[v2,0/5] kselftest/arm64: add features check to hwcap test

Add new feature checks and provide testing item to support capturing
SIGBUS exception signal.

The following is a log snippet from my local testing environment:
~~~
 TAP version 13
 1..90
 # CRC32 present
 ok 1 cpuinfo_match_CRC32
 ok 2 sigill_CRC32
 ok 3 # SKIP sigbus_CRC32
 ok 4 cpuinfo_match_CSSC
 # sigill_reported for CSSC
 ok 5 # SKIP sigill_CSSC
 ok 6 # SKIP sigbus_CSSC
 # FP present
 ok 7 cpuinfo_match_FP
 ok 8 sigill_FP
 ok 9 # SKIP sigbus_FP
 # LRCPC present
 ok 10 cpuinfo_match_LRCPC
 ok 11 sigill_LRCPC
 ok 12 # SKIP sigbus_LRCPC
 # LRCPC2 present
 ok 13 cpuinfo_match_LRCPC2
 ok 14 sigill_LRCPC2
 ok 15 # SKIP sigbus_LRCPC2
 # LSE present
 ok 16 cpuinfo_match_LSE
 ok 17 sigill_LSE
 ok 18 # SKIP sigbus_LSE
 # LSE2 present
 ok 19 cpuinfo_match_LSE2
 ok 20 sigill_LSE2
 ok 21 sigbus_LSE2
 ok 22 cpuinfo_match_MOPS
 ok 23 sigill_MOPS
 ok 24 # SKIP sigbus_MOPS
 # RNG present
 ok 25 cpuinfo_match_RNG
 ok 26 sigill_RNG
 ok 27 # SKIP sigbus_RNG
 ok 28 cpuinfo_match_RPRFM
 ok 29 # SKIP sigill_RPRFM
 ok 30 # SKIP sigbus_RPRFM
 ok 31 cpuinfo_match_SME
 ok 32 sigill_SME
 ok 33 # SKIP sigbus_SME
 ok 34 cpuinfo_match_SME2
 ok 35 sigill_SME2
 ok 36 # SKIP sigbus_SME2
 ok 37 cpuinfo_match_SME 2.1
 # sigill_reported for SME 2.1
 ok 38 # SKIP sigill_SME 2.1
 ok 39 # SKIP sigbus_SME 2.1
 ok 40 cpuinfo_match_SME I16I32
 # sigill_reported for SME I16I32
 ok 41 # SKIP sigill_SME I16I32
 ok 42 # SKIP sigbus_SME I16I32
 ok 43 cpuinfo_match_SME BI32I32
 # sigill_reported for SME BI32I32
 ok 44 # SKIP sigill_SME BI32I32
 ok 45 # SKIP sigbus_SME BI32I32
 ok 46 cpuinfo_match_SME B16B16
 # sigill_reported for SME B16B16
 ok 47 # SKIP sigill_SME B16B16
 ok 48 # SKIP sigbus_SME B16B16
 ok 49 cpuinfo_match_SME F16F16
 # sigill_reported for SME F16F16
 ok 50 # SKIP sigill_SME F16F16
 ok 51 # SKIP sigbus_SME F16F16
 # SVE present
 ok 52 cpuinfo_match_SVE
 ok 53 sigill_SVE
 ok 54 # SKIP sigbus_SVE
 ok 55 cpuinfo_match_SVE 2
 # sigill_reported for SVE 2
 ok 56 # SKIP sigill_SVE 2
 ok 57 # SKIP sigbus_SVE 2
 ok 58 cpuinfo_match_SVE 2.1
 # sigill_reported for SVE 2.1
 ok 59 # SKIP sigill_SVE 2.1
 ok 60 # SKIP sigbus_SVE 2.1
 ok 61 cpuinfo_match_SVE AES
 # sigill_reported for SVE AES
 ok 62 # SKIP sigill_SVE AES
 ok 63 # SKIP sigbus_SVE AES
 ok 64 cpuinfo_match_SVE2 PMULL
 # sigill_reported for SVE2 PMULL
 ok 65 # SKIP sigill_SVE2 PMULL
 ok 66 # SKIP sigbus_SVE2 PMULL
 ok 67 cpuinfo_match_SVE2 BITPERM
 # sigill_reported for SVE2 BITPERM
 ok 68 # SKIP sigill_SVE2 BITPERM
 ok 69 # SKIP sigbus_SVE2 BITPERM
 ok 70 cpuinfo_match_SVE2 SHA3
 # sigill_reported for SVE2 SHA3
 ok 71 # SKIP sigill_SVE2 SHA3
 ok 72 # SKIP sigbus_SVE2 SHA3
 ok 73 cpuinfo_match_SVE2 SM4
 # sigill_reported for SVE2 SM4
 ok 74 # SKIP sigill_SVE2 SM4
 ok 75 # SKIP sigbus_SVE2 SM4
 # SVE2 I8MM present
 ok 76 cpuinfo_match_SVE2 I8MM
 ok 77 sigill_SVE2 I8MM
 ok 78 # SKIP sigbus_SVE2 I8MM
 # SVE2 F32MM present
 ok 79 cpuinfo_match_SVE2 F32MM
 ok 80 sigill_SVE2 F32MM
 ok 81 # SKIP sigbus_SVE2 F32MM
 # SVE2 F64MM present
 ok 82 cpuinfo_match_SVE2 F64MM
 ok 83 sigill_SVE2 F64MM
 ok 84 # SKIP sigbus_SVE2 F64MM
 # SVE2 BF16 present
 ok 85 cpuinfo_match_SVE2 BF16
 ok 86 sigill_SVE2 BF16
 ok 87 # SKIP sigbus_SVE2 BF16
 ok 88 cpuinfo_match_SVE2 EBF16
 ok 89 # SKIP sigill_SVE2 EBF16
 ok 90 # SKIP sigbus_SVE2 EBF16
 # Totals: pass:46 fail:0 xfail:0 xpass:0 skip:44 error:0
~~~

Zeng Heng (5):
  kselftest/arm64: add float-point feature to hwcap test
  kselftest/arm64: add crc32 feature to hwcap test
  kselftest/arm64: add DEF_SIGHANDLER_FUNC() and DEF_INST_RAISE_SIG()
    helpers
  kselftest/arm64: add test item that support to capturing the SIGBUS
    signal
  kselftest/arm64: add lse and lse2 features to hwcap test

 tools/testing/selftests/arm64/abi/hwcap.c | 201 ++++++++++++++++------
 1 file changed, 151 insertions(+), 50 deletions(-)

---
v1 -> v2:
  - switch fp and crc32 instructions from hand encode to assemble language.
    There is no logical changes between versions.

--
2.25.1