Fix: test: missing test plan for non-x86/arm platforms (i.e powerpc)
[lttng-tools.git] / tests / regression / kernel / test_select_poll_epoll
CommitLineData
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1#!/bin/bash
2#
9d16b343 3# Copyright (C) 2016 Julien Desfossez <jdesfossez@efficios.com>
a0b1f42c 4#
9d16b343 5# SPDX-License-Identifier: GPL-2.0-only
a0b1f42c 6#
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7
8TEST_DESC="Kernel tracer - select, poll and epoll payload extraction"
9
d40c2620 10CURDIR=$(dirname "$0")/
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11TESTDIR=$CURDIR/../..
12VALIDATE_SCRIPT="$CURDIR/validate_select_poll_epoll.py"
13NUM_TESTS=102
14
15# Only run this test on x86 and arm
16uname -m | grep -E "x86|i686|arm|aarch64" >/dev/null 2>&1
17if test $? != 0; then
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18 plan_tests $NUM_TESTS
19 skip 0 "Run only on x86 and arm. Skipping all tests." $NUM_TESTS
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20 exit 0
21fi
22
23DISABLE_VALIDATE=0
24# Babeltrace python bindings are required for the validation, but
25# it is not a mandatory dependancy of the project, so fail run the
26# without the content validation, at least we test that we are not
27# crashing the kernel.
28$VALIDATE_SCRIPT --help >/dev/null 2>&1
29if test $? != 0; then
30 echo "# Failed to run the validation script, Babeltrace Python bindings might be missing"
31 DISABLE_VALIDATE=1
32fi
33
34LAST_WARNING=$(dmesg | grep " WARNING:" | cut -d' ' -f1 | tail -1)
35LAST_OOPS=$(dmesg | grep " OOPS:" | cut -d' ' -f1 | tail -1)
36LAST_BUG=$(dmesg | grep " BUG:" | cut -d' ' -f1 | tail -1)
37
d40c2620 38# shellcheck source=../../utils/utils.sh
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39source $TESTDIR/utils/utils.sh
40
41function check_trace_content()
42{
43 if test $DISABLE_VALIDATE == 1; then
44 ok 0 "Validation skipped"
45 return
46 fi
47
48 $VALIDATE_SCRIPT $@
49 if test $? = 0; then
50 ok 0 "Validation success"
51 else
52 fail "Validation"
53 fi
54}
55
56function test_working_cases()
57{
a0b1f42c 58 SESSION_NAME="syscall_payload"
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59 TRACE_PATH=$(mktemp --tmpdir -d "tmp.test_kernel_select_poll_epoll_${FUNCNAME[0]}_trace_path.XXXXXX")
60 TEST_VALIDATION_OUTPUT_PATH=$(mktemp --tmpdir -u "tmp.test_kernel_select_poll_epoll_${FUNCNAME[0]}_validation.XXXXXX")
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61
62 # arm64 does not have epoll_wait
63 uname -m | grep -E "aarch64" >/dev/null 2>&1
64 if test $? = 0; then
65 SYSCALL_LIST="select,pselect6,poll,ppoll,epoll_ctl,epoll_pwait"
66 else
67 SYSCALL_LIST="select,pselect6,poll,ppoll,epoll_ctl,epoll_wait,epoll_pwait"
68 fi
69
70 diag "Working cases for select, pselect6, poll, ppoll and epoll, waiting for input"
71
d40c2620 72 create_lttng_session_ok $SESSION_NAME "$TRACE_PATH"
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73
74 lttng_enable_kernel_syscall_ok $SESSION_NAME $SYSCALL_LIST
75 add_context_kernel_ok $SESSION_NAME channel0 pid
76
77 start_lttng_tracing_ok
d40c2620 78 yes | "$CURDIR"/select_poll_epoll --validation-file "$TEST_VALIDATION_OUTPUT_PATH" -t 1
a0b1f42c 79 stop_lttng_tracing_ok
a0b1f42c 80
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81 validate_trace "$SYSCALL_LIST" "$TRACE_PATH"
82 check_trace_content -t 1 --validation-file "$TEST_VALIDATION_OUTPUT_PATH" "$TRACE_PATH"
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83
84 destroy_lttng_session_ok $SESSION_NAME
85
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86 rm -rf "$TRACE_PATH"
87 rm -f "$TEST_VALIDATION_OUTPUT_PATH"
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88}
89
90function test_timeout_cases()
91{
a0b1f42c 92 SESSION_NAME="syscall_payload"
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93 TRACE_PATH=$(mktemp --tmpdir -d "tmp.test_kernel_select_poll_epoll_${FUNCNAME[0]}_trace_path.XXXXXX")
94 TEST_VALIDATION_OUTPUT_PATH=$(mktemp --tmpdir -u "tmp.test_kernel_select_poll_epoll_${FUNCNAME[0]}_validation.XXXXXX")
