* [PATCH] xfs_io: add crc32 self test
@ 2018-10-29 18:11 Darrick J. Wong
2018-10-29 18:30 ` Eric Sandeen
2018-10-29 19:10 ` [PATCH v2] " Darrick J. Wong
0 siblings, 2 replies; 4+ messages in thread
From: Darrick J. Wong @ 2018-10-29 18:11 UTC (permalink / raw)
To: Eric Sandeen; +Cc: xfs
From: Darrick J. Wong <darrick.wong@oracle.com>
Add a self test for crc32 into xfs_io so that xfstests can check the
operation of the (potentially cross-compiled) package binaries by
isolating the self test code to a header file that can be included by
the build system self test and xfs_io.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
---
include/crc32selftest.h | 706 +++++++++++++++++++++++++++++++++++++++++++++++
io/Makefile | 8 -
io/crc32selftest.c | 51 +++
io/init.c | 1
io/io.h | 1
libfrog/crc32.c | 669 ---------------------------------------------
6 files changed, 764 insertions(+), 672 deletions(-)
create mode 100644 include/crc32selftest.h
create mode 100644 io/crc32selftest.c
diff --git a/include/crc32selftest.h b/include/crc32selftest.h
new file mode 100644
index 00000000..75215c3f
--- /dev/null
+++ b/include/crc32selftest.h
@@ -0,0 +1,706 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Aug 8, 2011 Bob Pearson with help from Joakim Tjernlund and George Spelvin
+ * cleaned up code to current version of sparse and added the slicing-by-8
+ * algorithm to the closely similar existing slicing-by-4 algorithm.
+ * Oct 15, 2000 Matt Domsch <Matt_Domsch@dell.com>
+ * Nicer crc32 functions/docs submitted by linux@horizon.com. Thanks!
+ * Code was from the public domain, copyright abandoned. Code was
+ * subsequently included in the kernel, thus was re-licensed under the
+ * GNU GPL v2.
+ * Oct 12, 2000 Matt Domsch <Matt_Domsch@dell.com>
+ * Same crc32 function was used in 5 other places in the kernel.
+ * I made one version, and deleted the others.
+ * There are various incantations of crc32(). Some use a seed of 0 or ~0.
+ * Some xor at the end with ~0. The generic crc32() function takes
+ * seed as an argument, and doesn't xor at the end. Then individual
+ * users can do whatever they need.
+ * drivers/net/smc9194.c uses seed ~0, doesn't xor with ~0.
+ * fs/jffs2 uses seed 0, doesn't xor with ~0.
+ * fs/partitions/efi.c uses seed ~0, xor's with ~0.
+ */
+
+/* see: Documentation/crc32.txt for a description of algorithms */
+
+/*
+ * lifted from the 3.8-rc2 kernel source for xfsprogs. Killed CONFIG_X86
+ * specific bits for just the generic algorithm. Also removed the big endian
+ * version of the algorithm as XFS only uses the little endian CRC version to
+ * match the hardware acceleration available on Intel CPUs.
+ */
+
+/* This is just the crc32 self test bits from crc32.c. */
+
+#ifndef _LIBFROG_CRC32SELFTEST_H_
+#define _LIBFROG_CRC32SELFTEST_H_
+
+/* 4096 random bytes */
+static uint8_t __attribute__((__aligned__(8))) test_buf[] =
+{
+ 0x5b, 0x85, 0x21, 0xcb, 0x09, 0x68, 0x7d, 0x30,
+ 0xc7, 0x69, 0xd7, 0x30, 0x92, 0xde, 0x59, 0xe4,
+ 0xc9, 0x6e, 0x8b, 0xdb, 0x98, 0x6b, 0xaa, 0x60,
+ 0xa8, 0xb5, 0xbc, 0x6c, 0xa9, 0xb1, 0x5b, 0x2c,
+ 0xea, 0xb4, 0x92, 0x6a, 0x3f, 0x79, 0x91, 0xe4,
+ 0xe9, 0x70, 0x51, 0x8c, 0x7f, 0x95, 0x6f, 0x1a,
+ 0x56, 0xa1, 0x5c, 0x27, 0x03, 0x67, 0x9f, 0x3a,
+ 0xe2, 0x31, 0x11, 0x29, 0x6b, 0x98, 0xfc, 0xc4,
+ 0x53, 0x24, 0xc5, 0x8b, 0xce, 0x47, 0xb2, 0xb9,
+ 0x32, 0xcb, 0xc1, 0xd0, 0x03, 0x57, 0x4e, 0xd4,
+ 0xe9, 0x3c, 0xa1, 0x63, 0xcf, 0x12, 0x0e, 0xca,
+ 0xe1, 0x13, 0xd1, 0x93, 0xa6, 0x88, 0x5c, 0x61,
+ 0x5b, 0xbb, 0xf0, 0x19, 0x46, 0xb4, 0xcf, 0x9e,
+ 0xb6, 0x6b, 0x4c, 0x3a, 0xcf, 0x60, 0xf9, 0x7a,
+ 0x8d, 0x07, 0x63, 0xdb, 0x40, 0xe9, 0x0b, 0x6f,
+ 0xad, 0x97, 0xf1, 0xed, 0xd0, 0x1e, 0x26, 0xfd,
+ 0xbf, 0xb7, 0xc8, 0x04, 0x94, 0xf8, 0x8b, 0x8c,
+ 0xf1, 0xab, 0x7a, 0xd4, 0xdd, 0xf3, 0xe8, 0x88,
+ 0xc3, 0xed, 0x17, 0x8a, 0x9b, 0x40, 0x0d, 0x53,
+ 0x62, 0x12, 0x03, 0x5f, 0x1b, 0x35, 0x32, 0x1f,
+ 0xb4, 0x7b, 0x93, 0x78, 0x0d, 0xdb, 0xce, 0xa4,
+ 0xc0, 0x47, 0xd5, 0xbf, 0x68, 0xe8, 0x5d, 0x74,
+ 0x8f, 0x8e, 0x75, 0x1c, 0xb2, 0x4f, 0x9a, 0x60,
+ 0xd1, 0xbe, 0x10, 0xf4, 0x5c, 0xa1, 0x53, 0x09,
+ 0xa5, 0xe0, 0x09, 0x54, 0x85, 0x5c, 0xdc, 0x07,
+ 0xe7, 0x21, 0x69, 0x7b, 0x8a, 0xfd, 0x90, 0xf1,
+ 0x22, 0xd0, 0xb4, 0x36, 0x28, 0xe6, 0xb8, 0x0f,
+ 0x39, 0xde, 0xc8, 0xf3, 0x86, 0x60, 0x34, 0xd2,
+ 0x5e, 0xdf, 0xfd, 0xcf, 0x0f, 0xa9, 0x65, 0xf0,
+ 0xd5, 0x4d, 0x96, 0x40, 0xe3, 0xdf, 0x3f, 0x95,
+ 0x5a, 0x39, 0x19, 0x93, 0xf4, 0x75, 0xce, 0x22,
+ 0x00, 0x1c, 0x93, 0xe2, 0x03, 0x66, 0xf4, 0x93,
+ 0x73, 0x86, 0x81, 0x8e, 0x29, 0x44, 0x48, 0x86,
+ 0x61, 0x7c, 0x48, 0xa3, 0x43, 0xd2, 0x9c, 0x8d,
+ 0xd4, 0x95, 0xdd, 0xe1, 0x22, 0x89, 0x3a, 0x40,
+ 0x4c, 0x1b, 0x8a, 0x04, 0xa8, 0x09, 0x69, 0x8b,
+ 0xea, 0xc6, 0x55, 0x8e, 0x57, 0xe6, 0x64, 0x35,
+ 0xf0, 0xc7, 0x16, 0x9f, 0x5d, 0x5e, 0x86, 0x40,
+ 0x46, 0xbb, 0xe5, 0x45, 0x88, 0xfe, 0xc9, 0x63,
+ 0x15, 0xfb, 0xf5, 0xbd, 0x71, 0x61, 0xeb, 0x7b,
+ 0x78, 0x70, 0x07, 0x31, 0x03, 0x9f, 0xb2, 0xc8,
+ 0xa7, 0xab, 0x47, 0xfd, 0xdf, 0xa0, 0x78, 0x72,
+ 0xa4, 0x2a, 0xe4, 0xb6, 0xba, 0xc0, 0x1e, 0x86,
+ 0x71, 0xe6, 0x3d, 0x18, 0x37, 0x70, 0xe6, 0xff,
+ 0xe0, 0xbc, 0x0b, 0x22, 0xa0, 0x1f, 0xd3, 0xed,
+ 0xa2, 0x55, 0x39, 0xab, 0xa8, 0x13, 0x73, 0x7c,
+ 0x3f, 0xb2, 0xd6, 0x19, 0xac, 0xff, 0x99, 0xed,
+ 0xe8, 0xe6, 0xa6, 0x22, 0xe3, 0x9c, 0xf1, 0x30,
+ 0xdc, 0x01, 0x0a, 0x56, 0xfa, 0xe4, 0xc9, 0x99,
+ 0xdd, 0xa8, 0xd8, 0xda, 0x35, 0x51, 0x73, 0xb4,
+ 0x40, 0x86, 0x85, 0xdb, 0x5c, 0xd5, 0x85, 0x80,
+ 0x14, 0x9c, 0xfd, 0x98, 0xa9, 0x82, 0xc5, 0x37,
+ 0xff, 0x32, 0x5d, 0xd0, 0x0b, 0xfa, 0xdc, 0x04,
+ 0x5e, 0x09, 0xd2, 0xca, 0x17, 0x4b, 0x1a, 0x8e,
+ 0x15, 0xe1, 0xcc, 0x4e, 0x52, 0x88, 0x35, 0xbd,
+ 0x48, 0xfe, 0x15, 0xa0, 0x91, 0xfd, 0x7e, 0x6c,
+ 0x0e, 0x5d, 0x79, 0x1b, 0x81, 0x79, 0xd2, 0x09,
+ 0x34, 0x70, 0x3d, 0x81, 0xec, 0xf6, 0x24, 0xbb,
+ 0xfb, 0xf1, 0x7b, 0xdf, 0x54, 0xea, 0x80, 0x9b,
+ 0xc7, 0x99, 0x9e, 0xbd, 0x16, 0x78, 0x12, 0x53,
+ 0x5e, 0x01, 0xa7, 0x4e, 0xbd, 0x67, 0xe1, 0x9b,
+ 0x4c, 0x0e, 0x61, 0x45, 0x97, 0xd2, 0xf0, 0x0f,
+ 0xfe, 0x15, 0x08, 0xb7, 0x11, 0x4c, 0xe7, 0xff,
+ 0x81, 0x53, 0xff, 0x91, 0x25, 0x38, 0x7e, 0x40,
+ 0x94, 0xe5, 0xe0, 0xad, 0xe6, 0xd9, 0x79, 0xb6,
+ 0x92, 0xc9, 0xfc, 0xde, 0xc3, 0x1a, 0x23, 0xbb,
+ 0xdd, 0xc8, 0x51, 0x0c, 0x3a, 0x72, 0xfa, 0x73,
+ 0x6f, 0xb7, 0xee, 0x61, 0x39, 0x03, 0x01, 0x3f,
+ 0x7f, 0x94, 0x2e, 0x2e, 0xba, 0x3a, 0xbb, 0xb4,
+ 0xfa, 0x6a, 0x17, 0xfe, 0xea, 0xef, 0x5e, 0x66,
+ 0x97, 0x3f, 0x32, 0x3d, 0xd7, 0x3e, 0xb1, 0xf1,
+ 0x6c, 0x14, 0x4c, 0xfd, 0x37, 0xd3, 0x38, 0x80,
+ 0xfb, 0xde, 0xa6, 0x24, 0x1e, 0xc8, 0xca, 0x7f,
+ 0x3a, 0x93, 0xd8, 0x8b, 0x18, 0x13, 0xb2, 0xe5,
+ 0xe4, 0x93, 0x05, 0x53, 0x4f, 0x84, 0x66, 0xa7,
+ 0x58, 0x5c, 0x7b, 0x86, 0x52, 0x6d, 0x0d, 0xce,
+ 0xa4, 0x30, 0x7d, 0xb6, 0x18, 0x9f, 0xeb, 0xff,
+ 0x22, 0xbb, 0x72, 0x29, 0xb9, 0x44, 0x0b, 0x48,
+ 0x1e, 0x84, 0x71, 0x81, 0xe3, 0x6d, 0x73, 0x26,
+ 0x92, 0xb4, 0x4d, 0x2a, 0x29, 0xb8, 0x1f, 0x72,
+ 0xed, 0xd0, 0xe1, 0x64, 0x77, 0xea, 0x8e, 0x88,
+ 0x0f, 0xef, 0x3f, 0xb1, 0x3b, 0xad, 0xf9, 0xc9,
+ 0x8b, 0xd0, 0xac, 0xc6, 0xcc, 0xa9, 0x40, 0xcc,
+ 0x76, 0xf6, 0x3b, 0x53, 0xb5, 0x88, 0xcb, 0xc8,
+ 0x37, 0xf1, 0xa2, 0xba, 0x23, 0x15, 0x99, 0x09,
+ 0xcc, 0xe7, 0x7a, 0x3b, 0x37, 0xf7, 0x58, 0xc8,
+ 0x46, 0x8c, 0x2b, 0x2f, 0x4e, 0x0e, 0xa6, 0x5c,
+ 0xea, 0x85, 0x55, 0xba, 0x02, 0x0e, 0x0e, 0x48,
+ 0xbc, 0xe1, 0xb1, 0x01, 0x35, 0x79, 0x13, 0x3d,
+ 0x1b, 0xc0, 0x53, 0x68, 0x11, 0xe7, 0x95, 0x0f,
+ 0x9d, 0x3f, 0x4c, 0x47, 0x7b, 0x4d, 0x1c, 0xae,
+ 0x50, 0x9b, 0xcb, 0xdd, 0x05, 0x8d, 0x9a, 0x97,
+ 0xfd, 0x8c, 0xef, 0x0c, 0x1d, 0x67, 0x73, 0xa8,
+ 0x28, 0x36, 0xd5, 0xb6, 0x92, 0x33, 0x40, 0x75,
+ 0x0b, 0x51, 0xc3, 0x64, 0xba, 0x1d, 0xc2, 0xcc,
+ 0xee, 0x7d, 0x54, 0x0f, 0x27, 0x69, 0xa7, 0x27,
+ 0x63, 0x30, 0x29, 0xd9, 0xc8, 0x84, 0xd8, 0xdf,
+ 0x9f, 0x68, 0x8d, 0x04, 0xca, 0xa6, 0xc5, 0xc7,
+ 0x7a, 0x5c, 0xc8, 0xd1, 0xcb, 0x4a, 0xec, 0xd0,
+ 0xd8, 0x20, 0x69, 0xc5, 0x17, 0xcd, 0x78, 0xc8,
+ 0x75, 0x23, 0x30, 0x69, 0xc9, 0xd4, 0xea, 0x5c,
+ 0x4f, 0x6b, 0x86, 0x3f, 0x8b, 0xfe, 0xee, 0x44,
+ 0xc9, 0x7c, 0xb7, 0xdd, 0x3e, 0xe5, 0xec, 0x54,
+ 0x03, 0x3e, 0xaa, 0x82, 0xc6, 0xdf, 0xb2, 0x38,
+ 0x0e, 0x5d, 0xb3, 0x88, 0xd9, 0xd3, 0x69, 0x5f,
+ 0x8f, 0x70, 0x8a, 0x7e, 0x11, 0xd9, 0x1e, 0x7b,
+ 0x38, 0xf1, 0x42, 0x1a, 0xc0, 0x35, 0xf5, 0xc7,
+ 0x36, 0x85, 0xf5, 0xf7, 0xb8, 0x7e, 0xc7, 0xef,
+ 0x18, 0xf1, 0x63, 0xd6, 0x7a, 0xc6, 0xc9, 0x0e,
+ 0x4d, 0x69, 0x4f, 0x84, 0xef, 0x26, 0x41, 0x0c,
+ 0xec, 0xc7, 0xe0, 0x7e, 0x3c, 0x67, 0x01, 0x4c,
+ 0x62, 0x1a, 0x20, 0x6f, 0xee, 0x47, 0x4d, 0xc0,
+ 0x99, 0x13, 0x8d, 0x91, 0x4a, 0x26, 0xd4, 0x37,
+ 0x28, 0x90, 0x58, 0x75, 0x66, 0x2b, 0x0a, 0xdf,
+ 0xda, 0xee, 0x92, 0x25, 0x90, 0x62, 0x39, 0x9e,
+ 0x44, 0x98, 0xad, 0xc1, 0x88, 0xed, 0xe4, 0xb4,
+ 0xaf, 0xf5, 0x8c, 0x9b, 0x48, 0x4d, 0x56, 0x60,
+ 0x97, 0x0f, 0x61, 0x59, 0x9e, 0xa6, 0x27, 0xfe,
+ 0xc1, 0x91, 0x15, 0x38, 0xb8, 0x0f, 0xae, 0x61,
+ 0x7d, 0x26, 0x13, 0x5a, 0x73, 0xff, 0x1c, 0xa3,
+ 0x61, 0x04, 0x58, 0x48, 0x55, 0x44, 0x11, 0xfe,
+ 0x15, 0xca, 0xc3, 0xbd, 0xca, 0xc5, 0xb4, 0x40,
+ 0x5d, 0x1b, 0x7f, 0x39, 0xb5, 0x9c, 0x35, 0xec,
+ 0x61, 0x15, 0x32, 0x32, 0xb8, 0x4e, 0x40, 0x9f,
+ 0x17, 0x1f, 0x0a, 0x4d, 0xa9, 0x91, 0xef, 0xb7,
+ 0xb0, 0xeb, 0xc2, 0x83, 0x9a, 0x6c, 0xd2, 0x79,
+ 0x43, 0x78, 0x5e, 0x2f, 0xe5, 0xdd, 0x1a, 0x3c,
+ 0x45, 0xab, 0x29, 0x40, 0x3a, 0x37, 0x5b, 0x6f,
+ 0xd7, 0xfc, 0x48, 0x64, 0x3c, 0x49, 0xfb, 0x21,
+ 0xbe, 0xc3, 0xff, 0x07, 0xfb, 0x17, 0xe9, 0xc9,
+ 0x0c, 0x4c, 0x5c, 0x15, 0x9e, 0x8e, 0x22, 0x30,
+ 0x0a, 0xde, 0x48, 0x7f, 0xdb, 0x0d, 0xd1, 0x2b,
+ 0x87, 0x38, 0x9e, 0xcc, 0x5a, 0x01, 0x16, 0xee,
+ 0x75, 0x49, 0x0d, 0x30, 0x01, 0x34, 0x6a, 0xb6,
+ 0x9a, 0x5a, 0x2a, 0xec, 0xbb, 0x48, 0xac, 0xd3,
+ 0x77, 0x83, 0xd8, 0x08, 0x86, 0x4f, 0x48, 0x09,
+ 0x29, 0x41, 0x79, 0xa1, 0x03, 0x12, 0xc4, 0xcd,
+ 0x90, 0x55, 0x47, 0x66, 0x74, 0x9a, 0xcc, 0x4f,
+ 0x35, 0x8c, 0xd6, 0x98, 0xef, 0xeb, 0x45, 0xb9,
+ 0x9a, 0x26, 0x2f, 0x39, 0xa5, 0x70, 0x6d, 0xfc,
+ 0xb4, 0x51, 0xee, 0xf4, 0x9c, 0xe7, 0x38, 0x59,
+ 0xad, 0xf4, 0xbc, 0x46, 0xff, 0x46, 0x8e, 0x60,
+ 0x9c, 0xa3, 0x60, 0x1d, 0xf8, 0x26, 0x72, 0xf5,
+ 0x72, 0x9d, 0x68, 0x80, 0x04, 0xf6, 0x0b, 0xa1,
+ 0x0a, 0xd5, 0xa7, 0x82, 0x3a, 0x3e, 0x47, 0xa8,
+ 0x5a, 0xde, 0x59, 0x4f, 0x7b, 0x07, 0xb3, 0xe9,
+ 0x24, 0x19, 0x3d, 0x34, 0x05, 0xec, 0xf1, 0xab,
+ 0x6e, 0x64, 0x8f, 0xd3, 0xe6, 0x41, 0x86, 0x80,
+ 0x70, 0xe3, 0x8d, 0x60, 0x9c, 0x34, 0x25, 0x01,
+ 0x07, 0x4d, 0x19, 0x41, 0x4e, 0x3d, 0x5c, 0x7e,
+ 0xa8, 0xf5, 0xcc, 0xd5, 0x7b, 0xe2, 0x7d, 0x3d,
+ 0x49, 0x86, 0x7d, 0x07, 0xb7, 0x10, 0xe3, 0x35,
+ 0xb8, 0x84, 0x6d, 0x76, 0xab, 0x17, 0xc6, 0x38,
+ 0xb4, 0xd3, 0x28, 0x57, 0xad, 0xd3, 0x88, 0x5a,
+ 0xda, 0xea, 0xc8, 0x94, 0xcc, 0x37, 0x19, 0xac,
+ 0x9c, 0x9f, 0x4b, 0x00, 0x15, 0xc0, 0xc8, 0xca,
+ 0x1f, 0x15, 0xaa, 0xe0, 0xdb, 0xf9, 0x2f, 0x57,
+ 0x1b, 0x24, 0xc7, 0x6f, 0x76, 0x29, 0xfb, 0xed,
+ 0x25, 0x0d, 0xc0, 0xfe, 0xbd, 0x5a, 0xbf, 0x20,
+ 0x08, 0x51, 0x05, 0xec, 0x71, 0xa3, 0xbf, 0xef,
+ 0x5e, 0x99, 0x75, 0xdb, 0x3c, 0x5f, 0x9a, 0x8c,
+ 0xbb, 0x19, 0x5c, 0x0e, 0x93, 0x19, 0xf8, 0x6a,
+ 0xbc, 0xf2, 0x12, 0x54, 0x2f, 0xcb, 0x28, 0x64,
+ 0x88, 0xb3, 0x92, 0x0d, 0x96, 0xd1, 0xa6, 0xe4,
+ 0x1f, 0xf1, 0x4d, 0xa4, 0xab, 0x1c, 0xee, 0x54,
+ 0xf2, 0xad, 0x29, 0x6d, 0x32, 0x37, 0xb2, 0x16,
+ 0x77, 0x5c, 0xdc, 0x2e, 0x54, 0xec, 0x75, 0x26,
+ 0xc6, 0x36, 0xd9, 0x17, 0x2c, 0xf1, 0x7a, 0xdc,
+ 0x4b, 0xf1, 0xe2, 0xd9, 0x95, 0xba, 0xac, 0x87,
+ 0xc1, 0xf3, 0x8e, 0x58, 0x08, 0xd8, 0x87, 0x60,
+ 0xc9, 0xee, 0x6a, 0xde, 0xa4, 0xd2, 0xfc, 0x0d,
+ 0xe5, 0x36, 0xc4, 0x5c, 0x52, 0xb3, 0x07, 0x54,
+ 0x65, 0x24, 0xc1, 0xb1, 0xd1, 0xb1, 0x53, 0x13,
+ 0x31, 0x79, 0x7f, 0x05, 0x76, 0xeb, 0x37, 0x59,
+ 0x15, 0x2b, 0xd1, 0x3f, 0xac, 0x08, 0x97, 0xeb,
+ 0x91, 0x98, 0xdf, 0x6c, 0x09, 0x0d, 0x04, 0x9f,
+ 0xdc, 0x3b, 0x0e, 0x60, 0x68, 0x47, 0x23, 0x15,
+ 0x16, 0xc6, 0x0b, 0x35, 0xf8, 0x77, 0xa2, 0x78,
+ 0x50, 0xd4, 0x64, 0x22, 0x33, 0xff, 0xfb, 0x93,
+ 0x71, 0x46, 0x50, 0x39, 0x1b, 0x9c, 0xea, 0x4e,
+ 0x8d, 0x0c, 0x37, 0xe5, 0x5c, 0x51, 0x3a, 0x31,
+ 0xb2, 0x85, 0x84, 0x3f, 0x41, 0xee, 0xa2, 0xc1,
+ 0xc6, 0x13, 0x3b, 0x54, 0x28, 0xd2, 0x18, 0x37,
+ 0xcc, 0x46, 0x9f, 0x6a, 0x91, 0x3d, 0x5a, 0x15,
+ 0x3c, 0x89, 0xa3, 0x61, 0x06, 0x7d, 0x2e, 0x78,
+ 0xbe, 0x7d, 0x40, 0xba, 0x2f, 0x95, 0xb1, 0x2f,
+ 0x87, 0x3b, 0x8a, 0xbe, 0x6a, 0xf4, 0xc2, 0x31,
+ 0x74, 0xee, 0x91, 0xe0, 0x23, 0xaa, 0x5d, 0x7f,
+ 0xdd, 0xf0, 0x44, 0x8c, 0x0b, 0x59, 0x2b, 0xfc,
+ 0x48, 0x3a, 0xdf, 0x07, 0x05, 0x38, 0x6c, 0xc9,
+ 0xeb, 0x18, 0x24, 0x68, 0x8d, 0x58, 0x98, 0xd3,
+ 0x31, 0xa3, 0xe4, 0x70, 0x59, 0xb1, 0x21, 0xbe,
+ 0x7e, 0x65, 0x7d, 0xb8, 0x04, 0xab, 0xf6, 0xe4,
