350 lines
10 KiB
Plaintext
350 lines
10 KiB
Plaintext
# Copyright 1998-2018 Free Software Foundation, Inc.
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#
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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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# This file was written by Michael Snyder (msnyder@cygnus.com)
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load_lib "trace-support.exp"
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standard_testfile actions.c
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set executable $testfile
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set expfile $testfile.exp
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if [prepare_for_testing "failed to prepare" $executable $srcfile \
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[list debug nowarnings]] {
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return -1
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}
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if ![runto_main] {
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fail "can't run to main to check for trace support"
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return -1
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}
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if { ![gdb_target_supports_trace] } then {
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unsupported "current target does not support trace"
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return 1
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}
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#
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# test backtraces in trace frames
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#
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set testline1 0
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set testline2 0
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set testline3 0
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set testline4 0
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set testline5 0
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set testline6 0
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set arg1 1
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set arg2 2
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set arg3 3
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set arg4 4
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set arg5 5
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set arg6 6
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set baseline [gdb_find_recursion_test_baseline $srcfile]
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if { $baseline == -1 } {
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fail "could not find gdb_recursion_test function"
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return
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}
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set return_me 0
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gdb_test_multiple "list $baseline, +12" "all tests in this module will fail" {
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-re "\[\r\n\](\[0-9\]+).*gdbtestline 1 " {
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set testline1 $expect_out(1,string)
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exp_continue
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}
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-re "\[\r\n\](\[0-9\]+).*gdbtestline 2 " {
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set testline2 $expect_out(1,string)
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exp_continue
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}
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-re "\[\r\n\](\[0-9\]+).*gdbtestline 3 " {
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set testline3 $expect_out(1,string)
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exp_continue
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}
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-re "\[\r\n\](\[0-9\]+).*gdbtestline 4 " {
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set testline4 $expect_out(1,string)
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exp_continue
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}
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-re "\[\r\n\](\[0-9\]+).*gdbtestline 5 " {
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set testline5 $expect_out(1,string)
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exp_continue
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}
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-re "\[\r\n\](\[0-9\]+).*gdbtestline 6 " {
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set testline6 $expect_out(1,string)
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exp_continue
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}
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-re ".*$gdb_prompt $" {
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if { ($testline1 == 0) || ($testline2 == 0) || ($testline3 == 0) || ($testline4 == 0) || ($testline5 == 0) || ($testline6 == 0) } {
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untested "unexpected testline values"
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set return_me 1
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all tests in this module will fail."
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}
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}
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default {
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untested "couldn't match pattern"
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set return_me 1
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all tests in this module will fail."
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}
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}
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if { $return_me == 1 } then {
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return -1
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}
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#
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# Setup backtrace experiment. This will involve:
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# 1) a tracepoint where nothing is collected
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# 2) a tracepoint where only regs are collected
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# 3) a tracepoint where regs, locals and args are collected
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# 4) a tracepoint where regs plus some amount of stack are collected.
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#
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gdb_delete_tracepoints
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set tdp2 [gdb_gettpnum $testline2]
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set tdp3 [gdb_gettpnum $testline3]
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set tdp4 [gdb_gettpnum $testline4]
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set tdp5 [gdb_gettpnum $testline5]
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set tdp6 [gdb_gettpnum $testline6]
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if { $tdp2 <= 0 || $tdp3 <= 0 || \
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$tdp4 <= 0 || $tdp5 <= 0 || $tdp6 <= 0 } then {
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fail "setting tracepoints failed"
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return
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}
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#gdb_trace_setactions "setup TP to collect FP" \
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# "$tdp2" \
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# "collect \$fp" ""
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#
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gdb_trace_setactions "8.6: setup TP to collect regs" \
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"$tdp3" \
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"collect \$regs" "^$"
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gdb_trace_setactions "8.6: setup TP to collect regs, args, and locals" \
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"$tdp4" \
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"collect \$regs, \$args, \$locs" "^$"
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gdb_trace_setactions "8.6: setup TP to collect stack mem cast expr" \
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"$tdp6" \
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"collect \$$fpreg, \(\*\(void \*\*\) \(\$$spreg\)\) @ 128" "^$"
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gdb_test_no_output "tstart" ""
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gdb_test "break end" ".*" ""
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gdb_test "continue" \
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"Continuing.*Breakpoint $decimal, end.*" \
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"run trace experiment"
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gdb_test_no_output "tstop" ""
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proc gdb_backtrace_tdp_1 { msg } {
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global gdb_prompt
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# We are in a trace frame at which we didn't collect anything
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# except $PC. Therefore we expect to be able to identify stack
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# frame #0, but that's about all. In particular we do not expect
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# to be able to display the function's arguments or locals, and we
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# do not expect to be able to identify the caller of this function.
