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This commit is contained in:
Kevin Walls 2016-03-16 11:13:37 +00:00
commit d55d5e2440
45 changed files with 598 additions and 369 deletions
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6
hotspot/src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/SAGetopt.java
View File

@ -84,7 +84,11 @@ public class SAGetopt {
}
else {
// Mixed style options --file name
extractOptarg(ca[0]);
try {
extractOptarg(ca[0]);
} catch (ArrayIndexOutOfBoundsException e) {
throw new RuntimeException("Argument is expected for '" + ca[0] + "'");
}
}
return ca[0];

179
hotspot/src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/SALauncher.java
View File

@ -111,18 +111,53 @@ public class SALauncher {
return launcherHelp();
}
private static void buildAttachArgs(ArrayList<String> newArgs,
String pid, String exe, String core) {
if ((pid == null) && (exe == null)) {
throw new IllegalArgumentException(
"You have to set --pid or --exe.");
}
if (pid != null) { // Attach to live process
if (exe != null) {
throw new IllegalArgumentException(
"Unnecessary argument: --exe");
} else if (core != null) {
throw new IllegalArgumentException(
"Unnecessary argument: --core");
} else if (!pid.matches("^\\d+$")) {
throw new IllegalArgumentException("Invalid pid: " + pid);
}
newArgs.add(pid);
} else {
if (exe.length() == 0) {
throw new IllegalArgumentException("You have to set --exe.");
}
newArgs.add(exe);
if ((core == null) || (core.length() == 0)) {
throw new IllegalArgumentException("You have to set --core.");
}
newArgs.add(core);
}
}
private static void runCLHSDB(String[] oldArgs) {
SAGetopt sg = new SAGetopt(oldArgs);
String[] longOpts = {"exe=", "core=", "pid="};
ArrayList<String> newArgs = new ArrayList();
String exeORpid = null;
String pid = null;
String exe = null;
String core = null;
String s = null;
while((s = sg.next(null, longOpts)) != null) {
if (s.equals("exe")) {
exeORpid = sg.getOptarg();
exe = sg.getOptarg();
continue;
}
if (s.equals("core")) {
@ -130,17 +165,12 @@ public class SALauncher {
continue;
}
if (s.equals("pid")) {
exeORpid = sg.getOptarg();
pid = sg.getOptarg();
continue;
}
}
if (exeORpid != null) {
newArgs.add(exeORpid);
if (core != null) {
newArgs.add(core);
}
}
buildAttachArgs(newArgs, pid, exe, core);
CLHSDB.main(newArgs.toArray(new String[newArgs.size()]));
}
@ -149,13 +179,14 @@ public class SALauncher {
String[] longOpts = {"exe=", "core=", "pid="};
ArrayList<String> newArgs = new ArrayList();
String exeORpid = null;
String pid = null;
String exe = null;
String core = null;
String s = null;
while((s = sg.next(null, longOpts)) != null) {
if (s.equals("exe")) {
exeORpid = sg.getOptarg();
exe = sg.getOptarg();
continue;
}
if (s.equals("core")) {
@ -163,17 +194,12 @@ public class SALauncher {
continue;
}
if (s.equals("pid")) {
exeORpid = sg.getOptarg();
pid = sg.getOptarg();
continue;
}
}
if (exeORpid != null) {
newArgs.add(exeORpid);
if (core != null) {
newArgs.add(core);
}
}
buildAttachArgs(newArgs, pid, exe, core);
HSDB.main(newArgs.toArray(new String[newArgs.size()]));
}
@ -183,13 +209,14 @@ public class SALauncher {
"mixed", "locks"};
ArrayList<String> newArgs = new ArrayList();
String exeORpid = null;
String pid = null;
String exe = null;
String core = null;
String s = null;
while((s = sg.next(null, longOpts)) != null) {
if (s.equals("exe")) {
exeORpid = sg.getOptarg();
exe = sg.getOptarg();
continue;
}
if (s.equals("core")) {
@ -197,7 +224,7 @@ public class SALauncher {
continue;
}
if (s.equals("pid")) {
exeORpid = sg.getOptarg();
pid = sg.getOptarg();
continue;
}
if (s.equals("mixed")) {
@ -210,13 +237,7 @@ public class SALauncher {
}
}
if (exeORpid != null) {
newArgs.add(exeORpid);
if (core != null) {
newArgs.add(core);
}
}
buildAttachArgs(newArgs, pid, exe, core);
JStack.main(newArgs.toArray(new String[newArgs.size()]));
}
@ -226,13 +247,14 @@ public class SALauncher {
"heap", "binaryheap", "histo", "clstats", "finalizerinfo"};
ArrayList<String> newArgs = new ArrayList();
String exeORpid = null;
String pid = null;
String exe = null;
String core = null;
String s = null;
while((s = sg.next(null, longOpts)) != null) {
if (s.equals("exe")) {
exeORpid = sg.getOptarg();
exe = sg.getOptarg();
continue;
}
if (s.equals("core")) {
@ -240,7 +262,7 @@ public class SALauncher {
continue;
}
if (s.equals("pid")) {
exeORpid = sg.getOptarg();
pid = sg.getOptarg();
continue;
}
if (s.equals("heap")) {
@ -265,13 +287,7 @@ public class SALauncher {
}
}
if (exeORpid != null) {
newArgs.add(exeORpid);
if (core != null) {
newArgs.add(core);
}
}
buildAttachArgs(newArgs, pid, exe, core);
JMap.main(newArgs.toArray(new String[newArgs.size()]));
}
@ -281,13 +297,14 @@ public class SALauncher {
"flags", "sysprops"};
ArrayList<String> newArgs = new ArrayList();
String exeORpid = null;
String exe = null;
String pid = null;
String core = null;
String s = null;
while((s = sg.next(null, longOpts)) != null) {
if (s.equals("exe")) {
exeORpid = sg.getOptarg();
exe = sg.getOptarg();
continue;
}
if (s.equals("core")) {
@ -295,7 +312,7 @@ public class SALauncher {
continue;
}
if (s.equals("pid")) {
exeORpid = sg.getOptarg();
pid = sg.getOptarg();
continue;
}
if (s.equals("flags")) {
@ -308,13 +325,7 @@ public class SALauncher {
}
}
if (exeORpid != null) {
newArgs.add(exeORpid);
if (core != null) {
newArgs.add(core);
}
}
buildAttachArgs(newArgs, pid, exe, core);
JInfo.main(newArgs.toArray(new String[newArgs.size()]));
}
@ -323,13 +334,14 @@ public class SALauncher {
String[] longOpts = {"exe=", "core=", "pid="};
ArrayList<String> newArgs = new ArrayList();
String exeORpid = null;
String exe = null;
String pid = null;
String core = null;
String s = null;
while((s = sg.next(null, longOpts)) != null) {
if (s.equals("exe")) {
exeORpid = sg.getOptarg();
exe = sg.getOptarg();
continue;
}
if (s.equals("core")) {
@ -337,18 +349,12 @@ public class SALauncher {
continue;
}
if (s.equals("pid")) {
exeORpid = sg.getOptarg();
pid = sg.getOptarg();
continue;
}
}
if (exeORpid != null) {
newArgs.add(exeORpid);
if (core != null) {
newArgs.add(core);
}
}
buildAttachArgs(newArgs, pid, exe, core);
JSnap.main(newArgs.toArray(new String[newArgs.size()]));
}
@ -373,36 +379,43 @@ public class SALauncher {
String[] oldArgs = Arrays.copyOfRange(args, 1, args.length);
// Run SA interactive mode
if (args[0].equals("clhsdb")) {
runCLHSDB(oldArgs);
return;
}
try {
// Run SA interactive mode
if (args[0].equals("clhsdb")) {
runCLHSDB(oldArgs);
return;
}
if (args[0].equals("hsdb")) {
runHSDB(oldArgs);
return;
}
if (args[0].equals("hsdb")) {
runHSDB(oldArgs);
return;
}
// Run SA tmtools mode
if (args[0].equals("jstack")) {
runJSTACK(oldArgs);
return;
}
// Run SA tmtools mode
if (args[0].equals("jstack")) {
runJSTACK(oldArgs);
return;
}
if (args[0].equals("jmap")) {
runJMAP(oldArgs);
return;
}
if (args[0].equals("jmap")) {
runJMAP(oldArgs);
return;
}
if (args[0].equals("jinfo")) {
runJINFO(oldArgs);
return;
}
if (args[0].equals("jinfo")) {
runJINFO(oldArgs);
return;
}
if (args[0].equals("jsnap")) {
runJSNAP(oldArgs);
return;
if (args[0].equals("jsnap")) {
runJSNAP(oldArgs);
return;
}
throw new IllegalArgumentException("Unknown tool: " + args[0]);
} catch (Exception e) {
System.err.println(e.getMessage());
toolHelp(args[0]);
}
}
}

7
hotspot/src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/gc/shared/GCCause.java
View File

@ -35,6 +35,10 @@ public enum GCCause {
_gc_locker ("GCLocker Initiated GC"),
_heap_inspection ("Heap Inspection Initiated GC"),
_heap_dump ("Heap Dump Initiated GC"),
_wb_young_gc ("WhiteBox Initiated Young GC"),
_wb_conc_mark ("WhiteBox Initiated Concurrent Mark"),
_update_allocation_context_stats_inc ("Update Allocation Context Stats"),
_update_allocation_context_stats_full ("Update Allocation Context Stats"),
_no_gc ("No GC"),
_no_cause_specified ("Unknown GCCause"),
@ -56,6 +60,9 @@ public enum GCCause {
_g1_humongous_allocation ("G1 Humongous Allocation"),
_last_ditch_collection ("Last ditch collection"),
_dcmd_gc_run ("Diagnostic Command"),
_last_gc_cause ("ILLEGAL VALUE - last gc cause - ILLEGAL VALUE");
private final String value;

20
hotspot/src/os/aix/vm/os_aix.cpp
View File

@ -910,8 +910,8 @@ bool os::create_thread(Thread* thread, ThreadType thr_type, size_t stack_size) {
log_info(os, thread)("Thread started (pthread id: " UINTX_FORMAT ", attributes: %s). ",
(uintx) tid, os::Posix::describe_pthread_attr(buf, sizeof(buf), &attr));
} else {
log_warning(os, thread)("Failed to start thread - pthread_create failed (%s) for attributes: %s.",
strerror(ret), os::Posix::describe_pthread_attr(buf, sizeof(buf), &attr));
log_warning(os, thread)("Failed to start thread - pthread_create failed (%d=%s) for attributes: %s.",
ret, os::errno_name(ret), os::Posix::describe_pthread_attr(buf, sizeof(buf), &attr));
}
pthread_attr_destroy(&attr);
@ -1178,7 +1178,7 @@ void os::die() {
size_t os::lasterror(char *buf, size_t len) {
if (errno == 0) return 0;
const char *s = ::strerror(errno);
const char *s = os::strerror(errno);
size_t n = ::strlen(s);
if (n >= len) {
n = len - 1;
@ -1714,14 +1714,14 @@ static void local_sem_post() {
if (os::Aix::on_aix()) {
int rc = ::sem_post(&sig_sem);
if (rc == -1 && !warn_only_once) {
trcVerbose("sem_post failed (errno = %d, %s)", errno, strerror(errno));
trcVerbose("sem_post failed (errno = %d, %s)", errno, os::errno_name(errno));
warn_only_once = true;
}
} else {
guarantee0(p_sig_msem != NULL);
int rc = ::msem_unlock(p_sig_msem, 0);
if (rc == -1 && !warn_only_once) {
trcVerbose("msem_unlock failed (errno = %d, %s)", errno, strerror(errno));
trcVerbose("msem_unlock failed (errno = %d, %s)", errno, os::errno_name(errno));
warn_only_once = true;
}
}
@ -1732,14 +1732,14 @@ static void local_sem_wait() {
if (os::Aix::on_aix()) {
int rc = ::sem_wait(&sig_sem);
if (rc == -1 && !warn_only_once) {
trcVerbose("sem_wait failed (errno = %d, %s)", errno, strerror(errno));
trcVerbose("sem_wait failed (errno = %d, %s)", errno, os::errno_name(errno));
warn_only_once = true;
}
} else {
guarantee0(p_sig_msem != NULL); // must init before use
int rc = ::msem_lock(p_sig_msem, 0);
if (rc == -1 && !warn_only_once) {
trcVerbose("msem_lock failed (errno = %d, %s)", errno, strerror(errno));
trcVerbose("msem_lock failed (errno = %d, %s)", errno, os::errno_name(errno));
warn_only_once = true;
}
}
@ -2203,7 +2203,7 @@ static void warn_fail_commit_memory(char* addr, size_t size, bool exec,
int err) {
warning("INFO: os::commit_memory(" PTR_FORMAT ", " SIZE_FORMAT
", %d) failed; error='%s' (errno=%d)", addr, size, exec,
strerror(err), err);
os::errno_name(err), err);
}
#endif
@ -2412,7 +2412,7 @@ static bool checked_mprotect(char* addr, size_t size, int prot) {
bool rc = ::mprotect(addr, size, prot) == 0 ? true : false;
if (!rc) {
const char* const s_errno = strerror(errno);
const char* const s_errno = os::errno_name(errno);
warning("mprotect(" PTR_FORMAT "-" PTR_FORMAT ", 0x%X) failed (%s).", addr, addr + size, prot, s_errno);
return false;
}
@ -2634,7 +2634,7 @@ OSReturn os::set_native_priority(Thread* thread, int newpri) {
if (ret != 0) {
trcVerbose("Could not change priority for thread %d to %d (error %d, %s)",
(int)thr, newpri, ret, strerror(ret));
(int)thr, newpri, ret, os::errno_name(ret));
}
return (ret == 0) ? OS_OK : OS_ERR;
}

