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Groups > linux.kernel > #1466892
| From | Al Viro <viro@ZenIV.linux.org.uk> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH] ARC: uaccess: get_user to zero out dest in cause of fault |
| Date | 2016-08-21 03:50 +0200 |
| Message-ID | <s8q3D-2i3-7@gated-at.bofh.it> (permalink) |
| References | (4 earlier) <s8o1P-140-3@gated-at.bofh.it> <s8oEy-1xs-1@gated-at.bofh.it> <s8p7z-1If-1@gated-at.bofh.it> <s8pqW-25n-5@gated-at.bofh.it> <s8pqW-25n-7@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Sat, Aug 20, 2016 at 06:09:15PM -0700, H. Peter Anvin wrote: > >Sorry for the bogus noise. I don't know why I was so convinced setjmp > >needed special gcc semantics. > > > > Linus > > I think the specific name setjmp() is magic in gcc. It is; attribute equivalent is returns_twice. I wonder if "explicitly clobber everything if we got false" + asm volatile to prevent reordering would suffice for our purposes, but that's really a question for gcc folks...
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[PATCH] ARC: uaccess: get_user to zero out dest in cause of fault Vineet Gupta <Vineet.Gupta1@synopsys.com> - 2016-08-19 21:20 +0200
Re: [PATCH] ARC: uaccess: get_user to zero out dest in cause of fault Al Viro <viro@ZenIV.linux.org.uk> - 2016-08-19 23:30 +0200
Re: [PATCH] ARC: uaccess: get_user to zero out dest in cause of fault Linus Torvalds <torvalds@linux-foundation.org> - 2016-08-20 00:10 +0200
Re: [PATCH] ARC: uaccess: get_user to zero out dest in cause of fault Linus Torvalds <torvalds@linux-foundation.org> - 2016-08-20 00:20 +0200
Re: [PATCH] ARC: uaccess: get_user to zero out dest in cause of fault Linus Torvalds <torvalds@linux-foundation.org> - 2016-08-21 01:40 +0200
Re: [PATCH] ARC: uaccess: get_user to zero out dest in cause of fault Al Viro <viro@ZenIV.linux.org.uk> - 2016-08-21 02:20 +0200
Re: [PATCH] ARC: uaccess: get_user to zero out dest in cause of fault Linus Torvalds <torvalds@linux-foundation.org> - 2016-08-21 02:50 +0200
Re: [PATCH] ARC: uaccess: get_user to zero out dest in cause of fault Linus Torvalds <torvalds@linux-foundation.org> - 2016-08-21 03:10 +0200
Re: [PATCH] ARC: uaccess: get_user to zero out dest in cause of fault "H. Peter Anvin" <hpa@zytor.com> - 2016-08-21 03:10 +0200
Re: [PATCH] ARC: uaccess: get_user to zero out dest in cause of fault Al Viro <viro@ZenIV.linux.org.uk> - 2016-08-21 03:50 +0200
Re: [PATCH] ARC: uaccess: get_user to zero out dest in cause of fault Jakub Jelinek <jakub@redhat.com> - 2016-08-21 07:00 +0200
Re: [PATCH] ARC: uaccess: get_user to zero out dest in cause of fault Al Viro <viro@ZenIV.linux.org.uk> - 2016-08-21 08:50 +0200
Re: [PATCH] ARC: uaccess: get_user to zero out dest in cause of fault Linus Torvalds <torvalds@linux-foundation.org> - 2016-08-21 20:00 +0200
Re: [PATCH] ARC: uaccess: get_user to zero out dest in cause of fault Linus Torvalds <torvalds@linux-foundation.org> - 2016-08-23 00:30 +0200
Re: [PATCH] ARC: uaccess: get_user to zero out dest in cause of fault "H. Peter Anvin" <hpa@zytor.com> - 2016-08-23 01:20 +0200
Re: [PATCH] ARC: uaccess: get_user to zero out dest in cause of fault Linus Torvalds <torvalds@linux-foundation.org> - 2016-08-23 01:50 +0200
Re: [PATCH] ARC: uaccess: get_user to zero out dest in cause of fault David Miller <davem@davemloft.net> - 2016-08-23 02:00 +0200
Re: [PATCH] ARC: uaccess: get_user to zero out dest in cause of fault "H. Peter Anvin" <hpa@zytor.com> - 2016-08-23 02:10 +0200
Re: [PATCH] ARC: uaccess: get_user to zero out dest in cause of fault "H. Peter Anvin" <hpa@zytor.com> - 2016-08-23 02:00 +0200
Re: [PATCH] ARC: uaccess: get_user to zero out dest in cause of fault Al Viro <viro@ZenIV.linux.org.uk> - 2016-08-23 02:20 +0200
Re: [PATCH] ARC: uaccess: get_user to zero out dest in cause of fault "H. Peter Anvin" <hpa@zytor.com> - 2016-08-23 01:20 +0200
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