On May 6, 2013, at 8:08 AM, "Kinney, Michael D" <[email protected]>
wrote:
> Mike,
>
> When duplicate statements appear some sections, only the last statement in
> the section is used. I think you are seeing that behavior in your example.
>
This brings up a general issue with the current scheme. It is not possible to
use multiple lines. It would be nice to support some kind of multi-line syntax
(maybe like C preprocessor). It would also be good if lines that are ignored
would generate a warning of some kind.
> In order to get all 3 flags appended, you need to do that in a single
> statement in the section. If you want to conditionally append DEBUG2 as
> shown in your example, you might consider the following:
>
To work around these limitations I've done stuff like this in the past.
[Defines]
DEFINE DEBUG_FLAGS = /D DEBUG1 /D DEBUG3
[BuildOptions]
!ifdef $(S2)
MSFT:*_*_*_CC_FLAGS = $(DEBUG_FLAGS) /D DEBUG2
!else
MSFT:*_*_*_CC_FLAGS = $(DEBUG_FLAGS)
!endif
> !ifdef $(S2)
> MSFT:*_*_*_CC_FLAGS = /D DEBUG1 /D DEBUG2 /D DEBUG3
> !else
> MSFT:*_*_*_CC_FLAGS = /D DEBUG1 /D DEBUG3
> !endif
>
> Mike
>
> From: Lee mike [mailto:[email protected]]
> Sent: Monday, May 06, 2013 6:29 AM
> To: Andrew Fish
> Cc: [email protected]
> Subject: Re: [edk2-buildtools] Re-define element in [BuildOptions]
>
> Hi Andrew,
>
> Sorry for my unclear statement. I am seeing a way to append definitions in
> the same section so that when I write
>
> [BuildOptions]
> MSFT:*_*_*_CC_FLAGS = /D DEBUG1
> MSFT:*_*_*_CC_FLAGS = /D DEBUG2
> MSFT:*_*_*_CC_FLAGS = /D DEBUG3
>
> I need it to behave as
> MSFT:*_*_*_CC_FLAGS = /D DEBUG1 /D DEBUG2 /D DEBUG3
>
> But I found it uses the last one only, which means it treats my code as
> MSFT:*_*_*_CC_FLAGS = /D DEBUG3
>
> My environment is Windows7/VS2008, building edk2/OvmfPkgX64 from
> https://github.com/tianocore/edk2.git
> (git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@14323)
>
> Thanks.
>
> BR,
> Mike
>
>
>
> 2013/5/6 Andrew Fish <[email protected]>
>
> Andrew Fish
>
>
>
>
>
> On May 4, 2013, at 11:18 PM, Lee mike <[email protected]> wrote:
>
> > Hi,
> >
> > I wrote code to .dsc as below:
> >
> > [BuildOptions]
> > MSFT:*_*_*_CC_FLAGS = /D DEBUG1
> > MSFT:*_*_*_CC_FLAGS = /D DEBUG2
> > MSFT:*_*_*_CC_FLAGS = /D DEBUG3
> >
> > The output makefile shows that build.exe (or something else in BaseTools)
> > emits DEBUG3 only.
> > CC_FLAGS = /nologo /FAcs /c /WX /GS- /W4 /Gs32768 /Gy /D UNICODE /O1ib2
> > /GL /FIAutoGen.h /EHs-c- /GR- /GF /Zi /Gm /D DEBUG3
> >
> > Invoking build.exe with '-D S2' to the following code will certainly not
> > generate DEBUG2 too.
> > [BuildOptions]
> > MSFT:*_*_*_CC_FLAGS = /D DEBUG1
> > !ifdef $(S2)
> > MSFT:*_*_*_CC_FLAGS = /D DEBUG2
> > !endif
> > MSFT:*_*_*_CC_FLAGS = /D DEBUG3
> >
> > Any advice?
> >
>
> The spec for the DSC file states:
> Two types of assignment operators are permitted, the single equal “=” sign is
> used to append the string to the existing definition, while the double equal
> “==” sign is used to override any previous definition, replacing the content
> with just the string.
>
> So it sounds like you are seeing == behavior? What happens when you use ==?
>
> Thanks,
>
> Andrew Fish
>
> >
> > BR,
> > Mike
> >
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