35
hotspot/src/os/aix/vm/perfMemory_aix.cpp
View File

@ -30,6 +30,7 @@
#include "oops/oop.inline.hpp"
#include "os_aix.inline.hpp"
#include "runtime/handles.inline.hpp"
#include "runtime/os.hpp"
#include "runtime/perfMemory.hpp"
#include "services/memTracker.hpp"
#include "utilities/exceptions.hpp"
@ -101,7 +102,7 @@ static void save_memory_to_file(char* addr, size_t size) {
if (result == OS_ERR) {
if (PrintMiscellaneous && Verbose) {
warning("Could not create Perfdata save file: %s: %s\n",
destfile, strerror(errno));
destfile, os::strerror(errno));
}
} else {
int fd = result;
@ -112,7 +113,7 @@ static void save_memory_to_file(char* addr, size_t size) {
if (result == OS_ERR) {
if (PrintMiscellaneous && Verbose) {
warning("Could not write Perfdata save file: %s: %s\n",
destfile, strerror(errno));
destfile, os::strerror(errno));
}
break;
}
@ -124,7 +125,7 @@ static void save_memory_to_file(char* addr, size_t size) {
result = ::close(fd);
if (PrintMiscellaneous && Verbose) {
if (result == OS_ERR) {
warning("Could not close %s: %s\n", destfile, strerror(errno));
warning("Could not close %s: %s\n", destfile, os::strerror(errno));
}
}
}
@ -397,7 +398,7 @@ static DIR *open_directory_secure(const char* dirname) {
if (errno == ELOOP) {
warning("directory %s is a symlink and is not secure\n", dirname);
} else {
warning("could not open directory %s: %s\n", dirname, strerror(errno));
warning("could not open directory %s: %s\n", dirname, os::strerror(errno));
}
}
return dirp;
@ -507,7 +508,7 @@ static bool is_file_secure(int fd, const char *filename) {
RESTARTABLE(::fstat(fd, &statbuf), result);
if (result == OS_ERR) {
if (PrintMiscellaneous && Verbose) {
warning("fstat failed on %s: %s\n", filename, strerror(errno));
warning("fstat failed on %s: %s\n", filename, os::strerror(errno));
}
return false;
}
@ -543,7 +544,7 @@ static char* get_user_name(uid_t uid) {
if (PrintMiscellaneous && Verbose) {
if (result != 0) {
warning("Could not retrieve passwd entry: %s\n",
strerror(result));
os::strerror(result));
}
else if (p == NULL) {
// this check is added to protect against an observed problem
@ -557,7 +558,7 @@ static char* get_user_name(uid_t uid) {
// Bug Id 89052 was opened with RedHat.
//
warning("Could not retrieve passwd entry: %s\n",
strerror(errno));
os::strerror(errno));
}
else {
warning("Could not determine user name: %s\n",
@ -593,7 +594,7 @@ static char* get_user_name_slow(int vmid, TRAPS) {
"Process not found");
}
else /* EPERM */ {
THROW_MSG_0(vmSymbols::java_io_IOException(), strerror(errno));
THROW_MSG_0(vmSymbols::java_io_IOException(), os::strerror(errno));
}
}
@ -746,7 +747,7 @@ static void remove_file(const char* path) {
if (PrintMiscellaneous && Verbose && result == OS_ERR) {
if (errno != ENOENT) {
warning("Could not unlink shared memory backing"
" store file %s : %s\n", path, strerror(errno));
" store file %s : %s\n", path, os::strerror(errno));
}
}
}
@ -849,7 +850,7 @@ static bool make_user_tmp_dir(const char* dirname) {
//
if (PrintMiscellaneous && Verbose) {
warning("could not create directory %s: %s\n",
dirname, strerror(errno));
dirname, os::strerror(errno));
}
return false;
}
@ -900,7 +901,7 @@ static int create_sharedmem_resources(const char* dirname, const char* filename,
if (errno == ELOOP) {
warning("file %s is a symlink and is not secure\n", filename);
} else {
warning("could not create file %s: %s\n", filename, strerror(errno));
warning("could not create file %s: %s\n", filename, os::strerror(errno));
}
}
// Close the directory and reset the current working directory.
@ -924,7 +925,7 @@ static int create_sharedmem_resources(const char* dirname, const char* filename,
RESTARTABLE(::ftruncate(fd, (off_t)0), result);
if (result == OS_ERR) {
if (PrintMiscellaneous && Verbose) {
warning("could not truncate shared memory file: %s\n", strerror(errno));
warning("could not truncate shared memory file: %s\n", os::strerror(errno));
}
::close(fd);
return -1;
@ -933,7 +934,7 @@ static int create_sharedmem_resources(const char* dirname, const char* filename,
RESTARTABLE(::ftruncate(fd, (off_t)size), result);
if (result == OS_ERR) {
if (PrintMiscellaneous && Verbose) {
warning("could not set shared memory file size: %s\n", strerror(errno));
warning("could not set shared memory file size: %s\n", os::strerror(errno));
}
::close(fd);
return -1;
@ -968,7 +969,7 @@ static int open_sharedmem_file(const char* filename, int oflags, TRAPS) {
"Permission denied");
}
else {
THROW_MSG_0(vmSymbols::java_io_IOException(), strerror(errno));
THROW_MSG_0(vmSymbols::java_io_IOException(), os::strerror(errno));
}
}
int fd = result;
@ -1041,7 +1042,7 @@ static char* mmap_create_shared(size_t size) {
if (mapAddress == MAP_FAILED) {
if (PrintMiscellaneous && Verbose) {
warning("mmap failed - %s\n", strerror(errno));
warning("mmap failed - %s\n", os::strerror(errno));
}
remove_file(filename);
FREE_C_HEAP_ARRAY(char, filename);
@ -1109,7 +1110,7 @@ static size_t sharedmem_filesize(int fd, TRAPS) {
RESTARTABLE(::fstat(fd, &statbuf), result);
if (result == OS_ERR) {
if (PrintMiscellaneous && Verbose) {
warning("fstat failed: %s\n", strerror(errno));
warning("fstat failed: %s\n", os::strerror(errno));
}
THROW_MSG_0(vmSymbols::java_io_IOException(),
"Could not determine PerfMemory size");
@ -1231,7 +1232,7 @@ static void mmap_attach_shared(const char* user, int vmid, PerfMemory::PerfMemor
if (mapAddress == MAP_FAILED) {
if (PrintMiscellaneous && Verbose) {
warning("mmap failed: %s\n", strerror(errno));
warning("mmap failed: %s\n", os::strerror(errno));
}
THROW_MSG(vmSymbols::java_lang_OutOfMemoryError(),
"Could not map PerfMemory");

8
hotspot/src/os/bsd/vm/os_bsd.cpp
View File

@ -789,7 +789,7 @@ bool os::create_thread(Thread* thread, ThreadType thr_type, size_t stack_size) {
(uintx) tid, os::Posix::describe_pthread_attr(buf, sizeof(buf), &attr));
} else {
log_warning(os, thread)("Failed to start thread - pthread_create failed (%s) for attributes: %s.",
strerror(ret), os::Posix::describe_pthread_attr(buf, sizeof(buf), &attr));
os::errno_name(ret), os::Posix::describe_pthread_attr(buf, sizeof(buf), &attr));
}
pthread_attr_destroy(&attr);
@ -1122,7 +1122,7 @@ void os::die() {
size_t os::lasterror(char *buf, size_t len) {
if (errno == 0) return 0;
const char *s = ::strerror(errno);
const char *s = os::strerror(errno);
size_t n = ::strlen(s);
if (n >= len) {
n = len - 1;
@ -2141,7 +2141,7 @@ static void warn_fail_commit_memory(char* addr, size_t size, bool exec,
int err) {
warning("INFO: os::commit_memory(" PTR_FORMAT ", " SIZE_FORMAT
", %d) failed; error='%s' (errno=%d)", addr, size, exec,
strerror(err), err);
os::errno_name(err), err);
}
// NOTE: Bsd kernel does not really reserve the pages for us.
@ -3422,7 +3422,7 @@ void os::init(void) {
Bsd::set_page_size(getpagesize());
if (Bsd::page_size() == -1) {
fatal("os_bsd.cpp: os::init: sysconf failed (%s)", strerror(errno));
fatal("os_bsd.cpp: os::init: sysconf failed (%s)", os::strerror(errno));
}
init_page_sizes((size_t) Bsd::page_size());

