8319875: Add macOS implementation for jcmd System.map

Reviewed-by: stuefe, szaldana
This commit is contained in:
Simon Tooke 2024-12-14 06:13:26 +00:00 committed by Thomas Stuefe
parent ebb27c2e8f
commit 3b9de117e8
9 changed files with 545 additions and 80 deletions

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@ -0,0 +1,383 @@
/*
* Copyright (c) 2023, 2024, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2023, 2024, Red Hat, Inc. and/or its affiliates.
* 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.
*
*/
#if defined(__APPLE__)
#include "precompiled.hpp"
#include "nmt/memMapPrinter.hpp"
#include "runtime/os.hpp"
#include "utilities/align.hpp"
#include "utilities/globalDefinitions.hpp"
#include "utilities/powerOfTwo.hpp"
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <libproc.h>
#include <unistd.h>
#include <mach/vm_inherit.h>
#include <mach/vm_prot.h>
#include <mach/mach_vm.h>
// maximum number of mapping records returned
static const int MAX_REGIONS_RETURNED = 1000000;
// ::mmap() on MacOS is a layer on top of Mach system calls, and will allocate in 128MB chunks.
// This code will coalesce a series of identical 128GB chunks (maybe followed by one smaller chunk
// with identical flags) into one.
// Unfortunately, two or more identically allocated contiguous sections will appear as one, if the
// first section is size 128MB. vmmap(1) has the same issue.
static const int MACOS_PARTIAL_ALLOCATION_SIZE = 128 * M;
class MappingInfo {
proc_regioninfo _rinfo;
public:
const char* _address;
size_t _size;
stringStream _share_buffer;
stringStream _type_buffer;
stringStream _protect_buffer;
stringStream _file_name;
const char* _tag_text;
MappingInfo() : _address(nullptr), _size(0), _tag_text(nullptr) {}
void reset() {
_share_buffer.reset();
_protect_buffer.reset();
_type_buffer.reset();
_file_name.reset();
_tag_text = nullptr;
}
bool canCombine(const proc_regionwithpathinfo& mem_info) {
const proc_regioninfo& n = mem_info.prp_prinfo;
bool cc = _rinfo.pri_size == MACOS_PARTIAL_ALLOCATION_SIZE
&& n.pri_address == (_rinfo.pri_address + _size)
&& n.pri_protection == _rinfo.pri_protection
&& n.pri_max_protection == _rinfo.pri_max_protection
&& n.pri_user_tag == _rinfo.pri_user_tag
&& n.pri_share_mode == _rinfo.pri_share_mode
&& n.pri_offset == 0;
return cc;
}
void combineWithFollowing(const proc_regionwithpathinfo& mem_info) {
_size += mem_info.prp_prinfo.pri_size;
}
void process(const proc_regionwithpathinfo& mem_info) {
reset();
_rinfo = mem_info.prp_prinfo;
_address = (const char*) _rinfo.pri_address;
_size = _rinfo.pri_size;
if (mem_info.prp_vip.vip_path[0] != '\0') {
_file_name.print_raw(mem_info.prp_vip.vip_path);
}
// proc_regionfilename() seems to give bad results, so we don't try to use it here.
