Revert "YT-19324: move YT provider to ydb/library/yql"

This reverts commit ca272f12fdd0e8d5c3e957fc87939148f1caaf72, reversing
changes made to 49f8acfc8b0b5c0071b804423bcf53fda26c7c12.

22 files changed, 0 insertions, 943 deletions

diff --git a/library/cpp/yt/backtrace/backtrace-inl.h b/library/cpp/yt/backtrace/backtrace-inl.h
deleted file mode 100644
index b78eeffd75f..00000000000
--- a/library/cpp/yt/backtrace/backtrace-inl.h
+++ /dev/null
@@ -1,36 +0,0 @@
-#pragma once
-#ifndef BACKTRACE_INL_H_
-#error "Direct inclusion of this file is not allowed, include backtrace.h"
-// For the sake of sane code completion.
-#include "backtrace.h"
-#endif
-
-#include <util/system/compiler.h>
-
-namespace NYT::NBacktrace {
-
-////////////////////////////////////////////////////////////////////////////////
-
-template <class TCursor>
-Y_NO_INLINE TBacktrace GetBacktrace(
-    TCursor* cursor,
-    TBacktraceBuffer buffer,
-    int framesToSkip)
-{
-    // Account for the current frame.
-    ++framesToSkip;
-    size_t frameCount = 0;
-    while (frameCount < buffer.size() && !cursor->IsFinished()) {
-        if (framesToSkip > 0) {
-            --framesToSkip;
-        } else {
-            buffer[frameCount++] = cursor->GetCurrentIP();
-        }
-        cursor->MoveNext();
-    }
-    return {buffer.begin(), frameCount};
-}
-
-////////////////////////////////////////////////////////////////////////////////
-
-} // namespace NYT::NBacktrace
diff --git a/library/cpp/yt/backtrace/backtrace.cpp b/library/cpp/yt/backtrace/backtrace.cpp
deleted file mode 100644
index 153a0a5dd02..00000000000
--- a/library/cpp/yt/backtrace/backtrace.cpp
+++ /dev/null
@@ -1,18 +0,0 @@
-#include "backtrace.h"
-
-namespace NYT::NBacktrace {
-
-////////////////////////////////////////////////////////////////////////////////
-
-TString SymbolizeBacktrace(TBacktrace backtrace)
-{
-    TString result;
-    SymbolizeBacktrace(
-        backtrace,
-        [&] (TStringBuf str) { result += str; });
-    return result;
-}
-
-////////////////////////////////////////////////////////////////////////////////
-
-} // namespace NYT::NBacktrace
diff --git a/library/cpp/yt/backtrace/backtrace.h b/library/cpp/yt/backtrace/backtrace.h
deleted file mode 100644
index ea70d9558ca..00000000000
--- a/library/cpp/yt/backtrace/backtrace.h
+++ /dev/null
@@ -1,45 +0,0 @@
-#pragma once
-
-#include <library/cpp/yt/memory/range.h>
-
-namespace NYT::NBacktrace {
-
-////////////////////////////////////////////////////////////////////////////////
-
-using TBacktrace = TRange<const void*>;
-using TBacktraceBuffer = TMutableRange<const void*>;
-
-//! Obtains a backtrace via a given cursor.
-/*!
- *  \param buffer is the buffer where the backtrace is written to
- *  \param framesToSkip is the number of top frames to skip
- *  \returns the portion of #buffer that has actually been filled
- */
-template <class TCursor>
-TBacktrace GetBacktrace(
-    TCursor* cursor,
-    TBacktraceBuffer buffer,
-    int framesToSkip);
-
-//! Symbolizes a backtrace invoking a given callback for each frame.
-/*!
- *  \param backtrace Backtrace to symbolize
- *  \param frameCallback Callback to invoke per each frame
- */
-void SymbolizeBacktrace(
-    TBacktrace backtrace,
-    const std::function<void(TStringBuf)>& frameCallback);
-
-//! Symbolizes a backtrace to a string.
-/*!
