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-rw-r--r--src/runtime/sys_netbsd_amd64.s466
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diff --git a/src/runtime/sys_netbsd_amd64.s b/src/runtime/sys_netbsd_amd64.s
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+++ b/src/runtime/sys_netbsd_amd64.s
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+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+//
+// System calls and other sys.stuff for AMD64, NetBSD
+// /usr/src/sys/kern/syscalls.master for syscall numbers.
+//
+
+#include "go_asm.h"
+#include "go_tls.h"
+#include "textflag.h"
+#include "cgo/abi_amd64.h"
+
+#define CLOCK_REALTIME 0
+#define CLOCK_MONOTONIC 3
+#define FD_CLOEXEC 1
+#define F_SETFD 2
+
+#define SYS_exit 1
+#define SYS_read 3
+#define SYS_write 4
+#define SYS_open 5
+#define SYS_close 6
+#define SYS_getpid 20
+#define SYS_kill 37
+#define SYS_munmap 73
+#define SYS_madvise 75
+#define SYS_fcntl 92
+#define SYS_mmap 197
+#define SYS___sysctl 202
+#define SYS___sigaltstack14 281
+#define SYS___sigprocmask14 293
+#define SYS_getcontext 307
+#define SYS_setcontext 308
+#define SYS__lwp_create 309
+#define SYS__lwp_exit 310
+#define SYS__lwp_self 311
+#define SYS__lwp_setprivate 317
+#define SYS__lwp_kill 318
+#define SYS__lwp_unpark 321
+#define SYS___sigaction_sigtramp 340
+#define SYS_kqueue 344
+#define SYS_sched_yield 350
+#define SYS___setitimer50 425
+#define SYS___clock_gettime50 427
+#define SYS___nanosleep50 430
+#define SYS___kevent50 435
+#define SYS____lwp_park60 478
+
+// int32 lwp_create(void *context, uintptr flags, void *lwpid)
+TEXT runtime·lwp_create(SB),NOSPLIT,$0
+ MOVQ ctxt+0(FP), DI
+ MOVQ flags+8(FP), SI
+ MOVQ lwpid+16(FP), DX
+ MOVL $SYS__lwp_create, AX
+ SYSCALL
+ JCC 2(PC)
+ NEGQ AX
+ MOVL AX, ret+24(FP)
+ RET
+
+TEXT runtime·lwp_tramp(SB),NOSPLIT,$0
+
+ // Set FS to point at m->tls.
+ LEAQ m_tls(R8), DI
+ CALL runtime·settls(SB)
+
+ // Set up new stack.
+ get_tls(CX)
+ MOVQ R8, g_m(R9)
+ MOVQ R9, g(CX)
+ CALL runtime·stackcheck(SB)
+
+ // Call fn. This is an ABI0 PC.
+ CALL R12
+
+ // It shouldn't return. If it does, exit.
+ MOVL $SYS__lwp_exit, AX
+ SYSCALL
+ JMP -3(PC) // keep exiting
+
+TEXT ·netbsdMstart(SB),NOSPLIT|TOPFRAME,$0
+ CALL ·netbsdMstart0(SB)
+ RET // not reached
+
+TEXT runtime·osyield(SB),NOSPLIT,$0
+ MOVL $SYS_sched_yield, AX
+ SYSCALL
+ RET
+
+TEXT runtime·lwp_park(SB),NOSPLIT,$0
+ MOVL clockid+0(FP), DI // arg 1 - clockid
+ MOVL flags+4(FP), SI // arg 2 - flags
+ MOVQ ts+8(FP), DX // arg 3 - ts
+ MOVL unpark+16(FP), R10 // arg 4 - unpark
+ MOVQ hint+24(FP), R8 // arg 5 - hint
+ MOVQ unparkhint+32(FP), R9 // arg 6 - unparkhint
+ MOVL $SYS____lwp_park60, AX
+ SYSCALL
+ MOVL AX, ret+40(FP)
+ RET
+
+TEXT runtime·lwp_unpark(SB),NOSPLIT,$0
+ MOVL lwp+0(FP), DI // arg 1 - lwp
+ MOVQ hint+8(FP), SI // arg 2 - hint
+ MOVL $SYS__lwp_unpark, AX
+ SYSCALL
+ MOVL AX, ret+16(FP)
+ RET
+
+TEXT runtime·lwp_self(SB),NOSPLIT,$0
+ MOVL $SYS__lwp_self, AX
+ SYSCALL
+ MOVL AX, ret+0(FP)
+ RET
+
+// Exit the entire program (like C exit)
+TEXT runtime·exit(SB),NOSPLIT,$-8
+ MOVL code+0(FP), DI // arg 1 - exit status
+ MOVL $SYS_exit, AX
+ SYSCALL
+ MOVL $0xf1, 0xf1 // crash
+ RET
+
+// func exitThread(wait *atomic.Uint32)
+TEXT runtime·exitThread(SB),NOSPLIT,$0-8
+ MOVQ wait+0(FP), AX
+ // We're done using the stack.