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+ 0x7a, 0xbb, 0x61, 0x82, 0xfe, 0x71, 0x89, 0xb2,
+ 0x22, 0x7c, 0x8e, 0x83, 0x04, 0xce, 0xf6, 0x5d,
+ 0x84, 0x8f, 0x95, 0x6a, 0x7f, 0xad, 0xfd, 0x32,
+ 0x9c, 0x5e, 0xe4, 0x9c, 0x89, 0x60, 0x54, 0xaa,
+ 0x96, 0x72, 0xd2, 0xd7, 0x36, 0x85, 0xa9, 0x45,
+ 0xd2, 0x2a, 0xa1, 0x81, 0x49, 0x6f, 0x7e, 0x04,
+ 0xfa, 0xe2, 0xfe, 0x90, 0x26, 0x77, 0x5a, 0x33,
+ 0xb8, 0x04, 0x9a, 0x7a, 0xe6, 0x4c, 0x4f, 0xad,
+ 0x72, 0x96, 0x08, 0x28, 0x58, 0x13, 0xf8, 0xc4,
+ 0x1c, 0xf0, 0xc3, 0x45, 0x95, 0x49, 0x20, 0x8c,
+ 0x9f, 0x39, 0x70, 0xe1, 0x77, 0xfe, 0xd5, 0x4b,
+ 0xaf, 0x86, 0xda, 0xef, 0x22, 0x06, 0x83, 0x36,
+ 0x29, 0x12, 0x11, 0x40, 0xbc, 0x3b, 0x86, 0xaa,
+ 0xaa, 0x65, 0x60, 0xc3, 0x80, 0xca, 0xed, 0xa9,
+ 0xf3, 0xb0, 0x79, 0x96, 0xa2, 0x55, 0x27, 0x28,
+ 0x55, 0x73, 0x26, 0xa5, 0x50, 0xea, 0x92, 0x4b,
+ 0x3c, 0x5c, 0x82, 0x33, 0xf0, 0x01, 0x3f, 0x03,
+ 0xc1, 0x08, 0x05, 0xbf, 0x98, 0xf4, 0x9b, 0x6d,
+ 0xa5, 0xa8, 0xb4, 0x82, 0x0c, 0x06, 0xfa, 0xff,
+ 0x2d, 0x08, 0xf3, 0x05, 0x4f, 0x57, 0x2a, 0x39,
+ 0xd4, 0x83, 0x0d, 0x75, 0x51, 0xd8, 0x5b, 0x1b,
+ 0xd3, 0x51, 0x5a, 0x32, 0x2a, 0x9b, 0x32, 0xb2,
+ 0xf2, 0xa4, 0x96, 0x12, 0xf2, 0xae, 0x40, 0x34,
+ 0x67, 0xa8, 0xf5, 0x44, 0xd5, 0x35, 0x53, 0xfe,
+ 0xa3, 0x60, 0x96, 0x63, 0x0f, 0x1f, 0x6e, 0xb0,
+ 0x5a, 0x42, 0xa6, 0xfc, 0x51, 0x0b, 0x60, 0x27,
+ 0xbc, 0x06, 0x71, 0xed, 0x65, 0x5b, 0x23, 0x86,
+ 0x4a, 0x07, 0x3b, 0x22, 0x07, 0x46, 0xe6, 0x90,
+ 0x3e, 0xf3, 0x25, 0x50, 0x1b, 0x4c, 0x7f, 0x03,
+ 0x08, 0xa8, 0x36, 0x6b, 0x87, 0xe5, 0xe3, 0xdb,
+ 0x9a, 0x38, 0x83, 0xff, 0x9f, 0x1a, 0x9f, 0x57,
+ 0xa4, 0x2a, 0xf6, 0x37, 0xbc, 0x1a, 0xff, 0xc9,
+ 0x1e, 0x35, 0x0c, 0xc3, 0x7c, 0xa3, 0xb2, 0xe5,
+ 0xd2, 0xc6, 0xb4, 0x57, 0x47, 0xe4, 0x32, 0x16,
+ 0x6d, 0xa9, 0xae, 0x64, 0xe6, 0x2d, 0x8d, 0xc5,
+ 0x8d, 0x50, 0x8e, 0xe8, 0x1a, 0x22, 0x34, 0x2a,
+ 0xd9, 0xeb, 0x51, 0x90, 0x4a, 0xb1, 0x41, 0x7d,
+ 0x64, 0xf9, 0xb9, 0x0d, 0xf6, 0x23, 0x33, 0xb0,
+ 0x33, 0xf4, 0xf7, 0x3f, 0x27, 0x84, 0xc6, 0x0f,
+ 0x54, 0xa5, 0xc0, 0x2e, 0xec, 0x0b, 0x3a, 0x48,
+ 0x6e, 0x80, 0x35, 0x81, 0x43, 0x9b, 0x90, 0xb1,
+ 0xd0, 0x2b, 0xea, 0x21, 0xdc, 0xda, 0x5b, 0x09,
+ 0xf4, 0xcc, 0x10, 0xb4, 0xc7, 0xfe, 0x79, 0x51,
+ 0xc3, 0xc5, 0xac, 0x88, 0x74, 0x84, 0x0b, 0x4b,
+ 0xca, 0x79, 0x16, 0x29, 0xfb, 0x69, 0x54, 0xdf,
+ 0x41, 0x7e, 0xe9, 0xc7, 0x8e, 0xea, 0xa5, 0xfe,
+ 0xfc, 0x76, 0x0e, 0x90, 0xc4, 0x92, 0x38, 0xad,
+ 0x7b, 0x48, 0xe6, 0x6e, 0xf7, 0x21, 0xfd, 0x4e,
+ 0x93, 0x0a, 0x7b, 0x41, 0x83, 0x68, 0xfb, 0x57,
+ 0x51, 0x76, 0x34, 0xa9, 0x6c, 0x00, 0xaa, 0x4f,
+ 0x66, 0x65, 0x98, 0x4a, 0x4f, 0xa3, 0xa0, 0xef,
+ 0x69, 0x3f, 0xe3, 0x1c, 0x92, 0x8c, 0xfd, 0xd8,
+ 0xe8, 0xde, 0x7c, 0x7f, 0x3e, 0x84, 0x8e, 0x69,
+ 0x3c, 0xf1, 0xf2, 0x05, 0x46, 0xdc, 0x2f, 0x9d,
+ 0x5e, 0x6e, 0x4c, 0xfb, 0xb5, 0x99, 0x2a, 0x59,
+ 0x63, 0xc1, 0x34, 0xbc, 0x57, 0xc0, 0x0d, 0xb9,
+ 0x61, 0x25, 0xf3, 0x33, 0x23, 0x51, 0xb6, 0x0d,
+ 0x07, 0xa6, 0xab, 0x94, 0x4a, 0xb7, 0x2a, 0xea,
+ 0xee, 0xac, 0xa3, 0xc3, 0x04, 0x8b, 0x0e, 0x56,
+ 0xfe, 0x44, 0xa7, 0x39, 0xe2, 0xed, 0xed, 0xb4,
+ 0x22, 0x2b, 0xac, 0x12, 0x32, 0x28, 0x91, 0xd8,
+ 0xa5, 0xab, 0xff, 0x5f, 0xe0, 0x4b, 0xda, 0x78,
+ 0x17, 0xda, 0xf1, 0x01, 0x5b, 0xcd, 0xe2, 0x5f,
+ 0x50, 0x45, 0x73, 0x2b, 0xe4, 0x76, 0x77, 0xf4,
+ 0x64, 0x1d, 0x43, 0xfb, 0x84, 0x7a, 0xea, 0x91,
+ 0xae, 0xf9, 0x9e, 0xb7, 0xb4, 0xb0, 0x91, 0x5f,
+ 0x16, 0x35, 0x9a, 0x11, 0xb8, 0xc7, 0xc1, 0x8c,
+ 0xc6, 0x10, 0x8d, 0x2f, 0x63, 0x4a, 0xa7, 0x57,
+ 0x3a, 0x51, 0xd6, 0x32, 0x2d, 0x64, 0x72, 0xd4,
+ 0x66, 0xdc, 0x10, 0xa6, 0x67, 0xd6, 0x04, 0x23,
+ 0x9d, 0x0a, 0x11, 0x77, 0xdd, 0x37, 0x94, 0x17,
+ 0x3c, 0xbf, 0x8b, 0x65, 0xb0, 0x2e, 0x5e, 0x66,
+ 0x47, 0x64, 0xac, 0xdd, 0xf0, 0x84, 0xfd, 0x39,
+ 0xfa, 0x15, 0x5d, 0xef, 0xae, 0xca, 0xc1, 0x36,
+ 0xa7, 0x5c, 0xbf, 0xc7, 0x08, 0xc2, 0x66, 0x00,
+ 0x74, 0x74, 0x4e, 0x27, 0x3f, 0x55, 0x8a, 0xb7,
+ 0x38, 0x66, 0x83, 0x6d, 0xcf, 0x99, 0x9e, 0x60,
+ 0x8f, 0xdd, 0x2e, 0x62, 0x22, 0x0e, 0xef, 0x0c,
+ 0x98, 0xa7, 0x85, 0x74, 0x3b, 0x9d, 0xec, 0x9e,
+ 0xa9, 0x19, 0x72, 0xa5, 0x7f, 0x2c, 0x39, 0xb7,
+ 0x7d, 0xb7, 0xf1, 0x12, 0x65, 0x27, 0x4b, 0x5a,
+ 0xde, 0x17, 0xfe, 0xad, 0x44, 0xf3, 0x20, 0x4d,
+ 0xfd, 0xe4, 0x1f, 0xb5, 0x81, 0xb0, 0x36, 0x37,
+ 0x08, 0x6f, 0xc3, 0x0c, 0xe9, 0x85, 0x98, 0x82,
+ 0xa9, 0x62, 0x0c, 0xc4, 0x97, 0xc0, 0x50, 0xc8,
+ 0xa7, 0x3c, 0x50, 0x9f, 0x43, 0xb9, 0xcd, 0x5e,
+ 0x4d, 0xfa, 0x1c, 0x4b, 0x0b, 0xa9, 0x98, 0x85,
+ 0x38, 0x92, 0xac, 0x8d, 0xe4, 0xad, 0x9b, 0x98,
+ 0xab, 0xd9, 0x38, 0xac, 0x62, 0x52, 0xa3, 0x22,
+ 0x63, 0x0f, 0xbf, 0x95, 0x48, 0xdf, 0x69, 0xe7,
+ 0x8b, 0x33, 0xd5, 0xb2, 0xbd, 0x05, 0x49, 0x49,
+ 0x9d, 0x57, 0x73, 0x19, 0x33, 0xae, 0xfa, 0x33,
+ 0xf1, 0x19, 0xa8, 0x80, 0xce, 0x04, 0x9f, 0xbc,
+ 0x1d, 0x65, 0x82, 0x1b, 0xe5, 0x3a, 0x51, 0xc8,
+ 0x1c, 0x21, 0xe3, 0x5d, 0xf3, 0x7d, 0x9b, 0x2f,
+ 0x2c, 0x1d, 0x4a, 0x7f, 0x9b, 0x68, 0x35, 0xa3,
+ 0xb2, 0x50, 0xf7, 0x62, 0x79, 0xcd, 0xf4, 0x98,
+ 0x4f, 0xe5, 0x63, 0x7c, 0x3e, 0x45, 0x31, 0x8c,
+ 0x16, 0xa0, 0x12, 0xc8, 0x58, 0xce, 0x39, 0xa6,
+ 0xbc, 0x54, 0xdb, 0xc5, 0xe0, 0xd5, 0xba, 0xbc,
+ 0xb9, 0x04, 0xf4, 0x8d, 0xe8, 0x2f, 0x15, 0x9d,
+};
+
+/* 100 test cases */
+static struct crc_test {
+ uint32_t crc; /* random starting crc */
+ uint32_t start; /* random 6 bit offset in buf */
+ uint32_t length; /* random 11 bit length of test */
+ uint32_t crc32c_le; /* expected crc32c_le result */
+} test[] =
+{
+ {0x674bf11d, 0x00000038, 0x00000542, 0xf6e93d6c},
+ {0x35c672c6, 0x0000003a, 0x000001aa, 0x0fe92aca},
+ {0x496da28e, 0x00000039, 0x000005af, 0x52e1ebb8},
+ {0x09a9b90e, 0x00000027, 0x000001f8, 0x0798af9a},
+ {0xdc97e5a9, 0x00000025, 0x000003b6, 0x18eb3152},
+ {0x47c58900, 0x0000000a, 0x000000b9, 0xd00d08c7},
+ {0x292561e8, 0x0000000c, 0x00000403, 0x8ba966bc},
+ {0x415037f6, 0x00000003, 0x00000676, 0x11d694a2},
+ {0x3466e707, 0x00000026, 0x00000042, 0x6ab3208d},
+ {0xafd1281b, 0x00000023, 0x000002ee, 0xba4603c5},
+ {0xd3857b18, 0x00000028, 0x000004a2, 0xe6071c6f},
+ {0x1d825a8f, 0x0000002b, 0x0000050b, 0x179ec30a},
+ {0x5033e3bc, 0x0000000b, 0x00000078, 0x0903beb8},
+ {0x94f1fb5e, 0x0000000f, 0x000003a2, 0x6a7cb4fa},
+ {0xc9a0fe14, 0x00000009, 0x00000473, 0xdb535801},
+ {0x88a034b1, 0x0000001c, 0x000005ad, 0x92bed597},
+ {0xf0f72239, 0x00000020, 0x0000026d, 0x192a3f1b},
+ {0xcc20a5e3, 0x0000003b, 0x0000067a, 0xccbaec1a},
+ {0xce589c95, 0x0000002b, 0x00000641, 0x7eabae4d},
+ {0x78edc885, 0x00000035, 0x000005be, 0x28c72982},
+ {0x9d40a377, 0x0000003b, 0x00000038, 0xc3cd4d18},
+ {0x703d0e01, 0x0000003c, 0x000006f1, 0xbca8f0e7},
+ {0x776bf505, 0x0000000f, 0x000005b2, 0x713f60b3},
+ {0x4a3e7854, 0x00000027, 0x000004b8, 0xebd08fd5},
+ {0x209172dd, 0x0000003b, 0x00000356, 0x64406c59},
+ {0x3ba4cc5b, 0x0000002f, 0x00000203, 0x7421890e},
+ {0xfc62f297, 0x00000000, 0x00000079, 0xe9347603},
+ {0x64280b8b, 0x00000016, 0x000007ab, 0x1bef9060},
+ {0x97dd724b, 0x00000033, 0x000007ad, 0x34720072},
+ {0x61394b52, 0x00000035, 0x00000571, 0x48310f59},
+ {0x29b4faff, 0x00000024, 0x0000006e, 0x783a4213},
+ {0x29bfb1dc, 0x0000000b, 0x00000244, 0x9e8efd41},
+ {0x86ae934b, 0x00000035, 0x00000104, 0xfc3d34a5},
+ {0xc4c1024e, 0x0000002e, 0x000006b1, 0x17a52ae2},
+ {0x3287a80a, 0x00000026, 0x00000496, 0x886d935a},
+ {0xa4db423e, 0x00000023, 0x0000045d, 0xeaaeaeb2},
+ {0x7a1078df, 0x00000015, 0x0000014a, 0x8e900a4b},
+ {0x6048bd5b, 0x00000006, 0x0000006a, 0xd74662b1},
+ {0xd8f9ea20, 0x0000003d, 0x00000277, 0xd26752ba},
+ {0xea5ec3b4, 0x0000002a, 0x000004fe, 0x8b1fcd62},
+ {0x2dfb005d, 0x00000016, 0x00000345, 0xf54342fe},
+ {0x5a214ade, 0x00000020, 0x000005b6, 0x5b95b988},
+ {0xf0ab9cca, 0x00000032, 0x00000515, 0x2e1176be},
+ {0x91b444f9, 0x0000002e, 0x000007f8, 0x66120546},
+ {0x1b5d2ddb, 0x0000002e, 0x0000012c, 0xf256a5cc},
+ {0xd824d1bb, 0x0000003a, 0x000007b5, 0x4af1dd69},
+ {0x0470180c, 0x00000034, 0x000001f0, 0x56f0a04a},
+ {0xffaa3a3f, 0x00000036, 0x00000299, 0x74f6b6b2},
+ {0x6406cfeb, 0x00000023, 0x00000600, 0x085951fd},
+ {0xb24aaa38, 0x0000003e, 0x000004a1, 0xc65387eb},
+ {0x58b2ab7c, 0x00000039, 0x000002b4, 0x1ca9257b},
+ {0x3db85970, 0x00000006, 0x000002b6, 0xfd196d76},
+ {0x857830c5, 0x00000003, 0x00000590, 0x5ef88339},
+ {0xe1fcd978, 0x0000003e, 0x000007d8, 0x2c3714d9},
+ {0xb982a768, 0x00000016, 0x000006e0, 0x58576548},
+ {0x1d581ce8, 0x0000001e, 0x0000058b, 0xfd7c57de},
+ {0x2456719b, 0x00000025, 0x00000503, 0xd5fedd59},
+ {0xfae6d8f2, 0x00000000, 0x0000055d, 0x1cc3b17b},
+ {0xcba828e3, 0x00000039, 0x000002ce, 0x270eed73},
+ {0x13d25952, 0x0000000a, 0x0000072d, 0x91ecbb11},
+ {0x0342be3f, 0x00000015, 0x00000599, 0x05ed8d0c},
+ {0xeaa344e0, 0x00000014, 0x000004d8, 0x0b09ad5b},
+ {0xbbb52021, 0x0000003b, 0x00000272, 0xf8d511fb},
+ {0xb66384dc, 0x0000001d, 0x000007fc, 0x5ad832cc},
+ {0x616c01b6, 0x00000022, 0x000002c8, 0x1214d196},
+ {0xce2bdaad, 0x00000016, 0x0000062a, 0x5747218a},
+ {0x00fe84d7, 0x00000005, 0x00000205, 0xde8f14de},
+ {0xbebdcb4c, 0x00000006, 0x0000055d, 0x3563b7b9},
+ {0xd8b1a02a, 0x00000010, 0x00000387, 0x071475d0},
+ {0x3b96cad2, 0x00000036, 0x00000347, 0x54c79d60},
+ {0xc94c1ed7, 0x00000005, 0x0000038b, 0x4c53eee6},
+ {0x1aad454e, 0x00000025, 0x000002b2, 0x10137a3c},
+ {0xa4fec9a6, 0x00000000, 0x000006d6, 0xaa9d6c73},
+ {0x1bbe71e2, 0x0000001f, 0x000002fd, 0xb63d23e7},
+ {0x4201c7e4, 0x00000002, 0x000002b7, 0x7f53e9cf},
+ {0x23fddc96, 0x00000003, 0x00000627, 0x13c1cd83},
+ {0xd82ba25c, 0x00000016, 0x0000063e, 0x49ff5867},
+ {0x786f2032, 0x0000002d, 0x0000060f, 0x8467f211},
+ {0xfebe4e1f, 0x0000002a, 0x000004f2, 0x3f9683b2},
+ {0x1a6e0a39, 0x00000008, 0x00000672, 0x76a3f874},
+ {0x56000ab8, 0x0000000e, 0x000000e5, 0x863b702f},
+ {0x4717fe0c, 0x00000000, 0x000006ec, 0xdc6c58ff},
+ {0xd5d5d68e, 0x0000003c, 0x000003a3, 0x0622cc95},
+ {0xc25dd6c6, 0x00000024, 0x000006c0, 0xe85605cd},
+ {0xe9b11300, 0x00000023, 0x00000683, 0x31da5f06},
+ {0x95cd285e, 0x00000001, 0x00000047, 0xa1f2e784},
+ {0xd9245a25, 0x0000001e, 0x000003a6, 0xb07cc616},
+ {0x103279db, 0x00000006, 0x0000039b, 0xbf943b6c},
+ {0x1cba3172, 0x00000027, 0x000001c8, 0x2c01af1c},
+ {0x8f613739, 0x0000000c, 0x000001df, 0x0fe5f56d},
+ {0x1c6aa90d, 0x0000001b, 0x0000053c, 0xf8943b2d},
+ {0xaabe5b93, 0x0000003d, 0x00000715, 0xe4d89272},
+ {0xf15dd038, 0x00000006, 0x000006db, 0x7c2f6bbb},
+ {0x584dd49c, 0x00000020, 0x000007bc, 0xabbf388b},
+ {0x5d8c9506, 0x00000020, 0x00000470, 0x1dca1f4e},
+ {0xb80d17b0, 0x00000032, 0x00000346, 0x5c170e23},
+ {0xdaf0592e, 0x00000023, 0x000007b0, 0xc0e9d672},
+ {0x4793cc85, 0x0000000d, 0x00000706, 0xc18bdc86},
+ {0x82ebf64e, 0x00000009, 0x000007c3, 0xa874fcdd},
+ {0xb18a0319, 0x00000026, 0x000007db, 0x9dc0bb48},
+};
+
+static int
+crc32c_test(void)
+{
+ int i;
+ int errors = 0;
+ int bytes = 0;
+ struct timeval start, stop;
+ uint64_t usec;
+
+ /* keep static to prevent cache warming code from
+ * getting eliminated by the compiler */
+ static uint32_t crc;
+
+ /* pre-warm the cache */
+ for (i = 0; i < 100; i++) {
+ bytes += 2*test[i].length;
+
+ crc ^= crc32c_le(test[i].crc, test_buf +
+ test[i].start, test[i].length);
+ }
+
+ gettimeofday(&start, NULL);
+ for (i = 0; i < 100; i++) {
+ if (test[i].crc32c_le != crc32c_le(test[i].crc, test_buf +
+ test[i].start, test[i].length))
+ errors++;
+ }
+ gettimeofday(&stop, NULL);
+
+ usec = stop.tv_usec - start.tv_usec +
+ 1000000 * (stop.tv_sec - start.tv_sec);
+
+ if (errors)
+ printf("crc32c: %d self tests failed\n", errors);
+ else {
+ printf("crc32c: tests passed, %d bytes in %" PRIu64 " usec\n",
+ bytes, usec);
+ }
+
+ return errors;
+}
+
+#endif /* _LIBFROG_CRC32SELFTEST_H_ */
diff --git a/io/Makefile b/io/Makefile
index 6270fc16..fb253313 100644
--- a/io/Makefile
+++ b/io/Makefile
@@ -9,10 +9,10 @@ LTCOMMAND = xfs_io
LSRCFILES = xfs_bmap.sh xfs_freeze.sh xfs_mkfile.sh
HFILES = init.h io.h
CFILES = init.c \
- attr.c bmap.c cowextsize.c encrypt.c file.c freeze.c fsync.c \
- getrusage.c imap.c inject.c label.c link.c mmap.c open.c parent.c \
- pread.c prealloc.c pwrite.c reflink.c resblks.c scrub.c seek.c \
- shutdown.c stat.c swapext.c sync.c truncate.c utimes.c
+ attr.c bmap.c crc32selftest.c cowextsize.c encrypt.c file.c freeze.c \
+ fsync.c getrusage.c imap.c inject.c label.c link.c mmap.c open.c \
+ parent.c pread.c prealloc.c pwrite.c reflink.c resblks.c scrub.c \
+ seek.c shutdown.c stat.c swapext.c sync.c truncate.c utimes.c
LLDLIBS = $(LIBXCMD) $(LIBHANDLE) $(LIBFROG) $(LIBPTHREAD)
LTDEPENDENCIES = $(LIBXCMD) $(LIBHANDLE) $(LIBFROG)
diff --git a/io/crc32selftest.c b/io/crc32selftest.c
new file mode 100644
index 00000000..c0b4b2f4
--- /dev/null
+++ b/io/crc32selftest.c
@@ -0,0 +1,51 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2018 Oracle, Inc.
+ * All Rights Reserved.
