From mboxrd@z Thu Jan 1 00:00:00 1970 From: Yann E. MORIN Date: Fri, 4 Sep 2020 22:33:58 +0200 Subject: [Buildroot] [PATCH 1/3] package/libcamera: Prevent builds on m68k In-Reply-To: <20200904095148.844292-2-kieran.bingham@ideasonboard.com> References: <20200904095148.844292-1-kieran.bingham@ideasonboard.com> <20200904095148.844292-2-kieran.bingham@ideasonboard.com> Message-ID: <20200904203358.GL14354@scaer> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: buildroot@busybox.net Kieran, All, On 2020-09-04 10:51 +0100, Kieran Bingham spake thusly: > The ControlValue structure is currently defined with a 16-bit hole > (causing unaligned access to the numElements_ field, though that's a > separate topic). > > This structure has a static assertion to ensure that its size does not > change without due care, as it forms part of our ABI and is used in > Serialisation between the pipeline handlers and IPA componenents. > > The m68k architecture is the only target which fails this assertion, > which is likely because it can pack the structure more efficiently, > producing a different binary size. > > This is likely an area we will tackle before stabilising our ABI, but > until then, disable m68k builds as libcamera is not expected to be > supported on this target. > > Signed-off-by: Kieran Bingham Applied to master, after doing the slight adjustments suggested by Thomas: - introduce BR2_PACKAGE_LIBCAMERA_ARCH_SUPPORTS - propagate that to the comment - add autobuilder reference Thanks! Regards, Yann E. MORIN. > --- > package/libcamera/Config.in | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/package/libcamera/Config.in b/package/libcamera/Config.in > index 960d78b82e95..1ea747d1c57e 100644 > --- a/package/libcamera/Config.in > +++ b/package/libcamera/Config.in > @@ -5,6 +5,8 @@ menuconfig BR2_PACKAGE_LIBCAMERA > depends on BR2_TOOLCHAIN_GCC_AT_LEAST_5 # C++14 > depends on !BR2_STATIC_LIBS # gnutls > depends on BR2_USE_WCHAR # gnutls > + # Invalid packing size of ControlValue struct on m68k > + depends on !BR2_m68k > select BR2_PACKAGE_GNUTLS > select BR2_PACKAGE_LIBCAMERA_PIPELINE_UVCVIDEO if !BR2_PACKAGE_LIBCAMERA_HAS_PIPELINE > help > -- > 2.25.1 > > _______________________________________________ > buildroot mailing list > buildroot at busybox.net > http://lists.busybox.net/mailman/listinfo/buildroot -- .-----------------.--------------------.------------------.--------------------. | Yann E. MORIN | Real-Time Embedded | /"\ ASCII RIBBON | Erics' conspiracy: | | +33 662 376 056 | Software Designer | \ / CAMPAIGN | ___ | | +33 561 099 427 `------------.-------: X AGAINST | \e/ There is no | | http://ymorin.is-a-geek.org/ | _/*\_ | / \ HTML MAIL | v conspiracy. | '------------------------------^-------^------------------^--------------------'