dd931d9b48
Reviewed-on: https://go-review.googlesource.com/136435 gotools/: * Makefile.am (mostlyclean-local): Run chmod on check-go-dir to make sure it is writable. (check-go-tools): Likewise. (check-vet): Copy internal/objabi to check-vet-dir. * Makefile.in: Rebuild. From-SVN: r264546
113 lines
3.2 KiB
C
113 lines
3.2 KiB
C
/* go-runtime-error.c -- Go runtime error.
|
|
|
|
Copyright 2010 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. */
|
|
|
|
#include "runtime.h"
|
|
|
|
/* The compiler generates calls to this function. This enum values
|
|
are known to the compiler and used by compiled code. Any change
|
|
here must be reflected in the compiler. */
|
|
|
|
enum
|
|
{
|
|
/* Slice index out of bounds: negative or larger than the length of
|
|
the slice. */
|
|
SLICE_INDEX_OUT_OF_BOUNDS = 0,
|
|
|
|
/* Array index out of bounds. */
|
|
ARRAY_INDEX_OUT_OF_BOUNDS = 1,
|
|
|
|
/* String index out of bounds. */
|
|
STRING_INDEX_OUT_OF_BOUNDS = 2,
|
|
|
|
/* Slice slice out of bounds: negative or larger than the length of
|
|
the slice or high bound less than low bound. */
|
|
SLICE_SLICE_OUT_OF_BOUNDS = 3,
|
|
|
|
/* Array slice out of bounds. */
|
|
ARRAY_SLICE_OUT_OF_BOUNDS = 4,
|
|
|
|
/* String slice out of bounds. */
|
|
STRING_SLICE_OUT_OF_BOUNDS = 5,
|
|
|
|
/* Dereference of nil pointer. This is used when there is a
|
|
dereference of a pointer to a very large struct or array, to
|
|
ensure that a gigantic array is not used a proxy to access random
|
|
memory locations. */
|
|
NIL_DEREFERENCE = 6,
|
|
|
|
/* Slice length or capacity out of bounds in make: negative or
|
|
overflow or length greater than capacity. */
|
|
MAKE_SLICE_OUT_OF_BOUNDS = 7,
|
|
|
|
/* Map capacity out of bounds in make: negative or overflow. */
|
|
MAKE_MAP_OUT_OF_BOUNDS = 8,
|
|
|
|
/* Channel capacity out of bounds in make: negative or overflow. */
|
|
MAKE_CHAN_OUT_OF_BOUNDS = 9,
|
|
|
|
/* Integer division by zero. */
|
|
DIVISION_BY_ZERO = 10,
|
|
|
|
/* Go statement with nil function. */
|
|
GO_NIL = 11
|
|
};
|
|
|
|
extern void __go_runtime_error (int32) __attribute__ ((noreturn));
|
|
|
|
void
|
|
__go_runtime_error (int32 i)
|
|
{
|
|
struct funcfileline_return fileline;
|
|
bool in_runtime;
|
|
|
|
fileline = runtime_funcfileline ((uintptr) runtime_getcallerpc(), 0);
|
|
in_runtime = (fileline.retfn.len > 0
|
|
&& (__builtin_strncmp ((const char *) fileline.retfn.str,
|
|
"runtime.", 8)
|
|
== 0));
|
|
|
|
switch (i)
|
|
{
|
|
case SLICE_INDEX_OUT_OF_BOUNDS:
|
|
case ARRAY_INDEX_OUT_OF_BOUNDS:
|
|
case STRING_INDEX_OUT_OF_BOUNDS:
|
|
if (in_runtime)
|
|
runtime_throw ("index out of range");
|
|
runtime_panicstring ("index out of range");
|
|
|
|
case SLICE_SLICE_OUT_OF_BOUNDS:
|
|
case ARRAY_SLICE_OUT_OF_BOUNDS:
|
|
case STRING_SLICE_OUT_OF_BOUNDS:
|
|
if (in_runtime)
|
|
runtime_throw ("slice bounds out of range");
|
|
runtime_panicstring ("slice bounds out of range");
|
|
|
|
case NIL_DEREFERENCE:
|
|
runtime_panicstring ("nil pointer dereference");
|
|
|
|
case MAKE_SLICE_OUT_OF_BOUNDS:
|
|
runtime_panicstring ("make slice len or cap out of range");
|
|
|
|
case MAKE_MAP_OUT_OF_BOUNDS:
|
|
runtime_panicstring ("make map len out of range");
|
|
|
|
case MAKE_CHAN_OUT_OF_BOUNDS:
|
|
runtime_panicstring ("make chan len out of range");
|
|
|
|
case DIVISION_BY_ZERO:
|
|
runtime_panicstring ("integer divide by zero");
|
|
|
|
case GO_NIL:
|
|
/* This one is a throw, rather than a panic. Set throwing to
|
|
not dump full stacks. */
|
|
runtime_g()->m->throwing = -1;
|
|
runtime_throw ("go of nil func value");
|
|
|
|
default:
|
|
runtime_panicstring ("unknown runtime error");
|
|
}
|
|
}
|