- *  \param backtrace Backtrace to symbolize
- */
-TString SymbolizeBacktrace(TBacktrace backtrace);
-
-////////////////////////////////////////////////////////////////////////////////
-
-} // namespace NYT::NBacktrace
-
-#define BACKTRACE_INL_H_
-#include "backtrace-inl.h"
-#undef BACKTRACE_INL_H_
diff --git a/library/cpp/yt/backtrace/cursors/dummy/dummy_cursor.cpp b/library/cpp/yt/backtrace/cursors/dummy/dummy_cursor.cpp
deleted file mode 100644
index ea6e0bc08e7..00000000000
--- a/library/cpp/yt/backtrace/cursors/dummy/dummy_cursor.cpp
+++ /dev/null
@@ -1,22 +0,0 @@
-#include "dummy_cursor.h"
-
-namespace NYT::NBacktrace {
-
-////////////////////////////////////////////////////////////////////////////////
-
-bool TDummyCursor::IsFinished() const
-{
-    return true;
-}
-
-const void* TDummyCursor::GetCurrentIP() const
-{
-    return nullptr;
-}
-
-void TDummyCursor::MoveNext()
-{ }
-
-////////////////////////////////////////////////////////////////////////////////
-
-} // namespace NYT::NBacktrace
diff --git a/library/cpp/yt/backtrace/cursors/dummy/dummy_cursor.h b/library/cpp/yt/backtrace/cursors/dummy/dummy_cursor.h
deleted file mode 100644
index b47d7d2aba8..00000000000
--- a/library/cpp/yt/backtrace/cursors/dummy/dummy_cursor.h
+++ /dev/null
@@ -1,17 +0,0 @@
-#pragma once
-
-namespace NYT::NBacktrace {
-
-////////////////////////////////////////////////////////////////////////////////
-
-class TDummyCursor
-{
-public:
-    bool IsFinished() const;
-    const void* GetCurrentIP() const;
-    void MoveNext();
-};
-
-////////////////////////////////////////////////////////////////////////////////
-
-} // namespace NYT::NBacktrace
diff --git a/library/cpp/yt/backtrace/cursors/dummy/ya.make b/library/cpp/yt/backtrace/cursors/dummy/ya.make
deleted file mode 100644
index 49fd7be050c..00000000000
--- a/library/cpp/yt/backtrace/cursors/dummy/ya.make
+++ /dev/null
@@ -1,9 +0,0 @@
-LIBRARY()
-
-INCLUDE(${ARCADIA_ROOT}/library/cpp/yt/ya_cpp.make.inc)
-
-SRCS(
-    dummy_cursor.cpp
-)
-
-END()
diff --git a/library/cpp/yt/backtrace/cursors/frame_pointer/frame_pointer_cursor.cpp b/library/cpp/yt/backtrace/cursors/frame_pointer/frame_pointer_cursor.cpp
deleted file mode 100644
index 290d30c3cec..00000000000
--- a/library/cpp/yt/backtrace/cursors/frame_pointer/frame_pointer_cursor.cpp
+++ /dev/null
@@ -1,146 +0,0 @@
-#include "frame_pointer_cursor.h"
-
-#include <util/generic/size_literals.h>
-
-#include <array>
-
-namespace NYT::NBacktrace {
-
-////////////////////////////////////////////////////////////////////////////////
-
-TFramePointerCursor::TFramePointerCursor(
-    TSafeMemoryReader* memoryReader,
-    const TFramePointerCursorContext& context)
-    : MemoryReader_(memoryReader)
-    , Rip_(reinterpret_cast<const void*>(context.Rip))
-    , Rbp_(reinterpret_cast<const void*>(context.Rbp))
-    , StartRsp_(reinterpret_cast<const void*>(context.Rsp))
-{ }
-
-bool TFramePointerCursor::IsFinished() const
-{
-    return Finished_;
-}
-
-const void* TFramePointerCursor::GetCurrentIP() const
-{
-    return Rip_;
-}
-
-void TFramePointerCursor::MoveNext()
-{
-    if (Finished_) {
-        return;
-    }
-
-    auto add = [] (auto ptr, auto delta) {
-        return reinterpret_cast<void*>(reinterpret_cast<intptr_t>(ptr) + delta);
-    };
-
-    auto checkPtr = [&] (auto ptr) {
-        ui8 data;
-        return MemoryReader_->Read(ptr, &data);
-    };
-
-    // We try unwinding stack manually by following frame pointers.
-    //
-    // We assume that stack does not span more than 4mb.
-
-    if (First_) {
-        First_ = false;
-
-        // For the first frame there are three special cases where naive
-        // unwinding would skip the caller frame.
-        //
-        //   1) Right after call instruction, rbp points to frame of a caller.
-        //   2) Right after "push rbp" instruction.
-        //   3) Right before ret instruction, rbp points to frame of a caller.
-        //
-        // We read current instruction and try to detect such cases.
-        //
-        //  55               push %rbp
-        //  48 89 e5         mov %rsp, %rbp
-        //  c3               retq
-
-        std::array<ui8, 3> data;
-        if (!MemoryReader_->Read(Rip_, &data)) {
-            Finished_ = true;
-            return;
-        }
-
-        if (data[0] == 0xc3 || data[0] == 0x55) {
-            void* savedRip;
-            if (!MemoryReader_->Read(StartRsp_, &savedRip)) {
-                Finished_ = true;
-                return;
-            }
-
-            // Avoid infinite loop.
-            if (Rip_ == savedRip) {
-                Finished_ = true;
-                return;
-            }
-
-            // Detect garbage pointer.