+ MOVL $0, (AX)
+ MOVL $SYS__lwp_exit, AX
+ SYSCALL
+ MOVL $0xf1, 0xf1 // crash
+ JMP 0(PC)
+
+TEXT runtime·open(SB),NOSPLIT,$-8
+ MOVQ name+0(FP), DI // arg 1 pathname
+ MOVL mode+8(FP), SI // arg 2 flags
+ MOVL perm+12(FP), DX // arg 3 mode
+ MOVL $SYS_open, AX
+ SYSCALL
+ JCC 2(PC)
+ MOVL $-1, AX
+ MOVL AX, ret+16(FP)
+ RET
+
+TEXT runtime·closefd(SB),NOSPLIT,$-8
+ MOVL fd+0(FP), DI // arg 1 fd
+ MOVL $SYS_close, AX
+ SYSCALL
+ JCC 2(PC)
+ MOVL $-1, AX
+ MOVL AX, ret+8(FP)
+ RET
+
+TEXT runtime·read(SB),NOSPLIT,$-8
+ MOVL fd+0(FP), DI // arg 1 fd
+ MOVQ p+8(FP), SI // arg 2 buf
+ MOVL n+16(FP), DX // arg 3 count
+ MOVL $SYS_read, AX
+ SYSCALL
+ JCC 2(PC)
+ NEGQ AX // caller expects negative errno
+ MOVL AX, ret+24(FP)
+ RET
+
+// func pipe() (r, w int32, errno int32)
+TEXT runtime·pipe(SB),NOSPLIT,$0-12
+ MOVL $42, AX
+ SYSCALL
+ JCC pipeok
+ MOVL $-1, r+0(FP)
+ MOVL $-1, w+4(FP)
+ MOVL AX, errno+8(FP)
+ RET
+pipeok:
+ MOVL AX, r+0(FP)
+ MOVL DX, w+4(FP)
+ MOVL $0, errno+8(FP)
+ RET
+
+// func pipe2(flags int32) (r, w int32, errno int32)
+TEXT runtime·pipe2(SB),NOSPLIT,$0-20
+ LEAQ r+8(FP), DI
+ MOVL flags+0(FP), SI
+ MOVL $453, AX
+ SYSCALL
+ MOVL AX, errno+16(FP)
+ RET
+
+TEXT runtime·write1(SB),NOSPLIT,$-8
+ MOVQ fd+0(FP), DI // arg 1 - fd
+ MOVQ p+8(FP), SI // arg 2 - buf
+ MOVL n+16(FP), DX // arg 3 - nbyte
+ MOVL $SYS_write, AX
+ SYSCALL
+ JCC 2(PC)
+ NEGQ AX // caller expects negative errno
+ MOVL AX, ret+24(FP)
+ RET
+
+TEXT runtime·usleep(SB),NOSPLIT,$16
+ MOVL $0, DX
+ MOVL usec+0(FP), AX
+ MOVL $1000000, CX
+ DIVL CX
+ MOVQ AX, 0(SP) // tv_sec
+ MOVL $1000, AX
+ MULL DX
+ MOVQ AX, 8(SP) // tv_nsec
+
+ MOVQ SP, DI // arg 1 - rqtp
+ MOVQ $0, SI // arg 2 - rmtp
+ MOVL $SYS___nanosleep50, AX
+ SYSCALL
+ RET
+
+TEXT runtime·lwp_kill(SB),NOSPLIT,$0-16
+ MOVL tid+0(FP), DI // arg 1 - target
+ MOVQ sig+8(FP), SI // arg 2 - signo
+ MOVL $SYS__lwp_kill, AX
+ SYSCALL
+ RET
+
+TEXT runtime·raiseproc(SB),NOSPLIT,$16
+ MOVL $SYS_getpid, AX
+ SYSCALL
+ MOVQ AX, DI // arg 1 - pid
+ MOVL sig+0(FP), SI // arg 2 - signo
+ MOVL $SYS_kill, AX
+ SYSCALL
+ RET
+
+TEXT runtime·setitimer(SB),NOSPLIT,$-8