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gdb_test "backtrace" \
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"#0\[\t \]+gdb_recursion_test.*depth=.*" \
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"$msg"
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}
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proc gdb_backtrace_tdp_2 { msg } {
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global gdb_prompt
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# We are in a trace frame at which we collected only the registers
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# Therefore we expect to be able to identify stack frame #0, but
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# we don't expect to be able to display its args unles they are
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# passed in registers (which isn't the case for m68k), and we
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# don't expect to be able to identify the caller's stack frame.
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gdb_test "backtrace" \
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"#0\[\t \]+gdb_recursion_test.*depth=.*" \
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"$msg"
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}
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proc gdb_backtrace_tdp_3 { msg } {
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global gdb_prompt
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# We are in a trace frame at which we collected all registers, all
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# arguments and all locals. This means that the display of
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# stack frame #0 should be complete (including argument values).
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gdb_test_multiple "backtrace" "$msg" {
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-re "#0\[\t \]+gdb_recursion_test.*depth=\[0-9\]+.*q1=\[0-9\]+.*q2=\[0-9\]+.*q3=\[0-9\]+.*q4=\[0-9\]+.*q5=\[0-9\]+.*q6=\[0-9\]+.*$gdb_prompt $" {
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pass "$msg"
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}
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-re "#0\[\t \]+gdb_recursion_test.*depth=Cannot access.*$gdb_prompt $" {
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fail "$msg (failed to collect arguments)"
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}
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}
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}
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proc gdb_backtrace_tdp_4 { msg depth traceframe } {
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global gdb_prompt
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with_test_prefix "traceframe $traceframe" {
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# We are in a trace frame at which we collected all registers,
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# plus a sizeable hunk of stack memory. This should enable us to
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# display at least several stack frames worth of backtrace. We'll
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# assume that if we can't display at least "depth" levels (with
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# args), it counts as an error.
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gdb_test_multiple "backtrace" "$msg" {
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-re "#$depth\[\t \].*gdb_recursion_test.*depth=\[0-9\]+.*q1=\[0-9\]+.*q2=\[0-9\]+.*q3=\[0-9\]+.*q4=\[0-9\]+.*q5=\[0-9\]+.*q6=\[0-9\]+.*$gdb_prompt $" {
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pass "$msg"
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}
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-re "#$depth\[\t \].*gdb_recursion_test.*depth=.*$gdb_prompt $" {
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fail "$msg (args missing from #$depth stack frame)"
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}
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-re "#\[0-9\]+\[\t \].*gdb_recursion_test.*depth=.*$gdb_prompt $" {
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fail "$msg (fewer than $depth stack frames found)"
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}
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}
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set output_string0 ""
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# Match the output of command 'tdump' and save it in
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# $output_string0.
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set test "tdump on frame 0"
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gdb_test_multiple "tdump" $test {
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-re "tdump\[\r\n\]+(.*)\[\r\n\]+$gdb_prompt $" {
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set output_string0 $expect_out(1,string)
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}
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}
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gdb_test "up" ".*" ""
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# Test that command 'tdump' still works properly when the
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# selected frame is not the current frame, and save the output
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# in $output_string1.
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set test "tdump on frame 1"
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set output_string1 ""
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gdb_test_multiple "tdump" $test {
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-re "tdump\[\r\n\]+(.*)\[\r\n\]+$gdb_prompt $" {
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set output_string1 $expect_out(1,string)
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}
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}
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# Output of 'tdump' on frame 0 and frame 1 should be
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# identical.