char prot[4];
char maxprot[4];
rwbits(_rinfo.pri_protection, prot);
rwbits(_rinfo.pri_max_protection, maxprot);
_protect_buffer.print("%s/%s", prot, maxprot);
get_share_mode(_share_buffer, _rinfo);
_tag_text = tagToStr(_rinfo.pri_user_tag);
}
static void get_share_mode(outputStream& out, const proc_regioninfo& rinfo) {
static const char* share_strings[] = {
"cow", "pvt", "---", "shr", "tsh", "p/a", "s/a", "lpg"
};
assert(SM_COW == 1 && SM_LARGE_PAGE == (sizeof(share_strings)/sizeof(share_strings[0])), "share_mode contants are out of range"); // the +1 offset is intentional; see below
const bool valid_share_mode = rinfo.pri_share_mode >= SM_COW && rinfo.pri_share_mode <= SM_LARGE_PAGE;
if (valid_share_mode) {
int share_mode = rinfo.pri_share_mode;
out.print_raw(share_strings[share_mode - 1]);
} else {
out.print_cr("invalid pri_share_mode (%d)", rinfo.pri_share_mode);
assert(valid_share_mode, "invalid pri_share_mode (%d)", rinfo.pri_share_mode);
}
}
#define X1(TAG, DESCR) X2(TAG, DESCR)
#define X2(TAG, DESCRIPTION) case VM_MEMORY_ ## TAG: return # DESCRIPTION;
static const char* tagToStr(uint32_t user_tag) {
switch (user_tag) {
case 0:
return 0;
X1(MALLOC, malloc);
X1(MALLOC_SMALL, malloc_small);
X1(MALLOC_LARGE, malloc_large);
X1(MALLOC_HUGE, malloc_huge);
X1(SBRK, sbrk);
X1(REALLOC, realloc);
X1(MALLOC_TINY, malloc_tiny);
X1(MALLOC_LARGE_REUSABLE, malloc_large_reusable);
X1(MALLOC_LARGE_REUSED, malloc_lage_reused);
X1(ANALYSIS_TOOL, analysis_tool);
X1(MALLOC_NANO, malloc_nano);
X1(MALLOC_MEDIUM, malloc_medium);
X1(MALLOC_PROB_GUARD, malloc_prob_guard);
X1(MACH_MSG, malloc_msg);
X1(IOKIT, IOKit);
X1(STACK, stack);
X1(GUARD, guard);
X1(SHARED_PMAP, shared_pmap);
X1(DYLIB, dylib);
X1(UNSHARED_PMAP, unshared_pmap);
X2(APPKIT, AppKit);
X2(FOUNDATION, Foundation);
X2(COREGRAPHICS, CoreGraphics);
X2(CORESERVICES, CoreServices); // is also VM_MEMORY_CARBON
X2(JAVA, Java);
X2(COREDATA, CoreData);
X1(COREDATA_OBJECTIDS, CodeData_objectids);
X1(ATS, ats);
X1(DYLD, dyld);
X1(DYLD_MALLOC, dyld_malloc);
X1(SQLITE, sqlite);
X1(JAVASCRIPT_CORE, javascript_core);
X1(JAVASCRIPT_JIT_EXECUTABLE_ALLOCATOR, javascript_jit_executable_allocator);
X1(JAVASCRIPT_JIT_REGISTER_FILE, javascript_jit_register_file);
X1(OPENCL, OpenCL);
X2(COREIMAGE, CoreImage);
X2(IMAGEIO, ImageIO);
X2(COREPROFILE, CoreProfile);
X1(APPLICATION_SPECIFIC_1, application_specific_1);
X1(APPLICATION_SPECIFIC_16, application_specific_16);
X1(OS_ALLOC_ONCE, os_alloc_once);
X1(GENEALOGY, genealogy);
default:
static char buffer[30];
snprintf(buffer, sizeof(buffer), "user_tag=0x%x(%d)", user_tag, user_tag);
return buffer;
}
}
static void rwbits(int rw, char bits[4]) {
bits[0] = rw & VM_PROT_READ ? 'r' : '-';
bits[1] = rw & VM_PROT_WRITE ? 'w' : '-';
bits[2] = rw & VM_PROT_EXECUTE ? 'x' : '-';
bits[3] = 0;
}
};
class ProcSmapsSummary {
unsigned _num_mappings;
size_t _private;
size_t _committed; // combined committed size
size_t _reserved; // reserved but not committed
size_t _shared; // combined shared size
size_t _swapped_out; // combined amount of swapped-out memory
public:
ProcSmapsSummary() : _num_mappings(0), _private(0),
_committed(0), _shared(0), _swapped_out(0) {}
void add_mapping(const proc_regioninfo& region_info) {
_num_mappings++;
bool is_private = region_info.pri_share_mode == SM_PRIVATE
|| region_info.pri_share_mode == SM_PRIVATE_ALIASED;
bool is_shared = region_info.pri_share_mode == SM_SHARED
|| region_info.pri_share_mode == SM_SHARED_ALIASED
|| region_info.pri_share_mode == SM_TRUESHARED
|| region_info.pri_share_mode == SM_COW;
bool is_committed = region_info.pri_share_mode == SM_EMPTY
&& region_info.pri_max_protection == VM_PROT_ALL
&& ((region_info.pri_protection & VM_PROT_DEFAULT) == VM_PROT_DEFAULT);
bool is_reserved = region_info.pri_share_mode == SM_EMPTY
