[edk2-devel] JunoPkg ARM build breakage: "Error: bad instruction `aarch64_bti(c)'"
Rebecca Cran
rebecca at bsdio.com
Wed May 10 16:52:22 UTC 2023
Thanks. Yes, that fixes it.
I also tried running the build script with CLANGDWARF, and it seems to
have found some valid problems with
Platform/ARM/Library/ArmShellCmdRunAxf/RunAxf.c
/home/bcran/src/uefi/edk2-platforms/Platform/ARM/Library/ArmShellCmdRunAxf/RunAxf.c:216:11:
error: variable 'FileSize' is used uninitialized whenever 'if' condition
is false [-Werror,-Wsometimes-uninitialized]
if (FileHandle != NULL) {
^~~~~~~~~~~~~~~~~~
/home/bcran/src/uefi/edk2-platforms/Platform/ARM/Library/ArmShellCmdRunAxf/RunAxf.c:281:38:
note: uninitialized use occurs here
WriteBackDataCacheRange (FileData, FileSize);
^~~~~~~~
/home/bcran/src/uefi/edk2-platforms/Platform/ARM/Library/ArmShellCmdRunAxf/RunAxf.c:216:7:
note: remove the 'if' if its condition is always true
if (FileHandle != NULL) {
^~~~~~~~~~~~~~~~~~~~~~~~
/home/bcran/src/uefi/edk2-platforms/Platform/ARM/Library/ArmShellCmdRunAxf/RunAxf.c:179:9:
error: variable 'FileSize' is used uninitialized whenever 'if' condition
is true [-Werror,-Wsometimes-uninitialized]
if ((ShellCommandLineGetFlag (ParamPackage, L"-?")) ||
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/bcran/src/uefi/edk2-platforms/Platform/ARM/Library/ArmShellCmdRunAxf/RunAxf.c:281:38:
note: uninitialized use occurs here
WriteBackDataCacheRange (FileData, FileSize);
^~~~~~~~
/home/bcran/src/uefi/edk2-platforms/Platform/ARM/Library/ArmShellCmdRunAxf/RunAxf.c:179:5:
note: remove the 'if' if its condition is always false
if ((ShellCommandLineGetFlag (ParamPackage, L"-?")) ||
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/bcran/src/uefi/edk2-platforms/Platform/ARM/Library/ArmShellCmdRunAxf/RunAxf.c:179:9:
error: variable 'FileSize' is used uninitialized whenever '||' condition
is true [-Werror,-Wsometimes-uninitialized]
if ((ShellCommandLineGetFlag (ParamPackage, L"-?")) ||
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/bcran/src/uefi/edk2-platforms/Platform/ARM/Library/ArmShellCmdRunAxf/RunAxf.c:281:38:
note: uninitialized use occurs here
WriteBackDataCacheRange (FileData, FileSize);
^~~~~~~~
/home/bcran/src/uefi/edk2-platforms/Platform/ARM/Library/ArmShellCmdRunAxf/RunAxf.c:179:9:
note: remove the '||' if its condition is always false
if ((ShellCommandLineGetFlag (ParamPackage, L"-?")) ||
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/bcran/src/uefi/edk2-platforms/Platform/ARM/Library/ArmShellCmdRunAxf/RunAxf.c:172:7:
error: variable 'FileSize' is used uninitialized whenever 'if' condition
is true [-Werror,-Wsometimes-uninitialized]
if (EFI_ERROR (Status)) {
^~~~~~~~~~~~~~~~~~
/home/bcran/src/uefi/edk2/MdePkg/Include/Uefi/UefiBaseType.h:159:23:
note: expanded from macro 'EFI_ERROR'
#define EFI_ERROR(A) RETURN_ERROR(A)
^~~~~~~~~~~~~~~
/home/bcran/src/uefi/edk2/MdePkg/Include/Base.h:1061:35: note: expanded
from macro 'RETURN_ERROR'
#define RETURN_ERROR(StatusCode) (((INTN)(RETURN_STATUS)(StatusCode)) < 0)
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/bcran/src/uefi/edk2-platforms/Platform/ARM/Library/ArmShellCmdRunAxf/RunAxf.c:281:38:
note: uninitialized use occurs here
WriteBackDataCacheRange (FileData, FileSize);
^~~~~~~~
/home/bcran/src/uefi/edk2-platforms/Platform/ARM/Library/ArmShellCmdRunAxf/RunAxf.c:172:3:
note: remove the 'if' if its condition is always false
if (EFI_ERROR (Status)) {
^~~~~~~~~~~~~~~~~~~~~~~~~
/home/bcran/src/uefi/edk2-platforms/Platform/ARM/Library/ArmShellCmdRunAxf/RunAxf.c:136:39:
note: initialize the variable 'FileSize' to silence this warning
UINTN FileSize;
^
= 0
4 errors generated.
make: *** [GNUmakefile:342:
/home/bcran/src/uefi/Build/ArmJuno/RELEASE_CLANGDWARF/AARCH64/Platform/ARM/Library/ArmShellCmdRunAxf/ArmShellCmdRunAxf/OUTPUT/RunAxf.obj]
Error 1
--
Rebecca Cran
On 5/10/23 10:27, Ard Biesheuvel wrote:
> Hi Rebecca,
>
> On Wed, 10 May 2023 at 18:23, Rebecca Cran <rebecca at bsdio.com> wrote:
>> I ran my script that tries to build all Arm platforms in edk2-platforms
>> (with the exception of known broken ones) with the GCC5/GCC toolchain,
>> and noticed a new breakage since I last ran it a few months ago.