-            if (!checkPtr(savedRip)) {
-                Finished_ = true;
-                return;
-            }
-
-            Rip_ = savedRip;
-            return;
-        }
-
-        if (data[0] == 0x48 && data[1] == 0x89 && data[2] == 0xe5) {
-            void* savedRip;
-            if (!MemoryReader_->Read(add(StartRsp_, 8), &savedRip)) {
-                Finished_ = true;
-                return;
-            }
-
-            // Avoid infinite loop.
-            if (Rip_ == savedRip) {
-                Finished_ = true;
-                return;
-            }
-
-            // Detect garbage pointer.
-            if (!checkPtr(savedRip)) {
-                Finished_ = true;
-                return;
-            }
-
-            Rip_ = savedRip;
-            return;
-        }
-    }
-
-    const void* savedRbp;
-    const void* savedRip;
-    if (!MemoryReader_->Read(Rbp_, &savedRbp) || !MemoryReader_->Read(add(Rbp_, 8), &savedRip)) {
-        Finished_ = true;
-        return;
-    }
-
-    if (!checkPtr(savedRbp)) {
-        Finished_ = true;
-        return;
-    }
-
-    if (!checkPtr(savedRip)) {
-        Finished_ = true;
-        return;
-    }
-
-    if (savedRbp < StartRsp_ || savedRbp > add(StartRsp_, 4_MB)) {
-        Finished_ = true;
-        return;
-    }
-
-    Rip_ = savedRip;
-    Rbp_ = savedRbp;
-}
-
-////////////////////////////////////////////////////////////////////////////////
-
-} // namespace NYT::NBacktrace
diff --git a/library/cpp/yt/backtrace/cursors/frame_pointer/frame_pointer_cursor.h b/library/cpp/yt/backtrace/cursors/frame_pointer/frame_pointer_cursor.h
deleted file mode 100644
index 7a6eaf431b8..00000000000
--- a/library/cpp/yt/backtrace/cursors/frame_pointer/frame_pointer_cursor.h
+++ /dev/null
@@ -1,39 +0,0 @@
-#pragma once
-
-#include <library/cpp/yt/memory/safe_memory_reader.h>
-
-namespace NYT::NBacktrace {
-
-////////////////////////////////////////////////////////////////////////////////
-
-struct TFramePointerCursorContext
-{
-    ui64 Rip;
-    ui64 Rsp;
-    ui64 Rbp;
-};
-
-class TFramePointerCursor
-{
-public:
-    TFramePointerCursor(
-        TSafeMemoryReader* memoryReader,
-        const TFramePointerCursorContext& context);
-
-    bool IsFinished() const;
-    const void* GetCurrentIP() const;
-    void MoveNext();
-
-private:
-    TSafeMemoryReader* MemoryReader_;
-    bool Finished_ = false;
-    bool First_ = true;
-
-    const void* Rip_ = nullptr;
-    const void* Rbp_ = nullptr;
-    const void* StartRsp_ = nullptr;
-};
-
-////////////////////////////////////////////////////////////////////////////////
-
-} // namespace NYT::NBacktrace
diff --git a/library/cpp/yt/backtrace/cursors/frame_pointer/ya.make b/library/cpp/yt/backtrace/cursors/frame_pointer/ya.make
deleted file mode 100644
index cb85d70315c..00000000000
--- a/library/cpp/yt/backtrace/cursors/frame_pointer/ya.make
+++ /dev/null
@@ -1,9 +0,0 @@
-LIBRARY()
-
-INCLUDE(${ARCADIA_ROOT}/library/cpp/yt/ya_cpp.make.inc)
-
-SRCS(
-    frame_pointer_cursor.cpp
-)
-
-END()
diff --git a/library/cpp/yt/backtrace/cursors/interop/interop.cpp b/library/cpp/yt/backtrace/cursors/interop/interop.cpp
deleted file mode 100644
index b4e6cfbe6ed..00000000000
--- a/library/cpp/yt/backtrace/cursors/interop/interop.cpp
+++ /dev/null
@@ -1,102 +0,0 @@
-#include "interop.h"
-
-namespace NYT::NBacktrace {
-
-////////////////////////////////////////////////////////////////////////////////
-
-TFramePointerCursorContext FramePointerCursorContextFromUcontext(const ucontext_t& ucontext)
-{
-#if defined(_linux_)
-    return {
-        .Rip = static_cast<ui64>(ucontext.uc_mcontext.gregs[REG_RIP]),
-        .Rsp = static_cast<ui64>(ucontext.uc_mcontext.gregs[REG_RSP]),
-        .Rbp = static_cast<ui64>(ucontext.uc_mcontext.gregs[REG_RBP]),
-    };
-#elif defined(_darwin_)
-    return {
-        .Rip = static_cast<ui64>(ucontext.uc_mcontext->__ss.__rip),
-        .Rsp = static_cast<ui64>(ucontext.uc_mcontext->__ss.__rsp),
-        .Rbp = static_cast<ui64>(ucontext.uc_mcontext->__ss.__rbp),
-    };
-#else
-    #error Unsupported platform
-#endif
-}
-
-std::optional<unw_context_t> TrySynthesizeLibunwindContextFromMachineContext(
-    const TContMachineContext& machineContext)
-{
-    unw_context_t unwindContext;
-    if (unw_getcontext(&unwindContext) != 0) {
-        return {};
-    }
-
-    // Some dirty hacks follow.
