* [PATCH] Fix PR16508
@ 2014-02-15 6:58 Yao Qi
2014-03-05 2:08 ` ping: " Yao Qi
2014-03-05 20:03 ` Tom Tromey
0 siblings, 2 replies; 6+ messages in thread
From: Yao Qi @ 2014-02-15 6:58 UTC (permalink / raw)
To: gdb-patches
This patch fixes PR16508, which is about MI "-trace-find frame-number 0"
behaves differently from CLI "tfind 0". In CLI, we check both
status->running and status->filename, but in MI, we only check
status->running, which looks wrong to me. This patch moves the code
of checking to a new function check_trace_running, and use it in
both CLI and MI.
This patch also adds a test case pr16508.exp, which fails without this
fix, and passes with the fix applied.
FAIL: gdb.trace/pr16508.exp: interpreter-exec mi "-trace-find frame-number 0"
Patch is regression tested on x86_64-linux.
gdb:
2014-02-15 Yao Qi <yao@codesourcery.com>
PR breakpoints/16508
* tracepoint.c (check_trace_running): New function.
(trace_find_command): Move code to check_trace_running and
call check_trace_running.
(trace_find_pc_command): Likewise.
(trace_find_tracepoint_command): Likewise.
(trace_find_line_command): Likewise.
(trace_find_range_command): Likewise.
* tracepoint.h (check_trace_running): Likewise.
* mi/mi-main.c (mi_cmd_trace_find): Call check_trace_running.
gdb/testsuite:
2014-02-15 Yao Qi <yao@codesourcery.com>
* gdb.trace/pr16508.exp: New file.
---
gdb/mi/mi-main.c | 3 +-
gdb/testsuite/gdb.trace/pr16508.exp | 65 +++++++++++++++++++++++++++++++++++
gdb/tracepoint.c | 29 +++++++--------
gdb/tracepoint.h | 2 +
4 files changed, 82 insertions(+), 17 deletions(-)
create mode 100644 gdb/testsuite/gdb.trace/pr16508.exp
diff --git a/gdb/mi/mi-main.c b/gdb/mi/mi-main.c
index 6983e49..8941743 100644
--- a/gdb/mi/mi-main.c
+++ b/gdb/mi/mi-main.c
@@ -2484,8 +2484,7 @@ mi_cmd_trace_find (char *command, char **argv, int argc)
return;
}
- if (current_trace_status ()->running)
- error (_("May not look at trace frames while trace is running."));
+ check_trace_running (current_trace_status ());
if (strcmp (mode, "frame-number") == 0)
{
diff --git a/gdb/testsuite/gdb.trace/pr16508.exp b/gdb/testsuite/gdb.trace/pr16508.exp
new file mode 100644
index 0000000..2a21239
--- /dev/null
+++ b/gdb/testsuite/gdb.trace/pr16508.exp
@@ -0,0 +1,65 @@
+# Copyright 2014 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 read-memory.c
+set executable $testfile
+set expfile pr16508.exp
+
+if [prepare_for_testing $expfile $executable $srcfile \
+ [list debug]] {
+ untested "failed to prepare for trace tests"
+ return -1
+}
+
+if ![runto_main] {
+ fail "Can't run to main to check for trace support"
+ return -1
+}
+
+if ![gdb_target_supports_trace] {
+ unsupported "target does not support trace"
+ return -1
+}
+
+gdb_test "trace start" ".*"
+gdb_breakpoint "end"
+
+gdb_test_no_output "tstart"
+
+gdb_test "continue" ".*Breakpoint \[0-9\]+, end .*"
+
+set tracefile [standard_output_file ${testfile}]
+
+# Save trace frames to tfile.
+gdb_test "tsave ${tracefile}.tf" \
+ "Trace data saved to file '${tracefile}.tf'.*" \
+ "save tfile trace file"
+
+# Change target to tfile.
