intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

20 files changed, 3532 insertions, 0 deletions

diff --git a/build/conf/compilers/gnu_compiler.conf b/build/conf/compilers/gnu_compiler.conf
new file mode 100644
index 0000000000..373be5bedd
--- /dev/null
+++ b/build/conf/compilers/gnu_compiler.conf
@@ -0,0 +1,470 @@
+_C_DEFINES_ANDROID=
+_C_DEFINES_ANDROID_OTHERWISE=
+when ($OS_ANDROID == "yes") {
+    _C_DEFINES_ANDROID=-DANDROID_FAKEID=$ANDROID_FAKEID
+}
+otherwise {
+    # There is no usable _FILE_OFFSET_BITS=64 support in Androids until API 21. And it's incomplete until at least API 24.
+    # https://android.googlesource.com/platform/bionic/+/master/docs/32-bit-abi.md
+    # Arcadia have API 16 for 32-bit Androids.
+    _C_DEFINES_ANDROID_OTHERWISE=-D_FILE_OFFSET_BITS=64
+}
+
+_C_DEFINES_GNU_SOURCE=
+when ($OS_LINUX == "yes" || $OS_ANDROID == "yes" || $OS_CYGWIN == "yes") {
+    _C_DEFINES_GNU_SOURCE=-D_GNU_SOURCE
+}
+
+_C_DEFINES_CLANG_LINUX_X86_64=
+when ($CLANG == "yes" && $OS_LINUX == "yes" && $ARCH_X86_64 == "yes") {
+    _C_DEFINES_CLANG_LINUX_X86_64=-D_YNDX_LIBUNWIND_ENABLE_EXCEPTION_BACKTRACE
+}
+
+_C_DEFINES_IOS=
+when ($OS_IOS == "yes") {
+    _C_DEFINES_IOS=-D_XOPEN_SOURCE -D_DARWIN_C_SOURCE
+}
+
+_C_DEFINES_WITH_VALGRIND=
+when ($WITH_VALGRIND == "yes") {
+    _C_DEFINES_WITH_VALGRIND=-DWITH_VALGRIND=1
+}
+
+C_DEFINES =-DFAKEID=$CPP_FAKEID
+C_DEFINES+=$_C_DEFINES_ANDROID
+C_DEFINES+=\
+-DARCADIA_ROOT=${ARCADIA_ROOT} \
+-DARCADIA_BUILD_ROOT=${ARCADIA_BUILD_ROOT} \
+-D_THREAD_SAFE \
+-D_PTHREADS \
+-D_REENTRANT \
+-D_LIBCPP_ENABLE_CXX17_REMOVED_FEATURES \
+-D_LARGEFILE_SOURCE \
+-D__STDC_CONSTANT_MACROS \
+-D__STDC_FORMAT_MACROS
+C_DEFINES+=$_C_DEFINES_ANDROID_OTHERWISE
+C_DEFINES+=$_C_DEFINES_GNU_SOURCE
+C_DEFINES+=$_C_DEFINES_CLANG_LINUX_X86_64
+C_DEFINES+=$_C_DEFINES_IOS
+C_DEFINES+=$_C_DEFINES_WITH_VALGRIND
+C_DEFINES+=$_C_DEFINES_NDEBUG
+
+_C_FOPTIONS_INIT_ARRAY=
+when ($CLANG == "yes" && $OS_LINUX == "yes") {
+    # Use .init_array instead of .ctors (default for old clang versions)
+    # See: https://maskray.me/blog/2021-11-07-init-ctors-init-array
+    _C_FOPTIONS_INIT_ARRAY=-fuse-init-array
+}
+
+_C_FOPTIONS_COLOR=
+_C_FOPTIONS_ALIGNED_ALLOCATION=
+when ($CLANG == "yes") {
+    # Set up output colorization
+    _C_FOPTIONS_COLOR=-fcolor-diagnostics
+    # Enable aligned allocation
+    _C_FOPTIONS_ALIGNED_ALLOCATION=-faligned-allocation
+}
+elsewhen ($GCC == "yes") {
+    # Set up output colorization
+    _C_FOPTIONS_COLOR=-fdiagnostics-color=always
+    # It looks like there is no way to enable aligned allocation in gcc
+}
+
+_C_FOPTIONS_MAPSMOBI_ARM=
+when ($OS_IOS == "yes") {
+    when ($MAPSMOBI_BUILD_TARGET == "yes" && $ARCH_ARM == "yes") {
+        _C_FOPTIONS_MAPSMOBI_ARM=-fembed-bitcode
+    }
+}
+
+_C_WARNINGS_CLANG=
+_CXX_WARNINGS_CLANG=
+when ($CLANG == "yes") {
+
+    _CXX_WARNINGS_CLANG=\
+-Wimport-preprocessor-directive-pedantic \
+-Wno-undefined-var-template \
+-Wno-return-std-move \
+-Wno-address-of-packed-member \
+-Wno-defaulted-function-deleted \
+-Wno-pessimizing-move \
+-Wno-range-loop-construct \
+-Wno-deprecated-anon-enum-enum-conversion \
+-Wno-deprecated-enum-enum-conversion \
+-Wno-deprecated-enum-float-conversion \
+-Wno-ambiguous-reversed-operator \
+-Wno-deprecated-volatile
+
+# -Wno-unknown-warning-option
+# For nvcc to accept the above.
+    _C_WARNINGS_CLANG=\
+-Wno-implicit-const-int-float-conversion \
+-Wno-unknown-warning-option
+
+}
+
+_C_FOPTIONS_GCC=
+when ($GCC == "yes") {
+    _C_FOPTIONS_GCC=-fno-delete-null-pointer-checks -fabi-version=8
+}
+
+_C_FOPTIONS_IOS=
+when ($OS_IOS != "yes") {
+    # Split all functions and data into separate sections for DCE and ICF linker passes
+    # NOTE: iOS build uses -fembed-bitcode which conflicts with -ffunction-sections (only relevant for ELF targets)
+    _C_FOPTIONS_IOS=-ffunction-sections -fdata-sections
+}
+
+_C_FOPTIONS_DEBUG=
+when ($_BUILD_DEBUG == "yes") {
+    _C_FOPTIONS_DEBUG=$FSTACK
+}
+
+_C_FLAGS_RELEASE=
+_C_FOPTIONS_RELEASE=
+_OPTIMIZE_RELEASE=
+when ($_BUILD_RELEASE == "yes") {
+    _C_FLAGS_RELEASE=$OPTIMIZE
+    when ($_BUILD_SIZE_OPTIMIZED == "yes") {
+        # -Oz is clang's more size-aggressive version of -Os
+        # For ARM specifically, clang -Oz is on par with gcc -Os:
+        # https://github.com/android/ndk/issues/133#issuecomment-365763507
+        when($CLANG == "yes") {
+            _OPTIMIZE_RELEASE=-Oz
+        }
+        otherwise {
+            _OPTIMIZE_RELEASE=-Os
+        }
+
+        # Generate sections with address significance tables for ICF linker pass
+        when($CLANG == "yes") {
+            _C_FOPTIONS_RELEASE=-faddrsig
+        }
+    }
+    otherwise {
+        _OPTIMIZE_RELEASE=-O3
+    }
+}
+
+_C_FOPTIONS_PROFILER=
+when ($_BUILD_PROFILER_TYPE != "") {
+    when ($_BUILD_PROFILER_TYPE in ["generic", "gprof"]) {
+        _C_FOPTIONS_PROFILER=-fno-omit-frame-pointer
+    }
+}
+
+_C_FOPTIONS =
+
+# Enable C++ exceptions (and allow them to be throw through pure C code)
+_C_FOPTIONS+=-fexceptions
+
+# Enable standard-conforming behavior and generate duplicate symbol error in case of duplicated global constants.
+# See: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85678#c0
+_C_FOPTIONS+=-fno-common
+
+_C_FOPTIONS+=$_C_FOPTIONS_INIT_ARRAY
+_C_FOPTIONS+=$_C_FOPTIONS_COLOR
+_C_FOPTIONS+=$_C_FOPTIONS_ALIGNED_ALLOCATION
+_C_FOPTIONS+=$_C_FOPTIONS_MAPSMOBI_ARM
+_C_FOPTIONS+=$_C_FOPTIONS_DEBUG
+_C_FOPTIONS+=$_C_FOPTIONS_RELEASE
+_C_FOPTIONS+=$_C_FOPTIONS_PROFILER
+_C_FOPTIONS+=$_C_FOPTIONS_GCC
+_C_FOPTIONS+=$_C_FOPTIONS_IOS
+
+# Enable default warnings subset
+_C_WARNINGS =-Wall -Wextra
+
+# Disable some warnings which will fail compilation at the time
+_C_WARNINGS+=-Wno-parentheses
+
+_C_WARNINGS+=$_C_WARNINGS_CLANG
+
+# Issue a warning if certain overload is hidden due to inheritance
+_CXX_WARNINGS =-Woverloaded-virtual
+
+_CXX_WARNINGS+=$_CXX_WARNINGS_CLANG
+
+_C_FLAGS_ARCH=
+when ($ARCH_I386 == "yes") {
+    _C_FLAGS_ARCH=-m32
+}
+when ($ARCH_X86_64 == "yes") {
+    _C_FLAGS_ARCH=-m64
+}
+
+_C_FLAGS_FAST_DEBUG=
+when ($_BUILD_FAST_DEBUG == "yes") {
+    _C_FLAGS_FAST_DEBUG=-Og
+}
+
+_C_DEFINES_NDEBUG=-UNDEBUG
+when ($_BUILD_WITH_NDEBUG == "yes") {
+    _C_DEFINES_NDEBUG=-DNDEBUG
+}
+
+_C_FLAGS_PROFILER=
+when ($_BUILD_PROFILER_TYPE == "gprof") {
+    _C_FLAGS_PROFILER=-pg
+}
+
+_C_FLAGS=\
+$CL_DEBUG_INFO $CL_DEBUG_INFO_DISABLE_CACHE__NO_UID__ $_C_FLAGS_ARCH_OPT -pipe
+_C_FLAGS+=$_C_FLAGS_ARCH
+_C_FLAGS+=$_C_FLAGS_FAST_DEBUG
+_C_FLAGS+=$_C_FLAGS_RELEASE
+_C_FLAGS+=$_C_FLAGS_PROFILER
+
+_SFDL_FLAGS=-E -C -x c++
+when ($CLANG == "yes") {
+    _SFDL_FLAGS+=-Qunused-arguments
+}
+
+_DEBUG_INFO_FLAGS=-g
+when ($OS_LINUX == "yes") {
+    _DEBUG_INFO_FLAGS=-g -ggnu-pubnames
+}
+
+_CROSS_SUFFIX=.pic
+when ($FORCE_NO_PIC == "yes") {
+    _CROSS_SUFFIX=
+}
+
+C_COMPILER=${quo:C_COMPILER_UNQUOTED}
+OPTIMIZE=$_OPTIMIZE_RELEASE
+FSTACK=-fstack-protector
+DUMP_DEPS=
+GCC_PREPROCESSOR_OPTS=$DUMP_DEPS $C_DEFINES
+C_WARNING_OPTS=$_C_WARNINGS
+CXX_WARNING_OPTS=$_CXX_WARNINGS
+
+# PIE is only valid for executables, while PIC implies a shared library
+# `-pie` with a shared library is either ignored or fails to link
+when ($PIC == "yes") {
+    CFLAGS+=-fPIC
+    LDFLAGS+=-fPIC
+}
+elsewhen ($PIE == "yes") {
+    CFLAGS+=-fPIE
+    LDFLAGS+=-fPIE -pie
+}
+
+CFLAGS+=$_C_FLAGS $DEBUG_INFO_FLAGS $_C_FOPTIONS $C_WARNING_OPTS $GCC_PREPROCESSOR_OPTS $USER_CFLAGS $USER_CFLAGS_GLOBAL
+CXXFLAGS+=$CFLAGS $_CXX_STD $CXX_WARNING_OPTS $USER_CXXFLAGS $USER_CXXFLAGS_GLOBAL
+CONLYFLAGS+=$USER_CONLYFLAGS $USER_CONLYFLAGS_GLOBAL
+CXX_COMPILER=${quo:CXX_COMPILER_UNQUOTED}
+NOGCCSTACKCHECK=yes
+SFDL_FLAG=$_SFDL_FLAGS -o $SFDL_TMP_OUT
+WERROR_FLAG=-Werror
+DEBUG_INFO_FLAGS=$_DEBUG_INFO_FLAGS
+
+when ($NO_WSHADOW == "yes") {
+    C_WARNING_OPTS += -Wno-shadow
+}
+when ($NO_COMPILER_WARNINGS == "yes") {
+    C_WARNING_OPTS = -w
+    CXX_WARNING_OPTS = -Wno-everything
+}
+when ($NO_OPTIMIZE == "yes") {
+    OPTIMIZE = -O0
+}
+when ($SAVE_TEMPS ==  "yes") {
+    CXXFLAGS += -save-temps
+}
+when ($NOGCCSTACKCHECK != "yes") {
+    FSTACK += -fstack-check
+}
+
+# _C_DEBUG_LIGHT=-fdebug-prefix-map=${ARCADIA_BUILD_ROOT}=/-B
+# _C_DEBUG_LIGHT_CL=$_C_DEBUG_LIGHT -Xclang -fdebug-compilation-dir -Xclang /tmp
+# _C_DEBUG=$_C_DEBUG_LIGHT -fdebug-prefix-map=${ARCADIA_ROOT}=/-S -fdebug-prefix-map=$(TOOL_ROOT)=/-T
+# _C_DEBUG_CL=$_C_DEBUG -Xclang -fdebug-compilation-dir -Xclang /tmp
+# _YASM_DEBUG_LIGHT=--replace=${ARCADIA_BUILD_ROOT}=/-B
+# _YASM_DEBUG=$_YASM_DEBUG_LIGHT --replace=${ARCADIA_ROOT}=/-S --replace=$(TOOL_ROOT)=/-T
+# when ($FORCE_CONSISTENT_DEBUG == "yes") {
+#     when ($CLANG == "yes") {
+#         CL_DEBUG_INFO=$_C_DEBUG_CL
+#     }
+#     otherwise {
+#         CL_DEBUG_INFO=$_C_DEBUG
+#     }
+#     YASM_DEBUG_INFO=$_YASM_DEBUG
+# }
+# elsewhen ($CONSISTENT_DEBUG == "yes") {
+#     when ($CLANG == "yes") {
+#         CL_DEBUG_INFO_DISABLE_CACHE__NO_UID__=$_C_DEBUG_CL
+#     }
+#     otherwise {
+#         CL_DEBUG_INFO_DISABLE_CACHE__NO_UID__=$_C_DEBUG
+#     }
+#     YASM_DEBUG_INFO_DISABLE_CACHE__NO_UID__=$_YASM_DEBUG
+# }
+# elsewhen ($CONSISTENT_DEBUG_LIGHT == "yes") {
+#     when ($CLANG == "yes") {
+#         CL_DEBUG_INFO_DISABLE_CACHE__NO_UID__=$_C_DEBUG_LIGHT_CL
+#     }
+#     otherwise {
+#         CL_DEBUG_INFO_DISABLE_CACHE__NO_UID__=$_C_DEBUG_LIGHT
+#     }
+#     YASM_DEBUG_INFO_DISABLE_CACHE__NO_UID__=$_YASM_DEBUG_LIGHT
+# }
+#
+# _C_BUILTINS=-Wno-builtin-macro-redefined -D__DATE__="\"""Sep 31 2019""\"" -D__TIME__=\"00:00:00\"
+# when ($CLANG == "yes" && $_TC_VERSION_AT_LEAST_10 || $GCC == "yes" && $_TC_VERSION_AT_LEAST_8 == "yes") {
+#     # XXX does not support non-normalized paths
+#     _C_BUILTINS+=-fmacro-prefix-map=${ARCADIA_BUILD_ROOT}/= -fmacro-prefix-map=${ARCADIA_ROOT}/= -fmacro-prefix-map=$(TOOL_ROOT)/=
+# }
+# otherwise {
+#     # XXX this macro substitution breaks __FILE__ in included sources
+#     _C_BUILTINS+=-D__FILE__=\"${input;qe;rootrel:SRC}\"
+# }
+#
+# when ($FORCE_CONSISTENT_BUILD == "yes") {
+#     CL_MACRO_INFO=$_C_BUILTINS
+# }
+# elsewhen ($CONSISTENT_BUILD == "yes") {
+#     CL_MACRO_INFO_DISABLE_CACHE__NO_UID__=$_C_BUILTINS
+# }
+
+when ($FORCE_CONSISTENT_DEBUG == "yes") {
+    when ($CLANG == "yes") {
+        CL_DEBUG_INFO=-fdebug-prefix-map=${ARCADIA_BUILD_ROOT}=/-B -fdebug-prefix-map=${ARCADIA_ROOT}=/-S -fdebug-prefix-map=$(TOOL_ROOT)=/-T -Xclang -fdebug-compilation-dir -Xclang /tmp
+    }
+    otherwise {
+        CL_DEBUG_INFO=-fdebug-prefix-map=${ARCADIA_BUILD_ROOT}=/-B -fdebug-prefix-map=${ARCADIA_ROOT}=/-S -fdebug-prefix-map=$(TOOL_ROOT)=/-T
+    }
+    YASM_DEBUG_INFO=--replace=${ARCADIA_BUILD_ROOT}=/-B --replace=${ARCADIA_ROOT}=/-S --replace=$(TOOL_ROOT)=/-T
+}
+elsewhen ($CONSISTENT_DEBUG == "yes") {
+    when ($CLANG == "yes") {
+        CL_DEBUG_INFO_DISABLE_CACHE__NO_UID__=-fdebug-prefix-map=${ARCADIA_BUILD_ROOT}=/-B -fdebug-prefix-map=${ARCADIA_ROOT}=/-S -fdebug-prefix-map=$(TOOL_ROOT)=/-T -Xclang -fdebug-compilation-dir -Xclang /tmp
+    }
+    otherwise {
+        CL_DEBUG_INFO_DISABLE_CACHE__NO_UID__=-fdebug-prefix-map=${ARCADIA_BUILD_ROOT}=/-B -fdebug-prefix-map=${ARCADIA_ROOT}=/-S -fdebug-prefix-map=$(TOOL_ROOT)=/-T
+    }
+    YASM_DEBUG_INFO_DISABLE_CACHE__NO_UID__=--replace=${ARCADIA_BUILD_ROOT}=/-B --replace=${ARCADIA_ROOT}=/-S --replace=$(TOOL_ROOT)=/-T
+}
+elsewhen ($CONSISTENT_DEBUG_LIGHT == "yes") {
+    when ($CLANG == "yes") {
+        CL_DEBUG_INFO_DISABLE_CACHE__NO_UID__=-fdebug-prefix-map=${ARCADIA_BUILD_ROOT}=/-B -Xclang -fdebug-compilation-dir -Xclang /tmp
+    }
+    otherwise {
+        CL_DEBUG_INFO_DISABLE_CACHE__NO_UID__=-fdebug-prefix-map=${ARCADIA_BUILD_ROOT}=/-B
+    }
+    YASM_DEBUG_INFO_DISABLE_CACHE__NO_UID__=--replace=${ARCADIA_BUILD_ROOT}=/-B
+}
+
+when ($FORCE_CONSISTENT_BUILD == "yes") {
+    CL_MACRO_INFO=-Wno-builtin-macro-redefined -D__DATE__=\""Sep 31 2019\"" -D__TIME__=\"00:00:00\" -fmacro-prefix-map=${ARCADIA_BUILD_ROOT}/= -fmacro-prefix-map=${ARCADIA_ROOT}/= -fmacro-prefix-map=$(TOOL_ROOT)/=
+}
+elsewhen ($CONSISTENT_BUILD == "yes") {
+    CL_MACRO_INFO_DISABLE_CACHE__NO_UID__=-Wno-builtin-macro-redefined -D__DATE__=\""Sep 31 2019\"" -D__TIME__=\"00:00:00\" -fmacro-prefix-map=${ARCADIA_BUILD_ROOT}/= -fmacro-prefix-map=${ARCADIA_ROOT}/= -fmacro-prefix-map=$(TOOL_ROOT)/=
+}
+
+_CFLAGS_ARCH_I386=
+when ($ARCH_I386 == "yes" && $ARCH_I686 != "yes") {
+    _CFLAGS_ARCH_I386=-march=pentiumpro -mtune=pentiumpro
+}
+
+CFLAGS+=$_CFLAGS_ARCH_I386
+
+BC_CFLAGS+=$CFLAGS
+BC_CXXFLAGS+=$CXXFLAGS
+C_DEFINES+=-D__LONG_LONG_SUPPORTED
+
+OBJ_CROSS_SUF=$OBJ_SUF$_CROSS_SUFFIX
+OBJECT_SUF=$OBJ_SUF$_CROSS_SUFFIX.o
+GCC_COMPILE_FLAGS=$EXTRA_C_FLAGS -c -o $_COMPILE_OUTPUTS ${pre=-I:_C__INCLUDE}
+EXTRA_COVERAGE_OUTPUT=${output;noauto;hide;suf=${OBJECT_SUF}.gcno:SRC}
+CLANG_TIDY_OUTPUT_FILE=${output;noauto;suf=${OBJECT_SUF}.tidyjson:SRC}
+YNDEXER_OUTPUT_FILE=${output;noauto;suf=${OBJECT_SUF}.ydx.pb2:SRC}
+
+when ($DUMP_COMPILER_DEPS == "yes") {
+    DUMP_DEPS=-MD ${output;hide;noauto;suf=${OBJ_SUF}.o.d:SRC}
+}
+elsewhen ($DUMP_COMPILER_DEPS_FAST == "yes") {
+    DUMP_DEPS=-E -M -MF ${output;noauto;suf=${OBJ_SUF}.o.d:SRC}
+}
+
+_COMPILER_TIME_TRACE_GRANULARITY=500
+when ($TIME_TRACE_GRANULARITY && $TIME_TRACE_GRANULARITY != "") {
+    _COMPILER_TIME_TRACE_GRANULARITY=$TIME_TRACE_GRANULARITY
+}
+
+_COMPILER_TIME_TRACE_FLAGS=
+_COMPILER_TIME_TRACE_POSTPROCESS=
+when (($TIME_TRACE == "yes" || $COMPILER_TIME_TRACE == "yes") && $CLANG == "yes" && $_TC_VERSION_AT_LEAST_9 == "yes") {
+    _COMPILER_TIME_TRACE_FLAGS=-ftime-trace -ftime-trace-granularity=$_COMPILER_TIME_TRACE_GRANULARITY
+    _COMPILER_TIME_TRACE_POSTPROCESS=$YMAKE_PYTHON ${input:"build/scripts/find_time_trace.py"} $_COMPILE_OUTPUTS $_COMPILE_TIME_TRACE_OUTPUTS
+}
+
+_C_CPP_KV_STYLE=${requirements;hide:CC_REQUIREMENTS} ${hide;kv:"p CC"} ${hide;kv:"pc green"}
+_CPP_ARGS=\
+$CLANG_TIDY_ARGS \
