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omrport.h
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omrport.h
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/*******************************************************************************
* Copyright (c) 1991, 2021 IBM Corp. and others
*
* This program and the accompanying materials are made available under
* the terms of the Eclipse Public License 2.0 which accompanies this
* distribution and is available at https://www.eclipse.org/legal/epl-2.0/
* or the Apache License, Version 2.0 which accompanies this distribution and
* is available at https://www.apache.org/licenses/LICENSE-2.0.
*
* This Source Code may also be made available under the following
* Secondary Licenses when the conditions for such availability set
* forth in the Eclipse Public License, v. 2.0 are satisfied: GNU
* General Public License, version 2 with the GNU Classpath
* Exception [1] and GNU General Public License, version 2 with the
* OpenJDK Assembly Exception [2].
*
* [1] https://www.gnu.org/software/classpath/license.html
* [2] http://openjdk.java.net/legal/assembly-exception.html
*
* SPDX-License-Identifier: EPL-2.0 OR Apache-2.0 OR GPL-2.0 WITH Classpath-exception-2.0 OR LicenseRef-GPL-2.0 WITH Assembly-exception
*******************************************************************************/
#if !defined(OMRPORT_H_)
#define OMRPORT_H_
/*
* @ddr_namespace: map_to_type=J9PortLibrary
*/
#include "omrcfg.h"
/* NOTE: omrportlib.h include is at the bottom of this file until its dependencies on this file can be relaxed */
/* fix for linux s390 32bit stdint vs unistd.h definition of intptr_t (see CMVC 73850) */
#if defined(LINUX) && defined(S390)
#include <stdint.h>
#endif
#include <stdarg.h> /* for va_list */
#include <stdio.h> /* For FILE */
#include <signal.h>
#include "omrcomp.h"
#include "omrthread.h"
#include "omrmemcategories.h"
#include "omrporterror.h"
#include "omrportsock.h"
#if defined(OMR_OPT_CUDA)
#include "omrcuda.h"
#endif /* OMR_OPT_CUDA */
#if defined(OMRZTPF)
#include "omrgcconsts.h"
#endif /* defined(OMRZTPF) */
#if !defined(OMR_OS_WINDOWS)
#include <unistd.h>
#endif /* !defined(OMR_OS_WINDOWS) */
#if defined(J9ZOS390)
#define PORT_ABEND_CODE 0xDED
#define PORT_ABEND_REASON_CODE 20
#define PORT_ABEND_CLEANUP_CODE 1 /* allow for normal enclave termination/cleanup processing */
#endif
/**
* @name Port library access
* @anchor PortAccess
* Macros for accessing port library.
* @{
*/
#define OMRPORT_ACCESS_FROM_OMRPORT(_omrPortLib) OMRPortLibrary *privateOmrPortLibrary = (_omrPortLib)
/** @} */
#define OMRPORTLIB privateOmrPortLibrary
/**
* @name File Operations
* @anchor PortFileOperations
* File operation modifiers.
* @{
*/
#ifdef SEEK_SET
#define EsSeekSet SEEK_SET /* Values for EsFileSeek */
#else
#define EsSeekSet 0
#endif
#ifdef SEEK_CUR
#define EsSeekCur SEEK_CUR
#else
#define EsSeekCur 1
#endif
#ifdef SEEK_END
#define EsSeekEnd SEEK_END
#else
#define EsSeekEnd 2
#endif
#define EsOpenRead 0x1 /* Values for EsFileOpen */
#define EsOpenWrite 0x2
#define EsOpenCreate 0x4
#define EsOpenTruncate 0x8
#define EsOpenAppend 0x10
#define EsOpenText 0x20
#define EsOpenCreateNew 0x40 /* Use this flag with EsOpenCreate, if this flag is specified then trying to create an existing file will fail */
#define EsOpenSync 0x80
#define EsOpenForMapping 0x100 /* Required for WinCE for file memory mapping, ignored on other platforms. WINCE is not supported so this flag is obsolete now. */
#define EsOpenForInherit 0x200 /* Use this flag such that returned handle can be inherited by child processes */
#define EsOpenCreateAlways 0x400 /* Always creates a new file, an existing file will be overwritten */
#define EsOpenCreateNoTag 0x800 /* Used for zOS only, to disable USS file tagging on JVM-generated files */
#define EsOpenShareDelete 0x1000 /* used only for windows to allow a file to be renamed while it is still open */
#define EsOpenAsynchronous 0x2000 /* used only for windows to allow a file to be opened asynchronously */
#define EsIsDir 0 /* Return values for EsFileAttr */
#define EsIsFile 1
/* Invalid file descriptor */
#define OMRPORT_INVALID_FD -1
/* Filestream Buffering modes */
#define OMRPORT_FILESTREAM_FULL_BUFFERING _IOFBF
#define OMRPORT_FILESTREAM_LINE_BUFFERING _IOLBF
#define OMRPORT_FILESTREAM_NO_BUFFERING _IONBF
/** EsMaxPath was chosen from unix MAXPATHLEN. Override in platform
* specific omrfile implementations if needed.
*/
#define EsMaxPath 1024
/** @} */
/**
* @name Sysinfo get limit success flags
* @anchor PortSharedMemorySuccessFlags
* Return codes related to sysinfo get limit operations.
* @{
* @internal OMRPORT_LIMIT* range from at 120 to 129 to avoid overlap
*/
#define OMRPORT_LIMIT_BASE 120
#define OMRPORT_LIMIT_UNLIMITED (OMRPORT_LIMIT_BASE)
#define OMRPORT_LIMIT_UNKNOWN (OMRPORT_LIMIT_BASE+1)
#define OMRPORT_LIMIT_LIMITED (OMRPORT_LIMIT_BASE+2)
/** @} */
/**
* @name Sysinfo Limits
* Flags used to indicate type of operation for omrsysinfo_get_limit
* @{
*/
#define OMRPORT_LIMIT_SOFT ((uintptr_t) 0x0)
#define OMRPORT_LIMIT_HARD ((uintptr_t) 0x80000000)
#define OMRPORT_RESOURCE_SHARED_MEMORY ((uintptr_t) 1)
#define OMRPORT_RESOURCE_ADDRESS_SPACE ((uintptr_t) 2)
#define OMRPORT_RESOURCE_CORE_FILE ((uintptr_t) 3)
#define OMRPORT_RESOURCE_CORE_FLAGS ((uintptr_t) 4)
#define OMRPORT_RESOURCE_FILE_DESCRIPTORS ((uintptr_t) 5)
#define OMRPORT_RESOURCE_DATA ((uintptr_t) 6)
/** @} */
/**
* @name Sysinfo Limits - return values
* These values are returned by omrsysinfo_get_limit in the limit parameter for the corresponding return codes.
* If a value has been determined for a limit, it is the value reurned in the limit parameter.