+ */
+
+#include "platform_defs.h"
+#include "command.h"
+#include "init.h"
+#include "io.h"
+#include "crc32c.h"
+#include "crc32selftest.h"
+
+static int
+crc32selftest_f(
+ int argc,
+ char **argv)
+{
+ int c;
+ int errors;
+
+ while ((c = getopt(argc, argv, "")) != EOF) {
+ switch (c) {
+ default:
+ fprintf(stderr,
+_("Bad option for crc32selftest command.\n"));
+ return 0;
+ }
+ }
+
+ errors = crc32c_test();
+ return errors == 0 ? 0 : 1;
+}
+
+static const cmdinfo_t crc32selftest_cmd = {
+ .name = "crc32selftest",
+ .cfunc = crc32selftest_f,
+ .argmin = 0,
+ .argmax = 0,
+ .canpush = 0,
+ .args = "",
+ .flags = CMD_FLAG_ONESHOT | CMD_FLAG_FOREIGN_OK |
+ CMD_NOFILE_OK | CMD_NOMAP_OK,
+ .oneline = N_("crc32c self test"),
+};
+
+void
+crc32selftest_init(void)
+{
+ add_command(&crc32selftest_cmd);
+}
diff --git a/io/init.c b/io/init.c
index b5eade39..53b754e4 100644
--- a/io/init.c
+++ b/io/init.c
@@ -85,6 +85,7 @@ init_commands(void)
sync_range_init();
truncate_init();
utimes_init();
+ crc32selftest_init();
}
/*
diff --git a/io/io.h b/io/io.h
index 9278ad00..847b4759 100644
--- a/io/io.h
+++ b/io/io.h
@@ -182,3 +182,4 @@ extern void log_writes_init(void);
extern void scrub_init(void);
extern void repair_init(void);
+extern void crc32selftest_init(void);
diff --git a/libfrog/crc32.c b/libfrog/crc32.c
index 1d52f683..0b8e92f3 100644
--- a/libfrog/crc32.c
+++ b/libfrog/crc32.c
@@ -180,674 +180,7 @@ u32 __pure crc32c_le(u32 crc, unsigned char const *p, size_t len)
#ifdef CRC32_SELFTEST
-
-/* 4096 random bytes */
-static u8 __attribute__((__aligned__(8))) test_buf[] =
-{
- 0x5b, 0x85, 0x21, 0xcb, 0x09, 0x68, 0x7d, 0x30,
- 0xc7, 0x69, 0xd7, 0x30, 0x92, 0xde, 0x59, 0xe4,
- 0xc9, 0x6e, 0x8b, 0xdb, 0x98, 0x6b, 0xaa, 0x60,
- 0xa8, 0xb5, 0xbc, 0x6c, 0xa9, 0xb1, 0x5b, 0x2c,
- 0xea, 0xb4, 0x92, 0x6a, 0x3f, 0x79, 0x91, 0xe4,
- 0xe9, 0x70, 0x51, 0x8c, 0x7f, 0x95, 0x6f, 0x1a,
- 0x56, 0xa1, 0x5c, 0x27, 0x03, 0x67, 0x9f, 0x3a,
- 0xe2, 0x31, 0x11, 0x29, 0x6b, 0x98, 0xfc, 0xc4,
- 0x53, 0x24, 0xc5, 0x8b, 0xce, 0x47, 0xb2, 0xb9,
- 0x32, 0xcb, 0xc1, 0xd0, 0x03, 0x57, 0x4e, 0xd4,
- 0xe9, 0x3c, 0xa1, 0x63, 0xcf, 0x12, 0x0e, 0xca,
- 0xe1, 0x13, 0xd1, 0x93, 0xa6, 0x88, 0x5c, 0x61,
- 0x5b, 0xbb, 0xf0, 0x19, 0x46, 0xb4, 0xcf, 0x9e,
- 0xb6, 0x6b, 0x4c, 0x3a, 0xcf, 0x60, 0xf9, 0x7a,
- 0x8d, 0x07, 0x63, 0xdb, 0x40, 0xe9, 0x0b, 0x6f,
- 0xad, 0x97, 0xf1, 0xed, 0xd0, 0x1e, 0x26, 0xfd,
- 0xbf, 0xb7, 0xc8, 0x04, 0x94, 0xf8, 0x8b, 0x8c,
- 0xf1, 0xab, 0x7a, 0xd4, 0xdd, 0xf3, 0xe8, 0x88,
- 0xc3, 0xed, 0x17, 0x8a, 0x9b, 0x40, 0x0d, 0x53,
- 0x62, 0x12, 0x03, 0x5f, 0x1b, 0x35, 0x32, 0x1f,
- 0xb4, 0x7b, 0x93, 0x78, 0x0d, 0xdb, 0xce, 0xa4,
- 0xc0, 0x47, 0xd5, 0xbf, 0x68, 0xe8, 0x5d, 0x74,
- 0x8f, 0x8e, 0x75, 0x1c, 0xb2, 0x4f, 0x9a, 0x60,
- 0xd1, 0xbe, 0x10, 0xf4, 0x5c, 0xa1, 0x53, 0x09,
- 0xa5, 0xe0, 0x09, 0x54, 0x85, 0x5c, 0xdc, 0x07,
- 0xe7, 0x21, 0x69, 0x7b, 0x8a, 0xfd, 0x90, 0xf1,
- 0x22, 0xd0, 0xb4, 0x36, 0x28, 0xe6, 0xb8, 0x0f,
- 0x39, 0xde, 0xc8, 0xf3, 0x86, 0x60, 0x34, 0xd2,
- 0x5e, 0xdf, 0xfd, 0xcf, 0x0f, 0xa9, 0x65, 0xf0,
- 0xd5, 0x4d, 0x96, 0x40, 0xe3, 0xdf, 0x3f, 0x95,
- 0x5a, 0x39, 0x19, 0x93, 0xf4, 0x75, 0xce, 0x22,
- 0x00, 0x1c, 0x93, 0xe2, 0x03, 0x66, 0xf4, 0x93,
- 0x73, 0x86, 0x81, 0x8e, 0x29, 0x44, 0x48, 0x86,
- 0x61, 0x7c, 0x48, 0xa3, 0x43, 0xd2, 0x9c, 0x8d,
- 0xd4, 0x95, 0xdd, 0xe1, 0x22, 0x89, 0x3a, 0x40,
- 0x4c, 0x1b, 0x8a, 0x04, 0xa8, 0x09, 0x69, 0x8b,
- 0xea, 0xc6, 0x55, 0x8e, 0x57, 0xe6, 0x64, 0x35,
- 0xf0, 0xc7, 0x16, 0x9f, 0x5d, 0x5e, 0x86, 0x40,
- 0x46, 0xbb, 0xe5, 0x45, 0x88, 0xfe, 0xc9, 0x63,
- 0x15, 0xfb, 0xf5, 0xbd, 0x71, 0x61, 0xeb, 0x7b,
- 0x78, 0x70, 0x07, 0x31, 0x03, 0x9f, 0xb2, 0xc8,
- 0xa7, 0xab, 0x47, 0xfd, 0xdf, 0xa0, 0x78, 0x72,
- 0xa4, 0x2a, 0xe4, 0xb6, 0xba, 0xc0, 0x1e, 0x86,
- 0x71, 0xe6, 0x3d, 0x18, 0x37, 0x70, 0xe6, 0xff,
- 0xe0, 0xbc, 0x0b, 0x22, 0xa0, 0x1f, 0xd3, 0xed,
- 0xa2, 0x55, 0x39, 0xab, 0xa8, 0x13, 0x73, 0x7c,
- 0x3f, 0xb2, 0xd6, 0x19, 0xac, 0xff, 0x99, 0xed,
- 0xe8, 0xe6, 0xa6, 0x22, 0xe3, 0x9c, 0xf1, 0x30,
- 0xdc, 0x01, 0x0a, 0x56, 0xfa, 0xe4, 0xc9, 0x99,
- 0xdd, 0xa8, 0xd8, 0xda, 0x35, 0x51, 0x73, 0xb4,
- 0x40, 0x86, 0x85, 0xdb, 0x5c, 0xd5, 0x85, 0x80,
- 0x14, 0x9c, 0xfd, 0x98, 0xa9, 0x82, 0xc5, 0x37,
- 0xff, 0x32, 0x5d, 0xd0, 0x0b, 0xfa, 0xdc, 0x04,
- 0x5e, 0x09, 0xd2, 0xca, 0x17, 0x4b, 0x1a, 0x8e,
- 0x15, 0xe1, 0xcc, 0x4e, 0x52, 0x88, 0x35, 0xbd,
- 0x48, 0xfe, 0x15, 0xa0, 0x91, 0xfd, 0x7e, 0x6c,
- 0x0e, 0x5d, 0x79, 0x1b, 0x81, 0x79, 0xd2, 0x09,
- 0x34, 0x70, 0x3d, 0x81, 0xec, 0xf6, 0x24, 0xbb,
- 0xfb, 0xf1, 0x7b, 0xdf, 0x54, 0xea, 0x80, 0x9b,
- 0xc7, 0x99, 0x9e, 0xbd, 0x16, 0x78, 0x12, 0x53,
- 0x5e, 0x01, 0xa7, 0x4e, 0xbd, 0x67, 0xe1, 0x9b,
- 0x4c, 0x0e, 0x61, 0x45, 0x97, 0xd2, 0xf0, 0x0f,
- 0xfe, 0x15, 0x08, 0xb7, 0x11, 0x4c, 0xe7, 0xff,
- 0x81, 0x53, 0xff, 0x91, 0x25, 0x38, 0x7e, 0x40,
- 0x94, 0xe5, 0xe0, 0xad, 0xe6, 0xd9, 0x79, 0xb6,
- 0x92, 0xc9, 0xfc, 0xde, 0xc3, 0x1a, 0x23, 0xbb,
- 0xdd, 0xc8, 0x51, 0x0c, 0x3a, 0x72, 0xfa, 0x73,
- 0x6f, 0xb7, 0xee, 0x61, 0x39, 0x03, 0x01, 0x3f,
- 0x7f, 0x94, 0x2e, 0x2e, 0xba, 0x3a, 0xbb, 0xb4,
- 0xfa, 0x6a, 0x17, 0xfe, 0xea, 0xef, 0x5e, 0x66,
- 0x97, 0x3f, 0x32, 0x3d, 0xd7, 0x3e, 0xb1, 0xf1,
- 0x6c, 0x14, 0x4c, 0xfd, 0x37, 0xd3, 0x38, 0x80,
- 0xfb, 0xde, 0xa6, 0x24, 0x1e, 0xc8, 0xca, 0x7f,
- 0x3a, 0x93, 0xd8, 0x8b, 0x18, 0x13, 0xb2, 0xe5,
- 0xe4, 0x93, 0x05, 0x53, 0x4f, 0x84, 0x66, 0xa7,
- 0x58, 0x5c, 0x7b, 0x86, 0x52, 0x6d, 0x0d, 0xce,
- 0xa4, 0x30, 0x7d, 0xb6, 0x18, 0x9f, 0xeb, 0xff,
- 0x22, 0xbb, 0x72, 0x29, 0xb9, 0x44, 0x0b, 0x48,
- 0x1e, 0x84, 0x71, 0x81, 0xe3, 0x6d, 0x73, 0x26,
- 0x92, 0xb4, 0x4d, 0x2a, 0x29, 0xb8, 0x1f, 0x72,
- 0xed, 0xd0, 0xe1, 0x64, 0x77, 0xea, 0x8e, 0x88,
- 0x0f, 0xef, 0x3f, 0xb1, 0x3b, 0xad, 0xf9, 0xc9,
- 0x8b, 0xd0, 0xac, 0xc6, 0xcc, 0xa9, 0x40, 0xcc,
- 0x76, 0xf6, 0x3b, 0x53, 0xb5, 0x88, 0xcb, 0xc8,
- 0x37, 0xf1, 0xa2, 0xba, 0x23, 0x15, 0x99, 0x09,
- 0xcc, 0xe7, 0x7a, 0x3b, 0x37, 0xf7, 0x58, 0xc8,
- 0x46, 0x8c, 0x2b, 0x2f, 0x4e, 0x0e, 0xa6, 0x5c,
- 0xea, 0x85, 0x55, 0xba, 0x02, 0x0e, 0x0e, 0x48,
- 0xbc, 0xe1, 0xb1, 0x01, 0x35, 0x79, 0x13, 0x3d,
- 0x1b, 0xc0, 0x53, 0x68, 0x11, 0xe7, 0x95, 0x0f,
- 0x9d, 0x3f, 0x4c, 0x47, 0x7b, 0x4d, 0x1c, 0xae,
- 0x50, 0x9b, 0xcb, 0xdd, 0x05, 0x8d, 0x9a, 0x97,
- 0xfd, 0x8c, 0xef, 0x0c, 0x1d, 0x67, 0x73, 0xa8,
- 0x28, 0x36, 0xd5, 0xb6, 0x92, 0x33, 0x40, 0x75,
- 0x0b, 0x51, 0xc3, 0x64, 0xba, 0x1d, 0xc2, 0xcc,
- 0xee, 0x7d, 0x54, 0x0f, 0x27, 0x69, 0xa7, 0x27,
- 0x63, 0x30, 0x29, 0xd9, 0xc8, 0x84, 0xd8, 0xdf,
- 0x9f, 0x68, 0x8d, 0x04, 0xca, 0xa6, 0xc5, 0xc7,
- 0x7a, 0x5c, 0xc8, 0xd1, 0xcb, 0x4a, 0xec, 0xd0,
- 0xd8, 0x20, 0x69, 0xc5, 0x17, 0xcd, 0x78, 0xc8,
- 0x75, 0x23, 0x30, 0x69, 0xc9, 0xd4, 0xea, 0x5c,
- 0x4f, 0x6b, 0x86, 0x3f, 0x8b, 0xfe, 0xee, 0x44,
- 0xc9, 0x7c, 0xb7, 0xdd, 0x3e, 0xe5, 0xec, 0x54,
- 0x03, 0x3e, 0xaa, 0x82, 0xc6, 0xdf, 0xb2, 0x38,
- 0x0e, 0x5d, 0xb3, 0x88, 0xd9, 0xd3, 0x69, 0x5f,
- 0x8f, 0x70, 0x8a, 0x7e, 0x11, 0xd9, 0x1e, 0x7b,
- 0x38, 0xf1, 0x42, 0x1a, 0xc0, 0x35, 0xf5, 0xc7,
- 0x36, 0x85, 0xf5, 0xf7, 0xb8, 0x7e, 0xc7, 0xef,
- 0x18, 0xf1, 0x63, 0xd6, 0x7a, 0xc6, 0xc9, 0x0e,
- 0x4d, 0x69, 0x4f, 0x84, 0xef, 0x26, 0x41, 0x0c,
- 0xec, 0xc7, 0xe0, 0x7e, 0x3c, 0x67, 0x01, 0x4c,
- 0x62, 0x1a, 0x20, 0x6f, 0xee, 0x47, 0x4d, 0xc0,
- 0x99, 0x13, 0x8d, 0x91, 0x4a, 0x26, 0xd4, 0x37,
- 0x28, 0x90, 0x58, 0x75, 0x66, 0x2b, 0x0a, 0xdf,
- 0xda, 0xee, 0x92, 0x25, 0x90, 0x62, 0x39, 0x9e,
- 0x44, 0x98, 0xad, 0xc1, 0x88, 0xed, 0xe4, 0xb4,
- 0xaf, 0xf5, 0x8c, 0x9b, 0x48, 0x4d, 0x56, 0x60,
- 0x97, 0x0f, 0x61, 0x59, 0x9e, 0xa6, 0x27, 0xfe,
- 0xc1, 0x91, 0x15, 0x38, 0xb8, 0x0f, 0xae, 0x61,
- 0x7d, 0x26, 0x13, 0x5a, 0x73, 0xff, 0x1c, 0xa3,
- 0x61, 0x04, 0x58, 0x48, 0x55, 0x44, 0x11, 0xfe,
- 0x15, 0xca, 0xc3, 0xbd, 0xca, 0xc5, 0xb4, 0x40,
- 0x5d, 0x1b, 0x7f, 0x39, 0xb5, 0x9c, 0x35, 0xec,
- 0x61, 0x15, 0x32, 0x32, 0xb8, 0x4e, 0x40, 0x9f,
- 0x17, 0x1f, 0x0a, 0x4d, 0xa9, 0x91, 0xef, 0xb7,
- 0xb0, 0xeb, 0xc2, 0x83, 0x9a, 0x6c, 0xd2, 0x79,
- 0x43, 0x78, 0x5e, 0x2f, 0xe5, 0xdd, 0x1a, 0x3c,
- 0x45, 0xab, 0x29, 0x40, 0x3a, 0x37, 0x5b, 0x6f,
- 0xd7, 0xfc, 0x48, 0x64, 0x3c, 0x49, 0xfb, 0x21,
- 0xbe, 0xc3, 0xff, 0x07, 0xfb, 0x17, 0xe9, 0xc9,
- 0x0c, 0x4c, 0x5c, 0x15, 0x9e, 0x8e, 0x22, 0x30,
- 0x0a, 0xde, 0x48, 0x7f, 0xdb, 0x0d, 0xd1, 0x2b,
- 0x87, 0x38, 0x9e, 0xcc, 0x5a, 0x01, 0x16, 0xee,
- 0x75, 0x49, 0x0d, 0x30, 0x01, 0x34, 0x6a, 0xb6,
- 0x9a, 0x5a, 0x2a, 0xec, 0xbb, 0x48, 0xac, 0xd3,
- 0x77, 0x83, 0xd8, 0x08, 0x86, 0x4f, 0x48, 0x09,
- 0x29, 0x41, 0x79, 0xa1, 0x03, 0x12, 0xc4, 0xcd,
- 0x90, 0x55, 0x47, 0x66, 0x74, 0x9a, 0xcc, 0x4f,
- 0x35, 0x8c, 0xd6, 0x98, 0xef, 0xeb, 0x45, 0xb9,
- 0x9a, 0x26, 0x2f, 0x39, 0xa5, 0x70, 0x6d, 0xfc,
- 0xb4, 0x51, 0xee, 0xf4, 0x9c, 0xe7, 0x38, 0x59,
- 0xad, 0xf4, 0xbc, 0x46, 0xff, 0x46, 0x8e, 0x60,
- 0x9c, 0xa3, 0x60, 0x1d, 0xf8, 0x26, 0x72, 0xf5,
- 0x72, 0x9d, 0x68, 0x80, 0x04, 0xf6, 0x0b, 0xa1,
- 0x0a, 0xd5, 0xa7, 0x82, 0x3a, 0x3e, 0x47, 0xa8,
- 0x5a, 0xde, 0x59, 0x4f, 0x7b, 0x07, 0xb3, 0xe9,
- 0x24, 0x19, 0x3d, 0x34, 0x05, 0xec, 0xf1, 0xab,
- 0x6e, 0x64, 0x8f, 0xd3, 0xe6, 0x41, 0x86, 0x80,
- 0x70, 0xe3, 0x8d, 0x60, 0x9c, 0x34, 0x25, 0x01,
- 0x07, 0x4d, 0x19, 0x41, 0x4e, 0x3d, 0x5c, 0x7e,
- 0xa8, 0xf5, 0xcc, 0xd5, 0x7b, 0xe2, 0x7d, 0x3d,
- 0x49, 0x86, 0x7d, 0x07, 0xb7, 0x10, 0xe3, 0x35,
- 0xb8, 0x84, 0x6d, 0x76, 0xab, 0x17, 0xc6, 0x38,
- 0xb4, 0xd3, 0x28, 0x57, 0xad, 0xd3, 0x88, 0x5a,
- 0xda, 0xea, 0xc8, 0x94, 0xcc, 0x37, 0x19, 0xac,
- 0x9c, 0x9f, 0x4b, 0x00, 0x15, 0xc0, 0xc8, 0xca,
- 0x1f, 0x15, 0xaa, 0xe0, 0xdb, 0xf9, 0x2f, 0x57,
- 0x1b, 0x24, 0xc7, 0x6f, 0x76, 0x29, 0xfb, 0xed,
- 0x25, 0x0d, 0xc0, 0xfe, 0xbd, 0x5a, 0xbf, 0x20,
- 0x08, 0x51, 0x05, 0xec, 0x71, 0xa3, 0xbf, 0xef,
- 0x5e, 0x99, 0x75, 0xdb, 0x3c, 0x5f, 0x9a, 0x8c,
- 0xbb, 0x19, 0x5c, 0x0e, 0x93, 0x19, 0xf8, 0x6a,
- 0xbc, 0xf2, 0x12, 0x54, 0x2f, 0xcb, 0x28, 0x64,
- 0x88, 0xb3, 0x92, 0x0d, 0x96, 0xd1, 0xa6, 0xe4,
- 0x1f, 0xf1, 0x4d, 0xa4, 0xab, 0x1c, 0xee, 0x54,
- 0xf2, 0xad, 0x29, 0x6d, 0x32, 0x37, 0xb2, 0x16,
- 0x77, 0x5c, 0xdc, 0x2e, 0x54, 0xec, 0x75, 0x26,
- 0xc6, 0x36, 0xd9, 0x17, 0x2c, 0xf1, 0x7a, 0xdc,
- 0x4b, 0xf1, 0xe2, 0xd9, 0x95, 0xba, 0xac, 0x87,
- 0xc1, 0xf3, 0x8e, 0x58, 0x08, 0xd8, 0x87, 0x60,
- 0xc9, 0xee, 0x6a, 0xde, 0xa4, 0xd2, 0xfc, 0x0d,
- 0xe5, 0x36, 0xc4, 0x5c, 0x52, 0xb3, 0x07, 0x54,
- 0x65, 0x24, 0xc1, 0xb1, 0xd1, 0xb1, 0x53, 0x13,
- 0x31, 0x79, 0x7f, 0x05, 0x76, 0xeb, 0x37, 0x59,
- 0x15, 0x2b, 0xd1, 0x3f, 0xac, 0x08, 0x97, 0xeb,
- 0x91, 0x98, 0xdf, 0x6c, 0x09, 0x0d, 0x04, 0x9f,
- 0xdc, 0x3b, 0x0e, 0x60, 0x68, 0x47, 0x23, 0x15,
- 0x16, 0xc6, 0x0b, 0x35, 0xf8, 0x77, 0xa2, 0x78,
- 0x50, 0xd4, 0x64, 0x22, 0x33, 0xff, 0xfb, 0x93,
- 0x71, 0x46, 0x50, 0x39, 0x1b, 0x9c, 0xea, 0x4e,
- 0x8d, 0x0c, 0x37, 0xe5, 0x5c, 0x51, 0x3a, 0x31,
- 0xb2, 0x85, 0x84, 0x3f, 0x41, 0xee, 0xa2, 0xc1,
- 0xc6, 0x13, 0x3b, 0x54, 0x28, 0xd2, 0x18, 0x37,
- 0xcc, 0x46, 0x9f, 0x6a, 0x91, 0x3d, 0x5a, 0x15,
- 0x3c, 0x89, 0xa3, 0x61, 0x06, 0x7d, 0x2e, 0x78,
- 0xbe, 0x7d, 0x40, 0xba, 0x2f, 0x95, 0xb1, 0x2f,
- 0x87, 0x3b, 0x8a, 0xbe, 0x6a, 0xf4, 0xc2, 0x31,
- 0x74, 0xee, 0x91, 0xe0, 0x23, 0xaa, 0x5d, 0x7f,
- 0xdd, 0xf0, 0x44, 0x8c, 0x0b, 0x59, 0x2b, 0xfc,
- 0x48, 0x3a, 0xdf, 0x07, 0x05, 0x38, 0x6c, 0xc9,
- 0xeb, 0x18, 0x24, 0x68, 0x8d, 0x58, 0x98, 0xd3,
- 0x31, 0xa3, 0xe4, 0x70, 0x59, 0xb1, 0x21, 0xbe,
- 0x7e, 0x65, 0x7d, 0xb8, 0x04, 0xab, 0xf6, 0xe4,
- 0xd7, 0xda, 0xec, 0x09, 0x8f, 0xda, 0x6d, 0x24,
- 0x07, 0xcc, 0x29, 0x17, 0x05, 0x78, 0x1a, 0xc1,
- 0xb1, 0xce, 0xfc, 0xaa, 0x2d, 0xe7, 0xcc, 0x85,
- 0x84, 0x84, 0x03, 0x2a, 0x0c, 0x3f, 0xa9, 0xf8,
- 0xfd, 0x84, 0x53, 0x59, 0x5c, 0xf0, 0xd4, 0x09,
- 0xf0, 0xd2, 0x6c, 0x32, 0x03, 0xb0, 0xa0, 0x8c,
- 0x52, 0xeb, 0x23, 0x91, 0x88, 0x43, 0x13, 0x46,
- 0xf6, 0x1e, 0xb4, 0x1b, 0xf5, 0x8e, 0x3a, 0xb5,
- 0x3d, 0x00, 0xf6, 0xe5, 0x08, 0x3d, 0x5f, 0x39,
- 0xd3, 0x21, 0x69, 0xbc, 0x03, 0x22, 0x3a, 0xd2,
- 0x5c, 0x84, 0xf8, 0x15, 0xc4, 0x80, 0x0b, 0xbc,
- 0x29, 0x3c, 0xf3, 0x95, 0x98, 0xcd, 0x8f, 0x35,
- 0xbc, 0xa5, 0x3e, 0xfc, 0xd4, 0x13, 0x9e, 0xde,
- 0x4f, 0xce, 0x71, 0x9d, 0x09, 0xad, 0xf2, 0x80,
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- 0xf3, 0xb0, 0x79, 0x96, 0xa2, 0x55, 0x27, 0x28,
- 0x55, 0x73, 0x26, 0xa5, 0x50, 0xea, 0x92, 0x4b,
- 0x3c, 0x5c, 0x82, 0x33, 0xf0, 0x01, 0x3f, 0x03,
- 0xc1, 0x08, 0x05, 0xbf, 0x98, 0xf4, 0x9b, 0x6d,
- 0xa5, 0xa8, 0xb4, 0x82, 0x0c, 0x06, 0xfa, 0xff,
- 0x2d, 0x08, 0xf3, 0x05, 0x4f, 0x57, 0x2a, 0x39,
- 0xd4, 0x83, 0x0d, 0x75, 0x51, 0xd8, 0x5b, 0x1b,
- 0xd3, 0x51, 0x5a, 0x32, 0x2a, 0x9b, 0x32, 0xb2,
- 0xf2, 0xa4, 0x96, 0x12, 0xf2, 0xae, 0x40, 0x34,
- 0x67, 0xa8, 0xf5, 0x44, 0xd5, 0x35, 0x53, 0xfe,
- 0xa3, 0x60, 0x96, 0x63, 0x0f, 0x1f, 0x6e, 0xb0,
- 0x5a, 0x42, 0xa6, 0xfc, 0x51, 0x0b, 0x60, 0x27,
- 0xbc, 0x06, 0x71, 0xed, 0x65, 0x5b, 0x23, 0x86,
- 0x4a, 0x07, 0x3b, 0x22, 0x07, 0x46, 0xe6, 0x90,
- 0x3e, 0xf3, 0x25, 0x50, 0x1b, 0x4c, 0x7f, 0x03,
- 0x08, 0xa8, 0x36, 0x6b, 0x87, 0xe5, 0xe3, 0xdb,
- 0x9a, 0x38, 0x83, 0xff, 0x9f, 0x1a, 0x9f, 0x57,
- 0xa4, 0x2a, 0xf6, 0x37, 0xbc, 0x1a, 0xff, 0xc9,
- 0x1e, 0x35, 0x0c, 0xc3, 0x7c, 0xa3, 0xb2, 0xe5,
- 0xd2, 0xc6, 0xb4, 0x57, 0x47, 0xe4, 0x32, 0x16,
- 0x6d, 0xa9, 0xae, 0x64, 0xe6, 0x2d, 0x8d, 0xc5,
- 0x8d, 0x50, 0x8e, 0xe8, 0x1a, 0x22, 0x34, 0x2a,
- 0xd9, 0xeb, 0x51, 0x90, 0x4a, 0xb1, 0x41, 0x7d,
- 0x64, 0xf9, 0xb9, 0x0d, 0xf6, 0x23, 0x33, 0xb0,
- 0x33, 0xf4, 0xf7, 0x3f, 0x27, 0x84, 0xc6, 0x0f,
- 0x54, 0xa5, 0xc0, 0x2e, 0xec, 0x0b, 0x3a, 0x48,
- 0x6e, 0x80, 0x35, 0x81, 0x43, 0x9b, 0x90, 0xb1,
- 0xd0, 0x2b, 0xea, 0x21, 0xdc, 0xda, 0x5b, 0x09,
- 0xf4, 0xcc, 0x10, 0xb4, 0xc7, 0xfe, 0x79, 0x51,
- 0xc3, 0xc5, 0xac, 0x88, 0x74, 0x84, 0x0b, 0x4b,
- 0xca, 0x79, 0x16, 0x29, 0xfb, 0x69, 0x54, 0xdf,
- 0x41, 0x7e, 0xe9, 0xc7, 0x8e, 0xea, 0xa5, 0xfe,
