Re: [PATCH 1/2] s390/vdso: Pass --eh-frame-hdr to the linker

[Jens Remus <jremus@linux.ibm.com>]

On 7/6/2026 5:19 PM, Jens Remus wrote:
> Commit 2b2a25845d53 ("s390/vdso: Use $(LD) instead of $(CC) to link
> vDSO") accidentally broke the GNU_PTR_EH_FRAME program table entry in

s/GNU_PTR_EH_FRAME/GNU_EH_FRAME/ 

> the vDSO, causing it to be empty:
> 
>   $ readelf --program-headers arch/s390/kernel/vdso/vdso.so
>   ...
>   Program Headers:
>     Type           Offset             VirtAddr           PhysAddr
>                    FileSiz            MemSiz              Flags  Align
>   ...
>     GNU_EH_FRAME   0x0000000000000000 0x0000000000000000 0x0000000000000000
>                    0x0000000000000000 0x0000000000000000         0x8
>   ...
> 
> Originally, the compiler would implicitly add --eh-frame-hdr when
> invoking the linker, but when this Makefile was converted from invoking
> the linker via the compiler, to invoking it directly, the option was
> missed.
> 
> This is the s390 variant of x86 commit cd01544a268a ("x86/vdso: Pass
> --eh-frame-hdr to the linker").
> 
> Fixes: 2b2a25845d53 ("s390/vdso: Use $(LD) instead of $(CC) to link vDSO")
> Signed-off-by: Jens Remus <jremus@linux.ibm.com>
Regards,
Jens
-- 
Jens Remus
Linux on Z Development (D3303)
jremus@de.ibm.com / jremus@linux.ibm.com

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