+set test "change to tfile target"
+gdb_test_multiple "target tfile ${tracefile}.tf" "$test" {
+ -re "A program is being debugged already. Kill it. .y or n. " {
+ send_gdb "y\n"
+ exp_continue
+ }
+ -re "$gdb_prompt $" {
+ pass "$test"
+ }
+}
+
+gdb_test "tfind 0" "Found trace frame 0, tracepoint .*"
+
+gdb_test "interpreter-exec mi \"-trace-find frame-number 0\"" "done.*"
diff --git a/gdb/tracepoint.c b/gdb/tracepoint.c
index 80d0620..8cd5b74 100644
--- a/gdb/tracepoint.c
+++ b/gdb/tracepoint.c
@@ -2447,6 +2447,15 @@ tfind_1 (enum trace_find_type type, int num,
}
}
+/* Error on looking at traceframes while trace is running. */
+
+void
+check_trace_running (struct trace_status *status)
+{
+ if (status->running && status->filename == NULL)
+ error (_("May not look at trace frames while trace is running."));
+}
+
/* trace_find_command takes a trace frame number n,
sends "QTFrame:<n>" to the target,
and accepts a reply that may contain several optional pieces
@@ -2467,9 +2476,7 @@ trace_find_command (char *args, int from_tty)
{ /* This should only be called with a numeric argument. */
int frameno = -1;
- if (current_trace_status ()->running
- && current_trace_status ()->filename == NULL)
- error (_("May not look at trace frames while trace is running."));
+ check_trace_running (current_trace_status ());
if (args == 0 || *args == 0)
{ /* TFIND with no args means find NEXT trace frame. */
@@ -2519,9 +2526,7 @@ trace_find_pc_command (char *args, int from_tty)
{
CORE_ADDR pc;
- if (current_trace_status ()->running
- && current_trace_status ()->filename == NULL)
- error (_("May not look at trace frames while trace is running."));
+ check_trace_running (current_trace_status ());
if (args == 0 || *args == 0)
pc = regcache_read_pc (get_current_regcache ());
@@ -2538,9 +2543,7 @@ trace_find_tracepoint_command (char *args, int from_tty)
int tdp;
struct tracepoint *tp;
- if (current_trace_status ()->running
- && current_trace_status ()->filename == NULL)
- error (_("May not look at trace frames while trace is running."));
+ check_trace_running (current_trace_status ());
if (args == 0 || *args == 0)
{
@@ -2578,9 +2581,7 @@ trace_find_line_command (char *args, int from_tty)
struct symtab_and_line sal;
struct cleanup *old_chain;
- if (current_trace_status ()->running
- && current_trace_status ()->filename == NULL)
- error (_("May not look at trace frames while trace is running."));
+ check_trace_running (current_trace_status ());
if (args == 0 || *args == 0)
{
@@ -2644,9 +2645,7 @@ trace_find_range_command (char *args, int from_tty)
static CORE_ADDR start, stop;
char *tmp;
- if (current_trace_status ()->running
- && current_trace_status ()->filename == NULL)
- error (_("May not look at trace frames while trace is running."));
+ check_trace_running (current_trace_status ());
if (args == 0 || *args == 0)
{ /* XXX FIXME: what should default behavior be? */
diff --git a/gdb/tracepoint.h b/gdb/tracepoint.h
index dd9b48b..88ee3c8 100644
--- a/gdb/tracepoint.h
+++ b/gdb/tracepoint.h
@@ -434,6 +434,8 @@ extern void query_if_trace_running (int from_tty);
extern void disconnect_tracing (void);
extern void trace_reset_local_state (void);
+extern void check_trace_running (struct trace_status *);
+
extern void start_tracing (char *notes);
extern void stop_tracing (char *notes);
--
1.7.7.6
^ permalink raw reply [flat|nested] 6+ messages in thread
* ping: [PATCH] Fix PR16508
2014-02-15 6:58 [PATCH] Fix PR16508 Yao Qi
@ 2014-03-05 2:08 ` Yao Qi
2014-03-05 20:03 ` Tom Tromey
1 sibling, 0 replies; 6+ messages in thread
From: Yao Qi @ 2014-03-05 2:08 UTC (permalink / raw)
To: gdb-patches
On 02/15/2014 02:56 PM, Yao Qi wrote:
> This patch fixes PR16508, which is about MI "-trace-find frame-number 0"
> behaves differently from CLI "tfind 0". In CLI, we check both
> status->running and status->filename, but in MI, we only check
> status->running, which looks wrong to me. This patch moves the code
> of checking to a new function check_trace_running, and use it in
> both CLI and MI.
>
> This patch also adds a test case pr16508.exp, which fails without this
> fix, and passes with the fix applied.
>
> FAIL: gdb.trace/pr16508.exp: interpreter-exec mi "-trace-find frame-number 0"
>
> Patch is regression tested on x86_64-linux.
>
> gdb:
>
> 2014-02-15 Yao Qi <yao@codesourcery.com>
>
> PR breakpoints/16508
> * tracepoint.c (check_trace_running): New function.
> (trace_find_command): Move code to check_trace_running and
> call check_trace_running.
> (trace_find_pc_command): Likewise.
> (trace_find_tracepoint_command): Likewise.
> (trace_find_line_command): Likewise.
