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[BTRFS] Fix amd64 build

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CORE-16679
This commit is contained in:
Victor Perevertkin 2020-04-23 07:49:35 +03:00
parent 3ba423996c
commit 3c4a68ec46
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GPG key ID: C750B7222E9C7830
1 changed files with 7 additions and 6 deletions
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13
drivers/filesystems/btrfs/crc32c-amd64.S
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@ -17,15 +17,15 @@
#include <asm.inc> #include <asm.inc>
EXTERN _crctable:QWORD EXTERN crctable:QWORD
.code64 .code64
/* uint32_t __stdcall calc_crc32c_sw(uint32_t seed, uint8_t* msg, uint32_t msglen); */ /* uint32_t __stdcall calc_crc32c_sw(uint32_t seed, uint8_t* msg, uint32_t msglen); */
PUBLIC _calc_crc32c_sw@12 PUBLIC calc_crc32c_sw
_calc_crc32c_sw@12: calc_crc32c_sw:
/* rax = crc / seed /* rax = crc / seed
* rdx = buf * rdx = buf
@ -45,7 +45,8 @@ mov r10b, byte ptr [rdx]
xor al, r10b xor al, r10b
and rax, 255 and rax, 255
shl rax, 2 shl rax, 2
mov rax, dword ptr [_crctable + rax] mov r10, offset crctable
mov eax, dword ptr [r10 + rax]
xor rax, rcx xor rax, rcx
inc rdx inc rdx
@ -60,8 +61,8 @@ ret
/* uint32_t __stdcall calc_crc32c_hw(uint32_t seed, uint8_t* msg, uint32_t msglen); */ /* uint32_t __stdcall calc_crc32c_hw(uint32_t seed, uint8_t* msg, uint32_t msglen); */
PUBLIC _calc_crc32c_hw@12: PUBLIC calc_crc32c_hw
_calc_crc32c_hw@12: calc_crc32c_hw:
/* rax = crc / seed /* rax = crc / seed
* rdx = buf * rdx = buf