I got an answer based on the other question I had posted.
I think "Rule" provided for given inf (using RuleOverride) forces certain
files to be present:

[Rule.Common.USER_DEFINED.ACPITABLE]
  FILE FREEFORM = $(NAMED_GUID) {
    RAW ACPI               |.acpi
    RAW ASL                |.aml
  }

So, in this case, for given inf module, if either of .acpi or .aml file is
not generated,
then below kind of error shows up:

: error F003: Output file for RAW section could not be found for
Platform/ARM/JunoPkg/AcpiTables/AcpiTables.inf

Regards,
Abhishek

On Thu, Jan 28, 2021 at 5:47 PM Abhishek Shah <abhishek.shah@broadcom.com>
wrote:

> Hi All,
>
> I am trying to compile some ACPI tables, and I observed that
> if I specify less minimal tables/asl as Sources for ACPI tables module INF
> file
> (resulting in less size of overall module), compilation fails with below
> error:
>
> build.py...
>  : error F003: Output file for RAW section could not be found for
> Platform/ARM/JunoPkg/AcpiTables/AcpiTables.inf
>
> To reproduce this issue,
> 1) Apply below patch (just keeping Fadt.c here as example;
> Other ways: just keep ASL file after removing some objects to reduce file
> size; or keep combination of .c and .asl files - **as long as these files
> are small**):
>
> --------------------------------------------------------------------------------
> diff --git a/Platform/ARM/JunoPkg/AcpiTables/AcpiTables.inf
> b/Platform/ARM/JunoPkg/AcpiTables/AcpiTables.inf
> index f140febc4a..1a489a0a8a 100644
> --- a/Platform/ARM/JunoPkg/AcpiTables/AcpiTables.inf
> +++ b/Platform/ARM/JunoPkg/AcpiTables/AcpiTables.inf
> @@ -16,13 +16,8 @@
>    VERSION_STRING                 = 1.0
>
>  [Sources]
> -  Dsdt.asl
> -  Dbg2.aslc
> -  Spcr.aslc
>    Fadt.aslc
> -  Gtdt.aslc
>    Madt.aslc
> -  AcpiSsdtRootPci.asl          # Juno R1 specific
>
>  [Packages]
>    ArmPkg/ArmPkg.dec
>
> --------------------------------------------------------------------------------
>
> 2) Now compile the module:
> export PACKAGES_PATH=`pwd`/edk2-platforms/
>
> --------------------------------------------------------------------------------
> build   -a AARCH64 -t GCC5 -p Platform/ARM/JunoPkg/ArmJuno.dsc -m
> Platform/ARM/JunoPkg/AcpiTables/AcpiTables.inf
>
> Processing meta-data .
> Architecture(s)  = AARCH64
> Build target     = DEBUG
> Toolchain        = GCC5
>
> Active Platform          =
> /projects/uefi/edk2-platforms/Platform/ARM/JunoPkg/ArmJuno.dsc
> Active Module            =
> /projects/uefi/edk2-platforms/Platform/ARM/JunoPkg/AcpiTables/AcpiTables.inf
> ...
>
> build.py...
>  : error F003: Output file for RAW section could not be found for
> Platform/ARM/JunoPkg/AcpiTables/AcpiTables.inf
>
> - Failed -
> Build end time: 17:44:14, Jan.28 2021
> Build total time: 00:00:04
>
> --------------------------------------------------------------------------------
>
> Can anyone help understand this behavior?
>
> Regards,
> Abhishek
>