From dc6bf4da825aa0301a46f55fec7c0bb706af2aad Mon Sep 17 00:00:00 2001 From: "Steven Rostedt (VMware)" Date: Mon, 26 Oct 2020 16:20:32 -0400 Subject: selftests/ftrace: Use $FUNCTION_FORK to reference kernel fork function Commit cad6967ac108 ("fork: introduce kernel_clone()") replaced "_do_fork()" with "kernel_clone()". The ftrace selftests reference the fork function in several of the tests. The rename will make the tests break, but if those names are changed in the tests, they would then break on older kernels. The same set of tests should pass older kernels if they have previously passed. Obviously, a new test may not work on older kernels if the test was added due to a bug or a new feature. The setup of ftracetest will now create a $FUNCTION_FORK bash variable that will contain "_do_fork" for older kernels and "kernel_clone" for newer ones. It figures out the proper name by examining /proc/kallsyms. Note, available_filter_functions could also be used, but because some tests should be able to pass without function tracing enabled, it could not be used. Fixes: eea11285dab3 ("tracing: switch to kernel_clone()") Signed-off-by: Steven Rostedt (VMware) Acked-by: Masami Hiramatsu Signed-off-by: Shuah Khan --- .../selftests/ftrace/test.d/dynevent/add_remove_kprobe.tc | 2 +- .../ftrace/test.d/dynevent/clear_select_events.tc | 2 +- .../ftrace/test.d/dynevent/generic_clear_event.tc | 2 +- .../ftrace/test.d/ftrace/func-filter-notrace-pid.tc | 2 +- .../selftests/ftrace/test.d/ftrace/func-filter-pid.tc | 2 +- .../ftrace/test.d/ftrace/func-filter-stacktrace.tc | 4 ++-- tools/testing/selftests/ftrace/test.d/functions | 7 +++++++ .../selftests/ftrace/test.d/kprobe/add_and_remove.tc | 2 +- tools/testing/selftests/ftrace/test.d/kprobe/busy_check.tc | 2 +- .../testing/selftests/ftrace/test.d/kprobe/kprobe_args.tc | 4 ++-- .../selftests/ftrace/test.d/kprobe/kprobe_args_comm.tc | 2 +- .../selftests/ftrace/test.d/kprobe/kprobe_args_string.tc | 4 ++-- .../selftests/ftrace/test.d/kprobe/kprobe_args_symbol.tc | 10 +++++----- .../selftests/ftrace/test.d/kprobe/kprobe_args_type.tc | 2 +- .../selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc | 14 +++++++------- .../selftests/ftrace/test.d/kprobe/kprobe_multiprobe.tc | 2 +- .../selftests/ftrace/test.d/kprobe/kprobe_syntax_errors.tc | 12 ++++++------ .../selftests/ftrace/test.d/kprobe/kretprobe_args.tc | 4 ++-- tools/testing/selftests/ftrace/test.d/kprobe/profile.tc | 2 +- 19 files changed, 44 insertions(+), 37 deletions(-) (limited to 'tools') diff --git a/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_kprobe.tc b/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_kprobe.tc index 3bcd4c3624ee..b4da41d126d5 100644 --- a/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_kprobe.tc +++ b/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_kprobe.tc @@ -6,7 +6,7 @@ echo 0 > events/enable echo > dynamic_events -PLACE=kernel_clone +PLACE=$FUNCTION_FORK echo "p:myevent1 $PLACE" >> dynamic_events echo "r:myevent2 $PLACE" >> dynamic_events diff --git a/tools/testing/selftests/ftrace/test.d/dynevent/clear_select_events.tc b/tools/testing/selftests/ftrace/test.d/dynevent/clear_select_events.tc index 438961971b7e..3a0e2885fff5 100644 --- a/tools/testing/selftests/ftrace/test.d/dynevent/clear_select_events.tc +++ b/tools/testing/selftests/ftrace/test.d/dynevent/clear_select_events.tc @@ -6,7 +6,7 @@ echo 0 > events/enable echo > dynamic_events -PLACE=kernel_clone +PLACE=$FUNCTION_FORK setup_events() { echo "p:myevent1 $PLACE" >> dynamic_events diff --git a/tools/testing/selftests/ftrace/test.d/dynevent/generic_clear_event.tc b/tools/testing/selftests/ftrace/test.d/dynevent/generic_clear_event.tc index a8603bd23e0d..d3e138e8377f 100644 --- a/tools/testing/selftests/ftrace/test.d/dynevent/generic_clear_event.tc +++ b/tools/testing/selftests/ftrace/test.d/dynevent/generic_clear_event.tc @@ -6,7 +6,7 @@ echo 0 > events/enable echo > dynamic_events -PLACE=kernel_clone +PLACE=$FUNCTION_FORK setup_events() { echo "p:myevent1 $PLACE" >> dynamic_events diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-notrace-pid.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-notrace-pid.tc index acb17ce543d2..80541964b927 100644 --- a/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-notrace-pid.tc +++ b/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-notrace-pid.tc @@ -39,7 +39,7 @@ do_test() { disable_tracing echo do_execve* > set_ftrace_filter - echo *do_fork >> set_ftrace_filter + echo $FUNCTION_FORK >> set_ftrace_filter echo $PID > set_ftrace_notrace_pid echo function > current_tracer diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-pid.