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https://sourceware.org/git/binutils-gdb.git
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290a839c9a
In gdb.trace/unavailable.exp, an action is defined to collect
struct_b.struct_a.array[2] and struct_b.struct_a.array[100],
struct StructB
{
int d, ef;
StructA struct_a;
int s:1;
static StructA static_struct_a;
const char *string;
};
and the other files are not collected.
When GDB examine traceframe collected by the action, "struct_b" is
unavailable completely, which is wrong.
(gdb) p struct_b
$1 = <unavailable>
When GDB reads 'struct_b', it will request to read memory at struct_b's address
of length LEN. Since struct_b.d is not collected, no 'M' block
includes the first part of the desired range, so tfile_xfer_partial returns
TARGET_XFER_UNAVAILABLE and GDB thinks the whole requested range is unavailable.
In order to fix this problem, in the iteration to 'M' blocks, we record the
lowest address of blocks within the request range. If it has, the requested
range isn't unavailable completely. This applies to ctf too. With this patch
applied, the result looks good and fails in unavailable.exp is fixed.
(gdb) p struct_b
$1 = {d = <unavailable>, ef = <unavailable>, struct_a = {a = <unavailable>, b = <unavailable>, array = {<unavailable>,
<unavailable>, -1431655766, <unavailable> <repeats 97 times>, -1431655766, <unavailable> <repeats 9899 times>}, ptr = <unavailable>, bitfield = <unavailable>}, s = <unavailable>, static static_struct_a = {a = <unavailable>, b = <unavailable>, array = {<unavailable> <repeats 10000 times>}, ptr = <unavailable>,
bitfield = <unavailable>}, string = <unavailable>}
gdb:
2014-05-05 Yao Qi <yao@codesourcery.com>
Pedro Alves <palves@redhat.com>
* tracefile-tfile.c (tfile_xfer_partial): Record the lowest
address of blocks that intersects the requested range. Trim
LEN up to LOW_ADDR_AVAILABLE if read from executable read-only
sections.
* ctf.c (ctf_xfer_partial): Likewise.
gdb/testsuite:
2014-05-05 Yao Qi <yao@codesourcery.com>
* gdb.trace/unavailable.exp (gdb_collect_args_test): Save
traceframes into tfile and ctf trace files. Read data from
trace file and test collected data.
(gdb_collect_locals_test): Likewise.
(gdb_unavailable_registers_test): Likewise.
(gdb_unavailable_floats): Likewise.
(gdb_collect_globals_test): Likewise.
(top-level): Append "ctf" to trace_file_targets if GDB
supports.
767 lines
24 KiB
Plaintext
767 lines
24 KiB
Plaintext
# Copyright 1998-2014 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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load_lib "trace-support.exp"
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standard_testfile unavailable.cc
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set executable $testfile
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if {[prepare_for_testing $testfile.exp $testfile $srcfile \
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{debug nowarnings c++}]} {
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return -1
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}
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set ws "\[\r\n\t \]+"
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set cr "\[\r\n\]+"
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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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} 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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# Utility procs
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#
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proc test_register { reg } {
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global gdb_prompt
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global hex
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global cr
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gdb_test_multiple "print /x $reg" "collected $reg" {
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-re "\\$\[0-9\]+ = \[x0\]+$cr$gdb_prompt $" {
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fail "collected $reg (zero)"
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}
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-re "\\$\[0-9\]+ = $hex$cr$gdb_prompt $" {
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pass "collected $reg"
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}
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-re "\[Ee\]rror.*$gdb_prompt $" {
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fail "collected $reg (error)"
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}
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}
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}
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proc test_register_unavailable { reg } {
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gdb_test "print /x $reg" \
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"<unavailable>" \
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"correctly report $reg as unavailable"
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}
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proc prepare_for_trace_test {} {
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global executable
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clean_restart $executable
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runto_main
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gdb_test "break begin" ".*" ""
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gdb_test "break end" ".*" ""
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}
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proc run_trace_experiment { test_func } {
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global gdb_prompt
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gdb_test "continue" \
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".*Breakpoint \[0-9\]+, begin .*" \
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"advance to begin"
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gdb_test_no_output "tstart" "start trace experiment"
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gdb_test "continue" \
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"Continuing.*Breakpoint \[0-9\]+, end.*" \
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"run trace experiment"
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gdb_test "tstop" \
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"\[\r\n\]+" \
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"stop trace experiment"
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gdb_test "tfind start" \
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"#0 $test_func .*" \
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"tfind test frame"
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}
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# Test that "display VAR" works as expected, assuming VAR is wholly
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# unavailable.
