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syscall: use name+(NN)FP on linux/arm
Generated with a modified version of go vet and tested on android. Change-Id: I1ff20135c5ab9de5a6dbf76ea2991167271ee70d Reviewed-on: https://go-review.googlesource.com/2815 Reviewed-by: Ian Lance Taylor <iant@golang.org>
This commit is contained in:
David Crawshaw
parent
2a87a8a5ec
commit
e10e913d08
@ -15,10 +15,10 @@
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TEXT ·Syscall(SB),NOSPLIT,$0-28
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BL runtime·entersyscall(SB)
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MOVW 4(SP), R7
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MOVW 8(SP), R0
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MOVW 12(SP), R1
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MOVW 16(SP), R2
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MOVW trap+0(FP), R7
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MOVW a1+4(FP), R0
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MOVW a2+8(FP), R1
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MOVW a3+12(FP), R2
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MOVW $0, R3
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MOVW $0, R4
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MOVW $0, R5
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@ -27,18 +27,18 @@ TEXT ·Syscall(SB),NOSPLIT,$0-28
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CMP R1, R0
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BLS ok
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MOVW $-1, R1
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MOVW R1, 20(SP) // r1
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MOVW R1, r1+16(FP)
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MOVW $0, R2
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MOVW R2, 24(SP) // r2
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MOVW R2, r2+20(FP)
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RSB $0, R0, R0
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MOVW R0, 28(SP) // errno
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MOVW R0, err+24(FP)
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BL runtime·exitsyscall(SB)
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RET
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ok:
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MOVW R0, 20(SP) // r1
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MOVW R0, r1+16(FP)
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MOVW $0, R0
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MOVW R0, 24(SP) // r2
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MOVW R0, 28(SP) // errno
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MOVW R0, r2+20(FP)
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MOVW R0, err+24(FP)
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BL runtime·exitsyscall(SB)
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RET
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@ -46,59 +46,59 @@ ok:
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// Actually Syscall5 but the rest of the code expects it to be named Syscall6.
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TEXT ·Syscall6(SB),NOSPLIT,$0-40
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BL runtime·entersyscall(SB)
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MOVW 4(SP), R7 // syscall entry
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MOVW 8(SP), R0
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MOVW 12(SP), R1
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MOVW 16(SP), R2
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MOVW 20(SP), R3
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MOVW 24(SP), R4
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MOVW 28(SP), R5
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MOVW trap+0(FP), R7 // syscall entry
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MOVW a1+4(FP), R0
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MOVW a2+8(FP), R1
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MOVW a3+12(FP), R2
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MOVW a4+16(FP), R3
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MOVW a5+20(FP), R4
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MOVW a6+24(FP), R5
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SWI $0
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MOVW $0xfffff001, R6
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CMP R6, R0
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BLS ok6
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MOVW $-1, R1
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MOVW R1, 32(SP) // r1
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MOVW R1, r1+28(FP)
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MOVW $0, R2
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MOVW R2, 36(SP) // r2
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MOVW R2, r2+32(FP)
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RSB $0, R0, R0
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MOVW R0, 40(SP) // errno
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MOVW R0, err+36(FP)
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BL runtime·exitsyscall(SB)
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RET
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ok6:
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MOVW R0, 32(SP) // r1
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MOVW R1, 36(SP) // r2
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MOVW R0, r1+28(FP)
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MOVW R1, r2+32(FP)
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MOVW $0, R0
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MOVW R0, 40(SP) // errno
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MOVW R0, err+36(FP)
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BL runtime·exitsyscall(SB)
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RET
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// func RawSyscall6(trap uintptr, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, err uintptr);
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// Actually RawSyscall5 but the rest of the code expects it to be named RawSyscall6.
