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Re: Update LTO plugin interface
On 02/12/2010 23:29, Cary Coutant wrote:
> For the crtend files we could add a linker option that makes them
> known as endcaps, and the linker could make sure they get laid out
> last:
>
> ld ... -lc -lgcc ... --endcap crtend.o crtn.o
>
> That puts the special knowledge about those files back in the gcc driver.
Hmm, yes. It doesn't work to just pass-through crtn.o, because ...
> Executing on host: /home/davek/gcc/obj-gold2/gcc/xgcc -B/home/davek/gcc/obj-gold2/gcc/ c_lto_20100722-1_0.o -O0 -flto -flto-partition=none -fuse-linker-plugin -o gcc-dg-lto-20100722-1-01 (timeout = 300)
> gold: /home/davek/gcc/obj-gold2/gcc/crtbegin.o:(.text+0x13): error: undefined reference to '__DTOR_END__'
> collect2: ld returned 1 exit status
> compiler exited with status 1
> output is:
> gold: /home/davek/gcc/obj-gold2/gcc/crtbegin.o:(.text+0x13): error: undefined reference to '__DTOR_END__'
> collect2: ld returned 1 exit status
>
... it's needed by the first pass of symbol resolution.
cheers,
DaveK