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Subject: RE: [pkcs11] structure packing on Linux
Hi Daniel, Happy New year to everyone as well! Given Win ARMâs ability to use x86/x64 programs via emulation and to support mixed mode applications (where an ARM application loads and uses an x86/x64 DLL) I strongly recommend using the same structure packing on all Windows platforms regardless of the underlying processor. Essentially, we all have a provider that will work on Windows ARM today, but only if the ARM64EC application that loads it uses the same structure packing. Sincerely, Jonathan From: Daniel Minder <Daniel.Minder@utimaco.com> Jonathan, all, happy new year! As written in the proposal: âIt limits the 1-byte alignment to Windows x86/x64 platforms to achieve backwards compatibility and allows efficient code on other platforms (e.g. ARM).â So, this was on purpose, inspired by e.g. https://devblogs.microsoft.com/oldnewthing/20200103-00/?p=103290 and by Timâs input. But Iâm not insisting on this. We donât have a PKCS#11 provider for Windows on non x86/x64 platforms. What about the other TC members â do you have a provider or do you have Windows software using one on other platforms? And how is packing handled there? Thanks, Daniel From: Jonathan Schulze-Hewett <schulze-hewett@infoseccorp.com> Daniel, The proposal is for Windows on x86 and x86_64 to use structure packing. What about Windows on ARM (or other) processors? Thanks, Jonathan From: pkcs11@lists.oasis-open.org <pkcs11@lists.oasis-open.org> On Behalf Of Daniel Minder Tim, all, based on the discussion with Tim Iâve just uploaded a proposal how to clarify the structure packing text in both the standard and the header files. Bob, please put this on next meetingâs agenda. Thanks! Merry Christmas and enjoy your holidays! Daniel
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