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95
96 # arm64 does not have epoll_wait
97 uname -m | grep -E "aarch64" >/dev/null 2>&1
98 if test $? = 0; then
99 SYSCALL_LIST="select,pselect6,poll,ppoll,epoll_ctl,epoll_pwait"
100 else
101 SYSCALL_LIST="select,pselect6,poll,ppoll,epoll_ctl,epoll_wait,epoll_pwait"
102 fi
103
104 diag "Timeout cases (1ms) for select, pselect6, poll, ppoll and epoll"
105
d40c2620 106 create_lttng_session_ok $SESSION_NAME "$TRACE_PATH"
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107
108 lttng_enable_kernel_syscall_ok $SESSION_NAME "$SYSCALL_LIST"
109 add_context_kernel_ok $SESSION_NAME channel0 pid
110
111 start_lttng_tracing_ok
d40c2620 112 yes | "$CURDIR"/select_poll_epoll --validation-file "$TEST_VALIDATION_OUTPUT_PATH" -t 2
a0b1f42c 113 stop_lttng_tracing_ok
a0b1f42c 114
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115 validate_trace "$SYSCALL_LIST" "$TRACE_PATH"
116 check_trace_content -t 2 --validation-file "$TEST_VALIDATION_OUTPUT_PATH" "$TRACE_PATH" 2>/dev/null
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117
118 destroy_lttng_session_ok $SESSION_NAME
119
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120 rm -rf "$TRACE_PATH"
121 rm -f "$TEST_VALIDATION_OUTPUT_PATH"
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122}
123
8b3b99e2 124function test_pselect_invalid_fd()
a0b1f42c 125{
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126 SESSION_NAME="syscall_payload"
127 SYSCALL_LIST="pselect6"
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128 TRACE_PATH=$(mktemp --tmpdir -d "tmp.test_kernel_select_poll_epoll_${FUNCNAME[0]}_trace_path.XXXXXX")
129 TEST_VALIDATION_OUTPUT_PATH=$(mktemp --tmpdir -u "tmp.test_kernel_select_poll_epoll_${FUNCNAME[0]}_validation.XXXXXX")
a0b1f42c 130
8b3b99e2 131 diag "pselect with invalid FD"
a0b1f42c 132
d40c2620 133 create_lttng_session_ok $SESSION_NAME "$TRACE_PATH"
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134
135 lttng_enable_kernel_syscall_ok $SESSION_NAME $SYSCALL_LIST
136 add_context_kernel_ok $SESSION_NAME channel0 pid
137
138 start_lttng_tracing_ok
d40c2620 139 yes | "$CURDIR"/select_poll_epoll --validation-file "$TEST_VALIDATION_OUTPUT_PATH" -t 3
a0b1f42c 140 stop_lttng_tracing_ok
a0b1f42c 141
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142 validate_trace "$SYSCALL_LIST" "$TRACE_PATH"
143 check_trace_content -t 3 --validation-file "$TEST_VALIDATION_OUTPUT_PATH" "$TRACE_PATH" 2>/dev/null
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144
145 destroy_lttng_session_ok $SESSION_NAME
146
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147 rm -rf "$TRACE_PATH"
148 rm -f "$TEST_VALIDATION_OUTPUT_PATH"
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149}
150
151function test_big_ppoll()
152{
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153 SESSION_NAME="syscall_payload"
154 SYSCALL_LIST="ppoll"
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155 TRACE_PATH=$(mktemp --tmpdir -d "tmp.test_kernel_select_poll_epoll_${FUNCNAME[0]}_trace_path.XXXXXX")
156 TEST_VALIDATION_OUTPUT_PATH=$(mktemp --tmpdir -u "tmp.test_kernel_select_poll_epoll_${FUNCNAME[0]}_validation.XXXXXX")
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157
158 diag "ppoll with 2047 FDs"
159
d40c2620 160 create_lttng_session_ok $SESSION_NAME "$TRACE_PATH"
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161
162 lttng_enable_kernel_syscall_ok $SESSION_NAME $SYSCALL_LIST
163 add_context_kernel_ok $SESSION_NAME channel0 pid
164
165 start_lttng_tracing_ok
d40c2620 166 yes | "$CURDIR"/select_poll_epoll --validation-file "$TEST_VALIDATION_OUTPUT_PATH" -t 4
a0b1f42c 167 stop_lttng_tracing_ok
a0b1f42c 168
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169 validate_trace "$SYSCALL_LIST" "$TRACE_PATH"
170 check_trace_content -t 4 --validation-file "$TEST_VALIDATION_OUTPUT_PATH" "$TRACE_PATH" 2>/dev/null
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171
172 destroy_lttng_session_ok $SESSION_NAME
173
