213516ef31
This commit is the result of running the gdb/copyright.py script, which automated the update of the copyright year range for all source files managed by the GDB project to be updated to include year 2023.
406 lines
9.6 KiB
Text
406 lines
9.6 KiB
Text
# Copyright (C) 1998-2023 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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#
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# Support procedures for trace testing
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#
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#
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# Program counter / stack pointer / frame pointer for supported targets.
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# Used in many tests, kept here to avoid duplication.
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#
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if [is_amd64_regs_target] {
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set fpreg "rbp"
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set spreg "rsp"
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set pcreg "rip"
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} elseif [is_x86_like_target] {
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set fpreg "ebp"
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set spreg "esp"
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set pcreg "eip"
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} elseif [is_aarch64_target] {
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set fpreg "x29"
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set spreg "sp"
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set pcreg "pc"
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} elseif [istarget "powerpc*-*-*"] {
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set fpreg "r31"
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set spreg "r1"
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set pcreg "pc"
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} elseif { [istarget "s390*-*-*"] } {
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set fpreg "r11"
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set spreg "r15"
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set pcreg "pc"
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} else {
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set fpreg "fp"
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set spreg "sp"
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set pcreg "pc"
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}
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#
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# Procedure: gdb_trace_common_supports_arch
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# Returns true if gdb.trace/trace-common.h knows about this target.
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# Allows skipping tests that depend on being able to include this file.
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# Please keep this in sync with the supported targets in the header.
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#
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proc gdb_trace_common_supports_arch { } {
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if { [istarget "x86_64*-*-*"]
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|| [istarget "i386*-*-*"]
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|| [istarget "aarch64*-*-*"]
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|| [istarget "powerpc*-*-*"]
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|| [istarget "s390*-*-*"] } {
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return 1
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} else {
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return 0
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}
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}
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#
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# Procedure: gdb_target_supports_trace
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# Returns true if GDB is connected to a target that supports tracing.
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# Allows tests to abort early if not running on a trace-aware target.
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#
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proc gdb_target_supports_trace { } {
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global gdb_prompt
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send_gdb "tstatus\n"
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gdb_expect {
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-re "\[Tt\]race can only be run on.*$gdb_prompt $" {
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return 0
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}
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-re "\[Tt\]race can not be run on.*$gdb_prompt $" {
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return 0
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}
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-re "\[Tt\]arget does not support.*$gdb_prompt $" {
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return 0
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}
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-re ".*\[Ee\]rror.*$gdb_prompt $" {
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return 0
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}
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-re ".*\[Ww\]arning.*$gdb_prompt $" {
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return 0
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}
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-re ".*$gdb_prompt $" {
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return 1
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}
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timeout {
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return 0
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}
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}
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}
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#
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# Procedure: gdb_delete_tracepoints
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# Many of the tests depend on setting tracepoints at various places and
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# running until that tracepoint is reached. At times, we want to start
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# with a clean slate with respect to tracepoints, so this utility proc
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# lets us do this without duplicating this code everywhere.
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#
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proc gdb_delete_tracepoints {} {
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global gdb_prompt
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send_gdb "delete tracepoints\n"
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gdb_expect 30 {
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-re "Delete all tracepoints.*y or n.*$" {
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send_gdb "y\n"
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exp_continue
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}
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-re ".*$gdb_prompt $" { # This happens if there were no tracepoints }
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timeout {
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perror "Delete all tracepoints in delete_tracepoints (timeout)"
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return
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}
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}
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send_gdb "info tracepoints\n"
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gdb_expect 30 {
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-re "No tracepoints.*$gdb_prompt $" {}
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-re "$gdb_prompt $" { perror "tracepoints not deleted" ; return }
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timeout { perror "info tracepoints (timeout)" ; return }
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}
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}
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# Define actions for a tracepoint.
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# Arguments:
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# actions_command -- the command used to create the actions.
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# either "actions" or "commands".
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# testname -- identifying string for pass/fail output
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# tracepoint -- to which tracepoint(s) do these actions apply? (optional)
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# args -- list of actions to be defined.
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# Returns:
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# zero -- success
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# non-zero -- failure
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proc gdb_trace_setactions_command { actions_command testname tracepoint args } {
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global gdb_prompt
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set state 0
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set passfail "pass"
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send_gdb "$actions_command $tracepoint\n"
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set expected_result ""
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gdb_expect 5 {
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-re "No tracepoint number .*$gdb_prompt $" {
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fail $testname
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return 1
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}
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-re "Enter actions for tracepoint $tracepoint.*>" {
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if { [llength $args] > 0 } {
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set lastcommand "[lindex $args $state]"
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send_gdb "[lindex $args $state]\n"
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incr state
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set expected_result [lindex $args $state]
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incr state
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} else {
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send_gdb "end\n"
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}
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exp_continue
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}
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-re "\(.*\)\[\r\n\]+\[ \t]*>$" {
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if { $expected_result != "" } {
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regsub "^\[^\r\n\]+\[\r\n\]+" "$expect_out(1,string)" "" out
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if ![regexp $expected_result $out] {
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set passfail "fail"
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}
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set expected_result ""
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}
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if { $state < [llength $args] } {
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send_gdb "[lindex $args $state]\n"
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incr state
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set expected_result [lindex $args $state]
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incr state
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} else {
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send_gdb "end\n"
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set expected_result ""
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}
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exp_continue
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}
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-re "\(.*\)$gdb_prompt $" {
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if { $expected_result != "" } {
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if ![regexp $expected_result $expect_out(1,string)] {
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set passfail "fail"
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}
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set expected_result ""
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}
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if { [llength $args] < $state } {
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set passfail "fail"
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}
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}
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default {
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set passfail "fail"
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}
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}
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if { $testname != "" } {
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$passfail $testname
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}
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if {$passfail == "pass"} {
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return 0
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} else {
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return 1
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}
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}
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# Define actions for a tracepoint, using the "actions" command. See
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# gdb_trace_setactions_command.