37
hotspot/src/os/bsd/vm/perfMemory_bsd.cpp
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 2001, 2015, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2001, 2016, 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
@ -29,6 +29,7 @@
#include "oops/oop.inline.hpp"
#include "os_bsd.inline.hpp"
#include "runtime/handles.inline.hpp"
#include "runtime/os.hpp"
#include "runtime/perfMemory.hpp"
#include "services/memTracker.hpp"
#include "utilities/exceptions.hpp"
@ -100,7 +101,7 @@ static void save_memory_to_file(char* addr, size_t size) {
if (result == OS_ERR) {
if (PrintMiscellaneous && Verbose) {
warning("Could not create Perfdata save file: %s: %s\n",
destfile, strerror(errno));
destfile, os::strerror(errno));
}
} else {
int fd = result;
@ -111,7 +112,7 @@ static void save_memory_to_file(char* addr, size_t size) {
if (result == OS_ERR) {
if (PrintMiscellaneous && Verbose) {
warning("Could not write Perfdata save file: %s: %s\n",
destfile, strerror(errno));
destfile, os::strerror(errno));
}
break;
}
@ -123,7 +124,7 @@ static void save_memory_to_file(char* addr, size_t size) {
result = ::close(fd);
if (PrintMiscellaneous && Verbose) {
if (result == OS_ERR) {
warning("Could not close %s: %s\n", destfile, strerror(errno));
warning("Could not close %s: %s\n", destfile, os::strerror(errno));
}
}
}
@ -309,7 +310,7 @@ static DIR *open_directory_secure(const char* dirname) {
if (errno == ELOOP) {
warning("directory %s is a symlink and is not secure\n", dirname);
} else {
warning("could not open directory %s: %s\n", dirname, strerror(errno));
warning("could not open directory %s: %s\n", dirname, os::strerror(errno));
}
}
return dirp;
@ -420,7 +421,7 @@ static bool is_file_secure(int fd, const char *filename) {
RESTARTABLE(::fstat(fd, &statbuf), result);
if (result == OS_ERR) {
if (PrintMiscellaneous && Verbose) {
warning("fstat failed on %s: %s\n", filename, strerror(errno));
warning("fstat failed on %s: %s\n", filename, os::strerror(errno));
}
return false;
}
@ -459,7 +460,7 @@ static char* get_user_name(uid_t uid) {
if (PrintMiscellaneous && Verbose) {
if (result != 0) {
warning("Could not retrieve passwd entry: %s\n",
strerror(result));
os::strerror(result));
}
else if (p == NULL) {
// this check is added to protect against an observed problem
@ -473,7 +474,7 @@ static char* get_user_name(uid_t uid) {
// Bug Id 89052 was opened with RedHat.
//
warning("Could not retrieve passwd entry: %s\n",
strerror(errno));
os::strerror(errno));
}
else {
warning("Could not determine user name: %s\n",
@ -509,7 +510,7 @@ static char* get_user_name_slow(int vmid, TRAPS) {
"Process not found");
}
else /* EPERM */ {
THROW_MSG_0(vmSymbols::java_io_IOException(), strerror(errno));
THROW_MSG_0(vmSymbols::java_io_IOException(), os::strerror(errno));
}
}
@ -652,7 +653,7 @@ static void remove_file(const char* path) {
if (PrintMiscellaneous && Verbose && result == OS_ERR) {
if (errno != ENOENT) {
warning("Could not unlink shared memory backing"
" store file %s : %s\n", path, strerror(errno));
" store file %s : %s\n", path, os::strerror(errno));
}
}
}
@ -762,7 +763,7 @@ static bool make_user_tmp_dir(const char* dirname) {
//
if (PrintMiscellaneous && Verbose) {
warning("could not create directory %s: %s\n",
dirname, strerror(errno));
dirname, os::strerror(errno));
}
return false;
}
@ -804,7 +805,7 @@ static int create_sharedmem_resources(const char* dirname, const char* filename,
if (errno == ELOOP) {
warning("file %s is a symlink and is not secure\n", filename);
} else {
warning("could not create file %s: %s\n", filename, strerror(errno));
warning("could not create file %s: %s\n", filename, os::strerror(errno));
}
}
// close the directory and reset the current working directory
@ -828,7 +829,7 @@ static int create_sharedmem_resources(const char* dirname, const char* filename,
RESTARTABLE(::ftruncate(fd, (off_t)0), result);
if (result == OS_ERR) {
if (PrintMiscellaneous && Verbose) {
warning("could not truncate shared memory file: %s\n", strerror(errno));
warning("could not truncate shared memory file: %s\n", os::strerror(errno));
}
::close(fd);
return -1;
@ -837,7 +838,7 @@ static int create_sharedmem_resources(const char* dirname, const char* filename,
RESTARTABLE(::ftruncate(fd, (off_t)size), result);
if (result == OS_ERR) {
if (PrintMiscellaneous && Verbose) {
warning("could not set shared memory file size: %s\n", strerror(errno));
warning("could not set shared memory file size: %s\n", os::strerror(errno));
}
::close(fd);
return -1;
@ -887,7 +888,7 @@ static int open_sharedmem_file(const char* filename, int oflags, TRAPS) {
"Permission denied", OS_ERR);
}
else {
THROW_MSG_(vmSymbols::java_io_IOException(), strerror(errno), OS_ERR);
THROW_MSG_(vmSymbols::java_io_IOException(), os::strerror(errno), OS_ERR);
}
}
int fd = result;
@ -961,7 +962,7 @@ static char* mmap_create_shared(size_t size) {
if (mapAddress == MAP_FAILED) {
if (PrintMiscellaneous && Verbose) {
warning("mmap failed - %s\n", strerror(errno));
warning("mmap failed - %s\n", os::strerror(errno));
}
remove_file(filename);
FREE_C_HEAP_ARRAY(char, filename);
@ -1025,7 +1026,7 @@ static size_t sharedmem_filesize(int fd, TRAPS) {
RESTARTABLE(::fstat(fd, &statbuf), result);
if (result == OS_ERR) {
if (PrintMiscellaneous && Verbose) {
warning("fstat failed: %s\n", strerror(errno));
warning("fstat failed: %s\n", os::strerror(errno));
}
THROW_MSG_0(vmSymbols::java_io_IOException(),
"Could not determine PerfMemory size");
@ -1136,7 +1137,7 @@ static void mmap_attach_shared(const char* user, int vmid, PerfMemory::PerfMemor
if (mapAddress == MAP_FAILED) {
if (PrintMiscellaneous && Verbose) {
warning("mmap failed: %s\n", strerror(errno));
warning("mmap failed: %s\n", os::strerror(errno));
}
THROW_MSG(vmSymbols::java_lang_OutOfMemoryError(),
"Could not map PerfMemory");

34
hotspot/src/os/linux/vm/os_linux.cpp
View File

@ -760,7 +760,7 @@ bool os::create_thread(Thread* thread, ThreadType thr_type,
(uintx) tid, os::Posix::describe_pthread_attr(buf, sizeof(buf), &attr));
} else {
log_warning(os, thread)("Failed to start thread - pthread_create failed (%s) for attributes: %s.",
strerror(ret), os::Posix::describe_pthread_attr(buf, sizeof(buf), &attr));
os::errno_name(ret), os::Posix::describe_pthread_attr(buf, sizeof(buf), &attr));
}
pthread_attr_destroy(&attr);
@ -881,6 +881,13 @@ void os::free_thread(OSThread* osthread) {
assert(osthread != NULL, "osthread not set");
if (Thread::current()->osthread() == osthread) {
#ifdef ASSERT
sigset_t current;
sigemptyset(&current);
pthread_sigmask(SIG_SETMASK, NULL, &current);
assert(!sigismember(&current, SR_signum), "SR signal should not be blocked!");
#endif
// Restore caller's signal mask
sigset_t sigmask = osthread->caller_sigmask();
pthread_sigmask(SIG_SETMASK, &sigmask, NULL);
@ -1386,7 +1393,7 @@ void os::die() {
size_t os::lasterror(char *buf, size_t len) {
if (errno == 0) return 0;
const char *s = ::strerror(errno);
const char *s = os::strerror(errno);
size_t n = ::strlen(s);
if (n >= len) {
n = len - 1;
@ -2592,7 +2599,7 @@ static void warn_fail_commit_memory(char* addr, size_t size, bool exec,
int err) {
warning("INFO: os::commit_memory(" PTR_FORMAT ", " SIZE_FORMAT
", %d) failed; error='%s' (errno=%d)", p2i(addr), size, exec,
strerror(err), err);
os::strerror(err), err);
}
static void warn_fail_commit_memory(char* addr, size_t size,
@ -2600,7 +2607,7 @@ static void warn_fail_commit_memory(char* addr, size_t size,
int err) {
warning("INFO: os::commit_memory(" PTR_FORMAT ", " SIZE_FORMAT
", " SIZE_FORMAT ", %d) failed; error='%s' (errno=%d)", p2i(addr), size,
alignment_hint, exec, strerror(err), err);
alignment_hint, exec, os::strerror(err), err);
}
// NOTE: Linux kernel does not really reserve the pages for us.
@ -3903,7 +3910,8 @@ static void SR_handler(int sig, siginfo_t* siginfo, ucontext_t* context) {
// after sigsuspend.
int old_errno = errno;
Thread* thread = Thread::current();
Thread* thread = Thread::current_or_null_safe();
assert(thread != NULL, "Missing current thread in SR_handler");
OSThread* osthread = thread->osthread();
assert(thread->is_VM_thread() || thread->is_Java_thread(), "Must be VMThread or JavaThread");
@ -3915,7 +3923,7 @@ static void SR_handler(int sig, siginfo_t* siginfo, ucontext_t* context) {
os::SuspendResume::State state = osthread->sr.suspended();
if (state == os::SuspendResume::SR_SUSPENDED) {
sigset_t suspend_set; // signals for sigsuspend()
sigemptyset(&suspend_set);
// get current set of blocked signals and unblock resume signal
pthread_sigmask(SIG_BLOCK, NULL, &suspend_set);
sigdelset(&suspend_set, SR_signum);
@ -4169,6 +4177,7 @@ static bool call_chained_handler(struct sigaction *actp, int sig,
// try to honor the signal mask
sigset_t oset;
sigemptyset(&oset);
pthread_sigmask(SIG_SETMASK, &(actp->sa_mask), &oset);
// call into the chained handler
@ -4179,7 +4188,7 @@ static bool call_chained_handler(struct sigaction *actp, int sig,
}
// restore the signal mask
pthread_sigmask(SIG_SETMASK, &oset, 0);
pthread_sigmask(SIG_SETMASK, &oset, NULL);
}
// Tell jvm's signal handler the signal is taken care of.
return true;
@ -4564,7 +4573,7 @@ void os::init(void) {
Linux::set_page_size(sysconf(_SC_PAGESIZE));
if (Linux::page_size() == -1) {
fatal("os_linux.cpp: os::init: sysconf failed (%s)",
strerror(errno));
os::strerror(errno));
}
init_page_sizes((size_t) Linux::page_size());
@ -4580,7 +4589,7 @@ void os::init(void) {
int status;
pthread_condattr_t* _condattr = os::Linux::condAttr();
if ((status = pthread_condattr_init(_condattr)) != 0) {
fatal("pthread_condattr_init: %s", strerror(status));
fatal("pthread_condattr_init: %s", os::strerror(status));
}
// Only set the clock if CLOCK_MONOTONIC is available
if (os::supports_monotonic_clock()) {
@ -4589,7 +4598,7 @@ void os::init(void) {
warning("Unable to use monotonic clock with relative timed-waits" \
" - changes to the time-of-day clock may have adverse affects");
} else {
fatal("pthread_condattr_setclock: %s", strerror(status));
fatal("pthread_condattr_setclock: %s", os::strerror(status));
}
}
}
@ -4835,7 +4844,7 @@ int os::active_processor_count() {
log_trace(os)("active_processor_count: "
"CPU_ALLOC failed (%s) - using "
"online processor count: %d",
strerror(errno), online_cpus);
os::strerror(errno), online_cpus);
return online_cpus;
}
}
@ -4865,7 +4874,7 @@ int os::active_processor_count() {
else {
cpu_count = ::sysconf(_SC_NPROCESSORS_ONLN);
warning("sched_getaffinity failed (%s)- using online processor count (%d) "
"which may exceed available processors", strerror(errno), cpu_count);
"which may exceed available processors", os::strerror(errno), cpu_count);
}
if (cpus_p != &cpus) { // can only be true when CPU_ALLOC used
@ -5716,6 +5725,7 @@ void Parker::park(bool isAbsolute, jlong time) {
// Don't catch signals while blocked; let the running threads have the signals.
// (This allows a debugger to break into the running thread.)
sigset_t oldsigs;
sigemptyset(&oldsigs);
sigset_t* allowdebug_blocked = os::Linux::allowdebug_blocked_signals();
pthread_sigmask(SIG_BLOCK, allowdebug_blocked, &oldsigs);
#endif