+$YNDEXER_ARGS \
+$CXX_COMPILER \
+$C_FLAGS_PLATFORM \
+$GCC_COMPILE_FLAGS \
+$CXXFLAGS \
+$CL_MACRO_INFO \
+$CL_MACRO_INFO_DISABLE_CACHE__NO_UID__ \
+$_COMPILER_TIME_TRACE_FLAGS \
+$EXTRA_OUTPUT \
+$SRCFLAGS \
+$_LANG_CFLAGS_VALUE \
+${input:SRC} \
+$TOOLCHAIN_ENV \
+$YNDEXER_OUTPUT \
+&& $_COMPILER_TIME_TRACE_POSTPROCESS \
+$_C_CPP_KV_STYLE
+
+_C_ARGS=\
+$CLANG_TIDY_ARGS \
+$YNDEXER_ARGS \
+$C_COMPILER \
+$C_FLAGS_PLATFORM \
+$GCC_COMPILE_FLAGS \
+$CFLAGS \
+$CL_MACRO_INFO \
+$CL_MACRO_INFO_DISABLE_CACHE__NO_UID__ \
+$_COMPILER_TIME_TRACE_FLAGS \
+$CONLYFLAGS \
+$EXTRA_OUTPUT \
+$SRCFLAGS \
+${input:SRC} \
+$TOOLCHAIN_ENV \
+$YNDEXER_OUTPUT \
+$_C_CPP_KV_STYLE
+
+### _SRC_C_NODEPS_CMD is obtained from _C_ARGS by filtering the following elements:
+### ${input:SRC}
+### $CL_MACRO_INFO
+### $CL_MACRO_INFO_DISABLE_CACHE__NO_UID__
+### $CLANG_TIDY_ARGS
+### $EXTRA_OUTPUT
+### $EXTRA_COVERAGE_OUTPUT
+### $SRCFLAGS
+### $YNDEXER_ARGS
+### $YNDEXER_OUTPUT
+###
+### $GCC_COMPILE_FLAGS is substituted for $EXTRA_C_FLAGS -c -o ${OUTFILE} ${SRC} ${pre=-I:INC}
+_SRC_C_NODEPS_CMD=\
+$C_COMPILER \
+$C_FLAGS_PLATFORM \
+$EXTRA_C_FLAGS -c -o ${OUTFILE} ${SRC} ${pre=-I:INC} \
+$CFLAGS \
+$CONLYFLAGS \
+$TOOLCHAIN_ENV \
+$_C_CPP_KV_STYLE
+
+_SRC_CPP_CMD=$_CPP_ARGS
+_SRC_C_CMD=$_C_ARGS
+_SRC_M_CMD=$SRC_c($SRC $SRCFLAGS)
+_SRC_MASM_CMD=$_EMPTY_CMD
+
+# fuzzing configuration
+when ($CLANG == "yes") {
+    when ($_TC_VERSION_AT_LEAST_12 == "yes") {
+        LIBFUZZER_PATH=contrib/libs/libfuzzer12
+    }
+}
diff --git a/build/conf/compilers/msvc_compiler.conf b/build/conf/compilers/msvc_compiler.conf
new file mode 100644
index 0000000000..6667f35c5c
--- /dev/null
+++ b/build/conf/compilers/msvc_compiler.conf
@@ -0,0 +1,294 @@
+_MSVC_MACRO=_WIN32_WINNT
+_MSVC_WINDOWS7=0x0601
+_MSVC_WINDOWS8=0x0602
+
+_MSVC_WARNS_ENABLED=
+# 'expression' : signed/unsigned mismatch
+_MSVC_WARNS_ENABLED+=/w14018
+# 'class' : class has virtual functions, but destructor is not virtual
+_MSVC_WARNS_ENABLED+=/w14265
+# 'operator' : expression is always false
+_MSVC_WARNS_ENABLED+=/w14296
+# missing type specifier - int assumed
+_MSVC_WARNS_ENABLED+=/w14431
+
+_MSVC_WARNS_AS_ERRORS=
+# 'function' undefined; assuming extern returning int
+_MSVC_WARNS_AS_ERRORS+=/we4013
+
+_MSVC_WARNS_DISABLED=
+# conditional expression is constant
+_MSVC_WARNS_DISABLED+=/wd4127
+# nonstandard extension used : zero-sized array in struct/union
+_MSVC_WARNS_DISABLED+=/wd4200
+# nonstandard extension used : nameless struct/union
+_MSVC_WARNS_DISABLED+=/wd4201
+# elements of array will be default initialized
+_MSVC_WARNS_DISABLED+=/wd4351
+# 'this' : used in base member initializer list
+_MSVC_WARNS_DISABLED+=/wd4355
+# decorated name length exceeded, name was truncated
+_MSVC_WARNS_DISABLED+=/wd4503
+# default constructor could not be generated
+_MSVC_WARNS_DISABLED+=/wd4510
+# copy constructor could not be generated
+_MSVC_WARNS_DISABLED+=/wd4511
+# assignment operator could not be generated
+_MSVC_WARNS_DISABLED+=/wd4512
+# check operator precedence for possible error; use parentheses to clarify precedence
+_MSVC_WARNS_DISABLED+=/wd4554
+# 'object' can never be instantiated - user defined constructor required
+_MSVC_WARNS_DISABLED+=/wd4610
+# assignment within conditional expression
+_MSVC_WARNS_DISABLED+=/wd4706
+# forcing value to bool 'true' or 'false' (performance warning)
+_MSVC_WARNS_DISABLED+=/wd4800
+# The POSIX name for this item is deprecated
+_MSVC_WARNS_DISABLED+=/wd4996
+# function marked as __forceinline not inlined
+_MSVC_WARNS_DISABLED+=/wd4714
+# 'TAtomic' : top-level volatile in cast is ignored
+_MSVC_WARNS_DISABLED+=/wd4197
+# 'initializing' : conversion from 'int' to 'ui32', signed/unsigned mismatch
+_MSVC_WARNS_DISABLED+=/wd4245
+# 'ystd::function<void (uint8_t *)>': structure was padded due to alignment specifier
+_MSVC_WARNS_DISABLED+=/wd4324
+# 'register' is no longer a supported storage class
+_MSVC_WARNS_DISABLED+=/wd5033
+
+_C_WARNINGS_CLANG_CL=
+_CXX_WARNINGS_CLANG_CL=
+_CXX_WARNINGS_CLANG_CL_2019=
+_CXX_WARNINGS_CLANG_CL_2019_IDE_MSVS=
+when ($CLANG_CL == "yes") {
+    _C_WARNINGS_CLANG_CL=\
+-Wno-absolute-value \
+-Wno-bitwise-op-parentheses \
+-Wno-dll-attribute-on-redeclaration \
+-Wno-extern-initializer \
+-Wno-format \
+-Wno-ignored-pragma-optimize \
+-Wno-inconsistent-dllimport \
+-Wno-int-conversion \
+-Wno-int-to-void-pointer-cast \
+-Wno-invalid-noreturn \
+-Wno-logical-op-parentheses \
+-Wno-macro-redefined \
+-Wno-parentheses \
+-Wno-pragma-pack \
+-Wno-tautological-constant-out-of-range-compare \
+-Wno-unknown-argument \
+-Wno-unknown-warning-option
+
+    _CXX_WARNINGS_CLANG_CL=\
+-Woverloaded-virtual \
+-Wno-attributes
+    # IGNIETFERRO-722 needed for contrib
+    _CXX_WARNINGS_CLANG_CL+=-Wno-register
+
+    _CXX_WARNINGS_CLANG_CL+=\
+-Wimport-preprocessor-directive-pedantic \
+-Wno-undefined-var-template
+
+    when ($_TC_VERSION_AT_LEAST_2019 == "yes") {
+        _CXX_WARNINGS_CLANG_CL_2019=\
+-Wno-deprecated-volatile \
+-Wno-deprecated-anon-enum-enum-conversion \
+-Wno-defaulted-function-deleted \
+-Wno-deprecated-enum-enum-conversion \
+-Wno-ambiguous-reversed-operator \
+-Wno-deprecated-enum-float-conversion \
+-Wno-pointer-to-int-cast
+    }
+
+    when ($IDE_MSVS == "yes") {
+        _CXX_WARNINGS_CLANG_CL_2019_IDE_MSVS=-Wno-unused-command-line-argument
+    }
+}
+
+_C_WARNINGS =$_MSVC_WARNS_AS_ERRORS
+_C_WARNINGS+=$_MSVC_WARNS_ENABLED
+_C_WARNINGS+=$_MSVC_WARNS_DISABLED
+_C_WARNINGS+=$_C_WARNINGS_CLANG_CL
+
+_CXX_WARNINGS =
+_CXX_WARNINGS+=$_CXX_WARNINGS_CLANG_CL
+_CXX_WARNINGS+=$_CXX_WARNINGS_CLANG_CL_2019
+_CXX_WARNINGS+=$_CXX_WARNINGS_CLANG_CL_2019_IDE_MSVS
+
+_WINAPI_UNICODE=no
+
+_DEFINES_ARCH=
+when ($ARCH_X86_64 == "yes") {
+    _DEFINES_ARCH=/D_WIN64 /DWIN64
+}
+elsewhen ($ARCH_ARMV7 == "yes") {
+    _DEFINES_ARCH=/D_ARM_WINAPI_PARTITION_DESKTOP_SDK_AVAILABLE /D__arm__
+}
+
+_DEFINES_WIN32_WINNT=/D$_MSVC_MACRO=$_MSVC_WINDOWS7
+
+when ($_WINAPI_UNICODE == "yes") {
+    _DEFINES_UNICODE=/DUNICODE /D_UNICODE
+}
+otherwise {
+    _DEFINES_UNICODE=/D_MBCS
+}
+
+_C_DEFINES=\
+/DARCADIA_ROOT=${ARCADIA_ROOT} \
+/DARCADIA_BUILD_ROOT=${ARCADIA_BUILD_ROOT} \
+/DFAKEID=$CPP_FAKEID \
+/DWIN32 \
+/D_WIN32 \
+/D_WINDOWS \
+/D_CRT_SECURE_NO_WARNINGS \
+/D_CRT_NONSTDC_NO_WARNINGS \
+/D_USE_MATH_DEFINES \
+/D__STDC_CONSTANT_MACROS \
+/D__STDC_FORMAT_MACROS \
+/D_USING_V110_SDK71_ \
+/D_LIBCPP_ENABLE_CXX17_REMOVED_FEATURES \
+/DNOMINMAX \
+/DWIN32_LEAN_AND_MEAN
+
+_C_DEFINES+=$_DEFINES_ARCH
+_C_DEFINES+=$_DEFINES_WIN32_WINNT
+_C_DEFINES+=$_DEFINES_UNICODE
+
+C_DEFINES+=$_C_DEFINES
+
+_MSVC_FLAGS_CLANG=
+_MSVC_FLAGS_CLANG_NO_WARNINGS=
+_MSVC_FLAGS_CLANG_ARCH=
+_MSVC_FLAGS_CLANG_EQ_2019=
+when ($CLANG_CL == "yes") {
+    # -fcase-insensitive-paths
+    # Allow <windows.h> to be included via <Windows.h> in case-sensitive file-systems.
+    #
+    # -fno-common
+    # Enable standard-conforming behavior and generate duplicate symbol error in case of duplicated global constants.
+    # See: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85678#c0
+    _MSVC_FLAGS_CLANG=-fcase-insensitive-paths -fno-common
+    when ($ARCH_X86_64 == "yes") {
+        _MSVC_FLAGS_CLANG_ARCH=-m64
+    }
+    elsewhen ($ARCH_I386 == "yes") {
+        _MSVC_FLAGS_CLANG_ARCH=-m32
+    }
+    otherwise {
+        _MSVC_FLAGS_CLANG_ARCH=
+    }
+
+    # Some warnings are getting triggered even when NO_COMPILER_WARNINGS is enabled
+    _MSVC_FLAGS_CLANG_NO_WARNINGS=-Wno-c++11-narrowing -Wno-register
+
+    when ($_TC_VERSION_EXACTLY_2019 == "yes") {
+        # heretic: на момент коммита в нашей конфигурации указано, что тулчейн clang11-windows - аналог msvc 2019
+        # https://a.yandex-team.ru/arc/trunk/arcadia/build/ya.conf.json?rev=r7910792#L2185
+        # сам clang11 по дефолту представляется msvc2017 (#define _MSC_VER 1911
+        # https://a.yandex-team.ru/arc/trunk/arcadia/contrib/libs/clang11/lib/Driver/ToolChains/MSVC.cpp?rev=r7913127#L1352
+        # вручную заставляем его представляться msvc2019 (#define _MSC_VER 1921)
+        # значение версии взято вот отсюда:
+        # https://a.yandex-team.ru/arc/trunk/arcadia/contrib/libs/llvm11/include/llvm/Support/Compiler.h?blame=true&rev=r7913127#L89
+        _MSVC_FLAGS_CLANG_EQ_2019=-fms-compatibility-version=19.21
+    }
+}
+
+_MSVC_FLAGS=/nologo /Zm500 /GR /bigobj /FC /EHs /errorReport:prompt $MSVC_INLINE_FLAG /utf-8
+# enable standard conforming mode
+_MSVC_FLAGS+=/permissive-
+_MSVC_FLAGS+=$_MSVC_FLAGS_ARCH_OPT
+_MSVC_FLAGS+=$_MSVC_FLAGS_CLANG
+_MSVC_FLAGS+=$_MSVC_FLAGS_CLANG_ARCH
+_MSVC_FLAGS+=$_MSVC_FLAGS_CLANG_NO_WARNINGS
+_MSVC_FLAGS+=$_MSVC_FLAGS_CLANG_EQ_2019
+_MSVC_FLAGS+=$_MSVC_FLAGS_INCLUDE
+
+MSVC_INLINE_OPTIMIZED=yes
+when ($MSVC_INLINE_OPTIMIZED == "yes") {
+    MSVC_INLINE_FLAG=/Zc:inline
+}
+when ($MSVC_INLINE_OPTIMIZED == "no") {
+    MSVC_INLINE_FLAG=/Zc:inline-
+}
+
+# Use builtin offsetof implementation
+# instead of a crutcy macro defined in ucrt/stddef.h.
+# The latter can not be used in constexpr statements.
+_CXX_DEFINES=/D_CRT_USE_BUILTIN_OFFSETOF
+
+_FLAGS_C_ONLY=
+
+# Provide proper __cplusplus value
+# https://devblogs.microsoft.com/cppblog/msvc-now-correctly-reports-__cplusplus/
+_CXX_FLAGS=/Zc:__cplusplus
+
+_FLAGS_MSVS_ONLY=
+DEBUG_INFO_FLAGS=/Z7
+when ($IDE_MSVS == "yes") {
+    when ($CLANG_CL != "yes") {
+        _FLAGS_MSVS_ONLY=/FD /MP
+    }
+    DEBUG_INFO_FLAGS=/Zi /FS
+}
+
+C_WARNING_OPTS=$_C_WARNINGS
+CXX_WARNING_OPTS=$_CXX_WARNINGS
+
+# https://msdn.microsoft.com/en-us/library/abx4dbyh.aspx
+when ($DLL_RUNTIME == "yes") {
+    _FLAGS_DEBUG_RUNTIME=/MDd
+    _FLAGS_RELEASE_RUNTIME=/MD
+}
+otherwise {
+    _FLAGS_DEBUG_RUNTIME=/MTd
+    _FLAGS_RELEASE_RUNTIME=/MT
+}
+CFLAGS_DEBUG=/Ob0 /Od /D_DEBUG $_FLAGS_DEBUG_RUNTIME
+CFLAGS_RELEASE=/Ox /Ob2 /Oi /DNDEBUG $_FLAGS_RELEASE_RUNTIME
+
+MASMFLAGS=
+_MASM_IO=/nologo /c /Fo${output;suf=${OBJECT_SUF}:SRC} ${input;msvs_source:SRC}
+when ($ARCH_ARMV7) {
+    _MASM_IO=-o ${output;suf=${OBJECT_SUF}:SRC} ${input;msvs_source:SRC}
+}
+
+OBJ_CROSS_SUF=$OBJ_SUF
+OBJECT_SUF=$OBJ_SUF.obj
+
+CFLAGS+=$_MSVC_FLAGS $_FLAGS_MSVS_ONLY $CFLAGS_PER_TYPE $DEBUG_INFO_FLAGS $C_WARNING_OPTS $C_DEFINES $USER_CFLAGS $USER_CFLAGS_GLOBAL
+CXXFLAGS+=$CFLAGS $_STD_CXX $_CXX_FLAGS $_CXX_DEFINES $CXX_WARNING_OPTS $USER_CXXFLAGS $USER_CXXFLAGS_GLOBAL
+CONLYFLAGS+=$_FLAGS_C_ONLY $USER_CONLYFLAGS $USER_CONLYFLAGS_GLOBAL
+
+BC_CFLAGS+=$CFLAGS
+BC_CXXFLAGS+=$BC_CFLAGS $CXXFLAGS
+
+CFLAGS+=$_CFLAGS_UCRT_VC_INCLUDES
+
+when ($NO_WSHADOW == "yes") {
+    C_WARNING_OPTS+=/wd4456 /wd4457
+}
+when ($NO_COMPILER_WARNINGS == "yes") {
+    C_WARNING_OPTS=/w
+    CXX_WARNING_OPTS=
+}
+when ($NO_OPTIMIZE == "yes") {
+    OPTIMIZE=/Od
+}
+
+SFDL_FLAG=/E /C /P /TP /Fi$SFDL_TMP_OUT
+WERROR_FLAG=/WX
+
+CL_WRAPPER=${YMAKE_PYTHON} ${input:"build/scripts/fix_msvc_output.py"} cl
+ML_WRAPPER=${YMAKE_PYTHON} ${input:"build/scripts/fix_msvc_output.py"} ml
+when ($_UNDER_WINE == "yes") {
+    CL_WRAPPER=
+    ML_WRAPPER=
+}
+
+_SRC_C_NODEPS_CMD=${TOOLCHAIN_ENV} ${CL_WRAPPER} ${C_COMPILER} /c /Fo${OUTFILE} ${SRC} ${EXTRA_C_FLAGS} ${pre=/I :INC} ${CFLAGS} ${requirements;hide:CC_REQUIREMENTS} ${hide;kv:"soe"} ${hide;kv:"p CC"} ${hide;kv:"pc yellow"}
+_SRC_CPP_CMD=${TOOLCHAIN_ENV} ${CL_WRAPPER} ${CXX_COMPILER} /c /Fo$_COMPILE_OUTPUTS ${input;msvs_source:SRC} ${EXTRA_C_FLAGS} ${pre=/I :_C__INCLUDE} ${CXXFLAGS} ${SRCFLAGS} ${_LANG_CFLAGS_VALUE} ${requirements;hide:CC_REQUIREMENTS} ${hide;kv:"soe"} ${hide;kv:"p CC"} ${hide;kv:"pc yellow"}
+_SRC_C_CMD=${TOOLCHAIN_ENV} ${CL_WRAPPER} ${C_COMPILER} /c /Fo$_COMPILE_OUTPUTS ${input;msvs_source:SRC} ${EXTRA_C_FLAGS} ${pre=/I :_C__INCLUDE} ${CFLAGS} ${CONLYFLAGS} ${SRCFLAGS} ${requirements;hide:CC_REQUIREMENTS} ${hide;kv:"soe"} ${hide;kv:"p CC"} ${hide;kv:"pc yellow"}
+_SRC_M_CMD=$_EMPTY_CMD
+_SRC_MASM_CMD=${cwd:ARCADIA_BUILD_ROOT} ${TOOLCHAIN_ENV} ${ML_WRAPPER} ${MASM_COMPILER} ${MASMFLAGS} ${SRCFLAGS} $_MASM_IO ${requirements;hide:CC_REQUIREMENTS} ${kv;hide:"p AS"} ${kv;hide:"pc yellow"}
diff --git a/build/conf/java.ymake.conf b/build/conf/java.ymake.conf
new file mode 100644
index 0000000000..ed85153c78
--- /dev/null
+++ b/build/conf/java.ymake.conf
@@ -0,0 +1,179 @@
+YMAKE_JAVA_MODULES=yes
+JBUILD_JAVA_MODULES=no
+
+macro _INPUT_WITH_FLAG(Flag, IN[]) {
+    .CMD=$_INPUT_WITH_FLAG_IMPL(${pre=$Flag :IN} IN $IN)
+}
+
+macro _INPUT_WITH_FLAG_IMPL(IN{input}[], Args...) {
+    .CMD=$Args ${input;hide:IN}
+}
+
+macro ACCELEO(XSD{input}[], MTL{input}[], MTL_ROOT="${MODDIR}", LANG{input}[], OUT{output}[], OUT_NOAUTO{output}[], OUTPUT_INCLUDES[], DEBUG?"stdout2stderr":"stderr2stdout") {
+    .PEERDIR=build/platform/java/jdk $JDK_RESOURCE_PEERDIR
+    .CMD=${cwd:ARCADIA_BUILD_ROOT} $YMAKE_PYTHON ${input;pre=build/scripts/:DEBUG.py} $JDK_RESOURCE/bin/java -Dfile.encoding=utf8 -classpath ${RUN_JAR_PROG_CP_PRE}${tool:"tools/acceleo"}${RUN_JAR_PROG_CP_SUF} ru.yandex.se.logsng.tool.Cli $_INPUT_WITH_FLAG(--xsd IN $XSD) $_INPUT_WITH_FLAG(--mtl IN $MTL) $_INPUT_WITH_FLAG(--lang IN $LANG) --output-dir $BINDIR --build-root ${ARCADIA_BUILD_ROOT} --source-root ${ARCADIA_ROOT}  --mtl-root $MTL_ROOT ${output_include;hide:OUTPUT_INCLUDES} ${output;hide:OUT} ${output;noauto;hide:OUT_NOAUTO} ${kv;hide:"p JV"} ${kv;hide:"pc light-blue"} ${kv;hide:"show_out"}
+}
+
+### @usage: JAVA_LIBRARY()
+###
+### The module describing java library build.
+###
+### Documentation: https://wiki.yandex-team.ru/yatool/java/
+module JAVA_LIBRARY: JAR_LIBRARY {
+    .ALIASES=REQUIREMENTS=JAVA_REQUIREMENTS
+}
+
+### @usage: JAVA_PROGRAM()
+###
+### The module describing java programs build.
+### Output artifacts: .jar and directory with all the jar to the classpath of the formation.
+###
+### Documentation: https://wiki.yandex-team.ru/yatool/java/
+multimodule JAVA_PROGRAM {
+    module JAR_RUNABLE: _JAR_RUNABLE {
+        .ALLOWED=JAVA_RUNTIME_PEERDIR JAVA_RUNTIME_EXCLUDE
