# 顯示共享鏈接庫信息 ## 例子 #include <hiredis/hiredis.h> int main(void) { char a[1026] = {0}; redisContext *c = NULL; void *reply = NULL; memset(a, 'a', (sizeof(a) - 1)); c = redisConnect("127.0.0.1", 6379); if (NULL != c) { reply = redisCommand(c, "set 1 %s", a); freeReplyObject(reply); reply = redisCommand(c, "get 1"); freeReplyObject(reply); redisFree(c); } return 0; } ## 技巧 使用"`info sharedlibrary regex`"命令可以顯示程序加載的共享鏈接庫信息，其中`regex`可以是正則表達式，意為顯示名字符合`regex`的共享鏈接庫。如果沒有`regex`，則列出所有的庫。以上面程序為例: (gdb) start Temporary breakpoint 1 at 0x109f0: file a.c, line 5. Starting program: /export/home/nan/a [Thread debugging using libthread_db enabled] [New Thread 1 (LWP 1)] [Switching to Thread 1 (LWP 1)] Temporary breakpoint 1, main () at a.c:5 5 char a[1026] = {0}; (gdb) info sharedlibrary From To Syms Read Shared Object Library 0xff3b44a0 0xff3e3490 Yes (*) /usr/lib/ld.so.1 0xff3325f0 0xff33d4b4 Yes /usr/local/lib/libhiredis.so.0.11 0xff3137f0 0xff31a9f4 Yes (*) /lib/libsocket.so.1 0xff215fd4 0xff28545c Yes (*) /lib/libnsl.so.1 0xff0a3a20 0xff14fedc Yes (*) /lib/libc.so.1 0xff320400 0xff3234c8 Yes (*) /platform/SUNW,UltraAX-i2/lib/libc_psr.so.1 (*): Shared library is missing debugging information. 可以看到列出所有加載的共享鏈接庫信息，帶“`*`”表示庫缺少調試信息。 另外也可以使用正則表達式： (gdb) i sharedlibrary hiredi* From To Syms Read Shared Object Library 0xff3325f0 0xff33d4b4 Yes /usr/local/lib/libhiredis.so.0.11 可以看到只列出了一個庫信息。 參見[gdb手冊](https://sourceware.org/gdb/current/onlinedocs/gdb/Files.html#index-shared-libraries). ## 貢獻者 nanxiao