// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// Functions to access/create device major and minor numbers matching the
// encoding used by the Linux kernel and glibc.
//
// The information below is extracted and adapted from bits/sysmacros.h in the
// glibc sources:
//
// dev_t in glibc is 64-bit, with 32-bit major and minor numbers. glibc's

// so there is no risk of polluting the entire cache with data accessed once.
// Another goal of DirectIO is to minimize the mutation of data by the kernel
// before issuing IO to underlying devices. ZFS users often enable features like
// compression and checksumming which currently necessitates mutating data in
// the kernel.
//
// DirectIO semantics for a filesystem like ZFS would be quite different than

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

#include "go_asm.h"
#include "go_tls.h"
#include "textflag.h"

// This is the entry point for the program from the
// kernel for an ordinary -buildmode=exe program.
TEXT _rt0_arm_windows(SB),NOSPLIT|NOFRAME,$0

		// distinguished by the mapping name for the kernel image:
		// '[kernel.kallsyms]_text' or '[kernel.kallsyms]_stext', respectively. If we haven't
		// been able to parse it from the mapping, we default to _stext.
		if relocationSymbol == "" {
			relocationSymbol = "_stext"
		}
		for _, s := range symbols {
			if s.Name == relocationSymbol {
				kernelOffset = &s.Value
				break
			}
		}
	}

        command:
        - "/bin/sh"
        - "-c"
        - "exec /node-problem-detector --logtostderr --config.system-log-monitor=/config/kernel-monitor.json,/config/systemd-monitor.json --config.custom-plugin-monitor=/config/kernel-monitor-counter.json,/config/systemd-monitor-counter.json --config.system-stats-monitor=/config/system-stats-monitor.json >>/var/log/node-problem-detector.log 2>&1"
        securityContext:

# kernel registration - REGISTER_OP, REGISTER_KERNEL_BUILDER, etc.
#
# This setting is currently experimental. The 'v2' implementation does _not_
# correspond to a particular, finalized design; rather, it relates to
# developing one.
#
# The current aim of the 'v2' implementation is to allow 'unused' ops and
# kernels to be discarded by the linker (to the benefit of binary size).

	notify int32
	// below here is a union; sigev_notify_thread_id is the only field we use
	sigev_notify_thread_id int32
}

type sigevent struct {
	sigeventFields
	// Pad struct to the max size in the kernel.
	_ [_sigev_max_size - unsafe.Sizeof(sigeventFields{})]byte
}

const (
	_O_RDONLY   = 0x0
	_O_WRONLY   = 0x1
	_O_CREAT    = 0x40
	_O_TRUNC    = 0x200
	_O_NONBLOCK = 0x800
	_O_CLOEXEC  = 0x80000

	// 100000 microseconds is equivalent to 100ms
	quotaPeriod = 100000
	// 1000 microseconds is equivalent to 1ms
	// defined here:
	// https://github.com/torvalds/linux/blob/cac03ac368fabff0122853de2422d4e17a32de08/kernel/sched/core.c#L10546
	minQuotaPeriod = 1000
)

// milliCPUToQuota converts milliCPU to CFS quota and period values
// Input parameters and resulting value is number of microseconds.

namespace tensorflow {

// An OpKernel that compiles an op to an XLA computation and runs it. Unlike
// XlaLaunch this doesn't rely on any rewrites of the graphdef - it will run a
// vanilla TensorFlow op as long as the bridge supports it.
class XlaCompileOnDemandOp : public OpKernel {
 public:
  explicit XlaCompileOnDemandOp(OpKernelConstruction* ctx)
      : OpKernel(ctx),

	SYSCALL
	MOVD	R2, r1+32(FP)
	MOVD	R3, r2+40(FP)
	RET

#define SYS_SOCKETCALL 102	/* from zsysnum_linux_s390x.go */

// func socketcall(call int, a0, a1, a2, a3, a4, a5 uintptr) (n int, err int)
// Kernel interface gets call sub-number and pointer to a0.
TEXT ·socketcall(SB),NOSPLIT,$0-72
	BL	runtime·entersyscall(SB)
	MOVD	$SYS_SOCKETCALL, R1	// syscall entry
	MOVD	call+0(FP), R2		// socket call number