43055d2379
Shifting by signed types is a new language feature in Go 1.13.
This requires a patch to the testsuite.
Updates golang/go#19113
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/190977
* go.test/test/fixedbugs/bug073.go: Update for language changes.
From-SVN: r274755
125 lines
3.5 KiB
C
125 lines
3.5 KiB
C
/* go-runtime-error.c -- Go runtime error.
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Copyright 2010 The Go Authors. All rights reserved.
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Use of this source code is governed by a BSD-style
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license that can be found in the LICENSE file. */
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#include "runtime.h"
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/* The compiler generates calls to this function. This enum values
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are known to the compiler and used by compiled code. Any change
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here must be reflected in the compiler. */
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enum
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{
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/* Slice index out of bounds: negative or larger than the length of
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the slice. */
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SLICE_INDEX_OUT_OF_BOUNDS = 0,
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/* Array index out of bounds. */
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ARRAY_INDEX_OUT_OF_BOUNDS = 1,
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/* String index out of bounds. */
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STRING_INDEX_OUT_OF_BOUNDS = 2,
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/* Slice slice out of bounds: negative or larger than the length of
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the slice or high bound less than low bound. */
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SLICE_SLICE_OUT_OF_BOUNDS = 3,
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/* Array slice out of bounds. */
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ARRAY_SLICE_OUT_OF_BOUNDS = 4,
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/* String slice out of bounds. */
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STRING_SLICE_OUT_OF_BOUNDS = 5,
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/* Dereference of nil pointer. This is used when there is a
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dereference of a pointer to a very large struct or array, to
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ensure that a gigantic array is not used a proxy to access random
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memory locations. */
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NIL_DEREFERENCE = 6,
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/* Slice length out of bounds in make: negative or overflow or length
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greater than capacity. */
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MAKE_SLICE_LEN_OUT_OF_BOUNDS = 7,
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/* Slice capacity out of bounds in make: negative. */
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MAKE_SLICE_CAP_OUT_OF_BOUNDS = 8,
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/* Map capacity out of bounds in make: negative or overflow. */
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MAKE_MAP_OUT_OF_BOUNDS = 9,
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/* Channel capacity out of bounds in make: negative or overflow. */
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MAKE_CHAN_OUT_OF_BOUNDS = 10,
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/* Integer division by zero. */
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DIVISION_BY_ZERO = 11,
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/* Go statement with nil function. */
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GO_NIL = 12,
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/* Shift by negative value. */
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SHIFT_BY_NEGATIVE = 13
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};
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extern void __go_runtime_error (int32) __attribute__ ((noreturn));
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void
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__go_runtime_error (int32 i)
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{
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struct funcfileline_return fileline;
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bool in_runtime;
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fileline = runtime_funcfileline ((uintptr) runtime_getcallerpc()-1, 0);
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in_runtime = (fileline.retfn.len > 0
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&& (__builtin_strncmp ((const char *) fileline.retfn.str,
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"runtime.", 8)
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== 0));
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switch (i)
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{
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case SLICE_INDEX_OUT_OF_BOUNDS:
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case ARRAY_INDEX_OUT_OF_BOUNDS:
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case STRING_INDEX_OUT_OF_BOUNDS:
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if (in_runtime)
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runtime_throw ("index out of range");
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runtime_panicstring ("index out of range");
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case SLICE_SLICE_OUT_OF_BOUNDS:
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case ARRAY_SLICE_OUT_OF_BOUNDS:
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case STRING_SLICE_OUT_OF_BOUNDS:
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if (in_runtime)
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runtime_throw ("slice bounds out of range");
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runtime_panicstring ("slice bounds out of range");
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case NIL_DEREFERENCE:
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runtime_panicstring ("nil pointer dereference");
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case MAKE_SLICE_LEN_OUT_OF_BOUNDS:
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runtime_panicstring ("make slice len out of range");
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case MAKE_SLICE_CAP_OUT_OF_BOUNDS:
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runtime_panicstring ("make slice cap out of range");
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case MAKE_MAP_OUT_OF_BOUNDS:
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runtime_panicstring ("make map len out of range");
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case MAKE_CHAN_OUT_OF_BOUNDS:
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runtime_panicstring ("make chan len out of range");
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case DIVISION_BY_ZERO:
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runtime_panicstring ("integer divide by zero");
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case GO_NIL:
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/* This one is a throw, rather than a panic. Set throwing to
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not dump full stacks. */
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runtime_g()->m->throwing = -1;
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runtime_throw ("go of nil func value");
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case SHIFT_BY_NEGATIVE:
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runtime_panicstring ("negative shift amount");
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default:
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runtime_panicstring ("unknown runtime error");
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}
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}
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