forked from OSchip/llvm-project
41 lines
1.4 KiB
C
41 lines
1.4 KiB
C
//===-- aeabi_div0.c - ARM Runtime ABI support routines for compiler-rt ---===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements the division by zero helper routines as specified by the
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// Run-time ABI for the ARM Architecture.
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//
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//===----------------------------------------------------------------------===//
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// RTABI 4.3.2 - Division by zero
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//
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// The *div0 functions:
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// - Return the value passed to them as a parameter
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// - Or, return a fixed value defined by the execution environment (such as 0)
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// - Or, raise a signal (often SIGFPE) or throw an exception, and do not return
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//
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// An application may provide its own implementations of the *div0 functions to
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// for a particular behaviour from the *div and *divmod functions called out of
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// line.
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#include "../int_lib.h"
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// provide an unused declaration to pacify pendantic compilation
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extern unsigned char declaration;
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#if defined(__ARM_EABI__)
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AEABI_RTABI int __attribute__((weak)) __attribute__((visibility("hidden")))
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__aeabi_idiv0(int return_value) {
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return return_value;
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}
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AEABI_RTABI long long __attribute__((weak))
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__attribute__((visibility("hidden"))) __aeabi_ldiv0(long long return_value) {
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return return_value;
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}
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#endif
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