[LLVMdev] RFC: Drop support running LLVM on Windows XP (original) (raw)

Martell Malone martellmalone at gmail.com
Fri Jul 31 10:35:27 PDT 2015

I think we should definitely get a note into the weekly update. We may also want to get it into the 3.7 release notes as a warning to users.

+1

As long as the new APIs are also supported on current MinGW-w64 compilers,

I am for this switch. May I also suggest dropping support for mingw.org toolchains for both hosts and targets They are pre windows 7 and only support 32bit x86 targets

mingw-w64 has been maintained to support newer api's and now supports x64 and arm.

On Fri, Jul 31, 2015 at 2:34 PM, Aaron Ballman <aaron at aaronballman.com> wrote:

On Fri, Jul 31, 2015 at 9:09 AM, Greg Bedwell <gregbedwell at gmail.com> wrote: > It sounds like there are no objections to jumping to Windows 7 as the > baseline. Is it worth getting a note added to the next LLVM weekly to give > the potential change a bit of a wider viewership before going ahead with it > or are we in a position to just do this now? If so, what are the actual > mechanics of the change, and who'd like to do it?

I think we should definitely get a note into the weekly update. We may also want to get it into the 3.7 release notes as a warning to users. I suspect we're in a position to make the switch now. As for the mechanics, I'm less certain of all the places we have to touch, but intuition suggests cmake and WindowsSupport.h. ~Aaron > Thanks! > -Greg > > On 14 July 2015 at 06:55, NAKAMURA Takumi <geek4civic at gmail.com> wrote: >> >> +1. We may focus Windows 7, aka NT6.1, as the baseline. >> >> 2015年7月14日(火) 7:48 Aaron Ballman <aaron at aaronballman.com>: >>> >>> On Mon, Jul 13, 2015 at 6:26 PM, Reid Kleckner <rnk at google.com> wrote: >>> > Nobody objected to raising the bar, so I think we can go ahead and do >>> > this. >>> > Keeping the XP support until 3.7 ships seems reasonable as it's less >>> > disruptive. >>> >>> Agreed. >>> >>> > Should we consider bypassing Vista and jumping to 7 as the lowest >>> > supported >>> > Windows version as David suggested? I think we should document 7 as the >>> > recommended baseline. After we start using some of the newer APIs, we >>> > can >>> > see if users complain and evaluate the burden of maintaining Vista >>> > support >>> > at that time. >>> >>> I think it's reasonable to switch to Windows 7 at this point. Vista's >>> mainstream support ended in 2012 and only has extended support until >>> 2017, so it's sunsetting already. >>> >>> ~Aaron >>> >>> > >>> > On Mon, Jul 13, 2015 at 2:28 PM, Greg Bedwell <gregbedwell at gmail.com_ _> >>> > wrote: >>> >> >>> >> Hi all, >>> >> >>> >> It looks like this conversation stalled. I have a local patch that >>> >> I'd >>> >> like to send upstream (automatically generating Windows crash dumps on >>> >> clang/LLVM crashes) that makes use of a Windows API function that >>> >> requires >>> >> WIN32WINNT set to 0x0600 at minimum so I'd like to restart the >>> >> conversation! >>> >> >>> >> As there have so far been no objections that I've seen and we're >>> >> branching >>> >> imminently, it feels like a perfect time to make this change as soon >>> >> as the >>> >> release branch is taken, and adding a release note for 3.7 to the >>> >> effect of >>> >> it being the final version supporting XP. I don't think there's been >>> >> a >>> >> clear conclusion on what we should raise it to though. >>> >> >>> >> Any thoughts on this? >>> >> >>> >> Thanks, >>> >> -Greg >>> >> >>> >> >>> >> On 31 October 2014 at 16:30, Robinson, Paul >>> >> <PaulRobinson at playstation.sony.com> wrote: >>> >>> >>> >>> We formally support our toolchain only on Windows 7 onward, so it's >>> >>> okay >>> >>> with us. >>> >>> >>> >>> (Please make sure this goes in the release notes when you start doing >>> >>> something not supported in XP and/or Vista.) >>> >>> >>> >>> --paulr >>> >>> >>> >>> >>> >>> >>> >>> From: llvmdev-bounces at cs.uiuc.edu >>> >>> [mailto:llvmdev-bounces at cs.uiuc.edu] On >>> >>> Behalf Of Jim Rowan >>> >>> Sent: Friday, October 31, 2014 1:05 PM >>> >>> To: Reid Kleckner >>> >>> Cc: LLVM Developers Mailing List >>> >>> Subject: Re: [LLVMdev] RFC: Drop support running LLVM on Windows XP >>> >>> >>> >>> >>> >>> >>> >>> +1 >>> >>> >>> >>> >>> >>> >>> >>> On Oct 30, 2014, at 3:29 PM, Reid Kleckner wrote: >>> >>> >>> >>> >>> >>> >>> >>> I'd like to raise our baseline Windows system requirements to Vista, >>> >>> dropping support for running LLVM on Windows XP. Microsoft dropped >>> >>> support >>> >>> for XP half a year ago in April 2014. >>> >>> >>> >>> >>> >>> >>> >>> Our current status is that we require VS 2012 to build LLVM, and VS >>> >>> 2012 >>> >>> only runs on Vista+, but it has the ability produce binaries that run >>> >>> on XP. >>> >>> During the C++11-pocalypse, users expressed interest in keeping this >>> >>> working. I'm proposing that we drop support for this. >>> >>> >>> >>> >>> >>> >>> >>> Vista introduced a lot of handy system APIs that could significantly >>> >>> simplify LLVM's Support library. For example, I'd really like to use >>> >>> the >>> >>> blessed one-time initialization routines in this CL: >>> >>> >>> >>> http://reviews.llvm.org/D5922 >>> >>> >>> >>> >>> >>> >>> >>> Vista also introduced a bunch of condition variable APIs that I know >>> >>> less >>> >>> about, but that's another reason we might want to raise our base >>> >>> requirement >>> >>> as people look into parallel LTO and codegen. It also seems likely >>> >>> that we >>> >>> will want to use some of the new C++11 library features that are only >>> >>> present in newer CRTs, which don't run on XP. >>> >>> >>> >>> >>> >>> >>> >>> Please respond if you have any objections. If there are no strong >>> >>> objections, I think we can start using Vista+ APIs in a week or so. >>> >>> We can >>> >>> still change our minds and revert stuff before the release if users >>> >>> feel >>> >>> this is too short notice. >>> >>> _>>> >>> ________________________ >>> >>> LLVM Developers mailing list >>> >>> LLVMdev at cs.uiuc.edu http://llvm.cs.uiuc.edu >>> >>> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, >>> >>> hosted >>> >>> by the Linux Foundation >>> >>> >>> >>> >>> >>> >>> >>> _>>> >>> ________________________ >>> >>> LLVM Developers mailing list >>> >>> LLVMdev at cs.uiuc.edu http://llvm.cs.uiuc.edu >>> >>> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev >>> >>> >>> >> >>> > >>> > _>>> > ________________________ >>> > LLVM Developers mailing list >>> > LLVMdev at cs.uiuc.edu http://llvm.cs.uiuc.edu >>> > http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev >>> > _>>> ________________________ >>> LLVM Developers mailing list >>> LLVMdev at cs.uiuc.edu http://llvm.cs.uiuc.edu >>> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev >> >> _>> ________________________ >> LLVM Developers mailing list >> LLVMdev at cs.uiuc.edu http://llvm.cs.uiuc.edu >> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev >> >

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