Initial commit: Go 1.23 release state
This commit is contained in:
Vorapol Rinsatitnon
655
src/runtime/sys_openbsd_ppc64.s
Normal file
655
src/runtime/sys_openbsd_ppc64.s
Normal file
@@ -0,0 +1,655 @@
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// Copyright 2023 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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//
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// System calls and other sys.stuff for ppc64, OpenBSD
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// System calls are implemented in libc/libpthread, this file
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// contains trampolines that convert from Go to C calling convention.
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// Some direct system call implementations currently remain.
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//
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#include "go_asm.h"
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#include "go_tls.h"
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#include "textflag.h"
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#define CLOCK_REALTIME $0
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#define CLOCK_MONOTONIC $3
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// mstart_stub is the first function executed on a new thread started by pthread_create.
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// It just does some low-level setup and then calls mstart.
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// Note: called with the C calling convention.
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TEXT runtime·mstart_stub(SB),NOSPLIT,$32
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// R3 points to the m.
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// We are already on m's g0 stack.
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// Go relies on R0 being $0.
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XOR R0, R0
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// TODO(jsing): Save callee-save registers (R14-R31, F14-F31, V20-V31).
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MOVD m_g0(R3), g
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BL runtime·save_g(SB)
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BL runtime·mstart(SB)
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// TODO(jsing): Restore callee-save registers (R14-R31, F14-F31, V20-V31).
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// Go is all done with this OS thread.
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// Tell pthread everything is ok (we never join with this thread, so
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// the value here doesn't really matter).
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MOVD $0, R3
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RET
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TEXT runtime·sigfwd(SB),NOSPLIT,$0-32
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MOVW sig+8(FP), R3
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MOVD info+16(FP), R4
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MOVD ctx+24(FP), R5
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MOVD fn+0(FP), R12
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MOVD R12, CTR
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CALL (CTR) // Alignment for ELF ABI?
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RET
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TEXT runtime·sigtramp(SB),NOSPLIT|TOPFRAME,$16
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// Go relies on R0 being $0 and we may have been executing non-Go code.
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XOR R0, R0
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// TODO(jsing): Save callee-save registers (R2, R14-R31, F14-F31).
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// in the case of signal forwarding.
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// Please refer to https://golang.org/issue/31827 .
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// If called from an external code context, g will not be set.
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BL runtime·load_g(SB)
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BL runtime·sigtrampgo<ABIInternal>(SB)
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// TODO(jsing): Restore callee-save registers.
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RET
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// These trampolines help convert from Go calling convention to C calling convention.
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// They should be called with asmcgocall.
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// A pointer to the arguments is passed in R3.
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// A single int32 result is returned in R3.
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// (For more results, make an args/results structure.)
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TEXT runtime·pthread_attr_init_trampoline(SB),NOSPLIT,$32
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MOVD 0(R3), R3 // arg 1 - attr
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CALL libc_pthread_attr_init(SB)
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RET
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TEXT runtime·pthread_attr_destroy_trampoline(SB),NOSPLIT,$32
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MOVD 0(R3), R3 // arg 1 - attr
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CALL libc_pthread_attr_destroy(SB)