* @{
*/
#define OMRPORT_LIMIT_UNLIMITED_VALUE (J9CONST64(0xffffffffffffffff))
#define OMRPORT_LIMIT_UNKNOWN_VALUE (J9CONST64(0xffffffffffffffff))
/** @} */
/**
* @name OMRSIG support (optional)
* OMRSIG
* @{
*/
#if defined(OMRPORT_OMRSIG_SUPPORT)
#define OMRSIG_SIGNAL(signum, handler) omrsig_primary_signal(signum, handler)
#define OMRSIG_SIGACTION(signum, act, oldact) omrsig_primary_sigaction(signum, act, oldact)
#else /* defined(OMRPORT_OMRSIG_SUPPORT) */
#define OMRSIG_SIGNAL(signum, handler) signal(signum, handler)
#define OMRSIG_SIGACTION(signum, act, oldact) sigaction(signum, act, oldact)
#endif /* defined(OMRPORT_OMRSIG_SUPPORT) */
/** @} */
/**
* @deprecated
*
* @name Native Language Support
* Native Language Support
* @{
* @internal standards require that all VM messages be prefixed with JVM.
*/
#define J9NLS_COMMON_PREFIX "JVM"
#define J9NLS_ERROR_PREFIX ""
#define J9NLS_WARNING_PREFIX ""
#define J9NLS_INFO_PREFIX ""
#define J9NLS_ERROR_SUFFIX "E"
#define J9NLS_WARNING_SUFFIX "W"
#define J9NLS_INFO_SUFFIX "I"
/** @internal these macros construct in string literals from message ids. */
#define J9NLS_MESSAGE(id, message) ("" J9NLS_COMMON_PREFIX "" id##__PREFIX " " message)
#define J9NLS_ERROR_MESSAGE(id, message) ("" J9NLS_ERROR_PREFIX "" J9NLS_COMMON_PREFIX "" id##__PREFIX "" J9NLS_ERROR_SUFFIX " " message)
#define J9NLS_INFO_MESSAGE(id, message) ("" J9NLS_INFO_PREFIX "" J9NLS_COMMON_PREFIX "" id##__PREFIX "" J9NLS_INFO_SUFFIX " " message)
#define J9NLS_WARNING_MESSAGE(id, message) ("" J9NLS_WARNING_PREFIX "" J9NLS_COMMON_PREFIX "" id##__PREFIX "" J9NLS_WARNING_SUFFIX " " message)
/** @} */
/**
* @name Virtual Memory Access
* Flags used to describe type of the page for the virtual memory
* @{
*/
#define OMRPORT_VMEM_PAGE_FLAG_NOT_USED 0x1
#define OMRPORT_VMEM_PAGE_FLAG_FIXED 0x2
#define OMRPORT_VMEM_PAGE_FLAG_PAGEABLE 0x4
#define OMRPORT_VMEM_PAGE_FLAG_SUPERPAGE_ANY 0x8
#define OMRPORT_VMEM_PAGE_FLAG_PAGEABLE_PREFERABLE 0x10
#define OMRPORT_VMEM_PAGE_FLAG_TYPE_MASK 0x1F
/** @} */
/**
* @name Virtual Memory Access
* Flags used to create bitmap indicating memory access
* @{
*/
#define OMRPORT_VMEM_MEMORY_MODE_READ 0x00000001
#define OMRPORT_VMEM_MEMORY_MODE_WRITE 0x00000002
#define OMRPORT_VMEM_MEMORY_MODE_EXECUTE 0x00000004
#define OMRPORT_VMEM_MEMORY_MODE_COMMIT 0x00000008
#define OMRPORT_VMEM_MEMORY_MODE_VIRTUAL 0x00000010
#define OMRPORT_VMEM_MEMORY_MODE_SHARE_FILE_OPEN 0x000000200
#define OMRPORT_VMEM_MEMORY_MODE_MMAP_HUGE_PAGES 0x000000400
#define OMRPORT_VMEM_MEMORY_MODE_DOUBLE_MAP_AVAILABLE 0x000000800
#define OMRPORT_VMEM_ALLOCATE_TOP_DOWN 0x00000020
#define OMRPORT_VMEM_ALLOCATE_PERSIST 0x00000040
#define OMRPORT_VMEM_NO_AFFINITY 0x00000080
/** @} */
/**
* @name Timer Resolution
* @anchor timerResolution
* Define resolution requested in @ref omrtime::omrtime_hires_delta
* @{
*/
#define OMRPORT_TIME_DELTA_IN_SECONDS ((uint64_t) 1)
#define OMRPORT_TIME_DELTA_IN_MILLISECONDS ((uint64_t) 1000)
#define OMRPORT_TIME_DELTA_IN_MICROSECONDS ((uint64_t) 1000000)
#define OMRPORT_TIME_DELTA_IN_NANOSECONDS ((uint64_t) 1000000000)
/** @} */
#if defined(S390) || defined(J9ZOS390)
/**
* @name Constants to calculate time from high-resolution timer
* @anchor hiresConstants
* High-resolution timer can be converted into millisecond timer or nanosecond timer through appropriate
* division or multiplication (respectively). For example, 390 high-resolution timer provides accuracy to
* 1/2048 of a microsecond so, to convert hires timer to
* - nanoseconds, multiply it by 125/256
* - microseconds, divide it by 2,048
* - milliseconds, divide it by 2,048,000
* @{
*/
#define OMRPORT_TIME_HIRES_NANOTIME_NUMERATOR ((uint64_t) 125)
#define OMRPORT_TIME_HIRES_NANOTIME_DENOMINATOR ((uint64_t) 256)
#define OMRPORT_TIME_HIRES_MICROTIME_DIVISOR ((uint64_t) 2048)
#define OMRPORT_TIME_HIRES_MILLITIME_DIVISOR ((uint64_t) 2048000)
#define OMRTIME_HIRES_CLOCK_FREQUENCY ((uint64_t) 2048000000) /* Frequency is microseconds / second */
#else /* defined(S390) || defined(J9ZOS390) */
#define OMRPORT_TIME_HIRES_NANOTIME_NUMERATOR ((uint64_t) 0)
#define OMRPORT_TIME_HIRES_NANOTIME_DENOMINATOR ((uint64_t) 0)
#define OMRPORT_TIME_HIRES_MICROTIME_DIVISOR ((uint64_t) 0)
#define OMRPORT_TIME_HIRES_MILLITIME_DIVISOR ((uint64_t) 0)
#endif /* defined(S390) || defined(J9ZOS390) */
/** @} */
#if defined(LINUX) && !defined(OMRZTPF)
#define OMR_CONFIGURABLE_SUSPEND_SIGNAL
#endif /* defined(LINUX) */
/**
* @name Time Unit Conversion
* Constants used to convert between units of time.
* @{
*/
#define OMRPORT_TIME_NS_PER_MS ((uint64_t) 1000000) /* nanoseconds per millisecond */
#define OMRPORT_TIME_US_PER_SEC ((uint64_t) 1000000) /* microseconds per second */
/** @} */
/**
* @name Shared Semaphore
* Flags used to indicate type of operation for omrshsem_post/omrshsem_wait
* @{
*/
#define OMRPORT_SHSEM_MODE_DEFAULT ((uintptr_t) 0)
#define OMRPORT_SHSEM_MODE_UNDO ((uintptr_t) 1)
#define OMRPORT_SHSEM_MODE_NOWAIT ((uintptr_t) 2)
/** @} */
/**
* @name Shared Semaphore Success flags
* @anchor PortSharedSemaphoreSuccessFlags
* Success codes related to shared semaphore operations.
