4 * Copyright (c) 2000 - 2011 Samsung Electronics Co., Ltd. All rights reserved.
6 * Contact: Jayoun Lee <airjany@samsung.com>, Sewook Park <sewook7.park@samsung.com>, Jaeho Lee <jaeho81.lee@samsung.com>
8 * Licensed under the Apache License, Version 2.0 (the "License");
9 * you may not use this file except in compliance with the License.
10 * You may obtain a copy of the License at
12 * http://www.apache.org/licenses/LICENSE-2.0
14 * Unless required by applicable law or agreed to in writing, software
15 * distributed under the License is distributed on an "AS IS" BASIS,
16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17 * See the License for the specific language governing permissions and
18 * limitations under the License.
29 #include "appcore-internal.h"
31 #define GETSP() ({ unsigned int sp; asm volatile ("mov %0,sp " : "=r"(sp)); sp; })
33 #define PAGE_SIZE (1 << 12)
34 #define _ALIGN_UP(addr , size) (((addr)+((size)-1))&(~((size)-1)))
35 #define _ALIGN_DOWN(addr , size) ((addr)&(~((size)-1)))
36 #define PAGE_ALIGN(addr) _ALIGN_DOWN(addr, PAGE_SIZE)
40 #if sizeof(unsigned int) == sizeof(void*)
44 unsigned int stacktop;
49 sprintf(buf, "/proc/%d/maps", getpid());
50 file = fopen(buf, "r");
51 while (fgets(buf, BUF_SIZE, file) != NULL) {
52 if (strstr(buf, "[stack]")) {
60 sscanf(buf, "%x-", &stacktop);
62 ((void *)PAGE_ALIGN(stacktop), PAGE_ALIGN(sp) - stacktop,
64 perror("stack madvise fail");