-    struct TUnwindContextRegisters
-    {
-        ui64 Rax;
-        ui64 Rbx;
-        ui64 Rcx;
-        ui64 Rdx;
-        ui64 Rdi;
-        ui64 Rsi;
-        ui64 Rbp;
-        ui64 Rsp;
-        ui64 R8;
-        ui64 R9;
-        ui64 R10;
-        ui64 R11;
-        ui64 R12;
-        ui64 R13;
-        ui64 R14;
-        ui64 R15;
-        ui64 Rip;
-        ui64 Rflags;
-        ui64 CS;
-        ui64 FS;
-        ui64 GS;
-    };
-
-    struct TMachineContextRegisters
-    {
-        ui64 Rbx;
-        ui64 Rbp;
-        ui64 R12;
-        ui64 R13;
-        ui64 R14;
-        ui64 R15;
-        ui64 Rsp;
-        ui64 Rip;
-    };
-
-    static_assert(sizeof(TContMachineContext) >= sizeof(TMachineContextRegisters));
-    static_assert(sizeof(unw_context_t) >= sizeof(TUnwindContextRegisters));
-    const auto* machineContextRegisters = reinterpret_cast<const TMachineContextRegisters*>(&machineContext);
-    auto* unwindContextRegisters = reinterpret_cast<TUnwindContextRegisters*>(&unwindContext);
-    #define XX(register) unwindContextRegisters->register = machineContextRegisters->register;
-    XX(Rbx)
-    XX(Rbp)
-    XX(R12)
-    XX(R13)
-    XX(R14)
-    XX(R15)
-    XX(Rsp)
-    XX(Rip)
-    #undef XX
-    return unwindContext;
-}
-
-TFramePointerCursorContext FramePointerCursorContextFromLibunwindCursor(
-    const unw_cursor_t& cursor)
-{
-    TFramePointerCursorContext context{};
-    auto& mutableCursor = const_cast<unw_cursor_t&>(cursor);
-    YT_VERIFY(unw_get_reg(&mutableCursor, UNW_REG_IP, &context.Rip) == 0);
-    YT_VERIFY(unw_get_reg(&mutableCursor, UNW_X86_64_RSP, &context.Rsp) == 0);
-    YT_VERIFY(unw_get_reg(&mutableCursor, UNW_X86_64_RBP, &context.Rbp) == 0);
-    return context;
-}
-
-////////////////////////////////////////////////////////////////////////////////
-
-} // namespace NYT::NBacktrace
diff --git a/library/cpp/yt/backtrace/cursors/interop/interop.h b/library/cpp/yt/backtrace/cursors/interop/interop.h
deleted file mode 100644
index 62e7177107c..00000000000
--- a/library/cpp/yt/backtrace/cursors/interop/interop.h
+++ /dev/null
@@ -1,25 +0,0 @@
-#pragma once
-
-#include <library/cpp/yt/backtrace/cursors/frame_pointer/frame_pointer_cursor.h>
-
-#include <contrib/libs/libunwind/include/libunwind.h>
-
-#include <util/system/context.h>
-
-#include <optional>
-
-namespace NYT::NBacktrace {
-
-////////////////////////////////////////////////////////////////////////////////
-
-TFramePointerCursorContext FramePointerCursorContextFromUcontext(const ucontext_t& ucontext);
-
-std::optional<unw_context_t> TrySynthesizeLibunwindContextFromMachineContext(
-    const TContMachineContext& machineContext);
-
-TFramePointerCursorContext FramePointerCursorContextFromLibunwindCursor(
-    const unw_cursor_t& uwCursor);
-
-////////////////////////////////////////////////////////////////////////////////
-
-} // namespace NYT::NBacktrace
diff --git a/library/cpp/yt/backtrace/cursors/interop/ya.make b/library/cpp/yt/backtrace/cursors/interop/ya.make
deleted file mode 100644
index 6637f6a9b4a..00000000000
--- a/library/cpp/yt/backtrace/cursors/interop/ya.make
+++ /dev/null
@@ -1,14 +0,0 @@
-LIBRARY()
-
-INCLUDE(${ARCADIA_ROOT}/library/cpp/yt/ya_cpp.make.inc)
-
-SRCS(
-    interop.cpp
-)
-
-PEERDIR(
-    library/cpp/yt/backtrace/cursors/frame_pointer
-    contrib/libs/libunwind
-)
-
-END()
diff --git a/library/cpp/yt/backtrace/cursors/libunwind/libunwind_cursor.cpp b/library/cpp/yt/backtrace/cursors/libunwind/libunwind_cursor.cpp
deleted file mode 100644
index f814753034a..00000000000
--- a/library/cpp/yt/backtrace/cursors/libunwind/libunwind_cursor.cpp
+++ /dev/null
@@ -1,70 +0,0 @@
-#include "libunwind_cursor.h"
-
-namespace NYT::NBacktrace {
-
-////////////////////////////////////////////////////////////////////////////////
-
-TLibunwindCursor::TLibunwindCursor()
-{
-    if (unw_getcontext(&Context_) != 0) {
-        Finished_ = true;
-        return;
-    }
-
-    Initialize();
-}
-
-TLibunwindCursor::TLibunwindCursor(const unw_context_t& context)
