From: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
To: buildroot@busybox.net
Subject: [Buildroot] [PATCH v4 03/15] package/uclibc: remove asm constraint
Date: Sat, 22 Jun 2019 21:31:29 +0200 [thread overview]
Message-ID: <20190622213129.256f4756@windsurf> (raw)
In-Reply-To: <20190620100725.105587-4-giulio.benetti@micronovasrl.com>
On Thu, 20 Jun 2019 12:07:13 +0200
Giulio Benetti <giulio.benetti@micronovasrl.com> wrote:
> From: Romain Naour <romain.naour@gmail.com>
>
> uClibc-ng don't build with gcc 9.1 [1] due to a new check that
> "catch illegal asm constraint usage" [2].
>
> gcc 9.1 print this error:
> "invalid hard register usage between earlyclobber operand and input operand"
>
> The asm constraint is present in uClibc since it support sparc (back in 2002)[3].
>
> Note: There is no such constraint is Glibc counterpart code [4].
>
> [1] https://gitlab.com/kubu93/toolchains-builder/-/jobs/205435757
> [2] https://github.com/gcc-mirror/gcc/commit/b782636f28f5c378897c238081d28d7a4a6ca578
> [3] https://cgit.uclibc-ng.org/cgi/cgit/uclibc-ng.git/commit/?id=3b6d086531102b6d09ce852feb1e370d5dca3ce9
> [4] https://sourceware.org/git/?p=glibc.git;a=blob;f=sysdeps/unix/sysv/linux/sparc/sysdep.h;h=981b2a26b7a91093f821c97876e55bc4be2d9f8a;hb=HEAD
>
> Signed-off-by: Romain Naour <romain.naour@gmail.com>
> Cc: Waldemar Brodkorb <wbx@openadk.org>
> Signed-off-by: Giulio Benetti <giulio.benetti@micronovasrl.com>
> ---
> I did not fully analyze the asm code to understand why the constraint is present.
> I lightly tested using qemu_sparc_ss10_defconfig.
> Any help is welcome(Romain)
> ---
> ...arc-syscalls.h-remove-asm-constraint.patch | 46 +++++++++++++++++++
> 1 file changed, 46 insertions(+)
> create mode 100644 package/uclibc/0003-RFC-sparc-syscalls.h-remove-asm-constraint.patch
Since the patch was applied upstream in uclibc-ng, I backported the
uclibc-ng patch. Of course the code is the same, but the file name was
a bit different. Also, I updated the commit log to indicate that we're
talking about a sparc issue.
Applied with those changes. Thanks!
Thomas
--
Thomas Petazzoni, CTO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com
next prev parent reply other threads:[~2019-06-22 19:31 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-20 10:07 [Buildroot] [PATCH v4 00/15] Add gcc 9.1 Giulio Benetti
2019-06-20 10:07 ` [Buildroot] [PATCH v4 01/15] package/glibc/arc: fix build issue with gcc-9.1 Giulio Benetti
2019-06-22 18:58 ` Thomas Petazzoni
2019-06-20 10:07 ` [Buildroot] [PATCH v4 02/15] linux: disable Werror for powerpc kernels Giulio Benetti
2019-06-22 18:59 ` Thomas Petazzoni
2019-06-24 20:15 ` Peter Korsgaard
2019-06-25 3:05 ` Baruch Siach
2019-06-25 6:18 ` Peter Korsgaard
2019-06-20 10:07 ` [Buildroot] [PATCH v4 03/15] package/uclibc: remove asm constraint Giulio Benetti
2019-06-22 19:31 ` Thomas Petazzoni [this message]
2019-06-20 10:07 ` [Buildroot] [PATCH v4 04/15] toolchain: add gcc 9 entry Giulio Benetti
2019-06-22 19:39 ` Thomas Petazzoni
2019-06-20 10:07 ` [Buildroot] [PATCH v4 05/15] package/gcc: add support for gcc 9.1 Giulio Benetti
2019-06-22 19:40 ` Thomas Petazzoni
2019-06-20 10:07 ` [Buildroot] [PATCH v4 06/15] arch: add BR2_ARCH_NEEDS_GCC_AT_LEAST_9 Giulio Benetti
2019-06-22 19:41 ` Thomas Petazzoni
2019-06-23 9:26 ` Peter Korsgaard
2019-06-20 10:07 ` [Buildroot] [PATCH v4 07/15] toolchain-external: add gcc 9 entry Giulio Benetti
2019-06-22 19:42 ` Thomas Petazzoni
2019-06-20 10:07 ` [Buildroot] [PATCH v4 08/15] package/gcc: switch to gcc 8.x as the default Giulio Benetti
2019-06-22 19:44 ` Thomas Petazzoni
2019-06-22 22:35 ` Romain Naour
2019-06-23 16:21 ` Thomas Petazzoni
2019-06-24 6:35 ` Peter Korsgaard
2019-06-25 22:25 ` Arnout Vandecappelle
2019-06-26 6:55 ` Romain Naour
2019-06-26 7:23 ` Thomas Petazzoni
2019-06-26 7:34 ` Romain Naour
2019-06-26 6:55 ` Thomas Petazzoni
2019-06-23 9:29 ` Peter Korsgaard
2019-06-20 10:07 ` [Buildroot] [PATCH v4 09/15] arch/arm: move dependency on 64-bit down to individual cores Giulio Benetti
2019-07-13 21:11 ` Arnout Vandecappelle
2019-06-20 10:07 ` [Buildroot] [PATCH v4 10/15] arch/arm: some cores have a different name with gcc-9 Giulio Benetti
2019-07-13 21:13 ` Arnout Vandecappelle
2019-07-13 21:33 ` Yann E. MORIN
2019-06-20 10:07 ` [Buildroot] [PATCH v4 11/15] arch/arm: saphira is in fact an armv8.4a Giulio Benetti
2019-06-20 10:07 ` [Buildroot] [PATCH v4 12/15] arch/arm: add two new 64-bit-only armv8a cores Giulio Benetti
2019-06-20 10:07 ` [Buildroot] [PATCH v4 13/15] arch/arm: add two new cortex-based armv8.2a cores Giulio Benetti
2019-06-20 10:07 ` [Buildroot] [PATCH v4 14/15] arch/arm: add two new non-cortex-based " Giulio Benetti
2019-07-13 21:22 ` Arnout Vandecappelle
2019-07-13 21:51 ` Yann E. MORIN
2019-06-20 10:07 ` [Buildroot] [PATCH v4 15/15] package/gcc: enable gcc 9.1 for ork1 (openrisc) Giulio Benetti
2019-07-13 21:24 ` Arnout Vandecappelle
2019-07-13 23:57 ` Guo Ren
2019-07-14 8:40 ` Yann E. MORIN
2019-07-14 9:18 ` Guo Ren
2019-07-14 9:39 ` Yann E. MORIN
2019-07-14 10:00 ` Thomas Petazzoni
2019-07-14 10:08 ` Yann E. MORIN
2019-07-14 12:48 ` Romain Naour
2019-07-15 21:55 ` [Buildroot] [arc-buildroot] " Alexey Brodkin
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