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Fix: ensure bitnet-lut-kernels.h prepared before llama.cpp build #449

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Fix: ensure bitnet-lut-kernels.h prepared before llama.cpp build #449

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35 changes: 35 additions & 0 deletions CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -14,6 +14,8 @@ set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
# option list
option(BITNET_ARM_TL1 "bitnet.cpp: use tl1 on arm platform" OFF)
option(BITNET_X86_TL2 "bitnet.cpp: use tl2 on x86 platform" OFF)
set(BITNET_PRESET_KERNEL_MODEL "bitnet_b1_58-3B" CACHE STRING "Preset kernel model used to prepare include/bitnet-lut-kernels.h")
set(BITNET_LUT_KERNELS_FILE "" CACHE FILEPATH "Optional path to a pre-generated bitnet-lut-kernels.h file")


set(CMAKE_CXX_STANDARD_REQUIRED true)
Expand All @@ -36,6 +38,39 @@ if (CMAKE_C_COMPILER_ID STREQUAL "GNU" OR CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
add_compile_options(-fpermissive)
endif()

set(BITNET_LUT_KERNELS_DST "${CMAKE_CURRENT_SOURCE_DIR}/include/bitnet-lut-kernels.h")
if (NOT EXISTS "${BITNET_LUT_KERNELS_DST}")
file(MAKE_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/include")

if (BITNET_LUT_KERNELS_FILE)
if (NOT EXISTS "${BITNET_LUT_KERNELS_FILE}")
message(FATAL_ERROR "BITNET_LUT_KERNELS_FILE does not exist: ${BITNET_LUT_KERNELS_FILE}")
endif()
configure_file("${BITNET_LUT_KERNELS_FILE}" "${BITNET_LUT_KERNELS_DST}" COPYONLY)
message(STATUS "Prepared bitnet-lut-kernels.h from BITNET_LUT_KERNELS_FILE=${BITNET_LUT_KERNELS_FILE}")
Comment on lines +41 to +50
else()
set(BITNET_LUT_KERNEL_VARIANT "tl2")
if (GGML_BITNET_ARM_TL1)
set(BITNET_LUT_KERNEL_VARIANT "tl1")
elseif (GGML_BITNET_X86_TL2)
set(BITNET_LUT_KERNEL_VARIANT "tl2")
elseif (CMAKE_SYSTEM_PROCESSOR MATCHES "^(aarch64|arm64)")
set(BITNET_LUT_KERNEL_VARIANT "tl1")
endif()

set(BITNET_PRESET_KERNEL_HEADER "${CMAKE_CURRENT_SOURCE_DIR}/preset_kernels/${BITNET_PRESET_KERNEL_MODEL}/bitnet-lut-kernels-${BITNET_LUT_KERNEL_VARIANT}.h")
if (NOT EXISTS "${BITNET_PRESET_KERNEL_HEADER}")
message(FATAL_ERROR
"bitnet-lut-kernels.h is missing and no valid preset header was found. "
"Expected: ${BITNET_PRESET_KERNEL_HEADER}. "
"Set BITNET_LUT_KERNELS_FILE to a generated header or BITNET_PRESET_KERNEL_MODEL to an available preset.")
endif()

configure_file("${BITNET_PRESET_KERNEL_HEADER}" "${BITNET_LUT_KERNELS_DST}" COPYONLY)
message(STATUS "Prepared bitnet-lut-kernels.h from preset model=${BITNET_PRESET_KERNEL_MODEL}, variant=${BITNET_LUT_KERNEL_VARIANT}")
endif()
endif()

find_package(Threads REQUIRED)

add_subdirectory(src)
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