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powerpc64: Support ELFv2 asm on Big Endian

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FreeBSD/powerpc64 is all ELFv2 since FreeBSD 13, even big endian.  The
existing sha256 and sha512 asm code assumes that BE is all ELFv1, and LE
is ELFv2.  Minor changes to add ELFv2 in the BE side gets this working
correctly on FreeBSD with latest OpenZFS import.

Reviewed-by: Tino Reichardt <milky-zfs@mcmilk.de>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by:	Justin Hibbits <chmeeedalf@gmail.com>
Closes #14779
This commit is contained in:
Justin Hibbits
2023-04-27 15:49:21 -04:00
committed by GitHub
parent 2fd1c30423
commit 5a83f761c7
6 changed files with 63 additions and 2 deletions
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module/icp/asm-ppc64/sha2/sha512-ppc.S
+15
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@@ -21,6 +21,7 @@
#if (defined(__PPC64__) && defined(__BIG_ENDIAN__))
#if (!defined(_CALL_ELF) || _CALL_ELF == 1)
.text
.globl zfs_sha512_ppc
@@ -33,6 +34,16 @@ zfs_sha512_ppc:
.previous
.align 6
.zfs_sha512_ppc:
#else
.abiversion 2
.text
.globl zfs_sha512_ppc
.type zfs_sha512_ppc,@function
.align 6
zfs_sha512_ppc:
.localentry zfs_sha512_ppc,0
#endif
stdu 1,-384(1)
mflr 0
sldi 5,5,7
@@ -1350,8 +1361,12 @@ zfs_sha512_ppc:
blr
.long 0
.byte 0,12,0x14,0,0,0,0,0
#if (!defined(_CALL_ELF) || _CALL_ELF == 1)
.size .zfs_sha512_ppc,.-.zfs_sha512_ppc
.size zfs_sha512_ppc,.-.zfs_sha512_ppc
#else
.size zfs_sha512_ppc,.-zfs_sha512_ppc
#endif
.align 6
.LPICmeup:
mflr 0