* @{
* @internal OMRPORT_INFO_SHSEM* range from at 100 to 109 to avoid overlap
*/
#define OMRPORT_INFO_SHSEM_BASE 100
#define OMRPORT_INFO_SHSEM_CREATED (OMRPORT_INFO_SHSEM_BASE)
#define OMRPORT_INFO_SHSEM_OPENED (OMRPORT_INFO_SHSEM_BASE+1)
#define OMRPORT_INFO_SHSEM_OPEN_UNLINKED (OMRPORT_INFO_SHSEM_BASE+2)
#define OMRPORT_INFO_SHSEM_OPENED_STALE (OMRPORT_INFO_SHSEM_BASE+3)
#define OMRPORT_INFO_SHSEM_PARTIAL (OMRPORT_INFO_SHSEM_BASE+4)
#define OMRPORT_INFO_SHSEM_STAT_PASSED (OMRPORT_INFO_SHSEM_BASE+5)
/** @} */
#define OMRSH_MAXPATH EsMaxPath
#define OMRSH_SEMAPHORE_ID "_semaphore_"
#define OMRSH_MEMORY_ID "_memory_"
#define OMRSH_DIRPERM_ABSENT ((uintptr_t)-2)
#define OMRSH_DIRPERM (0777)
#define OMRSH_PARENTDIRPERM (01777)
#define OMRSH_DIRPERM_DEFAULT (0000)
#define OMRSH_DIRPERM_DEFAULT_WITH_STICKYBIT (01000)
#define OMRSH_BASEFILEPERM (0644)
#define OMRSH_BASEFILEPERM_GROUP_RW_ACCESS (0664)
#define OMRSH_SHMEM_PERM_READ (0444)
#define OMRSH_SHMEM_PERM_READ_WRITE (0644)
#define OMRSH_SYSV_REGULAR_CONTROL_FILE 0
#define OMRSH_SYSV_OLDER_CONTROL_FILE 1
#define OMRSH_SYSV_OLDER_EMPTY_CONTROL_FILE 2
/* Flags passed to "flag" argument of omrshsem_deprecated_open(). */
#define OMRSHSEM_NO_FLAGS 0x0
#define OMRSHSEM_OPEN_FOR_STATS 0x1
#define OMRSHSEM_OPEN_FOR_DESTROY 0x2
#define OMRSHSEM_OPEN_DO_NOT_CREATE 0x4
/*
* Flags passed to "flag" argument of omrshmem_open(). Should be of type uintptr_t.
* High order 4 bits are reserved for passing the storage key testing value to omrshmem.
*/
#define OMRSHMEM_NO_FLAGS 0x0
#define OMRSHMEM_OPEN_FOR_STATS 0x1
#define OMRSHMEM_OPEN_FOR_DESTROY 0x2
#define OMRSHMEM_PRINT_STORAGE_KEY_WARNING 0x4
#define OMRSHMEM_STORAGE_KEY_TESTING 0x8
#define OMRSHMEM_OPEN_DO_NOT_CREATE 0x10
#define OMRSHMEM_STORAGE_KEY_TESTING_SHIFT ((sizeof(uintptr_t)*8)-4)
#define OMRSHMEM_STORAGE_KEY_TESTING_MASK 0xF
/* Flags passed to "flags" argument of omrshmem_getDir(). */
#define OMRSHMEM_GETDIR_APPEND_BASEDIR 0x1
#define OMRSHMEM_GETDIR_USE_USERHOME 0x2
#ifdef WIN32
#define OMRSH_BASEDIR "omrsharedresources\\"
#else
#define OMRSH_BASEDIR "omrsharedresources/"
#endif
/**
* @name Shared Memory Success flags
* @anchor PortSharedMemorySuccessFlags
* Success codes related to shared memory semaphore operations.
* @{
* @internal OMRPORT_INFO_SHMEM* range from at 110 to 119 to avoid overlap
*/
#define OMRPORT_INFO_SHMEM_BASE 110
#define OMRPORT_INFO_SHMEM_CREATED (OMRPORT_INFO_SHMEM_BASE)
#define OMRPORT_INFO_SHMEM_OPENED (OMRPORT_INFO_SHMEM_BASE+1)
#define OMRPORT_INFO_SHMEM_OPEN_UNLINKED (OMRPORT_INFO_SHMEM_BASE+2)
#define OMRPORT_INFO_SHMEM_OPENED_STALE (OMRPORT_INFO_SHMEM_BASE+3)
#define OMRPORT_INFO_SHMEM_PARTIAL (OMRPORT_INFO_SHMEM_BASE+4)
#define OMRPORT_INFO_SHMEM_STAT_PASSED (OMRPORT_INFO_SHMEM_BASE+5)
/** @} */
/**
* @name Shared Memory Eyecatcher
* @anchor PortSharedMemoryEyecatcher
* Eyecatcher written to start of a shared classes cache to identify the shared memory segment as such a cache
* @{
*/
#define OMRPORT_SHMEM_EYECATCHER "OMRSC"
#define OMRPORT_SHMEM_EYECATCHER_LENGTH 5
/** @} */
#define ROUND_UP_TO_POWEROF2(value, powerof2) (((value) + ((powerof2) - 1)) & (UDATA)~((powerof2) - 1))
#define ROUND_DOWN_TO_POWEROF2(value, powerof2) ((value) & (UDATA)~((powerof2) - 1))
typedef struct J9Permission {
uint32_t isUserWriteable : 1;
uint32_t isUserReadable : 1;
uint32_t isGroupWriteable : 1;
uint32_t isGroupReadable : 1;
uint32_t isOtherWriteable : 1;
uint32_t isOtherReadable : 1;
uint32_t : 26; /* future use */
} J9Permission;
typedef struct OMRPortShmemStatistic {
uintptr_t shmid;
uintptr_t nattach;
uintptr_t key;
uintptr_t ouid;
uintptr_t ogid;
uintptr_t cuid;
uintptr_t cgid;
char* file;
uintptr_t size;
int64_t lastAttachTime;
int64_t lastDetachTime;
int64_t lastChangeTime;
char* controlDir;
J9Permission perm;
} OMRPortShmemStatistic;
typedef struct OMRPortShsemStatistic {
uintptr_t semid;
uintptr_t ouid;
uintptr_t ogid;
uintptr_t cuid;
uintptr_t cgid;
int64_t lastOpTime;
int64_t lastChangeTime;
int32_t nsems;
J9Permission perm;
} OMRPortShsemStatistic;
/**
* Holds properties relating to a file. Can be added to in the future
* if needed.
* Note that the ownerUid and ownerGid fields are 0 on Windows.
*/
typedef struct J9FileStat {
uint32_t isFile : 1;
uint32_t isDir : 1;
uint32_t isFixed : 1;
uint32_t isRemote : 1;
uint32_t isRemovable : 1;
uint32_t : 27; /* future use */
J9Permission perm;
uintptr_t ownerUid;
uintptr_t ownerGid;
} J9FileStat;
/**
* Holds properties relating to a file system.
*/
typedef struct J9FileStatFilesystem {
uint64_t freeSizeBytes;
uint64_t totalSizeBytes;
} J9FileStatFilesystem;
/**
* A handle to a filestream.
* Private, platform specific implementation.
*/
typedef FILE OMRFileStream;
/* It is the responsibility of the user to create the storage for J9PortVMemParams.
* The structure is only needed for the lifetime of the call to omrvmem_reserve_memory_ex
* This structure must be initialized using @ref omrvmem_vmem_params_init
*/
typedef struct J9PortVmemParams {
/* Upon success we will attempt to return a pointer within [startAddress, endAddress]
* in a best effort manner unless the OMRPORT_VMEM_STRICT_ADDRESS flag is specified
* endAddress is the last address at which the user wishes the returned pointer to
* be assigned regardless of the byteAmount
* startAddress must be <= endAddress or omrvmem_reserve_memory_ex will fail
* and cause the generation of a trace assertion
*/
void *startAddress;
void *endAddress;
/* This value must be aligned to pageSize when passing this structure to omrvmem_reserve_memory_ex() */
uintptr_t byteAmount;
/* Size of the page requested, a value returned by @ref omrvmem_supported_page_sizes */
uintptr_t pageSize;
/* Flags describing type of the page requested */
uintptr_t pageFlags;
/* @mode Bitmap indicating how memory is to be reserved. Expected values combination of:
* \arg OMRPORT_VMEM_MEMORY_MODE_READ memory is readable
* \arg OMRPORT_VMEM_MEMORY_MODE_WRITE memory is writable
* \arg OMRPORT_VMEM_MEMORY_MODE_EXECUTE memory is executable
* \arg OMRPORT_VMEM_MEMORY_MODE_COMMIT commits memory as part of the reserve
* \arg OMRPORT_VMEM_MEMORY_MODE_VIRTUAL used only on z/OS
* - used to allocate memory in 4K pages using system macros instead of malloc() or __malloc31() routines
* - on 64-bit, this mode rounds up byteAmount to be aligned to 1M boundary.*
*/
uintptr_t mode;
/* [Optional] Bitmap indicating direction to follow when trying to allocate memory in a range.
* \arg OMRPORT_VMEM_ALLOC_DIR_BOTTOM_UP start at lower address and proceed towards higher one
* \arg OMRPORT_VMEM_ALLOC_DIR_TOP_DOWN start at higher address and proceed towards lower one
* \arg OMRPORT_VMEM_STRICT_ADDRESS fail if requested address is unavailable
* \arg OMRPORT_VMEM_STRICT_PAGE_SIZE fail if requested page size is unavailable
* \arg OMRPORT_VMEM_ZOS_USE2TO32G_AREA
* - applies to z/OS only, ignored on all other platforms
* - use allocator that exclusively requests memory in 2to32G region if set
* - do not use allocator that requests memory exclusively in 2to32G region if not set
* - if this flag is set and the 2to32G support is not there omrvmem_reserve_memory_ex will return failure
* \arg OMRPORT_VMEM_ALLOC_QUICK
* - enabled for Linux only
* - If set, information from /proc/self/maps is used to decide quickly if a request
* can be satisfied. If not, NULL is returned without doing a linear search.
* - If not set, do a linear search for a memory block.
* \arg OMRPORT_VMEM_ADDRESS_HINT
* - enabled for Linux and default page allocations only (has no effect on large page allocations)
* - If not set, search memory in linear scan method
* - If set, return whatever mmap gives us (only one allocation attempt)
* - this option is based on the observation that mmap would take the given address as a hint about where to place the mapping
* - this option does not apply to large page allocations as the allocation is done with shmat instead of mmap
*/
uintptr_t options;
/* Memory allocation category for storage */
uint32_t category;
/* the lowest common multiple of alignmentInBytes and pageSize should be used to determine the base address */
uintptr_t alignmentInBytes;
} J9PortVmemParams;
typedef enum J9VMemMemoryQuery {
OMRPORT_VMEM_PROCESS_PHYSICAL,
OMRPORT_VMEM_PROCESS_PRIVATE,
OMRPORT_VMEM_PROCESS_VIRTUAL,
OMRPORT_VMEM_PROCESS_EnsureWideEnum = 0x1000000
} J9VMemMemoryQuery;
#if defined(LINUX)
typedef struct OMRCgroupEntry {
int32_t hierarchyId; /**< cgroup hierarch ID*/
char *subsystem; /**< name of the subsystem*/
char *cgroup; /**< name of the cgroup*/
uint64_t flag; /**< a bit-wise flag of type OMR_CGROUP_SUBSYSTEM_* representing the cgroup*/
struct OMRCgroupEntry *next; /**< pointer to next OMRCgroupEntry*/
} OMRCgroupEntry;
#endif /* defined(LINUX) */
typedef struct OMRCgroupMetricElement {
const char *units;
char value[128];
} OMRCgroupMetricElement;
typedef struct OMRCgroupMetricIteratorState {
uint32_t count;
uint32_t numElements;
uint64_t subsystemid;
int32_t fileMetricCounter;
char *fileContent;
} OMRCgroupMetricIteratorState;
/**
* @name Virtual Memory Options
* Flags used to create bitmap indicating vmem options
* See J9PortVmemParams.options
*
*/
#define OMRPORT_VMEM_ALLOC_DIR_BOTTOM_UP 1
#define OMRPORT_VMEM_ALLOC_DIR_TOP_DOWN 2
#define OMRPORT_VMEM_STRICT_ADDRESS 4
#define OMRPORT_VMEM_STRICT_PAGE_SIZE 8
#define OMRPORT_VMEM_ZOS_USE2TO32G_AREA 16
#define OMRPORT_VMEM_ALLOC_QUICK 32
#define OMRPORT_VMEM_ZTPF_USE_31BIT_MALLOC 64
#define OMRPORT_VMEM_ADDRESS_HINT 128
/**
* @name Virtual Memory Address
* highest memory address on platform
*
*/
#if defined(J9ZOS390) && !defined(OMR_ENV_DATA64)
/* z/OS 31-bit uses signed pointer comparison so this UDATA_MAX maximum address becomes -1 which is less than the minimum address of 0 so use IDATA_MAX instead */
#define OMRPORT_VMEM_MAX_ADDRESS ((void *) IDATA_MAX)
#else /* defined(J9ZOS390) && !defined(OMR_ENV_DATA64) */
#define OMRPORT_VMEM_MAX_ADDRESS ((void *) UDATA_MAX)
#endif /* defined(J9ZOS390) && !defined(OMR_ENV_DATA64) */
/**
* @name Memory Tagging
* Eye catcher and header/footer used for tagging omrmem allocation blocks
*
*/
#define J9MEMTAG_TAG_CORRUPTION 0xFFFFFFFF
#define J9MEMTAG_VERSION 0
#define J9MEMTAG_EYECATCHER_ALLOC_HEADER 0xB1234567
#define J9MEMTAG_EYECATCHER_ALLOC_FOOTER 0xB7654321
#define J9MEMTAG_EYECATCHER_FREED_HEADER 0xBADBAD67
#define J9MEMTAG_EYECATCHER_FREED_FOOTER 0xBADBAD21
#define J9MEMTAG_PADDING_BYTE 0xDD
typedef struct J9MemTag {
uint32_t eyeCatcher;
uint32_t sumCheck;
uintptr_t allocSize;
const char *callSite;
OMRMemCategory *category;
#if !defined(OMR_ENV_DATA64)
/* omrmem_allocate_memory should return addresses aligned to 8 bytes for
* performance reasons. On 32 bit platforms we have to pad to achieve this.
