From: Yann Dirson <y...@blade-group.com>
---
meta/classes/systemtap.bbclass | 74 +++++++++++++++++++
.../systemtap/systemtap-demo_git.bb | 71 ++++++++++++++++++
2 files changed, 145 insertions(+)
create mode 100644 meta/classes/systemtap.bbclass
create mode 100644 meta/recipes-kernel/systemtap/systemtap-demo_git.bb
diff --git a/meta/classes/systemtap.bbclass b/meta/classes/systemtap.bbclass
new file mode 100644
index 0000000000..928202c1ff
--- /dev/null
+++ b/meta/classes/systemtap.bbclass
@@ -0,0 +1,74 @@
+# A bbclass to cross-build systemtap (.stp) scripts and install them
+# suitably for on-target usage with staprun. All compiled .ko files
+# are installed directly in /lib/modules/${KERNEL_VERSION}/systemtap/
+# so their names must be unique.
+
+# FIXME:
+# - cannot handle building a probe several times with different args
+
+# verbosity flags easy to override and amend
+STAP_FLAGS = "-v"
+#STAP_FLAGS += "-B V=1"
+
+# set to "1" to avoid failing on first error
+STAP_WARNONLY = "0"
+
+# Should be absolute (use ${S}, ${WORKDIR}, etc)
+# .stp scripts to be compiled and installed.
+STAP_SCRIPTS ??= ""
+# subset of STAP_SCRIPTS not to compile (exclusion from glob pattern)
+STAP_EXCLUDE_SCRIPTS ??= ""
+
+STAP_OUT ??= "${B}/systemtap"
+
+inherit module-base
+
+DEPENDS += "systemtap-native"
+
+STAPCMD = "stap -p4 ${STAP_FLAGS}"
+STAPCMD += "-a '${ARCH}' -B CROSS_COMPILE='${CROSS_COMPILE}'"
+STAPCMD += "-r '${STAGING_KERNEL_BUILDDIR}'"
+
+# FIXME: most of those should be in the scope of systemtap-native
+STAPCMD += "--sysroot='${RECIPE_SYSROOT}'"
+STAPCMD += "-R '${RECIPE_SYSROOT_NATIVE}${datadir}/systemtap/runtime'"
+STAPCMD += "-I '${RECIPE_SYSROOT_NATIVE}${datadir}/systemtap/tapset'"
+
+## FIXME workaround LDFLAGS not being made for ld
+TARGET_LDFLAGS="-O1 --hash-style=gnu --as-needed"
+
+do_compile_append() {
+ rm -rf ${STAP_OUT}
+ mkdir -p ${STAP_OUT}
+ # expand glob patterns
+ stap_scripts=$(echo ${STAP_SCRIPTS})
+ stap_exclude_scripts=$(echo ${STAP_EXCLUDE_SCRIPTS})
+ for s in ${stap_scripts}; do
+ m=$(basename ${s%.stp})
+ m=$(printf $m | tr -c '[:alnum:]' _)
+ case " ${stap_exclude_scripts} " in
+ *\ $s\ *) continue ;;
+ esac
+ eval extraflags=\${STAP_EXTRAFLAGS_$m}
+ (
+ cd ${STAP_OUT}
+ [ ! -e "$m.ko" ] || bbwarn "compiling $s: $m.ko already exists"
+ if ! ${STAPCMD} ${extraflags} -m "$m" "$s"; then
+ if [ "${STAP_WARNONLY}" = 1 ]; then
+ bbwarn "build failure for $s"
+ else
+ bbfatal "build failure for $s"
+ fi
+ fi
+ )
+ done
+}
+
+do_install_append() {
+ DST=${D}${nonarch_base_libdir}/modules/${KERNEL_VERSION}/systemtap
+ install -d -m755 ${DST}
+ install -m644 ${STAP_OUT}/*.ko ${DST}/
+}
+
+FILES_${PN} += "${nonarch_base_libdir}/modules"
+RRECOMMENDS_${PN} += "systemtap-runtime"
diff --git a/meta/recipes-kernel/systemtap/systemtap-demo_git.bb
b/meta/recipes-kernel/systemtap/systemtap-demo_git.bb
new file mode 100644
index 0000000000..f6b6c40cc1
--- /dev/null
+++ b/meta/recipes-kernel/systemtap/systemtap-demo_git.bb
@@ -0,0 +1,71 @@
+require systemtap_git.inc
+
+# FIXME just to avoid looking for patches we don't care about
+SRC_URI = "git://sourceware.org/git/systemtap.git"
+
+inherit systemtap
+
+STAP_SCRIPTS = "\
+ ${S}/testsuite/systemtap.examples/*/*.stp \
+"
+
+# Many scripts have specific needs, so we don't really care if they don't
build,
+# and there are too many of them to exclude them manually, so we just tell the
build
+# to issue warnings on build failures:
+# - specific kernel symbols, depending on specific kernel config options
+# - files on disk for userspace instrumentation
+# - FIXME but also plain oversights of this packaging (kernel.trace ?)
