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# This testcase is part of GDB, the GNU debugger.
#
# Copyright 2013-2021 Free Software Foundation, Inc.
#
# Contributed by Intel Corp. <christian.himpel@intel.com>
#
# 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 3 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, see <http://www.gnu.org/licenses/>.
if { [skip_btrace_tests] } {
unsupported "target does not support record-btrace"
return -1
}
standard_testfile
if [prepare_for_testing "failed to prepare" $testfile {} {debug}] {
return -1
}
if ![runto_main] {
untested "failed to run to main"
return -1
}
# start btrace
gdb_test_no_output "record btrace"
# set bp after increment loop and continue
set bp_location [gdb_get_line_number "bp.1" $testfile.c]
gdb_breakpoint $bp_location
gdb_continue_to_breakpoint "cont to $bp_location" ".*$testfile.c:$bp_location.*"
proc rec_fun_all {} {
gdb_test "record function-call-history 1" [multi_line \
"1\tmain" \
"2\tinc" \
"3\tmain" \
"4\tinc" \
"5\tmain" \
"6\tinc" \
"7\tmain" \
"8\tinc" \
"9\tmain" \
"10\tinc" \
"11\tmain" \
"12\tinc" \
"13\tmain" \
"14\tinc" \
"15\tmain" \
"16\tinc" \
"17\tmain" \
"18\tinc" \
"19\tmain" \
"20\tinc" \
"21\tmain"]
}
# show function call history with unlimited size, we expect to see all 21 entries
gdb_test_no_output "set record function-call-history-size 0"
with_test_prefix "size unlimited" rec_fun_all
# show function call history with size of 21, we expect to see all 21 entries
gdb_test_no_output "set record function-call-history-size 21"
with_test_prefix "size 21" rec_fun_all
# show first 15 entries
gdb_test_no_output "set record function-call-history-size 15"
gdb_test "record function-call-history 1" [multi_line \
"1\tmain" \
"2\tinc" \
"3\tmain" \
"4\tinc" \
"5\tmain" \
"6\tinc" \
"7\tmain" \
"8\tinc" \
"9\tmain" \
"10\tinc" \
"11\tmain" \
"12\tinc" \
"13\tmain" \
"14\tinc" \
"15\tmain"] "forward - 1"
# show last 6 entries
gdb_test "record function-call-history +" [multi_line \
"16\tinc" \
"17\tmain" \
"18\tinc" \
"19\tmain" \
"20\tinc" \
"21\tmain"] "forward - 2"
# moving further should not work
gdb_test "record function-call-history +" "At the end of the branch trace record\\." "forward - 3"
# make sure we cannot move any further a second time
gdb_test "record function-call-history +" "At the end of the branch trace record\\." "forward - 4"
# moving back showing the latest 15 function calls
gdb_test "record function-call-history -" [multi_line \
"7\tmain" \
"8\tinc" \
"9\tmain" \
"10\tinc" \
"11\tmain" \
"12\tinc" \
"13\tmain" \
"14\tinc" \
"15\tmain" \
"16\tinc" \
"17\tmain" \
"18\tinc" \
"19\tmain" \
"20\tinc" \
"21\tmain"] "backward - 1"
# moving further back shows the 6 first function calls
gdb_test "record function-call-history -" [multi_line \
"1\tmain" \
"2\tinc" \
"3\tmain" \
"4\tinc" \
"5\tmain" \
"6\tinc"] "backward - 2"
# moving further back shouldn't work
gdb_test "record function-call-history -" "At the start of the branch trace record\\." "backward - 3"
# make sure we cannot move any further back
gdb_test "record function-call-history -" "At the start of the branch trace record\\." "backward - 4"
# don't mess around with path names
gdb_test_no_output "set filename-display basename"
# moving forward again, but this time with file and line number, expected to see the first 15 entries
gdb_test "record function-call-history /l +" [multi_line \