*/
uint8_t padding[4];
#endif
} J9MemTag;
#if defined(LINUX) || defined(OSX)
/**
* @name Linux OS Dump Eyecatcher
*
*/
#define J9OSDUMP_EYECATCHER 0x19810924
#if defined(OMR_ENV_DATA64)
#define J9OSDUMP_SIZE (192 * 1024)
#else
#define J9OSDUMP_SIZE (128 * 1024)
#endif
#endif /* defined(LINUX) || defined(OSX) */
/* omrfile_chown takes unsigned arguments for user/group IDs, but uses -1 to indicate that group/user id are not to be changed */
#define OMRPORT_FILE_IGNORE_ID UDATA_MAX
/* Used by omrsysinfo_limit_iterator_init/next functions */
typedef struct J9SysinfoUserLimitElement {
/* Null terminated string */
const char *name;
uint64_t softValue;
uint64_t hardValue;
/** 1. If the OS indicates a limit is set to unlimited, the corresponding soft/hard value will be set to
* OMRPORT_LIMIT_UNLIMITED
* 2. There may not be the notion of a hard value on some platforms (for example Windows), in which case
* the hard value will be set to OMRPORT_LIMIT_UNLIMITED.
*/
} J9SysinfoUserLimitElement;
typedef struct J9SysinfoLimitIteratorState {
uint32_t count;
uint32_t numElements;
} J9SysinfoLimitIteratorState;
/* Used by omrsysinfo_env_iterator_init/next functions */
typedef struct J9SysinfoEnvElement {
/* Null terminated string in format "name=value" */
const char *nameAndValue;
} J9SysinfoEnvElement;
typedef struct J9SysinfoEnvIteratorState {
void *current; /* to be used exclusively by the port library */
void *buffer; /* caller-allocated buffer. This can be freed by the caller once they have finished using the iterator. */
uintptr_t bufferSizeBytes; /* size of @ref buffer */
} J9SysinfoEnvIteratorState;
/* Used by omrsysinfo_get_CPU_utilization() */
typedef struct J9SysinfoCPUTime {
int64_t timestamp; /* time in nanoseconds from a fixed but arbitrary point in time */
int64_t cpuTime; /* cumulative CPU utilization (sum of system and user time in nanoseconds) of all CPUs on the system. */
int32_t numberOfCpus; /* number of CPUs as reported by the operating system */
} J9SysinfoCPUTime;
/* Key memory categories are copied here for DDR access */
/* Special memory category for memory allocated for unknown categories */
#define OMRMEM_CATEGORY_UNKNOWN 0x80000000
/* Special memory category for memory allocated for the port library itself */
#define OMRMEM_CATEGORY_PORT_LIBRARY 0x80000001
/* Special memory category for *unused* sections of regions allocated for <32bit allocations on 64 bit.
* The used sections will be accounted for under the categories they are used by. */
#define OMRMEM_CATEGORY_PORT_LIBRARY_UNUSED_ALLOCATE32_REGIONS 0x80000009
#define J9MEM_CATEGORIES_KEEP_ITERATING 0
#define J9MEM_CATEGORIES_STOP_ITERATING 1
/**
* State data for memory category walk
* @see omrmem_walk_categories(
*/
typedef struct OMRMemCategoryWalkState {
/**
* Callback function called from omrmemory_walk_categories with memory category data.
*
* @param [in] categoryCode Code identifying memory category
* @param [in] categoryName Name of category
* @param [in] liveBytes Bytes outstanding (allocated but not freed) for this category
* @param [in] liveAllocations Number of allocations outstanding (not freed) for this category
* @param [in] isRoot True if this node is a root (i.e. does not have a parent)
* @param [in] parentCategoryCode Code identifying the parent of this category. Ignore if isRoot==TRUE
* @param [in] state Walk state record.
* @return J9MEM_CATEGORIES_KEEP_INTERATING or J9MEM_CATEGORIES_STOP_ITERATING
*/
uintptr_t (*walkFunction)(uint32_t categoryCode, const char *categoryName, uintptr_t liveBytes, uintptr_t liveAllocations, BOOLEAN isRoot, uint32_t parentCategoryCode, struct OMRMemCategoryWalkState *state);
void *userData1;
void *userData2;
} OMRMemCategoryWalkState;
typedef enum J9MemoryState {J9NUMA_PREFERRED, J9NUMA_ALLOWED, J9NUMA_DENIED} J9MemoryState;
typedef struct J9MemoryNodeDetail {
uintptr_t j9NodeNumber; /**< The 1-indexed number used outside of Port and Thread to describe this node */
J9MemoryState memoryPolicy; /**< Whether the memory on this node is preferred, allowed, or denied use by this process under the current NUMA policy */
uintptr_t computationalResourcesAvailable; /**< The number of computational resources on this node which are currently available for use under the current NUMA policy */
} J9MemoryNodeDetail;
/* Stores memory usage statistics snapshot sampled at a time 'timestamp'.
*
* @see omrsysinfo_get_memory_info
*
* If one of these parameters is not available on a particular platform, this is set to the
* default OMRPORT_MEMINFO_NOT_AVAILABLE.
*/
typedef struct J9MemoryInfo {
uint64_t totalPhysical; /* Total physical memory in the system (in bytes). */
uint64_t availPhysical; /* Available physical memory in the system (in bytes). */
uint64_t totalVirtual; /* Total virtual memory addressable by the process (in bytes). */
uint64_t availVirtual; /* Virtual memory available to the process (in bytes). */
uint64_t totalSwap; /* Total swap memory (in bytes). */
uint64_t availSwap; /* Total swap memory free (in bytes). */
uint64_t cached; /* The physical RAM used as cache memory (in bytes). */
uint64_t buffered; /* The physical RAM used for file buffers (in bytes). */
int64_t timestamp; /* Sampling timestamp (in microseconds). */
/* Available physical memory on the host (in bytes) when process is in a cgroup.
* When not in a cgroup, this will be identical to 'availPhysical' field above.
*/
uint64_t hostAvailPhysical;
/* The physical RAM used as cache memory (in bytes) when process is in a cgroup.
* When not in a cgroup, this will be identical to 'cached' field above.
*/
uint64_t hostCached;
/* The physical RAM used for file buffers (in bytes) when process is in a cgroup.
* When not in a cgroup, this will be identical to 'buffered' field above.
*/
uint64_t hostBuffered;
} J9MemoryInfo;
#define OMRPORT_MEMINFO_NOT_AVAILABLE ((uint64_t) -1)
/**
* Stores usage information on a per-processor basis. These parameters are the ones that generic
* whereas, operating system specific parameters are not saved here. If one of these parameters is
* not available on a particular platform, this is set to OMRPORT_PROCINFO_NOT_AVAILABLE.
*/
typedef struct J9ProcessorInfo {
uint64_t userTime; /* Time spent in user mode (in microseconds). */
uint64_t systemTime; /* Time spent in system mode (in microseconds). */
uint64_t idleTime; /* Time spent sitting idle (in microseconds). */
uint64_t waitTime; /* Time spent over IO wait (in microseconds). */
uint64_t busyTime; /* Time spent over useful work (in microseconds). */
int32_t proc_id; /* This processor's id. */
/* Was current CPU online when last sampled (OMRPORT_PROCINFO_PROC_ONLINE if online,
* OMRPORT_PROCINFO_PROC_OFFLINE if not).
