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| author | Alex Richardson <arichardson@FreeBSD.org> | 2021-02-02 09:52:52 +0000 |
|---|---|---|
| committer | Alex Richardson <arichardson@FreeBSD.org> | 2021-04-22 09:41:09 +0000 |
| commit | b20f358a2de4fa442e8650f78187ad19764c7db8 (patch) | |
| tree | 96ba938c3c4be5dce75cf7c8486386c5bf63859b /sys/libkern | |
| parent | 76713be0f593d7b6cea0696024b804888a61547a (diff) | |
| download | src-b20f358a2de4fa442e8650f78187ad19764c7db8.tar.gz src-b20f358a2de4fa442e8650f78187ad19764c7db8.zip | |
tests/sys/kern/crc32: Check for SSE4.2 before using it
This avoids a SIGILL when running these tests on QEMU (which
defaults to a basic amd64 CPU without SSE4.2).
This commit also tests the table-based implementations in addition to
testing the hw-accelerated crc32 versions.
Reviewed By: cem, kib, markj
Differential Revision: https://reviews.freebsd.org/D28395
(cherry picked from commit 83c20b8a2da04937cf4af127366b3dc92c855784)
Diffstat (limited to 'sys/libkern')
| -rw-r--r-- | sys/libkern/gsb_crc32.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/sys/libkern/gsb_crc32.c b/sys/libkern/gsb_crc32.c index b2f7421c20eb..170ceb3aa710 100644 --- a/sys/libkern/gsb_crc32.c +++ b/sys/libkern/gsb_crc32.c @@ -46,11 +46,11 @@ __FBSDID("$FreeBSD$"); #include <sys/param.h> +#include <sys/gsb_crc32.h> #ifdef _KERNEL #include <sys/libkern.h> #include <sys/systm.h> -#include <sys/gsb_crc32.h> #if defined(__amd64__) || defined(__i386__) #include <machine/md_var.h> @@ -216,7 +216,10 @@ static const uint32_t crc32Table[256] = { 0xBE2DA0A5L, 0x4C4623A6L, 0x5F16D052L, 0xAD7D5351L }; -static uint32_t +#ifndef TESTING +static +#endif +uint32_t singletable_crc32c(uint32_t crc, const void *buf, size_t size) { const uint8_t *p = buf; @@ -730,10 +733,13 @@ crc32c_sb8_64_bit(uint32_t crc, return crc; } -static uint32_t +#ifndef TESTING +static +#endif +uint32_t multitable_crc32c(uint32_t crc32c, - const unsigned char *buffer, - unsigned int length) + const void *buffer, + size_t length) { uint32_t to_even_word; |