📄 test.c
字号:
#include <string.h>#include <stdio.h>#include <sys/ioctl.h>#include <unistd.h>#include <errno.h>#include <fcntl.h>#include <sys/mman.h> #include "dhahelper.h"int main(int argc, char *argv[]){ int fd; int ret; fd = open("/dev/dhahelper", O_RDWR); ioctl(fd, DHAHELPER_GET_VERSION, &ret); printf("api version: %d\n", ret); if (ret != API_VERSION) printf("incompatible api!\n"); { dhahelper_memory_t mem; mem.operation = MEMORY_OP_MAP; //mem.start = 0xe0000000; mem.start = 0xe4000008; mem.offset = 0; mem.size = 0x4000; mem.ret = 0; ret = ioctl(fd, DHAHELPER_MEMORY, &mem); printf("ret: %s\n", strerror(errno)); mem.ret = (int)mmap(NULL, (size_t)mem.size, PROT_READ, MAP_SHARED, fd, (off_t)0); printf("allocated to %x\n", mem.ret); if (argc > 1) if (mem.ret != 0) { int i; for (i = 0; i < 256; i++) printf("[%x] ", *(int *)(mem.ret+i)); printf("\n"); } munmap((void *)mem.ret, mem.size); mem.operation = MEMORY_OP_UNMAP; mem.start = mem.ret; ioctl(fd, DHAHELPER_MEMORY, &mem); } return(0);}
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -