On Sat, 8 Aug 2026 06:44:21 +0900 "Masami Hiramatsu (Google)" <[email protected]> wrote:
> From: Masami Hiramatsu (Google) <[email protected]> > > Add an automated test framework under > tools/testing/selftests/ftrace/boottime/ to verify boot-time tracing > configuration parsing. > > The test runner (run_boottime_test.sh) sources ktap_helpers.sh to > generate output in TAP version 13 format. It builds a minimal > initramfs with busybox, attaches bootconfig examples using > tools/bootconfig/bootconfig, boots QEMU, and runs corresponding > tracefs checker scripts. This needs more fix which Sashiko pointed. But I think I rather like to rewrite this for more generic boot time tracing, including kernel cmdline not only bootconfig, and persistent ring buffer etc. We does not have a functional test for such features in ftracetest, because ftracetest only runs after boot. So let me pick [1/2] and make another series for this test. Thank you, > > Assisted-by: Antigravity:gemini-3.6-flash > Signed-off-by: Masami Hiramatsu (Google) <[email protected]> > > Changes in v3: > - Remove boottime/run_boottime_test.sh from TEST_PROGS_EXTENDED in Makefile > to prevent lib.mk from flattening it into top-level ftrace/ on make > install. > - Support executing run_boottime_test.sh both in-tree and in installed > kselftest environment. > - Add HUP, INT, and TERM signal handlers to tempdir cleanup trap. > - Validate workdir creation and update run_single_test() to return 0 on test > failures so set -e is not suspended by invocation in an AND-OR list. > > Changes in v2: > - Copy shared library dependencies using ldd if busybox is dynamically > linked. > - Wrap QEMU execution with timeout command and add -T/--timeout CLI > option. > - Add pre-flight checks for busybox architecture compatibility and > cpio tool in run_boottime_test.sh. > - Fix POSIX syntax compatibility and allow bypassing HOST_ARCH skip > when custom kernel/QEMU parameters are passed. > - Add boottime/run_boottime_test.sh to TEST_PROGS_EXTENDED in > selftests/ftrace/Makefile. > --- > tools/testing/selftests/ftrace/Makefile | 2 > tools/testing/selftests/ftrace/boottime/Makefile | 10 + > tools/testing/selftests/ftrace/boottime/README | 58 ++++ > .../ftrace/boottime/bootconfigs/01-kprobe.bconf | 5 > .../ftrace/boottime/bootconfigs/02-synth.bconf | 4 > .../ftrace/boottime/bootconfigs/03-eprobe.bconf | 4 > .../ftrace/boottime/bootconfigs/04-fprobe.bconf | 4 > .../ftrace/boottime/bootconfigs/05-tprobe.bconf | 4 > .../ftrace/boottime/bootconfigs/06-instance.bconf | 5 > .../selftests/ftrace/boottime/run_boottime_test.sh | 271 > ++++++++++++++++++++ > .../selftests/ftrace/boottime/tests/01-kprobe.sh | 18 + > .../selftests/ftrace/boottime/tests/02-synth.sh | 18 + > .../selftests/ftrace/boottime/tests/03-eprobe.sh | 18 + > .../selftests/ftrace/boottime/tests/04-fprobe.sh | 18 + > .../selftests/ftrace/boottime/tests/05-tprobe.sh | 18 + > .../selftests/ftrace/boottime/tests/06-instance.sh | 23 ++ > tools/testing/selftests/ftrace/config | 4 > 17 files changed, 483 insertions(+), 1 deletion(-) > create mode 100644 tools/testing/selftests/ftrace/boottime/Makefile > create mode 100644 tools/testing/selftests/ftrace/boottime/README > create mode 100644 > tools/testing/selftests/ftrace/boottime/bootconfigs/01-kprobe.bconf > create mode 100644 > tools/testing/selftests/ftrace/boottime/bootconfigs/02-synth.bconf > create mode 100644 > tools/testing/selftests/ftrace/boottime/bootconfigs/03-eprobe.bconf > create mode 100644 > tools/testing/selftests/ftrace/boottime/bootconfigs/04-fprobe.bconf > create mode 100644 > tools/testing/selftests/ftrace/boottime/bootconfigs/05-tprobe.bconf > create mode 100644 > tools/testing/selftests/ftrace/boottime/bootconfigs/06-instance.bconf > create mode 100755 > tools/testing/selftests/ftrace/boottime/run_boottime_test.sh > create mode 100755 tools/testing/selftests/ftrace/boottime/tests/01-kprobe.sh > create mode 100755 tools/testing/selftests/ftrace/boottime/tests/02-synth.sh > create mode 100755 tools/testing/selftests/ftrace/boottime/tests/03-eprobe.sh > create mode 100755 tools/testing/selftests/ftrace/boottime/tests/04-fprobe.sh > create mode 100755 tools/testing/selftests/ftrace/boottime/tests/05-tprobe.sh > create mode 100755 > tools/testing/selftests/ftrace/boottime/tests/06-instance.sh > > diff --git a/tools/testing/selftests/ftrace/Makefile > b/tools/testing/selftests/ftrace/Makefile > index 7c12263f8260..8d8881744149 100644 > --- a/tools/testing/selftests/ftrace/Makefile > +++ b/tools/testing/selftests/ftrace/Makefile > @@ -3,7 +3,7 @@ all: > > TEST_PROGS_EXTENDED := ftracetest > TEST_PROGS := ftracetest-ktap > -TEST_FILES := test.d settings > +TEST_FILES := test.d settings boottime > EXTRA_CLEAN := $(OUTPUT)/logs/* > > TEST_GEN_FILES := poll > diff --git a/tools/testing/selftests/ftrace/boottime/Makefile > b/tools/testing/selftests/ftrace/boottime/Makefile > new file mode 100644 > index 000000000000..fd0975350f10 > --- /dev/null > +++ b/tools/testing/selftests/ftrace/boottime/Makefile > @@ -0,0 +1,10 @@ > +# SPDX-License-Identifier: GPL-2.0 > + > +all: > + > +run_tests: > + @./run_boottime_test.sh > + > +clean: > + > +.PHONY: all run_tests clean > diff --git a/tools/testing/selftests/ftrace/boottime/README > b/tools/testing/selftests/ftrace/boottime/README > new file mode 100644 > index 000000000000..a6f930a6e44c > --- /dev/null > +++ b/tools/testing/selftests/ftrace/boottime/README > @@ -0,0 +1,58 @@ > +Boot-Time Tracing Test Suite > +============================ > + > +This directory contains an automated test framework to verify kernel > boot-time > +tracing configuration parsing and tracefs application during early boot. > + > +Overview > +-------- > +The test runner (`run_boottime_test.sh`) constructs a lightweight initramfs > with > +busybox and a tracefs checker script from `tests/`, attaches a bootconfig > example > +from `bootconfigs/` using the `bootconfig` tool, boots the target kernel > image under > +QEMU, and reports results according to the TAP version 13 format. > + > +Required Tools > +-------------- > +- Host Architecture: x86 (x86_64/i686/i386/x86; tests skip on non-x86 hosts) > +- `qemu-system-x86_64` (or custom QEMU executable) > +- `busybox` (host binary at `/usr/bin/busybox` or custom path) > +- `bootconfig` (compiled from `tools/bootconfig/bootconfig` or in PATH) > +- `cpio` (standard archiver) > + > +Required Kernel Configurations > +------------------------------ > +The kernel binary under test must be compiled with: > +- `CONFIG_BOOT_CONFIG=y` > +- `CONFIG_BOOTTIME_TRACING=y` > + > +Additional feature-specific config options enable respective testcases: > +- `CONFIG_KPROBE_EVENTS=y` (for `01-kprobe`) > +- `CONFIG_SYNTH_EVENTS=y` (for `02-synth`) > +- `CONFIG_EPROBE_EVENTS=y` (for `03-eprobe`) > +- `CONFIG_FPROBE_EVENTS=y` (for `04-fprobe` and `05-tprobe`) > +- `CONFIG_FUNCTION_TRACER=y` (for tracer options in `06-instance`) > + > +Usage > +----- > +To run all test cases with a compiled kernel image: > + > + $ ./run_boottime_test.sh -k /path/to/bzImage > + > +To run a specific test case (e.g. `01-kprobe`): > + > + $ ./run_boottime_test.sh -k /path/to/bzImage -t 01-kprobe > + > +Customizing Tool Paths: > + > + $ ./run_boottime_test.sh -b /path/to/bootconfig \ > + -k /path/to/bzImage \ > + -q /path/to/qemu-system-x86_64 \ > + -B /path/to/busybox > + > +Environment Variables > +--------------------- > +Tool locations and kernel paths can also be set via environment variables: > +- `BOOTCONFIG`: Path to the `bootconfig` tool > +- `KERNEL`: Path to the `bzImage` kernel binary > +- `QEMU`: Path to the QEMU binary > +- `BUSYBOX`: Path to the `busybox` binary > diff --git > a/tools/testing/selftests/ftrace/boottime/bootconfigs/01-kprobe.bconf > b/tools/testing/selftests/ftrace/boottime/bootconfigs/01-kprobe.bconf > new file mode 100644 > index 000000000000..f607840e3858 > --- /dev/null > +++ b/tools/testing/selftests/ftrace/boottime/bootconfigs/01-kprobe.bconf > @@ -0,0 +1,5 @@ > +ftrace.event.kprobes.vfs_read { > + probes = "vfs_read $arg1 $arg2" > + filter = "common_pid < 200" > + enable > +} > diff --git > a/tools/testing/selftests/ftrace/boottime/bootconfigs/02-synth.bconf > b/tools/testing/selftests/ftrace/boottime/bootconfigs/02-synth.bconf > new file mode 100644 > index 000000000000..b1f37713f33c > --- /dev/null > +++ b/tools/testing/selftests/ftrace/boottime/bootconfigs/02-synth.bconf > @@ -0,0 +1,4 @@ > +ftrace.event.synthetic.boot_lat { > + fields = "unsigned long id", "u64 delta" > + enable > +} > diff --git > a/tools/testing/selftests/ftrace/boottime/bootconfigs/03-eprobe.bconf > b/tools/testing/selftests/ftrace/boottime/bootconfigs/03-eprobe.bconf > new file mode 100644 > index 000000000000..f954aa7fb8bd > --- /dev/null > +++ b/tools/testing/selftests/ftrace/boottime/bootconfigs/03-eprobe.bconf > @@ -0,0 +1,4 @@ > +ftrace.event.eprobes.ep_read { > + probes = "syscalls/sys_enter_openat" > + enable > +} > diff --git > a/tools/testing/selftests/ftrace/boottime/bootconfigs/04-fprobe.bconf > b/tools/testing/selftests/ftrace/boottime/bootconfigs/04-fprobe.bconf > new file mode 100644 > index 000000000000..82ae2ac0629f > --- /dev/null > +++ b/tools/testing/selftests/ftrace/boottime/bootconfigs/04-fprobe.bconf > @@ -0,0 +1,4 @@ > +ftrace.event.fprobes.fp_read { > + probes = "vfs_read" > + enable > +} > diff --git > a/tools/testing/selftests/ftrace/boottime/bootconfigs/05-tprobe.bconf > b/tools/testing/selftests/ftrace/boottime/bootconfigs/05-tprobe.bconf > new file mode 100644 > index 000000000000..02a2803c770a > --- /dev/null > +++ b/tools/testing/selftests/ftrace/boottime/bootconfigs/05-tprobe.bconf > @@ -0,0 +1,4 @@ > +ftrace.event.tracepoints.tp_sched { > + probes = "sched_switch" > + enable > +} > diff --git > a/tools/testing/selftests/ftrace/boottime/bootconfigs/06-instance.bconf > b/tools/testing/selftests/ftrace/boottime/bootconfigs/06-instance.bconf > new file mode 100644 > index 000000000000..31f81da570ea > --- /dev/null > +++ b/tools/testing/selftests/ftrace/boottime/bootconfigs/06-instance.bconf > @@ -0,0 +1,5 @@ > +ftrace.instance.foo { > + event.sched.sched_switch.enable > + buffer_size = 1MB > + tracing_on = 1 > +} > diff --git a/tools/testing/selftests/ftrace/boottime/run_boottime_test.sh > b/tools/testing/selftests/ftrace/boottime/run_boottime_test.sh > new file mode 100755 > index 000000000000..7ba1afc91c35 > --- /dev/null > +++ b/tools/testing/selftests/ftrace/boottime/run_boottime_test.sh > @@ -0,0 +1,271 @@ > +#!/bin/bash > +# SPDX-License-Identifier: GPL-2.0 > +# > +# Boot-time tracing test runner > +# Builds a lightweight initramfs, attaches a bootconfig, boots QEMU, > +# and verifies tracefs configuration using test scripts. > + > +set -e > + > +SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)" > +if [ -d "$SCRIPT_DIR/boottime" ]; then > + SCRIPT_DIR="$SCRIPT_DIR/boottime" > +fi > +KERNEL_SRC="$(cd "$SCRIPT_DIR/../../../../.." && pwd)" > + > +# Source KTAP helpers > +if [ -f "$SCRIPT_DIR/../../kselftest/ktap_helpers.sh" ]; then > + KSELFTEST_DIR="$(cd "$SCRIPT_DIR/../../kselftest" && pwd)" > +elif [ -f "$SCRIPT_DIR/../kselftest/ktap_helpers.sh" ]; then > + KSELFTEST_DIR="$(cd "$SCRIPT_DIR/../kselftest" && pwd)" > +else > + echo "Error: ktap_helpers.sh not found relative to $SCRIPT_DIR" > + exit 1 > +fi > +. "$KSELFTEST_DIR/ktap_helpers.sh" > + > +BOOTCONFIG="${BOOTCONFIG:-"$KERNEL_SRC/tools/bootconfig/bootconfig"}" > +KERNEL="${KERNEL:-"$KERNEL_SRC/arch/x86/boot/bzImage"}" > +QEMU="${QEMU:-"qemu-system-x86_64"}" > +BUSYBOX="${BUSYBOX:-"$(which busybox 2>/dev/null || echo > "/usr/bin/busybox")"}" > +TIMEOUT="${TIMEOUT:-30s}" > +TARGET_TEST="all" > + > +usage() { > + echo "Usage: $0 [options]" > + echo "Options:" > + echo " -b, --bootconfig PATH Path