&& region_info.pri_max_protection == VM_PROT_ALL
&& region_info.pri_protection == VM_PROT_NONE;
_private += is_private ? region_info.pri_size : 0;
_shared += is_shared ? region_info.pri_size : 0;
_swapped_out += region_info.pri_pages_swapped_out;
_committed += is_committed ? region_info.pri_size : 0;
_reserved += is_reserved ? region_info.pri_size : 0;
}
void print_on(const MappingPrintSession& session) const {
outputStream* st = session.out();
st->print_cr("Number of mappings: %u", _num_mappings);
task_vm_info vm_info;
mach_msg_type_number_t num_out = TASK_VM_INFO_COUNT;
kern_return_t err = task_info(mach_task_self(), TASK_VM_INFO, (task_info_t)(&vm_info), &num_out);
if (err == KERN_SUCCESS) {
st->print_cr(" vsize: %llu (%llu%s)", vm_info.virtual_size, PROPERFMTARGS(vm_info.virtual_size));
st->print_cr(" rss: %llu (%llu%s)", vm_info.resident_size, PROPERFMTARGS(vm_info.resident_size));
st->print_cr(" peak rss: %llu (%llu%s)", vm_info.resident_size_peak, PROPERFMTARGS(vm_info.resident_size_peak));
st->print_cr(" page size: %d (%ld%s)", vm_info.page_size, PROPERFMTARGS((size_t)vm_info.page_size));
} else {
st->print_cr("error getting vm_info %d", err);
}
st->print_cr(" reserved: %zu (" PROPERFMT ")", _reserved, PROPERFMTARGS(_reserved));
st->print_cr(" committed: %zu (" PROPERFMT ")", _committed, PROPERFMTARGS(_committed));
st->print_cr(" private: %zu (" PROPERFMT ")", _private, PROPERFMTARGS(_private));
st->print_cr(" shared: %zu (" PROPERFMT ")", _shared, PROPERFMTARGS(_shared));
st->print_cr(" swapped out: %zu (" PROPERFMT ")", _swapped_out * vm_info.page_size, PROPERFMTARGS(_swapped_out * vm_info.page_size));
}
};
class ProcSmapsPrinter {
const MappingPrintSession& _session;
public:
ProcSmapsPrinter(const MappingPrintSession& session) :
_session(session)
{}
void print_single_mapping(const proc_regioninfo& region_info, const MappingInfo& mapping_info) const {
outputStream* st = _session.out();
#define INDENT_BY(n) \
if (st->fill_to(n) == 0) { \
st->print(" "); \
}
st->print("%#014.12llx-%#014.12llx", (uint64_t)(mapping_info._address), (uint64_t)(mapping_info._address + mapping_info._size));
INDENT_BY(38);
st->print("%12ld", mapping_info._size);
INDENT_BY(51);
st->print("%s", mapping_info._protect_buffer.base());
INDENT_BY(59);
st->print("%s", mapping_info._share_buffer.base());
st->print("%s", mapping_info._type_buffer.base());
INDENT_BY(64);
st->print("%#11llx", region_info.pri_offset);
INDENT_BY(77);
if (_session.print_nmt_info_for_region((const void*)mapping_info._address, (const void*)(mapping_info._address + mapping_info._size))) {
st->print(" ");
} else {
const char* tag = mapping_info._tag_text;
if (tag != nullptr) {
st->print("[%s] ", tag);
}
}
st->print_raw(mapping_info._file_name.base());
st->cr();
#undef INDENT_BY
}
void print_legend() const {
outputStream* st = _session.out();
st->print_cr("from, to, vsize: address range and size");
st->print_cr("prot: protection:");
st->print_cr(" rwx: read / write / execute");
st->print_cr("share: share mode:");
st->print_cr(" cow: copy on write");
st->print_cr(" pvt: private");
st->print_cr(" shr: shared");
st->print_cr(" tsh: true shared");
st->print_cr(" p/a: private aliased");
st->print_cr(" s/a: shared aliased");
st->print_cr(" lpg: large page");
st->print_cr("offset: offset from start of allocation block");
st->print_cr("vminfo: VM information (requires NMT)");
st->print_cr("file: file mapped, if mapping is not anonymous");
{
streamIndentor si(st, 16);
_session.print_nmt_flag_legend();
}
st->print_cr("file: file mapped, if mapping is not anonymous");
}
void print_header() const {
outputStream* st = _session.out();
// 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7
// 012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789
