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(NFC) (#168343)
In 4 years the plugin wasn't adapted to other object formats. This patch
makes it specific for ELF, which will allow to remove some abstractions
down the line. It also moves the plugin from LLVMOrcJIT into
LLVMOrcDebugging, which didn't exist back then.
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(#101741)" (#102138)
Fix the builds with LLVM_TOOL_LLVM_DRIVER_BUILD enabled.
LLVM_ENABLE_EXPORTED_SYMBOLS_IN_EXECUTABLES is not completely
compatible with export_executable_symbols as the later will be ignored
if the previous is set to NO.
Fix the issue by passing if symbols need to be exported to
llvm_add_exectuable so the link flag can be determined directly
without calling export_executable_symbols_* later.
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This reverts commit 5c56b46a32a8856a022a54291bc9294068f7ddbd. This break
lld build when using GENERATE_DRIVER.
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`LLVM_ENABLE_EXPORTED_SYMBOLS_IN_EXECUTABLES` is not completely
compatible with `export_executable_symbols` as the later will be ignored
if the previous is set to NO.
Fix the issue by passing if symbols need to be exported to
`llvm_add_exectuable` so the link flag can be determined directly
without calling `export_executable_symbols_*` later.
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Fixes the failure at https://lab.llvm.org/buildbot/#/builders/131/builds/62928,
and add comments about unused variable and update debugging output.
Coding my way home: 6.44615S, 128.16704W
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Some maintenance on implementation and tests:
* Drop manual TargetMachineBuilder setup
* Drop addDebugSupport() in favor of Orc's enableDebuggerSupport()
* Check that debug support plugins append jit_code_entry
* Update and reduce sample input
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https://github.com/llvm/llvm-project/pull/74764 reported that the
`lljit-with-remote-debugging` test fails on AArch64 hosts, because the
input IR file states arch x86_64 explicitly. In order to drop the target
triple we have to remove a check in the example implementation.
Not sure it's fully portable now, but at least it's better than before.
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In preparation for removing the `#include "llvm/ADT/StringExtras.h"`
from the header to source file of `llvm/Support/Error.h`, first add in
all the missing includes that were previously included transitively
through this header.
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This reapplies 85c649bc02a, which was reverted in 35767e43d62 due to failures
with some example programs. The fix was to add export_executable_symbols to the
example programs.
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Configure the plugin to automatically call the debugger rendezvous breakpoint `__jit_debug_register_code()` for every translation unit (enabled) or never at all (disabled). Default API and behavior remain unchanged.
If AutoRegisterCode is turned off, it's the client's own responsibility to call the rendezvous breakpoint function at an appropriate time.
Depending on the complexity of the debugger's rendezvous breakpoint implementation, this can provide significant performance improvements in cases where many debug objects are added in sequence.
Reviewed By: lhames
Differential Revision: https://reviews.llvm.org/D147310
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Clients don't care about linkage, and ExecutorAddr is much more ergonomic.
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Though this is a full port of the example, it is not yet fully functional due to a threading issue in the SimpleRemoteEPC implementation. The issue was discussed in D110530, but it needs a more thorough solution. For now we are dropping the dependency to the old `OrcRPC` here (it's been the last use-case in-tree). The test for the example is under review in ... and will be re-enabled once the threading issue is solved.
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This was broken by the switch from JITTargetAddress to ExecutorAddr in
21a06254a3a.
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When compiling on ZLinux, we got this error:
/llvm-project/llvm/examples/OrcV2Examples/LLJITWithRemoteDebugging/ \
RemoteJITUtils.h:80:65: required from here...
/usr/include/c++/7/bits/unique_ptr.h:76:22: error: invalid application of
'sizeof' to incomplete type 'llvm::orc::RemoteExecutorProcessControl'
static_assert(sizeof(_Tp)>0,
This patch just removes nullptr from the initialization of
std::unique_ptr<RemoteExecutorProcessControl> to avoid the issue.
Patch by Tung D. Le (tung@jp.ibm.com). Thanks Tung!
Reviewed By: lhames
Differential Revision: https://reviews.llvm.org/D107247
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LLJITWithRemoteDebugging
The API change originated from D104694. The LLJITWithRemoteDebugging example and the test for it were disabled while it was in the works.
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This is a first step towards consistently using the term 'executor' for the
process that executes JIT'd code. I've opted for 'executor' as the preferred
term over 'target' as target is already heavily overloaded ("the target
machine for the executor" is much clearer than "the target machine for the
target").
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The underlying TargetProcessControl API changes with D104694. Once it landed I can patch and re-enable the example.
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