[Bug ld/22001] New: -z nocopyreloc doesn't work right

[hjl.tools at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=22001

            Bug ID: 22001
           Summary: -z nocopyreloc doesn't work right
           Product: binutils
           Version: 2.30 (HEAD)
            Status: NEW
          Severity: normal
          Priority: P2
         Component: ld
          Assignee: unassigned at sourceware dot org
          Reporter: hjl.tools at gmail dot com
  Target Milestone: ---
            Target: x86-64

[hjl@gnu-6 nocopy-1]$ cat foo.c
#include <stdlib.h>

extern int copy;
extern int get_copy (void);

int main()
{
  if (copy != get_copy ())
    abort ();

  return 0;
}
[hjl@gnu-6 nocopy-1]$ cat bar.c 
#include <stdlib.h>

extern int copy;
extern int* get_copy_p (void);

int main()
{
  if (&copy != get_copy_p ())
    abort ();

  return 0;
}
[hjl@gnu-6 nocopy-1]$ cat shared.c 
int copy = 1;

int
get_copy ()
{
  return copy;
}

int *
get_copy_p ()
{
  return &copy;
}
[hjl@gnu-6 nocopy-1]$ make
gcc  -O -c foo.c
gcc  -O -fPIC -c shared.c
./ld -shared  -o libshared.so shared.o
gcc  -Wl,-z,nocopyreloc -o foo foo.o libshared.so -Wl,-rpath,.
gcc  -O -c bar.c
gcc  -Wl,-z,nocopyreloc -o bar bar.o libshared.so -Wl,-rpath,.
/usr/local/bin/ld: bar.o(.text+0xb): unresolvable R_X86_64_32S relocation
against symbol `copy'
/usr/local/bin/ld: final link failed: Nonrepresentable section on output
collect2: error: ld returned 1 exit status
make: *** [Makefile:21: bar] Error 1
[hjl@gnu-6 nocopy-1]$ ./foo
./foo: Symbol `copy' causes overflow in R_X86_64_PC32 relocation
Segmentation fault
[hjl@gnu-6 nocopy-1]$

-- 
You are receiving this mail because:
You are on the CC list for the bug.
_______________________________________________
bug-binutils mailing list
bug-binutils@gnu.org
https://lists.gnu.org/mailman/listinfo/bug-binutils