+        # TODO(svidyuk) JAVA_DEPENDENCIES_CONFIGURATION must not be ignored here but there are diagnostics issues in case of ECLUDE in the middle:
+        # * A -> B -> C -> lib-v1.4
+        #    |    |-> DM(lib-v1.1)
+        #    |    |-> EXCLUDE(lib-v1.4)
+        #    |    |-> FORBID_CONFLICT_DM_RECENT = OK
+        #    |-> DM(lib-v1.1)
+        #    |-> FORBID_CONFLICT_DM_RECENT = FAIL (because downgrade from v1.4 to v1.1 is detected before understanding that v1.4 was excuded on the examined path)
+        .IGNORED=RUN_JAVA_PROGRAM JAVA_DEPENDENCIES_CONFIGURATION
+        .ALIASES=JAVA_RUNTIME_PEERDIR=PEERDIR JAVA_RUNTIME_EXCLUDE=EXCLUDE
+        .PEERDIRSELF=JAR_COMPILATION
+
+        SET(MODULE_TYPE JAVA_PROGRAM)
+    }
+    module JAR_COMPILATION: JAR_LIBRARY {
+        .IGNORED=JAVA_RUNTIME_PEERDIR JAVA_RUNTIME_EXCLUDE
+        .ALIASES=JAVA_RUNTIME_PEERDIR=_NOOP_MACRO JAVA_RUNTIME_EXCLUDE=_NOOP_MACRO REQUIREMENTS=JAVA_REQUIREMENTS
+        .FINAL_TARGET=no
+        SET(MODULE_TYPE JAVA_PROGRAM)
+    }
+}
+
+multimodule JUNIT5 {
+    module JAR_TESTABLE: _JAR_TEST {
+        .ALLOWED=YT_SPEC
+        # TODO(svidyuk) JAVA_DEPENDENCIES_CONFIGURATION must not be ignored here but there are diagnostics issues in case of ECLUDE in the middle:
+        # * A -> B -> C -> lib-v1.4
+        #    |    |-> DM(lib-v1.1)
+        #    |    |-> EXCLUDE(lib-v1.4)
+        #    |    |-> FORBID_CONFLICT_DM_RECENT = OK
+        #    |-> DM(lib-v1.1)
+        #    |-> FORBID_CONFLICT_DM_RECENT = FAIL (because downgrade from v1.4 to v1.1 is detected before understanding that v1.4 was excuded on the examined path)
+        .IGNORED=JAVA_SRCS RUN_JAVA_PROGRAM JAVA_DEPENDENCIES_CONFIGURATION
+        .ALIASES=JAVA_TEST_PEERDIR=PEERDIR JAVA_TEST_EXCLUDE=EXCLUDE
+        .PEERDIRSELF=JAR_COMPILATION
+
+        SET(MODULE_TYPE JUNIT5)
+    }
+    module JAR_COMPILATION: JAR_LIBRARY {
+        .ALLOWED=YT_SPEC
+        .ALIASES=JAVA_TEST_PEERDIR=_NOOP_MACRO JAVA_TEST_EXCLUDE=_NOOP_MACRO
+        .FINAL_TARGET=no
+
+        PEERDIR(devtools/junit5-runner build/platform/java/jacoco-agent)
+        SET(MODULE_TYPE JUNIT5)
+    }
+}
+
+multimodule JTEST {
+    module JAR_TESTABLE: _JAR_TEST {
+        .ALLOWED=YT_SPEC
+        # TODO(svidyuk) JAVA_DEPENDENCIES_CONFIGURATION must not be ignored here but there are diagnostics issues in case of ECLUDE in the middle:
+        # * A -> B -> C -> lib-v1.4
+        #    |    |-> DM(lib-v1.1)
+        #    |    |-> EXCLUDE(lib-v1.4)
+        #    |    |-> FORBID_CONFLICT_DM_RECENT = OK
+        #    |-> DM(lib-v1.1)
+        #    |-> FORBID_CONFLICT_DM_RECENT = FAIL (because downgrade from v1.4 to v1.1 is detected before understanding that v1.4 was excuded on the examined path)
+        .IGNORED=JAVA_SRCS RUN_JAVA_PROGRAM JAVA_DEPENDENCIES_CONFIGURATION
+        .ALIASES=JAVA_TEST_PEERDIR=PEERDIR JAVA_TEST_EXCLUDE=EXCLUDE
+        .PEERDIRSELF=JAR_COMPILATION
+
+        SET(MODULE_TYPE JTEST)
+        PEERDIR(devtools/junit-runner)
+        DEPENDENCY_MANAGEMENT(contrib/java/com/google/code/gson/gson/2.8.6 contrib/java/com/beust/jcommander/1.72 contrib/java/junit/junit/4.12)
+    }
+    module JAR_COMPILATION: JAR_LIBRARY {
+        .ALLOWED=YT_SPEC
+        .ALIASES=JAVA_TEST_PEERDIR=_NOOP_MACRO JAVA_TEST_EXCLUDE=_NOOP_MACRO
+        .FINAL_TARGET=no
+
+        SET(MODULE_TYPE JTEST)
+        DEPENDS(contrib/java/org/sonarsource/scanner/cli/sonar-scanner-cli/2.8)
+        PEERDIR(build/platform/java/jacoco-agent)
+    }
+}
+
+multimodule JTEST_FOR {
+    module JAR_TESTABLE: _JAR_TEST {
+        .ALLOWED=YT_SPEC
+        # TODO(svidyuk) JAVA_DEPENDENCIES_CONFIGURATION must not be ignored here but there are diagnostics issues in case of ECLUDE in the middle:
+        # * A -> B -> C -> lib-v1.4
+        #    |    |-> DM(lib-v1.1)
+        #    |    |-> EXCLUDE(lib-v1.4)
+        #    |    |-> FORBID_CONFLICT_DM_RECENT = OK
+        #    |-> DM(lib-v1.1)
+        #    |-> FORBID_CONFLICT_DM_RECENT = FAIL (because downgrade from v1.4 to v1.1 is detected before understanding that v1.4 was excuded on the examined path)
+        .IGNORED=JAVA_SRCS RUN_JAVA_PROGRAM JAVA_DEPENDENCIES_CONFIGURATION
+        .ALIASES=JAVA_TEST_PEERDIR=PEERDIR JAVA_TEST_EXCLUDE=EXCLUDE
+        .PEERDIRSELF=JAR_COMPILATION
+
+        SET(MODULE_TYPE JTEST_FOR)
+        PEERDIR(${UNITTEST_DIR} devtools/junit-runner)
+        DEPENDENCY_MANAGEMENT(contrib/java/com/google/code/gson/gson/2.8.6 contrib/java/com/beust/jcommander/1.72 contrib/java/junit/junit/4.12)
+    }
+    module JAR_COMPILATION: JAR_LIBRARY {
+        .ALLOWED=YT_SPEC
+        .ALIASES=JAVA_TEST_PEERDIR=_NOOP_MACRO JAVA_TEST_EXCLUDE=_NOOP_MACRO
+        .FINAL_TARGET=no
+
+        SET(MODULE_TYPE JTEST_FOR)
+        DEPENDS(contrib/java/org/sonarsource/scanner/cli/sonar-scanner-cli/2.8)
+        PEERDIR(devtools/junit-runner build/platform/java/jacoco-agent ${UNITTEST_DIR})
+    }
+}
+
+multimodule JAVA_CONTRIB_PROGRAM {
+    module JAR_RUNABLE: _JAR_RUNABLE {
+        .IGNORED=JAVA_SRCS RUN_JAR_PROGRAM RUN_JAVA_PROGRAM JAR_RESOURCE SRC_RESOURCE LOCAL_JAR
+        .PEERDIRSELF=JAR_COMPILATION
+
+        SET(MODULE_TYPE JAVA_PROGRAM)
+        ENABLE(DISABLE_SCRIPTGEN)
+    }
+    module JAR_COMPILATION: JAVA_CONTRIB {
+        .ALIASES=JAVA_RUNTIME_PEERDIR=_NOOP_MACRO JAVA_RUNTIME_EXCLUDE=_NOOP_MACRO
+        .FINAL_TARGET=no
+    }
+}
+
+module _DLL_COMPATIBLE_JAVA_LIBRARY: EXTERNAL_JAVA_LIBRARY {
+    SET(DONT_RESOLVE_INCLUDES yes)
+}
+
+### @usage: DLL_JAVA()
+###
+### DLL built using swig for Java. Produces dynamic library and a .jar.
+### Dynamic library is treated the same as in the case of PEERDIR from Java to DLL.
+### .jar goes on the classpath.
+###
+### Documentation: https://wiki.yandex-team.ru/yatool/java/#integracijascpp/pythonsborkojj
+multimodule DLL_JAVA {
+    module JNI_DLL: DLL {
+        .ALIASES=SRCS=_SWIG_LANG_FILTERED_SRCS
+        SET(SWIG_LANG jni_cpp)
+        .FINAL_TARGET=no
+    }
+    module JAR_COMPILATION: _DLL_COMPATIBLE_JAVA_LIBRARY {
+        .ALIASES=SRCS=_SWIG_LANG_FILTERED_SRCS PEERDIR=_NOOP_MACRO
+        .PEERDIRSELF=JNI_DLL
+        SET(SWIG_LANG jni_java)
+        PEERDIR+=build/platform/java/jdk
+        PEERDIR+=$JDK_RESOURCE_PEERDIR
+        .FINAL_TARGET=yes
+    }
+}
diff --git a/build/conf/jbuild.ymake.conf b/build/conf/jbuild.ymake.conf
new file mode 100644
index 0000000000..945a7cc979
--- /dev/null
+++ b/build/conf/jbuild.ymake.conf
@@ -0,0 +1,122 @@
+YMAKE_JAVA_MODULES=no
+JBUILD_JAVA_MODULES=yes
+
+EXTERNAL_JAR_VALUE=
+### @usage: EXTERNAL_JAR(library.jar)
+###
+### Provide an external name for built JAVA_LIBRARY() or JAVA_PROGRAM()
+###
+### Documentation: https://wiki.yandex-team.ru/yatool/java/#ispolzovanievneshnixmavenbibliotek
+macro EXTERNAL_JAR(Args...) {
+    SET_APPEND(EXTERNAL_JAR_VALUE $ARGS_DELIM $Args)
+}
+
+### @usage: JAVA_LIBRARY()
+###
+### The module describing java library build.
+###
+### Documentation: https://wiki.yandex-team.ru/yatool/java/
+module JAVA_LIBRARY: _JAVA_PLACEHOLDER {
+    SET(MODULE_TYPE JAVA_LIBRARY)
+}
+
+### @usage: JAVA_PROGRAM()
+###
+### The module describing java programs build.
+### Output artifacts: .jar and directory with all the jar to the classpath of the formation.
+###
+### Documentation: https://wiki.yandex-team.ru/yatool/java/
+module JAVA_PROGRAM: _JAVA_PLACEHOLDER {
+    .ALIASES=JAVA_RUNTIME_PEERDIR=PEERDIR JAVA_RUNTIME_EXCLUDE=EXCLUDE
+    SET(MODULE_TYPE JAVA_PROGRAM)
+}
+
+### @usage: JUNIT5()
+###
+### Java tests module based on JUnit 5 framework.
+###
+### If requested, build system will scan the source code of the module for the presence of junit tests and run them.
+### Output artifacts: a jar, a directory of exhaust tests(if required run the tests) - test logs, system logs testiranja, temporary files, tests, etc.
+###
+### Documentation: https://wiki.yandex-team.ru/yatool/test/#testynajava
+module JUNIT5: _JAVA_PLACEHOLDER {
+    .ALIASES=JAVA_TEST_PEERDIR=PEERDIR JAVA_TEST_EXCLUDE=EXCLUDE
+    SET(MODULE_TYPE JUNIT5)
+    SET(TEST_RUNNER devtools/junit5-runner)
+    SET(TEST_CLASSPATH_VALUE ${MODDIR} ${TEST_RUNNER})
+    # Used as place to add managed dependencies for test execution and take them into account
+    # during traverses properly.
+    _RUN_JAVA(TOOL ${TEST_RUNNER} OUT fake.out.java_test_cmd)
+
+    PEERDIR(${TEST_RUNNER})
+    PEERDIR(build/platform/java/jacoco-agent)
+    JAVA_TEST()
+}
+
+### @usage: JTEST()
+###
+### Java tests module based on JUnit 4 framework.
+###
+### If requested, build system will scan the source code of the module for the presence of junit tests and run them.
+### Output artifacts: a jar, a directory of exhaust tests(if required run the tests) - test logs, system logs testiranja, temporary files, tests, etc.
+###
+### Documentation: https://wiki.yandex-team.ru/yatool/test/#testynajava
+module JTEST: _JAVA_PLACEHOLDER {
+    .ALLOWED=YT_SPEC
+    .ALIASES=JAVA_TEST_PEERDIR=PEERDIR JAVA_TEST_EXCLUDE=EXCLUDE
+    SET(MODULE_TYPE JTEST)
+    SET(TEST_RUNNER devtools/junit-runner)
+    SET(TEST_CLASSPATH_VALUE ${MODDIR} ${TEST_RUNNER})
+    # Used as place to add managed dependencies for test execution and take them into account
+    # during traverses properly.
+    _RUN_JAVA(TOOL ${TEST_RUNNER} OUT fake.out.java_test_cmd)
+
+    # TODO: if <needs_sonar>
+    DEPENDS(contrib/java/org/sonarsource/scanner/cli/sonar-scanner-cli/2.8)
+    DEPENDS(${TEST_RUNNER})
+    _GHOST_PEERDIR(${TEST_RUNNER})
+    PEERDIR(build/platform/java/jacoco-agent)
+    JAVA_TEST()
+
+    SET_APPEND(_MAKEFILE_INCLUDE_LIKE_DEPS canondata/result.json)
+}
+
+### @usage: JTEST_FOR(ModuleDir)
+###
+### Convinience java tests module based on JUnit 4 framework for specified library or program.
+###
+### In contrast to the JTEST, the build system will scan for the presence of the test sources of the module in ModuleDir . As ModuleDir should contain JAVA_PROGRAM or JAVA_LIBRARY . JTEST_FOR also can have its own source, in this case they will be compiled and added to the classpath of a test run.
+### Output artifacts: a jar, a directory of exhaust tests(if requested tests are run).
+###
+### Documentation: https://wiki.yandex-team.ru/yatool/test/#testynajava
+module JTEST_FOR: JTEST {
+    .ALIASES=JAVA_TEST_PEERDIR=PEERDIR JAVA_TEST_EXCLUDE=EXCLUDE
+    SET(MODULE_TYPE JTEST_FOR)
+    SET(TEST_CLASSPATH_VALUE ${MODDIR} ${TEST_RUNNER} ${UNITTEST_DIR})
+
+    PEERDIR($UNITTEST_DIR)
+    SET(REALPRJNAME jtest)
+    JAVA_TEST()
+}
+
+module JAVA_CONTRIB_PROGRAM: JAVA_CONTRIB {
+    SET(MODULE_TYPE JAVA_PROGRAM)
+    ENABLE(DISABLE_SCRIPTGEN)
+}
+
+### @usage: DLL_JAVA()
+###
+### DLL built using swig for Java. Produces dynamic library and a .jar.
+### Dynamic library is treated the same as in the case of PEERDIR from Java to DLL.
+### .jar goes on the classpath.
+###
+### Documentation: https://wiki.yandex-team.ru/yatool/java/#integracijascpp/pythonsborkojj
+module DLL_JAVA: DLL {
+    .EXTS=.o .obj .jsrc .java .mf
+    .CMD=SWIG_DLL_JAR_CMD
+    PEERDIR(build/platform/java/jdk)
+    PEERDIR+=$JDK_RESOURCE_PEERDIR
+
+    PROPAGATES_MANAGEABLE_PEERS=yes
+    SET(SWIG_LANG java)
+}
diff --git a/build/conf/license.conf b/build/conf/license.conf
new file mode 100644
index 0000000000..0c43ed4c1d
--- /dev/null
+++ b/build/conf/license.conf
@@ -0,0 +1,380 @@
+LICENSE_EXPRESSION_IMPLICIT_OR=yes
+LICENSE_EXPRESSION_IMPLICIT_AND=yes
+LICENSE_EXPRESSION=
+LICENSE_NAMES=
+
+MODULE_LICENSES_RESTRICTIONS=
+MODULE_LICENSES_RESTRICTION_EXCEPTIONS=
+MODULE_LICENSES_RESTRICTION_TYPES=
+DEFAULT_MODULE_LICENSE=YandexUncategorized
+EXPLICIT_LICENSE_PREFIXES=
+
+# List of license properties which can be used to restrict transitive dependencies. There are three variables checked for each
+# property:
+# * LICENSES_<PROP_NAME>_STATIC: list of licenses which propagates this property when linking with code published by one of
+#                                them statically.
+# * LICENSES_<PROP_NAME>_DYNAMIC: list of licenses which propagates this property when linking with code published by one of
+#                                 them dyamically.
+# * LICENSES_<PROP_NAME>: list of licenses which propagates this property regrdless of type of linking with code published by
+#                         one of them. Putting some license into this list is equivalent to putting it into both
+#                         LICENSES_<PROP_NAME>_STATIC and LICENSES_<PROP_NAME>_DYNAMIC lists.
+LICENSE_PROPERTIES= \
+    FORBIDDEN NDA REQUIRE_DISCLOSURE PERMISSIVE REQUIRE_CITATION SERVICE
+
+LICENSES_UNATTRIBUTED= \
+    AFL-2.0 \
+    AML \
+    APSL-1.0 \
+    ASM-BSD-3-Clause \
+    Amazon-SL \
+    Artistic-1.0-Perl \
+    BCL \
+    BSD-3-Clause-Open-MPI \
+    BSD-4-Clause-Shortened \
+    BSLA \
+    Bison-Exception \
+    BouncyCastle-MIT \
+    Brian-Gladman-3-Clause \
+    Bsd-New-Tcpdump \
+    Bsd-Original-Uc-1986 \
+    CC-BY-1.0 \
+    CC-BY-2.0 \
+    CC-BY-2.5 \
+    CC-BY-3.0 \
+    CC-BY-4.0 \
+    CC-BY-NC-1.0 \
+    CC-BY-NC-2.0 \
+    CC-BY-NC-2.5 \
+    CC-BY-NC-3.0 \
+    CC-BY-NC-ND-1.0 \
+    CC-BY-NC-ND-2.0 \
+    CC-BY-NC-ND-2.5 \
+    CC-BY-NC-ND-3.0 \
+    CC-BY-NC-SA-1.0 \
+    CC-BY-NC-SA-2.0 \
+    CC-BY-NC-SA-2.5 \
+    CC-BY-NC-SA-3.0 \
+    CC-BY-ND-1.0 \
+    CC-BY-ND-2.0 \
+    CC-BY-ND-2.5 \
+    CC-BY-ND-3.0 \
+    CC-BY-SA-1.0 \
+    CC-BY-SA-2.0 \
+    CC-BY-SA-2.5 \
+    CC-BY-SA-3.0 \
+    CC-BY-SA-4.0 \
+    CDDL \
+    CECILL-B \
+    Carnegie-Mellon \
+    Carnegie-Mellon-Contributors \
+    DOC \
+    DSO-1.1 \
+    EDL-1.0 \
+    Elastic-License-2.0 \
+    FSFUL \
+    FSFULLR \
+    Fftpack-2004 \
+    GCC-exception-3.1 \
+    GDAL \
+    GFDL-1.1-or-later \
+    GPL-2.0 WITH Classpath-exception-2.0 \
+    GPL-2.0 WITH FOSS-exception \
+    GPL-2.0-only WITH Mysql-Linking-Exception-2018 \
+    GPL-2.0-only WITH Universal-FOSS-exception-1.0 \
+    GPL-2.0-or-later WITH Avisynth-C-Interface-Exception \
