Date: Sun, 12 Jul 2015 19:38:37 +0530 From: Vijay Rajah <me@rvijay.me> To: FreeBSD questions <freebsd-questions@freebsd.org> Subject: Openssl + Via Padlock Message-ID: <55A274E5.50903@rvijay.me>
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Hello List, I have a system with VIA chipset. I want to compile openssl with padlock support. I'm getting "Illegal instruction" error, when I try to use the sha256library root@my-host:~ # dd if=/dev/zero bs=1M count=512 | /usr/local/bin/openssl sha256 Illegal instruction (core dumped) This is a dedicated server. This is a fresh install of FreeBSD 10.1. I installed Openssl from ports Here are the details.. root@my-host:~ # uname -a FreeBSD my-host 10.1-RELEASE-p10 FreeBSD 10.1-RELEASE-p10 #0: Wed May 13 06:54:13 UTC 2015 root@amd64-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC amd64 root@my-host:~ # freebsd-version 10.1-RELEASE-p14 root@my-host:~ # /usr/local/bin/openssl version OpenSSL 1.0.2d 9 Jul 2015 root@my-host:~ # /usr/local/bin/openssl engine (dynamic) Dynamic engine loading support (padlock) VIA PadLock: RNG ACE2 PHE NANO root@my-host:~ # dmesg | grep -i via CPU: VIA Nano processor U2250 (1.6GHz Capable) (1596.04-MHz K8-class CPU) VIA Padlock Features=0x70dcc<RNG,AES,AES-CTR,SHA1,SHA256> . . . root@my-host:~ # kldstat Id Refs Address Size Name 1 10 0xffffffff80200000 1756638 kernel 2 1 0xffffffff81a11000 26c7 pflog.ko 3 1 0xffffffff81a14000 32339 pf.ko 4 1 0xffffffff81a47000 2b1d padlock.ko 5 1 0xffffffff81a4a000 1f565 crypto.ko Examining the core file with GDB give me the following # gdb /usr/local/bin/openssl openssl.core . . (gdb) bt #0 0x00000008014f2c7e in padlock_sha256_update () from /usr/local/lib/engines/libpadlock.so #1 0x0000000800c3499f in md_read () from /usr/local/lib/libcrypto.so.8 #2 0x0000000800c1c724 in BIO_read () from /usr/local/lib/libcrypto.so.8 #3 0x00000000004228d0 in do_fp () #4 0x0000000000422683 in dgst_main () #5 0x000000000041b77d in do_cmd () #6 0x000000000041b606 in main () (gdb) disassemble 0x00000008014f2c7e . . . 0x00000008014f2c7b <padlock_sha256_update+395>: mov %rdx,%rcx *0x00000008014f2c7e <padlock_sha256_update+398>: xsha256 * 0x00000008014f2c81 <padlock_sha256_update+401>: shl $0x6,%rdx . . . Hence, it appears that the openssl command fails at the "xsha256" instruction. This appears to be VIA chip's instruction?? Any ideas as to why this is failing? -Thanks in advance Vijay
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