Date: Fri, 2 Aug 2019 17:44:33 -0400 From: Rich Felker <dalias@...c.org> To: musl@...ts.openwall.com Subject: [RFC] final time64 switch-over patch series Final in the sense of "final steps needed", not "final version of patch". These are very much drafts, and subject to change. The time64 commits I've already pushed added time64 syscall backends and removed assumptions that time_t matches the type used by syscalls; the ones attached here deal with changing over the public types in a way compatible with existing code. I'm looking for feedback on all of this. There are particularly a few structs not yet adapted yet, where it's not clear what the best way to lay them out is or how the definition should be selected (based on _REDIR_TIME64 macro? new bits files? a separate macro controlling struct layout? ...). There may be significant mistakes in the time32 compat shims, which would break old binaries but otherwise be inconsequential; it wouldn't result in unfixable ABI breakage. Analysis of possible things that might go wrong even if everything is done right are also welcome at this point. Schedule for going forward with this is open right now. I'm not sure if it makes sense to quickly put out an experimental release with this, marked as experimental in case there turn out to be ABI problems we need to correct, or if it might be better to put out a fairly safe release soon with the internal time64 support changes and other work, and publish time64 switchover patches separately as something users can try applying experimentally. Either 1.1.24 or 1.1.25 should ship with fully 64-bit time_t, though. Rich View attachment "0001-add-time64-symbol-name-redirects-to-public-headers-u.patch" of type "text/plain" (12509 bytes) View attachment "0002-disable-lfs64-aliases-for-remapped-time64-functions.patch" of type "text/plain" (2764 bytes) View attachment "0003-make-fstatat-fill-in-old-time32-stat-fields-too.patch" of type "text/plain" (2014 bytes) View attachment "0004-add-time32-ABI-compat-shims-compat-source-tree.patch" of type "text/plain" (48070 bytes) View attachment "0005-RFC-POC-switch-i386-to-64-bit-time_t.patch" of type "text/plain" (7575 bytes)
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