+    GPL-2.0-or-later WITH Bison-Exception-2.0 \
+    GPL-2.0-or-later WITH Bison-exception-2.2 \
+    GPL-2.0-or-later WITH C-Interface-Exception \
+    GPL-2.0-or-later WITH Libtool-exception \
+    GPL-2.0-or-later WITH mif-exception \
+    Go-License \
+    Google-Patent-License-Webm \
+    Google-Patent-License-Webrtc \
+    HPND \
+    HPND-sell-variant \
+    HPND-sell-variant \
+    HSQLDB-BSD-3-Clause \
+    Hdf5 \
+    IPL-1.0 \
+    Ibm-Dhcp \
+    Ietf-trust \
+    ImageMagick \
+    Info-Zip \
+    Intel-Confidential \
+    Intel-Material \
+    JAMon-BSD-3-Clause \
+    LGPL-3.0-or-later WITH ZeroMQ-Exception \
+    LPL-1.02 \
+    LicenseRef-scancode-bsd-new-nomod \
+    LicenseRef-scancode-cc-by-2.0-uk \
+    LicenseRef-scancode-cc-devnations-2.0 \
+    LicenseRef-scancode-cc-sampling-1.0 \
+    LicenseRef-scancode-free-unknown \
+    LicenseRef-scancode-generic-cla \
+    LicenseRef-scancode-other-copyleft \
+    LicenseRef-scancode-other-permissive \
+    LicenseRef-scancode-pcre \
+    LicenseRef-scancode-proprietary-license \
+    LicenseRef-scancode-unknown \
+    LicenseRef-scancode-unknown-license-reference \
+    LicenseRef-scancode-warranty-disclaimer \
+    MirOS \
+    Mit-Xfig \
+    Mozilla-GC \
+    Musl-Exception \
+    NAIST-2003 \
+    Nvidia-Gov \
+    Oracle \
+    Oracle-technology \
+    PSF-3.7.2 \
+    Qhull \
+    Quicklz \
+    Red-Hat-Attribution \
+    Ruby \
+    SSPL-1.0 \
+    SZIP \
+    Sendmail \
+    Softsurfer \
+    Stlport-4.5 \
+    Sunpro \
+    TCL \
+    TU-Berlin-1.0 \
+    Unicode-TOU \
+    Universal-FOSS-exception-1.0 \
+    Unknown \
+    Unlicense \
+    Vcalendar \
+    Vim \
+    X11-Adobe-Dec \
+    X11-Hanson \
+    X11-XConsortium-Veillard \
+    Xfree86-1.0 \
+    Xnet \
+    jQuery-MIT
+
+LICENSES_PATCHES_FORBIDDEN= \
+    Unicode
+
+LICENSES_FORBIDDEN= \
+    AGPL-3.0-only \
+    AGPL-3.0-or-later \
+    Artistic-1.0 \
+    ${LICENSES_UNATTRIBUTED}
+
+# Group for proprietary code licenses
+LICENSES_NDA= \
+    Intel-NDA \
+    mimepp \
+    OracleOebs \
+    Sophos-SDK \
+    YandexUncategorized \
+    YandexNDA
+
+# These licenses allow use with opensource code only
+LICENSES_REQUIRE_DISCLOSURE= \
+    CDDL-1.0 \
+    CDDL-1.1 \
+    CECILL-2.0 \
+    CPL-1.0 \
+    EPL-1.0 \
+    EPL-2.0 \
+    GPL \
+    GPL-1.0-only \
+    GPL-1.0-or-later \
+    GPL-1.0-or-later WITH Linux-syscall-note \
+    GPL-1.1 \
+    GPL-2.0 \
+    GPL-2.0-only \
+    GPL-2.0-only WITH GCC-exception-2.0 \
+    GPL-2.0-only WITH Linux-syscall-note \
+    GPL-2.0-or-later \
+    GPL-2.0-or-later WITH GCC-exception-2.0 \
+    GPL-2.0-or-later WITH Linux-syscall-note \
+    GPL-3.0-only \
+    GPL-3.0-or-later \
+    GPL-3.0-or-later WITH Bison-exception-2.2
+
+LICENSES_REQUIRE_DISCLOSURE_STATIC= \
+    LGPL \
+    LGPL-1.0-or-later \
+    LGPL-2.0-only \
+    LGPL-2.0-or-later \
+    LGPL-2.0-or-later WITH Libtool-exception \
+    LGPL-2.0-or-later WITH Linux-syscall-note \
+    LGPL-2.1-only \
+    LGPL-2.1-only WITH Linux-syscall-note \
+    LGPL-2.1-or-later \
+    LGPL-2.1-or-later WITH Linux-syscall-note \
+    LGPL-3.0-only \
+    LGPL-3.0-or-later
+
+# These licenses allows any kind of linkage with proprietary code
+LICENSES_PERMISSIVE= \
+    0BSD \
+    Apache-1.0 \
+    Apache-1.1 \
+    Apache-2.0 \
+    Apache-2.0 WITH LLVM-exception \
+    APSL-2.0 \
+    Beerware \
+    blessing \
+    BSL-1.0 \
+    BSD \
+    BSD-1-Clause \
+    BSD-2-Clause \
+    BSD-2-Clause-Patent \
+    BSD-2-Clause-Views \
+    BSD-3-Clause \
+    BSD-4-Clause \
+    BSD-4-Clause-UC \
+    BSD-derived \
+    BSD-ORIGINAL-UC-1986 \
+    BSD-Source-Code \
+    Bsd-Simplified-Darwin \
+    Bsd-Unchanged \
+    Bsd-Unmodified \
+    bzip2-1.0.6 \
+    CC0-1.0 \
+    CC-PDDC \
+    Cmu-Computing-Services \
+    CUP-Parser \
+    curl \
+    Custom-Punycode \
+    Facebook-SDK \
+    FDK \
+    FSFAP \
+    FTL \
+    H2 \
+    IBM-pibs \
+    ICU \
+    Ietf \
+    IJG \
+    Intel-Simplified \
+    ISC \
+    JSON \
+    Khronos \
+    Libpbm \
+    LicenseRef-scancode-bitstream \
+    LicenseRef-scancode-ams-fonts \
+    Linux-OpenIB \
+    Libpng \
+    libpng-2.0 \
+    libtiff \
+    Martin-Birgmeier \
+    MIT \
+    MIT-0 \
+    MIT-CMU \
+    MIT-Modern-Variant \
+    MIT-Nagy \
+    MIT-open-group \
+    Mit-Old-Style \
+    Mit-Veillard-Variant \
+    MPL-1.0 \
+    MPL-1.1 \
+    MPL-2.0 \
+    Minpack \
+    NCSA \
+    NTP \
+    Not-Applicable \
+    Nvidia \
+    OGC-1.0 \
+    OLDAP-2.8 \
+    OML \
+    OpenSSL \
+    PayPal-SDK \
+    PCRE \
+    PD \
+    Public-Domain \
+    Public-Domain-US-Govt \
+    PHP-3.01 \
+    PIL \
+    Plexus \
+    PostgreSQL \
+    Protobuf-License \
+    PSF \
+    PSF-2.0 \
+    Python-2.0 \
+    Qhull \
+    Repoze-public \
+    RSA-MD \
+    RSA-MD4 \
+    RSA-1990 \
+    Sleepycat \
+    Snprintf \
+    SGI-B-2.0 \
+    SMLNJ \
+    SSH-short \
+    SSLeay \
+    Unicode-DFS-2016 \
+    Unicode-Icu-58 \
+    Unicode-Mappings \
+    Unlicense \
+    Unrar \
+    UPL-1.0 \
+    Vertica \
+    W3C \
+    WTFPL \
+    X11 \
+    X11-Lucent \
+    YandexOpen \
+    Zlib \
+    zlib-acknowledgement \
+    ZPL-2.1 \
+    ${LICENSES_PATCHES_FORBIDDEN}
+
+LICENSES_PERMISSIVE_DYNAMIC= \
+    LGPL \
+    LGPL-2.0-only \
+    LGPL-2.0-or-later \
+    LGPL-2.1-only \
+    LGPL-2.1-or-later \
+    LGPL-3.0-only \
+    LGPL-3.0-or-later
+
+# https://st.yandex-team.ru/ARCADIAWGSUP-34
+CUSTOM_LICENSE_LIBSSH2_AGENT_WIN=Libssh2-Agent-Win
+
+# TODO: this list is almost empty. needed for DEVRULES-151
+LICENSES_REQUIRE_CITATION= \
+    Apache-2.0 \
+    Cmu-Computing-Services \
+    OpenSSL \
+    Spencer-94 \
+    ${CUSTOM_LICENSE_LIBSSH2_AGENT_WIN}
+
+LICENSES_SERVICE= \
+    Service-Dll-Harness \
+    Service-Prebuilt-Tool \
+    Service-Py23-Proxy
+
+macro _REQUIRE_EXPLICIT_LICENSE(Prefix...) {
+    SET(EXPLICIT_LICENSE_PREFIXES ${Prefix})
+}
+
+### @usage: LICENSE(licenses...)
+###
+### Specify the licenses of the module, separated by spaces. Specifying multiple licenses interpreted as permission to use this
+### library satisfying all conditions of any of the listed licenses.
+###
+### A license must be prescribed for contribs
+macro LICENSE(Flags...) {
+    SET(LICENSE_EXPRESSION $Flags)
+    SET(LICENSE_NAMES $Flags)
+}
+
+### @usage RESTRICT_LICENSES(ALLOW_ONLY|DENY LicenseProperty...)
+###
+### Restrict licenses of direct and indirect module dependencies.
+###
+### ALLOW_ONLY restriction type requires dependent module to have at leas one license without propertis not listed in restrictions
+### list.
+###
+### DENY restriction type forbids dependency on module with no license without any listed propery from the list.
+###
+### Note: Can be used multiple times on the same module all specified constraints will be checked.
+### All macro invocation for the same module must use same constraints type (DENY or ALLOW_ONLY)
+macro RESTRICT_LICENSES(TYPE, EXCEPT[], RESTRICTIONS...) {
+    SET_APPEND(MODULE_LICENSES_RESTRICTION_TYPES $TYPE)
+    SET_APPEND(MODULE_LICENSES_RESTRICTIONS $RESTRICTIONS)
+    SET_APPEND(MODULE_LICENSES_RESTRICTION_EXCEPTIONS $EXCEPT)
+}
diff --git a/build/conf/linkers/ld.conf b/build/conf/linkers/ld.conf
new file mode 100644
index 0000000000..655c09dc66
--- /dev/null
+++ b/build/conf/linkers/ld.conf
@@ -0,0 +1,383 @@
+_LD_FLAGS_1=
+_LD_FLAGS_2=
+when ($MUSL == "yes") {
+    _LD_FLAGS_1=-Wl,--no-as-needed
+    when ($GCC == "yes") {
+        # MUSL_BFD: musl build uses --no-dynamic-linker linker flag
+        # which gold doesn't know about. And we can only specify linker
+        # type, not it's path as we do for Clang through linker selector.
+        _LD_FLAGS_2=-fuse-ld=bfd
+    }
+}
+elsewhen ($OS_LINUX == "yes") {
+    _LD_FLAGS_1=-ldl -lrt -Wl,--no-as-needed
+    when ($GCC == "yes") {
+        _LD_FLAGS_2=-Wl,-Bstatic -latomic -Wl,-Bdynamic
+    }
+}
+elsewhen ($OS_ANDROID == "yes") {
+    _LD_FLAGS_1=-ldl -Wl,--no-as-needed
+    when ($_DEFAULT_LINKER_ID == "lld" && $_ANDROID_API_LESS_THEN_29 == "yes") {
+        # https://github.com/android/ndk/issues/1196
+        _LD_FLAGS_2=-Wl,--no-rosegment
+    }
+}
+elsewhen ($OS_DARWIN == "yes") {
+    _LD_FLAGS_1=-Wl,-no_deduplicate
+    when ($CLANG != "yes") {
+        _LD_FLAGS_2=-Wl,-no_compact_unwind
+    }
+}
+
+_LD_FLAGS_IOS_MAPSMOBI_ARM=
+when ($OS_IOS == "yes" && $MAPSMOBI_BUILD_TARGET == "yes" && $ARCH_ARM) {
+    _LD_FLAGS_IOS_MAPSMOBI_ARM=-fembed-bitcode -Wl,-bitcode_verify
+}
+
+_LD_FLAGS_PROFILER_TYPE=
+when ($_BUILD_PROFILER_TYPE == "gprof") {
+    _LD_FLAGS_PROFILER_TYPE=-pg
+}
+
+_LD_FLAGS_COVERAGE=
+when ($_BUILD_COVERAGE == "yes") {
+    _LD_FLAGS_COVERAGE=-fprofile-arcs -ftest-coverage
+}
+
+_LD_FLAGS =
+_LD_FLAGS+=$_LD_FLAGS_1
+_LD_FLAGS+=$_LD_FLAGS_2
+_LD_FLAGS+=$_LD_FLAGS_IOS_MAPSMOBI_ARM
+_LD_FLAGS+=$_LD_FLAGS_PROFILER_TYPE
+_LD_FLAGS+=$_LD_FLAGS_COVERAGE
+_LD_FLAGS+=$LD_SDK_VERSION
+
+LDFLAGS+=$USER_LDFLAGS $_LD_FLAGS
+LDFLAGS_GLOBAL+=
+
+_START_GROUP=
+_END_GROUP=
+START_WHOLE_ARCHIVE_VALUE=
+END_WHOLE_ARCHIVE_VALUE=
+LD_STRIP_FLAG=
+_SONAME_OPTION=
+_LD_SRCS_GLOBALS=--start-wa ${rootrel;ext=.a:SRCS_GLOBAL} --end-wa ${rootrel;ext=.o:SRCS_GLOBAL} ${rootrel;ext=.supp:SRCS_GLOBAL}
+when ($OS_LINUX == "yes" || $OS_ANDROID == "yes" || $OS_CYGWIN == "yes" || $OS_NONE == "yes") {
+    _START_GROUP=-Wl,--start-group
+    _END_GROUP=-Wl,--end-group
+    START_WHOLE_ARCHIVE_VALUE=-Wl,--whole-archive
+    END_WHOLE_ARCHIVE_VALUE=-Wl,--no-whole-archive
+    LD_STRIP_FLAG=-s
+    _SONAME_OPTION=-soname
+    _LD_SRCS_GLOBALS=-Wl,--whole-archive ${rootrel;ext=.a:SRCS_GLOBAL} -Wl,--no-whole-archive ${rootrel;ext=.o:SRCS_GLOBAL} ${rootrel;ext=.supp:SRCS_GLOBAL}
+}
+
+when ($_LD_WHOLE_ARCHIVE == "yes") {
+}
+
+when ($OS_DARWIN == "yes" || $OS_IOS == "yes") {
+    _SONAME_OPTION=-install_name
+}
+
+_LD_LINKER_OUTPUT=
+_LD_LINKER_OUTPUT_FLAG=--linker-output ${output;pre=$MODULE_PREFIX;suf=$MODULE_SUFFIX$MODULE_VERSION.linker.txt:REALPRJNAME}
+
+# Enable section-level DCE (dead code elimination):
+# remove whole unused code and data sections
+# (needs `-ffunction-sections` and `-fdata-sections` to be useful)
+#
+# NOTE: CGO linker doesn't seem to support DCE, but shares common LDFLAGS
+_LD_DCE_FLAG_GC_SECTIONS=
+_LD_DCE_FLAG_PRINT_SECTIONS=
+when ($OS_DARWIN == "yes") {
+    _LD_DCE_FLAG_GC_SECTIONS=-Wl,-dead_strip
+}
+elsewhen ($OS_LINUX == "yes" || $OS_ANDROID == "yes") {
+    _LD_DCE_FLAG_GC_SECTIONS=-Wl,--gc-sections
+    when ($LINKER_DCE_PRINT_SECTIONS == "yes") {
+        _LD_DCE_FLAG_PRINT_SECTIONS=-Wl,--print-gc-sections
+        _LD_LINKER_OUTPUT=$_LD_LINKER_OUTPUT_FLAG
+    }
+}
+LD_DCE_FLAG =
+LD_DCE_FLAG+=$_LD_DCE_FLAG_GC_SECTIONS
+LD_DCE_FLAG+=$_LD_DCE_FLAG_PRINT_SECTIONS
+DCE_FLAG=
+
+_LD_ICF_FLAG=
+_LD_ICF_FLAG_PRINT_SECTIONS=
+when ($_DEFAULT_LINKER_ID == "lld") {
+    # Enable ICF (identical code folding pass) in safe mode
+    # https://research.google/pubs/pub36912/
+    _LD_ICF_FLAG=-Wl,-icf=safe
+    when ($LINKER_ICF_PRINT_SECTIONS == "yes") {
+        _LD_ICF_FLAG_PRINT_SECTIONS=-Wl,--print-icf-sections
+        _LD_LINKER_OUTPUT=$_LD_LINKER_OUTPUT_FLAG
+    }
+}
+LD_ICF_FLAG =
+LD_ICF_FLAG+=$_LD_ICF_FLAG
+LD_ICF_FLAG+=$_LD_ICF_FLAG_PRINT_SECTIONS
+ICF_FLAG=
+
+STRIP_FLAG=
+
+C_LIBRARY_PATH=
+C_SYSTEM_LIBRARIES_INTERCEPT=
+
+_LD_THREAD_LIBRARY=
+when ($OS_LINUX == "yes" || $OS_DARWIN == "yes") {
+    _LD_THREAD_LIBRARY=-lpthread
+}
+
+_LD_USE_STDLIB=
+when ($_BUILD_COVERAGE == "yes" || $GCOV_COVERAGE == "yes" || $CLANG_COVERAGE == "yes" || $_BUILD_SANITIZED == "yes") {
+    _LD_USE_STDLIB=
+}
+elsewhen ($OS_ANDROID == "yes") {
+    when ($_ANDROID_NDK_VERSION_LESS_THEN_23 == "yes") {
+        # Preserve old behaviour: specify runtime libs manually
+        _LD_USE_STDLIB=-nodefaultlibs
+    }
+    otherwise {
+        # Use toolchain defaults to link with libunwind/clang_rt.builtins
+        _LD_USE_STDLIB=-nostdlib++
+    }
+}
+elsewhen ($OS_LINUX == "yes" || $OS_DARWIN == "yes" || $OS_IOS == "yes") {
+    _LD_USE_STDLIB=-nodefaultlibs
+}
+
+_C_SYSTEM_LIBRARIES=$_LD_USE_STDLIB $_LD_THREAD_LIBRARY $_LD_SYS_LIB -lc
+when ($MUSL == "yes") {
+    _C_SYSTEM_LIBRARIES=-nostdlib
+}
+C_SYSTEM_LIBRARIES=$_C_SYSTEM_LIBRARIES
+
+OBJADDE=
+
+LD_EXPORT_ALL_DYNAMIC_SYMBOLS_FLAG=
+when ($OS_LINUX == "yes" || $OS_ANDROID == "yes") {
+    LD_EXPORT_ALL_DYNAMIC_SYMBOLS_FLAG=-rdynamic
+}
+
+NO_EXPORT_DYNAMIC_SYMBOLS=
+EXPORTS_VALUE=$LD_EXPORT_ALL_DYNAMIC_SYMBOLS_FLAG
+when ($EXPORTS_FILE) {
+    EXPORTS_VALUE=$LD_EXPORT_ALL_DYNAMIC_SYMBOLS_FLAG -Wl,--version-script=${input:EXPORTS_FILE}
+}
+when ($NO_EXPORT_DYNAMIC_SYMBOLS == "yes") {
+    EXPORTS_VALUE=
+}
+
+LINKER_SCRIPT_VALUE=${ext=.ld;pre=-T:SRCS_GLOBAL}
+
+_LINKER_TIME_TRACE_GRANULARITY=500
+when ($TIME_TRACE_GRANULARITY && $TIME_TRACE_GRANULARITY != "") {
+    _LINKER_TIME_TRACE_GRANULARITY=$TIME_TRACE_GRANULARITY
+}
+
+_LINKER_TIME_TRACE_FLAG=
+when (($TIME_TRACE == "yes" || $LINKER_TIME_TRACE == "yes") && $_DEFAULT_LINKER_ID == "lld") {
+    _LINKER_TIME_TRACE_FLAG=\
+-Wl,--time-trace \
+-Wl,--time-trace-granularity=$_LINKER_TIME_TRACE_GRANULARITY \
+-Wl,--time-trace-file=${output;rootrel;pre=$MODULE_PREFIX;suf=$MODULE_SUFFIX.time_trace.json:REALPRJNAME}
+}
+
+_EXE_FLAGS=\
+$C_FLAGS_PLATFORM \
+$BEFORE_PEERS \
+$_START_GROUP \
+${rootrel:PEERS} \
+$_END_GROUP \
+$AFTER_PEERS \
+$EXPORTS_VALUE \
+$LINKER_SCRIPT_VALUE \
+$LDFLAGS \
+$LDFLAGS_GLOBAL \
+$OBJADDE \
+$OBJADDE_LIB \
+$C_LIBRARY_PATH \
+$C_SYSTEM_LIBRARIES_INTERCEPT \
+$C_SYSTEM_LIBRARIES \
+$STRIP_FLAG \
+$DCE_FLAG \
+$ICF_FLAG \
+$_LINKER_TIME_TRACE_FLAG
+
+_SONAME_FLAG=-Wl,$_SONAME_OPTION,$_SONAME
+_SHARED_FLAG=-shared
+_EXEC_SHARED_FLAG=
+when ($OS_LINUX == "yes") {
+    _EXEC_SHARED_FLAG=-pie -fPIE -Wl,--unresolved-symbols=ignore-all -rdynamic
+}
+
+_LD_ENV_STYLE=${cwd:ARCADIA_BUILD_ROOT} $TOOLCHAIN_ENV ${kv;hide:"p LD"} ${requirements;hide:LD_REQUIREMENTS} ${kv;hide:"pc light-blue"} ${kv;hide:"show_out"}