*/
int32_t online;
} J9ProcessorInfo;
/**
* Structure collects the usage statistics for each of the processors that is online at the
* time of sampling.
*
* @see omrsysinfo_get_processor_info, omrsysinfo_destroy_processor_info
*
* The array holds an entry for each logical processor on the system plus a one for the aggregates.
* However, the particular record shall hold valid usage samples only if the processor were online,
* else the individual fields shall be set to OMRPORT_PROCINFO_NOT_AVAILABLE.
*/
typedef struct J9ProcessorInfos {
int32_t totalProcessorCount; /* Number of logical processors on the machine. */
J9ProcessorInfo *procInfoArray; /* Array of processors, of 'totalProcessorCount + 1'. */
int64_t timestamp; /* Sampling timestamp (in microseconds). */
} J9ProcessorInfos;
#define OMRPORT_PROCINFO_NOT_AVAILABLE ((uint64_t) -1)
/* Processor status. */
#define OMRPORT_PROCINFO_PROC_OFFLINE ((int32_t)0)
#define OMRPORT_PROCINFO_PROC_ONLINE ((int32_t)1)
#define NANOSECS_PER_USEC 1000
#define OMRPORT_ENABLE_ENSURE_CAP32 0
#define OMRPORT_DISABLE_ENSURE_CAP32 1
#define FLG_ACQUIRE_LOCK_WAIT 0x00000001
#define FLG_ACQUIRE_LOCK_NOWAIT 0x00000002
/* Lock Status values - the current status of a lock. */
#define LS_UNINITIALIZED 0
#define LS_INITIALIZED 1
#define LS_INITIALIZING 2
#define LS_LOCKED 3
/* omrsysinfo_get_number_CPUs_by_type flags */
#define OMRPORT_CPU_PHYSICAL 1
#define OMRPORT_CPU_ONLINE 2
#define OMRPORT_CPU_BOUND 3
#define OMRPORT_CPU_TARGET 4
#define OMRPORT_SL_FOUND 0
#define OMRPORT_SL_NOT_FOUND 1
#define OMRPORT_SL_INVALID 2
#define OMRPORT_SL_UNSUPPORTED 3
#define OMRPORT_SL_UNKNOWN 4 /* Unknown Shared Library related error. */
#define OMRPORT_SLOPEN_DECORATE 1 /* Note this value must remain 1, in order for legacy callers using TRUE and FALSE to control decoration */
#if !defined(OMRZTPF)
#define OMRPORT_SLOPEN_LAZY 2
#else /* !defined(OMRZTPF) */
#define OMRPORT_SLOPEN_LAZY 0
#endif /* defined(OMRZTPF) */
#define OMRPORT_SLOPEN_NO_LOOKUP_MSG_FOR_NOT_FOUND 4
#define OMRPORT_SLOPEN_OPEN_EXECUTABLE 8 /* Can be ORed without affecting existing flags. */
#if defined(J9ZOS39064)
#define OMRPORT_SLOPEN_ATTEMPT_31BIT_OPEN 16 /* Attempt 31-bit DLL load from 64-bit. */
#define OMRPORT_SL_ZOS_31BIT_TARGET_HIGHTAG 0x3100000000000000l /* High-tag to signify 31-bit target handles and addresses. */
#define OMRPORT_SL_ZOS_31BIT_TARGET_MASK 0xFFFFFFFF /* Mask used to convert 31-bit tagged handles/addresses to proper values. */
#endif /* defined(J9ZOS39064) */
#define OMRPORT_ARCH_X86 "x86"
#define OMRPORT_ARCH_PPC "ppc" /* in line with IBM JDK 1.22 and above for AIX and Linux/PPC */
#define OMRPORT_ARCH_PPC64 "ppc64"
#define OMRPORT_ARCH_PPC64LE "ppc64le"
#define OMRPORT_ARCH_S390 "s390"
#define OMRPORT_ARCH_S390X "s390x"
#define OMRPORT_ARCH_HAMMER "amd64"
#define OMRPORT_ARCH_ARM "arm"
#define OMRPORT_ARCH_AARCH64 "aarch64"
#define OMRPORT_ARCH_RISCV "riscv"
#define OMRPORT_TTY_IN 0
#define OMRPORT_TTY_OUT 1
#define OMRPORT_TTY_ERR 2
#define OMRPORT_STREAM_IN stdin
#define OMRPORT_STREAM_OUT stdout
#define OMRPORT_STREAM_ERR stderr
#define OMRPORT_CTLDATA_SIG_FLAGS "SIG_FLAGS"
#define OMRPORT_CTLDATA_TRACE_START "TRACE_START"
#define OMRPORT_CTLDATA_TRACE_STOP "TRACE_STOP"
#define OMRPORT_CTLDATA_VMEM_NUMA_IN_USE "VMEM_NUMA_IN_USE"
#define OMRPORT_CTLDATA_VMEM_NUMA_ENABLE "VMEM_NUMA_IN_ENABLE"
#define OMRPORT_CTLDATA_VMEM_NUMA_INTERLEAVE_MEM "VMEM_NUMA_INTERLEAVE"
#define OMRPORT_CTLDATA_SYSLOG_OPEN "SYSLOG_OPEN"
#define OMRPORT_CTLDATA_SYSLOG_CLOSE "SYSLOG_CLOSE"
#define OMRPORT_CTLDATA_NOIPT "NOIPT"
#define OMRPORT_CTLDATA_TIME_CLEAR_TICK_TOCK "TIME_CLEAR_TICK_TOCK"
#define OMRPORT_CTLDATA_MEM_CATEGORIES_SET "MEM_CATEGORIES_SET"
#define OMRPORT_CTLDATA_AIX_PROC_ATTR "AIX_PROC_ATTR"
#define OMRPORT_CTLDATA_ALLOCATE32_COMMIT_SIZE "ALLOCATE32_COMMIT_SIZE"
#define OMRPORT_CTLDATA_NOSUBALLOC32BITMEM "NOSUBALLOC32BITMEM"
#define OMRPORT_CTLDATA_VMEM_ADVISE_OS_ONFREE "VMEM_ADVISE_OS_ONFREE"
