gasm-sdk/verify/abi_arm64.go

// Copyright (c) 2026 Petr Balvín <opensource@petrbalvin.org> (https://petrbalvin.org)
// SPDX-License-Identifier: BSD-3-Clause

//go:build arm64

package verify

// leaveCheckedPtr is initialised by the linker from the GLOBL/DATA in
// abi_arm64.s: it holds the raw address of leaveJITCheckedRaw (which has
// no ABIInternal wrapper, so the JIT function RETs directly into it).
var leaveCheckedPtr uintptr

// enterJITChecked sets sentinels in R29 (frame pointer) and R28 (g),
// switches to the prepared stack and branches to fn.
// The body lives in abi_arm64.s and reads the parameters from the frame by
// name, which GoLand cannot see.
//
// noinspection GoUnusedParameter
//
//go:nosplit
func enterJITChecked(fn uintptr, stack uintptr)

// leaveJITCheckedRaw is the raw return trampoline for ABI checks.  Its
// address is obtained from the GLOBL in abi_arm64.s (leaveCheckedPtr),
// which points to the .abi0 code, NOT the ABIInternal wrapper that this
// declaration would generate.  The declaration exists solely to satisfy
// go vet's "missing Go declaration" check.
//
// noinspection GoUnusedFunction
//
//lint:ignore U1000 the assembly obtains this address through leaveCheckedPtr
//go:nosplit
func leaveJITCheckedRaw()