| Title: | Digital Ladebug debugger |
| Moderator: | TLE::LUCIA |
| Created: | Fri Feb 28 1992 |
| Last Modified: | Fri Jun 06 1997 |
| Last Successful Update: | Fri Jun 06 1997 |
| Number of topics: | 969 |
| Total number of notes: | 3959 |
Sorry -- I've found more problems with the new single-class approach:
Using shared objects with ladebug 4.0-33 and C++ V5.6-121, you cannot
type "print b.mf2()" while in main() -- ladebug gives the error "No
class object...". Note that the problem goes away when you compile
non-shared.
The commands to use are:
cxx -g -O0 -shared -rpath . -o x_0041a.so x_0041a.cxx
cxx -g -O0 x_0041a.so x_0041b.cxx
ladebug a.out
stop in main ; run ; p b.mf2()
The sources are:
-------------------------
// x_0041.h
#include "stdio.h"
extern int counter;
typedef class BASE { public:
int bi;
/*ctr*/ BASE() : bi(counter++) {}
void mf1();
void mf2();
} *BASE_ptr;
------------------------
// x_0041a.cxx
#include "x_0041.h"
static int i = (counter=101); // reset counter
void BASE::mf1() {
printf("BASE::mf1\n");
mf2();
}
------------------------
#include "x_0041.h"
int counter;
static int i = (counter=1); // reset counter
BASE b;
void BASE::mf2() {
printf("BASE::mf2\n");
}
int main()
{
b.mf1();
return 0;
}
------------------------
The output from ladebug:
Welcome to the Ladebug Debugger Version 4.0-33
------------------
object file name: a.out
Reading symbolic information ...done
(ladebug) stop in main ; run ; p b.mf2()
[#1: stop in int main(void) ]
[1] stopped at [int main(void):14 0x120001cd8]
14 b.mf1();
No class object for member function call which requires one
Error: no value for b.mf2()
- Matt
| T.R | Title | User | Personal Name | Date | Lines |
|---|---|---|---|---|---|
| 892.1 | Being looked at.... | TLE::MERRITT | Steve Merritt, Ladebug Team | Mon Mar 24 1997 09:55 | 5 |
This is being looked at now. -Steve | |||||
| 892.2 | Fixed | TLE::MERRITT | Steve Merritt, Ladebug Team | Fri Apr 18 1997 14:31 | 22 |
This is fixed in 4.0-36
alime.zko.dec.com> cxx -g -O0 -shared -rpath . -o x_0041a.so x_0041a.cxx
ld:
Warning: Unresolved:
counter
BASE::mf2(void)
alime.zko.dec.com> cxx -g -O0 x_0041a.so x_0041b.cxx -o 0041
alime.zko.dec.com> $V40P/ladebug 0041
Welcome to the Ladebug Debugger Version 4.0-36
------------------
object file name: 0041
Reading symbolic information ...done
(ladebug) stop in main
[#1: stop in int main(void) ]
(ladebug) run
[1] stopped at [int main(void):13 0x120002508]
13 b.mf1();
(ladebug) print b.mf2()
BASE::mf2
void
| |||||