+ MOVL mode+0(FP), DI // arg 1 - which
+ MOVQ new+8(FP), SI // arg 2 - itv
+ MOVQ old+16(FP), DX // arg 3 - oitv
+ MOVL $SYS___setitimer50, AX
+ SYSCALL
+ RET
+
+// func walltime() (sec int64, nsec int32)
+TEXT runtime·walltime(SB), NOSPLIT, $32
+ MOVQ $CLOCK_REALTIME, DI // arg 1 - clock_id
+ LEAQ 8(SP), SI // arg 2 - tp
+ MOVL $SYS___clock_gettime50, AX
+ SYSCALL
+ MOVQ 8(SP), AX // sec
+ MOVQ 16(SP), DX // nsec
+
+ // sec is in AX, nsec in DX
+ MOVQ AX, sec+0(FP)
+ MOVL DX, nsec+8(FP)
+ RET
+
+TEXT runtime·nanotime1(SB),NOSPLIT,$32
+ MOVQ $CLOCK_MONOTONIC, DI // arg 1 - clock_id
+ LEAQ 8(SP), SI // arg 2 - tp
+ MOVL $SYS___clock_gettime50, AX
+ SYSCALL
+ MOVQ 8(SP), AX // sec
+ MOVQ 16(SP), DX // nsec
+
+ // sec is in AX, nsec in DX
+ // return nsec in AX
+ IMULQ $1000000000, AX
+ ADDQ DX, AX
+ MOVQ AX, ret+0(FP)
+ RET
+
+TEXT runtime·getcontext(SB),NOSPLIT,$-8
+ MOVQ ctxt+0(FP), DI // arg 1 - context
+ MOVL $SYS_getcontext, AX
+ SYSCALL
+ JCC 2(PC)
+ MOVL $0xf1, 0xf1 // crash
+ RET
+
+TEXT runtime·sigprocmask(SB),NOSPLIT,$0
+ MOVL how+0(FP), DI // arg 1 - how
+ MOVQ new+8(FP), SI // arg 2 - set
+ MOVQ old+16(FP), DX // arg 3 - oset
+ MOVL $SYS___sigprocmask14, AX
+ SYSCALL
+ JCC 2(PC)
+ MOVL $0xf1, 0xf1 // crash
+ RET
+
+TEXT sigreturn_tramp<>(SB),NOSPLIT,$-8
+ MOVQ R15, DI // Load address of ucontext
+ MOVQ $SYS_setcontext, AX
+ SYSCALL
+ MOVQ $-1, DI // Something failed...
+ MOVL $SYS_exit, AX
+ SYSCALL
+
+TEXT runtime·sigaction(SB),NOSPLIT,$-8
+ MOVL sig+0(FP), DI // arg 1 - signum
+ MOVQ new+8(FP), SI // arg 2 - nsa
+ MOVQ old+16(FP), DX // arg 3 - osa
+ // arg 4 - tramp
+ LEAQ sigreturn_tramp<>(SB), R10
+ MOVQ $2, R8 // arg 5 - vers
+ MOVL $SYS___sigaction_sigtramp, AX
+ SYSCALL
+ JCC 2(PC)
+ MOVL $0xf1, 0xf1 // crash
+ RET
+
+TEXT runtime·sigfwd(SB),NOSPLIT,$0-32
+ MOVQ fn+0(FP), AX
+ MOVL sig+8(FP), DI
+ MOVQ info+16(FP), SI
+ MOVQ ctx+24(FP), DX
+ PUSHQ BP
+ MOVQ SP, BP
+ ANDQ $~15, SP // alignment for x86_64 ABI
+ CALL AX
+ MOVQ BP, SP
+ POPQ BP
+ RET
+
+// Called using C ABI.
+TEXT runtime·sigtramp(SB),NOSPLIT,$0
+ // Transition from C ABI to Go ABI.