>>
>> Building JunoPkg for ARM doesn't work.
>>
>> I also noticed it passes both -march=armv7-a and -march=armv8-a.
>>
> This looks like a bug in the Juno package - if I grep for aarch64_bti
> in edk2, every single hit is in a aarch64 specific source or header
> file, but it is getting pulled into an ARM build.
>
> Does the below help?
>
> diff --git a/Platform/ARM/Library/ArmShellCmdRunAxf/Arm/Pivot.S
> b/Platform/ARM/Library/ArmShellCmdRunAxf/Arm/Pivot.S
> index 50efcfacdfe6..7d5eed94b25f 100644
> --- a/Platform/ARM/Library/ArmShellCmdRunAxf/Arm/Pivot.S
> +++ b/Platform/ARM/Library/ArmShellCmdRunAxf/Arm/Pivot.S
> @@ -4,7 +4,7 @@
> // SPDX-License-Identifier: BSD-2-Clause-Patent
> //
>
> -#include <AsmMacroIoLibV8.h>
> +#include <AsmMacroIoLib.h>
>
> // VOID
> // RunAxfPivot (
>
>
>
>> "arm-none-eabi-gcc" -march=armv7-a -mfloat-abi=soft -march=armv8-a -c -x
>> assembler -imacros AutoGen.h -mlittle-endian -o
>> /home/bcran/src/uefi/Build/ArmJuno/RELEASE_GCC5/ARM/Platform/ARM/Library/ArmShellCmdRunAxf/ArmShellCmdRunAxf/OUTPUT/Arm/Pivot.obj
>> -I/home/bcran/src/uefi/edk2-platforms/Platform/ARM/Library/ArmShellCmdRunAxf/Arm
>> -I/home/bcran/src/uefi/edk2-platforms/Platform/ARM/Library/ArmShellCmdRunAxf
>> -I/home/bcran/src/uefi/Build/ArmJuno/RELEASE_GCC5/ARM/Platform/ARM/Library/ArmShellCmdRunAxf/ArmShellCmdRunAxf/DEBUG
>> -I/home/bcran/src/uefi/edk2/ArmPkg
>> -I/home/bcran/src/uefi/edk2/ArmPkg/Include
>> -I/home/bcran/src/uefi/edk2/MdeModulePkg
>> -I/home/bcran/src/uefi/edk2/MdeModulePkg/Test/Mock/Include
>> -I/home/bcran/src/uefi/edk2/MdeModulePkg/Include
>> -I/home/bcran/src/uefi/edk2/MdePkg
>> -I/home/bcran/src/uefi/edk2/MdePkg/Include
>> -I/home/bcran/src/uefi/edk2/MdePkg/Test/UnitTest/Include
>> -I/home/bcran/src/uefi/edk2/MdePkg/Test/Mock/Include
>> -I/home/bcran/src/uefi/edk2/MdePkg/Include/Arm
>> -I/home/bcran/src/uefi/edk2-platforms/Platform/ARM
>> -I/home/bcran/src/uefi/edk2-platforms/Platform/ARM/Include
>> -I/home/bcran/src/uefi/edk2/ShellPkg
>> -I/home/bcran/src/uefi/edk2/ShellPkg/Include
>> /home/bcran/src/uefi/Build/ArmJuno/RELEASE_GCC5/ARM/Platform/ARM/Library/ArmShellCmdRunAxf/ArmShellCmdRunAxf/OUTPUT/Arm/Pivot.iiii
>> Trim --trim-long --source-code -o
>> /home/bcran/src/uefi/Build/ArmJuno/RELEASE_GCC5/ARM/MdePkg/Library/BaseMemoryLibOptDxe/BaseMemoryLibOptDxe/OUTPUT/Arm/CopyMem.iiii
>> /home/bcran/src/uefi/Build/ArmJuno/RELEASE_GCC5/ARM/MdePkg/Library/BaseMemoryLibOptDxe/BaseMemoryLibOptDxe/OUTPUT/Arm/CopyMem.ii
>> Trim --trim-long --source-code -o
>> /home/bcran/src/uefi/Build/ArmJuno/RELEASE_GCC5/ARM/ArmPkg/Library/CompilerIntrinsicsLib/CompilerIntrinsicsLib/OUTPUT/Arm/ctzsi2.iiii
>> /home/bcran/src/uefi/Build/ArmJuno/RELEASE_GCC5/ARM/ArmPkg/Library/CompilerIntrinsicsLib/CompilerIntrinsicsLib/OUTPUT/Arm/ctzsi2.ii
>> /home/bcran/src/uefi/Build/ArmJuno/RELEASE_GCC5/ARM/Platform/ARM/Library/ArmShellCmdRunAxf/ArmShellCmdRunAxf/OUTPUT/Arm/Pivot.iiii:
>> Assembler messages:
>> /home/bcran/src/uefi/Build/ArmJuno/RELEASE_GCC5/ARM/Platform/ARM/Library/ArmShellCmdRunAxf/ArmShellCmdRunAxf/OUTPUT/Arm/Pivot.iiii:17:
>> Error: bad instruction `aarch64_bti(c)'
>> make: *** [GNUmakefile:363:
>> /home/bcran/src/uefi/Build/ArmJuno/RELEASE_GCC5/ARM/Platform/ARM/Library/ArmShellCmdRunAxf/ArmShellCmdRunAxf/OUTPUT/Arm/Pivot.obj]
>> Error 1
>>
>>
>> --
>> Rebecca Cran
>>
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