aeabi_memset.S
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//===-- 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