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174 rm -rf "$TRACE_PATH"
175 rm -f "$TEST_VALIDATION_OUTPUT_PATH"
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176}
177
178function test_ppoll_overflow()
179{
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180 SESSION_NAME="syscall_payload"
181 SYSCALL_LIST="ppoll"
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182 TRACE_PATH=$(mktemp --tmpdir -d "tmp.test_kernel_select_poll_epoll_${FUNCNAME[0]}_trace_path.XXXXXX")
183 TEST_VALIDATION_OUTPUT_PATH=$(mktemp --tmpdir -u "tmp.test_kernel_select_poll_epoll_${FUNCNAME[0]}_validation.XXXXXX")
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184
185 diag "ppoll buffer overflow, should segfault, waits for input"
186
d40c2620 187 create_lttng_session_ok $SESSION_NAME "$TRACE_PATH"
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188
189 lttng_enable_kernel_syscall_ok $SESSION_NAME $SYSCALL_LIST
190 add_context_kernel_ok $SESSION_NAME channel0 pid
191
192 start_lttng_tracing_ok
193 diag "Expect segfaults"
d40c2620 194 yes | "$CURDIR"/select_poll_epoll --validation-file "$TEST_VALIDATION_OUTPUT_PATH" -t 5
a0b1f42c 195 stop_lttng_tracing_ok
a0b1f42c 196
d40c2620 197 validate_trace "$SYSCALL_LIST" "$TRACE_PATH"
a0b1f42c 198
d40c2620 199 check_trace_content -t 5 --validation-file "$TEST_VALIDATION_OUTPUT_PATH" "$TRACE_PATH" 2>/dev/null
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200
201 destroy_lttng_session_ok $SESSION_NAME
202
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203 rm -rf "$TRACE_PATH"
204 rm -f "$TEST_VALIDATION_OUTPUT_PATH"
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205}
206
207function test_pselect_invalid_ptr()
208{
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209 SESSION_NAME="syscall_payload"
210 SYSCALL_LIST="pselect6"
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211 TRACE_PATH=$(mktemp --tmpdir -d "tmp.test_kernel_select_poll_epoll_${FUNCNAME[0]}_trace_path.XXXXXX")
212 TEST_VALIDATION_OUTPUT_PATH=$(mktemp --tmpdir -u "tmp.test_kernel_select_poll_epoll_${FUNCNAME[0]}_validation.XXXXXX")
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213
214 diag "pselect with invalid pointer, waits for input"
215
d40c2620 216 create_lttng_session_ok $SESSION_NAME "$TRACE_PATH"
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217
218 lttng_enable_kernel_syscall_ok $SESSION_NAME $SYSCALL_LIST
219 add_context_kernel_ok $SESSION_NAME channel0 pid
220
221 start_lttng_tracing_ok
d40c2620 222 yes | "$CURDIR"/select_poll_epoll --validation-file "$TEST_VALIDATION_OUTPUT_PATH" -t 6
a0b1f42c 223 stop_lttng_tracing_ok
a0b1f42c 224
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225 validate_trace "$SYSCALL_LIST" "$TRACE_PATH"
226 check_trace_content -t 6 --validation-file "$TEST_VALIDATION_OUTPUT_PATH" "$TRACE_PATH" 2>/dev/null
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227
228 destroy_lttng_session_ok $SESSION_NAME
229
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230 rm -rf "$TRACE_PATH"
231 rm -f "$TEST_VALIDATION_OUTPUT_PATH"
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232}
233
234function test_ppoll_ulong_max()
235{
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236 SESSION_NAME="syscall_payload"
237 SYSCALL_LIST="ppoll"
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238 TRACE_PATH=$(mktemp --tmpdir -d "tmp.test_kernel_select_poll_epoll_${FUNCNAME[0]}_trace_path.XXXXXX")
239 TEST_VALIDATION_OUTPUT_PATH=$(mktemp --tmpdir -u "tmp.test_kernel_select_poll_epoll_${FUNCNAME[0]}_validation.XXXXXX")
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240
241 diag "ppoll with ulong_max fds, waits for input"
242
d40c2620 243 create_lttng_session_ok $SESSION_NAME "$TRACE_PATH"
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244
245 lttng_enable_kernel_syscall_ok $SESSION_NAME $SYSCALL_LIST
246 add_context_kernel_ok $SESSION_NAME channel0 pid
247
248 start_lttng_tracing_ok
d40c2620 249 yes | "$CURDIR"/select_poll_epoll --validation-file "$TEST_VALIDATION_OUTPUT_PATH" -t 7
a0b1f42c 250 stop_lttng_tracing_ok
a0b1f42c 251