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-pid.tc index 9f0a9687c773..2f7211254529 100644 --- a/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-pid.tc +++ b/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-pid.tc @@ -39,7 +39,7 @@ do_test() { disable_tracing echo do_execve* > set_ftrace_filter - echo *do_fork >> set_ftrace_filter + echo $FUNCTION_FORK >> set_ftrace_filter echo $PID > set_ftrace_pid echo function > current_tracer diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-stacktrace.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-stacktrace.tc index 98305d76bd04..191d116b7883 100644 --- a/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-stacktrace.tc +++ b/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-stacktrace.tc @@ -4,9 +4,9 @@ # requires: set_ftrace_filter # flags: instance -echo kernel_clone:stacktrace >> set_ftrace_filter +echo $FUNCTION_FORK:stacktrace >> set_ftrace_filter -grep -q "kernel_clone:stacktrace:unlimited" set_ftrace_filter +grep -q "$FUNCTION_FORK:stacktrace:unlimited" set_ftrace_filter (echo "forked"; sleep 1) diff --git a/tools/testing/selftests/ftrace/test.d/functions b/tools/testing/selftests/ftrace/test.d/functions index c5dec55b7d95..a6fac927ee82 100644 --- a/tools/testing/selftests/ftrace/test.d/functions +++ b/tools/testing/selftests/ftrace/test.d/functions @@ -133,6 +133,13 @@ yield() { ping $LOCALHOST -c 1 || sleep .001 || usleep 1 || sleep 1 } +# The fork function in the kernel was renamed from "_do_fork" to +# "kernel_fork". As older tests should still work with older kernels +# as well as newer kernels, check which version of fork is used on this +# kernel so that the tests can use the fork function for the running kernel. +FUNCTION_FORK=`(if grep '\bkernel_clone\b' /proc/kallsyms > /dev/null; then + echo kernel_clone; else echo '_do_fork'; fi)` + # Since probe event command may include backslash, explicitly use printf "%s" # to NOT interpret it. ftrace_errlog_check() { # err-prefix command-with-error-pos-by-^ command-file diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/add_and_remove.tc b/tools/testing/selftests/ftrace/test.d/kprobe/add_and_remove.tc index 9737cd0578a7..2428a3ed78c9 100644 --- a/tools/testing/selftests/ftrace/test.d/kprobe/add_and_remove.tc +++ b/tools/testing/selftests/ftrace/test.d/kprobe/add_and_remove.tc @@ -3,7 +3,7 @@ # description: Kprobe dynamic event - adding and removing # requires: kprobe_events -echo p:myevent kernel_clone > kprobe_events +echo p:myevent $FUNCTION_FORK > kprobe_events grep myevent kprobe_events test -d events/kprobes/myevent echo > kprobe_events diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/busy_check.tc b/tools/testing/selftests/ftrace/test.d/kprobe/busy_check.tc index f9a40af76888..010a8b1d6c1d 100644 --- a/tools/testing/selftests/ftrace/test.d/kprobe/busy_check.tc +++ b/tools/testing/selftests/ftrace/test.d/kprobe/busy_check.tc @@ -3,7 +3,7 @@ # description: Kprobe dynamic event - busy event check # requires: kprobe_events -echo p:myevent kernel_clone > kprobe_events +echo p:myevent $FUNCTION_FORK > kprobe_events test -d events/kprobes/myevent echo 1 > events/kprobes/myevent/enable echo > kprobe_events && exit_fail # this must fail diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args.tc index eb543d3cfe5f..a96a1dc7014f 100644 --- a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args.tc +++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args.tc @@ -3,13 +3,13 @@ # description: Kprobe dynamic event with arguments # requires: kprobe_events -echo 'p:testprobe kernel_clone $stack $stack0 +0($stack)' > kprobe_events +echo "p:testprobe $FUNCTION_FORK \$stack \$stack0 +0(\$stack)" > kprobe_events grep testprobe kprobe_events | grep -q 'arg1=\$stack arg2=\$stack0 arg3=+0(\$stack)' test -d events/kprobes/testprobe echo 1 > events/kprobes/testprobe/enable ( echo "forked") -grep testprobe trace | grep 'kernel_clone' | \ +grep testprobe trace | grep "$FUNCTION_FORK" | \ grep -q 'arg1=0x[[:xdigit:]]* arg2=0x[[:xdigit:]]* arg3=0x[[:xdigit:]]*$' echo 0 > events/kprobes/testprobe/enable diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_comm.