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Differential D140727

[XRay] Add initial support for loongarch64
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Authored by SixWeining on Dec 28 2022, 6:08 AM.

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xen0n
xry111

Summary

Only support patching FunctionEntry/FunctionExit/FunctionTailExit for now.

Currently version 0 (which uses absolute address) is used because
LoongArch doesn't have a single 64bit PC-relative reloction type like
32bit version R_LARCH_32_PCREL.
Perhaps we can use a pair of relocations (R_LARCH_ADD64/R_LARCH_SUB64)
as replacement but that needs some changes to the backend.

Depends on D140725

Diff Detail

Repository: rG LLVM Github Monorepo

Event Timeline

SixWeining created this revision.Dec 28 2022, 6:08 AM

Herald added a project: Restricted Project. · View Herald TranscriptDec 28 2022, 6:08 AM

Herald added subscribers: Enna1, StephenFan, hiraditya, dberris. · View Herald Transcript

SixWeining requested review of this revision.Dec 28 2022, 6:08 AM

Herald added projects: Restricted Project, Restricted Project, Restricted Project. · View Herald TranscriptDec 28 2022, 6:08 AM

Herald added subscribers: llvm-commits, Restricted Project, cfe-commits. · View Herald Transcript

Harbormaster completed remote builds in B205072: Diff 485495.Dec 28 2022, 6:55 AM

D140725 is abandoned. Let me defer this change until we support 64bit PC-relative relocation for SymA - SymB.

SixWeining mentioned this in D141785: [Clang][LoongArch] Implement patchable function entry.Jan 15 2023, 5:40 AM

Revision Contents
Changeset List

Path

Size

clang/

lib/

Driver/

1 line

compiler-rt/

cmake/

Modules/

AllSupportedArchDefs.cmake

2 lines

lib/

xray/

6 lines

xray_interface.cpp

2 lines

xray_loongarch64.cpp

173 lines

xray_trampoline_loongarch64.S

121 lines

2 lines

test/

xray/

TestCases/

Posix/

always-never-instrument.cpp

2 lines

arg1-arg0-logging.cpp

2 lines

arg1-logger.cpp

2 lines

arg1-logging-implicit-this.cpp

2 lines

basic-filtering.cpp

2 lines

2 lines

clang-no-xray-instrument.cpp

2 lines

fdr-mode-inmemory.cpp

2 lines

fdr-mode-multiple.cpp

2 lines

fdr-single-thread.cpp

2 lines

fdr-thread-order.cpp

2 lines

profiling-multi-threaded.cpp

2 lines

profiling-single-threaded.cpp

2 lines

quiet-start.cpp

2 lines

llvm/

lib/

CodeGen/

XRayInstrumentation.cpp

1 line

Target/

LoongArch/

LoongArchAsmPrinter.h

6 lines

LoongArchAsmPrinter.cpp

71 lines

LoongArchInstrInfo.h

2 lines

LoongArchInstrInfo.cpp

8 lines

LoongArchSubtarget.h

1 line

XRay/

InstrumentationMap.cpp

1 line

test/

CodeGen/

LoongArch/

xray-attribute-instrumentation.ll

71 lines

Diff 485495

clang/lib/Driver/XRayArgs.cpp

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compiler-rt/cmake/Modules/AllSupportedArchDefs.cmake

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compiler-rt/lib/xray/CMakeLists.txt

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compiler-rt/lib/xray/xray_interface.cpp

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compiler-rt/lib/xray/xray_loongarch64.cpp

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compiler-rt/lib/xray/xray_trampoline_loongarch64.S

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compiler-rt/lib/xray/xray_tsc.h

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compiler-rt/test/xray/TestCases/Posix/always-never-instrument.cpp

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compiler-rt/test/xray/TestCases/Posix/arg1-arg0-logging.cpp

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compiler-rt/test/xray/TestCases/Posix/arg1-logger.cpp

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compiler-rt/test/xray/TestCases/Posix/arg1-logging-implicit-this.cpp

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compiler-rt/test/xray/TestCases/Posix/basic-filtering.cpp

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compiler-rt/test/xray/TestCases/Posix/c-test.cpp

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compiler-rt/test/xray/TestCases/Posix/clang-no-xray-instrument.cpp

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compiler-rt/test/xray/TestCases/Posix/fdr-mode-inmemory.cpp

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compiler-rt/test/xray/TestCases/Posix/fdr-mode-multiple.cpp

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compiler-rt/test/xray/TestCases/Posix/fdr-single-thread.cpp

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compiler-rt/test/xray/TestCases/Posix/fdr-thread-order.cpp

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compiler-rt/test/xray/TestCases/Posix/profiling-multi-threaded.cpp

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compiler-rt/test/xray/TestCases/Posix/profiling-single-threaded.cpp

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compiler-rt/test/xray/TestCases/Posix/quiet-start.cpp

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llvm/lib/CodeGen/XRayInstrumentation.cpp

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llvm/lib/Target/LoongArch/LoongArchAsmPrinter.h

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llvm/lib/Target/LoongArch/LoongArchAsmPrinter.cpp

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llvm/lib/Target/LoongArch/LoongArchInstrInfo.h

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llvm/lib/Target/LoongArch/LoongArchInstrInfo.cpp

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llvm/lib/Target/LoongArch/LoongArchSubtarget.h

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llvm/lib/XRay/InstrumentationMap.cpp

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llvm/test/CodeGen/LoongArch/xray-attribute-instrumentation.ll

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