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omrcfg.h.in
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/*******************************************************************************
* Copyright (c) 2015, 2020 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
*******************************************************************************/
/* ATTENTION: when updating this file, be sure to also update omrcfg.cmake.h.in */
/**
* The OMR build configuration. A public header. Controls the APIs of all other headers.
* Include at the top of every OMR source and header.
*/
#if !defined(OMRCFG_H_)
#define OMRCFG_H_
/**
* @ddr_namespace: map_to_type=OmrBuildFlags
* @ddr_options: valuesandbuildflags
*/
#undef OMR_GC
#undef OMR_COMPILER
#undef OMR_JITBUILDER
#undef OMR_TEST_COMPILER
#undef OMR_PORT
#undef OMR_THREAD
#undef OMR_OMRSIG
#undef OMR_EXAMPLE
#undef OMR_SHARED_CACHE
#undef OMR_GC_ALLOCATION_TAX
#undef OMR_GC_OBJECT_ALLOCATION_NOTIFY
#undef OMR_GC_BATCH_CLEAR_TLH
#undef OMR_GC_COMBINATION_SPEC
#undef OMR_GC_CONCURRENT_SWEEP
#undef OMR_GC_DEBUG_ASSERTS
#undef OMR_GC_IDLE_HEAP_MANAGER
#undef OMR_GC_LARGE_OBJECT_AREA
#undef OMR_GC_LEAF_BITS
#undef OMR_GC_MINIMUM_OBJECT_SIZE
#undef OMR_GC_MODRON_COMPACTION
#undef OMR_GC_MODRON_CONCURRENT_MARK
#undef OMR_GC_MODRON_SCAVENGER
#undef OMR_GC_CONCURRENT_SCAVENGER
#undef OMR_GC_MODRON_STANDARD
#undef OMR_GC_NON_ZERO_TLH
#undef OMR_GC_SCAN_OBJECT_GLUE
#undef OMR_GC_SEGREGATED_HEAP
#undef OMR_GC_THREAD_LOCAL_HEAP
#undef OMR_GC_DOUBLE_MAP_ARRAYLETS
#undef OMR_GC_VLHGC_CONCURRENT_COPY_FORWARD
/**
* Tells if a platform has support for Semaphores.
* ifRemoved: platform cannot use semaphore operations.
*/
#undef OMR_INTERP_HAS_SEMAPHORES
/**
* Use TDF based trace engine
* ifRemoved: No tracepoints
*/
#undef OMR_RAS_TDF_TRACE
/**
* Support options to adapt spinning as controlled by options provided to the vm.
* Requires flag: OMR_THR_JLM_HOLD_TIMES
* ifRemoved: No adaptive spinning supported
*/
#undef OMR_THR_ADAPTIVE_SPIN
/**
* Enable support for lock monitor to profile locking behaviour - counts only
* ifRemoved: Lock monitor cannot be enabled
*/
#undef OMR_THR_JLM
/**
* Enable support for lock monitor to profile locking behaviour - counts + timings only
* ifRemoved: Lock monitor cannot be enabled
*/
#undef OMR_THR_JLM_HOLD_TIMES
/**
* object header does not contain the monitor word
* ifRemoved: object header will contain the monitor word
*/
#undef OMR_THR_LOCK_NURSERY
/**
* Output lots of thread statistics (Pentium only)
* ifRemoved: Turn off in production VMs
*/
#undef OMR_THR_TRACING
#undef OMRTHREAD_LIB_AIX
#undef OMRTHREAD_LIB_UNIX
#undef OMRTHREAD_LIB_WIN32
#undef OMRTHREAD_LIB_ZOS
/**
* This spec targets PPC processors.
*/
#undef OMR_ARCH_POWER
/**
* This spec targets ARM processors.
*/
#undef OMR_ARCH_ARM
/**
* This spec targets AARCH64 processors.
*/
#undef OMR_ARCH_AARCH64
/**
* This spec targets x86 processors.
*/
#undef OMR_ARCH_X86
/**
* This spec targets S390 processors.
*/
#undef OMR_ARCH_S390
#undef OMR_ENV_DATA64
#undef OMR_ENV_LITTLE_ENDIAN
#undef OMR_GC_COMPRESSED_POINTERS
#undef OMR_GC_FULL_POINTERS
#undef OMR_GC_OBJECT_MAP
#undef OMR_GC_REALTIME
#undef OMR_GC_TLH_PREFETCH_FTA
#undef OMR_GC_VLHGC
#undef OMR_MIXED_REFERENCES_MODE_STATIC
/**
* Add support for CUDA
*/
#undef OMR_OPT_CUDA
/**
* Enabling this flag implies the platform's vmem implementation is able to allocate memory top down.
