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From bb121e49b1a05e86c88274a89f5229b4ec6939c6 Mon Sep 17 00:00:00 2001
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From: Yonghong Song <yhs@fb.com>
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Date: Tue, 25 May 2021 19:58:00 -0700
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Subject: [PATCH 2/2] Fix a llvm compilation error
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Current llvm trunk (https://github.com/llvm/llvm-project)
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will cause the following compilation errors:
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/home/yhs/work/bcc/src/cc/bcc_debug.cc: In member function ‘void ebpf::SourceDebugger::dump()’:
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/home/yhs/work/bcc/src/cc/bcc_debug.cc:135:75: error: no matching function for call to
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‘llvm::MCContext::MCContext(llvm::Triple&, std::unique_ptr<llvm::MCAsmInfo>::pointer,
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std::unique_ptr<llvm::MCRegisterInfo>::pointer, llvm::MCObjectFileInfo*,
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std::unique_ptr<llvm::MCSubtargetInfo>::pointer, std::nullptr_t)’
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MCContext Ctx(TheTriple, MAI.get(), MRI.get(), &MOFI, STI.get(), nullptr);
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^
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......
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This is because upstream patch https://reviews.llvm.org/D101921
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refactored MCObjectFileInfo initialization and changed MCContext
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constructor signature.
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This patch fixed the issue by following the new code patterns
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in https://reviews.llvm.org/D101921.
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---
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src/cc/bcc_debug.cc | 3 ++-
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1 file changed, 2 insertions(+), 1 deletion(-)
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diff --git a/src/cc/bcc_debug.cc b/src/cc/bcc_debug.cc
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index 775c9141..97d6d95b 100644
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--- a/src/cc/bcc_debug.cc
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+++ b/src/cc/bcc_debug.cc
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@@ -132,7 +132,8 @@ void SourceDebugger::dump() {
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T->createMCSubtargetInfo(TripleStr, "", ""));
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MCObjectFileInfo MOFI;
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#if LLVM_MAJOR_VERSION >= 13
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- MCContext Ctx(TheTriple, MAI.get(), MRI.get(), &MOFI, STI.get(), nullptr);
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+ MCContext Ctx(TheTriple, MAI.get(), MRI.get(), STI.get(), nullptr);
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+ Ctx.setObjectFileInfo(&MOFI);
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MOFI.initMCObjectFileInfo(Ctx, false, false);
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#else
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MCContext Ctx(MAI.get(), MRI.get(), &MOFI, nullptr);
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--
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2.31.1
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