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_comm.tc index 4e5b63be51c9..a053ee2e7d77 100644 --- a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_comm.tc +++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_comm.tc @@ -5,7 +5,7 @@ grep -A1 "fetcharg:" README | grep -q "\$comm" || exit_unsupported # this is too old -echo 'p:testprobe kernel_clone comm=$comm ' > kprobe_events +echo "p:testprobe $FUNCTION_FORK comm=\$comm " > kprobe_events grep testprobe kprobe_events | grep -q 'comm=$comm' test -d events/kprobes/testprobe diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_string.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_string.tc index a1d70588ab21..84285a6f60b0 100644 --- a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_string.tc +++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_string.tc @@ -30,13 +30,13 @@ esac : "Test get argument (1)" echo "p:testprobe tracefs_create_dir arg1=+0(${ARG1}):string" > kprobe_events echo 1 > events/kprobes/testprobe/enable -echo "p:test kernel_clone" >> kprobe_events +echo "p:test $FUNCTION_FORK" >> kprobe_events grep -qe "testprobe.* arg1=\"test\"" trace echo 0 > events/kprobes/testprobe/enable : "Test get argument (2)" echo "p:testprobe tracefs_create_dir arg1=+0(${ARG1}):string arg2=+0(${ARG1}):string" > kprobe_events echo 1 > events/kprobes/testprobe/enable -echo "p:test kernel_clone" >> kprobe_events +echo "p:test $FUNCTION_FORK" >> kprobe_events grep -qe "testprobe.* arg1=\"test\" arg2=\"test\"" trace diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_symbol.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_symbol.tc index bd25dd0ba0d0..717130ed4feb 100644 --- a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_symbol.tc +++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_symbol.tc @@ -14,12 +14,12 @@ elif ! grep "$SYMBOL\$" /proc/kallsyms; then fi : "Test get basic types symbol argument" -echo "p:testprobe_u kernel_clone arg1=@linux_proc_banner:u64 arg2=@linux_proc_banner:u32 arg3=@linux_proc_banner:u16 arg4=@linux_proc_banner:u8" > kprobe_events -echo "p:testprobe_s kernel_clone arg1=@linux_proc_banner:s64 arg2=@linux_proc_banner:s32 arg3=@linux_proc_banner:s16 arg4=@linux_proc_banner:s8" >> kprobe_events +echo "p:testprobe_u $FUNCTION_FORK arg1=@linux_proc_banner:u64 arg2=@linux_proc_banner:u32 arg3=@linux_proc_banner:u16 arg4=@linux_proc_banner:u8" > kprobe_events +echo "p:testprobe_s $FUNCTION_FORK arg1=@linux_proc_banner:s64 arg2=@linux_proc_banner:s32 arg3=@linux_proc_banner:s16 arg4=@linux_proc_banner:s8" >> kprobe_events if grep -q "x8/16/32/64" README; then - echo "p:testprobe_x kernel_clone arg1=@linux_proc_banner:x64 arg2=@linux_proc_banner:x32 arg3=@linux_proc_banner:x16 arg4=@linux_proc_banner:x8" >> kprobe_events + echo "p:testprobe_x $FUNCTION_FORK arg1=@linux_proc_banner:x64 arg2=@linux_proc_banner:x32 arg3=@linux_proc_banner:x16 arg4=@linux_proc_banner:x8" >> kprobe_events fi -echo "p:testprobe_bf kernel_clone arg1=@linux_proc_banner:b8@4/32" >> kprobe_events +echo "p:testprobe_bf $FUNCTION_FORK arg1=@linux_proc_banner:b8@4/32" >> kprobe_events echo 1 > events/kprobes/enable (echo "forked") echo 0 > events/kprobes/enable @@ -27,7 +27,7 @@ grep "testprobe_[usx]:.* arg1=.* arg2=.* arg3=.* arg4=.*" trace grep "testprobe_bf:.* arg1=.*" trace : "Test get string symbol argument" -echo "p:testprobe_str kernel_clone arg1=@linux_proc_banner:string" > kprobe_events +echo "p:testprobe_str $FUNCTION_FORK arg1=@linux_proc_banner:string" > kprobe_events echo 1 > events/kprobes/enable (echo "forked") echo 0 > events/kprobes/enable diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_type.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_type.tc index 91fcce1c241c..25b7708eb559 100644 --- a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_type.tc +++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_type.tc @@ -4,7 +4,7 @@ # requires: kprobe_events "x8/16/32/64":README gen_event() { # Bitsize - echo "p:testprobe kernel_clone \$stack0:s$1 \$stack0:u$1 \$stack0:x$1 \$stack0:b4@4/$1" + echo "p:testprobe $FUNCTION_FORK \$stack0:s$1 \$stack0:u$1 \$stack0:x$1 \$stack0:b4@4/$1" } check_types() { # s-type u-type x-type bf-type width diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc index 0d179094191f..5556292601a4 100644 --- a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc +++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc @@ -5,29 +5,29 @@ # prepare echo nop > current_tracer -echo kernel_clone > set_ftrace_filter -echo 'p:testprobe kernel_clone' > kprobe_events +echo $FUNCTION_FORK > set_ftrace_filter +echo "p:testprobe $FUNCTION_FORK" > kprobe_events # kprobe on / ftrace off echo 1 > events/kprobes/testprobe/enable echo > trace ( echo "forked") grep testprobe trace -! grep 'kernel_clone <-' trace +! grep "$FUNCTION_FORK <-" trace # kprobe on / ftrace on echo function > current_tracer echo > trace ( echo "forked") grep testprobe trace -grep 'kernel_clone <-' trace +grep "$FUNCTION_FORK <-" trace # kprobe off / ftrace on echo 0 > events/kprobes/testprobe/enable echo > trace ( echo "forked") ! grep testprobe trace -grep 'kernel_clone <-' trace +grep "$FUNCTION_FORK <-" trace # kprobe on / ftrace on echo 1 > events/kprobes/testprobe/enable @@ -35,11 +35,11 @@ echo function > current_tracer echo > trace ( echo "forked") grep testprobe trace -grep 'kernel_clone <-' trace +grep "$FUNCTION_FORK <-" trace # kprobe on / ftrace off echo nop > current_tracer echo > trace ( echo "forked") grep testprobe trace -! grep 'kernel_clone <-' trace +! grep "$FUNCTION_FORK <-" trace diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_multiprobe.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_multiprobe.tc index 45d90b6c763d..f0d5b7777ed7 100644 --- a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_multiprobe.tc +++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_multiprobe.tc @@ -4,7 +4,7 @@ # requires: kprobe_events "Create/append/":README # Choose 2 symbols for target -SYM1=kernel_clone +SYM1=$FUNCTION_FORK SYM2=do_exit EVENT_NAME=kprobes/testevent diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_syntax_errors.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_syntax_errors.tc index 1b5550ef8a9b..fa928b431555 100644 --- a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_syntax_errors.tc +++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_syntax_errors.tc @@ -86,15 +86,15 @@ esac # multiprobe errors if grep -q "Create/append/" README && grep -q "imm-value" README; then -echo 'p:kprobes/testevent kernel_clone' > kprobe_events +echo "p:kprobes/testevent $FUNCTION_FORK" > kprobe_events check_error '^r:kprobes/testevent do_exit' # DIFF_PROBE_TYPE # Explicitly use printf "%s" to not interpret \1 -printf "%s" 'p:kprobes/testevent kernel_clone abcd=\1' > kprobe_events -check_error 'p:kprobes/testevent kernel_clone ^bcd=\1' # DIFF_ARG_TYPE -check_error 'p:kprobes/testevent kernel_clone ^abcd=\1:u8' # DIFF_ARG_TYPE -check_error 'p:kprobes/testevent kernel_clone ^abcd=\"foo"' # DIFF_ARG_TYPE -check_error '^p:kprobes/testevent kernel_clone abcd=\1' # SAME_PROBE +printf "%s" "p:kprobes/testevent $FUNCTION_FORK abcd=\\1" > kprobe_events +check_error "p:kprobes/testevent $FUNCTION_FORK ^bcd=\\1" # DIFF_ARG_TYPE +check_error "p:kprobes/testevent $FUNCTION_FORK ^abcd=\\1:u8" # DIFF_ARG_TYPE +check_error "p:kprobes/testevent $FUNCTION_FORK ^abcd=\\\"foo\"" # DIFF_ARG_TYPE +check_error "^p:kprobes/testevent $FUNCTION_FORK abcd=\\1" # SAME_PROBE fi # %return suffix errors diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kretprobe_args.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kretprobe_args.tc index 7ae492c204a4..197cc2afd404 100644 --- a/tools/testing/selftests/ftrace/test.d/kprobe/kretprobe_args.tc +++ b/tools/testing/selftests/ftrace/test.d/kprobe/kretprobe_args.tc @@ -4,14 +4,14 @@ # requires: kprobe_events # Add new kretprobe event -echo 'r:testprobe2 kernel_clone $retval' > kprobe_events +echo "r:testprobe2 $FUNCTION_FORK \$retval" > kprobe_events grep testprobe2 kprobe_events | grep -q 'arg1=\$retval' test -d events/kprobes/testprobe2 echo 1 > events/kprobes/testprobe2/enable ( echo "forked") -cat trace | grep testprobe2 | grep -q '<- kernel_clone' +cat trace | grep testprobe2 | grep -q "<- $FUNCTION_FORK" echo 0 > events/kprobes/testprobe2/enable echo '-:testprobe2' >> kprobe_events diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/profile.tc b/tools/testing/selftests/ftrace/test.d/kprobe/profile.tc index c4093fc1a773..98166fa3eb91 100644 --- a/tools/testing/selftests/ftrace/test.d/kprobe/profile.tc +++ b/tools/testing/selftests/ftrace/test.d/kprobe/profile.tc @@ -4,7 +4,7 @@ # requires: kprobe_events ! grep -q 'myevent' kprobe_profile -echo p:myevent kernel_clone > kprobe_events +echo "p:myevent $FUNCTION_FORK" > kprobe_events grep -q 'myevent[[:space:]]*0[[:space:]]*0$' kprobe_profile echo 