- 0xfc, 0x76, 0x0e, 0x90, 0xc4, 0x92, 0x38, 0xad,
- 0x7b, 0x48, 0xe6, 0x6e, 0xf7, 0x21, 0xfd, 0x4e,
- 0x93, 0x0a, 0x7b, 0x41, 0x83, 0x68, 0xfb, 0x57,
- 0x51, 0x76, 0x34, 0xa9, 0x6c, 0x00, 0xaa, 0x4f,
- 0x66, 0x65, 0x98, 0x4a, 0x4f, 0xa3, 0xa0, 0xef,
- 0x69, 0x3f, 0xe3, 0x1c, 0x92, 0x8c, 0xfd, 0xd8,
- 0xe8, 0xde, 0x7c, 0x7f, 0x3e, 0x84, 0x8e, 0x69,
- 0x3c, 0xf1, 0xf2, 0x05, 0x46, 0xdc, 0x2f, 0x9d,
- 0x5e, 0x6e, 0x4c, 0xfb, 0xb5, 0x99, 0x2a, 0x59,
- 0x63, 0xc1, 0x34, 0xbc, 0x57, 0xc0, 0x0d, 0xb9,
- 0x61, 0x25, 0xf3, 0x33, 0x23, 0x51, 0xb6, 0x0d,
- 0x07, 0xa6, 0xab, 0x94, 0x4a, 0xb7, 0x2a, 0xea,
- 0xee, 0xac, 0xa3, 0xc3, 0x04, 0x8b, 0x0e, 0x56,
- 0xfe, 0x44, 0xa7, 0x39, 0xe2, 0xed, 0xed, 0xb4,
- 0x22, 0x2b, 0xac, 0x12, 0x32, 0x28, 0x91, 0xd8,
- 0xa5, 0xab, 0xff, 0x5f, 0xe0, 0x4b, 0xda, 0x78,
- 0x17, 0xda, 0xf1, 0x01, 0x5b, 0xcd, 0xe2, 0x5f,
- 0x50, 0x45, 0x73, 0x2b, 0xe4, 0x76, 0x77, 0xf4,
- 0x64, 0x1d, 0x43, 0xfb, 0x84, 0x7a, 0xea, 0x91,
- 0xae, 0xf9, 0x9e, 0xb7, 0xb4, 0xb0, 0x91, 0x5f,
- 0x16, 0x35, 0x9a, 0x11, 0xb8, 0xc7, 0xc1, 0x8c,
- 0xc6, 0x10, 0x8d, 0x2f, 0x63, 0x4a, 0xa7, 0x57,
- 0x3a, 0x51, 0xd6, 0x32, 0x2d, 0x64, 0x72, 0xd4,
- 0x66, 0xdc, 0x10, 0xa6, 0x67, 0xd6, 0x04, 0x23,
- 0x9d, 0x0a, 0x11, 0x77, 0xdd, 0x37, 0x94, 0x17,
- 0x3c, 0xbf, 0x8b, 0x65, 0xb0, 0x2e, 0x5e, 0x66,
- 0x47, 0x64, 0xac, 0xdd, 0xf0, 0x84, 0xfd, 0x39,
- 0xfa, 0x15, 0x5d, 0xef, 0xae, 0xca, 0xc1, 0x36,
- 0xa7, 0x5c, 0xbf, 0xc7, 0x08, 0xc2, 0x66, 0x00,
- 0x74, 0x74, 0x4e, 0x27, 0x3f, 0x55, 0x8a, 0xb7,
- 0x38, 0x66, 0x83, 0x6d, 0xcf, 0x99, 0x9e, 0x60,
- 0x8f, 0xdd, 0x2e, 0x62, 0x22, 0x0e, 0xef, 0x0c,
- 0x98, 0xa7, 0x85, 0x74, 0x3b, 0x9d, 0xec, 0x9e,
- 0xa9, 0x19, 0x72, 0xa5, 0x7f, 0x2c, 0x39, 0xb7,
- 0x7d, 0xb7, 0xf1, 0x12, 0x65, 0x27, 0x4b, 0x5a,
- 0xde, 0x17, 0xfe, 0xad, 0x44, 0xf3, 0x20, 0x4d,
- 0xfd, 0xe4, 0x1f, 0xb5, 0x81, 0xb0, 0x36, 0x37,
- 0x08, 0x6f, 0xc3, 0x0c, 0xe9, 0x85, 0x98, 0x82,
- 0xa9, 0x62, 0x0c, 0xc4, 0x97, 0xc0, 0x50, 0xc8,
- 0xa7, 0x3c, 0x50, 0x9f, 0x43, 0xb9, 0xcd, 0x5e,
- 0x4d, 0xfa, 0x1c, 0x4b, 0x0b, 0xa9, 0x98, 0x85,
- 0x38, 0x92, 0xac, 0x8d, 0xe4, 0xad, 0x9b, 0x98,
- 0xab, 0xd9, 0x38, 0xac, 0x62, 0x52, 0xa3, 0x22,
- 0x63, 0x0f, 0xbf, 0x95, 0x48, 0xdf, 0x69, 0xe7,
- 0x8b, 0x33, 0xd5, 0xb2, 0xbd, 0x05, 0x49, 0x49,
- 0x9d, 0x57, 0x73, 0x19, 0x33, 0xae, 0xfa, 0x33,
- 0xf1, 0x19, 0xa8, 0x80, 0xce, 0x04, 0x9f, 0xbc,
- 0x1d, 0x65, 0x82, 0x1b, 0xe5, 0x3a, 0x51, 0xc8,
- 0x1c, 0x21, 0xe3, 0x5d, 0xf3, 0x7d, 0x9b, 0x2f,
- 0x2c, 0x1d, 0x4a, 0x7f, 0x9b, 0x68, 0x35, 0xa3,
- 0xb2, 0x50, 0xf7, 0x62, 0x79, 0xcd, 0xf4, 0x98,
- 0x4f, 0xe5, 0x63, 0x7c, 0x3e, 0x45, 0x31, 0x8c,
- 0x16, 0xa0, 0x12, 0xc8, 0x58, 0xce, 0x39, 0xa6,
- 0xbc, 0x54, 0xdb, 0xc5, 0xe0, 0xd5, 0xba, 0xbc,
- 0xb9, 0x04, 0xf4, 0x8d, 0xe8, 0x2f, 0x15, 0x9d,
-};
-
-/* 100 test cases */
-static struct crc_test {
- u32 crc; /* random starting crc */
- u32 start; /* random 6 bit offset in buf */
- u32 length; /* random 11 bit length of test */
- u32 crc32c_le; /* expected crc32c_le result */
-} test[] =
-{
- {0x674bf11d, 0x00000038, 0x00000542, 0xf6e93d6c},
- {0x35c672c6, 0x0000003a, 0x000001aa, 0x0fe92aca},
- {0x496da28e, 0x00000039, 0x000005af, 0x52e1ebb8},
- {0x09a9b90e, 0x00000027, 0x000001f8, 0x0798af9a},
- {0xdc97e5a9, 0x00000025, 0x000003b6, 0x18eb3152},
- {0x47c58900, 0x0000000a, 0x000000b9, 0xd00d08c7},
- {0x292561e8, 0x0000000c, 0x00000403, 0x8ba966bc},
- {0x415037f6, 0x00000003, 0x00000676, 0x11d694a2},
- {0x3466e707, 0x00000026, 0x00000042, 0x6ab3208d},
- {0xafd1281b, 0x00000023, 0x000002ee, 0xba4603c5},
- {0xd3857b18, 0x00000028, 0x000004a2, 0xe6071c6f},
- {0x1d825a8f, 0x0000002b, 0x0000050b, 0x179ec30a},
- {0x5033e3bc, 0x0000000b, 0x00000078, 0x0903beb8},
- {0x94f1fb5e, 0x0000000f, 0x000003a2, 0x6a7cb4fa},
- {0xc9a0fe14, 0x00000009, 0x00000473, 0xdb535801},
- {0x88a034b1, 0x0000001c, 0x000005ad, 0x92bed597},
- {0xf0f72239, 0x00000020, 0x0000026d, 0x192a3f1b},
- {0xcc20a5e3, 0x0000003b, 0x0000067a, 0xccbaec1a},
- {0xce589c95, 0x0000002b, 0x00000641, 0x7eabae4d},
- {0x78edc885, 0x00000035, 0x000005be, 0x28c72982},
- {0x9d40a377, 0x0000003b, 0x00000038, 0xc3cd4d18},
- {0x703d0e01, 0x0000003c, 0x000006f1, 0xbca8f0e7},
- {0x776bf505, 0x0000000f, 0x000005b2, 0x713f60b3},
- {0x4a3e7854, 0x00000027, 0x000004b8, 0xebd08fd5},
- {0x209172dd, 0x0000003b, 0x00000356, 0x64406c59},
- {0x3ba4cc5b, 0x0000002f, 0x00000203, 0x7421890e},
- {0xfc62f297, 0x00000000, 0x00000079, 0xe9347603},
- {0x64280b8b, 0x00000016, 0x000007ab, 0x1bef9060},
- {0x97dd724b, 0x00000033, 0x000007ad, 0x34720072},
- {0x61394b52, 0x00000035, 0x00000571, 0x48310f59},
- {0x29b4faff, 0x00000024, 0x0000006e, 0x783a4213},
- {0x29bfb1dc, 0x0000000b, 0x00000244, 0x9e8efd41},
- {0x86ae934b, 0x00000035, 0x00000104, 0xfc3d34a5},
- {0xc4c1024e, 0x0000002e, 0x000006b1, 0x17a52ae2},
- {0x3287a80a, 0x00000026, 0x00000496, 0x886d935a},
- {0xa4db423e, 0x00000023, 0x0000045d, 0xeaaeaeb2},
- {0x7a1078df, 0x00000015, 0x0000014a, 0x8e900a4b},
- {0x6048bd5b, 0x00000006, 0x0000006a, 0xd74662b1},
- {0xd8f9ea20, 0x0000003d, 0x00000277, 0xd26752ba},
- {0xea5ec3b4, 0x0000002a, 0x000004fe, 0x8b1fcd62},
- {0x2dfb005d, 0x00000016, 0x00000345, 0xf54342fe},
- {0x5a214ade, 0x00000020, 0x000005b6, 0x5b95b988},
- {0xf0ab9cca, 0x00000032, 0x00000515, 0x2e1176be},
- {0x91b444f9, 0x0000002e, 0x000007f8, 0x66120546},
- {0x1b5d2ddb, 0x0000002e, 0x0000012c, 0xf256a5cc},
- {0xd824d1bb, 0x0000003a, 0x000007b5, 0x4af1dd69},
- {0x0470180c, 0x00000034, 0x000001f0, 0x56f0a04a},
- {0xffaa3a3f, 0x00000036, 0x00000299, 0x74f6b6b2},
- {0x6406cfeb, 0x00000023, 0x00000600, 0x085951fd},
- {0xb24aaa38, 0x0000003e, 0x000004a1, 0xc65387eb},
- {0x58b2ab7c, 0x00000039, 0x000002b4, 0x1ca9257b},
- {0x3db85970, 0x00000006, 0x000002b6, 0xfd196d76},
- {0x857830c5, 0x00000003, 0x00000590, 0x5ef88339},
- {0xe1fcd978, 0x0000003e, 0x000007d8, 0x2c3714d9},
- {0xb982a768, 0x00000016, 0x000006e0, 0x58576548},
- {0x1d581ce8, 0x0000001e, 0x0000058b, 0xfd7c57de},
- {0x2456719b, 0x00000025, 0x00000503, 0xd5fedd59},
- {0xfae6d8f2, 0x00000000, 0x0000055d, 0x1cc3b17b},
- {0xcba828e3, 0x00000039, 0x000002ce, 0x270eed73},
- {0x13d25952, 0x0000000a, 0x0000072d, 0x91ecbb11},
- {0x0342be3f, 0x00000015, 0x00000599, 0x05ed8d0c},
- {0xeaa344e0, 0x00000014, 0x000004d8, 0x0b09ad5b},
- {0xbbb52021, 0x0000003b, 0x00000272, 0xf8d511fb},
- {0xb66384dc, 0x0000001d, 0x000007fc, 0x5ad832cc},
- {0x616c01b6, 0x00000022, 0x000002c8, 0x1214d196},
- {0xce2bdaad, 0x00000016, 0x0000062a, 0x5747218a},
- {0x00fe84d7, 0x00000005, 0x00000205, 0xde8f14de},
- {0xbebdcb4c, 0x00000006, 0x0000055d, 0x3563b7b9},
- {0xd8b1a02a, 0x00000010, 0x00000387, 0x071475d0},
- {0x3b96cad2, 0x00000036, 0x00000347, 0x54c79d60},
- {0xc94c1ed7, 0x00000005, 0x0000038b, 0x4c53eee6},
- {0x1aad454e, 0x00000025, 0x000002b2, 0x10137a3c},
- {0xa4fec9a6, 0x00000000, 0x000006d6, 0xaa9d6c73},
- {0x1bbe71e2, 0x0000001f, 0x000002fd, 0xb63d23e7},
- {0x4201c7e4, 0x00000002, 0x000002b7, 0x7f53e9cf},
- {0x23fddc96, 0x00000003, 0x00000627, 0x13c1cd83},
- {0xd82ba25c, 0x00000016, 0x0000063e, 0x49ff5867},
- {0x786f2032, 0x0000002d, 0x0000060f, 0x8467f211},
- {0xfebe4e1f, 0x0000002a, 0x000004f2, 0x3f9683b2},
- {0x1a6e0a39, 0x00000008, 0x00000672, 0x76a3f874},
- {0x56000ab8, 0x0000000e, 0x000000e5, 0x863b702f},
- {0x4717fe0c, 0x00000000, 0x000006ec, 0xdc6c58ff},
- {0xd5d5d68e, 0x0000003c, 0x000003a3, 0x0622cc95},
- {0xc25dd6c6, 0x00000024, 0x000006c0, 0xe85605cd},
- {0xe9b11300, 0x00000023, 0x00000683, 0x31da5f06},
- {0x95cd285e, 0x00000001, 0x00000047, 0xa1f2e784},
- {0xd9245a25, 0x0000001e, 0x000003a6, 0xb07cc616},
- {0x103279db, 0x00000006, 0x0000039b, 0xbf943b6c},
- {0x1cba3172, 0x00000027, 0x000001c8, 0x2c01af1c},
- {0x8f613739, 0x0000000c, 0x000001df, 0x0fe5f56d},
- {0x1c6aa90d, 0x0000001b, 0x0000053c, 0xf8943b2d},
- {0xaabe5b93, 0x0000003d, 0x00000715, 0xe4d89272},
- {0xf15dd038, 0x00000006, 0x000006db, 0x7c2f6bbb},
- {0x584dd49c, 0x00000020, 0x000007bc, 0xabbf388b},
- {0x5d8c9506, 0x00000020, 0x00000470, 0x1dca1f4e},
- {0xb80d17b0, 0x00000032, 0x00000346, 0x5c170e23},
- {0xdaf0592e, 0x00000023, 0x000007b0, 0xc0e9d672},
- {0x4793cc85, 0x0000000d, 0x00000706, 0xc18bdc86},
- {0x82ebf64e, 0x00000009, 0x000007c3, 0xa874fcdd},
- {0xb18a0319, 0x00000026, 0x000007db, 0x9dc0bb48},
-};
-
-static int crc32c_test(void)
-{
- int i;
- int errors = 0;
- int bytes = 0;
- struct timeval start, stop;
- uint64_t usec;
-
- /* keep static to prevent cache warming code from
- * getting eliminated by the compiler */
- static u32 crc;
-
- /* pre-warm the cache */
- for (i = 0; i < 100; i++) {
- bytes += 2*test[i].length;
-
- crc ^= crc32c_le(test[i].crc, test_buf +
- test[i].start, test[i].length);
- }
-
- gettimeofday(&start, NULL);
- for (i = 0; i < 100; i++) {
- if (test[i].crc32c_le != crc32c_le(test[i].crc, test_buf +
- test[i].start, test[i].length))
- errors++;
- }
- gettimeofday(&stop, NULL);
-
- usec = stop.tv_usec - start.tv_usec +
- 1000000 * (stop.tv_sec - start.tv_sec);
-
- if (errors)
- printf("crc32c: %d self tests failed\n", errors);
- else {
- printf("crc32c: tests passed, %d bytes in %" PRIu64 " usec\n",
- bytes, usec);
- }
-
- return errors;
-}
+# include "crc32selftest.h"
/*
* make sure we always return 0 for a successful test run, and non-zero for a
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH] xfs_io: add crc32 self test
2018-10-29 18:11 [PATCH] xfs_io: add crc32 self test Darrick J. Wong
@ 2018-10-29 18:30 ` Eric Sandeen
2018-10-29 19:09 ` Darrick J. Wong
2018-10-29 19:10 ` [PATCH v2] " Darrick J. Wong
1 sibling, 1 reply; 4+ messages in thread
From: Eric Sandeen @ 2018-10-29 18:30 UTC (permalink / raw)
To: Darrick J. Wong, Eric Sandeen; +Cc: xfs
On 10/29/18 1:11 PM, Darrick J. Wong wrote:
> From: Darrick J. Wong <darrick.wong@oracle.com>
>
> Add a self test for crc32 into xfs_io so that xfstests can check the
> operation of the (potentially cross-compiled) package binaries by
> isolating the self test code to a header file that can be included by
> the build system self test and xfs_io.
>
> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
> ---
> include/crc32selftest.h | 706 +++++++++++++++++++++++++++++++++++++++++++++++
> io/Makefile | 8 -
> io/crc32selftest.c | 51 +++
> io/init.c | 1
> io/io.h | 1
> libfrog/crc32.c | 669 ---------------------------------------------
needs a manpage change as well I think.
> 6 files changed, 764 insertions(+), 672 deletions(-)
> create mode 100644 include/crc32selftest.h
> create mode 100644 io/crc32selftest.c
>
...
> diff --git a/io/crc32selftest.c b/io/crc32selftest.c
> new file mode 100644
> index 00000000..c0b4b2f4
> --- /dev/null
> +++ b/io/crc32selftest.c
> @@ -0,0 +1,51 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Copyright (c) 2018 Oracle, Inc.
> + * All Rights Reserved.
> + */
> +
> +#include "platform_defs.h"
> +#include "command.h"
> +#include "init.h"
> +#include "io.h"
> +#include "crc32c.h"
> +#include "crc32selftest.h"
> +
> +static int
> +crc32selftest_f(
> + int argc,
> + char **argv)
> +{
> + int c;
> + int errors;
> +
> + while ((c = getopt(argc, argv, "")) != EOF) {
> + switch (c) {
> + default:
> + fprintf(stderr,
> +_("Bad option for crc32selftest command.\n"));
> + return 0;
> + }
> + }
I think we can drop the getopt bits altogether because:
> + errors = crc32c_test();
> + return errors == 0 ? 0 : 1;
> +}
> +
> +static const cmdinfo_t crc32selftest_cmd = {
> + .name = "crc32selftest",
> + .cfunc = crc32selftest_f,
> + .argmin = 0,
> + .argmax = 0,
This command structure doesn't even let us get there:
# io/xfs_io -c "crc32selftest foo"
bad argument count 1 to crc32selftest, expected 0 arguments
# io/xfs_io -c "crc32selftest -f"
bad argument count 1 to crc32selftest, expected 0 arguments
and other "argmax" functions (freeze, thaw, close, munmap...) don't bother
with getopt at all.
> + .canpush = 0,
> + .args = "",
drop this I think, otherwise we get a weird space in usage:
crc32selftest -- crc32c self test
vs
crc32selftest -- crc32c self test
because
if (ct->args)
printf("%s ", ct->args);
printf("-- %s\n", ct->oneline);
> + .flags = CMD_FLAG_ONESHOT | CMD_FLAG_FOREIGN_OK |
> + CMD_NOFILE_OK | CMD_NOMAP_OK,
> + .oneline = N_("crc32c self test"),
> +};
> +
> +void
> +crc32selftest_init(void)
> +{
> + add_command(&crc32selftest_cmd);
> +}
ok is it better to call this crc32c selftest or crc32 selftest? Seems a little inconsistent in the naming.
> diff --git a/io/init.c b/io/init.c
> index b5eade39..53b754e4 100644
> --- a/io/init.c
> +++ b/io/init.c
> @@ -85,6 +85,7 @@ init_commands(void)
> sync_range_init();
> truncate_init();
> utimes_init();
> + crc32selftest_init();
> }
>
> /*
> diff --git a/io/io.h b/io/io.h
> index 9278ad00..847b4759 100644
> --- a/io/io.h
> +++ b/io/io.h
> @@ -182,3 +182,4 @@ extern void log_writes_init(void);
>
> extern void scrub_init(void);
> extern void repair_init(void);
> +extern void crc32selftest_init(void);
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] xfs_io: add crc32 self test
2018-10-29 18:30 ` Eric Sandeen
@ 2018-10-29 19:09 ` Darrick J. Wong
0 siblings, 0 replies; 4+ messages in thread
From: Darrick J. Wong @ 2018-10-29 19:09 UTC (permalink / raw)
To: Eric Sandeen; +Cc: Eric Sandeen, xfs
On Mon, Oct 29, 2018 at 01:30:32PM -0500, Eric Sandeen wrote:
> On 10/29/18 1:11 PM, Darrick J. Wong wrote:
> > From: Darrick J. Wong <darrick.wong@oracle.com>
> >
> > Add a self test for crc32 into xfs_io so that xfstests can check the
> > operation of the (potentially cross-compiled) package binaries by
> > isolating the self test code to a header file that can be included by
> > the build system self test and xfs_io.
