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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 13:16:40 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 13:16:40 +0000 |
commit | 47ab3d4a42e9ab51c465c4322d2ec233f6324e6b (patch) | |
tree | a61a0ffd83f4a3def4b36e5c8e99630c559aa723 /test/fixedbugs/issue32288.go | |
parent | Initial commit. (diff) | |
download | golang-1.18-47ab3d4a42e9ab51c465c4322d2ec233f6324e6b.tar.xz golang-1.18-47ab3d4a42e9ab51c465c4322d2ec233f6324e6b.zip |
Adding upstream version 1.18.10.upstream/1.18.10upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'test/fixedbugs/issue32288.go')
-rw-r--r-- | test/fixedbugs/issue32288.go | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/test/fixedbugs/issue32288.go b/test/fixedbugs/issue32288.go new file mode 100644 index 0000000..91c930c --- /dev/null +++ b/test/fixedbugs/issue32288.go @@ -0,0 +1,48 @@ +// run + +// Copyright 2019 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. + +package main + +type T struct { + s [1]string + pad [16]uintptr +} + +//go:noinline +func f(t *int, p *int) []T { + var res []T + for { + var e *T + res = append(res, *e) + } +} + +func main() { + defer func() { + useStack(100) // force a stack copy + // We're expecting a panic. + // The bug in this issue causes a throw, which this recover() will not squash. + recover() + }() + junk() // fill the stack with invalid pointers + f(nil, nil) +} + +func useStack(n int) { + if n == 0 { + return + } + useStack(n - 1) +} + +//go:noinline +func junk() uintptr { + var a [128]uintptr // 1k of bad pointers on the stack + for i := range a { + a[i] = 0xaa + } + return a[12] +} |