1 > events/kprobes/myevent/enable ( echo "forked" ) -- cgit v1.2.3-70-g09d2 From e3e40312567087fbe6880f316cb2b0e1f3d8a82c Mon Sep 17 00:00:00 2001 From: Colin Ian King Date: Fri, 2 Oct 2020 14:25:01 +0100 Subject: selftests/ftrace: check for do_sys_openat2 in user-memory test More recent libc implementations are now using openat/openat2 system calls so also add do_sys_openat2 to the tracing so that the test passes on these systems because do_sys_open may not be called. Thanks to Masami Hiramatsu for the help on getting this fix to work correctly. Signed-off-by: Colin Ian King Acked-by: Masami Hiramatsu Acked-by: Steven Rostedt (VMware) Signed-off-by: Shuah Khan --- tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_user.tc | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'tools') diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_user.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_user.tc index a30a9c07290d..d25d01a19778 100644 --- a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_user.tc +++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_user.tc @@ -9,12 +9,16 @@ grep -A10 "fetcharg:" README | grep -q '\[u\]' || exit_unsupported :;: "user-memory access syntax and ustring working on user memory";: echo 'p:myevent do_sys_open path=+0($arg2):ustring path2=+u0($arg2):string' \ > kprobe_events +echo 'p:myevent2 do_sys_openat2 path=+0($arg2):ustring path2=+u0($arg2):string' \ + >> kprobe_events grep myevent kprobe_events | \ grep -q 'path=+0($arg2):ustring path2=+u0($arg2):string' echo 1 > events/kprobes/myevent/enable +echo 1 > events/kprobes/myevent2/enable echo > /dev/null echo 0 > events/kprobes/myevent/enable +echo 0 > events/kprobes/myevent2/enable grep myevent trace | grep -q 'path="/dev/null" path2="/dev/null"' -- cgit v1.2.3-70-g09d2 From f825d3f7ed9305e7dd0a3e0a74673a4257d0cc53 Mon Sep 17 00:00:00 2001 From: Tommi Rantala Date: Thu, 8 Oct 2020 15:26:21 +0300 Subject: selftests: filter kselftest headers from command in lib.mk MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Commit 1056d3d2c97e ("selftests: enforce local header dependency in lib.mk") added header dependency to the rule, but as the rule uses $^, the headers are added to the compiler command line. This can cause unexpected precompiled header files being generated when compilation fails: $ echo { >> openat2_test.c $ make gcc -Wall -O2 -g -fsanitize=address -fsanitize=undefined openat2_test.c tools/testing/selftests/kselftest_harness.h tools/testing/selftests/kselftest.h helpers.c -o tools/testing/selftests/openat2/openat2_test openat2_test.c:313:1: error: expected identifier or ‘(’ before ‘{’ token 313 | { | ^ make: *** [../lib.mk:140: tools/testing/selftests/openat2/openat2_test] Error 1 $ file openat2_test* openat2_test: GCC precompiled header (version 014) for C openat2_test.c: C source, ASCII text Fix it by filtering out the headers, so that we'll only pass the actual *.c files in the compiler command line. Fixes: 1056d3d2c97e ("selftests: enforce local header dependency in lib.mk") Signed-off-by: Tommi Rantala Acked-by: Kees Cook Reviewed-by: Christian Brauner Signed-off-by: Shuah Khan --- tools/testing/selftests/lib.mk | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'tools') diff --git a/tools/testing/selftests/lib.mk b/tools/testing/selftests/lib.mk index 30848ca36555..a5ce26d548e4 100644 --- a/tools/testing/selftests/lib.mk +++ b/tools/testing/selftests/lib.mk @@ -136,7 +136,7 @@ endif ifeq ($(OVERRIDE_TARGETS),) LOCAL_HDRS := $(selfdir)/kselftest_harness.h $(selfdir)/kselftest.h $(OUTPUT)/%:%.c $(LOCAL_HDRS) - $(LINK.c) $^ $(LDLIBS) -o $@ + $(LINK.c) $(filter-out $(LOCAL_HDRS),$^) $(LDLIBS) -o $@ $(OUTPUT)/%.o:%.S $(COMPILE.S) $^ -o $@ -- cgit v1.2.3-70-g09d2 From 1948172fdba5ad643529ddcd00a601c0caa913ed Mon Sep 17 00:00:00 2001 From: Tommi Rantala Date: Thu, 8 Oct 2020 15:26:22 +0300 Subject: selftests: pidfd: fix compilation errors due to wait.h Drop unneeded header inclusion to fix pidfd compilation errors seen in Fedora 32: In file included from pidfd_open_test.c:9: ../../../../usr/include/linux/wait.h:17:16: error: expected identifier before numeric constant 17 | #define P_ALL 0 | ^ Signed-off-by: Tommi Rantala Reviewed-by: Kees Cook Acked-by: Christian Brauner Signed-off-by: Shuah Khan --- tools/testing/selftests/pidfd/pidfd_open_test.c | 1 - tools/testing/selftests/pidfd/pidfd_poll_test.c | 1 - 2 files changed, 2 deletions(-) (limited