編譯器錯誤：/tmp/ccyOgqYQ.o:(.eh_frame+0x12): undefined reference to `__gxx_personality_v0' collect2: ld returned 1 exit status
今天下午在編寫一個c程式檔案檔名：test.cpp, 檔案內容見附錄。使用gcc編譯的時候出現/tmp/ccyOgqYQ.o:(.eh_frame+0x12): undefined reference to `__gxx_personality_v0' collect2: ld returned 1 exit status的錯誤。採用c++編譯問題消失。在這次這個錯誤是由於檔名字尾引起的。我把test.cpp改為test.c後，然後再次使用gcc編譯，通過。具體的原因，有待進一步的研究。
附錄：test.cpp
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
u_int64_t gen64(char type, char data, int cid, int mid)
{
u_int64_t ret=0;
unsigned char tmp=0;
switch(type)
{
case 'P':
tmp = 0;
break;
case 'C':
tmp = 0x10;
break;
case 'N':
tmp = 0x20;
break;
case 'A':
tmp = 0x30;
break;
default:
fprintf(stderr, "gen64 type has problem./n");
}
switch(data)
{
case 'm':
tmp |= 0x00;
break;
case 's':
tmp |= 0x01;
break;
case 'a':
tmp |= 0x02;
break;
case 'p':
tmp |= 0x03;
break;
default:
fprintf(stderr, "gen64 data has problem./n");
}
ret |= ((u_int64_t)tmp << 56) + ((u_int64_t)(cid &&0xFFFF) << 32) + (u_int64_t)(mid & 0xFFFFFFFF);
return ret;
}
int main()
{
printf("p,m,1,1: %lu/n", gen64('P', 'm', 1, 1));
return 0;
}