2013-01-01 07:33:28 +01:00
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# Copyright (C) 2012-2013 Free Software Foundation, Inc.
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2012-04-27 22:52:06 +02:00
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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set testfile stap-probe
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# Run the tests. We run the tests two different ways: once with a
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# plain probe, and once with a probe that has an associated semaphore.
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# This returns -1 on failure to compile or start, 0 otherwise.
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proc stap_test {exec_name {arg ""}} {
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global testfile hex
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if {[prepare_for_testing ${testfile}.exp ${exec_name} ${testfile}.c \
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[concat $arg debug]]} {
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return -1
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}
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if ![runto_main] {
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return -1
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}
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gdb_test "print \$_probe_argc" "No SystemTap probe at PC $hex" \
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"check argument not at probe point"
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gdb_test "info probes stap" \
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"test *user *$hex .*" \
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"info probes stap"
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if {[runto "-pstap test:user"]} {
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pass "run to -pstap test:user"
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} else {
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fail "run to -pstap test:user"
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}
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# Test probe arguments.
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gdb_test "print \$_probe_argc" " = 1" \
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"print \$_probe_argc for probe user"
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gdb_test "print \$_probe_arg0 == x" " = 1" \
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"check \$_probe_arg0 for probe user"
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gdb_test "print \$_probe_arg1" \
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"Invalid probe argument 1 -- probe has 1 arguments available" \
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"check \$_probe_arg1 for probe user"
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# Set a breakpoint with multiple probe locations.
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gdb_test "break -pstap test:two" \
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"Breakpoint \[0-9\]+ at $hex.*2 locations.*" \
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"set multi-location probe breakpoint (probe two)"
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# Reinit GDB, set a breakpoint on probe m4.
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delete_breakpoints
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if {[runto "-pstap test:m4"]} {
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pass "run to -pstap test:m4"
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} else {
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fail "run to -pstap test:m4"
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}
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# Testing probe arguments.
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gdb_test "print \$_probe_argc" " = 3" \
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"print \$_probe_argc for probe m4"
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gdb_test "print \$_probe_arg0" " = 42" \
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"check \$_probe_arg0 for probe m4"
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gdb_test "print (const char *) \$_probe_arg1" \
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" = $hex .This is a test message.*" \
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"check \$_probe_arg1 for probe m4"
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gdb_test "print \$_probe_arg2 == v" " = 1" \
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"check \$_probe_arg2 for probe m4"
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# Reinit GDB, set a breakpoint on probe ps.
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delete_breakpoints
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if {[runto "-pstap test:ps"]} {
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pass "run to -pstap test:m4"
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} else {
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fail "run to -pstap test:m4"
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}
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gdb_test "print \$_probe_argc" " = 3" \
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"print \$_probe_argc for probe ps"
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gdb_test "print (const char *) \$_probe_arg1" \
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" = $hex .This is another test message.*" \
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"print \$_probe_arg1 for probe ps"
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return 0
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}
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proc stap_test_no_debuginfo {exec_name {arg ""}} {
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global testfile hex
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if {[prepare_for_testing ${testfile}.exp ${exec_name} ${testfile}.c \
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{$arg nodebug optimize=-O2}]} {
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return -1
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}
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if {[runto "-pstap test:user"]} {
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pass "run to -pstap test:user"
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} else {
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fail "run to -pstap test:user"
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}
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# Test probe arguments.
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gdb_test "print \$_probe_argc" " = 1" \
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"print \$_probe_argc for probe user"
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gdb_test "print \$_probe_arg0 == 23" " = 1" \
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"check \$_probe_arg0 for probe user"
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gdb_test "print \$_probe_arg1" \
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"Invalid probe argument 1 -- probe has 1 arguments available" \
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"check \$_probe_arg1 for probe user"
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# Set a breakpoint with multiple probe locations.
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# In this scenario, we may expect more than 2 locations because of
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# the optimizations (inlining, loop unrolling, etc).
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gdb_test "break -pstap test:two" \
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"Breakpoint .* at $hex.*\[0-9\]+ locations.*" \
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"set multi-location probe breakpoint (probe two)"
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# Reinit GDB, set a breakpoint on probe m4.
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delete_breakpoints
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if {[runto "-pstap test:m4"]} {
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pass "run to -pstap test:m4"
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} else {
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fail "run to -pstap test:m4"
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}
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# Testing probe arguments.
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gdb_test "print \$_probe_argc" " = 3" \
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"print \$_probe_argc for probe m4"
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gdb_test "print \$_probe_arg0" " = 42" \
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"check \$_probe_arg0 for probe m4"
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gdb_test "print (const char *) \$_probe_arg1" \
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" = $hex .This is a test message.*" \
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"check \$_probe_arg1 for probe m4"
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gdb_test "print \$_probe_arg2 == 0" " = 1" \
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"check \$_probe_arg2 for probe m4"
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# Reinit GDB, set a breakpoint on probe ps.
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delete_breakpoints
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if {[runto "-pstap test:ps"]} {
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pass "run to -pstap test:m4"
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} else {
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fail "run to -pstap test:m4"
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}
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gdb_test "print \$_probe_argc" " = 3" \
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"print \$_probe_argc for probe ps"
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gdb_test "print (const char *) \$_probe_arg1" \
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" = $hex .This is another test message.*" \
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"print \$_probe_arg1 for probe ps"
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return 0
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}
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with_test_prefix "without semaphore, not optimized" {
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if {[stap_test "stap-probe-nosem-noopt"] == -1} {
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untested stap-probe.exp
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return -1
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}
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}
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with_test_prefix "with semaphore, not optimized" {
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stap_test "stap-probe-sem-noopt" "-DUSE_PROBES"
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}
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with_test_prefix "without semaphore, optimized" {
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stap_test_no_debuginfo "stap-probe-nosem-opt"
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}
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with_test_prefix "with semaphore, optimized" {
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stap_test_no_debuginfo "stap-probe-sem-opt" "-DUSE_PROBES"
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}
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