On 12/05/13 22:20, Don Slutz wrote:
> On 12/05/13 16:24, Richard Henderson wrote:
>> On 12/06/2013 04:18 AM, Paolo Bonzini wrote:
>>> $ gcc -shared -o f.so f.c -fPIE -fPIC
>>> /usr/bin/ld: /tmp/ccQc9els.o: relocation R_X86_64_PC32 against `f'
>>> can not be used when making a shared object; recompile with -fPIC
>>> /usr/bin/ld: final link failed: Bad value
>>> collect2: ld returned 1 exit status
>>>
>>>
>>> The bug is simply that "-fPIE -fPIC" counts as -fPIE rather than -fPIC:
>>>
>>> $ gcc -S -o - f.c -fPIE |grep call
>>> call f # PC32 relocation
>>> $ gcc -S -o - f.c -fPIC |grep call
>>> call f@PLT # PLT32 relocation
>> The easy workaround is to drop -fPIE when we're adding -fPIC.
>>
>>
>> r~
[snip]
Attached is a much better version. It drops -fPIE and adds -fPIC for
libtool.
On 12/05/13 22:20, Don Slutz wrote:
> On 12/05/13 16:24, Richard Henderson wrote:
>> On 12/06/2013 04:18 AM, Paolo Bonzini wrote:
>>> $ gcc -shared -o f.so f.c -fPIE -fPIC
>>> /usr/bin/ld: /tmp/ccQc9els.o: relocation R_X86_64_PC32 against `f'
>>> can not be used when making a shared object; recompile with -fPIC
>>> /usr/bin/ld: final link failed: Bad value
>>> collect2: ld returned 1 exit status
>>>
>>>
>>> The bug is simply that "-fPIE -fPIC" counts as -fPIE rather than -fPIC:
>>>
>>> $ gcc -S -o - f.c -fPIE |grep call
>>> call f # PC32 relocation
>>> $ gcc -S -o - f.c -fPIC |grep call
>>> call f@PLT # PLT32 relocation
>> The easy workaround is to drop -fPIE when we're adding -fPIC.
>>
>>
>> r~
[snip]
Attached is a much better version. It drops -fPIE and adds -fPIC for
libtool.
-Don Slutz