-    : Context_(context)
-{
-    Initialize();
-}
-
-void TLibunwindCursor::Initialize()
-{
-    if (unw_init_local(&Cursor_, &Context_) != 0) {
-        Finished_ = true;
-        return;
-    }
-
-    ReadCurrentIP();
-}
-
-bool TLibunwindCursor::IsFinished() const
-{
-    return Finished_;
-}
-
-const void* TLibunwindCursor::GetCurrentIP() const
-{
-    return CurrentIP_;
-}
-
-void TLibunwindCursor::MoveNext()
-{
-    if (Finished_) {
-        return;
-    }
-
-    if (unw_step(&Cursor_) <= 0) {
-        Finished_ = true;
-        return;
-    }
-
-    ReadCurrentIP();
-}
-
-void TLibunwindCursor::ReadCurrentIP()
-{
-    unw_word_t ip = 0;
-    if (unw_get_reg(&Cursor_, UNW_REG_IP, &ip) < 0) {
-        Finished_ = true;
-        return;
-    }
-
-    CurrentIP_ = reinterpret_cast<const void*>(ip);
-}
-
-////////////////////////////////////////////////////////////////////////////////
-
-} // namespace NYT::NBacktrace
diff --git a/library/cpp/yt/backtrace/cursors/libunwind/libunwind_cursor.h b/library/cpp/yt/backtrace/cursors/libunwind/libunwind_cursor.h
deleted file mode 100644
index 08b01d07ef7..00000000000
--- a/library/cpp/yt/backtrace/cursors/libunwind/libunwind_cursor.h
+++ /dev/null
@@ -1,33 +0,0 @@
-#pragma once
-
-#include <contrib/libs/libunwind/include/libunwind.h>
-
-namespace NYT::NBacktrace {
-
-////////////////////////////////////////////////////////////////////////////////
-
-class TLibunwindCursor
-{
-public:
-    TLibunwindCursor();
-    explicit TLibunwindCursor(const unw_context_t& context);
-
-    bool IsFinished() const;
-    const void* GetCurrentIP() const;
-    void MoveNext();
-
-private:
-    unw_context_t Context_;
-    unw_cursor_t Cursor_;
-
-    bool Finished_ = false;
-
-    const void* CurrentIP_ = nullptr;
-
-    void Initialize();
-    void ReadCurrentIP();
-};
-
-////////////////////////////////////////////////////////////////////////////////
-
-} // namespace NYT::NBacktrace
diff --git a/library/cpp/yt/backtrace/cursors/libunwind/ya.make b/library/cpp/yt/backtrace/cursors/libunwind/ya.make
deleted file mode 100644
index 8f3a8c5284c..00000000000
--- a/library/cpp/yt/backtrace/cursors/libunwind/ya.make
+++ /dev/null
@@ -1,13 +0,0 @@
-LIBRARY()
-
-INCLUDE(${ARCADIA_ROOT}/library/cpp/yt/ya_cpp.make.inc)
-
-SRCS(
-    libunwind_cursor.cpp
-)
-
-PEERDIR(
-    contrib/libs/libunwind
-)
-
-END()
diff --git a/library/cpp/yt/backtrace/symbolizers/dummy/dummy_symbolizer.cpp b/library/cpp/yt/backtrace/symbolizers/dummy/dummy_symbolizer.cpp
deleted file mode 100644
index 19cb41e7951..00000000000
--- a/library/cpp/yt/backtrace/symbolizers/dummy/dummy_symbolizer.cpp
+++ /dev/null
@@ -1,25 +0,0 @@
-#include <library/cpp/yt/backtrace/backtrace.h>
-
-#include <library/cpp/yt/string/raw_formatter.h>
-
-namespace NYT::NBacktrace {
-
-////////////////////////////////////////////////////////////////////////////////
-
-void SymbolizeBacktrace(
-    TBacktrace backtrace,
-    const std::function<void(TStringBuf)>& frameCallback)
-{
-    for (int index = 0; index < std::ssize(backtrace); ++index) {
-        TRawFormatter<1024> formatter;
-        formatter.AppendNumber(index + 1, 10, 2);
-        formatter.AppendString(". ");
-        formatter.AppendNumberAsHexWithPadding(reinterpret_cast<uintptr_t>(backtrace[index]), 12);
-        formatter.AppendString("\n");
-        frameCallback(formatter.GetBuffer());
-    }
-}
-
-////////////////////////////////////////////////////////////////////////////////
-
-} // namespace NYT::NBacktrace
diff --git a/library/cpp/yt/backtrace/symbolizers/dwarf/dwarf_symbolizer.cpp b/library/cpp/yt/backtrace/symbolizers/dwarf/dwarf_symbolizer.cpp
deleted file mode 100644
index f5d02aaa332..00000000000
--- a/library/cpp/yt/backtrace/symbolizers/dwarf/dwarf_symbolizer.cpp
+++ /dev/null
@@ -1,64 +0,0 @@
-#include <library/cpp/yt/backtrace/backtrace.h>
-
-#include <library/cpp/dwarf_backtrace/backtrace.h>
-
-#include <library/cpp/yt/string/raw_formatter.h>
-
-namespace NYT::NBacktrace {
