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87d84e437a
Add crc32_ieee() and crc32_ieeepart() that produce CRC32 values
compatible with Linux/zlib. The difference from the existing crc32():
crc32(): init=0, no final XOR (NuttX native)
crc32_ieee(): init=0xFFFFFFFF, final XOR 0xFFFFFFFF (Linux/zlib)
The existing crc32() and crc32part() are unchanged to avoid breaking
existing callers (bbsram, sbram, etc.).
New functions:
crc32_ieee(src, len) - full CRC, Linux-compatible
crc32_ieeepart(src, len, crcval) - incremental CRC, Linux-compatible
Verified on sim:nsh against known Linux zlib test vectors:
crc32_ieee("hello") = 0x3610a686 (Linux: 0x3610a686) PASS
crc32_ieee("123456789") = 0xcbf43926 (Linux: 0xcbf43926) PASS
crc32_ieee("") = 0x00000000 (Linux: 0x00000000) PASS
crc32_ieeepart incremental = 0xcbf43926 PASS
crc32("hello") = 0xf032519b (unchanged) PASS
Signed-off-by: hanzhijian <hanzhijian@zepp.com>
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| .. | ||
| CMakeLists.txt | ||
| Kconfig | ||
| lib_backtrace.c | ||
| lib_bitmap.c | ||
| lib_circbuf.c | ||
| lib_crc8.c | ||
| lib_crc8ccitt.c | ||
| lib_crc8h1d.c | ||
| lib_crc8h2f.c | ||
| lib_crc8rohc.c | ||
| lib_crc8table.c | ||
| lib_crc16.c | ||
| lib_crc16ccitt.c | ||
| lib_crc16h1021.c | ||
| lib_crc16h8005.c | ||
| lib_crc16ibm.c | ||
| lib_crc16xmodem.c | ||
| lib_crc32.c | ||
| lib_crc32h04c11db7.c | ||
| lib_crc32hf4acfb13.c | ||
| lib_crc64.c | ||
| lib_crc64emac.c | ||
| lib_creat.c | ||
| lib_cxx_initialize.c | ||
| lib_debug.c | ||
| lib_dumpbuffer.c | ||
| lib_dumpvbuffer.c | ||
| lib_envpath.c | ||
| lib_err.c | ||
| lib_fchmodat.c | ||
| lib_fdcheck.c | ||
| lib_fdsan.c | ||
| lib_fnmatch.c | ||
| lib_fstatat.c | ||
| lib_ftok.c | ||
| lib_getfullpath.c | ||
| lib_getnprocs.c | ||
| lib_getrandom.c | ||
| lib_glob.c | ||
| lib_idr.c | ||
| lib_impure.c | ||
| lib_instrument.c | ||
| lib_kbddecode.c | ||
| lib_kbdencode.c | ||
| lib_mallopt.c | ||
| lib_memfd.c | ||
| lib_mkdirat.c | ||
| lib_mkfifo.c | ||
| lib_mknod.c | ||
| lib_mutex.c | ||
| lib_ncompress.c | ||
| lib_note.c | ||
| lib_openat.c | ||
| lib_slcddecode.c | ||
| lib_slcdencode.c | ||
| lib_tea_decrypt.c | ||
| lib_tea_encrypt.c | ||
| lib_tempbuffer.c | ||
| lib_uadd32x64.c | ||
| lib_uadd64.c | ||
| lib_umask.c | ||
| lib_umul32.c | ||
| lib_umul32x64.c | ||
| lib_umul64.c | ||
| lib_usub64.c | ||
| lib_usub64x32.c | ||
| lib_utimensat.c | ||
| lib_utsname.c | ||
| lib_xorshift128.c | ||
| Make.defs | ||