Breakpoint 4 at 0x3b19690f50 (gdb) n 525 strftime (buf,MAX_STRING_LEN,"%d/%b/%Y:%H:%M:%s",dummy_time); (gdb) n Breakpoint 4,0x0000003b19690f50 in strftime () from /lib64/libc.so.6 (gdb) n Single stepPing until exit from function strftime,which has no line number information. 0x0000003b19690f70 in strftime_l () from /lib64/libc.so.6 (gdb) n Single stepPing until exit from function strftime_l,which has no line number information. Program received signal SIGSEGV,Segmentation fault. 0x0000003b19690f8b in strftime_l () from /lib64/libc.so.6
实际上在代码中调用函数strftime().但我不知道为什么它会在/lib64/libc.so.6中到达strftime_l().
这个问题不会出现在UNIX中.请帮忙.代码是
static voID speed_Hack_libs(voID){ time_t dummy_time_t = time(NulL); struct tm *dummy_time = localtime (&dummy_time_t); struct tm *other_dummy_time = gmtime (&dummy_time_t); char buf[MAX_STRING_LEN]; strftime (buf,dummy_time);}解决方法
struct tm *dummy_time = localtime (&dummy_time_t);struct tm *other_dummy_time = gmtime (&dummy_time_t);
这不会奏效.从man page:
@H_404_31@The localtime()
function converts the calendar time timep to broken-down time representation,expressed relative to the user’s specifIEd time-zone. … The return value points to a statically allocated struct which might be overwritten by
subsequent calls to any of the date and time functions.
The gmtime()
function converts the calendar time timep to broken-down time representation,expressed in Coordinated Universal Time (UTC). It
may return NulL when the year does not fit into an integer. The return value points to a statically allocated struct which might be overwritten by subsequent calls to any of the date and time functions.
因此,* dummy_time可能会在您使用它时被覆盖,并包含不可预测的垃圾.您应该将数据复制到缓冲区,如下所示:
struct tm dummy_time ;memcpy(&dummy_time,localtime (&dummy_time_t),sizeof(struct tm));
虽然我不确定这怎么会导致SIGSEGV(可能是获得月份名称等等 – 检查问题是否仍然存在于LC_ALL = C),你必须先解决这个问题才能继续.另外,检查(在调试器中)* dummy_time的内容.
总结以上是内存溢出为你收集整理的linux – strftime_l lib64 / libc.so.6中的SIGSEGV分段错误全部内容,希望文章能够帮你解决linux – strftime_l lib64 / libc.so.6中的SIGSEGV分段错误所遇到的程序开发问题。
如果觉得内存溢出网站内容还不错,欢迎将内存溢出网站推荐给程序员好友。
欢迎分享,转载请注明来源:内存溢出
评论列表(0条)