-
-////////////////////////////////////////////////////////////////////////////////
-
-void SymbolizeBacktrace(
-    TBacktrace backtrace,
-    const std::function<void(TStringBuf)>& frameCallback)
-{
-    auto error = NDwarf::ResolveBacktrace({backtrace.begin(), backtrace.size()}, [&] (const NDwarf::TLineInfo& info) {
-        TRawFormatter<1024> formatter;
-        formatter.AppendNumber(info.Index + 1, 10, 2);
-        formatter.AppendString(". ");
-        formatter.AppendString("0x");
-        const int width = (sizeof(void*) == 8 ? 12 : 8);
-        // 12 for x86_64 because higher bits are always zeroed.
-        formatter.AppendNumber(info.Address, 16, width, '0');
-        formatter.AppendString(" in ");
-        formatter.AppendString(info.FunctionName);
-        const int bytesToAppendEstimate = 4 + info.FileName.Size() + 1 + 4 /* who cares about line numbers > 9999 */ + 1;
-        if (formatter.GetBytesRemaining() < bytesToAppendEstimate) {
-            const int offset = formatter.GetBytesRemaining() - bytesToAppendEstimate;
-            if (formatter.GetBytesWritten() + offset >= 0) {
-                formatter.Advance(offset);
-            }
-        }
-        formatter.AppendString(" at ");
-        formatter.AppendString(info.FileName);
-        formatter.AppendChar(':');
-        formatter.AppendNumber(info.Line);
-        if (formatter.GetBytesRemaining() == 0) {
-            formatter.Revert(1);
-        }
-        formatter.AppendString("\n");
-        frameCallback(formatter.GetBuffer());
-        // Call the callback exactly `frameCount` times,
-        // even if there are inline functions and one frame resolved to several lines.
-        // It needs for case when caller uses `frameCount` less than 100 for pretty formatting.
-        if (info.Index + 1 == std::ssize(backtrace)) {
-            return NDwarf::EResolving::Break;
-        }
-        return NDwarf::EResolving::Continue;
-    });
-    if (error) {
-        TRawFormatter<1024> formatter;
-        formatter.AppendString("*** Error symbolizing backtrace via Dwarf\n");
-        formatter.AppendString("***   Code: ");
-        formatter.AppendNumber(error->Code);
-        formatter.AppendString("\n");
-        formatter.AppendString("***   Message: ");
-        formatter.AppendString(error->Message);
-        formatter.AppendString("\n");
-        frameCallback(formatter.GetBuffer());
-    }
-}
-
-////////////////////////////////////////////////////////////////////////////////
-
-} // namespace NYT::NBacktrace
diff --git a/library/cpp/yt/backtrace/symbolizers/dwarf/ya.make b/library/cpp/yt/backtrace/symbolizers/dwarf/ya.make
deleted file mode 100644
index bffeb676d8b..00000000000
--- a/library/cpp/yt/backtrace/symbolizers/dwarf/ya.make
+++ /dev/null
@@ -1,18 +0,0 @@
-LIBRARY()
-
-SRCS(
-    GLOBAL dwarf_symbolizer.cpp
-)
-
-PEERDIR(
-    library/cpp/dwarf_backtrace
-    library/cpp/yt/backtrace
-)
-
-END()
-
-IF (BUILD_TYPE == "DEBUG" OR BUILD_TYPE == "PROFILE")
-    RECURSE_FOR_TESTS(
-        unittests
-    )
-ENDIF()
diff --git a/library/cpp/yt/backtrace/symbolizers/dynload/dynload_symbolizer.cpp b/library/cpp/yt/backtrace/symbolizers/dynload/dynload_symbolizer.cpp
deleted file mode 100644
index 37ebda8e488..00000000000
--- a/library/cpp/yt/backtrace/symbolizers/dynload/dynload_symbolizer.cpp
+++ /dev/null
@@ -1,113 +0,0 @@
-#include <library/cpp/yt/backtrace/backtrace.h>
-
-#include <library/cpp/yt/string/raw_formatter.h>
-
-#include <util/system/compiler.h>
-
-#include <dlfcn.h>
-#include <cxxabi.h>
-
-namespace NYT::NBacktrace {
-
-////////////////////////////////////////////////////////////////////////////////
-
-namespace {
-
-int GetSymbolInfo(const void* pc, char* buffer, int length)
-{
-    TBaseFormatter formatter(buffer, length);
-
-    // See http://www.codesourcery.com/cxx-abi/abi.html#mangling
-    // And, yes, dladdr() is not async signal safe. We can substitute it
-    // with hand-written symbolization code from google-glog in case of any trouble.