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proc test_maybe_regvar_display { var } {
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global gdb_prompt
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# Evaluating VAR's location description may throw an internal
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# "unavailable" exception, if for example, the value of a register
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# necessary for computing VAR's location is unavailable. Such an
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# exception is caught, and should not cause automatic disablement
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# of the current display being printed. (GDB used to disable the
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# current display whenever any exception was thrown.)
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set test "display $var"
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gdb_test_multiple "$test" "$test" {
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-re "Disabling display ? to avoid infinite recursion.*$gdb_prompt $" {
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fail "$test"
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}
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-re "display ${var}\r\n1: ${var} = <unavailable>\r\n$gdb_prompt $" {
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pass "$test"
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}
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}
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gdb_test "info display" ".*1:\[ \t\]+y\[ \t\]+${var}" "display ${var} is enabled"
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gdb_test "undisp" \
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"" \
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"delete $var display" \
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".*Delete all auto-display expressions.*y or n. $" \
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"y"
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}
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#
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# Test procs
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#
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proc gdb_collect_args_test_1 {} {
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global cr
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# Test printing the variables, and also their addresses. We
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# haven't collected any stack, so there's no way GDB can figure
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# out the latter.
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gdb_test "print argc" " = <unavailable>"
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gdb_test "print &argc" \
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"Can't take address of \"argc\" which isn't an lvalue\."
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gdb_test "print argi" " = <unavailable>"
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gdb_test "print &argi" \
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"Can't take address of \"argi\" which isn't an lvalue\."
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gdb_test "print argf" " = <unavailable>"
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gdb_test "print &argf" \
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"Can't take address of \"argf\" which isn't an lvalue\."
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gdb_test "print argd" " = <unavailable>"
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gdb_test "print &argd" \
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"Can't take address of \"argd\" which isn't an lvalue\."
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# struct arg as one of several args (near end of list)
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gdb_test "print argstruct" " = <unavailable>"
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gdb_test "print argstruct.memberc" " = <unavailable>"
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gdb_test "print argstruct.memberi" " = <unavailable>"
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gdb_test "print argstruct.memberf" " = <unavailable>"
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gdb_test "print argstruct.memberd" " = <unavailable>"
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gdb_test "print argarray" " = <unavailable>"
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gdb_test "print &argarray" \
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"Can't take address of \"argarray\" which isn't an lvalue\."
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gdb_test "print argarray\[0\]" "value is not available"
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# Test "info args"
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set r ""
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set r "${r}argc = <unavailable>${cr}"
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set r "${r}argi = <unavailable>${cr}"
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set r "${r}argf = <unavailable>${cr}"
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set r "${r}argd = <unavailable>${cr}"
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set r "${r}argstruct = <unavailable>${cr}"
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set r "${r}argarray = <unavailable>${cr}"
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gdb_test "info args" "$r" "info args"
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test_maybe_regvar_display "argc"
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}
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proc gdb_collect_args_test {} {
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with_test_prefix "unavailable arguments" {
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global gdb_prompt
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global testfile srcdir subdir binfile
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global trace_file_targets
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prepare_for_trace_test
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gdb_test "trace args_test_func" \
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"Tracepoint \[0-9\]+ at .*" \
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"set tracepoint"
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# Begin the test.
