if toLen < n {
		n = toLen
	}

	if width == 0 {
		return n
	}

	size := uintptr(n) * width
	if raceenabled {
		callerpc := getcallerpc()
		pc := abi.FuncPCABIInternal(slicecopy)
		racereadrangepc(fromPtr, size, callerpc, pc)
		racewriterangepc(toPtr, size, callerpc, pc)
	}
	if msanenabled {
		msanread(fromPtr, size)
		msanwrite(toPtr, size)
	}
	if asanenabled {
		asanread(fromPtr, size)

	}
	print("\n")
}

// callers should be an internal detail,
// (and is almost identical to Callers),
// but widely used packages access it using linkname.
// Notable members of the hall of shame include:
//   - github.com/phuslu/log
//
// Do not remove or change the type signature.
// See go.dev/issue/67401.
//
//go:linkname callers
func callers(skip int, pcbuf []uintptr) int {

 */
func chansend(c *hchan, ep unsafe.Pointer, block bool, callerpc uintptr) bool {
	if c == nil {
		if !block {
			return false
		}
		gopark(nil, nil, waitReasonChanSendNilChan, traceBlockForever, 2)
		throw("unreachable")
	}

	if debugChan {
		print("chansend: chan=", c, "\n")
	}

	if raceenabled {
		racereadpc(c.raceaddr(), callerpc, abi.FuncPCABIInternal(chansend))
	}

) {
	s.monitoring.CSR.Increment()
	caller, err := security.Authenticate(ctx, s.Authenticators)
	if caller == nil || err != nil {
		s.monitoring.AuthnError.Increment()
		return nil, status.Error(codes.Unauthenticated, "request authenticate failure")
	}

	serverCaLog := serverCaLog.WithLabels("client", security.GetConnectionAddress(ctx))
	// By default, we will use the callers identity for the certificate
	sans := caller.Identities

	MOVD	$__tsan_go_atomic32_load(SB), R8
	ADD	$32, R1, R6	// addr of caller's 1st arg
	BR	racecallatomic<>(SB)
	RET

TEXT	sync∕atomic·LoadInt64(SB), NOSPLIT, $0-16
	GO_ARGS
	// void __tsan_go_atomic64_load(ThreadState *thr, uptr cpc, uptr pc, u8 *a);
	MOVD	$__tsan_go_atomic64_load(SB), R8
	ADD	$32, R1, R6	// addr of caller's 1st arg
	BR	racecallatomic<>(SB)
	RET

      ATOMIC_HELPER.compareAndSetSeenExceptions(this, null, seenExceptionsLocal);
      /*
       * If another handleException() caller created the set, we need to use that copy in case yet
       * other callers have added to it.
       *
       * This read is guaranteed to get us the right value because we only set this once (here).
       *

    if (!symbol_uses.has_value()) {
      return failure();
    }
    for (auto use : *symbol_uses) {
      Operation* caller = use.getUser();
      bool changed = false;
      rewriter.startOpModification(caller);
      for (auto [result, type] :
           llvm::zip(caller->getResults(), return_types)) {
        if (result.getType() != type) {
          result.setType(type);
          changed = true;
        }

package runtime

import (
	"internal/abi"
	"internal/goarch"
	"unsafe"
)

func mapaccess1_fast32(t *maptype, h *hmap, key uint32) unsafe.Pointer {
	if raceenabled && h != nil {
		callerpc := getcallerpc()
		racereadpc(unsafe.Pointer(h), callerpc, abi.FuncPCABIInternal(mapaccess1_fast32))
	}
	if h == nil || h.count == 0 {
		return unsafe.Pointer(&zeroVal[0])
	}
	if h.flags&hashWriting != 0 {

// func runtime·racefuncenter(pc uintptr)
// Called from instrumented code.
TEXT	runtime·racefuncenter(SB), NOSPLIT, $0-8
	MOVD	callpc+0(FP), R3
	JMP	racefuncenter<>(SB)

// Common code for racefuncenter
// R3 = caller's return address
TEXT	racefuncenter<>(SB), NOSPLIT, $0-0
	// void __tsan_func_enter(ThreadState *thr, void *pc);
	MOVD	$__tsan_func_enter(SB), R1
	MOVD	g_racectx(g), R2
	BL	racecall<>(SB)
	RET

	MOVD	fd+0(FP), R3
	MOVD	p+8(FP), R4
	MOVW	n+16(FP), R5
	SYSCALL	$SYS_write
	BVC	2(PC)
	NEG	R3	// caller expects negative errno
	MOVW	R3, ret+24(FP)
	RET

TEXT runtime·read(SB),NOSPLIT|NOFRAME,$0-28
	MOVW	fd+0(FP), R3
	MOVD	p+8(FP), R4
	MOVW	n+16(FP), R5
	SYSCALL	$SYS_read
	BVC	2(PC)
	NEG	R3	// caller expects negative errno
	MOVW	R3, ret+24(FP)
	RET

// func pipe2(flags int32) (r, w int32, errno int32)