VxWorks动态加载.out文件
//Device.cpp
#include "other.h"
#ifdef __cplusplus
extern "C" {
#endif
?int initDevice(char *arg);
#ifdef __cplusplus
}
#endif
int initDevice(char *arg)
{
?printf("%s\n", arg);
}
生成的.out文件需對其使用如下命令
?chmod.exe a+rx Device.out
int dynLoadOut( )
{
?char szDeviceOutPath[128] = "/ata0a/App/Device.out";
?for (int j = 0; j < 3; j++)
?{
??int fdX = open (szDeviceOutPath, O_RDONLY, 0644);
??
??if (fdX == ERROR )
??{
???printf("openfile error:%s\n", szDeviceOutPath);
???taskDelay(1000);
???continue;
??}
??else
??{?
???MODULE_ID modID = loadModule (fdX, LOAD_ALL_SYMBOLS);
???close (fdX);
???if (modID == 0)
???{
????printf("loadModule error\n");
????return 1;
???}
???break;
??}
?}
?printf("loadModule ok\n");
?extern SYMTAB_ID sysSymTbl;
?FUNCPTR deviceEntry = 0;
?SYM_TYPE type;
?STATUS stus = symFindByName(sysSymTbl, "initDevice", (char**)&deviceEntry, &type);
?if (stus == ERROR)
?{
??printf("symFindByName error\n");
??return 1;
?}
?else
?{
??printf("deviceEntry = 0x%x, type = %d\n", (int)deviceEntry, (int)type);
??char szPara[128] = "have a test!"
??(*deviceEntry)(szPara);
?}
}
總結
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