* ifRemoved: Implies the platform's vmem implementation is not able to allocate memory top down
*/
#undef OMR_PORT_ALLOCATE_TOP_DOWN
/**
* Enables async signal handler thread in the port library.
* ifRemoved: Async signal handler thread is disabled.
*/
#undef OMR_PORT_ASYNC_HANDLER
/**
* The platform is able to attempt to reserve virtual memory via a call to omrvmem_reserve_memory at the address specified by the user.
* ifRemoved: The platform is not able to reserve virtual memory at a specific address
*/
#undef OMR_PORT_CAN_RESERVE_SPECIFIC_ADDRESS
/**
* This platform is able to associate memory with a specific node, as is relevant when the system has a Non Uniform Memory Access configuration.
* ifRemoved: This platform is not able to associate memory with a specific node.
*/
#undef OMR_PORT_NUMA_SUPPORT
/**
* If set, omrsig_protect will include support for registering a handler using CEEHDLR.
* Pass OMRPORT_SIG_OPTIONS_ZOS_USE_CEEHDLR into omrsig_set_options() before the first call
* to omrsig_protect() to turn on the use of CEEHDLR at runtime.
* ifRemoved: omrsig_protect will not include support for CEEHDLR.
*/
#undef OMR_PORT_ZOS_CEEHDLRSUPPORT
/**
* Enable the j9thread library to be used after a fork().
* ifRemoved: The j9thread library may be corrupt and unusable after a fork().
*/
#undef OMR_THR_FORK_SUPPORT
/**
* Attempt to enter raw monitors using user-space spinlocks before reverting to an OS synchronization object
* ifRemoved: All raw monitor enters will proceed directly to an OS synchronization object
*/
#undef OMR_THR_THREE_TIER_LOCKING
/**
* Enable support for custom spin options.
* Requires flag: OMR_THR_THREE_TIER_LOCKING.
* ifRemoved: Custom spin options cannot be used.
*/
#undef OMR_THR_CUSTOM_SPIN_OPTIONS
/**
* Allows a user to select the thread notify policy: signal or broadcast.
* ifRemoved: User will not be able to select the thread notify policy, and broadcast policy will always be used.
*/
#undef OMR_NOTIFY_POLICY_CONTROL
/**
* This flag enables new synchronization prototypes which
* -- prevent large number of threads to spin at a time on a monitor
* -- avoid the thundering herd problem on wake up
*
* The prototypes provide the following features
* -- track number of threads spinning on a monitor
* -- wake threads only when no thread is spinning on a monitor
* -- limit/control number of threads that are woken up per monitor
* -- limit/control number of threads that are allowed to spin per monitor
*/
#undef OMR_THR_SPIN_WAKE_CONTROL
/**
* This enables the option to select different algorithms for yielding.
*/
#undef OMR_THR_YIELD_ALG
/**
* Dwarf
*/
#undef HAVE_DWARF_H
#undef HAVE_LIBDWARF_DWARF_H
#undef HAVE_LIBDWARF_H
#undef HAVE_LIBDWARF_LIBDWARF_H
/**
* Flag to enable integration of valgrind api.
*/
#undef OMR_VALGRIND_MEMCHECK
/**
* This flags enables calls to omrsig_primary_signal, omrsig_primary_sigaction and
* omrsig_handler (omrsig library). If disabled, then calls to signal and sigaction
* will be enabled, and calls to functions in omrsig library will be disabled.
*/
#undef OMRPORT_OMRSIG_SUPPORT
/**
* Platform config options.
* Note: these are determined at configure time with cmake.
* For the autoconf builds, we just hard code them based on platform
*/
#if defined(LINUX) || defined(AIXPPC)
#define OMR_USE_POSIX_SEMAPHORES
#elif defined(OSX)
#define OMR_USE_OSX_SEMAPHORES
#elif defined(J9ZOS390)
#define OMR_USE_ZOS_SEMAPHORES
#endif
#if defined(LINUX) || defined(OSX)
#define OMR_HAVE_DLADDR
#endif
/**
* This flag enables the usage of the MCS (queue-based) lock instead of the default
* TATAS (Test & Test & Set) lock in the OMR thread monitor.
*/
#undef OMR_THR_MCS_LOCKS
#endif /* !defined(OMRCFG_H_) */