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RET
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TEXT runtime·pthread_attr_getstacksize_trampoline(SB),NOSPLIT,$32
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MOVD 8(R3), R4 // arg 2 - size
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MOVD 0(R3), R3 // arg 1 - attr
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CALL libc_pthread_attr_getstacksize(SB)
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RET
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TEXT runtime·pthread_attr_setdetachstate_trampoline(SB),NOSPLIT,$32
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MOVD 8(R3), R4 // arg 2 - state
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MOVD 0(R3), R3 // arg 1 - attr
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CALL libc_pthread_attr_setdetachstate(SB)
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RET
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TEXT runtime·pthread_create_trampoline(SB),NOSPLIT,$32
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MOVD 0(R3), R4 // arg 2 - attr
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MOVD 8(R3), R5 // arg 3 - start
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MOVD 16(R3), R6 // arg 4 - arg
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MOVD R1, R15
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SUB $64, R1
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RLDCR $0, R1, $~15, R1
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MOVD R1, R3 // arg 1 - &threadid (discard)
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CALL libc_pthread_create(SB)
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MOVD R15, R1
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RET
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TEXT runtime·thrkill_trampoline(SB),NOSPLIT,$32
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MOVD 8(R3), R4 // arg 2 - signal (int64)
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MOVD $0, R5 // arg 3 - tcb
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MOVW 0(R3), R3 // arg 1 - tid
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CALL libc_thrkill(SB)
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RET
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TEXT runtime·thrsleep_trampoline(SB),NOSPLIT,$32
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MOVW 8(R3), R4 // arg 2 - clock_id
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MOVD 16(R3), R5 // arg 3 - abstime
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MOVD 24(R3), R6 // arg 4 - lock
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MOVD 32(R3), R7 // arg 5 - abort
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MOVD 0(R3), R3 // arg 1 - id
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CALL libc_thrsleep(SB)
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RET
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TEXT runtime·thrwakeup_trampoline(SB),NOSPLIT,$32
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MOVW 8(R3), R4 // arg 2 - count
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MOVD 0(R3), R3 // arg 1 - id
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CALL libc_thrwakeup(SB)
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RET
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TEXT runtime·exit_trampoline(SB),NOSPLIT,$32
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MOVW 0(R3), R3 // arg 1 - status
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CALL libc_exit(SB)
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MOVD $0, R3 // crash on failure
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MOVD R3, (R3)
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RET
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TEXT runtime·getthrid_trampoline(SB),NOSPLIT,$32
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MOVD R3, R14 // pointer to args
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CALL libc_getthrid(SB)
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MOVW R3, 0(R14) // return value
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RET
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TEXT runtime·raiseproc_trampoline(SB),NOSPLIT,$32
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MOVD R3, R14 // pointer to args
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CALL libc_getpid(SB) // arg 1 - pid
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MOVW 0(R14), R4 // arg 2 - signal
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CALL libc_kill(SB)
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RET
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TEXT runtime·sched_yield_trampoline(SB),NOSPLIT,$32
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CALL libc_sched_yield(SB)
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RET
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TEXT runtime·mmap_trampoline(SB),NOSPLIT,$32
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MOVD R3, R14 // pointer to args
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MOVD 0(R14), R3 // arg 1 - addr
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MOVD 8(R14), R4 // arg 2 - len
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MOVW 16(R14), R5 // arg 3 - prot
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MOVW 20(R14), R6 // arg 4 - flags
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MOVW 24(R14), R7 // arg 5 - fid
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MOVW 28(R14), R8 // arg 6 - offset
