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Re: relocation truncated to fit
- From: Canqun Yang <canqun at yahoo dot com dot cn>
- To: Richard Guenther <richard dot guenther at gmail dot com>
- Cc: gcc at gcc dot gnu dot org
- Date: Thu, 26 Jul 2007 20:32:32 +0800 (CST)
- Subject: Re: relocation truncated to fit
Hi, Guenther
It works. Thank you very much!
Canqun Yang
--- Richard Guenther <richard.guenther@gmail.com>:
> On 7/26/07, Canqun Yang <canqun@yahoo.com.cn> wrote:
> > Hi, all
> >
> > Can anyone help me to resolve this problem?
> >
> > When I compile a program with .bss segement larger than 2.0GB, I get the
> > following error message from GNU linker (binutils-2.15).
> >
> > (.text+0x305): In function `sta_':
> > : relocation truncated to fit: R_X86_64_32S plot_
> > ......
> >
> > I upgrade the assembler and the linker from binutis-2.17, then get the
> > message below.
> >
> > STA.o: In function `sta_':
> > STA.F:(.text+0x305): relocation truncated to fit: R_X86_64_32S against
> > symbol `plot_' defined in COMMON section in STA.o
> >
> > So, I modified the binutils-2.17/bfd/elf64-x86-64.c and rebuild the linker
> > to ignore the relocation errors. Though the executable generated,
> > segementation fault occurred during execution.
> >
> > Here is the configuration of my computer:
> >
> > CPU: Intel(R) Xeon(R) CPU 5150 @ 2.66GHz
> > OS: Linux mds 2.6.9-34.EL_lustre.1.4.6.1custom #3 SMP Fri Jul 13 15:27:27
> > CST 2007 x86_64 x86_64 x86_64 GNU/Linux
> > Compiler: Intel C++/Fortran compiler for linux 10.0
> >
> > I also wrote a program with large uninitialized data -- more than 2.0GB.
> > It passes after linked with the modified linker. The source code is appended.
>
> Try using -mcmodel=medium
>
> Richard.
>
> > #define N 0x05fff
> >
> > double a[N][N];
> >
> > int
> > main ()
> > {
> > int i, j;
> > double sum;
> >
> > for (i = 0; i < N; i+=5)
> > for (j = 0; j < N; j+=5)
> > a[i][j] = 2* i*j + i*i + j*j;
> >
> >
> > sum = 0.0;
> > for (i = 0; i < N; i+=5)
> > for (j = 0; j < N; j+=5)
> > sum += a[i][j];
> >
> > printf ("%f\n", sum);
> > }
> >
> >
> > Best regards,
> >
> > Canqun Yang
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