[R] Debugging with gdb

[Lee, Han]

I tried to run gdb in linux with emacs
But could not even run a simple example in the writing extensions
tutorial.
The execution history is as follows.
Gdb worked fine for other debugging such as C++ codes.

Thanks 
Han



I started R at echo of emacs by typing 
(also tried other methods mentioned in the tutorial both in emacs and
xterm.)
M-x gdb    ==> R -d gdb

(gdb) run
Starting program: /home/gcmio/local.20060808/lib/R/bin/exec/R -cd
/home/a409791/R/R-Test/ -fullname
[Thread debugging using libthread_db enabled]
[New Thread -1218514176 (LWP 11086)]
WARNING: unknown option '-cd'

ARGUMENT '/home/a409791/R/R-Test/' __ignored__

WARNING: unknown option '-fullname'


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[Previously saved workspace restored]

>
Program received signal SIGINT, Interrupt.
[Switching to Thread -1218514176 (LWP 11086)]
0x00366c58 in ___newselect_nocancel () from /lib/tls/libc.so.6
(gdb) b do_get
Breakpoint 1 at 0x80ca4f5: file envir.c, line 1615.
(gdb) signal 0
Continuing with no signal.

> x <- 1
> get("x")

Breakpoint 1, do_get (call=0x9443878, op=0x934bd54, args=0x9416408,
rho=0x9417a54)
    at envir.c:1615
1615	    checkArity(op, args);
(gdb) p $1
History has not yet reached $1.
(gdb) p R_PV(x)
No symbol "x" in current context.
(gdb)