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/*
* Copyright (c) 1998, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*
*/
#include "precompiled.hpp"
#include "memory/universe.hpp"
#include "oops/oop.inline.hpp"
#include "runtime/arguments.hpp"
#ifdef TARGET_ARCH_x86
# include "vm_version_x86.hpp"
#endif
#ifdef TARGET_ARCH_sparc
# include "vm_version_sparc.hpp"
#endif
#ifdef TARGET_ARCH_zero
# include "vm_version_zero.hpp"
#endif
#ifdef TARGET_ARCH_arm
# include "vm_version_arm.hpp"
#endif
#ifdef TARGET_ARCH_ppc
# include "vm_version_ppc.hpp"
#endif
const char* Abstract_VM_Version::_s_vm_release = Abstract_VM_Version::vm_release();
const char* Abstract_VM_Version::_s_internal_vm_info_string = Abstract_VM_Version::internal_vm_info_string();
bool Abstract_VM_Version::_supports_cx8 = false;
bool Abstract_VM_Version::_supports_atomic_getset4 = false;
bool Abstract_VM_Version::_supports_atomic_getset8 = false;
bool Abstract_VM_Version::_supports_atomic_getadd4 = false;
bool Abstract_VM_Version::_supports_atomic_getadd8 = false;
unsigned int Abstract_VM_Version::_logical_processors_per_package = 1U;
int Abstract_VM_Version::_reserve_for_allocation_prefetch = 0;
#ifndef HOTSPOT_RELEASE_VERSION
#error HOTSPOT_RELEASE_VERSION must be defined
#endif
#ifndef JRE_RELEASE_VERSION
#error JRE_RELEASE_VERSION must be defined
#endif
#ifndef HOTSPOT_BUILD_TARGET
#error HOTSPOT_BUILD_TARGET must be defined
#endif
#ifdef PRODUCT
#define VM_RELEASE HOTSPOT_RELEASE_VERSION
#else
#define VM_RELEASE HOTSPOT_RELEASE_VERSION "-" HOTSPOT_BUILD_TARGET
#endif
// HOTSPOT_RELEASE_VERSION must follow the release version naming convention
// <major_ver>.<minor_ver>-b<nn>[-<identifier>][-<debug_target>]
int Abstract_VM_Version::_vm_major_version = 0;
int Abstract_VM_Version::_vm_minor_version = 0;
int Abstract_VM_Version::_vm_build_number = 0;
bool Abstract_VM_Version::_initialized = false;
int Abstract_VM_Version::_parallel_worker_threads = 0;
bool Abstract_VM_Version::_parallel_worker_threads_initialized = false;
void Abstract_VM_Version::initialize() {
if (_initialized) {
return;
}
char* vm_version = os::strdup(HOTSPOT_RELEASE_VERSION);
// Expecting the next vm_version format:
// <major_ver>.<minor_ver>-b<nn>[-<identifier>]
char* vm_major_ver = vm_version;
assert(isdigit(vm_major_ver[0]),"wrong vm major version number");
char* vm_minor_ver = strchr(vm_major_ver, '.');
assert(vm_minor_ver != NULL && isdigit(vm_minor_ver[1]),"wrong vm minor version number");
vm_minor_ver[0] = '\0'; // terminate vm_major_ver
vm_minor_ver += 1;
char* vm_build_num = strchr(vm_minor_ver, '-');
assert(vm_build_num != NULL && vm_build_num[1] == 'b' && isdigit(vm_build_num[2]),"wrong vm build number");
vm_build_num[0] = '\0'; // terminate vm_minor_ver
vm_build_num += 2;
_vm_major_version = atoi(vm_major_ver);
_vm_minor_version = atoi(vm_minor_ver);
_vm_build_number = atoi(vm_build_num);
os::free(vm_version);
_initialized = true;
}
#if defined(_LP64)
#define VMLP "64-Bit "
#else
#define VMLP ""
#endif
#ifndef VMTYPE
#ifdef TIERED
#define VMTYPE "Server"
#else // TIERED
#ifdef ZERO
#ifdef SHARK
#define VMTYPE "Shark"
#else // SHARK
#define VMTYPE "Zero"
#endif // SHARK
#else // ZERO
#define VMTYPE COMPILER1_PRESENT("Client") \
COMPILER2_PRESENT("Server")
#endif // ZERO
#endif // TIERED
#endif
#ifndef HOTSPOT_VM_DISTRO
#error HOTSPOT_VM_DISTRO must be defined
#endif
#define VMNAME HOTSPOT_VM_DISTRO " " VMLP EMBEDDED_ONLY("Embedded ") VMTYPE " VM"
const char* Abstract_VM_Version::vm_name() {
return VMNAME;
}
const char* Abstract_VM_Version::vm_vendor() {
#ifdef VENDOR
return XSTR(VENDOR);
#else
return JDK_Version::is_gte_jdk17x_version() ?
