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# Inputs (via -D):
#   ELF_FILE  - path to source .elf
#   OUT_FILE  - path to output .cpp
#   VAR_NAME  - C symbol base name (kernel name)

file(READ "${ELF_FILE}" HEX HEX)
string(LENGTH "${HEX}" HEX_LEN)
math(EXPR SIZE "${HEX_LEN} / 2")
string(REGEX REPLACE "(..)" "0x\\1," BYTES "${HEX}")

file(WRITE "${OUT_FILE}"
"// Auto-generated by embed_one_kernel.cmake. Do not edit.\n"
"#include <cstdint>\n"
"unsigned char ${VAR_NAME}_data[${SIZE}] = { ${BYTES} };\n"
"extern const uint64_t ${VAR_NAME}_len = ${SIZE};\n")