xinyangli
2824efad33
NJU-ProjectN/nemu eb63cf3568dbf4e0c3c6ef462e6ec685550fabbc Merge pull request #76 from rijuyuezhu/master
69 lines
1.7 KiB
C
69 lines
1.7 KiB
C
/***************************************************************************************
|
|
* Copyright (c) 2014-2022 Zihao Yu, Nanjing University
|
|
*
|
|
* NEMU is licensed under Mulan PSL v2.
|
|
* You can use this software according to the terms and conditions of the Mulan PSL v2.
|
|
* You may obtain a copy of Mulan PSL v2 at:
|
|
* http://license.coscl.org.cn/MulanPSL2
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
|
|
* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
|
|
* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
|
|
*
|
|
* See the Mulan PSL v2 for more details.
|
|
***************************************************************************************/
|
|
|
|
#include <stdint.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <time.h>
|
|
#include <assert.h>
|
|
#include <string.h>
|
|
|
|
// this should be enough
|
|
static char buf[65536] = {};
|
|
static char code_buf[65536 + 128] = {}; // a little larger than `buf`
|
|
static char *code_format =
|
|
"#include <stdio.h>\n"
|
|
"int main() { "
|
|
" unsigned result = %s; "
|
|
" printf(\"%%u\", result); "
|
|
" return 0; "
|
|
"}";
|
|
|
|
static void gen_rand_expr() {
|
|
buf[0] = '\0';
|
|
}
|
|
|
|
int main(int argc, char *argv[]) {
|
|
int seed = time(0);
|
|
srand(seed);
|
|
int loop = 1;
|
|
if (argc > 1) {
|
|
sscanf(argv[1], "%d", &loop);
|
|
}
|
|
int i;
|
|
for (i = 0; i < loop; i ++) {
|
|
gen_rand_expr();
|
|
|
|
sprintf(code_buf, code_format, buf);
|
|
|
|
FILE *fp = fopen("/tmp/.code.c", "w");
|
|
assert(fp != NULL);
|
|
fputs(code_buf, fp);
|
|
fclose(fp);
|
|
|
|
int ret = system("gcc /tmp/.code.c -o /tmp/.expr");
|
|
if (ret != 0) continue;
|
|
|
|
fp = popen("/tmp/.expr", "r");
|
|
assert(fp != NULL);
|
|
|
|
int result;
|
|
ret = fscanf(fp, "%d", &result);
|
|
pclose(fp);
|
|
|
|
printf("%u %s\n", result, buf);
|
|
}
|
|
return 0;
|
|
}
|