Re: [Xen-devel] [Qemu-devel] [Bug 1257099] [NEW] QEMU fails to build on CentOS 5.10 with relocation R_X86_64_PC32 error

[Richard Henderson <rth@xxxxxxxxxxx>]

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~

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