// 0x000102890000-0x000102898000 32768 r--/r-- cow 0xc000 /Users/simont/dev/openjdk/jdk/build/macos-aarch64-fastdebug-shenandoah/images/jdk/bin/java
st->print_cr("from to vsize prot share offset vminfo/file");
st->print_cr("==================================================================================================");
}
};
static bool is_interesting(const proc_regionwithpathinfo& info) {
return info.prp_prinfo.pri_share_mode != SM_EMPTY
|| info.prp_prinfo.pri_user_tag != 0
|| info.prp_vip.vip_path[0] != '\0'
|| info.prp_prinfo.pri_protection != 0
|| info.prp_prinfo.pri_max_protection != 0;
}
void MemMapPrinter::pd_print_all_mappings(const MappingPrintSession& session) {
ProcSmapsPrinter printer(session);
ProcSmapsSummary summary;
outputStream* const st = session.out();
const pid_t pid = getpid();
printer.print_legend();
st->cr();
printer.print_header();
proc_regionwithpathinfo region_info_with_path;
MappingInfo mapping_info;
uint64_t address = 0;
int region_count = 0;
while (true) {
if (++region_count > MAX_REGIONS_RETURNED) {
st->print_cr("limit of %d regions reached (results inaccurate)", region_count);
break;
}
::bzero(&region_info_with_path, sizeof(region_info_with_path));
int retval = proc_pidinfo(pid, PROC_PIDREGIONPATHINFO, (uint64_t)address, &region_info_with_path, sizeof(region_info_with_path));
if (retval <= 0) {
break;
} else if (retval < (int)sizeof(region_info_with_path)) {
st->print_cr("proc_pidinfo() returned %d", retval);
assert(false, "proc_pidinfo() returned %d", retval);
}
proc_regioninfo& region_info = region_info_with_path.prp_prinfo;
if (is_interesting(region_info_with_path)) {
if (mapping_info.canCombine(region_info_with_path)) {
mapping_info.combineWithFollowing(region_info_with_path);
} else {
// print previous mapping info
// avoid printing the empty info at the start
if (mapping_info._size != 0) {
printer.print_single_mapping(region_info, mapping_info);
}
summary.add_mapping(region_info);
mapping_info.process(region_info_with_path);
}
}
assert(region_info.pri_size > 0, "size of region is 0");
address = region_info.pri_address + region_info.pri_size;
}
printer.print_single_mapping(region_info_with_path.prp_prinfo, mapping_info);
summary.add_mapping(region_info_with_path.prp_prinfo);
st->cr();
summary.print_on(session);
st->cr();
}
#endif // __APPLE__

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@ -197,8 +197,9 @@ public:
st->print_cr("state: region state and type:");
st->print_cr(" state: committed / reserved");
st->print_cr(" type: image / mapped / private");
st->print_cr("offset: offset from start of allocation block");
st->print_cr("vminfo: VM information (requires NMT)");
st->print_cr("file: file mapped, if mapping is not anonymous");
st->print_cr("vm info: VM information (requires NMT)");
{
streamIndentor si(st, 16);
_session.print_nmt_flag_legend();

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@ -25,7 +25,7 @@
#include "precompiled.hpp"
#if defined(LINUX) || defined(_WIN64)
#if defined(LINUX) || defined(_WIN64) || defined(__APPLE__)
#include "gc/shared/collectedHeap.hpp"
#include "logging/logAsyncWriter.hpp"

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@ -30,7 +30,7 @@
#include "nmt/memTag.hpp"
#include "utilities/globalDefinitions.hpp"
#if defined(LINUX) || defined(_WIN64)
#if defined(LINUX) || defined(_WIN64) || defined(__APPLE__)
class outputStream;
class CachedNMTInformation;

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@ -140,10 +140,10 @@ void DCmd::register_dcmds(){
DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<TrimCLibcHeapDCmd>(full_export, true, false));
DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<MallocInfoDcmd>(full_export, true, false));
#endif // LINUX
#if defined(LINUX) || defined(_WIN64)
