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# b3293305 30-Jul-2022 Anubhab Ghosh <[email protected]>

[Orc] Disable use of shared memory on Android

shm_open and shm_unlink are not available on Android. This commit
disables SharedMemoryMapper on Android until a better solution is
available.

https://

[Orc] Disable use of shared memory on Android

shm_open and shm_unlink are not available on Android. This commit
disables SharedMemoryMapper on Android until a better solution is
available.

https://android.googlesource.com/platform/bionic/+/refs/heads/master/docs/status.md
https://github.com/llvm/llvm-project/issues/56812

Differential Revision: https://reviews.llvm.org/D130814

(cherry picked from commit ac3cb4ecd0c6ed03c135945d27bbe197d80cba4e)

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Revision tags: llvmorg-16-init
# 4fcf8434 21-Jul-2022 Anubhab Ghosh <[email protected]>

[ORC] Add a new MemoryMapper-based JITLinkMemoryManager implementation.

MapperJITLinkMemoryManager supports executor memory management using any
implementation of MemoryMapper to do the transfer suc

[ORC] Add a new MemoryMapper-based JITLinkMemoryManager implementation.

MapperJITLinkMemoryManager supports executor memory management using any
implementation of MemoryMapper to do the transfer such as InProcessMapper or
SharedMemoryMapper.

Reviewed By: lhames

Differential Revision: https://reviews.llvm.org/D129495

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# 1b1f1c77 19-Jul-2022 Anubhab Ghosh <[email protected]>

Re-re-apply 5acd47169884, Add a shared-memory based orc::MemoryMapper...

...with more fixes.

The original patch was reverted in 3e9cc543f22 due to bot failures caused by
a missing dependence on lib

Re-re-apply 5acd47169884, Add a shared-memory based orc::MemoryMapper...

...with more fixes.

The original patch was reverted in 3e9cc543f22 due to bot failures caused by
a missing dependence on librt. That issue was fixed in 32d8d23cd0, but that
commit also broke sanitizer bots due to a bug in SimplePackedSerialization:
empty ArrayRef<char>s triggered a zero-byte memcpy from a null source. The
ArrayRef<char> serialization issue was fixed in 67220c2ad7, and this patch has
also been updated with a new custom SharedMemorySegFinalizeRequest message that
should avoid serializing empty ArrayRefs in the first place.

https://reviews.llvm.org/D128544

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# 32d8d23c 15-Jul-2022 Anubhab Ghosh <[email protected]>

Re-apply 5acd47169884, Add a shared-memory based orc::MemoryMapper, with fixes.

The original commit was reverted in 3e9cc543f223 due to buildbot failures, which
should be fixed by the addition of de

Re-apply 5acd47169884, Add a shared-memory based orc::MemoryMapper, with fixes.

The original commit was reverted in 3e9cc543f223 due to buildbot failures, which
should be fixed by the addition of dependencies on librt.

Differential Revision: https://reviews.llvm.org/D128544

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# 5acd4716 12-Jul-2022 Anubhab Ghosh <[email protected]>

[ORC] Add a shared-memory based orc::MemoryMapper.

This is an implementation of orc::MemoryMapper that maps shared memory
pages in both executor and controller process and writes directly to
them av

[ORC] Add a shared-memory based orc::MemoryMapper.

This is an implementation of orc::MemoryMapper that maps shared memory
pages in both executor and controller process and writes directly to
them avoiding transferring content over EPC. All allocations are properly
deinitialized automatically on the executor side at shutdown by the
ExecutorSharedMemoryMapperService.

Reviewed By: lhames

Differential Revision: https://reviews.llvm.org/D128544

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