diff src/share/vm/code/relocInfo.hpp @ 14909:4ca6dc0799b6

Backout jdk9 merge
author Gilles Duboscq <duboscq@ssw.jku.at>
date Tue, 01 Apr 2014 13:57:07 +0200
parents d8041d695d19
children 52b4284cb496
line wrap: on
line diff
--- a/src/share/vm/code/relocInfo.hpp	Tue Apr 01 14:09:03 2014 +0200
+++ b/src/share/vm/code/relocInfo.hpp	Tue Apr 01 13:57:07 2014 +0200
@@ -265,8 +265,8 @@
     poll_type               = 10, // polling instruction for safepoints
     poll_return_type        = 11, // polling instruction for safepoints at return
     metadata_type           = 12, // metadata that used to be oops
-    trampoline_stub_type    = 13, // stub-entry for trampoline
-    yet_unused_type_1       = 14, // Still unused
+    yet_unused_type_1       = 13, // Still unused
+    yet_unused_type_2       = 14, // Still unused
     data_prefix_tag         = 15, // tag for a prefix (carries data arguments)
     type_mask               = 15  // A mask which selects only the above values
   };
@@ -306,7 +306,6 @@
     visitor(poll) \
     visitor(poll_return) \
     visitor(section_word) \
-    visitor(trampoline_stub) \
 
 
  public:
@@ -465,7 +464,7 @@
   return relocInfo(relocInfo::none, relocInfo::offset_limit() - relocInfo::offset_unit);
 }
 
-inline relocInfo prefix_relocInfo(int datalen = 0) {
+inline relocInfo prefix_relocInfo(int datalen) {
   assert(relocInfo::fits_into_immediate(datalen), "datalen in limits");
   return relocInfo(relocInfo::data_prefix_tag, relocInfo::RAW_BITS, relocInfo::datalen_tag | datalen);
 }
@@ -1156,43 +1155,6 @@
  public:
 };
 
-// Trampoline Relocations.
-// A trampoline allows to encode a small branch in the code, even if there
-// is the chance that this branch can not reach all possible code locations.
-// If the relocation finds that a branch is too far for the instruction
-// in the code, it can patch it to jump to the trampoline where is
-// sufficient space for a far branch. Needed on PPC.
-class trampoline_stub_Relocation : public Relocation {
-  relocInfo::relocType type() { return relocInfo::trampoline_stub_type; }
-
- public:
-  static RelocationHolder spec(address static_call) {
-    RelocationHolder rh = newHolder();
-    return (new (rh) trampoline_stub_Relocation(static_call));
-  }
-
- private:
-  address _owner;    // Address of the NativeCall that owns the trampoline.
-
-  trampoline_stub_Relocation(address owner) {
-    _owner = owner;
-  }
-
-  friend class RelocIterator;
-  trampoline_stub_Relocation() { }
-
- public:
-
-  // Return the address of the NativeCall that owns the trampoline.
-  address owner() { return _owner; }
-
-  void pack_data_to(CodeSection * dest);
-  void unpack_data();
-
-  // Find the trampoline stub for a call.
-  static address get_trampoline_for(address call, nmethod* code);
-};
-
 class external_word_Relocation : public DataRelocation {
   relocInfo::relocType type() { return relocInfo::external_word_type; }