#if defined(LINUX) || defined(_WIN64) || defined(__APPLE__)
DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<SystemMapDCmd>(full_export, true,false));
DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<SystemDumpMapDCmd>(full_export, true,false));
#endif // LINUX or WINDOWS
#endif // LINUX or WINDOWS or MacOS
DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<CodeHeapAnalyticsDCmd>(full_export, true, false));
DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<CompilerDirectivesPrintDCmd>(full_export, true, false));
@ -1158,7 +1158,7 @@ void CompilationMemoryStatisticDCmd::execute(DCmdSource source, TRAPS) {
CompilationMemoryStatistic::print_all_by_size(output(), human_readable, minsize);
}
#if defined(LINUX) || defined(_WIN64)
#if defined(LINUX) || defined(_WIN64) || defined(__APPLE__)
SystemMapDCmd::SystemMapDCmd(outputStream* output, bool heap) : DCmd(output, heap) {}

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@ -822,14 +822,14 @@ public:
virtual void execute(DCmdSource source, TRAPS);
};
#if defined(LINUX) || defined(_WIN64)
#if defined(LINUX) || defined(_WIN64) || defined(__APPLE__)
class SystemMapDCmd : public DCmd {
public:
SystemMapDCmd(outputStream* output, bool heap);
static const char* name() { return "System.map"; }
static const char* description() {
return "Prints an annotated process memory map of the VM process (linux and Windows only).";
return "Prints an annotated process memory map of the VM process (linux, Windows and MacOS only).";
}
static const char* impact() { return "Medium; can be high for very large java heaps."; }
virtual void execute(DCmdSource source, TRAPS);
@ -842,12 +842,12 @@ public:
SystemDumpMapDCmd(outputStream* output, bool heap);
static const char* name() { return "System.dump_map"; }
static const char* description() {
return "Dumps an annotated process memory map to an output file (linux and Windows only).";
return "Dumps an annotated process memory map to an output file (linux, Windows and MacOS only).";
}
static const char* impact() { return "Medium; can be high for very large java heaps."; }
virtual void execute(DCmdSource source, TRAPS);
};
#endif // LINUX or WINDOWS
#endif // LINUX, WINDOWS or MACOS
#endif // SHARE_SERVICES_DIAGNOSTICCOMMAND_HPP

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@ -35,7 +35,7 @@ import java.util.regex.Pattern;
* @test
* @summary Test of diagnostic command System.map
* @library /test/lib
* @requires (os.family == "linux" | os.family == "windows")
* @requires (os.family == "linux" | os.family == "windows" | os.family == "mac")
* @modules java.base/jdk.internal.misc
* java.compiler
* java.management

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@ -31,7 +31,7 @@ import jdk.test.lib.process.OutputAnalyzer;
* @test
* @summary Test of diagnostic command System.map
* @library /test/lib
* @requires (os.family == "linux" | os.family == "windows")
* @requires (os.family == "linux" | os.family == "windows" | os.family == "mac")
* @modules java.base/jdk.internal.misc
* java.compiler
* java.management

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@ -33,80 +33,161 @@ public class SystemMapTestBase {
private static final String someSize = "\\d+";
private static final String someNumber = "(0x\\p{XDigit}+|\\d+)";
private static final String pagesize = "(4K|8K|16K|64K|2M|16M|64M)";
private static final String prot = "[rwsxp-]+";
private static final String regexBase = range + space +
someSize + space +
prot + space +
someSize + space +
someSize + space +
pagesize + space;
private static final String regexBase_committed = regexBase + "com.*";
private static final String regexBase_shared_and_committed = regexBase + "shrd,com.*";
// java heap is either committed, non-shared, or - in case of ZGC - committed and shared.
