src/os_cpu/solaris_sparc/vm/vm_version_solaris_sparc.cpp
Index Unified diffs Context diffs Sdiffs Patch New Old Previous File Next File
*** old/src/os_cpu/solaris_sparc/vm/vm_version_solaris_sparc.cpp	Fri Oct 24 12:06:30 2014
--- new/src/os_cpu/solaris_sparc/vm/vm_version_solaris_sparc.cpp	Fri Oct 24 12:06:30 2014

*** 31,68 **** --- 31,101 ---- #include <sys/auxv.h> #include <sys/auxv_SPARC.h> #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) { 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) { ! _picl_get_propinfo(proph, &pinfo) != PICL_SUCCESS) { return PICL_FAILURE; } if (pinfo.type != PICL_PTYPE_INT && pinfo.type != PICL_PTYPE_UNSIGNED_INT) { assert(false, "Invalid property type"); return PICL_FAILURE; } if (pinfo.size == sizeof(int64_t)) { int64_t val; ! 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) { return PICL_FAILURE; } *result = static_cast<int>(val); } else { assert(false, "Unexpected integer property size");
*** 72,89 **** --- 105,123 ---- } // 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 INCONSISTENT // Inconsistent value seen } _state; int _value; public: ! UniqueValueVisitor(PICL* picl) : _picl(picl), _state(INITIAL) { } int value() { assert(_state == ASSIGNED, "Precondition"); return _value; } void set_value(int value) {
*** 96,108 **** --- 130,143 ---- bool is_inconsistent() { return _state == INCONSISTENT; } void set_inconsistent() { _state = INCONSISTENT; } 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 state->set_inconsistent(); }
*** 122,157 **** --- 157,196 ---- } static int get_l2_cache_line_size(picl_nodehdl_t nodeh, void *state) { return UniqueValueVisitor::visit(nodeh, "l2-cache-line-size", state); } ! PICL() : _L1_data_cache_line_size(0), _L2_cache_line_size(0), _dl_handle(NULL) { ! if (picl_initialize() == PICL_SUCCESS) { ! if (!open_library()) { + return; + } + if (_picl_initialize() == PICL_SUCCESS) { picl_nodehdl_t rooth; ! 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); 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); } if (L1_state.is_assigned()) { // Is there a value? _L1_data_cache_line_size = L1_state.value(); } ! 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); } if (L2_state.is_assigned()) { _L2_cache_line_size = L2_state.value(); } } ! _picl_shutdown(); } + close_library(); } unsigned int L1_data_cache_line_size() const { return _L1_data_cache_line_size; } unsigned int L2_cache_line_size() const { return _L2_cache_line_size; } };
*** 161,170 **** --- 200,246 ---- } extern "C" static int PICL_get_l2_cache_line_size_helper(picl_nodehdl_t nodeh, void *result) { 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 #define SI_ARCHITECTURE_32 516 /* basic 32-bit SI_ARCHITECTURE */ #endif

src/os_cpu/solaris_sparc/vm/vm_version_solaris_sparc.cpp
Index Unified diffs Context diffs Sdiffs Patch New Old Previous File Next File