to 'tools') diff --git a/tools/testing/selftests/pidfd/pidfd_open_test.c b/tools/testing/selftests/pidfd/pidfd_open_test.c index b9fe75fc3e51..8a59438ccc78 100644 --- a/tools/testing/selftests/pidfd/pidfd_open_test.c +++ b/tools/testing/selftests/pidfd/pidfd_open_test.c @@ -6,7 +6,6 @@ #include #include #include -#include #include #include #include diff --git a/tools/testing/selftests/pidfd/pidfd_poll_test.c b/tools/testing/selftests/pidfd/pidfd_poll_test.c index 4b115444dfe9..610811275357 100644 --- a/tools/testing/selftests/pidfd/pidfd_poll_test.c +++ b/tools/testing/selftests/pidfd/pidfd_poll_test.c @@ -3,7 +3,6 @@ #define _GNU_SOURCE #include #include -#include #include #include #include -- cgit v1.2.3-70-g09d2 From ef7086347c82c53a6c5238bd2cf31379f6acadde Mon Sep 17 00:00:00 2001 From: Tommi Rantala Date: Thu, 8 Oct 2020 15:26:24 +0300 Subject: selftests/harness: prettify SKIP message whitespace again Commit 9847d24af95c ("selftests/harness: Refactor XFAIL into SKIP") replaced XFAIL with SKIP in the output. Add one more space to make the output aligned and pretty again. Fixes: 9847d24af95c ("selftests/harness: Refactor XFAIL into SKIP") Signed-off-by: Tommi Rantala Acked-by: Kees Cook Reviewed-by: Christian Brauner Signed-off-by: Shuah Khan --- tools/testing/selftests/kselftest_harness.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'tools') diff --git a/tools/testing/selftests/kselftest_harness.h b/tools/testing/selftests/kselftest_harness.h index f19804df244c..d2cba10acc6d 100644 --- a/tools/testing/selftests/kselftest_harness.h +++ b/tools/testing/selftests/kselftest_harness.h @@ -126,7 +126,7 @@ snprintf(_metadata->results->reason, \ sizeof(_metadata->results->reason), fmt, ##__VA_ARGS__); \ if (TH_LOG_ENABLED) { \ - fprintf(TH_LOG_STREAM, "# SKIP %s\n", \ + fprintf(TH_LOG_STREAM, "# SKIP %s\n", \ _metadata->results->reason); \ } \ _metadata->passed = 1; \ -- cgit v1.2.3-70-g09d2 From 0b18fed98bf96ba5ac14ab7c43c8a3364cb0daf8 Mon Sep 17 00:00:00 2001 From: Tommi Rantala Date: Thu, 8 Oct 2020 15:26:25 +0300 Subject: selftests: pidfd: use ksft_test_result_skip() when skipping test There's planned tests != run tests in pidfd_test when some test is skipped: $ ./pidfd_test TAP version 13 1..8 [...] # pidfd_send_signal signal recycled pid test: Skipping test # Planned tests != run tests (8 != 7) # Totals: pass:7 fail:0 xfail:0 xpass:0 skip:0 error:0 Fix by using ksft_test_result_skip(): $ ./pidfd_test TAP version 13 1..8 [...] ok 8 # SKIP pidfd_send_signal signal recycled pid test: Unsharing pid namespace not permitted # Totals: pass:7 fail:0 xfail:0 xpass:0 skip:1 error:0 Signed-off-by: Tommi Rantala Acked-by: Christian Brauner Signed-off-by: Shuah Khan --- tools/testing/selftests/pidfd/pidfd_test.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'tools') diff --git a/tools/testing/selftests/pidfd/pidfd_test.c b/tools/testing/selftests/pidfd/pidfd_test.c index c585aaa2acd8..529eb700ac26 100644 --- a/tools/testing/selftests/pidfd/pidfd_test.c +++ b/tools/testing/selftests/pidfd/pidfd_test.c @@ -330,7 +330,7 @@ static int test_pidfd_send_signal_recycled_pid_fail(void) ksft_exit_fail_msg("%s test: Failed to recycle pid %d\n", test_name, PID_RECYCLE); case PIDFD_SKIP: - ksft_print_msg("%s test: Skipping test\n", test_name); + ksft_test_result_skip("%s test: Skipping test\n", test_name); ret = 0; break; case PIDFD_XFAIL: -- cgit v1.2.3-70-g09d2 From b5ec9fe5be5e02e7db9e79aaa9a1ea7a3419d0b5 Mon Sep 17 00:00:00 2001 From: Tommi Rantala Date: Thu, 8 Oct 2020 15:26:26 +0300 Subject: selftests: pidfd: skip test on kcmp() ENOSYS Skip test if kcmp() is not available, for example if kernel is compiled without CONFIG_CHECKPOINT_RESTORE=y. Signed-off-by: Tommi Rantala Acked-by: Christian Brauner Signed-off-by: Shuah Khan --- tools/testing/selftests/pidfd/pidfd_getfd_test.