linux/poky.git/meta/recipes-kernel/perf, branch uninative-2.8

perf: Correct the substitution of python shebangs

2020-02-22T23:57:27+00:00

To make the native python3 always used, - Use sed one-liner instead - Add substitution for ${S}/scripts/bpf_helpers_doc.py to fix the following warning. File "/usr/lib/python3.6/sysconfig.py", line 421, in _init_posix _temp = __import__(name, globals(), locals(), ['build_time_vars'], 0) ModuleNotFoundError: No module named '_sysconfigdata' This issue is first reported by Joel Stanley The sed one-liner is credited to Anuj Mittal (From OE-Core rev: 3f93173130a94310255389cfc62c67102a4fb21b) Signed-off-by: He Zhe Signed-off-by: Richard Purdie

perf: Pass LDSHARED and CCLD via EXTRA_OEMAKE

2020-01-27T16:48:09+00:00

python code underneath is smart and pokes at python installation in sysroot for compile environment, the overrides from EXTRA_OEMAKE are ofcourse preferred but it falls back to python3's distutils/sysconfig for rest of them, and it does use CCLD and LDSHARED for linking, when we use clang to compile python3 then it encodes these variables to be clang however, when building perf we inherit kernel which forces gcc to be used for compiling perf, which then mixes both compilers due to CCLD and LDSHARED demands. Therefore override CCLD and LDSHARED in make environment helps python/distutils to use right linker (From OE-Core rev: f9259da409c2aa92deb71aef0da2405c8d836615) Signed-off-by: Khem Raj Signed-off-by: Richard Purdie

perf: fix build for v5.5+

2020-01-16T22:33:09+00:00

In kernel 5.5+ there are python3 scripts that explicitly use /usr/bin/python3 as the interpreter. That will find the host python and produce undefined results. We add that interpreter path to our substitutions to ensure that our sysroot variant is used. (From OE-Core rev: 103316d50d4947b3c3500eb5cbc4845702a62d22) Signed-off-by: Bruce Ashfield Signed-off-by: Richard Purdie

perf: drop 'include' copy

2019-11-04T13:39:04+00:00

The copy of the kernel's top level include directory is not required to build perf. We have both the linux-libc-headers and perf's captured/copied headers for what it requires. The copy of the kernel's headers is leading us to multiple smaller fixes to ensure that the various .h files are in sync. We can remove the copy and all of the sync checks, and perf still builds and executes correctly. (From OE-Core rev: 79bfd5515887e5faf315a581d98bda63899760da) Signed-off-by: Bruce Ashfield Signed-off-by: Ross Burton Signed-off-by: Richard Purdie

perf: add 'cap' PACKAGECONFIG

2019-11-04T13:39:04+00:00

perf can use libcap when available, so we add a packageconfig for those that want the support. (From OE-Core rev: 9a35c61d2218e139aa4420ef25f8cf4a0c4c2cfc) Signed-off-by: Bruce Ashfield Signed-off-by: Ross Burton Signed-off-by: Richard Purdie

perf: create directories before copying single files

2019-11-04T13:39:04+00:00

If we need to copy a single file from the linux source tree into the perf source tree, we need to ensure that the directory structure it requires has been created first. (From OE-Core rev: 7c33f0b1ee35031aa97e5e5231f53d8502b583c9) Signed-off-by: Bruce Ashfield Signed-off-by: Ross Burton Signed-off-by: Richard Purdie

perf: fix v5.4+ builds

2019-11-04T13:39:04+00:00

When building perf for 5.4+, we have some new files that need to be copied (and synchronized) due to structural changes in the kernel source tree. Some of the issues these fixes are warnings, but none the less, they are worth fixing. - We copy arch/${ARCH}/Makefile, since it is source by some perf Makefiles - We copy scripts/, since the perf utilities are looking for files in that directory stucture. - We have *three* copies of ctypes.h in the tools/* hierarchy during the build. If the tools/perf/util/include/linux/ variant is used, it will trigger build errors since it is not complete. We copy the kernel's main include/linux/ctype.h to ensure they are in sync. (From OE-Core rev: 6a000d734c2fe57b4a601fe7e7373096345b02b4) Signed-off-by: Bruce Ashfield Signed-off-by: Ross Burton Signed-off-by: Richard Purdie

perf: fix build on kernels which don't have ${S}/tools/include/linux/bits.h

2019-09-16T22:02:45+00:00

* tools/include/linux/bits.h was added in v4.20-rc1 with this commit: commit ba4aa02b417f08a0bee5e7b8ed70cac788a7c854 Author: Arnaldo Carvalho de Melo Date: Tue Sep 25 10:55:59 2018 -0300 tools include: Adopt linux/bits.h * also if you're building for such older kernel you will probably see do_compile failing with: | config/Makefile:448: Missing perl devel files. Disabling perl scripting support, please install perl-ExtUtils-Embed/libperl-dev | config/Makefile:495: Python 3 is not yet supported; please set | config/Makefile:496: PYTHON and/or PYTHON_CONFIG appropriately. easiest work around is to disable scripting PACKAGECONFIG, because since oe-core commit: commit 584af667e0000129bcb5c9e8108485f2f6590eaf Author: Bruce Ashfield Date: Wed Aug 28 22:14:41 2019 -0400 perf: change dependencies on python to python3 The upstream kernel can now handle python3 for the perf scripts, coupled with the impending EOL of python2, we switch the dependencies in perf (scripting) to python3. it now uses python3, but the support for that was added in kernel v4.17-rc1 with: commit 66dfdff03d196e51322c6a85c0d8db8bb2bdd655 Author: Jaroslav Skarvada Date: Fri Jan 19 21:56:41 2018 +0100 perf tools: Add Python 3 support Added Python 3 support while keeping Python 2.7 compatibility. if you really need scripting support than either backport the kernel patch to your kernel or undo the perf recipe changes. (From OE-Core rev: d6ee3d3bdf183a9060b5b0c25b97688a4b9d40dc) Signed-off-by: Martin Jansa Signed-off-by: Ross Burton Signed-off-by: Richard Purdie

perf: v5.3+ build fixes

2019-08-30T16:10:28+00:00

In the 5.3+ perf builds, there are multiple unistd.h files that need to be kept in sync. So not only do we update one, we update both to ensure that libc-headers and the perf build are in sync. perf checks some key files itself to be sure they are in sync, and bits.h can be out of sync. There's no build error that results with bits.h at the moment, but we still make sure they are in sync to avoid the configure/compile warning. (From OE-Core rev: b850ee597e7116cc2a7546853f2b976c891196ef) Signed-off-by: Bruce Ashfield Signed-off-by: Richard Purdie

perf: change dependencies on python to python3

2019-08-30T16:10:28+00:00

The upstream kernel can now handle python3 for the perf scripts, coupled with the impending EOL of python2, we switch the dependencies in perf (scripting) to python3. Outside of dependency changes, we also pass the following two variables to the perf build: PYTHON=python3 PYTHON_CONFIG=python3-config. To ensure that our python3 components are used. For configurations that disable perf scripting, there is no change in behaviour. [YOCTO #13358] (From OE-Core rev: 584af667e0000129bcb5c9e8108485f2f6590eaf) Signed-off-by: Bruce Ashfield Signed-off-by: Richard Purdie