// Copyright 2012 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.

// MakeFunc implementation.

package reflect

import (
	"internal/abi"
	"unsafe"
)

// makeFuncImpl is the closure value implementing the function
// returned by MakeFunc.
// The first three words of this type must be kept in sync with

// license that can be found in the LICENSE file.

package rtcov

import "unsafe"

// This package contains types whose structure is shared between
// the runtime package and the "runtime/coverage" implementation.

// CovMetaBlob is a container for holding the meta-data symbol (an
// RODATA variable) for an instrumented Go package. Here "p" points to
// the symbol itself, "len" is the length of the sym in bytes, and

	return p
}

// wbBufFlush flushes the current P's write barrier buffer to the GC
// workbufs.
//
// This must not have write barriers because it is part of the write
// barrier implementation.
//
// This and everything it calls must be nosplit because 1) the stack
// contains untyped slots from gcWriteBarrier and 2) there must not be
// a GC safe point between the write barrier test in the caller and

// Each call to New returns a distinct error value even if the text is identical.
func New(text string) error {
	return &errorString{text}
}

// errorString is a trivial implementation of error.
type errorString struct {
	s string
}

func (e *errorString) Error() string {
	return e.s
}

// ErrUnsupported indicates that a requested operation cannot be performed,

	// may be overwritten.
	Open(dst, nonce, ciphertext, additionalData []byte) ([]byte, error)
}

// gcmAble is an interface implemented by ciphers that have a specific optimized
// implementation of GCM, like crypto/aes. NewGCM will check for this interface
// and return the specific AEAD if found.
type gcmAble interface {
	NewGCM(nonceSize, tagSize int) (AEAD, error)
}

	}
	if hasTerms {
		buf.WriteString(s.terms.String())
	}
	buf.WriteString("}")
	return buf.String()
}

// ----------------------------------------------------------------------------
// Implementation

// hasTerms reports whether the type set has specific type terms.
func (s *_TypeSet) hasTerms() bool { return !s.terms.isEmpty() && !s.terms.isAll() }

// subsetOf reports whether s1 ⊆ s2.

type ctr struct {
	b       Block
	ctr     []byte
	out     []byte
	outUsed int
}

const streamBufferSize = 512

// ctrAble is an interface implemented by ciphers that have a specific optimized
// implementation of CTR, like crypto/aes. NewCTR will check for this interface
// and return the specific Stream if found.
type ctrAble interface {
	NewCTR(iv []byte) Stream
}

	}

	if remain == 0 {
		fi, err := f.Stat()
		if err != nil {
			return 0, err, false
		}

		remain = fi.Size()
	}

	// The other quirk with Darwin/FreeBSD/DragonFly/Solaris's sendfile
	// implementation is that it doesn't use the current position
	// of the file -- if you pass it offset 0, it starts from
	// offset 0. There's no way to tell it "start from current
	// position", so we have to manage that explicitly.

// Copyright 2020 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.

package runtime

// Metrics implementation exported to runtime/metrics.

import (
	"internal/godebugs"
	"unsafe"
)

var (
	// metrics is a map of runtime/metrics keys to data used by the runtime
	// to sample each metric's value. metricsInit indicates it has been
	// initialized.

// but it is also input to mksyscall,
// which parses the //sys lines and generates system call stubs.
// Note that sometimes we use a lowercase //sys name and wrap
// it in our own nicer implementation, either here or in
// syscall_bsd.go or syscall_unix.go.

package syscall

import (
	"sync"
	"unsafe"
)

func Syscall(trap, a1, a2, a3 uintptr) (r1, r2 uintptr, err Errno)