37
hotspot/src/os/linux/vm/perfMemory_linux.cpp
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 2001, 2015, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2001, 2016, 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
@ -29,6 +29,7 @@
#include "oops/oop.inline.hpp"
#include "os_linux.inline.hpp"
#include "runtime/handles.inline.hpp"
#include "runtime/os.hpp"
#include "runtime/perfMemory.hpp"
#include "services/memTracker.hpp"
#include "utilities/exceptions.hpp"
@ -100,7 +101,7 @@ static void save_memory_to_file(char* addr, size_t size) {
if (result == OS_ERR) {
if (PrintMiscellaneous && Verbose) {
warning("Could not create Perfdata save file: %s: %s\n",
destfile, strerror(errno));
destfile, os::strerror(errno));
}
} else {
int fd = result;
@ -111,7 +112,7 @@ static void save_memory_to_file(char* addr, size_t size) {
if (result == OS_ERR) {
if (PrintMiscellaneous && Verbose) {
warning("Could not write Perfdata save file: %s: %s\n",
destfile, strerror(errno));
destfile, os::strerror(errno));
}
break;
}
@ -123,7 +124,7 @@ static void save_memory_to_file(char* addr, size_t size) {
result = ::close(fd);
if (PrintMiscellaneous && Verbose) {
if (result == OS_ERR) {
warning("Could not close %s: %s\n", destfile, strerror(errno));
warning("Could not close %s: %s\n", destfile, os::strerror(errno));
}
}
}
@ -308,7 +309,7 @@ static DIR *open_directory_secure(const char* dirname) {
if (errno == ELOOP) {
warning("directory %s is a symlink and is not secure\n", dirname);
} else {
warning("could not open directory %s: %s\n", dirname, strerror(errno));
warning("could not open directory %s: %s\n", dirname, os::strerror(errno));
}
}
return dirp;
@ -419,7 +420,7 @@ static bool is_file_secure(int fd, const char *filename) {
RESTARTABLE(::fstat(fd, &statbuf), result);
if (result == OS_ERR) {
if (PrintMiscellaneous && Verbose) {
warning("fstat failed on %s: %s\n", filename, strerror(errno));
warning("fstat failed on %s: %s\n", filename, os::strerror(errno));
}
return false;
}
@ -459,7 +460,7 @@ static char* get_user_name(uid_t uid) {
if (PrintMiscellaneous && Verbose) {
if (result != 0) {
warning("Could not retrieve passwd entry: %s\n",
strerror(result));
os::strerror(result));
}
else if (p == NULL) {
// this check is added to protect against an observed problem
@ -473,7 +474,7 @@ static char* get_user_name(uid_t uid) {
// Bug Id 89052 was opened with RedHat.
//
warning("Could not retrieve passwd entry: %s\n",
strerror(errno));
os::strerror(errno));
}
else {
warning("Could not determine user name: %s\n",
@ -509,7 +510,7 @@ static char* get_user_name_slow(int vmid, TRAPS) {
"Process not found");
}
else /* EPERM */ {
THROW_MSG_0(vmSymbols::java_io_IOException(), strerror(errno));
THROW_MSG_0(vmSymbols::java_io_IOException(), os::strerror(errno));
}
}
@ -664,7 +665,7 @@ static void remove_file(const char* path) {
if (PrintMiscellaneous && Verbose && result == OS_ERR) {
if (errno != ENOENT) {
warning("Could not unlink shared memory backing"
" store file %s : %s\n", path, strerror(errno));
" store file %s : %s\n", path, os::strerror(errno));
}
}
}
@ -772,7 +773,7 @@ static bool make_user_tmp_dir(const char* dirname) {
//
if (PrintMiscellaneous && Verbose) {
warning("could not create directory %s: %s\n",
dirname, strerror(errno));
dirname, os::strerror(errno));
}
return false;
}
@ -814,7 +815,7 @@ static int create_sharedmem_resources(const char* dirname, const char* filename,
if (errno == ELOOP) {
warning("file %s is a symlink and is not secure\n", filename);
} else {
warning("could not create file %s: %s\n", filename, strerror(errno));
warning("could not create file %s: %s\n", filename, os::strerror(errno));
}
}
// close the directory and reset the current working directory
@ -838,7 +839,7 @@ static int create_sharedmem_resources(const char* dirname, const char* filename,
RESTARTABLE(::ftruncate(fd, (off_t)0), result);
if (result == OS_ERR) {
if (PrintMiscellaneous && Verbose) {
warning("could not truncate shared memory file: %s\n", strerror(errno));
warning("could not truncate shared memory file: %s\n", os::strerror(errno));
}
::close(fd);
return -1;
@ -847,7 +848,7 @@ static int create_sharedmem_resources(const char* dirname, const char* filename,
RESTARTABLE(::ftruncate(fd, (off_t)size), result);
if (result == OS_ERR) {
if (PrintMiscellaneous && Verbose) {
warning("could not set shared memory file size: %s\n", strerror(errno));
warning("could not set shared memory file size: %s\n", os::strerror(errno));
}
::close(fd);
return -1;
@ -897,7 +898,7 @@ static int open_sharedmem_file(const char* filename, int oflags, TRAPS) {
"Permission denied", OS_ERR);
}
else {
THROW_MSG_(vmSymbols::java_io_IOException(), strerror(errno), OS_ERR);
THROW_MSG_(vmSymbols::java_io_IOException(), os::strerror(errno), OS_ERR);
}
}
int fd = result;
@ -970,7 +971,7 @@ static char* mmap_create_shared(size_t size) {
if (mapAddress == MAP_FAILED) {
if (PrintMiscellaneous && Verbose) {
warning("mmap failed - %s\n", strerror(errno));
warning("mmap failed - %s\n", os::strerror(errno));
}
remove_file(filename);
FREE_C_HEAP_ARRAY(char, filename);
@ -1034,7 +1035,7 @@ static size_t sharedmem_filesize(int fd, TRAPS) {
RESTARTABLE(::fstat(fd, &statbuf), result);
if (result == OS_ERR) {
if (PrintMiscellaneous && Verbose) {
warning("fstat failed: %s\n", strerror(errno));
warning("fstat failed: %s\n", os::strerror(errno));
}
THROW_MSG_0(vmSymbols::java_io_IOException(),
"Could not determine PerfMemory size");
@ -1151,7 +1152,7 @@ static void mmap_attach_shared(const char* user, int vmid, PerfMemory::PerfMemor
if (mapAddress == MAP_FAILED) {
if (PrintMiscellaneous && Verbose) {
warning("mmap failed: %s\n", strerror(errno));
warning("mmap failed: %s\n", os::strerror(errno));
}
THROW_MSG(vmSymbols::java_lang_OutOfMemoryError(),
"Could not map PerfMemory");

3
hotspot/src/os/posix/vm/os_posix.cpp
View File

@ -1144,7 +1144,8 @@ void os::WatcherThreadCrashProtection::check_crash_protection(int sig,
#define check_with_errno(check_type, cond, msg) \
do { \
int err = errno; \
check_type(cond, "%s; error='%s' (errno=%d)", msg, strerror(err), err); \
check_type(cond, "%s; error='%s' (errno=%s)", msg, os::strerror(err), \
os::errno_name(err)); \
} while (false)
#define assert_with_errno(cond, msg) check_with_errno(assert, cond, msg)

4
hotspot/src/os/solaris/vm/attachListener_solaris.cpp
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 2005, 2014, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2005, 2016, 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
@ -461,7 +461,7 @@ SolarisAttachOperation* SolarisAttachListener::dequeue() {
while ((res = ::sema_wait(wakeup())) == EINTR)
;
if (res) {
warning("sema_wait failed: %s", strerror(res));
warning("sema_wait failed: %s", os::strerror(res));
return NULL;
}

20
hotspot/src/os/solaris/vm/os_solaris.cpp
View File

@ -1009,7 +1009,7 @@ bool os::create_thread(Thread* thread, ThreadType thr_type,
(uintx) tid, describe_thr_create_attributes(buf, sizeof(buf), stack_size, flags));
} else {
log_warning(os, thread)("Failed to start thread - thr_create failed (%s) for attributes: %s.",
strerror(status), describe_thr_create_attributes(buf, sizeof(buf), stack_size, flags));
os::errno_name(status), describe_thr_create_attributes(buf, sizeof(buf), stack_size, flags));
}
if (status != 0) {
@ -1354,7 +1354,7 @@ jlong getTimeMillis() {
jlong os::javaTimeMillis() {
timeval t;
if (gettimeofday(&t, NULL) == -1) {
fatal("os::javaTimeMillis: gettimeofday (%s)", strerror(errno));
fatal("os::javaTimeMillis: gettimeofday (%s)", os::strerror(errno));
}
return jlong(t.tv_sec) * 1000 + jlong(t.tv_usec) / 1000;
}
@ -1362,7 +1362,7 @@ jlong os::javaTimeMillis() {
void os::javaTimeSystemUTC(jlong &seconds, jlong &nanos) {
timeval t;
if (gettimeofday(&t, NULL) == -1) {
fatal("os::javaTimeSystemUTC: gettimeofday (%s)", strerror(errno));
fatal("os::javaTimeSystemUTC: gettimeofday (%s)", os::strerror(errno));
}
seconds = jlong(t.tv_sec);
nanos = jlong(t.tv_usec) * 1000;
@ -2160,7 +2160,7 @@ void os::print_jni_name_suffix_on(outputStream* st, int args_size) {
size_t os::lasterror(char *buf, size_t len) {
if (errno == 0) return 0;
const char *s = ::strerror(errno);
const char *s = os::strerror(errno);
size_t n = ::strlen(s);
if (n >= len) {
n = len - 1;
@ -2369,7 +2369,7 @@ static void warn_fail_commit_memory(char* addr, size_t bytes, bool exec,
int err) {
warning("INFO: os::commit_memory(" PTR_FORMAT ", " SIZE_FORMAT
", %d) failed; error='%s' (errno=%d)", addr, bytes, exec,
strerror(err), err);
os::strerror(err), err);
}
static void warn_fail_commit_memory(char* addr, size_t bytes,
@ -2377,7 +2377,7 @@ static void warn_fail_commit_memory(char* addr, size_t bytes,
int err) {
warning("INFO: os::commit_memory(" PTR_FORMAT ", " SIZE_FORMAT
", " SIZE_FORMAT ", %d) failed; error='%s' (errno=%d)", addr, bytes,
alignment_hint, exec, strerror(err), err);
alignment_hint, exec, os::strerror(err), err);
}
int os::Solaris::commit_memory_impl(char* addr, size_t bytes, bool exec) {
@ -2758,7 +2758,7 @@ char* os::pd_attempt_reserve_memory_at(size_t bytes, char* requested_addr) {
char buf[256];
buf[0] = '\0';
if (addr == NULL) {
jio_snprintf(buf, sizeof(buf), ": %s", strerror(err));
jio_snprintf(buf, sizeof(buf), ": %s", os::strerror(err));
}
warning("attempt_reserve_memory_at: couldn't reserve " SIZE_FORMAT " bytes at "
PTR_FORMAT ": reserve_memory_helper returned " PTR_FORMAT
@ -4372,7 +4372,7 @@ void os::init(void) {
page_size = sysconf(_SC_PAGESIZE);
if (page_size == -1) {
fatal("os_solaris.cpp: os::init: sysconf failed (%s)", strerror(errno));
fatal("os_solaris.cpp: os::init: sysconf failed (%s)", os::strerror(errno));
}
init_page_sizes((size_t) page_size);
@ -4384,7 +4384,7 @@ void os::init(void) {
int fd = ::open("/dev/zero", O_RDWR);
if (fd < 0) {
fatal("os::init: cannot open /dev/zero (%s)", strerror(errno));
fatal("os::init: cannot open /dev/zero (%s)", os::strerror(errno));
} else {
Solaris::set_dev_zero_fd(fd);
@ -5625,7 +5625,7 @@ int os::fork_and_exec(char* cmd) {
if (pid < 0) {
// fork failed
warning("fork failed: %s", strerror(errno));
warning("fork failed: %s", os::strerror(errno));
return -1;
} else if (pid == 0) {