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run_trace_experiment args_test_func
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gdb_collect_args_test_1
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gdb_test "tfind none" \
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"#0 end .*" \
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"cease trace debugging"
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set tracefile [standard_output_file ${testfile}]
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gdb_test "tsave ${tracefile}.args.tfile" \
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"Trace data saved to file '${tracefile}.args.tfile'\.\\r" \
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"tsave ${testfile}.args.tfile"
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gdb_test "tsave -ctf ${tracefile}.args.ctf" \
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"Trace data saved to directory '${tracefile}.args.ctf'\.\\r" \
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"save ctf trace file"
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foreach target_name ${trace_file_targets} {
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# Restart GDB and read the trace data in ${TARGET_NAME} target.
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gdb_exit
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gdb_start
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gdb_reinitialize_dir $srcdir/$subdir
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gdb_file_cmd $binfile
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gdb_test "target ${target_name} ${tracefile}.args.${target_name}" ".*" \
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"change to ${target_name} target"
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with_test_prefix "${target_name}" {
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gdb_test "tfind start" "#0 args_test_func .*" \
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"tfind test frame"
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gdb_collect_args_test_1
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}
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}
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}
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}
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proc gdb_collect_locals_test_1 { func } {
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global cr
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gdb_test "print locc" " = <unavailable>"
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gdb_test "print loci" " = <unavailable>"
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gdb_test "print locf" " = <unavailable>"
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gdb_test "print locd" " = <unavailable>"
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gdb_test "print locst.memberc" " = <unavailable>"
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gdb_test "print locst.memberi" " = <unavailable>"
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gdb_test "print locst.memberf" " = <unavailable>"
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gdb_test "print locst.memberd" " = <unavailable>"
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gdb_test "print locar\[0\]" " = <unavailable>"
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gdb_test "print locar\[1\]" " = <unavailable>"
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gdb_test "print locar\[2\]" " = <unavailable>"
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gdb_test "print locar\[3\]" " = <unavailable>"
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# Test "info locals"
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set r ""
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set r "${r}locf = <unavailable>${cr}"
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set r "${r}locd = <unavailable>${cr}"
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set r "${r}locst = <unavailable>${cr}"
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set r "${r}locar = <unavailable>${cr}"
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set r "${r}i = <unavailable>${cr}"
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if { $func == "local_test_func" } {
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set r "${r}locdefst = <unavailable>${cr}"
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}
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set r "${r}locc = <unavailable>${cr}"
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set r "${r}loci = <unavailable>${cr}"
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gdb_test "info locals" "$r" "info locals"
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test_maybe_regvar_display "loci"
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}
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proc gdb_collect_locals_test { func msg } {
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with_test_prefix "unavailable locals: $msg" {
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global gdb_prompt
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global testfile srcdir subdir binfile
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global trace_file_targets
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prepare_for_trace_test
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set testline [gdb_get_line_number "set $func tracepoint here"]
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gdb_test "trace $testline" \
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"Tracepoint \[0-9\]+ at .*" \
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"set tracepoint"
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# Begin the test.
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run_trace_experiment $func
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gdb_collect_locals_test_1 $func
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gdb_test "tfind none" \
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"#0 end .*" \
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"cease trace debugging"
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set tracefile [standard_output_file ${testfile}]
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gdb_test "tsave ${tracefile}.locals.tfile" \
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"Trace data saved to file '${tracefile}.locals.tfile'\.\\r" \
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"tsave ${testfile}.locals.tfile"
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gdb_test "tsave -ctf ${tracefile}.locals.ctf" \
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"Trace data saved to directory '${tracefile}.locals.ctf'\.\\r" \
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"save ctf trace file"
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foreach target_name ${trace_file_targets} {
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# Restart GDB and read the trace data in ${TARGET_NAME} target.
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gdb_exit
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gdb_start
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gdb_reinitialize_dir $srcdir/$subdir
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gdb_file_cmd $binfile
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gdb_test "target ${target_name} ${tracefile}.locals.${target_name}" ".*" \
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"change to ${target_name} target"
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with_test_prefix "${target_name}" {
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gdb_test "tfind start" "#0 $func .*" \
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"tfind test frame"
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gdb_collect_locals_test_1 $func
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}
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}
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}
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}
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proc gdb_unavailable_registers_test_1 { } {
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global spreg
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global pcreg
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# On some archs, the $sp/$pc are a real raw registers. On others,
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# like x86, they're user registers. Test both variants.