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gdb_assert ![string compare $output_string0 $output_string1] \
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"tdump output"
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}
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}
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#
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# begin backtrace test
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#
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set timeout 60
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gdb_tfind_test "init: make sure not debugging any trace frame" "none" "-1"
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gdb_tfind_test "8.6: find start frame" "start" "0"
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gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \
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"TDP $tdp2:" ""
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gdb_backtrace_tdp_1 "8.6: Backtrace, depth == 1, collect nothing"
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gdb_tfind_test "8.6: find frame 1" "1" "1"
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gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \
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"TDP $tdp3:" ""
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gdb_backtrace_tdp_2 "8.6: Backtrace, depth == 1, collect regs"
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gdb_tfind_test "8.6: find frame 2" "2" "2"
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gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \
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"TDP $tdp4:" ""
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gdb_backtrace_tdp_3 "8.6: Backtrace, depth == 1, collect args and locals"
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gdb_tfind_test "8.6: find frame 4" "4" "4"
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gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \
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"TDP $tdp6:" ""
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gdb_backtrace_tdp_4 "8.6: Backtrace, depth == 1, collect stack mem expr" "0" 4
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gdb_tfind_test "8.6: find frame 5" "5" "5"
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gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \
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"TDP $tdp2:" ""
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gdb_backtrace_tdp_1 "8.6: Backtrace, depth == 2, collect nothing"
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gdb_tfind_test "8.6: find frame 6" "6" "6"
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gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \
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"TDP $tdp3:" ""
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gdb_backtrace_tdp_2 "8.6: Backtrace, depth == 2, collect regs"
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gdb_tfind_test "8.6: find frame 7" "7" "7"
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gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \
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"TDP $tdp4:" ""
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gdb_backtrace_tdp_3 "8.6: Backtrace, depth == 2, collect args and locals"
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gdb_tfind_test "8.6: find frame 9" "9" "9"
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gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \
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"TDP $tdp6:" ""
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gdb_backtrace_tdp_4 "8.6: Backtrace, depth == 1, collect stack mem expr" "0" 9
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gdb_tfind_test "8.6: find frame 10" "10" "10"
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gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \
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"TDP $tdp2:" ""
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gdb_backtrace_tdp_1 "8.6: Backtrace, depth == 3, collect nothing"
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gdb_tfind_test "8.6: find frame 11" "11" "11"
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gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \
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"TDP $tdp3:" ""
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gdb_backtrace_tdp_2 "8.6: Backtrace, depth == 3, collect regs"
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gdb_tfind_test "8.6: find frame 12" "12" "12"
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gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \
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"TDP $tdp4:" ""
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gdb_backtrace_tdp_3 "8.6: Backtrace, depth == 3, collect args and locals"
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gdb_tfind_test "8.6: find frame 14" "14" "14"
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gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \
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"TDP $tdp6:" ""
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gdb_backtrace_tdp_4 "8.6: Backtrace, depth == 1, collect stack mem expr" "0" 14
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gdb_tfind_test "8.6: find frame 15" "15" "15"
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gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \
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"TDP $tdp2:" ""
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gdb_backtrace_tdp_1 "8.6: Backtrace, depth == 4, collect nothing"
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gdb_tfind_test "8.6: find frame 16" "16" "16"
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gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \
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"TDP $tdp3:" ""
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gdb_backtrace_tdp_2 "8.6: Backtrace, depth == 4, collect regs"
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gdb_tfind_test "8.6: find frame 17" "17" "17"
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gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \
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"TDP $tdp4:" ""
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gdb_backtrace_tdp_3 "8.6: Backtrace, depth == 4, collect args and locals"
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gdb_tfind_test "8.6: find frame 19" "19" "19"
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gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \
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"TDP $tdp6:" ""
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gdb_backtrace_tdp_4 "8.6: Backtrace, depth == 1, collect stack mem expr" "0" 19
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gdb_test "printf \"x \%d x\\n\", depth == 3" \
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"x 0 x" \
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"1.13: trace in recursion: depth not equal to 3"
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# Finished!
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gdb_test "tfind none" ".*" ""
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