e22f8b7c8c
Switch the license of all .f and .f90 files to GPLv3.
Switch the license of all .s and .S files to GPLv3.
215 lines
6.5 KiB
Text
215 lines
6.5 KiB
Text
# Copyright 1998, 2007 Free Software Foundation, Inc.
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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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# Please email any bugs, comments, and/or additions to this file to:
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# bug-gdb@prep.ai.mit.edu
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if [istarget "m68k-*-elf"] then {
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pass "Test not supported on this target"
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return;
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}
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load_lib "trace-support.exp"
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if $tracelevel then {
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strace $tracelevel
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}
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set prms_id 0
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set bug_id 0
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set testfile "circ"
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set srcfile ${testfile}.c
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set binfile $objdir/$subdir/$testfile
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if { [gdb_compile "$srcdir/$subdir/$srcfile" $binfile \
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executable {debug nowarnings}] != "" } {
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untested circ.exp
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return -1
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}
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# Tests:
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# 1) Set up a trace experiment that will collect approximately 10 frames,
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# requiring more than 512 but less than 1024 bytes of cache buffer.
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# (most targets should have at least 1024 bytes of cache buffer!)
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# Run and confirm that it collects all 10 frames.
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# 2) Artificially limit the trace buffer to 512 bytes, and rerun the
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# experiment. Confirm that the first several frames are collected,
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# but that the last several are not.
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# 3) Set trace buffer to circular mode, still with the artificial limit
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# of 512 bytes, and rerun the experiment. Confirm that the last
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# several frames are collected, but the first several are not.
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#
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# return 0 for success, 1 for failure
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proc run_trace_experiment { pass } {
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gdb_run_cmd
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if [gdb_test "tstart" \
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"\[\r\n\]*" \
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"start trace experiment, pass $pass"] then { return 1; }
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if [gdb_test "continue" \
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"Continuing.*Breakpoint \[0-9\]+, end.*" \
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"run to end, pass $pass"] then { return 1; }
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if [gdb_test "tstop" \
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"\[\r\n\]*" \
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"stop trace experiment, pass $pass"] then { return 1; }
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return 0;
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}
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# return 0 for success, 1 for failure
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proc set_a_tracepoint { func } {
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if [gdb_test "trace $func" \
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"Tracepoint \[0-9\]+ at .*" \
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"set tracepoint at $func"] then {
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return 1;
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}
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if [gdb_trace_setactions "set actions for $func" \
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"" \
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"collect testload" "^$"] then {
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return 1;
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}
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return 0;
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}
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# return 0 for success, 1 for failure
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proc setup_tracepoints { } {
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gdb_delete_tracepoints
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if [set_a_tracepoint func0] then { return 1; }
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if [set_a_tracepoint func1] then { return 1; }
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if [set_a_tracepoint func2] then { return 1; }
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if [set_a_tracepoint func3] then { return 1; }
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if [set_a_tracepoint func4] then { return 1; }
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if [set_a_tracepoint func5] then { return 1; }
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if [set_a_tracepoint func6] then { return 1; }
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if [set_a_tracepoint func7] then { return 1; }
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if [set_a_tracepoint func8] then { return 1; }
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if [set_a_tracepoint func9] then { return 1; }
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return 0;
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}
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# return 0 for success, 1 for failure
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proc trace_buffer_normal { } {
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if [gdb_test "maint packet QTBuffer:size:ffffffff" \
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"received: .OK." ""] then {
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pass "This test cannot be run on this target"
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return 1;
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}
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if [gdb_test "maint packet QTBuffer:circular:0" \
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"received: .OK." ""] then {
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pass "This test cannot be run on this target"
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return 1;
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}
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return 0;
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}
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# return 0 for success, 1 for failure
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proc gdb_trace_circular_tests { } {
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# We generously give ourselves one "pass" if we successfully
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# detect that this test cannot be run on this target!
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if { ![gdb_target_supports_trace] } then {
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pass "Current target does not supporst trace"
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return 1;
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}
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if [trace_buffer_normal] then { return 1; }
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gdb_test "break begin" "" ""
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gdb_test "break end" "" ""
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gdb_test "tstop" "" ""
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gdb_test "tfind none" "" ""
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if [setup_tracepoints] then { return 1; }
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# First, run the trace experiment with default attributes:
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# Make sure it behaves as expected.
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if [run_trace_experiment 1] then { return 1; }
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if [gdb_test "tfind start" \
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"#0 func0 .*" \
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"find frame zero, pass 1"] then { return 1; }
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if [gdb_test "tfind 9" \
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"#0 func9 .*" \
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"find frame nine, pass 1"] then { return 1; }
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if [gdb_test "tfind none" \
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"#0 end .*" \
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"quit trace debugging, pass 1"] then { return 1; }
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# Then, shrink the trace buffer so that it will not hold
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# all ten trace frames. Verify that frame zero is still
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# collected, but frame nine is not.
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if [gdb_test "maint packet QTBuffer:size:200" \
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"received: .OK." "shrink the target trace buffer"] then {
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return 1;
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}
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if [run_trace_experiment 2] then { return 1; }
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if [gdb_test "tfind start" \
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"#0 func0 .*" \
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"find frame zero, pass 2"] then { return 1; }
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if [gdb_test "tfind 9" \
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".* failed to find .*" \
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"fail to find frame nine, pass 2"] then { return 1; }
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if [gdb_test "tfind none" \
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"#0 end .*" \
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"quit trace debugging, pass 2"] then { return 1; }
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# Finally, make the buffer circular. Now when it runs out of
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# space, it should wrap around and overwrite the earliest frames.
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# This means that:
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# 1) frame zero will be overwritten and therefore unavailable
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# 2) the earliest frame in the buffer will be other-than-zero
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# 3) frame nine will be available (unlike on pass 2).
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if [gdb_test "maint packet QTBuffer:circular:1" \
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"received: .OK." "make the target trace buffer circular"] then {
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return 1;
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}
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if [run_trace_experiment 3] then { return 1; }
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if [gdb_test "tfind start" \
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"#0 func\[1-9\] .*" \
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"first frame is NOT frame zero, pass 3"] then { return 1; }
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if [gdb_test "tfind 9" \
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"#0 func9 .*" \
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"find frame nine, pass 3"] then { return 1; }
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if [gdb_test "tfind none" \
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"#0 end .*" \
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"quit trace debugging, pass 3"] then { return 1; }
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return 0;
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}
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# Start with a fresh gdb.
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gdb_exit
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gdb_start
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gdb_reinitialize_dir $srcdir/$subdir
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gdb_load $binfile
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if [target_info exists gdb_stub] {
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gdb_step_for_stub;
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}
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# Body of test encased in a proc so we can return prematurely.
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if { ![gdb_trace_circular_tests] } then {
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# Set trace buffer attributes back to normal
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trace_buffer_normal;
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}
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# Finished!
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gdb_test "tfind none" "" ""
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