diff options
Diffstat (limited to 'src/cmd/link/testdata')
| -rw-r--r-- | src/cmd/link/testdata/dynimportvar/asm/a.go | 15 | ||||
| -rw-r--r-- | src/cmd/link/testdata/dynimportvar/asm/a_amd64.s | 11 | ||||
| -rw-r--r-- | src/cmd/link/testdata/dynimportvar/asm/a_arm64.s | 11 | ||||
| -rw-r--r-- | src/cmd/link/testdata/dynimportvar/main.go | 32 |
4 files changed, 69 insertions, 0 deletions
diff --git a/src/cmd/link/testdata/dynimportvar/asm/a.go b/src/cmd/link/testdata/dynimportvar/asm/a.go new file mode 100644 index 0000000000..8d9299972b --- /dev/null +++ b/src/cmd/link/testdata/dynimportvar/asm/a.go @@ -0,0 +1,15 @@ +// Copyright 2023 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// This is a separate package because we cannot have Go +// assembly code and cgo code in the same package. + +//go:build darwin + +package asm + +//go:cgo_import_dynamic libc_mach_task_self_ mach_task_self_ "/usr/lib/libSystem.B.dylib" + +// load mach_task_self_ from assembly code +func Mach_task_self() uint32 diff --git a/src/cmd/link/testdata/dynimportvar/asm/a_amd64.s b/src/cmd/link/testdata/dynimportvar/asm/a_amd64.s new file mode 100644 index 0000000000..93547e32f1 --- /dev/null +++ b/src/cmd/link/testdata/dynimportvar/asm/a_amd64.s @@ -0,0 +1,11 @@ +// Copyright 2023 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +//go:build darwin + +TEXT ·Mach_task_self(SB),0,$0-4 + MOVQ $libc_mach_task_self_(SB), AX + MOVQ (AX), AX + MOVL AX, ret+0(FP) + RET diff --git a/src/cmd/link/testdata/dynimportvar/asm/a_arm64.s b/src/cmd/link/testdata/dynimportvar/asm/a_arm64.s new file mode 100644 index 0000000000..bd3c9d71f5 --- /dev/null +++ b/src/cmd/link/testdata/dynimportvar/asm/a_arm64.s @@ -0,0 +1,11 @@ +// Copyright 2023 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +//go:build darwin + +TEXT ·Mach_task_self(SB),0,$0-4 + MOVD $libc_mach_task_self_(SB), R0 + MOVD (R0), R0 + MOVW R0, ret+0(FP) + RET diff --git a/src/cmd/link/testdata/dynimportvar/main.go b/src/cmd/link/testdata/dynimportvar/main.go new file mode 100644 index 0000000000..658d340532 --- /dev/null +++ b/src/cmd/link/testdata/dynimportvar/main.go @@ -0,0 +1,32 @@ +// Copyright 2023 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// Test that we can access dynamically imported variables. +// We ues mach_task_self_ from darwin's system library. +// Check that loading the variable from C and Go gets the +// same result. + +//go:build darwin + +package main + +/* +#include <mach/mach_init.h> + +unsigned int Mach_task_self(void) { + return mach_task_self(); +} +*/ +import "C" + +import "cmd/link/testdata/dynimportvar/asm" + +func main() { + c := uint32(C.Mach_task_self()) + a := asm.Mach_task_self() + if a != c { + println("got", a, "want", c) + panic("FAIL") + } +} |