+ PUSH_REGS_HOST_TO_ABI0()
+
+ // Call into the Go signal handler
+ NOP SP // disable vet stack checking
+ ADJSP $24
+ MOVQ DI, 0(SP) // sig
+ MOVQ SI, 8(SP) // info
+ MOVQ DX, 16(SP) // ctx
+ CALL ·sigtrampgo(SB)
+ ADJSP $-24
+
+ POP_REGS_HOST_TO_ABI0()
+ RET
+
+TEXT runtime·mmap(SB),NOSPLIT,$0
+ MOVQ addr+0(FP), DI // arg 1 - addr
+ MOVQ n+8(FP), SI // arg 2 - len
+ MOVL prot+16(FP), DX // arg 3 - prot
+ MOVL flags+20(FP), R10 // arg 4 - flags
+ MOVL fd+24(FP), R8 // arg 5 - fd
+ MOVL off+28(FP), R9
+ SUBQ $16, SP
+ MOVQ R9, 8(SP) // arg 7 - offset (passed on stack)
+ MOVQ $0, R9 // arg 6 - pad
+ MOVL $SYS_mmap, AX
+ SYSCALL
+ JCC ok
+ ADDQ $16, SP
+ MOVQ $0, p+32(FP)
+ MOVQ AX, err+40(FP)
+ RET
+ok:
+ ADDQ $16, SP
+ MOVQ AX, p+32(FP)
+ MOVQ $0, err+40(FP)
+ RET
+
+TEXT runtime·munmap(SB),NOSPLIT,$0
+ MOVQ addr+0(FP), DI // arg 1 - addr
+ MOVQ n+8(FP), SI // arg 2 - len
+ MOVL $SYS_munmap, AX
+ SYSCALL
+ JCC 2(PC)
+ MOVL $0xf1, 0xf1 // crash
+ RET
+
+
+TEXT runtime·madvise(SB),NOSPLIT,$0
+ MOVQ addr+0(FP), DI // arg 1 - addr
+ MOVQ n+8(FP), SI // arg 2 - len
+ MOVL flags+16(FP), DX // arg 3 - behav
+ MOVQ $SYS_madvise, AX
+ SYSCALL
+ JCC 2(PC)
+ MOVL $-1, AX
+ MOVL AX, ret+24(FP)
+ RET
+
+TEXT runtime·sigaltstack(SB),NOSPLIT,$-8
+ MOVQ new+0(FP), DI // arg 1 - nss
+ MOVQ old+8(FP), SI // arg 2 - oss
+ MOVQ $SYS___sigaltstack14, AX
+ SYSCALL
+ JCC 2(PC)
+ MOVL $0xf1, 0xf1 // crash
+ RET
+
+// set tls base to DI
+TEXT runtime·settls(SB),NOSPLIT,$8
+ // adjust for ELF: wants to use -8(FS) for g
+ ADDQ $8, DI // arg 1 - ptr
+ MOVQ $SYS__lwp_setprivate, AX
+ SYSCALL
+ JCC 2(PC)
+ MOVL $0xf1, 0xf1 // crash
+ RET
+
+TEXT runtime·sysctl(SB),NOSPLIT,$0
+ MOVQ mib+0(FP), DI // arg 1 - name
+ MOVL miblen+8(FP), SI // arg 2 - namelen
+ MOVQ out+16(FP), DX // arg 3 - oldp
+ MOVQ size+24(FP), R10 // arg 4 - oldlenp
+ MOVQ dst+32(FP), R8 // arg 5 - newp
+ MOVQ ndst+40(FP), R9 // arg 6 - newlen
+ MOVQ $SYS___sysctl, AX
+ SYSCALL
+ JCC 4(PC)
+ NEGQ AX
+ MOVL AX, ret+48(FP)
+ RET
+ MOVL $0, AX
+ MOVL AX, ret+48(FP)
+ RET
+
+// int32 runtime·kqueue(void)
+TEXT runtime·kqueue(SB),NOSPLIT,$0
+ MOVQ $0, DI
+ MOVL $SYS_kqueue, AX
+ SYSCALL
+ JCC 2(PC)
+ NEGQ AX
+ MOVL AX, ret+0(FP)
+ RET
+
+// int32 runtime·kevent(int kq, Kevent *changelist, int nchanges, Kevent *eventlist, int nevents, Timespec *timeout)
+TEXT runtime·kevent(SB),NOSPLIT,$0
+ MOVL kq+0(FP), DI
+ MOVQ ch+8(FP), SI
+ MOVL nch+16(FP), DX
+ MOVQ ev+24(FP), R10
+ MOVL nev+32(FP), R8
+ MOVQ ts+40(FP), R9
+ MOVL $SYS___kevent50, AX
+ SYSCALL
+ JCC 2(PC)
+ NEGQ AX
+ MOVL AX, ret+48(FP)
+ RET
+
+// void runtime·closeonexec(int32 fd)
+TEXT runtime·closeonexec(SB),NOSPLIT,$0
+ MOVL fd+0(FP), DI // fd
+ MOVQ $F_SETFD, SI
+ MOVQ $FD_CLOEXEC, DX
+ MOVL $SYS_fcntl, AX
+ SYSCALL
+ RET
+
+// func runtime·setNonblock(int32 fd)
+TEXT runtime·setNonblock(SB),NOSPLIT,$0-4
+ MOVL fd+0(FP), DI // fd
+ MOVQ $3, SI // F_GETFL
+ MOVQ $0, DX
+ MOVL $92, AX // fcntl
+ SYSCALL
+ MOVL fd+0(FP), DI // fd
+ MOVQ $4, SI // F_SETFL
+ MOVQ $4, DX // O_NONBLOCK
+ ORL AX, DX
+ MOVL $92, AX // fcntl
+ SYSCALL
+ RET
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