Date: Fri, 21 May 2021 23:52:04 +0300 From: "Dmitry V. Levin" <ldv@...linux.org> To: Matheus Castanho <msc@...ux.ibm.com> Cc: Florian Weimer <fweimer@...hat.com>, Matheus Castanho via Libc-alpha <libc-alpha@...rceware.org>, Nicholas Piggin <npiggin@...il.com>, musl@...ts.openwall.com, linux-api@...r.kernel.org, libc-dev@...ts.llvm.org, linuxppc-dev@...ts.ozlabs.org Subject: Re: Linux powerpc new system call instruction and ABI On Fri, May 21, 2021 at 05:00:36PM -0300, Matheus Castanho wrote: > Florian Weimer <fweimer@...hat.com> writes: > > * Matheus Castanho via Libc-alpha: > >> From: Nicholas Piggin <npiggin@...il.com> > >> Subject: [PATCH 1/1] powerpc: Fix handling of scv return error codes > >> > >> When using scv on templated ASM syscalls, current code interprets any > >> negative return value as error, but the only valid error codes are in > >> the range -4095..-1 according to the ABI. > >> > >> Reviewed-by: Matheus Castanho <msc@...ux.ibm.com> > > > > Please reference bug 27892 in the commit message. I'd also appreciate a > > backport to the 2.33 release branch (where you need to add NEWS manually > > to add the bug reference). > > No problem. [BZ #27892] appended to the commit title. I'll make sure to > backport to 2.33 as well. Could you also mention in the commit message that the change fixes 'signal.gen.test' strace test where it was observed initially? -- ldv
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