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

//go:build !libfuzzer

package fuzz

import _ "unsafe" // for go:linkname

//go:linkname libfuzzerTraceCmp1 runtime.libfuzzerTraceCmp1
//go:linkname libfuzzerTraceCmp2 runtime.libfuzzerTraceCmp2
//go:linkname libfuzzerTraceCmp4 runtime.libfuzzerTraceCmp4
//go:linkname libfuzzerTraceCmp8 runtime.libfuzzerTraceCmp8

// This may result in these functions having callers that are nosplit. That is why they must be nosplit.
//
//go:nosplit
func libfuzzerTraceCmp1(arg0, arg1 uint8, fakePC uint) {
	fakePC = fakePC % retSledSize
	libfuzzerCallTraceIntCmp(&__sanitizer_cov_trace_cmp1, uintptr(arg0), uintptr(arg1), uintptr(fakePC))
}

//go:nosplit

	{"runtime.msanwrite", 1},
	{"runtime.msanmove", 1},
	{"runtime.asanread", 1},
	{"runtime.asanwrite", 1},
	{"runtime.checkptrAlignment", 1},
	{"runtime.checkptrArithmetic", 1},
	{"runtime.libfuzzerTraceCmp1", 1},
	{"runtime.libfuzzerTraceCmp2", 1},
	{"runtime.libfuzzerTraceCmp4", 1},
	{"runtime.libfuzzerTraceCmp8", 1},
	{"runtime.libfuzzerTraceConstCmp1", 1},
	{"runtime.libfuzzerTraceConstCmp2", 1},

func asanread(addr, size uintptr)
func asanwrite(addr, size uintptr)

func checkptrAlignment(unsafe.Pointer, *byte, uintptr)
func checkptrArithmetic(unsafe.Pointer, []unsafe.Pointer)

func libfuzzerTraceCmp1(uint8, uint8, uint)
func libfuzzerTraceCmp2(uint16, uint16, uint)
func libfuzzerTraceCmp4(uint32, uint32, uint)
func libfuzzerTraceCmp8(uint64, uint64, uint)
func libfuzzerTraceConstCmp1(uint8, uint8, uint)

	{"msanwrite", funcTag, 144},
	{"msanmove", funcTag, 145},
	{"asanread", funcTag, 144},
	{"asanwrite", funcTag, 144},
	{"checkptrAlignment", funcTag, 146},
	{"checkptrArithmetic", funcTag, 148},
	{"libfuzzerTraceCmp1", funcTag, 149},
	{"libfuzzerTraceCmp2", funcTag, 150},
	{"libfuzzerTraceCmp4", funcTag, 151},
	{"libfuzzerTraceCmp8", funcTag, 152},
	{"libfuzzerTraceConstCmp1", funcTag, 149},

				l, r = r, l
			}
			constcmp := l.Op() == ir.OLITERAL && r.Op() != ir.OLITERAL

			var fn string
			var paramType *types.Type
			switch t.Size() {
			case 1:
				fn = "libfuzzerTraceCmp1"
				if constcmp {
					fn = "libfuzzerTraceConstCmp1"
				}
				paramType = types.Types[types.TUINT8]
			case 2:
				fn = "libfuzzerTraceCmp2"
				if constcmp {
					fn = "libfuzzerTraceConstCmp2"