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From: liuyond <ia...@gm...> - 2011-02-26 06:23:55
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On 02/25/2011 07:46 PM, Bob Rossi wrote: > Hi Justin, > > The issue is that you are trying to read from the terminal > that cgdb is displaying itself on. > > You have two options: > > - Use the tty window, > http://cgdb.sourceforge.net/docs/cgdb-no-split.html#TTY-Window > which is kind of awkward and hard to use or > > - Run cgdb in a different termainal than the program you > are debugging. That involves starting your program in > one terminal and then attaching cgdb/gdb to that program > in another terminal. This is exactly how i debug cgdb > itself. Considering cgdb needs a terminal when it runs. > > Hope that's helpful. > > Thanks, > Bob > > On Fri, Feb 25, 2011 at 01:57:56PM +0800, liuyond wrote: >> Hello, >> >> I am a new user to cgdb and I like it very mush. However, when I use >> cgdb to debug a simple program today, it failed to return when my >> program called scanf to get some information. my program are very >> simple, it just read a integer from the standard input and then output >> it. the source code is as follow: >> >> 1 #include<stdio.h> >> 2 >> 3 int main(void) >> 4 { >> 5 int n; >> 6 >> 7 scanf("%d",&n); >> 8 >> 9 printf("the number you input is: %d\n", n); >> 10 >> 11 return 0; >> 12 } >> >> I set a breakpoint on line 7, and then type in "run" and "next" command >> in the gdb window, and then i can input. However it don't return no >> matter what I type in even when I type in ctrl+d. when I use gdb to >> debug this program, there is such problem. I don't if there is something >> wrong with cgdb or something wrong with my system. other more >> information about my system is: >> >> CGDB version: 0.6.5 >> gdb version: GNU gdb (GDB) 7.1-ubuntu >> gcc version: 4.4.3 (Ubuntu 4.4.3-4ubuntu5) >> system: ubuntu-10.04 >> kernel: 2.6.36 >> >> Thanks& Regards >> >> --justin >> >> >> ------------------------------------------------------------------------------ >> Free Software Download: Index, Search& Analyze Logs and other IT data in >> Real-Time with Splunk. Collect, index and harness all the fast moving IT data >> generated by your applications, servers and devices whether physical, virtual >> or in the cloud. Deliver compliance at lower cost and gain new business >> insights. http://p.sf.net/sfu/splunk-dev2dev >> _______________________________________________ >> Cgdb-devel mailing list >> Cgd...@li... >> https://lists.sourceforge.net/lists/listinfo/cgdb-devel > ------------------------------------------------------------------------------ > Free Software Download: Index, Search& Analyze Logs and other IT data in > Real-Time with Splunk. Collect, index and harness all the fast moving IT data > generated by your applications, servers and devices whether physical, virtual > or in the cloud. Deliver compliance at lower cost and gain new business > insights. http://p.sf.net/sfu/splunk-dev2dev > _______________________________________________ > Cgdb-devel mailing list > Cgd...@li... > https://lists.sourceforge.net/lists/listinfo/cgdb-devel Hi Bob, Thanks for your reply, and now I how to getting input while using cgdb, and thanks for your suggestion on debuging too :-) Thanks, justin |
