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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
// ==++==
//
//
// ==--==
// ***********************************************************************
// File: crthelpers.S
//
// ***********************************************************************
#include "unixasmmacros.inc"
#include "asmconstants.h"
.syntax unified
.thumb
// JIT_MemSet/JIT_MemCpy
//
// It is IMPORANT that the exception handling code is able to find these guys
// on the stack, but to keep them from being tailcalled by VC++ we need to turn
// off optimization and it ends up being a wasteful implementation.
//
// Hence these assembly helpers.
//
//EXTERN_C void __stdcall JIT_MemSet(void* _dest, int c, size_t count)
LEAF_ENTRY JIT_MemSet, _TEXT
cmp r2, #0
it eq
bxeq lr
ldr r3, [r0]
b C_PLTFUNC(memset)
LEAF_END_MARKED JIT_MemSet, _TEXT
//EXTERN_C void __stdcall JIT_MemCpy(void* _dest, const void *_src, size_t count)
LEAF_ENTRY JIT_MemCpy, _TEXT
//
// It only requires 4 byte alignment
// and doesn't return a value
cmp r2, #0
it eq
bxeq lr
ldr r3, [r0]
ldr r3, [r1]
b C_PLTFUNC(memcpy)
LEAF_END_MARKED JIT_MemCpy, _TEXT
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