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test_register_unavailable "\$$spreg"
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test_register_unavailable "\$sp"
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# Test reading uncollected pseudo-registers. The set of which
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# depends on target.
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if [is_amd64_regs_target] {
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# Check the raw register first.
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test_register_unavailable "\$rax"
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test_register_unavailable "\$eax"
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test_register_unavailable "\$ax"
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} elseif [is_x86_like_target] {
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# Check the raw register first.
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test_register_unavailable "\$eax"
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test_register_unavailable "\$ax"
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}
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# GDBserver always provides the PC value of regular tracepoint
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# hits, since it's the same as the tracepoint's address.
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test_register "\$$pcreg"
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test_register "\$pc"
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gdb_test "info registers" \
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"<unavailable>.*<unavailable>" \
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"info registers, multiple registers not available"
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gdb_test "info registers \$$spreg" \
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"<unavailable>" \
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"info registers \$$spreg reports not available"
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}
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proc gdb_unavailable_registers_test { } {
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with_test_prefix "unavailable registers" {
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global testfile srcdir subdir binfile
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global trace_file_targets
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prepare_for_trace_test
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# We'll simply re-use the globals_test_function for this test
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gdb_test "trace globals_test_func" \
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"Tracepoint \[0-9\]+ at .*" \
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"set tracepoint"
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# Collect nothing.
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# Begin the test.
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run_trace_experiment globals_test_func
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gdb_unavailable_registers_test_1
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gdb_test "tfind none" "#0 end .*" "cease trace debugging"
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set tracefile [standard_output_file ${testfile}]
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gdb_test "tsave ${tracefile}.registers.tfile" \
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"Trace data saved to file '${tracefile}.registers.tfile'\.\\r" \
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"tsave ${testfile}.registers.tfile"
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gdb_test "tsave -ctf ${tracefile}.registers.ctf" \
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"Trace data saved to directory '${tracefile}.registers.ctf'\.\\r" \
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"save ctf trace file"
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foreach target_name ${trace_file_targets} {
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# Restart GDB and read the trace data in ${TARGET_NAME} target.
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gdb_exit
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gdb_start
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gdb_reinitialize_dir $srcdir/$subdir
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gdb_file_cmd $binfile
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gdb_test "target ${target_name} ${tracefile}.registers.${target_name}" ".*" \
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"change to ${target_name} target"
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with_test_prefix "${target_name}" {
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gdb_test "tfind start" "#0 globals_test_func .*" \
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"tfind test frame"
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gdb_unavailable_registers_test_1
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}
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}
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}
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}
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proc gdb_unavailable_floats_1 { } {
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global gdb_prompt
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# Necessarily target specific.
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if {[istarget "x86_64-*-*"] || [istarget i?86-*]} {
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send_gdb "info float\n"
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gdb_expect_list "info float" ".*$gdb_prompt $" {
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"Status Word: <unavailable>"
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"Control Word: <unavailable>"
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"Tag Word: <unavailable>"
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"Instruction Pointer: <unavailable>:<unavailable>"
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"Operand Pointer: <unavailable>:<unavailable>"
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"Opcode: <unavailable>"
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}
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}
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}
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proc gdb_unavailable_floats { } {
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with_test_prefix "unavailable floats" {
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global testfile srcdir subdir binfile
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global trace_file_targets
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prepare_for_trace_test
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# We'll simply re-use the globals_test_function for this test
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gdb_test "trace globals_test_func" \
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"Tracepoint \[0-9\]+ at .*" \
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"set tracepoint"
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# Collect nothing.
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# Begin the test.
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run_trace_experiment globals_test_func
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gdb_unavailable_floats_1
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gdb_test "tfind none" "#0 end .*" "cease trace debugging"
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set tracefile [standard_output_file ${testfile}]
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gdb_test "tsave ${tracefile}.floats.tfile" \
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"Trace data saved to file '${tracefile}.floats.tfile'\.\\r" \
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"tsave ${testfile}.floats.tfile"
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gdb_test "tsave -ctf ${tracefile}.floats.ctf" \
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"Trace data saved to directory '${tracefile}.floats.ctf'\.\\r" \
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"save ctf trace file"
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foreach target_name ${trace_file_targets} {
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# Restart GDB and read the trace data in ${TARGET_NAME} target.
