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Fix: Memory allocated by xmlNodeGetContent() must be freed by xmlFree()
[lttng-tools.git] / tests / regression / kernel / test_syscall
diff --git a/tests/regression/kernel/test_syscall b/tests/regression/kernel/test_syscall
index e3b29e8197b59a248384b420997470aae2279d0b..a7800d2a1fede246cadeaaba7e70f423cd15392c 100755 (executable)
--- a/tests/regression/kernel/test_syscall
+++ b/tests/regression/kernel/test_syscall
@@ -20,13 +20,104 @@ TEST_DESC="Kernel tracer - System calls"
 
 CURDIR=$(dirname $0)/
 TESTDIR=$CURDIR/../..
-NUM_TESTS=132
+NUM_TESTS=157
 
 # test command issues at least open and close system calls
 TESTCMD="cat /proc/cpuinfo > /dev/null"
 
 source $TESTDIR/utils/utils.sh
 
+function validate_list()
+{
+       local session_name=$1
+       local event_name=$2
+       local opt=$3
+
+       out=$($TESTDIR/../src/bin/lttng/$LTTNG_BIN list $session_name $opt | grep $event_name)
+       if [ -z "$out" ]; then
+               fail "Validate syscall listing"
+               diag "$event_name not found when listing $session_name (opt $opt)"
+       else
+               pass "Validate syscall listing. Found $event_name."
+       fi
+}
+
+function test_syscall_event_list()
+{
+       local EVENT_NAME="getpid"
+
+       diag "Syscall event listing"
+
+       validate_list "" $EVENT_NAME "-k --syscall"
+}
+
+function test_syscall_simple_list()
+{
+       TRACE_PATH=$(mktemp -d)
+       SESSION_NAME="kernel_syscall_simple_list"
+       local EVENT_NAME="close"
+
+       diag "Syscall simple listing"
+
+       create_lttng_session $SESSION_NAME $TRACE_PATH
+
+       lttng_enable_kernel_syscall_ok $SESSION_NAME $EVENT_NAME
+
+       validate_list $SESSION_NAME $EVENT_NAME
+
+       start_lttng_tracing
+       eval ${TESTCMD}
+       stop_lttng_tracing
+
+       # ensure each is there.
+       validate_trace_exp "-e syscall_entry_$EVENT_NAME: -e compat_syscall_entry_$EVENT_NAME:" $TRACE_PATH
+       validate_trace_exp "-e syscall_exit_$EVENT_NAME: -e compat_syscall_exit_$EVENT_NAME:" $TRACE_PATH
+
+       # ensure trace only contains those.
+       validate_trace_only_exp "-e syscall_entry_$EVENT_NAME: -e compat_syscall_entry_$EVENT_NAME: -e syscall_exit_$EVENT_NAME: -e compat_syscall_exit_$EVENT_NAME:" $TRACE_PATH
+
+       destroy_lttng_session $SESSION_NAME
+
+       rm -rf $TRACE_PATH
+}
+
+function test_syscall_simple_list_two()
+{
+       TRACE_PATH=$(mktemp -d)
+       SESSION_NAME="kernel_syscall_simple_list_two"
+       local EVENT_NAME="close"
+       local EVENT_NAME2="read"
+
+       diag "Syscall simple listing"
+
+       create_lttng_session $SESSION_NAME $TRACE_PATH
+
+       lttng_enable_kernel_syscall_ok $SESSION_NAME $EVENT_NAME
+       lttng_enable_kernel_syscall_ok $SESSION_NAME $EVENT_NAME2
+
+       validate_list $SESSION_NAME $EVENT_NAME
+       validate_list $SESSION_NAME $EVENT_NAME2
+
+       start_lttng_tracing
+       eval ${TESTCMD}
+       stop_lttng_tracing
+
+       # ensure each is there.
+       validate_trace_exp "-e syscall_entry_$EVENT_NAME: -e compat_syscall_entry_$EVENT_NAME:" $TRACE_PATH
+       validate_trace_exp "-e syscall_exit_$EVENT_NAME: -e compat_syscall_exit_$EVENT_NAME:" $TRACE_PATH
+
+       # ensure each is there.
+       validate_trace_exp "-e syscall_entry_$EVENT_NAME2: -e compat_syscall_entry_$EVENT_NAME2:" $TRACE_PATH
+       validate_trace_exp "-e syscall_exit_$EVENT_NAME2: -e compat_syscall_exit_$EVENT_NAME2:" $TRACE_PATH
+
+       # ensure trace only contains those.
+       validate_trace_only_exp "-e syscall_entry_$EVENT_NAME: -e compat_syscall_entry_$EVENT_NAME: -e syscall_exit_$EVENT_NAME: -e compat_syscall_exit_$EVENT_NAME: -e syscall_entry_$EVENT_NAME2: -e compat_syscall_entry_$EVENT_NAME2: -e syscall_exit_$EVENT_NAME2: -e compat_syscall_exit_$EVENT_NAME2:" $TRACE_PATH
+
+       destroy_lttng_session $SESSION_NAME
+
+       rm -rf $TRACE_PATH
+}
+
 function test_syscall_single()
 {
        TRACE_PATH=$(mktemp -d)
@@ -123,15 +214,16 @@ function test_syscall_all_disable_one()
 
