Re: [Qemu-devel] [PATCH, RFC] ld flag --warn-common

[Kirill A. Shutemov]

On Sun, Sep 07, 2008 at 11:24:37AM +0300, Blue Swirl wrote:
> Hi,
> 
> These trivial patches enable linker flag --warn-common and fix the
> warnings caused by enabling the flag.

This flag cause a lot of warning on my machine, even with trivial program.

$ cat 1.c
#include <stdio.h>

int main()
{
        printf("test\n");
        return 0;
}
$ gcc -Wl,--warn-common -static 1.c 
/usr/lib64/gcc/x86_64-alt-linux/4.1.2/../../../../lib64/libc.a(strtoul.o): 
warning: multiple common of `_nl_category_name_idxs'
/usr/lib64/gcc/x86_64-alt-linux/4.1.2/../../../../lib64/libc.a(strtol.o): 
warning: previous common is here
/usr/lib64/gcc/x86_64-alt-linux/4.1.2/../../../../lib64/libc.a(strtol_l.o): 
warning: multiple common of `_nl_category_name_idxs'
/usr/lib64/gcc/x86_64-alt-linux/4.1.2/../../../../lib64/libc.a(strtol.o): 
warning: previous common is here
/usr/lib64/gcc/x86_64-alt-linux/4.1.2/../../../../lib64/libc.a(strtoul_l.o): 
warning: multiple common of `_nl_category_name_idxs'
/usr/lib64/gcc/x86_64-alt-linux/4.1.2/../../../../lib64/libc.a(strtol.o): 
warning: previous common is here
/usr/lib64/gcc/x86_64-alt-linux/4.1.2/../../../../lib64/libc.a(vfprintf.o): 
warning: multiple common of `_nl_category_name_idxs'
/usr/lib64/gcc/x86_64-alt-linux/4.1.2/../../../../lib64/libc.a(strtol.o): 
warning: previous common is here

...and so on.


Is it problem with my toolchain? What is your testing environment?

-- 
Regards,  Kirill A. Shutemov
 + Belarus, Minsk
 + ALT Linux Team, http://www.altlinux.com/

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