"Oracle Corporation" : "Sun Microsystems Inc.";
#endif
}
const char* Abstract_VM_Version::vm_info_string() {
switch (Arguments::mode()) {
case Arguments::_int:
return UseSharedSpaces ? "interpreted mode, sharing" : "interpreted mode";
case Arguments::_mixed:
return UseSharedSpaces ? "mixed mode, sharing" : "mixed mode";
case Arguments::_comp:
return UseSharedSpaces ? "compiled mode, sharing" : "compiled mode";
};
ShouldNotReachHere();
return "";
}
// NOTE: do *not* use stringStream. this function is called by
// fatal error handler. if the crash is in native thread,
// stringStream cannot get resource allocated and will SEGV.
const char* Abstract_VM_Version::vm_release() {
return VM_RELEASE;
}
// NOTE: do *not* use stringStream. this function is called by
// fatal error handlers. if the crash is in native thread,
// stringStream cannot get resource allocated and will SEGV.
const char* Abstract_VM_Version::jre_release_version() {
return JRE_RELEASE_VERSION;
}
#define OS LINUX_ONLY("linux") \
WINDOWS_ONLY("windows") \
SOLARIS_ONLY("solaris") \
AIX_ONLY("aix") \
BSD_ONLY("bsd")
#ifndef CPU
#ifdef ZERO
#define CPU ZERO_LIBARCH
#else
#define CPU IA32_ONLY("x86") \
IA64_ONLY("ia64") \
AMD64_ONLY("amd64") \
PPC64_ONLY("ppc64") \
SPARC_ONLY("sparc")
#endif // ZERO
#endif
const char *Abstract_VM_Version::vm_platform_string() {
return OS "-" CPU;
}
const char* Abstract_VM_Version::internal_vm_info_string() {
#ifndef HOTSPOT_BUILD_USER
#define HOTSPOT_BUILD_USER unknown
#endif
#ifndef HOTSPOT_BUILD_COMPILER
#ifdef _MSC_VER
#if _MSC_VER == 1100
#define HOTSPOT_BUILD_COMPILER "MS VC++ 5.0"
#elif _MSC_VER == 1200
#define HOTSPOT_BUILD_COMPILER "MS VC++ 6.0"
#elif _MSC_VER == 1310
#define HOTSPOT_BUILD_COMPILER "MS VC++ 7.1 (VS2003)"
#elif _MSC_VER == 1400
#define HOTSPOT_BUILD_COMPILER "MS VC++ 8.0 (VS2005)"
#elif _MSC_VER == 1500
#define HOTSPOT_BUILD_COMPILER "MS VC++ 9.0 (VS2008)"
#elif _MSC_VER == 1600
#define HOTSPOT_BUILD_COMPILER "MS VC++ 10.0 (VS2010)"
#elif _MSC_VER == 1700
#define HOTSPOT_BUILD_COMPILER "MS VC++ 11.0 (VS2012)"
#else
#define HOTSPOT_BUILD_COMPILER "unknown MS VC++:" XSTR(_MSC_VER)
#endif
#elif defined(__SUNPRO_CC)
#if __SUNPRO_CC == 0x420
#define HOTSPOT_BUILD_COMPILER "Workshop 4.2"
#elif __SUNPRO_CC == 0x500
#define HOTSPOT_BUILD_COMPILER "Workshop 5.0 compat=" XSTR(__SUNPRO_CC_COMPAT)
#elif __SUNPRO_CC == 0x520
#define HOTSPOT_BUILD_COMPILER "Workshop 5.2 compat=" XSTR(__SUNPRO_CC_COMPAT)
#elif __SUNPRO_CC == 0x580
#define HOTSPOT_BUILD_COMPILER "Workshop 5.8"
#elif __SUNPRO_CC == 0x590
#define HOTSPOT_BUILD_COMPILER "Workshop 5.9"
