From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D628944C65C; Thu, 6 Aug 2026 15:22:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786029724; cv=none; b=ZvTcuC9Cib10+Bkrc78RNSj1De9lH/njFowGRCFsMW6/N8IhKbB5VViqu8i7ST123mFTjqZ1/EJVFkoxA+DhULRd9yzlDYYG/Fjk/sYTaq/zZqqc3FwI5i7mo39bSfheZ+/gEatK0deT//baigV3KJA/fpybeeFBGojNJHzRtCU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786029724; c=relaxed/simple; bh=LAuNu6btUORQiT0+hUozqw2apavt7T4XjbH5BeZJucU=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=Ws7fm/sJu3NR8deVZhhAOAxFhKeD1lIIuo3qdqOJ72kmuZti3DPKy89EgwdiDijijSpWYX6Ny9qyaZzpmYlnUXDOFpVZegULlkw1w1scky70w2YnpzDbEPm0257ckkXIRDgLpYHS34xfwtgSJqzmjzlSAB1kRbpq8rM8ujmv4NY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=J4ZC6oyb; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="J4ZC6oyb" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5025E1F000E9; Thu, 6 Aug 2026 15:22:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1786029722; bh=Ipmc9Co9/zys60B9FxN6cT0UkdlhDiJDapWUnTN8IP4=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=J4ZC6oybP1GVcGieATyF6neA6jtopaplYjAJFoQXegNkdFw5p53FFkz1UbD0FQbpU V9NXwJSQmlKflx5XAUr4h0qpJF9jCeJxuAX0md3s4AOTYDWhnX7ddx/yxjLNOqyZL0 1STcicbAg67XMjXlL72wk0VMsns33MT8yxurUHrmnGkkF/mOLU9BowMm1r4d7kGjG0 z6mBCNtYxMfrWhLtQyY1j2VN11UkyquLaCzbFWyFkFmZT/xY2qd37OQzp4w26bwm+8 Yy+V2rB0yv+UjDjl1/35FT47KmYpZO6v++POqVwp41LgIcrD1B4MNrqnJ6mnnIgWwE B0RBZQCpPA/RQ== From: "Masami Hiramatsu (Google)" To: Steven Rostedt , Masami Hiramatsu , Jonathan Corbet , Shuah Khan Cc: Mathieu Desnoyers , linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, linux-doc@vger.kernel.org, linux-kselftest@vger.kernel.org Subject: [PATCH v2 2/2] selftests/ftrace: Add boot-time tracing test framework Date: Fri, 7 Aug 2026 00:21:58 +0900 Message-ID: <178602971811.141946.7845996127759581471.stgit@devnote2> X-Mailer: git-send-email 2.43.0 In-Reply-To: <178602969872.141946.3932041319962687996.stgit@devnote2> References: <178602969872.141946.3932041319962687996.stgit@devnote2> User-Agent: StGit/0.19 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit From: Masami Hiramatsu (Google) 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. Assisted-by: Antigravity:gemini-3.6-flash Signed-off-by: Masami Hiramatsu (Google) --- 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 | 4 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 | 264 ++++++++++++++++++++ .../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, 477 insertions(+), 2 deletions(-) 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..f804fdc595db 100644 --- a/tools/testing/selftests/ftrace/Makefile +++ b/tools/testing/selftests/ftrace/Makefile @@ -1,9 +1,9 @@ # SPDX-License-Identifier: GPL-2.0 all: -TEST_PROGS_EXTENDED := ftracetest +TEST_PROGS_EXTENDED := ftracetest boottime/run_boottime_test.sh 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..cecc09b4075e --- /dev/null +++ b/tools/testing/selftests/ftrace/boottime/run_boottime_test.sh @@ -0,0 +1,264 @@ +#!/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)" +KERNEL_SRC="$(cd "$SCRIPT_DIR/../../../../.." && pwd)" + +# Source KTAP helpers +KSELFTEST_DIR="$(cd "$SCRIPT_DIR/../../kselftest" && pwd)" +if [ -f "$KSELFTEST_DIR/ktap_helpers.sh" ]; then + . "$KSELFTEST_DIR/ktap_helpers.sh" +else + echo "Error: ktap_helpers.sh not found at $KSELFTEST_DIR" + exit 1 +fi + +BOOTCONFIG="${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)" + trap 'rm -rf "$workdir"' EXIT + + local rootfs="$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 "$name" + rm -rf "$workdir" + trap - EXIT + return 0 + else + ktap_test_fail "$name" + ktap_print_msg "QEMU Console Output for $name:" + while IFS= read -r line; do + ktap_print_msg "$line" + done < "$logfile" + rm -rf "$workdir" + trap - EXIT + return 1 + fi +} + +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" "$test_script" || true +done + +ktap_finished diff --git a/tools/testing/selftests/ftrace/boottime/tests/01-kprobe.sh b/tools/testing/selftests/ftrace/boottime/tests/01-kprobe.sh new file mode 100755 index 000000000000..a20e7e82d158 --- /dev/null +++ b/tools/testing/selftests/ftrace/boottime/tests/01-kprobe.sh @@ -0,0 +1,18 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0 +# Check kprobe bootconfig settings on tracefs +TRACEDIR="/sys/kernel/tracing" + +if [ ! -d "$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