gdb can not debug “hello world” in mac os x

[hefeweizen <horacio.sanchez@kit.edu>]

Hi, I have the following smal C++ program

#include <stdio.h>
#include <stdlib.h>

int main(void) {
    puts("!!!Hello World!!!");
    return EXIT_SUCCESS;
}

I compile in Mac OS X Leopard last release using:

g++ -g hello.cpp -o hello.exe

being g++:

host:bin macbook$ g++ --ver
Using built-in specs.
Target: i686-apple-darwin9
Configured with: /var/tmp/gcc/gcc-5493~1/src/configure --disable-checking
-enable-werror --prefix=/usr --mandir=/share/man
--enable-languages=c,objc,c++,obj-c++
--program-transform-name=/^[cg][^.-]*$/s/$/-4.0/
--with-gxx-include-dir=/include/c++/4.0.0 --with-slibdir=/usr/lib
--build=i686-apple-darwin9 --with-arch=apple --with-tune=generic
--host=i686-apple-darwin9 --target=i686-apple-darwin9
Thread model: posix
gcc version 4.0.1 (Apple Inc. build 5493)

then I try to debug this program using fsf-gdb 7.1:

fsf-gdb hello.exe

put a breakpoint in main:

(gdb) b main
Breakpoint 1 at 0x1f8f: file hello.cpp, line 5.

run the program:

(gdb) r
Starting program:
/Users/horacio/work/software/gdb/gdb-7.2-inst/bin/hello.exe 

Breakpoint 1, main () at hello.cpp:5
5       puts("!!!Hello World!!!");

and try to step, and this happens:

(gdb) n
0x00003045 in ?? ()

This is the output if I do the same under Ubuntu Linux:

(gdb) n
!!!Hello World!!!
6       return EXIT_SUCCESS;

where gcc=7.1 and gcc 4.3.4

What is the problem ???? I honestly do not understand why this does not work
in mac os x.

Maybe the problem is the gdb version used in mac or the gcc version in mac.
Which other alternatives exist for gdb in mac?

Thanks in advance

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