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TEXT ·RawSyscall6(SB),NOSPLIT,$0-40
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MOVW 4(SP), R7 // syscall entry
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MOVW 8(SP), R0
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MOVW 12(SP), R1
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MOVW 16(SP), R2
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MOVW 20(SP), R3
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MOVW 24(SP), R4
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MOVW 28(SP), R5
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MOVW trap+0(FP), R7 // syscall entry
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MOVW a1+4(FP), R0
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MOVW a2+8(FP), R1
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MOVW a3+12(FP), R2
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MOVW a4+16(FP), R3
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MOVW a5+20(FP), R4
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MOVW a6+24(FP), R5
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SWI $0
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MOVW $0xfffff001, R6
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CMP R6, R0
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BLS ok2
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MOVW $-1, R1
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MOVW R1, 32(SP) // r1
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MOVW R1, r1+28(FP)
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MOVW $0, R2
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MOVW R2, 36(SP) // r2
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MOVW R2, r2+32(FP)
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RSB $0, R0, R0
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MOVW R0, 40(SP) // errno
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MOVW R0, err+36(FP)
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RET
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ok2:
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MOVW R0, 32(SP) // r1
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MOVW R1, 36(SP) // r2
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MOVW R0, r1+28(FP)
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MOVW R1, r2+32(FP)
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MOVW $0, R0
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MOVW R0, 40(SP) // errno
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MOVW R0, err+36(FP)
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RET
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#define SYS__LLSEEK 140 /* from zsysnum_linux_arm.go */
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@ -110,50 +110,50 @@ ok2:
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TEXT ·seek(SB),NOSPLIT,$0-28
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BL runtime·entersyscall(SB)
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MOVW $SYS__LLSEEK, R7 // syscall entry
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MOVW 4(SP), R0 // fd
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MOVW 12(SP), R1 // offset-high
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MOVW 8(SP), R2 // offset-low
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MOVW $20(SP), R3
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MOVW 16(SP), R4 // whence
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MOVW fd+0(FP), R0
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MOVW offset_hi+8(FP), R1
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MOVW offset_lo+4(FP), R2
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MOVW $newoffset_lo+16(FP), R3
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MOVW whence+12(FP), R4
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SWI $0
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MOVW $0xfffff001, R6
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CMP R6, R0
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BLS okseek
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MOVW $0, R1
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MOVW R1, 20(SP)
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MOVW R1, 24(SP)
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MOVW R1, newoffset_lo+16(FP)
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MOVW R1, newoffset_hi+20(FP)
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RSB $0, R0, R0
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MOVW R0, 28(SP) // errno
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MOVW R0, err+24(FP)
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BL runtime·exitsyscall(SB)
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RET
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okseek:
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// system call filled in newoffset already
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MOVW $0, R0
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MOVW R0, 28(SP) // errno
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MOVW R0, err+24(FP)
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BL runtime·exitsyscall(SB)
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RET
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// func RawSyscall(trap uintptr, a1, a2, a3 uintptr) (r1, r2, err uintptr);
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TEXT ·RawSyscall(SB),NOSPLIT,$0-28
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MOVW 4(SP), R7 // syscall entry
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MOVW 8(SP), R0
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MOVW 12(SP), R1
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MOVW 16(SP), R2
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MOVW trap+0(FP), R7 // syscall entry
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MOVW a1+4(FP), R0
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MOVW a2+8(FP), R1
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MOVW a3+12(FP), R2
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SWI $0
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MOVW $0xfffff001, R1
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CMP R1, R0
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BLS ok1
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MOVW $-1, R1
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MOVW R1, 20(SP) // r1
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MOVW R1, r1+16(FP)
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MOVW $0, R2
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MOVW R2, 24(SP) // r2
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MOVW R2, r2+20(FP)
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RSB $0, R0, R0
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MOVW R0, 28(SP) // errno
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MOVW R0, err+24(FP)
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RET
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ok1:
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MOVW R0, 20(SP) // r1
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MOVW R0, r1+16(FP)
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MOVW $0, R0
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MOVW R0, 24(SP) // r2
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MOVW R0, 28(SP) // errno
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MOVW R0, r2+20(FP)
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MOVW R0, err+24(FP)
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RET
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