+
+# Program
+GENERATE_MF_CMD=\
+$YMAKE_PYTHON ${input:"build/scripts/generate_mf.py"} \
+--build-root $ARCADIA_BUILD_ROOT \
+--module-name $REALPRJNAME \
+-o ${output;rootrel;pre=$MODULE_PREFIX;suf=$MODULE_SUFFIX.mf:REALPRJNAME} \
+-t $MODULE_TYPE \
+--ya-start-command-file \
+-Ya,lics $LICENSE_NAMES \
+-Ya,peers ${rootrel:PEERS} \
+-Ya,credits ${input:CREDITS_TEXTS_FILE} $CREDITS_FLAGS \
+--ya-end-command-file
+
+LINK_SCRIPT_EXE_FLAGS=
+
+REAL_LINK_EXE_CMDLINE =\
+$YMAKE_PYTHON ${input:"build/scripts/link_exe.py"} \
+--source-root $ARCADIA_ROOT
+REAL_LINK_EXE_CMDLINE+=$_LD_LINKER_OUTPUT
+REAL_LINK_EXE_CMDLINE+=\
+${pre=--whole-archive-peers :WHOLE_ARCHIVE_PEERS} \
+${pre=--whole-archive-libs :_WHOLE_ARCHIVE_LIBS_VALUE_GLOBAL} \
+$_LD_ARCH_FLAG \
+$LINK_SCRIPT_EXE_FLAGS \
+$CXX_COMPILER \
+$_LD_SRCS_GLOBALS \
+$VCS_C_OBJ $AUTO_INPUT -o $TARGET \
+$_EXE_FLAGS \
+$_LD_ENV_STYLE
+
+REAL_LINK_EXE_TIDY=\
+$YMAKE_PYTHON ${input:"build/scripts/clang_tidy_arch.py"} \
+--build-root $ARCADIA_BUILD_ROOT \
+--source-root $ARCADIA_ROOT \
+--output-file $TARGET \
+$AUTO_INPUT \
+$_LD_ENV_STYLE
+
+# Executable Shared Library
+
+REAL_LINK_EXEC_DYN_LIB_CMDLINE =\
+$YMAKE_PYTHON ${input:"build/scripts/link_dyn_lib.py"} \
+--target $TARGET
+REAL_LINK_EXEC_DYN_LIB_CMDLINE+=$_LD_LINKER_OUTPUT
+REAL_LINK_EXEC_DYN_LIB_CMDLINE+=\
+${pre=--whole-archive-peers :WHOLE_ARCHIVE_PEERS} \
+${pre=--whole-archive-libs :_WHOLE_ARCHIVE_LIBS_VALUE_GLOBAL} \
+$_LD_ARCH_FLAG \
+$LINK_DYN_LIB_FLAGS \
+$CXX_COMPILER \
+$_LD_SRCS_GLOBALS \
+$VCS_C_OBJ $AUTO_INPUT -o $TARGET \
+$_EXEC_SHARED_FLAG \
+$_SONAME_FLAG \
+$_EXE_FLAGS \
+$_LD_ENV_STYLE
+
+REAL_LINK_EXEC_DYN_LIB=$REAL_LINK_EXEC_DYN_LIB_IMPL($_WHOLE_ARCHIVE_PEERS_VALUE)
+
+# Shared Library
+
+LINK_DYN_LIB_FLAGS=
+
+REAL_LINK_DYN_LIB_CMDLINE =\
+$YMAKE_PYTHON ${input:"build/scripts/link_dyn_lib.py"} \
+--target $TARGET
+REAL_LINK_DYN_LIB_CMDLINE+=$_LD_LINKER_OUTPUT
+REAL_LINK_DYN_LIB_CMDLINE+=\
+${pre=--whole-archive-peers :WHOLE_ARCHIVE_PEERS} \
+${pre=--whole-archive-libs :_WHOLE_ARCHIVE_LIBS_VALUE_GLOBAL} \
+$_LD_ARCH_FLAG \
+$LINK_DYN_LIB_FLAGS \
+$CXX_COMPILER \
+$_LD_SRCS_GLOBALS \
+$VCS_C_OBJ $AUTO_INPUT -o $TARGET \
+$_SHARED_FLAG \
+$_SONAME_FLAG \
+$_EXE_FLAGS \
+$_LD_ENV_STYLE
+
+REAL_LINK_DYN_LIB=$REAL_LINK_DYN_LIB_IMPL($_WHOLE_ARCHIVE_PEERS_VALUE)
+
+_DWARF_COMMAND=
+when ($OS_DARWIN == "yes" && $NO_DEBUGINFO != "yes") {
+    _DWARF_COMMAND=$DWARF_TOOL $TARGET -o ${output;pre=$MODULE_PREFIX$REALPRJNAME.dSYM/Contents/Resources/DWARF/$MODULE_PREFIX:REALPRJNAME} $_LD_ENV_STYLE
+}
+DWARF_COMMAND=$_DWARF_COMMAND
+
+_REAL_LINK_EXE=$REAL_LINK_EXE_IMPL($_WHOLE_ARCHIVE_PEERS_VALUE)
+_LINK_EXE=$GENERATE_MF && $GENERATE_VCS_C_INFO_NODEP && $REAL_LINK_EXE && $DWARF_COMMAND && $LINK_ADDITIONAL_SECTIONS_COMMAND && $PACK_IOS_CMD
+_LINK_DYN_LIB=$GENERATE_MF && $GENERATE_VCS_C_INFO_NODEP && $REAL_LINK_DYN_LIB && $DWARF_COMMAND && $LINK_ADDITIONAL_SECTIONS_COMMAND
+when ($TIDY == "yes") {
+    _REAL_LINK_EXE=$REAL_LINK_EXE_TIDY
+    _LINK_EXE=$REAL_LINK_EXE
+    _LINK_DYN_LIB=$REAL_LINK_EXE
+}
+REAL_LINK_EXE=$_REAL_LINK_EXE
+LINK_EXE=$_LINK_EXE
+LINK_DYN_LIB=$_LINK_DYN_LIB
+
+LINK_EXEC_DYN_LIB=\
+$GENERATE_MF && \
+$GENERATE_VCS_C_INFO_NODEP && \
+$REAL_LINK_EXEC_DYN_LIB && \
+$DWARF_COMMAND && \
+$LINK_ADDITIONAL_SECTIONS_COMMAND
+
+SWIG_DLL_JAR_CMD=\
+$GENERATE_MF && \
+$GENERATE_VCS_C_INFO_NODEP && \
+$REAL_SWIG_DLL_JAR_CMD && \
+$DWARF_COMMAND
+
+_LD_TAIL_LINK_LIB=$AUTO_INPUT ${requirements;hide:LIB_REQUIREMENTS} ${kv;hide:"p AR"} $TOOLCHAIN_ENV ${kv;hide:"pc light-red"} ${kv;hide:"show_out"}
+_LD_ARCHIVER=$YMAKE_PYTHON ${input:"build/scripts/link_lib.py"} ${quo:AR_TOOL} $AR_TYPE $_LD_LLVM_AR_FORMAT $ARCADIA_BUILD_ROOT $_LD_AR_PLUGIN
+_LD_LIB_GENERATE_MF=$GENERATE_MF &&
+when ($TIDY == "yes") {
+    _LD_ARCHIVER=$YMAKE_PYTHON ${input:"build/scripts/clang_tidy_arch.py"} --source-root $ARCADIA_ROOT --build-root $ARCADIA_BUILD_ROOT --output-file
+    _LD_LIB_GENERATE_MF=
+}
+LINK_LIB=$_LD_LIB_GENERATE_MF $_LD_ARCHIVER $TARGET $_LD_TAIL_LINK_LIB
+GLOBAL_LINK_LIB=$_LD_ARCHIVER $GLOBAL_TARGET $_LD_TAIL_LINK_LIB
+
+# "Fat Object" : pre-linked global objects and static library with all dependencies
+_LD_LINK_FAT_PREFIX=$GENERATE_MF && $GENERATE_VCS_C_INFO_NODEP && $YMAKE_PYTHON ${input:"build/scripts/link_fat_obj.py"} --build-root $ARCADIA_BUILD_ROOT
+_LD_LINK_FAT_SRCS_GLOBALS_WA=$_LD_SRCS_GLOBALS
+_LD_LINK_FAT_SRCS_GLOBALS_NO_WA=${rootrel;ext=.a:SRCS_GLOBAL} ${rootrel;ext=.o:SRCS_GLOBAL}
+
+_LD_LINK_FAT_SUFFIX1=$_LD_ARCH_FLAG \
+-Ya,input $AUTO_INPUT $VCS_C_OBJ \
+-Ya,global_srcs
+
+_LD_LINK_FAT_SUFFIX2=-Ya,peers $PEERS \
+-Ya,linker $CXX_COMPILER \
+$LDFLAGS_GLOBAL $C_FLAGS_PLATFORM $LD_SDK_VERSION \
+-Ya,archiver $_LD_ARCHIVER \
+$TOOLCHAIN_ENV ${kv;hide:"p LD"} ${requirements;hide:LD_REQUIREMENTS} ${kv;hide:"pc light-blue"} ${kv;hide:"show_out"}
+
+LINK_FAT_OBJECT=\
+$_LD_LINK_FAT_PREFIX \
+--obj=$TARGET --lib=${output:REALPRJNAME.a} \
+$_LD_LINK_FAT_SUFFIX1 \
+$_LD_LINK_FAT_SRCS_GLOBALS_WA \
+$_LD_LINK_FAT_SUFFIX2
+
+LINK_RECURSIVE_LIBRARY=\
+$_LD_LINK_FAT_PREFIX \
+--lib=$TARGET --with-own-obj --with-global-srcs \
+$_LD_LINK_FAT_SUFFIX1 \
+$_LD_LINK_FAT_SRCS_GLOBALS_NO_WA \
+$_LD_LINK_FAT_SUFFIX2
+
+LINK_FAT_OBJECT_LIBRARY=\
+$_LD_LINK_FAT_PREFIX \
+--lib=$TARGET $FAT_OBJECT_ARGS $FAT_OBJECT_OUTS \
+$_LD_LINK_FAT_SUFFIX1 \
+$_LD_LINK_FAT_SRCS_GLOBALS_NO_WA \
+$_LD_LINK_FAT_SUFFIX2
+
+LIBRT=-lrt
+MD5LIB=-lcrypt
+LIBRESOLV=
+when ($OS_LINUX || $OS_DARWIN || $OS_ANDROID) {
+    LIBRESOLV=-lresolv
+}
+PROFFLAG=-pg
diff --git a/build/conf/linkers/msvc_linker.conf b/build/conf/linkers/msvc_linker.conf
new file mode 100644
index 0000000000..e905024bda
--- /dev/null
+++ b/build/conf/linkers/msvc_linker.conf
@@ -0,0 +1,271 @@
+_MSVC_ARCH=
+when ($ARCH_I386 == "yes" || $ARCH_I686 == "yes") {
+    _MSVC_ARCH=x86
+}
+elsewhen ($ARCH_X86_64 == "yes") {
+    _MSVC_ARCH=x64
+}
+elsewhen ($ARCH_ARM == "yes") {
+    _MSVC_ARCH=arm
+}
+
+_FLAGS_MACHINE=/MACHINE:${toupper:_MSVC_ARCH}
+
+_FLAGS_IGNORE=/IGNORE:4221
+
+_FLAGS_COMMON_IDE_MSVS=
+when ($IDE_MSVS == "yes") {
+    _FLAGS_COMMON_IDE_MSVS=/INCREMENTAL
+}
+otherwise {
+    _FLAGS_COMMON_IDE_MSVS=/INCREMENTAL:NO
+}
+
+# TODO(nslus): DEVTOOLS-1868 remove restriction.
+_FLAGS_DEBUG_ONLY_DEBUG=
+_FLAGS_RELEASE_ONLY_DEBUG=
+_FLAGS_COMMON_DEBUG=
+when (!$NO_DEBUGINFO || $NO_DEBUGINFO == "no" || $NO_DEBUGINFO == "0") {
+    when ($IDE_MSVS == "yes") {
+        when ($CLANG_CL == "yes") {
+            _FLAGS_DEBUG_ONLY_DEBUG=/DEBUG
+        }
+        otherwise {
+            _FLAGS_DEBUG_ONLY_DEBUG=/DEBUG:FASTLINK
+        }
+        _FLAGS_RELEASE_ONLY_DEBUG=/DEBUG
+    }
+    otherwise {
+        _FLAGS_COMMON_DEBUG=/DEBUG
+    }
+}
+
+_FLAGS_COMMON_LIBPATHS=
+when ($IDE_MSVS != "yes") {
+    _FLAGS_COMMON_LIBPATHS=\
+/LIBPATH:"$_MSVC_TC_KIT_LIBS/um/$_MSVC_ARCH" \
+/LIBPATH:"$_MSVC_TC_KIT_LIBS/ucrt/$_MSVC_ARCH" \
+/LIBPATH:"$_MSVC_TC_VC_ROOT/lib/$_MSVC_ARCH"
+}
+
+_FLAGS_COMMON =/NOLOGO /ERRORREPORT:PROMPT /SUBSYSTEM:CONSOLE /TLBID:1 $MSVC_DYNAMICBASE /NXCOMPAT
+_FLAGS_COMMON+=$_FLAGS_IGNORE
+_FLAGS_COMMON+=$_FLAGS_MACHINE
+_FLAGS_COMMON+=$_FLAGS_COMMON_IDE_MSVS
+_FLAGS_COMMON+=$_FLAGS_COMMON_DEBUG
+_FLAGS_COMMON+=$_FLAGS_COMMON_LIBPATHS
+
+_FLAGS_DEBUG_ONLY_CLANG_CL=
+when ($CLANG_CL == "yes") {
+    _FLAGS_DEBUG_ONLY_CLANG_CL=/STACK:4194304
+}
+
+_FLAGS_DEBUG_ONLY =$_FLAGS_DEBUG_ONLY_CLANG_CL
+_FLAGS_DEBUG_ONLY+=$_FLAGS_DEBUG_ONLY_DEBUG
+_FLAGS_RELEASE_ONLY =$_FLAGS_RELEASE_ONLY_DEBUG
+
+LINK_EXE_FLAGS_DEBUG =$_FLAGS_COMMON
+LINK_EXE_FLAGS_DEBUG+=$_FLAGS_DEBUG_ONLY
+
+LINK_EXE_FLAGS_RELEASE =$_FLAGS_COMMON
+LINK_EXE_FLAGS_RELEASE+=$_FLAGS_RELEASE_ONLY
+
+LINK_LIB_FLAGS=$_FLAGS_IGNORE $_FLAGS_MACHINE
+
+LINK_STDLIBS=\
+advapi32.lib \
+comdlg32.lib \
+crypt32.lib \
+dnsapi.lib \
+gdi32.lib \
+iphlpapi.lib \
+kernel32.lib \
+mswsock.lib \
+ole32.lib \
+oleaut32.lib \
+psapi.lib \
+rpcrt4.lib \
+secur32.lib \
+shell32.lib \
+shlwapi.lib \
+user32.lib \
+userenv.lib \
+uuid.lib \
+version.lib \
+winmm.lib \
+winspool.lib \
+ws2_32.lib
+
+LDFLAGS_GLOBAL=
+LDFLAGS=
+OBJADDE=
+
+LINK_EXE_FLAGS=$LINK_EXE_FLAGS_PER_TYPE
+
+LINK_IMPLIB=/IMPLIB:${output;noext;rootrel;pre=$MODULE_PREFIX:REALPRJNAME.lib}
+_LINK_EXTRA_OUTPUT=
+when (!$NO_DEBUGINFO || $NO_DEBUGINFO == "no" || $NO_DEBUGINFO == "0") {
+    _LINK_EXTRA_OUTPUT=/PDB:${output;noext;rootrel;pre=$MODULE_PREFIX:REALPRJNAME.pdb}
+}
+LINK_EXTRA_OUTPUT=$_LINK_EXTRA_OUTPUT
+
+LIB_WRAPPER=${YMAKE_PYTHON} ${input:"build/scripts/fix_msvc_output.py"} lib
+LINK_WRAPPER=${YMAKE_PYTHON} ${input:"build/scripts/fix_msvc_output.py"} link
+when ($_UNDER_WINE == "yes") {
+    LIB_WRAPPER=
+    LINK_WRAPPER=
+}
+
+LINK_WRAPPER_DYNLIB=${YMAKE_PYTHON} ${input:"build/scripts/link_dyn_lib.py"} --arch WINDOWS --target $TARGET
+
+EXPORTS_VALUE=
+LINK_IMPLIB_VALUE=
+when ($EXPORTS_FILE) {
+    LINK_IMPLIB_VALUE=$LINK_IMPLIB
+    EXPORTS_VALUE=/DEF:${input:EXPORTS_FILE}
+}
+
+GENERATE_MF_CMD=\
+$YMAKE_PYTHON ${input:"build/scripts/generate_mf.py"} \
+--build-root $ARCADIA_BUILD_ROOT \
+--module-name $REALPRJNAME \
+-o ${output;rootrel;pre=$MODULE_PREFIX;suf=$MODULE_SUFFIX.mf:REALPRJNAME} \
+-t $MODULE_TYPE \
+--ya-start-command-file \
+-Ya,lics $LICENSE_NAMES \
+-Ya,peers ${rootrel:PEERS} \
+-Ya,credits ${input:CREDITS_TEXTS_FILE} $CREDITS_FLAGS \
+--ya-end-command-file
+
+# we split srcs_global into two groups: libs and objs
+# # each group can be in its own command file
+# first group need /WHOLEARCHIVE: prefix which will be added in fix_msvc_output.py or run_msvc_wine.py
+# the tail of link commands will be added in the third command file
+_MSVC_SRCS_GLOBALS=\
+--start-wa --ya-start-command-file ${qe;rootrel;ext=.lib:SRCS_GLOBAL} --ya-end-command-file --end-wa \
+--ya-start-command-file ${qe;rootrel;ext=.obj:SRCS_GLOBAL} --ya-end-command-file
+
+REAL_LINK_DYN_LIB_CMDLINE=\
+${TOOLCHAIN_ENV} \
+${cwd:ARCADIA_BUILD_ROOT} \
+${LINK_WRAPPER} \
+${LINK_WRAPPER_DYNLIB} \
+${LINK_EXE_CMD} \
+${LINK_IMPLIB_VALUE} \
+/DLL \
+/OUT:${qe;rootrel:TARGET} \
+${LINK_EXTRA_OUTPUT} \
+${EXPORTS_VALUE} \
+${pre=--whole-archive-peers :WHOLE_ARCHIVE_PEERS} \
+${pre=--whole-archive-libs :_WHOLE_ARCHIVE_LIBS_VALUE_GLOBAL} \
+$_MSVC_SRCS_GLOBALS \
+--ya-start-command-file \
+${VCS_C_OBJ_RR} \
+${qe;rootrel:AUTO_INPUT} \
+${qe;rootrel;ext=.lib:PEERS} ${qe;rootrel;ext=.dll;noext;suf=.lib:PEERS} \
+$LINK_EXE_FLAGS \
+$LINK_STDLIBS $LDFLAGS \
+$LDFLAGS_GLOBAL \
+$OBJADDE \
+--ya-end-command-file
+
+REAL_LINK_DYN_LIB=$REAL_LINK_DYN_LIB_IMPL($_WHOLE_ARCHIVE_PEERS_VALUE)
+
+SWIG_DLL_JAR_CMD=$GENERATE_MF && $GENERATE_VCS_C_INFO_NODEP && $REAL_SWIG_DLL_JAR_CMD
+
+_MSVC_HEAD_LINK_LIB=${TOOLCHAIN_ENV} ${cwd:ARCADIA_BUILD_ROOT} ${LIB_WRAPPER} ${LINK_LIB_CMD}
+_MSVC_TAIL_LINK_LIB=\
+--ya-start-command-file \
+${qe;rootrel:AUTO_INPUT} \
+$LINK_LIB_FLAGS \
+--ya-end-command-file \
+${requirements;hide:LIB_REQUIREMENTS} ${hide;kv:"soe"} ${hide;kv:"p AR"} ${hide;kv:"pc light-red"}
+
+LINK_LIB=${GENERATE_MF} && $_MSVC_HEAD_LINK_LIB /OUT:${qe;rootrel:TARGET} $_MSVC_TAIL_LINK_LIB
+GLOBAL_LINK_LIB=$_MSVC_HEAD_LINK_LIB /OUT:${qe;rootrel:GLOBAL_TARGET} $_MSVC_TAIL_LINK_LIB
+
+LINK_EXE_CMDLINE=\
+${GENERATE_MF} && \
+$GENERATE_VCS_C_INFO_NODEP && \
+${TOOLCHAIN_ENV} \
+${cwd:ARCADIA_BUILD_ROOT} \
+${LINK_WRAPPER} \
+${LINK_EXE_CMD} \
+/OUT:${qe;rootrel:TARGET} \
+${pre=--whole-archive-peers :WHOLE_ARCHIVE_PEERS} \
+${pre=--whole-archive-libs :_WHOLE_ARCHIVE_LIBS_VALUE_GLOBAL} \
+${LINK_EXTRA_OUTPUT} \
+$_MSVC_SRCS_GLOBALS \
+--ya-start-command-file \
+${VCS_C_OBJ_RR} \
+${qe;rootrel:AUTO_INPUT} \
+$LINK_EXE_FLAGS \
+$LINK_STDLIBS \
+$LDFLAGS \
+$LDFLAGS_GLOBAL \
+$OBJADDE \
+${qe;rootrel;ext=.lib:PEERS} ${qe;rootrel;ext=.dll;noext;suf=.lib:PEERS} \
+--ya-end-command-file \
+${hide;kv:"soe"} ${hide;kv:"p LD"} ${requirements;hide:LD_REQUIREMENTS} ${hide;kv:"pc blue"}
+
+LINK_EXE=$LINK_EXE_IMPL($_WHOLE_ARCHIVE_PEERS_VALUE)
+
+LINK_DYN_LIB=${GENERATE_MF} && $GENERATE_VCS_C_INFO_NODEP && $REAL_LINK_DYN_LIB ${hide;kv:"soe"} ${hide;kv:"p LD"} ${requirements;hide:LD_REQUIREMENTS} ${hide;kv:"pc blue"}
+
+LINK_EXEC_DYN_LIB_CMDLINE=\
+${GENERATE_MF} && \
+$GENERATE_VCS_C_INFO_NODEP && \
+${TOOLCHAIN_ENV} \
+${cwd:ARCADIA_BUILD_ROOT} \
+${LINK_WRAPPER} \
+${LINK_WRAPPER_DYNLIB} \
+${LINK_EXE_CMD} \
+/OUT:${qe;rootrel:TARGET} \
+${LINK_EXTRA_OUTPUT} \
+${EXPORTS_VALUE} \
+${pre=--whole-archive-peers :WHOLE_ARCHIVE_PEERS} \
+${pre=--whole-archive-libs :_WHOLE_ARCHIVE_LIBS_VALUE_GLOBAL} \
+$_MSVC_SRCS_GLOBALS \
+'--ya-start-command-file \
+${VCS_C_OBJ_RR} \
+${qe;rootrel:AUTO_INPUT} \
+${qe;rootrel;ext=.lib:PEERS} ${qe;rootrel;ext=.dll;noext;suf=.lib:PEERS} \
+$LINK_EXE_FLAGS \
+$LINK_STDLIBS \
+$LDFLAGS $LDFLAGS_GLOBAL \
+$OBJADDE \
+--ya-end-command-file \
+${hide;kv:"soe"} ${hide;kv:"p LD"} ${requirements;hide:LD_REQUIREMENTS} ${hide;kv:"pc blue"}
+
+LINK_EXEC_DYN_LIB=$LINK_EXEC_DYN_LIB_IMPL($_WHOLE_ARCHIVE_PEERS_VALUE)
+
+LINK_GLOBAL_FAT_OBJECT=\
+${TOOLCHAIN_ENV} \
+${cwd:ARCADIA_BUILD_ROOT} \
+${LIB_WRAPPER} \
+${LINK_LIB_CMD} \
+/OUT:${qe;rootrel:TARGET} \
+--ya-start-command-file \
+${qe;rootrel;ext=.lib:SRCS_GLOBAL} \
+${qe;rootrel;ext=.obj:SRCS_GLOBAL} \
+${qe;rootrel:AUTO_INPUT} \
+$LINK_LIB_FLAGS \
+--ya-end-command-file
+
+LINK_PEERS_FAT_OBJECT=\
+${TOOLCHAIN_ENV} \
+${cwd:ARCADIA_BUILD_ROOT} \
+${LIB_WRAPPER} \
+${LINK_LIB_CMD} \
+/OUT:${qe;rootrel;output:REALPRJNAME.lib} \
+--ya-start-command-file \
+${qe;rootrel:PEERS} \
+$LINK_LIB_FLAGS \
+--ya-end-command-file
+
+LINK_FAT_OBJECT=\
+${GENERATE_MF} && \
+$GENERATE_VCS_C_INFO_NODEP && \
+$LINK_GLOBAL_FAT_OBJECT && \
+$LINK_PEERS_FAT_OBJECT \
+${kv;hide:"p LD"} ${requirements;hide:LD_REQUIREMENTS} ${kv;hide:"pc light-blue"} ${kv;hide:"show_out"}
diff --git a/build/conf/opensource.conf b/build/conf/opensource.conf
new file mode 100644
index 0000000000..027f6a3e42
--- /dev/null
+++ b/build/conf/opensource.conf
@@ -0,0 +1,14 @@
+when ($CATBOOST_OPENSOURCE == "yes") {