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'tools') diff --git a/tools/testing/selftests/pidfd/pidfd_getfd_test.c b/tools/testing/selftests/pidfd/pidfd_getfd_test.c index 7758c98be015..0930e2411dfb 100644 --- a/tools/testing/selftests/pidfd/pidfd_getfd_test.c +++ b/tools/testing/selftests/pidfd/pidfd_getfd_test.c @@ -204,7 +204,10 @@ TEST_F(child, fetch_fd) fd = sys_pidfd_getfd(self->pidfd, self->remote_fd, 0); ASSERT_GE(fd, 0); - EXPECT_EQ(0, sys_kcmp(getpid(), self->pid, KCMP_FILE, fd, self->remote_fd)); + ret = sys_kcmp(getpid(), self->pid, KCMP_FILE, fd, self->remote_fd); + if (ret < 0 && errno == ENOSYS) + SKIP(return, "kcmp() syscall not supported"); + EXPECT_EQ(ret, 0); ret = fcntl(fd, F_GETFD); ASSERT_GE(ret, 0); -- cgit v1.2.3-70-g09d2 From 90da74af349e8a476e1d357da735b8f35b56d4e6 Mon Sep 17 00:00:00 2001 From: Tommi Rantala Date: Thu, 8 Oct 2020 15:26:27 +0300 Subject: selftests: pidfd: add CONFIG_CHECKPOINT_RESTORE=y to config kcmp syscall is used in pidfd_getfd_test.c, so add CONFIG_CHECKPOINT_RESTORE=y to config to ensure kcmp is available. Signed-off-by: Tommi Rantala Acked-by: Christian Brauner Signed-off-by: Shuah Khan --- tools/testing/selftests/pidfd/config | 1 + 1 file changed, 1 insertion(+) (limited to 'tools') diff --git a/tools/testing/selftests/pidfd/config b/tools/testing/selftests/pidfd/config index bb11de90c0c9..f6f2965e17af 100644 --- a/tools/testing/selftests/pidfd/config +++ b/tools/testing/selftests/pidfd/config @@ -4,3 +4,4 @@ CONFIG_USER_NS=y CONFIG_PID_NS=y CONFIG_NET_NS=y CONFIG_CGROUPS=y +CONFIG_CHECKPOINT_RESTORE=y -- cgit v1.2.3-70-g09d2 From 7b9621d4593199aa0268e56081fe730b71c053e6 Mon Sep 17 00:00:00 2001 From: Tommi Rantala Date: Thu, 8 Oct 2020 15:26:28 +0300 Subject: selftests: pidfd: drop needless linux/kcmp.h inclusion in pidfd_setns_test.c kcmp is not used in pidfd_setns_test.c, so do not include Signed-off-by: Tommi Rantala Acked-by: Christian Brauner Signed-off-by: Shuah Khan --- tools/testing/selftests/pidfd/pidfd_setns_test.c | 1 - 1 file changed, 1 deletion(-) (limited to 'tools') diff --git a/tools/testing/selftests/pidfd/pidfd_setns_test.c b/tools/testing/selftests/pidfd/pidfd_setns_test.c index 1f085b922c6e..6e2f2cd400ca 100644 --- a/tools/testing/selftests/pidfd/pidfd_setns_test.c +++ b/tools/testing/selftests/pidfd/pidfd_setns_test.c @@ -16,7 +16,6 @@ #include #include #include -#include #include "pidfd.h" #include "../clone3/clone3_selftests.h" -- cgit v1.2.3-70-g09d2 From f3ae6c6e8a3ea49076d826c64e63ea78fbf9db43 Mon Sep 17 00:00:00 2001 From: Tommi Rantala Date: Thu, 8 Oct 2020 15:26:30 +0300 Subject: selftests: proc: fix warning: _GNU_SOURCE redefined Makefile already contains -D_GNU_SOURCE, so we can remove it from the *.c files. Signed-off-by: Tommi Rantala Signed-off-by: Shuah Khan --- tools/testing/selftests/proc/proc-loadavg-001.c | 1 - tools/testing/selftests/proc/proc-self-syscall.c | 1 - tools/testing/selftests/proc/proc-uptime-002.c | 1 - 3 files changed, 3 deletions(-) (limited to 'tools') diff --git a/tools/testing/selftests/proc/proc-loadavg-001.c b/tools/testing/selftests/proc/proc-loadavg-001.c index 471e2aa28077..fb4fe9188806 100644 --- a/tools/testing/selftests/proc/proc-loadavg-001.c +++ b/tools/testing/selftests/proc/proc-loadavg-001.c @@ -14,7 +14,6 @@ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ /* Test that /proc/loadavg correctly reports last pid in pid namespace. */ -#define _GNU_SOURCE #include #include #include diff --git a/tools/testing/selftests/proc/proc-self-syscall.c b/tools/testing/selftests/proc/proc-self-syscall.c index 9f6d000c0245..8511dcfe67c7 100644 --- a/tools/testing/selftests/proc/proc-self-syscall.c +++ b/tools/testing/selftests/proc/proc-self-syscall.c @@ -13,7 +13,6 @@ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ -#define _GNU_SOURCE #include #include #include diff --git a/tools/testing/selftests/proc/proc-uptime-002.c b/tools/testing/selftests/proc/proc-uptime-002.c index 30e2b7849089..e7ceabed7f51 100644 --- a/tools/testing/selftests/proc/proc-uptime-002.c +++ b/tools/testing/selftests/proc/proc-uptime-002.c @@ -15,7 +15,6 @@ */ // Test that values in /proc/uptime increment monotonically // while shifting across CPUs. -#define _GNU_SOURCE #undef NDEBUG #include #include -- cgit v1.2.3-70-g09d2 From 1d44d0dd61b6121b49f25b731f2f7f605cb3c896 Mon Sep 17 00:00:00 2001 From: Tommi Rantala Date: Thu, 8 Oct 2020 15:26:31 +0300 Subject: selftests: core: use SKIP instead of XFAIL in close_range_test.c XFAIL is gone since commit 9847d24af95c ("selftests/harness: Refactor XFAIL into SKIP"), use SKIP instead. Fixes: 9847d24af95c ("selftests/harness: Refactor XFAIL into SKIP") Signed-off-by: Tommi Rantala Reviewed-by: Kees Cook Acked-by: Christian Brauner Signed-off-by: Shuah Khan --- tools/testing/selftests/core/close_range_test.