> >
> > Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
> > ---
> > include/crc32selftest.h | 706 +++++++++++++++++++++++++++++++++++++++++++++++
> > io/Makefile | 8 -
> > io/crc32selftest.c | 51 +++
> > io/init.c | 1
> > io/io.h | 1
> > libfrog/crc32.c | 669 ---------------------------------------------
>
> needs a manpage change as well I think.
Dangit, I forgot to port that over when I moved the command.
> > 6 files changed, 764 insertions(+), 672 deletions(-)
> > create mode 100644 include/crc32selftest.h
> > create mode 100644 io/crc32selftest.c
> >
>
> ...
>
> > diff --git a/io/crc32selftest.c b/io/crc32selftest.c
> > new file mode 100644
> > index 00000000..c0b4b2f4
> > --- /dev/null
> > +++ b/io/crc32selftest.c
> > @@ -0,0 +1,51 @@
> > +// SPDX-License-Identifier: GPL-2.0
> > +/*
> > + * Copyright (c) 2018 Oracle, Inc.
> > + * All Rights Reserved.
> > + */
> > +
> > +#include "platform_defs.h"
> > +#include "command.h"
> > +#include "init.h"
> > +#include "io.h"
> > +#include "crc32c.h"
> > +#include "crc32selftest.h"
> > +
> > +static int
> > +crc32selftest_f(
> > + int argc,
> > + char **argv)
> > +{
> > + int c;
> > + int errors;
> > +
> > + while ((c = getopt(argc, argv, "")) != EOF) {
> > + switch (c) {
> > + default:
> > + fprintf(stderr,
> > +_("Bad option for crc32selftest command.\n"));
> > + return 0;
> > + }
> > + }
>
> I think we can drop the getopt bits altogether because:
>
> > + errors = crc32c_test();
> > + return errors == 0 ? 0 : 1;
> > +}
> > +
> > +static const cmdinfo_t crc32selftest_cmd = {
> > + .name = "crc32selftest",
> > + .cfunc = crc32selftest_f,
> > + .argmin = 0,
> > + .argmax = 0,
>
> This command structure doesn't even let us get there:
>
> # io/xfs_io -c "crc32selftest foo"
> bad argument count 1 to crc32selftest, expected 0 arguments
> # io/xfs_io -c "crc32selftest -f"
> bad argument count 1 to crc32selftest, expected 0 arguments
>
> and other "argmax" functions (freeze, thaw, close, munmap...) don't bother
> with getopt at all.
ok.
> > + .canpush = 0,
> > + .args = "",
>
> drop this I think, otherwise we get a weird space in usage:
>
> crc32selftest -- crc32c self test
>
> vs
>
> crc32selftest -- crc32c self test
>
> because
>
> if (ct->args)
> printf("%s ", ct->args);
> printf("-- %s\n", ct->oneline);
>
Aha, that's why it does that...
> > + .flags = CMD_FLAG_ONESHOT | CMD_FLAG_FOREIGN_OK |
> > + CMD_NOFILE_OK | CMD_NOMAP_OK,
> > + .oneline = N_("crc32c self test"),
>
> > +};
> > +
> > +void
> > +crc32selftest_init(void)
> > +{
> > + add_command(&crc32selftest_cmd);
> > +}
>
> ok is it better to call this crc32c selftest or crc32 selftest? Seems a little inconsistent in the naming.
crc32cselftest it is then.
--D
> > diff --git a/io/init.c b/io/init.c
> > index b5eade39..53b754e4 100644
> > --- a/io/init.c
> > +++ b/io/init.c
> > @@ -85,6 +85,7 @@ init_commands(void)
> > sync_range_init();
> > truncate_init();
> > utimes_init();
> > + crc32selftest_init();
> > }
> >
> > /*
> > diff --git a/io/io.h b/io/io.h
> > index 9278ad00..847b4759 100644
> > --- a/io/io.h
> > +++ b/io/io.h
> > @@ -182,3 +182,4 @@ extern void log_writes_init(void);
> >
> > extern void scrub_init(void);
> > extern void repair_init(void);
> > +extern void crc32selftest_init(void);
>
>
^ permalink raw reply [flat|nested] 4+ messages in thread
* [PATCH v2] xfs_io: add crc32 self test
2018-10-29 18:11 [PATCH] xfs_io: add crc32 self test Darrick J. Wong
2018-10-29 18:30 ` Eric Sandeen
@ 2018-10-29 19:10 ` Darrick J. Wong
1 sibling, 0 replies; 4+ messages in thread
From: Darrick J. Wong @ 2018-10-29 19:10 UTC (permalink / raw)
To: Eric Sandeen; +Cc: xfs
From: Darrick J. Wong <darrick.wong@oracle.com>
Add a self test for crc32c into xfs_io so that xfstests can check the
operation of the (potentially cross-compiled) package binaries by
isolating the self test code to a header file that can be included by
the build system self test and xfs_io.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
---
v2: crc32selftest -> crc32cselftest, other command form changes
---
include/crc32cselftest.h | 706 ++++++++++++++++++++++++++++++++++++++++++++++
io/Makefile | 8 -
io/crc32cselftest.c | 37 ++
io/init.c | 1
io/io.h | 1
libfrog/crc32.c | 669 --------------------------------------------
man/man8/xfs_io.8 | 4
7 files changed, 754 insertions(+), 672 deletions(-)
create mode 100644 include/crc32cselftest.h
create mode 100644 io/crc32cselftest.c
diff --git a/include/crc32cselftest.h b/include/crc32cselftest.h
new file mode 100644
index 00000000..11da676b
--- /dev/null
+++ b/include/crc32cselftest.h
@@ -0,0 +1,706 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Aug 8, 2011 Bob Pearson with help from Joakim Tjernlund and George Spelvin
+ * cleaned up code to current version of sparse and added the slicing-by-8
+ * algorithm to the closely similar existing slicing-by-4 algorithm.
+ * Oct 15, 2000 Matt Domsch <Matt_Domsch@dell.com>
+ * Nicer crc32 functions/docs submitted by linux@horizon.com. Thanks!
+ * Code was from the public domain, copyright abandoned. Code was
+ * subsequently included in the kernel, thus was re-licensed under the
+ * GNU GPL v2.
+ * Oct 12, 2000 Matt Domsch <Matt_Domsch@dell.com>
+ * Same crc32 function was used in 5 other places in the kernel.
+ * I made one version, and deleted the others.
+ * There are various incantations of crc32(). Some use a seed of 0 or ~0.
+ * Some xor at the end with ~0. The generic crc32() function takes
+ * seed as an argument, and doesn't xor at the end. Then individual
+ * users can do whatever they need.
+ * drivers/net/smc9194.c uses seed ~0, doesn't xor with ~0.
+ * fs/jffs2 uses seed 0, doesn't xor with ~0.
+ * fs/partitions/efi.c uses seed ~0, xor's with ~0.
+ */
+
+/* see: Documentation/crc32.txt for a description of algorithms */
+
+/*
+ * lifted from the 3.8-rc2 kernel source for xfsprogs. Killed CONFIG_X86
+ * specific bits for just the generic algorithm. Also removed the big endian
+ * version of the algorithm as XFS only uses the little endian CRC version to
+ * match the hardware acceleration available on Intel CPUs.
+ */
+
+/* This is just the crc32 self test bits from crc32.c. */
+
+#ifndef _LIBFROG_CRC32CSELFTEST_H_
+#define _LIBFROG_CRC32CSELFTEST_H_
+
+/* 4096 random bytes */
+static uint8_t __attribute__((__aligned__(8))) test_buf[] =
+{
+ 0x5b, 0x85, 0x21, 0xcb, 0x09, 0x68, 0x7d, 0x30,
+ 0xc7, 0x69, 0xd7, 0x30, 0x92, 0xde, 0x59, 0xe4,
+ 0xc9, 0x6e, 0x8b, 0xdb, 0x98, 0x6b, 0xaa, 0x60,
+ 0xa8, 0xb5, 0xbc, 0x6c, 0xa9, 0xb1, 0x5b, 0x2c,
+ 0xea, 0xb4, 0x92, 0x6a, 0x3f, 0x79, 0x91, 0xe4,
+ 0xe9, 0x70, 0x51, 0x8c, 0x7f, 0x95, 0x6f, 0x1a,
+ 0x56, 0xa1, 0x5c, 0x27, 0x03, 0x67, 0x9f, 0x3a,
+ 0xe2, 0x31, 0x11, 0x29, 0x6b, 0x98, 0xfc, 0xc4,
+ 0x53, 0x24, 0xc5, 0x8b, 0xce, 0x47, 0xb2, 0xb9,
+ 0x32, 0xcb, 0xc1, 0xd0, 0x03, 0x57, 0x4e, 0xd4,
+ 0xe9, 0x3c, 0xa1, 0x63, 0xcf, 0x12, 0x0e, 0xca,
+ 0xe1, 0x13, 0xd1, 0x93, 0xa6, 0x88, 0x5c, 0x61,
+ 0x5b, 0xbb, 0xf0, 0x19, 0x46, 0xb4, 0xcf, 0x9e,
+ 0xb6, 0x6b, 0x4c, 0x3a, 0xcf, 0x60, 0xf9, 0x7a,
+ 0x8d, 0x07, 0x63, 0xdb, 0x40, 0xe9, 0x0b, 0x6f,
+ 0xad, 0x97, 0xf1, 0xed, 0xd0, 0x1e, 0x26, 0xfd,
+ 0xbf, 0xb7, 0xc8, 0x04, 0x94, 0xf8, 0x8b, 0x8c,
+ 0xf1, 0xab, 0x7a, 0xd4, 0xdd, 0xf3, 0xe8, 0x88,
+ 0xc3, 0xed, 0x17, 0x8a, 0x9b, 0x40, 0x0d, 0x53,
+ 0x62, 0x12, 0x03, 0x5f, 0x1b, 0x35, 0x32, 0x1f,
+ 0xb4, 0x7b, 0x93, 0x78, 0x0d, 0xdb, 0xce, 0xa4,
+ 0xc0, 0x47, 0xd5, 0xbf, 0x68, 0xe8, 0x5d, 0x74,
+ 0x8f, 0x8e, 0x75, 0x1c, 0xb2, 0x4f, 0x9a, 0x60,
+ 0xd1, 0xbe, 0x10, 0xf4, 0x5c, 0xa1, 0x53, 0x09,
+ 0xa5, 0xe0, 0x09, 0x54, 0x85, 0x5c, 0xdc, 0x07,
+ 0xe7, 0x21, 0x69, 0x7b, 0x8a, 0xfd, 0x90, 0xf1,
+ 0x22, 0xd0, 0xb4, 0x36, 0x28, 0xe6, 0xb8, 0x0f,
+ 0x39, 0xde, 0xc8, 0xf3, 0x86, 0x60, 0x34, 0xd2,
+ 0x5e, 0xdf, 0xfd, 0xcf, 0x0f, 0xa9, 0x65, 0xf0,
+ 0xd5, 0x4d, 0x96, 0x40, 0xe3, 0xdf, 0x3f, 0x95,
+ 0x5a, 0x39, 0x19, 0x93, 0xf4, 0x75, 0xce, 0x22,
+ 0x00, 0x1c, 0x93, 0xe2, 0x03, 0x66, 0xf4, 0x93,
+ 0x73, 0x86, 0x81, 0x8e, 0x29, 0x44, 0x48, 0x86,
+ 0x61, 0x7c, 0x48, 0xa3, 0x43, 0xd2, 0x9c, 0x8d,
+ 0xd4, 0x95, 0xdd, 0xe1, 0x22, 0x89, 0x3a, 0x40,
+ 0x4c, 0x1b, 0x8a, 0x04, 0xa8, 0x09, 0x69, 0x8b,
+ 0xea, 0xc6, 0x55, 0x8e, 0x57, 0xe6, 0x64, 0x35,
+ 0xf0, 0xc7, 0x16, 0x9f, 0x5d, 0x5e, 0x86, 0x40,
+ 0x46, 0xbb, 0xe5, 0x45, 0x88, 0xfe, 0xc9, 0x63,
+ 0x15, 0xfb, 0xf5, 0xbd, 0x71, 0x61, 0xeb, 0x7b,
+ 0x78, 0x70, 0x07, 0x31, 0x03, 0x9f, 0xb2, 0xc8,
+ 0xa7, 0xab, 0x47, 0xfd, 0xdf, 0xa0, 0x78, 0x72,
+ 0xa4, 0x2a, 0xe4, 0xb6, 0xba, 0xc0, 0x1e, 0x86,
+ 0x71, 0xe6, 0x3d, 0x18, 0x37, 0x70, 0xe6, 0xff,
+ 0xe0, 0xbc, 0x0b, 0x22, 0xa0, 0x1f, 0xd3, 0xed,
+ 0xa2, 0x55, 0x39, 0xab, 0xa8, 0x13, 0x73, 0x7c,
+ 0x3f, 0xb2, 0xd6, 0x19, 0xac, 0xff, 0x99, 0xed,
+ 0xe8, 0xe6, 0xa6, 0x22, 0xe3, 0x9c, 0xf1, 0x30,
+ 0xdc, 0x01, 0x0a, 0x56, 0xfa, 0xe4, 0xc9, 0x99,
+ 0xdd, 0xa8, 0xd8, 0xda, 0x35, 0x51, 0x73, 0xb4,
+ 0x40, 0x86, 0x85, 0xdb, 0x5c, 0xd5, 0x85, 0x80,
+ 0x14, 0x9c, 0xfd, 0x98, 0xa9, 0x82, 0xc5, 0x37,
+ 0xff, 0x32, 0x5d, 0xd0, 0x0b, 0xfa, 0xdc, 0x04,
+ 0x5e, 0x09, 0xd2, 0xca, 0x17, 0x4b, 0x1a, 0x8e,
+ 0x15, 0xe1, 0xcc, 0x4e, 0x52, 0x88, 0x35, 0xbd,
+ 0x48, 0xfe, 0x15, 0xa0, 0x91, 0xfd, 0x7e, 0x6c,
+ 0x0e, 0x5d, 0x79, 0x1b, 0x81, 0x79, 0xd2, 0x09,
+ 0x34, 0x70, 0x3d, 0x81, 0xec, 0xf6, 0x24, 0xbb,
+ 0xfb, 0xf1, 0x7b, 0xdf, 0x54, 0xea, 0x80, 0x9b,
+ 0xc7, 0x99, 0x9e, 0xbd, 0x16, 0x78, 0x12, 0x53,
+ 0x5e, 0x01, 0xa7, 0x4e, 0xbd, 0x67, 0xe1, 0x9b,
+ 0x4c, 0x0e, 0x61, 0x45, 0x97, 0xd2, 0xf0, 0x0f,
+ 0xfe, 0x15, 0x08, 0xb7, 0x11, 0x4c, 0xe7, 0xff,
+ 0x81, 0x53, 0xff, 0x91, 0x25, 0x38, 0x7e, 0x40,
+ 0x94, 0xe5, 0xe0, 0xad, 0xe6, 0xd9, 0x79, 0xb6,
+ 0x92, 0xc9, 0xfc, 0xde, 0xc3, 0x1a, 0x23, 0xbb,
+ 0xdd, 0xc8, 0x51, 0x0c, 0x3a, 0x72, 0xfa, 0x73,
+ 0x6f, 0xb7, 0xee, 0x61, 0x39, 0x03, 0x01, 0x3f,
+ 0x7f, 0x94, 0x2e, 0x2e, 0xba, 0x3a, 0xbb, 0xb4,
+ 0xfa, 0x6a, 0x17, 0xfe, 0xea, 0xef, 0x5e, 0x66,
+ 0x97, 0x3f, 0x32, 0x3d, 0xd7, 0x3e, 0xb1, 0xf1,
+ 0x6c, 0x14, 0x4c, 0xfd, 0x37, 0xd3, 0x38, 0x80,
+ 0xfb, 0xde, 0xa6, 0x24, 0x1e, 0xc8, 0xca, 0x7f,
+ 0x3a, 0x93, 0xd8, 0x8b, 0x18, 0x13, 0xb2, 0xe5,
+ 0xe4, 0x93, 0x05, 0x53, 0x4f, 0x84, 0x66, 0xa7,
+ 0x58, 0x5c, 0x7b, 0x86, 0x52, 0x6d, 0x0d, 0xce,
+ 0xa4, 0x30, 0x7d, 0xb6, 0x18, 0x9f, 0xeb, 0xff,
+ 0x22, 0xbb, 0x72, 0x29, 0xb9, 0x44, 0x0b, 0x48,
+ 0x1e, 0x84, 0x71, 0x81, 0xe3, 0x6d, 0x73, 0x26,
+ 0x92, 0xb4, 0x4d, 0x2a, 0x29, 0xb8, 0x1f, 0x72,
+ 0xed, 0xd0, 0xe1, 0x64, 0x77, 0xea, 0x8e, 0x88,
+ 0x0f, 0xef, 0x3f, 0xb1, 0x3b, 0xad, 0xf9, 0xc9,
+ 0x8b, 0xd0, 0xac, 0xc6, 0xcc, 0xa9, 0x40, 0xcc,
+ 0x76, 0xf6, 0x3b, 0x53, 0xb5, 0x88, 0xcb, 0xc8,
+ 0x37, 0xf1, 0xa2, 0xba, 0x23, 0x15, 0x99, 0x09,
+ 0xcc, 0xe7, 0x7a, 0x3b, 0x37, 0xf7, 0x58, 0xc8,
+ 0x46, 0x8c, 0x2b, 0x2f, 0x4e, 0x0e, 0xa6, 0x5c,
+ 0xea, 0x85, 0x55, 0xba, 0x02, 0x0e, 0x0e, 0x48,
+ 0xbc, 0xe1, 0xb1, 0x01, 0x35, 0x79, 0x13, 0x3d,
+ 0x1b, 0xc0, 0x53, 0x68, 0x11, 0xe7, 0x95, 0x0f,
+ 0x9d, 0x3f, 0x4c, 0x47, 0x7b, 0x4d, 0x1c, 0xae,
+ 0x50, 0x9b, 0xcb, 0xdd, 0x05, 0x8d, 0x9a, 0x97,
+ 0xfd, 0x8c, 0xef, 0x0c, 0x1d, 0x67, 0x73, 0xa8,
+ 0x28, 0x36, 0xd5, 0xb6, 0x92, 0x33, 0x40, 0x75,
+ 0x0b, 0x51, 0xc3, 0x64, 0xba, 0x1d, 0xc2, 0xcc,
+ 0xee, 0x7d, 0x54, 0x0f, 0x27, 0x69, 0xa7, 0x27,
+ 0x63, 0x30, 0x29, 0xd9, 0xc8, 0x84, 0xd8, 0xdf,
+ 0x9f, 0x68, 0x8d, 0x04, 0xca, 0xa6, 0xc5, 0xc7,
+ 0x7a, 0x5c, 0xc8, 0xd1, 0xcb, 0x4a, 0xec, 0xd0,
+ 0xd8, 0x20, 0x69, 0xc5, 0x17, 0xcd, 0x78, 0xc8,
+ 0x75, 0x23, 0x30, 0x69, 0xc9, 0xd4, 0xea, 0x5c,
+ 0x4f, 0x6b, 0x86, 0x3f, 0x8b, 0xfe, 0xee, 0x44,
+ 0xc9, 0x7c, 0xb7, 0xdd, 0x3e, 0xe5, 0xec, 0x54,
+ 0x03, 0x3e, 0xaa, 0x82, 0xc6, 0xdf, 0xb2, 0x38,
+ 0x0e, 0x5d, 0xb3, 0x88, 0xd9, 0xd3, 0x69, 0x5f,
+ 0x8f, 0x70, 0x8a, 0x7e, 0x11, 0xd9, 0x1e, 0x7b,
+ 0x38, 0xf1, 0x42, 0x1a, 0xc0, 0x35, 0xf5, 0xc7,
+ 0x36, 0x85, 0xf5, 0xf7, 0xb8, 0x7e, 0xc7, 0xef,
+ 0x18, 0xf1, 0x63, 0xd6, 0x7a, 0xc6, 0xc9, 0x0e,
+ 0x4d, 0x69, 0x4f, 0x84, 0xef, 0x26, 0x41, 0x0c,
+ 0xec, 0xc7, 0xe0, 0x7e, 0x3c, 0x67, 0x01, 0x4c,
+ 0x62, 0x1a, 0x20, 0x6f, 0xee, 0x47, 0x4d, 0xc0,
+ 0x99, 0x13, 0x8d, 0x91, 0x4a, 0x26, 0xd4, 0x37,
+ 0x28, 0x90, 0x58, 0x75, 0x66, 0x2b, 0x0a, 0xdf,
+ 0xda, 0xee, 0x92, 0x25, 0x90, 0x62, 0x39, 0x9e,
+ 0x44, 0x98, 0xad, 0xc1, 0x88, 0xed, 0xe4, 0xb4,
+ 0xaf, 0xf5, 0x8c, 0x9b, 0x48, 0x4d, 0x56, 0x60,
+ 0x97, 0x0f, 0x61, 0x59, 0x9e, 0xa6, 0x27, 0xfe,
+ 0xc1, 0x91, 0x15, 0x38, 0xb8, 0x0f, 0xae, 0x61,
+ 0x7d, 0x26, 0x13, 0x5a, 0x73, 0xff, 0x1c, 0xa3,
+ 0x61, 0x04, 0x58, 0x48, 0x55, 0x44, 0x11, 0xfe,
+ 0x15, 0xca, 0xc3, 0xbd, 0xca, 0xc5, 0xb4, 0x40,
+ 0x5d, 0x1b, 0x7f, 0x39, 0xb5, 0x9c, 0x35, 0xec,
+ 0x61, 0x15, 0x32, 0x32, 0xb8, 0x4e, 0x40, 0x9f,
+ 0x17, 0x1f, 0x0a, 0x4d, 0xa9, 0x91, 0xef, 0xb7,
+ 0xb0, 0xeb, 0xc2, 0x83, 0x9a, 0x6c, 0xd2, 0x79,
+ 0x43, 0x78, 0x5e, 0x2f, 0xe5, 0xdd, 0x1a, 0x3c,
+ 0x45, 0xab, 0x29, 0x40, 0x3a, 0x37, 0x5b, 0x6f,
+ 0xd7, 0xfc, 0x48, 0x64, 0x3c, 0x49, 0xfb, 0x21,
+ 0xbe, 0xc3, 0xff, 0x07, 0xfb, 0x17, 0xe9, 0xc9,
+ 0x0c, 0x4c, 0x5c, 0x15, 0x9e, 0x8e, 0x22, 0x30,
+ 0x0a, 0xde, 0x48, 0x7f, 0xdb, 0x0d, 0xd1, 0x2b,
+ 0x87, 0x38, 0x9e, 0xcc, 0x5a, 0x01, 0x16, 0xee,
+ 0x75, 0x49, 0x0d, 0x30, 0x01, 0x34, 0x6a, 0xb6,
+ 0x9a, 0x5a, 0x2a, 0xec, 0xbb, 0x48, 0xac, 0xd3,
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+ 0x1e, 0x20, 0xad, 0xd8, 0xf2, 0x31, 0xdd, 0xc4,
+ 0x8b, 0x0c, 0x77, 0xbe, 0xe1, 0x8b, 0x26, 0x00,
+ 0x02, 0x58, 0xd6, 0x8d, 0xef, 0xad, 0x74, 0x67,
+ 0xab, 0x3f, 0xef, 0xcb, 0x6f, 0xb0, 0xcc, 0x81,
+ 0x44, 0x4c, 0xaf, 0xe9, 0x49, 0x4f, 0xdb, 0xa0,
+ 0x25, 0xa4, 0xf0, 0x89, 0xf1, 0xbe, 0xd8, 0x10,
+ 0xff, 0xb1, 0x3b, 0x4b, 0xfa, 0x98, 0xf5, 0x79,
+ 0x6d, 0x1e, 0x69, 0x4d, 0x57, 0xb1, 0xc8, 0x19,
+ 0x1b, 0xbd, 0x1e, 0x8c, 0x84, 0xb7, 0x7b, 0xe8,
+ 0xd2, 0x2d, 0x09, 0x41, 0x41, 0x37, 0x3d, 0xb1,
+ 0x6f, 0x26, 0x5d, 0x71, 0x16, 0x3d, 0xb7, 0x83,
+ 0x27, 0x2c, 0xa7, 0xb6, 0x50, 0xbd, 0x91, 0x86,
+ 0xab, 0x24, 0xa1, 0x38, 0xfd, 0xea, 0x71, 0x55,
+ 0x7e, 0x9a, 0x07, 0x77, 0x4b, 0xfa, 0x61, 0x66,
+ 0x20, 0x1e, 0x28, 0x95, 0x18, 0x1b, 0xa4, 0xa0,
+ 0xfd, 0xc0, 0x89, 0x72, 0x43, 0xd9, 0x3b, 0x49,
+ 0x5a, 0x3f, 0x9d, 0xbf, 0xdb, 0xb4, 0x46, 0xea,
+ 0x42, 0x01, 0x77, 0x23, 0x68, 0x95, 0xb6, 0x24,
+ 0xb3, 0xa8, 0x6c, 0x28, 0x3b, 0x11, 0x40, 0x7e,
+ 0x18, 0x65, 0x6d, 0xd8, 0x24, 0x42, 0x7d, 0x88,
+ 0xc0, 0x52, 0xd9, 0x05, 0xe4, 0x95, 0x90, 0x87,
+ 0x8c, 0xf4, 0xd0, 0x6b, 0xb9, 0x83, 0x99, 0x34,
+ 0x6d, 0xfe, 0x54, 0x40, 0x94, 0x52, 0x21, 0x4f,