-    Dl_info info;
-    if (!dladdr(pc, &info)) {
-        return 0;
-    }
-
-    /*
-     * typedef struct {
-     *     const char *dli_fname;  // Pathname of shared object that
-     *                             // contains address
-     *     void       *dli_fbase;  // Address at which shared object
-     *                             // is loaded
-     *     const char *dli_sname;  // Name of nearest symbol with address
-     *                             // lower than addr
-     *     void       *dli_saddr;  // Exact address of symbol named
-     *                             // in dli_sname
-     * } Dl_info;
-     *
-     * If no symbol matching addr could be found, then dli_sname and dli_saddr are set to NULL.
-     */
-
-    if (info.dli_sname && info.dli_saddr) {
-        formatter.AppendString("<");
-        int demangleStatus = 0;
-
-        if (info.dli_sname[0] == '_' && info.dli_sname[1] == 'Z') {
-            // This is also not async signal safe.
-            // But (ta-dah!) we can replace it with symbolization code from google-glob.
-            char* demangledName = abi::__cxa_demangle(info.dli_sname, 0, 0, &demangleStatus);
-            if (demangleStatus == 0) {
-                formatter.AppendString(demangledName);
-            } else {
-                formatter.AppendString(info.dli_sname);
-            }
-            free(demangledName);
-        } else {
-            formatter.AppendString(info.dli_sname);
-        }
-        formatter.AppendString("+");
-        formatter.AppendNumber((char*)pc - (char*)info.dli_saddr);
-        formatter.AppendString(">");
-        formatter.AppendString(" ");
-    }
-
-    if (info.dli_fname && info.dli_fbase) {
-        formatter.AppendString("(");
-        formatter.AppendString(info.dli_fname);
-        formatter.AppendString("+");
-        formatter.AppendNumber((char*)pc - (char*)info.dli_fbase);
-        formatter.AppendString(")");
-    }
-    return formatter.GetBytesWritten();
-}
-
-void DumpStackFrameInfo(TBaseFormatter* formatter, const void* pc)
-{
-    formatter->AppendString("@ ");
-    const int width = (sizeof(void*) == 8 ? 12 : 8) + 2;
-    // +2 for "0x"; 12 for x86_64 because higher bits are always zeroed.
-    formatter->AppendNumberAsHexWithPadding(reinterpret_cast<uintptr_t>(pc), width);
-    formatter->AppendString(" ");
-    // Get the symbol from the previous address of PC,
-    // because PC may be in the next function.