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#
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proc gdb_trace_setactions { testname tracepoint args } {
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eval gdb_trace_setactions_command "actions" {$testname} {$tracepoint} $args
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}
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# Define actions for a tracepoint, using the "commands" command. See
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# gdb_trace_setactions_command.
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#
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proc gdb_trace_setcommands { testname tracepoint args } {
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eval gdb_trace_setactions_command "commands" {$testname} {$tracepoint} $args
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}
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#
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# Procedure: gdb_tfind_test
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# Find a specified trace frame.
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# Arguments:
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# testname -- identifying string for pass/fail output
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# tfind_arg -- frame (line, PC, etc.) identifier
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# exp_res -- Expected result of frame test
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# args -- Test expression
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# Returns:
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# zero -- success
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# non-zero -- failure
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#
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proc gdb_tfind_test { testname tfind_arg exp_res args } {
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global gdb_prompt
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if { "$args" != "" } {
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set expr "$exp_res"
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set exp_res "$args"
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} else {
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set expr "(int) \$trace_frame"
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}
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set passfail "fail"
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gdb_test -nopass "tfind $tfind_arg" ""
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send_gdb "printf \"x \%d x\\n\", $expr\n"
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gdb_expect 10 {
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-re "x (-*\[0-9\]+) x" {
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if { $expect_out(1,string) == $exp_res } {
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set passfail "pass"
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}
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exp_continue
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}
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-re "$gdb_prompt $" { }
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}
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$passfail "$testname"
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if {$passfail == "pass"} {
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return 0
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} else {
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return 1
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}
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}
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#
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# Procedure: gdb_readexpr
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# Arguments:
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# gdb_expr -- the expression whose value is desired
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# Returns:
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# the value of gdb_expr, as evaluated by gdb.
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# [FIXME: returns -1 on error, which is sometimes a legit value]
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#
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proc gdb_readexpr { gdb_expr } {
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global gdb_prompt
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set result -1
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send_gdb "print $gdb_expr\n"
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gdb_expect 5 {
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-re "\[$\].*= (\[0-9\]+).*$gdb_prompt $" {
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set result $expect_out(1,string)
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}
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-re "$gdb_prompt $" { }
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default { }
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}
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return $result
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}
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#
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# Procedure: gdb_gettpnum
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# Arguments:
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# tracepoint (optional): if supplied, set a tracepoint here.
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# Returns:
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# the tracepoint ID of the most recently set tracepoint.
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#
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proc gdb_gettpnum { tracepoint } {
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global gdb_prompt
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if { $tracepoint != "" } {
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gdb_test -nopass "trace $tracepoint"
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}
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return [gdb_readexpr "\$tpnum"]
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}
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#
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# Procedure: gdb_find_function_baseline
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# Arguments:
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# func_name -- name of source function
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# Returns:
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# Sourcefile line of function definition (open curly brace),
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# or -1 on failure. Caller must check return value.
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# Note:
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# Works only for open curly brace at beginning of source line!
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#
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proc gdb_find_function_baseline { func_name } {
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global gdb_prompt
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set baseline -1
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send_gdb "list $func_name\n"
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# gdb_expect {
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# -re "\[\r\n\]\[\{\].*$gdb_prompt $" {
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# set baseline 1
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# }
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# }
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}
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#
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# Procedure: gdb_find_function_baseline
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# Arguments:
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# filename: name of source file of desired function.
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# Returns:
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# Sourcefile line of function definition (open curly brace),
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# or -1 on failure. Caller must check return value.
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# Note:
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# Works only for open curly brace at beginning of source line!
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#
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proc gdb_find_recursion_test_baseline { filename } {
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global gdb_prompt
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set baseline -1
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gdb_test "list $filename:1" "" ""
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send_gdb "search gdb_recursion_test line 0\n"
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gdb_expect {
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-re "(\[0-9\]+)\[\t \]+\{.*line 0.*$gdb_prompt $" {
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set baseline $expect_out(1,string)
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}
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-re "$gdb_prompt $" { }
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default { }
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}
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return $baseline
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}
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# Return the location of the IPA library.
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proc get_in_proc_agent {} {
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global objdir
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if [target_info exists in_proc_agent] {
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return [target_info in_proc_agent]
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} else {
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return $objdir/../../gdbserver/libinproctrace.so
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}
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}
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# Execute BINFILE on target to generate tracefile. Return 1 if
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# tracefile is generated successfully, return 0 otherwise.
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proc generate_tracefile { binfile } {
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set status [remote_exec target "$binfile"]
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if { [lindex $status 0] != 0 } {
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# Failed to execute $binfile, for example on bare metal targets.
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# Alternatively, load the binary and run it. If target doesn't
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# have fileio capabilities, tracefile can't be generated. Skip
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# the test.
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if [target_info exists gdb,nofileio] {
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return 0
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}
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clean_restart $binfile
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if {![runto_main]} {
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return 0
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}
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gdb_continue_to_end "" continue 1
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gdb_exit
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}
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return 1
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}
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