+ 0x14, 0x25, 0xc5, 0xd6, 0x5e, 0x95, 0xdc, 0x0a,
+ 0x2b, 0x89, 0x20, 0x11, 0x84, 0x48, 0xd6, 0x3a,
+ 0xcd, 0x5c, 0x24, 0xad, 0x62, 0xe3, 0xb1, 0x93,
+ 0x25, 0x8d, 0xcd, 0x7e, 0xfc, 0x27, 0xa3, 0x37,
+ 0xfd, 0x84, 0xfc, 0x1b, 0xb2, 0xf1, 0x27, 0x38,
+ 0x5a, 0xb7, 0xfc, 0xf2, 0xfa, 0x95, 0x66, 0xd4,
+ 0xfb, 0xba, 0xa7, 0xd7, 0xa3, 0x72, 0x69, 0x48,
+ 0x48, 0x8c, 0xeb, 0x28, 0x89, 0xfe, 0x33, 0x65,
+ 0x5a, 0x36, 0x01, 0x7e, 0x06, 0x79, 0x0a, 0x09,
+ 0x3b, 0x74, 0x11, 0x9a, 0x6e, 0xbf, 0xd4, 0x9e,
+ 0x58, 0x90, 0x49, 0x4f, 0x4d, 0x08, 0xd4, 0xe5,
+ 0x4a, 0x09, 0x21, 0xef, 0x8b, 0xb8, 0x74, 0x3b,
+ 0x91, 0xdd, 0x36, 0x85, 0x60, 0x2d, 0xfa, 0xd4,
+ 0x45, 0x7b, 0x45, 0x53, 0xf5, 0x47, 0x87, 0x7e,
+ 0xa6, 0x37, 0xc8, 0x78, 0x7a, 0x68, 0x9d, 0x8d,
+ 0x65, 0x2c, 0x0e, 0x91, 0x5c, 0xa2, 0x60, 0xf0,
+ 0x8e, 0x3f, 0xe9, 0x1a, 0xcd, 0xaa, 0xe7, 0xd5,
+ 0x77, 0x18, 0xaf, 0xc9, 0xbc, 0x18, 0xea, 0x48,
+ 0x1b, 0xfb, 0x22, 0x48, 0x70, 0x16, 0x29, 0x9e,
+ 0x5b, 0xc1, 0x2c, 0x66, 0x23, 0xbc, 0xf0, 0x1f,
+ 0xef, 0xaf, 0xe4, 0xd6, 0x04, 0x19, 0x82, 0x7a,
+ 0x0b, 0xba, 0x4b, 0x46, 0xb1, 0x6a, 0x85, 0x5d,
+ 0xb4, 0x73, 0xd6, 0x21, 0xa1, 0x71, 0x60, 0x14,
+ 0xee, 0x0a, 0x77, 0xc4, 0x66, 0x2e, 0xf9, 0x69,
+ 0x30, 0xaf, 0x41, 0x0b, 0xc8, 0x83, 0x3c, 0x53,
+ 0x99, 0x19, 0x27, 0x46, 0xf7, 0x41, 0x6e, 0x56,
+ 0xdc, 0x94, 0x28, 0x67, 0x4e, 0xb7, 0x25, 0x48,
+ 0x8a, 0xc2, 0xe0, 0x60, 0x96, 0xcc, 0x18, 0xf4,
+ 0x84, 0xdd, 0xa7, 0x5e, 0x3e, 0x05, 0x0b, 0x26,
+ 0x26, 0xb2, 0x5c, 0x1f, 0x57, 0x1a, 0x04, 0x7e,
+ 0x6a, 0xe3, 0x2f, 0xb4, 0x35, 0xb6, 0x38, 0x40,
+ 0x40, 0xcd, 0x6f, 0x87, 0x2e, 0xef, 0xa3, 0xd7,
+ 0xa9, 0xc2, 0xe8, 0x0d, 0x27, 0xdf, 0x44, 0x62,
+ 0x99, 0xa0, 0xfc, 0xcf, 0x81, 0x78, 0xcb, 0xfe,
+ 0xe5, 0xa0, 0x03, 0x4e, 0x6c, 0xd7, 0xf4, 0xaf,
+ 0x7a, 0xbb, 0x61, 0x82, 0xfe, 0x71, 0x89, 0xb2,
+ 0x22, 0x7c, 0x8e, 0x83, 0x04, 0xce, 0xf6, 0x5d,
+ 0x84, 0x8f, 0x95, 0x6a, 0x7f, 0xad, 0xfd, 0x32,
+ 0x9c, 0x5e, 0xe4, 0x9c, 0x89, 0x60, 0x54, 0xaa,
+ 0x96, 0x72, 0xd2, 0xd7, 0x36, 0x85, 0xa9, 0x45,
+ 0xd2, 0x2a, 0xa1, 0x81, 0x49, 0x6f, 0x7e, 0x04,
+ 0xfa, 0xe2, 0xfe, 0x90, 0x26, 0x77, 0x5a, 0x33,
+ 0xb8, 0x04, 0x9a, 0x7a, 0xe6, 0x4c, 0x4f, 0xad,
+ 0x72, 0x96, 0x08, 0x28, 0x58, 0x13, 0xf8, 0xc4,
+ 0x1c, 0xf0, 0xc3, 0x45, 0x95, 0x49, 0x20, 0x8c,
+ 0x9f, 0x39, 0x70, 0xe1, 0x77, 0xfe, 0xd5, 0x4b,
+ 0xaf, 0x86, 0xda, 0xef, 0x22, 0x06, 0x83, 0x36,
+ 0x29, 0x12, 0x11, 0x40, 0xbc, 0x3b, 0x86, 0xaa,
+ 0xaa, 0x65, 0x60, 0xc3, 0x80, 0xca, 0xed, 0xa9,
+ 0xf3, 0xb0, 0x79, 0x96, 0xa2, 0x55, 0x27, 0x28,
+ 0x55, 0x73, 0x26, 0xa5, 0x50, 0xea, 0x92, 0x4b,
+ 0x3c, 0x5c, 0x82, 0x33, 0xf0, 0x01, 0x3f, 0x03,
+ 0xc1, 0x08, 0x05, 0xbf, 0x98, 0xf4, 0x9b, 0x6d,
+ 0xa5, 0xa8, 0xb4, 0x82, 0x0c, 0x06, 0xfa, 0xff,
+ 0x2d, 0x08, 0xf3, 0x05, 0x4f, 0x57, 0x2a, 0x39,
+ 0xd4, 0x83, 0x0d, 0x75, 0x51, 0xd8, 0x5b, 0x1b,
+ 0xd3, 0x51, 0x5a, 0x32, 0x2a, 0x9b, 0x32, 0xb2,
+ 0xf2, 0xa4, 0x96, 0x12, 0xf2, 0xae, 0x40, 0x34,
+ 0x67, 0xa8, 0xf5, 0x44, 0xd5, 0x35, 0x53, 0xfe,
+ 0xa3, 0x60, 0x96, 0x63, 0x0f, 0x1f, 0x6e, 0xb0,
+ 0x5a, 0x42, 0xa6, 0xfc, 0x51, 0x0b, 0x60, 0x27,
+ 0xbc, 0x06, 0x71, 0xed, 0x65, 0x5b, 0x23, 0x86,
+ 0x4a, 0x07, 0x3b, 0x22, 0x07, 0x46, 0xe6, 0x90,
+ 0x3e, 0xf3, 0x25, 0x50, 0x1b, 0x4c, 0x7f, 0x03,
+ 0x08, 0xa8, 0x36, 0x6b, 0x87, 0xe5, 0xe3, 0xdb,
+ 0x9a, 0x38, 0x83, 0xff, 0x9f, 0x1a, 0x9f, 0x57,
+ 0xa4, 0x2a, 0xf6, 0x37, 0xbc, 0x1a, 0xff, 0xc9,
+ 0x1e, 0x35, 0x0c, 0xc3, 0x7c, 0xa3, 0xb2, 0xe5,
+ 0xd2, 0xc6, 0xb4, 0x57, 0x47, 0xe4, 0x32, 0x16,
+ 0x6d, 0xa9, 0xae, 0x64, 0xe6, 0x2d, 0x8d, 0xc5,
+ 0x8d, 0x50, 0x8e, 0xe8, 0x1a, 0x22, 0x34, 0x2a,
+ 0xd9, 0xeb, 0x51, 0x90, 0x4a, 0xb1, 0x41, 0x7d,
+ 0x64, 0xf9, 0xb9, 0x0d, 0xf6, 0x23, 0x33, 0xb0,
+ 0x33, 0xf4, 0xf7, 0x3f, 0x27, 0x84, 0xc6, 0x0f,
+ 0x54, 0xa5, 0xc0, 0x2e, 0xec, 0x0b, 0x3a, 0x48,
+ 0x6e, 0x80, 0x35, 0x81, 0x43, 0x9b, 0x90, 0xb1,
+ 0xd0, 0x2b, 0xea, 0x21, 0xdc, 0xda, 0x5b, 0x09,
+ 0xf4, 0xcc, 0x10, 0xb4, 0xc7, 0xfe, 0x79, 0x51,
+ 0xc3, 0xc5, 0xac, 0x88, 0x74, 0x84, 0x0b, 0x4b,
+ 0xca, 0x79, 0x16, 0x29, 0xfb, 0x69, 0x54, 0xdf,
+ 0x41, 0x7e, 0xe9, 0xc7, 0x8e, 0xea, 0xa5, 0xfe,
+ 0xfc, 0x76, 0x0e, 0x90, 0xc4, 0x92, 0x38, 0xad,
+ 0x7b, 0x48, 0xe6, 0x6e, 0xf7, 0x21, 0xfd, 0x4e,
+ 0x93, 0x0a, 0x7b, 0x41, 0x83, 0x68, 0xfb, 0x57,
+ 0x51, 0x76, 0x34, 0xa9, 0x6c, 0x00, 0xaa, 0x4f,
+ 0x66, 0x65, 0x98, 0x4a, 0x4f, 0xa3, 0xa0, 0xef,
+ 0x69, 0x3f, 0xe3, 0x1c, 0x92, 0x8c, 0xfd, 0xd8,
+ 0xe8, 0xde, 0x7c, 0x7f, 0x3e, 0x84, 0x8e, 0x69,
+ 0x3c, 0xf1, 0xf2, 0x05, 0x46, 0xdc, 0x2f, 0x9d,
+ 0x5e, 0x6e, 0x4c, 0xfb, 0xb5, 0x99, 0x2a, 0x59,
+ 0x63, 0xc1, 0x34, 0xbc, 0x57, 0xc0, 0x0d, 0xb9,
+ 0x61, 0x25, 0xf3, 0x33, 0x23, 0x51, 0xb6, 0x0d,
+ 0x07, 0xa6, 0xab, 0x94, 0x4a, 0xb7, 0x2a, 0xea,
+ 0xee, 0xac, 0xa3, 0xc3, 0x04, 0x8b, 0x0e, 0x56,
+ 0xfe, 0x44, 0xa7, 0x39, 0xe2, 0xed, 0xed, 0xb4,
+ 0x22, 0x2b, 0xac, 0x12, 0x32, 0x28, 0x91, 0xd8,
+ 0xa5, 0xab, 0xff, 0x5f, 0xe0, 0x4b, 0xda, 0x78,
+ 0x17, 0xda, 0xf1, 0x01, 0x5b, 0xcd, 0xe2, 0x5f,
+ 0x50, 0x45, 0x73, 0x2b, 0xe4, 0x76, 0x77, 0xf4,
+ 0x64, 0x1d, 0x43, 0xfb, 0x84, 0x7a, 0xea, 0x91,
+ 0xae, 0xf9, 0x9e, 0xb7, 0xb4, 0xb0, 0x91, 0x5f,
+ 0x16, 0x35, 0x9a, 0x11, 0xb8, 0xc7, 0xc1, 0x8c,
+ 0xc6, 0x10, 0x8d, 0x2f, 0x63, 0x4a, 0xa7, 0x57,
+ 0x3a, 0x51, 0xd6, 0x32, 0x2d, 0x64, 0x72, 0xd4,
+ 0x66, 0xdc, 0x10, 0xa6, 0x67, 0xd6, 0x04, 0x23,
+ 0x9d, 0x0a, 0x11, 0x77, 0xdd, 0x37, 0x94, 0x17,
+ 0x3c, 0xbf, 0x8b, 0x65, 0xb0, 0x2e, 0x5e, 0x66,
+ 0x47, 0x64, 0xac, 0xdd, 0xf0, 0x84, 0xfd, 0x39,
+ 0xfa, 0x15, 0x5d, 0xef, 0xae, 0xca, 0xc1, 0x36,
+ 0xa7, 0x5c, 0xbf, 0xc7, 0x08, 0xc2, 0x66, 0x00,
+ 0x74, 0x74, 0x4e, 0x27, 0x3f, 0x55, 0x8a, 0xb7,
+ 0x38, 0x66, 0x83, 0x6d, 0xcf, 0x99, 0x9e, 0x60,
+ 0x8f, 0xdd, 0x2e, 0x62, 0x22, 0x0e, 0xef, 0x0c,
+ 0x98, 0xa7, 0x85, 0x74, 0x3b, 0x9d, 0xec, 0x9e,
+ 0xa9, 0x19, 0x72, 0xa5, 0x7f, 0x2c, 0x39, 0xb7,
+ 0x7d, 0xb7, 0xf1, 0x12, 0x65, 0x27, 0x4b, 0x5a,
+ 0xde, 0x17, 0xfe, 0xad, 0x44, 0xf3, 0x20, 0x4d,
+ 0xfd, 0xe4, 0x1f, 0xb5, 0x81, 0xb0, 0x36, 0x37,
+ 0x08, 0x6f, 0xc3, 0x0c, 0xe9, 0x85, 0x98, 0x82,
+ 0xa9, 0x62, 0x0c, 0xc4, 0x97, 0xc0, 0x50, 0xc8,
+ 0xa7, 0x3c, 0x50, 0x9f, 0x43, 0xb9, 0xcd, 0x5e,
+ 0x4d, 0xfa, 0x1c, 0x4b, 0x0b, 0xa9, 0x98, 0x85,
+ 0x38, 0x92, 0xac, 0x8d, 0xe4, 0xad, 0x9b, 0x98,
+ 0xab, 0xd9, 0x38, 0xac, 0x62, 0x52, 0xa3, 0x22,
+ 0x63, 0x0f, 0xbf, 0x95, 0x48, 0xdf, 0x69, 0xe7,
+ 0x8b, 0x33, 0xd5, 0xb2, 0xbd, 0x05, 0x49, 0x49,
+ 0x9d, 0x57, 0x73, 0x19, 0x33, 0xae, 0xfa, 0x33,
+ 0xf1, 0x19, 0xa8, 0x80, 0xce, 0x04, 0x9f, 0xbc,
+ 0x1d, 0x65, 0x82, 0x1b, 0xe5, 0x3a, 0x51, 0xc8,
+ 0x1c, 0x21, 0xe3, 0x5d, 0xf3, 0x7d, 0x9b, 0x2f,
+ 0x2c, 0x1d, 0x4a, 0x7f, 0x9b, 0x68, 0x35, 0xa3,
+ 0xb2, 0x50, 0xf7, 0x62, 0x79, 0xcd, 0xf4, 0x98,
+ 0x4f, 0xe5, 0x63, 0x7c, 0x3e, 0x45, 0x31, 0x8c,
+ 0x16, 0xa0, 0x12, 0xc8, 0x58, 0xce, 0x39, 0xa6,
+ 0xbc, 0x54, 0xdb, 0xc5, 0xe0, 0xd5, 0xba, 0xbc,
+ 0xb9, 0x04, 0xf4, 0x8d, 0xe8, 0x2f, 0x15, 0x9d,
+};
+
+/* 100 test cases */
+static struct crc_test {
+ uint32_t crc; /* random starting crc */
+ uint32_t start; /* random 6 bit offset in buf */
+ uint32_t length; /* random 11 bit length of test */
+ uint32_t crc32c_le; /* expected crc32c_le result */
+} test[] =
+{
+ {0x674bf11d, 0x00000038, 0x00000542, 0xf6e93d6c},
+ {0x35c672c6, 0x0000003a, 0x000001aa, 0x0fe92aca},
+ {0x496da28e, 0x00000039, 0x000005af, 0x52e1ebb8},
+ {0x09a9b90e, 0x00000027, 0x000001f8, 0x0798af9a},
+ {0xdc97e5a9, 0x00000025, 0x000003b6, 0x18eb3152},
+ {0x47c58900, 0x0000000a, 0x000000b9, 0xd00d08c7},
+ {0x292561e8, 0x0000000c, 0x00000403, 0x8ba966bc},
+ {0x415037f6, 0x00000003, 0x00000676, 0x11d694a2},
+ {0x3466e707, 0x00000026, 0x00000042, 0x6ab3208d},
+ {0xafd1281b, 0x00000023, 0x000002ee, 0xba4603c5},
+ {0xd3857b18, 0x00000028, 0x000004a2, 0xe6071c6f},
+ {0x1d825a8f, 0x0000002b, 0x0000050b, 0x179ec30a},
+ {0x5033e3bc, 0x0000000b, 0x00000078, 0x0903beb8},
+ {0x94f1fb5e, 0x0000000f, 0x000003a2, 0x6a7cb4fa},
+ {0xc9a0fe14, 0x00000009, 0x00000473, 0xdb535801},
+ {0x88a034b1, 0x0000001c, 0x000005ad, 0x92bed597},
+ {0xf0f72239, 0x00000020, 0x0000026d, 0x192a3f1b},
+ {0xcc20a5e3, 0x0000003b, 0x0000067a, 0xccbaec1a},
+ {0xce589c95, 0x0000002b, 0x00000641, 0x7eabae4d},
+ {0x78edc885, 0x00000035, 0x000005be, 0x28c72982},
+ {0x9d40a377, 0x0000003b, 0x00000038, 0xc3cd4d18},
+ {0x703d0e01, 0x0000003c, 0x000006f1, 0xbca8f0e7},
+ {0x776bf505, 0x0000000f, 0x000005b2, 0x713f60b3},
+ {0x4a3e7854, 0x00000027, 0x000004b8, 0xebd08fd5},
+ {0x209172dd, 0x0000003b, 0x00000356, 0x64406c59},
+ {0x3ba4cc5b, 0x0000002f, 0x00000203, 0x7421890e},
+ {0xfc62f297, 0x00000000, 0x00000079, 0xe9347603},
+ {0x64280b8b, 0x00000016, 0x000007ab, 0x1bef9060},
+ {0x97dd724b, 0x00000033, 0x000007ad, 0x34720072},
+ {0x61394b52, 0x00000035, 0x00000571, 0x48310f59},
+ {0x29b4faff, 0x00000024, 0x0000006e, 0x783a4213},
+ {0x29bfb1dc, 0x0000000b, 0x00000244, 0x9e8efd41},
+ {0x86ae934b, 0x00000035, 0x00000104, 0xfc3d34a5},
+ {0xc4c1024e, 0x0000002e, 0x000006b1, 0x17a52ae2},
+ {0x3287a80a, 0x00000026, 0x00000496, 0x886d935a},
+ {0xa4db423e, 0x00000023, 0x0000045d, 0xeaaeaeb2},
+ {0x7a1078df, 0x00000015, 0x0000014a, 0x8e900a4b},
+ {0x6048bd5b, 0x00000006, 0x0000006a, 0xd74662b1},
+ {0xd8f9ea20, 0x0000003d, 0x00000277, 0xd26752ba},
+ {0xea5ec3b4, 0x0000002a, 0x000004fe, 0x8b1fcd62},
+ {0x2dfb005d, 0x00000016, 0x00000345, 0xf54342fe},
+ {0x5a214ade, 0x00000020, 0x000005b6, 0x5b95b988},
+ {0xf0ab9cca, 0x00000032, 0x00000515, 0x2e1176be},
+ {0x91b444f9, 0x0000002e, 0x000007f8, 0x66120546},
+ {0x1b5d2ddb, 0x0000002e, 0x0000012c, 0xf256a5cc},
+ {0xd824d1bb, 0x0000003a, 0x000007b5, 0x4af1dd69},
+ {0x0470180c, 0x00000034, 0x000001f0, 0x56f0a04a},
+ {0xffaa3a3f, 0x00000036, 0x00000299, 0x74f6b6b2},
+ {0x6406cfeb, 0x00000023, 0x00000600, 0x085951fd},
+ {0xb24aaa38, 0x0000003e, 0x000004a1, 0xc65387eb},
+ {0x58b2ab7c, 0x00000039, 0x000002b4, 0x1ca9257b},
+ {0x3db85970, 0x00000006, 0x000002b6, 0xfd196d76},
+ {0x857830c5, 0x00000003, 0x00000590, 0x5ef88339},
+ {0xe1fcd978, 0x0000003e, 0x000007d8, 0x2c3714d9},
+ {0xb982a768, 0x00000016, 0x000006e0, 0x58576548},
+ {0x1d581ce8, 0x0000001e, 0x0000058b, 0xfd7c57de},
+ {0x2456719b, 0x00000025, 0x00000503, 0xd5fedd59},
+ {0xfae6d8f2, 0x00000000, 0x0000055d, 0x1cc3b17b},
+ {0xcba828e3, 0x00000039, 0x000002ce, 0x270eed73},
+ {0x13d25952, 0x0000000a, 0x0000072d, 0x91ecbb11},
+ {0x0342be3f, 0x00000015, 0x00000599, 0x05ed8d0c},
+ {0xeaa344e0, 0x00000014, 0x000004d8, 0x0b09ad5b},
+ {0xbbb52021, 0x0000003b, 0x00000272, 0xf8d511fb},
+ {0xb66384dc, 0x0000001d, 0x000007fc, 0x5ad832cc},
+ {0x616c01b6, 0x00000022, 0x000002c8, 0x1214d196},
+ {0xce2bdaad, 0x00000016, 0x0000062a, 0x5747218a},
+ {0x00fe84d7, 0x00000005, 0x00000205, 0xde8f14de},
+ {0xbebdcb4c, 0x00000006, 0x0000055d, 0x3563b7b9},
+ {0xd8b1a02a, 0x00000010, 0x00000387, 0x071475d0},
+ {0x3b96cad2, 0x00000036, 0x00000347, 0x54c79d60},
+ {0xc94c1ed7, 0x00000005, 0x0000038b, 0x4c53eee6},
+ {0x1aad454e, 0x00000025, 0x000002b2, 0x10137a3c},
+ {0xa4fec9a6, 0x00000000, 0x000006d6, 0xaa9d6c73},
+ {0x1bbe71e2, 0x0000001f, 0x000002fd, 0xb63d23e7},
+ {0x4201c7e4, 0x00000002, 0x000002b7, 0x7f53e9cf},
+ {0x23fddc96, 0x00000003, 0x00000627, 0x13c1cd83},
+ {0xd82ba25c, 0x00000016, 0x0000063e, 0x49ff5867},
+ {0x786f2032, 0x0000002d, 0x0000060f, 0x8467f211},
+ {0xfebe4e1f, 0x0000002a, 0x000004f2, 0x3f9683b2},
+ {0x1a6e0a39, 0x00000008, 0x00000672, 0x76a3f874},
+ {0x56000ab8, 0x0000000e, 0x000000e5, 0x863b702f},
+ {0x4717fe0c, 0x00000000, 0x000006ec, 0xdc6c58ff},
+ {0xd5d5d68e, 0x0000003c, 0x000003a3, 0x0622cc95},
+ {0xc25dd6c6, 0x00000024, 0x000006c0, 0xe85605cd},
+ {0xe9b11300, 0x00000023, 0x00000683, 0x31da5f06},
+ {0x95cd285e, 0x00000001, 0x00000047, 0xa1f2e784},
+ {0xd9245a25, 0x0000001e, 0x000003a6, 0xb07cc616},
+ {0x103279db, 0x00000006, 0x0000039b, 0xbf943b6c},
+ {0x1cba3172, 0x00000027, 0x000001c8, 0x2c01af1c},
+ {0x8f613739, 0x0000000c, 0x000001df, 0x0fe5f56d},
+ {0x1c6aa90d, 0x0000001b, 0x0000053c, 0xf8943b2d},
+ {0xaabe5b93, 0x0000003d, 0x00000715, 0xe4d89272},
+ {0xf15dd038, 0x00000006, 0x000006db, 0x7c2f6bbb},
+ {0x584dd49c, 0x00000020, 0x000007bc, 0xabbf388b},
+ {0x5d8c9506, 0x00000020, 0x00000470, 0x1dca1f4e},
+ {0xb80d17b0, 0x00000032, 0x00000346, 0x5c170e23},
+ {0xdaf0592e, 0x00000023, 0x000007b0, 0xc0e9d672},
+ {0x4793cc85, 0x0000000d, 0x00000706, 0xc18bdc86},
+ {0x82ebf64e, 0x00000009, 0x000007c3, 0xa874fcdd},
+ {0xb18a0319, 0x00000026, 0x000007db, 0x9dc0bb48},
+};
+
+static int
+crc32c_test(void)
+{
+ int i;
+ int errors = 0;
+ int bytes = 0;
+ struct timeval start, stop;
+ uint64_t usec;
+
+ /* keep static to prevent cache warming code from
+ * getting eliminated by the compiler */
+ static uint32_t crc;
+
+ /* pre-warm the cache */
+ for (i = 0; i < 100; i++) {
+ bytes += 2*test[i].length;
+
+ crc ^= crc32c_le(test[i].crc, test_buf +
+ test[i].start, test[i].length);
+ }
+
+ gettimeofday(&start, NULL);
+ for (i = 0; i < 100; i++) {
+ if (test[i].crc32c_le != crc32c_le(test[i].crc, test_buf +
+ test[i].start, test[i].length))
+ errors++;
+ }
+ gettimeofday(&stop, NULL);
+
+ usec = stop.tv_usec - start.tv_usec +
+ 1000000 * (stop.tv_sec - start.tv_sec);
+
+ if (errors)
+ printf("crc32c: %d self tests failed\n", errors);
+ else {
+ printf("crc32c: tests passed, %d bytes in %" PRIu64 " usec\n",
+ bytes, usec);
+ }
+
+ return errors;
+}
+
+#endif /* _LIBFROG_CRC32CSELFTEST_H_ */
diff --git a/io/Makefile b/io/Makefile
index 6270fc16..484e2b5a 100644
--- a/io/Makefile
+++ b/io/Makefile
@@ -9,10 +9,10 @@ LTCOMMAND = xfs_io
LSRCFILES = xfs_bmap.sh xfs_freeze.sh xfs_mkfile.sh
HFILES = init.h io.h
CFILES = init.c \
- attr.c bmap.c cowextsize.c encrypt.c file.c freeze.c fsync.c \
- getrusage.c imap.c inject.c label.c link.c mmap.c open.c parent.c \
- pread.c prealloc.c pwrite.c reflink.c resblks.c scrub.c seek.c \
- shutdown.c stat.c swapext.c sync.c truncate.c utimes.c
+ attr.c bmap.c crc32cselftest.c cowextsize.c encrypt.c file.c freeze.c \
+ fsync.c getrusage.c imap.c inject.c label.c link.c mmap.c open.c \
+ parent.c pread.c prealloc.c pwrite.c reflink.c resblks.c scrub.c \
+ seek.c shutdown.c stat.c swapext.c sync.c truncate.c utimes.c
LLDLIBS = $(LIBXCMD) $(LIBHANDLE) $(LIBFROG) $(LIBPTHREAD)
LTDEPENDENCIES = $(LIBXCMD) $(LIBHANDLE) $(LIBFROG)
diff --git a/io/crc32cselftest.c b/io/crc32cselftest.c
new file mode 100644
index 00000000..28201384
--- /dev/null
+++ b/io/crc32cselftest.c
@@ -0,0 +1,37 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2018 Oracle, Inc.