+STAP_WARNONLY = "1"
+
+export STAP_EXTRAFLAGS_badname = "-g"
+export STAP_EXTRAFLAGS_keyhack = "-g"
+export STAP_EXTRAFLAGS_eatmydata = "-g"
+export STAP_EXTRAFLAGS_ttyspy = "-g"
+
+# those require parameters
+STAP_EXCLUDE_SCRIPTS = "\
+ ${S}/testsuite/systemtap.examples/general/callgraph.stp \
+ ${S}/testsuite/systemtap.examples/general/eventcount.stp \
+ ${S}/testsuite/systemtap.examples/general/func_time_stats.stp \
+ ${S}/testsuite/systemtap.examples/general/para-callgraph-verbose.stp \
+ ${S}/testsuite/systemtap.examples/general/para-callgraph.stp \
+ ${S}/testsuite/systemtap.examples/general/py2example.stp \
+ ${S}/testsuite/systemtap.examples/general/py3example.stp \
+ ${S}/testsuite/systemtap.examples/general/regex.stp \
+ ${S}/testsuite/systemtap.examples/general/sizeof.stp \
+ ${S}/testsuite/systemtap.examples/general/sizeof_interactive.stp \
+ ${S}/testsuite/systemtap.examples/general/varwatch.stp \
+ ${S}/testsuite/systemtap.examples/general/watchdog.stp \
+ ${S}/testsuite/systemtap.examples/general/whythefail.stp \
+ ${S}/testsuite/systemtap.examples/io/deviceseeks.stp \
+ ${S}/testsuite/systemtap.examples/io/inodewatch.stp \
+ ${S}/testsuite/systemtap.examples/io/inodewatch2.stp \
+ ${S}/testsuite/systemtap.examples/io/iostat-scsi.stp \
+ ${S}/testsuite/systemtap.examples/io/traceio2.stp \
+ ${S}/testsuite/systemtap.examples/locks/bkl.stp \
+ ${S}/testsuite/systemtap.examples/memory/hw_watch_addr.stp \
+ ${S}/testsuite/systemtap.examples/memory/hw_watch_sym.stp \
+ ${S}/testsuite/systemtap.examples/network/connect_stat.stp \
+ ${S}/testsuite/systemtap.examples/network/netfilter_drop.stp \
+ ${S}/testsuite/systemtap.examples/process/chng_cpu.stp \
+ ${S}/testsuite/systemtap.examples/process/errsnoop.stp \
+ ${S}/testsuite/systemtap.examples/process/migrate.stp \
+ ${S}/testsuite/systemtap.examples/process/pfiles.stp \
+ ${S}/testsuite/systemtap.examples/process/plimit.stp \
+ ${S}/testsuite/systemtap.examples/process/psig.stp \
+ ${S}/testsuite/systemtap.examples/process/pstrace_exec.stp \
+ ${S}/testsuite/systemtap.examples/process/sigmon.stp \
+ ${S}/testsuite/systemtap.examples/profiling/fntimes.stp \
+ ${S}/testsuite/systemtap.examples/profiling/functioncallcount.stp \
+ ${S}/testsuite/systemtap.examples/profiling/graphcall.stp \
+ ${S}/testsuite/systemtap.examples/profiling/linetimes.stp \
+ ${S}/testsuite/systemtap.examples/profiling/periodic.stp \
+ ${S}/testsuite/systemtap.examples/profiling/sched_switch.stp \
+"
+
+# FIXME what's the problem with those ?
+STAP_EXCLUDE_SCRIPTS += "\
+ ${S}/testsuite/systemtap.examples/interrupt/interrupts-by-dev.stp \
+"
+
+B = "${WORKDIR}/build"
--
2.28.0
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