Re: Problem with building AML file from Dsdt.asl for Juno - linaro-toolchain

21 Feb 2017


      Oh dear...
Adding linaro-toolchain@lists.linaro.org to see what they have to say
(and linaro-uefi, because it's useful information for subscribers of that).
Regards,
Leif
On Tue, Feb 21, 2017 at 08:09:53PM +0000, Evan Lloyd wrote:
...
To add to Alexei's comments:
It seems there is a bug in the newer GCC Pre-processor that messes with the file case.
(He is currently checking what file system flags might be affecting that, but older versions work fine).
The questions I'd add are:
Is there someone in Linaro who we might discuss the problem with (on the GCC side)?  I think there are Linaro guys involved with it, and they may be able to tell us it is confusion on our part.
Should we be trying to upstream the fix, or just wait for a new GCC?
Regards,
Evan
From: Alexei Fedorov
Sent: 21 February 2017 16:37
To: ard.biesheuvel@linaro.org; ryan.harkin@linaro.org; leif.lindholm@linaro.org; Evan Lloyd; Sami Mujawar; Girish Pathak
Cc: Mitch Ishihara; Alexei Fedorov
Subject: Problem with building AML file from Dsdt.asl for Juno
Hello,
We are facing a problem when compiling Juno's Dsdt.asl file with the following GCC builds:
gcc-linaro-5.3.1-2016.05-i686-mingw32_aarch64-elf
gcc-linaro-6.1.1-2016.08-i686-mingw32_aarch64-elf
gcc-linaro-6.2.1-2016.11-i686-mingw32_aarch64-elf
gcc-linaro-6.3.1-2017.02-i686-mingw32_aarch64-elf
which all show a similar error:
...
Trim --source-code -l -o k:\Build\ArmJuno\DEBUG_GCC5\AARCH64\OpenPlatformPkg\Platforms\ARM\Juno\AcpiTables\AcpiTables\OUTPUT.\Dsdt.iiii k:\Build\ArmJuno\DEBUG_GCC5\AARCH64\OpenPlatformPkg\Platforms\ARM\Juno\AcpiTables\AcpiTables\OUTPUT.\Dsdt.iii
"C:\ASL\iasl"  -pk:\Build\ArmJuno\DEBUG_GCC5\AARCH64\OpenPlatformPkg\Platforms\ARM\Juno\AcpiTables\AcpiTables\OUTPUT.\Dsdt.aml k:\Build\ArmJuno\DEBUG_GCC5\AARCH64\OpenPlatformPkg\Platforms\ARM\Juno\AcpiTables\AcpiTables\OUTPUT.\Dsdt.iiii
Error    6126 -  Input file does not appear to be an ASL or data table source file
Intel ACPI Component Architecture
make: *** [Makefile:325: k:\Build\ArmJuno\DEBUG_GCC5\AARCH64\OpenPlatformPkg\Platforms\ARM\Juno\AcpiTables\AcpiTables\OUTPUT\Dsdt.aml] Error -1
It looks like the problem is with GCC pre-processor running on Dsdt.i file (created after
Trim --asl-file -o k:\Build\ArmJuno\DEBUG_GCC5\AARCH64\OpenPlatformPkg\Platforms\ARM\Juno\AcpiTables\AcpiTables\OUTPUT.\Dsdt.i -i k:\Build\ArmJuno\DEBUG_GCC5\AARCH64\OpenPlatformPkg\Platforms\ARM\Juno\AcpiTables\AcpiTables\OUTPUT\inc.lst k:\OpenPlatformPkg\Platforms\ARM\Juno\AcpiTables\Dsdt.asl
)
See:
