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* gcc: Drop gcc-cross-initial and use gcc-cross insteadRichard Purdie2018-12-261-7/+45
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We need a libgcc to build glibc. Tranditionally we therefore build a non-threaded and non-shared compiler (gcc-cross-initial), then use that to build libgcc-initial which is used to build glibc which we can then build gcc-cross and libgcc against. Firstly, we can drop the glibc dependency from gcc-cross, *if* we make two changes: a) specify the minimum glibc version to support in a configure option b) create a dummy limits.h file so that later when glibc creates one, the headers structure has support for it. We can do this with a simple empty file Once gcc-cross is libc independent, we can use it to build both libgcc-initial and then later libgcc. libgcc-initial is tricky as we need to imitate the non-threaded and non-shared case. We can do that by hacking the threading mode back to "single" even if gcc reports "posix" and disable libc presence for the libgcc-intial build. We have to create the dummy limits.h to avoid compiler errors from a missing header. glibc will fail to link with libgcc-initial due to a missing "exception handler" capable libgcc (libgcc_eh.a). Since we know glibc doesn't need any exception handler, we can safely symlink to libgcc.a. With those changes, gcc-cross can be used in all places and we only need one build of gcc for each architecture. For some reason ifunc was being disabled on mips prior to these changes but afterwards became enabled but caused assertion failures. This is therefore disabled until we can debug that. (From OE-Core rev: 62b7308b8c4d2b439a15a4f7cbc6f823077bb0be) Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
* glibc/gcc/libgcc-initial: Delete do_build tasks for -initialRichard Purdie2017-04-101-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | We've had a lot of users running into RSS issues where -initial recipes were being installed into sysroots alongside their counterparts and causing overlapping files issues. In general this was through do_build dependencies. Such dependencies are bad in general and I'd encourage people to compare the taskgraphs with using a more specific dependency like do_populate_sysroot, do_image_complete or do_deploy as often the more specific dependency will result in a much cleaner build. Regardless, we don't want -initial dependencies getting in the way like this and there are cases a do_build dependency could make sense. Deleting the do_build task in these cases makes sense since this is not a build "endpoint" we'd ever want a user to use, its a behind the scenes piece of bootstrappping. Unfortunately to make this work, we need a newer bitbake version which has a bitbake bug fixed. (From OE-Core rev: 04c053d42ab05f77b2d1ca93a0fabae44073d57e) Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
* gcc: Split builddir saving into its own sstate taskRichard Purdie2017-01-261-1/+1
| | | | | | | | | | | | | | | | | | When we stashed the gcc build directory for use in generating the various runtimes we were being lazy and just used the staging directory. With recipe specific sysroots this means we're copying a large chunk of data around with the cross compiler which we don't really need in most cases. Separate out the data into its own task and inject this into the configure step. We have to do that here since autotools will wipe out ${B} if it thinks we're rebuilding and we therefore have to time its recreation after that. This also takes the opportunity to remove some pointless (as far as I can tell) conditionals from the do_install code. (From OE-Core rev: dcf15ccf3cc9d55e77228ba8d526f967fc9791b4) Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
* Switch to Recipe Specific SysrootsRichard Purdie2017-01-231-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch is comparatively large and invasive. It does only do one thing, switching the system to build using recipe specific sysroots and where changes could be isolated from it, that has been done. With the current single sysroot approach, its possible for software to find things which aren't in their dependencies. This leads to a determinism problem and is a growing issue in several of the market segments where OE makes sense. The way to solve this problem for OE is to have seperate sysroots for each recipe and these will only contain the dependencies for that recipe. Its worth noting that this is not task specific sysroots and that OE's dependencies do vary enormously by task. This did result in some implementation challenges. There is nothing stopping the implementation of task specific sysroots at some later point based on this work but that as deemed a bridge too far right now. Implementation details: * Rather than installing the sysroot artefacts into a combined sysroots, they are now placed in TMPDIR/sysroot-components/PACKAGE_ARCH/PN. * WORKDIR/recipe-sysroot and WORKDIR/recipe-sysroot-native are built by hardlinking in files from the sysroot-component trees. These new directories are known as RECIPE_SYSROOT and RECIPE_SYSROOT_NATIVE. * This construction is primarily done by a new do_prepare_recipe_sysroot task which runs before do_configure and consists of a call to the extend_recipe_sysroot function. * Other tasks need things in the sysroot before/after this, e.g. do_patch needs quilt-native and do_package_write_deb needs dpkg-native. The code therefore inspects the dependencies for each task and adds extend_recipe_sysroot as a prefunc if it has populate_sysroot dependencies. * We have to do a search/replace 'fixme' operation on the files installed into the sysroot to change hardcoded paths into the correct ones. We create a fixmepath file in the component directory which lists the files which need this operation. * Some files have "postinstall" commands which need to run against them, e.g. gdk-pixbuf each time a new loader is added. These are handled by adding files in bindir with the name prefixed by "postinst-" and are run in each sysroot as its created if they're present. This did mean most sstate postinstalls have to be rewritten but there shouldn't be many of them. * Since a recipe can have multiple tasks and these tasks can run against each other at the same time we have to have a lock when we perform write operations against the sysroot. We also have to maintain manifests of what we install against a task checksum of the dependency. If the checksum changes, we remove its files and then add the new ones. * The autotools logic for filtering the view of m4 files is no longer needed (and was the model for the way extend_recipe_sysroot works). * For autotools, we used to build a combined m4 macros directory which had both the native and target m4 files. We can no longer do this so we use