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CALL libc_mmap(SB)
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MOVD $0, R4
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CMP R3, $-1
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BNE noerr
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CALL libc_errno(SB)
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MOVW (R3), R4 // errno
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MOVD $0, R3
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noerr:
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MOVD R3, 32(R14)
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MOVD R4, 40(R14)
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RET
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TEXT runtime·munmap_trampoline(SB),NOSPLIT,$32
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MOVD 8(R3), R4 // arg 2 - len
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MOVD 0(R3), R3 // arg 1 - addr
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CALL libc_munmap(SB)
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CMP R3, $-1
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BNE 3(PC)
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MOVD $0, R3 // crash on failure
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MOVD R3, (R3)
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RET
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TEXT runtime·madvise_trampoline(SB),NOSPLIT,$32
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MOVD 8(R3), R4 // arg 2 - len
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MOVW 16(R3), R5 // arg 3 - advice
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MOVD 0(R3), R3 // arg 1 - addr
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CALL libc_madvise(SB)
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// ignore failure - maybe pages are locked
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RET
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TEXT runtime·open_trampoline(SB),NOSPLIT,$32
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MOVW 8(R3), R4 // arg 2 - flags
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MOVW 12(R3), R5 // arg 3 - mode
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MOVD 0(R3), R3 // arg 1 - path
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MOVD $0, R6 // varargs
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CALL libc_open(SB)
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RET
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TEXT runtime·close_trampoline(SB),NOSPLIT,$32
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MOVW 0(R3), R3 // arg 1 - fd
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CALL libc_close(SB)
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RET
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TEXT runtime·read_trampoline(SB),NOSPLIT,$32
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MOVD 8(R3), R4 // arg 2 - buf
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MOVW 16(R3), R5 // arg 3 - count
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MOVW 0(R3), R3 // arg 1 - fd (int32)
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CALL libc_read(SB)
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CMP R3, $-1
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BNE noerr
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CALL libc_errno(SB)
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MOVW (R3), R3 // errno
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NEG R3, R3 // caller expects negative errno value
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noerr:
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RET
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TEXT runtime·write_trampoline(SB),NOSPLIT,$32
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MOVD 8(R3), R4 // arg 2 - buf
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MOVW 16(R3), R5 // arg 3 - count
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MOVD 0(R3), R3 // arg 1 - fd (uintptr)
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CALL libc_write(SB)
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CMP R3, $-1
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BNE noerr
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CALL libc_errno(SB)
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MOVW (R3), R3 // errno
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NEG R3, R3 // caller expects negative errno value
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noerr:
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RET
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TEXT runtime·pipe2_trampoline(SB),NOSPLIT,$32
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MOVW 8(R3), R4 // arg 2 - flags
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MOVD 0(R3), R3 // arg 1 - filedes
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CALL libc_pipe2(SB)
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CMP R3, $-1
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BNE noerr
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CALL libc_errno(SB)
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MOVW (R3), R3 // errno
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NEG R3, R3 // caller expects negative errno value
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||||
noerr:
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RET
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TEXT runtime·setitimer_trampoline(SB),NOSPLIT,$32
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MOVD 8(R3), R4 // arg 2 - new
