| // |
| // Licensed to the Apache Software Foundation (ASF) under one or more |
| // contributor license agreements. See the NOTICE file distributed with |
| // this work for additional information regarding copyright ownership. |
| // The ASF licenses this file to You under the Apache License, Version 2.0 |
| // (the "License"); you may not use this file except in compliance with |
| // the License. You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| // |
| .text |
| .align 4 |
| |
| // port_memcpy_asm(void* dst, const void* src, size_t size, |
| // void** prestart_addr, void* memcpyaddr); |
| // 1st arg (EBP + 8) - dest |
| // 2nd arg (EBP + 12) - src |
| // 3rd arg (EBP + 16) - len |
| // 4th arg (EBP + 20) - address of restart_address storage |
| // 5th arg (EBP + 24) - address of memcpy - not used on x86 |
| |
| .globl port_memcpy_asm |
| .type port_memcpy_asm, @function |
| port_memcpy_asm: |
| pushl %ebp |
| movl %esp, %ebp |
| subl $20, %esp |
| |
| movl 20(%ebp), %eax |
| movl $preret, (%eax) |
| |
| movl 8(%ebp), %eax |
| movl %eax, (%esp) |
| movl 12(%ebp), %eax |
| movl %eax, 4(%esp) |
| movl 16(%ebp), %eax |
| movl %eax, 8(%esp) |
| call memcpy |
| |
| preret: |
| addl $20, %esp |
| popl %ebp |
| ret |