#define OMRPORT_CTLDATA_VECTOR_REGS_SUPPORT_ON "VECTOR_REGS_SUPPORT_ON"
#define OMRPORT_CTLDATA_NLS_DISABLE "NLS_DISABLE"
#define OMRPORT_CTLDATA_VMEM_ADVISE_HUGEPAGE "VMEM_ADVISE_HUGEPAGE"
#define OMRPORT_CTLDATA_VMEM_PERFORM_FULL_MEMORY_SEARCH "VMEM_PERFORM_FULL_SEARCH"
#define OMRPORT_CTLDATA_VMEM_HUGE_PAGES_MMAP_ENABLED "VMEM_HUGE_PAGES_MMAP_ENABLED"
#define OMRPORT_FILE_READ_LOCK 1
#define OMRPORT_FILE_WRITE_LOCK 2
#define OMRPORT_FILE_WAIT_FOR_LOCK 4
#define OMRPORT_FILE_NOWAIT_FOR_LOCK 8
#define OMRPORT_MMAP_CAPABILITY_COPYONWRITE 1
#define OMRPORT_MMAP_CAPABILITY_READ 2
#define OMRPORT_MMAP_CAPABILITY_WRITE 4
#define OMRPORT_MMAP_CAPABILITY_UMAP_REQUIRES_SIZE 8
#define OMRPORT_MMAP_CAPABILITY_MSYNC 16
#define OMRPORT_MMAP_CAPABILITY_PROTECT 32
#define OMRPORT_MMAP_FLAG_CREATE_FILE 1
#define OMRPORT_MMAP_FLAG_READ 2
#define OMRPORT_MMAP_FLAG_WRITE 4
#define OMRPORT_MMAP_FLAG_COPYONWRITE 8
#define OMRPORT_MMAP_FLAG_EXECUTABLE 16
#define OMRPORT_MMAP_FLAG_SHARED 32
#define OMRPORT_MMAP_FLAG_PRIVATE 64
#define OMRPORT_MMAP_SYNC_WAIT 0x80
#define OMRPORT_MMAP_SYNC_ASYNC 0x100
#define OMRPORT_MMAP_SYNC_INVALIDATE 0x200
/* Signal classification bits. */
#define OMRPORT_SIG_FLAG_MAY_RETURN ((uint32_t)0x01)
#define OMRPORT_SIG_FLAG_MAY_CONTINUE_EXECUTION ((uint32_t)0x02)
#define OMRPORT_SIG_FLAG_IS_ASYNC ((uint32_t)0x04)
#define OMRPORT_SIG_FLAG_IS_SYNC ((uint32_t)0x08)
#define OMRPORT_SIG_FLAG_CONTROL_BITS_MASK ((uint32_t)0x0F)
#if defined(OMR_OS_WINDOWS) || defined(OMRZTPF)
/* The below macros support the [win32|win64amd|ztpf]/omrsignal.c implementations, which are used on Windows and z/TPF. */
#define OMRPORT_SIG_SMALLEST_SIGNAL_FLAG 0x4
#define OMRPORT_SIG_FLAG_SIGSEGV 0x4
#define OMRPORT_SIG_FLAG_SIGBUS 0x8
#define OMRPORT_SIG_FLAG_SIGILL 0x10
#define OMRPORT_SIG_FLAG_SIGFPE 0x20
#define OMRPORT_SIG_FLAG_SIGTRAP 0x40
#define OMRPORT_SIG_FLAG_SIGABEND 0x80
#define OMRPORT_SIG_FLAG_SIGPIPE 0x100
#define OMRPORT_SIG_FLAG_SIGALRM 0x200
#define OMRPORT_SIG_FLAG_SIGQUIT 0x400
#define OMRPORT_SIG_FLAG_SIGABRT 0x800
#define OMRPORT_SIG_FLAG_SIGTERM 0x1000
#define OMRPORT_SIG_FLAG_SIGRECONFIG 0x2000
#define OMRPORT_SIG_FLAG_SIGINT 0x4000
#define OMRPORT_SIG_FLAG_SIGXFSZ 0x8000
#define OMRPORT_SIG_FLAG_SIGCHLD 0x10000
#define OMRPORT_SIG_FLAG_SIGTSTP 0x20000
#define OMRPORT_SIG_FLAG_SIGFPE_DIV_BY_ZERO (OMRPORT_SIG_FLAG_SIGFPE | 0x40000)
#define OMRPORT_SIG_FLAG_SIGFPE_INT_DIV_BY_ZERO (OMRPORT_SIG_FLAG_SIGFPE | 0x80000)
#define OMRPORT_SIG_FLAG_SIGFPE_INT_OVERFLOW (OMRPORT_SIG_FLAG_SIGFPE | 0x100000)
#define OMRPORT_SIG_FLAG_SIGIO 0x200000
#define OMRPORT_SIG_FLAG_SIGHUP 0x400000
#define OMRPORT_SIG_FLAG_SIGCONT 0x800000
#define OMRPORT_SIG_FLAG_SIGWINCH 0x1000000
#define OMRPORT_SIG_FLAG_SIGUSR1 0x2000000
#define OMRPORT_SIG_FLAG_SIGUSR2 0x4000000
#define OMRPORT_SIG_FLAG_SIGURG 0x8000000
#define OMRPORT_SIG_FLAG_SIGXCPU 0x10000000
#define OMRPORT_SIG_FLAG_SIGVTALRM 0x20000000
#define OMRPORT_SIG_FLAG_SIGPROF 0x40000000
#define OMRPORT_SIG_FLAG_SIGSYS 0x80000000
#define OMRPORT_SIG_FLAG_SIGALLASYNC \
( OMRPORT_SIG_FLAG_SIGQUIT | OMRPORT_SIG_FLAG_SIGABRT | OMRPORT_SIG_FLAG_SIGTERM | OMRPORT_SIG_FLAG_SIGRECONFIG \
| OMRPORT_SIG_FLAG_SIGXFSZ | OMRPORT_SIG_FLAG_SIGINT | OMRPORT_SIG_FLAG_SIGHUP | OMRPORT_SIG_FLAG_SIGCONT \
| OMRPORT_SIG_FLAG_SIGWINCH | OMRPORT_SIG_FLAG_SIGPIPE | OMRPORT_SIG_FLAG_SIGALRM | OMRPORT_SIG_FLAG_SIGCHLD \
| OMRPORT_SIG_FLAG_SIGTSTP | OMRPORT_SIG_FLAG_SIGUSR1 | OMRPORT_SIG_FLAG_SIGUSR2 | OMRPORT_SIG_FLAG_SIGURG \
| OMRPORT_SIG_FLAG_SIGXCPU | OMRPORT_SIG_FLAG_SIGVTALRM | OMRPORT_SIG_FLAG_SIGPROF | OMRPORT_SIG_FLAG_SIGIO \
| OMRPORT_SIG_FLAG_SIGSYS )
#else /* defined(OMR_OS_WINDOWS) || defined(OMRZTPF) */
/* The below macros support the unix/omrsignal.c implementation, used everywhere but windows and z/TPF. */
/* All signal codes include exactly one of OMRPORT_SIG_FLAG_IS_SYNC or OMRPORT_SIG_FLAG_IS_ASYNC
* plus a multiple of this.