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MOVD 16(R3), R5 // arg 3 - old
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MOVW 0(R3), R3 // arg 1 - which
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CALL libc_setitimer(SB)
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RET
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TEXT runtime·usleep_trampoline(SB),NOSPLIT,$32
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MOVW 0(R3), R3 // arg 1 - usec
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||||
CALL libc_usleep(SB)
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RET
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TEXT runtime·sysctl_trampoline(SB),NOSPLIT,$32
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MOVW 8(R3), R4 // arg 2 - miblen
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MOVD 16(R3), R5 // arg 3 - out
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||||
MOVD 24(R3), R6 // arg 4 - size
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||||
MOVD 32(R3), R7 // arg 5 - dst
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||||
MOVD 40(R3), R8 // arg 6 - ndst
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||||
MOVD 0(R3), R3 // arg 1 - mib
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||||
CALL libc_sysctl(SB)
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RET
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TEXT runtime·kqueue_trampoline(SB),NOSPLIT,$32
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||||
CALL libc_kqueue(SB)
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||||
RET
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||||
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||||
TEXT runtime·kevent_trampoline(SB),NOSPLIT,$32
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||||
MOVD 8(R3), R4 // arg 2 - keventt
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MOVW 16(R3), R5 // arg 3 - nch
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MOVD 24(R3), R6 // arg 4 - ev
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MOVW 32(R3), R7 // arg 5 - nev
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MOVD 40(R3), R8 // arg 6 - ts
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MOVW 0(R3), R3 // arg 1 - kq
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CALL libc_kevent(SB)
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CMP R3, $-1
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BNE noerr
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CALL libc_errno(SB)
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MOVW (R3), R3 // errno
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||||
NEG R3, R3 // caller expects negative errno value
|
||||
noerr:
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RET
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||||
TEXT runtime·clock_gettime_trampoline(SB),NOSPLIT,$32
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||||
MOVD 8(R3), R4 // arg 2 - tp
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||||
MOVW 0(R3), R3 // arg 1 - clock_id
|
||||
CALL libc_clock_gettime(SB)
|
||||
CMP R3, $-1
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||||
BNE noerr
|
||||
CALL libc_errno(SB)
|
||||
MOVW (R3), R3 // errno
|
||||
NEG R3, R3 // caller expects negative errno value
|
||||
noerr:
|
||||
RET
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||||
|
||||
TEXT runtime·fcntl_trampoline(SB),NOSPLIT,$32
|
||||
MOVD R3, R14 // pointer to args
|
||||
MOVW 0(R14), R3 // arg 1 - fd
|
||||
MOVW 4(R14), R4 // arg 2 - cmd
|
||||
MOVW 8(R14), R5 // arg 3 - arg
|
||||
MOVD $0, R6 // vararg
|
||||
CALL libc_fcntl(SB)
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||||
MOVD $0, R4
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||||
CMP R3, $-1
|
||||
BNE noerr
|
||||
CALL libc_errno(SB)
|
||||
MOVW (R3), R4 // errno
|
||||
MOVW $-1, R3
|
||||
noerr:
|
||||
MOVW R3, 12(R14)
|
||||
MOVW R4, 16(R14)
|
||||
RET
|
||||
|
||||
TEXT runtime·sigaction_trampoline(SB),NOSPLIT,$32
|
||||
MOVD 8(R3), R4 // arg 2 - new
|
||||
MOVD 16(R3), R5 // arg 3 - old
|
||||
MOVW 0(R3), R3 // arg 1 - sig
|
||||
CALL libc_sigaction(SB)
|
||||
CMP R3, $-1
|
||||
BNE 3(PC)
|
||||
MOVD $0, R3 // crash on syscall failure
|
||||
MOVD R3, (R3)
|
||||
RET
|
||||
|
||||
TEXT runtime·sigprocmask_trampoline(SB),NOSPLIT,$32
|
||||
MOVD 8(R3), R4 // arg 2 - new
|
||||
MOVD 16(R3), R5 // arg 3 - old
|
||||
MOVW 0(R3), R3 // arg 1 - how
|
||||
CALL libc_pthread_sigmask(SB)
|
||||
CMP R3, $-1
|
||||
BNE 3(PC)
|
||||
MOVD $0, R3 // crash on syscall failure
|
||||
MOVD R3, (R3)
|
||||
RET
|
||||
|
||||
TEXT runtime·sigaltstack_trampoline(SB),NOSPLIT,$32
|
||||
MOVD 8(R3), R4 // arg 2 - old
|
||||
MOVD 0(R3), R3 // arg 1 - new
|
||||
CALL libc_sigaltstack(SB)
|
||||
CMP R3, $-1
|
||||
BNE 3(PC)
|
||||
MOVD $0, R3 // crash on syscall failure
|
||||
MOVD R3, (R3)
|
||||
RET
|
||||
|
||||
TEXT runtime·issetugid_trampoline(SB),NOSPLIT,$32
|
||||
MOVD R3, R14 // pointer to args
|
||||
CALL libc_getthrid(SB)
|
||||
MOVW R3, 0(R14) // return value
|
||||
RET
|
||||
|
||||
// syscall calls a function in libc on behalf of the syscall package.
|
||||
// syscall takes a pointer to a struct like:
|
||||
// struct {
|
||||
// fn uintptr
|
||||
// a1 uintptr
|
||||
// a2 uintptr
|
||||
// a3 uintptr
|
||||
// r1 uintptr
|
||||
// r2 uintptr
|
||||
// err uintptr
|
||||
// }
|
||||
// syscall must be called on the g0 stack with the
|
||||
// C calling convention (use libcCall).
|
||||
//
|
||||
// syscall expects a 32-bit result and tests for 32-bit -1
|
||||
// to decide there was an error.
