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Subject: Re: [edk2-devel] warning: Empty loadable segment detected
To: devel@edk2.groups.io, lersek@redhat.com
Cc: Liming Gao <liming.gao@intel.com>
References: <b02bf8c9-d903-5fd5-da9c-565c183b7751@redhat.com>
From: "Ard Biesheuvel" <ard.biesheuvel@arm.com>
Message-ID: <2f69532c-7141-0b9e-026d-d2a647d138a1@arm.com>
Date: Mon, 6 Jul 2020 12:43:22 +0300
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On 7/6/20 11:39 AM, Laszlo Ersek via groups.io wrote:
> Hi,
> 
> I've just noticed the following warning in the build log:
> 
>> objcopy: [...]: warning: Empty loadable segment detected, is this
>> intentional ?
> 
> The modules this is logged for are:
> 
> - CapsuleRuntimeDxe
> - CpuS3DataDxe
> - EnrollDefaultKeys
> - FaultTolerantWriteSmm
> - IncompatiblePciDeviceSupport
> - MonotonicCounterRuntimeDxe
> - RealTimeClockRuntimeDxe
> - XenIoPvhDxe
> 
> I can't tell if this is a new symptom, or the only "new" thing is my
> noticing of it.
> 
> The warning is familiar, from commit 26ecc55c027d ("BaseTools IA32/X64:
> prevent .eh_frame sections from being generated", 2015-08-13).
> 
> I get the warnings in NOOPT_GCC48 builds of OVMF (Ia32X64, X64, and Xen
> -- not in Ia32).
> 
> Does someone have an idea what the warnings could be due to?
> 

Could you share the output of 'readelf -a' for such a module?