> (trace_find_range_command): Likewise.
> * tracepoint.h (check_trace_running): Likewise.
> * mi/mi-main.c (mi_cmd_trace_find): Call check_trace_running.
>
> gdb/testsuite:
>
> 2014-02-15 Yao Qi <yao@codesourcery.com>
>
> * gdb.trace/pr16508.exp: New file.
Ping. https://sourceware.org/ml/gdb-patches/2014-02/msg00508.html
--
Yao (é½å°§)
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH] Fix PR16508
2014-02-15 6:58 [PATCH] Fix PR16508 Yao Qi
2014-03-05 2:08 ` ping: " Yao Qi
@ 2014-03-05 20:03 ` Tom Tromey
2014-03-05 20:33 ` Pedro Alves
1 sibling, 1 reply; 6+ messages in thread
From: Tom Tromey @ 2014-03-05 20:03 UTC (permalink / raw)
To: Yao Qi; +Cc: gdb-patches
>>>>> "Yao" == Yao Qi <yao@codesourcery.com> writes:
Yao> 2014-02-15 Yao Qi <yao@codesourcery.com>
Yao> PR breakpoints/16508
Yao> * tracepoint.c (check_trace_running): New function.
Yao> (trace_find_command): Move code to check_trace_running and
Yao> call check_trace_running.
Yao> (trace_find_pc_command): Likewise.
Yao> (trace_find_tracepoint_command): Likewise.
Yao> (trace_find_line_command): Likewise.
Yao> (trace_find_range_command): Likewise.
Yao> * tracepoint.h (check_trace_running): Likewise.
Yao> * mi/mi-main.c (mi_cmd_trace_find): Call check_trace_running.
One trivial nit here.
Yao> +if [prepare_for_testing $expfile $executable $srcfile \
Yao> + [list debug]] {
Yao> + untested "failed to prepare for trace tests"
prepare calls untested for you, so no need to do it again.
Ok with this change.
Tom
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH] Fix PR16508
2014-03-05 20:03 ` Tom Tromey
@ 2014-03-05 20:33 ` Pedro Alves
2014-03-06 3:39 ` Yao Qi
2014-03-06 13:35 ` Joel Brobecker
0 siblings, 2 replies; 6+ messages in thread
From: Pedro Alves @ 2014-03-05 20:33 UTC (permalink / raw)
To: Tom Tromey; +Cc: Yao Qi, gdb-patches
On 03/05/2014 08:03 PM, Tom Tromey wrote:
> Yao> +if [prepare_for_testing $expfile $executable $srcfile \
> Yao> + [list debug]] {
> Yao> + untested "failed to prepare for trace tests"
>
> prepare calls untested for you, so no need to do it again.
Note that the first argument to prepare_for_testing is
what is passed to untested (and really only used for that),
so a better alternative even is to do:
if [prepare_for_testing "failed to prepare for trace tests" \
$executable $srcfile [list debug]] {
Although we do that all over the place, passing $expfile
to untested is useless, as that information will be
in the gdb.sum before UNTESTED anyway.
I'd support us starting to use this pattern more.
--
Pedro Alves
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH] Fix PR16508
2014-03-05 20:33 ` Pedro Alves
@ 2014-03-06 3:39 ` Yao Qi
2014-03-06 13:35 ` Joel Brobecker
1 sibling, 0 replies; 6+ messages in thread
From: Yao Qi @ 2014-03-06 3:39 UTC (permalink / raw)
To: Pedro Alves; +Cc: Tom Tromey, gdb-patches
On 03/06/2014 04:33 AM, Pedro Alves wrote:
> Note that the first argument to prepare_for_testing is
> what is passed to untested (and really only used for that),
> so a better alternative even is to do:
>
> if [prepare_for_testing "failed to prepare for trace tests" \
> $executable $srcfile [list debug]] {
>
> Although we do that all over the place, passing $expfile
> to untested is useless, as that information will be
> in the gdb.sum before UNTESTED anyway.
>
> I'd support us starting to use this pattern more.
OK, let us use this pattern. Patch below is pushed in.
--
Yao (é½å°§)
commit ccd34f75c5f6e05469f80ceece793de62fdf66db
Author: Yao Qi <yao@codesourcery.com>
Date: Sat Feb 15 08:48:53 2014 +0800
Fix PR16508
This patch fixes PR16508, which is about MI "-trace-find frame-number 0"
behaves differently from CLI "tfind 0". In CLI, we check both
status->running and status->filename, but in MI, we only check
status->running, which looks wrong to me. This patch moves the code
of checking to a new function check_trace_running, and use it in
both CLI and MI.