+    OPENSOURCE=yes

+}

+

+when ($OPENSOURCE) {

+    LOCAL_YDB_DOCKER_PUBLIC_BUILD=yes

+    CATBOOST_OPENSOURCE=yes

+    USE_DYNAMIC_IDN=yes

+    USE_DYNAMIC_AIO=yes

+    USE_DYNAMIC_ICONV=yes

+    USE_ASMLIB=no

+    SO_OUTPUTS=yes

+    UDF_NO_PROBE=yes

+}

diff --git a/build/conf/project_specific/maps/aar.conf b/build/conf/project_specific/maps/aar.conf
new file mode 100644
index 0000000000..780ff38984
--- /dev/null
+++ b/build/conf/project_specific/maps/aar.conf
@@ -0,0 +1,350 @@
+
+_GRADLE_FLAGS_VALUE=
+### @usage: GRADLE_FLAGS(flags...) # internal
+###
+### SEt additional flags for gradle
+macro GRADLE_FLAGS(FLAGS...) {
+    SET_APPEND(_GRADLE_FLAGS_VALUE $FLAGS)
+}
+
+### @usage: PROGURAD_RULES(ProguardRuleFiles...)
+###
+### This macro is strictly prohibited to use outside of mapsmobi project
+macro PROGUARD_RULES(RULES...) {
+    SET_APPEND(_PROGUARD_RULES_GLOBAL $RULES)
+}
+
+### @usage: AARS(Aars...)
+###
+### This macro is strictly prohibited to use outside of mapsmobi project
+macro AARS(DEPS...) {
+    SET_APPEND(_AARS_GLOBAL $DEPS)
+}
+
+### @usage: MOBILE_DLL() # internal
+module MOBILE_DLL: DLL {
+    .CMD=LINK_MOBILE_DLL
+
+    PEERDIR(build/external_resources/android_sdk)
+    PEERDIR(build/external_resources/gradle)
+    PEERDIR(build/platform/java/jdk)
+    PEERDIR($JDK_RESOURCE_PEERDIR)
+
+    SET(BIN_AAR_DIR $BINDIR/aar)
+    SET(BIN_TMP_DIR $BINDIR/tmp)
+}
+
+_MOBILE_TEST_APK_AAR_MANIFEST_VALUE=
+### @usage: MOBILE_TEST_APK_AAR_MANIFEST(file) # internal
+macro MOBILE_TEST_APK_AAR_MANIFEST(FILE) {
+    SET(_MOBILE_TEST_APK_AAR_MANIFEST_VALUE $FILE)
+}
+
+_MOBILE_TEST_APK_AAR_PROGUARD_RULES_VALUE=
+### @usage: MOBILE_TEST_APK_AAR_PROGUARD_RULES(file) # internal
+macro MOBILE_TEST_APK_AAR_PROGUARD_RULES(FILE) {
+    SET(_MOBILE_TEST_APK_AAR_PROGUARD_RULES_VALUE $FILE)
+}
+
+_MOBILE_TEST_APK_AAR_AARS_VALUE=
+### @usage: MOBILE_TEST_APK_AAR_AARS(filenames...) # internal
+macro MOBILE_TEST_APK_AAR_AARS(AARS...) {
+    SET_APPEND(_MOBILE_TEST_APK_AAR_AARS_VALUE $AARS)
+}
+
+_MOBILE_TEST_APK_AAR_BUNDLES_VALUE=
+### @usage: MOBILE_TEST_APK_AAR_BUNDLES(filenames...) # internal
+macro MOBILE_TEST_APK_AAR_BUNDLES(BUNDLES...) {
+    SET_APPEND(_MOBILE_TEST_APK_AAR_BUNDLES_VALUE $BUNDLES)
+    BUNDLE_EXTRA_INPUTS($BUNDLES)
+}
+
+_MOBILE_TEST_APK_TEMPLATE_DIR=
+### @usage: MOBILE_TEST_APK_TEMPLATE(dir filenames...) # internal
+macro MOBILE_TEST_APK_TEMPLATE(TEMPLATE_DIR, INPUTS...) {
+    SET(_MOBILE_TEST_APK_TEMPLATE_DIR $TEMPLATE_DIR)
+    BUNDLE_EXTRA_INPUTS(${pre=$TEMPLATE_DIR/:INPUTS})
+}
+
+_MOBILE_TEST_APK_CMDLINE=\
+$FS_TOOLS md $BIN_TMP_DIR \
+&& $FS_TOOLS md $BINDIR/.android \
+&& $COPY_CMD $GRADLE_DEBUG_STORE_RESOURCE_GLOBAL/debug.keystore $BINDIR/.android/debug.keystore \
+&& $FS_TOOLS md $BINDIR/jni_libs/$ARCH_NAME \
+&& $YMAKE_PYTHON ${input:"build/scripts/extract_asrc.py"} --output $BIN_TMP_DIR --input ${suf=.asrc:PEERS} \
+&& $MOVE_FILE $OUTPUT $BINDIR/jni_libs/$ARCH_NAME/${pre=lib;suf=.so:_MOBILE_TEST_APK_LIBRARY_NAME} \
+&& $FS_TOOLS md $BIN_AAR_DIR \
+&& $YMAKE_PYTHON ${input:"build/scripts/gen_aar_gradle_script.py"} \
+${input;hide:EXTRA_INPUTS} \
+--aidl-dirs $BIN_TMP_DIR/aidl \
+--assets-dirs $BIN_TMP_DIR/assets \
+--java-dirs $BIN_TMP_DIR/src \
+--jni-libs-dirs $BINDIR/jni_libs \
+--res-dirs $BIN_TMP_DIR/res \
+--manifest ${input:_MOBILE_TEST_APK_AAR_MANIFEST_VALUE} \
+--proguard-rules ${input:_MOBILE_TEST_APK_AAR_PROGUARD_RULES_VALUE} ${input:_PROGUARD_RULES_GLOBAL} \
+--aars $_MOBILE_TEST_APK_AAR_AARS_VALUE $_AARS_GLOBAL \
+--bundles $_MOBILE_TEST_APK_AAR_BUNDLES_VALUE \
+--output-dir $BIN_AAR_DIR \
+--bundle-name unittest \
+--maven-repos ${MAPSMOBI_MAVEN_REPO_RESOURCE_GLOBAL} \
+&& ${cwd:BIN_AAR_DIR} ${GRADLE_RESOURCE_GLOBAL}/bin/gradle $_GRADLE_FLAGS_VALUE --no-daemon --offline -g $BIN_GRADLE_USER_HOME_DIR assemble${_BUNDLE_BUILD_TYPE} ${env:"ANDROID_HOME=$ANDROID_SDK_RESOURCE_GLOBAL/android_sdk"} ${env:"JAVA_HOME=$JDK_RESOURCE"} ${env:"ANDROID_SDK_HOME=$BINDIR"} \
+&& $FS_TOOLS md $BIN_APK_DIR \
+&& $FS_TOOLS md $BIN_APK_DIR/res \
+&& $COPY_CMD $_MOBILE_TEST_APK_TEMPLATE_DIR/Manifest.xml $BIN_APK_DIR/Manifest.xml \
+&& $YMAKE_PYTHON ${input:"build/scripts/gen_test_apk_gradle_script.py"} \
+${input;hide:EXTRA_INPUTS} \
+--app-id $REALPRJNAME \
+--assets-dirs $_MOBILE_TEST_APK_ASSETS_DIRS_VALUE \
+--java-dirs $_MOBILE_TEST_APK_TEMPLATE_DIR/java \
+--jni-libs-dirs \
+--res-dirs $BIN_APK_DIR/res $_MOBILE_TEST_APK_TEMPLATE_DIR/res $BIN_TMP_DIR/res \
+--manifest Manifest.xml \
+--aars \
+--output-dir $BIN_APK_DIR \
+--bundle-name $REALPRJNAME \
+--bundles $BIN_AAR_DIR/build/outputs/aar/unittest-${tolower:_BUNDLE_BUILD_TYPE}.aar $_MOBILE_TEST_APK_AAR_BUNDLES_VALUE \
+--library-name $_MOBILE_TEST_APK_LIBRARY_NAME \
+--maven-repos ${MAPSMOBI_MAVEN_REPO_RESOURCE_GLOBAL} \
+&& ${cwd:BIN_APK_DIR} ${GRADLE_RESOURCE_GLOBAL}/bin/gradle $_GRADLE_FLAGS_VALUE --no-daemon --offline -g $BIN_GRADLE_USER_HOME_DIR assembleDebug ${env:"ANDROID_HOME=$ANDROID_SDK_RESOURCE_GLOBAL/android_sdk"} ${env:"JAVA_HOME=$JDK_RESOURCE"} ${env:"ANDROID_SDK_HOME=$BINDIR"} \
+&& $COPY_CMD $BIN_APK_DIR/build/outputs/apk/${tolower:_BUNDLE_BUILD_TYPE}/$REALPRJNAME.apk ${OUTPUT}
+
+_MOBILE_TEST_APK_EXTRA_INPUTS_VALUE=
+
+macro _MOBILE_TEST_APK_CMD_IMPL(OUTPUT, EXTRA_INPUTS...) {
+    .CMD=$_MOBILE_TEST_APK_CMDLINE
+}
+
+_MOBILE_TEST_APK_CMD=$_MOBILE_TEST_APK_CMD_IMPL($TARGET $_BUNDLE_EXTRA_INPUTS_VALUE)
+
+LINK_MOBILE_TEST_APK=$LINK_DYN_LIB && $_MOBILE_TEST_APK_CMD
+
+### @usage: MOBILE_TEST_APK() # internal
+module MOBILE_TEST_APK: DLL {
+    .CMD=LINK_MOBILE_TEST_APK
+    .GLOBAL=_AARS _PROGUARD_RULES
+
+    PEERDIR(build/external_resources/android_sdk)
+    PEERDIR(build/external_resources/gradle)
+    PEERDIR(build/platform/java/jdk)
+    PEERDIR($JDK_RESOURCE_PEERDIR)
+
+    SET(MODULE_PREFIX)
+    SET(MODULE_SUFFIX .apk)
+
+    SET(BIN_AAR_DIR $BINDIR/aar)
+    SET(BIN_APK_DIR $BINDIR/apk)
+    SET(BIN_TMP_DIR $BINDIR/tmp)
+    SET(BIN_GRADLE_USER_HOME_DIR $BINDIR/gradle)
+
+    SET(_MOBILE_TEST_APK_LIBRARY_NAME unittests)
+
+    when ($OS_ANDROID == "yes") {
+        when ($ARCH_ARM7 == "yes") {
+            ARCH_NAME=armeabi-v7a
+        }
+        elsewhen ($ARCH_ARM64 == "yes") {
+            ARCH_NAME=arm64-v8a
+        }
+        elsewhen ($ARCH_I386 == "yes") {
+            ARCH_NAME=x86
+        }
+        elsewhen ($ARCH_X86_64 == "yes") {
+            ARCH_NAME=x86_64
+        }
+        otherwise {
+            ARCH_NAME=unsupported
+        }
+    }
+}
+
+
+### @usage: MOBILE_BOOST_TEST_APK() # internal
+module MOBILE_BOOST_TEST_APK: MOBILE_TEST_APK {
+    PEERDIR(devtools/dummy_arcadia/test/test_apk/template)
+    PEERDIR(build/external_resources/mapsmobi_maven_repo)
+    ADD_YTEST($MODULE_PREFIX$REALPRJNAME boost.test)
+
+    MOBILE_TEST_APK_TEMPLATE(${ARCADIA_ROOT}/devtools/dummy_arcadia/test/test_apk/template Manifest.xml java/com/yandex/test/unittests/RunTestsActivity.java res/values/strings.xml)
+}
+
+when ($BT_RELEASE) {
+    _BUNDLE_BUILD_TYPE=Release
+}
+otherwise {
+    _BUNDLE_BUILD_TYPE=Debug
+}
+
+_AAR_EXTRA_INPUTS_VALUE=
+
+_AAR_MANIFEST_VALUE=
+### @usage: AAR_MANIFEST(filename) # internal
+macro AAR_MANIFEST(FILE) {
+    SET(_AAR_MANIFEST_VALUE $FILE)
+}
+
+_AAR_PROGUARD_RULES_VALUE=
+### @usage: AAR_PROGUARD_RULES(filename) # internal
+macro AAR_PROGUARD_RULES(FILE) {
+    SET(_AAR_PROGUARD_RULES_VALUE $FILE)
+}
+
+_AAR_AARS_VALUE=
+### @usage: AAR_AARS(aars...) # internal
+macro AAR_AARS(Aars...) {
+    SET_APPEND(_AAR_AARS_VALUE $Aars)
+}
+
+_AAR_COMPILE_ONLY_AARS_VALUE=
+### @usage: AAR_COMPILE_ONLY_AARS(compile_only_aars...) # internal
+macro AAR_COMPILE_ONLY_AARS(Aars...) {
+    SET_APPEND(_AAR_COMPILE_ONLY_AARS_VALUE $Aars)
+}
+
+
+_AAR_AIDL_DIRS_VALUE=
+### @usage: AAR_AIDL_SRCS(dir filenames...) # internal
+macro AAR_AIDL_SRCS(PREFIX, ABSOLUTE[], FILES...) {
+    SET_APPEND(_AAR_AIDL_DIRS_VALUE $PREFIX)
+    SET_APPEND(_AAR_EXTRA_INPUTS_VALUE ${pre=$PREFIX/:FILES} ${ABSOLUTE})
+}
+
+_AAR_ASSETS_DIRS_VALUE=
+### @usage: AAR_ASSETS_SRCS(dir filenames...) # internal
+macro AAR_ASSETS_SRCS(PREFIX, ABSOLUTE[], FILES...) {
+    SET_APPEND(_AAR_ASSETS_DIRS_VALUE $PREFIX)
+    SET_APPEND(_AAR_EXTRA_INPUTS_VALUE ${pre=$PREFIX/:FILES} ${ABSOLUTE})
+}
+
+_AAR_BUNDLES_VALUE=
+### @usage: AAR_BUNDLES(filenames...) # internal
+macro AAR_BUNDLES(BUNDLES...) {
+    SET_APPEND(_AAR_BUNDLES_VALUE $BUNDLES)
+    SET_APPEND(_AAR_EXTRA_INPUTS_VALUE $BUNDLES)
+}
+
+_AAR_JNI_LIB_DIRS_VALUE=
+### @usage: AAR_JNI_LIBS(dir filenames...) # internal
+macro AAR_JNI_LIBS(PREFIX, ABSOLUTE[], FILES...) {
+    SET_APPEND(_AAR_JNI_LIB_DIRS_VALUE $PREFIX)
+    SET_APPEND(_AAR_EXTRA_INPUTS_VALUE ${pre=$PREFIX/:FILES} ${ABSOLUTE})
+}
+
+_AAR_JAVA_DIRS_VALUE=
+### @usage: AAR_JAVA_SRCS(dir filenames...) # internal
+macro AAR_JAVA_SRCS(PREFIX, ABSOLUTE[], FILES...) {
+    SET_APPEND(_AAR_JAVA_DIRS_VALUE $PREFIX)
+    SET_APPEND(_AAR_EXTRA_INPUTS_VALUE ${pre=$PREFIX/:FILES} ${ABSOLUTE})
+}
+
+_AAR_RES_DIRS_VALUE=
+### @usage: AAR_RES_SRCS(dir filenames...) # internal
+macro AAR_RES_SRCS(PREFIX, ABSOLUTE[], FILES...) {
+    SET_APPEND(_AAR_RES_DIRS_VALUE $PREFIX)
+    SET_APPEND(_AAR_EXTRA_INPUTS_VALUE ${pre=$PREFIX/:FILES} ${ABSOLUTE})
+}
+
+_AAR_LOCAL_MAVEN_REPO_VALUE=
+### @usage: AAR_LOCAL_MAVEN_REPO(repo...)
+macro AAR_LOCAL_MAVEN_REPO(REPO...) {
+    SET_APPEND(_AAR_LOCAL_MAVEN_REPO_VALUE $REPO)
+}
+
+_AAR_GRADLE_SCRIPT_GENERATOR_VALUE=
+### @usage: AAR_GRADLE_SCRIPT_GENERATOR(python_script)
+macro AAR_GRADLE_SCRIPT_GENERATOR(GENERATOR) {
+    SET(_AAR_GRADLE_SCRIPT_GENERATOR_VALUE $GENERATOR)
+}
+
+when ($AAR_GENERATE_DOC) {
+    _AAR_GENERATE_DOC_VALUE=--generate-doc
+    _AAR_COPY_DOC_VALUE=\
+    && ${cwd:BINDIR} $COPY_CMD build/${REALPRJNAME}-javadoc.tar.gz ${output;suf=-javadoc.tar.gz:REALPRJNAME}
+}
+otherwise {
+    _AAR_GENERATE_DOC_VALUE=
+    _AAR_COPY_DOC_VALUE=
+}
+
+when ($AAR_NO_STRIP) {
+    _AAR_NO_STRIP_VALUE=--do-not-strip
+}
+otherwise {
+    _AAR_NO_STRIP_VALUE=
+}
+
+_AAR_CMDLINE=\
+$FS_TOOLS md $BIN_TMP_DIR \
+&& $FS_TOOLS md $BINDIR/.android \
+&& $COPY_CMD $GRADLE_DEBUG_STORE_RESOURCE_GLOBAL/debug.keystore $BINDIR/.android/debug.keystore \
+&& $YMAKE_PYTHON ${input:"build/scripts/extract_asrc.py"} --output $BIN_TMP_DIR --input ${suf=.asrc:PEERS} \
+&& $YMAKE_PYTHON ${input:_AAR_GRADLE_SCRIPT_GENERATOR_VALUE} \
+${input;hide:EXTRA_INPUTS} \
+--aidl-dirs $_AAR_AIDL_DIRS_VALUE $BIN_TMP_DIR/aidl \
+--assets-dirs $_AAR_ASSETS_DIRS_VALUE $BIN_TMP_DIR/assets \
+--java-dirs $_AAR_JAVA_DIRS_VALUE $BIN_TMP_DIR/src \
+--jni-libs-dirs $_AAR_JNI_LIB_DIRS_VALUE $BIN_TMP_DIR/jni_libs \
+--res-dirs $_AAR_RES_DIRS_VALUE $BIN_TMP_DIR/res \
+--manifest ${input:_AAR_MANIFEST_VALUE} \
+--proguard-rules ${input:_AAR_PROGUARD_RULES_VALUE} ${input:_PROGUARD_RULES_GLOBAL} \
+--aars $_AAR_AARS_VALUE $_AARS_GLOBAL \
+--compile-only-aars $_AAR_COMPILE_ONLY_AARS_VALUE \
+--bundles $_AAR_BUNDLES_VALUE \
+--output-dir $BINDIR \
+--bundle-name $REALPRJNAME \
+--peers $PEERS \
+--maven-repos $_AAR_LOCAL_MAVEN_REPO_VALUE \
+$_AAR_GENERATE_DOC_VALUE \
+$_AAR_NO_STRIP_VALUE \
+&& ${cwd:BINDIR} ${GRADLE_RESOURCE_GLOBAL}/bin/gradle $_GRADLE_FLAGS_VALUE --no-daemon --offline -g $BIN_GRADLE_USER_HOME_DIR bundle${_BUNDLE_BUILD_TYPE}Aar ${env:"ANDROID_HOME=$ANDROID_SDK_RESOURCE_GLOBAL/android_sdk"} ${env:"JAVA_HOME=$JDK_RESOURCE"} ${env:"ANDROID_SDK_HOME=$BINDIR"} $VCS_INFO_DISABLE_CACHE__NO_UID__ \
+&& ${cwd:BINDIR} $COPY_CMD build/outputs/aar/${REALPRJNAME}-${tolower:_BUNDLE_BUILD_TYPE}.aar $TARGET \
+$_AAR_COPY_DOC_VALUE \
+&& ${cwd:BINDIR} $COPY_CMD build/${suf=-pom.xml:REALPRJNAME} ${output;suf=-pom.xml:REALPRJNAME} \
+&& ${cwd:BINDIR} $COPY_CMD build/libs/${suf=-sources.jar:REALPRJNAME} ${output;suf=-sources.jar:REALPRJNAME}
+
+macro _AAR_CMD_IMPL(EXTRA_INPUTS...) {
+    .CMD=$_AAR_CMDLINE && $GENERATE_MF
+}
+
+AAR_CMD=$_AAR_CMD_IMPL($_AAR_EXTRA_INPUTS_VALUE)
+
+### @usage: AAR() # internal
+module AAR: _BASE_UNIT {
+    .CMD=AAR_CMD
+    .GLOBAL=_AARS _PROGUARD_RULES
+    .PEERDIR_POLICY=as_build_from
+    .FINAL_TARGET=yes
+
+    SET(MODULE_PREFIX)
+    SET(MODULE_SUFFIX .aar)
+    SET(DONT_RESOLVE_INCLUDES yes)
+    SET(NEED_PLATFORM_PEERDIRS no)
+    NO_PLATFORM()
+
+    PEERDIR(build/external_resources/android_sdk)
+    PEERDIR(build/external_resources/gradle)
+    PEERDIR(build/platform/java/jdk)
+    PEERDIR($JDK_RESOURCE_PEERDIR)
+
+    SET(BIN_TMP_DIR $BINDIR/tmp)
+    SET(BIN_GRADLE_USER_HOME_DIR $BINDIR/gradle)
+}
+
+_SECONDARY_OUTPUT_VALUE=
+
+### @usage: SECONDARY_OUTPUT(filename) # internal
+###
+### The use of this macro is strictly prohibited!!!
+macro SECONDARY_OUTPUT(OUTPUT) {
+    SET(_SECONDARY_OUTPUT_VALUE $OUTPUT)
+}
+
+_AAR_PROXY_LIBRARY_CMD=$LINK_LIB && $COPY_CMD $_SECONDARY_OUTPUT_VALUE ${input;hide:_SECONDARY_OUTPUT_VALUE} ${output:REALPRJNAME.aar}
+
+### @usage: AAR_PROXY_LIBRARY() # internal
+###
+### The use of this module is strictly prohibited!!!
+module AAR_PROXY_LIBRARY: _PROXY_LIBRARY {
+    .ALLOWED=SECONDARY_OUTPUT
+    .CMD=_AAR_PROXY_LIBRARY_CMD
+}
diff --git a/build/conf/project_specific/maps/asrc.conf b/build/conf/project_specific/maps/asrc.conf
new file mode 100644
index 0000000000..dee6354cbc
--- /dev/null
+++ b/build/conf/project_specific/maps/asrc.conf
@@ -0,0 +1,122 @@
+_BUNDLE_DELIM_JAVA=__DELIM_JAVA__
+_BUNDLE_DELIM_RES=__DELIM_RES__
+_BUNDLE_DELIM_ASSETS=__DELIM_ASSETS__
+_BUNDLE_DELIM_AIDL=__DELIM_AIDL__
+
+_BUNDLE_EXTRA_INPUTS_VALUE=
+### @usage: BUNDLE_EXTRA_INPUTS(filenames...) # internal
+macro BUNDLE_EXTRA_INPUTS(INPUTS...) {
+    SET_APPEND(_BUNDLE_EXTRA_INPUTS_VALUE $INPUTS)
+}
+
+_BUNDLE_AIDL_SRCS_VALUE=
+### @usage: BUNDLE_AIDL_SRCS(dirname filenames...) # internal
+macro BUNDLE_AIDL_SRCS(PREFIX, ABSOLUTE[], FILES...) {
+    SET_APPEND(_BUNDLE_AIDL_SRCS_VALUE $_BUNDLE_DELIM_AIDL $PREFIX ${pre=$PREFIX/:FILES} ${ABSOLUTE})
+    BUNDLE_EXTRA_INPUTS(${pre=$PREFIX/:FILES} ${ABSOLUTE})
+}
+
+_BUNDLE_JAVA_SRCS_VALUE=
+### @usage: BUNDLE_JAVA_SRCS(dirname filenames...) # internal
+macro BUNDLE_JAVA_SRCS(PREFIX, ABSOLUTE[], FILES...) {
+    SET_APPEND(_BUNDLE_JAVA_SRCS_VALUE $_BUNDLE_DELIM_JAVA $PREFIX ${pre=$PREFIX/:FILES} ${ABSOLUTE})
+    BUNDLE_EXTRA_INPUTS(${pre=$PREFIX/:FILES} ${ABSOLUTE})
+}
+
+_BUNDLE_RES_SRCS_VALUE=
+### @usage: BUNDLE_RES_SRCS(dirname filenames...) # internal
+macro BUNDLE_RES_SRCS(PREFIX, ABSOLUTE[], FILES...) {
+    SET_APPEND(_BUNDLE_RES_SRCS_VALUE $_BUNDLE_DELIM_RES $PREFIX ${pre=$PREFIX/:FILES} ${ABSOLUTE})
+    BUNDLE_EXTRA_INPUTS(${pre=$PREFIX/:FILES} ${ABSOLUTE})
+}
+
+_BUNDLE_ASSETS_SRCS_VALUE=
+### @usage: BUNDLE_ASSETS_SRCS(dirname filenames...) # internal
+macro BUNDLE_ASSETS_SRCS(PREFIX, ABSOLUTE[], FILES...) {
+    SET_APPEND(_BUNDLE_ASSETS_SRCS_VALUE $_BUNDLE_DELIM_ASSETS $PREFIX ${pre=$PREFIX/:FILES} ${ABSOLUTE})
+    BUNDLE_EXTRA_INPUTS(${pre=$PREFIX/:FILES} ${ABSOLUTE})
+}
+
+_BUNDLE_SRCS_VALUE=$_BUNDLE_AIDL_SRCS_VALUE $_BUNDLE_ASSETS_SRCS_VALUE $_BUNDLE_JAVA_SRCS_VALUE $_BUNDLE_RES_SRCS_VALUE
+
+macro _COMPILE_ASRC_IMPL(EXTRA_INPUTS...) {
+    .CMD=${cwd:ARCADIA_BUILD_ROOT} $YMAKE_PYTHON ${input:"build/scripts/link_asrc.py"} --work $BINDIR --input $_BUNDLE_SRCS_VALUE ${input;hide:EXTRA_INPUTS} --output $TARGET ${kv;hide:"p AC"} $kv;hide:"pc light-blue"} ${kv;hide:"show_out"}
+}
+
+_COMPILE_ASRC=$_COMPILE_ASRC_IMPL($_ASRC_EXTRA_INPUTS_VALUE)
+
+COMPILE_ASRC_MF=$_COMPILE_ASRC && $GENERATE_MF
+
+### @usage: ASRC_LIBRARY() # internal
+module ASRC_LIBRARY: _BASE_UNIT {
+    .CMD=COMPILE_ASRC_MF
+    .ALL_INS_TO_OUT=no
+    .PEERDIR_POLICY=as_include
+    .FINAL_TARGET=no
+    PEERDIR_TAGS=JAVA_PROTO JAVA_IDL
+    MODULE_TYPE=Library
+    SET(MODULE_SUFFIX .asrc)
+    SET(DONT_RESOLVE_INCLUDES yes)
+    SET(NEED_PLATFORM_PEERDIRS no)
+
+    NO_RUNTIME()
+}
+
+macro _MOBILE_LIBRARY_PREREQUISITES_IMPL(OUTPUT, EXTRA_INPUTS...) {
+    .CMD=${cwd:ARCADIA_BUILD_ROOT} $YMAKE_PYTHON ${input:"build/scripts/link_asrc.py"} --work $BINDIR --input $_BUNDLE_SRCS_VALUE --output $OUTPUT ${kv;hide:"p AC"} ${kv;hide:"pc lite-blue"} ${kv;hide:"show_out"}
+}
+
+macro _MOBILE_LIBRARY_PREREQUISITES_CMD(OUTPUT, EXTRA_INPUTS...) {
+    .CMD=${output;hide:OUTPUT} ${input;hide:EXTRA_INPUTS} ${kv;hide:"p AC"} ${kv;hide:"pc lite-blue"} ${kv;hide:"show_out"} $_MOBILE_LIBRARY_PREREQUISITES_IMPL($OUTPUT $EXTRA_INPUTS)
+}
+
+when ($OS_ANDROID == "yes") {
+    LINK_MOBILE_LIB=$LINK_LIB && $_MOBILE_LIBRARY_PREREQUISITES_CMD(${BINDIR}/$MODULE_PREFIX$REALPRJNAME$MODULE_SUFFIX.asrc $_BUNDLE_EXTRA_INPUTS_VALUE)
+}
+otherwise {
+    LINK_MOBILE_LIB=$LINK_LIB
+}
+
+### @usage: MOBILE_LIBRARY() # internal
+module MOBILE_LIBRARY: LIBRARY {
+    .CMD=LINK_MOBILE_LIB
+    DISABLE(NEED_ADD_FAKE_SRC)
+}
+
+_JSRC_PROXY_MOBILE_LIBRARY_CMDLINE=${cwd:ARCADIA_BUILD_ROOT} $YMAKE_PYTHON ${input:"build/scripts/link_asrc.py"} --work $BINDIR --jsrcs ${ext=.jsrc;tags_in=local:PEERS} --input $_BUNDLE_SRCS_VALUE ${input;hide:EXTRA_INPUTS} --output ${output;pre=$MODULE_PREFIX;suf=$MODULE_SUFFIX.asrc:REALPRJNAME} ${kv;hide:"p AC"} ${kv;hide:"pc lite-blue"} ${kv;hide:"show_out"}
+
+macro _JSRC_PROXY_MOBILE_LIBRARY_CMD_IMPL(EXTRA_INPUTS...) {
+    .CMD=$_JSRC_PROXY_MOBILE_LIBRARY_CMDLINE
+}
+
+JSRC_PROXY_MOBILE_LIBRARY_CMD=$LINK_LIB && $_JSRC_PROXY_MOBILE_LIBRARY_CMD_IMPL($_BUNDLE_EXTRA_INPUTS_VALUE)
+
+### @usage: JSRC_PROXY_MOBILE_LIBRARY() # internal
+module JSRC_PROXY_MOBILE_LIBRARY: MOBILE_LIBRARY {