to bootconfig tool (default: > $BOOTCONFIG)" > + echo " -k, --kernel PATH Path to kernel image (default: $KERNEL)" > + echo " -q, --qemu PATH Path to QEMU executable (default: > $QEMU)" > + echo " -B, --busybox PATH Path to busybox binary (default: > $BUSYBOX)" > + echo " -T, --timeout DURATION QEMU execution timeout (default: > $TIMEOUT)" > + echo " -t, --test NAME Run specific test (e.g. 01-kprobe) or > 'all'" > + echo " -h, --help Show this help message" > + exit 1 > +} > + > +while [ $# -gt 0 ]; do > + case "$1" in > + -b|--bootconfig) > + BOOTCONFIG="$2" > + shift 2 > + ;; > + -k|--kernel) > + KERNEL="$2" > + shift 2 > + ;; > + -q|--qemu) > + QEMU="$2" > + shift 2 > + ;; > + -B|--busybox) > + BUSYBOX="$2" > + shift 2 > + ;; > + -T|--timeout) > + TIMEOUT="$2" > + shift 2 > + ;; > + -t|--test) > + TARGET_TEST="$2" > + shift 2 > + ;; > + -h|--help) > + usage > + ;; > + *) > + echo "Unknown option: $1" > + usage > + ;; > + esac > +done > + > +# Check host architecture > +HOST_ARCH="$(uname -m)" > +case "$HOST_ARCH" in > + x86_64|i686|i386|x86) > + ;; > + *) > + if [ "$KERNEL" = "$KERNEL_SRC/arch/x86/boot/bzImage" ]; then > + ktap_print_header > + ktap_skip_all \ > + "Default boot-time tracing test is x86 only > ($HOST_ARCH)" > + exit 0 > + fi > + ;; > +esac > + > +# Ensure bootconfig tool is built if Makefile exists > +if [ ! -x "$BOOTCONFIG" ]; then > + if [ -f "$KERNEL_SRC/tools/bootconfig/Makefile" ]; then > + make -C "$KERNEL_SRC/tools/bootconfig" > /dev/null 2>&1 || true > + fi > + if [ ! -x "$BOOTCONFIG" ]; then > + BOOTCONFIG="$(which bootconfig 2>/dev/null || true)" > + fi > +fi > + > +if [ ! -x "$BOOTCONFIG" ]; then > + ktap_print_header > + ktap_skip_all "bootconfig tool not found at $BOOTCONFIG" > + exit 0 > +fi > + > +if [ ! -f "$KERNEL" ]; then > + ktap_print_header > + ktap_skip_all "Kernel image not found at $KERNEL" > + exit 0 > +fi > + > +if ! command -v "$QEMU" >/dev/null 2>&1; then > + ktap_print_header > + ktap_skip_all "QEMU binary not found: $QEMU" > + exit 0 > +fi > + > +if [ ! -x "$BUSYBOX" ]; then > + ktap_print_header > + ktap_skip_all "busybox binary not found at $BUSYBOX" > + exit 0 > +fi > + > +# Verify busybox architecture compatibility > +if command -v file >/dev/null 2>&1; then > + BUSYBOX_INFO="$(file -b "$BUSYBOX" 2>/dev/null || true)" > + case "$KERNEL" in > + *x86*) > + case "$BUSYBOX_INFO" in > + *x86-64*|*x86_64*|*80386*|*i386*) > + ;; > + *) > + ktap_print_header > + ktap_skip_all "busybox binary > architecture is incompatible with x86 kernel ($BUSYBOX_INFO)" > + exit 0 > + ;; > + esac > + ;; > + esac > +fi > + > +if ! command -v cpio >/dev/null 2>&1; then > + ktap_print_header > + ktap_skip_all "cpio tool not found" > + exit 0 > +fi > + > +run_single_test() { > + local bconf_file="$1" > + local test_script="$2" > + local name="$(basename "$bconf_file" .bconf)" > + > + local workdir="$(mktemp -d)" > + if [ -z "$workdir" ] || [ ! -d "$workdir" ]; then > + ktap_test_fail "$name (failed to create temporary directory)" > + return 0 > + fi > + trap 'rm -rf "$workdir"' EXIT HUP INT TERM > + > + local rootfs="$workdir/rootfs" > + mkdir -p "$rootfs"/{bin,sbin,etc,proc,sys,dev,tmp} > + > + cp "$BUSYBOX" "$rootfs/bin/busybox" > + chmod +x "$rootfs/bin/busybox" > + (cd "$rootfs/bin" && for applet in sh cat mount umount echo sync reboot > \ > + poweroff cpio grep; do ln -s busybox $applet; done) > + > + if command -v ldd >/dev/null 2>&1; then > + for lib in $(ldd "$BUSYBOX" 2>/dev/null | grep -o '/[^ ]*'); do > + if [ -f "$lib" ]; then > + mkdir -p "$rootfs$(dirname "$lib")" > + cp -L "$lib" "$rootfs$lib" 2>/dev/null || true > + fi > + done > + fi > + > + cat << 'EOF' > "$rootfs/init" > +#!/bin/sh > +mount -t proc proc /proc 2>/dev/null > +mount -t sysfs sys /sys 2>/dev/null > +mount -t tracefs nodev /sys/kernel/tracing 2>/dev/null > + > +/bin/check_test.sh > +RET=$? > + > +if [ $RET -eq 0 ]; then > + echo "TEST RESULT: PASS" > +else > + echo "TEST RESULT: FAIL" > +fi > + > +sync > +echo o > /proc/sysrq-trigger 2>/dev/null || reboot -f 2>/dev/null || > poweroff -f 2>/dev/null > +EOF > + chmod +x "$rootfs/init" > + > + cp "$test_script" "$rootfs/bin/check_test.sh" > + chmod +x "$rootfs/bin/check_test.sh" > + > + local initramfs="$workdir/initramfs.cpio" > + (cd "$rootfs" && find . | cpio -o -H newc --quiet) > "$initramfs" > + > + # Attach bootconfig > + "$BOOTCONFIG" -a "$bconf_file" "$initramfs" > /dev/null > + > + # Run QEMU with timeout > + local timeout_cmd="" > + if command -v timeout >/dev/null 2>&1; then > + timeout_cmd="timeout $TIMEOUT" > + fi > + > + local logfile="$workdir/qemu.log" > + $timeout_cmd "$QEMU" -kernel "$KERNEL" \ > + -initrd "$initramfs" \ > + -append "bootconfig console=ttyS0 quiet panic=-1" \ > + -nographic \ > + -no-reboot > "$logfile" 2>&1 || true > + > + if grep -q "TEST RESULT: PASS" "$logfile"; then > + ktap_test_pass "$name" > + else > + ktap_test_fail "$name" > + ktap_print_msg "QEMU Console Output for $name:" > + while IFS= read -r line; do > + ktap_print_msg "$line" > + done < "$logfile" > + fi > + > + rm -rf "$workdir" > + trap - EXIT HUP INT TERM > + return 0 > +} > + > +TEST_FILES=("$SCRIPT_DIR/bootconfigs"/*.bconf) > +TOTAL_TESTS=0 > +for bconf in "${TEST_FILES[@]}"; do > + name="$(basename "$bconf" .bconf)" > + if [ "$TARGET_TEST" != "all" ] && [ "$TARGET_TEST" != "$name" ]; then > + continue > + fi > + TOTAL_TESTS=$((TOTAL_TESTS + 1)) > +done > + > +ktap_print_header > +ktap_set_plan "$TOTAL_TESTS" > + > +for bconf in "${TEST_FILES[@]}"; do > + name="$(basename "$bconf" .bconf)" > + test_script="$SCRIPT_DIR/tests/$name.sh" > + > + if [ "$TARGET_TEST" != "all" ] && [ "$TARGET_TEST" != "$name" ]; then > + continue > + fi > + > + if [ ! -f "$test_script" ]; then > + ktap_test_skip "$name (test script missing)" > + continue > + fi > + > + run_single_test "$bconf" "$test_script" > +done > + > +ktap_finished > diff --git a/tools/testing/selftests/ftrace/boottime/tests/01-kprobe.sh > b/tools/testing/selftests/ftrace/boottime/tests/01-kprobe.sh > new file mode 100755 > index 000000000000..a20e7e82d158 > --- /dev/null > +++ b/tools/testing/selftests/ftrace/boottime/tests/01-kprobe.sh > @@ -0,0 +1,18 @@ > +#!