|
||||
TEXT runtime·syscall(SB),NOSPLIT,$32
|
||||
MOVD R3, R14 // pointer to args
|
||||
|
||||
MOVD (0*8)(R14), R12 // fn
|
||||
MOVD (1*8)(R14), R3 // a1
|
||||
MOVD (2*8)(R14), R4 // a2
|
||||
MOVD (3*8)(R14), R5 // a3
|
||||
MOVD $0, R6 // vararg
|
||||
|
||||
MOVD R12, CTR
|
||||
CALL (CTR)
|
||||
|
||||
MOVD R3, (4*8)(R14) // r1
|
||||
MOVD R4, (5*8)(R14) // r2
|
||||
|
||||
// Standard libc functions return -1 on error
|
||||
// and set errno.
|
||||
CMPW R3, $-1
|
||||
BNE ok
|
||||
|
||||
// Get error code from libc.
|
||||
CALL libc_errno(SB)
|
||||
MOVW (R3), R3
|
||||
MOVD R3, (6*8)(R14) // err
|
||||
|
||||
ok:
|
||||
RET
|
||||
|
||||
// syscallX calls a function in libc on behalf of the syscall package.
|
||||
// syscallX takes a pointer to a struct like:
|
||||
// struct {
|
||||
// fn uintptr
|
||||
// a1 uintptr
|
||||
// a2 uintptr
|
||||
// a3 uintptr
|
||||
// r1 uintptr
|
||||
// r2 uintptr
|
||||
// err uintptr
|
||||
// }
|
||||
// syscallX must be called on the g0 stack with the
|
||||
// C calling convention (use libcCall).
|
||||
//
|
||||
// syscallX is like syscall but expects a 64-bit result
|
||||
// and tests for 64-bit -1 to decide there was an error.
|
||||
TEXT runtime·syscallX(SB),NOSPLIT,$32
|
||||
MOVD R3, R14 // pointer to args
|
||||
|
||||
MOVD (0*8)(R14), R12 // fn
|
||||
MOVD (1*8)(R14), R3 // a1
|
||||
MOVD (2*8)(R14), R4 // a2
|
||||
MOVD (3*8)(R14), R5 // a3
|
||||
MOVD $0, R6 // vararg
|
||||
|
||||
MOVD R12, CTR
|
||||
CALL (CTR)
|
||||
|
||||
MOVD R3, (4*8)(R14) // r1
|
||||
MOVD R4, (5*8)(R14) // r2
|
||||
|
||||
// Standard libc functions return -1 on error
|
||||
// and set errno.
|
||||
CMP R3, $-1
|
||||
BNE ok
|
||||
|
||||
// Get error code from libc.
|
||||
CALL libc_errno(SB)
|
||||
MOVW (R3), R3
|
||||
MOVD R3, (6*8)(R14) // err
|
||||
|
||||
ok:
|
||||
RET
|
||||
|
||||
// syscall6 calls a function in libc on behalf of the syscall package.
|
||||
// syscall6 takes a pointer to a struct like:
|
||||
// struct {
|
||||
// fn uintptr
|
||||
// a1 uintptr
|
||||
// a2 uintptr
|
||||
// a3 uintptr
|
||||
// a4 uintptr
|
||||
// a5 uintptr
|
||||
// a6 uintptr
|
||||
// r1 uintptr
|
||||
// r2 uintptr
|
||||
// err uintptr
|
||||
// }
|
||||
// syscall6 must be called on the g0 stack with the
|
||||
// C calling convention (use libcCall).
|
||||
//
|
||||
// syscall6 expects a 32-bit result and tests for 32-bit -1
|
||||
// to decide there was an error.
