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From: "liwei79 at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug other/46125] New: -mcmodel=large doesn't work
Date: Fri, 22 Oct 2010 01:53:00 -0000	[thread overview]
Message-ID: <bug-46125-4@http.gcc.gnu.org/bugzilla/> (raw)

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46125

           Summary: -mcmodel=large doesn't work
           Product: gcc
           Version: 4.5.1
            Status: UNCONFIRMED
          Severity: critical
          Priority: P3
         Component: other
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: liwei79@gmail.com


Hi,

I am working on huge object files and I am glad to see that gcc
supports -mcmodel=large now. However, my experiment even doesn't work
because of relocation problem in crtbeginS.o

My Source file: t.c
#include <stdio.h>
extern int foo(int argc, char **argv);
void *pv1[1024]={(void*)foo,};
char aaaaa[2147483658] = {1, 2 };
char bbbbb[2147483658] = {2, 3 };
void *pv2[1024]={(void*)foo,};

int foo(int argc, char **argv)
{
    printf("%d", aaaaa[2147483657]);
    printf("%d", bbbbb[2147483657]);
    return 0;
}

Command line:
gcc -mcmodel=large -fPIC -shared t.c -o t.so

Error:
/gcc4.5.1/lib/gcc/x86_64-unknown-linux-gnu/4.5.1/crtbeginS.o: In
function `__do_global_dtors_aux':
crtstuff.c:(.text+0x3): relocation truncated to fit: R_X86_64_PC32
against `.bss'
crtstuff.c:(.text+0x37): relocation truncated to fit: R_X86_64_PC32
against `.bss'
crtstuff.c:(.text+0x57): relocation truncated to fit: R_X86_64_PC32
against `.bss'
crtstuff.c:(.text+0x62): relocation truncated to fit: R_X86_64_PC32
against `.bss'
crtstuff.c:(.text+0x6d): relocation truncated to fit: R_X86_64_PC32
against `.bss'

Could someone help me figure out the problem? I am using RH5 64bit. My gcc is
compiled with all default configuration. 

Thanks,
Wei


             reply	other threads:[~2010-10-22  1:53 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-10-22  1:53 liwei79 at gmail dot com [this message]
2010-10-27 20:38 ` [Bug other/46125] " pinskia at gcc dot gnu.org
2010-10-28  6:23 ` liwei79 at gmail dot com
2012-06-21 15:28 ` adrian.m.smith at gmail dot com

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