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252 validate_trace "$SYSCALL_LIST" "$TRACE_PATH"
253 check_trace_content -t 7 --validation-file "$TEST_VALIDATION_OUTPUT_PATH" "$TRACE_PATH" 2>/dev/null
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254
255 destroy_lttng_session_ok $SESSION_NAME
256
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257 rm -rf "$TRACE_PATH"
258 rm -f "$TEST_VALIDATION_OUTPUT_PATH"
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259}
260
261function test_epoll_pwait_invalid_ptr()
262{
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263 SESSION_NAME="syscall_payload"
264 SYSCALL_LIST="epoll_pwait"
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265 TRACE_PATH=$(mktemp --tmpdir -d "tmp.test_kernel_select_poll_epoll_${FUNCNAME[0]}_trace_path.XXXXXX")
266 TEST_VALIDATION_OUTPUT_PATH=$(mktemp --tmpdir -u "tmp.test_kernel_select_poll_epoll_${FUNCNAME[0]}_validation.XXXXXX")
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267
268 diag "epoll_pwait with invalid pointer, waits for input"
269
d40c2620 270 create_lttng_session_ok $SESSION_NAME "$TRACE_PATH"
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271
272 lttng_enable_kernel_syscall_ok $SESSION_NAME $SYSCALL_LIST
273 add_context_kernel_ok $SESSION_NAME channel0 pid
274
275 start_lttng_tracing_ok
d40c2620 276 yes | "$CURDIR"/select_poll_epoll --validation-file "$TEST_VALIDATION_OUTPUT_PATH" -t 8
a0b1f42c 277 stop_lttng_tracing_ok
a0b1f42c 278
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279 validate_trace "$SYSCALL_LIST" "$TRACE_PATH"
280 check_trace_content -t 8 --validation-file "$TEST_VALIDATION_OUTPUT_PATH" "$TRACE_PATH" 2>/dev/null
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281
282 destroy_lttng_session_ok $SESSION_NAME
283
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284 rm -rf "$TRACE_PATH"
285 rm -f "$TEST_VALIDATION_OUTPUT_PATH"
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286}
287
288function test_epoll_pwait_int_max()
289{
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290 SESSION_NAME="syscall_payload"
291 SYSCALL_LIST="epoll_pwait"
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292 TRACE_PATH=$(mktemp --tmpdir -d "tmp.test_kernel_select_poll_epoll_${FUNCNAME[0]}_trace_path.XXXXXX")
293 TEST_VALIDATION_OUTPUT_PATH=$(mktemp --tmpdir -u "tmp.test_kernel_select_poll_epoll_${FUNCNAME[0]}_validation.XXXXXX")
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294
295 diag "epoll_pwait with maxevents set to INT_MAX, waits for input"
296
d40c2620 297 create_lttng_session_ok $SESSION_NAME "$TRACE_PATH"
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298
299 lttng_enable_kernel_syscall_ok $SESSION_NAME $SYSCALL_LIST
300 add_context_kernel_ok $SESSION_NAME channel0 pid
301
302 start_lttng_tracing_ok
d40c2620 303 yes | "$CURDIR"/select_poll_epoll --validation-file "$TEST_VALIDATION_OUTPUT_PATH" -t 9
a0b1f42c 304 stop_lttng_tracing_ok
a0b1f42c 305
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306 validate_trace "$SYSCALL_LIST" "$TRACE_PATH"
307 check_trace_content -t 9 --validation-file "$TEST_VALIDATION_OUTPUT_PATH" "$TRACE_PATH" 2>/dev/null
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308
309 destroy_lttng_session_ok $SESSION_NAME
310
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311 rm -rf "$TRACE_PATH"
312 rm -f "$TEST_VALIDATION_OUTPUT_PATH"
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313}
314
315function test_ppoll_concurrent()
316{
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317 SESSION_NAME="syscall_payload"
318 SYSCALL_LIST="ppoll"
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319 TRACE_PATH=$(mktemp --tmpdir -d "tmp.test_kernel_select_poll_epoll_${FUNCNAME[0]}_trace_path.XXXXXX")
320 TEST_VALIDATION_OUTPUT_PATH=$(mktemp --tmpdir -u "tmp.test_kernel_select_poll_epoll_${FUNCNAME[0]}_validation.XXXXXX")
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321
322 diag "ppoll with concurrent updates of the structure from user-space, stress test (3000 iterations), waits for input + timeout 1ms"