This patch also adds a test case pr16508.exp, which fails without this
fix, and passes with the fix applied.
FAIL: gdb.trace/pr16508.exp: interpreter-exec mi "-trace-find frame-number 0"
gdb:
2014-03-06 Yao Qi <yao@codesourcery.com>
PR breakpoints/16508
* tracepoint.c (check_trace_running): New function.
(trace_find_command): Move code to check_trace_running and
call check_trace_running.
(trace_find_pc_command): Likewise.
(trace_find_tracepoint_command): Likewise.
(trace_find_line_command): Likewise.
(trace_find_range_command): Likewise.
* tracepoint.h (check_trace_running): Likewise.
* mi/mi-main.c (mi_cmd_trace_find): Call check_trace_running.
gdb/testsuite:
2014-03-06 Yao Qi <yao@codesourcery.com>
* gdb.trace/pr16508.exp: New file.
diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index e3911e9..b5a92fb 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,18 @@
2014-03-06 Yao Qi <yao@codesourcery.com>
+ PR breakpoints/16508
+ * tracepoint.c (check_trace_running): New function.
+ (trace_find_command): Move code to check_trace_running and
+ call check_trace_running.
+ (trace_find_pc_command): Likewise.
+ (trace_find_tracepoint_command): Likewise.
+ (trace_find_line_command): Likewise.
+ (trace_find_range_command): Likewise.
+ * tracepoint.h (check_trace_running): Likewise.
+ * mi/mi-main.c (mi_cmd_trace_find): Call check_trace_running.
+
+2014-03-06 Yao Qi <yao@codesourcery.com>
+
* target.h (struct target_ops) <to_traceframe_info>: Use
TARGET_DEFAULT_NORETURN (tcomplain ()).
* target-delegates.c: Regenerated.
diff --git a/gdb/mi/mi-main.c b/gdb/mi/mi-main.c
index 6983e49..8941743 100644
--- a/gdb/mi/mi-main.c
+++ b/gdb/mi/mi-main.c
@@ -2484,8 +2484,7 @@ mi_cmd_trace_find (char *command, char **argv, int argc)
return;
}
- if (current_trace_status ()->running)
- error (_("May not look at trace frames while trace is running."));
+ check_trace_running (current_trace_status ());
if (strcmp (mode, "frame-number") == 0)
{
diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index 65b4f95..a078554 100644
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+2014-03-06 Yao Qi <yao@codesourcery.com>
+
+ * gdb.trace/pr16508.exp: New file.
+
2014-03-05 Pedro Alves <palves@redhat.com>
PR gdb/16575
diff --git a/gdb/testsuite/gdb.trace/pr16508.exp b/gdb/testsuite/gdb.trace/pr16508.exp
new file mode 100644
index 0000000..ff01b40
--- /dev/null
+++ b/gdb/testsuite/gdb.trace/pr16508.exp
@@ -0,0 +1,63 @@
+# Copyright 2014 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 read-memory.c
+set executable $testfile
+
+if [prepare_for_testing "failed to prepare for trace tests" \
+ $executable $srcfile [list debug]] {
+ return -1
+}
+
+if ![runto_main] {
+ fail "Can't run to main to check for trace support"
+ return -1
+}
+
+if ![gdb_target_supports_trace] {
+ unsupported "target does not support trace"
+ return -1
+}
+
+gdb_test "trace start" ".*"
+gdb_breakpoint "end"
+
+gdb_test_no_output "tstart"
+
+gdb_test "continue" ".*Breakpoint \[0-9\]+, end .*"
+
+set tracefile [standard_output_file ${testfile}]
+
+# Save trace frames to tfile.
+gdb_test "tsave ${tracefile}.tf" \
+ "Trace data saved to file '${tracefile}.tf'.*" \
+ "save tfile trace file"
+
+# Change target to tfile.
