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changeset 20345:f933a15469d4

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8055006: Store original value of Min/MaxHeapFreeRatio Summary: Store the value set by the user and some makefile changes required to change the flags. Reviewed-by: sla, mchung, bchristi, jmasa, dholmes
author jwilhelm
date Mon, 28 Jul 2014 22:43:08 +0200
parents 2fd0fd493045
children 28b4223e2ea7
files make/bsd/makefiles/vm.make make/linux/makefiles/vm.make make/solaris/makefiles/vm.make src/share/vm/runtime/arguments.cpp src/share/vm/runtime/arguments.hpp
diffstat 5 files changed, 44 insertions(+), 6 deletions(-) [+]
line wrap: on
line diff
--- a/make/bsd/makefiles/vm.make	Wed Jun 04 10:01:28 2014 +0200
+++ b/make/bsd/makefiles/vm.make	Mon Jul 28 22:43:08 2014 +0200
@@ -243,10 +243,10 @@
 
 vm_version.o: $(filter-out vm_version.o,$(JVM_OBJ_FILES))
 
-mapfile : $(MAPFILE) vm.def
+mapfile : $(MAPFILE) vm.def mapfile_ext
 	rm -f $@
 	awk '{ if ($$0 ~ "INSERT VTABLE SYMBOLS HERE")	\
-                 { system ("cat vm.def"); }		\
+                 { system ("cat mapfile_ext"); system ("cat vm.def"); } \
                else					\
                  { print $$0 }				\
              }' > $@ < $(MAPFILE)
@@ -258,6 +258,13 @@
 vm.def: $(Res_Files) $(Obj_Files)
 	sh $(GAMMADIR)/make/bsd/makefiles/build_vm_def.sh *.o > $@
 
+mapfile_ext:
+	rm -f $@
+	touch $@
+	if [ -f $(HS_ALT_MAKE)/bsd/makefiles/mapfile-ext ]; then \
+	  cat $(HS_ALT_MAKE)/bsd/makefiles/mapfile-ext > $@; \
+	fi
+
 STATIC_CXX = false
 
 ifeq ($(LINK_INTO),AOUT)
--- a/make/linux/makefiles/vm.make	Wed Jun 04 10:01:28 2014 +0200
+++ b/make/linux/makefiles/vm.make	Mon Jul 28 22:43:08 2014 +0200
@@ -233,10 +233,10 @@
 
 vm_version.o: $(filter-out vm_version.o,$(JVM_OBJ_FILES))
 
-mapfile : $(MAPFILE) vm.def
+mapfile : $(MAPFILE) vm.def mapfile_ext
 	rm -f $@
 	awk '{ if ($$0 ~ "INSERT VTABLE SYMBOLS HERE")	\
-                 { system ("cat vm.def"); }		\
+                 { system ("cat mapfile_ext"); system ("cat vm.def"); } \
                else					\
                  { print $$0 }				\
              }' > $@ < $(MAPFILE)
@@ -248,6 +248,13 @@
 vm.def: $(Res_Files) $(Obj_Files)
 	sh $(GAMMADIR)/make/linux/makefiles/build_vm_def.sh *.o > $@
 
+mapfile_ext:
+	rm -f $@
+	touch $@
+	if [ -f $(HS_ALT_MAKE)/linux/makefiles/mapfile-ext ]; then \
+	  cat $(HS_ALT_MAKE)/linux/makefiles/mapfile-ext > $@; \
+	fi
+
 ifeq ($(JVM_VARIANT_ZEROSHARK), true)
   STATIC_CXX = false
 else
--- a/make/solaris/makefiles/vm.make	Wed Jun 04 10:01:28 2014 +0200
+++ b/make/solaris/makefiles/vm.make	Mon Jul 28 22:43:08 2014 +0200
@@ -247,11 +247,12 @@
 
 vm_version.o: $(filter-out vm_version.o,$(JVM_OBJ_FILES))
 
