// Make it look the like faulting PC called sigpanic.
		c.set_link(uint64(pc))
	}

	// In case we are panicking from external C code
	c.set_r22(uint64(uintptr(unsafe.Pointer(gp))))
	c.set_pc(uint64(abi.FuncPCABIInternal(sigpanic)))
}

func (c *sigctxt) pushCall(targetPC, resumePC uintptr) {
	// Push the LR to stack, as we'll clobber it in order to
	// push the call. The function being pushed is responsible

		// Make it look the like faulting PC called sigpanic.
		c.set_lr(uint64(pc))
	}

	// In case we are panicking from external C code
	c.set_r28(uint64(uintptr(unsafe.Pointer(gp))))
	c.set_pc(uint64(abi.FuncPCABIInternal(sigpanic)))
}

func (c *sigctxt) pushCall(targetPC, resumePC uintptr) {
	// Push the LR to stack, as we'll clobber it in order to
	// push the call. The function being pushed is responsible

	if got, want := offset, uint64(0); got != want {
		t.Errorf("got %x, want %x", got, want)
	}
	if !strings.HasSuffix(filename, "pprof.test") {
		t.Errorf("got %s, want pprof.test", filename)
	}
	addr := uint64(abi.FuncPCABIInternal(TestVMInfo))
	if addr < lo || addr > hi {
		t.Errorf("%x..%x does not contain function %p (%x)", lo, hi, TestVMInfo, addr)
	}
}

func useVMMapWithRetry(t *testing.T) (hi, lo uint64, err error) {

		if getg().m != h.mp {
			println("trap on wrong M", getg().m, h.mp)
			return false
		}
		// Save the signal context
		h.saveSigContext(ctxt)
		// Set PC to debugCallV2.
		ctxt.setsigpc(uint64(abi.FuncPCABIInternal(debugCallV2)))
		// Call injected. Switch to the debugCall protocol.
		testSigtrap = h.handleF
	case _Grunnable:
		// Ask InjectDebugCall to pause for a bit and then try
		// again to interrupt this goroutine.