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To: edk2-devel-groups-io <devel@edk2.groups.io>
Cc: "Ard Biesheuvel (ARM address)" <ard.biesheuvel@arm.com>,
 Liming Gao <liming.gao@intel.com>
From: "Laszlo Ersek" <lersek@redhat.com>
Subject: warning: Empty loadable segment detected
Message-ID: <b02bf8c9-d903-5fd5-da9c-565c183b7751@redhat.com>
Date: Mon, 6 Jul 2020 11:39:55 +0200
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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?

Thanks!
Laszlo