"C:\gcc-linaro-6.3.1-2017.02-i686-mingw32_aarch64-elf\bin\aarch64-elf-gcc" -x c -E -include AutoGen.h -Ik:\OpenPlatformPkg\Platforms\ARM\Juno\AcpiTables -Ik:\Build\ArmJuno\DEBUG_GCC5\AARCH64\OpenPlatformPkg\Platforms\ARM\Juno\AcpiTables\AcpiTables\DEBUG -Ik:\ArmPkg -Ik:\ArmPkg\Include -Ik:\ArmPlatformPkg -Ik:\ArmPlatformPkg\Include -Ik:\ArmPlatformPkg\ArmVExpressPkg -Ik:\ArmPlatformPkg\ArmVExpressPkg\Include -Ik:\ArmPlatformPkg\ArmJunoPkg -Ik:\ArmPlatformPkg\ArmJunoPkg\Include -Ik:\EmbeddedPkg -Ik:\EmbeddedPkg\Include -Ik:\MdePkg -Ik:\MdePkg\Include -Ik:\MdePkg\Include\AArch64 -Ik:\MdeModulePkg -Ik:\MdeModulePkg\Include -Ik:\OpenPlatformPkg\Platforms\ARM\Juno\AcpiTablesk:\Build\ArmJuno\DEBUG_GCC5AARCH64OpenPlatformPkg\Platforms\ARM\Juno\AcpiTables\AcpiTables\OUTPUT.\Dsdt.i > k:\Build\ArmJuno\DEBUG_GCC5\AARCH64\OpenPlatformPkg\Platforms\ARM\Juno\AcpiTables\AcpiTables\OUTPUT.\Dsdt.iii
For all GCC versions above, the 1st line of Dsdt.iii lists its name & full path in lowercase:
# 1 "k:\build\armjuno\debug_gcc5\aarch64\openplatformpkg\platforms\arm\juno\acpitables\acpitables\output\dsdt.i"
Compare it with Dsdt.iii after pre-processing by GCC from gcc-linaro-4.9.4-2017.01-i686-mingw32_aarch64-elf release:
# 1 "k:\Build\ArmJuno\DEBUG_GCC49\AARCH64\OpenPlatformPkg\Platforms\ARM\Juno\AcpiTables\AcpiTables\OUTPUT\.\Dsdt.i"
For GCC 5.3.1 & above Dsdt.iiii created by
Trim --source-code -l -o k:\Build\ArmJuno\DEBUG_GCC5\AARCH64\OpenPlatformPkg\Platforms\ARM\Juno\AcpiTables\AcpiTables\OUTPUT.\Dsdt.iiii k:\Build\ArmJuno\DEBUG_GCC5\AARCH64\OpenPlatformPkg\Platforms\ARM\Juno\AcpiTables\AcpiTables\OUTPUT.\Dsdt.iii
has 0 length, which causes iASL compiler to fail with:
Error    6126 -  Input file does not appear to be an ASL or data table source file
We've got a workaround solution for that problem which involves modification of \BaseTools\Conf\build_rule.template:
In ASL section:
[Acpi-Source-Language-File]
    <InputFile>
        ?.asl, ?.Asl, ?.ASL
by replacing 3 lines as below:
<Command.GCC, Command.GCCLD>

#        Trim --asl-file -o $(OUTPUT_DIR)(+)${s_dir}(+)${s_base}.i -i $(INC_LIST) ${src}
#        "$(ASLPP)" $(ASLPP_FLAGS) $(INC) -I${s_path} $(OUTPUT_DIR)(+)${s_dir}(+)${s_base}.i > $(OUTPUT_DIR)(+)${s_dir}(+)${s_base}.iii
#        Trim --source-code -l -o $(OUTPUT_DIR)(+)${s_dir}(+)${s_base}.iiii $(OUTPUT_DIR)(+)${s_dir}(+)${s_base}.iii
        "$(ASLPP)" $(ASLPP_FLAGS) $(INC) -I${s_path} ${src} > $(OUTPUT_DIR)(+)${s_dir}(+)${s_base}.i
        Trim --source-code -l -o $(OUTPUT_DIR)(+)${s_dir}(+)${s_base}.iiii $(OUTPUT_DIR)(+)${s_dir}(+)${s_base}.I
Please share your opinion on that matter.
Alexei.
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