diff options
| -rw-r--r-- | MAINTAINERS | 1 | ||||
| -rw-r--r-- | tools/testing/selftests/Makefile | 1 | ||||
| -rw-r--r-- | tools/testing/selftests/rseq/.gitignore | 6 | ||||
| -rw-r--r-- | tools/testing/selftests/rseq/Makefile | 30 | ||||
| -rw-r--r-- | tools/testing/selftests/rseq/run_param_test.sh | 121 |
5 files changed, 159 insertions, 0 deletions
diff --git a/MAINTAINERS b/MAINTAINERS index a384243d911b..e743b9dab0c1 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -11986,6 +11986,7 @@ S: Supported F: kernel/rseq.c F: include/uapi/linux/rseq.h F: include/trace/events/rseq.h +F: tools/testing/selftests/rseq/ RFKILL M: Johannes Berg <johannes@sipsolutions.net> diff --git a/tools/testing/selftests/Makefile b/tools/testing/selftests/Makefile index 32aafa92074c..593fb44c9cd4 100644 --- a/tools/testing/selftests/Makefile +++ b/tools/testing/selftests/Makefile @@ -28,6 +28,7 @@ TARGETS += powerpc TARGETS += proc TARGETS += pstore TARGETS += ptrace +TARGETS += rseq TARGETS += seccomp TARGETS += sigaltstack TARGETS += size diff --git a/tools/testing/selftests/rseq/.gitignore b/tools/testing/selftests/rseq/.gitignore new file mode 100644 index 000000000000..cc610da7e369 --- /dev/null +++ b/tools/testing/selftests/rseq/.gitignore @@ -0,0 +1,6 @@ +basic_percpu_ops_test +basic_test +basic_rseq_op_test +param_test +param_test_benchmark +param_test_compare_twice diff --git a/tools/testing/selftests/rseq/Makefile b/tools/testing/selftests/rseq/Makefile new file mode 100644 index 000000000000..c30c52e1d0d2 --- /dev/null +++ b/tools/testing/selftests/rseq/Makefile @@ -0,0 +1,30 @@ +# SPDX-License-Identifier: GPL-2.0+ OR MIT +CFLAGS += -O2 -Wall -g -I./ -I../../../../usr/include/ -L./ -Wl,-rpath=./ +LDLIBS += -lpthread + +# Own dependencies because we only want to build against 1st prerequisite, but +# still track changes to header files and depend on shared object. +OVERRIDE_TARGETS = 1 + +TEST_GEN_PROGS = basic_test basic_percpu_ops_test param_test \ + param_test_benchmark param_test_compare_twice + +TEST_GEN_PROGS_EXTENDED = librseq.so + +TEST_PROGS = run_param_test.sh + +include ../lib.mk + +$(OUTPUT)/librseq.so: rseq.c rseq.h rseq-*.h + $(CC) $(CFLAGS) -shared -fPIC $< $(LDLIBS) -o $@ + +$(OUTPUT)/%: %.c $(TEST_GEN_PROGS_EXTENDED) rseq.h rseq-*.h + $(CC) $(CFLAGS) $< $(LDLIBS) -lrseq -o $@ + +$(OUTPUT)/param_test_benchmark: param_test.c $(TEST_GEN_PROGS_EXTENDED) \ + rseq.h rseq-*.h + $(CC) $(CFLAGS) -DBENCHMARK $< $(LDLIBS) -lrseq -o $@ + +$(OUTPUT)/param_test_compare_twice: param_test.c $(TEST_GEN_PROGS_EXTENDED) \ + rseq.h rseq-*.h + $(CC) $(CFLAGS) -DRSEQ_COMPARE_TWICE $< $(LDLIBS) -lrseq -o $@ diff --git a/tools/testing/selftests/rseq/run_param_test.sh b/tools/testing/selftests/rseq/run_param_test.sh new file mode 100644 index 000000000000..3acd6d75ff9f --- /dev/null +++ b/tools/testing/selftests/rseq/run_param_test.sh @@ -0,0 +1,121 @@ +#!/bin/bash +# SPDX-License-Identifier: GPL-2.0+ or MIT + +EXTRA_ARGS=${@} + +OLDIFS="$IFS" +IFS=$'\n' +TEST_LIST=( + "-T s" + "-T l" + "-T b" + "-T b -M" + "-T m" + "-T m -M" + "-T i" +) + +TEST_NAME=( + "spinlock" + "list" + "buffer" + "buffer with barrier" + "memcpy" + "memcpy with barrier" + "increment" +) +IFS="$OLDIFS" + +REPS=1000 +SLOW_REPS=100 + +function do_tests() +{ + local i=0 + while [ "$i" -lt "${#TEST_LIST[@]}" ]; do + echo "Running test ${TEST_NAME[$i]}" + ./param_test ${TEST_LIST[$i]} -r ${REPS} ${@} ${EXTRA_ARGS} || exit 1 + echo "Running compare-twice test ${TEST_NAME[$i]}" + ./param_test_compare_twice ${TEST_LIST[$i]} -r ${REPS} ${@} ${EXTRA_ARGS} || exit 1 + let "i++" + done +} + +echo "Default parameters" +do_tests + +echo "Loop injection: 10000 loops" + +OLDIFS="$IFS" +IFS=$'\n' +INJECT_LIST=( + "1" + "2" + "3" + "4" + "5" + "6" + "7" + "8" + "9" +) +IFS="$OLDIFS" + +NR_LOOPS=10000 + +i=0 +while [ "$i" -lt "${#INJECT_LIST[@]}" ]; do + echo "Injecting at <${INJECT_LIST[$i]}>" + do_tests -${INJECT_LIST[i]} ${NR_LOOPS} + let "i++" +done +NR_LOOPS= + +function inject_blocking() +{ + OLDIFS="$IFS" + IFS=$'\n' + INJECT_LIST=( + "7" + "8" + "9" + ) + IFS="$OLDIFS" + + NR_LOOPS=-1 + + i=0 + while [ "$i" -lt "${#INJECT_LIST[@]}" ]; do + echo "Injecting at <${INJECT_LIST[$i]}>" + do_tests -${INJECT_LIST[i]} -1 ${@} + let "i++" + done + NR_LOOPS= +} + +echo "Yield injection (25%)" +inject_blocking -m 4 -y + +echo "Yield injection (50%)" +inject_blocking -m 2 -y + +echo "Yield injection (100%)" +inject_blocking -m 1 -y + +echo "Kill injection (25%)" +inject_blocking -m 4 -k + +echo "Kill injection (50%)" +inject_blocking -m 2 -k + +echo "Kill injection (100%)" +inject_blocking -m 1 -k + +echo "Sleep injection (1ms, 25%)" +inject_blocking -m 4 -s 1 + +echo "Sleep injection (1ms, 50%)" +inject_blocking -m 2 -s 1 + +echo "Sleep injection (1ms, 100%)" +inject_blocking -m 1 -s 1 |