/bin/sh > +# SPDX-License-Identifier: GPL-2.0 > +# Check kprobe bootconfig settings on tracefs > +TRACEDIR="/sys/kernel/tracing" > + > +if [ ! -d "$TRACEDIR/events/kprobes/vfs_read" ]; then > + echo "FAIL: kprobe event kprobes/vfs_read does not exist" > + exit 1 > +fi > + > +ENABLE=$(cat "$TRACEDIR/events/kprobes/vfs_read/enable") > +if [ "$ENABLE" != "1" ]; then > + echo "FAIL: kprobe event kprobes/vfs_read is not enabled ($ENABLE)" > + exit 1 > +fi > + > +echo "PASS: 01-kprobe" > +exit 0 > diff --git a/tools/testing/selftests/ftrace/boottime/tests/02-synth.sh > b/tools/testing/selftests/ftrace/boottime/tests/02-synth.sh > new file mode 100755 > index 000000000000..46d3b152cbea > --- /dev/null > +++ b/tools/testing/selftests/ftrace/boottime/tests/02-synth.sh > @@ -0,0 +1,18 @@ > +#!/bin/sh > +# SPDX-License-Identifier: GPL-2.0 > +# Check synthetic event bootconfig settings on tracefs > +TRACEDIR="/sys/kernel/tracing" > + > +if [ ! -d "$TRACEDIR/events/synthetic/boot_lat" ]; then > + echo "FAIL: synthetic event synthetic/boot_lat does not exist" > + exit 1 > +fi > + > +ENABLE=$(cat "$TRACEDIR/events/synthetic/boot_lat/enable") > +if [ "$ENABLE" != "1" ]; then > + echo "FAIL: synthetic event synthetic/boot_lat is not enabled ($ENABLE)" > + exit 1 > +fi > + > +echo "PASS: 02-synth" > +exit 0 > diff --git a/tools/testing/selftests/ftrace/boottime/tests/03-eprobe.sh > b/tools/testing/selftests/ftrace/boottime/tests/03-eprobe.sh > new file mode 100755 > index 000000000000..108f9ba31c06 > --- /dev/null > +++ b/tools/testing/selftests/ftrace/boottime/tests/03-eprobe.sh > @@ -0,0 +1,18 @@ > +#!/bin/sh > +# SPDX-License-Identifier: GPL-2.0 > +# Check eprobe event bootconfig settings on tracefs > +TRACEDIR="/sys/kernel/tracing" > + > +if [ ! -d "$TRACEDIR/events/eprobes/ep_read" ]; then > + echo "FAIL: eprobe event eprobes/ep_read does not exist" > + exit 1 > +fi > + > +ENABLE=$(cat "$TRACEDIR/events/eprobes/ep_read/enable") > +if [ "$ENABLE" != "1" ]; then > + echo "FAIL: eprobe event eprobes/ep_read is not enabled ($ENABLE)" > + exit 1 > +fi > + > +echo "PASS: 03-eprobe" > +exit 0 > diff --git a/tools/testing/selftests/ftrace/boottime/tests/04-fprobe.sh > b/tools/testing/selftests/ftrace/boottime/tests/04-fprobe.sh > new file mode 100755 > index 000000000000..c0a316bf7dde > --- /dev/null > +++ b/tools/testing/selftests/ftrace/boottime/tests/04-fprobe.sh > @@ -0,0 +1,18 @@ > +#!