https://sourceware.org/bugzilla/show_bug.cgi?id=19579
--- Comment #10 from H.J. Lu <hjl.tools at gmail dot com> ---
(In reply to H.J. Lu from comment #9)
> Created attachment 9059 [details]
> A patch
>
> Please try this patch.
Doesn't work:
[hjl@gnu-6 pr19579]$ cat x.c
#include <stdio.h>
int foo[1];
int bar[1];
extern int *foo_p (void);
extern int *bar_p (void);
int
main ()
{
if (foo[0] == 0 && foo == foo_p () && bar[0] == 0 && bar == bar_p ())
printf ("PASS\n");
return 0;
}
[hjl@gnu-6 pr19579]$ cat foo.c
int foo[2];
int bar[2] = { -1, -1 };
int *
foo_p (void)
{
return foo;
}
int *
bar_p (void)
{
return bar;
}
[hjl@gnu-6 pr19579]$ make
gcc -pie -fPIE -O0 -c -o x.o x.c
gcc -pie -fPIE -O0 -fPIC -c -o foo.o foo.c
gcc -pie -shared -o libfoo.so foo.o
gcc -pie -o x x.o libfoo.so -Wl,-R.
/usr/local/bin/ld: Warning: size of symbol `bar' changed from 4 in x.o to 8 in
libfoo.so
/usr/local/bin/ld: x.o(.text+0x24): unresolvable R_X86_64_PC32 relocation
against symbol `bar'
/usr/local/bin/ld: final link failed: Nonrepresentable section on output
collect2: error: ld returned 1 exit status
Makefile:17: recipe for target 'x' failed
make: *** [x] Error 1
[hjl@gnu-6 pr19579]$
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