"\[0-9\]*\tmain\tat $srcfile:40,41" \
"\[0-9\]*\tinc\tat $srcfile:22,24" \
"\[0-9\]*\tmain\tat $srcfile:40,41" \
"\[0-9\]*\tinc\tat $srcfile:22,24" \
"\[0-9\]*\tmain\tat $srcfile:40,41" \
"\[0-9\]*\tinc\tat $srcfile:22,24" \
"\[0-9\]*\tmain\tat $srcfile:40,41" \
"\[0-9\]*\tinc\tat $srcfile:22,24" \
"\[0-9\]*\tmain\tat $srcfile:40,41" \
"\[0-9\]*\tinc\tat $srcfile:22,24" \
"\[0-9\]*\tmain\tat $srcfile:40,41" \
"\[0-9\]*\tinc\tat $srcfile:22,24" \
"\[0-9\]*\tmain\tat $srcfile:40,41" \
"\[0-9\]*\tinc\tat $srcfile:22,24" \
"\[0-9\]*\tmain\tat $srcfile:40,41" \
] "forward /l - 1"
# moving forward and expect to see the latest 6 entries
gdb_test "record function-call-history /l +" [multi_line \
"\[0-9\]*\tinc\tat $srcfile:22,24" \
"\[0-9\]*\tmain\tat $srcfile:40,41" \
"\[0-9\]*\tinc\tat $srcfile:22,24" \
"\[0-9\]*\tmain\tat $srcfile:40,41" \
"\[0-9\]*\tinc\tat $srcfile:22,24" \
"\[0-9\]*\tmain\tat $srcfile:40,43" \
] "forward /l - 2"
# moving further forward shouldn't work
gdb_test "record function-call-history /l +" "At the end of the branch trace record\\." "forward /l - 3"
gdb_test "record function-call-history /l" "At the end of the branch trace record\\." "forward /l - 4"
set expected_range [multi_line \
"4\tinc" \
"5\tmain" \
"6\tinc" \
"7\tmain" \
"8\tinc" \
"9\tmain" \
"10\tinc"]
# show functions in instruction range
gdb_test "record function-call-history 4,10" $expected_range
gdb_test "record function-call-history 4,+7" $expected_range
gdb_test "record function-call-history 10,-7" $expected_range
gdb_test "record function-call-history 4,4" "4\tinc\r"
# set bp after fib recursion and continue
set bp_location [gdb_get_line_number "bp.2" $testfile.c]
gdb_breakpoint $bp_location
gdb_continue_to_breakpoint "cont to $bp_location" ".*$testfile.c:$bp_location.*"
# at this point we expect to have main, fib, ..., fib, main, where fib occurs 9 times,
# so we limit the output to only show the latest 11 function calls
gdb_test_no_output "set record function-call-history-size 11"
gdb_test "record function-call-history" [multi_line \
"21\tmain" \
"22\tfib" \
"23\tfib" \
"24\tfib" \
"25\tfib" \
"26\tfib" \
"27\tfib" \
"28\tfib" \
"29\tfib" \
"30\tfib" \
"31\tmain"] "recursive"
# show indented function call history for fib
gdb_test "record function-call-history /c 21, +11" [multi_line \
"21\tmain" \
"22\t fib" \
"23\t fib" \
"24\t fib" \
"25\t fib" \
"26\t fib" \
"27\t fib" \
"28\t fib" \
"29\t fib" \
"30\t fib" \
"31\tmain" \
] "indented"
# make sure we can handle incomplete trace with respect to indentation
if ![runto_main] {
untested "failed to run to main"
return -1
}
# navigate to the fib in line 24 above
gdb_breakpoint fib
gdb_continue_to_breakpoint "cont to fib.1"
gdb_continue_to_breakpoint "cont to fib.2"
gdb_continue_to_breakpoint "cont to fib.3"
gdb_continue_to_breakpoint "cont to fib.4"
# start tracing
gdb_test_no_output "record btrace"
# continue until line 30 above
delete_breakpoints
set bp_location [gdb_get_line_number "bp.2" $testfile.c]
gdb_breakpoint $bp_location
gdb_continue_to_breakpoint "cont to bp.2" ".*$testfile.c:$bp_location\r\n.*"
# let's look at the trace. we expect to see the tail of the above listing.
gdb_test "record function-call-history /c" [multi_line \
"1\t fib" \
"2\t fib" \
"3\t fib" \
"4\t fib" \
"5\t fib" \
"6\tmain" \
] "indented tail"
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