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# Copyright 2013-2019 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 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/>.
load_lib trace-support.exp
standard_testfile trace-unavailable.c
if { [prepare_for_testing "failed to prepare" ${testfile} ${srcfile} {debug nopie}] } {
return -1
}
if ![runto_main] {
fail "can't run to main to check for trace support"
return -1
}
if ![gdb_target_supports_trace] {
unsupported "current target does not support trace"
return -1
}
gdb_exit
load_lib mi-support.exp
set MIFLAGS "-i=mi"
if [mi_gdb_start] {
return
}
mi_run_to_main
mi_gdb_test "-break-insert marker" \
"\\^done,bkpt=\{number=\"${decimal}\",type=\"breakpoint\".*\"\}" \
"insert tracepoint on marker"
mi_gdb_test "-break-insert -a bar" \
"\\^done,bkpt=\{number=\"${decimal}\",type=\"tracepoint\".*\"\}" \
"insert tracepoint on bar"
# Define an action.
mi_gdb_test "-break-commands 3 \"collect array\" \"collect j\" \"end\" " \
{\^done} "set action"
mi_gdb_test "-break-insert -a foo" \
"\\^done,bkpt=\{number=\"${decimal}\",type=\"tracepoint\".*\"\}" \
"insert tracepoint on foo"
# Collect 'main' to make sure no registers are collected except PC.
mi_gdb_test "-break-commands 4 \"collect main\" \"end\" " \
{\^done} "set action on tracepoint 4"
mi_gdb_test "-trace-start" {.*\^done} "trace start"
mi_send_resuming_command "exec-continue" "continuing to marker"
mi_expect_stop \
"breakpoint-hit" "marker" ".*" ".*" ".*" {"" "disp=\"keep\""} \
"stop at marker"
mi_gdb_test "-trace-stop" {.*} "trace stop"
# Save trace frames to tfile.
set tracefile [standard_output_file ${testfile}]
mi_gdb_test "-trace-save ${tracefile}.tf" ".*\\^done" \
"save tfile trace file"
# Save trace frames to ctf.
mi_gdb_test "-trace-save -ctf ${tracefile}.ctf" ".*\\^done" \
"save ctf trace file"
proc test_trace_unavailable { data_source } {
global decimal
with_test_prefix "$data_source" {
# Test MI commands '-stack-list-locals', '-stack-list-arguments',
# and '-stack-list-variables'.
mi_gdb_test "-trace-find frame-number 0" \
".*\\^done,found=\"1\",tracepoint=\"${decimal}\",traceframe=\"0\",frame=\{.*" \
"-trace-find frame-number 0"
# The "print entry-values" option shouldn't affect the output of
# '-stack-list-locals'.
foreach entry_values { no only preferred if-needed both compact default } {
mi_gdb_test "-gdb-set print entry-values $entry_values" {\^done} ""
with_test_prefix "$entry_values" {
# Test MI command '-stack-list-locals'.
mi_gdb_test "-stack-list-locals --simple-values" \
".*\\^done,locals=\\\[\{name=\"array\",type=\"unsigned char \\\[2\\\]\"\},\{name=\"i\",type=\"int\",value=\"<unavailable>\"\}\\\]" \
"-stack-list-locals --simple-values"
}
}
mi_gdb_test "-gdb-set print entry-values no" {\^done} \
"-gdb-set print entry-values no"
# Test MI command '-stack-list-locals'.
mi_gdb_test "-stack-list-locals --simple-values" \
".*\\^done,locals=\\\[\{name=\"array\",type=\"unsigned char \\\[2\\\]\"\},\{name=\"i\",type=\"int\",value=\"<unavailable>\"\}\\\]" \
"-stack-list-locals --simple-values"
mi_gdb_test "-stack-list-locals --skip-unavailable --simple-values" \
".*\\^done,locals=\\\[\{name=\"array\",type=\"unsigned char \\\[2\\\]\"\}\\\]" \
"-stack-list-locals --skip-unavailable --simple-values"