+    .CMD=JSRC_PROXY_MOBILE_LIBRARY_CMD
+    .PEERDIR_POLICY=as_build_from
+    .PROXY=yes
+
+    SET(MODULE_TYPE LIBRARY)
+    DISABLE(NEED_ADD_FAKE_SRC)
+
+    PEERDIR_TAGS=JAVA_PROTO JAVA_IDL
+
+    SET(BIN_TMP_DIR ${BINDIR}/tmp)
+
+    NO_UTIL()
+}
+
+_MOBILE_DLL_PREREQUISITES_CMDLINE=${cwd:ARCADIA_BUILD_ROOT} $YMAKE_PYTHON ${input:"build/scripts/link_asrc.py"} --work $BINDIR --asrcs ${PEERS.arcs} --input $_BUNDLE_SRCS_VALUE ${input;hide:EXTRA_INPUTS} --output ${output;pre=$MODULE_PREFIX;suf=$MODULE_SUFFIX.asrc:REALPRJNAME} ${kv;hide:"p AC"} ${kv;hide:"pc lite-blue"} ${kv;hide:"show_out"}
+
+macro _MOBILE_DLL_PREREQUISITES_CMD(EXTRA_INPUTS...) {
+    .CMD=$_MOBILE_DLL_PREREQUISITES_CMDLINE
+}
+
+when ($OS_ANDROID == "yes") {
+    LINK_MOBILE_DLL=$LINK_DYN_LIB && $_MOBILE_DLL_PREREQUISITES_CMD($_BUNDLE_EXTRA_INPUTS_VALUE)
+}
+otherwise {
+    LINK_MOBILE_DLL=$LINK_DYN_LIB
+}
+
diff --git a/build/conf/project_specific/maps/mapkit.conf b/build/conf/project_specific/maps/mapkit.conf
new file mode 100644
index 0000000000..d64b41f72a
--- /dev/null
+++ b/build/conf/project_specific/maps/mapkit.conf
@@ -0,0 +1,283 @@
+MAPKIT_IDL_INCLUDES=
+macro MAPKIT_ADDINCL(Dirs...) {
+    ADDINCL(${pre=FOR idl :Dirs})
+    SET_APPEND(MAPKIT_IDL_INCLUDES $Dirs)
+}
+
+### @usage: MAPS_IDL_ADDINCL(dirnames...) # internal
+###
+### Warpper for MAPKIT_ADDINCL macro which is used for mobile mapkit build
+macro MAPS_IDL_ADDINCL(Dirs...) {
+    MAPKIT_ADDINCL($Dirs)
+}
+
+### @usage: _MAPKITIDL_PROXY(args...) # internal
+###
+### Proxy macro for MAPKITIDL which adds PEERDIR to YMAKE resources
+macro _MAPKITIDL_PROXY(Args...) {
+    MAPKITIDL($Args)
+    ENABLE(USE_YMAKE_RESOURCE)
+    SET_APPEND(_MAKEFILE_INCLUDE_LIKE_TEXT_DEPS ${ext=idl:Args})
+}
+
+MAPS_IDL_FILTER=
+
+### @usage: MAPS_IDL_SRCS(filenames...) # internal
+###
+### Warpper for MAPKITIDL macro which is used for mobile mapkit build
+macro MAPS_IDL_SRCS(Srcs...) {
+    _MAPKITIDL_PROXY($Srcs ${MAPS_IDL_FILTER})
+}
+
+### @usage: MAPS_IDL_GLOBAL_SRCS(filenames...) # internal
+###
+### Warpper for MAPKITIDL macro which is used for mobile mapkit build
+macro MAPS_IDL_GLOBAL_SRCS(Srcs...) {
+    _MAPKITIDL_PROXY(GLOBAL_OUTPUTS $Srcs ${MAPS_IDL_FILTER})
+}
+
+### @usage: MAPSMOBI_SRCS(filenames...) # internal
+###
+### Make all source files listed as GLOBAL or not (depending on the value of
+### MAPSMOBI_USE_SRCS_GLOBAL). Be careful since the value of
+### MAPSMOBI_USE_SRCS_GLOBAL matters! If the value of this variable is equal to
+### GLOBAL then call to MAPSMOBI_SRCS() macro behaves like call to
+### GLOBAL_SRCS() macro otherwise the value of MAPSMOBI_USE_SRCS_GLOBAL is
+### treated as a file name and a call to MAPSMOBI_SRCS() macro behaves like a
+### call to SRCS() macro with additional argument which is the value of
+### MAPSMOBI_USE_SRCS_GLOBAL variable
+macro MAPSMOBI_SRCS(FILES...) {
+    ALL_SRCS(${MAPSMOBI_USE_SRCS_GLOBAL} $FILES)
+}
+
+### @usage: EXPORT_MAPKIT_PROTO() # internal deprecated
+###
+### This macro is a temporary one and should be changed to EXPORT_YMAPS_PROTO
+### when transition of mapsmobi to arcadia is finished
+macro EXPORT_MAPKIT_PROTO() {
+    PROTO_NAMESPACE(GLOBAL maps/mapsmobi/external/proto)
+}
+
+BEFORE_PEERS=
+AFTER_PEERS=
+when ($MAPKIT_WHOLE_ARCHIVE == "yes") {
+    when($OS_LINUX) {
+        BEFORE_PEERS += $START_WHOLE_ARCHIVE_VALUE
+        AFTER_PEERS += $END_WHOLE_ARCHIVE_VALUE
+    }
+    elsewhen($OS_DARWIN) {
+        LDFLAGS+=-Wl,-all_load
+    }
+}
+
+### @usage: MAPKIT_ENABLE_WHOLE_ARCHIVE() # internal deprecated
+###
+### This macro is strictly prohibited to use outside of mapsmobi project
+macro MAPKIT_ENABLE_WHOLE_ARCHIVE() {
+    ENABLE(MAPKIT_WHOLE_ARCHIVE)
+}
+
+### @usage: MAPS_IDL_LIBRARY()
+###
+### Definition of multimodule that builds various variants of libraries.
+### The particular variant is selected based on where PEERDIR to IDL_LIBRARY comes from.
+### Now supported 2 variants: C++, Java
+### Java version is not really a library but an archive of generated Java sources
+multimodule MAPS_IDL_LIBRARY {
+    module CPP_IDL: LIBRARY {
+        .ALIASES=SRCS=MAPS_IDL_SRCS GLOBAL_SRCS=MAPS_IDL_GLOBAL_SRCS ADDINCL=MAPKIT_ADDINCL MAPSMOBI_SRCS=MAPS_IDL_SRCS
+        SET(PEERDIR_TAGS CPP_IDL CPP_PROTO __EMPTY__)
+        SET(MAPS_IDL_FILTER)
+        ENABLE(CPP_IDL)
+        NO_UTIL()
+
+        when ($OS_IOS == "yes") {
+            CFLAGS+=-fobjc-arc
+        }
+    }
+
+    module JAVA_IDL: JSRC_LIBRARY {
+        .ALIASES=SRCS=MAPS_IDL_SRCS GLOBAL_SRCS=MAPS_IDL_SRCS ADDINCL=MAPKIT_ADDINCL MAPSMOBI_SRCS=MAPS_IDL_SRCS
+        .IGNORED=CPP_ADDINCL
+        SET(PEERDIR_TAGS JAVA_IDL JAVA_PROTO)
+        SET(MAPS_IDL_FILTER FILTER .java)
+        ENABLE(JAVA_IDL)
+    }
+}
+
+### @usage: MAPSMOBI_COLLECT_ASSETS_FILES(varname [dir]) # internal
+###
+### This macro is strictly prohibited to use outside of mapsmobi project
+macro MAPSMOBI_COLLECT_ASSETS_FILES(VAR, DIR="") {
+    _GLOB($VAR ${suf=/:DIR}**/*)
+    RESTRICT_PATH(maps/mobile maps/automotive MSG This macro is for use in mapsmobi projects)
+}
+
+### @usage: MAPSMOBI_COLLECT_AIDL_FILES(varname [dir]) # internal
+###
+### This macro is strictly prohibited to use outside of mapsmobi project
+macro MAPSMOBI_COLLECT_AIDL_FILES(VAR, DIR="") {
+    _GLOB($VAR ${suf=/:DIR}**/*.aidl)
+    RESTRICT_PATH(maps/mobile maps/automotive MSG This macro is for use in mapsmobi projects)
+}
+
+### @usage: MAPSMOBI_COLLECT_JAVA_FILES(varname [dir]) # internal
+###
+### This macro is strictly prohibited to use outside of mapsmobi project
+macro MAPSMOBI_COLLECT_JAVA_FILES(VAR, DIR="") {
+    _GLOB($VAR ${suf=/:DIR}**/*.java)
+    RESTRICT_PATH(maps/mobile maps/automotive MSG This macro is for use in mapsmobi projects)
+}
+
+### @usage: MAPSMOBI_COLLECT_JNI_LIBS_FILES(varname [dir]) # internal
+###
+### This macro is strictly prohibited to use outside of mapsmobi project
+macro MAPSMOBI_COLLECT_JNI_LIBS_FILES(VAR, DIR="") {
+    _GLOB($VAR ${suf=/:DIR}**/*.so)
+    RESTRICT_PATH(maps/mobile maps/automotive MSG This macro is for use in mapsmobi projects)
+}
+
+### @usage: MAPSMOBI_COLLECT_RES_FILES(varname [dir]) # internal
+###
+### This macro is strictly prohibited to use outside of mapsmobi project
+macro MAPSMOBI_COLLECT_RES_FILES(VAR, DIR="") {
+    _GLOB($VAR ${suf=/:DIR}**/*.(xml|png))
+    RESTRICT_PATH(maps/mobile maps/automotive MSG This macro is for use in mapsmobi projects)
+}
+
+### @usage: MAPSMOBI_COLLECT_TPL_FILES(varname [dir]) # internal
+###
+### This macro is strictly prohibited to use outside of mapsmobi project
+macro MAPSMOBI_COLLECT_TPL_FILES(VAR, DIR="") {
+    _GLOB($VAR ${suf=/:DIR}**/*.tpl)
+    RESTRICT_PATH(tools/idl MSG This macro is for use in mapsmobi projects)
+}
+
+### @usage: MAPS_GARDEN_COLLECT_MODULE_TRAITS(varnamei dir) # internal
+###
+### This macro is strictly prohibited to use outside of maps/garden project
+macro MAPS_GARDEN_COLLECT_MODULE_TRAITS(VAR, DIR) {
+    _GLOB($VAR $DIR/*/module_traits.json)
+    RESTRICT_PATH(maps/garden/sdk/module_traits/tests/module_traits_bundle MSG This macro is for use in maps/garden project)
+}
+
+# mapsmobi build configuration
+
+MAPSMOBI_FAKEID=${FAKEID}_r8609790
+MAPSMOBI_BUILD=
+YANDEX_EXPORT=
+YRT_EXPORT=
+MAPSMOBI_CPP_PROTO_PLUGINS=
+STATIC_STL=
+EXPORT_ALL_SYMBOLS=
+when ($MAPSMOBI_BUILD_HOST || $MAPSMOBI_BUILD_TARGET) {
+    MAPSMOBI_BUILD=yes
+}
+when ($MAPSMOBI_BUILD) {
+    CFLAGS+=-DMOBILE_BUILD ${hide:MAPSMOBI_FAKEID}
+    MAPKIT_BASE_PROTO_PACKAGE=yandex.maps.proto
+    MAPKIT_PROTO_ROOT=maps/doc/proto
+    MAPKIT_IDL_FRAMEWORK=maps/mobile/libs/idl_frameworks
+}
+when ($MAPSMOBI_BUILD_TARGET) {
+    ALLOCATOR=FAKE
+    USE_VANILLA_PROTOC=yes
+    PROTOBUF_LITE=yes
+    CPP_PROTO_PLUGINS=lite${pre=,:MAPSMOBI_CPP_PROTO_PLUGINS}:
+    when ($OPENSOURCE != "yes") {
+        SYSINCL+=build/yandex_specific/sysincl/mapsmobi.yml
+    }
+
+    CFLAGS+=-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=1 -DBOOST_CB_DISABLE_DEBUG -DBOOST_COROUTINES_NO_DEPRECATION_WARNING -DYANDEX_EXPORT=${YANDEX_EXPORT} -DYRT_EXPORT=${YRT_EXPORT}
+}
+when ($MAPSMOBI_BUILD_TARGET && $OS_ANDROID) {
+    JDK_VERSION=8
+    MAPSMOBI_CPP_PROTO_PLUGINS="dllexport_decl=YANDEX_EXPORT"
+    YANDEX_EXPORT=__attribute__((visibility(\"default\")))
+    CFLAGS+=-fvisibility=hidden
+
+    when ($MAPS_MOBILE_EXPORT_CPP_API) {
+        LDFLAGS+=-lc++_shared
+        CFLAGS+=-DZLIB_DLL
+        CFLAGS+=-DPROTOBUF_USE_DLLS -DLIBPROTOBUF_EXPORTS
+        CFLAGS+=-DPNG_IMPEXP=${YANDEX_EXPORT}
+        CFLAGS+=-DBOOST_ALL_DYN_LINK
+        CFLAGS+=-DBOOST_SYMBOL_EXPORT=${YANDEX_EXPORT}
+        DYNAMIC_BOOST=yes
+    }
+    otherwise {
+        STATIC_STL=yes
+        YANDEX_EXPORT=
+        CFLAGS+=-DBOOST_SYMBOL_EXPORT=
+        CFLAGS+=-DBOOST_SYMBOL_VISIBLE=
+        LDFLAGS+=-lc++_static -Wl,--exclude-libs,ALL -static-libstdc++
+        USE_GLOBAL_CMD=no
+    }
+
+    when ($EXPORT_ALL_SYMBOLS) {
+        CFLAGS+=-fvisibility=default
+    }
+
+    when ($NO_DEBUGINFO != "yes" && $REDUCED_DEBUGINFO) {
+        CFLAGS+=-g1
+    }
+
+    CFLAGS+=-DANDROID -fpic -ffunction-sections -funwind-tables -fstack-protector -no-canonical-prefixes -Wa,--noexecstack
+    CFLAGS+=-Qunused-arguments -Wno-unused-function -Wno-pessimizing-move -Wno-missing-field-initializers -Wno-missing-braces -Wno-unused-parameter -Wno-vexing-parse -Wno-sign-compare -Wno-deprecated-declarations
+
+    LDFLAGS+=-lc -lm -llog -Bsymbolic -Wl,-z,noexecstack -Qunused-arguments -Wl,-z,relro -Wl,-z,now -Wl,--no-undefined
+
+    when ($BT_RELEASE || $BT_RELWITHDEBINFO) {
+        CFLAGS+=-fomit-frame-pointer -fvisibility-inlines-hidden -ffunction-sections -fdata-sections
+        LDFLAGS+=-Wl,--gc-sections -Wl,--build-id
+    }
+
+    when ($ARCH_ARM7) {
+        CFLAGS+=-mfloat-abi=softfp
+        #Android clang overaligns some float types which causes NEON programs to fail on old Android versions. So we disable NEON.
+        #See https://github.com/android/ndk/issues/640 for more information
+        CFLAGS+=-mfpu=vfpv3-d16
+    }
+    elsewhen ($ARCH_ARM64) {
+    }
+    elsewhen ($ARCH_I386) {
+        CFLAGS+=-fstrict-aliasing -mstackrealign -DTLS_STACK_PROTECTOR
+    }
+    elsewhen ($ARCH_X86_64) {
+        CFLAGS+=-fstrict-aliasing -mstackrealign -march=x86-64 -msse4.2 -mpopcnt -m64 -DTLS_STACK_PROTECTOR
+    }
+    otherwise {
+        PEERDIR+=__unsupported_architecture_for_android__
+    }
+}
+when ($MAPSMOBI_BUILD_TARGET && $OS_DARWIN) {
+    QT_REQUIRED=yes
+    LDFLAGS+=-lc++
+    CFLAGS+=-DBOOST_SYMBOL_EXPORT=
+    CFLAGS+=-DBOOST_SYMBOL_VISIBLE=
+}
+when ($MAPSMOBI_BUILD_TARGET && $OS_IOS) {
+    CFLAGS+=-DIOS -stdlib=libc++ -fvisibility=hidden
+    CFLAGS+=-DBOOST_SYMBOL_EXPORT=
+    CFLAGS+=-DBOOST_SYMBOL_VISIBLE=
+    when ($MAPS_MOBILE_EXPORT_OBJC_API) {
+        YRT_EXPORT=__attribute__((visibility(\"default\")))
+    }
+}
+when ($MAPSMOBI_BUILD_TARGET && $OS_LINUX) {
+    when ($NO_GRAPHICS != "yes") {
+        QT_REQUIRED=yes
+        OPENGL_REQUIRED=yes
+    }
+    OS_SDK=ubuntu-16
+    PIC=yes
+    LDFLAGS+=-lstdc++ -lgcc_s
+    CFLAGS+=-DBOOST_SYMBOL_EXPORT=
+    CFLAGS+=-DBOOST_SYMBOL_VISIBLE=
+}
+when ($MAPSMOBI_BUILD_TARGET && $OS_YOCTO) {
+    QT_REQUIRED=yes
+    PIC=yes
+    CFLAGS+=-DBOOST_SYMBOL_EXPORT=
+    CFLAGS+=-DBOOST_SYMBOL_VISIBLE=
+}
diff --git a/build/conf/project_specific/maps/sproto.conf b/build/conf/project_specific/maps/sproto.conf
new file mode 100644
index 0000000000..1a62563fc1
--- /dev/null
+++ b/build/conf/project_specific/maps/sproto.conf
@@ -0,0 +1,21 @@
+### @usage: EXPORT_YMAPS_PROTO() # maps-specific
+###
+### Maps-specific .proto handling: IMPORT_YMAPS_PROTO() + maps protobuf namespace.
+macro EXPORT_YMAPS_PROTO() {
+    PROTO_NAMESPACE(GLOBAL maps/doc/proto)
+}
+
+macro _YMAPS_GENERATE_SPROTO_HEADER(File) {
+    .CMD=${cwd;rootdir;input:File} ${tool:"maps/libs/sproto/sprotoc"} -I=./$PROTO_NAMESPACE -I=$ARCADIA_ROOT/$PROTO_NAMESPACE -I=$ARCADIA_BUILD_ROOT -I=$PROTOBUF_PATH --sproto_out=$ARCADIA_BUILD_ROOT/$PROTO_NAMESPACE ${input;rootrel:File} ${output;hide;norel;nopath;noext:File.sproto.h} ${kv;hide:"p PB"} ${kv;hide:"pc yellow"}
+    .PEERDIR=maps/libs/sproto
+}
+
+### @usage: YMAPS_SPROTO(ProtoFiles...) # maps-specific
+###
+### Maps-specific .proto handling: generate .sproto.h files using maps/libs/sproto/sprotoc.
+macro YMAPS_SPROTO(FILES...) {
+    SET(PROTO_HEADER_EXTS .pb.h .sproto.h)
+    foreach (FILE : $FILES) {
+        [.proto]=$_YMAPS_GENERATE_SPROTO_HEADER($FILE)
+    }
+}
diff --git a/build/conf/project_specific/other.conf b/build/conf/project_specific/other.conf
new file mode 100644
index 0000000000..602ed5cfa3
--- /dev/null
+++ b/build/conf/project_specific/other.conf
@@ -0,0 +1,11 @@
+# Catboost
+BUILD_CATBOOST_SCRIPT=build/scripts/build_catboost.py
+### @usage: BUILD_CATBOOST(cbmodel cbname)
+###
+### Generate catboost model and access code.
+### cbmodel - CatBoost model file name (*.cmb).
+### cbname - name for a variable (of NCatboostCalcer::TCatboostCalcer type) to be available in CPP code.
+### CatBoost specific macro.
+macro BUILD_CATBOOST(CbModel, CbName) {
+    .CMD=$YMAKE_PYTHON ${input:BUILD_CATBOOST_SCRIPT} build_cb_f $ARCADIA_ROOT $ARCH_TOOL ${input:CbModel} $CbName ${output;chksum;pre=cb.:CbName.cpp} ${output;hide;pre=CB_External_;suf=.rodata:CbName} ${output_include;hide:"kernel/catboost/catboost_calcer.h"} ${kv;hide:"p CB"} ${kv;hide:"pc yellow"}
+}
diff --git a/build/conf/project_specific/yql_udf.conf b/build/conf/project_specific/yql_udf.conf
new file mode 100644
index 0000000000..badaf36687
--- /dev/null
+++ b/build/conf/project_specific/yql_udf.conf
@@ -0,0 +1,261 @@
+when ($SANITIZER_TYPE || $USE_ARCADIA_PYTHON == "no" || $UDF_NO_PROBE == "yes" || $MUSL == "yes" || $TIDY == "yes") {
+    YQL_UDF_LINK_CMD=$LINK_DYN_LIB
+    YQL_UDF_LINK_PRG_CMD=$LINK_EXEC_DYN_LIB
+}
+otherwise {
+    YQL_UDF_LINK_CMD=$LINK_DYN_LIB && ${tool:"yql/tools/udf_probe"} $TARGET ${kv;hide:"p UD"}
+    YQL_UDF_LINK_PRG_CMD=$LINK_EXEC_DYN_LIB && ${tool:"yql/tools/udf_probe"} $TARGET ${kv;hide:"p UD"}
+}
+
+### @usage: UDF_BASE(name [EXPORTS symlist_file] [PREFIX prefix]) #internal
+###
+### The base logic of all UDF extension modules (User-Defined Functions).
+### Processing EXPORTS and PREFIX is the same as for DLL.
+###
+### https://wiki.yandex-team.ru/robot/manual/kiwi/userguide/#polzovatelskiefunkciiudftriggerykwcalc
+module UDF_BASE: DLL_UNIT  {
+    PRINT_MODULE_TYPE(UDF $REALPRJNAME)
+
+    when ($MSVC != "yes" && $DARWIN != "yes") {
+        LDFLAGS+= -Wl,-Bsymbolic
+    }
+}
+
+### @usage: UDF(name [EXPORTS symlist_file] [PREFIX prefix]) # deprecated
+###
+### The KiWi UDF module.
+### Processing EXPORTS and PREFIX is the same as for DLL.
+###
+### https://wiki.yandex-team.ru/robot/manual/kiwi/userguide/#polzovatelskiefunkciiudftriggerykwcalc
+module UDF: UDF_BASE {
+    PEERDIR(yweb/robot/kiwi/kwcalc/udflib)
+}
+
+### @usage: UDF_LIB([name]) # deprecated
+###
+### The LIBRARY module for KiWi UDF, so has default PEERDIR to yweb/robot/kiwi/kwcalc/udflib.
+module UDF_LIB: LIBRARY {
+    PEERDIR(yweb/robot/kiwi/kwcalc/udflib)
+}
+
+UDF_NO_PROBE="no"
+### @usage: UDF_NO_PROBE()
+###
+### Disable UDF import check at build stage
+macro UDF_NO_PROBE() {
+    ENABLE(UDF_NO_PROBE)
+}
+
+### @usage: YQL_UDF_TEST([name])
+###
+### The module to test YQL C++ UDF.
+###
+### Documentation: https://yql.yandex-team.ru/docs/yt/libraries/testing/
+### Documentation about the Arcadia test system: https://wiki.yandex-team.ru/yatool/test/
+module YQL_UDF_TEST: PY2TEST {
+    PEERDIR(yql/library/udf_test)
+    PEERDIR(yt/python/client_lite)
+
+    DEPENDS(yql/tools/astdiff)
+    DEPENDS(yql/tools/udf_resolver)
+    DEPENDS(yql/tools/yqlrun)
+    DATA(arcadia/ydb/library/yql/mount)
+    DATA(arcadia/yql/cfg/tests)
+}
+
+### @usage: _ADD_YQL_UDF_DEPS()
+###
+### Add all needed PEERDIRs to a YQL_UDF.
+###
+### https://yql.yandex-team.ru/docs/yt/udf/cpp/
+macro _ADD_YQL_UDF_DEPS() {
+    PEERDIR(ydb/library/yql/public/udf)
+    PEERDIR(ydb/library/yql/public/udf/support)
+}
+
+### @usage: _MAKE_YQL_UDF()
+###
+### Make module definition an YQL UDF: add all needed dependencies, properties and flags
+###
+### https://yql.yandex-team.ru/docs/yt/udf/cpp/
+macro _MAKE_YQL_UDF() {
+    _ADD_YQL_UDF_DEPS()
+    SET_APPEND(USER_CXXFLAGS -DBUILD_UDF)
+    # For Windows using declspecs
+    DEFAULT(YQL_UDF_EXPORT ${ARCADIA_ROOT}/ydb/library/yql/public/udf/udfs_exports.exports)
+
+    when ($WINDOWS == "yes") {
+        YQL_UDF_EXPORT=
+    }
+
+    SET(EXPORTS_FILE $YQL_UDF_EXPORT)
+}
+
+### @usage: YQL_UDF_MODULE(name)
+###
+### The extension module for YQL with C++ UDF (User Defined Function YQL)
+###
+### https://yql.yandex-team.ru/docs/yt/udf/cpp/
+module YQL_UDF_MODULE: UDF_BASE {
+    .CMD=YQL_UDF_LINK_CMD
+    _MAKE_YQL_UDF()
+    PROVIDES(YqlServicePolicy)
+}
+
+module _YQL_UDF_PROGRAM_BASE: SO_PROGRAM {
+    .CMD=YQL_UDF_LINK_PRG_CMD
+    _MAKE_YQL_UDF()
+}
+
+### @usage: YQL_UDF(name)
+###
+### User-defined function for YQL
+###
+### Multimodule which is YQL_UDF_MODULE when built directly or referred by BUNDLE and DEPENDS macros.
+### If used by PEERDIRs it is usual static LIBRARY with default YQL dependencies, allowing code reuse between UDFs.
+###
+### @see: [YQL_UDF_MODULE()](#module_YQL_UDF_MODULE)
+multimodule YQL_UDF {
+    module YQL_UDF_SHARED: YQL_UDF_MODULE {
+        NO_CLANG_TIDY()
