diff mbox

[edk2] BaseTools/EfiRom: supply missing machine type lookup strings

Message ID 20160908195536.4452-1-lersek@redhat.com
State Superseded
Headers show

Commit Message

Laszlo Ersek Sept. 8, 2016, 7:55 p.m. UTC
"EfiRom --dump" does not recognize the 0x8664 machine type:

>   EFI ROM header contents

>     EFI Signature          0x0EF1

>     Compression Type       0x0001 (compressed)

>     Machine type           0x8664 (unknown)

>     Subsystem              0x000B (EFI boot service driver)

>     EFI image offset       0x0050 (@0xF650)


Add lookup strings for the remaining EFI_IMAGE_MACHINE_* numeric macros
that can be found in
"BaseTools/Source/C/Include/IndustryStandard/PeImage.h".

Cc: Liming Gao <liming.gao@intel.com>
Cc: Yonghong Zhu <yonghong.zhu@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>

---
 BaseTools/Source/C/EfiRom/EfiRom.h | 3 +++
 1 file changed, 3 insertions(+)

-- 
2.9.2

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Comments

Ard Biesheuvel Sept. 8, 2016, 8:39 p.m. UTC | #1
On 8 September 2016 at 20:55, Laszlo Ersek <lersek@redhat.com> wrote:
> "EfiRom --dump" does not recognize the 0x8664 machine type:

>

>>   EFI ROM header contents

>>     EFI Signature          0x0EF1

>>     Compression Type       0x0001 (compressed)

>>     Machine type           0x8664 (unknown)

>>     Subsystem              0x000B (EFI boot service driver)

>>     EFI image offset       0x0050 (@0xF650)

>

> Add lookup strings for the remaining EFI_IMAGE_MACHINE_* numeric macros

> that can be found in

> "BaseTools/Source/C/Include/IndustryStandard/PeImage.h".

>

> Cc: Liming Gao <liming.gao@intel.com>

> Cc: Yonghong Zhu <yonghong.zhu@intel.com>

> Contributed-under: TianoCore Contribution Agreement 1.0

> Signed-off-by: Laszlo Ersek <lersek@redhat.com>

> ---

>  BaseTools/Source/C/EfiRom/EfiRom.h | 3 +++

>  1 file changed, 3 insertions(+)

>

> diff --git a/BaseTools/Source/C/EfiRom/EfiRom.h b/BaseTools/Source/C/EfiRom/EfiRom.h

> index 1214700826de..461963b4a701 100644

> --- a/BaseTools/Source/C/EfiRom/EfiRom.h

> +++ b/BaseTools/Source/C/EfiRom/EfiRom.h

> @@ -117,6 +117,9 @@ static STRING_LOOKUP  mMachineTypes[] = {

>    { EFI_IMAGE_MACHINE_IA32, "IA32" },

>    { EFI_IMAGE_MACHINE_IA64, "IA64" },

>    { EFI_IMAGE_MACHINE_EBC, "EBC" },

> +  { EFI_IMAGE_MACHINE_X64, "X64" },

> +  { EFI_IMAGE_MACHINE_ARMT, "ARMT" },


Just 'ARM', please? PE/COFF has multiple machine types for ARM, but
EFI only uses this one for ARM (0x1c2)

With that change,

Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>


Thanks,
Ard.
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Laszlo Ersek Sept. 8, 2016, 9:30 p.m. UTC | #2
On 09/08/16 22:39, Ard Biesheuvel wrote:
> On 8 September 2016 at 20:55, Laszlo Ersek <lersek@redhat.com> wrote:

>> "EfiRom --dump" does not recognize the 0x8664 machine type:

>>

>>>   EFI ROM header contents

>>>     EFI Signature          0x0EF1

>>>     Compression Type       0x0001 (compressed)

>>>     Machine type           0x8664 (unknown)

>>>     Subsystem              0x000B (EFI boot service driver)

>>>     EFI image offset       0x0050 (@0xF650)

>>

>> Add lookup strings for the remaining EFI_IMAGE_MACHINE_* numeric macros

>> that can be found in

>> "BaseTools/Source/C/Include/IndustryStandard/PeImage.h".