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gdb_exit
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gdb_start
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gdb_reinitialize_dir $srcdir/$subdir
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gdb_file_cmd $binfile
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gdb_test "target ${target_name} ${tracefile}.floats.${target_name}" ".*" \
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|
"change to ${target_name} target"
|
|
|
|
with_test_prefix "${target_name}" {
|
|
gdb_test "tfind start" "#0 globals_test_func .*" \
|
|
"tfind test frame"
|
|
gdb_unavailable_floats_1
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
proc gdb_collect_globals_test_1 { } {
|
|
global ws
|
|
global cr
|
|
global gdb_prompt
|
|
global hex
|
|
|
|
gdb_test "print globalc" " = <unavailable>"
|
|
gdb_test "print globali" " = <unavailable>"
|
|
gdb_test "print globalf" " = <unavailable>"
|
|
gdb_test "print globald" " = <unavailable>"
|
|
|
|
gdb_test "print globalstruct.memberc" " = <unavailable>"
|
|
gdb_test "print globalstruct.memberi" " = <unavailable>"
|
|
gdb_test "print globalstruct.memberf" " = <unavailable>"
|
|
gdb_test "print globalstruct.memberd" " = <unavailable>"
|
|
|
|
gdb_test "print globalstruct" " = <unavailable>"
|
|
|
|
gdb_test "print globalp == &globalstruct" \
|
|
"value is not available" \
|
|
"can't compare using non collected global pointer"
|
|
|
|
gdb_test "print globalarr\[1\]" " = <unavailable>"
|
|
gdb_test "print globalarr\[2\]" " = <unavailable>"
|
|
gdb_test "print globalarr\[3\]" " = <unavailable>"
|
|
|
|
gdb_test "print struct_b" \
|
|
" = {d = <unavailable>, ef = <unavailable>, struct_a = {a = <unavailable>, b = <unavailable>, array = {<unavailable>, <unavailable>, -1431655766, <unavailable> <repeats 97 times>, -1431655766, <unavailable> <repeats 9899 times>}, ptr = <unavailable>, bitfield = <unavailable>}, s = <unavailable>, static static_struct_a = {a = <unavailable>, b = <unavailable>, array = {<unavailable> <repeats 10000 times>}, ptr = <unavailable>, bitfield = <unavailable>}, string = <unavailable>}"
|
|
|
|
gdb_test "print /x struct_b" \
|
|
" = {d = <unavailable>, ef = <unavailable>, struct_a = {a = <unavailable>, b = <unavailable>, array = {<unavailable>, <unavailable>, 0xaaaaaaaa, <unavailable> <repeats 97 times>, 0xaaaaaaaa, <unavailable> <repeats 9899 times>}, ptr = <unavailable>, bitfield = <unavailable>}, s = <unavailable>, static static_struct_a = {a = <unavailable>, b = <unavailable>, array = {<unavailable> <repeats 10000 times>}, ptr = <unavailable>, bitfield = <unavailable>}, string = <unavailable>}"
|
|
|
|
gdb_test "print /x struct_b.struct_a" \
|
|
" = {a = <unavailable>, b = <unavailable>, array = {<unavailable>, <unavailable>, 0xaaaaaaaa, <unavailable> <repeats 97 times>, 0xaaaaaaaa, <unavailable> <repeats 9899 times>}, ptr = <unavailable>, bitfield = <unavailable>}"
|
|
|
|
gdb_test "print /x struct_b.struct_a.array" \
|
|
" = {<unavailable>, <unavailable>, 0xaaaaaaaa, <unavailable> <repeats 97 times>, 0xaaaaaaaa, <unavailable> <repeats 9899 times>}"
|
|
|
|
gdb_test "print /x struct_b.struct_a.array\[0\]" " = <unavailable>"
|
|
|
|
gdb_test "print /x struct_b.struct_a.array\[2\]" " = 0xaaaaaaaa"
