1 files changed, 105 insertions, 0 deletions
diff --git a/src/runtime/panic32.go b/src/runtime/panic32.go
new file mode 100644
index 0000000..aea8401
--- /dev/null
+++ b/src/runtime/panic32.go
@@ -0,0 +1,105 @@
+// 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.
+
+// +build 386 arm mips mipsle
+
+package runtime
+
+// Additional index/slice error paths for 32-bit platforms.
+// Used when the high word of a 64-bit index is not zero.
+
+// failures in the comparisons for s[x], 0 <= x < y (y == len(s))
+func goPanicExtendIndex(hi int, lo uint, y int) {
+	panicCheck1(getcallerpc(), "index out of range")
+	panic(boundsError{x: int64(hi)<<32 + int64(lo), signed: true, y: y, code: boundsIndex})
+}
+func goPanicExtendIndexU(hi uint, lo uint, y int) {
+	panicCheck1(getcallerpc(), "index out of range")
+	panic(boundsError{x: int64(hi)<<32 + int64(lo), signed: false, y: y, code: boundsIndex})
+}
+
+// failures in the comparisons for s[:x], 0 <= x <= y (y == len(s) or cap(s))
+func goPanicExtendSliceAlen(hi int, lo uint, y int) {
+	panicCheck1(getcallerpc(), "slice bounds out of range")
+	panic(boundsError{x: int64(hi)<<32 + int64(lo), signed: true, y: y, code: boundsSliceAlen})
+}
+func goPanicExtendSliceAlenU(hi uint, lo uint, y int) {
+	panicCheck1(getcallerpc(), "slice bounds out of range")
+	panic(boundsError{x: int64(hi)<<32 + int64(lo), signed: false, y: y, code: boundsSliceAlen})
+}
+func goPanicExtendSliceAcap(hi int, lo uint, y int) {
+	panicCheck1(getcallerpc(), "slice bounds out of range")
+	panic(boundsError{x: int64(hi)<<32 + int64(lo), signed: true, y: y, code: boundsSliceAcap})
+}
+func goPanicExtendSliceAcapU(hi uint, lo uint, y int) {
+	panicCheck1(getcallerpc(), "slice bounds out of range")
+	panic(boundsError{x: int64(hi)<<32 + int64(lo), signed: false, y: y, code: boundsSliceAcap})
+}
+
+// failures in the comparisons for s[x:y], 0 <= x <= y
+func goPanicExtendSliceB(hi int, lo uint, y int) {
+	panicCheck1(getcallerpc(), "slice bounds out of range")
+	panic(boundsError{x: int64(hi)<<32 + int64(lo), signed: true, y: y, code: boundsSliceB})
+}
+func goPanicExtendSliceBU(hi uint, lo uint, y int) {
+	panicCheck1(getcallerpc(), "slice bounds out of range")
+	panic(boundsError{x: int64(hi)<<32 + int64(lo), signed: false, y: y, code: boundsSliceB})
+}
+
+// failures in the comparisons for s[::x], 0 <= x <= y (y == len(s) or cap(s))
+func goPanicExtendSlice3Alen(hi int, lo uint, y int) {
+	panicCheck1(getcallerpc(), "slice bounds out of range")
+	panic(boundsError{x: int64(hi)<<32 + int64(lo), signed: true, y: y, code: boundsSlice3Alen})
+}
+func goPanicExtendSlice3AlenU(hi uint, lo uint, y int) {
+	panicCheck1(getcallerpc(), "slice bounds out of range")
+	panic(boundsError{x: int64(hi)<<32 + int64(lo), signed: false, y: y, code: boundsSlice3Alen})
+}
+func goPanicExtendSlice3Acap(hi int, lo uint, y int) {
+	panicCheck1(getcallerpc(), "slice bounds out of range")
+	panic(boundsError{x: int64(hi)<<32 + int64(lo), signed: true, y: y, code: boundsSlice3Acap})
+}
+func goPanicExtendSlice3AcapU(hi uint, lo uint, y int) {
+	panicCheck1(getcallerpc(), "slice bounds out of range")
+	panic(boundsError{x: int64(hi)<<32 + int64(lo), signed: false, y: y, code: boundsSlice3Acap})
+}
+
+// failures in the comparisons for s[:x:y], 0 <= x <= y
+func goPanicExtendSlice3B(hi int, lo uint, y int) {
+	panicCheck1(getcallerpc(), "slice bounds out of range")
+	panic(boundsError{x: int64(hi)<<32 + int64(lo), signed: true, y: y, code: boundsSlice3B})
+}
+func goPanicExtendSlice3BU(hi uint, lo uint, y int) {
+	panicCheck1(getcallerpc(), "slice bounds out of range")
+	panic(boundsError{x: int64(hi)<<32 + int64(lo), signed: false, y: y, code: boundsSlice3B})
+}
+
+// failures in the comparisons for s[x:y:], 0 <= x <= y
+func goPanicExtendSlice3C(hi int, lo uint, y int) {
+	panicCheck1(getcallerpc(), "slice bounds out of range")
+	panic(boundsError{x: int64(hi)<<32 + int64(lo), signed: true, y: y, code: boundsSlice3C})
+}
+func goPanicExtendSlice3CU(hi uint, lo uint, y int) {
+	panicCheck1(getcallerpc(), "slice bounds out of range")
+	panic(boundsError{x: int64(hi)<<32 + int64(lo), signed: false, y: y, code: boundsSlice3C})
+}
+
+// Implemented in assembly, as they take arguments in registers.
+// Declared here to mark them as ABIInternal.
+func panicExtendIndex(hi int, lo uint, y int)
+func panicExtendIndexU(hi uint, lo uint, y int)
+func panicExtendSliceAlen(hi int, lo uint, y int)
+func panicExtendSliceAlenU(hi uint, lo uint, y int)
+func panicExtendSliceAcap(hi int, lo uint, y int)
+func panicExtendSliceAcapU(hi uint, lo uint, y int)
+func panicExtendSliceB(hi int, lo uint, y int)
+func panicExtendSliceBU(hi uint, lo uint, y int)
+func panicExtendSlice3Alen(hi int, lo uint, y int)
+func panicExtendSlice3AlenU(hi uint, lo uint, y int)
+func panicExtendSlice3Acap(hi int, lo uint, y int)
+func panicExtendSlice3AcapU(hi uint, lo uint, y int)
+func panicExtendSlice3B(hi int, lo uint, y int)
+func panicExtendSlice3BU(hi uint, lo uint, y int)
+func panicExtendSlice3C(hi int, lo uint, y int)
+func panicExtendSlice3CU(hi uint, lo uint, y int)