I have a application in C programming which uses jansson library(json library written in C). I'm trying to view value of json_t object in gdb but it just prints
(gdb) p jmsg
$20 = (json_t *) 0x69c350
(gdb) p *jmsg
$21 = {type = JSON_OBJECT, refcount = 1}
How is it possible to view the value of json_t in gdb.?
When in GDB, you can make function calls directly. Jansson library has a json_dumps(json_t *, int flags) API that returns a char* string of the json_t object.
So while in GDB, just simply do:
(gdb) call json_dumps(obj, 0)
GDB will then print the string output of your json object.
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.