-mapfile : $(MAPFILE) $(MAPFILE_DTRACE_OPT) vm.def
+mapfile : $(MAPFILE) $(MAPFILE_DTRACE_OPT) vm.def mapfile_ext
 	rm -f $@
 	cat $(MAPFILE) $(MAPFILE_DTRACE_OPT) \
 	    | $(NAWK) '{                                         \
 	              if ($$0 ~ "INSERT VTABLE SYMBOLS HERE") {  \
+	                  system ("cat mapfile_ext");            \
 	                  system ("cat vm.def");                 \
 	              } else {                                   \
 	                  print $$0;                             \
@@ -265,6 +266,13 @@
 vm.def: $(Obj_Files)
 	sh $(GAMMADIR)/make/solaris/makefiles/build_vm_def.sh *.o > $@
 
+mapfile_ext:
+	rm -f $@
+	touch $@
+	if [ -f $(HS_ALT_MAKE)/solaris/makefiles/mapfile-ext ]; then \
+	  cat $(HS_ALT_MAKE)/solaris/makefiles/mapfile-ext > $@; \
+	fi
+
 ifeq ($(LINK_INTO),AOUT)
   LIBJVM.o                 =
   LIBJVM_MAPFILE           =
--- a/src/share/vm/runtime/arguments.cpp	Wed Jun 04 10:01:28 2014 +0200
+++ b/src/share/vm/runtime/arguments.cpp	Mon Jul 28 22:43:08 2014 +0200
@@ -98,6 +98,8 @@
 bool   Arguments::_has_profile                  = false;
 size_t Arguments::_conservative_max_heap_alignment = 0;
 uintx  Arguments::_min_heap_size                = 0;
+uintx  Arguments::_min_heap_free_ratio          = 0;
+uintx  Arguments::_max_heap_free_ratio          = 0;
 Arguments::Mode Arguments::_mode                = _mixed;
 bool   Arguments::_java_compiler                = false;
 bool   Arguments::_xdebug_mode                  = false;
@@ -1596,9 +1598,11 @@
     // unless the user actually sets these flags.
     if (FLAG_IS_DEFAULT(MinHeapFreeRatio)) {
       FLAG_SET_DEFAULT(MinHeapFreeRatio, 0);
+      _min_heap_free_ratio = MinHeapFreeRatio;
     }
     if (FLAG_IS_DEFAULT(MaxHeapFreeRatio)) {
       FLAG_SET_DEFAULT(MaxHeapFreeRatio, 100);
+      _max_heap_free_ratio = MaxHeapFreeRatio;
     }
   }
 
@@ -1973,6 +1977,8 @@
                   MaxHeapFreeRatio);
     return false;
   }
+  // This does not set the flag itself, but stores the value in a safe place for later usage.
+  _min_heap_free_ratio = min_heap_free_ratio;
   return true;
 }
 
@@ -1987,6 +1993,8 @@
                   MinHeapFreeRatio);
     return false;
   }
+  // This does not set the flag itself, but stores the value in a safe place for later usage.
+  _max_heap_free_ratio = max_heap_free_ratio;
   return true;
 }
 
--- a/src/share/vm/runtime/arguments.hpp	Wed Jun 04 10:01:28 2014 +0200
+++ b/src/share/vm/runtime/arguments.hpp	Mon Jul 28 22:43:08 2014 +0200
@@ -284,7 +284,11 @@
   // Value of the conservative maximum heap alignment needed
   static size_t  _conservative_max_heap_alignment;
 
-  static uintx  _min_heap_size;
+  static uintx _min_heap_size;
+
+  // Used to store original flag values
+  static uintx _min_heap_free_ratio;
+  static uintx _max_heap_free_ratio;
 
   // -Xrun arguments
   static AgentLibraryList _libraryList;
@@ -514,6 +518,10 @@
   static uintx min_heap_size()              { return _min_heap_size; }
   static void  set_min_heap_size(uintx v)   { _min_heap_size = v;  }
 
+  // Returns the original values of -XX:MinHeapFreeRatio and -XX:MaxHeapFreeRatio
+  static uintx min_heap_free_ratio()        { return _min_heap_free_ratio; }
+  static uintx max_heap_free_ratio()        { return _max_heap_free_ratio; }
+
   // -Xrun
   static AgentLibrary* libraries()          { return _libraryList.first(); }
   static bool init_libraries_at_startup()   { return !_libraryList.is_empty(); }