+ * All Rights Reserved.
+ */
+
+#include "platform_defs.h"
+#include "command.h"
+#include "init.h"
+#include "io.h"
+#include "crc32c.h"
+#include "crc32cselftest.h"
+
+static int
+crc32cselftest_f(
+ int argc,
+ char **argv)
+{
+ return crc32c_test() != 0;
+}
+
+static const cmdinfo_t crc32cselftest_cmd = {
+ .name = "crc32cselftest",
+ .cfunc = crc32cselftest_f,
+ .argmin = 0,
+ .argmax = 0,
+ .canpush = 0,
+ .flags = CMD_FLAG_ONESHOT | CMD_FLAG_FOREIGN_OK |
+ CMD_NOFILE_OK | CMD_NOMAP_OK,
+ .oneline = N_("self test of crc32c implementation"),
+};
+
+void
+crc32cselftest_init(void)
+{
+ add_command(&crc32cselftest_cmd);
+}
diff --git a/io/init.c b/io/init.c
index b5eade39..83f08f2d 100644
--- a/io/init.c
+++ b/io/init.c
@@ -85,6 +85,7 @@ init_commands(void)
sync_range_init();
truncate_init();
utimes_init();
+ crc32cselftest_init();
}
/*
diff --git a/io/io.h b/io/io.h
index 9278ad00..75ce7aab 100644
--- a/io/io.h
+++ b/io/io.h
@@ -182,3 +182,4 @@ extern void log_writes_init(void);
extern void scrub_init(void);
extern void repair_init(void);
+extern void crc32cselftest_init(void);
diff --git a/libfrog/crc32.c b/libfrog/crc32.c
index 1d52f683..a61452e0 100644
--- a/libfrog/crc32.c
+++ b/libfrog/crc32.c
@@ -180,674 +180,7 @@ u32 __pure crc32c_le(u32 crc, unsigned char const *p, size_t len)
#ifdef CRC32_SELFTEST
-
-/* 4096 random bytes */
-static u8 __attribute__((__aligned__(8))) test_buf[] =
-{
- 0x5b, 0x85, 0x21, 0xcb, 0x09, 0x68, 0x7d, 0x30,
- 0xc7, 0x69, 0xd7, 0x30, 0x92, 0xde, 0x59, 0xe4,
- 0xc9, 0x6e, 0x8b, 0xdb, 0x98, 0x6b, 0xaa, 0x60,
- 0xa8, 0xb5, 0xbc, 0x6c, 0xa9, 0xb1, 0x5b, 0x2c,
- 0xea, 0xb4, 0x92, 0x6a, 0x3f, 0x79, 0x91, 0xe4,
- 0xe9, 0x70, 0x51, 0x8c, 0x7f, 0x95, 0x6f, 0x1a,
- 0x56, 0xa1, 0x5c, 0x27, 0x03, 0x67, 0x9f, 0x3a,
- 0xe2, 0x31, 0x11, 0x29, 0x6b, 0x98, 0xfc, 0xc4,
- 0x53, 0x24, 0xc5, 0x8b, 0xce, 0x47, 0xb2, 0xb9,
- 0x32, 0xcb, 0xc1, 0xd0, 0x03, 0x57, 0x4e, 0xd4,
- 0xe9, 0x3c, 0xa1, 0x63, 0xcf, 0x12, 0x0e, 0xca,
- 0xe1, 0x13, 0xd1, 0x93, 0xa6, 0x88, 0x5c, 0x61,
- 0x5b, 0xbb, 0xf0, 0x19, 0x46, 0xb4, 0xcf, 0x9e,
- 0xb6, 0x6b, 0x4c, 0x3a, 0xcf, 0x60, 0xf9, 0x7a,
- 0x8d, 0x07, 0x63, 0xdb, 0x40, 0xe9, 0x0b, 0x6f,
- 0xad, 0x97, 0xf1, 0xed, 0xd0, 0x1e, 0x26, 0xfd,
- 0xbf, 0xb7, 0xc8, 0x04, 0x94, 0xf8, 0x8b, 0x8c,
- 0xf1, 0xab, 0x7a, 0xd4, 0xdd, 0xf3, 0xe8, 0x88,
- 0xc3, 0xed, 0x17, 0x8a, 0x9b, 0x40, 0x0d, 0x53,
- 0x62, 0x12, 0x03, 0x5f, 0x1b, 0x35, 0x32, 0x1f,
- 0xb4, 0x7b, 0x93, 0x78, 0x0d, 0xdb, 0xce, 0xa4,
- 0xc0, 0x47, 0xd5, 0xbf, 0x68, 0xe8, 0x5d, 0x74,
- 0x8f, 0x8e, 0x75, 0x1c, 0xb2, 0x4f, 0x9a, 0x60,
- 0xd1, 0xbe, 0x10, 0xf4, 0x5c, 0xa1, 0x53, 0x09,
- 0xa5, 0xe0, 0x09, 0x54, 0x85, 0x5c, 0xdc, 0x07,
- 0xe7, 0x21, 0x69, 0x7b, 0x8a, 0xfd, 0x90, 0xf1,
- 0x22, 0xd0, 0xb4, 0x36, 0x28, 0xe6, 0xb8, 0x0f,
- 0x39, 0xde, 0xc8, 0xf3, 0x86, 0x60, 0x34, 0xd2,
- 0x5e, 0xdf, 0xfd, 0xcf, 0x0f, 0xa9, 0x65, 0xf0,
- 0xd5, 0x4d, 0x96, 0x40, 0xe3, 0xdf, 0x3f, 0x95,
- 0x5a, 0x39, 0x19, 0x93, 0xf4, 0x75, 0xce, 0x22,
- 0x00, 0x1c, 0x93, 0xe2, 0x03, 0x66, 0xf4, 0x93,
- 0x73, 0x86, 0x81, 0x8e, 0x29, 0x44, 0x48, 0x86,
- 0x61, 0x7c, 0x48, 0xa3, 0x43, 0xd2, 0x9c, 0x8d,
- 0xd4, 0x95, 0xdd, 0xe1, 0x22, 0x89, 0x3a, 0x40,
- 0x4c, 0x1b, 0x8a, 0x04, 0xa8, 0x09, 0x69, 0x8b,
- 0xea, 0xc6, 0x55, 0x8e, 0x57, 0xe6, 0x64, 0x35,
- 0xf0, 0xc7, 0x16, 0x9f, 0x5d, 0x5e, 0x86, 0x40,
- 0x46, 0xbb, 0xe5, 0x45, 0x88, 0xfe, 0xc9, 0x63,
- 0x15, 0xfb, 0xf5, 0xbd, 0x71, 0x61, 0xeb, 0x7b,
- 0x78, 0x70, 0x07, 0x31, 0x03, 0x9f, 0xb2, 0xc8,
- 0xa7, 0xab, 0x47, 0xfd, 0xdf, 0xa0, 0x78, 0x72,
- 0xa4, 0x2a, 0xe4, 0xb6, 0xba, 0xc0, 0x1e, 0x86,
- 0x71, 0xe6, 0x3d, 0x18, 0x37, 0x70, 0xe6, 0xff,
- 0xe0, 0xbc, 0x0b, 0x22, 0xa0, 0x1f, 0xd3, 0xed,
- 0xa2, 0x55, 0x39, 0xab, 0xa8, 0x13, 0x73, 0x7c,
- 0x3f, 0xb2, 0xd6, 0x19, 0xac, 0xff, 0x99, 0xed,
- 0xe8, 0xe6, 0xa6, 0x22, 0xe3, 0x9c, 0xf1, 0x30,
- 0xdc, 0x01, 0x0a, 0x56, 0xfa, 0xe4, 0xc9, 0x99,
- 0xdd, 0xa8, 0xd8, 0xda, 0x35, 0x51, 0x73, 0xb4,
- 0x40, 0x86, 0x85, 0xdb, 0x5c, 0xd5, 0x85, 0x80,
- 0x14, 0x9c, 0xfd, 0x98, 0xa9, 0x82, 0xc5, 0x37,
- 0xff, 0x32, 0x5d, 0xd0, 0x0b, 0xfa, 0xdc, 0x04,
- 0x5e, 0x09, 0xd2, 0xca, 0x17, 0x4b, 0x1a, 0x8e,
- 0x15, 0xe1, 0xcc, 0x4e, 0x52, 0x88, 0x35, 0xbd,
- 0x48, 0xfe, 0x15, 0xa0, 0x91, 0xfd, 0x7e, 0x6c,
- 0x0e, 0x5d, 0x79, 0x1b, 0x81, 0x79, 0xd2, 0x09,
- 0x34, 0x70, 0x3d, 0x81, 0xec, 0xf6, 0x24, 0xbb,
- 0xfb, 0xf1, 0x7b, 0xdf, 0x54, 0xea, 0x80, 0x9b,
- 0xc7, 0x99, 0x9e, 0xbd, 0x16, 0x78, 0x12, 0x53,
- 0x5e, 0x01, 0xa7, 0x4e, 0xbd, 0x67, 0xe1, 0x9b,
- 0x4c, 0x0e, 0x61, 0x45, 0x97, 0xd2, 0xf0, 0x0f,
- 0xfe, 0x15, 0x08, 0xb7, 0x11, 0x4c, 0xe7, 0xff,
- 0x81, 0x53, 0xff, 0x91, 0x25, 0x38, 0x7e, 0x40,
- 0x94, 0xe5, 0xe0, 0xad, 0xe6, 0xd9, 0x79, 0xb6,
- 0x92, 0xc9, 0xfc, 0xde, 0xc3, 0x1a, 0x23, 0xbb,
- 0xdd, 0xc8, 0x51, 0x0c, 0x3a, 0x72, 0xfa, 0x73,
- 0x6f, 0xb7, 0xee, 0x61, 0x39, 0x03, 0x01, 0x3f,
- 0x7f, 0x94, 0x2e, 0x2e, 0xba, 0x3a, 0xbb, 0xb4,
- 0xfa, 0x6a, 0x17, 0xfe, 0xea, 0xef, 0x5e, 0x66,
- 0x97, 0x3f, 0x32, 0x3d, 0xd7, 0x3e, 0xb1, 0xf1,
- 0x6c, 0x14, 0x4c, 0xfd, 0x37, 0xd3, 0x38, 0x80,
- 0xfb, 0xde, 0xa6, 0x24, 0x1e, 0xc8, 0xca, 0x7f,
- 0x3a, 0x93, 0xd8, 0x8b, 0x18, 0x13, 0xb2, 0xe5,
- 0xe4, 0x93, 0x05, 0x53, 0x4f, 0x84, 0x66, 0xa7,
- 0x58, 0x5c, 0x7b, 0x86, 0x52, 0x6d, 0x0d, 0xce,
- 0xa4, 0x30, 0x7d, 0xb6, 0x18, 0x9f, 0xeb, 0xff,
- 0x22, 0xbb, 0x72, 0x29, 0xb9, 0x44, 0x0b, 0x48,
- 0x1e, 0x84, 0x71, 0x81, 0xe3, 0x6d, 0x73, 0x26,
- 0x92, 0xb4, 0x4d, 0x2a, 0x29, 0xb8, 0x1f, 0x72,
- 0xed, 0xd0, 0xe1, 0x64, 0x77, 0xea, 0x8e, 0x88,
- 0x0f, 0xef, 0x3f, 0xb1, 0x3b, 0xad, 0xf9, 0xc9,
- 0x8b, 0xd0, 0xac, 0xc6, 0xcc, 0xa9, 0x40, 0xcc,
- 0x76, 0xf6, 0x3b, 0x53, 0xb5, 0x88, 0xcb, 0xc8,
- 0x37, 0xf1, 0xa2, 0xba, 0x23, 0x15, 0x99, 0x09,
- 0xcc, 0xe7, 0x7a, 0x3b, 0x37, 0xf7, 0x58, 0xc8,
- 0x46, 0x8c, 0x2b, 0x2f, 0x4e, 0x0e, 0xa6, 0x5c,
- 0xea, 0x85, 0x55, 0xba, 0x02, 0x0e, 0x0e, 0x48,
- 0xbc, 0xe1, 0xb1, 0x01, 0x35, 0x79, 0x13, 0x3d,
- 0x1b, 0xc0, 0x53, 0x68, 0x11, 0xe7, 0x95, 0x0f,
- 0x9d, 0x3f, 0x4c, 0x47, 0x7b, 0x4d, 0x1c, 0xae,
- 0x50, 0x9b, 0xcb, 0xdd, 0x05, 0x8d, 0x9a, 0x97,
- 0xfd, 0x8c, 0xef, 0x0c, 0x1d, 0x67, 0x73, 0xa8,
- 0x28, 0x36, 0xd5, 0xb6, 0x92, 0x33, 0x40, 0x75,
- 0x0b, 0x51, 0xc3, 0x64, 0xba, 0x1d, 0xc2, 0xcc,
- 0xee, 0x7d, 0x54, 0x0f, 0x27, 0x69, 0xa7, 0x27,
- 0x63, 0x30, 0x29, 0xd9, 0xc8, 0x84, 0xd8, 0xdf,
- 0x9f, 0x68, 0x8d, 0x04, 0xca, 0xa6, 0xc5, 0xc7,
- 0x7a, 0x5c, 0xc8, 0xd1, 0xcb, 0x4a, 0xec, 0xd0,
- 0xd8, 0x20, 0x69, 0xc5, 0x17, 0xcd, 0x78, 0xc8,
- 0x75, 0x23, 0x30, 0x69, 0xc9, 0xd4, 0xea, 0x5c,
- 0x4f, 0x6b, 0x86, 0x3f, 0x8b, 0xfe, 0xee, 0x44,
- 0xc9, 0x7c, 0xb7, 0xdd, 0x3e, 0xe5, 0xec, 0x54,
- 0x03, 0x3e, 0xaa, 0x82, 0xc6, 0xdf, 0xb2, 0x38,
- 0x0e, 0x5d, 0xb3, 0x88, 0xd9, 0xd3, 0x69, 0x5f,
- 0x8f, 0x70, 0x8a, 0x7e, 0x11, 0xd9, 0x1e, 0x7b,
- 0x38, 0xf1, 0x42, 0x1a, 0xc0, 0x35, 0xf5, 0xc7,
- 0x36, 0x85, 0xf5, 0xf7, 0xb8, 0x7e, 0xc7, 0xef,
- 0x18, 0xf1, 0x63, 0xd6, 0x7a, 0xc6, 0xc9, 0x0e,
- 0x4d, 0x69, 0x4f, 0x84, 0xef, 0x26, 0x41, 0x0c,
- 0xec, 0xc7, 0xe0, 0x7e, 0x3c, 0x67, 0x01, 0x4c,
- 0x62, 0x1a, 0x20, 0x6f, 0xee, 0x47, 0x4d, 0xc0,
- 0x99, 0x13, 0x8d, 0x91, 0x4a, 0x26, 0xd4, 0x37,
- 0x28, 0x90, 0x58, 0x75, 0x66, 0x2b, 0x0a, 0xdf,
- 0xda, 0xee, 0x92, 0x25, 0x90, 0x62, 0x39, 0x9e,
- 0x44, 0x98, 0xad, 0xc1, 0x88, 0xed, 0xe4, 0xb4,
- 0xaf, 0xf5, 0x8c, 0x9b, 0x48, 0x4d, 0x56, 0x60,
- 0x97, 0x0f, 0x61, 0x59, 0x9e, 0xa6, 0x27, 0xfe,
- 0xc1, 0x91, 0x15, 0x38, 0xb8, 0x0f, 0xae, 0x61,
- 0x7d, 0x26, 0x13, 0x5a, 0x73, 0xff, 0x1c, 0xa3,
- 0x61, 0x04, 0x58, 0x48, 0x55, 0x44, 0x11, 0xfe,
- 0x15, 0xca, 0xc3, 0xbd, 0xca, 0xc5, 0xb4, 0x40,
- 0x5d, 0x1b, 0x7f, 0x39, 0xb5, 0x9c, 0x35, 0xec,
- 0x61, 0x15, 0x32, 0x32, 0xb8, 0x4e, 0x40, 0x9f,
- 0x17, 0x1f, 0x0a, 0x4d, 0xa9, 0x91, 0xef, 0xb7,
- 0xb0, 0xeb, 0xc2, 0x83, 0x9a, 0x6c, 0xd2, 0x79,
- 0x43, 0x78, 0x5e, 0x2f, 0xe5, 0xdd, 0x1a, 0x3c,
- 0x45, 0xab, 0x29, 0x40, 0x3a, 0x37, 0x5b, 0x6f,
- 0xd7, 0xfc, 0x48, 0x64, 0x3c, 0x49, 0xfb, 0x21,
- 0xbe, 0xc3, 0xff, 0x07, 0xfb, 0x17, 0xe9, 0xc9,
- 0x0c, 0x4c, 0x5c, 0x15, 0x9e, 0x8e, 0x22, 0x30,
- 0x0a, 0xde, 0x48, 0x7f, 0xdb, 0x0d, 0xd1, 0x2b,
- 0x87, 0x38, 0x9e, 0xcc, 0x5a, 0x01, 0x16, 0xee,
- 0x75, 0x49, 0x0d, 0x30, 0x01, 0x34, 0x6a, 0xb6,
- 0x9a, 0x5a, 0x2a, 0xec, 0xbb, 0x48, 0xac, 0xd3,
- 0x77, 0x83, 0xd8, 0x08, 0x86, 0x4f, 0x48, 0x09,
- 0x29, 0x41, 0x79, 0xa1, 0x03, 0x12, 0xc4, 0xcd,
- 0x90, 0x55, 0x47, 0x66, 0x74, 0x9a, 0xcc, 0x4f,
- 0x35, 0x8c, 0xd6, 0x98, 0xef, 0xeb, 0x45, 0xb9,
- 0x9a, 0x26, 0x2f, 0x39, 0xa5, 0x70, 0x6d, 0xfc,
- 0xb4, 0x51, 0xee, 0xf4, 0x9c, 0xe7, 0x38, 0x59,
- 0xad, 0xf4, 0xbc, 0x46, 0xff, 0x46, 0x8e, 0x60,
- 0x9c, 0xa3, 0x60, 0x1d, 0xf8, 0x26, 0x72, 0xf5,
- 0x72, 0x9d, 0x68, 0x80, 0x04, 0xf6, 0x0b, 0xa1,
- 0x0a, 0xd5, 0xa7, 0x82, 0x3a, 0x3e, 0x47, 0xa8,
- 0x5a, 0xde, 0x59, 0x4f, 0x7b, 0x07, 0xb3, 0xe9,
- 0x24, 0x19, 0x3d, 0x34, 0x05, 0xec, 0xf1, 0xab,
- 0x6e, 0x64, 0x8f, 0xd3, 0xe6, 0x41, 0x86, 0x80,
- 0x70, 0xe3, 0x8d, 0x60, 0x9c, 0x34, 0x25, 0x01,
- 0x07, 0x4d, 0x19, 0x41, 0x4e, 0x3d, 0x5c, 0x7e,
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- 0xfd, 0xc0, 0x89, 0x72, 0x43, 0xd9, 0x3b, 0x49,
- 0x5a, 0x3f, 0x9d, 0xbf, 0xdb, 0xb4, 0x46, 0xea,
- 0x42, 0x01, 0x77, 0x23, 0x68, 0x95, 0xb6, 0x24,
- 0xb3, 0xa8, 0x6c, 0x28, 0x3b, 0x11, 0x40, 0x7e,
- 0x18, 0x65, 0x6d, 0xd8, 0x24, 0x42, 0x7d, 0x88,
- 0xc0, 0x52, 0xd9, 0x05, 0xe4, 0x95, 0x90, 0x87,
- 0x8c, 0xf4, 0xd0, 0x6b, 0xb9, 0x83, 0x99, 0x34,
- 0x6d, 0xfe, 0x54, 0x40, 0x94, 0x52, 0x21, 0x4f,
- 0x14, 0x25, 0xc5, 0xd6, 0x5e, 0x95, 0xdc, 0x0a,
- 0x2b, 0x89, 0x20, 0x11, 0x84, 0x48, 0xd6, 0x3a,
- 0xcd, 0x5c, 0x24, 0xad, 0x62, 0xe3, 0xb1, 0x93,
- 0x25, 0x8d, 0xcd, 0x7e, 0xfc, 0x27, 0xa3, 0x37,
- 0xfd, 0x84, 0xfc, 0x1b, 0xb2, 0xf1, 0x27, 0x38,
- 0x5a, 0xb7, 0xfc, 0xf2, 0xfa, 0x95, 0x66, 0xd4,
- 0xfb, 0xba, 0xa7, 0xd7, 0xa3, 0x72, 0x69, 0x48,
- 0x48, 0x8c, 0xeb, 0x28, 0x89, 0xfe, 0x33, 0x65,
- 0x5a, 0x36, 0x01, 0x7e, 0x06, 0x79, 0x0a, 0x09,
- 0x3b, 0x74, 0x11, 0x9a, 0x6e, 0xbf, 0xd4, 0x9e,
- 0x58, 0x90, 0x49, 0x4f, 0x4d, 0x08, 0xd4, 0xe5,
- 0x4a, 0x09, 0x21, 0xef, 0x8b, 0xb8, 0x74, 0x3b,
- 0x91, 0xdd, 0x36, 0x85, 0x60, 0x2d, 0xfa, 0xd4,
- 0x45, 0x7b, 0x45, 0x53, 0xf5, 0x47, 0x87, 0x7e,
- 0xa6, 0x37, 0xc8, 0x78, 0x7a, 0x68, 0x9d, 0x8d,
- 0x65, 0x2c, 0x0e, 0x91, 0x5c, 0xa2, 0x60, 0xf0,
- 0x8e, 0x3f, 0xe9, 0x1a, 0xcd, 0xaa, 0xe7, 0xd5,
- 0x77, 0x18, 0xaf, 0xc9, 0xbc, 0x18, 0xea, 0x48,
- 0x1b, 0xfb, 0x22, 0x48, 0x70, 0x16, 0x29, 0x9e,
- 0x5b, 0xc1, 0x2c, 0x66, 0x23, 0xbc, 0xf0, 0x1f,
- 0xef, 0xaf, 0xe4, 0xd6, 0x04, 0x19, 0x82, 0x7a,
- 0x0b, 0xba, 0x4b, 0x46, 0xb1, 0x6a, 0x85, 0x5d,
- 0xb4, 0x73, 0xd6, 0x21, 0xa1, 0x71, 0x60, 0x14,
- 0xee, 0x0a, 0x77, 0xc4, 0x66, 0x2e, 0xf9, 0x69,
- 0x30, 0xaf, 0x41, 0x0b, 0xc8, 0x83, 0x3c, 0x53,
- 0x99, 0x19, 0x27, 0x46, 0xf7, 0x41, 0x6e, 0x56,
- 0xdc, 0x94, 0x28, 0x67, 0x4e, 0xb7, 0x25, 0x48,
- 0x8a, 0xc2, 0xe0, 0x60, 0x96, 0xcc, 0x18, 0xf4,
- 0x84, 0xdd, 0xa7, 0x5e, 0x3e, 0x05, 0x0b, 0x26,
- 0x26, 0xb2, 0x5c, 0x1f, 0x57, 0x1a, 0x04, 0x7e,
- 0x6a, 0xe3, 0x2f, 0xb4, 0x35, 0xb6, 0x38, 0x40,
- 0x40, 0xcd, 0x6f, 0x87, 0x2e, 0xef, 0xa3, 0xd7,
- 0xa9, 0xc2, 0xe8, 0x0d, 0x27, 0xdf, 0x44, 0x62,
- 0x99, 0xa0, 0xfc, 0xcf, 0x81, 0x78, 0xcb, 0xfe,
- 0xe5, 0xa0, 0x03, 0x4e, 0x6c, 0xd7, 0xf4, 0xaf,
- 0x7a, 0xbb, 0x61, 0x82, 0xfe, 0x71, 0x89, 0xb2,
- 0x22, 0x7c, 0x8e, 0x83, 0x04, 0xce, 0xf6, 0x5d,
- 0x84, 0x8f, 0x95, 0x6a, 0x7f, 0xad, 0xfd, 0x32,
- 0x9c, 0x5e, 0xe4, 0x9c, 0x89, 0x60, 0x54, 0xaa,
- 0x96, 0x72, 0xd2, 0xd7, 0x36, 0x85, 0xa9, 0x45,
- 0xd2, 0x2a, 0xa1, 0x81, 0x49, 0x6f, 0x7e, 0x04,
- 0xfa, 0xe2, 0xfe, 0x90, 0x26, 0x77, 0x5a, 0x33,
- 0xb8, 0x04, 0x9a, 0x7a, 0xe6, 0x4c, 0x4f, 0xad,
- 0x72, 0x96, 0x08, 0x28, 0x58, 0x13, 0xf8, 0xc4,
- 0x1c, 0xf0, 0xc3, 0x45, 0x95, 0x49, 0x20, 0x8c,
- 0x9f, 0x39, 0x70, 0xe1, 0x77, 0xfe, 0xd5, 0x4b,