36
hotspot/src/os/solaris/vm/perfMemory_solaris.cpp
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 2001, 2015, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2001, 2016, 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
@ -102,7 +102,7 @@ static void save_memory_to_file(char* addr, size_t size) {
if (result == OS_ERR) {
if (PrintMiscellaneous && Verbose) {
warning("Could not create Perfdata save file: %s: %s\n",
destfile, strerror(errno));
destfile, os::strerror(errno));
}
} else {
@ -114,7 +114,7 @@ static void save_memory_to_file(char* addr, size_t size) {
if (result == OS_ERR) {
if (PrintMiscellaneous && Verbose) {
warning("Could not write Perfdata save file: %s: %s\n",
destfile, strerror(errno));
destfile, os::strerror(errno));
}
break;
}
@ -125,7 +125,7 @@ static void save_memory_to_file(char* addr, size_t size) {
result = ::close(fd);
if (PrintMiscellaneous && Verbose) {
if (result == OS_ERR) {
warning("Could not close %s: %s\n", destfile, strerror(errno));
warning("Could not close %s: %s\n", destfile, os::strerror(errno));
}
}
}
@ -311,7 +311,7 @@ static DIR *open_directory_secure(const char* dirname) {
if (errno == ELOOP) {
warning("directory %s is a symlink and is not secure\n", dirname);
} else {
warning("could not open directory %s: %s\n", dirname, strerror(errno));
warning("could not open directory %s: %s\n", dirname, os::strerror(errno));
}
}
return dirp;
@ -422,7 +422,7 @@ static bool is_file_secure(int fd, const char *filename) {
RESTARTABLE(::fstat(fd, &statbuf), result);
if (result == OS_ERR) {
if (PrintMiscellaneous && Verbose) {
warning("fstat failed on %s: %s\n", filename, strerror(errno));
warning("fstat failed on %s: %s\n", filename, os::strerror(errno));
}
return false;
}
@ -464,7 +464,7 @@ static char* get_user_name(uid_t uid) {
if (PrintMiscellaneous && Verbose) {
if (p == NULL) {
warning("Could not retrieve passwd entry: %s\n",
strerror(errno));
os::strerror(errno));
}
else {
warning("Could not determine user name: %s\n",
@ -500,7 +500,7 @@ static char* get_user_name_slow(int vmid, TRAPS) {
"Process not found");
}
else /* EPERM */ {
THROW_MSG_0(vmSymbols::java_io_IOException(), strerror(errno));
THROW_MSG_0(vmSymbols::java_io_IOException(), os::strerror(errno));
}
}
@ -657,7 +657,7 @@ static char* get_user_name(int vmid, TRAPS) {
// In this case, the psinfo file for the process id existed,
// but we didn't have permission to access it.
THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
strerror(errno));
os::strerror(errno));
}
// at this point, we don't know if the process id itself doesn't
@ -703,7 +703,7 @@ static void remove_file(const char* path) {
if (PrintMiscellaneous && Verbose && result == OS_ERR) {
if (errno != ENOENT) {
warning("Could not unlink shared memory backing"
" store file %s : %s\n", path, strerror(errno));
" store file %s : %s\n", path, os::strerror(errno));
}
}
}
@ -813,7 +813,7 @@ static bool make_user_tmp_dir(const char* dirname) {
//
if (PrintMiscellaneous && Verbose) {
warning("could not create directory %s: %s\n",
dirname, strerror(errno));
dirname, os::strerror(errno));
}
return false;
}
@ -855,7 +855,7 @@ static int create_sharedmem_resources(const char* dirname, const char* filename,
if (errno == ELOOP) {
warning("file %s is a symlink and is not secure\n", filename);
} else {
warning("could not create file %s: %s\n", filename, strerror(errno));
warning("could not create file %s: %s\n", filename, os::strerror(errno));
}
}
// close the directory and reset the current working directory
@ -879,7 +879,7 @@ static int create_sharedmem_resources(const char* dirname, const char* filename,
RESTARTABLE(::ftruncate(fd, (off_t)0), result);
if (result == OS_ERR) {
if (PrintMiscellaneous && Verbose) {
warning("could not truncate shared memory file: %s\n", strerror(errno));
warning("could not truncate shared memory file: %s\n", os::strerror(errno));
}
::close(fd);
return -1;
@ -888,7 +888,7 @@ static int create_sharedmem_resources(const char* dirname, const char* filename,
RESTARTABLE(::ftruncate(fd, (off_t)size), result);
if (result == OS_ERR) {
if (PrintMiscellaneous && Verbose) {
warning("could not set shared memory file size: %s\n", strerror(errno));
warning("could not set shared memory file size: %s\n", os::strerror(errno));
}
::close(fd);
return -1;
@ -916,7 +916,7 @@ static int open_sharedmem_file(const char* filename, int oflags, TRAPS) {
"Permission denied", OS_ERR);
}
else {
THROW_MSG_(vmSymbols::java_io_IOException(), strerror(errno), OS_ERR);
THROW_MSG_(vmSymbols::java_io_IOException(), os::strerror(errno), OS_ERR);
}
}
int fd = result;
@ -990,7 +990,7 @@ static char* mmap_create_shared(size_t size) {
if (mapAddress == MAP_FAILED) {
if (PrintMiscellaneous && Verbose) {
warning("mmap failed - %s\n", strerror(errno));
warning("mmap failed - %s\n", os::strerror(errno));
}
remove_file(filename);
FREE_C_HEAP_ARRAY(char, filename);
@ -1055,7 +1055,7 @@ static size_t sharedmem_filesize(int fd, TRAPS) {
RESTARTABLE(::fstat(fd, &statbuf), result);
if (result == OS_ERR) {
if (PrintMiscellaneous && Verbose) {
warning("fstat failed: %s\n", strerror(errno));
warning("fstat failed: %s\n", os::strerror(errno));
}
THROW_MSG_0(vmSymbols::java_io_IOException(),
"Could not determine PerfMemory size");
@ -1172,7 +1172,7 @@ static void mmap_attach_shared(const char* user, int vmid, PerfMemory::PerfMemor
if (mapAddress == MAP_FAILED) {
if (PrintMiscellaneous && Verbose) {
warning("mmap failed: %s\n", strerror(errno));
warning("mmap failed: %s\n", os::strerror(errno));
}
THROW_MSG(vmSymbols::java_lang_OutOfMemoryError(),
"Could not map PerfMemory");

7
hotspot/src/os/solaris/vm/threadCritical_solaris.cpp
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 2001, 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2001, 2016, 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
@ -23,6 +23,7 @@
*/
#include "precompiled.hpp"
#include "runtime/os.hpp"
#include "runtime/thread.inline.hpp"
#include "runtime/threadCritical.hpp"
@ -49,7 +50,7 @@ ThreadCritical::ThreadCritical() {
if (global_mut_owner != owner) {
if (os::Solaris::mutex_lock(&global_mut))
fatal("ThreadCritical::ThreadCritical: mutex_lock failed (%s)",
strerror(errno));
os::strerror(errno));
assert(global_mut_count == 0, "must have clean count");
assert(global_mut_owner == -1, "must have clean owner");
}
@ -68,7 +69,7 @@ ThreadCritical::~ThreadCritical() {
if (global_mut_count == 0) {
global_mut_owner = -1;
if (os::Solaris::mutex_unlock(&global_mut))
fatal("ThreadCritical::~ThreadCritical: mutex_unlock failed (%s)", strerror(errno));
fatal("ThreadCritical::~ThreadCritical: mutex_unlock failed (%s)", os::strerror(errno));
}
} else {
assert (Threads::number_of_threads() == 0, "valid only during initialization");

6
hotspot/src/os/windows/vm/os_windows.cpp
View File

@ -642,7 +642,7 @@ bool os::create_thread(Thread* thread, ThreadType thr_type,
thread_id, describe_beginthreadex_attributes(buf, sizeof(buf), stack_size, initflag));
} else {
log_warning(os, thread)("Failed to start thread - _beginthreadex failed (%s) for attributes: %s.",
strerror(errno), describe_beginthreadex_attributes(buf, sizeof(buf), stack_size, initflag));
os::errno_name(errno), describe_beginthreadex_attributes(buf, sizeof(buf), stack_size, initflag));
}
if (thread_handle == NULL) {
@ -1898,7 +1898,7 @@ size_t os::lasterror(char* buf, size_t len) {
if (errno != 0) {
// C runtime error that has no corresponding DOS error code
const char* s = strerror(errno);
const char* s = os::strerror(errno);
size_t n = strlen(s);
if (n >= len) n = len - 1;
strncpy(buf, s, n);
@ -2441,7 +2441,7 @@ LONG WINAPI topLevelExceptionFilter(struct _EXCEPTION_POINTERS* exceptionInfo) {
jio_snprintf(buf, sizeof(buf), "Execution protection violation "
"at " INTPTR_FORMAT
", unguarding " INTPTR_FORMAT ": %s", addr,
page_start, (res ? "success" : strerror(errno)));
page_start, (res ? "success" : os::strerror(errno)));
tty->print_raw_cr(buf);
}

14
hotspot/src/os/windows/vm/perfMemory_windows.cpp
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 2001, 2014, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2001, 2016, 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
@ -96,7 +96,7 @@ static void save_memory_to_file(char* addr, size_t size) {
if (fd == OS_ERR) {
if (PrintMiscellaneous && Verbose) {
warning("Could not create Perfdata save file: %s: %s\n",
destfile, strerror(errno));
destfile, os::strerror(errno));
}
} else {
for (size_t remaining = size; remaining > 0;) {
@ -105,7 +105,7 @@ static void save_memory_to_file(char* addr, size_t size) {
if (nbytes == OS_ERR) {
if (PrintMiscellaneous && Verbose) {
warning("Could not write Perfdata save file: %s: %s\n",
destfile, strerror(errno));
destfile, os::strerror(errno));
}
break;
}
@ -117,7 +117,7 @@ static void save_memory_to_file(char* addr, size_t size) {
int result = ::_close(fd);
if (PrintMiscellaneous && Verbose) {
if (result == OS_ERR) {
warning("Could not close %s: %s\n", destfile, strerror(errno));
warning("Could not close %s: %s\n", destfile, os::strerror(errno));
}
}
}
@ -497,7 +497,7 @@ static void remove_file(const char* dirname, const char* filename) {
if (PrintMiscellaneous && Verbose) {
if (errno != ENOENT) {
warning("Could not unlink shared memory backing"
" store file %s : %s\n", path, strerror(errno));
" store file %s : %s\n", path, os::strerror(errno));
}
}
}
@ -1358,7 +1358,7 @@ static HANDLE create_sharedmem_resources(const char* dirname, const char* filena
if (ret_code == OS_ERR) {
if (PrintMiscellaneous && Verbose) {
warning("Could not get status information from file %s: %s\n",
filename, strerror(errno));
filename, os::strerror(errno));
}
CloseHandle(fmh);
CloseHandle(fh);
@ -1553,7 +1553,7 @@ static size_t sharedmem_filesize(const char* filename, TRAPS) {
//
if (::stat(filename, &statbuf) == OS_ERR) {
if (PrintMiscellaneous && Verbose) {
warning("stat %s failed: %s\n", filename, strerror(errno));
warning("stat %s failed: %s\n", filename, os::strerror(errno));
}
THROW_MSG_0(vmSymbols::java_io_IOException(),
"Could not determine PerfMemory size");

74
hotspot/src/share/vm/gc/g1/dirtyCardQueue.cpp
View File

@ -110,46 +110,6 @@ DirtyCardQueue::~DirtyCardQueue() {
}
}
bool DirtyCardQueue::apply_closure(CardTableEntryClosure* cl,
bool consume,
uint worker_i) {
bool res = true;
if (_buf != NULL) {
BufferNode* node = BufferNode::make_node_from_buffer(_buf, _index);
res = apply_closure_to_buffer(cl, node, _sz, consume, worker_i);
if (res && consume) {
_index = _sz;
}
}
return res;
}
bool DirtyCardQueue::apply_closure_to_buffer(CardTableEntryClosure* cl,
BufferNode* node,
size_t buffer_size,
bool consume,
uint worker_i) {
if (cl == NULL) return true;
void** buf = BufferNode::make_buffer_from_node(node);
size_t limit = byte_index_to_index(buffer_size);
for (size_t i = byte_index_to_index(node->index()); i < limit; ++i) {
jbyte* card_ptr = static_cast<jbyte*>(buf[i]);
assert(card_ptr != NULL, "invariant");
if (!cl->do_card_ptr(card_ptr, worker_i)) {
if (consume) {
size_t new_index = index_to_byte_index(i + 1);
assert(new_index <= buffer_size, "invariant");
node->set_index(new_index);
}
return false;
}
}
if (consume) {
node->set_index(buffer_size);
}
return true;
}
DirtyCardQueueSet::DirtyCardQueueSet(bool notify_when_complete) :
PtrQueueSet(notify_when_complete),
_mut_process_closure(NULL),
@ -190,15 +150,39 @@ void DirtyCardQueueSet::handle_zero_index_for_thread(JavaThread* t) {
t->dirty_card_queue().handle_zero_index();
}
bool DirtyCardQueueSet::apply_closure_to_buffer(CardTableEntryClosure* cl,
BufferNode* node,
bool consume,
uint worker_i) {
if (cl == NULL) return true;
void** buf = BufferNode::make_buffer_from_node(node);
size_t limit = DirtyCardQueue::byte_index_to_index(buffer_size());
size_t start = DirtyCardQueue::byte_index_to_index(node->index());
for (size_t i = start; i < limit; ++i) {
jbyte* card_ptr = static_cast<jbyte*>(buf[i]);
assert(card_ptr != NULL, "invariant");
if (!cl->do_card_ptr(card_ptr, worker_i)) {
if (consume) {
size_t new_index = DirtyCardQueue::index_to_byte_index(i + 1);
assert(new_index <= buffer_size(), "invariant");
node->set_index(new_index);
}
return false;
}
}
if (consume) {
node->set_index(buffer_size());
}
return true;
}
bool DirtyCardQueueSet::mut_process_buffer(BufferNode* node) {
guarantee(_free_ids != NULL, "must be");
// claim a par id
uint worker_i = _free_ids->claim_par_id();
bool b = DirtyCardQueue::apply_closure_to_buffer(_mut_process_closure,
node, _sz,
true, worker_i);
bool b = apply_closure_to_buffer(_mut_process_closure, node, true, worker_i);
if (b) {
Atomic::inc(&_processed_buffers_mut);
}
@ -242,7 +226,7 @@ bool DirtyCardQueueSet::apply_closure_to_completed_buffer(CardTableEntryClosure*
if (nd == NULL) {
return false;
} else {
if (DirtyCardQueue::apply_closure_to_buffer(cl, nd, _sz, true, worker_i)) {
if (apply_closure_to_buffer(cl, nd, true, worker_i)) {
// Done with fully processed buffer.
deallocate_buffer(nd);
Atomic::inc(&_processed_buffers_rs_thread);
@ -261,7 +245,7 @@ void DirtyCardQueueSet::par_apply_closure_to_all_completed_buffers(CardTableEntr
BufferNode* next = nd->next();
void* actual = Atomic::cmpxchg_ptr(next, &_cur_par_buffer_node, nd);
if (actual == nd) {
bool b = DirtyCardQueue::apply_closure_to_buffer(cl, nd, _sz, false);
bool b = apply_closure_to_buffer(cl, nd, false);
guarantee(b, "Should not stop early.");
nd = next;
} else {

