gnu-win32 B19: gdb and template

gnu-win32 B19: gdb and template

[Xiaomao Xiao]

Hi there:

I recently tried to debug a c++ program with templates on my Windows NT box
installed with gnu-win32 B19.  I found that I cannot step into the
implementation of a template.  I prepared a simple example here to show what I
mean.  Any advice is appreciated.

==================================
#include <stream.h>

template <class T>
void Print(const T & a)
{
  cout << a << endl;
}

void Print1(const float & a)
{
  cout << a << endl;
}

void Print1(const double & a)
{
  cout << a << endl;
}

main()
{
  Print(0.5);
  Print(0.4f);
  Print1(0.5);
  Print1(0.4f);
}
==================================

I used this command to compile the program: gcc -gstabs+ test.cpp -lstdc++.

When I tried to debug the program with gdb (4.16-B19), I could not step into the 
template function Print().  However I can step into function Print1().

What should I do to solve this problem?  Thanks!

-- 

Xiaomao

=================================================================
Xiaomao (Mark) Xiao                  E-Mail: xiao@cmold.com
C-MOLD                                  TEL: (607) 257-4949 x 699
31 Dutch Mill Road                      FAX: (607) 257-6355
Ithaca, NY 14850                        URL: http://www.cmold.com
=================================================================

Re: gnu-win32 B19: gdb and template

[Alexandre Oliva]

Xiaomao Xiao <xiao@cmold.com> writes:

> I recently tried to debug a c++ program with templates on my Windows NT box
> installed with gnu-win32 B19.

Have you installed egcs?  AFAIK, gnu-win32 B19 comes with gcc 2.7.*,
run gcc -v to check.  gcc 2.7 has some bugs in the generation of
debugging information and, AFAIK, so does gdb 4.16.  You may want to
install gdb 4.17 too.

-- 
Alexandre Oliva
mailto:oliva@dcc.unicamp.br mailto:oliva@gnu.org mailto:aoliva@acm.org
http://www.dcc.unicamp.br/~oliva
Universidade Estadual de Campinas, SP, Brasil

Re: gnu-win32 B19: gdb and template

[Xiaomao Xiao]

Hi there:

I think that I use the latest egcs.  My gcc is egcs-2.91.57.  But my gdb is
probably 'old.'  It is 4.16-B19.  I couldn't find a gdb 4.17.  So I decided to
build one myself.  But the configuration stage failed: cannot find a compatible
ld.  My ld is 2.9.4 (with BFD 980830).  Any idea what I should do with this
kind of situation?  Do you know where I can get a precompiled binary of gdb
4.14?  Thanks.

>>>>> "Alexandre" == Alexandre Oliva <oliva@dcc.unicamp.br> writes:

Alexandre> Xiaomao Xiao <xiao@cmold.com> writes:
>> I recently tried to debug a c++ program with templates on my Windows NT box
>> installed with gnu-win32 B19.

Alexandre> Have you installed egcs?  AFAIK, gnu-win32 B19 comes with gcc 2.7.*,
Alexandre> run gcc -v to check.  gcc 2.7 has some bugs in the generation of
Alexandre> debugging information and, AFAIK, so does gdb 4.16.  You may want to
Alexandre> install gdb 4.17 too.

Alexandre> -- Alexandre Oliva mailto:oliva@dcc.unicamp.br mailto:oliva@gnu.org
Alexandre> mailto:aoliva@acm.org http://www.dcc.unicamp.br/~oliva Universidade
Alexandre> Estadual de Campinas, SP, Brasil




-- 

Xiaomao

=================================================================
Xiaomao (Mark) Xiao                  E-Mail: xiao@cmold.com
C-MOLD                                  TEL: (607) 257-4949 x 699
31 Dutch Mill Road                      FAX: (607) 257-6355
Ithaca, NY 14850                        URL: http://www.cmold.com
=================================================================