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author | Ben Cheng <bccheng@google.com> | 2014-03-25 22:37:19 -0700 |
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committer | Ben Cheng <bccheng@google.com> | 2014-03-25 22:37:19 -0700 |
commit | 1bc5aee63eb72b341f506ad058502cd0361f0d10 (patch) | |
tree | c607e8252f3405424ff15bc2d00aa38dadbb2518 /gcc-4.9/libgo/runtime/go-runtime-error.c | |
parent | 283a0bf58fcf333c58a2a92c3ebbc41fb9eb1fdb (diff) | |
download | toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.tar.gz toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.tar.bz2 toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.zip |
Initial checkin of GCC 4.9.0 from trunk (r208799).
Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba
Diffstat (limited to 'gcc-4.9/libgo/runtime/go-runtime-error.c')
-rw-r--r-- | gcc-4.9/libgo/runtime/go-runtime-error.c | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/gcc-4.9/libgo/runtime/go-runtime-error.c b/gcc-4.9/libgo/runtime/go-runtime-error.c new file mode 100644 index 000000000..f5ab4f919 --- /dev/null +++ b/gcc-4.9/libgo/runtime/go-runtime-error.c @@ -0,0 +1,90 @@ +/* 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 +}; + +extern void __go_runtime_error () __attribute__ ((noreturn)); + +void +__go_runtime_error (int32 i) +{ + switch (i) + { + case SLICE_INDEX_OUT_OF_BOUNDS: + case ARRAY_INDEX_OUT_OF_BOUNDS: + case STRING_INDEX_OUT_OF_BOUNDS: + runtime_panicstring ("index out of range"); + + case SLICE_SLICE_OUT_OF_BOUNDS: + case ARRAY_SLICE_OUT_OF_BOUNDS: + case STRING_SLICE_OUT_OF_BOUNDS: + 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"); + + default: + runtime_panicstring ("unknown runtime error"); + } +} |