the target sysroot as the default and add the native sysroot as an extra backup include path. If we don't do this, we'd have to build target pkg-config before we could built anything using pkg-config for example (ditto gettext). Such dependencies would be painful so we haven't required that. * PKDDATA_DIR was moved out the sysroot and works as before using sstate to build a hybrid copy for each machine. The paths therefore changed, the behaviour did not. * The ccache class had to be reworked to function with rss. * The TCBOOTSTRAP sysroot for compiler bootstrap is no longer needed but the -initial data does have to be filtered out from the main recipe sysroots. Putting "-initial" in a normal recipe name therefore remains a bad idea. * The logic in insane needed tweaks to deal with the new path layout, as did the debug source file extraction code in package.bbclass. * The logic in sstate.bbclass had to be rewritten since it previously only performed search and replace on extracted sstate and we now need this to happen even if the compiled path was "correct". This in theory could cause a mild performance issue but since the sysroot data was the main data that needed this and we'd have to do it there regardless with rss, I've opted just to change the way the class for everything. The built output used to build the sstate output is now retained and installed rather than deleted. * The search and replace logic used in sstate objects also seemed weak/incorrect and didn't hold up against testing. This has been rewritten too. There are some assumptions made about paths, we save the 'proper' search and replace operations to fixmepath.cmd but then ignore this. What is here works but is a little hardcoded and an area for future improvement. * In order to work with eSDK we need a way to build something that looks like the old style sysroot. "bitbake build-sysroots" will construct such a sysroot based on everything in the components directory that matches the current MACHINE. It will allow transition of external tools and can built target or native variants or both. It also supports a clean task. I'd suggest not relying on this for anything other than transitional purposes though. To see XXX in that sysroot, you'd have to have built that in a previous bitbake invocation. * pseudo is run out of its components directory. This is fine as its statically linked. * The hacks for wayland to see allarch dependencies in the multilib case are no longer needed and can be dropped. * wic needed more extensive changes to work with rss and the fixes are in a separate commit series * Various oe-selftest tweaks were needed since tests did assume the location to binaries and the combined sysroot in several cases. * Most missing dependencies this work found have been sent out as separate patches as they were found but a few tweaks are still included here. * A late addition is that extend_recipe_sysroot became multilib aware and able to populate multilib sysroots. I had hoped not to have to add that complexity but the meta-environment recipe forced my hand. That implementation can probably be neater but this is on the list of things to cleanup later at this point. In summary, the impact people will likely see after this change: * Recipes may fail with missing dependencies, particularly native tools like gettext-native, glib-2.0-native and libxml2.0-native. Some hosts have these installed and will mask these errors * Any recipe/class using SSTATEPOSTINSTFUNCS will need that code rewriting into a postinst * There was a separate patch series dealing with roots postinst native dependency issues. Any postinst which expects native tools at rootfs time will need to mark that dependency with PACKAGE_WRITE_DEPS. There could well be other issues. This has been tested repeatedly against our autobuilders and oe-selftest and issues found have been fixed. We believe at least OE-Core is in good shape but that doesn't mean we've found all the issues. Also, the logging is a bit chatty at the moment. It does help if something goes wrong and goes to the task logfiles, not the console so I've intentionally left this like that for now. We can turn it down easily enough in due course. (From OE-Core rev: 809746f56df4b91af014bf6a3f28997d6698ac78) Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
* SDK: Allow changing SDKMACHINE without wiping TMP folderJuro Bystricky2016-09-281-1/+1
| | | | | | | | | | | | | | | | | | | When changing SDKMACHINE, we may encounter an error forcing us to wipe the TMP folder. Since only SDK_ARCH is captured in the PN of the crosssdk recipes, changes to SDK_OS result in conflicts. Eventually we hit the error: ERROR: ...: The recipe <...> is trying to install files into a shared area when those files already exist. The build has stopped as continuing in this scenario WILL break things This patchset addresses the problem by SDK_SYS as the recipe name suffix instead of SDK_ARCH. [YOCTO #9281] (From OE-Core rev: d2eccccb70e809d482c493922f23aef4409cfd82) Signed-off-by: Juro Bystricky <juro.bystricky@intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
* nopackages: Add class for recipes which don't generate packagesRichard Purdie2015-12-141-0/+1
| | | | | | | | | | | | | | | | It turns out writing the same list of packaging tasks multiple times in multiple places is error prone. Move this to a new class 'nopackages", migrate existing users and add glibc-initial and libgcc-initial since we don't want packages for those recipes. This means the sstate for those recipes won't be installed, saving small amounts of build time and bandwidth. A reference to the old package_write task is also dropped. (From OE-Core rev: cece583d58f82a50c3a4eac876eb326ac3b8f5e5) Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
* libgcc-initial: Correctly reflect libgcc LICENSERichard Purdie2015-04-301-0/+2
| | | | | | | | | | In an effort to clean up some of the license handling, correctly set the LICENSE of libgcc-initial to be the same as libgcc which has a GPLv3 exception. (From OE-Core rev: a3022665600bb3c08f8d4212ffa3516578e86d7c) Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
* binutils/gcc/gdb: Add TARGET_ARCH to PN for all cross recipesRichard Purdie2014-04-301-2/+2
| | | | | | | | | This allows them to co-exist together in the native sysroot, with one set of cross tools per target architecture. (From OE-Core rev: a2c5509520d5c3e082f55844e6545d0309565f8f) Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
* gcc-cross-initial: Separate out libgcc-initialRichard Purdie2014-04-251-0/+16
Its useful to separate out the native (cross) binaries from the target compilation. We already do this for libgcc, this now takes the same approach for -initial. (From OE-Core rev: 8a2aaf8b6bdca2d28c0047093c7f668750d57666) Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>