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'tools') diff --git a/tools/testing/selftests/core/close_range_test.c b/tools/testing/selftests/core/close_range_test.c index c99b98b0d461..575b391ddc78 100644 --- a/tools/testing/selftests/core/close_range_test.c +++ b/tools/testing/selftests/core/close_range_test.c @@ -44,7 +44,7 @@ TEST(close_range) fd = open("/dev/null", O_RDONLY | O_CLOEXEC); ASSERT_GE(fd, 0) { if (errno == ENOENT) - XFAIL(return, "Skipping test since /dev/null does not exist"); + SKIP(return, "Skipping test since /dev/null does not exist"); } open_fds[i] = fd; @@ -52,7 +52,7 @@ TEST(close_range) EXPECT_EQ(-1, sys_close_range(open_fds[0], open_fds[100], -1)) { if (errno == ENOSYS) - XFAIL(return, "close_range() syscall not supported"); + SKIP(return, "close_range() syscall not supported"); } EXPECT_EQ(0, sys_close_range(open_fds[0], open_fds[50], 0)); @@ -108,7 +108,7 @@ TEST(close_range_unshare) fd = open("/dev/null", O_RDONLY | O_CLOEXEC); ASSERT_GE(fd, 0) { if (errno == ENOENT) - XFAIL(return, "Skipping test since /dev/null does not exist"); + SKIP(return, "Skipping test since /dev/null does not exist"); } open_fds[i] = fd; @@ -197,7 +197,7 @@ TEST(close_range_unshare_capped) fd = open("/dev/null", O_RDONLY | O_CLOEXEC); ASSERT_GE(fd, 0) { if (errno == ENOENT) - XFAIL(return, "Skipping test since /dev/null does not exist"); + SKIP(return, "Skipping test since /dev/null does not exist"); } open_fds[i] = fd; -- cgit v1.2.3-70-g09d2 From afba8b0a2cc532b54eaf4254092f57bba5d7eb65 Mon Sep 17 00:00:00 2001 From: Tommi Rantala Date: Thu, 8 Oct 2020 15:26:32 +0300 Subject: selftests: clone3: use SKIP instead of XFAIL XFAIL is gone since commit 9847d24af95c ("selftests/harness: Refactor XFAIL into SKIP"), use SKIP instead. Fixes: 9847d24af95c ("selftests/harness: Refactor XFAIL into SKIP") Signed-off-by: Tommi Rantala Reviewed-by: Kees Cook Acked-by: Christian Brauner Signed-off-by: Shuah Khan --- tools/testing/selftests/clone3/clone3_cap_checkpoint_restore.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'tools') diff --git a/tools/testing/selftests/clone3/clone3_cap_checkpoint_restore.c b/tools/testing/selftests/clone3/clone3_cap_checkpoint_restore.c index 55bd387ce7ec..52d3f0364bda 100644 --- a/tools/testing/selftests/clone3/clone3_cap_checkpoint_restore.c +++ b/tools/testing/selftests/clone3/clone3_cap_checkpoint_restore.c @@ -145,7 +145,7 @@ TEST(clone3_cap_checkpoint_restore) test_clone3_supported(); EXPECT_EQ(getuid(), 0) - XFAIL(return, "Skipping all tests as non-root\n"); + SKIP(return, "Skipping all tests as non-root"); memset(&set_tid, 0, sizeof(set_tid)); -- cgit v1.2.3-70-g09d2 From 7d764b685ee1bc73a9fa2b6cb4d42fa72b943145 Mon Sep 17 00:00:00 2001 From: Tommi Rantala Date: Thu, 8 Oct 2020 15:26:33 +0300 Subject: selftests: binderfs: use SKIP instead of XFAIL XFAIL is gone since commit 9847d24af95c ("selftests/harness: Refactor XFAIL into SKIP"), use SKIP instead. Fixes: 9847d24af95c ("selftests/harness: Refactor XFAIL into SKIP") Signed-off-by: Tommi Rantala Reviewed-by: Kees Cook Acked-by: Christian Brauner Signed-off-by: Shuah Khan --- tools/testing/selftests/filesystems/binderfs/binderfs_test.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'tools') diff --git a/tools/testing/selftests/filesystems/binderfs/binderfs_test.c b/tools/testing/selftests/filesystems/binderfs/binderfs_test.c index 1d27f52c61e6..477cbb042f5b 100644 --- a/tools/testing/selftests/filesystems/binderfs/binderfs_test.c +++ b/tools/testing/selftests/filesystems/binderfs/binderfs_test.c @@ -74,7 +74,7 @@ static int __do_binderfs_test(struct __test_metadata *_metadata) ret = mount(NULL, binderfs_mntpt, "binder", 0, 0); EXPECT_EQ(ret, 0) { if (errno == ENODEV) - XFAIL(goto out, "binderfs missing"); + SKIP(goto out, "binderfs missing"); TH_LOG("%s - Failed to mount binderfs", strerror(errno)); goto rmdir; } @@ -475,10 +475,10 @@ TEST(binderfs_stress) TEST(binderfs_test_privileged) { if (geteuid() != 0) - XFAIL(return, "Tests are not run as root. Skipping privileged tests"); + SKIP(return, "Tests are not run as root. Skipping privileged tests"); if (__do_binderfs_test(_metadata)) - XFAIL(return, "The Android binderfs filesystem is not available"); + SKIP(return, "The Android binderfs filesystem is not available"); } TEST(binderfs_test_unprivileged) @@ -511,7 +511,7 @@ TEST(binderfs_test_unprivileged) ret = wait_for_pid(pid); if (ret) { if (ret == 2) - XFAIL(return, "The Android binderfs filesystem is not available"); + SKIP(return, "The Android binderfs filesystem is not available"); ASSERT_EQ(ret, 0) { TH_LOG("wait_for_pid() failed"); } -- cgit v1.2.3-70-g09d2