|
||||
TEXT runtime·syscall6(SB),NOSPLIT,$32
|
||||
MOVD R3, R14 // pointer to args
|
||||
|
||||
MOVD (0*8)(R14), R12 // fn
|
||||
MOVD (1*8)(R14), R3 // a1
|
||||
MOVD (2*8)(R14), R4 // a2
|
||||
MOVD (3*8)(R14), R5 // a3
|
||||
MOVD (4*8)(R14), R6 // a4
|
||||
MOVD (5*8)(R14), R7 // a5
|
||||
MOVD (6*8)(R14), R8 // a6
|
||||
MOVD $0, R9 // vararg
|
||||
|
||||
MOVD R12, CTR
|
||||
CALL (CTR)
|
||||
|
||||
MOVD R3, (7*8)(R14) // r1
|
||||
MOVD R4, (8*8)(R14) // r2
|
||||
|
||||
// Standard libc functions return -1 on error
|
||||
// and set errno.
|
||||
CMPW R3, $-1
|
||||
BNE ok
|
||||
|
||||
// Get error code from libc.
|
||||
CALL libc_errno(SB)
|
||||
MOVW (R3), R3
|
||||
MOVD R3, (9*8)(R14) // err
|
||||
|
||||
ok:
|
||||
RET
|
||||
|
||||
// syscall6X calls a function in libc on behalf of the syscall package.
|
||||
// syscall6X takes a pointer to a struct like:
|
||||
// struct {
|
||||
// fn uintptr
|
||||
// a1 uintptr
|
||||
// a2 uintptr
|
||||
// a3 uintptr
|
||||
// a4 uintptr
|
||||
// a5 uintptr
|
||||
// a6 uintptr
|
||||
// r1 uintptr
|
||||
// r2 uintptr
|
||||
// err uintptr
|
||||
// }
|
||||
// syscall6X must be called on the g0 stack with the
|
||||
// C calling convention (use libcCall).
|
||||
//
|
||||
// syscall6X is like syscall6 but expects a 64-bit result
|
||||
// and tests for 64-bit -1 to decide there was an error.
|
||||
TEXT runtime·syscall6X(SB),NOSPLIT,$32
|
||||
MOVD R3, R14 // pointer to args
|
||||
|
||||
MOVD (0*8)(R14), R12 // fn
|
||||
MOVD (1*8)(R14), R3 // a1
|
||||
MOVD (2*8)(R14), R4 // a2
|
||||
MOVD (3*8)(R14), R5 // a3
|
||||
MOVD (4*8)(R14), R6 // a4
|
||||
MOVD (5*8)(R14), R7 // a5
|
||||
MOVD (6*8)(R14), R8 // a6
|
||||
MOVD $0, R9 // vararg
|
||||
|
||||
MOVD R12, CTR
|
||||
CALL (CTR)
|
||||
|
||||
MOVD R3, (7*8)(R14) // r1
|
||||
MOVD R4, (8*8)(R14) // r2
|
||||
|
||||
// Standard libc functions return -1 on error
|
||||
// and set errno.
|
||||
CMP R3, $-1
|
||||
BNE ok
|
||||
|
||||
// Get error code from libc.
|
||||
CALL libc_errno(SB)
|
||||
MOVW (R3), R3
|
||||
MOVD R3, (9*8)(R14) // err
|
||||
|
||||
ok:
|
||||
RET
|
||||
|
||||
// syscall10 calls a function in libc on behalf of the syscall package.
|
||||
// syscall10 takes a pointer to a struct like:
|
||||
// struct {
|
||||
// fn uintptr
|
||||
// a1 uintptr
|
||||
// a2 uintptr
|
||||
// a3 uintptr
|
||||
// a4 uintptr
|
||||
// a5 uintptr
|
||||
// a6 uintptr
|
||||
// a7 uintptr
|
||||
// a8 uintptr
|
||||
// a9 uintptr
|
||||
// a10 uintptr
|
||||
// r1 uintptr
|
||||
// r2 uintptr
|
||||
// err uintptr
|
||||
// }
|
||||
// syscall10 must be called on the g0 stack with the
|
||||
// C calling convention (use libcCall). Note that this is
|
||||
// really syscall8 as a maximum of eight parameters can be
|
||||
// passed via registers (and current usage does not exceed
|
||||
// this).