323
d40c2620 324 create_lttng_session_ok $SESSION_NAME "$TRACE_PATH"
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325
326 lttng_enable_kernel_syscall_ok $SESSION_NAME $SYSCALL_LIST
327 add_context_kernel_ok $SESSION_NAME channel0 pid
328
329 start_lttng_tracing_ok
d40c2620 330 yes | "$CURDIR"/select_poll_epoll --validation-file "$TEST_VALIDATION_OUTPUT_PATH" -t 10
a0b1f42c 331 stop_lttng_tracing_ok
a0b1f42c 332
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333 validate_trace "$SYSCALL_LIST" "$TRACE_PATH"
334 check_trace_content -t 10 --validation-file "$TEST_VALIDATION_OUTPUT_PATH" "$TRACE_PATH" 2>/dev/null
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335
336 destroy_lttng_session_ok $SESSION_NAME
337
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338 rm -rf "$TRACE_PATH"
339 rm -f "$TEST_VALIDATION_OUTPUT_PATH"
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340}
341
342function test_epoll_pwait_concurrent()
343{
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344 SESSION_NAME="syscall_payload"
345 SYSCALL_LIST="epoll_ctl,epoll_pwait"
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346 TRACE_PATH=$(mktemp --tmpdir -d "tmp.test_kernel_select_poll_epoll_${FUNCNAME[0]}_trace_path.XXXXXX")
347 TEST_VALIDATION_OUTPUT_PATH=$(mktemp --tmpdir -u "tmp.test_kernel_select_poll_epoll_${FUNCNAME[0]}_validation.XXXXXX")
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348
349 diag "epoll_pwait with concurrent munmap of the buffer from user-space, should randomly segfault, run multiple times, waits for input + timeout 1ms"
350
d40c2620 351 create_lttng_session_ok $SESSION_NAME "$TRACE_PATH"
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352
353 lttng_enable_kernel_syscall_ok $SESSION_NAME $SYSCALL_LIST
354 add_context_kernel_ok $SESSION_NAME channel0 pid
355
356 start_lttng_tracing_ok
357 diag "Expect segfaults"
358 for i in $(seq 1 100); do
d40c2620 359 yes | "$CURDIR"/select_poll_epoll --validation-file "$TEST_VALIDATION_OUTPUT_PATH" -t 11
a0b1f42c 360 done
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361 stop_lttng_tracing_ok
362
363 # epoll_wait is not always generated in the trace (stress test)
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364 validate_trace "epoll_ctl" "$TRACE_PATH"
365 check_trace_content -t 11 --validation-file "$TEST_VALIDATION_OUTPUT_PATH" "$TRACE_PATH" 2>/dev/null
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366
367 destroy_lttng_session_ok $SESSION_NAME
368
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369 rm -rf "$TRACE_PATH"
370 rm -f "$TEST_VALIDATION_OUTPUT_PATH"
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371}
372
373# MUST set TESTDIR before calling those functions
374plan_tests $NUM_TESTS
375
376print_test_banner "$TEST_DESC"
377
378if [ "$(id -u)" == "0" ]; then
379 isroot=1
380else
381 isroot=0
382fi
383
384skip $isroot "Root access is needed. Skipping all tests." $NUM_TESTS ||
385{
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386 validate_lttng_modules_present
387
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388 start_lttng_sessiond
389
390 test_working_cases
391 test_timeout_cases
8b3b99e2 392 test_pselect_invalid_fd
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393 test_big_ppoll
394 test_ppoll_overflow
395 test_pselect_invalid_ptr
396 test_ppoll_ulong_max
397 test_epoll_pwait_invalid_ptr
398 test_epoll_pwait_int_max
399 test_ppoll_concurrent
400 test_epoll_pwait_concurrent
401
402 stop_lttng_sessiond
403
404 NEW_WARNING=$(dmesg | grep " WARNING:" | cut -d' ' -f1 | tail -1)
405 NEW_OOPS=$(dmesg | grep " OOPS:" | cut -d' ' -f1 | tail -1)
406 NEW_BUG=$(dmesg | grep " BUG:" | cut -d' ' -f1 | tail -1)
407
408 if test "$LAST_WARNING" != "$NEW_WARNING"; then
409 fail "New WARNING generated"
410 fi
411 if test "$LAST_OOPS" != "$NEW_OOPS"; then
412 fail "New OOPS generated"
413 fi
414 if test "$LAST_BUG" != "$NEW_BUG"; then
415 fail "New BUG generated"
416 fi
417}
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