- 0xaf, 0x86, 0xda, 0xef, 0x22, 0x06, 0x83, 0x36,
- 0x29, 0x12, 0x11, 0x40, 0xbc, 0x3b, 0x86, 0xaa,
- 0xaa, 0x65, 0x60, 0xc3, 0x80, 0xca, 0xed, 0xa9,
- 0xf3, 0xb0, 0x79, 0x96, 0xa2, 0x55, 0x27, 0x28,
- 0x55, 0x73, 0x26, 0xa5, 0x50, 0xea, 0x92, 0x4b,
- 0x3c, 0x5c, 0x82, 0x33, 0xf0, 0x01, 0x3f, 0x03,
- 0xc1, 0x08, 0x05, 0xbf, 0x98, 0xf4, 0x9b, 0x6d,
- 0xa5, 0xa8, 0xb4, 0x82, 0x0c, 0x06, 0xfa, 0xff,
- 0x2d, 0x08, 0xf3, 0x05, 0x4f, 0x57, 0x2a, 0x39,
- 0xd4, 0x83, 0x0d, 0x75, 0x51, 0xd8, 0x5b, 0x1b,
- 0xd3, 0x51, 0x5a, 0x32, 0x2a, 0x9b, 0x32, 0xb2,
- 0xf2, 0xa4, 0x96, 0x12, 0xf2, 0xae, 0x40, 0x34,
- 0x67, 0xa8, 0xf5, 0x44, 0xd5, 0x35, 0x53, 0xfe,
- 0xa3, 0x60, 0x96, 0x63, 0x0f, 0x1f, 0x6e, 0xb0,
- 0x5a, 0x42, 0xa6, 0xfc, 0x51, 0x0b, 0x60, 0x27,
- 0xbc, 0x06, 0x71, 0xed, 0x65, 0x5b, 0x23, 0x86,
- 0x4a, 0x07, 0x3b, 0x22, 0x07, 0x46, 0xe6, 0x90,
- 0x3e, 0xf3, 0x25, 0x50, 0x1b, 0x4c, 0x7f, 0x03,
- 0x08, 0xa8, 0x36, 0x6b, 0x87, 0xe5, 0xe3, 0xdb,
- 0x9a, 0x38, 0x83, 0xff, 0x9f, 0x1a, 0x9f, 0x57,
- 0xa4, 0x2a, 0xf6, 0x37, 0xbc, 0x1a, 0xff, 0xc9,
- 0x1e, 0x35, 0x0c, 0xc3, 0x7c, 0xa3, 0xb2, 0xe5,
- 0xd2, 0xc6, 0xb4, 0x57, 0x47, 0xe4, 0x32, 0x16,
- 0x6d, 0xa9, 0xae, 0x64, 0xe6, 0x2d, 0x8d, 0xc5,
- 0x8d, 0x50, 0x8e, 0xe8, 0x1a, 0x22, 0x34, 0x2a,
- 0xd9, 0xeb, 0x51, 0x90, 0x4a, 0xb1, 0x41, 0x7d,
- 0x64, 0xf9, 0xb9, 0x0d, 0xf6, 0x23, 0x33, 0xb0,
- 0x33, 0xf4, 0xf7, 0x3f, 0x27, 0x84, 0xc6, 0x0f,
- 0x54, 0xa5, 0xc0, 0x2e, 0xec, 0x0b, 0x3a, 0x48,
- 0x6e, 0x80, 0x35, 0x81, 0x43, 0x9b, 0x90, 0xb1,
- 0xd0, 0x2b, 0xea, 0x21, 0xdc, 0xda, 0x5b, 0x09,
- 0xf4, 0xcc, 0x10, 0xb4, 0xc7, 0xfe, 0x79, 0x51,
- 0xc3, 0xc5, 0xac, 0x88, 0x74, 0x84, 0x0b, 0x4b,
- 0xca, 0x79, 0x16, 0x29, 0xfb, 0x69, 0x54, 0xdf,
- 0x41, 0x7e, 0xe9, 0xc7, 0x8e, 0xea, 0xa5, 0xfe,
- 0xfc, 0x76, 0x0e, 0x90, 0xc4, 0x92, 0x38, 0xad,
- 0x7b, 0x48, 0xe6, 0x6e, 0xf7, 0x21, 0xfd, 0x4e,
- 0x93, 0x0a, 0x7b, 0x41, 0x83, 0x68, 0xfb, 0x57,
- 0x51, 0x76, 0x34, 0xa9, 0x6c, 0x00, 0xaa, 0x4f,
- 0x66, 0x65, 0x98, 0x4a, 0x4f, 0xa3, 0xa0, 0xef,
- 0x69, 0x3f, 0xe3, 0x1c, 0x92, 0x8c, 0xfd, 0xd8,
- 0xe8, 0xde, 0x7c, 0x7f, 0x3e, 0x84, 0x8e, 0x69,
- 0x3c, 0xf1, 0xf2, 0x05, 0x46, 0xdc, 0x2f, 0x9d,
- 0x5e, 0x6e, 0x4c, 0xfb, 0xb5, 0x99, 0x2a, 0x59,
- 0x63, 0xc1, 0x34, 0xbc, 0x57, 0xc0, 0x0d, 0xb9,
- 0x61, 0x25, 0xf3, 0x33, 0x23, 0x51, 0xb6, 0x0d,
- 0x07, 0xa6, 0xab, 0x94, 0x4a, 0xb7, 0x2a, 0xea,
- 0xee, 0xac, 0xa3, 0xc3, 0x04, 0x8b, 0x0e, 0x56,
- 0xfe, 0x44, 0xa7, 0x39, 0xe2, 0xed, 0xed, 0xb4,
- 0x22, 0x2b, 0xac, 0x12, 0x32, 0x28, 0x91, 0xd8,
- 0xa5, 0xab, 0xff, 0x5f, 0xe0, 0x4b, 0xda, 0x78,
- 0x17, 0xda, 0xf1, 0x01, 0x5b, 0xcd, 0xe2, 0x5f,
- 0x50, 0x45, 0x73, 0x2b, 0xe4, 0x76, 0x77, 0xf4,
- 0x64, 0x1d, 0x43, 0xfb, 0x84, 0x7a, 0xea, 0x91,
- 0xae, 0xf9, 0x9e, 0xb7, 0xb4, 0xb0, 0x91, 0x5f,
- 0x16, 0x35, 0x9a, 0x11, 0xb8, 0xc7, 0xc1, 0x8c,
- 0xc6, 0x10, 0x8d, 0x2f, 0x63, 0x4a, 0xa7, 0x57,
- 0x3a, 0x51, 0xd6, 0x32, 0x2d, 0x64, 0x72, 0xd4,
- 0x66, 0xdc, 0x10, 0xa6, 0x67, 0xd6, 0x04, 0x23,
- 0x9d, 0x0a, 0x11, 0x77, 0xdd, 0x37, 0x94, 0x17,
- 0x3c, 0xbf, 0x8b, 0x65, 0xb0, 0x2e, 0x5e, 0x66,
- 0x47, 0x64, 0xac, 0xdd, 0xf0, 0x84, 0xfd, 0x39,
- 0xfa, 0x15, 0x5d, 0xef, 0xae, 0xca, 0xc1, 0x36,
- 0xa7, 0x5c, 0xbf, 0xc7, 0x08, 0xc2, 0x66, 0x00,
- 0x74, 0x74, 0x4e, 0x27, 0x3f, 0x55, 0x8a, 0xb7,
- 0x38, 0x66, 0x83, 0x6d, 0xcf, 0x99, 0x9e, 0x60,
- 0x8f, 0xdd, 0x2e, 0x62, 0x22, 0x0e, 0xef, 0x0c,
- 0x98, 0xa7, 0x85, 0x74, 0x3b, 0x9d, 0xec, 0x9e,
- 0xa9, 0x19, 0x72, 0xa5, 0x7f, 0x2c, 0x39, 0xb7,
- 0x7d, 0xb7, 0xf1, 0x12, 0x65, 0x27, 0x4b, 0x5a,
- 0xde, 0x17, 0xfe, 0xad, 0x44, 0xf3, 0x20, 0x4d,
- 0xfd, 0xe4, 0x1f, 0xb5, 0x81, 0xb0, 0x36, 0x37,
- 0x08, 0x6f, 0xc3, 0x0c, 0xe9, 0x85, 0x98, 0x82,
- 0xa9, 0x62, 0x0c, 0xc4, 0x97, 0xc0, 0x50, 0xc8,
- 0xa7, 0x3c, 0x50, 0x9f, 0x43, 0xb9, 0xcd, 0x5e,
- 0x4d, 0xfa, 0x1c, 0x4b, 0x0b, 0xa9, 0x98, 0x85,
- 0x38, 0x92, 0xac, 0x8d, 0xe4, 0xad, 0x9b, 0x98,
- 0xab, 0xd9, 0x38, 0xac, 0x62, 0x52, 0xa3, 0x22,
- 0x63, 0x0f, 0xbf, 0x95, 0x48, 0xdf, 0x69, 0xe7,
- 0x8b, 0x33, 0xd5, 0xb2, 0xbd, 0x05, 0x49, 0x49,
- 0x9d, 0x57, 0x73, 0x19, 0x33, 0xae, 0xfa, 0x33,
- 0xf1, 0x19, 0xa8, 0x80, 0xce, 0x04, 0x9f, 0xbc,
- 0x1d, 0x65, 0x82, 0x1b, 0xe5, 0x3a, 0x51, 0xc8,
- 0x1c, 0x21, 0xe3, 0x5d, 0xf3, 0x7d, 0x9b, 0x2f,
- 0x2c, 0x1d, 0x4a, 0x7f, 0x9b, 0x68, 0x35, 0xa3,
- 0xb2, 0x50, 0xf7, 0x62, 0x79, 0xcd, 0xf4, 0x98,
- 0x4f, 0xe5, 0x63, 0x7c, 0x3e, 0x45, 0x31, 0x8c,
- 0x16, 0xa0, 0x12, 0xc8, 0x58, 0xce, 0x39, 0xa6,
- 0xbc, 0x54, 0xdb, 0xc5, 0xe0, 0xd5, 0xba, 0xbc,
- 0xb9, 0x04, 0xf4, 0x8d, 0xe8, 0x2f, 0x15, 0x9d,
-};
-
-/* 100 test cases */
-static struct crc_test {
- u32 crc; /* random starting crc */
- u32 start; /* random 6 bit offset in buf */
- u32 length; /* random 11 bit length of test */
- u32 crc32c_le; /* expected crc32c_le result */
-} test[] =
-{
- {0x674bf11d, 0x00000038, 0x00000542, 0xf6e93d6c},
- {0x35c672c6, 0x0000003a, 0x000001aa, 0x0fe92aca},
- {0x496da28e, 0x00000039, 0x000005af, 0x52e1ebb8},
- {0x09a9b90e, 0x00000027, 0x000001f8, 0x0798af9a},
- {0xdc97e5a9, 0x00000025, 0x000003b6, 0x18eb3152},
- {0x47c58900, 0x0000000a, 0x000000b9, 0xd00d08c7},
- {0x292561e8, 0x0000000c, 0x00000403, 0x8ba966bc},
- {0x415037f6, 0x00000003, 0x00000676, 0x11d694a2},
- {0x3466e707, 0x00000026, 0x00000042, 0x6ab3208d},
- {0xafd1281b, 0x00000023, 0x000002ee, 0xba4603c5},
- {0xd3857b18, 0x00000028, 0x000004a2, 0xe6071c6f},
- {0x1d825a8f, 0x0000002b, 0x0000050b, 0x179ec30a},
- {0x5033e3bc, 0x0000000b, 0x00000078, 0x0903beb8},
- {0x94f1fb5e, 0x0000000f, 0x000003a2, 0x6a7cb4fa},
- {0xc9a0fe14, 0x00000009, 0x00000473, 0xdb535801},
- {0x88a034b1, 0x0000001c, 0x000005ad, 0x92bed597},
- {0xf0f72239, 0x00000020, 0x0000026d, 0x192a3f1b},
- {0xcc20a5e3, 0x0000003b, 0x0000067a, 0xccbaec1a},
- {0xce589c95, 0x0000002b, 0x00000641, 0x7eabae4d},
- {0x78edc885, 0x00000035, 0x000005be, 0x28c72982},
- {0x9d40a377, 0x0000003b, 0x00000038, 0xc3cd4d18},
- {0x703d0e01, 0x0000003c, 0x000006f1, 0xbca8f0e7},
- {0x776bf505, 0x0000000f, 0x000005b2, 0x713f60b3},
- {0x4a3e7854, 0x00000027, 0x000004b8, 0xebd08fd5},
- {0x209172dd, 0x0000003b, 0x00000356, 0x64406c59},
- {0x3ba4cc5b, 0x0000002f, 0x00000203, 0x7421890e},
- {0xfc62f297, 0x00000000, 0x00000079, 0xe9347603},
- {0x64280b8b, 0x00000016, 0x000007ab, 0x1bef9060},
- {0x97dd724b, 0x00000033, 0x000007ad, 0x34720072},
- {0x61394b52, 0x00000035, 0x00000571, 0x48310f59},
- {0x29b4faff, 0x00000024, 0x0000006e, 0x783a4213},
- {0x29bfb1dc, 0x0000000b, 0x00000244, 0x9e8efd41},
- {0x86ae934b, 0x00000035, 0x00000104, 0xfc3d34a5},
- {0xc4c1024e, 0x0000002e, 0x000006b1, 0x17a52ae2},
- {0x3287a80a, 0x00000026, 0x00000496, 0x886d935a},
- {0xa4db423e, 0x00000023, 0x0000045d, 0xeaaeaeb2},
- {0x7a1078df, 0x00000015, 0x0000014a, 0x8e900a4b},
- {0x6048bd5b, 0x00000006, 0x0000006a, 0xd74662b1},
- {0xd8f9ea20, 0x0000003d, 0x00000277, 0xd26752ba},
- {0xea5ec3b4, 0x0000002a, 0x000004fe, 0x8b1fcd62},
- {0x2dfb005d, 0x00000016, 0x00000345, 0xf54342fe},
- {0x5a214ade, 0x00000020, 0x000005b6, 0x5b95b988},
- {0xf0ab9cca, 0x00000032, 0x00000515, 0x2e1176be},
- {0x91b444f9, 0x0000002e, 0x000007f8, 0x66120546},
- {0x1b5d2ddb, 0x0000002e, 0x0000012c, 0xf256a5cc},
- {0xd824d1bb, 0x0000003a, 0x000007b5, 0x4af1dd69},
- {0x0470180c, 0x00000034, 0x000001f0, 0x56f0a04a},
- {0xffaa3a3f, 0x00000036, 0x00000299, 0x74f6b6b2},
- {0x6406cfeb, 0x00000023, 0x00000600, 0x085951fd},
- {0xb24aaa38, 0x0000003e, 0x000004a1, 0xc65387eb},
- {0x58b2ab7c, 0x00000039, 0x000002b4, 0x1ca9257b},
- {0x3db85970, 0x00000006, 0x000002b6, 0xfd196d76},
- {0x857830c5, 0x00000003, 0x00000590, 0x5ef88339},
- {0xe1fcd978, 0x0000003e, 0x000007d8, 0x2c3714d9},
- {0xb982a768, 0x00000016, 0x000006e0, 0x58576548},
- {0x1d581ce8, 0x0000001e, 0x0000058b, 0xfd7c57de},
- {0x2456719b, 0x00000025, 0x00000503, 0xd5fedd59},
- {0xfae6d8f2, 0x00000000, 0x0000055d, 0x1cc3b17b},
- {0xcba828e3, 0x00000039, 0x000002ce, 0x270eed73},
- {0x13d25952, 0x0000000a, 0x0000072d, 0x91ecbb11},
- {0x0342be3f, 0x00000015, 0x00000599, 0x05ed8d0c},
- {0xeaa344e0, 0x00000014, 0x000004d8, 0x0b09ad5b},
- {0xbbb52021, 0x0000003b, 0x00000272, 0xf8d511fb},
- {0xb66384dc, 0x0000001d, 0x000007fc, 0x5ad832cc},
- {0x616c01b6, 0x00000022, 0x000002c8, 0x1214d196},
- {0xce2bdaad, 0x00000016, 0x0000062a, 0x5747218a},
- {0x00fe84d7, 0x00000005, 0x00000205, 0xde8f14de},
- {0xbebdcb4c, 0x00000006, 0x0000055d, 0x3563b7b9},
- {0xd8b1a02a, 0x00000010, 0x00000387, 0x071475d0},
- {0x3b96cad2, 0x00000036, 0x00000347, 0x54c79d60},
- {0xc94c1ed7, 0x00000005, 0x0000038b, 0x4c53eee6},
- {0x1aad454e, 0x00000025, 0x000002b2, 0x10137a3c},
- {0xa4fec9a6, 0x00000000, 0x000006d6, 0xaa9d6c73},
- {0x1bbe71e2, 0x0000001f, 0x000002fd, 0xb63d23e7},
- {0x4201c7e4, 0x00000002, 0x000002b7, 0x7f53e9cf},
- {0x23fddc96, 0x00000003, 0x00000627, 0x13c1cd83},
- {0xd82ba25c, 0x00000016, 0x0000063e, 0x49ff5867},
- {0x786f2032, 0x0000002d, 0x0000060f, 0x8467f211},
- {0xfebe4e1f, 0x0000002a, 0x000004f2, 0x3f9683b2},
- {0x1a6e0a39, 0x00000008, 0x00000672, 0x76a3f874},
- {0x56000ab8, 0x0000000e, 0x000000e5, 0x863b702f},
- {0x4717fe0c, 0x00000000, 0x000006ec, 0xdc6c58ff},
- {0xd5d5d68e, 0x0000003c, 0x000003a3, 0x0622cc95},
- {0xc25dd6c6, 0x00000024, 0x000006c0, 0xe85605cd},
- {0xe9b11300, 0x00000023, 0x00000683, 0x31da5f06},
- {0x95cd285e, 0x00000001, 0x00000047, 0xa1f2e784},
- {0xd9245a25, 0x0000001e, 0x000003a6, 0xb07cc616},
- {0x103279db, 0x00000006, 0x0000039b, 0xbf943b6c},
- {0x1cba3172, 0x00000027, 0x000001c8, 0x2c01af1c},
- {0x8f613739, 0x0000000c, 0x000001df, 0x0fe5f56d},
- {0x1c6aa90d, 0x0000001b, 0x0000053c, 0xf8943b2d},
- {0xaabe5b93, 0x0000003d, 0x00000715, 0xe4d89272},
- {0xf15dd038, 0x00000006, 0x000006db, 0x7c2f6bbb},
- {0x584dd49c, 0x00000020, 0x000007bc, 0xabbf388b},
- {0x5d8c9506, 0x00000020, 0x00000470, 0x1dca1f4e},
- {0xb80d17b0, 0x00000032, 0x00000346, 0x5c170e23},
- {0xdaf0592e, 0x00000023, 0x000007b0, 0xc0e9d672},
- {0x4793cc85, 0x0000000d, 0x00000706, 0xc18bdc86},
- {0x82ebf64e, 0x00000009, 0x000007c3, 0xa874fcdd},
- {0xb18a0319, 0x00000026, 0x000007db, 0x9dc0bb48},
-};
-
-static int crc32c_test(void)
-{
- int i;
- int errors = 0;
- int bytes = 0;
- struct timeval start, stop;
- uint64_t usec;
-
- /* keep static to prevent cache warming code from
- * getting eliminated by the compiler */
- static u32 crc;
-
- /* pre-warm the cache */
- for (i = 0; i < 100; i++) {
- bytes += 2*test[i].length;
-
- crc ^= crc32c_le(test[i].crc, test_buf +
- test[i].start, test[i].length);
- }
-
- gettimeofday(&start, NULL);
- for (i = 0; i < 100; i++) {
- if (test[i].crc32c_le != crc32c_le(test[i].crc, test_buf +
- test[i].start, test[i].length))
- errors++;
- }
- gettimeofday(&stop, NULL);
-
- usec = stop.tv_usec - start.tv_usec +
- 1000000 * (stop.tv_sec - start.tv_sec);
-
- if (errors)
- printf("crc32c: %d self tests failed\n", errors);
- else {
- printf("crc32c: tests passed, %d bytes in %" PRIu64 " usec\n",
- bytes, usec);
- }
-
- return errors;
-}
+# include "crc32cselftest.h"
/*
* make sure we always return 0 for a successful test run, and non-zero for a
diff --git a/man/man8/xfs_io.8 b/man/man8/xfs_io.8
index cce4dcb9..f1099c32 100644
--- a/man/man8/xfs_io.8
+++ b/man/man8/xfs_io.8
@@ -1222,6 +1222,10 @@ If the label is longer than the filesystem will accept,
.B xfs_io
will print an error message. XFS filesystem labels can be at most 12
characters long.
+.TP
+.B crc32cselftest
+Test the internal crc32c implementation to make sure that it computes results
+correctly.
.SH SEE ALSO
.BR mkfs.xfs (8),
.BR xfsctl (3),
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2018-10-29 18:11 [PATCH] xfs_io: add crc32 self test Darrick J. Wong
2018-10-29 18:30 ` Eric Sandeen
2018-10-29 19:09 ` Darrick J. Wong
2018-10-29 19:10 ` [PATCH v2] " Darrick J. Wong
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