blob: dc3031326e37dd87274363d9acdf053a15b14398 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
|
/* ===-- aeabi_div0.c - ARM Runtime ABI support routines for compiler-rt ---===
*
* The LLVM Compiler Infrastructure
*
* This file is dual licensed under the MIT and the University of Illinois Open
* Source Licenses. See LICENSE.TXT for details.
*
* ===----------------------------------------------------------------------===
*
* This file implements the division by zero helper routines as specified by the
* Run-time ABI for the ARM Architecture.
*
* ===----------------------------------------------------------------------===
*/
/*
* RTABI 4.3.2 - Division by zero
*
* The *div0 functions:
* - Return the value passed to them as a parameter
* - Or, return a fixed value defined by the execution environment (such as 0)
* - Or, raise a signal (often SIGFPE) or throw an exception, and do not return
*
* An application may provide its own implementations of the *div0 functions to
* for a particular behaviour from the *div and *divmod functions called out of
* line.
*/
#include "../int_lib.h"
/* provide an unused declaration to pacify pendantic compilation */
extern unsigned char declaration;
#if defined(__ARM_EABI__)
AEABI_RTABI int __attribute__((weak)) __attribute__((visibility("hidden")))
__aeabi_idiv0(int return_value) {
return return_value;
}
AEABI_RTABI long long __attribute__((weak)) __attribute__((visibility("hidden")))
__aeabi_ldiv0(long long return_value) {
return return_value;
}
#endif
|