private static final String regexBase_java_heap = regexBase + "(shrd,)?com.*";
private static final String shouldMatchUnconditionally_linux[] = {
// java launcher
regexBase_committed + "/bin/java",
// libjvm
regexBase_committed + "/lib/.*/libjvm.so",
// heap segment, should be part of all user space apps on all architectures OpenJDK supports.
regexBase_committed + "\\[heap\\]",
// we should see the hs-perf data file, and it should appear as shared as well as committed
regexBase_shared_and_committed + "hsperfdata_.*"
interface MapPatterns {
String[] shouldMatchUnconditionally();
String[] shouldMatchIfNMTIsEnabled();
};
private static final String shouldMatchIfNMTIsEnabled_linux[] = {
regexBase_java_heap + "JAVAHEAP.*",
// metaspace
regexBase_committed + "META.*",
// parts of metaspace should be uncommitted
regexBase + "-" + space + "META.*",
// code cache
regexBase_committed + "CODE.*",
// Main thread stack
regexBase_committed + "STACK.*main.*"
};
// windows:
private static final String winprot = "[\\-rwxcin]*";
private static final String wintype = "[rc]-(img|map|pvt)";
private static final String winbase = range + space + someSize + space + winprot + space;
private static final String winimage = winbase + "c-img" + space + someNumber + space;
private static final String wincommitted = winbase + "(c-pvt|c-map)" + space + someNumber + space;
private static final String winreserved = winbase + "r-pvt" + space + someNumber + space;
private static final String shouldMatchUnconditionally_windows[] = {
// java launcher
winimage + ".*[\\/\\\\]bin[\\/\\\\]java[.]exe",
// libjvm
winimage + ".*[\\/\\\\]bin[\\/\\\\].*[\\/\\\\]jvm.dll"
};
private static final String shouldMatchIfNMTIsEnabled_windows[] = {
wincommitted + "JAVAHEAP.*",
// metaspace
wincommitted + "META.*",
// parts of metaspace should be uncommitted
winreserved + "META.*",
// code cache
wincommitted + "CODE.*",
// Main thread stack
wincommitted + "STACK-\\d+-main.*"
};
private final MapPatterns patternProvider;
private static final boolean isWindows = Platform.isWindows();
private static final boolean isMacOS = Platform.isOSX();
protected static String[] shouldMatchUnconditionally() {
return isWindows ? shouldMatchUnconditionally_windows : shouldMatchUnconditionally_linux;
}
protected static String[] shouldMatchIfNMTIsEnabled() {
return isWindows ? shouldMatchIfNMTIsEnabled_windows : shouldMatchIfNMTIsEnabled_linux;
protected String[] shouldMatchUnconditionally() {
return patternProvider.shouldMatchUnconditionally();
}
protected String[] shouldMatchIfNMTIsEnabled() {
return patternProvider.shouldMatchIfNMTIsEnabled();
}
protected SystemMapTestBase() {
if (Platform.isWindows()) {
patternProvider = new WindowsPatterns();
} else if (Platform.isOSX()) {
patternProvider = new MacOSPatterns();
} else {
patternProvider = new LinuxPatterns();
}
}
private static class LinuxPatterns implements MapPatterns {
private static final String prot = "[rwsxp-]+";
static final String regexBase = range + space +
someSize + space +
prot + space +
someSize + space +
someSize + space +
pagesize + space;
static final String regexBase_committed = regexBase + "com.*";
static final String regexBase_shared_and_committed = regexBase + "shrd,com.*";
// java heap is either committed, non-shared, or - in case of ZGC - committed and shared.