        # enable all syscalls
        lttng_enable_kernel_syscall_ok $SESSION_NAME
-       # disable open system call
-       lttng_disable_kernel_syscall_ok $SESSION_NAME "open"
+       # try to disable open system call: fails because enabler semantic of
+       # "all syscalls" is not "the open" system call.
+       lttng_disable_kernel_syscall_fail $SESSION_NAME "open"
 
        start_lttng_tracing
        eval ${TESTCMD}
        stop_lttng_tracing
 
-       # ensure "open" syscall is not there.
-       validate_trace_only_exp "-v -e syscall_entry_open: -e compat_syscall_entry_open: -e syscall_exit_open: -e compat_syscall_exit_open:" $TRACE_PATH
+       # ensure "open" syscall is there.
+       validate_trace_exp "-e syscall_entry_open: -e compat_syscall_entry_open: -e syscall_exit_open: -e compat_syscall_exit_open:" $TRACE_PATH
 
        # ensure "close" syscall is there.
        validate_trace_exp "-e syscall_entry_close: -e compat_syscall_entry_close:" $TRACE_PATH
@@ -153,17 +245,22 @@ function test_syscall_all_disable_two()
 
        # enable all syscalls
        lttng_enable_kernel_syscall_ok $SESSION_NAME
-       # disable open system call
-       lttng_disable_kernel_syscall_ok $SESSION_NAME "open"
-       lttng_disable_kernel_syscall_ok $SESSION_NAME "close"
+       # try to disable open and close system calls: fails because enabler
+       # semantic of "all syscalls" is not "the open" system call.
+       lttng_disable_kernel_syscall_fail $SESSION_NAME "open"
+       lttng_disable_kernel_syscall_fail $SESSION_NAME "close"
 
        start_lttng_tracing
        # generates open, close, execve (at least)
        eval ${TESTCMD}
        stop_lttng_tracing
 
-       # ensure "open" and "close" syscalls are not there.
-       validate_trace_only_exp "-v -e syscall_entry_open: -e compat_syscall_entry_open: -e syscall_exit_open: -e compat_syscall_exit_open: -e syscall_entry_close: -e compat_syscall_entry_close: -e syscall_exit_close: -e compat_syscall_exit_close:" $TRACE_PATH
+       # ensure "open" syscall is there.
+       validate_trace_exp "-e syscall_entry_open: -e compat_syscall_entry_open: -e syscall_exit_open: -e compat_syscall_exit_open:" $TRACE_PATH
+
+       # ensure "close" syscall is there.
+       validate_trace_exp "-e syscall_entry_close: -e compat_syscall_entry_close:" $TRACE_PATH
+       validate_trace_exp "-e syscall_exit_close: -e compat_syscall_exit_close:" $TRACE_PATH
 
        # ensure "execve" syscall is there.
        validate_trace_exp "-e syscall_entry_execve: -e compat_syscall_entry_execve:" $TRACE_PATH
@@ -365,8 +462,8 @@ function test_syscall_disable_twice()
        lttng_enable_kernel_syscall_ok $SESSION_NAME "open"
        # First disable will succeed
        lttng_disable_kernel_syscall_ok $SESSION_NAME "open"
-       # Second disable will fail
-       lttng_disable_kernel_syscall_fail $SESSION_NAME "open"
+       # Second disable succeeds too, due to enabler semantic.
+       lttng_disable_kernel_syscall_ok $SESSION_NAME "open"
 
        destroy_lttng_session $SESSION_NAME
 
@@ -385,8 +482,8 @@ function test_syscall_disable_all_twice()
        lttng_enable_kernel_syscall_ok $SESSION_NAME
        # First disable will succeed
        lttng_disable_kernel_syscall_ok $SESSION_NAME
-       # Second disable will fail
-       lttng_disable_kernel_syscall_fail $SESSION_NAME
+       # Second disable succeeds too, due to enabler semantic.
+       lttng_disable_kernel_syscall_ok $SESSION_NAME
 
        destroy_lttng_session $SESSION_NAME
 
@@ -403,7 +500,9 @@ function test_syscall_enable_unknown()
 
        create_lttng_session $SESSION_NAME $TRACE_PATH
 
-       lttng_enable_kernel_syscall_fail $SESSION_NAME "thissyscallcannotexist"
+       # Enabling a syscall that does not exist succeeds, due to enabler
+       # semantic.
+       lttng_enable_kernel_syscall_ok $SESSION_NAME "thissyscallcannotexist"
 
        destroy_lttng_session $SESSION_NAME
 
@@ -420,8 +519,8 @@ function test_syscall_enable_all_enable_one()
        create_lttng_session $SESSION_NAME $TRACE_PATH
 
        lttng_enable_kernel_syscall_ok $SESSION_NAME
-       # Enabling an event already enabled fails.
-       lttng_enable_kernel_syscall_fail $SESSION_NAME "open"
+       # Enabling an event already enabled succeeds, due to enabler semantic.
+       lttng_enable_kernel_syscall_ok $SESSION_NAME "open"
 
        destroy_lttng_session $SESSION_NAME
 
@@ -458,7 +557,9 @@ function test_syscall_enable_channel_disable_all()
        create_lttng_session $SESSION_NAME $TRACE_PATH
 
        lttng_enable_kernel_channel_ok $SESSION_NAME $CHANNEL_NAME
-       lttng_disable_kernel_syscall_fail $SESSION_NAME "-a" $CHANNEL_NAME
+       # sessiond semantic for "disable all" is to try to match all enalers
+       # it knowns about. Disable all succeeds if it finds no match.
+       lttng_disable_kernel_syscall_ok $SESSION_NAME "-a" $CHANNEL_NAME
 
        destroy_lttng_session $SESSION_NAME
 
@@ -498,6 +599,9 @@ skip $isroot "Root access is needed. Skipping all tests." $NUM_TESTS ||
 {
        start_lttng_sessiond
 
+       test_syscall_event_list
+       test_syscall_simple_list
+       test_syscall_simple_list_two
        test_syscall_single
        test_syscall_two
        test_syscall_all
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