[Bug ld/30813] New: Compilation Fails Due to the Use of Protected Symbols

[chenhaixiang3 at huawei dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=30813

            Bug ID: 30813
           Summary: Compilation Fails Due to the Use of Protected Symbols
           Product: binutils
           Version: 2.40
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: ld
          Assignee: unassigned at sourceware dot org
          Reporter: chenhaixiang3 at huawei dot com
  Target Milestone: ---

Hi
I'm having a problem with binutils version 2.40 .
After switching to binutils version 2.40, the following cases fail to compile
successfully:
```
$cat protected1moda.c
int protected1 = 3;
asm (".protected protected1");
void
set_protected1a (int i)
{
  protected1 = i;
}

$cat protected1a.c
#include <stdio.h>
extern int protected1;
void
main (void)
{
  protected1 = 1;
}

$gcc protected1moda.c -shared -fPIC -o protected1moda.so
$gcc protected1a.c -fPIE protected1moda.so
```
At this point, the compilation results in the following error:
/usr/bin/ld: /tmp/ccPvtTxE.o: copy relocation against non-copyable protected
symbol `protected1' in protected1moda.so
collect2: error: ld returned 1 exit status

However, this error is not present in binutils version 2.37.
Is this a feature of version 2.40? If it is, how should I modify my case to
address this issue?

Thanks

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