# Segmentation fault, Bro and a Debian **URL:** \ **Category:** Zeek\ **Created:** [April 29, 2003, 3:48pm UTC](https://community.zeek.org/t/segmentation-fault-bro-and-a-debian/365 "2003-04-29T15:48:43Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![Sylvain\_de\_Tilly1](https://avatars.discourse-cdn.com/v4/letter/s/8baadc/32.png) [@Sylvain\_de\_Tilly1](https://community.zeek.org/u/Sylvain_de_Tilly1)\ **Post date:** [April 29, 2003, 3:48pm UTC](https://community.zeek.org/t/segmentation-fault-bro-and-a-debian/365/1 "2003-04-29T15:48:43Z")
Hi, I try to use bro under Debian un-stable (today upgrade) and after some light modification, I was able to compile bro. But after that, I 've a segmentation fault... First, modifications : 1- I've some gcc 3.2.3 problem which looks like : > g++ -o bif\_parse.o -c bif\_parse.cc > builtin-func.y:63: 'vector' is used as a type, but is not defined as a type. > builtin-func.y: In function `int yyparse()': > builtin-func.y:151: `args' undeclared (first use this function) > builtin-func.y:151: (Each undeclared identifier is reported only once for each >    function it appears in.) > make: \*\*\* [bif\_parse.o] Error 1 I solve them by added "using namespace std;" just after the include headers. Same things with Type.h and Anon.h 2- The "yy\_current\_buffer" (line 474) not declare... I change "if (    yy\_current\_buffer )" it by "if ( YY\_CURRENT\_BUFFER )" and the    compilation continue. 3- I replace '#include \' by '#include \' because,    hash\_map wasn't founded. This work fine but added a warning like that: > /usr/include/c++/3.2/backward/backward\_warning.h:32:2: warning: > #warning This file includes at least one deprecated or antiquated > header. Please consider using one of the 32 headers found in section > 17.4.1.2 of the C++ standard. Examples include substituting the \ > header for the \ header for C++ includes, or \ instead of > the deprecated header \. To disable this warning use > -Wno-deprecated. 4- The function isspace wasn't founded too in Debug.cc, so I added    "#include \" 5- The DebugCmds.cc file generate a problem too : > g++ -I. -Ilibedit -O -Ilinux-include -c DebugCmds.cc > DebugCmds.cc: In function `int find\_all\_matching\_cmds(const std::string&, const >    char\*\*)': > DebugCmds.cc:164: invalid conversion from `const char*' to `unsigned int' > DebugCmds.cc:164: initializing argument 1 of `int std::basic\_string\<\_CharT, >    \_Traits, \_Alloc\>::compare(\_Alloc::size\_type, \_Alloc::size\_type, const >    \_CharT\*) const [with \_CharT = char, \_Traits = std::char\_traits\, \_Alloc >    = std::allocator\]' > DebugCmds.cc:164: invalid conversion from `unsigned int' to `const char\*' > DebugCmds.cc:164: initializing argument 3 of `int std::basic\_string\<\_CharT, >    \_Traits, \_Alloc\>::compare(\_Alloc::size\_type, \_Alloc::size\_type, const >    \_CharT\*) const [with \_CharT = char, \_Traits = std::char\_traits\, \_Alloc >    = std::allocator\]' > make: \*\*\* [DebugCmds.o] Error 1 I just change "if ( prefix.compare(curr\_name, 0, arglen ) )" by "if ( prefix.compare(arglen, 0, curr\_name ) )" 6- A classical link problem with bro compilation under Linux, solve by    replacing: "-lresolv" by "/usr/lib/resolv.a" in the Makefile. After that, the compilation go to the end but, when I compile bro with the -g flag and run gdb, I could see that: > (gdb) r -i eth0 > Starting program: /usr/local/src/bro-pub-0.8a20/bro -i eth0 > > Program received signal SIGSEGV, Segmentation fault. > 0x401b3364 in strcmp () from /lib/libc.so.6 > (gdb) bt > #0 0x401b3364 in strcmp () from /lib/libc.so.6 > #1 0x0804db83 in streq(char const\*, char const\*) (s1=0x0, s2=0x0) >     at util.cc:54 > #2 0x0809e5c9 in BroObj::SetLocationInfo(Location const\*, Location const\*) ( >     this=0x812ffb8, start=0xbfffe24c, end=0xbfffe24c) at Obj.cc:99 > #3 0x0805c6ff in Attr (this=0x812ffb8, t=ATTR\_OPTIONAL, e=0x0) at Attr.cc:42 > #4 0x0805070e in yyparse() () at parse.y:868 > #5 0x0804cb93 in main (argc=135439840, argv=0xbffffdd4) at main.cc:328 > (gdb) p start\_location -\> first\_line > $1 = 137 > (gdb) p start\_location -\> last\_line > $2 = 137 I know that I've done too much modification from original sources... But via some fprintf, I discover that, in the previous call to this function, the Locations was in the bro.init file. Does anybody have an idea ? Thanks for all. Regards, ---
**Author:** ![system](https://canada1.discourse-cdn.com/flex011/uploads/zeek/original/1X/f09d732bc2cc7c7cc7e35db67cf4e1d5233ce7a7.png) [@system](https://community.zeek.org/u/system)\ **Post date:** [May 6, 2022, 3:36pm UTC](https://community.zeek.org/t/segmentation-fault-bro-and-a-debian/365/2 "2022-05-06T15:36:44Z")