*/
#define OMRPORT_SIG_SMALLEST_SIGNAL_FLAG ((uint32_t)0x10)
/* The API can accommodate up to 19 more synchronous signals and up to 7 more asynchronous signals:
*
* #define OMRPORT_SIG_FLAG_MAX_SYNC ((OMRPORT_SIG_SMALLEST_SIGNAL_FLAG << 27) | OMRPORT_SIG_FLAG_IS_SYNC)
* #define OMRPORT_SIG_FLAG_MAX_ASYNC ((OMRPORT_SIG_SMALLEST_SIGNAL_FLAG << 27) | OMRPORT_SIG_FLAG_IS_ASYNC)
*/
/* Synchronous signals. */
#define OMRPORT_SIG_FLAG_SIGSEGV ((OMRPORT_SIG_SMALLEST_SIGNAL_FLAG << 0) | OMRPORT_SIG_FLAG_IS_SYNC)
#define OMRPORT_SIG_FLAG_SIGBUS ((OMRPORT_SIG_SMALLEST_SIGNAL_FLAG << 1) | OMRPORT_SIG_FLAG_IS_SYNC)
#define OMRPORT_SIG_FLAG_SIGILL ((OMRPORT_SIG_SMALLEST_SIGNAL_FLAG << 2) | OMRPORT_SIG_FLAG_IS_SYNC)
#define OMRPORT_SIG_FLAG_SIGFPE ((OMRPORT_SIG_SMALLEST_SIGNAL_FLAG << 3) | OMRPORT_SIG_FLAG_IS_SYNC)
#define OMRPORT_SIG_FLAG_SIGTRAP ((OMRPORT_SIG_SMALLEST_SIGNAL_FLAG << 4) | OMRPORT_SIG_FLAG_IS_SYNC)
#define OMRPORT_SIG_FLAG_SIGABEND ((OMRPORT_SIG_SMALLEST_SIGNAL_FLAG << 5) | OMRPORT_SIG_FLAG_IS_SYNC)
#define OMRPORT_SIG_FLAG_SIGFPE_DIV_BY_ZERO ((OMRPORT_SIG_SMALLEST_SIGNAL_FLAG << 6) | OMRPORT_SIG_FLAG_SIGFPE)
#define OMRPORT_SIG_FLAG_SIGFPE_INT_DIV_BY_ZERO ((OMRPORT_SIG_SMALLEST_SIGNAL_FLAG << 7) | OMRPORT_SIG_FLAG_SIGFPE)
#define OMRPORT_SIG_FLAG_SIGFPE_INT_OVERFLOW ((OMRPORT_SIG_SMALLEST_SIGNAL_FLAG << 8) | OMRPORT_SIG_FLAG_SIGFPE)
/* Asynchronous signals. */
#define OMRPORT_SIG_FLAG_SIGALRM ((OMRPORT_SIG_SMALLEST_SIGNAL_FLAG << 0) | OMRPORT_SIG_FLAG_IS_ASYNC)
#define OMRPORT_SIG_FLAG_SIGQUIT ((OMRPORT_SIG_SMALLEST_SIGNAL_FLAG << 1) | OMRPORT_SIG_FLAG_IS_ASYNC)
#define OMRPORT_SIG_FLAG_SIGABRT ((OMRPORT_SIG_SMALLEST_SIGNAL_FLAG << 2) | OMRPORT_SIG_FLAG_IS_ASYNC)
#define OMRPORT_SIG_FLAG_SIGTERM ((OMRPORT_SIG_SMALLEST_SIGNAL_FLAG << 3) | OMRPORT_SIG_FLAG_IS_ASYNC)
#define OMRPORT_SIG_FLAG_SIGRECONFIG ((OMRPORT_SIG_SMALLEST_SIGNAL_FLAG << 4) | OMRPORT_SIG_FLAG_IS_ASYNC)
#define OMRPORT_SIG_FLAG_SIGINT ((OMRPORT_SIG_SMALLEST_SIGNAL_FLAG << 5) | OMRPORT_SIG_FLAG_IS_ASYNC)
#define OMRPORT_SIG_FLAG_SIGXFSZ ((OMRPORT_SIG_SMALLEST_SIGNAL_FLAG << 6) | OMRPORT_SIG_FLAG_IS_ASYNC)
#define OMRPORT_SIG_FLAG_SIGCHLD ((OMRPORT_SIG_SMALLEST_SIGNAL_FLAG << 7) | OMRPORT_SIG_FLAG_IS_ASYNC)
#define OMRPORT_SIG_FLAG_SIGTSTP ((OMRPORT_SIG_SMALLEST_SIGNAL_FLAG << 8) | OMRPORT_SIG_FLAG_IS_ASYNC)
#define OMRPORT_SIG_FLAG_SIGIO ((OMRPORT_SIG_SMALLEST_SIGNAL_FLAG << 9) | OMRPORT_SIG_FLAG_IS_ASYNC)
#define OMRPORT_SIG_FLAG_SIGHUP ((OMRPORT_SIG_SMALLEST_SIGNAL_FLAG << 10) | OMRPORT_SIG_FLAG_IS_ASYNC)
#define OMRPORT_SIG_FLAG_SIGCONT ((OMRPORT_SIG_SMALLEST_SIGNAL_FLAG << 11) | OMRPORT_SIG_FLAG_IS_ASYNC)
#define OMRPORT_SIG_FLAG_SIGWINCH ((OMRPORT_SIG_SMALLEST_SIGNAL_FLAG << 12) | OMRPORT_SIG_FLAG_IS_ASYNC)
#define OMRPORT_SIG_FLAG_SIGUSR1 ((OMRPORT_SIG_SMALLEST_SIGNAL_FLAG << 13) | OMRPORT_SIG_FLAG_IS_ASYNC)
#define OMRPORT_SIG_FLAG_SIGUSR2 ((OMRPORT_SIG_SMALLEST_SIGNAL_FLAG << 14) | OMRPORT_SIG_FLAG_IS_ASYNC)
#define OMRPORT_SIG_FLAG_SIGURG ((OMRPORT_SIG_SMALLEST_SIGNAL_FLAG << 15) | OMRPORT_SIG_FLAG_IS_ASYNC)
#define OMRPORT_SIG_FLAG_SIGXCPU ((OMRPORT_SIG_SMALLEST_SIGNAL_FLAG << 16) | OMRPORT_SIG_FLAG_IS_ASYNC)
#define OMRPORT_SIG_FLAG_SIGVTALRM ((OMRPORT_SIG_SMALLEST_SIGNAL_FLAG << 17) | OMRPORT_SIG_FLAG_IS_ASYNC)
#define OMRPORT_SIG_FLAG_SIGPROF ((OMRPORT_SIG_SMALLEST_SIGNAL_FLAG << 18) | OMRPORT_SIG_FLAG_IS_ASYNC)
#define OMRPORT_SIG_FLAG_SIGPIPE ((OMRPORT_SIG_SMALLEST_SIGNAL_FLAG << 19) | OMRPORT_SIG_FLAG_IS_ASYNC)
#define OMRPORT_SIG_FLAG_SIGSYS ((OMRPORT_SIG_SMALLEST_SIGNAL_FLAG << 20) | OMRPORT_SIG_FLAG_IS_ASYNC)
#define OMRPORT_SIG_FLAG_SIGTTIN ((OMRPORT_SIG_SMALLEST_SIGNAL_FLAG << 21) | OMRPORT_SIG_FLAG_IS_ASYNC)
#define OMRPORT_SIG_FLAG_SIGTTOU ((OMRPORT_SIG_SMALLEST_SIGNAL_FLAG << 22) | OMRPORT_SIG_FLAG_IS_ASYNC)
#define OMRPORT_SIG_FLAG_SIGINFO ((OMRPORT_SIG_SMALLEST_SIGNAL_FLAG << 23) | OMRPORT_SIG_FLAG_IS_ASYNC)
#define OMRPORT_SIG_FLAG_SIGIOT ((OMRPORT_SIG_SMALLEST_SIGNAL_FLAG << 24) | OMRPORT_SIG_FLAG_IS_ASYNC)
#define OMRPORT_SIG_FLAG_SIGPOLL ((OMRPORT_SIG_SMALLEST_SIGNAL_FLAG << 25) | OMRPORT_SIG_FLAG_IS_ASYNC)