1#!/bin/sh 2# SPDX-License-Identifier: GPL-2.0 3# description: Tracepoint probe event parser error log check 4# requires: dynamic_events "t[:[<group>/][<event>]] <tracepoint> [<args>]":README 5 6check_error() { # command-with-error-pos-by-^ 7 ftrace_errlog_check 'trace_fprobe' "$1" 'dynamic_events' 8} 9 10check_error 't^100 kfree' # BAD_MAXACT_TYPE 11 12check_error 't ^non_exist_tracepoint' # NO_TRACEPOINT 13check_error 't:^/bar kfree' # NO_GROUP_NAME 14check_error 't:^12345678901234567890123456789012345678901234567890123456789012345/bar kfree' # GROUP_TOO_LONG 15 16check_error 't:^foo.1/bar kfree' # BAD_GROUP_NAME 17check_error 't:^ kfree' # NO_EVENT_NAME 18check_error 't:foo/^12345678901234567890123456789012345678901234567890123456789012345 kfree' # EVENT_TOO_LONG 19check_error 't:foo/^bar.1 kfree' # BAD_EVENT_NAME 20 21check_error 't kfree ^$retval' # RETVAL_ON_PROBE 22check_error 't kfree ^$stack10000' # BAD_STACK_NUM 23 24check_error 't kfree ^$arg10000' # BAD_ARG_NUM 25 26check_error 't kfree ^$none_var' # BAD_VAR 27check_error 't kfree ^%rax' # BAD_VAR 28 29check_error 't kfree ^@12345678abcde' # BAD_MEM_ADDR 30check_error 't kfree ^@+10' # FILE_ON_KPROBE 31 32grep -q "imm-value" README && \ 33check_error 't kfree arg1=\^x' # BAD_IMM 34grep -q "imm-string" README && \ 35check_error 't kfree arg1=\"abcd^' # IMMSTR_NO_CLOSE 36 37check_error 't kfree ^+0@0)' # DEREF_NEED_BRACE 38check_error 't kfree ^+0ab1(@0)' # BAD_DEREF_OFFS 39check_error 't kfree +0(+0(@0^)' # DEREF_OPEN_BRACE 40 41if grep -A1 "fetcharg:" README | grep -q '\$comm' ; then 42check_error 't kfree +0(^$comm)' # COMM_CANT_DEREF 43fi 44 45check_error 't kfree ^&1' # BAD_FETCH_ARG 46 47 48# We've introduced this limitation with array support 49if grep -q ' <type>\\\[<array-size>\\\]' README; then 50check_error 't kfree +0(^+0(+0(+0(+0(+0(+0(+0(+0(+0(+0(+0(+0(+0(@0))))))))))))))' # TOO_MANY_OPS? 51check_error 't kfree +0(@11):u8[10^' # ARRAY_NO_CLOSE 52check_error 't kfree +0(@11):u8[10]^a' # BAD_ARRAY_SUFFIX 53check_error 't kfree +0(@11):u8[^10a]' # BAD_ARRAY_NUM 54check_error 't kfree +0(@11):u8[^256]' # ARRAY_TOO_BIG 55fi 56 57check_error 't kfree @11:^unknown_type' # BAD_TYPE 58check_error 't kfree $stack0:^string' # BAD_STRING 59check_error 't kfree @11:^b10@a/16' # BAD_BITFIELD 60 61check_error 't kfree ^arg123456789012345678901234567890=@11' # ARG_NAME_TOO_LOG 62check_error 't kfree ^=@11' # NO_ARG_NAME 63check_error 't kfree ^var.1=@11' # BAD_ARG_NAME 64check_error 't kfree var1=@11 ^var1=@12' # USED_ARG_NAME 65check_error 't kfree ^+1234567(+1234567(+1234567(+1234567(+1234567(+1234567(@1234))))))' # ARG_TOO_LONG 66check_error 't kfree arg1=^' # NO_ARG_BODY 67 68 69# multiprobe errors 70if grep -q "Create/append/" README && grep -q "imm-value" README; then 71echo "t:tracepoint/testevent kfree" > dynamic_events 72check_error '^f:tracepoint/testevent kfree' # DIFF_PROBE_TYPE 73 74# Explicitly use printf "%s" to not interpret \1 75printf "%s" "t:tracepoints/testevent kfree abcd=\\1" > dynamic_events 76check_error "t:tracepoints/testevent kfree ^bcd=\\1" # DIFF_ARG_TYPE 77check_error "t:tracepoints/testevent kfree ^abcd=\\1:u8" # DIFF_ARG_TYPE 78check_error "t:tracepoints/testevent kfree ^abcd=\\\"foo\"" # DIFF_ARG_TYPE 79check_error "^t:tracepoints/testevent kfree abcd=\\1" # SAME_PROBE 80fi 81 82exit 0 83