Re: RFC: adding Linux vsyscall-disable and similar backwards-incompatibility flags to ELF headers?

2015-09-02 Thread Brian Gerst
On Tue, Sep 1, 2015 at 10:21 PM, Andy Lutomirski wrote: > On Sep 1, 2015 6:53 PM, "Brian Gerst" wrote: >> >> On Tue, Sep 1, 2015 at 8:51 PM, Andy Lutomirski wrote: >> > Hi all- >> > >> > Linux has a handful of weird features that are

Re: RFC: adding Linux vsyscall-disable and similar backwards-incompatibility flags to ELF headers?

2015-09-02 Thread Andy Lutomirski
On Sep 2, 2015 6:57 AM, "Brian Gerst" wrote: > > On Tue, Sep 1, 2015 at 10:21 PM, Andy Lutomirski wrote: > > On Sep 1, 2015 6:53 PM, "Brian Gerst" wrote: > >> > >> On Tue, Sep 1, 2015 at 8:51 PM, Andy Lutomirski >

Re: [musl] RFC: adding Linux vsyscall-disable and similar backwards-incompatibility flags to ELF headers?

2015-09-02 Thread Austin S Hemmelgarn
On 2015-09-02 00:32, Andy Lutomirski wrote: On Tue, Sep 1, 2015 at 9:18 PM, Rich Felker wrote: On Tue, Sep 01, 2015 at 08:39:27PM -0700, Andy Lutomirski wrote: On Tue, Sep 1, 2015 at 7:54 PM, Rich Felker wrote: If this is not the case, I have what sounds

RFC: adding Linux vsyscall-disable and similar backwards-incompatibility flags to ELF headers?

2015-09-01 Thread Andy Lutomirski
Hi all- Linux has a handful of weird features that are only supported for backwards compatibility. The big one is the x86_64 vsyscall page, but uselib probably belongs on the list, too, and we might end up with more at some point. I'd like to add a way that new programs can turn these features

Re: RFC: adding Linux vsyscall-disable and similar backwards-incompatibility flags to ELF headers?

2015-09-01 Thread Ian Lance Taylor
On Tue, Sep 1, 2015 at 5:51 PM, Andy Lutomirski wrote: > > Linux has a handful of weird features that are only supported for > backwards compatibility. The big one is the x86_64 vsyscall page, but > uselib probably belongs on the list, too, and we might end up with > more at

Re: RFC: adding Linux vsyscall-disable and similar backwards-incompatibility flags to ELF headers?

2015-09-01 Thread Andy Lutomirski
On Sep 1, 2015 6:53 PM, "Brian Gerst" wrote: > > On Tue, Sep 1, 2015 at 8:51 PM, Andy Lutomirski wrote: > > Hi all- > > > > Linux has a handful of weird features that are only supported for > > backwards compatibility. The big one is the x86_64 vsyscall

Re: RFC: adding Linux vsyscall-disable and similar backwards-incompatibility flags to ELF headers?

2015-09-01 Thread Brian Gerst
On Tue, Sep 1, 2015 at 8:51 PM, Andy Lutomirski wrote: > Hi all- > > Linux has a handful of weird features that are only supported for > backwards compatibility. The big one is the x86_64 vsyscall page, but > uselib probably belongs on the list, too, and we might end up with

Re: RFC: adding Linux vsyscall-disable and similar backwards-incompatibility flags to ELF headers?

2015-09-01 Thread Andy Lutomirski
On Sep 1, 2015 6:12 PM, "Ian Lance Taylor" wrote: > > On Tue, Sep 1, 2015 at 5:51 PM, Andy Lutomirski wrote: > > > > Linux has a handful of weird features that are only supported for > > backwards compatibility. The big one is the x86_64 vsyscall page, but

Re: [musl] RFC: adding Linux vsyscall-disable and similar backwards-incompatibility flags to ELF headers?

2015-09-01 Thread Rich Felker
On Tue, Sep 01, 2015 at 05:51:44PM -0700, Andy Lutomirski wrote: > Hi all- > > Linux has a handful of weird features that are only supported for > backwards compatibility. The big one is the x86_64 vsyscall page, but > uselib probably belongs on the list, too, and we might end up with > more at

Re: [musl] RFC: adding Linux vsyscall-disable and similar backwards-incompatibility flags to ELF headers?

2015-09-01 Thread Rich Felker
On Tue, Sep 01, 2015 at 09:32:22PM -0700, Andy Lutomirski wrote: > On Tue, Sep 1, 2015 at 9:18 PM, Rich Felker wrote: > > On Tue, Sep 01, 2015 at 08:39:27PM -0700, Andy Lutomirski wrote: > >> On Tue, Sep 1, 2015 at 7:54 PM, Rich Felker wrote: > >> > On Tue, Sep

Re: [musl] RFC: adding Linux vsyscall-disable and similar backwards-incompatibility flags to ELF headers?

2015-09-01 Thread Rich Felker
On Tue, Sep 01, 2015 at 08:39:27PM -0700, Andy Lutomirski wrote: > On Tue, Sep 1, 2015 at 7:54 PM, Rich Felker wrote: > > On Tue, Sep 01, 2015 at 05:51:44PM -0700, Andy Lutomirski wrote: > >> Hi all- > >> > >> Linux has a handful of weird features that are only supported for > >>

Re: [musl] RFC: adding Linux vsyscall-disable and similar backwards-incompatibility flags to ELF headers?

2015-09-01 Thread Andy Lutomirski
On Tue, Sep 1, 2015 at 9:18 PM, Rich Felker wrote: > On Tue, Sep 01, 2015 at 08:39:27PM -0700, Andy Lutomirski wrote: >> On Tue, Sep 1, 2015 at 7:54 PM, Rich Felker wrote: >> > On Tue, Sep 01, 2015 at 05:51:44PM -0700, Andy Lutomirski wrote: >> >> Hi all- >> >>

Re: [musl] RFC: adding Linux vsyscall-disable and similar backwards-incompatibility flags to ELF headers?

2015-09-01 Thread Andy Lutomirski
On Tue, Sep 1, 2015 at 9:55 PM, Rich Felker wrote: > On Tue, Sep 01, 2015 at 09:32:22PM -0700, Andy Lutomirski wrote: >> On Tue, Sep 1, 2015 at 9:18 PM, Rich Felker wrote: >> > On Tue, Sep 01, 2015 at 08:39:27PM -0700, Andy Lutomirski wrote: >> >> On Tue, Sep 1,

Re: [musl] RFC: adding Linux vsyscall-disable and similar backwards-incompatibility flags to ELF headers?

2015-09-01 Thread Rich Felker
On Tue, Sep 01, 2015 at 10:03:27PM -0700, Andy Lutomirski wrote: > On Tue, Sep 1, 2015 at 9:55 PM, Rich Felker wrote: > > On Tue, Sep 01, 2015 at 09:32:22PM -0700, Andy Lutomirski wrote: > >> On Tue, Sep 1, 2015 at 9:18 PM, Rich Felker wrote: > >> > On Tue, Sep

Re: [musl] RFC: adding Linux vsyscall-disable and similar backwards-incompatibility flags to ELF headers?

2015-09-01 Thread Andy Lutomirski
On Tue, Sep 1, 2015 at 7:54 PM, Rich Felker wrote: > On Tue, Sep 01, 2015 at 05:51:44PM -0700, Andy Lutomirski wrote: >> Hi all- >> >> Linux has a handful of weird features that are only supported for >> backwards compatibility. The big one is the x86_64 vsyscall page, but >>