|
|
|
|
# Check the target doesn't overcollect. GDB used to merge memory
|
|
# ranges to collect if they were close enough (collecting the hole
|
|
# as well), but does not do that anymore. It's plausible that a
|
|
# target may do this on its end, but as of this writing, no known
|
|
# target does it.
|
|
gdb_test "print {a, b, c}" \
|
|
" = \\{1, <unavailable>, 3\\}" \
|
|
"No overcollect of almost but not quite adjacent memory ranges"
|
|
|
|
# Check <unavailable> isn't confused with 0 in array element repetitions
|
|
|
|
gdb_test_no_output "set print repeat 1"
|
|
|
|
gdb_test "print /x tarray" \
|
|
" = \{\{a = 0x0, b = <unavailable>\} <repeats 2 times>, \{a = <unavailable>, b = <unavailable>\}, \{a = 0x0, b = 0x0\}, \{a = <unavailable>, b = 0x0\} <repeats 2 times>, \{a = <unavailable>, b = <unavailable>\} <repeats 2 times>\}" \
|
|
"<unavailable> is not the same as 0 in array element repetitions"
|
|
|
|
gdb_test_no_output "set print repeat 10"
|
|
|
|
# Check that value repeat handles unavailable-ness.
|
|
gdb_test "print *tarray@3" " = \\{\\{a = 0, b = <unavailable>\\}, \\{a = 0, b = <unavailable>\\}, \\{a = <unavailable>, b = <unavailable>\\}\\}"
|
|
|
|
# Static fields
|
|
|
|
gdb_test "print struct_b.static_struct_a" " = <unavailable>"
|
|
|
|
# Bitfields
|
|
|
|
gdb_test "print struct_b.struct_a.bitfield" " = <unavailable>"
|
|
|
|
# References
|
|
|
|
gdb_test "print g_int" " = <unavailable>"
|
|
|
|
gdb_test "print g_ref" \
|
|
"\\(int &\\) @$hex: <unavailable>" \
|
|
"global reference shows address but not value"
|
|
|
|
gdb_test "print *&g_ref" \
|
|
"\\$\[0-9\]+ = <unavailable>$cr" \
|
|
"referenced integer was not collected (taking address of reference)"
|
|
|
|
gdb_test "print *g_structref_p" " = <unavailable>"
|
|
|
|
# Strings
|
|
|
|
# Const string is always available, even when not collected.
|
|
gdb_test "print g_const_string" \
|
|
" = \"hello world\"$cr" \
|
|
"non collected const string is still printable"
|
|
|
|
gdb_test "print g_string_p" \
|
|
" = $hex <g_const_string> \"hello world\"" \
|
|
"printing constant string through collected pointer"
|
|
|
|
gdb_test "print g_string_unavail" \
|
|
" = <unavailable>" \
|
|
"printing non collected string"
|
|
|
|
# Incomplete strings print as an array.
|
|
gdb_test "print g_string_partial" \
|
|
"\\$\[0-9\]+ = \{<unavailable>, 101 'e', 108 'l', <unavailable>, <unavailable>, <unavailable>, <unavailable>, <unavailable>, <unavailable>, <unavailable>, <unavailable>, <unavailable>\}" \
|
|
"printing partially collected string"
|
|
|
|
# It is important for this test that the last examined value is
|
|
# <unavailable>, to exercise the case of the $__ convenience
|
|
# variable being set to <unavailable> without error.
|
|
set msg "examining partially collected object"
|
|
gdb_test_multiple "x /10x &struct_b" "$msg" {
|
|
-re "$hex <struct_b>:${ws}<unavailable>${ws}<unavailable>${ws}<unavailable>${ws}<unavailable>$cr$hex <struct_b\\+16>:${ws}<unavailable>${ws}<unavailable>${ws}0xaaaaaaaa${ws}<unavailable>$cr$hex <struct_b\\+32>:${ws}<unavailable>${ws}<unavailable>$cr$gdb_prompt $" {
|
|
pass "$msg"
|
|
}
|
|
-re "value is not available" {
|
|
fail "$msg"
|
|
}
|
|
}
|
|
|
|
gdb_test "p \$__" " = <unavailable>" "last examined value was <unavailable>"
