--- a/hotspot/src/os_cpu/solaris_sparc/vm/vm_version_solaris_sparc.cpp Sat Oct 25 19:06:23 2014 +0400
+++ b/hotspot/src/os_cpu/solaris_sparc/vm/vm_version_solaris_sparc.cpp Sat Oct 25 21:02:29 2014 -1000
@@ -33,18 +33,51 @@
#include <sys/systeminfo.h>
#include <kstat.h>
#include <picl.h>
+#include <dlfcn.h>
+#include <link.h>
extern "C" static int PICL_get_l1_data_cache_line_size_helper(picl_nodehdl_t nodeh, void *result);
extern "C" static int PICL_get_l2_cache_line_size_helper(picl_nodehdl_t nodeh, void *result);
+// Functions from the library we need (signatures should match those in picl.h)
+extern "C" {
+ typedef int (*picl_initialize_func_t)(void);
+ typedef int (*picl_shutdown_func_t)(void);
+ typedef int (*picl_get_root_func_t)(picl_nodehdl_t *nodehandle);
+ typedef int (*picl_walk_tree_by_class_func_t)(picl_nodehdl_t rooth,
+ const char *classname, void *c_args,
+ int (*callback_fn)(picl_nodehdl_t hdl, void *args));
+ typedef int (*picl_get_prop_by_name_func_t)(picl_nodehdl_t nodeh, const char *nm,
+ picl_prophdl_t *ph);
+ typedef int (*picl_get_propval_func_t)(picl_prophdl_t proph, void *valbuf, size_t sz);
+ typedef int (*picl_get_propinfo_func_t)(picl_prophdl_t proph, picl_propinfo_t *pi);
+}
+
class PICL {
+ // Pointers to functions in the library
+ picl_initialize_func_t _picl_initialize;
+ picl_shutdown_func_t _picl_shutdown;
+ picl_get_root_func_t _picl_get_root;
+ picl_walk_tree_by_class_func_t _picl_walk_tree_by_class;
+ picl_get_prop_by_name_func_t _picl_get_prop_by_name;
+ picl_get_propval_func_t _picl_get_propval;
+ picl_get_propinfo_func_t _picl_get_propinfo;
+ // Handle to the library that is returned by dlopen
+ void *_dl_handle;
+
+ bool open_library();
+ void close_library();
+
+ template<typename FuncType> bool bind(FuncType& func, const char* name);
+ bool bind_library_functions();
+
// Get a value of the integer property. The value in the tree can be either 32 or 64 bit
// depending on the platform. The result is converted to int.
- static int get_int_property(picl_nodehdl_t nodeh, const char* name, int* result) {
+ int get_int_property(picl_nodehdl_t nodeh, const char* name, int* result) {
picl_propinfo_t pinfo;
picl_prophdl_t proph;
- if (picl_get_prop_by_name(nodeh, name, &proph) != PICL_SUCCESS ||
- picl_get_propinfo(proph, &pinfo) != PICL_SUCCESS) {
+ if (_picl_get_prop_by_name(nodeh, name, &proph) != PICL_SUCCESS ||
+ _picl_get_propinfo(proph, &pinfo) != PICL_SUCCESS) {
return PICL_FAILURE;
}
@@ -54,13 +87,13 @@
}
if (pinfo.size == sizeof(int64_t)) {
int64_t val;
- if (picl_get_propval(proph, &val, sizeof(int64_t)) != PICL_SUCCESS) {
+ if (_picl_get_propval(proph, &val, sizeof(int64_t)) != PICL_SUCCESS) {
return PICL_FAILURE;
}
*result = static_cast<int>(val);
} else if (pinfo.size == sizeof(int32_t)) {
int32_t val;
- if (picl_get_propval(proph, &val, sizeof(int32_t)) != PICL_SUCCESS) {
+ if (_picl_get_propval(proph, &val, sizeof(int32_t)) != PICL_SUCCESS) {
return PICL_FAILURE;
}
*result = static_cast<int>(val);
@@ -74,6 +107,7 @@
// Visitor and a state machine that visits integer properties and verifies that the
// values are the same. Stores the unique value observed.
