Re: Dependency expression inheritance problems

["Gao, Liming" <liming.gao@intel.com>]

Daryl:
  Could you submit one tracker in bugzillar? We will check it in BaseTools.

Thanks
Liming
> -----Original Message-----
> From: darylm@mc2research.com [mailto:darylm@mc2research.com] On Behalf Of edk2-lists@mc2research.org
> Sent: Friday, March 30, 2018 7:10 AM
> To: Gao, Liming <liming.gao@intel.com>; edk2-devel@lists.01.org
> Subject: RE: [edk2] Dependency expression inheritance problems
> 
> Liming,
> 
> This is only a problem with binary libraries.  If I do everything from
> sources, the generated .depex is correct.
> 
> Daryl
> 
> -----Original Message-----
> From: Gao, Liming <liming.gao@intel.com>
> Sent: Thursday, March 29, 2018 12:08 AM
> To: edk2-lists@mc2research.org; 'Laszlo Ersek' <lersek@redhat.com>;
> edk2-devel@lists.01.org
> Subject: RE: [edk2] Dependency expression inheritance problems
> 
> Daryl:
>   Do you try the source library INF file? EDK2 build system will inherit the
> depex section from its library. Seemly, this is an issue when the module is
> the binary library.
> 
> Thanks
> Liming
> >-----Original Message-----
> >From: edk2-devel [mailto:edk2-devel-bounces@lists.01.org] On Behalf Of
> >edk2-lists@mc2research.org
> >Sent: Thursday, March 29, 2018 6:48 AM
> >To: 'Laszlo Ersek' <lersek@redhat.com>; edk2-devel@lists.01.org
> >Subject: Re: [edk2] Dependency expression inheritance problems
> >
> >Laszlo,
> >
> >I think you are thinking of the old .dxs files.  EDK II supports them,
> >but their use is discouraged.
> >From the "EDK II Build Specification", v1.27:
> >"For EDK II modules, the build tools will create the complete
> >dependency expression using the information in the [Depex] section
> >along with all [Depex] sections from the linked in library instances."
> >
> >and
> >
> >"Once all files are parsed, the build tools will do following work for
> >each EDK II
> >module:
> >	...
> >	*  Inherit library instance dependency ( [Depex] sections) expressions
> 
> >if a module does not list a separate dependency file."
> >
> >So, use of the [Depex] sections in the .DSC and .INF files is supposed
> >to be the way to go.
> >
> >The spec. also states that if a .dxs file is specified, inheritance
> >will not be used and the .dxs file must specify every dependency.  "Use
> >of a separate file for describing the dependencies is discouraged. ...
> >Libraries may also have a dependency, [Depex] , section. These
> >dependencies must be appended to the module's DEPEX sections unless the
> >module includes a depex (.dxs) file - even if the module does not
> >contain a [Depex] section. When a developer chooses to write the .dxs
> >file, the developer is responsible for specifying all dependencies in the
> .dxs file."
> >
> >I believe that according to the spec., what I am attempting should
> >work.  The EDK II build tools should generate a .depex file for the
> >module that contains the module's depex as well as depex' inherited
> >from the module's component libraries.
> >
> >But, I could be misinterpreting the spec. or doing something wrong in
> >the build files (.DSC and .INF).
> >
> >Has anyone actually looked at the .depex that the tools produce and
> >compared it to what the expected contents are for binary and hybrid
> >(binary +
> >source) builds?
> >
> >Thanks much,
> >Daryl
> >
> >
> >-----Original Message-----
> >From: Laszlo Ersek <lersek@redhat.com>
> >Sent: Wednesday, March 28, 2018 11:34 AM
> >To: edk2-lists@mc2research.org; edk2-devel@lists.01.org
> >Subject: Re: [edk2] Dependency expression inheritance problems
> >
> >On 03/28/18 20:32, Laszlo Ersek wrote:
> >> On 03/28/18 20:14, edk2-lists@mc2research.org wrote:
> >>> Hopefully someone on the list can help with this problem.
> >>>
> >>>
> >>>
> >>> I have a DXE_DRIVER that links with several libraries.  Some of
> >>> these libraries are from a binary distribution.  I checked the
> >>> binary library's .INF file and it has the [LibraryClasses] and
> >>> [Depex] sections present in the same format as for a source .INF.
> >>> (not
> >>> comments)
> >>
> >> Isn't that wrong (from the binary distribution)? The INF spec makes
> >> me think think that library instances provided in binary format
> >> should ship their standalone .depex files as well, and they should be
> >> referenced in the [Binaries] section of the respective lib instance INF
> file.
> >>
> >> https://edk2-docs.gitbooks.io/edk-ii-inf-specification/content/2_inf_
> >> o verview/215_[depex]_section.html#215-depex-section
> >>
> >> "Binary .depex files are listed in [Binaries] sections of the INF files."
> >>
> >> I vaguely recall seeing an example somewhere, but nothing specific. I
> >> could be totally wrong. :)
> >
> >I should have looked a but further in the same spec :) See the "Example"
> >section here:
> >
> >https://edk2-docs.gitbooks.io/edk-ii-inf-
> >specification/content/3_edk_ii_inf_file_format/315_[binaries]_section.h
> >tml
> >
> >Laszlo
> >
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