# Test MI command '-stack-list-arguments'.
mi_gdb_test "-stack-list-arguments --simple-values" \
".*\\^done,stack-args=\\\[frame=\{level=\"0\",args=\\\[\{name=\"j\",type=\"int\",value=\"4\"\},\{name=\"s\",type=\"char \\\*\",value=\"<unavailable>\"\}\\\]\},.*\}.*" \
"-stack-list-arguments --simple-values"
mi_gdb_test "-stack-list-arguments --skip-unavailable --simple-values" \
".*\\^done,stack-args=\\\[frame=\{level=\"0\",args=\\\[\{name=\"j\",type=\"int\",value=\"4\"\}\\\]\},.*\}.*" \
"-stack-list-arguments --skip-unavailable --simple-values"
# Test MI command '-stack-list-variables'.
mi_gdb_test "-stack-list-variables --simple-values" \
".*\\^done,variables=\\\[\{name=\"j\",arg=\"1\",type=\"int\",value=\"4\"\},\{name=\"s\",arg=\"1\",type=\"char \\\*\",value=\"<unavailable>\"\},\{name=\"array\",type=\"unsigned char \\\[2\\\]\"\},\{name=\"i\",type=\"int\",value=\"<unavailable>\"\}\\\]" \
"-stack-list-variables --simple-values"
mi_gdb_test "-stack-list-variables --skip-unavailable --simple-values" \
".*\\^done,variables=\\\[\{name=\"j\",arg=\"1\",type=\"int\",value=\"4\"\},\{name=\"array\",type=\"unsigned char \\\[2\\\]\"\}\\\]" \
"-stack-list-variables --skip-unavailable --simple-values"
mi_gdb_test "-trace-find frame-number 1" \
".*\\^done,found=\"1\",tracepoint=\"${decimal}\",traceframe=\"1\",frame=\{.*" \
"-trace-find frame-number 1"
set pcnum -1
set gpr0num -1
if [is_amd64_regs_target] {
set pcnum 16
set gpr0num 0
} elseif [is_x86_like_target] {
set pcnum 8
set gpr0num 0
} elseif [is_aarch64_target] {
set pcnum 32
set gpr0num 0
} elseif [istarget "powerpc*-*-*"] {
set pcnum 64
set gpr0num 0
} elseif { [istarget "s390*-*-*"] } {
# Strictly speaking, this is PSWA, not PC.
set pcnum 1
set gpr0num 2
} else {
# Other ports support tracepoint should define the number
# of its own pc register.
}
if { $pcnum != -1 } {
global hex
# Test that register 0 and PC are displayed, and register
# 0 is unavailable.
mi_gdb_test "-data-list-register-values x ${gpr0num} ${pcnum}" \
".*\\^done,register-values=\\\[\{number=\"${gpr0num}\",value=\"<unavailable>\"\},\{number=\"${pcnum}\",value=\"${hex}\"\}\\\]" \
"-data-list-register-values x"
# Test that only available register PC is displayed.
mi_gdb_test "-data-list-register-values --skip-unavailable x ${gpr0num} ${pcnum}" \
".*\\^done,register-values=\\\[\{number=\"${pcnum}\",value=\"${hex}\"\}\\\]" \
"-data-list-register-values --skip-unavailable x"
}
# Don't issue command '-trace-find none' to return from
# tfind mode (examining trace frames) on purpose, in order
# to test that GDB is able to clear its tracing-related local state
# in the next -target-select.
# mi_gdb_test "-trace-find none" ".*\\^done,found=\"0\".*" "-trace-find none"
}
}
test_trace_unavailable "live"
# Change target to ctf if GDB supports it.
set msg "-target-select ctf"
send_gdb "-target-select ctf ${tracefile}.ctf\n"
gdb_expect {
-re ".*\\^connected.*${mi_gdb_prompt}$" {
# GDB supports ctf, do the test.
test_trace_unavailable "ctf"
}
-re ".*\\^error,msg=\"Undefined target command.*${mi_gdb_prompt}$" {
# GDB doesn't support ctf, skip the test.
unsupported "gdb does not support ctf target"
}
-re ".*$mi_gdb_prompt$" {
fail "$msg"
}
timeout {
fail "$msg (timeout)"
}
}
# Change target to tfile.
mi_gdb_test "-target-select tfile ${tracefile}.tf" ".*\\^connected.*" \
"-target-select tfile"
test_trace_unavailable "tfile"
mi_gdb_exit
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