class UniqueValueVisitor {
+ PICL *_picl;
enum {
INITIAL, // Start state, no assignments happened
ASSIGNED, // Assigned a value
@@ -81,7 +115,7 @@
} _state;
int _value;
public:
- UniqueValueVisitor() : _state(INITIAL) { }
+ UniqueValueVisitor(PICL* picl) : _picl(picl), _state(INITIAL) { }
int value() {
assert(_state == ASSIGNED, "Precondition");
return _value;
@@ -98,9 +132,10 @@
static int visit(picl_nodehdl_t nodeh, const char* name, void *arg) {
UniqueValueVisitor *state = static_cast<UniqueValueVisitor*>(arg);
+ PICL* picl = state->_picl;
assert(!state->is_inconsistent(), "Precondition");
int curr;
- if (PICL::get_int_property(nodeh, name, &curr) == PICL_SUCCESS) {
+ if (picl->get_int_property(nodeh, name, &curr) == PICL_SUCCESS) {
if (!state->is_assigned()) { // first iteration
state->set_value(curr);
} else if (curr != state->value()) { // following iterations
@@ -124,32 +159,36 @@
return UniqueValueVisitor::visit(nodeh, "l2-cache-line-size", state);
}
- PICL() : _L1_data_cache_line_size(0), _L2_cache_line_size(0) {
- if (picl_initialize() == PICL_SUCCESS) {
+ PICL() : _L1_data_cache_line_size(0), _L2_cache_line_size(0), _dl_handle(NULL) {
+ if (!open_library()) {
+ return;
+ }
+ if (_picl_initialize() == PICL_SUCCESS) {
picl_nodehdl_t rooth;
- if (picl_get_root(&rooth) == PICL_SUCCESS) {
- UniqueValueVisitor L1_state;
+ if (_picl_get_root(&rooth) == PICL_SUCCESS) {
+ UniqueValueVisitor L1_state(this);
// Visit all "cpu" class instances
- picl_walk_tree_by_class(rooth, "cpu", &L1_state, PICL_get_l1_data_cache_line_size_helper);
+ _picl_walk_tree_by_class(rooth, "cpu", &L1_state, PICL_get_l1_data_cache_line_size_helper);
if (L1_state.is_initial()) { // Still initial, iteration found no values
// Try walk all "core" class instances, it might be a Fujitsu machine
- picl_walk_tree_by_class(rooth, "core", &L1_state, PICL_get_l1_data_cache_line_size_helper);
+ _picl_walk_tree_by_class(rooth, "core", &L1_state, PICL_get_l1_data_cache_line_size_helper);
}
if (L1_state.is_assigned()) { // Is there a value?
_L1_data_cache_line_size = L1_state.value();
}
- UniqueValueVisitor L2_state;
- picl_walk_tree_by_class(rooth, "cpu", &L2_state, PICL_get_l2_cache_line_size_helper);
+ UniqueValueVisitor L2_state(this);
+ _picl_walk_tree_by_class(rooth, "cpu", &L2_state, PICL_get_l2_cache_line_size_helper);
if (L2_state.is_initial()) {
- picl_walk_tree_by_class(rooth, "core", &L2_state, PICL_get_l2_cache_line_size_helper);
+ _picl_walk_tree_by_class(rooth, "core", &L2_state, PICL_get_l2_cache_line_size_helper);
}
if (L2_state.is_assigned()) {
_L2_cache_line_size = L2_state.value();
}
}
- picl_shutdown();
+ _picl_shutdown();
}
+ close_library();
}
unsigned int L1_data_cache_line_size() const { return _L1_data_cache_line_size; }
@@ -163,6 +202,43 @@
return PICL::get_l2_cache_line_size(nodeh, result);
}
+template<typename FuncType>
+bool PICL::bind(FuncType& func, const char* name) {
+ func = reinterpret_cast<FuncType>(dlsym(_dl_handle, name));
+ return func != NULL;
+}
+
+bool PICL::bind_library_functions() {
+ assert(_dl_handle != NULL, "library should be open");
+ return bind(_picl_initialize, "picl_initialize" ) &&
+ bind(_picl_shutdown, "picl_shutdown" ) &&
+ bind(_picl_get_root, "picl_get_root" ) &&
+ bind(_picl_walk_tree_by_class, "picl_walk_tree_by_class") &&
+ bind(_picl_get_prop_by_name, "picl_get_prop_by_name" ) &&
+ bind(_picl_get_propval, "picl_get_propval" ) &&
+ bind(_picl_get_propinfo, "picl_get_propinfo" );
+}
+
+bool PICL::open_library() {
+ _dl_handle = dlopen("libpicl.so.1", RTLD_LAZY);
+ if (_dl_handle == NULL) {
+ warning("PICL (libpicl.so.1) is missing. Performance will not be optimal.");
+ return false;
+ }
+ if (!bind_library_functions()) {
+ assert(false, "unexpected PICL API change");
+ close_library();
+ return false;
+ }
+ return true;
+}
+
+void PICL::close_library() {
+ assert(_dl_handle != NULL, "library should be open");
+ dlclose(_dl_handle);
+ _dl_handle = NULL;
+}
+
// We need to keep these here as long as we have to build on Solaris
// versions before 10.
#ifndef SI_ARCHITECTURE_32