/bin/sh > +# SPDX-License-Identifier: GPL-2.0 > +# Check fprobe event bootconfig settings on tracefs > +TRACEDIR="/sys/kernel/tracing" > + > +if [ ! -d "$TRACEDIR/events/fprobes/fp_read" ]; then > + echo "FAIL: fprobe event fprobes/fp_read does not exist" > + exit 1 > +fi > + > +ENABLE=$(cat "$TRACEDIR/events/fprobes/fp_read/enable") > +if [ "$ENABLE" != "1" ]; then > + echo "FAIL: fprobe event fprobes/fp_read is not enabled ($ENABLE)" > + exit 1 > +fi > + > +echo "PASS: 04-fprobe" > +exit 0 > diff --git a/tools/testing/selftests/ftrace/boottime/tests/05-tprobe.sh > b/tools/testing/selftests/ftrace/boottime/tests/05-tprobe.sh > new file mode 100755 > index 000000000000..b29119b81e07 > --- /dev/null > +++ b/tools/testing/selftests/ftrace/boottime/tests/05-tprobe.sh > @@ -0,0 +1,18 @@ > +#!/bin/sh > +# SPDX-License-Identifier: GPL-2.0 > +# Check tracepoint probe event bootconfig settings on tracefs > +TRACEDIR="/sys/kernel/tracing" > + > +if [ ! -d "$TRACEDIR/events/tracepoints/tp_sched" ]; then > + echo "FAIL: tracepoint probe event tracepoints/tp_sched does not exist" > + exit 1 > +fi > + > +ENABLE=$(cat "$TRACEDIR/events/tracepoints/tp_sched/enable") > +if [ "$ENABLE" != "1" ]; then > + echo "FAIL: tracepoint probe event tracepoints/tp_sched is not enabled > ($ENABLE)" > + exit 1 > +fi > + > +echo "PASS: 05-tprobe" > +exit 0 > diff --git a/tools/testing/selftests/ftrace/boottime/tests/06-instance.sh > b/tools/testing/selftests/ftrace/boottime/tests/06-instance.sh > new file mode 100755 > index 000000000000..a95fdddaa6a6 > --- /dev/null > +++ b/tools/testing/selftests/ftrace/boottime/tests/06-instance.sh > @@ -0,0 +1,23 @@ > +#!/bin/sh > +# SPDX-License-Identifier: GPL-2.0 > +# Check instance bootconfig settings on tracefs > +TRACEDIR="/sys/kernel/tracing" > + > +if [ ! -d "$TRACEDIR/instances/foo" ]; then > + echo "FAIL: trace instance foo does not exist" > + exit 1 > +fi > + > +if [ ! -d "$TRACEDIR/instances/foo/events/sched/sched_switch" ]; then > + echo "FAIL: event sched_switch does not exist in instance foo" > + exit 1 > +fi > + > +ENABLE=$(cat "$TRACEDIR/instances/foo/events/sched/sched_switch/enable") > +if [ "$ENABLE" != "1" ]; then > + echo "FAIL: event sched_switch is not enabled in instance foo ($ENABLE)" > + exit 1 > +fi > + > +echo "PASS: 06-instance" > +exit 0 > diff --git a/tools/testing/selftests/ftrace/config > b/tools/testing/selftests/ftrace/config > index 544de0db5f58..fec41c6b290e 100644 > --- a/tools/testing/selftests/ftrace/config > +++ b/tools/testing/selftests/ftrace/config > @@ -1,3 +1,5 @@ > +CONFIG_BOOT_CONFIG=y > +CONFIG_BOOTTIME_TRACING=y > CONFIG_BPF_SYSCALL=y > CONFIG_DEBUG_INFO_BTF=y > CONFIG_DEBUG_INFO_DWARF4=y > @@ -8,6 +10,7 @@ CONFIG_FTRACE=y > CONFIG_FTRACE_SYSCALLS=y > CONFIG_FUNCTION_GRAPH_RETVAL=y > CONFIG_FUNCTION_PROFILER=y > +CONFIG_FUNCTION_TRACER=y > CONFIG_HIST_TRIGGERS=y > CONFIG_IRQSOFF_TRACER=y > CONFIG_KALLSYMS_ALL=y > @@ -24,6 +27,7 @@ CONFIG_SAMPLE_TRACE_EVENTS=m > CONFIG_SAMPLE_TRACE_PRINTK=m > CONFIG_SCHED_TRACER=y > CONFIG_STACK_TRACER=y > +CONFIG_SYNTH_EVENTS=y > CONFIG_TRACER_SNAPSHOT=y > CONFIG_UPROBES=y > CONFIG_UPROBE_EVENTS=y > -- Masami Hiramatsu (Google) <[email protected]>