static final String regexBase_java_heap = regexBase + "(shrd,)?com.*";
static final String shouldMatchUnconditionally_linux[] = {
// java launcher
regexBase_committed + "/bin/java",
// libjvm
regexBase_committed + "/lib/.*/libjvm.so",
// heap segment, should be part of all user space apps on all architectures OpenJDK supports.
regexBase_committed + "\\[heap\\]",
// we should see the hs-perf data file, and it should appear as shared as well as committed
regexBase_shared_and_committed + "hsperfdata_.*"
};
static final String shouldMatchIfNMTIsEnabled_linux[] = {
regexBase_java_heap + "JAVAHEAP.*",
// metaspace
regexBase_committed + "META.*",
// parts of metaspace should be uncommitted
regexBase + "-" + space + "META.*",
// code cache
regexBase_committed + "CODE.*",
// Main thread stack
regexBase_committed + "STACK.*main.*"
};
public String[] shouldMatchUnconditionally() {
return shouldMatchUnconditionally_linux;
}
public String[] shouldMatchIfNMTIsEnabled() {
return shouldMatchIfNMTIsEnabled_linux;
}
};
private static class WindowsPatterns implements MapPatterns {
static final String winprot = "[\\-rwxcin]*";
static final String wintype = "[rc]-(img|map|pvt)";
static final String winbase = range + space + someSize + space + winprot + space;
static final String winimage = winbase + "c-img" + space + someNumber + space;
static final String wincommitted = winbase + "(c-pvt|c-map)" + space + someNumber + space;
static final String winreserved = winbase + "r-pvt" + space + someNumber + space;
static final String shouldMatchUnconditionally_windows[] = {
// java launcher
winimage + ".*[\\/\\\\]bin[\\/\\\\]java[.]exe",
// libjvm
winimage + ".*[\\/\\\\]bin[\\/\\\\].*[\\/\\\\]jvm.dll"
};
static final String shouldMatchIfNMTIsEnabled_windows[] = {
wincommitted + "JAVAHEAP.*",
// metaspace
wincommitted + "META.*",
// parts of metaspace should be uncommitted
winreserved + "META.*",
// code cache
wincommitted + "CODE.*",
// Main thread stack
wincommitted + "STACK-\\d+-main.*"
};
public String[] shouldMatchUnconditionally() {
return shouldMatchUnconditionally_windows;
}
public String[] shouldMatchIfNMTIsEnabled() {
return shouldMatchIfNMTIsEnabled_windows;
}
};
private static class MacOSPatterns implements MapPatterns {
// macOS:
static final String macprot = "[\\-rwx]*/[\\-rwx]*";
static final String macow = "cow";
static final String macprivate = "pvt";
static final String macprivate_or_shared = "(pvt|tsh-shared)";
static final String macprivatealiased = "p/a";
static final String macOSbase = range + space + someSize + space + macprot + space;
static final String shouldMatchUnconditionally_macOS[] = {
// java launcher
macOSbase + macow + space + someNumber + space + "/.*/bin/java",
// libjvm
macOSbase + macow + space + someNumber + space + "/.*/lib/server/libjvm.dylib",
// we should see the hs-perf data file, and it should appear as shared as well as committed
macOSbase + macprivate + space + someNumber + space + ".*/.*/hsperfdata_.*"
};
static final String shouldMatchIfNMTIsEnabled_macOS[] = {
// heap is private with G1GC, shared with ZGC
macOSbase + macprivate_or_shared + space + someNumber + space + "JAVAHEAP.*",
// metaspace
macOSbase + macprivate + space + someNumber + space + "META.*",
// code cache
macOSbase + macprivate + space + someNumber + space + "CODE.*",
// Main thread stack
macOSbase + macprivatealiased + space + someNumber + space + "STACK-.*-main.*"
};
public String[] shouldMatchUnconditionally() {
return shouldMatchUnconditionally_macOS;
}
public String[] shouldMatchIfNMTIsEnabled() {
return shouldMatchIfNMTIsEnabled_macOS;
}
};
}