I need to define a struct in wireshark,so i create a file named performance.h
in wireshark main directory,
//performance.h
struct pefroamce_s{
XXXXXXXX
guint index;
}performance;
extern performance * performance_test;
then i define the performance_test in file wiretap/libpcap.c, then i want to
use the pointer in epan/dissectors/packet-ieee80211.c
//epan/dissectors/packet-ieee80211.c
performance_test->index=0;
it came up with an error:undefined reference to 'performance_test'
what should i do to create a struct and use it in different files?___________________________________________________________________________
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