33
hotspot/src/share/vm/gc/g1/dirtyCardQueue.hpp
View File

@ -37,7 +37,7 @@ class CardTableEntryClosure: public CHeapObj<mtGC> {
public:
// Process the card whose card table entry is "card_ptr". If returns
// "false", terminate the iteration early.
virtual bool do_card_ptr(jbyte* card_ptr, uint worker_i = 0) = 0;
virtual bool do_card_ptr(jbyte* card_ptr, uint worker_i) = 0;
};
// A ptrQueue whose elements are "oops", pointers to object heads.
@ -52,26 +52,6 @@ public:
// Process queue entries and release resources.
void flush() { flush_impl(); }
// Apply the closure to the elements from _index to _sz. If all
// closure applications return true, then returns true. Stops
// processing after the first closure application that returns
// false, and returns false from this function. If "consume" is
// true, _index is updated to follow the last processed element.
bool apply_closure(CardTableEntryClosure* cl,
bool consume = true,
uint worker_i = 0);
// Apply the closure to the elements of "node" from it's index to
// buffer_size. If all closure applications return true, then
// returns true. Stops processing after the first closure
// application that returns false, and returns false from this
// function. If "consume" is true, the node's index is updated to
// follow the last processed element.
static bool apply_closure_to_buffer(CardTableEntryClosure* cl,
BufferNode* node,
size_t buffer_size,
bool consume = true,
uint worker_i = 0);
void **get_buf() { return _buf;}
size_t get_index() { return _index;}
void reinitialize() { _buf = 0; _sz = 0; _index = 0;}
@ -97,6 +77,17 @@ class DirtyCardQueueSet: public PtrQueueSet {
DirtyCardQueue _shared_dirty_card_queue;
// Apply the closure to the elements of "node" from it's index to
// buffer_size. If all closure applications return true, then
// returns true. Stops processing after the first closure
// application that returns false, and returns false from this
// function. If "consume" is true, the node's index is updated to
// follow the last processed element.
bool apply_closure_to_buffer(CardTableEntryClosure* cl,
BufferNode* node,
bool consume,
uint worker_i = 0);
bool mut_process_buffer(BufferNode* node);
// Protected by the _cbl_mon.

8
hotspot/src/share/vm/gc/g1/g1HeapTransition.cpp
View File

@ -82,8 +82,8 @@ public:
void G1HeapTransition::print() {
Data after(_g1_heap);
size_t eden_capacity_bytes_after_gc = _g1_heap->g1_policy()->young_list_target_length() - after._survivor_length;
size_t survivor_capacity_bytes_after_gc = _g1_heap->g1_policy()->max_survivor_regions();
size_t eden_capacity_length_after_gc = _g1_heap->g1_policy()->young_list_target_length() - after._survivor_length;
size_t survivor_capacity_length_after_gc = _g1_heap->g1_policy()->max_survivor_regions();
DetailedUsage usage;
if (log_is_enabled(Trace, gc, heap)) {
@ -100,11 +100,11 @@ void G1HeapTransition::print() {
}
log_info(gc, heap)("Eden regions: " SIZE_FORMAT "->" SIZE_FORMAT "(" SIZE_FORMAT ")",
_before._eden_length, after._eden_length, eden_capacity_bytes_after_gc);
_before._eden_length, after._eden_length, eden_capacity_length_after_gc);
log_trace(gc, heap)(" Used: 0K, Waste: 0K");
log_info(gc, heap)("Survivor regions: " SIZE_FORMAT "->" SIZE_FORMAT "(" SIZE_FORMAT ")",
_before._survivor_length, after._survivor_length, survivor_capacity_bytes_after_gc);
_before._survivor_length, after._survivor_length, survivor_capacity_length_after_gc);
log_trace(gc, heap)(" Used: " SIZE_FORMAT "K, Waste: " SIZE_FORMAT "K",
usage._survivor_used / K, ((after._survivor_length * HeapRegion::GrainBytes) - usage._survivor_used) / K);

8
hotspot/src/share/vm/gc/g1/g1MarkSweep.cpp
View File

@ -220,12 +220,6 @@ class G1AdjustPointersClosure: public HeapRegionClosure {
}
};
class G1AlwaysTrueClosure: public BoolObjectClosure {
public:
bool do_object_b(oop p) { return true; }
};
static G1AlwaysTrueClosure always_true;
void G1MarkSweep::mark_sweep_phase3() {
G1CollectedHeap* g1h = G1CollectedHeap::heap();
@ -248,7 +242,7 @@ void G1MarkSweep::mark_sweep_phase3() {
// Now adjust pointers in remaining weak roots. (All of which should
// have been cleared if they pointed to non-surviving objects.)
JNIHandles::weak_oops_do(&always_true, &GenMarkSweep::adjust_pointer_closure);
JNIHandles::weak_oops_do(&GenMarkSweep::adjust_pointer_closure);
if (G1StringDedup::is_enabled()) {
G1StringDedup::oops_do(&GenMarkSweep::adjust_pointer_closure);

9
hotspot/src/share/vm/gc/parallel/psMarkSweep.cpp
View File

@ -570,13 +570,6 @@ void PSMarkSweep::mark_sweep_phase2() {
old_gen->precompact();
}
// This should be moved to the shared markSweep code!
class PSAlwaysTrueClosure: public BoolObjectClosure {
public:
bool do_object_b(oop p) { return true; }
};
static PSAlwaysTrueClosure always_true;
void PSMarkSweep::mark_sweep_phase3() {
// Adjust the pointers to reflect the new locations
GCTraceTime(Trace, gc) tm("Phase 3: Adjust pointers", _gc_timer);
@ -603,7 +596,7 @@ void PSMarkSweep::mark_sweep_phase3() {
// Now adjust pointers in remaining weak roots. (All of which should
// have been cleared if they pointed to non-surviving objects.)
// Global (weak) JNI handles
JNIHandles::weak_oops_do(&always_true, adjust_pointer_closure());
JNIHandles::weak_oops_do(adjust_pointer_closure());
CodeBlobToOopClosure adjust_from_blobs(adjust_pointer_closure(), CodeBlobToOopClosure::FixRelocations);
CodeCache::blobs_do(&adjust_from_blobs);

9
hotspot/src/share/vm/gc/parallel/psParallelCompact.cpp
View File

@ -2125,13 +2125,6 @@ void PSParallelCompact::marking_phase(ParCompactionManager* cm,
_gc_tracer.report_object_count_after_gc(is_alive_closure());
}
// This should be moved to the shared markSweep code!
class PSAlwaysTrueClosure: public BoolObjectClosure {
public:
bool do_object_b(oop p) { return true; }
};
static PSAlwaysTrueClosure always_true;
void PSParallelCompact::adjust_roots(ParCompactionManager* cm) {
// Adjust the pointers to reflect the new locations
GCTraceTime(Trace, gc, phases) tm("Adjust Roots", &_gc_timer);
@ -2157,7 +2150,7 @@ void PSParallelCompact::adjust_roots(ParCompactionManager* cm) {
// Now adjust pointers in remaining weak roots. (All of which should
// have been cleared if they pointed to non-surviving objects.)
// Global (weak) JNI handles
JNIHandles::weak_oops_do(&always_true, &oop_closure);
JNIHandles::weak_oops_do(&oop_closure);
CodeBlobToOopClosure adjust_from_blobs(&oop_closure, CodeBlobToOopClosure::FixRelocations);
CodeCache::blobs_do(&adjust_from_blobs);

3
hotspot/src/share/vm/gc/shared/gcCause.hpp
View File

@ -33,6 +33,9 @@
// use of this class grows, we should split it into public
// and implementation-private "causes".
//
// The definitions in the SA code should be kept in sync
// with the definitions here.
//
class GCCause : public AllStatic {
public:

9
hotspot/src/share/vm/gc/shared/genCollectedHeap.cpp
View File

@ -684,15 +684,8 @@ void GenCollectedHeap::gen_process_roots(StrongRootsScope* scope,
_process_strong_tasks->all_tasks_completed(scope->n_threads());
}
class AlwaysTrueClosure: public BoolObjectClosure {
public:
bool do_object_b(oop p) { return true; }
};
static AlwaysTrueClosure always_true;
void GenCollectedHeap::gen_process_weak_roots(OopClosure* root_closure) {
JNIHandles::weak_oops_do(&always_true, root_closure);
JNIHandles::weak_oops_do(root_closure);
_young_gen->ref_processor()->weak_oops_do(root_closure);
_old_gen->ref_processor()->weak_oops_do(root_closure);
}

8
hotspot/src/share/vm/gc/shared/referenceProcessor.cpp
View File

@ -266,11 +266,6 @@ ReferenceProcessorStats ReferenceProcessor::process_discovered_references(
#ifndef PRODUCT
// Calculate the number of jni handles.
size_t ReferenceProcessor::count_jni_refs() {
class AlwaysAliveClosure: public BoolObjectClosure {
public:
virtual bool do_object_b(oop obj) { return true; }
};
class CountHandleClosure: public OopClosure {
private:
size_t _count;
@ -281,8 +276,7 @@ size_t ReferenceProcessor::count_jni_refs() {
size_t count() { return _count; }
};
CountHandleClosure global_handle_count;
AlwaysAliveClosure always_alive;
JNIHandles::weak_oops_do(&always_alive, &global_handle_count);
JNIHandles::weak_oops_do(&global_handle_count);
return global_handle_count.count();
}
#endif

25
hotspot/src/share/vm/logging/log.cpp
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2015, 2016, 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
@ -136,4 +136,27 @@ void Test_configure_stdout() {
LogConfiguration::parse_log_arguments("stdout", saved_config, NULL, NULL, log.error_stream());
os::free(saved_config);
}
static int Test_logconfiguration_subscribe_triggered = 0;
static void Test_logconfiguration_subscribe_helper() {
Test_logconfiguration_subscribe_triggered++;
}
void Test_logconfiguration_subscribe() {
ResourceMark rm;
LogHandle(logging) log;
LogConfiguration::register_update_listener(&Test_logconfiguration_subscribe_helper);
LogConfiguration::parse_log_arguments("stdout", "logging=trace", NULL, NULL, log.error_stream());
assert(Test_logconfiguration_subscribe_triggered == 1, "subscription not triggered (1)");
LogConfiguration::configure_stdout(LogLevel::Debug, true, LOG_TAGS(gc));
assert(Test_logconfiguration_subscribe_triggered == 2, "subscription not triggered (2)");
LogConfiguration::disable_logging();
assert(Test_logconfiguration_subscribe_triggered == 3, "subscription not triggered (3)");
}
#endif // PRODUCT

