp Wed Mar 25 14:19:20 2009 -0400
1.3 @@ -32,12 +32,15 @@
1.4 size_t _noaccess_prefix;
1.5 size_t _alignment;
1.6 bool _special;
1.7 + bool _executable;
1.8
1.9 // ReservedSpace
1.10 - ReservedSpace(char* base, size_t size, size_t alignment, bool special);
1.11 + ReservedSpace(char* base, size_t size, size_t alignment, bool special,
1.12 + bool executable);
1.13 void initialize(size_t size, size_t alignment, bool large,
1.14 char* requested_address,
1.15 - const size_t noaccess_prefix);
1.16 + const size_t noaccess_prefix,
1.17 + bool executable);
1.18
1.19 // Release parts of an already-reserved memory region [addr, addr + len) to
1.20 // get a new region that has "compound alignment." Return the start of the
1.21 @@ -75,16 +78,16 @@
1.22 const size_t suffix_size, const size_t suffix_align,
1.23 char* requested_address,
1.24 const size_t noaccess_prefix = 0);
1.25 + ReservedSpace(size_t size, size_t alignment, bool large, bool executable);
1.26
1.27 // Accessors
1.28 - char* base() const { return _base; }
1.29 - size_t size() const { return _size; }
1.30 - size_t alignment() const { return _alignment; }
1.31 - bool special() const { return _special; }
1.32 -
1.33 - size_t noaccess_prefix() const { return _noaccess_prefix; }
1.34 -
1.35 - bool is_reserved() const { return _base != NULL; }
1.36 + char* base() const { return _base; }
1.37 + size_t size() const { return _size; }
1.38 + size_t alignment() const { return _alignment; }
1.39 + bool special() const { return _special; }
1.40 + bool executable() const { return _executable; }
1.41 + size_t noaccess_prefix() const { return _noaccess_prefix; }
1.42 + bool is_reserved() const { return _base != NULL; }
1.43 void release();
1.44
1.45 // Splitting
1.46 @@ -126,6 +129,13 @@
1.47 char* requested_address);
1.48 };
1.49
1.50 +// Class encapsulating behavior specific memory space for Code
1.51 +class ReservedCodeSpace : public ReservedSpace {
1.52 + public:
1.53 + // Constructor
1.54 + ReservedCodeSpace(size_t r_size, size_t rs_align, bool large);
1.55 +};
1.56 +
1.57 // VirtualSpace is data structure for committing a previously reserved address range in smaller chunks.
1.58
1.59 class VirtualSpace VALUE_OBJ_CLASS_SPEC {
1.60 @@ -143,6 +153,9 @@
1.61 // os::commit_memory() or os::uncommit_memory().
1.62 bool _special;
1.63
1.64 + // Need to know if commit should be executable.
1.65 + bool _executable;
1.66 +
1.67 // MPSS Support
1.68 // Each virtualspace region has a lower, middle, and upper region.
1.69 // Each region has an end boundary and a high pointer which is the