+set test "change to tfile target"
+gdb_test_multiple "target tfile ${tracefile}.tf" "$test" {
+ -re "A program is being debugged already. Kill it. .y or n. " {
+ send_gdb "y\n"
+ exp_continue
+ }
+ -re "$gdb_prompt $" {
+ pass "$test"
+ }
+}
+
+gdb_test "tfind 0" "Found trace frame 0, tracepoint .*"
+
+gdb_test "interpreter-exec mi \"-trace-find frame-number 0\"" "done.*"
diff --git a/gdb/tracepoint.c b/gdb/tracepoint.c
index 51d59b6..cea40e3 100644
--- a/gdb/tracepoint.c
+++ b/gdb/tracepoint.c
@@ -2443,6 +2443,15 @@ tfind_1 (enum trace_find_type type, int num,
}
}
+/* Error on looking at traceframes while trace is running. */
+
+void
+check_trace_running (struct trace_status *status)
+{
+ if (status->running && status->filename == NULL)
+ error (_("May not look at trace frames while trace is running."));
+}
+
/* trace_find_command takes a trace frame number n,
sends "QTFrame:<n>" to the target,
and accepts a reply that may contain several optional pieces
@@ -2463,9 +2472,7 @@ trace_find_command (char *args, int from_tty)
{ /* This should only be called with a numeric argument. */
int frameno = -1;
- if (current_trace_status ()->running
- && current_trace_status ()->filename == NULL)
- error (_("May not look at trace frames while trace is running."));
+ check_trace_running (current_trace_status ());
if (args == 0 || *args == 0)
{ /* TFIND with no args means find NEXT trace frame. */
@@ -2515,9 +2522,7 @@ trace_find_pc_command (char *args, int from_tty)
{
CORE_ADDR pc;
- if (current_trace_status ()->running
- && current_trace_status ()->filename == NULL)
- error (_("May not look at trace frames while trace is running."));
+ check_trace_running (current_trace_status ());
if (args == 0 || *args == 0)
pc = regcache_read_pc (get_current_regcache ());
@@ -2534,9 +2539,7 @@ trace_find_tracepoint_command (char *args, int from_tty)
int tdp;
struct tracepoint *tp;
- if (current_trace_status ()->running
- && current_trace_status ()->filename == NULL)
- error (_("May not look at trace frames while trace is running."));
+ check_trace_running (current_trace_status ());
if (args == 0 || *args == 0)
{
@@ -2574,9 +2577,7 @@ trace_find_line_command (char *args, int from_tty)
struct symtab_and_line sal;
struct cleanup *old_chain;
- if (current_trace_status ()->running
- && current_trace_status ()->filename == NULL)
- error (_("May not look at trace frames while trace is running."));
+ check_trace_running (current_trace_status ());
if (args == 0 || *args == 0)
{
@@ -2640,9 +2641,7 @@ trace_find_range_command (char *args, int from_tty)
static CORE_ADDR start, stop;
char *tmp;
- if (current_trace_status ()->running
- && current_trace_status ()->filename == NULL)
- error (_("May not look at trace frames while trace is running."));
+ check_trace_running (current_trace_status ());
if (args == 0 || *args == 0)
{ /* XXX FIXME: what should default behavior be? */
diff --git a/gdb/tracepoint.h b/gdb/tracepoint.h
index 6b00b30..8a1abbf 100644
--- a/gdb/tracepoint.h
+++ b/gdb/tracepoint.h
@@ -334,6 +334,8 @@ extern void query_if_trace_running (int from_tty);
extern void disconnect_tracing (void);
extern void trace_reset_local_state (void);
+extern void check_trace_running (struct trace_status *);
+
extern void start_tracing (char *notes);
extern void stop_tracing (char *notes);
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH] Fix PR16508
2014-03-05 20:33 ` Pedro Alves
2014-03-06 3:39 ` Yao Qi
@ 2014-03-06 13:35 ` Joel Brobecker
1 sibling, 0 replies; 6+ messages in thread
From: Joel Brobecker @ 2014-03-06 13:35 UTC (permalink / raw)
To: Pedro Alves; +Cc: Tom Tromey, Yao Qi, gdb-patches
> if [prepare_for_testing "failed to prepare for trace tests" \
> $executable $srcfile [list debug]] {
>
> Although we do that all over the place, passing $expfile
> to untested is useless, as that information will be
> in the gdb.sum before UNTESTED anyway.
>
> I'd support us starting to use this pattern more.
I think that's a good idea. I've updated the Wiki's "testcase cookbook"
accordingly. My only concern with the current verbiage is copy/pasting
of existing examples will always require some additional edits to
adjust the message for the testcase. In the wiki example, I used
"[***FILL ME IN***]" which (I think) will cause a TCL error, but
the favorite programming method being copy-and-modify, I think we are
going to miss some. So perhaps something a little more generic?
--
Joel
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2014-03-06 13:35 UTC | newest]
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2014-02-15 6:58 [PATCH] Fix PR16508 Yao Qi
2014-03-05 2:08 ` ping: " Yao Qi
2014-03-05 20:03 ` Tom Tromey
2014-03-05 20:33 ` Pedro Alves
2014-03-06 3:39 ` Yao Qi
2014-03-06 13:35 ` Joel Brobecker
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