23
hotspot/src/share/vm/logging/logConfiguration.cpp
View File

@ -40,6 +40,9 @@
LogOutput** LogConfiguration::_outputs = NULL;
size_t LogConfiguration::_n_outputs = 0;
LogConfiguration::UpdateListenerFunction* LogConfiguration::_listener_callbacks = NULL;
size_t LogConfiguration::_n_listener_callbacks = 0;
// Stack object to take the lock for configuring the logging.
// Should only be held during the critical parts of the configuration
// (when calling configure_output or reading/modifying the outputs array).
@ -254,6 +257,7 @@ void LogConfiguration::disable_logging() {
for (size_t i = 0; i < _n_outputs; i++) {
disable_output(i);
}
notify_update_listeners();
}
void LogConfiguration::configure_stdout(LogLevelType level, bool exact_match, ...) {
@ -282,6 +286,7 @@ void LogConfiguration::configure_stdout(LogLevelType level, bool exact_match, ..
// Apply configuration to stdout (output #0), with the same decorators as before.
ConfigurationLock cl;
configure_output(0, expr, LogOutput::Stdout->decorators());
notify_update_listeners();
}
bool LogConfiguration::parse_command_line_arguments(const char* opts) {
@ -373,6 +378,7 @@ bool LogConfiguration::parse_log_arguments(const char* outputstr,
}
}
configure_output(idx, expr, decorators);
notify_update_listeners();
return true;
}
@ -471,3 +477,20 @@ void LogConfiguration::rotate_all_outputs() {
}
}
void LogConfiguration::register_update_listener(UpdateListenerFunction cb) {
assert(cb != NULL, "Should not register NULL as listener");
ConfigurationLock cl;
size_t idx = _n_listener_callbacks++;
_listener_callbacks = REALLOC_C_HEAP_ARRAY(UpdateListenerFunction,
_listener_callbacks,
_n_listener_callbacks,
mtLogging);
_listener_callbacks[idx] = cb;
}
void LogConfiguration::notify_update_listeners() {
assert(ConfigurationLock::current_thread_has_lock(), "notify_update_listeners must be called in ConfigurationLock scope (lock held)");
for (size_t i = 0; i < _n_listener_callbacks; i++) {
_listener_callbacks[i]();
}
}

21
hotspot/src/share/vm/logging/logConfiguration.hpp
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2015, 2016, 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
@ -37,10 +37,26 @@ class LogTagLevelExpression;
// kept implicitly in the LogTagSets and their LogOutputLists. During configuration the tagsets
// are iterated over and updated accordingly.
class LogConfiguration : public AllStatic {
public:
// Function for listeners
typedef void (*UpdateListenerFunction)(void);
// Register callback for config change.
// The callback is always called with ConfigurationLock held,
// hence doing log reconfiguration from the callback will deadlock.
// The main Java thread may call this callback if there is an early registration
// else the attach listener JavaThread, started via diagnostic command, will be executing thread.
// The main purpose of this callback is to see if a loglevel have been changed.
// There is no way to unregister.
static void register_update_listener(UpdateListenerFunction cb);
private:
static LogOutput** _outputs;
static size_t _n_outputs;
static UpdateListenerFunction* _listener_callbacks;
static size_t _n_listener_callbacks;
// Create a new output. Returns NULL if failed.
static LogOutput* new_output(char* name, const char* options, outputStream* errstream);
@ -60,6 +76,9 @@ class LogConfiguration : public AllStatic {
// Configure output (add or update existing configuration) to log on tag-level combination using specified decorators.
static void configure_output(size_t idx, const LogTagLevelExpression& tag_level_expression, const LogDecorators& decorators);
// This should be called after any configuration change while still holding ConfigurationLock
static void notify_update_listeners();
public:
// Initialization and finalization of log configuration, to be run at vm startup and shutdown respectively.
static void initialize(jlong vm_start_time);

12
hotspot/src/share/vm/logging/logFileOutput.cpp
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2015, 2016, 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
@ -64,7 +64,7 @@ LogFileOutput::~LogFileOutput() {
}
if (fclose(_stream) != 0) {
jio_fprintf(defaultStream::error_stream(), "Could not close log file '%s' (%s).\n",
_file_name, strerror(errno));
_file_name, os::strerror(errno));
}
}
os::free(_archive_name);
@ -139,7 +139,7 @@ bool LogFileOutput::initialize(const char* options) {
}
_stream = fopen(_file_name, FileOpenMode);
if (_stream == NULL) {
log_error(logging)("Could not open log file '%s' (%s).\n", _file_name, strerror(errno));
log_error(logging)("Could not open log file '%s' (%s).\n", _file_name, os::strerror(errno));
return false;
}
return true;
@ -176,7 +176,7 @@ void LogFileOutput::archive() {
// Rename the file from ex hotspot.log to hotspot.log.2
if (rename(_file_name, _archive_name) == -1) {
jio_fprintf(defaultStream::error_stream(), "Could not rename log file '%s' to '%s' (%s).\n",
_file_name, _archive_name, strerror(errno));
_file_name, _archive_name, os::strerror(errno));
}
}
@ -194,7 +194,7 @@ void LogFileOutput::rotate() {
if (fclose(_stream)) {
jio_fprintf(defaultStream::error_stream(), "Error closing file '%s' during log rotation (%s).\n",
_file_name, strerror(errno));
_file_name, os::strerror(errno));
}
// Archive the current log file
@ -204,7 +204,7 @@ void LogFileOutput::rotate() {
_stream = fopen(_file_name, FileOpenMode);
if (_stream == NULL) {
jio_fprintf(defaultStream::error_stream(), "Could not reopen file '%s' during log rotation (%s).\n",
_file_name, strerror(errno));
_file_name, os::strerror(errno));
return;
}

4
hotspot/src/share/vm/memory/filemap.cpp
View File

@ -363,7 +363,7 @@ bool FileMapInfo::open_for_read() {
fail_continue("Specified shared archive not found.");
} else {
fail_continue("Failed to open shared archive file (%s).",
strerror(errno));
os::strerror(errno));
}
return false;
}
@ -393,7 +393,7 @@ void FileMapInfo::open_for_write() {
int fd = open(_full_path, O_RDWR | O_CREAT | O_TRUNC | O_BINARY, 0444);
if (fd < 0) {
fail_stop("Unable to create shared archive file %s: (%s).", _full_path,
strerror(errno));
os::strerror(errno));
}
_fd = fd;
_file_offset = 0;

10
hotspot/src/share/vm/memory/iterator.hpp
View File

@ -213,6 +213,16 @@ class BoolObjectClosure : public Closure {
virtual bool do_object_b(oop obj) = 0;
};
class AlwaysTrueClosure: public BoolObjectClosure {
public:
bool do_object_b(oop p) { return true; }
};
class AlwaysFalseClosure : public BoolObjectClosure {
public:
bool do_object_b(oop p) { return false; }
};
// Applies an oop closure to all ref fields in objects iterated over in an
// object iteration.
class ObjectToOopClosure: public ObjectClosure {

6
hotspot/src/share/vm/prims/whitebox.cpp
View File

@ -33,6 +33,7 @@
#include "jvmtifiles/jvmtiEnv.hpp"
#include "memory/metadataFactory.hpp"
#include "memory/metaspaceShared.hpp"
#include "memory/iterator.hpp"
#include "memory/universe.hpp"
#include "oops/constantPool.hpp"
#include "oops/oop.inline.hpp"
@ -711,11 +712,6 @@ WB_ENTRY(jint, WB_MatchesMethod(JNIEnv* env, jobject o, jobject method, jstring
return result;
WB_END
class AlwaysFalseClosure : public BoolObjectClosure {
public:
bool do_object_b(oop p) { return false; }
};
static AlwaysFalseClosure always_false;
WB_ENTRY(void, WB_ClearMethodState(JNIEnv* env, jobject o, jobject method))

3
hotspot/src/share/vm/runtime/globals.hpp
View File

@ -1466,9 +1466,6 @@ public:
develop(bool, TraceCompiledIC, false, \
"Trace changes of compiled IC") \
\
develop(bool, TraceClearedExceptions, false, \
"Print when an exception is forcibly cleared") \
\
/* gc */ \
\
product(bool, UseSerialGC, false, \

18
hotspot/src/share/vm/runtime/jniHandles.cpp
View File

@ -25,6 +25,7 @@
#include "precompiled.hpp"
#include "classfile/systemDictionary.hpp"
#include "logging/log.hpp"
#include "memory/iterator.hpp"
#include "oops/oop.inline.hpp"
#include "prims/jvmtiExport.hpp"
#include "runtime/jniHandles.hpp"
@ -128,6 +129,12 @@ void JNIHandles::weak_oops_do(BoolObjectClosure* is_alive, OopClosure* f) {
}
void JNIHandles::weak_oops_do(OopClosure* f) {
AlwaysTrueClosure always_true;
weak_oops_do(&always_true, f);
}
void JNIHandles::initialize() {
_global_handles = JNIHandleBlock::allocate_block();
_weak_global_handles = JNIHandleBlock::allocate_block();
@ -185,11 +192,6 @@ long JNIHandles::weak_global_handle_memory_usage() {
}
class AlwaysAliveClosure: public BoolObjectClosure {
public:
bool do_object_b(oop obj) { return true; }
};
class CountHandleClosure: public OopClosure {
private:
int _count;
@ -211,9 +213,8 @@ void JNIHandles::print_on(outputStream* st) {
"JNIHandles not initialized");
CountHandleClosure global_handle_count;
AlwaysAliveClosure always_alive;
oops_do(&global_handle_count);
weak_oops_do(&always_alive, &global_handle_count);
weak_oops_do(&global_handle_count);
st->print_cr("JNI global references: %d", global_handle_count.count());
st->cr();
@ -230,10 +231,9 @@ public:
void JNIHandles::verify() {
VerifyHandleClosure verify_handle;
AlwaysAliveClosure always_alive;
oops_do(&verify_handle);
weak_oops_do(&always_alive, &verify_handle);
weak_oops_do(&verify_handle);
}

2
hotspot/src/share/vm/runtime/jniHandles.hpp
View File

@ -86,6 +86,8 @@ class JNIHandles : AllStatic {
static void oops_do(OopClosure* f);
// Traversal of weak global handles. Unreachable oops are cleared.
static void weak_oops_do(BoolObjectClosure* is_alive, OopClosure* f);
// Traversal of weak global handles.
static void weak_oops_do(OopClosure* f);
};

