On Mon, 2011-02-21 at 23:43 +0100, Stefano Bonifazi wrote:
> Hi all!
> I am reposting the previous problem, as after some investigation the
> problem is more clear:there is some error creating a PIC EXECUTABLE in a
> POWER-PC Debian6!
>
> Even when creating the simplest code:
> int main() {}
>
> compiling with "gcc -fPIC" and then linking with "gcc -Wl,-pie" produces
> non PIC code:
>
> checking all the linked object files (also those added by gcc) with
> "readelf -d myobjectfile | fgrep TEXT" all seem to be PIC as nothing is
> produced by the previous command.
> Oddly giving the command "readelf -d mypie_executable | fgrep TEXT" to
> my final 'PIC' output executable I get: "0x00000016 (TEXTREL) 0x0"
> Then if I try to load the file with QEMU-USER I get: "error while
> loading shared libraries: R_PPC_REL24 relocation at 0xb31f95a0 for
> symbol `__libc_start_main' out of range" !!!
>
> If I link with "-shared" all is fine and the library is PIC.. Also if I
> create a normal executable, or a normal executable relocated at linker
> time with "-Wl,-Ttext-segment=myaddress" all is fine..
> I think the linker goes crazy as I want a PIC executable not a library!
>
> I am creating the binaries using Debian 6 kernel 2.6.32.5 powerpc
> running in a qemu VM, with gcc 4.4.5-8, binutils 2.20.1 eglibc 2.11.2-10
>
> I have outputs of dumps of objdump, readelf, and Map here:
>
> http://cid-9d0dd0f6c6e22fe8.office.live.com/browse.aspx/Public/Developing/master-degree-project?uc=2
>
>
> Please help!! I really dunno how to solve it!
You should probably file a bug against gcc or binutils.
--
Earthling Michel Dänzer | http://www.vmware.com
Libre software enthusiast | Debian, X and DRI developer
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