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Diffstat (limited to 'contrib/compiler-rt/lib/builtins/arm/aeabi_div0.c')
-rw-r--r-- | contrib/compiler-rt/lib/builtins/arm/aeabi_div0.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/contrib/compiler-rt/lib/builtins/arm/aeabi_div0.c b/contrib/compiler-rt/lib/builtins/arm/aeabi_div0.c new file mode 100644 index 000000000000..ccc95fa5c12e --- /dev/null +++ b/contrib/compiler-rt/lib/builtins/arm/aeabi_div0.c @@ -0,0 +1,43 @@ +/* ===-- 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. + */ + +/* provide an unused declaration to pacify pendantic compilation */ +extern unsigned char declaration; + +#if defined(__ARM_EABI__) +int __attribute__((weak)) __attribute__((visibility("hidden"))) +__aeabi_idiv0(int return_value) { + return return_value; +} + +long long __attribute__((weak)) __attribute__((visibility("hidden"))) +__aeabi_ldiv0(long long return_value) { + return return_value; +} +#endif + |