[llvm-dev] [cfe-dev] [8.0.0 Release] One week to the branch

Martin Storsjö via llvm-dev llvm-dev at lists.llvm.org
Thu Jan 24 22:58:36 PST 2019

On Thu, 24 Jan 2019, Hans Wennborg wrote:

> On Thu, Jan 24, 2019 at 2:21 PM Martin Storsjö <martin at martin.st> wrote:
>> On Thu, 24 Jan 2019, Hans Wennborg wrote:
>>> On Thu, Jan 24, 2019 at 3:51 AM Martin Storsjö <martin at martin.st> wrote:
>>>> FWIW, I've got the main COFF functionality that I had planned on doing
>>>> committed in trunk by now. So at least for my own usecases, it's fully
>>>> functional by now. (And for unsupported options, it clearly errors out.)
>>>> If there's an interest in this, it should be easy to backport to the
>>>> release branch (with no regression risk, as I believe none of the patches
>>>> since the branch touch anything outside of the COFF directory), but I
>>>> don't have a direct need myself to have it in the release.
>>> Since it's low-risk and finishing up functionality, if it's just a
>>> small amount of patches we might as well merge it over. Do you have a
>>> list of what commits are involved?
>> In SVN revisions, it's the following:
>> 351657
>> 351658
>> 351659
>> 351660
>> 351661
>> 351662
>> 351663
>> 351799
>> 351800
>> 351801
>> 351811
>> 351931
>> 351934
>> 351946
>> 351947
>> 351948
>> In a git mirror, it's trivial to find these commits with the following
>> command:
>> git log $(git merge-base origin/release_80 master)..master tools/llvm-objcopy/COFF test/tools/llvm-objcopy/COFF
>> Among these commits, there's one cycle of "Implement --add-gnu-debuglink",
>> "Revert 'Implement --add-gnu-debuglink'", "Reapply: Implement
>> --add-gnu-debuglink", "Remove testcase debugging lines. NFC.". If you
>> prefer, you can pick all of them to keep it similar to trunk, or you can
>> just pick the first one of them, since the latter three end up a no-op.
>> (The fix for the issue that caused the revert is in r351934.)
>> Among the commits listed by git, there's one generic llvm-objcopy
>> refactoring that I didn't list above ("Return Error from
>> Buffer::allocate(), [ELF]Writer::finalize(), and [ELF]Writer::commit()"),
>> and the license header change that shouldn't be backported. After
>> backporting the commits to the branch, the diff to the trunk version of
>> the tools/llvm-objcopy/COFF directory is only these two commits.
>> So, not exactly trivial and minimal, but still pretty well isolated.
> Thanks! Yeah, it's a bit of a long list, and since it doesn't seem to
> make a big difference whether this is in 8.0 or not, I think we should
> skip it.

Ok, fair enough. Thanks for your time in any case!

// Martin

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