>>

>> Cc: Liming Gao <liming.gao@intel.com>

>> Cc: Yonghong Zhu <yonghong.zhu@intel.com>

>> Contributed-under: TianoCore Contribution Agreement 1.0

>> Signed-off-by: Laszlo Ersek <lersek@redhat.com>

>> ---

>>  BaseTools/Source/C/EfiRom/EfiRom.h | 3 +++

>>  1 file changed, 3 insertions(+)

>>

>> diff --git a/BaseTools/Source/C/EfiRom/EfiRom.h b/BaseTools/Source/C/EfiRom/EfiRom.h

>> index 1214700826de..461963b4a701 100644

>> --- a/BaseTools/Source/C/EfiRom/EfiRom.h

>> +++ b/BaseTools/Source/C/EfiRom/EfiRom.h

>> @@ -117,6 +117,9 @@ static STRING_LOOKUP  mMachineTypes[] = {

>>    { EFI_IMAGE_MACHINE_IA32, "IA32" },

>>    { EFI_IMAGE_MACHINE_IA64, "IA64" },

>>    { EFI_IMAGE_MACHINE_EBC, "EBC" },

>> +  { EFI_IMAGE_MACHINE_X64, "X64" },

>> +  { EFI_IMAGE_MACHINE_ARMT, "ARMT" },

> 

> Just 'ARM', please? PE/COFF has multiple machine types for ARM, but

> EFI only uses this one for ARM (0x1c2)

> 

> With that change,

> 

> Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>


I wasn't sure if we wanted to use the edk2 architecture identifiers
here, or the last _FOO substrings from the macro names verbatim.

One fact that supported just picking _FOO is:

"BaseTools/Source/C/Include/IndustryStandard/PeImage.h" has two mappings
for Itanium (different macro name, same replacement text):

#define EFI_IMAGE_MACHINE_IA64      IMAGE_FILE_MACHINE_IA64
#define EFI_IMAGE_MACHINE_IPF       IMAGE_FILE_MACHINE_IA64

The identifier that you can find in the edk2 INF files is IPF, not IA64,
but the above lookup strings include IA64, not IPF. This suggested that
the _FOO suffixes were authoritative, not the arch identifiers that we
use in the DSC / INF etc files.

I'm fine either way, but I would like to hear back from the BaseTools
maintainers too. Because, if we go with ARM, but keep IA64 (rather than
IPF), then that's a (differently) inconsistent situation. And if we
change IA64 to IPF as well, then downstream scripts that presumably
parse the output might break... Fun...

For now I prefer ARMT. Ugly but self-consistent (within the tool). If
Liming / Yonghong agree with you, I'll be happy to repost.

Thanks!
Laszlo
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diff mbox

Patch

diff --git a/BaseTools/Source/C/EfiRom/EfiRom.h b/BaseTools/Source/C/EfiRom/EfiRom.h
index 1214700826de..461963b4a701 100644
--- a/BaseTools/Source/C/EfiRom/EfiRom.h
+++ b/BaseTools/Source/C/EfiRom/EfiRom.h
@@ -117,6 +117,9 @@  static STRING_LOOKUP  mMachineTypes[] = {
   { EFI_IMAGE_MACHINE_IA32, "IA32" },
   { EFI_IMAGE_MACHINE_IA64, "IA64" },
   { EFI_IMAGE_MACHINE_EBC, "EBC" },
+  { EFI_IMAGE_MACHINE_X64, "X64" },
+  { EFI_IMAGE_MACHINE_ARMT, "ARMT" },
+  { EFI_IMAGE_MACHINE_AARCH64, "AARCH64" },
   { 0, NULL }
 };