-    formatter->Advance(GetSymbolInfo(
-        reinterpret_cast<const char*>(pc) - 1,
-        formatter->GetCursor(),
-        formatter->GetBytesRemaining()));
-    if (formatter->GetBytesRemaining() == 0) {
-        formatter->Revert(1);
-    }
-    formatter->AppendString("\n");
-}
-
-} // namespace
-
-Y_WEAK void SymbolizeBacktrace(
-    TBacktrace backtrace,
-    const std::function<void(TStringBuf)>& frameCallback)
-{
-    for (int i = 0; i < std::ssize(backtrace); ++i) {
-        TRawFormatter<1024> formatter;
-        formatter.Reset();
-        formatter.AppendNumber(i + 1, 10, 2);
-        formatter.AppendString(". ");
-        DumpStackFrameInfo(&formatter, backtrace[i]);
-        frameCallback(formatter.GetBuffer());
-    }
-}
-
-////////////////////////////////////////////////////////////////////////////////
-
-} // namespace NYT::NBacktrace
diff --git a/library/cpp/yt/backtrace/unittests/backtrace_ut.cpp b/library/cpp/yt/backtrace/unittests/backtrace_ut.cpp
deleted file mode 100644
index 5992b692773..00000000000
--- a/library/cpp/yt/backtrace/unittests/backtrace_ut.cpp
+++ /dev/null
@@ -1,61 +0,0 @@
-#include <gtest/gtest.h>
-
-#include <gmock/gmock.h>
-
-#include <library/cpp/yt/memory/safe_memory_reader.h>
-
-#include <library/cpp/yt/backtrace/cursors/frame_pointer/frame_pointer_cursor.h>
-
-#include <library/cpp/yt/backtrace/cursors/interop/interop.h>
-
-#include <util/system/compiler.h>
-
-#include <contrib/libs/libunwind/include/libunwind.h>
-
-namespace NYT::NBacktrace {
-namespace {
-
-////////////////////////////////////////////////////////////////////////////////
-
-template <int Depth, class TFn>
-Y_NO_INLINE void RunInDeepStack(TFn cb)
-{
-    if constexpr (Depth == 0) {
-        cb();
-    } else {
-        std::vector<int> touchMem;
-        touchMem.push_back(0);
-
-        RunInDeepStack<Depth-1>(cb);
-
-        DoNotOptimizeAway(touchMem);
-    }
-}
-
-TEST(TFramePointerCursor, FramePointerCursor)
-{
-    std::vector<const void*> backtrace;
-    RunInDeepStack<64>([&] {
-        unw_context_t unwContext;
-        ASSERT_TRUE(unw_getcontext(&unwContext) == 0);
-
-        unw_cursor_t unwCursor;
-        ASSERT_TRUE(unw_init_local(&unwCursor, &unwContext) == 0);
-
-        TSafeMemoryReader reader;
-        auto fpCursorContext = NBacktrace::FramePointerCursorContextFromLibunwindCursor(unwCursor);
-        NBacktrace::TFramePointerCursor fpCursor(&reader, fpCursorContext);
-
-        while (!fpCursor.IsFinished()) {
-            backtrace.push_back(fpCursor.GetCurrentIP());
-            fpCursor.MoveNext();
-        }
-    });
-
-    ASSERT_THAT(backtrace, testing::SizeIs(testing::Ge(64u)));
-}
-
-////////////////////////////////////////////////////////////////////////////////
-
-} // namespace
-} // namespace NYT::NBacktrace
diff --git a/library/cpp/yt/backtrace/unittests/ya.make b/library/cpp/yt/backtrace/unittests/ya.make
deleted file mode 100644
index 89e55a95ef4..00000000000
--- a/library/cpp/yt/backtrace/unittests/ya.make
+++ /dev/null
@@ -1,20 +0,0 @@
-GTEST()
-
-INCLUDE(${ARCADIA_ROOT}/library/cpp/yt/ya_cpp.make.inc)
-
-PEERDIR(
-    library/cpp/testing/gtest
-    library/cpp/yt/backtrace
-    library/cpp/yt/backtrace/cursors/interop
-    library/cpp/yt/backtrace/cursors/frame_pointer
-    library/cpp/yt/backtrace/cursors/libunwind
-    library/cpp/yt/memory
-)
-
-IF (BUILD_TYPE == "DEBUG" OR BUILD_TYPE == "PROFILE")
-    SRCS(
-        backtrace_ut.cpp
-    )
-ENDIF()
-
-END()
diff --git a/library/cpp/yt/backtrace/ya.make b/library/cpp/yt/backtrace/ya.make
deleted file mode 100644
index d294082e06a..00000000000
--- a/library/cpp/yt/backtrace/ya.make
+++ /dev/null
@@ -1,44 +0,0 @@
-LIBRARY()
-
-INCLUDE(${ARCADIA_ROOT}/library/cpp/yt/ya_cpp.make.inc)
-
-SRCS(
-    backtrace.cpp
-)
-
-IF (OS_WINDOWS)
-    SRCS(
-        symbolizers/dummy/dummy_symbolizer.cpp
-    )
-ELSE()
-    SRCS(
-        symbolizers/dynload/dynload_symbolizer.cpp
-    )
-ENDIF()
-
-PEERDIR(
-    library/cpp/yt/string
-)
-
-END()
-
-RECURSE(
-    cursors/dummy
-    cursors/frame_pointer
-)
-
-IF (NOT OS_WINDOWS)
-    RECURSE(
-        cursors/libunwind
-    )
-ENDIF()
-
-IF (OS_LINUX)
-    RECURSE(
-        symbolizers/dwarf
-    )
-
-    RECURSE_FOR_TESTS(
-        unittests
-    )
-ENDIF()