diff options
Diffstat (limited to 'lib/compiler-rt/builtins/arm/aeabi_memset.S')
| -rw-r--r-- | lib/compiler-rt/builtins/arm/aeabi_memset.S | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/lib/compiler-rt/builtins/arm/aeabi_memset.S b/lib/compiler-rt/builtins/arm/aeabi_memset.S new file mode 100644 index 0000000..2aa8ec0 --- /dev/null +++ b/lib/compiler-rt/builtins/arm/aeabi_memset.S @@ -0,0 +1,49 @@ +//===-- aeabi_memset.S - EABI memset implementation -----------------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +#include "../assembly.h" + +// void __aeabi_memset(void *dest, size_t n, int c) { memset(dest, c, n); } +// void __aeabi_memclr(void *dest, size_t n) { __aeabi_memset(dest, n, 0); } + + .syntax unified + .p2align 2 +DEFINE_COMPILERRT_FUNCTION(__aeabi_memset) + mov r3, r1 + mov r1, r2 + mov r2, r3 +#ifdef USE_THUMB_1 + push {r7, lr} + bl memset + pop {r7, pc} +#else + b memset +#endif +END_COMPILERRT_FUNCTION(__aeabi_memset) + +DEFINE_AEABI_FUNCTION_ALIAS(__aeabi_memset4, __aeabi_memset) +DEFINE_AEABI_FUNCTION_ALIAS(__aeabi_memset8, __aeabi_memset) + + .p2align 2 +DEFINE_COMPILERRT_FUNCTION(__aeabi_memclr) + mov r2, r1 + movs r1, #0 +#ifdef USE_THUMB_1 + push {r7, lr} + bl memset + pop {r7, pc} +#else + b memset +#endif +END_COMPILERRT_FUNCTION(__aeabi_memclr) + +DEFINE_AEABI_FUNCTION_ALIAS(__aeabi_memclr4, __aeabi_memclr) +DEFINE_AEABI_FUNCTION_ALIAS(__aeabi_memclr8, __aeabi_memclr) + +NO_EXEC_STACK_DIRECTIVE + |