|
||||
TEXT runtime·syscall10(SB),NOSPLIT,$32
|
||||
MOVD R3, R14 // pointer to args
|
||||
|
||||
MOVD (0*8)(R14), R12 // fn
|
||||
MOVD (1*8)(R14), R3 // a1
|
||||
MOVD (2*8)(R14), R4 // a2
|
||||
MOVD (3*8)(R14), R5 // a3
|
||||
MOVD (4*8)(R14), R6 // a4
|
||||
MOVD (5*8)(R14), R7 // a5
|
||||
MOVD (6*8)(R14), R8 // a6
|
||||
MOVD (7*8)(R14), R9 // a7
|
||||
MOVD (8*8)(R14), R10 // a8
|
||||
|
||||
MOVD R12, CTR
|
||||
CALL (CTR)
|
||||
|
||||
MOVD R3, (11*8)(R14) // r1
|
||||
MOVD R4, (12*8)(R14) // r2
|
||||
|
||||
// Standard libc functions return -1 on error
|
||||
// and set errno.
|
||||
CMPW R3, $-1
|
||||
BNE ok
|
||||
|
||||
// Get error code from libc.
|
||||
CALL libc_errno(SB)
|
||||
MOVW (R3), R3
|
||||
MOVD R3, (13*8)(R14) // err
|
||||
|
||||
ok:
|
||||
RET
|
||||
|
||||
// syscall10X calls a function in libc on behalf of the syscall package.
|
||||
// syscall10X takes a pointer to a struct like:
|
||||
// struct {
|
||||
// fn uintptr
|
||||
// a1 uintptr
|
||||
// a2 uintptr
|
||||
// a3 uintptr
|
||||
// a4 uintptr
|
||||
// a5 uintptr
|
||||
// a6 uintptr
|
||||
// a7 uintptr
|
||||
// a8 uintptr
|
||||
// a9 uintptr
|
||||
// a10 uintptr
|
||||
// r1 uintptr
|
||||
// r2 uintptr
|
||||
// err uintptr
|
||||
// }
|
||||
// syscall10X must be called on the g0 stack with the
|
||||
// C calling convention (use libcCall). Note that this is
|
||||
// really syscall8X as a maximum of eight parameters can be
|
||||
// passed via registers (and current usage does not exceed
|
||||
// this).
|
||||
//
|
||||
// syscall10X is like syscall10 but expects a 64-bit result
|
||||
// and tests for 64-bit -1 to decide there was an error.
|
||||
TEXT runtime·syscall10X(SB),NOSPLIT,$32
|
||||
MOVD R3, R14 // pointer to args
|
||||
|
||||
MOVD (0*8)(R14), R12 // fn
|
||||
MOVD (1*8)(R14), R3 // a1
|
||||
MOVD (2*8)(R14), R4 // a2
|
||||
MOVD (3*8)(R14), R5 // a3
|
||||
MOVD (4*8)(R14), R6 // a4
|
||||
MOVD (5*8)(R14), R7 // a5
|
||||
MOVD (6*8)(R14), R8 // a6
|
||||
MOVD (7*8)(R14), R9 // a7
|
||||
MOVD (8*8)(R14), R10 // a8
|
||||
|
||||
MOVD R12, CTR
|
||||
CALL (CTR)
|
||||
|
||||
MOVD R3, (11*8)(R14) // r1
|
||||
MOVD R4, (12*8)(R14) // r2
|
||||
|
||||
// Standard libc functions return -1 on error
|
||||
// and set errno.
|
||||
CMP R3, $-1
|
||||
BNE ok
|
||||
|
||||
// Get error code from libc.
|
||||
CALL libc_errno(SB)
|
||||
MOVW (R3), R3
|
||||
MOVD R3, (13*8)(R14) // err
|
||||
|
||||
ok:
|
||||
RET
|
||||
Reference in New Issue
Block a user