Date: Sun, 4 Aug 2019 00:31:09 -0400 From: Rich Felker <dalias@...c.org> To: musl@...ts.openwall.com Subject: Re: [RFC] final time64 switch-over patch series On Fri, Aug 02, 2019 at 05:44:33PM -0400, Rich Felker wrote: > >From 3c6bde03ecf2aa7dac605f0a55a1be201f3d4c5f Mon Sep 17 00:00:00 2001 > From: Rich Felker <dalias@...ifal.cx> > Date: Fri, 2 Aug 2019 15:41:27 -0400 > Subject: [PATCH 5/5] [RFC] [POC] switch i386 to 64-bit time_t > > this is a proof of concept for converting one 32-bit arch, i386, to > 64-bit time_t. known issues: > > 1. the switchover of timespec padding is a hack, and needs to be done > right, but that involves making alltypes.h aware of endianness, which > probably should have been done a long time ago anyway and would get > rid of inappropriate inclusion of <endian.h> in some places. > > 2. the rusage, utmpx, and timex structs are not correct with regard to > ABI or functionality. they need to be fixed before this is safe to > use. > > 3. Makefile change should be its own thing. > > there are likely a lot more problems. Add a significant incomplete prerequisite I forgot about: dlsym. There needs to be a redirection for dlsym, and 32-bit archs need a second asm entry point for __dlsym_time64 which first checks the symbol name against the list of time64 redirections and rewrites the request if it's a match. Rich
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