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| author | Ian Lance Taylor <iant@golang.org> | 2021-07-30 14:28:58 -0700 |
|---|---|---|
| committer | Ian Lance Taylor <iant@golang.org> | 2021-08-12 20:23:07 -0700 |
| commit | c5b21c3f4c17b0649155035d2f9aa97b2da8a813 (patch) | |
| tree | c6d3a68b503ba5b16182acbb958e3e5dbc95a43b /libgo/go/runtime/slice.go | |
| parent | 72be20e20299ec57b4bc9ba03d5b7d6bf10e97cc (diff) | |
| download | gcc-c5b21c3f4c17b0649155035d2f9aa97b2da8a813.zip gcc-c5b21c3f4c17b0649155035d2f9aa97b2da8a813.tar.gz gcc-c5b21c3f4c17b0649155035d2f9aa97b2da8a813.tar.bz2 | |
libgo: update to Go1.17rc2
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/341629
Diffstat (limited to 'libgo/go/runtime/slice.go')
| -rw-r--r-- | libgo/go/runtime/slice.go | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/libgo/go/runtime/slice.go b/libgo/go/runtime/slice.go index d4c0e90..8654aba 100644 --- a/libgo/go/runtime/slice.go +++ b/libgo/go/runtime/slice.go @@ -152,6 +152,18 @@ func unsafeslice64(et *_type, ptr unsafe.Pointer, len64 int64) { unsafeslice(et, ptr, len) } +func unsafeslicecheckptr(et *_type, ptr unsafe.Pointer, len64 int64) { + unsafeslice64(et, ptr, len64) + + /* Commented out for gofrontend. + // Check that underlying array doesn't straddle multiple heap objects. + // unsafeslice64 has already checked for overflow. + if checkptrStraddles(ptr, uintptr(len64)*et.size) { + throw("checkptr: unsafe.Slice result straddles multiple allocations") + } + */ +} + func panicunsafeslicelen() { panic(errorString("unsafe.Slice: len out of range")) } |