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author | Bruce Ashfield <bruce.ashfield@windriver.com> | 2010-08-05 16:38:23 -0400 |
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committer | Richard Purdie <rpurdie@linux.intel.com> | 2010-08-09 17:20:36 +0100 |
commit | a924ea57ffd876dabc76d7bfb424b634c022063f (patch) | |
tree | 99389bc3b919021c2bd2bb8e4c66291891542440 | |
parent | 55011c1f4b4c20fa5b91f0b38a2910c3f7a01383 (diff) | |
download | openembedded-core-a924ea57ffd876dabc76d7bfb424b634c022063f.tar.gz openembedded-core-a924ea57ffd876dabc76d7bfb424b634c022063f.tar.bz2 openembedded-core-a924ea57ffd876dabc76d7bfb424b634c022063f.zip |
perf: performance analysis tools for Linux
Performance counters for Linux are a new kernel-based subsystem
that provide a framework for all things performance analysis. It
covers hardware level (CPU/PMU, Performance Monitoring Unit) features
and software features (software counters, tracepoints) as well.
To enforce the coupling between userspace and kernel, this
commit introduces perf as a subpackage of the linux-wrs tree.
perf is built directly inside the kernel tree (and hence picks
up all appropriate patches), but is packaged as a separate
utility that can be added to the rootfs and used to analyze
the kernel.
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
-rw-r--r-- | meta/packages/linux/linux-wrs_git.bb | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/meta/packages/linux/linux-wrs_git.bb b/meta/packages/linux/linux-wrs_git.bb index ddd387743b..4f1808930e 100644 --- a/meta/packages/linux/linux-wrs_git.bb +++ b/meta/packages/linux/linux-wrs_git.bb @@ -95,6 +95,14 @@ do_wrlinux_link_vmlinux() { ln -sf ../../../vmlinux } +do_compile_perf() { + oe_runmake -C ${S}/tools/perf CC="${KERNEL_CC}" LD="${KERNEL_LD}" prefix=${prefix} +} + +do_install_perf() { + oe_runmake -C ${S}/tools/perf CC="${KERNEL_CC}" LD="${KERNEL_LD}" prefix=${prefix} DESTDIR=${D} install +} + do_wrlinux_configme[depends] = "kern-tools-native:do_populate_sysroot" addtask wrlinux_configme before do_configure after do_patch addtask wrlinux_link_vmlinux after do_compile before do_install @@ -104,3 +112,20 @@ inherit kernel # object files are in B, not S, so we need to override this do_deploy[dirs] = "${B}" + +# perf subpackage variables +PROVIDES += perf + +PACKAGES =+ "perf" +FILES_perf = "${bindir}/* \ + ${libexecdir}" + + +# perf tasks +addtask compile_perf after do_compile before do_install +addtask install_perf after do_install before do_deploy + +do_compile_perf[depends] = "glibc:do_populate_sysroot" +do_compile_perf[depends] =+ "elfutils:do_populate_sysroot" +do_compile_perf[depends] =+ "perl:do_populate_sysroot" +do_compile_perf[depends] =+ "python:do_populate_sysroot" |