126
hotspot/src/share/vm/runtime/os.cpp
View File

@ -61,6 +61,7 @@
#include "utilities/events.hpp"
# include <signal.h>
# include <errno.h>
OSThread* os::_starting_thread = NULL;
address os::_polling_page = NULL;
@ -1427,6 +1428,131 @@ size_t os::page_size_for_region_unaligned(size_t region_size, size_t min_pages)
return page_size_for_region(region_size, min_pages, false);
}
static const char* errno_to_string (int e, bool short_text) {
#define ALL_SHARED_ENUMS(X) \
X(E2BIG, "Argument list too long") \
X(EACCES, "Permission denied") \
X(EADDRINUSE, "Address in use") \
X(EADDRNOTAVAIL, "Address not available") \
X(EAFNOSUPPORT, "Address family not supported") \
X(EAGAIN, "Resource unavailable, try again") \
X(EALREADY, "Connection already in progress") \
X(EBADF, "Bad file descriptor") \
X(EBADMSG, "Bad message") \
X(EBUSY, "Device or resource busy") \
X(ECANCELED, "Operation canceled") \
X(ECHILD, "No child processes") \
X(ECONNABORTED, "Connection aborted") \
X(ECONNREFUSED, "Connection refused") \
X(ECONNRESET, "Connection reset") \
X(EDEADLK, "Resource deadlock would occur") \
X(EDESTADDRREQ, "Destination address required") \
X(EDOM, "Mathematics argument out of domain of function") \
X(EEXIST, "File exists") \
X(EFAULT, "Bad address") \
X(EFBIG, "File too large") \
X(EHOSTUNREACH, "Host is unreachable") \
X(EIDRM, "Identifier removed") \
X(EILSEQ, "Illegal byte sequence") \
X(EINPROGRESS, "Operation in progress") \
X(EINTR, "Interrupted function") \
X(EINVAL, "Invalid argument") \
X(EIO, "I/O error") \
X(EISCONN, "Socket is connected") \
X(EISDIR, "Is a directory") \
X(ELOOP, "Too many levels of symbolic links") \
X(EMFILE, "Too many open files") \
X(EMLINK, "Too many links") \
X(EMSGSIZE, "Message too large") \
X(ENAMETOOLONG, "Filename too long") \
X(ENETDOWN, "Network is down") \
X(ENETRESET, "Connection aborted by network") \
X(ENETUNREACH, "Network unreachable") \
X(ENFILE, "Too many files open in system") \
X(ENOBUFS, "No buffer space available") \
X(ENODATA, "No message is available on the STREAM head read queue") \
X(ENODEV, "No such device") \
X(ENOENT, "No such file or directory") \
X(ENOEXEC, "Executable file format error") \
X(ENOLCK, "No locks available") \
X(ENOLINK, "Reserved") \
X(ENOMEM, "Not enough space") \
X(ENOMSG, "No message of the desired type") \
X(ENOPROTOOPT, "Protocol not available") \
X(ENOSPC, "No space left on device") \
X(ENOSR, "No STREAM resources") \
X(ENOSTR, "Not a STREAM") \
X(ENOSYS, "Function not supported") \
X(ENOTCONN, "The socket is not connected") \
X(ENOTDIR, "Not a directory") \
X(ENOTEMPTY, "Directory not empty") \
X(ENOTSOCK, "Not a socket") \
X(ENOTSUP, "Not supported") \
X(ENOTTY, "Inappropriate I/O control operation") \
X(ENXIO, "No such device or address") \
X(EOPNOTSUPP, "Operation not supported on socket") \
X(EOVERFLOW, "Value too large to be stored in data type") \
X(EPERM, "Operation not permitted") \
X(EPIPE, "Broken pipe") \
X(EPROTO, "Protocol error") \
X(EPROTONOSUPPORT, "Protocol not supported") \
X(EPROTOTYPE, "Protocol wrong type for socket") \
X(ERANGE, "Result too large") \
X(EROFS, "Read-only file system") \
X(ESPIPE, "Invalid seek") \
X(ESRCH, "No such process") \
X(ETIME, "Stream ioctl() timeout") \
X(ETIMEDOUT, "Connection timed out") \
X(ETXTBSY, "Text file busy") \
X(EWOULDBLOCK, "Operation would block") \
X(EXDEV, "Cross-device link")
#define DEFINE_ENTRY(e, text) { e, #e, text },
static const struct {
int v;
const char* short_text;
const char* long_text;
} table [] = {
ALL_SHARED_ENUMS(DEFINE_ENTRY)
// The following enums are not defined on all platforms.
#ifdef ESTALE
DEFINE_ENTRY(ESTALE, "Reserved")
#endif
#ifdef EDQUOT
DEFINE_ENTRY(EDQUOT, "Reserved")
#endif
#ifdef EMULTIHOP
DEFINE_ENTRY(EMULTIHOP, "Reserved")
#endif
// End marker.
{ -1, "Unknown errno", "Unknown error" }
};
#undef DEFINE_ENTRY
#undef ALL_FLAGS
int i = 0;
while (table[i].v != -1 && table[i].v != e) {
i ++;
}
return short_text ? table[i].short_text : table[i].long_text;
}
const char* os::strerror(int e) {
return errno_to_string(e, false);
}
const char* os::errno_name(int e) {
return errno_to_string(e, true);
}
#ifndef PRODUCT
void os::trace_page_sizes(const char* str, const size_t* page_sizes, int count)
{

16
hotspot/src/share/vm/runtime/os.hpp
View File

@ -617,6 +617,22 @@ class os: AllStatic {
static size_t lasterror(char *buf, size_t len);
static int get_last_error();
// Replacement for strerror().
// Will return the english description of the error (e.g. "File not found", as
// suggested in the POSIX standard.
// Will return "Unknown error" for an unknown errno value.
// Will not attempt to localize the returned string.
// Will always return a valid string which is a static constant.
// Will not change the value of errno.
static const char* strerror(int e);
// Will return the literalized version of the given errno (e.g. "EINVAL"
// for EINVAL).
// Will return "Unknown error" for an unknown errno value.
// Will always return a valid string which is a static constant.
// Will not change the value of errno.
static const char* errno_name(int e);
// Determines whether the calling process is being debugged by a user-mode debugger.
static bool is_debugger_attached();

4
hotspot/src/share/vm/services/heapDumper.cpp
View File

@ -459,7 +459,7 @@ DumpWriter::DumpWriter(const char* path) {
// if the open failed we record the error
if (_fd < 0) {
_error = (char*)os::strdup(strerror(errno));
_error = (char*)os::strdup(os::strerror(errno));
}
}
@ -509,7 +509,7 @@ void DumpWriter::write_internal(void* s, size_t len) {
if (n < 0) {
// EINTR cannot happen here, os::write will take care of that
set_error(strerror(errno));
set_error(os::strerror(errno));
os::close(file_descriptor());
set_file_descriptor(-1);
return;

5
hotspot/src/share/vm/utilities/debug.cpp
View File

@ -224,6 +224,11 @@ void report_vm_error(const char* file, int line, const char* error_msg, const ch
va_end(detail_args);
}
void report_vm_status_error(const char* file, int line, const char* error_msg,
int status, const char* detail) {
report_vm_error(file, line, error_msg, "error %s(%d), %s", os::errno_name(status), status, detail);
}
void report_fatal(const char* file, int line, const char* detail_fmt, ...)
{
if (Debugging || error_is_suppressed(file, line)) return;

12
hotspot/src/share/vm/utilities/debug.hpp
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 1997, 2015, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1997, 2016, 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
@ -137,7 +137,13 @@ do { \
// an extra arg and use strerror to convert it to a meaningful string
// like "Invalid argument", "out of memory" etc
#define vmassert_status(p, status, msg) \
vmassert(p, "error %s(%d), %s", strerror(status), status, msg)
do { \
if (!(p)) { \
report_vm_status_error(__FILE__, __LINE__, "assert(" #p ") failed", \
status, msg); \
BREAKPOINT; \
} \
} while (0)
// For backward compatibility.
#define assert_status(p, status, msg) vmassert_status(p, status, msg)
@ -209,6 +215,8 @@ void report_vm_error(const char* file, int line, const char* error_msg,
void report_vm_error(const char* file, int line, const char* error_msg,
const char* detail_fmt, ...);
#endif
void report_vm_status_error(const char* file, int line, const char* error_msg,
int status, const char* detail);
void report_fatal(const char* file, int line, const char* detail_fmt, ...) ATTRIBUTE_PRINTF(3, 4);
void report_vm_out_of_memory(const char* file, int line, size_t size, VMErrorType vm_err_type,
const char* detail_fmt, ...) ATTRIBUTE_PRINTF(5, 6);

10
hotspot/src/share/vm/utilities/exceptions.cpp
View File

@ -52,11 +52,11 @@ void ThreadShadow::set_pending_exception(oop exception, const char* file, int li
}
void ThreadShadow::clear_pending_exception() {
if (TraceClearedExceptions) {
if (_pending_exception != NULL) {
tty->print_cr("Thread::clear_pending_exception: cleared exception:");
_pending_exception->print();
}
if (_pending_exception != NULL && log_is_enabled(Debug, exceptions)) {
ResourceMark rm;
outputStream* logst = LogHandle(exceptions)::debug_stream();
logst->print("Thread::clear_pending_exception: cleared exception:");
_pending_exception->print_on(logst);
}
_pending_exception = NULL;
_exception_file = NULL;

1
hotspot/src/share/vm/utilities/internalVMTests.cpp
View File

@ -69,6 +69,7 @@ void InternalVMTests::run() {
run_unit_test(JSON_test);
run_unit_test(Test_log_length);
run_unit_test(Test_configure_stdout);
run_unit_test(Test_logconfiguration_subscribe);
run_unit_test(DirectivesParser_test);
run_unit_test(Test_TempNewSymbol);
#if INCLUDE_VM_STRUCTS

4
hotspot/src/share/vm/utilities/ostream.cpp
View File

@ -504,7 +504,7 @@ fileStream::fileStream(const char* file_name) {
if (_file != NULL) {
_need_close = true;
} else {
warning("Cannot open file %s due to %s\n", file_name, strerror(errno));
warning("Cannot open file %s due to %s\n", file_name, os::strerror(errno));
_need_close = false;
}
}
@ -514,7 +514,7 @@ fileStream::fileStream(const char* file_name, const char* opentype) {
if (_file != NULL) {
_need_close = true;
} else {
warning("Cannot open file %s due to %s\n", file_name, strerror(errno));
warning("Cannot open file %s due to %s\n", file_name, os::strerror(errno));
_need_close = false;
}
}

9
hotspot/src/share/vm/utilities/vmError.cpp
View File

@ -1260,8 +1260,9 @@ void VMError::report_and_die(int id, const char* message, const char* detail_fmt
out.print_raw("#\n# Compiler replay data is saved as:\n# ");
out.print_raw_cr(buffer);
} else {
int e = errno;
out.print_raw("#\n# Can't open file to dump replay data. Error: ");
out.print_raw_cr(strerror(os::get_last_error()));
out.print_raw_cr(os::strerror(e));
}
}
}
@ -1301,7 +1302,8 @@ void VMError::report_and_die(int id, const char* message, const char* detail_fmt
out.print_raw_cr("\" ...");
if (os::fork_and_exec(cmd) < 0) {
out.print_cr("os::fork_and_exec failed: %s (%d)", strerror(errno), errno);
out.print_cr("os::fork_and_exec failed: %s (%s=%d)",
os::strerror(errno), os::errno_name(errno), errno);
}
}
@ -1359,7 +1361,8 @@ void VM_ReportJavaOutOfMemory::doit() {
tty->print_cr("\"%s\"...", cmd);
if (os::fork_and_exec(cmd) < 0) {
tty->print_cr("os::fork_and_exec failed: %s (%d)", strerror(errno), errno);
tty->print_cr("os::fork_and_exec failed: %s (%s=%d)",
os::strerror(errno), os::errno_name(errno), errno);
}
}
}

42
hotspot/test/gc/arguments/TestSelectDefaultGC.java
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2015, 2016, 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
@ -27,9 +27,9 @@
* @bug 8068582
* @key gc
* @library /testlibrary
* @requires vm.gc=="null"
* @modules java.base/sun.misc
* java.management
* @ignore 8148239
* @run driver TestSelectDefaultGC
*/
@ -41,24 +41,40 @@ public class TestSelectDefaultGC {
output.shouldMatch(" " + option + " .*=.* " + value + " ");
}
public static void main(String[] args) throws Exception {
public static void testDefaultGC(boolean actAsServer) throws Exception {
String[] args = new String[] {
"-XX:" + (actAsServer ? "+" : "-") + "AlwaysActAsServerClassMachine",
"-XX:" + (actAsServer ? "-" : "+") + "NeverActAsServerClassMachine",
"-XX:+PrintFlagsFinal",
"-version"
};
// Start VM without specifying GC
ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-XX:+PrintFlagsFinal", "-version");
ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(args);
OutputAnalyzer output = new OutputAnalyzer(pb.start());
output.shouldHaveExitValue(0);
boolean isServerVM = Platform.isServer();
boolean isEmbeddedVM = Platform.isEmbedded();
final boolean isServer = actAsServer;
final boolean isEmbedded = Platform.isEmbedded();
// Verify GC selection
// G1 is default for non-embedded server VMs
assertVMOption(output, "UseG1GC", isServerVM && !isEmbeddedVM);
// Parallel is default for embedded server VMs
assertVMOption(output, "UseParallelGC", isServerVM && isEmbeddedVM);
assertVMOption(output, "UseParallelOldGC", isServerVM && isEmbeddedVM);
// Serial is default for non-server VMs
assertVMOption(output, "UseSerialGC", !isServerVM);
// G1 is default for non-embedded server class machines
assertVMOption(output, "UseG1GC", isServer && !isEmbedded);
// Parallel is default for embedded server class machines
assertVMOption(output, "UseParallelGC", isServer && isEmbedded);
assertVMOption(output, "UseParallelOldGC", isServer && isEmbedded);
// Serial is default for non-server class machines
assertVMOption(output, "UseSerialGC", !isServer);
// CMS is never default
assertVMOption(output, "UseConcMarkSweepGC", false);
assertVMOption(output, "UseParNewGC", false);
}
public static void main(String[] args) throws Exception {
// Test server class machine
testDefaultGC(false);
// Test non-server class machine
testDefaultGC(true);
}
}