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authorStan Shebs <shebs@codesourcery.com>1999-04-16 01:34:07 +0000
committerStan Shebs <shebs@codesourcery.com>1999-04-16 01:34:07 +0000
commit071ea11e85eb9d529cc5eb3d35f6247466a21b99 (patch)
tree5deda65b8d7b04d1f4cbc534c3206d328e1267ec /gdb/testsuite/gdb.trace/circ.exp
parent1730ec6b1848f0f32154277f788fb29f88d8475b (diff)
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Initial creation of sourceware repository
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-# Copyright (C) 1998 Free Software Foundation, Inc.
-
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-
-# Please email any bugs, comments, and/or additions to this file to:
-# bug-gdb@prep.ai.mit.edu
-
-if [istarget "m68k-*-elf"] then {
- pass "Test not supported on this target"
- return;
-}
-
-load_lib "trace-support.exp"
-
-if $tracelevel then {
- strace $tracelevel
-}
-
-set prms_id 0
-set bug_id 0
-
-set testfile "circ"
-set srcfile ${testfile}.c
-set binfile $objdir/$subdir/$testfile
-
-if { [gdb_compile "$srcdir/$subdir/$srcfile" $binfile \
- executable {debug additional_flags="-gdwarf"}] != "" } {
- gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
-}
-
-# Tests:
-# 1) Set up a trace experiment that will collect approximately 10 frames,
-# requiring more than 512 but less than 1024 bytes of cache buffer.
-# (most targets should have at least 1024 bytes of cache buffer!)
-# Run and confirm that it collects all 10 frames.
-# 2) Artificially limit the trace buffer to 512 bytes, and rerun the
-# experiment. Confirm that the first several frames are collected,
-# but that the last several are not.
-# 3) Set trace buffer to circular mode, still with the artificial limit
-# of 512 bytes, and rerun the experiment. Confirm that the last
-# several frames are collected, but the first several are not.
-#
-
-# return 0 for success, 1 for failure
-proc run_trace_experiment { pass } {
- gdb_run_cmd
-
- if [gdb_test "tstart" \
- "\[\r\n\]*" \
- "start trace experiment, pass $pass"] then { return 1; }
- if [gdb_test "continue" \
- "Continuing.*Breakpoint \[0-9\]+, end.*" \
- "run to end, pass $pass"] then { return 1; }
- if [gdb_test "tstop" \
- "\[\r\n\]*" \
- "stop trace experiment, pass $pass"] then { return 1; }
- return 0;
-}
-
-# return 0 for success, 1 for failure
-proc set_a_tracepoint { func } {
- if [gdb_test "trace $func" \
- "Tracepoint \[0-9\]+ at .*" \
- "set tracepoint at $func"] then {
- return 1;
- }
- if [gdb_trace_setactions "set actions for $func" \
- "" \
- "collect testload" "^$"] then {
- return 1;
- }
- return 0;
-}
-
-# return 0 for success, 1 for failure
-proc setup_tracepoints { } {
- gdb_delete_tracepoints
- if [set_a_tracepoint func0] then { return 1; }
- if [set_a_tracepoint func1] then { return 1; }
- if [set_a_tracepoint func2] then { return 1; }
- if [set_a_tracepoint func3] then { return 1; }
- if [set_a_tracepoint func4] then { return 1; }
- if [set_a_tracepoint func5] then { return 1; }
- if [set_a_tracepoint func6] then { return 1; }
- if [set_a_tracepoint func7] then { return 1; }
- if [set_a_tracepoint func8] then { return 1; }
- if [set_a_tracepoint func9] then { return 1; }
- return 0;
-}
-
-# return 0 for success, 1 for failure
-proc trace_buffer_normal { } {
- if [gdb_test "maint packet QTBuffer:size:ffffffff" \
- "received: .OK." ""] then {
- pass "This test cannot be run on this target"
- return 1;
- }
- if [gdb_test "maint packet QTBuffer:circular:0" \
- "received: .OK." ""] then {
- pass "This test cannot be run on this target"
- return 1;
- }
- return 0;
-}
-
-# return 0 for success, 1 for failure
-proc gdb_trace_circular_tests { } {
-
- # We generously give ourselves one "pass" if we successfully
- # detect that this test cannot be run on this target!
- if { ![gdb_target_supports_trace] } then {
- pass "Current target does not supporst trace"
- return 1;
- }
-
- if [trace_buffer_normal] then { return 1; }
-
- gdb_test "break begin" "" ""
- gdb_test "break end" "" ""
- gdb_test "tstop" "" ""
- gdb_test "tfind none" "" ""
-
- if [setup_tracepoints] then { return 1; }
-
- # First, run the trace experiment with default attributes:
- # Make sure it behaves as expected.
- if [run_trace_experiment 1] then { return 1; }
- if [gdb_test "tfind start" \
- "#0 func0 .*" \
- "find frame zero, pass 1"] then { return 1; }
-
- if [gdb_test "tfind 9" \
- "#0 func9 .*" \
- "find frame nine, pass 1"] then { return 1; }
-
- if [gdb_test "tfind none" \
- "#0 end .*" \
- "quit trace debugging, pass 1"] then { return 1; }
-
- # Then, shrink the trace buffer so that it will not hold
- # all ten trace frames. Verify that frame zero is still
- # collected, but frame nine is not.
- if [gdb_test "maint packet QTBuffer:size:200" \
- "received: .OK." "shrink the target trace buffer"] then {
- return 1;
- }
- if [run_trace_experiment 2] then { return 1; }
- if [gdb_test "tfind start" \
- "#0 func0 .*" \
- "find frame zero, pass 2"] then { return 1; }
-
- if [gdb_test "tfind 9" \
- ".* failed to find .*" \
- "fail to find frame nine, pass 2"] then { return 1; }
-
- if [gdb_test "tfind none" \
- "#0 end .*" \
- "quit trace debugging, pass 2"] then { return 1; }
-
- # Finally, make the buffer circular. Now when it runs out of
- # space, it should wrap around and overwrite the earliest frames.
- # This means that:
- # 1) frame zero will be overwritten and therefore unavailable
- # 2) the earliest frame in the buffer will be other-than-zero
- # 3) frame nine will be available (unlike on pass 2).
- if [gdb_test "maint packet QTBuffer:circular:1" \
- "received: .OK." "make the target trace buffer circular"] then {
- return 1;
- }
- if [run_trace_experiment 3] then { return 1; }
- if [gdb_test "tfind start" \
- "#0 func\[1-9\] .*" \
- "first frame is NOT frame zero, pass 3"] then { return 1; }
-
- if [gdb_test "tfind 9" \
- "#0 func9 .*" \
- "find frame nine, pass 3"] then { return 1; }
-
- if [gdb_test "tfind none" \
- "#0 end .*" \
- "quit trace debugging, pass 3"] then { return 1; }
-
- return 0;
-}
-
-# Start with a fresh gdb.
-
-gdb_exit
-gdb_start
-gdb_reinitialize_dir $srcdir/$subdir
-gdb_load $binfile
-
-if [target_info exists gdb_stub] {
- gdb_step_for_stub;
-}
-# Body of test encased in a proc so we can return prematurely.
-if { ![gdb_trace_circular_tests] } then {
- # Set trace buffer attributes back to normal
- trace_buffer_normal;
-}
-
-# Finished!
-gdb_test "tfind none" "" ""