87 lines
2.1 KiB
Go
87 lines
2.1 KiB
Go
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// 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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package verify
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import (
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"runtime"
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"testing"
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)
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// requireArchHost skips unless the test binary runs on the named GOARCH: the
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// JIT executes native code, so an arm64 kernel only runs on an arm64 CPU
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// (real hardware or qemu-user emulation).
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func requireArchHost(t *testing.T, goarch string) {
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t.Helper()
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if runtime.GOARCH != goarch {
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t.Skipf("runs only on %s hosts (this host is %s)", goarch, runtime.GOARCH)
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}
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}
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// TestPlainCallArm64 checks the bare JIT call path (no ABI sentinels) on
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// arm64: the trampoline, the kernel and the result read-back.
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func TestPlainCallArm64(t *testing.T) {
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requireArchHost(t, "arm64")
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k, err := Load("../testdata/verify/abi_arm64.s")
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if err != nil {
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t.Fatalf("Load: %v", err)
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}
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t.Cleanup(k.Close)
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args := make([]byte, 24)
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PutUint64(args, 0, 3)
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PutUint64(args, 8, 4)
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out, err := k.CallFunc("cleanAdd", args)
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if err != nil {
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t.Fatalf("CallFunc: %v", err)
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}
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if got := int64(GetUint64(out, 16)); got != 7 {
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t.Errorf("cleanAdd(3, 4) = %d, want 7", got)
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}
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}
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// TestPlainCallRiscv64 is TestPlainCallArm64 for riscv64.
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func TestPlainCallRiscv64(t *testing.T) {
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requireArchHost(t, "riscv64")
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k, err := Load("../testdata/verify/abi_riscv64.s")
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if err != nil {
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t.Fatalf("Load: %v", err)
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}
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t.Cleanup(k.Close)
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args := make([]byte, 24)
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PutUint64(args, 0, 3)
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PutUint64(args, 8, 4)
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out, err := k.CallFunc("cleanAdd", args)
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if err != nil {
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t.Fatalf("CallFunc: %v", err)
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}
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if got := int64(GetUint64(out, 16)); got != 7 {
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t.Errorf("cleanAdd(3, 4) = %d, want 7", got)
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}
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}
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// TestPlainCallLoong64 is TestPlainCallArm64 for loong64.
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func TestPlainCallLoong64(t *testing.T) {
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requireArchHost(t, "loong64")
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k, err := Load("../testdata/verify/abi_loong64.s")
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if err != nil {
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t.Fatalf("Load: %v", err)
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}
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t.Cleanup(k.Close)
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args := make([]byte, 24)
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PutUint64(args, 0, 3)
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PutUint64(args, 8, 4)
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out, err := k.CallFunc("cleanAdd", args)
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if err != nil {
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t.Fatalf("CallFunc: %v", err)
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}
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if got := int64(GetUint64(out, 16)); got != 7 {
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t.Errorf("cleanAdd(3, 4) = %d, want 7", got)
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}
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}
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