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unix: don't zero out extra registers on riscv64 syscalls

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Follow the implementation in package syscall, see CL 204659.

Change-Id: Ib97f86958cbdb0135b7980faf23729543c68d42a
Reviewed-on: https://go-review.googlesource.com/c/sys/+/213397
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Joel Sing <joel@sing.id.au>
This commit is contained in:
Tobias Klauser
2020-01-05 23:22:07 +01:00
committed by Tobias Klauser
parent a1369afcda
commit 5f8ca72cd6
1 changed files with 0 additions and 7 deletions
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7
unix/asm_linux_riscv64.s
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@@ -23,10 +23,6 @@ TEXT ·SyscallNoError(SB),NOSPLIT,$0-48
MOV a1+8(FP), A0
MOV a2+16(FP), A1
MOV a3+24(FP), A2
MOV $0, A3
MOV $0, A4
MOV $0, A5
MOV $0, A6
MOV trap+0(FP), A7 // syscall entry
ECALL
MOV A0, r1+32(FP) // r1
@@ -44,9 +40,6 @@ TEXT ·RawSyscallNoError(SB),NOSPLIT,$0-48
MOV a1+8(FP), A0
MOV a2+16(FP), A1
MOV a3+24(FP), A2
MOV ZERO, A3
MOV ZERO, A4
MOV ZERO, A5
MOV trap+0(FP), A7 // syscall entry
ECALL
MOV A0, r1+32(FP)