|
|
|
|
# This tests that building the array does not require accessing
|
|
# g_int's contents.
|
|
gdb_test "print { 1, g_int, 3 }" \
|
|
" = \\{1, <unavailable>, 3\\}" \
|
|
"build array from unavailable value"
|
|
|
|
# Note, depends on previous test.
|
|
gdb_test "print \$\[1\]" \
|
|
" = <unavailable>" \
|
|
"subscript a non-memory rvalue array, accessing an unvailable element"
|
|
|
|
# Access a field of a non-lazy value, making sure the
|
|
# unavailable-ness is propagated. History values are easy
|
|
# non-lazy values, so use those. The first test just sets up for
|
|
# the second.
|
|
gdb_test "print g_smallstruct" " = <unavailable>"
|
|
gdb_test "print \$.member" " = <unavailable>"
|
|
|
|
# Cast to baseclass, checking the unavailable-ness is propagated.
|
|
gdb_test "print (small_struct) g_smallstruct_b" " = <unavailable>"
|
|
|
|
# Same cast, but starting from a non-lazy, value.
|
|
gdb_test "print g_smallstruct_b" " = <unavailable>"
|
|
gdb_test "print (small_struct) \$" " = <unavailable>"
|
|
|
|
gdb_test_no_output "set print object on"
|
|
|
|
with_test_prefix "print object on" {
|
|
# With print object on, printing a pointer may need to fetch
|
|
# the pointed-to object, to check its run-time type. Make
|
|
# sure that fails gracefully and transparently when the
|
|
# pointer itself is unavailable.
|
|
gdb_test "print virtualp" " = <unavailable>"
|
|
|
|
# no vtable pointer available
|
|
gdb_test "print derived_unavail" " = <unavailable>"
|
|
|
|
# vtable pointer available, but nothing else
|
|
gdb_test "print derived_partial" \
|
|
" = \\(Derived\\) {<Middle> = {<Base> = <unavailable>, _vptr.Middle = <unavailable>, y = <unavailable>}, _vptr.Derived = $hex <vtable for Derived.*>, z = <unavailable>}"
|
|
|
|
# whole object available
|
|
gdb_test "print derived_whole" \
|
|
" = \\(Derived\\) {<Middle> = {<Base> = {x = 2}, _vptr.Middle = $hex, y = 3}, _vptr.Derived = $hex <vtable for Derived.*>, z = 4}"
|
|
}
|
|
|
|
gdb_test_no_output "set print object off"
|
|
|
|
with_test_prefix "print object off" {
|
|
gdb_test "print virtualp" " = <unavailable>"
|
|
|
|
# no vtable pointer available
|
|
gdb_test "print derived_unavail" \
|
|
" = <unavailable>"
|
|
|
|
# vtable pointer available, but nothing else
|
|
gdb_test "print derived_partial" \
|
|
" = {<Middle> = {<Base> = <unavailable>, _vptr.Middle = <unavailable>, y = <unavailable>}, _vptr.Derived = $hex <vtable for Derived.*>, z = <unavailable>}"
|
|
|
|
# whole object available
|
|
gdb_test "print derived_whole" \
|
|
" = {<Middle> = {<Base> = {x = 2}, _vptr.Middle = $hex, y = 3}, _vptr.Derived = $hex <vtable for Derived.*>, z = 4}"
|
|
}
|
|
|
|
# An instance of a virtual class where we collected everything but
|
|
# the vptr.
|
|
gdb_test "print virtual_partial" \
|
|
" = {_vptr.Virtual = <unavailable>, z = 0}"
|
|
}
|
|
|
|
proc gdb_collect_globals_test { } {
|
|
with_test_prefix "collect globals" {
|
|
global testfile binfile srcdir subdir
|
|
global trace_file_targets
|
|
|
|
prepare_for_trace_test
|
|
|
|
set testline [gdb_get_line_number "set globals_test_func tracepoint here"]
|
|
|
|
gdb_test "trace $testline" \
|
|
"Tracepoint \[0-9\]+ at .*" \
|
|
"set tracepoint"
