BinExport is unable to export iOS 15.3.1 kernelcache due to GetOperandByteSize() detecting an invalid operand type

[cutesmilee]

If I try to BinExport the iOS 15.3.1 kernelcache from the iPhone 13 ipsw (here you can find the kernelcache and the IDA database), use the BinDiff plugin or use the standalone BinDiff software (which will use BinExport to first export the database) at some point I get this error: Error exporting: security::binexport::GetOperandByteSize: Invalid operand type (10) at address FFFFFFF00922BC30

I tried to look at the code and seems like it's used to get the size of the operand used, this is the instruction at FFFFFFF00922BC30:
PRFM #0x16, loc_FFFFFFF009183B5C

This error stops BinExport and makes it impossible to diff iOS kernelcaches (it also happens with iOS 15.4 kernelcache from iPhone 13 too, so I think it happens with almost every new kernelcache).

[cutesmilee]

I'm closing this issue since it looks like it's due to new IDA Database format which isn't supported by binexport yet.

[cblichmann]

I do think we should keep this issue. Which version of IDA are you on?

[cutesmilee]

I do think we should keep this issue. Which version of IDA are you on?

this issue happens on IDA Pro 7.6, while IDA Pro 7.5 has no problem.

[cblichmann]

This is fixed in the current version of the code. If you do not want/can't rebuild the BinExport binaries yourself, I have added them as a "prerelease" here: https://github.com/google/binexport/releases/tag/v12-20220522-optypes.
Note: The binaries are signed Universal2 Binaries, but they are not notarized.

On my mac, using IDA 7.7:

writing...
Writing to: "/Users/cblichmann/Desktop/kcache/kcache_15.3.1/kcache_15.3.BinExport".
C:\Users\cutesmilee\Documents\kcache_15.3.1: 2m 28.71s processing, 14.42s writing
C:\Users\cutesmilee\Documents\kcache_15.3.1: exported 119632 functions with 8012147 instructions in 2m 43.21s

[cutesmilee]

This is fixed in the current version of the code. If you do not want/can't rebuild the BinExport binaries yourself, I have added them as a "prerelease" here: https://github.com/google/binexport/releases/tag/v12-20220522-optypes. Note: The binaries are signed Universal2 Binaries, but they are not notarized.

On my mac, using IDA 7.7:

writing...
Writing to: "/Users/cblichmann/Desktop/kcache/kcache_15.3.1/kcache_15.3.BinExport".
C:\Users\cutesmilee\Documents\kcache_15.3.1: 2m 28.71s processing, 14.42s writing
C:\Users\cutesmilee\Documents\kcache_15.3.1: exported 119632 functions with 8012147 instructions in 2m 43.21s

will definitely check it out, thanks!

[cblichmann]

For good measure, this is my .BinExport file: https://drive.google.com/file/d/1Vx3lpPtfh8iWK8yK46Q5FZQiRcdpIRAT/view?usp=sharing