34 lines
1.2 KiB
Go
34 lines
1.2 KiB
Go
// Copyright (c) 2026 Petr Balvín <opensource@petrbalvin.org> (https://petrbalvin.org)
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// SPDX-License-Identifier: BSD-3-Clause
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//go:build loong64
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package verify
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// leaveCheckedPtr is initialised by the linker from the GLOBL/DATA in
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// abi_loong64.s: it holds the raw address of leaveJITCheckedRaw (which has
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// no ABIInternal wrapper, so the JIT function RETs directly into it).
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var leaveCheckedPtr uintptr
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// enterJITChecked sets a sentinel in R22 (the goroutine pointer; loong64
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// keeps no hardware frame pointer), switches to the prepared stack and
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// jumps to fn. The body lives in abi_loong64.s and reads the parameters
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// from the frame by name, which GoLand cannot see.
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//
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// noinspection GoUnusedParameter
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//
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//go:nosplit
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func enterJITChecked(fn uintptr, stack uintptr)
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// leaveJITCheckedRaw is the raw return trampoline for ABI checks. Its
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// address is obtained from the GLOBL in abi_loong64.s (leaveCheckedPtr),
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// which points to the .abi0 code, NOT the ABIInternal wrapper that this
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// declaration would generate. The declaration exists solely to satisfy
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// go vet's "missing Go declaration" check.
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//
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// noinspection GoUnusedFunction
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//
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//lint:ignore U1000 the assembly obtains this address through leaveCheckedPtr
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//go:nosplit
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func leaveJITCheckedRaw()
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