|
|
|
|
# We collect the initial sizeof(pointer) bytes of derived_partial
|
|
# in an attempt of collecting the vptr. Not portable, but should
|
|
# work everywhere we need to care.
|
|
gdb_trace_setactions "define actions" \
|
|
"" \
|
|
"collect struct_b.struct_a.array\[2\]" "^$" \
|
|
"collect struct_b.struct_a.array\[100\]" "^$" \
|
|
\
|
|
"collect a" "^$" \
|
|
"collect c" "^$" \
|
|
\
|
|
"collect tarray\[0\].a" "^$" \
|
|
"collect tarray\[1\].a" "^$" \
|
|
"collect tarray\[3\].a" "^$" \
|
|
"collect tarray\[3\].b" "^$" \
|
|
"collect tarray\[4\].b" "^$" \
|
|
"collect tarray\[5\].b" "^$" \
|
|
\
|
|
"collect g_string_p" "^$" \
|
|
"collect g_string_partial\[1\]" "^$" \
|
|
"collect g_string_partial\[2\]" "^$" \
|
|
\
|
|
"collect g_structref_p" "^$" \
|
|
\
|
|
"collect *((char *)&derived_partial)@sizeof\(void *\)" "^$" \
|
|
"collect derived_whole" "^$" \
|
|
\
|
|
"collect virtual_partial.z" "^$"
|
|
|
|
# Begin the test.
|
|
run_trace_experiment globals_test_func
|
|
|
|
gdb_collect_globals_test_1
|
|
|
|
gdb_test "tfind none" \
|
|
"#0 end .*" \
|
|
"cease trace debugging"
|
|
|
|
set tracefile [standard_output_file ${testfile}]
|
|
gdb_test "tsave ${tracefile}.globals.tfile" \
|
|
"Trace data saved to file '${tracefile}.globals.tfile'\.\\r" \
|
|
"tsave ${testfile}.globals.tfile"
|
|
gdb_test "tsave -ctf ${tracefile}.globals.ctf" \
|
|
"Trace data saved to directory '${tracefile}.globals.ctf'\.\\r" \
|
|
"save ctf trace file"
|
|
|
|
foreach target_name ${trace_file_targets} {
|
|
# Restart GDB and read the trace data in ${TARGET_NAME} target.
|
|
gdb_exit
|
|
gdb_start
|
|
gdb_reinitialize_dir $srcdir/$subdir
|
|
gdb_file_cmd $binfile
|
|
gdb_test "target ${target_name} ${tracefile}.globals.${target_name}" ".*" \
|
|
"change to ${target_name} target"
|
|
|
|
with_test_prefix "${target_name}" {
|
|
gdb_test "tfind start" "#0 globals_test_func .*" \
|
|
"tfind test frame"
|
|
gdb_collect_globals_test_1
|
|
}
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
proc gdb_trace_collection_test {} {
|
|
gdb_collect_globals_test
|
|
gdb_unavailable_registers_test
|
|
gdb_unavailable_floats
|
|
|
|
gdb_collect_args_test
|
|
gdb_collect_locals_test local_test_func "auto locals"
|
|
gdb_collect_locals_test reglocal_test_func "register locals"
|
|
gdb_collect_locals_test statlocal_test_func "static locals"
|
|
}
|
|
|
|
runto_main
|
|
|
|
if { ![gdb_target_supports_trace] } then {
|
|
unsupported "Current target does not support trace"
|
|
return 1
|
|
}
|
|
|
|
set trace_file_targets [list "tfile"]
|
|
gdb_test_multiple "target ctf" "" {
|
|
-re "Undefined target command: \"ctf\"\. Try \"help target\"\.\r\n$gdb_prompt $" {
|
|
}
|
|
-re "No CTF directory specified.*\r\n$gdb_prompt $" {
|
|
lappend trace_file_targets "ctf"
|
|
}
|
|
}
|
|
|
|
# Body of test encased in a proc so we can return prematurely.
|
|
gdb_trace_collection_test
|
|
|
|
# Finished!
|
|
gdb_test "tfind none" ".*" ""
|