+    }
+    module YQL_UDF_STATIC: _DLL_COMPATIBLE_LIBRARY {
+        .ALIASES=SRCS=GLOBAL_SRCS
+        OBJ_SUF=.udfs
+        _ADD_YQL_UDF_DEPS()
+        # disable credits generation for static library
+        SET(CREDITS_FLAGS)
+        when ($MSVC == "yes" || $CYGWIN == "yes") {
+            MODULE_SUFFIX=.static.lib
+        }
+    }
+}
+
+### @usage: YQL_ABI_VERSION(major minor release))
+###
+### Specifying the supported ABI for YQL_UDF.
+###
+### @see: [YQL_UDF()](#multimodule_YQL_UDF)
+macro YQL_ABI_VERSION(Major, Minor, Patch) {
+    YQL_ABI_FLAGS=-DUDF_ABI_VERSION_MAJOR=$Major -DUDF_ABI_VERSION_MINOR=$Minor -DUDF_ABI_VERSION_PATCH=$Patch
+    SET_APPEND(USER_CXXFLAGS $YQL_ABI_FLAGS)
+}
+
+### @usage: YQL_LAST_ABI_VERSION()
+###
+### Use the last ABI for YQL_UDF
+###
+macro YQL_LAST_ABI_VERSION() {
+    YQL_ABI_FLAGS=-DUSE_CURRENT_UDF_ABI_VERSION
+    SET_APPEND(USER_CXXFLAGS $YQL_ABI_FLAGS)
+}
+
+### @usage: YQL_PYTHON_UDF(name)
+###
+### Definition of the extension module for YQL with Python 2.x UDF (User Defined Function for YQL).
+### Unlike YQL_UDF this is plain DLL module, so PEERDIRs to it are not allowed.
+###
+### https://yql.yandex-team.ru/docs/yt/udf/python/
+module YQL_PYTHON_UDF: YQL_UDF_MODULE {
+    .IGNORED=USE_PYTHON2
+    .RESTRICTED=PYTHON3_ADDINCL USE_PYTHON3 PYTHON2_ADDINCL
+
+    USE_PYTHON2()
+    _ARCADIA_PYTHON_ADDINCL()
+    PEERDIR(build/platform/python/ldflags)
+    PEERDIR(library/python/type_info)
+
+    DEFAULT(YQL_PYTHON_UDF_EXPORT ${ARCADIA_ROOT}/yql/udfs/common/python/python_udf/python_udfs_exports.exports)
+
+    when ($WINDOWS == "yes") {
+        YQL_PYTHON_UDF_EXPORT=
+    }
+
+    ### FIXME: XXX the statement below uncoditionally set EXPORTS_FILE (due to incorrect behaviour of old ConfReader
+    ###when ($USE_ARCADIA_PYTHON == "yes") SET(EXPORTS_FILE $YQL_PYTHON_UDF_EXPORT)
+    SET(EXPORTS_FILE $YQL_PYTHON_UDF_EXPORT)
+}
+
+### @usage: YQL_PYTHON_UDF_PROGRAM(name)
+###
+### Definition of the extension module for YQL with Python 2.x UDF (User Defined Function for YQL).
+### Unlike YQL_UDF this is plain DLL module, so PEERDIRs to it are not allowed.
+###
+### https://yql.yandex-team.ru/docs/yt/udf/python/
+module YQL_PYTHON_UDF_PROGRAM: _YQL_UDF_PROGRAM_BASE {
+    .IGNORED=USE_PYTHON2
+    .RESTRICTED=PYTHON3_ADDINCL USE_PYTHON3 PYTHON2_ADDINCL
+    USE_PYTHON2()
+    _ARCADIA_PYTHON_ADDINCL()
+    PEERDIR(build/platform/python/ldflags)
+    PEERDIR(library/python/type_info)
+
+    DEFAULT(YQL_PYTHON_UDF_EXPORT ${ARCADIA_ROOT}/yql/udfs/common/python/python_udf/python_udfs_exports.exports)
+
+    when ($WINDOWS == "yes") {
+        YQL_PYTHON_UDF_EXPORT=
+    }
+
+    ### FIXME: XXX the statement below uncoditionally set EXPORTS_FILE (due to incorrect behaviour of old ConfReader
+    ###when ($USE_ARCADIA_PYTHON == "yes") SET(EXPORTS_FILE $YQL_PYTHON_UDF_EXPORT)
+    SET(EXPORTS_FILE $YQL_PYTHON_UDF_EXPORT)
+}
+
+### @usage: YQL_PYTHON3_UDF(name)
+###
+### The extension module for YQL with Python 3.x UDF (User Defined Function for YQL).
+### Unlike YQL_UDF this is plain DLL module, so PEERDIRs to it are not allowed.
+###
+### Documentation: https://yql.yandex-team.ru/docs/yt/udf/python/
+module YQL_PYTHON3_UDF: YQL_UDF_MODULE {
+    .RESTRICTED=PYTHON2_ADDINCL PYTHON3_ADDINCL USE_PYTHON2 USE_PYTHON3
+    _ARCADIA_PYTHON3_ADDINCL()
+    PEERDIR(build/platform/python/ldflags)
+    PEERDIR(library/python/type_info)
+
+    DEFAULT(YQL_PYTHON_UDF_EXPORT ${ARCADIA_ROOT}/yql/udfs/common/python/python_udf/python_udfs_exports.exports)
+
+    when ($WINDOWS == "yes") {
+        YQL_PYTHON_UDF_EXPORT=
+    }
+
+    ### FIXME: XXX the statement below uncoditionally set EXPORTS_FILE (due to incorrect behaviour of old ConfReader
+    ###when ($USE_ARCADIA_PYTHON == "yes") SET(EXPORTS_FILE $YQL_PYTHON_UDF_EXPORT)
+    SET(EXPORTS_FILE $YQL_PYTHON_UDF_EXPORT)
+}
+
+macro _MAKE_YQL_PYTHON_UDF_TEST() {
+    PEERDIR(library/python/pytest)
+    DEPENDS(yql/tools/run_python_udf)
+    SETUP_PYTEST_BIN(RUNNER_BIN $(BUILD_ROOT)/yql/tools/run_python_udf/run_python_udf)
+}
+
+### @usage: YQL_PYTHON_UDF_TEST(name)
+###
+### The Python test for Python YQL UDF (Python User Defined Function for YQL). The code should be a proper YQL_PYTHON_UDF.
+###
+### This module will basically build itself as UDF and run as test using yql/tools/run_python_udf/run_python_udf tool.
+###
+### Documentation: https://yql.yandex-team.ru/docs/yt/udf/python/
+###
+### @example: https://a.yandex-team.ru/arc/trunk/arcadia/yql/udfs/test/simple/ya.make
+###
+### @see: [YQL_PYTHON_UDF()](#module_YQL_PYTHON_UDF)
+module YQL_PYTHON_UDF_TEST: YQL_PYTHON_UDF {
+    _MAKE_YQL_PYTHON_UDF_TEST()
+    SET_APPEND(_MAKEFILE_INCLUDE_LIKE_DEPS canondata/result.json)
+}
+
+### @usage: YQL_PYTHON3_UDF_TEST(name)
+###
+### The Python test for Python 3.x YQL UDF (User Defined Function for YQL). The code should be a proper YQL_PYTHON3_UDF.
+###
+### This module will basically build itself as UDF and run as test using yql/tools/run_python_udf/run_python_udf tool.
+###
+### Documentation: https://yql.yandex-team.ru/docs/yt/udf/python/
+###
+### @see: [YQL_PYTHON3_UDF()](#module_YQL_PYTHON3_UDF)
+module YQL_PYTHON3_UDF_TEST: YQL_PYTHON3_UDF {
+    _MAKE_YQL_PYTHON_UDF_TEST()
+    SET_APPEND(_MAKEFILE_INCLUDE_LIKE_DEPS canondata/result.json)
+}
diff --git a/build/conf/rules.conf b/build/conf/rules.conf
new file mode 100644
index 0000000000..51bf1baa52
--- /dev/null
+++ b/build/conf/rules.conf
@@ -0,0 +1,43 @@
+PEERDIRS_RULES_PATH=\
+    build/rules/junk.policy \
+    build/rules/go/contrib.policy \
+    build/rules/go/vendor.policy \
+    build/rules/contrib_deprecated.policy \
+    build/rules/contrib_python.policy \
+    build/rules/contrib_restricted.policy \
+    build/rules/contrib_deps.policy \
+    build/rules/library_deps.policy \
+    build/rules/library_deprecated.policy \
+    build/rules/passport.policy \
+    build/rules/yt.policy \
+    build/rules/catboost.policy \
+    build/rules/maps/maps.policy \
+    build/rules/taxi.policy \
+    build/rules/yp.policy \
+    build/rules/alice.policy \
+    build/rules/kikimr.policy \
+    build/rules/yadi.policy
+
+CHECK_INTERNAL=yes
+INTERNAL_EXCEPTIONS=\
+    contrib \
+    search/begemot/rules/internal \
+    mssngr/router/lib/protos/internal \
+    mssngr/router/lib/registry/method/internal \
+    cv/imageproc/ocr/api/mobile_c/internal \
+    kernel/ugc/security/lib/internal \
+    maps/mobile/libs/mapkit/internal
+
+_BLACKLISTS=
+when ($DISABLE_BLACKLIST == "yes") {
+    _BLACKLISTS=
+}
+elsewhen ($CUSTOM_BLACKLIST != "") {
+    _BLACKLISTS=$CUSTOM_BLACKLIST
+}
+elsewhen ($AUTOCHECK == "yes" || $TEST_BLACKLIST_AUTOCHECK == "yes") {
+    _BLACKLISTS+=build/rules/autocheck.blacklist
+}
+otherwise {
+    _BLACKLISTS+=build/rules/local.blacklist
+}
diff --git a/build/conf/settings.conf b/build/conf/settings.conf
new file mode 100644
index 0000000000..4329f3233a
--- /dev/null
+++ b/build/conf/settings.conf
@@ -0,0 +1,155 @@
+GLOBAL_SRCS_IN_RESULTS=yes
+JSON_CACHE_IS_ATTACHED=yes
+USE_ADDINCL_WITHOUT_FOR_AS_ADDINCL_FOR_C=yes
+LANGS_REQUIRE_BUILD_AND_SRC_ROOTS=c asm cython proto flatc swig ydl nlg
+
+# NOTE! Only foldable vars should be listed here
+_FOLDABLE_VARS_=\
+    CL_WRAPPER \
+    END_WHOLE_ARCHIVE_VALUE \
+    LD_SDK_VERSION \
+    LD_STRIP_FLAG \
+    LIB_WRAPPER \
+    LINK_EXE_FLAGS_DEBUG \
+    LINK_EXE_FLAGS_RELEASE \
+    LINK_IMPLIB \
+    LINK_LIB_FLAGS \
+    LINK_STDLIBS \
+    LINK_WRAPPER \
+    LINK_WRAPPER_DYNLIB \
+    ML_WRAPPER \
+    START_WHOLE_ARCHIVE_VALUE \
+    _CFLAGS_ARCH_I386 \
+    _CFLAGS_UCRT_VC_INCLUDES \
+    _COMPILER_TIME_TRACE_FLAGS \
+    _COMPILER_TIME_TRACE_GRANULARITY \
+    _COMPILER_TIME_TRACE_POSTPROCESS \
+    _CPP_ARGS \
+    _CROSS_SUFFIX \
+    _CXX_DEFINES \
+    _CXX_FLAGS \
+    _CXX_STD \
+    _CXX_WARNINGS \
+    _CXX_WARNINGS_CLANG \
+    _CXX_WARNINGS_CLANG_CL \
+    _CXX_WARNINGS_CLANG_CL_2019 \
+    _CXX_WARNINGS_CLANG_CL_2019_IDE_MSVS \
+    _CXX_WARNINGS_GCC_7 \
+    _C_ARGS \
+    _C_CPP_KV_STYLE \
+    _C_DEFINES \
+    _C_DEFINES_ANDROID \
+    _C_DEFINES_ANDROID_OTHERWISE \
+    _C_DEFINES_CLANG_LINUX_X86_64 \
+    _C_DEFINES_GNU_SOURCE \
+    _C_DEFINES_IOS \
+    _C_DEFINES_NDEBUG \
+    _C_DEFINES_WITH_VALGRIND \
+    _C_FLAGS \
+    _C_FLAGS_ARCH \
+    _C_FLAGS_ARCH_OPT \
+    _C_FLAGS_FAST_DEBUG \
+    _C_FLAGS_PROFILER \
+    _C_FLAGS_RELEASE \
+    _C_FOPTIONS \
+    _C_FOPTIONS_ALIGNED_ALLOCATION \
+    _C_FOPTIONS_CLANG_10 \
+    _C_FOPTIONS_CLANG_10_LINUX \
+    _C_FOPTIONS_COLOR \
+    _C_FOPTIONS_COVERAGE \
+    _C_FOPTIONS_DEBUG \
+    _C_FOPTIONS_GCC \
+    _C_FOPTIONS_INIT_ARRAY \
+    _C_FOPTIONS_IOS \
+    _C_FOPTIONS_MAPSMOBI_ARM \
+    _C_FOPTIONS_PROFILER \
+    _C_FOPTIONS_RELEASE \
+    _C_SYSTEM_LIBRARIES \
+    _C_WARNINGS \
+    _C_WARNINGS_CLANG \
+    _C_WARNINGS_CLANG_CL \
+    _DEBUG_INFO_FLAGS \
+    _DEFINES_ARCH \
+    _DEFINES_UNICODE \
+    _DEFINES_WIN32_WINNT \
+    _DWARF_COMMAND \
+    _END_GROUP \
+    _EXEC_SHARED_FLAG \
+    _EXE_FLAGS \
+    _FLAGS_COMMON \
+    _FLAGS_COMMON_DEBUG \
+    _FLAGS_COMMON_IDE_MSVS \
+    _FLAGS_COMMON_LIBPATHS \
+    _FLAGS_C_ONLY \
+    _FLAGS_DEBUG_ONLY \
+    _FLAGS_DEBUG_ONLY_CLANG_CL \
+    _FLAGS_DEBUG_ONLY_DEBUG \
+    _FLAGS_DEBUG_RUNTIME \
+    _FLAGS_IGNORE \
+    _FLAGS_MACHINE \
+    _FLAGS_MSVS_ONLY \
+    _FLAGS_RELEASE_ONLY \
+    _FLAGS_RELEASE_ONLY_DEBUG \
+    _FLAGS_RELEASE_RUNTIME \
+    _LD_ARCHIVER \
+    _LD_ARCH_FLAG \
+    _LD_AR_PLUGIN \
+    _LD_DCE_FLAG_GC_SECTIONS \
+    _LD_DCE_FLAG_PRINT_SECTIONS \
+    _LD_ENV_STYLE \
+    _LD_FLAGS \
+    _LD_FLAGS_1 \
+    _LD_FLAGS_2 \
+    _LD_FLAGS_COVERAGE \
+    _LD_FLAGS_IOS_MAPSMOBI_ARM \
+    _LD_FLAGS_PROFILER_TYPE \
+    _LD_FLAGS_SIZE_OPTIMIZED \
+    _LD_ICF_FLAG \
+    _LD_ICF_FLAG_PRINT_SECTIONS \
+    _LD_LIB_GENERATE_MF \
+    _LD_LINKER_OUTPUT\
+    _LD_LINKER_OUTPUT_FLAG \
+    _LD_LINK_FAT_PREFIX \
+    _LD_LINK_FAT_SRCS_GLOBALS_NO_WA \
+    _LD_LINK_FAT_SRCS_GLOBALS_WA \
+    _LD_LINK_FAT_SUFFIX1 \
+    _LD_LINK_FAT_SUFFIX2 \
+    _LD_LLVM_AR_FORMAT \
+    _LD_SRCS_GLOBALS \
+    _LD_SYS_LIB \
+    _LD_TAIL_LINK_LIB \
+    _LD_THREAD_LIBRARY \
+    _LD_USE_STDLIB \
+    _LINKER_TIME_TRACE_FLAG \
+    _LINKER_TIME_TRACE_GRANULARITY \
+    _LINK_EXTRA_OUTPUT \
+    _MASM_IO \
+    _MSVC_ARCH \
+    _MSVC_FLAGS \
+    _MSVC_FLAGS_ARCH_OPT \
+    _MSVC_FLAGS_CLANG \
+    _MSVC_FLAGS_CLANG_ARCH \
+    _MSVC_FLAGS_CLANG_EQ_2019 \
+    _MSVC_FLAGS_CLANG_NO_WARNINGS \
+    _MSVC_FLAGS_INCLUDE \
+    _MSVC_HEAD_LINK_LIB \
+    _MSVC_MACRO \
+    _MSVC_SRCS_GLOBALS \
+    _MSVC_TAIL_LINK_LIB \
+    _MSVC_TC_KIT_LIBS \
+    _MSVC_TC_VC_ROOT \
+    _MSVC_WARNS_AS_ERRORS \
+    _MSVC_WARNS_DISABLED \
+    _MSVC_WARNS_ENABLED \
+    _MSVC_WINDOWS7 \
+    _MSVC_WINDOWS8 \
+    _OPTIMIZE_RELEASE \
+    _SFDL_FLAGS \
+    _SHARED_FLAG \
+    _SONAME_FLAG \
+    _SONAME_OPTION \
+    _START_GROUP \
+    _STD_CXX \
+    _WINAPI_UNICODE \
+
+# end of _FOLDABLE_VARS list
diff --git a/build/conf/sysincl.conf b/build/conf/sysincl.conf
new file mode 100644
index 0000000000..60e641e2db
--- /dev/null
+++ b/build/conf/sysincl.conf
@@ -0,0 +1,61 @@
+SYSINCL=
+SYSINCL+=build/sysincl/libc-to-compat.yml
+SYSINCL+=build/sysincl/libc-to-nothing.yml
+SYSINCL+=build/sysincl/stl-to-nothing.yml
+SYSINCL+=build/sysincl/linux.yml
+SYSINCL+=build/sysincl/windows.yml
+SYSINCL+=build/sysincl/darwin.yml
+SYSINCL+=build/sysincl/intrinsic.yml
+SYSINCL+=build/sysincl/nvidia.yml
+SYSINCL+=build/sysincl/misc.yml
+SYSINCL+=build/sysincl/unsorted.yml
+
+when ($USE_LOCAL_SWIG == "yes") {
+    SYSINCL+=build/sysincl/swig-to-nothing.yml
+}
+otherwise {
+    SYSINCL+=build/sysincl/swig.yml
+}
+
+when ($USE_SYSTEM_JDK) {
+    SYSINCL+=build/sysincl/system-jdk.yml
+}
+
+when ($OPENSOURCE != "yes") {
+    SYSINCL+=build/yandex_specific/sysincl/speechkit.yml
+    SYSINCL+=build/yandex_specific/sysincl/sophos.yml
+    SYSINCL+=build/yandex_specific/sysincl/misc.yml
+    SYSINCL+=build/yandex_specific/sysincl/taxi.yml
+}
+
+when ($MUSL == "yes") {
+    SYSINCL+=build/sysincl/libc-to-musl.yml
+    SYSINCL+=build/sysincl/linux-musl.yml
+}
+
+when ($OS_WINDOWS == "yes") {
+    SYSINCL+=build/sysincl/misc-win.yml
+    when ($OPENSOURCE !="yes") {
+        SYSINCL+=build/yandex_specific/sysincl/misc-win.yml
+    }
+}
+
+when ($OS_ANDROID == "yes") {
+    SYSINCL+=build/sysincl/android.yml
+}
+
+when ($OS_LINUX != "yes") {
+    SYSINCL+=build/sysincl/linux-headers.yml
+}
+
+when ($OS_LINUX != "yes" || $CATBOOST_OPENSOURCE == "yes") {
+    SYSINCL+=build/sysincl/ibdrv.yml
+}
+
+when ($WITH_VALGRIND == "yes") {
+    SYSINCL+=build/sysincl/valgrind.yml
+}
+
+when ($OS_LINUX == "yes" && $OS_SDK == "ubuntu-12") {
+    SYSINCL+=build/sysincl/linux-ubuntu-12.yml
+}
diff --git a/build/conf/toolchains/gnu_toolchain.conf b/build/conf/toolchains/gnu_toolchain.conf
new file mode 100644
index 0000000000..e69de29bb2
--- /dev/null
+++ b/build/conf/toolchains/gnu_toolchain.conf
diff --git a/build/conf/toolchains/msvc_toolchain.conf b/build/conf/toolchains/msvc_toolchain.conf
new file mode 100644
index 0000000000..6b4d6b5c45
--- /dev/null
+++ b/build/conf/toolchains/msvc_toolchain.conf
@@ -0,0 +1,7 @@
+# TODO(somov): Заглушка для тех мест, где C_FLAGS_PLATFORM используется
+# для любых платформ. Нужно унифицировать с GnuToolchain.
+C_FLAGS_PLATFORM=
+
+when ($_UNDER_WINE == "yes") {
+    WINE_ENV=${env:"WINEPREFIX_SUFFIX=4.0"}
+}
diff --git a/build/conf/ts.conf b/build/conf/ts.conf
new file mode 100644
index 0000000000..8fc221c3ca
--- /dev/null
+++ b/build/conf/ts.conf
@@ -0,0 +1,105 @@
+NODEJS_ROOT=$NODEJS_RESOURCE_GLOBAL
+NODEJS_BIN=$NODEJS_ROOT/node
+PNPM_ROOT=$PNPM_RESOURCE_GLOBAL
+PNPM_SCRIPT=$PNPM_ROOT/pnpm.js
+TSC_ROOT=$TS_COMPILER_RESOURCE_GLOBAL/typescript
+TSC_SCRIPT=$TSC_ROOT/lib/tsc.js
+NOTS_TOOL=${tool:"tools/nots"}
+NOTS_TOOL_BASE_ARGS=--build-root $ARCADIA_BUILD_ROOT --bindir $BINDIR --curdir $CURDIR --nodejs-bin $NODEJS_BIN
+
+NPM_CONTRIBS_PATH=devtools/dummy_arcadia/ts/contribs
+
+### @usage: NPM_CONTRIBS() # internal
+###
+### Defines special module that provides contrib tarballs from internal npm registry.
+### Should be used only with `NODE_MODULES` macro.
+###
+### @see [FROM_NPM_LOCKFILES()](#macro_FROM_NPM_LOCKFILES)
+### @see [NODE_MODULES()](#macro_NODE_MODULES)
+module NPM_CONTRIBS: _BASE_UNIT {
+    .CMD=TOUCH_UNIT
+    .PEERDIR_POLICY=as_build_from
+    .FINAL_TARGET=no
+    .ALLOWED=FROM_NPM_LOCKFILES
+    .RESTRICTED=PEERDIR
+
+    SET(MODULE_TAG NPM_CONTRIBS)
+
+    MODULE_SUFFIX=.fake
+
+    _BARE_MODULE()
+}
+
+### @usage: FROM_NPM_LOCKFILES(LOCKFILES...) # internal
+###
+### Defines lockfile list for `NPM_CONTRIBS` module.
+###
+### @see [NPM_CONTRIBS()](#module_NPM_CONTRIBS)
+macro FROM_NPM_LOCKFILES(LOCKFILES...) {
+    SET_APPEND(_MAKEFILE_INCLUDE_LIKE_DEPS $LOCKFILES)
+    # See implementation in build/plugins/nots.py
+    _FROM_NPM_LOCKFILES($LOCKFILES)
+}
+
+### @usage: FROM_NPM(NAME VERSION SKY_ID INTEGRITY INTEGRITY_ALGO TARBALL_PATH)
+macro FROM_NPM(NAME, VERSION, SKY_ID, INTEGRITY, INTEGRITY_ALGO, TARBALL_PATH) {
+    .CMD=${cwd:BINDIR} $YMAKE_PYTHON ${input:"build/scripts/fetch_from_npm.py"} ${input;hide:"build/scripts/fetch_from.py"} ${input;hide:"build/scripts/sky.py"} --name $NAME --version $VERSION --sky-id $SKY_ID --integrity $INTEGRITY --integrity-algorithm $INTEGRITY_ALGO --copy-to ${output:TARBALL_PATH} ${requirements;hide:"network:full"} ${kv;hide:"p NP"} ${kv;hide:"pc yellow"}
+}
+
+### @usage: NODE_MODULES()
+###
+### Materializes `node_modules.tar` bundle according to the module's lockfile.
+###
+### @see [NPM_CONTRIBS()](#module_NPM_CONTRIBS)
+macro NODE_MODULES() {
+    # See implementation in build/plugins/nots.py
+}
+
+_NODE_MODULES_INPUTS=
+
+macro _NODE_MODULES(IN{input}[], OUT{output}[]) {
+    PEERDIR($NPM_CONTRIBS_PATH)
+    SET(_NODE_MODULES_INPUTS \${input;hide:node_modules.tar})
+
+    .CMD=${cwd:BINDIR} $NOTS_TOOL create-node-modules $NOTS_TOOL_BASE_ARGS --pnpm-script $PNPM_SCRIPT --contribs $NPM_CONTRIBS_PATH ${input;hide:IN} ${output;global;hide:OUT} ${kv;hide:"p NM"} ${kv;hide:"pc yellow"}
+}
+
+module _TS_BASE_UNIT: _BASE_UNIT {
+    SET(MODULE_TAG TS)
+    SET(PEERDIR_TAGS TS NPM_CONTRIBS)
+
+    PEERDIR(build/platform/nodejs)
+    PEERDIR(build/external_resources/pnpm)
+    PEERDIR(build/external_resources/typescript)
+
+    MODULE_SUFFIX=.fake
+
+    _BARE_MODULE()
+}
+
+TS_CONFIG_PATH=tsconfig.json
+
+TS_COMPILE=${cwd:BINDIR} $NOTS_TOOL compile-ts $NOTS_TOOL_BASE_ARGS --tsc-script $TSC_SCRIPT --config ${input:TS_CONFIG_PATH} $_NODE_MODULES_INPUTS ${output;hide:"package.json"} ${kv;hide:"p FE"} ${kv;hide:"pc yellow"} && $TOUCH_UNIT
+
+### @usage: TS_LIBRARY([name])
+###
+### The TypeScript/JavaScript library module, compiles TypeScript sources to JavaScript.
+### Build results are JavaScript files, typings and source mappings (depending on local tsconfig.json settings).
+###
+### @see [NODE_MODULES()](#macro_NODE_MODULES)
+### @example
+###
+###     TS_LIBRARY()
+###         SRCS(src/index.ts)
+###         NODE_MODULES()
+###     END()
+###
+module TS_LIBRARY : _TS_BASE_UNIT {
+    .CMD=TS_COMPILE
+    .FINAL_TARGET=yes
+    .PEERDIR_POLICY=as_build_from
+
+    SET_APPEND(_MAKEFILE_INCLUDE_LIKE_DEPS ${CURDIR}/${TS_CONFIG_PATH} ${CURDIR}/package.json)
+
+    _TS_CONFIGURE($TS_CONFIG_PATH)
+}