blob: 2aa8ec0c4679dd275cbcce777a277d32c911ce51 [file] [log] [blame]
Boyan Karatotevcce07a12023-02-09 15:55:34 +00001//===-- aeabi_memset.S - EABI memset implementation -----------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9#include "../assembly.h"
10
11// void __aeabi_memset(void *dest, size_t n, int c) { memset(dest, c, n); }
12// void __aeabi_memclr(void *dest, size_t n) { __aeabi_memset(dest, n, 0); }
13
14 .syntax unified
15 .p2align 2
16DEFINE_COMPILERRT_FUNCTION(__aeabi_memset)
17 mov r3, r1
18 mov r1, r2
19 mov r2, r3
20#ifdef USE_THUMB_1
21 push {r7, lr}
22 bl memset
23 pop {r7, pc}
24#else
25 b memset
26#endif
27END_COMPILERRT_FUNCTION(__aeabi_memset)
28
29DEFINE_AEABI_FUNCTION_ALIAS(__aeabi_memset4, __aeabi_memset)
30DEFINE_AEABI_FUNCTION_ALIAS(__aeabi_memset8, __aeabi_memset)
31
32 .p2align 2
33DEFINE_COMPILERRT_FUNCTION(__aeabi_memclr)
34 mov r2, r1
35 movs r1, #0
36#ifdef USE_THUMB_1
37 push {r7, lr}
38 bl memset
39 pop {r7, pc}
40#else
41 b memset
42#endif
43END_COMPILERRT_FUNCTION(__aeabi_memclr)
44
45DEFINE_AEABI_FUNCTION_ALIAS(__aeabi_memclr4, __aeabi_memclr)
46DEFINE_AEABI_FUNCTION_ALIAS(__aeabi_memclr8, __aeabi_memclr)
47
48NO_EXEC_STACK_DIRECTIVE
49