#elif __SUNPRO_CC == 0x5100
#define HOTSPOT_BUILD_COMPILER "Sun Studio 12u1"
#elif __SUNPRO_CC == 0x5120
#define HOTSPOT_BUILD_COMPILER "Sun Studio 12u3"
#else
#define HOTSPOT_BUILD_COMPILER "unknown Workshop:" XSTR(__SUNPRO_CC)
#endif
#elif defined(__GNUC__)
#define HOTSPOT_BUILD_COMPILER "gcc " __VERSION__
#elif defined(__IBMCPP__)
#define HOTSPOT_BUILD_COMPILER "xlC " XSTR(__IBMCPP__)
#else
#define HOTSPOT_BUILD_COMPILER "unknown compiler"
#endif
#endif
#ifndef FLOAT_ARCH
#if defined(__SOFTFP__)
#define FLOAT_ARCH_STR "-sflt"
#else
#define FLOAT_ARCH_STR ""
#endif
#else
#define FLOAT_ARCH_STR XSTR(FLOAT_ARCH)
#endif
return VMNAME " (" VM_RELEASE ") for " OS "-" CPU FLOAT_ARCH_STR
" JRE (" JRE_RELEASE_VERSION "), built on " __DATE__ " " __TIME__
" by " XSTR(HOTSPOT_BUILD_USER) " with " HOTSPOT_BUILD_COMPILER;
}
const char *Abstract_VM_Version::vm_build_user() {
return HOTSPOT_BUILD_USER;
}
unsigned int Abstract_VM_Version::jvm_version() {
return ((Abstract_VM_Version::vm_major_version() & 0xFF) << 24) |
((Abstract_VM_Version::vm_minor_version() & 0xFF) << 16) |
(Abstract_VM_Version::vm_build_number() & 0xFF);
}
void VM_Version_init() {
VM_Version::initialize();
#ifndef PRODUCT
if (PrintMiscellaneous && Verbose) {
os::print_cpu_info(tty);
}
#endif
}
unsigned int Abstract_VM_Version::nof_parallel_worker_threads(
unsigned int num,
unsigned int den,
unsigned int switch_pt) {
if (FLAG_IS_DEFAULT(ParallelGCThreads)) {
assert(ParallelGCThreads == 0, "Default ParallelGCThreads is not 0");
// For very large machines, there are diminishing returns
// for large numbers of worker threads. Instead of
// hogging the whole system, use a fraction of the workers for every
// processor after the first 8. For example, on a 72 cpu machine
// and a chosen fraction of 5/8
// use 8 + (72 - 8) * (5/8) == 48 worker threads.
unsigned int ncpus = (unsigned int) os::active_processor_count();
return (ncpus <= switch_pt) ?
ncpus :
(switch_pt + ((ncpus - switch_pt) * num) / den);
} else {
return ParallelGCThreads;
}
}
unsigned int Abstract_VM_Version::calc_parallel_worker_threads() {
return nof_parallel_worker_threads(5, 8, 8);
}
// Does not set the _initialized flag since it is
// a global flag.
unsigned int Abstract_VM_Version::parallel_worker_threads() {
if (!_parallel_worker_threads_initialized) {
if (FLAG_IS_DEFAULT(ParallelGCThreads)) {
_parallel_worker_threads = VM_Version::calc_parallel_worker_threads();
} else {
_parallel_worker_threads = ParallelGCThreads;
}
_parallel_worker_threads_initialized = true;
}
return _parallel_worker_threads;
}
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