[root@laosong ~]# cat /etc/redhat-release 
CentOS Linux release 7.3.1611 (Core) 

[root@laosong ~]# yum list ctags* cscope*
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
Installed Packages
cscope.x86_64 15.8-9.el7 @base
ctags.x86_64 5.8-13.el7 @base
ctags-etags.x86_64 5.8-13.el7 @base

[root@laosong src]# pwd
/root/OpenSource/bitcoin-master/src
[root@laosong src]# 
[root@laosong src]# ctags -R
[root@laosong src]# 
[root@laosong src]# cscope -Rb
[root@laosong src]# 
[root@laosong src]# ll -h tags cscope.out
-rw-r--r--. 1 root root 4.9M Aug 14 15:16 cscope.out
-rw-r--r--. 1 root root 1.2M Aug 14 15:15 tags
[root@laosong src]# 
[root@laosong src]# file tags
tags: Exuberant Ctags tag file, ASCII text, with very long lines
[root@laosong src]# 
[root@laosong src]# file cscope.out
cscope.out: cscope reference data version 15
[root@laosong src]# 

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C symbol: main

 File Function Line
0 bitcoin-cli.cpp main 312 int main(int argc, char * argv[])
1 bitcoin-tx.cpp main 678 int main(int argc, char * argv[])
2 bitcoind.cpp main 183 int main(int argc, char * argv[])

......
int main(int argc, char* argv[])
{
 SetupEnvironment();
......

......
void SetupEnvironment()
{
 // On most POSIX systems (e.g. Linux, but not BSD) the environment's locale
 // may be invalid, in which case the "C" locale is used as fallback.
......

Functions called by this function: main

 File Function Line
0 bitcoin-cli.cpp SetupEnvironment 314 SetupEnvironment();
1 bitcoin-cli.cpp SetupNetworking 315 if (!SetupNetworking()) {
2 bitcoin-cli.cpp fprintf 316 fprintf(stderr, "Error: Initializing networking failed\n");
3 bitcoin-cli.cpp AppInitRPC 321 if(!AppInitRPC(argc, argv))
4 bitcoin-cli.cpp catch 324 catch (const std::exception& e) {
5 bitcoin-cli.cpp PrintExceptionContinue 325 PrintExceptionContinue(&e, "AppInitRPC()");
6 bitcoin-cli.cpp catch 327 } catch (...) {
7 bitcoin-cli.cpp PrintExceptionContinue 328 PrintExceptionContinue(NULL, "AppInitRPC()");
8 bitcoin-cli.cpp CommandLineRPC 334 ret = CommandLineRPC(argc, argv);
9 bitcoin-cli.cpp catch 336 catch (const std::exception& e) {
a bitcoin-cli.cpp PrintExceptionContinue 337 PrintExceptionContinue(&e, "CommandLineRPC()");
b bitcoin-cli.cpp catch 338 } catch (...) {
c bitcoin-cli.cpp PrintExceptionContinue 339 PrintExceptionContinue(NULL, "CommandLineRPC()");
d bitcoin-tx.cpp SetupEnvironment 680 SetupEnvironment();
e bitcoin-tx.cpp AppInitRawTx 683 if(!AppInitRawTx(argc, argv))
f bitcoin-tx.cpp catch 686 catch (const std::exception& e) {
g bitcoin-tx.cpp PrintExceptionContinue 687 PrintExceptionContinue(&e, "AppInitRawTx()");

* Lines 1-18 of 27, 10 more - press the space bar to display more *
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