Re: [edk2-devel] MicrovmX64, "Did not find any '.text' section"

["Leif Lindholm via groups.io" <leif.lindholm=oss.qualcomm.com@groups.io>]

Hi Oliver, Gerd,

On Mon, 4 Nov 2024 at 21:17, Oliver Smith-Denny
<osde@linux.microsoft.com> wrote:
> >> While working on the FdtLib migration to the submodule variant, I decided to
> >> at least try to test build MicrovmX64 ... but I'm failing.
> >>
> >> Both clang and gcc builds bail out at a GenFw invocation to generate
> >> ResetVector.efi due to "Did not find any '.text' section". (Assert on line
> >> 938 of Elf64Convert.c.)
>
> So I was hitting this also when doing dynamic stack cookies and trying
> different ways to make ResetVector be okay being linked to the
> null stack cookie lib. There is something that BaseTools doesn't do well
> when ResetVector is linked against libraries, are you adding a library
> linkage here (say a NULL lib applied globally)?

No, I mean I'm building current edk2 HEAD unmodified, with current
in-tree BaseTools.
With GCC 14.2.0 using GCC profile, and clang 16.0.2 using CLANGDWARF profile.
(On Debian "testing".)

> To fix this for stack cookies, my PR converts ResetVector to be
> USER_DEFINED so that BaseTools will not link NULL libs against it.
>
> Worth a shot seeing if making that change (you need to change the
> RESETVECTOR rule in the FDF from SEC to USER_DEFINED also) makes
> a difference. If this is not being caused by a null library
> linkage, then I have no idea what is happening :).

I can confirm the above workaround fixes the build for both toolchain profiles.
Thanks a lot, that means I can get back to verifying my actual changes :)

Best Regards,

Leif


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